KR20170104961A - Dual cyclone type processing apparatus of suspened solids - Google Patents

Abstract

There is provided an apparatus for treating a suspended cyclic suspended solids material, comprising an inlet for introducing influent water, an outlet for discharging the treated water in a state where the suspended material contained in the influent water is separated, and an inflow water An outer tube having an outlet for discharging the suspended substance contained therein and a plurality of primary acceleration separation holes for generating a first downward vortex along the side, and an inflow water from the inflow port rotating around the outer tube at the upper portion of the outer tube A centrifugal force acceleration chamber communicating with the primary acceleration separation holes so that at least a part of the inflow water rotating in the space can be introduced into the outer cylinder through the plurality of primary acceleration separation holes, A suspended matter collecting part connected to the discharge port and for introducing the suspended material separated from the inflow water, An intermediate passage which is spaced from the suspended matter collecting portion and is spaced apart from the intermediate container inside the intermediate passage and the lower end is located in the suspended matter collecting portion and a lower portion of the lower end of the intermediate container, A first rising vortex is generated by switching the flow of the first falling vortex to a space between the intermediate passing inner tubes so as to generate a first rising vortex, And an upper plate through which the outlet extends to cover the upper portion of the outer tube, the intermediate tube and the inner tube and to convert the flow of the first rising vortex to generate the second falling vortex.

Description

DUAL CYCLONE TYPE PROCESSING APPARATUS OF SUSPENED SOLIDS [0002]

The present invention relates to an apparatus for treating a dual cyclone suspension material, and more particularly, to a dual cyclone suspended material treatment apparatus capable of efficiently removing minute suspended substances in water.

Cyclone is widely used in various fields such as gas purification, combustion, spraying, powder sorting, and also for high / liquid separation. The basic principle of separation of cyclones is centrifugal precipitation. That is, suspended particles are affected by the centrifugal acceleration that causes them to separate from the fluid. Unlike a centrifuge, the cyclone does not have any moving parts and the necessary revolving motion is achieved by the force of the fluid itself. Cyclones specially designed for liquid handling in cyclones are referred to as hydraulic cyclones or hydrocyclones. Hydrocyclone maintains low operation. Due to its important advantages such as maintenance cost and comparatively simple device characteristics, it recovers particulate solids such as separation, concentration and purification in fields of mine, water and sewage treatment, industrial water, wastewater treatment, .

The hydrocyclone is basically a structure in which the cylinder is connected to the conical part. The suspended particles in the fluid flow in the tangential direction through the inlet located at the top of the cylinder, and the particles with a large specific gravity are guided to the lower part of the cyclone by centrifugal force, Particulate and treated water having a small specific gravity and discharged are discharged by the upper treatment water outlet pipe. The hydrocyclone generates a swirl inside the cyclone due to the tangential flow of the fluid. Three swirl velocities, radial velocity, axial velocity, and tangential velocity, appear in the cyclone inside the cyclone, 1 will be described below.

First, the radial velocity appears as a centrifugal force on the outer wall of the hydrocyclone due to tangential influx and forms a downward flow to the bottom of the hydrocyclone. Particles having a larger specific gravity travel on the outer wall of the hydrocyclone due to the radial velocity and move downward and are discharged to the lower outlet. The radial velocity decreases with the reduction of the radius of the cone under the hydrocyclone. The radial velocity is smaller than the tangential velocity and the axial velocity.

Next, the axial velocity is increased in the vertical direction from the lower part of the conical part of the hydrocyclone cylinder to the upper discharge pipe due to the partial discharge of the inlet suspension at the lower outlet and the downward flow due to the radial velocity, Gravity has little effect.

Finally, the tangential velocity decreases as the radius of the cylinder increases and the radius of the outlet tube increases as the radius of the cylinder increases, at the speed of the swirl flow generated by rotating in the tangential direction about the axis of the ascending flow from the lower portion of the hydrocyclone cylinder portion to the upper discharge pipe . It is constant regardless of the vertical position other than the inflow tangential velocity at the tangential inflow of fluid.

In the case of a centrifugal sand seperator, centrifugal force is increased when the suspended particles in the fluid flowing into the centrifugal force upper centrifugal acceleration chamber composed of the centrifugal acceleration chamber, the accelerator separator, The collected water is collected in the bottom of the centrifuge along the column wall, and the treated water and small gravity particles are discharged through the outflow pipe installed on the upper side of the accelerating separator, and the particles having a large specific gravity separated by the centrifugal separator are separated And discharged through a discharge pipe. Separate distribution pipe for distributing the fluid outside the accelerator separator from the center of the accelerator separator is provided to prevent particle leakage due to an increase in the axial velocity in the accelerator separator and to generate a stable upward flow in the center of the accelerator separator.

In the case of hydrocyclones, increasing the diameter of the cylinder and cone to increase the throughput can result in lower particle removal efficiency due to reduced inlet tangential velocity and tangential velocity, thus increasing throughput through parallel and series connections, However, due to the installation of multiple hydrocyclones, it is necessary to increase the installation volume and increase the pump power.

In the case of a centrifugal separator, centrifugal force is used to increase the centrifugal force to increase the particle removal efficiency and enable a large-capacity treatment. However, since a distribution tube is installed to prevent particle leakage due to an increase in the axial velocity, the structure becomes complicated and there is a waste of power If the particle specific gravity of the influent fluid is low, the suspended particles may be discharged through the distribution pipe.

Therefore, in order to overcome the disadvantages of each hydrocyclone and centrifuge, it is necessary to improve the efficiency of operation and maintenance by introducing a suspension material treatment device in the improved fluid, There is a need to develop a technology that can meet economic efficiency.

Korean Patent Publication No. 10-2007-0067943 (Jun. 29, 2007) Korean Patent No. 10-1193974 (Oct. 17, 2012) Korean Patent Laid-Open No. 10-2007-0034230 (Apr. Korean Patent No. 10-0788298 (Dec. 17, 2007)

Accordingly, a problem to be solved by the present invention is to provide a method for recovering fine solids such as separation, enrichment, purification and the like in fields of mine, water and sewage treatment, industrial water, wastewater treatment, And an object of the present invention is to provide an improved apparatus for treating a suspended cyclic suspended material which enables easy maintenance and economical operation.

Another object of the present invention is to provide a device for treating a suspended cyclic suspended solids substance capable of removing suspended solids or fine suspended solids in water.

According to one aspect of the present invention, there is provided an apparatus for treating suspended solids contained in an influent, comprising: an inlet for introducing influent water; An outlet for discharging suspended solids included in the inflow water flowing through the inlet, and a plurality of primary acceleration separation holes for generating a first descending vortex along the side surface are formed , The outer cylinder, and the inflow water from the inlet provide a space for rotating around the outer cylinder at the upper portion of the outer cylinder, and at least a part of the inflow water rotating in the space is introduced into the outer cylinder through the plurality of primary acceleration separation holes A centrifugal force acceleration chamber communicating with the primary acceleration separation generating holes so that the primary acceleration separation generating holes can be introduced; A suspended substance collecting part for introducing the substance into the intermediate tube, a separating part for separating the suspended substance from the suspended substance collecting part, A first lowering vortex is generated by switching the flow of the first lowering vortex to a space between the middle passage inner lowering portion located at the upper portion of the suspended matter collecting portion and the lower portion of the lower end of the intermediate passage located in the collecting portion, A blocking plate for preventing re-floating of the suspended matter introduced into the suspended matter collecting portion, and a blocking plate for blocking the flow of the first rising vortex, passing through the outlet, covering the upper portion of the outer tube, So as to generate a magnetic field.

According to one embodiment, the upper end of the inner cylinder is spaced apart from the upper plate, and the primary upward vortex flows between the upper end of the inner cylinder and the upper plate.

According to one embodiment, a rising vortex inlet is formed on the side surface of the inner tube for introducing the first rising vortex into the inner barrel.

According to an embodiment, a plurality of secondary acceleration separation holes for generating the secondary downward vortex are formed by introducing the primary upward vortex to the side of the inner cylinder.

According to one embodiment, the inner tube is formed to have a cone-like structure in an under-light state so that separation and deposition of the fine suspended material can be smoothly performed.

The present invention relates to a method and apparatus for efficiently removing suspended solids or fine suspended solids in water in the recovery of fine solids such as separation, concentration, and purification in the fields of mine, water and sewage treatment, industrial water, wastewater treatment, By providing the apparatus for treating a suspended cyclic suspended material, it is possible to simplify the installation, operation and maintenance of the apparatus, and provide an economical operation.

Fig. 1 is a view for explaining the basic principle of a cyclone, showing three flow rates of a radial velocity, an axial velocity and a tangential velocity inside a cyclone,
2 is a view for explaining the basic principle of a centrifugal separator,
3 is a cross-sectional view for explaining a feature of the apparatus for treating a suspended cyclic suspension material according to an embodiment of the present invention,
FIG. 4 is a plan view of the apparatus for treating a suspended cyclic suspension material of FIG. 3, with the upper plate covering the upper part removed;
5 is a cross-sectional view for explaining a feature of the apparatus for treating a suspended cyclic suspension material according to another embodiment of the present invention,
FIG. 6 is a plan view of the apparatus for treating a suspended cyclic suspension material of FIG. 5, with the upper plate covering the upper part removed;
7 is a cross-sectional view for explaining a feature of a dual cyclone suspension material processing apparatus according to another embodiment of the present invention,
FIG. 8 is a plan view of the apparatus for treating a suspended cyclic suspension material of FIG. 7 with the top plate covering the top removed. FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The accompanying drawings and embodiments are to be construed in order to facilitate the understanding of the present invention without departing from the scope of the present invention.

In the present specification, the term 'suspended material' refers to various substances included in water and clouding water, such as mud particles, various suspended materials, and the like.

In this specification, a dual cyclone system is used to treat water, that is, suspended substances contained in water. Basically, the key technologies employed are briefly described as follows. The centrifugal separator is a centrifugal separator that uses a specific gravity difference and a centrifugal force. The centrifugal separator is a cyclone type solid-liquid separator generally called a hydrocyclone and has the same basic principle as that of a hydrocyclone, A device for increasing the centrifugal force of water is added and centrifugal separator structures are basically employed to prevent re-emergence of suspended matter due to centrifugal force. In the former case, when the volume is increased to increase the processing capacity, since the processing efficiency is decreased and the size of the separable particle is increased, it is necessary to increase the installation space and increase the power. And in the latter case. The capacity can be increased by the single treatment, but the structure is complicated and there is a possibility of waste of power. In addition, if there is an abnormality in the operating conditions, there is a possibility that the outflow of suspended matter may increase. Therefore, in order to compensate for these drawbacks and combine the merits of the two schemes, the present invention employs a dual cyclone scheme.

FIG. 3 is a cross-sectional view for explaining a feature of a dual cyclone suspension material processing apparatus according to an embodiment of the present invention, and FIG. 4 is a plan view of a dual cyclone suspended- FIG. 5 is a cross-sectional view for explaining a feature of a dual cyclone suspension material processing apparatus according to another embodiment of the present invention, FIG. 6 is a cross-sectional view of a dual cyclone suspended- 7 is a cross-sectional view for explaining a feature of the apparatus for treating a suspended cyclic suspension material according to another embodiment of the present invention, and FIG. 8 is a cross- Fig.

3 and 4, the apparatus for treating suspended solids contained in influent water according to the present invention includes an outer cylinder 30, an upper plate 100, an intermediate cylinder 40, An inner cylinder 50, and a shut-off plate 70. The outer cylinder 30, the intermediate cylinder 40, and the inner cylinder 50 of the outer cylinder are formed in a cylindrical shape so that the inflow water can be smoothly rotated. Further, a centrifugal force acceleration chamber 25 is formed between the inlet 10 and the outer cylinder 30. Reference numeral 20 denotes a portion for forming the centrifugal force acceleration chamber 25 so that the inflow water can rotate around the upper portion of the outer cylinder 30.

Specifically, the apparatus for treating a double cyclone suspension material includes an inlet 10 for introducing inflow water IN1, an outlet 10 for discharging treated water OUT2 from which suspended matter contained in inflow water IN is removed, 60, a discharge port 90 for discharging the suspended substance OUT2 contained in the inflow water IN, a suspended substance collecting unit 80 connected to the discharge port 90 for introducing the suspended substance separated from the inflow water IN ). An inflow pump (not shown) is connected to the inlet 10 side. The suspended matter in the suspended matter collecting unit 80 may be discharged through the outlet 90 at an appropriate time in consideration of the accumulation amount.

The centrifugal force acceleration chamber 25 provides a space such that the inflow water IN from the inlet 10 can rotate around the outer cylinder at the top of the outer cylinder 30 and at least some of the inflowing water All of the primary acceleration separation holes 32 are communicated with each other so as to be introduced into the outer cylinder 30 through the primary acceleration separation holes 32.

A plurality of primary acceleration separation holes 32 are formed in the outer cylinder 30 for generating first downward vortices along the side surfaces. The height at which the primary acceleration separation holes 32 are formed is preferably equal to or lower than the height at which the influent IN is introduced, and is communicated with the centrifugal acceleration chamber 25 as mentioned above. The primary acceleration separation holes 32 allow the inflow water flowing through the inlet 10 and rotating in the centrifugal acceleration chamber 25 to pass through the primary acceleration separation holes 32 to generate vortices smoothly, . When the inflow water passes through the primary acceleration separation holes 32, the water flows down at a high speed in a space between the outer cylinder 30 and the intermediate cylinder 40.

The upper plate 100 is a component that covers the outer cylinder 30, the intermediate cylinder 40 and the upper portion of the inner cylinder 50 so that water does not flow out in the centrifugal separation process, To the second falling vortex (the flow of the converted water is indicated by arrow F9). At the center of the upper plate 100, an outlet 60 penetrates to allow the treated water OUT2 to flow out.

The middle cylinder 40 is spaced apart from the outer cylinder in the outer cylinder and the lower end of the middle cylinder 40 is spaced apart from the suspended material collecting portion 80. The relationship between the lower end of the intermediate cylinder 40 and the suspended matter collecting portion 80 will be described below in conjunction with the blocking plate 70. The flow of the first downward vortex (indicated by the arrows F1, F2, and F3) proceeds between the intermediate cylinder 40 and the outer cylinder 30, as described above.

The inner cylinder 50 is spaced from the intermediate cylinder 40 inside the intermediate cylinder 40 and the lower end of the inner cylinder 50 is formed to be located in the suspended material collecting portion 80. The centrifugal force of the secondary downward vortices (indicated by the arrows F10, F11, F12, and F13 in this order) is maintained as it is. The suspended particles are relatively fine as compared with the suspended matter separated at the time of the first rising vortex transition (indicated by arrow F4) in the falling descending vortex, so that the suspended particles are not properly separated and discharged together with the treated water OUT2, . Therefore, it is preferable that the inner tube 50 is formed in a conical shape having a smaller diameter (lower limit of the upper limit) from the upper portion to the lower portion. Since the centrifugal force is proportional to the diameter, if the diameter is small, the centrifugal force of the vortex becomes weak, which may be advantageous in separating the fine suspended material from the water. Also, as shown in the figure, the same diameter may be formed up to a certain portion, and the cone-shaped structure may be formed to have the same diameter.

The blocking plate 70 is positioned below the lower end of the intermediate cylinder 40 and between the lower end of the intermediate cylinder 40 and the suspended matter collecting portion 80 at the upper portion of the suspended matter collecting portion 80, The space between the cylinder 40 and the inner cylinder 50 converts the flow of the first descending vortex into the flow of the first rising vortex. Not only that, the blocking plate 70 also influences the centrifugal force of the first downward vortex to the lower portion, that is, the suspended matter collecting portion 80, resulting in the re-emergence of the suspended matter flowing into the suspended matter collecting portion 80 Therefore, it serves to reduce the centrifugal force to prevent this.

The relationship between the position of the space between the blocking plate 70 and the intermediate cylinder 40 and the inner cylinder 50 and the flow velocity will be described below. The interval between the outer cylinder 30 and the intermediate cylinder 40 is always constant in the entire section The velocity between the middle cylinder 40 and the inner cylinder 50 is the widest at the starting point of the first rising vortex because the space between the middle cylinder 40 and the inner cylinder 50 is the widest. At this point where the flow velocity is slowed, a large number of partial vortices are generated, thereby causing the suspended matter in the suspended matter collecting section to be re-lifted. Therefore, the blocking plate 70 is arranged in the middle cylinder 40 and the inner cylinder 50).

For example, as shown in Figs. 1, 3 and 5, the outer tube 30, the intermediate cylinder 40 and the outlet 60 may be integrally formed with the top plate 100, . Also, the blocking plate 70 and the inner tube 50 may be integrally formed or may be separately manufactured and assembled.

The operation of the apparatus for treating a suspended cyclic suspension material of the present invention will be described with reference to the flow of influent water as follows.

(Not shown) so that the inflow water IN comes in through the inlet 10 and passes through the primary acceleration separation holes 32 and flows through the primary and secondary compartments 30 and 40, The flow of the downward vortex (F1, F2, F3) occurs. In the first descending vortex or first descending vortex, the flow of primary ascending vortex (F4) separates the suspended material from the influent. That is, the suspended substance relatively heavy compared to the fluid is lowered while rotating close to the side of the outer cylinder 30 by the vortex, and does not rise together with the primary upward vortex, and flows into the suspended matter collecting portion 80. That is, the relatively large suspended solids in water are first removed in this process.

Subsequently, the flow of the first rising vortex (indicated by the order of F5, F6, F7, F8) occurs in the space between the intermediate cylinder 40 and the inner cylinder 50. [ The first rising vortex is increased so that the flow direction of the first rising vortex is changed by the upper plate 100 to flow into the inner barrel 50 and the flow of the second falling vortex F10, F11, F12, F13 ) Is generated, and secondly, the relatively small-sized microsuspension substance is separated from water and discharged into the suspended substance collecting section 80 at the lower end (indicated by arrow F16). Accordingly, an opening 54 is formed in the lower portion of the inner cylinder 50 so that the fine suspended material can be introduced into the suspended material collecting portion 80 at the lower portion. Then, the treated water (F14, OUT2) flows out by the operation of an outflow pump (not shown) connected to the outlet 60, and then the treated water is reused.

The upper structure of the inner tube 50 considering the relationship between the upper plate 100 and the inner tube 50 may be configured in various forms.

3 and 4, the upper end of the inner cylinder 50 is spaced apart from the upper plate 100 so that the first upward vortex flows from the upper end of the inner cylinder 50 to the upper end of the upper plate 100 (56). ≪ / RTI >

Next, as in the structure of the inner cylinder 50 'shown in FIGS. 5 and 6, a rising vortex inlet 56b for introducing a first rising vortex into the inner cylinder 50' is provided on the side of the inner cylinder 50 ' ') Is formed. That is, in relation to the upper plate 100, the remaining portion 56a 'except for the portion where the upward vortex inlet 56b' is formed abuts against the upper plate, and compared with the structure shown in FIGS. 3 and 4, This structure is preferred when the centrifugal force of the rising vortex is relatively weak.

Finally, as in the structure of the inner cylinder 50 "shown in Figs. 7 and 8, a first ascending vortex flows into the side surface of the inner cylinder 50" Holes 56 "are formed. This structure is preferred when the centrifugal force of the first rising vortex is relatively weaker than that of the structures shown in FIGS. 5 and 6, so that it is necessary to additionally generate centrifugal force.

As described above, the apparatus for treating a suspended cyclic suspended material according to the embodiments of the present invention recovers particulate solids such as separation, concentration, and purification in the fields of mine, water and sewage treatment, industrial water, wastewater treatment, It is possible to efficiently remove floating matters or minute suspended substances in water and to avoid the waste of power, and it is possible to operate and maintain easily and economically.

10: inlet 25: centrifugal acceleration chamber
30: outer tube 32: primary acceleration separation hole
40: intermediate cylinder 50: inner cylinder
60: outlet 70: blocking plate
80: suspended matter collecting part 90: outlet
100: top plate

Claims (1)

An inlet for introducing influent water;
An outlet for discharging the treated water in which the suspended matter contained in the influent water is separated;
An outlet for discharging suspended solids contained in the inflow water flowing through the inlet;
Wherein a plurality of primary acceleration separation holes are formed for generation of a primary downward vortex along the side surface;
Wherein at least a portion of the inflow water that rotates in the space is introduced into the outer cylinder through the plurality of primary acceleration separation holes so that the inflow water from the inlet can rotate around the outer cylinder at the upper portion of the outer cylinder, A centrifugal acceleration chamber communicating with the primary acceleration separation holes so that the primary acceleration separation holes can be formed;
A suspended solids collecting part connected to the outlet and for introducing suspended solids separated from the influent;
An intermediate cylinder spaced from the outer cylinder within the outer cylinder;
The intermediate cylinder being spaced apart from the intermediate cylinder inside the intermediate cylinder and the lower end being positioned higher than the bottom of the suspended material collector in the suspended material collector;
A first rising vortex is generated by switching the flow of the first falling vortex to a space between the middle passage and the inner barrel, and a second rising vortex is generated from the first falling vortex to the first rising vortex A blocking plate for preventing re-floating of the suspended matter in the suspended matter collecting part when the flow of the suspended material is changed;
An upper plate covering the upper portion of the outer cylinder, the intermediate cylinder, and the inner cylinder, through which the outlet flows, so that a secondary downward vortex is generated by switching the flow of the primary upward vortex; ≪ / RTI >
The suspended matter collecting unit collects suspended solids that fall between the outer cylinder and the intermediate cylinder according to the flow of the first descending vortex and the suspended matter that descends from the inside of the inner cylinder and is discharged to the lower end of the inner cylinder together A lower portion of the outer tube, a lower portion of the middle tube, and a lower portion of the inner tube, wherein the diameter of the suspended material collecting portion is larger than the diameter of the outer tube,
Wherein the outer tube and the intermediate tube are formed in a cylindrical shape having a constant diameter, and a space between the outer tube and the intermediate tube is constant in the entire section,
Wherein a distance between the lowermost point of the intermediate cylinder and the inner cylinder of the intermediate cylinder is made widest,
Wherein the blocking plate is provided at a position spaced apart from the lower end of the intermediate cylinder and is located immediately below the intermediate passage between the inner barrel spaces so that the re-rise of the suspended material in the suspended material collecting portion due to the lowering of the flow velocity at the low- Wherein the second cyclone suspended solids treatment apparatus comprises:

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