Powder separation device

Abstract

To provide a powder separation device which can separate a powder easily.SOLUTION: A powder separation device includes: an inflow part 2 into which a first fluid A as a fluid containing a gas and a powder flows; a first outflow part 3 from which the powder B contained in the first fluid A flows out; and a second outflow part 4 from which a second fluid C as a fluid other than the powder B which has flowed out flows out. The inflow part 2 has a first inflow port 2A which is located at one end side at an interior of a first cylindrical body 1A and is open near an inner wall surface of the first cylindrical body 1A. The first outflow part 3 is located at the other end side at the interior of the first cylindrical body 1A, and the second outflow part 4 has a second cylindrical body 4A extending in a first direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a powder separating device. [Background technology]

[0002] Background of the present technical field is JP 2003-327328 A (Patent Document 1), which describes a "batch-type suction-type pneumatic transport device." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-327328 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is a risk that the gas and the powder cannot be easily separated. [Means for solving the problem]

[0005] In order to solve the above problems, for example, the following configuration is adopted. A powder separating device having a first cylindrical body extending in a first direction from one end side to the other end side, an inflow section into which a first fluid, which is a fluid containing gas and powder, flows; A first outlet portion through which powder contained in the first fluid flows out; A second outlet portion through which a second fluid flows out, the second fluid being a fluid other than the flowed out powder, The inlet portion is Located at one end side inside the first cylindrical body, a first inlet opening adjacent to an inner wall surface of the first cylindrical body; the first outlet portion is located on the other end side inside the first cylindrical body, The second outlet portion has a second cylindrical body extending in the first direction, The second cylindrical body is Located between the first inlet portion and the first outlet portion inside the first cylindrical body, Located inside the first cylindrical body with respect to the first inlet, The second fluid is connected to an outlet through which the second fluid flows out to the outside of the first cylindrical body, The end of the second cylindrical body on the other end side is closed, The end of the second cylindrical body on the one end side includes a second inlet through which the second fluid flows into the second cylindrical body. Powder separation equipment.

[0006] The second outlet portion further includes a third cylindrical body extending in the first direction, the third cylinder is located between the first inlet portion and the first outlet portion inside the first cylinder, The one end and the other end are each open, The second cylinder is located inside the third cylinder. Powder separation equipment.

[0007] The inlet portion is an upstream first inlet located upstream of the first inlet, through which the first fluid flows into the first cylindrical body from a direction different from that of the first inlet; A connecting flow path connecting the upstream first inlet and the first inlet, the connecting flow path is an annular flow path through which the first fluid flowing in from the upstream first inlet can circulate, the first inlet is a portion that opens along the annular shape of the connection flow path, The flow path width of the connecting flow path is not constant. Powder separation equipment.

[0008] the third cylinder has a bottom surface at an end portion on the other end side that is in contact with the end portion on the other end side of the second cylinder, The bottom surface has a first through hole at a position not overlapping with the second cylindrical body, the first through hole being an opening at an end portion on the other end side of the third cylindrical body. Powder separation equipment.

[0009] The bottom surface has a second through hole at a position overlapping with the second cylindrical body. Powder separation equipment.

[0010] a fourth cylindrical body connected to the other end of the first cylindrical body; a powder recovery section connected to an end of the fourth cylinder on the other end side and configured to recover the powder, The inner wall of the fourth cylinder is inclined inwardly as it approaches the powder recovery section. Powder separation equipment.

[0011] the powder recovery unit includes a recovery unit housing, a plurality of plate-shaped elastic bodies located inside the recovery unit housing and in contact with the first fluid, and a rotating unit that rotates the plurality of plate-shaped elastic bodies, The plate-shaped elastic body rotates so as to be able to come into contact with an inner wall of the recovery unit housing. Effect of the Invention

[0012] According to the present invention, gas and powder can be easily separated. Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of one embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional schematic diagram of one embodiment. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2, seen from one end side. [Figure 4] FIG. 4 is a view of the second cylindrical body and the third cylindrical body as viewed from the other end side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The powder separating device 1 in this embodiment is a device for separating gas and solid, and in particular, a device for separating powder from gas. In other words, the powder separating device 1 causes a first fluid, which is a fluid containing gas and powder, to flow in from an inlet portion 2, separates the powder and causes it to flow out from a first outlet portion 3, and causes a second fluid to flow out from a second outlet portion 4.

[0015] The first fluid is a fluid containing gas and powder. The gas may be, for example, a dry gas having a relatively low moisture content. The gas may be, for example, air or a rare gas such as nitrogen or argon. The powder may be, for example, dried tea leaves or freeze-dried beverage powder. The powder may be, for example, a food product. The powder may be, for example, a pharmaceutical powder.

[0016] As shown in Fig. 1 and Fig. 2, the powder separating device 1 has a first cylindrical body 1A, an inlet section 2, a first outlet section 3, and a second outlet section 4. The powder separating device 1 has a cylindrical shape extending in a first direction which is also a vertical direction. In other words, the powder separating device 1 extends in the first direction from one end where the inlet section 2 is located to the other end where the first outlet section 3 is located. The powder separating device 1 may be used by connecting a pressure reducing device 5 to the second outlet section 4. Hereinafter, the upper side in the vertical direction is referred to as one end side, and the lower side in the vertical direction is referred to as the other end side.

[0017] The first cylindrical body 1A is a member for housing the inlet portion 2, the first outlet portion 3, and the second outlet portion 4. The first cylindrical body 1A has a cylindrical shape. The cylindrical shape extends in a first direction from one end to the other end. The first cylindrical body 1A may be formed of, for example, a metal material. For example, iron, aluminum, or stainless steel may be used as the metal material. The length of the first cylindrical body 1A in the first direction may be, for example, 60 cm to 80 cm. The diameter of the first end side of the first cylindrical body 1A may be, for example, 30 cm to 40 cm. The diameter of the other end side of the first cylindrical body 1A may be, for example, 35 cm to 45 cm.

[0018] The inlet section 2 is a member for allowing the first fluid to flow from the outside to the inside of the first cylindrical body 1A. The inlet section 2 is located inside the first cylindrical body 1A. The inlet section 2 is located on one end side of the first cylindrical body 1A. The inlet section 2 has a first inlet 2A that opens near the inner wall surface of the first cylindrical body 1A. Here, the vicinity of the inner wall surface of the first cylindrical body 1A may be a position in contact with the inner wall surface of the first cylindrical body 1A as shown in FIG. 2. In addition, the distance from the inner wall of the first cylindrical body 1A to the closest edge of the first inlet 2A may be about 0.1 cm to 5 cm.

[0019] The first inlet 2A is an opening for guiding the first fluid that has flowed into the first cylindrical body 1A from the inlet portion 2 into the first cylindrical body 1A. As shown in Fig. 3, the first inlet 2A may be provided as, for example, a circular opening along the inner wall surface of the first cylindrical body 1A.

[0020] The first inlet 2A may be, for example, a plurality of openings provided along the inner wall surface of the first cylindrical body 1A. The first inlet 2A may be, for example, an arc-shaped opening that is not annular. The width of the first inlet 2A may be, for example, 5 cm to 10 cm.

[0021] The inlet section 2 may have, for example, a first upstream inlet 2B upstream of the first inlet 2A. The first upstream inlet 2B may be, for example, a flow path formed of a cylindrical member extending in a second direction different from the first direction. The second direction may extend, for example, in a direction perpendicular to the first direction (horizontal direction). The diameter of the first upstream inlet 2A may be, for example, 10 cm to 20 cm.

[0022] As shown in FIG. 2 and FIG. 3, the inflow section 2 may have, for example, a connection flow path 2C connecting the upstream first inlet 2B and the first inlet 2A. The connection flow path 2C is a flow path for allowing the first fluid to flow from the upstream first inlet 2B to the first inlet 2A. The connection flow path 2C may be an annular flow path through which the first fluid can circulate. The first inlet 2A may be open along the annular connection flow path 2C. The width of the connection flow path 2C may not be constant. The width of the connection flow path 2C may be narrower, for example, as it is farther from the upstream first inlet 2B. This makes it easier for the first fluid that flows in from the upstream first inlet 2B to descend along the first direction.

[0023] 2 and 3, the connection flow passage 2C may be composed of, for example, the inner wall surface of the first cylindrical body 1A, a cylinder 2D connected to one end of the first cylindrical body 1A, and a flange 2E provided on the other end of the cylinder 2D. By shifting the center of the cylinder 2D from the center of the first cylindrical body 1A, the flow passage width of the connection flow passage 2C can be made not constant. The flow passage width of the connection flow passage 2C may be, for example, 5 cm to 20 cm.

[0024] 3, the width of the first inlet 2A is narrower than the flow path width of the connection flow path 2C, and the first inlet 2A is formed by the inner wall of the first cylindrical body 1A and a flange 2E. This allows the size of the first inlet 2A to be adjusted by adjusting the position of the flange 2E. The width of the first inlet 2A may be, for example, 2 cm to 10 cm.

[0025] The first outflow section 3 is a member for causing the powder to flow out from the first fluid. The first outflow section 3 is located on the other end side inside the first cylindrical body 1A. The first outflow section 3 may have, for example, a fourth cylindrical body 3A connected to an end portion on the other end side of the first cylindrical body 1A, a powder recovery section 3B, and a rotary valve 3E.

[0026] The fourth cylinder 3A is a member for connecting the first cylinder 1A and the powder recovery section 3B. One end of the fourth cylinder 3A is connected to the other end of the first cylinder 1A. The fourth cylinder 3A may be made of the same material as the first cylinder 1A, or a different material. The inner wall of the fourth cylinder 3A may be inclined so that the other end is narrower than the one end. In other words, the inner wall of the fourth cylinder 3A may be inclined inward as it approaches the powder recovery section 3B. This makes it easier to collect the first fluid at the center of the powder recovery section 3B, making it easier to recover the powder.

[0027] The powder recovery section 3B is a member for causing the powder to flow out from the first fluid. The powder recovery section 3B may have, for example, a recovery section housing 3C, a plurality of plate-shaped elastic bodies 3D located inside the recovery section housing and in contact with the first fluid, and a rotation section 3F for rotating the plurality of plate-shaped elastic bodies 3D. The material of the recovery section housing 3C may be the same as that of the fourth cylindrical body 3A, or a different material may be used.

[0028] The material of the plate-shaped elastic body 3D may be, for example, silicon or rubber. This allows the plate-shaped elastic body 3D to rotate so as to be able to come into contact with the inner wall of the collection unit housing 3C. As a result, the powder flowing out of the first fluid can be effectively made to flow out of the fourth cylinder 3A.

[0029] At least one of the multiple plate-shaped elastic bodies 3D rotates while always in contact with at least a part of the inner wall of the collection unit housing 3C. More preferably, two or more of the multiple plate-shaped elastic bodies 3D may rotate while always in contact with substantially the entire circumference of the inner wall of the collection unit housing 3C. This reduces the possibility that the powder flowing out of the first fluid will flow back into the fourth cylinder 3A.

[0030] The rotary valve 3E is a member for discharging the powder collected by the powder recovery unit 3B to the outside of the powder separation device 1. The rotary valve 3E may have, for example, a rotor rotated by a motor in a cylindrical case (not shown). This allows the powder supplied from the powder recovery unit 3B to move downward by rotation and be discharged to the outside of the powder separation device 1 by gravity. The rotating unit 3F may be rotated by, for example, transmitting rotation from the motor of the rotary valve 3E. The rotation from the motor of the rotary valve 3E may be transmitted by connecting a belt to one side of the rotating shaft of the rotating unit 3F as shown in FIG. 1.

[0031] The second outlet section 4 is a member for allowing the second fluid, which is a fluid other than the powder that has flowed out to the powder recovery section 3B, to flow out of the powder separating device 1. The second outlet section 4 has a second cylindrical body 4A. The second cylindrical body 4A extends in a first direction. The second cylindrical body 4A is located between the inlet section 2 and the first outlet section 3 inside the first cylindrical body 1A. The second cylindrical body 4A is located inside the first cylindrical body 1A with respect to the first inlet 2A. The second cylindrical body 4A has a second inlet 4B and an outlet 4E through which the second fluid flows out of the powder separating device 1.

[0032] The second cylindrical body 4A may be, for example, cylindrical. The other end of the second cylindrical body 4A is closed. The one end of the second cylindrical body 4A is open and is a second inlet 4B through which the second fluid flows into the second cylindrical body 4A. The outlet 4E may be provided, for example, inside the second cylindrical body 4A, between the second inlet 4B and the other end of the second cylindrical body 4A.

[0033] The movement of the fluid in the powder separating device 1 will be described with reference to FIG. 2. The inside of the first cylinder 1A is decompressed by the pressure reducer 5. As shown by the solid arrow A in FIG. 2, the first fluid flows into the first cylinder 1A from the inlet 2 located at one end side of the first cylinder 1A, and moves along the inner wall of the first cylinder 1A to the first outlet 3 located at the other end side of the first cylinder 1A. As shown by the dashed arrow B in FIG. 2, the first outlet 3 recovers the powder from the first fluid. As shown by the dashed arrow C in FIG. 2, the second fluid, which is a fluid other than the powder flowing out of the first outlet 3, moves toward one end side of the first cylinder 1A along the outer wall of the second cylinder 4A. The second fluid flows into the second cylinder 4A from the second inlet 4B, and flows out of the powder separating device 1 from the outlet 4E connected to the outside.

[0034] The upstream first inlet 2B, located upstream of the first inlet 2A, is an opening for allowing the first fluid to flow into the first cylindrical body 1A from a direction different from that of the first inlet 2A, as shown in Fig. 2. Therefore, the first fluid is introduced from the upstream first inlet 2B, and when it changes direction and flows into the first inlet 2A, it collides with the inner wall surface of the first cylindrical body 1A. As a result, the first fluid moves from the first inlet 2A along the inner wall of the first cylindrical body 1A.

[0035] 2, the inner wall of the first cylindrical body 1A may be inclined, for example, along the first direction. The inclination of the inner wall of the first cylindrical body 1A may mean, for example, that the inner wall is inclined so that one end side is wider than the other end side. This makes it easier for the first fluid containing gas and powder to move along the inner wall from the inlet portion 2 to the first outlet portion 3.

[0036] These configurations can prevent the first fluid flowing in from the inlet portion 2 and the second fluid flowing out from the second outlet portion 4 from interfering with each other. This can reduce the possibility that the first fluid mixes with the second fluid and that the powder contained in the first fluid flows out from the outlet 4E before reaching the first outlet portion 3. As a result, separation of the gas and the powder can be facilitated.

[0037] The second outflow section 4 may have, for example, a third cylindrical body 4C. The third cylindrical body 4C is a member for preventing the first fluid and the second fluid from interfering with each other. The third cylindrical body 4C extends in the first direction. The third cylindrical body 4C is located inside the first cylindrical body 1A and between the inflow section 2 and the first outflow section 3. The third cylindrical body 4C is located inside the first cylindrical body 1A from the first inlet 2A. The third cylindrical body 4C has openings at both ends on one end side and the other end side of the first cylindrical body 1A. The third cylindrical body 4C has the second cylindrical body 4A inside the third cylindrical body 4C.

[0038] As shown in FIG. 4, the third cylinder 4C may have, for example, a bottom surface at the end on the other end side that contacts the end on the other end side of the second cylinder 4A. The third cylinder 4C may have a first through hole 4D at the bottom surface. The third cylinder 4C may have, for example, an end on the other end side opened by the first through hole 4D. The first through hole 4D is provided at a position that does not overlap with the second cylinder 4A. This allows the second fluid to move inside the third cylinder 4C and along the outer wall of the second cylinder 4A, making it difficult for the first fluid to interfere with the second fluid, and reducing the possibility that the first fluid mixes with the second fluid and the powder contained in the first fluid flows out of the outlet 4E before reaching the first outflow section 3. As a result, separation of the gas and the powder can be facilitated.

[0039] 4, the third cylindrical body 4C may have a second through hole 4F on the bottom surface at a position where the third cylindrical body 4C overlaps with the second cylindrical body 4A. This allows the bottom surface of the second cylindrical body 4A and the second through hole 4F on the bottom surface of the third cylindrical body 4C to form an uneven portion. However, since the second through hole 4F abuts against the bottom surface of the second cylindrical body 4A, the second fluid does not flow in through the second through hole 4F.

[0040] Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications and improvements are possible without departing from the gist of the present invention. [Explanation of symbols]

[0041] 1:Powder separator 1A: 1st cylinder 2:Inflow part 2A: 1st inlet 2B: Upstream side 1st inlet 2C: Connection channel 2D: Cylinder 2E: Flange 3: First outlet 3A: 4th cylinder 3B: Powder recovery section 3C: Recovery unit housing 3D: Plate-like elastic body 3E: Rotary valve 3F: Rotating section 4: Second outlet 4A: 2nd cylinder 4B:Second inlet 4C: Third cylinder 4D: 1st through hole 4E: Outlet 4F: 2nd through hole 5: Pressure reducer A: Movement of the first fluid B: Powder movement C: Movement of the second fluid

Claims

1. A powder separating device having a first cylindrical body extending in a first direction from one end side to the other end side, an inlet portion into which a first fluid, which is a fluid containing gas and powder, flows; A first outlet portion through which powder contained in the first fluid flows out; A second outlet portion through which a second fluid flows out, the second fluid being a fluid other than the flowed out powder, The inlet portion is Located at one end side inside the first cylindrical body, a first inlet opening adjacent to an inner wall surface of the first cylindrical body; The first outlet portion is located on the other end side inside the first cylindrical body, The second outlet portion has a second cylindrical body extending in the first direction, The second cylindrical body is Located between the first inlet portion and the first outlet portion inside the first cylindrical body, Located inside the first cylinder body with respect to the first inlet, The second fluid is connected to an outlet through which the second fluid flows out to the outside of the first cylindrical body, The end of the second cylindrical body on the other end side is closed, A powder separating device, wherein an end of the second cylindrical body at the one end side includes a second inlet through which the second fluid flows into the second cylindrical body.

2. The second outlet portion further includes a third cylindrical body extending in the first direction, The third cylindrical body is Located between the first inlet portion and the first outlet portion inside the first cylindrical body, The one end and the other end are each open, The second cylindrical body is Located inside the third cylinder, The powder separating apparatus according to claim 1 .

3. The inlet portion is an upstream first inlet located upstream of the first inlet, through which the first fluid flows into the first cylindrical body from a direction different from that of the first inlet; A connecting flow path connecting the upstream first inlet and the first inlet, the connecting flow path is an annular flow path through which the first fluid flowing in from the upstream first inlet can circulate, The first inlet is a portion that opens along an annular shape of the connection flow path, The flow path width of the connecting flow path is not constant. The powder separating apparatus according to claim 1 .

4. the third cylinder has a bottom surface at an end portion on the other end side that is in contact with the end portion on the other end side of the second cylinder, 3. The powder separating device according to claim 2, wherein the bottom surface has a first through hole at a position not overlapping with the second cylinder, the first through hole being an opening at an end portion on the other end side of the third cylinder.

5. The powder separating device according to claim 4 , wherein the bottom surface has a second through hole at a position overlapping with the second cylindrical body.

6. a fourth cylinder connected to the other end of the first cylinder; a powder recovery section connected to an end of the fourth cylinder on the other end side and configured to recover the powder, The powder separating device according to claim 1 , wherein an inner wall of the fourth cylinder is inclined inwardly as it approaches the powder collecting portion.

7. the powder recovery unit includes a plurality of plate-shaped elastic bodies that come into contact with the first fluid, and a rotating unit that rotates the plurality of plate-shaped elastic bodies, The powder separating device according to claim 6 , wherein the plate-shaped elastic body rotates so as to be able to come into contact with an inner wall of the fourth cylinder.

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