JP2015171931A - Material supply device, and material supply method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide technology for inhibiting materials supplied to a conveyance means from adhering to one another, in a material supply device which quantitatively supplies particulates from a storage container to a subsequent device while performing conveyance.SOLUTION: A material supply device 1 supplies materials stored inside a storage container 2, to a conveyance destination. The material supply device 1 includes: a discharge means 3; and a pneumatic conveyance means 5. The discharge means 3 has a discharge opening 35 for discharging materials from the inside of the storage container 2. The pneumatic conveyance means 5 conveys the materials discharged from the discharge opening 35 by air force. Air flow contacts with the discharge opening 35. As the air flow collides with the materials discharged from the discharge opening 35, even when the materials have portions adhered to one another and united at the discharge opening 35, the materials are separated near the discharge opening 35. Accordingly, the materials are inhibited from staying in a conveyance path.

Description

  The present invention relates to a material supply device and a material supply method for supplying a material made of powder or granules (hereinafter referred to as “powder particles”) to a transport destination.

  2. Description of the Related Art Conventionally, there is known a material supply device that conveys powder particles quantitatively from a storage container to a subsequent device. For example, in Patent Document 1, a screw feeder discharges powder from a powder container and transports the discharged powder using transport air in order to perform transport while supplying powder particles quantitatively. , A powder metering device is described (paragraph 0014).

JP-A-8-119455

  Like the supply device described in Patent Document 1, this type of material supply device conveys the discharge unit for quantitatively discharging the granular material from the storage container and the granular material discharged from the discharge unit. Conveying means. However, even when a discharge means that is generally used for quantitative supply, such as a screw feeder, a vibration feeder, and a table feeder, is used, the supply amount of the material slightly varies. Therefore, a high density part of the material discharged from the discharge means is generated.

  If there is a part with high density in the material supplied to the conveying means, the materials may adhere to each other in the part and may stay in the connection part between the discharging means and the conveying means or in the conveying pipeline of the conveying means. is there. However, it is difficult to completely eliminate density unevenness of the material discharged from the discharging means.

  The present invention has been made in view of such circumstances, and is supplied to a conveying means in a material supply apparatus and a material supply method for conveying a granular material while quantitatively supplying the granular material from a storage container to a subsequent apparatus. It is an object of the present invention to provide a technique that can suppress adhesion of materials to each other.

  In order to solve the above-mentioned problem, a first invention of the present application is a material supply device that supplies a material stored in a storage container to a transport destination, and discharges the material from the storage container. A discharge means, and an aerodynamic transfer means for transferring the material discharged from the discharge port by aerodynamic force, and the airflow contacts the discharge port.

  2nd invention of this application is the material supply apparatus of 1st invention, Comprising: The direction of the airflow which acts on the said discharge port outside the said discharge means is the moving direction of the said material in the vicinity of the said discharge port in the said discharge means Intersect.

  3rd invention of this application is a material supply apparatus of 1st invention or 2nd invention, Comprising: It further has a pipe line for dispersion | distribution extended from one side toward the other side, and the said discharge port is connected, The said dispersion | distribution The working line has an air flow inlet arranged on the one side from the discharge port, and an air flow from the one side to the other side is generated inside the dispersing pipe.

  4th invention of this application is a material supply apparatus of 3rd invention, Comprising: The said dispersion pipe line is diameter-reduced toward the said other side from the said one side in the said other side of the said discharge port.

  5th invention of this application is a material supply apparatus of 3rd invention or 4th invention, Comprising: The said airflow inlet is arrange | positioned toward the said outlet, The flow-path area of the said airflow inlet is the said outlet It is smaller than the flow path area of the dispersion pipe at the connection point.

  A sixth invention of the present application is the material supply device according to any one of the third to fifth inventions, wherein the dispersion pipe line extends from the upper side on the one side toward the lower side on the other side. .

  A seventh invention of the present application is the material supply apparatus according to any one of the third to sixth inventions, wherein the aerodynamic conveying means has one end connected to the other end of the dispersion pipe. An air flow generating device that generates an air flow from the one end to the other end of the transfer conduit, and a flow rate of the gas passing through the air flow generating device, and a connection location of the discharge port The flow rate of the gas passing through the dispersion pipe is substantially the same.

  An eighth invention of the present application is the material supply device according to the seventh invention, wherein the air flow introduction port introduces gas from the outside to the dispersion pipe.

  A ninth invention of the present application is the material supply device according to the seventh invention, wherein the airflow generation device sucks the gas in the transfer pipeline and introduces the gas sucked from the transfer pipeline into the airflow. Supply to mouth.

  A tenth invention of the present application is the material supply apparatus according to the first to ninth inventions, wherein the discharge means has a discharge pipe having the discharge port, and the discharge means puts the material in the discharge pipe. The material in the discharge pipe is moved to the discharge port while filling at least a part including the discharge port.

  An eleventh invention of the present application is a material supply method for supplying a material stored in a storage container to a transport destination, wherein the material is discharged from the storage container through a discharge pipe, and the discharge is performed. Airflow contacts the discharge port of the tube, and the material is transported by aerodynamic force in at least a part of the transport path from the discharge port to the transport destination.

  A twelfth invention of the present application is the material supply method according to the eleventh invention, wherein the direction of the airflow acting on the discharge port outside the discharge pipe is the moving direction of the material in the vicinity of the discharge port in the discharge pipe. Cross over.

  According to the first to twelfth inventions of the present application, even when the material has a portion where the materials adhere to each other at the discharge port, the airflow contacts the discharge port, so that in the vicinity of the discharge port. The material is dispersed. Therefore, the material is suppressed from staying in the transport path.

  In particular, according to the second invention of the present application, the material is more easily dispersed.

  In particular, according to the fourth invention of the present application, the airflow in the dispersion pipe line is accelerated on the downstream side of the discharge port. Thereby, the conveyance speed of material becomes large as it goes downstream, and the space | interval of materials spreads further. Therefore, it is further suppressed that the materials adhere to each other and stay in the conveyance path.

  In particular, according to the fifth invention of the present application, an air flow having a higher flow velocity contacts the discharge port. Thereby, the material discharged from the discharge port is more easily dispersed. Therefore, it is further suppressed that the materials adhere to each other and stay in the conveyance path.

  In particular, according to the sixth invention of the present application, the material is accelerated by gravity in the dispersion pipe. Thereby, the conveyance speed of material becomes large as it goes downstream, and the space | interval of materials spreads further. Therefore, it is further suppressed that the materials adhere to each other and stay in the conveyance path.

  In particular, according to the ninth aspect of the present invention, the dispersion pipe line and the transport pipe line form a closed space, so that the granular material can be transported using an inert gas such as nitrogen gas. If it does so, alteration and deterioration of a granular material can be prevented.

It is the schematic of the material supply apparatus which concerns on one Embodiment. It is a fragmentary longitudinal cross-sectional view of the material supply apparatus which concerns on one Embodiment. It is a fragmentary longitudinal cross-sectional view of the material supply apparatus which concerns on a modification. It is the schematic of the material supply apparatus which concerns on a modification. It is the schematic of the material supply apparatus which concerns on a modification. It is the schematic of the material supply apparatus which concerns on a modification.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<1. Configuration of material supply device>
First, the structure of the material supply apparatus 1 will be described. FIG. 1 is a schematic view of a material supply apparatus 1 according to an embodiment of the present invention. The material supply device 1 is a device that supplies a material stored in a storage hopper 2 that is a storage container for granular materials to a conveyance destination.

  Examples of powders handled in the material supply apparatus 1 include fine ceramics, metal materials, polymer materials, battery / electronic materials, composite materials, pharmaceutical materials, food materials, and various technologies such as electronics, energy, medical care, foods, etc. Mention may be made of inorganic and organic fine powders used in the field. However, the powder particles handled in the material supply apparatus 1 may be a mixture of a plurality of types of powders or particles, or may be a semi-solid material containing moisture. Moreover, although the particle size distribution of a granular material is about 0.1 micrometer-several dozen micrometer, for example, it is not limited to this.

  As shown in FIG. 1, the material supply device 1 includes a screw feeder 3, a dispersion pipeline 4, and an aerodynamic conveying device 5.

  The screw feeder 3 is a material discharging unit that discharges powder particles quantitatively using the rotation of the screw 33. The screw feeder 3 has a material intake port 31, a stirring unit 32, a screw 33, a discharge pipe 34, and a discharge port 35.

  The material intake 31 is connected to the lower side of the storage hopper 2. Thereby, a granular material is supplied to the stirring part 32 through the material intake 31 by the free fall from the storage hopper 2.

  The stirring unit 32 includes a stirring member 321 that rotates about a horizontally extending rotation axis. The granular material supplied to the stirring unit 32 is stirred by rotating the stirring member 321. Thereby, partial aggregation (bridge | bridging etc.) of a granular material is suppressed.

  The screw 33 is a member for conveying the granular material from below the stirring unit 32 to the discharge port 35. The screw 33 has a shaft 331 that extends substantially horizontally and a flight 332 that protrudes outward from the outer peripheral surface of the shaft 331. The flight 332 spirally surrounds the outer peripheral surface of the shaft 331. In the present embodiment, the shaft 331 and the flight 332 are formed of a single member.

  The discharge pipe 34 is a substantially cylindrical member that forms a conveying path for the granular material from below the stirring unit 32 to the discharge port 35. Below, the direction (direction shown with the solid line arrow in FIG. 1) which goes to the discharge port 35 from the downward direction of the stirring part 32 along the screw 33 is called "1st conveyance direction." The discharge pipe 34 is disposed substantially coaxially with the screw 33.

  The discharge port 35 is an end of the discharge pipe 34 on the downstream side in the first transport direction. The discharge port 35 is connected to the side wall of the dispersion pipe 4. Thereby, the granular material transported in the first conveying direction in the discharge pipe 34 is discharged into the dispersion pipe line 4 through the discharge port 35.

  In the present embodiment, the shaft 331 of the screw 33 extends from below the stirring unit 32 into the dispersion pipe 4 through the discharge pipe 34. An end portion of the shaft 331 on the downstream side in the first transport direction is rotatably fixed to a portion of the wall surface of the dispersion pipe 4 facing the discharge port 35. On the other hand, the flight 332 extends from below the stirring unit 32 to the vicinity of the discharge port 35. Note that the shaft 331 does not have to be fixed at the end on the downstream side in the first transport direction. In that case, the end portion of the shaft 331 on the downstream side in the first conveyance direction may be disposed in the vicinity of the discharge port 35, similarly to the flight 332.

  The dispersion pipeline 4 is a cylindrical member that extends vertically. A discharge pipe 34 is connected to an opening provided in the pipe wall of the dispersion pipe 4 to form a discharge port 35. The dispersion pipeline 4 has an air flow introduction port 41 disposed above the discharge port 35 and a connection port 42 that is a lower end portion of the dispersion pipeline 4. As a result, the granular material supplied from the screw feeder 3 to the dispersion pipeline 4 via the discharge port 35 falls from the discharge port 35 and is discharged from the connection port 42 to the pneumatic conveying device 5. Hereinafter, the direction from the discharge port 35 toward the connection port 42 along the inner wall of the dispersion pipe 4 (the direction indicated by the broken line arrow in FIG. 1) is referred to as a “second transport direction”.

  In this embodiment, the air flow inlet 41 is provided at the upper end of the dispersion pipeline 4. A filter 411 is connected to the airflow inlet 41. As a result, when an air flow is generated in the dispersion pipeline 4 from the top to the bottom, external air from which foreign matter has been removed by the filter 411 is introduced from the air flow inlet 41 into the dispersion pipeline 4.

  The aerodynamic conveyance device 5 is a device that conveys the granular material supplied from the dispersion pipeline 4 to the conveyance destination using the aerodynamic force. The pneumatic conveyance device 5 includes a conveyance pipeline 51, a supply hopper 52, and a blower 53.

  One end of the transfer pipeline 51 is connected to the connection port 42 of the dispersion pipeline 4, and the other end is connected to a supply port 521 described later of the supply hopper 52.

  The supply hopper 52 includes a supply port 521, a transport destination connection unit 522, and an exhaust port 523. The supply port 521 is connected in communication with the conveyance pipeline 51. The conveyance destination connection part 522 is provided in the lower end part of the supply hopper 52, and connects to conveyance destinations, such as a molding machine. The supply hopper 52 has a funnel-like shape that decreases below the supply port 521 as it goes downward. Thereby, the granular material supplied to the inside of the supply hopper 52 from the supply port 521 falls freely and is supplied from the conveyance destination connection part 522 to a conveyance destination.

  The exhaust port 523 is provided above the supply port 521. Thereby, it is suppressed that the granular material supplied from the supply port 521 enters the exhaust port 523. A suction port of the blower 53 is connected to the exhaust port 523.

  The blower 53 is an airflow generation device that generates an airflow by sucking gas from the suction port. The blower 53 is connected to the exhaust port 523 of the supply hopper 52 as described above. When the blower 53 is driven, the gas in the supply hopper 52 is sucked from the exhaust port 523.

<2. About movement of powder and gas>
Next, the movement of powder and gas in the material supply apparatus 1 will be described. FIG. 2 is a partial longitudinal sectional view of the material supply apparatus 1. In FIG. 2, as in FIG. 1, the first transport direction is indicated by a solid line arrow, and the second transport direction is indicated by a broken line arrow. In the material supply apparatus 1, the screw feeder 3 and the blower 53 are driven to start conveying the granular material.

  When the screw feeder 3 is driven, the stirring member 321 of the stirring unit 32 rotates and the screw 33 rotates. After the granular material supplied by free fall from the storage hopper 2 to the material intake port 31 is stirred inside the stirring unit 32, the powder is supplied to the clearance of the flight 332 of the screw 33 disposed below the stirring unit 32. Filled. When the screw 33 rotates, the granular material is pushed by the spiral flight 332 and conveyed to the inside of the discharge pipe 34. In addition, in the inside of the discharge pipe 34, the flights 332 rotate, so that the granular material is transported toward the discharge port 35 in the first transport direction.

  The granular material conveyed in the first conveying direction in the discharge pipe 34 is supplied from the discharge port 35 to the inside of the dispersion pipeline 4. Then, the granular material falls in the dispersion pipeline 4 and moves in the second conveyance direction, and travels from the connection port 42 to the conveyance pipeline 51.

  Inside the discharge pipe 34, the granular material is sandwiched in the first transport direction by the upstream portion of the flight 332 in the first transport direction and the downstream portion of the flight 332 in the first transport direction. And a granular material is pushed to the 1st conveyance direction upstream by the flight 332 which touches the 1st conveyance direction downstream. Thereby, a granular material is compressed by the 1st conveyance direction, and granular material adheres mutually.

  Thus, in the screw feeder 3 which is the discharge means in the present embodiment, the granular material in the discharge pipe 34 is filled into the discharge port 35 while filling the part including the discharge port 35 in the discharge pipe 34 with the powder. And moved. In the discharging means such as a screw feeder or a coil feeder that discharges the powder particles filled in the discharge pipe, the powder particles are particularly likely to adhere to each other in the vicinity of the discharge port 35.

  On the other hand, when the blower 53 is driven, the blower 53 sucks the gas in the supply hopper 52 through the exhaust port 523. Then, the air pressure from the connection port 42 toward the supply port 521 is generated in the transfer pipeline 51 due to a decrease in the atmospheric pressure in the supply hopper 52. As a result, the gas in the dispersion pipeline 4 is sucked into the conveyance pipeline 51, and the atmospheric pressure in the dispersion pipeline 4 decreases. Therefore, the gas is introduced from the airflow inlet 41 into the dispersion pipe 4.

  In this way, when the blower 53 is driven, the air flow introduction port 41 proceeds downward in the dispersion pipeline 4, passes through the conveyance pipeline 51 via the connection port 42, and then passes from the supply port 521 to the supply hopper 52. An air flow toward is generated.

  Below, the airflow produced in the dispersion | distribution pipe line 4 is called the airflow F, and it shows with the white arrow in FIG. As shown in FIG. 2, the airflow F contacts the discharge port 35. Thereby, the airflow F contacts the powder body supplied from the screw feeder 3 into the dispersion pipe 4 via the discharge port 35 in the vicinity of the discharge port 35. As a result, even when the granular material has a portion that is adhered to each other at the discharge port 35, the powder particles are dispersed in the vicinity of the discharge port 35 due to the airflow F contacting the discharge port 35. To do. Therefore, it is possible to prevent the powder particles from staying in the vicinity of the connection port 42 where the dispersion pipeline 4 and the conveyance pipeline 51 are connected or in the conveyance pipeline 51.

  In this embodiment, the 1st conveyance direction which is the moving direction of the granular material in the discharge pipe 35 vicinity in the discharge pipe 34 of the screw feeder 3 which is discharge means is a substantially horizontal direction. On the other hand, the direction of the air flow F acting on the discharge port 35 outside the screw feeder 3 is substantially vertical. That is, the direction of the airflow F is substantially orthogonal to the first transport direction.

  As described above, when the first conveying direction and the airflow F acting on the discharge port 35 intersect, the particles discharged from the discharge port 35 are easily dispersed. In this embodiment, since the 1st conveyance direction and the airflow F which acts on the discharge port 35 are orthogonal, the granular material discharged | emitted from the discharge port 35 is easy to disperse | distribute.

  Further, in the present embodiment, with the above configuration, the flow rate of the gas passing through the blower 53 and the flow rate of the gas passing through the dispersion pipe 4 at the connection point of the discharge port 35 are substantially the same. Thereby, the speed of the air flow F in the dispersion pipeline 4 in the vicinity of the discharge port 35 becomes an effective speed for dispersing the granular material. Therefore, the granular material discharged from the discharge port 35 is easily dispersed.

  And the granular material discharged | emitted from the discharge port 35 falls in the pipe line 4 for dispersion | distribution along the 2nd conveyance direction which goes to the downward direction from upper direction. The air flow F is in contact with the granular material while the granular material is falling in the dispersion pipeline 4. As a result, the powder particles are further dispersed by contacting the air flow F from the discharge port 35 to the connection port 42 and being exposed to the air flow F. Thereby, it is suppressed more that a granular material stays in the vicinity of the connection port 42 which is a connection location of the dispersion | distribution pipeline 4 and the conveyance pipeline 51, and in the conveyance pipeline 51. FIG.

  At this time, the air flow F is directed from the upper side to the lower side in the dispersion pipe 4 substantially in parallel with the second transport direction from the discharge port 35 toward the connection port 42. For this reason, from the discharge port 35 to the connection port 42, the fall speed of a granular material is accelerated by the airflow F and gravity. Thereby, a granular material tends to disperse | distribute further.

  Further, in the present embodiment, the dispersion pipeline 4 is reduced in diameter from the upper side to the lower side below the discharge port 35. Thereby, it accelerates as the airflow F goes to the downward direction from the upper direction. As a result, the dropping speed of the granular material is further accelerated from the discharge port 35 to the connection port 42. Therefore, the powder particles are more easily dispersed.

  As described above, the air flow F is generated in the dispersion pipe 4, whereby the powder discharged from the discharge port 35 is dispersed in the dispersion pipe 4. Thereby, it is suppressed that a granular material retains in the connection location of the pipeline 4 for dispersion | distribution, and the pipeline 51 for conveyance, and the pipeline 51 for conveyance.

<3. Modification>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

  FIG. 3 is a partial longitudinal sectional view of a material supply apparatus 1A according to a modification. In the example of FIG. 3, the flow area of the air flow inlet 41 </ b> A is smaller than the flow area of the dispersion pipe 4 </ b> A at the connection location of the discharge port 35 </ b> A. Thus, by reducing the flow path area of the airflow inlet 41A, the speed of the airflow FA from the airflow inlet 41A toward the dispersion pipe 4A can be increased.

  In addition, the airflow inlet 41A is disposed toward the outlet 35A. Thereby, even if the flow path area of the airflow introduction port 41A becomes small, the airflow FA can be reliably brought into contact with the discharge port 35A.

  Thus, by increasing the speed of the airflow FA that contacts the discharge port 35A, the powder particles are more easily dispersed in the vicinity of the discharge port 35A. Therefore, it is further suppressed that the granular material stays in the connecting portion between the dispersion pipeline 4A and the conveyance pipeline 51A or in the conveyance pipeline 51A.

  FIG. 4 is a schematic view of a material supply apparatus 1B according to another modification. In the example of FIG. 4, the dispersion airflow generator 6B is connected to the airflow inlet 41B. The dispersion airflow generator 6B includes a dispersion blower 61B and an airflow introduction pipe 62B.

  The dispersing blower 61B is an airflow generator that generates an airflow by discharging gas from its discharge port. The discharge port of the dispersion blower 61B is connected to one end of the air flow introduction pipe 62B. When the dispersing blower 61B is driven, external gas is sucked through the filter 611B provided at the suction port, and discharged to the inside of the airflow introduction pipe 62B. Thereby, the airflow which goes to the other end from the one end of the airflow introduction tube 62B is generated.

  The other end of the airflow introduction pipe 62B is connected to the airflow introduction port 41B. As a result, when the dispersion blower 61B is driven, an airflow is introduced from the dispersion blower 61B through the airflow introduction pipe 62B into the dispersion pipeline 4B from the airflow inlet 41B. Thereby, the said airflow contacts the discharge port 35B.

  As described above, the material supply device may include a dispersion airflow generation device that positively generates an airflow that contacts the discharge port.

  FIG. 5 is a schematic view of a material supply apparatus 1C according to another modification. In the example of FIG. 5, the upstream end of the conveyance pipeline 51C of the pneumatic conveyance device 5C is not connected to the connection port 42C of the dispersion pipeline 4C. An upstream end portion of the transfer pipeline 51C is a gas intake port 512C having a filter 511C. As a result, when the blower 53C is driven, an air flow from the gas intake port 512C toward the supply hopper 52C is generated inside the transfer conduit 51C.

  In the example of FIG. 5, the connection port 42 </ b> C of the dispersion pipeline 4 </ b> C is connected in the middle of the flow path of the transfer pipeline 51 </ b> C. Thereby, the granular material discharged | emitted from the discharge port 35C of the screw feeder 3C falls in the dispersion | distribution pipeline 4C, and is supplied in the conveyance pipeline 51C from the connection port 42C. And the said granular material is conveyed to the supply hopper 52C in the inside of the conveyance pipe 51C by the airflow produced in the pipeline 51C for conveyance.

  The air flow generated in the transfer pipeline 51C generates an air flow from the dispersion pipeline 4C through the connection port 42C into the transfer pipeline 51C due to the ejector effect. However, the airflow is very small compared to the airflow generated by the blower 53C. Therefore, only the air flow generated in the dispersion pipeline 4C due to the ejector effect has a small effect of dispersing the granular material in the dispersion pipeline 4C.

  Therefore, in the example of FIG. 5, as in the example of FIG. 4, the dispersing airflow generation device 6 </ b> C is connected to the airflow inlet 41 </ b> C. Thus, when the dispersing blower 61C is driven, the airflow generated from the dispersing blower 61C is positively introduced into the dispersing conduit 4C via the airflow introduction pipe 62C and the airflow introduction port 41C. As a result, an airflow that contacts the discharge port 35C is generated in the dispersion conduit 4C.

  As described above, even when the airflow generating means of the pneumatic conveying device 5C cannot generate a sufficient flow rate in the dispersion pipe 4C, the dispersion airflow generation device 6C is provided, so that the discharge port 35C can be used. The effect of dispersing the discharged granular material can be enhanced.

  FIG. 6 is a schematic view of a material supply apparatus 1D according to another modification. In the example of FIG. 6, the discharge port of the blower 53D of the aerodynamic conveyance device 5D is connected to the air flow introduction port 41D via the circulation pipe 54D and the filter 411D. Accordingly, the blower 53D sucks the gas in the transfer pipeline 51D and supplies the gas sucked from the transfer pipeline 51D to the air flow inlet 41D.

  Accordingly, in the example of FIG. 6, a closed space is formed by the dispersion pipeline 4D, the conveyance pipeline 51D, the supply hopper 52D, the blower 53D, and the circulation pipeline 54D. As described above, by forming the closed space, a gas other than the external air such as nitrogen gas is introduced into the dispersion pipe 4D, the transfer pipe 51D, the supply hopper 52D, the blower 53D, and the circulation pipe 54D. Easy to fill.

  For this reason, a granular material can be conveyed using inert gas, such as nitrogen gas. If it does so, alteration and deterioration of a granular material can be prevented.

  Moreover, in said embodiment, although the screw feeder was used as a discharge means, this invention is not this limitation. As the discharging means, a vibration feeder or a table feeder may be used.

  In the above-described embodiment, the dispersion pipeline extends in the vertical direction, but the present invention is not limited to this. For example, the dispersing pipe may be orthogonal to the horizontally extending discharge pipe and may extend horizontally.

  Further, the detailed structure of the supply device may be different from the structure shown in each drawing of the present application. For example, the conveyance pipe may be composed of a plurality of members. Moreover, you may combine suitably each element which appeared in said embodiment and modification in the range which does not produce inconsistency.

1, 1A, 1B, 1C, 1D Material supply device 2 Storage hopper 3, 3C Screw feeder 4, 4A, 4B, 4C, 4D Dispersion pipeline 5, 5C, 5D Aerodynamic conveying device 6B Dispersion airflow generator 6C Dispersion Airflow generator 33 Screw 34 Discharge pipe 35, 35A, 35B, 35C Discharge port 41, 41A, 41B, 41C, 41D Airflow inlet 42, 42C Connection port 51, 51A, 51C, 51D Conveyance pipeline 52, 52C, 52D Supply hopper 53, 53C, 53D Blower 54D Circulation piping 61B, 61C Dispersion blower 62B, 62C Air flow introduction pipe 512C Gas intake port F, FA Air flow

Claims (12)

A material supply device that supplies a material stored in a storage container to a transport destination,
A discharge means comprising a discharge port for discharging the material from the inside of the storage container;
An aerodynamic conveying means for conveying the material discharged from the discharge port by air; and
Have
The material supply apparatus which an airflow contacts with the said discharge port. The material supply device according to claim 1,
The material supply device in which the direction of the airflow acting on the discharge port outside the discharge unit intersects the moving direction of the material in the vicinity of the discharge port in the discharge unit. It is a material supply apparatus of Claim 1 or Claim 2, Comprising:
Further having a dispersion line extending from one side to the other side and connected to the discharge port;
The dispersion pipe has an air flow inlet arranged on the one side from the outlet,
A material supply device in which an airflow from the one side to the other side is generated inside the dispersion pipe. The material supply device according to claim 3,
The material supply device, wherein the dispersion pipe is reduced in diameter from the one side toward the other side on the other side of the discharge port. The material supply apparatus according to claim 3 or 4, wherein:
The air flow inlet is disposed toward the outlet,
The material supply device, wherein a flow passage area of the air flow introduction port is smaller than a flow passage area of the dispersion pipeline at a connection point of the discharge port. The material supply device according to any one of claims 3 to 5,
The material supply apparatus, wherein the dispersion pipe line extends from the upper side on the one side toward the lower side on the other side. The material supply device according to any one of claims 3 to 6,
The aerodynamic conveying means is
A transfer pipeline, one end of which is connected to the other end of the dispersion pipeline;
An airflow generator for generating an airflow from the one end to the other end of the transfer pipeline;
Have
The material supply apparatus in which the flow rate of the gas passing through the airflow generation device is substantially the same as the flow rate of the gas passing through the dispersion pipe at the connection point of the discharge port. The material supply device according to claim 7,
The air flow inlet is a material supply device that introduces gas from the outside into the dispersion pipe. The material supply device according to claim 7,
The airflow generation device is a material supply device that sucks the gas in the transfer pipeline and supplies the gas sucked from the transfer pipeline to the airflow inlet. The material supply device according to any one of claims 1 to 9,
The discharge means has a discharge pipe having the discharge port,
The discharge means moves the material in the discharge pipe to the discharge port while filling the material in at least a part including the discharge port in the discharge pipe. A material supply method for supplying a material stored in a storage container to a transport destination,
The material is discharged from the inside of the storage container through a discharge pipe,
The airflow contacts the outlet of the discharge pipe,
The material supply method, wherein the material is conveyed by aerodynamic force in at least a part of a conveyance path from the discharge port to the conveyance destination. It is a material supply method of Claim 11, Comprising:
The material supply method, wherein a direction of an airflow acting on the discharge port outside the discharge pipe intersects with a movement direction of the material in the vicinity of the discharge port in the discharge pipe.

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