JP2011020756A - Solid-gas separating and weighing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid-gas separating and weighing device capable of accurately weighing powder and grain after solid-gas separation. <P>SOLUTION: This solid-gas separating and weighing device 1 weighs the powder and grain after solid-gas separation by separating the power and grain in gas into the solid and the gas, and includes a cyclone device 2, a hopper 3 provided with the cyclone device 2 and receiving the powder and grain after solid-gas separation, a load cell 4 for weighing the hopper 3, an inlet side flexible tube 5 and an outlet side flexible tube 6 connected to the inlet side and the outlet side of the cyclone device 2. The outlet side flexible tube 6 is arranged so as to sandwich the cyclone device 2 to the inlet side flexible tube 5, and these are arranged in the substantially same position in the vertical direction. When a solid-gas separator is projected along the direction D1 for extending the inlet side flexible tube 5, an upstream side end part of the outlet side flexible tube 6 is arranged in its plane of projection. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solid-gas separation / metering device, and more particularly, to a solid-gas separation / metering device that solid-gas separates and measures a granular material in a gas.

2. Description of the Related Art Conventionally, a solid-gas separation and measurement device that separates and measures powder particles in a gas is known.
For example, a transport pipe and a suction pipe formed of a flexible material are connected, a filter medium is provided inside, and a cylindrical hopper extending in the vertical direction is driven by a suction device connected to the downstream end of the suction pipe. , By sucking the gas containing the granular material from the transport pipe, the granular material is solid-gas separated by the filter medium, and then the hopper in which the granular material is received is measured by a weighing machine provided below the hopper, It has been proposed to measure powder particles in a hopper (see, for example, Patent Document 1).

  Moreover, in the apparatus of Patent Document 1, the suction pipe is connected to the upper end of the hopper, and the transport pipe is connected in the middle of the hopper in the vertical direction. Further, the transport pipe is connected in a tangential direction at the outer periphery of the hopper, and the suction pipe is connected in a radial direction at the center of the hopper.

Japanese Patent Publication No.49-5796

However, in the apparatus of Patent Document 1, when the suction device is driven and the internal space of the transport pipe and the suction pipe communicating therewith is decompressed, the transport pipe and the suction pipe are formed of a flexible material. Both contract.
Then, since the vertical positions of the transport pipe and the suction pipe are different, the vertical position of the hopper may be displaced in accordance with the contraction thereof.

Furthermore, since the transport pipe is connected along the tangential direction on the outer periphery of the hopper, and the suction pipe is connected in the radial direction at the center of the hopper, the hopper is positioned in the horizontal direction as they contract. It may be displaced.
As a result, the vertical and horizontal positions of the hopper become unstable, the hopper cannot be accurately measured, and further, the solid-gas separated powder particles may not be accurately measured.

  An object of the present invention is to provide a solid-gas separation / weighing device capable of accurately measuring solid-gas separated powder particles.

  In order to achieve the above object, the powder / measuring device of the present invention is a solid-gas separation / weighing device for solid-gas separation of the powder / granular material in gas and measuring the solid / gas separated powder / particles. A solid-gas separation device for solid-gas separation of powder particles in a gas; a hopper for receiving the solid-gas separation powder particles provided by the solid-gas separation device; and for measuring the hopper Load cell, an inlet-side flexible tube connected to the inlet side of the solid-gas separation device, and an outlet-side flexible tube connected to the outlet side of the solid-gas separation device, wherein the outlet-side flexible tube is the inlet It is arranged so that the solid-gas separation device is sandwiched with respect to the side flexible tube, and the inlet side flexible tube and the outlet side flexible tube are arranged at substantially the same position in the vertical direction. , When along the direction in which the inlet side flexible tube extends projecting the solid-gas separation device, it is characterized in that the upstream end of the outlet side flexible tube to the projection plane is disposed.

In the solid-gas separation / metering device, when the suction device connected to the outlet side flexible tube or the air blowing device connected to the inlet side flexible tube is provided and the suction device or the air blowing device is driven, the outlet side The flexible tube and the inlet side flexible tube tend to contract or extend.
In the solid-gas separation / metering device according to the present invention, the outlet-side flexible tube is disposed so as to sandwich the solid-gas separation device with respect to the inlet-side flexible tube, and the inlet-side flexible tube and the outlet-side flexible tube are in the vertical direction. In FIG. Therefore, the stress applied to the hopper by the outlet side flexible tube due to the contraction or expansion and the stress applied to the hopper by the inlet side flexible tube due to the contraction or expansion are applied at the same position in the vertical direction and cancel each other.

As a result, the vertical position of the hopper can be secured stably.
Further, when projected onto the solid-gas separation device along the direction in which the inlet-side flexible tube extends, the upstream end of the outlet-side flexible tube is disposed within the projection plane. Therefore, even if both the inlet side flexible tube and the outlet side flexible tube contract or elongate due to the driving of the suction device or the air blower described above, the stress that the outlet side flexible tube gives to the hopper, and the inlet side flexible tube The stress applied to the hopper by the tubes cancels each other in the horizontal direction.

As a result, the horizontal position of the hopper can be secured stably.
Therefore, the vertical and horizontal positions of the hopper can be stably secured, and thus the solid and gas separated powder particles can be accurately measured.
In the solid-gas separation / metering device of the present invention, it is preferable that the direction in which the inlet-side flexible tube extends and the direction in which the outlet-side flexible tube extend are substantially parallel.

In this solid-gas separation / metering device, the expansion / contraction direction of the inlet side flexible tube and the expansion / contraction direction of the outlet side flexible tube are substantially parallel. For this reason, stresses based on them are surely canceled out.
Therefore, the horizontal position of the hopper can be secured more stably.
In the solid-gas separation / metering device of the present invention, it is preferable that the length of the inlet side flexible tube and the length of the outlet side flexible tube are substantially the same.

  In this solid-gas separation / metering device, even if the inlet side flexible tube and the outlet side flexible tube contract or expand due to the driving of the suction device or the air blower, their lengths are substantially the same. Or the extension range is substantially the same. Therefore, the stress applied to the hopper by the inlet side flexible tube due to contraction or extension and the stress applied to the hopper by the outlet side flexible tube due to contraction or extension have substantially the same magnitude, and they are surely canceled.

As a result, the horizontal and vertical positions of the hopper can be secured more stably.
The solid-gas separation / metering device of the present invention further includes a support base that supports the hopper via the load cell, and includes an upstream end portion in the transport direction of the inlet side flexible tube and a transport direction of the outlet side flexible tube. It is preferable that the downstream end portion is supported by the support base.

  In this solid-gas separation / metering device, the inlet side flexible tube, the outlet side flexible tube, and the hopper are supported by the same support base. Therefore, the relative arrangement of the inlet side flexible tube, the outlet side flexible tube, and the hopper can be ensured with high accuracy.

  According to the solid-gas separation / weighing device of the present invention, the vertical and horizontal positions of the hopper can be stably secured, and thereby the solid-gas separated powder particles can be accurately measured. .

It is a side view of one embodiment of the solid-gas separation and metering device of the present invention. FIG. 2 is a plan view of the solid-gas separation / metering device shown in FIG. 1. It is a top view of other embodiments (a mode in which an outlet side flexible tube is arranged along the tangential direction of a cyclone device) of the solid gas separation and metering device of the present invention. It is a top view of other embodiment (a mode in which an entrance side flexible tube and an exit side flexible tube are arranged on the same straight line) of the solid gas separation and metering device of the present invention. It is a top view of other embodiments (a mode where an axis of an entrance side flexible tube and an exit side flexible tube crosses) other embodiments of the solid gas separation and metering device of the present invention.

FIG. 1 is a side view of an embodiment of the solid-gas separation / metering device of the present invention, and FIG. 2 is a plan view of the solid-gas separation / metering device shown in FIG.
In the following description, the upstream side in the transport direction and the downstream side in the transport direction of air and powder (for example, pellets) are simply referred to as “upstream side” and “downstream side”.
1 and 2, this solid-gas separation / metering device 1 is a solid-gas separation / metering device that solid-gas-separates powder particles in gas and measures the solid-gas separated powder particles.

  This solid-gas separation / metering device 1 includes a cyclone device 2 as a solid-gas separation device, a hopper 3 provided with the cyclone device 2, a load cell 4 for weighing the hopper 3, an inlet side of the cyclone device 2 (air and powder) An inlet side flexible tube 5 connected to the upstream side of the body conveyance direction), and an outlet side flexible tube 6 connected to the outlet side of the cyclone device 2 (downstream side of the air and granular material conveyance direction). .

The cyclone apparatus 2 solid-gas separates the granular material in the gas. The cyclone device 2 is provided in the upper part of the solid-gas separation / metering device 1 at a substantially center in a plan view and has a substantially cylindrical shape extending in the vertical direction.
The cyclone device 2 is connected to a first body portion 10 having a substantially cylindrical shape extending in the vertical direction, a first lid portion 11 that closes an upper end portion of the first body portion 10, and a side surface of the first body portion 10. The first connecting pipe 7, the second connecting pipe 8 connected to the upper surface of the first lid 11, and the third connecting pipe 9 provided on the side surface of the first main body 10 are provided.

The 1st main-body part 10 is formed from rigid materials, such as stainless steel and steel, for example. Further, the first main body 10 is formed in a substantially cylindrical shape having an axis X in the vertical direction.
The first lid portion 11 is made of, for example, the same rigid material as described above. Moreover, the 1st cover part 11 is formed in planar view substantially disk shape.
The first connection pipe 7 is made of, for example, the same rigid material as described above. The first connecting pipe 7 extends in the horizontal direction in the middle (center) of the first main body 10, and more specifically, the first connecting pipe 7 extends in the tangential direction D 3 of the first main body 10. The downstream end of the first connecting pipe 7 is connected to the side surface of the first main body 10 so as to be along. Further, the upstream end of the first connection pipe 7 is connected to an inlet side flexible tube 5 described later.

The second connection pipe 8 is made of a flexible material such as silicone resin, for example.
The upstream end portion of the second connection pipe 8 is connected to the center of the first lid portion 11, whereby the second connection pipe 8 communicates with the first main body portion 10. The downstream end of the second connection pipe 8 is connected to a third connection pipe 9 described below.
Further, the second connecting pipe 8 is abbreviated in a side view and a plan view so as to bypass the first connecting part 11 and the first main body part 10 at an intermediate portion in the transport direction so as to bypass the second connecting pipe 8 with a gap therebetween. It is formed in a U shape.

The third connection pipe 9 is made of the above-described rigid material, for example. The third connecting tube 9 is a T-shaped tube formed with three mouths, and one of the mouths described above is fixed to the first main body 10.
That is, the third connection pipe 9 is connected to the first and second mouth portions 29 and 31 that are arranged to face each other, and the straight pipe portion (branch point) between the first and second mouth portions 29 and 31. A second opening 30 provided at the end of the branch pipe that branches in a T-shape is formed.

The second opening 30 is connected to the downstream end of the second connection pipe 8. Moreover, the 1st opening part 29 is connected with the upstream edge part of the outlet side flexible tube 6 mentioned later.
On the other hand, the third opening 31 is a fixed end fixed to the outer surface of the first main body 10 and is closed by the outer surface of the first main body 10.
In the third connection pipe 9, the facing direction D <b> 4 of the first mouth portion 29 and the third mouth portion 31 is along the radial direction of the first main body portion 10 (that is, toward the axis X of the first main body portion 10). And the 1st connection pipe 7 is substantially parallel to the tangential direction D3 connected to the 1st main-body part 10. FIG.

  Further, when the first connecting pipe 7 and the third connecting pipe 9 are projected in a direction perpendicular to the tangential direction D3 in which the first connecting pipe 7 is connected to the first main body part 10, the first connecting pipe 7 and the third connecting pipe 9 are It arrange | positions so that the axis line X may be pinched | interposed. That is, the first connecting pipe 7 and the third connecting pipe 9 are arranged on both sides of the axis X of the first main body 10 in the tangential direction D3 with respect to the first main body 10 of the first connecting pipe 7.

The hopper 3 receives the granular material that has been solid-gas separated by the cyclone device 2. The hopper 3 is provided below the cyclone device 2. The hopper 3 includes a cyclone device 2 when projected in the vertical direction. The hopper 3 includes a second main body portion 22, a second lid portion 23, an arm portion 25, an air vibrator 14, and a discharge portion 24.
The 2nd main-body part 22 is formed from the rigid material similar to the above, for example. The second main body portion 22 shares the axis X of the first main body portion 10, the upper portion is formed in a cylindrical shape, and the lower portion continuing to the lower end portion of the upper portion is directed from the upper side to the lower side. It is formed in a substantially conical cylinder shape that is gradually reduced in diameter.

The second lid portion 23 is formed in a substantially annular plate shape in plan view, and closes the upper end portion of the second main body portion 22. Further, the lower end portion of the first main body portion 10 described above is connected to the inner periphery of the second lid portion 23. Thereby, the 1st main-body part 10 and the 2nd main-body part 22 are mutually connected.
The arm portion 25 is provided on the outer surface of the upper end portion of the upper portion of the second main body portion 22, and a plurality (three) of the arm portions 25 are provided at equal intervals in the circumferential direction of the second main body portion 22. Each arm portion 25 extends in the horizontal direction, and specifically, is formed in a substantially rectangular shape in plan view extending from the outer surface of the upper portion of the second main body portion 22 toward the outer side in the radial direction.

The air vibrator 14 is provided in a lower portion of the second main body portion 22, and specifically, is fixed to an outer surface of the lower portion of the second main body portion 22.
The discharge part 24 is provided below the second main body part 22. The discharge unit 24 includes a first discharge valve 26 provided above the discharge unit 24, a discharge chute 27 provided below the first discharge valve 26, and a second discharge valve 28 provided below the discharge chute 27. And.

The discharge chute 27 is formed in a substantially cylindrical shape extending in the vertical direction, the upper end portion of the discharge chute 27 is connected to the first discharge valve 26, and the lower end portion of the discharge chute 27 is connected to the second discharge valve 28. Has been. The discharge chute 27 is connected to the lower end portion of the lower portion of the second main body portion 22 via the first discharge valve 26.
For example, another processing device (not shown) such as a molding machine is connected to the downstream side of the second discharge valve 28.

A plurality of load cells 4 are provided between the arm portion 25 and a frame portion 18 (described later) and a bridge portion 32 (described later), and each load cell 4 is disposed so as to be in contact with the lower surface of each arm portion 25. Has been.
The inlet side flexible tube 5 is a flexible tube having flexibility. The inlet-side flexible tube 5 is appropriately selected depending on the processing capacity and scale of the solid-gas separation / metering device 1. For example, a straight pipe is molded into a wave (bellows) shape in a cross-sectional view along the axis. Used. In addition, it does not specifically limit as a material which forms the inlet side flexible tube 5, For example, stainless steel etc. are used.

  More specifically, the inlet side flexible tube 5 can be expanded and contracted in a direction D1 (the left-right direction in FIG. 1 and the horizontal direction in FIG. 2) in which the inlet side flexible tube 5 extends. Specifically, the inlet-side flexible tube 5 can be contracted in a direction D1 in which the inlet-side flexible tube 5 extends by depressurization of the inner space of the inlet-side flexible tube 5 due to driving of a suction blower (not shown) described later. .

The inlet side flexible tube 5 is arranged to extend linearly along the horizontal direction. The downstream end of the inlet side flexible tube 5 is connected to the first connection pipe 7. Thereby, the inlet side flexible tube 5 communicates with the first main body portion 10 via the first connection pipe 7.
The inlet side flexible tube 5 is arranged on the same straight line as the first connecting pipe 7 in a plan view and a side view. Thereby, the inlet side flexible tube 5 is arranged so as to extend in the tangential direction with respect to the cyclone device 2.

The dimensions of the inlet side flexible tube 5 are appropriately selected depending on the processing capacity and scale of the solid-gas separation / metering device 1.
The downstream end of the fourth connecting pipe 20 is connected to the upstream end of the inlet side flexible tube 5.
The fourth connection pipe 20 is made of, for example, the same rigid material as described above. In addition, a storage tank (not shown) in which powder particles are stored is connected to the upstream end of the fourth connection pipe 20.

  The outlet side flexible tube 6 is a flexible tube having flexibility. The outlet-side flexible tube 6 is appropriately selected depending on the processing capacity and scale of the solid-gas separation / metering device 1. For example, a straight pipe is molded into a wave (bellows) shape in a sectional view along the axis. Used. In addition, it does not specifically limit as a material which forms the exit side flexible tube 6, For example, stainless steel etc. are used.

  The outlet side flexible tube 6 can be expanded and contracted in a direction D2 in which the outlet side flexible tube 6 extends (left and right direction in FIG. 1, horizontal direction in FIG. 2). Specifically, the outlet-side flexible tube 6 can be contracted in a direction D2 in which the outlet-side flexible tube 6 extends by depressurization of the internal space of the outlet-side flexible tube 6 caused by driving a suction blower (not shown) described later. .

Moreover, the exit side flexible tube 6 is arrange | positioned so that it may extend linearly along a horizontal direction. The upstream end of the outlet side flexible tube 6 is connected to the first opening 29 of the third connecting pipe 9. As a result, the outlet-side flexible tube 6 communicates with the first main body portion 10 via the third connection pipe 9 and the second connection pipe 8.
Thereby, in the exit side flexible tube 6, when the cyclone apparatus 2 is projected along the direction D1 in which the entrance side flexible tube 5 extends, the upstream end of the exit side flexible tube 6 is arranged in the projection plane. Yes.

Further, the outlet-side flexible tube 6 is arranged on the same straight line in the straight line along the facing direction D4 of the first mouth part 29 and the third mouth part 31 of the third connection pipe 9 in plan view and side view. . Thereby, the outlet side flexible tube 6 is arranged so as to extend in the radial direction with respect to the cyclone device 2.
The inlet side flexible tube 5 and the outlet side flexible tube 6 are arranged at substantially the same position in the vertical direction (vertical direction), and the direction D1 in which the inlet side flexible tube 5 extends and the outlet side flexible tube 6 are The extending direction D2 is substantially parallel.

Further, the outlet side flexible tube 6 and the inlet side flexible tube 5 are arranged in the horizontal direction (direction D2 in which the outlet side flexible tube 6 extends) in the cyclone device 2 (and the first connecting pipe 7, the second connecting pipe 8, and the third It is arranged so as to sandwich the connecting pipe 9).
The dimensions of the outlet-side flexible tube 6 are appropriately selected depending on the processing capacity and scale of the solid-gas separation / metering device 1. For example, the inner diameter is substantially the same as the inner diameter of the inlet-side flexible tube 5. The length L2 of the outlet side flexible tube 6 is substantially the same as the length L1 of the inlet side flexible tube 5.

The upstream end of the fifth connection pipe 21 is connected to the downstream end of the outlet side flexible tube 6.
The fifth connection pipe 21 is made of, for example, the same rigid material as described above. A suction device (not shown) such as a suction blower is connected to the downstream end of the fifth connection pipe 21.
The solid-gas separation / metering device 1 further includes a support base 15 for supporting the hopper 3.

The support base 15 is made of, for example, the same rigid material as described above. The support base 15 is provided around the cyclone device 2 in plan view. More specifically, the support base 15 is formed in a substantially rectangular frame shape in plan view surrounding the cyclone device 2. The support base 15 is integrally provided with a lower support portion 16 and an upper support portion 17 provided on the upper portion of the lower support portion 16.
The lower support portion 16 is integrally provided with a frame portion 18 having a substantially rectangular frame shape in plan view, a leg portion 33 provided on the lower side of the frame portion 18, and a bridge portion 32 provided on the frame portion 18. .

The frame portion 18 includes two first frame portions 18a arranged in parallel and opposite to each other in parallel with a direction D1 in which the inlet side flexible tube 5 extends (a direction D2 in which the outlet side flexible tube 6 extends). The first frame portion 18a is integrally provided with two second frame portions 18b that are connected to each other in parallel with each other in the longitudinal direction.
On the upper side of one of the first frame portions 18a (the lower side in the drawing of FIG. 2), an arm portion 25 is disposed oppositely in the center in the longitudinal direction, and the load cell 4 is interposed via a spacer 36 at the opposite portion. Is provided.

The leg part 33 hangs down from the four corners of the frame part 18, and the lower end part of the leg part 33 is fixed to the upper surface of the base 35 indicated by an imaginary line.
Two bridge portions 32 are installed inside the two frame portions 18 orthogonal to each other (on the cyclone device 2 side) so as to be inclined with respect to them. Specifically, of the two bridge portions 32, one bridge portion 32 is constructed between the other first frame portion 18a and one second frame portion 18b, and the other bridge portion 32 is connected to the other bridge portion 32. It spans between the first frame portion 18a and the other second frame portion 18b.

On the upper side of each bridge portion 32, the arm portion 25 is disposed so as to face the center in the longitudinal direction, and the load cell 4 is provided on the facing portion via a spacer 36.
Each load cell 4 (one load cell 4a disposed above the first frame portion 18a and two load cells 4b disposed above the bridge portion 32) is disposed at substantially the same position in the vertical direction. The two load cells 4b arranged on the upper side of the bridge portion 32 are centered on a straight line SL passing through the load cell 4a arranged on the upper side of the first frame portion 18a and the axis X of the cyclone device 2 in plan view. It is arranged with line symmetry.

And in the lower support part 16, the lower surface of the arm part 25 arrange | positioned facing the load cell 4 arrange | positioned above the 1st frame part 18a and the bridge part 32 contacts. Thereby, the load cell 4 can measure the hopper 3. Further, the first frame portion 18 a and the bridge portion 32 of the lower support portion 16 support the hopper 3 through the load cell 4.
The upper support portion 17 includes a first upper support portion 17a and a second upper support portion 17b that are provided in a plurality (two) corresponding to the two second frame portions 18b. The first upper support portion 17a and the second upper support portion 17b are provided on the upper surface of each second frame portion 18b, and are formed in a bowl shape extending upward from the upper surface of the second frame portion 18b.

The first upper support portion 17a is disposed so as to be slightly shifted to the one side in the longitudinal direction from the substantially longitudinal center of the one second frame portion 18b. Further, the second upper support portion 17b is disposed at the substantially center in the longitudinal direction of the other second frame portion 18b.
The lower ends of the first upper support portion 17a and the second upper support portion 17b are fixed to the upper surface of the second frame portion 18b, respectively. Further, through holes 37 (37a and 37b) penetrating in the horizontal direction are formed in the upper ends of the first upper support portion 17a and the second upper support portion 17b, respectively.

The fourth connection pipe 20 is inserted into the through hole 37a of the first upper support part 17a, and thereby the fourth connection pipe 20 is fixed to the first upper support part 17a.
The fifth connection pipe 21 is inserted into the through hole 37b of the second upper support part 17b, and thereby the fifth connection pipe 21 is fixed to the second upper support part 17b.
As a result, the first upper support portion 17 a supports the upstream end portion of the inlet side flexible tube 5 via the fourth connection pipe 20. The second upper support portion 17 b supports the downstream end portion of the outlet side flexible tube 6 via the fifth connection pipe 21.

Further, the upper support portion 17 causes the cyclone device 2 to contract within the direction D1 in which the inlet side flexible tube 5 extends (direction D3 in which the outlet side flexible tube 6 extends) of the inlet side flexible tube 5 and the outlet side flexible tube 6. It is supported so that it can swing within the range corresponding to.
Next, a method for solid-gas separation of particles in gas using the solid-gas separation / metering device 1 and measuring the solid-gas separated particles will be described.

In this method, first, a suction blower (not shown) connected to the fifth connection pipe 21 is driven.
As a result, the internal space of the fifth connecting pipe 21, the outlet side flexible tube 6, the third connecting pipe 9, the second connecting pipe 8, the cyclone device 2, the hopper 3, the first connecting pipe 7 and the fourth connecting pipe 20 is decompressed. It becomes. Then, the granular material in a storage tank (not shown) connected to the fourth connection pipe 20 flows into the cyclone device 2 together with air through the fourth connection pipe 20, the inlet side flexible tube 5 and the first connection pipe 7. .

In the cyclone device 2, the solid-gas separated powder particles are dropped into the hopper 3 and temporarily stored in the hopper 3. On the other hand, the separated air is discharged from the cyclone device 2 to the outside through the second connection pipe 8, the third connection pipe 9, the outlet side flexible tube 6 and the fifth connection pipe 21.
At the same time, the hopper 3 in which the powder is stored is weighed by the load cell 4.

The weighing of the hopper 3 by the load cell 4 is performed while the suction blower is being driven.
Next, after the load cell 4 weighs a predetermined amount of particles, the suction blower is stopped, and then the first discharge valve 26 and the second discharge valve 28 of the discharge unit 24 are opened and the air vibrator 14 is operated. Then, by applying vibration to the hopper 3, a predetermined amount of the granular material stored in the hopper 3 is conveyed to a processing device (molding machine) (not shown) via the discharge unit 24.

In the solid-gas separation / metering device 1, when the suction blower is driven, the outlet side flexible tube 6 and the inlet side flexible tube 5 provided so as to be freely contracted tend to contract.
In the solid-gas separation / metering device 1, the outlet-side flexible tube 6 is disposed so as to sandwich the cyclone device 2 with respect to the inlet-side flexible tube 5, and the inlet-side flexible tube 5 and the outlet-side flexible tube 6 are arranged. They are arranged at substantially the same position in the vertical direction.

Therefore, the stress that the outlet side flexible tube 6 gives to the hopper 3 via the cyclone device 2 due to the contraction and the stress that the inlet side flexible tube 5 gives to the hopper 3 via the cyclone device 2 due to the contraction are the same position in the vertical direction. Act on each other and cancel each other.
As a result, the vertical position of the hopper 3 can be secured stably.

Further, when projected onto the cyclone device 2 along the direction D1 in which the inlet side flexible tube 5 extends, the upstream end of the outlet side flexible tube 6 is disposed in the projection plane.
Therefore, even if both the inlet-side flexible tube 5 and the outlet-side flexible tube 6 contract due to the driving of the suction blower described above, the outlet-side flexible tube 6 moves to the hopper 3 via the cyclone device 2 due to their contraction. The stress applied and the stress applied to the hopper 3 by the inlet side flexible tube 5 via the cyclone device 2 cancel each other in the horizontal direction.

As a result, the horizontal position of the hopper 3 can be secured stably.
Therefore, the position of both the vertical direction and the horizontal direction of the hopper 3 can be ensured stably, and, thereby, the solid-gas separated powder particles can be accurately measured.
In the solid-gas separation / metering device 1, the inlet side flexible tube 5, the outlet side flexible tube 6, and the hopper 3 are supported by the same support base 15. Therefore, the relative arrangement of the inlet side flexible tube 5, the outlet side flexible tube 6, and the hopper 3 can be ensured with high accuracy.

In the above description, the length L2 of the outlet side flexible tube 6 and the length L1 of the inlet side flexible tube 5 are set to be substantially the same. 1 is appropriately selected depending on the processing capacity, scale, etc., and is not particularly limited.
For example, the length L2 of the outlet side flexible tube 6 can be set shorter than the length L1 of the inlet side flexible tube 5, and can be set within a range of 50 to 99%, for example.

Alternatively, the length L2 of the outlet side flexible tube 6 can be set to be longer or the same length as the length L1 of the inlet side flexible tube 5, and is set within a range of 100 to 200%, for example. You can also
Preferably, the length L2 of the outlet side flexible tube 6 and the length L1 of the inlet side flexible tube 5 are set substantially the same. Thereby, even if the inlet-side flexible tube 5 and the outlet-side flexible tube 6 contract due to the driving of the suction blower, their lengths are substantially the same, and therefore their contraction ranges are substantially the same. Therefore, the stress that the inlet side flexible tube 5 gives to the hopper 3 via the cyclone device 2 due to the contraction and the stress that the outlet side flexible tube 6 gives to the hopper 3 via the cyclone device 2 due to the shrinkage are substantially the same magnitude. And they are definitely countered.

As a result, the horizontal and vertical positions of the hopper 3 can be secured more stably.
In the above description, the cyclone device 2 is exemplified as the solid-gas separation device. However, for example, the device is not particularly limited as long as it is a device for solid-gas separation of powder particles. For example, a dust collector, specifically, A filter (bag filter) provided with a filter cloth or the like as the filter medium, or a filter provided with a punching plate as the filter medium may be used.

In the above description, in the solid-gas separation / metering device 1, a suction blower (not shown) is connected to the downstream end of the fifth connection pipe 21 as a suction device. Instead of the above-described suction blower, a blower blower can be connected to the upstream end of the fourth connecting pipe 20 as a blower.
In the solid-gas separation / metering device 1, even if the inlet side flexible tube 5 and the outlet side flexible tube 6 are both extended by driving the blower, the outlet side flexible tube 6 gives the hopper 3 by extension. The stress and the stress applied to the hopper 3 by the mouth side flexible tube 5 by extension are applied at the same position in the vertical direction and cancel each other in the horizontal direction.

Therefore, the position of the hopper 3 in the vertical direction and the horizontal direction can be stably secured, and thus the solid-gas separated powder particles can be accurately measured.
3 to 5 are plan views of other embodiments of the solid-gas separation / metering device of the present invention, and FIG. 3 is a mode in which the outlet-side flexible tube is disposed along the tangential direction of the cyclone device, FIG. 4 is a mode in which the inlet side flexible tube and the outlet side flexible tube are arranged on the same straight line, and FIG. 5 is a mode in which the axes of the inlet side flexible tube and the outlet side flexible tube intersect.

In addition, about the member corresponding to each above-mentioned part, the same referential mark is attached | subjected in each subsequent figure, and the detailed description is abbreviate | omitted.
In the description of FIG. 2 described above, the third connecting pipe 9 is connected to the first main body portion 10 so that the facing direction D4 of the first mouth portion 29 and the third mouth portion 31 is along the radial direction of the first main body portion 10. For example, as shown in FIG. 3, the facing direction D4 of the first mouth portion 29 and the third mouth portion 31 is in a tangential direction D3 in which the first connecting pipe 7 is connected to the first main body portion 10. It can also be fixed along.

In FIG. 3, the facing direction D <b> 4 of the first connection part 29 and the third connection part 31 in the third connection pipe 9 and the tangential direction D <b> 3 in which the first connection pipe 7 connects to the first main body part 10 are substantially parallel. is there.
The third connecting pipe 9 is arranged symmetrically with the first connecting pipe 7 about the axis X of the first main body 10 in plan view.
The direction D2 in which the outlet side flexible tube 6 extends is substantially parallel to the direction D1 in which the inlet side flexible tube 5 extends. In the outlet side flexible tube 6, the cyclone device 2 extends along the direction D1 in which the inlet side flexible tube 5 extends. , The upstream end of the outlet-side flexible tube 6 is disposed in the projection plane.

As shown in FIG. 4, the third connecting pipe 9 is connected to the first connecting pipe 7, the load cell 4 a disposed above the first frame portion 18 a and the axis X of the cyclone device 2 in plan view. It is also possible to arrange them symmetrically about a straight line SL passing through the center.
In FIG. 4, the facing direction D <b> 4 of the first connection part 29 and the third connection part 31 in the third connection pipe 9 and the tangential direction D <b> 3 in which the first connection pipe 7 connects to the first main body part 10 are substantially parallel. More specifically, they are arranged on the same straight line.

In other words, the inlet side flexible tube 5 and the outlet side flexible tube 6 are arranged on the same straight line.
Furthermore, in the description of FIGS. 2 to 4 described above, the inlet side flexible tube 5 and the outlet side flexible tube 6 are arranged substantially in parallel in a plan view. For example, as shown in FIG. It is also possible to arrange them so that their axes intersect.

In FIG. 5, the third connection pipe 9 is a Y-shaped pipe including a first branch pipe 12, a second branch pipe 38, and a third branch pipe 13 that branch in a Y shape from a branch point.
A first opening 29 is formed at the end of the first branch pipe 12 as a downstream end of the third connection pipe 9, and an upstream end of the outlet side flexible tube 6 is connected thereto. The axis of the first branch pipe 12 is arranged on the same straight line as the axis of the outlet side flexible tube 6.

A second opening 30 is formed at the end of the second branch pipe 38 as an upstream end of the third connection pipe 9, and a downstream end of the second connection pipe 8 is connected thereto.
The third branch pipe 13 extends along a tangential direction D <b> 3 in which the first connection pipe 7 is connected to the first main body 10, and the end of the third branch pipe 13 is on the outer surface of the first main body 10. The fixed end is fixed. The axis of the third branch pipe 13 is arranged on the same straight line as the axes of the inlet side flexible tube 5 and the first connection pipe 7.

Moreover, in the exit side flexible tube 6, when the cyclone apparatus 2 is projected along the direction D1 where the entrance side flexible tube 5 extends, the upstream end part of the exit side flexible tube 6 is arrange | positioned in the projection surface. .
Moreover, the angle α formed by the direction D1 in which the inlet side flexible tube 5 extends and the direction D2 in which the outlet side flexible tube 6 extends is not particularly limited, and is, for example, 0 to 90 degrees, and preferably 0 to 45 degrees.

  Preferably, as shown in FIGS. 2 to 4, the inlet side flexible tube 5 and the outlet side flexible tube 6 are arranged substantially in parallel in a plan view. Thereby, since the shrinkage direction of the inlet side flexible tube 5 and the shrinkage direction of the outlet side flexible tube 6 are substantially parallel, the axes of the inlet side flexible tube 5 and the outlet side flexible tube 6 intersect with each other. Compared with the case where it arrange | positions to, the stress based on the shrinkage | contraction of the entrance side flexible tube 5 and the exit side flexible tube 6 is canceled more reliably mutually.

  Therefore, the horizontal position of the hopper 3 can be secured more stably.

DESCRIPTION OF SYMBOLS 1 Solid-gas separation and measurement apparatus 2 Cyclone apparatus 3 Hopper 4 Load cell 5 Inlet side flexible tube 6 Outlet side flexible tube 15 Support stand

Claims (4)

A solid-gas separation and measurement device for solid-gas separating particles in a gas and measuring the solid-gas separated powder particles,
A solid-gas separation device for solid-gas separation of particles in a gas,
A hopper provided with the solid-gas separation device, for receiving the solid-gas separated powder particles;
A load cell for weighing the hopper,
An inlet-side flexible tube connected to the inlet side of the solid-gas separator, and
An outlet-side flexible tube connected to the outlet side of the solid-gas separation device;
The outlet side flexible tube is disposed so as to sandwich the solid-gas separation device with respect to the inlet side flexible tube,
The inlet side flexible tube and the outlet side flexible tube are arranged at substantially the same position in the vertical direction,
When the solid-gas separation device is projected along the direction in which the inlet-side flexible tube extends, an upstream end of the outlet-side flexible tube is disposed in the projection plane. Separation and weighing device. The solid-gas separation / metering device according to claim 1, wherein a direction in which the inlet side flexible tube extends and a direction in which the outlet side flexible tube extends are substantially parallel. The solid-gas separation / metering device according to claim 1 or 2, wherein the length of the inlet side flexible tube and the length of the outlet side flexible tube are substantially the same. A support base for supporting the hopper via the load cell;
The conveyance direction upstream end part of the said inlet side flexible tube and the conveyance direction downstream end part of the said outlet side flexible tube are supported by the said support stand, Any one of Claims 1-3 characterized by the above-mentioned. The solid-gas separation and weighing device according to claim 1.

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