JP4115426B2 - Horizontal dust remover - Google Patents

Description

  The present invention relates to fine dust and mist generated in factories, welding fumes generated in welding booths, oil mist, smoke and welding fumes generated around various types of work equipment. A fluid that includes a mixture (hereinafter collectively referred to as dust) and presents a gas phase as a whole, or a fluid that includes a liquid such as cleaning water or oil that is sucked together with the gas (hereinafter referred to as “gas phase fluid” in the present specification). The present invention relates to a dust removal apparatus for removing a removal object such as dust from the gas phase fluid.

As a dust removing device for processing this kind of gas-phase fluid, a gas-phase fluid processing path is formed in the casing, and a baffle that collides with the gas-phase fluid or a gas-phase fluid in contact with the gas-phase fluid in the processing path A device that captures oil mist, welding fume, and the like contained in a fluid with a filter made of a cloth-like filter medium has been conventionally known (see Patent Document 1).
Further, when a gas phase fluid containing mainly dust as a gas phase fluid is to be treated, there is a known cyclone type dust removing device as shown in FIG.

Registered Utility Model No. 3006924 (paragraphs “0010”, “0012”, “FIG. 1”, “FIG. 2”)

According to the technique disclosed in Patent Document 1 above, dust in the gas phase fluid is collected and removed by contact with the cloth-like filter medium when the gas phase fluid collides with the baffle or flows through the labyrinth channel. However, there are the following problems when a large amount of dust or oil is contained in the gas phase fluid.
In other words, in the collection by contact of the gas phase fluid with the filter medium, if the dust removal rate in the gas phase fluid is increased, a long path is required until the dust removal rate from the gas phase fluid reaches the target high removal accuracy. Therefore, it is necessary to provide a large number of multistage filter media. For this reason, it is easy to cause inconvenience that leads to an increase in the size of the apparatus and complicated maintenance that the filter medium is clogged at an early stage and requires a lot of work to replace the filter medium.
In the dust removing apparatus according to Patent Document 1, in order to extend the effective operation period until the filter medium is clogged as much as possible, the object to be removed contained in the gas phase fluid is contacted with the filter medium using the above-described baffler or the like. However, it is devised that most of the objects to be removed are removed from the airflow as soon as possible and collected in a collection container equipped in the casing.
In this way, it is effective in that the removal rate of the object to be removed can be improved with a relatively small dust removing device by recovering a large amount of the object to be removed at the initial stage in the treatment path of the gas phase fluid. However, there is a new problem that maintenance work for taking out the deposits of the removed objects that have fallen out of the airflow is required at a considerably high frequency. In other words, when a large amount of the object to be removed is accumulated in the container for collecting the object to be removed, depending on the property of the object to be removed, it may be highly viscous or easily hardened. There is a possibility that it cannot even be removed from the casing, and in order to avoid this, there is an inconvenience that frequent maintenance is required.
If the entire casing of the dust remover is made extremely large, it is possible to secure a large storage space for the object to be removed and reduce the maintenance frequency. However, this impairs the meaning of downsizing the folding dust remover. In addition, depending on the working environment, there are working conditions in which the concentration of the object to be removed in the gas phase fluid is thin and the recovery amount does not increase much even during a considerably long operation period. In such a working environment, a large collection container is unnecessary. It will be a long product.

Further, in the known cyclone type dust removing device, the processing object is limited to the one mainly composed of dust, and the device itself tends to be extremely large.
In other words, an ordinary cyclone type dust remover has a conical cylinder with a concentric bottom and is continuously connected to the lower side of a cylindrical cylindrical chamber into which gas-phase fluid is blown from the tangential direction, and dust is discharged from a dust discharge port at the lower end of the cone cylinder. It is configured to drop by its own weight, and the gas is discharged from the exhaust tube inserted in the center of the cylindrical chamber to the outside, but the dimensional relationship is generally set as follows as shown in FIG. Is done.
Diameter of cylindrical chamber: D
Exhaust port diameter from cylindrical chamber: d
Dust outlet diameter: δ
Vertical height of cylindrical chamber: L
Conical cylinder height: H
If
d = D / 2
δ = D / 2 to D / 4
L = D
H = 2D
It is set to a dimension close to the dimension that satisfies the above relationship. Therefore, a size about three times as large as the diameter D of the cylindrical chamber corresponding to the diameter of the swirling flow of the gas phase fluid is required as the dust removal structure, and further, a large recovery container and installation base are required below the dust removal structure. Becomes a device with a considerably high vertical height.
Therefore, if you want to suck in dust or smoke that stays at a relatively high position in the factory, or if you want to reduce the floor space for installing a dust removal device by placing it on the upper side of a relatively large processing device, etc. Since the height position where the device is to be installed becomes high, it is impossible to install a tall dust removal device itself due to the height restriction of the indoor ceiling, or even if it can be installed, it becomes too high and the stability is poor. There are problems such as difficult to do.

  An object of the present invention is to provide a recovery structure that can perform processing on various gas-phase fluids as processing targets, but adapts the recovery of the removal object to be removed from the gas-phase fluids to various conditions. Furthermore, another object of the present invention is to provide a dust removing device having a horizontal structure suitable for being arranged at a place where the vertical height is restricted, and to further reduce the size of the dust removing device itself.

In the horizontal dust removing apparatus according to the present invention taken to achieve the above object, the following technical means are taken.
[Solution 1]
According to the horizontal dust removing apparatus of the present invention, the processing path for removing the object to be removed from the gas-phase fluid sucked from the intake port and discharging it from the discharge port to the outside is provided inside the casing. In the processing path, a swirling dust removing unit that swirls and flows the gas-phase fluid sucked and introduced from the intake port in the casing,
This swirling dust removing part is composed of an inner wind guide cylinder and an outer envelope cylinder that set the direction of the cylinder axis along the horizontal direction,
A gas-phase fluid inlet is provided on one end side in the horizontal direction of the wind guide cylinder and a delivery port is provided on the other end. The outer cylinder is formed in a bottomed cylinder, and the cylinder bottom is Opposed to the introduction port of the wind guide cylinder, and disposed in a state with a predetermined interval between the introduction port and the outer peripheral side of the wind guide cylinder,
The introduction direction of the gas phase fluid to be processed is set so that the swirling flow of the gas phase fluid is generated in an annular swirling flow path formed between the inner wind guide cylinder and the outer envelope cylinder. It is set in a direction along the tangent line of the wind guide cylinder, and includes a wind generating means for sucking and discharging the gas-phase fluid inside the wind guide cylinder from the delivery port opposite to the inlet to the lower side of the processing path,
In the swirling dust removing section, a suction action from the inside of the baffle cylinder is applied to the peripheral wall portion near the feed outlet located on the opposite side of the introduction port of the baffle cylinder located inside the swirling flow path, A short-circuiting vent is formed for sucking a part of the gas-phase fluid during swirling at a position closer to the processing system than the introduction port, and one of the surrounding cylinders located outside the swirling flow path. Forming a dust separation part that allows the removal object to be removed from the swirling flow to the outer side of the swirling flow to escape from the swirling flow,
Set the dust separator external extraction tube to free-fall to-be-removed substance escaped guided outside the casing from the swirling flow of
A secondary processing unit for removing the object to be removed remaining in the gas-phase fluid sent from the swirling dust removing unit in the processing system path on the lower side in the gas-phase fluid flow direction than the swirling dust removing unit, This secondary processing unit is composed of an inversion processing unit and a dust trapping unit,
The inversion processing unit crosses the flow of the gas phase fluid sent out from the swirling dust removing unit and directs the flow direction of the gas phase fluid from the central part to the radial direction, and then reverses the flow in the forward direction at the outer peripheral part. A collision plate having a concave curved surface composed of a bowl-shaped quadric surface that guides the
The dust trapping unit includes a lattice-like louver in which a guide surface of a ventilation channel is formed so as to diffuse the gas-phase fluid after being reversed by the collision plate in the vertical direction and the horizontal direction, and the diffused gas-phase A filter medium layer configured to be filled with a spiral metal wire so as to come into contact with a fluid;
The technical means that each of the collision plate, the lattice louver, and the filter medium layer is made of a metal material is provided.

[Action]
The effects of taking the above technical means are as follows.
According to the configuration of the first aspect of the present invention, the gas phase fluid to be processed from the outside is provided between the inner air guide cylinder and the outer envelope cylinder in which the direction of the cylinder axis is set along the horizontal direction. , And a swirling dust removing unit that applies a swirling force to the gas between the wind guiding cylinder and the outer cylinder by the suction action from the inside of the inner wind guiding cylinder.
In this swirling dust removing portion, a concave groove along the front-rear direction of the cylindrical shaft core is provided in a part of the outer peripheral portion of the outer cylinder that is located outside the swirling flow and guides the swirling flow, so Objects to be removed such as dust and liquid having a large mass contained on the outside can be efficiently escaped and removed from the swirling flow.
And inside the swirl flow with little dust mixing ratio (turning center side), the inner wall of the wind guide tube is located on the opposite side of the inlet on the one end side from the inside of the wind guide tube. Before the swirl flow reaches the inlet on one end side of the wind guide cylinder by forming a short-circuit vent for sucking a part of the swirl flow at a position upstream of the introduction port by the suction action of The suction introduction has started. This substantially expands the suction area for the swirling flow, configures the wind guide cylinder without a short-circuiting vent, and sucks and introduces the gas phase fluid to be processed from only the inlet on one end side. Compared with the case where it does, the wind speed of a suction wind is comparatively low in this site | part.
In addition, the short-circuit vent formed in the wind guide cylinder also affects the velocity distribution state of the swirling flow in the swirling flow axis direction. For example, there are the following differences compared to the case where a tapered tubular body without a short-circuiting ventilation portion and having a small-diameter inlet only on one end side of the air guide tubular body is employed.
That is, in the vicinity of the portion facing the intake port at the outer periphery of the wind guide cylinder at the initial stage of turning, the entire introduced gas-phase fluid is linearly moved along the tangent to the outer peripheral surface of the wind guide cylinder It is introduced with the dynamic inertia of this, and this is guided so as to change the direction in the swirling direction to become a swirling flow. There is nothing in particular other than the friction with the outer peripheral wall of the wind guide cylinder as an element for reducing the speed. For this reason, the speed distribution has a maximum speed near the center of the flow path width of the inlet flow path portion for introducing the gas phase fluid to be processed from the outside, and the swirling speed is also decreased near the outer peripheral surface of the wind guide cylinder. There is a tendency that turning at a relatively high speed is maintained as a whole in a small state. Therefore, when the gas-phase fluid is sucked and guided from the inlet on one end side of the wind guide cylinder to the lower side of the processing path, the swirling flow reaches a predetermined low speed near the inlet on the one end side of the wind guide cylinder. If the suction and derivation is attempted after reducing the speed, the length of the wind guide cylinder in the cylinder axis direction needs to be made sufficiently long to sufficiently increase the swirl movement distance of the gas phase fluid.
In other words, the suction speed is reduced as much as possible so that most of the fine floating dust that is difficult to separate by centrifugal force due to swirling is sucked and led out from the inlet on one end side of the wind guide tube to the downstream processing system. It is desirable to reduce the suction force or reduce the speed of the swirling flow near the lower end of the wind guide cylinder as much as possible so that the dust weight drops efficiently. When the pressure is extremely reduced, the processing capability is remarkably reduced, and there is a problem that if the swirl moving distance of the gas phase fluid is sufficiently long in order to sufficiently reduce the swirling flow speed, the apparatus becomes large.
In the present invention, in order to solve such a problem, as described above, separately from the introduction port on one end side of the air guide tube body, on the peripheral wall portion near the delivery port located on the opposite side of the introduction port, By a suction action from the inside of the wind guide cylinder, a number of short-circuiting ventilation portions for sucking a part of the swirling flow at a position on the upper side of the introduction port are formed, and the suction area for the swirling flow is substantially reduced. By expanding, the suction speed at the introduction port is reduced, and suction introduction is started before the swirling flow reaches the introduction port on one end side of the wind guide cylinder. The swirl resistance inside the swirl flow is reduced by reducing the swirl speed inside the swirl flow, and consequently the swirl speed of the swirl flow is attenuated. The length in the cylinder axis direction can be shortened.

Further, according to the configuration of the invention according to claim 1 of the present invention, there is provided an external take-out cylinder that guides the object to be removed escaped from the swirling flow by the dust separation part to the outside of the casing and drops it by its own weight. A space for storing and recovering the object to be removed escaped from the swirling flow of the dust removing unit can be configured separately from the swirling dust removing unit. Therefore, any means for accommodating the object to be removed can be employed separately from the dust removing device according to the use conditions.
In addition, the space for storing and collecting the object to be removed that has fallen from the swirling flow is configured separately from the swirling dust removing portion, and is formed in a part of the outer cylinder. Winding that causes the separation part to drop the object to be removed by its own weight without the swirling action of the swirling flow in the swirling dust removing section being transmitted, and sucking and discharging the gas phase fluid inside the wind guide cylinder to the lower side of the processing path Since the suction action by the means is not transmitted to the collection space where the object to be removed is accumulated, even if the object to be removed accumulated in this collection space is a light dust, it will rise again to the swirl dust removal part side Can be avoided almost certainly.
Further, in the present invention, the direction of the cylinder axis is set in a state along the horizontal direction, and the wind guide cylinder and the outer cylinder are arranged in the lateral attitude. In addition to these, as described above, Since the length in the cylinder axis direction of both cylinders can be shortened as much as possible, a dust removing device having a compact structure can be configured both in the vertical direction and in the horizontal direction.

[Action]
Moreover, the further effect | action by having taken said technical means is as follows.
As a secondary processing section provided in the processing system path on the lower side in the gas-phase fluid flow direction than the swirling dust removal section, the flow direction of the gas-phase fluid is directed from the center to the radial direction so as to intersect the flow of the gas-phase fluid After that, the collision plate having a concave curved surface composed of a bowl-shaped secondary curved surface that guides the flow to be reversed in the forward direction at the outer periphery, and the gas phase fluid is diffused in the vertical and horizontal directions. A lattice-like louver in which a guide surface of a ventilation channel is formed, and a filter medium layer filled with a spiral metal wire so as to come into contact with the diffused gas phase fluid, and these collisions Since each of the plate, the lattice-like louver, and the filter medium layer is made of a metal material, the dust removing device can be constructed with extremely low maintenance frequency.
In other words, in addition to being able to remove dust and the like with high performance in advance by the centrifugal separation action by the swirling dust remover, a comparison that remains in the gas phase fluid after removing dust or liquid with relatively large mass Of the object to be removed with a small target mass by colliding with the collision plate and changing the direction in the reversal direction, and by trapping with the metal filter medium by diffusing with a lattice baffle, and removing the object If the object is of a liquefiable nature such as oil mist, the fine particles are enlarged due to collision or contact with the metal surface, liquefy and flow down with dust adhering to the metal. The dust removing device can be operated.
Therefore, a large amount of objects removed and collected by the swirling dust removal unit can be collected in a collection container that is not related to the size of the dust removal device via the external take-out cylinder. This eliminates the need for the most frequent maintenance. And the fine objects to be recovered after passing through the swirling dust removal part are useful for relieving clogging if the recovered amount is small and easily liquefied. Less is enough.

[Solution 2]
In addition to the configuration of the invention according to the first aspect , the dust removing device of the present invention is configured such that, as described in the second aspect, the outer cylindrical body of the swirling dust removing section is located at the bottom of the cylinder more than the outer diameter of the air guide cylinder. It is preferable to employ a configuration in which an opening having a large diameter, a lid that can be opened and closed, and a gas-phase fluid intake port are provided in the outer peripheral portion of the outer cylinder.

[Action]
The effects of taking the above technical means are as follows.
That is, since an opening having a diameter larger than the outer diameter of the air guide cylinder is provided at the bottom of the outer cylinder, by opening and closing the lid provided in the opening, The maintenance work such as cleaning of the air guide cylinder inside the outer cylinder without removing the gas duct introduction duct connected to the intake provided in the outer cylinder is easy.

According to the first aspect of the present invention, swirling dust removal that applies a swirling force to the gas-phase fluid between the inner air guide tube and the outer tube body in which the direction of the cylinder axis is set along the horizontal direction. Part of the outer cylindrical body that is positioned outside the swirling flow and guides the swirling flow is provided with a concave groove along the longitudinal direction of the cylindrical axis, and is included in the outermost portion of the swirling flow. A large mass of dust or liquid to be removed is efficiently removed from the swirling flow. Inside the swirling flow where the mixing ratio of dust or the like is low (the swiveling center side), an inlet on one end side of the air guide cylinder Is a short circuit for sucking a part of the swirling flow at the upper side of the flow path from the introduction port by the suction action from the inside of the air guide cylinder to the peripheral wall portion near the delivery port located on the opposite side By forming a ventilation part and substantially expanding the suction area for the swirling flow, the suction speed is reduced, and Suction introduction starts before the swirl flow reaches the inlet on the one end side of the wind guide cylinder, and this suction introduction action acts as a swirl resistance inside the swirl flow, so that the swirl speed inside the swirl flow As a result, the turning speed of the swirling flow is attenuated faster.
Thus, considering the entire swirling flow, it is possible to efficiently remove the object to be removed, such as dust, without increasing the swirling movement distance, and to accelerate the attenuation of the swirling speed, so that Since the air guide cylinder and the surrounding cylinder are arranged in a state where the direction of the cylinder axis is set in a state along the horizontal direction, the horizontal distance can be reduced. There is an advantage that the structure can be made compact in the vertical direction and the entire apparatus can be downsized.

Further, according to the configuration of the first aspect of the present invention, an external take-out cylinder that guides the object to be removed, which has been dropped from the swirling flow by the dust separation unit, to the outside of the casing and falls by its own weight is provided to escape from the swirling flow of the swirling dust removing unit. Since the space for storing and collecting the removed objects can be configured separately from the swirling dust removal unit, containers created separately according to the use conditions separately from the dust removal device, commercially available containers, etc. An accommodating means having an arbitrary shape, structure, and size can be adopted, and the versatility of the dust removing device itself can be improved. In addition, there is an advantage that the entire apparatus can be further reduced in size by separating the space for storing and collecting the objects to be removed from the swirling dust removing unit.
Furthermore, the space for storing and recovering the object to be removed that has fallen from the swirling flow is configured to be separated from the swirling dust removing portion, and is formed in a part of the outer cylinder. Winding that causes the separation part to drop the object to be removed by its own weight without the swirling action of the swirling flow in the swirling dust removing section being transmitted, and sucking and discharging the gas phase fluid inside the wind guide cylinder to the lower side of the processing path Since the suction action by the means is not transmitted to the recovery space where the objects to be removed are accumulated, even if the objects to be removed accumulated in the recovery space are light dust, it will generate itself that rises to the swirling dust removal side. It can be avoided almost certainly. As a result, there is an advantage that the possibility that a fire or dust explosion may occur as much as possible due to, for example, welding sparks jumping in a state where a large amount of dust is present in the swirling dust removing portion. In addition, even if a fire or dust explosion occurs, it only occurs within the collection container, and there is an advantage that it is easy to avoid that the entire dust removal device is damaged by fire or dust explosion.

In addition, high-performance removal of dust and the like is performed in advance by the centrifugal separation action by the swirling dust removing unit, and a large amount of removed objects to be removed and collected is collected separately from the dust removing device via the external take-out cylinder. Since it can be collected in a container, etc., the most frequent maintenance only for collecting the object to be removed from the swirling dust removal unit becomes unnecessary. The removed material is collected in a small amount, and is collected by colliding with a metal collision plate and stalling by reversing the direction of reversal, diffusing with a lattice baffle, and contacting with a metal filter medium. However, if it is easy to be liquefied, it can also help to eliminate clogging, so that there is an advantage that the maintenance frequency can be reduced as a whole.

According to the second invention , the introduction duct of the gas phase fluid connected to the outer cylinder and the intake provided in the outer cylinder using the opening provided in the cylinder bottom of the outer cylinder. There is an advantage that it is easy to perform maintenance work such as cleaning the air guide tube portion inside the outer tube without removing it.

Embodiments of the present invention will be described below based on the drawings.
[Overall configuration of dust removal equipment]
As shown in FIGS. 1 to 3, the horizontal dust removing apparatus of the present invention sucks gas-phase fluid from the intake 10 into the casing 1 and discharges it from the discharge port 11. And a processing path R for removing dust in the middle of passing the gas-phase fluid.

The processing path R in the casing 1 includes a swirling dust removing unit A1 that swirls and flows the gas-phase fluid sucked and introduced from the intake 10 as a dust removing processing unit for performing dust removal processing, It collides with the gas phase fluid after being processed in the swirling dust removing unit A1, and the dust in the gas phase fluid is removed by temporarily inverting the gas phase fluid toward the upper side in the flow direction. The reversal processing unit A2 for processing the gas, the dust capturing unit A3 for diffusing the gas phase fluid over a wide range of the flow path on the lower side of the flow of the gas phase fluid and capturing the diffused dust, and these swirling dust removing units An exhaust part A4 is provided so as to apply a suction force to A1, the reversal processing part A2, and the dust trapping part A3.
Inside the casing 1, the flow direction in the processing path R is set substantially along the front-rear direction, and a swirling dust removing portion A <b> 1 is provided at the forefront portion of the flow direction, and the reversing processing portion is located at an intermediate position on the rear side. A2 is further provided with a dust trapping part A3 on the rear side and an exhaust part A4 at the rearmost part, which are arranged in layers in the front-rear direction. The components of the swirling dust removing unit A1 and the inversion processing unit A2 are made of metal, and the dust capturing unit A3 is also made of a metal filter.
Further, an external take-out cylinder 7 for discharging the object to be removed flowing down and descending from the processing path R to the outside of the processing path R is provided in the swirling dust removing portion A1 so as to lead the object to be removed out of the casing 1.

(Rotating dust removal unit)
As shown in FIGS. 1 to 5, the swirling dust removing portion A <b> 1 provided in the casing 1 includes an outer cylinder 3 that constitutes a part of the casing 1, and a wind guide cylinder 2 that is concentrically disposed therein. The gas-phase fluid sucked from the intake 10 provided on the outer peripheral side surface of the outer cylinder 3 with the cylinder axis extending along the horizontal direction is swirled in the casing 1.
That is, in the casing 1, the foremost part where the swirling dust removing part A <b> 1 is provided and the intermediate part where the reversal processing part A <b> 2 is provided are partitioned by the intermediate partition 12, and the front end of the intermediate partition 12 has a front end. The swirling dust removing portion A1 is provided which includes a wind guide cylinder 2 having an introduction port on the side and an outer cylinder 3 disposed at a predetermined interval outside the wind guide cylinder 2. ing.
As shown in FIGS. 2 and 4, the intake 10 formed in the outer cylinder 3 has an opening center P <b> 1 that substantially coincides with the outer peripheral surface near the root of the air guide cylinder 2. The center is set at a position deviated by a predetermined distance L from the center P2 of the wind guide tube 2 (see FIGS. 3 and 4).
By being configured in this way, the gas-phase fluid sucked from the intake 10 gradually narrows the turning radius while turning around the air guide cylinder 2 and causes a swirling flow similar to the cyclone dust removal structure. While performing, the gas is introduced into the inversion processing section A2 on the lower side in the gas-phase fluid flow direction through the gas-phase fluid introduction path r formed inside the air guide tube 2.

(Wind guide cylinder)
As shown in FIGS. 2 and 5, the air guide cylinder 2 includes a cylindrical guide action part 20 that guides the swirling of the gas-phase fluid together with the outer cylinder 3 in the processing path R, and one end side inside thereof. A gas-phase fluid introduction path r for introducing a gas-phase fluid from the inlet 22 and guiding it from a delivery port 28 provided on the other end side to a lower-side path.
As shown in FIG. 5, the cylindrical guide action part 20 is composed of a cylindrical first guide action part 21A and a tapered conical second guide action part 21B located closer to the introduction port 22 than this. The inlet 10 and the first inlet 10 are arranged so that the gas-phase fluid is taken in the tangential direction from the inlet 10 at a position substantially overlapping with the outer peripheral surface of the first guide action portion 21A in the cylinder axis direction. A relative position with respect to the guide action portion 21A is set.
A part of the gas-phase fluid inside the swirling flow is introduced into the gas-phase fluid introduction path r by the suction action from the inner side of the wind guide cylinder 2 around the circumference of the first guide action portion 21A. A short-circuiting vent 23 is formed.

That is, as shown in FIGS. 4 to 6, the short-circuiting ventilation portion 23 has the upper side in the moving direction of the swirling flow formed on the outer side of the air guide cylinder 2 facing inward in the radial direction and the lower side in outward direction. A large number of air holes 25 formed in a slit shape along the axial direction of the swirling flow are provided by a large number of plate-like bodies 24 arranged side by side. Each of the plate-like bodies 24 may have a flat plate shape, but as shown in FIG. 4, the plate-like body 24 is formed in an arc shape having a slight curvature in a cross-sectional view, and has a projecting curved surface facing outward. One is effective in suppressing the disturbance of the swirling flow because the entire guide acting surface in the short-circuiting vent 23 is close to a circular arc and can perform smoother guidance.
And this short-circuiting ventilation part 23 is not formed in the perimeter of the circumferential direction of the wind guide cylinder 2, but the site | part facing the inlet 10 for taking in the gaseous-phase fluid of a process target from the outside In the predetermined range, there is provided an initial guide wall portion 26 configured to first contact the gas phase fluid in which the non-peripheral peripheral wall portion of the wind guide cylinder 2 is taken in and start guiding in the turning direction. In addition, the short-circuiting vent 23 is formed in a range excluding the non-porous initial guide wall portion 26.
That is, in the example shown in FIG. 4, the range shown in the region I in the drawing corresponds to a portion facing the intake 10 for taking in the gas phase fluid to be processed from the outside, and this predetermined range (about ¼ round) ) Constitutes a non-porous first guiding action portion 21A, and a range (about 3/4 round) corresponding to the remaining regions II to IV is constituted in the short-circuiting ventilation portion 23.
The wind guide cylinder 2 configured as described above includes a flange-shaped portion 27 on the rear end side, and the flange-shaped portion 27 is provided at the rear end portion of the outer tube 3 described later. It connects in the state contacted to 33, and is fixed so that it may communicate with the opening formed in the intermediate partition 12 with the surrounding cylinder 3.

As described above, the short-circuit formed in the wind guide cylinder 2 by a large number of the plate-like bodies 24 provided in a state where the upper side in the moving direction of the swirl flow faces inward in the radial direction and the lower side faces outward. By forming the ventilation portion 23, the plate-like body 24 restricts the gas-phase fluid from entering the short-circuiting ventilation portion 23 due to the dynamic inertia of the swirling flow, and the air is introduced by the suction action from the inside of the wind guide cylinder 2. The gas phase fluid near the outer surface of the wind tube body 2 can be sucked out.
Further, the peripheral wall portion of the wind guide cylinder 2 at a portion facing the gas-phase fluid intake port 10 for supplying the gas-phase fluid to be processed from the outside to the swirling dust removing portion A1 is configured as a non-porous peripheral wall. Therefore, even if the gas-phase fluid introduced in the tangential direction from the gas-phase fluid intake port 10 directly collides with an untreated gas-phase fluid containing a large amount of dust on the facing portion of the wind guide cylinder 2, The gas phase fluid is not taken in, and the gas phase fluid is taken in by the suction action from the inside of the air guide tube 2 after the direction is changed in the turning direction.
Therefore, the gas-phase fluid introduced from the outside in the tangential direction can be guided well in the swirl direction, and the gas-phase fluid introduced from the outside in the tangential direction can be directly guided with dynamic inertia. A situation in which a large amount of dust enters the inside of the wind guide body 2 and enters the inside of the wind guide cylinder body 2 can be avoided.

(Outer cylinder)
An enclosing cylinder 3 is disposed at a predetermined interval so as to form a turning flow path between the air guide cylinder 2. The outer cylindrical body 3 is formed in a bottomed cylindrical shape having a conical surface having a slightly smaller diameter on the bottom side, which is the side facing the introduction port 22 of the air guide cylindrical body 2, and The intake 10 is partly formed integrally, and the taken-in gas phase fluid gradually turns to the introduction port 22 formed at one end side of the air guide tube 2 while turning inside the outer tube 3. Then, the air is sucked from the introduction port 22 of the air guide tube 2 and passes through the gas-phase fluid introduction path r formed therein, and then the lower flow path from the outlet 28 on the side opposite to the introduction port 22. The gas-phase fluid is derived from the gas.
The outer cylinder 3 is located outside the swirl flow, and has an arcuate circumferential guide surface 30 that guides the gas-phase fluid in the swirl direction together with the wind guide cylinder 2, and 2 in the circumferential direction. The dust separating part 31 for allowing the dust having a large mass contained in the outermost part of the swirling flow to jump out of the swirling flow and allowing the dust to escape from the swirling flow, and the object removed by the dust separating unit 31 And an external take-out cylinder 7 for discharging the removed material out of the processing path R.

The dust separation part 31 is constituted by a concave groove formed on the inner peripheral surface along the axial direction of the outer cylinder 3 positioned outside the swirling flow, and one end of the concave groove is formed on the outer circumferential surface. In the cylinder axis direction of the surrounding cylinder 3, it is located closer to the bottom side of the outer surrounding cylinder 3 than the center of the intake 10, that is, closer to the introduction port 22 side of the air guide cylinder 2, The end is near the bottom of the outer cylinder 3 and is continuous with the external take-out cylinder 7 extending downward, and the lower end side of the external take-out cylinder 7 is open.
As described above, the dust separation portion 31 is constituted by the concave groove in the cylindrical axis direction formed in a part of the outer circumferential cylindrical body 3 positioned outside the swirling flow, so that A structure for allowing a removal object such as dust or liquid having a large mass contained on the outer side to jump out of the swirling flow, and for removing the dust or liquid captured by the dust separating unit 31 from the swirling flow. The configuration for guiding to the lower dust collecting portion A5 can also serve as the concave groove.
Therefore, for example, as a configuration for allowing the dust or liquid having a large mass contained in the outermost side of the swirling flow to jump out of the swirling flow and allowing it to escape from the swirling flow, a large number of parts are included in the outer cylindrical body 3. Compared to a structure in which a large-diameter cylindrical body is fitted on the outside of the through-hole or net-like portion, and large-sized dust that has jumped out of the swirling flow is guided to the outside. Thus, the configuration can be simplified. Further, since the recessed groove is formed in the outer cylinder 3, a rib-like portion is formed in the outer cylinder 3, which is useful for improving the strength of the outer cylinder 3.
Even when the operation of the dust removing device is stopped, oil or the like adhering to the swirling dust removing portion A1 in the casing 1 flows down and is collected in the dust collecting portion A5 outside the apparatus through the external take-out cylinder 7.

An opening having a diameter larger than the outer diameter of the maximum diameter portion of the air guide cylinder 2 and a lid 32 that can be opened and closed are provided on the bottom side of the bottomed cylindrical casing 3. Yes. Therefore, the lid 32 can be opened and the internal air guide cylinder 2 can be taken out and maintained without removing the outer cylinder 3. Accordingly, it is possible to inspect and clean the inside of the outer cylinder 3 without requiring an operation such as removing the gas-phase fluid intake 10 provided on the outer peripheral portion of the outer cylinder 3.
The end of the outer cylinder 3 opposite to the bottom side is provided with a hook-like portion 33 facing the opening formed in the fixed intermediate partition 12 at the portion where the secondary processing portion of the casing 1 is housed. The intermediate partition 12 is bolted to the side surface.

(Dust removal operation in the swirling dust removal unit)
In the swirling dust removing portion A1 including the wind guide cylinder 2 and the outer cylinder 3, the dust and the like are removed from the swirling flow as shown in FIG.
In FIG. 7, the state of the change in the velocity of the gas phase fluid is shown in accordance with the position of the swirling dust removing portion A1 in the side view illustrated as FIG.

  FIG. 7B is a diagram showing the velocity distribution of the gas-phase fluid in the straight traveling state immediately after being introduced from the intake port 10, and according to this, the turning speed at the position of the opening center P <b> 1 of the intake port 10. Becomes the maximum speed, and the speed decreases due to the flow resistance as the outer edge positions Lu and Ld of the opening of the intake port 10 are reached, resulting in a distribution curve similar to the tendency of the so-called pipe flow speed distribution. Yes.

7 (d) at the right end of the figure, the air guide cylinder having the same outer shape as the air guide cylinder 2 of the present invention but having no short-circuiting vent 23 is shown in FIG. The velocity distribution state of the swirl | vortex flow of the gaseous-phase fluid in the case of the comparative example using the body 2 is shown.
The symbol a in FIG. 7 (d) indicates a velocity distribution curve near the outermost side of the swirling flow, and the symbol b indicates a velocity distribution curve near the innermost side of the swirling flow.
In this case, a certain amount of gas-phase fluid flows even near the position L1 opposite to the inlet 22 of the air guide cylinder 2, and the swirl speed gradually increases as the position approaches the position of the opening center P1 of the inlet 10. However, the maximum speed is reached near the opening center P1 or at a position slightly beyond the opening center P1.
Thereafter, as the position of the opening center P1 is passed and moved away from it, the turning speed gradually decreases while the turning diameter is gradually reduced, and the turning at the introduction port position L2 where the introduction port 22 of the air guide cylinder 2 is present. The gas-phase fluid at the innermost side of the flow is sucked out, and the remaining gas-phase fluid continues to swirl, and finally the state of zero velocity, that is, the swirling flow disappears. However, in this structure, the velocity of the gas-phase fluid at the innermost side of the swirling flow at the inlet position L2 is not sufficiently lowered as compared with the case of FIG. When the gas-phase fluid is forcibly sucked out from the lower side of the processing path R, a large amount of dust remains mixed in the gas-phase fluid and the dust removal function is deteriorated. Accordingly, it is necessary to wait for the swirling flow to converge until the velocity of the gas-phase fluid at the innermost side of the swirling flow at the inlet position L2 falls to the same level as described in FIG. As a result, a considerably long swivel movement distance is required to disappear, and as a result, a long distance in the horizontal direction is required as a swirl movement distance necessary until the swirl flow disappears.
In reality, there is no such type of horizontal dust remover with the cylinder axis in the horizontal direction, so how to remove the objects that fall off the swirling flow when such a structure is adopted. However, if the vertical cyclone device is considered to be the same as the horizontal structure, the distance until the swirling flow converges is very long and tends to be a large device with a long horizontal distance. There is. If the dust collecting portion A5 is forcibly provided at the level L3 corresponding to the distance range until the swirling flow converges, there may occur a situation in which the dust once lowered and accumulated again rises.

In contrast, in the present invention shown in FIG. 7C, the speed of the swirling flow near the position L1 opposite to the inlet 22 of the air guide cylinder 2 at the start time is as shown in FIG. The velocity distribution curve b on the innermost side of the swirling flow does not increase so much even if it reaches the vicinity of the opening center P1 of the intake port 10. This is because a part of gas-phase fluid is sucked out from the inside of the swirling flow, and this functions as a swirling resistance inside the swirling flow, so that the swirling speed of the gas-phase fluid on the innermost side does not tend to increase so much. It seems to be due to this.
In the outermost side where the influence of the suction derivation is relatively small, a considerable speed increase is observed in the vicinity of the opening center P1 of the intake port 10, but the structure does not include the short-circuit vent 23 in FIG. In comparison, the speed is slightly lower. This is thought to be due to the effect of the suction derivation as the swirl resistance inside the swirl flow on the swirl flow, even though it was relatively small, which also affected the swirl velocity outside the swirl flow. The tendency of the flow swirl velocity to decay is considerably faster than that of the structure shown in FIG. Therefore, the swirl movement distance of the swirl flow may be relatively short, and the length in the horizontal direction until the swirl flow converges can be shortened. Therefore, the apparatus can be miniaturized.

  In the processing path R on the lower side in the gas-phase fluid flow direction than the swirling dust removing unit A1, a secondary processing unit for removing the object to be removed remaining in the gas-phase fluid sent from the swirling dust removing unit A1. I have. This secondary processing unit includes an inversion processing unit A2 and a dust trapping unit A3.

[Inversion processing section]
As shown in FIG. 8, the inversion processing unit A2 crosses the flow of the gas phase fluid sent out from the swirling dust removing unit A1, and changes the flow direction of the gas phase fluid from the central portion to the radial direction, and then the outer peripheral portion. The metal collision plate 8 having a concave curved surface composed of a bowl-shaped secondary curved surface that is guided so as to be reversed in the forward direction of the flow is provided.
Among the fine objects to be removed that remain in the gas-phase fluid that is reversed by being guided by the concave curved surface 80 of the collision plate 8, the collision plate 8 has a relatively large mass of dust and the collision plate 8. The distance between the outer peripheral edge 81 of the indented curved surface 80 and the intermediate partition 12 is separated by an interval that allows fine dust particles to join together and collide with each other to collide with the intermediate partition 12. It is set and arranged.

(Dust trap)
The gas phase fluid that has passed through the swirling dust removing portion A1 moves to the rear in the casing 1 that is the lower side in the flow direction through the reversal processing portion A2.
A metal lattice louver 4 for diffusing the gas-phase fluid in the casing 1 over a wide range of the flow path and making the remaining dust contained in the gas-phase fluid easily contact the filter, There is provided a dust trapping part A3 made of a metal filter 5 for further removal treatment in contact with the dust in the phase fluid.

As shown in FIGS. 9 (a) and 9 (b), the metal lattice louver 4 collides with the sucked gas phase fluid and changes the flow direction of the gas phase fluid to the front and rear or the left and right in the horizontal direction. In order to change, the collision surface is constituted by a metal armor-like plate material 41 having a large number of slits called armor plates.
In this armor plate, a plurality of metal armor-like plate members 41 (three in the illustrated example) provided with a large number of slits through which the flow direction of the gas-phase fluid is changed are sequentially 90 degrees from the front in the flow direction. While changing the direction, it is configured by a combination with the outer frame 40 that supports the plurality of yoro-like plate members 41 as a group.

As shown in FIG. 9, each of these armor-like plate members 41 is formed by stamping and molding a plate surface of a metal plate member in a predetermined direction with a predetermined width, and a plurality of slit-like vent holes 42 over the entire plate surface. A launching projecting piece 43 serving as an inclined collision surface is formed.
Among these armor-like plate members 41, the foremost plate-like member 41 located on the foremost side is formed integrally with the outer frame 40. The next-stage armor-like plate material 41 is formed in a state in which the longitudinal direction of the vent hole 42 is orthogonal to the direction of the vent hole 42 of the front-most armor-like plate material 41, and further, The vent holes 42 of the armor-like plate material 41 are formed so as to be orthogonal to the vent holes 42 of the immediately preceding yoro-like plate material 41.
The collision surface of the armor-like plate material 41 is composed of a plate surface 41a of the armor-like plate material 41 and an obliquely downward surface 43a provided in the projecting protrusion 43 that is ejected to form a slit of the armor-like plate material 41. Yes.
The suction gas-phase fluid collides with each of the surfaces 41a and 43a, and even if sparks such as welding spatter that floats and is carried in the fluid remain at this time, they collide with the surfaces 41a and 43a. The moving speed in the flow direction is reduced, and the vehicle is stalled and dropped, or moved while changing the flow direction.

As shown in FIGS. 1, 3, 10, and 11, in the casing 1, dust in the gas phase fluid is placed at an upper position on the lower side in the flow direction of the gas phase fluid that has passed through the inversion processing unit A <b> 2. Furthermore, the metal filter 5 for the removal process is provided.
As shown in FIGS. 10 and 11, the metal filter 5 installed in the gas phase fluid suction air passage in the dust trapping part A3 is a spiral metal made of a thin string material such as stainless steel or brass. The filter unit body 50 is formed by winding a wire in a spiral shape into a cylindrical shape, and a filter frame body 51 having a rectangular recess 52 in a plan view for accommodating the filter unit body 50 individually.
Of the concave bottom surfaces of the filter frame body 51 facing one end side in the axial direction of the cylindrical filter unit body 50 (the direction represented by the line segment P4 in FIG. 10), the rectangular concave portion 52 and the cylindrical shape are formed. A concave bottom surface 52a facing the void portion s formed between the filter unit body 50 and the periphery thereof is formed without holes, and a gas phase fluid passage hole 53 is formed in the concave bottom surface 52b except for the nonporous void portions s. It is.
Thus, a gap portion formed between the filter unit body 50 formed in a cylindrical shape by spirally winding a spiral metal wire and the periphery of the columnar filter unit body 50 accommodated in the concave portion of the filter frame body 51. By using s as a non-porous portion and a filter frame 51 in which a gas-phase fluid passage hole 53 is formed on the bottom surface of a recess in a range excluding the void portion s, the heat resistance, corrosion resistance, and regeneration function are excellent. While using a metal wire, a functionally excellent filter structure can be constructed, and the number of filter replacements can be reduced or extremely reduced compared to the case of using an adsorption-type cloth-like filter.
As shown in FIG. 1, the metal filter 5 is configured to be removed from the opening together with the filter frame 51 by opening the lid 1 </ b> A formed on the side portion of the casing 1.

[Exhaust section]
An exhaust part A4 for discharging the processed gas-phase fluid is provided at a position corresponding to the downstream side of the flow path (the rear side in the casing 1) from the dust collection part A3.
The exhaust part A4 is constituted by a wind generating means 6 including a suction fan 60 that is driven to rotate around a horizontal axis, and an electric motor 61 for driving the suction fan 60.
The suction fan 60 is provided in a wind chamber 64 provided with an air guide 62 for collecting a gas-phase fluid toward the center of the suction fan 60 at the entrance, and an outlet 63 facing the outer periphery of the suction fan 60. The annular exhaust chamber 65 connected to the outlet 63 is disposed so as to surround the electric motor 61, and the exhaust chamber 11 is provided with the discharge port 11.
As described above, the exhaust port 11 is not directly provided in the wind chamber 64, but the exhaust chamber 65 is temporarily connected to the exhaust port 11 after exiting the outlet 63 and entering the exhaust chamber 65. 60 acts as a silencer.

[External tube]
As shown in FIGS. 1 and 2, the external take-out cylinder 7 connected to the lower end side of the dust separation portion 31 formed in the outer cylinder 3 is continuously provided in a concave groove portion constituting the dust separation portion 31. It is comprised by the cylindrical body, and a flexible extended cylinder part etc. are connected to this external taking-out cylinder 7 detachably, and a to-be-removed object is stored in external dust collection part A5.
An arbitrary container or the like can be used as the dust collection part A5, and it is sufficient that the size of the dust collection unit A5 is appropriately sized according to the amount of objects to be removed. There is no need to prepare.
Further, in the dust collection part A5, it is preferable that the inside of the dust collection container is opened to the atmosphere by appropriately providing an air venting means so that the staying gas in the dust collection container can be discharged to the outside as soon as possible. .

[Auxiliary external take-out part]
In addition to the external take-out cylinder 7 connected to the dust separation part 31 formed in the outer cylinder 3, an auxiliary external take-out part 75 is also provided below the secondary processing part.
The auxiliary external take-out section 75 includes a common sludge storage box 76 for the chamber in which the reversal processing section A2 is installed, the chamber in which the dust trapping section A3 is installed, and the wind generating chamber 64, and a lower passage therethrough. The drain pipe 77 for collecting the liquid leaking from the liquid hole is configured. The liquid discharged from the drain pipe 77 may be collected in an arbitrary collection container, and the sludge accumulated in the sludge storage box 76 is The sludge storage box 76 can be pulled out from the front side of the casing 1 and taken out. Although the amount of sludge accumulated in the sludge storage box 76 depends on the type of the gas phase fluid, most of the sludge is removed from the gas phase fluid after being removed by the swirling dust removing unit A1, and therefore, a very small amount. The maintenance frequency is very low.
Therefore, if maintenance work such as cleaning of the metal filter is necessary, the secondary processing section is opened by opening the opening / closing lid 1A that closes the opening formed on the side of the casing 1 to make the metal filter. Although the filter can be cleaned, there is little need for it and the maintenance frequency is very low.

[Other Embodiments]
[1] As shown in FIGS. 12 to 13, the orientation of the intake 10 provided in the outer cylinder 3 may be changed.
In this structure, the outer cylinder 3 includes a first cylinder part 3A fixed to the casing 1 that houses the secondary processing part, a second cylinder part 3B that is integrally provided with an intake port 10, and an external extraction cylinder 7. The second cylindrical portion 3B is configured in combination with the provided third cylindrical portion 3C, and the second cylindrical portion 3B positioned in the middle is around the cylindrical axis with respect to the first cylindrical portion 3A and the third cylindrical portion 3C positioned in front and rear The direction of the intake 10 can be changed by relative rotation.
That is, as shown in FIGS. 13 (a) and 13 (b), each of the first cylindrical portion 3A and the third cylindrical portion 3C is integrally provided with an annular metal fitting 34 over the entire circumference thereof. A plurality of spring steels at a plurality of locations in the circumferential direction (about 4 to 6 locations) with the intermediate second tube portion 3B interposed between the first tube portion 3A and the third tube portion 3C. These three members can be configured as a series of enclosing cylindrical bodies 3 by being connected in a state of being elastically urged by using a fixing bracket 35 made of metal.
And among the three cylinder parts 3A, 3B, 3C constituting the outer cylinder 3, the intermediate second cylinder part 3B is provided with one intake port 10 on the outer peripheral portion thereof. This portion is formed in a cylindrical shape, and seal members 36 are attached to both ends.
On the bottom side of each inner peripheral portion of the first cylindrical portion 3A and the third cylindrical portion 3C, there is an opening communicating with the concave groove 31 formed integrally with the external take-out cylinder 7 provided in the third cylindrical portion 3C. Through this opening, the concave groove 31 is open and connected to the internal spaces of the first and third cylindrical portions 3A and 3C excluding the second cylindrical portion 3B.
As a result, the second cylindrical portion 3B positioned in the middle is rotated relative to the first cylindrical portion 3A and the third cylindrical portion 3C positioned in the front and rear directions around the cylindrical axis, and the orientation of the intake 10 Can be changed.

[2] As shown in FIG. 14, the inlet 10 provided in the outer cylinder 3 is set so that the introduction direction of the gas phase fluid is upward, rightward, and leftward around the cylinder axis. By providing a cover 10A that closes the intake ports other than the one intake port connected to the gas duct fluid introduction duct among the respective intake ports 10, An effective intake 10 direction may be selected.
Of course, the direction in which the intake 10 is provided is not limited to the above three directions, and various directions can be freely selected, and the number is not limited to three but may be two or four. You may provide the thing of a number.

[3] The inflow direction of the suction fluid introduced between the outer cylinder 3 and the wind guide cylinder 2 is such that the opening center P1 line of the intake port 10 coincides with a tangent to the outer peripheral edge of the wind guide cylinder 2. As described above, the present invention is not limited to the structure that is set to be deviated by a predetermined distance L from the center P2 of the wind guide cylindrical body 2, as long as a swirl flow is generated between the outer cylindrical body 3 and the wind guide cylindrical body 2 without any problem. For example, it may be set to be deviated from the predetermined distance L to some extent, and when the flow direction of the intake fluid to be introduced is appropriately controlled using a guide plate or the like, the position and direction of the intake port 10 are determined. The predetermined distance L and the direction may be arbitrarily determined without being trapped.

[4] As shown in FIG. 15, a deodorization box 9 for deodorizing the exhaust gas may be detachably provided at the discharge port 11. As a means for attaching the deodorization box 9 to the discharge port 11, it is possible to forcibly press-fit using the elastic deformation of the mounting cylinder portion, or a multiple spiral screw such as a double helix or a triple helix. By using it, you may comprise so that it can be screwed and fixed easily by rotation operation of less than 360 degrees.

[5] The air guide cylinder 2 is not limited to the structure of the combination of the cylindrical first guide action part 21A and the tapered conical second guide action part 21B as shown in the above-described embodiment. Instead, the whole may be formed in a tapered cone shape.
In addition, the range in the cylinder axis direction in which the short-circuiting ventilation portion 23 is provided is not limited to the first guide operation portion 21A, but may be provided in the second guide operation portion 21B.
The ratio in the circumferential direction between the circumferential range in which the short-circuiting vent 23 is provided and the initial guide wall portion 26 provided in the range facing the intake 10 is the same as that of the intake 10 as shown in FIG. About 1/4 of the opposing range is set as the initial guide wall portion 26, and the rest is not limited to the short-circuit vent 23, but is set to a range smaller than this, and the short-circuit vent 23 is provided. Can be set.
Further, if the swirling action is given to the gas-phase fluid before the gas-phase fluid is supplied between the air-guiding cylinder 2 and the surrounding cylinder 3, the short-circuit vent 23 is connected to the air-guiding cylinder. It may be provided all around the body 2.

[6] The specific configuration of the short-circuiting ventilation section 23 is not limited to the structure using the plate-like body 24 and the slit-like ventilation holes 25 as shown in the embodiment. Alternatively, the short-circuiting ventilation portion 23 may be formed of a net or the like.

[7] The dust separation portion 31 provided in the outer cylinder 3 is not limited to one provided in the circumferential direction as shown in the above-described embodiment, and may be provided in two places, or three or more places. It may be provided.
Moreover, the shape is not limited to that formed by the concave groove, and a structure through which dust can pass such as a slit, a small opening, and a net is provided on the inner surface side of the outer cylindrical body 3, and the passing dust is A means for collecting in the lower external take-out cylinder 7 may be provided.

[8] The horizontal direction along which the cylinder axis of the swirling dust removing unit A1 is not intended to be an absolute horizontal direction, but includes a slight inclination, and the cylinder axis of the swirling dust removing unit A1 is vertical. Compared to a so-called vertical device that extends along the direction, the cylindrical axis may be more horizontal.

Left side view showing the entire dust removal equipment Front view showing the entire dust removal equipment Sectional view in plan view showing the entire dust removal device Horizontal sectional view showing swirling dust removal unit Vertical sectional view showing the swirling dust removal unit The perspective view which shows a wind guide cylinder part Explanatory drawing showing the velocity distribution state of the swirling flow in the swirling dust removing section Sectional view showing the reversal processing section Shows a metal louver filter, (a) is a partially cutaway front view, (b) is a cross-sectional view Perspective view showing a metal filter Plan view showing the filter frame of a metal filter Sectional view in left immediate view showing another embodiment The connection structure of the surrounding cylinder body in other embodiment is shown, (A) is sectional drawing, (B) is a top view which shows metal fittings Front view showing another embodiment Side view showing another embodiment of the exhaust structure portion Explanatory drawing showing dimensional ratio of cyclone for classification

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 2 Air guide cylinder 3 Outer cylinder 4 Metal louver 5 Metal filter 6 Winding means 7 External take-out cylinder 8 Collision plate 10 Intake port 11 Outlet 12 Intermediate partition 20 Cylindrical guide action part 22 Inlet port 30 Circumferential guide surface 31 Dust separation part A1 Swivel dust removal part A2 Inversion processing part A3 Dust trapping part A4 Exhaust part A5 Dust collection part R Processing path

Claims (2)

The casing is provided with a treatment path for removing the object to be removed from the gas-phase fluid sucked from the intake port and discharging it from the discharge port to the outside. The gas phase sucked and introduced into the process route from the intake port A swirling dust removing unit that swirls and flows the fluid in the casing is provided.
This swirling dust removing part is composed of an inner wind guide cylinder and an outer envelope cylinder that set the direction of the cylinder axis along the horizontal direction,
A gas-phase fluid inlet is provided on one end side in the horizontal direction of the wind guide cylinder and a delivery port is provided on the other end. The outer cylinder is formed in a bottomed cylinder, and the cylinder bottom is Opposed to the introduction port of the wind guide cylinder, and disposed in a state with a predetermined interval between the introduction port and the outer peripheral side of the wind guide cylinder,
The introduction direction of the gas phase fluid to be processed is set so that the swirling flow of the gas phase fluid is generated in an annular swirling flow path formed between the inner wind guide cylinder and the outer envelope cylinder. It is set in a direction along the tangent line of the wind guide cylinder, and includes a wind generating means for sucking and discharging the gas-phase fluid inside the wind guide cylinder from the delivery port opposite to the inlet to the lower side of the processing path,
In the swirling dust removing section, a suction action from the inside of the baffle cylinder is applied to the peripheral wall portion near the feed outlet located on the opposite side of the introduction port of the baffle cylinder located inside the swirling flow path, A short-circuiting vent is formed for sucking a part of the gas-phase fluid during swirling at a position closer to the processing system than the introduction port, and one of the surrounding cylinders located outside the swirling flow path. Forming a dust separation part that allows the removal object to be removed from the swirling flow to the outer side of the swirling flow to escape from the swirling flow,
Set the dust separator external extraction tube to free-fall to-be-removed substance escaped guided outside the casing from the swirling flow of
A secondary processing unit for removing the object to be removed remaining in the gas-phase fluid sent from the swirling dust removing unit in the processing system path on the lower side in the gas-phase fluid flow direction than the swirling dust removing unit, This secondary processing unit is composed of an inversion processing unit and a dust trapping unit,
The inversion processing unit crosses the flow of the gas phase fluid sent out from the swirling dust removing unit and directs the flow direction of the gas phase fluid from the central part to the radial direction, and then reverses the flow in the forward direction at the outer peripheral part. A collision plate having a concave curved surface composed of a bowl-shaped quadric surface that guides the
The dust trapping unit includes a lattice-like louver in which a guide surface of a ventilation channel is formed so as to diffuse the gas-phase fluid after being reversed by the collision plate in the vertical direction and the horizontal direction, and the diffused gas-phase A filter medium layer configured to be filled with a spiral metal wire so as to come into contact with a fluid;
A horizontal dust removing apparatus in which each of the collision plate, the lattice-like louver, and the filter medium layer is made of a metal material . The outer cylinder of the swirling dust removing unit includes an opening having a diameter larger than the outer diameter of the air guide cylinder at the bottom of the cylinder, and a lid that can be opened and closed, and a gas phase is formed on the outer periphery of the outer cylinder. The horizontal dust removing apparatus according to claim 1, further comprising a fluid intake port.

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