JP2018167183A - Dispersion device and dispersion method of particulate matter - Google Patents

Abstract

To provide a dispersion device and a dispersion method of particulate matter capable of changing a place to which the particulate matter is scattered, or an amount by which the particulate matter is scattered in accordance with a time.SOLUTION: Regarding a dispersion apparatus 15 for dispersing a particulate matter P onto a moving body 10, the dispersion apparatus 15 has a rectifying device 21 arranged on the upper side of the moving body 10 and the rectifying device 21 has an inclined face 16 inclining downward from one end side to the other end side and a mobile changing wall 18 which is provided on the inclined face 16 and changes a direction in which the particulate matter P flows, and is constituted such that the particulate matter P is supplied to one end side of the inclined face 16, the particulate matter P collides against the changing wall 18 in the procedure of rolling down on the inclined face 16, changes the proceeding direction and falls onto the moving body 10 from the other end side of the inclined face 16.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a method and a device for spraying powder particles on a sheet flowing in a certain direction.

  A conventional powder particle spraying device is disposed in a hopper for temporarily storing powder supplied from the outside, a spray tube extending outward from a side wall of the hopper, and the spray tube. And a screw that feeds the granular material in the hopper toward the tip of the spray tube. The granular material sent out by the screw falls from the tip of the spray tube and is sprayed on the sheet flowing under the spray tube.

  At this time, since the outlet of the powder provided in the spray tube is one place (the tip of the spray tube), a large amount of powder is sprayed directly below the spray tube in the sheet flowing below. However, there has been a problem that the amount of powdered particles is reduced in the surrounding area. That is, there has been a problem that the powder particles cannot be uniformly dispersed in a direction (Cross Direction direction, CD direction) intersecting the sheet flow direction. In particular, when manufacturing a sheet (SAP sheet) in which a superabsorbent polymer (SAP) is sandwiched between two non-woven fabrics, it is necessary to finely control the amount sprayed in the CD direction. The current equipment has a problem that such control is not possible.

Patent Documents 1 and 2 listed below are examples of prior art documents related to a powder particle spraying method and a spraying device.
The manufacturing method of the composite sheet which concerns on the following patent document 1 arrange | positions a several sliding board so that it may become alternate in an up-down direction, and a liquid absorptive granular material (henceforth "a granular material") follows a sliding board. Then, it is slid down while being inverted, and falls onto the top sheet flowing under the sliding plate. And by providing a guide groove or a guide member on the sliding plate, it is possible to supply the granular material only to the target portion (concave portion) in the width direction of the sheet and not supply the granular material to other portions. It is disclosed that it can be done.

  In the powder particle dispersion method according to Patent Document 2 below, correction guides are provided below both ends of the distribution tube, and the guides swing in a direction crossing the base material. And by this peristaltic movement, it is possible to widen or narrow the dispersion width of the powder.

JP 2010-220768 A JP 2004-188285 A

  However, the manufacturing method according to Patent Document 1 cannot change the amount of the granular material supplied to each concave portion with time, or change the supply location of the granular material with time. Moreover, although the supply method of the said patent document 2 can change the supply amount of a granular material with time, it is two choices of supplying a spraying place to the whole width direction, or supplying to a center part. I can only do that. Therefore, Patent Documents 1 and 2 have a problem that they are not suitable for the manufacture of products that require fine control of the dispersion of the granular material during the manufacture.

  Then, the main subject of this invention is providing the spraying method and spraying apparatus of a granular material which can change the place and quantity which spray a granular material with time.

The present invention that has solved the above problems is as follows.
(1) A spraying device for spraying powder on a moving body,
The spraying device has a rectifier arranged above the moving body,
The rectifier is
A slope with a downward slope from one end to the other,
A movable change wall that is provided on the slope and changes the flow direction of the particles.
The granular material is supplied to one end side of the slope, and in the process of rolling down the slope, the granular body collides with the change wall and changes its traveling direction, and the moving body from the other end side of the slope. A spraying device characterized by being configured to fall on top.

(Function and effect)
The powder particles roll down from one end side of the slope toward the other end side along the slope of the slope. Therefore, for example, when a change wall is not provided on the slope and the powder is evenly supplied in a direction crossing the slope, the powder rolls down the slope without changing its traveling direction. . The granular material that has rolled down to the other end falls from the slope onto the moving body. The amount of the powder particles falling on the moving body is almost equal in the crossing direction of the slope.

  The spraying device according to the present invention has a change wall on the slope. The granular material collides with the change wall in the process of rolling down the slope, is guided by the change wall, changes its traveling direction, and then falls onto the moving body from the other end of the slope. Therefore, the amount of the powder particles falling on the moving body can be arbitrarily changed in the transverse direction of the slope. It is also possible not to spray the granular material on a part of the moving body. Furthermore, by making the change wall movable, it is possible to change the spray amount and spray position of the granular material with time.

(2) The changing device according to (1), wherein the change wall moves laterally on the slope.

(Function and effect)
When the change wall moves laterally on the slope, the direction in which the granular material is guided by the change wall and advances changes with time. Therefore, the amount of powder particles falling on the moving body in the direction crossing the slope can be changed with time. Moreover, the location where the granular material does not fall on the moving body can be changed with time.

  Furthermore, a part of the change wall can be moved in the horizontal direction so that the extension direction of the change wall coincides with the inclination direction of the slope. When matched in this way, the granular material rolls down the slope as it is without any particular change in the traveling direction, and the effect (1) does not occur. In this state, when a part of the change wall is moved in the lateral direction, the granular material again collides with the change wall, and the effect (1) described above is exhibited again. In this embodiment, such switching can also be performed.

(3) The changing device according to (1) or (2), wherein the change wall floats from the slope.

(Function and effect)
When the change wall is on the slope, the granular material collides with the change wall and changes its traveling direction, so that the same effect as the above (1) is achieved. On the contrary, when the change wall rises from the slope, the granular material rolls down the slope as it is without changing its traveling direction, so that the effect (1) is not achieved. In this embodiment, such switching can be performed.

(4) The rectifier is
The spraying device according to (1), further including a partition wall extending along the slope of the slope and partitioning the slope into a plurality of spaces.

(Function and effect)
It is possible to prevent the powder particles rolling down the slope from moving to the adjacent space beyond the partition wall.

(5) The spraying device according to (4), wherein the change wall constitutes a part of the partition wall.

(Function and effect)
Compared to the case where the change wall does not constitute a part of the partition wall, the structure of the rectifying device is simplified. The price of the rectifier can be reduced and the maintainability is improved.

(6) The rectifier
The spraying device according to (1), further including a cover for preventing scattering of the granular material.

(Function and effect)
When the granular material rolls down the slope, or when the granular material collides with the change wall, scattering of the granular material can be prevented.

(7) The rectifier
The spraying device according to (1), further including a shutter on the other end side of the slope.

(Function and effect)
When the shutter is opened, the granular material falls on the moving body, but when the shutter is closed, it does not fall. By repeatedly opening and closing the shutter, the powder particles can be intermittently dispersed.

(8) The spraying device
The spraying device according to (1), further including a blower that blows air from one end side to the other end side of the slope.

(Function and effect)
When the moving body moves at a high speed, the amount of powder particles placed on the moving body decreases. By using the blower to blow air from one end side to the other end side, the speed at which the powder body rolls down the slope is increased, so that the amount of the powder body placed on the moving body can be increased.

(9) A spraying method of spraying granular material on a moving body using a rectifier,
The rectifying device is disposed above the moving body,
A slope with a downward slope from one end to the other,
A movable change wall that is provided on the slope and changes the flow direction of the granular material,
The granular material is supplied to one end side of the slope, and in the process of rolling down the slope, the granular body collides with the change wall and changes its traveling direction, and the moving body from the other end side of the slope. A spraying method characterized by falling onto the top.

  As described above, according to the spraying device and the spraying method of the present invention, the location and amount of spraying the granular material can be changed over time.

1 is a plan view of a first embodiment of a spraying device according to the present invention. It is a top view which shows the state after the change wall of FIG. 1 moved. It is a left view of FIG. It is a side view of 2nd Embodiment. The change wall on the other end side of the slope is shown in a floating state. FIG. 5 is a plan view of FIG. 4. It is a side view of 3rd Embodiment. The state after the change wall in the middle part of the slope surfaced is shown. It is a top view of a 3rd embodiment. The state before the change wall in the middle part of the slope rises is shown. It is a top view of a 4th embodiment. The change wall at the middle of the slope moves in the horizontal direction. It is a top view of a 5th embodiment. The change wall on one side of the slope is configured to move in the lateral direction. It is a perspective view of 6th Embodiment. It is a perspective view which shows the state which provided the cover and the shutter in FIG. FIG. 12 is a perspective view showing a state where the shutter of FIG. 11 is closed. It is a perspective view which shows the state which blows toward an inclined surface.

(Application of spraying device)
The spreading | diffusion apparatus 15 which concerns on this invention is an apparatus which spreads the granular material P on the moving body 10 which moves.
For example, in the manufacture of an SAP sheet, it is used when SAP (a kind of granular material P) is dispersed on a moving lower layer sheet (a kind of moving body 10). For reference, the process after spraying SAP is described. By overlaying the upper sheet on the lower sheet on which the powder P is placed, the upper and lower sheets are sealed and cut at a predetermined interval. Get an SAP sheet.
As another example, in the manufacture of disposable diapers, when SAP is sprinkled on a pile of pulp fibers (a type of mobile body 10) placed on a moving back surface sheet (a type of mobile body 10) Can be used.
The moving body 10 moves from the downstream side to the upstream side by the belt conveyor 11 or the like.

(How to proceed with the explanation)
Details of the present invention will be described below.
First, (1) the configuration of the spraying device 15 and related items will be described. Specifically, (A) granular material P, (B) slope 16, (C) partition wall 17, (D) change wall 18, (E) spray tube 1 (annular body 2, spray hole 3, transporter) ), (F) cover 19, (G) shutter 20, (H) blower, and (I) other order.
Next, (2) a spraying method will be described. Specifically, it will be described in the order of (J) a basic flow when dust particles P are sprayed, and (K) a flow sequence when adjusting the spray amount of the powder particles P.

(1) Configuration of spraying device 15 and related matters (A) Granule P
An example of the powder P is a superabsorbent resin (SAP) used to absorb body fluid such as urine.
There are various forms of the powder P, such as powder, particles, granules, and pellets, and any of them can be used in the present invention. Particulate materials are particularly suitable.

  The particle size of each particle of the granular material P is not particularly limited, but, for example, sieving (shaking for 5 minutes) using a standard sieve (JIS Z8801-1: 2006) of 500 μm, and falling under the sieving by this sieving. When particles were subjected to sieving (shaking for 5 minutes) using a 180 μm standard sieve (JIS Z8801-1: 2006), the proportion of particles remaining on the 500 μm standard sieve was 30% by weight or less, and 180 μm It is desirable that the proportion of particles remaining on the standard sieve is 60% by weight or more.

  Moreover, although the weight of each particle | grain of the granular material P is not specifically limited, For example, it is desirable to use a thing with a weight average of 0.2-10 mg.

(B) Slope 16
The spraying device 15 has a rectifying device 21. The rectifying device 21 is a device that is arranged above the moving body 10 and adjusts the flow of the powder particles P. In 1st-5th embodiment, it has arrange | positioned in the middle of the spreading pipe 1 and the mobile body 10. FIG.

  The rectifier 21 includes a slope 16. The slope 16 is provided so as to be inclined with respect to the horizontal direction. This is for the powder P to roll down.

  The angle α between the horizontal plane and the slope 16 (FIG. 3) is not particularly limited, but is preferably 30 to 80 degrees, and more preferably 40 to 60 degrees. When the angle is less than 30 degrees, the powder P hardly rolls down on the slope 16. Therefore, after the powder P is supplied to one end of the slope 16, it takes too much time to be discharged from the other end, and the amount of the powder P falling on the moving body 10 is reduced. End up. On the other hand, if it is larger than 80 degrees, the granular material P rolls down on the slope 16 in an instant. In the process of rolling down, the change wall 18 is collided at high speed, and the powder P is scattered in all directions, making it difficult to control the flow of the powder P.

  The length of the inclined direction of the inclined surface 16 is not particularly limited, but is preferably 8 cm to 40 cm, for example. Also, the length of the slope 16 in the transverse direction is not particularly limited, but is preferably 6 cm to 30 cm, for example.

  As the material of the slope 16, for example, steel, synthetic resin, or the like can be used. The slope 16 is typically a flat plate, but other shape members such as a plate whose middle part is gently curved downward may be used.

(C) Partition wall 17
The rectifier 21 may be provided with a partition wall 17. The partition wall 17 extends along the slope of the slope 16 and partitions the slope 16 into a plurality of spaces. In the first to fifth embodiments, there are four partition walls 17 and the partition walls 17 are arranged in parallel. By the plurality of partition walls 17, five spaces S are arranged in order from the left side to the right side of the slope 16. In this description, these spaces S are referred to as the first column space S1... The fifth column space S5 in order from the left side of FIG.

Note that the number of spaces S can be arbitrarily changed. For example, it can be 2 or more, and about 2 to 10 is appropriate. The partition wall 17 may not be provided, and the number of spaces S in that case is one.
The shape of the partition wall 17 is not limited to a linear shape, and can be changed to any known shape such as a curved shape. Further, the arrangement of the partition wall 17 is not limited to the form in which the partition wall 17 is arranged in parallel with the inclination direction of the slope 16, and the partition wall 17 may be arranged to be inclined so as to intersect the inclination direction.

  Note that outer walls 22 are provided at both ends of the slope 16 in the transverse direction. The outer wall 22 prevents the powder P from spilling outward from the end.

  In 1st-5th embodiment, the granular material P is supplied to the one end side of each space S from each spray hole 3 provided in the spray pipe 1, respectively. Specifically, a fixed amount of powder P is supplied from the spray holes 3 of the annular body 2A to the first row of spaces S1, and a fixed amount of powder is supplied from the spray holes 3 of the annular body 2B to the second row of spaces S2. Granules P are supplied (the same applies to the other columns). By partitioning each space S with the partition wall 17, for example, the powder P supplied to the space S <b> 1 in the first row is prevented from moving to the adjacent space S <b> 2 beyond the partition wall 17. Therefore, the granular material P supplied to the space S1 in the first row rolls down the slope 16 from one end side to the other end side without moving to the space S2 in the second row, and the moving body 10 from the other end side. Fall on top. As described above, the partition wall 17 restricts diffusion of the slope 16 in the transverse direction in the process in which the granular material P rolls down the slope 16.

  The amount of the granular material P supplied to each space S from each spray hole 3 can be set to a different amount. In the first to fifth embodiments, the amount of the granular material P to be supplied to the first space S1, the second space S2, the fourth space S4, and the fifth space S5 is the same, The amount of the granular material P supplied to the space S3 in the third row is smaller than in the other rows. This is intended to reduce the amount of the granular material P sprayed on the central portion of the moving body 10 in the CD direction as compared with other portions. As described above, by providing the partition wall 17, the diffusion of the powder body P in the transverse direction of the slope 16 is limited. Therefore, when the partition wall 17 is provided, by changing the amount of the powder P supplied to each space S from each supply hole 3, the amount of spraying in the CD direction of the moving body 10 can be easily changed.

(D) Change wall 18
The rectifier 21 has a change wall 18. The change wall 18 is provided on the slope 16. Examples of the target for fixing the change wall 18 include the slope 16 and the partition wall 17. As the fixing method, a form in which a ring-shaped portion is provided on the change wall 18 and a fixing rod is inserted into the ring can be exemplified. Other known means may be used as the fixing object and fixing method of the change wall 18, but in any case, it is preferable to fix the change wall 18 so that it can move. An example of the change wall 18 is a single flat plate, but other known members may be used.

(First embodiment)
In the first embodiment, a change wall 18 is provided at the other end of the slope 16 (FIG. 1). Specifically, the upper end portion of the change wall 18 is fixed to the lower end portion of the partition wall 17, and the change wall 18 is a part of the partition wall 17. Two change walls 18 are attached to one partition wall 17. In the movement of the change wall 18, the fixed portion on one end side of the change wall 18 serves as a fulcrum F, and the portions other than the fixed portion swing left and right.

  In a state in which the two change walls 18 are positioned on the extension line of the partition wall 17, the granular material P flows down on the moving body 10 as it is without changing the traveling direction by the change wall 18 (FIG. 2). That is, the region E where the granular material P is not dispersed in the CD direction due to the change wall 18 does not occur. In FIG. 2, there is a region E2 in which the powder P is not dispersed. This is because the amount of the powder P supplied to the space S3 in the third row is small. It is not due to the influence of 18.

  When the change wall 18 moves to the left or right side of the slope 16 from the state of FIG. 2, the change wall 18 becomes an oblique wall that intersects the flow direction of the powder P (inclination direction of the slope 16) (FIG. 1). . The granular material P rolling down the slope 16 due to gravity hits the change wall 18 and changes its traveling direction. Specifically, the granular material P that collides with the change wall 18 moves along the inclination of the upper wall surface 18u of the change wall 18 and further rolls from the other end side end portion of the change wall 18 to the other end side of the slope 16. drop down. Thus, when the change wall 18 moves and tilts in an oblique direction, an area E (E1) in which the granular material P is not scattered in the CD direction of the moving body 10 is generated due to the influence of the change wall 18. In addition, due to the influence of the granular material P that has moved along the change wall 18, a region in which the amount of the granular material P sprayed is large in the CD direction of the moving body 10. The region where the amount of application is large is generated at a position where the other end side end portion of the change wall 18 is extended to the other end side along the slope of the slope 16.

(Second Embodiment)
The second embodiment is characterized in that the change wall 18 moves in the direction of rising from the slope 16.
In the present embodiment, similarly to FIG. 1, the two other change walls 18 adjacent to each other have a shape opened to the left and right so that the other end sides are separated from each other. In the state where the change wall 18 is in contact with the slope 16 (the change wall 18 is located on the slope 16), the granular material P rolling down the slope 16 collides with the change wall 18 and changes its traveling direction. In the CD direction of the moving body 10, a region E (E1) where the powder particles P are not dispersed is formed.

  On the other hand, when the change wall 18 is lifted from the slope 16 (FIG. 4), the granular material P does not collide with the change wall 18 and rolls down the slope 16 as it is. As a result, the region E (E1) does not occur (FIG. 5).

  The surfacing change wall 18 can land on the slope 16. When the change wall 18 returns onto the slope 16, the region E (E1) is generated again. In the present invention, the region E <b> 1 can be intermittently formed in the MD direction of the moving body 10 by repeating the rising and landing of the change wall 18. The floating / landing movement of the change wall 18 can be realized, for example, by providing a rail (not shown) upward from the slope 16 and moving along the rail.

  Also in the second embodiment, similarly to the first embodiment, the change wall 18 can be moved in the horizontal direction. In this case, the effects of the first embodiment are also exhibited.

(Third embodiment)
In 3rd Embodiment, the change wall 18 is provided in the intermediate part (between one end part and other end part) of the inclination direction of the slope 16 (FIG. 7). The change wall 18 has a mountain shape protruding toward one end side of the slope 16 in a plan view, and is disposed in the space S3 in the third row.

  In the vicinity of the intersection of the end of the change wall 18 and the partition wall 17 (position upstream of the intersection), there is a region B where the partition wall 17 does not exist. That is, the partition wall 17 extends linearly along the inclination direction of the slope 16, but a part of the partition wall 17 is interrupted, and the interrupted portion is a position immediately upstream of the end of the change wall 18. .

The change wall 18 repeats floating and landing as in the second embodiment.
When the change wall 18 is positioned on the slope 16, the granular material P that has rolled down the space S <b> 3 in the third row collides with the change wall 18. A part of the granular material P rolls down to the adjacent left space (second row space S2), and the other rolls down to the adjacent right space (fourth row space S4). As a result, the amount of the granular material P that falls on the moving body 10 from the spaces S2 and S4 increases, and the granular material P does not fall on the moving body 10 from the space S3 (FIG. 7).

  When the change wall 18 rises from the slope 16, the powder P does not collide with the change wall 18. Therefore, the granular material P is spread | dispersed similarly to FIG.

(Fourth embodiment)
The fourth embodiment is a modification of the third embodiment (FIG. 8). That is, a part of the partition wall 17 between the spaces S2 and S3 and a part of the partition wall 17 between the spaces S3 and S4 function as the change wall 18. The change wall 18 is movable in the transverse direction (left side or right side) of the slope 16. In the state in which the two change walls 18 are overlapped on the space S3 (FIG. 8), the granular material P is placed on the moving body 10 from the other end side of the spaces S2 and S4 as in FIG. 7 of the third embodiment. Although it falls, it does not fall from the other end side of the space S3.

When the two change walls 18 move away from each other from the state shown in FIG. 8 and the overlapping state is released, the granular material P falls from the other end side of the space S3.
Further, when the change wall 18 moves into the space S2, a part (or all) of the granular material P flowing through the space S2 moves to the space S3. As a result, the amount of the granular material P that falls on the moving body 10 from the space S2 decreases (or the granular material P does not fall from the space S2), and the amount of the granular material P that falls from the space S3 decreases. Become more. A similar phenomenon occurs when the change wall 18 moves into the space S4.

  Further, when the partition wall 17 and the change wall 18 are positioned in a straight line, the flow of the granular material P is not changed by the change wall 18. Therefore, the granular material P is spread | dispersed similarly to FIG.

(Fifth embodiment)
In the fifth embodiment, the change wall 18 is provided on one end side of the slope 16. The change wall 18 swings in the transverse direction of the slope 16. Even when the change wall 18 is provided on one end side of the slope 16, the spraying location and the spraying amount of the granular material P can be changed as in the first embodiment.

  The change wall 18 is preferably provided on the other end side rather than the one end side of the slope 16. When the change wall 18 is provided on one end side of the slope 16, the flow of the granular material P is adjusted by the change wall 18, and then in the process of rolling down the slope 16, the change wall 18 is dispersed in the transverse direction of the slope 16. This is because the granular material P may not be sprayed on the intended location of the body 10. Therefore, the distance between the moving body 10 and the change wall 18 is preferably as close as possible.

(Other)
Although the length of the change wall 18 can be arbitrarily determined, a length that can form a state in which the granular material P does not fall from the space S when the change wall 18 moves to the left and right is preferable. The first embodiment (FIG. 1) will be described as an example. The change wall 18r1 located on the rightmost side in the transverse direction can form a state in which the granular material P does not fall from the space S5. The total length L (the length from one end to the other end) is preferably longer than the length W in the transverse direction of the space S5.

  Further, the change wall 18r2 located on the left side of the change wall 18r1 can form a state in which the granular material P does not fall from the space S4, so that the total length L of the change wall 18 is the length in the transverse direction of the space S4. It is preferable to make it longer than 1/2 of the length W. Unlike the change wall 18 of the space S5, the reason why the length is ½ is that there is another change wall 18r3 on the left side of the space S4, and the other change wall 18r3 corresponds to the remaining ½ length. This is because the area can be blocked. In the form of FIG. 1, the lengths of the change walls 18 are all the same, but may be different lengths. At this time, it is preferable that the total length of the left and right change walls 18r3 and 18r2 in the space S4 is longer than the length W in the transverse direction of the space S4.

In addition, it is preferable to provide the change wall 18 in both the left and right sides rather than providing only in either the left side or the right side of each space S. The first embodiment (FIG. 1) will be described as an example. Although the change wall 18r1 is on the left side of the space S5, the change wall 18 is not present on the right side (on the extended line of the outer wall 22). Therefore, when the change wall 18r1 is moved slightly to the right side, the granular material P does not fall on the moving body 10 from the left side portion of the space S5, and an area E (E1) where the granular material P does not exist on the left side portion. It is formed. At this time, the granular material P falls on the moving body 10 from the right side portion of the space S5, and an area where the granular material P exists is formed. And if the said change wall 18r1 is further moved to the right side and is made to contact | abut on the outer wall 22, it will be in the state from which the granular material P does not fall from space S5. As described above, when the change wall 18r1 is gradually moved to the right side, the region E1 is first formed on the moving body 10 corresponding to the left side portion of the space S5, and the region is gradually enlarged from there to the right side.
However, since the change wall 18 does not exist on the right side of the space S5, the region E1 is formed on the moving body 10 corresponding to the right side of the space S5, and the powder particles are formed on the moving body 10 corresponding to the left side of the space S5. A region where the body P exists cannot be formed. In order to enable such a spraying form, it is preferable to form the change walls 18 on both the left and right sides of the space S.

(E) Spreading tube 1
The spraying device 15 may be provided with the spraying tube 1. The spray tube 1 is used for spraying the powder P. As the spray pipe 1, for example, a single straight pipe made of steel can be used.

(A) Ring body 2
The spray tube 1 may have an annular body 2. The position where the annular body 2 is disposed is preferably a portion facing the moving body 10. This is because the granular material P is sprayed from the spraying holes 3 provided in the annular body 2. For example, in the form in which the fixed tube 4 on the base end side of the spray tube 1 is fixed to the hopper 5 and the spray tube 1 extends in the horizontal direction from the fixed portion, the movable body 10 on the distal end side of the spray tube 1. It is preferable to arrange the annular body 2 at a position facing the.

(B) Spray hole 3
The annular body 2 is provided with a spray hole 3. Although the number of the spray holes 3 can be determined arbitrarily, for example, when there are five spaces (S1 to S5) as shown in FIG. 1, it is preferable to provide the spray holes 3 corresponding to the respective spaces. This is because the granular material P is dispersed in each space.

(C) Transporter A transporter (not shown) that transports the granular material P can be provided inside the spray tube 1. As an example of this transporter, one steel material wound in a spiral shape can be cited. In addition, a screw or the like may be used.

(F) Cover 19
Since the granular material P is light, it may be scattered when rolling down the slope 16. Therefore, it is preferable to provide the rectifier 21 with a cover 19 for preventing scattering. In the example shown in FIG. 11, the cover 19 is provided above the rectifying device 21 so as to straddle the outer wall 22 and the partition wall 17.

(G) Shutter 20
A shutter 20 can also be provided at the other end of the rectifier 21 (FIGS. 11 and 12). By opening and closing the shutter 20, the powder particles P can be intermittently dispersed in the MD direction of the moving body 10.

(H) Blower Device The blower device 15 may be provided with a blower device (not shown). By blowing air A with this blower, the speed of the granular material P flowing on the slope 16 can be increased, and even when the moving body 10 moves at a high speed, the granular material P is surely secured. Can be sprayed on.

(I) Others The spraying device 15 can be provided with a hopper 5 that temporarily stores the powder P supplied to the spraying tube 1, a support member that supports the spraying tube 1, and the like. Since these are not the main parts of the present invention, detailed description is omitted.
In addition, as shown in FIG. 3, it is preferable to give the pyramid-like bulge to the one end side part of the rectifier 21, and to supply the granular material P in the rectifier 21 easily. In addition, as in the sixth embodiment, the bulge may not be given with emphasis on ease of manufacturing (FIG. 10).

(2) Spreading method (J) Basic flow of spraying granular material P Below, the basic flow at the time of spraying the granular material P is demonstrated.
First, the granular material P is supplied to the hopper 5 of the spraying device 15. The supplied granular material P is temporarily stored in the hopper 5. Next, the granular material P is transported from the proximal end side to the distal end side of the spray tube 1 using the transporter 8. The granular material P that has moved to the distal end side of the spray tube 1 falls from the spray hole 3 formed in the annular body 2. The granular material P dropped from the spray hole 3 lands on one end side of the slope 16 of the rectifying device 21. The ground granular material P moves from one end side (upper side) to the other end side (lower side) according to the inclination of the slope 16, falls from the other end side, and moves below the rectifier 21. On top.

(H) Adjustment flow of powder particle P application amount When adjusting the application amount of the powder material P, the change wall 18 provided in the rectifier 21 is moved. Specifically, the spraying place and the spraying amount of the granular material P can be changed by swinging the changing wall 18 in the lateral direction of the slope 16 or repeating the rising and landing.

1: spray tube, 2: annular body, 3: spray hole, 4: fixed tube, 5: hopper, 10: moving body, 11: belt conveyor, 15: spray device, 16: slope, 17: partition wall, 18: Change wall, 19: cover, 20: shutter, 21: rectifier, 22: outer wall, A: air, P: powder, S: space

Claims (9)

A spraying device for spraying powder on a moving body,
The spraying device has a rectifier arranged above the moving body,
The rectifier is
A slope with a downward slope from one end to the other,
A movable change wall that is provided on the slope and changes the flow direction of the particles.
The granular material is supplied to one end side of the slope, and in the process of rolling down the slope, the granular body collides with the change wall and changes its traveling direction, and the moving body from the other end side of the slope. A spraying device characterized by being configured to fall on top.   The spraying device according to claim 1, wherein the change wall moves in the lateral direction on the slope.   The spraying device according to claim 1 or 2, wherein the change wall floats from the slope. The rectifier is
The spraying device according to claim 1, further comprising a partition wall extending along the slope of the slope and partitioning the slope into a plurality of spaces.   The spraying device according to claim 4, wherein the change wall constitutes a part of the partition wall. The rectifier is
The spraying device according to claim 1, further comprising a cover for preventing the powder particles from scattering. The rectifier is
The spraying device according to claim 1, further comprising a shutter on the other end side of the slope. The spraying device
The spraying device according to claim 1, further comprising a blower that blows air from one end side to the other end side of the slope. A spraying method for spraying powder particles on a moving body using a rectifier,
The rectifying device is disposed above the moving body,
A slope with a downward slope from one end to the other,
A movable change wall that is provided on the slope and changes the flow direction of the granular material,
The granular material is supplied to one end side of the slope, and in the process of rolling down the slope, the granular body collides with the change wall and changes its traveling direction, and the moving body from the other end side of the slope. A spraying method characterized by falling onto the top.

Images