Air Conveyor Device

Abstract

To provide an air conveyance device with good operability.SOLUTION: An air conveyance device according to the present invention comprises a housing which has: a housing body including a top surface part which has a feed opening for feeding powder or grains formed, and a side surface part where a discharge opening for discharging a multiphase flow of air and the powder or grains feed from the feed opening is formed; and a lid body closing the feed opening. The lid is fitted to the top surface part rotatably about an axis of rotation extending in a direction crossing an opening direction of the discharge opening in plan view.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an air conveying device. [Background technology]

[0002] Conventionally, there has been known an air conveying device used when loading granular materials such as wood pellets into a silo (see Patent Document 1). This air conveying device loads granular materials through an inlet provided in a housing and transports them using air supplied from an air supply source such as a blower.

[0003] This air conveying device is equipped with a housing having a housing body in which an inlet through which granules are fed is located, and a lid that covers the inlet, and when the air conveying device is not in use, the lid is attached to the housing body so as to cover the inlet. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-75788 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned air conveying device, when the pellets are transported (used), the pellets are fed through the feed port, so the lid is removed from the housing body. However, this removed lid requires a place to be placed, etc., and this place must be secured and the removed lid must be carried to the place, which makes it difficult to work.

[0006] Therefore, an object of the present invention is to provide an air conveying device that is easy to work with. [Means for solving the problem]

[0007] The air conveying device of the present invention is The apparatus comprises a housing having a housing body including a top surface portion in which an inlet through which an object to be transported is disposed and a side surface portion in which an outlet is disposed for discharging a multiphase flow of air and the object to be transported that has been injected from the inlet, and a lid that closes the inlet, The lid is attached to the top surface portion so as to be rotatable about a rotation axis that extends in a direction intersecting the opening direction of the outlet in a plan view.

[0008] With this configuration, the inlet can be opened and closed by rotating the lid about the rotation axis, so there is no need to find a place to store the removed lid or carry the removed lid to that place, as is the case with removable lids, which improves operability when using the air conveying device. Moreover, by having the operator stand in the direction of the rotation axis of the lid relative to the housing, it becomes easier to rotate the lid when opening and closing the inlet (i.e., the opening and closing of the inlet becomes easier), further improving operability.

[0009] The air conveying device of the present invention is The apparatus comprises a housing having a housing body including a top surface portion in which an inlet through which an object to be transported is disposed and a side surface portion in which an outlet is disposed for discharging a multiphase flow of air and the object to be transported that has been injected from the inlet, and a lid that closes the inlet, The lid is attached to the top surface portion so as to be rotatable about a rotation axis that extends in a direction toward the opening of the outlet in a plan view.

[0010] With this configuration, the inlet can be opened and closed by rotating the lid about the rotation axis, so there is no need to find a place to store the removed lid or carry the removed lid to that place, as is the case with removable lids, which improves operability when using the air conveying device. Moreover, by having the operator stand in the direction of the rotation axis of the lid relative to the housing, it becomes easier to rotate the lid when opening and closing the inlet (i.e., the opening and closing of the inlet becomes easier), further improving operability.

[0011] The air conveying device of the present invention is The container has a housing body including a top surface portion in which an inlet through which an object to be transported is disposed, and a lid that covers the inlet and is attached to the top surface portion so as to be rotatable about a rotation axis that extends along a horizontal direction, The insertion port is disposed at a position offset to one side of the top surface portion in a direction perpendicular to the rotation axis in a plan view, The pivot shaft is disposed at the opening periphery of the insertion port and at the other edge of the lid in the orthogonal direction when the insertion port is closed.

[0012] In this way, the lid that covers the insertion port, which is located at a position biased to one side of the top surface, is configured to rotate around a pivot axis located on the edge on the other side of the lid to open the insertion port, thereby reducing the amount of protrusion (amount of projection) of the lid from the top surface when opened (see symbol α in Figure 8), making it easier to work around the housing (i.e., improving workability).

[0013] In the air conveying device, the housing has a hinge that rotatably connects the lid to the top surface portion, and a fastening member that fixes the hinge to the top surface portion, The top surface portion has a vertical wall extending along the up-down direction, It is preferable that the fastening member fixes the hinge to the vertical wall in a state where the fastening member penetrates through the vertical wall and the hinge overlapping the vertical wall.

[0014] In this way, by configuring the fastening member to penetrate the vertical wall extending in the up-down direction and the hinge overlapping the vertical wall in the direction of their overlap, water is less likely to accumulate in the vertical wall or between the vertical wall and the hinge, thereby preventing rainwater and other liquids from entering the housing through the penetration points of the fastening member.

[0015] Further, the air conveying device a rotary valve having an impeller that rotates around a rotation axis extending horizontally and disposed below the inlet in the housing; a hopper connecting the inlet and the rotary valve; The impeller may further include a dispersion member disposed above the rotation axis of the impeller in the hopper and extending in the direction of the rotation axis.

[0016] In this way, by arranging the dispersion member above the rotation axis of the impeller inside the hopper, the flow of the transported material that has been introduced through the inlet and accumulated in the hopper and that is directed toward the impeller is dispersed so as to avoid the dispersion member (see arrow β in Figure 10), thereby preventing clogging of the transported material inside the hopper that would otherwise occur if the transported material in the hopper were to flow overall toward the impeller. [Effects of the Invention]

[0017] As described above, according to the present invention, an air conveying device with good workability can be provided. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of the air conveying device according to this embodiment, seen from the front side. [Figure 2] FIG. 2 is a perspective view of the air conveying device as seen from the rear side. [Figure 3] FIG. 3 is a rear view of the air conveying device with the rear wall portion removed. [Figure 4] FIG. 4 is a left side view of the air transfer device with part of the left wall portion omitted. [Figure 5] FIG. 5 is a right side view of the air transfer device with part of the right wall portion omitted. [Figure 6] FIG. 6 is a front view of the air transfer device with a portion of the front wall portion omitted. [Figure 7] FIG. 7 is a perspective view of the air conveying device with the cover open, seen from the front side. [Figure 8] FIG. 8 is an enlarged front view of the upper wall and the periphery of the lid with the lid open. [Figure 9] FIG. 9 is an enlarged cross-sectional view of the connection position between the lid and the upper wall portion. [Figure 10]FIG. 10 is a vertical cross-sectional view for explaining the configuration of the hopper and the rotary valve. [Figure 11] FIG. 11 is a diagram showing an example of the air conveying device in use. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

[0020] The air conveying device is used, for example, to transport wood pellets (carried objects) into a silo that stores the pellets and that are used as a heat source for heating devices in cold regions, but it can also be used to transport objects that can be transported by air to a predetermined location. The objects to be transported include wood pellets, non-wood pellets (resin pellets), as well as various powders or granules that can be transported by air currents, such as livestock feed and hay.

[0021] 1 to 7, the air conveying device 1 includes a housing 2 in which various components are arranged. The housing 2 also includes an air supply source 3, a motor 4, an air blower duct 5, a hopper 6, a rotary valve 7, a dispersion member 8 (see FIG. 10), a multiphase mixer 9, and the like.

[0022] The housing 2 has a housing main body 20 including an upper wall portion (top surface portion) 25 where an inlet 6A through which the transported object is introduced is located, and a left wall portion (side surface portion) 23 where an outlet 50B is located for discharging a multiphase flow of air and the powder or granular transported object introduced through the inlet 6A is located, and a lid 27 that closes the inlet 6A. The housing 2 of this embodiment also has at least one hinge 28 that rotatably connects the lid 27 to the upper wall portion 25, and at least one fastening member 29 that fixes the hinge 28 to the upper wall portion 25.

[0023] Specifically, the housing main body 20 has a substantially cubic shape and has a front wall 21, a rear wall 22, a left wall 23, a right wall 24, an upper wall 25, and a lower wall 26. In the following description, the side where the front wall 21 is located will be referred to as the front side, the side where the rear wall 22 is located will be referred to as the rear side, the side where the left wall 23 is located will be referred to as the left side, the side where the right wall 24 is located will be referred to as the right side, the side where the upper wall 25 is located will be referred to as the upper side, and the side where the lower wall 26 is located will be referred to as the lower side.

[0024] The front wall portion 21, rear wall portion 22, left wall portion 23, and right wall portion 24 that constitute the peripheral side walls of the housing main body 20 are each rectangular. Each of the front wall portion 21, rear wall portion 22, left wall portion 23, and right wall portion 24 has a pair of fork pockets Z at its lower end. The pair of fork pockets Z are holes into which the fork tines of a forklift are inserted to lift the air conveying device 1.

[0025] The front wall 21 also has a door 21D that can be opened and closed, and a control panel is disposed inside the door 21D. On the control panel, for example, a main power supply for the air conveying device 1, an emergency stop button, an activation button for the air supply source 3, an operation button for the rotary valve 7, an operation start button, a stop button, etc. are disposed, and by opening the door 21D, an operator or the like can operate the various buttons on the control panel. In this embodiment, the door 21D is disposed at the upper left end of the front wall 21.

[0026] Here, the emergency stop button is a button used to simultaneously stop the air supply source 3 and the rotary valve 7, and the operation button for the air supply source 3 (ON / OFF for the air supply source 3 alone) and the operation button for the rotary valve 7 (ON / OFF and reverse rotation for the rotary valve 7 alone) are buttons used when the rotary valve 7 is clogged. Furthermore, when the operation start button is operated, the air supply source 3 starts to operate, and then the rotary valve 7 starts to operate with a delay. Furthermore, when the stop button is operated, the air supply source 3 stops with a delay after the rotary valve 7 stops. The reason the air supply source stops with a delay after the rotary valve stops is that air continues to be sent for a while after the supply of the conveyed material has stopped, thereby eliminating any remaining conveyed material in the air supply duct 5 and the hose H (see FIG. 11) connected to the outlet 50B of the air conveying device 1.

[0027] The left wall 23 also has an openable door 23D, and an outlet 50B is disposed inside the door 23D. The outlet 50B is an opening through which a multiphase flow of the transported material and air is discharged, and opens toward the left side. In this embodiment, the outlet 50B is formed by an end opening of the air duct 5. The door 23D in this embodiment is disposed at the lower end and front end of the left wall 23.

[0028] The upper wall portion 25 is rectangular, and has the insertion port 6A disposed therein (in other words, the insertion port 6A is open). Specifically, the insertion port 6A is disposed in the upper wall portion 25 at a position closer to the right side and closer to the front. The insertion port 6A in this embodiment is rectangular, and is configured by the upper end opening of the hopper 6. The upper wall portion 25 also has at least one protrusion 25T that protrudes upward at a position corresponding to the lid 27 in the front-to-rear direction at the left end. The upper wall portion 25 in this embodiment has two protrusions 25T spaced apart in the front-to-rear direction.

[0029] Additionally, upper wall portion 25 has groove portion 250 around insertion opening 6A (see FIG. 7). Groove portion 250 is provided along insertion opening 6A and has inner wall 251, outer wall 252, and bottom wall 253 connecting the lower end of inner wall 251 and the lower end of outer wall 252 (see FIG. 9). Groove portion 250 of this embodiment has a shape (rectangular) corresponding to insertion opening 6A in a plan view, and inner wall 251 and outer wall 252 are each vertical walls extending in the up-down direction.

[0030] Lid 27 is attached to upper wall 25 so as to be rotatable about a rotation axis extending in a direction intersecting the opening direction of outlet 50B in plan view. Lid 27 of this embodiment is attached to upper wall 25 so as to be rotatable about rotation axis 28C extending in a direction (front-rear direction) perpendicular to the opening direction (left-right direction) of outlet 50B in plan view.

[0031] Specifically, lid 27 has a closing portion 271 in the shape of a rectangular plate (i.e., a plate corresponding to insertion port 6A) and a peripheral wall portion 272 extending from the periphery of closing portion 271. Peripheral wall portion 272 of lid 27 is connected by two hinges 28 to the opening periphery of insertion port 6A in upper wall portion 25, more specifically, to the outer wall 252 of groove portion 250. Lid 27 of this embodiment is connected to outer wall 252 at a portion of groove portion 250 that corresponds to the left edge of rectangular insertion port 6A (a portion extending in the front-rear direction).

[0032] At the connection position of the lid 27 with the upper wall portion 25, the fastening member 29 fixes the hinge 28 to the outer wall 252 in a state in which the fastening member 29 penetrates the outer wall 252 and the blade (hinge piece) 281 of the hinge 28 that overlaps the outer wall 252. The fastening member 29 in this embodiment is composed of a screw 29A and a nut 29B, and the screw 29A penetrates the outer wall 252 and the blade 281 that are overlapping each other in the left-right direction (overlapping direction).

[0033] Also, at the connection position between the lid 27 and the hinge 28, similar to the connection position between the lid 27 and the upper wall portion 25 of the lid 27, the fastening member 29 penetrates through the peripheral wall portion 272 of the lid 27 and the blade 281 of the hinge 28 that overlaps the peripheral wall portion 272, thereby fixing the hinge 28 to the peripheral wall portion 272.

[0034] When the lid 27 connected to the upper wall portion 25 by the two hinges 28 is closed (as shown in Figure 1), the peripheral wall portion 272 is fitted into the groove portion 250 along the insertion port 6A, more specifically, the peripheral wall portion 272 is positioned between the inner wall 251 and the outer wall 252, and the blocking portion 271 is slightly spaced from or abuts the opening end 60A of the insertion port 6A (see Figure 9).

[0035] The lid 27 rotates from a closed state around the pivot 28C of the hinge 28 to an open state (the state shown in FIG. 7). In this embodiment, the lid 27 rotates to a position where it abuts against the protrusion 25T protruding upward from the upper wall 25, as shown in FIG. 8. At this time, the insertion slot 6A is positioned to one side (the right side) of the upper wall 25 in the left-right direction (the direction perpendicular to the pivot 28C in a plan view), and the pivot 28C is positioned in the groove 250 (the opening periphery of the insertion slot 6A) on the left side (the other side) edge of the lid 27 in the closed state. Therefore, the amount of protrusion (protrusion) α of the lid 27 from the upper wall 25 when opened (when the insertion slot 6A is released) is reduced.

[0036] 3 to 6, the air supply source 3 is driven by a motor 4 disposed within the housing 2, and applies pressure to air to send it out as an airflow. The air supply source 3 in this embodiment is a blower. A silencer 11 for noise suppression is connected to the air supply source 3 via an intake pipe 10 that draws in air, and the air supply source 3 sends out the air sucked through the intake pipe 10 to an air supply pipe 5 connected to an outlet (exhaust port). In the air conveying device 1 of this embodiment, the air supply source 3 is disposed on the right rear side of the lower part within the housing 2, the motor 4 is disposed on the left rear side of the lower part within the housing 2, and the silencer 11 is disposed above the motor 4 within the housing 2. A transmission belt (not shown) is wound around a drive pulley 4A of the motor 4 and a driven pulley 3A of the air supply source 3, and the driving torque of the drive pulley 4A of the motor 4 is transmitted to the driven pulley 3A of the air supply source 3 via the transmission belt to drive the air supply source 3.

[0037] The air duct 5 guides the air sent from the air supply source 3 to the outside of the housing 2. The air duct 5 of this embodiment has a first pipe section 5A connecting the air supply source 3 and the multiphase unit 9, and a second pipe section 5B extending from the multiphase unit 9 toward the outside of the housing 2. Specifically, the first pipe section 5A is a pipe that is approximately U-shaped in plan view, extending from an outlet at the right end of the air supply source 3 to the right end within the housing 2, then bending 90 degrees to extend diagonally downward and forward, bending again 90 degrees to extend to the left within the housing 2, and connecting to the air supply port 9A of the multiphase unit 9. The second pipe section 5B is a straight pipe with one end connected to the outlet 9C of the multiphase unit 9 and the other end extending to the left end within the housing 2.

[0038] The first pipe 5A may be composed of one pipe or a plurality of pipes (any number of two or more). The housing 2 is provided with the above-mentioned door 23D at a position (the front side of the lower end of the left wall 23 of the housing 2) corresponding to the other end (discharge outlet 50B) of the second pipe 5B, and by opening this door 23D, one end of a hose H (see FIG. 11) for pneumatically conveying the object can be connected to the other end (discharge outlet 50B) of the second pipe 5B.

[0039] As shown in Figures 7 and 10, the hopper 6 is a cylindrical member that is open at the top and bottom, and is a portion (or member) that connects an inlet 6A for the transported object to the rotary valve 7. Specifically, the upper opening of the hopper 6 is the inlet 6A through which the transported object is introduced into a flexible container bag B (see Figure 11) that is flexible and made of, for example, cloth or synthetic resin, and the lower opening is the outlet 6B for discharging the introduced object. The upper opening (inlet) 6A of the hopper 6 is the inlet for the transported object in the air conveying device 1. The hopper 6 of this embodiment has a rectangular cross section and is configured so that the cross-sectional area decreases toward the bottom.

[0040] The hopper 6 also has a horizontally extending mesh member 61 at a vertically intermediate position inside the hopper 6. The mesh member 61 allows the conveyed objects to pass through, but also blocks foreign objects (objects other than the conveyed objects) larger than the conveyed objects from entering the rotary valve 7.

[0041] The rotary valve 7 adjusts the amount of material fed into the hopper 6 and sends it out to the multiphase mixer 9 (see FIG. 6), and is disposed below the hopper 6 (i.e., below the feed port 6A). In the air conveying device 1 of this embodiment, the rotary valve 7 and the multiphase mixer 9 constitute a multiphase flow forming unit that forms a multiphase flow of the material and air.

[0042] Specifically, the rotary valve 7 has a casing 7K that receives the material from the hopper 6, a rotary shaft 7A that extends horizontally (left and right in this embodiment) below the casing 7K, and an impeller 7B that rotates together with and around the rotary shaft 7A. The impeller 7B has a plurality of blades 7C (eight in this embodiment) that protrude radially and are equally spaced circumferentially from the outer periphery of the rotary shaft 7A. The rotary shaft 7A of the rotary valve 7 is driven to rotate by a motor M (see FIG. 5).

[0043] The dispersion member 8 is a member that distributes (diverges) the flow of materials being conveyed toward the impeller 7B of the rotary valve 7 within the hopper 6 (see arrow β in FIG. 10). The dispersion member 8 is disposed above the rotation shaft 7A of the impeller 7B and extends in the direction of the rotation shaft 7A. Specifically, the dispersion member 8 is disposed between the mesh member 61 and the impeller 7B of the rotary valve 7 in the vertical direction; in other words, at a position spaced apart from the rotating impeller 7B so as not to come into contact with the impeller 7B. The dispersion member 8 of this embodiment is disposed near the upper end opening of the casing 7K of the rotary valve 7 (i.e., near the discharge port 6B of the hopper 6). The dispersion member 8 extends from one inner surface to the other inner surface in the left-right direction within the hopper 6 and is a rod-shaped member with a triangular cross section at each position in the longitudinal direction.

[0044] The multiphase machine 9 is a section where a multiphase flow of air supplied from the air supply source 3 and the transported material introduced through the inlet 6A of the hopper 6 is formed. Specifically, as shown in FIG. 6 , the multiphase machine 9 is a box-shaped body having a substantially rectangular parallelepiped shape, and has a receiving port 9B that opens in the vertical direction to receive the transported material discharged from the hopper 6 via the rotary valve 7, an air supply port 9A that opens in the horizontal direction to supply air from the first pipe section 5A of the air supply duct 5 to the transported material received through the receiving port 9B, and a discharge port 9C that opens in the horizontal direction to discharge the transported material (more specifically, the multiphase flow of air and the transported material) transported by the air from the air supply port 9A. That is, the multiphase machine (box-shaped body) 9 has the receiving port 9B formed on the top wall, the air supply port 9A formed on the right wall, and the discharge port 9C formed on the left wall.

[0045] The air conveying device 1 configured as described above is used, for example, as shown in Fig. 11, while being placed on the bed of a truck T or the like when transporting an object housed in a flexible container bag B into a silo S. At this time, the air conveying device 1 is placed on the bed so that the front wall 21 and the rear wall 22 of the housing 2 face the width direction of the truck T, so that the hose H connecting the inlet S1 of the silo S and the air conveying device 1 can be easily connected. That is, the air conveying device 1 is placed on the bed of the truck T with the door 23D of the left wall 23 open so that the discharge outlet 9C (opening direction) of the second pipe section 5B faces the width direction of the truck T.

[0046] When the air conveying device 1 is placed on the loading platform in this manner, it is difficult or impossible to secure a space on the loading platform for an operator to stand adjacent to the air conveying device 1 in the vehicle width direction. For this reason, an operator who performs work such as loading an object from a flexible container bag B into the loading port 6A usually performs the work while standing in a position facing the left wall portion 23 or the right wall portion 24. In the air conveying device 1 of this embodiment, the lid 27 is positioned closer to the left wall portion 23 than the right wall portion 24, so the operator performs work such as loading an object while standing in a position facing the left wall portion 23.

[0047] The air conveying device 1 described above includes a housing 2 having a housing main body 20 including an upper wall portion (top surface portion) 25 where an inlet 6A through which an object to be conveyed is disposed and a left wall portion (side surface portion) 23 where an outlet 9C for discharging a multiphase flow of air and the object to be conveyed introduced through the inlet 6A is disposed, and a lid 27 that closes the inlet 6A. The lid 27 is attached to the upper wall portion 25 so as to be rotatable about a rotation axis 28C that extends in a direction (left-right direction) perpendicular to the opening direction of the outlet 9C in a plan view.

[0048] With this configuration, the insertion port 6A can be opened and closed by rotating the lid 27 around the rotation axis 28C, so there is no need to secure a place to store the removed lid or carry the removed lid to the place, as is the case with removable lids. This improves the operability when using the air transport device 1.

[0049] Furthermore, when the air conveying device 1 is loaded onto the bed of the truck T so that the left wall 23 and right wall 24 of the housing 2 face the vehicle width direction as described above, an operator can stand in the direction of the pivot axis of the lid 27 relative to the housing 2 (for example, standing opposite the front wall 21), and when opening or closing the inlet 6A, the end of the lid 27 opposite the pivot axis 28C is rotated so as to move left and right relative to the operator in a plan view (in the direction connecting the left wall 23 and the right wall 24), making it easier to open and close the lid 27 (i.e., making it easier to open and close the inlet 6A), thereby further improving workability.

[0050] Furthermore, in the air conveying device 1 of this embodiment, the rotation axis 28C of the lid 27 is configured to extend in a direction (left-right direction) connecting the left wall portion 23 on which the control panel is located and the right wall portion 24 on the opposite side thereof. Therefore, when an operator stands facing the front wall portion 21 of the housing 2 to perform work, the air conveying device 1 is easy to operate (easy access to the control panel) and the lid 27 can also be easily opened and closed.

[0051] Furthermore, in the air conveying device 1 of this embodiment, the inlet 6A is positioned at a position biased to one side (towards the rear wall 22) of the upper wall 25 in a direction perpendicular to the rotation axis of the lid 27 in a planar view (the direction connecting the front wall 21 and the rear wall 22), and the rotation axis of the lid 27 is positioned at the opening periphery of the inlet 6A (in the example of this embodiment, the groove 250) and at the edge of the other side (towards the front wall 21) of the lid 27 in the perpendicular direction when the inlet 6A is closed.

[0052] In this way, lid 27, which covers slot 6A located at a position biased toward one side (rear wall 22 side) of upper wall 25 in the front-to-rear direction, is configured to rotate about pivot 28C located on the edge of the other side (front wall 21) of lid 27 in the front-to-rear direction to open slot 6A. This configuration reduces the amount of protrusion (protrusion) α of lid 27 from upper wall 25 when opened (see FIG. 8 ). That is, if slot 6A were located at the same position on upper wall 25 and the pivot of lid 27 were located at the end of the opposite side (the one side: rear wall 22 side) of lid 27, lid 27 would protrude significantly from housing 2 when opened, interfering with work around housing 2. However, with the above configuration, the amount of protrusion when lid 27 is opened is effectively reduced. This makes it easier to work around housing 2 (i.e., improves workability).

[0053] Furthermore, in the air conveying device 1 of this embodiment, the housing 2 has a hinge 28 that rotatably connects the lid 27 to the upper wall portion 25, and a fastening member 29 that fixes the hinge 28 to the upper wall portion 25. The upper wall portion 25 has an outer wall (vertical wall) 252 that extends along the up-down direction. The fastening member 29 (more specifically, a screw 29A) fixes the hinge 28 to the outer wall 252 in a state where it penetrates through the outer wall 252 and the hinge 28 (more specifically, the blades 281) that overlap the outer wall 252 (see FIG. 9).

[0054] In this way, by configuring the fastening member 29 (screw 29A) to penetrate the outer wall 252 extending in the vertical direction and the hinge 28 (blade 281) overlapping the outer wall 252 in the direction of overlap (horizontal direction), water is less likely to accumulate on the outer wall 252 or between the outer wall 252 and the hinge 28, etc., and therefore rainwater and the like are prevented from entering the housing 2 through the penetration portion of the fastening member 29.

[0055] The air conveying device 1 of this embodiment also includes a rotary valve 7 having an impeller 7B rotating around a horizontally extending rotation axis 7A and disposed in a multiphase flow forming section below the inlet 6A in the housing 2, a hopper 6 connecting the inlet 6A and the rotary valve 7, and a dispersion member 8 disposed above the rotation axis 7A of the impeller 7B in the hopper 6 and extending in the direction of the rotation axis 7A. By disposing the dispersion member 8 above the rotation axis 7A of the impeller 7B in the hopper 6, the flow of the materials introduced through the inlet 6A and accumulated in the hopper 6 toward the impeller 7B is dispersed (branched) so as to avoid the dispersion member 8 (see arrow β in FIG. 10 ). This prevents clogging of the materials in the hopper 6 due to the materials generally flowing toward the impeller 7B.

[0056] The air conveying device of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, or part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Furthermore, part of the configuration of one embodiment can be deleted.

[0057] In the air conveying device 1 of the above embodiment, the lid 27 is rotatable around the rotation axis 28C extending in a direction (left-right direction) perpendicular to the opening direction of the discharge port 9C in a plan view, but is not limited to this configuration.

[0058] The rotation shaft 28C of the lid 27 may extend, for example, in a direction (left-right direction) that intersects with the opening direction of the discharge port 9C in a plan view.

[0059] Furthermore, pivot shaft 28C of lid 27 may extend in the opening direction of discharge outlet 9C in a plan view. Even with this configuration, because insertion opening 6A can be opened and closed by rotating lid 27 about pivot shaft 28C, there is no need to secure a place to place the removed lid or carry the removed lid to the place, as is the case with a removable lid, thereby improving operability when using air conveying device 1. In this case, by standing in the direction of pivot shaft 28C of lid 27 relative to housing 2 (for example, in a position facing rear wall portion 22), it becomes easier to rotate the lid when opening and closing insertion opening 6A (i.e., the opening and closing operation of the insertion opening becomes easier), further improving operability.

[0060] Furthermore, in the air conveying device 1 of the above embodiment, the dispersion member 8 is disposed inside the hopper 6, but this configuration is not limited thereto. The hopper 6 may have a configuration in which no dispersion member is disposed inside. Furthermore, the specific shape of the cross section of the dispersion member 8 is not limited thereto. The cross section may have any shape that can disperse the flow of the conveyed material into multiple parts. Furthermore, the cross section shape of the dispersion member 8 may be different at each position in the longitudinal direction.

[0061] The housing 2 of the air conveying device 1 in the above embodiment has a substantially cubic shape, but is not limited to this configuration. The housing 2 may have a polygonal pillar shape, a cylindrical shape, or the like that extends in the vertical direction. [Explanation of symbols]

[0062] 1...air conveying device, 2...casing, 20...casing body, 21...front wall portion, 21D...door, 22...rear wall portion, 23...left wall portion, 23D...door, 24...right wall portion, 25...upper wall portion (top surface portion), 25T...convex portion, 250...groove portion, 251...inner wall portion, 252...outer wall portion (side portion), 253...bottom wall, 26...lower wall portion, 27...lid, 271...closing portion, 272...peripheral wall portion, 28...hinge, 28C...rotating shaft, 281...wing (hinge piece), 29...fastening member, 29A...screw, 29B...nut, 3...air supply source, 3A...driven pulley, 4...motor, 4A...drive Pulley, 5...air duct, 5A...first pipe section, 5B...second pipe section, 50B...discharge port, 6...hopper, 6A...feed port, 6B...discharge port, 60A...open end, 61...mesh member, 7...rotary valve, 7A...rotating shaft, 7B...impeller, 7C...impeller, 7K...casing, 8...dispersion member, 9...multiphase machine, 9A...air supply port, 9B...receiving port, 9C...discharge port, 10...intake pipe, 11...silencer, B...flexible container bag, H...hose, M...motor, S...silo, S1...feed port, T...truck, Z...fork pocket

Claims

1. The container has a housing body including a top surface portion in which an inlet through which an object to be transported is disposed, and a lid that covers the inlet and is attached to the top surface portion so as to be rotatable about a rotation axis that extends along a horizontal direction, The insertion port is disposed at a position offset to one side of the top surface portion in a direction perpendicular to the rotation axis in a plan view, The air conveying device, wherein the rotation axis is disposed at the peripheral edge of the opening of the inlet and at the other edge of the lid in the perpendicular direction when the inlet is closed.

2. the housing includes a hinge that rotatably connects the lid to the top surface portion, and a fastening member that fixes the hinge to the top surface portion, The top surface portion has a vertical wall extending along the up-down direction, The air conveying device according to claim 1 , wherein the fastening member fixes the hinge to the vertical wall in a state where the fastening member penetrates through the vertical wall and the hinge overlapping the vertical wall.

3. The apparatus comprises a housing having a housing body including a top surface portion in which an inlet through which an object to be transported is disposed and a side surface portion in which an outlet is disposed for discharging a multiphase flow of air and the object to be transported that has been injected from the inlet, and a lid that closes the inlet, the lid is attached to the top surface portion so as to be rotatable about a rotation axis extending in a direction intersecting an opening direction of the outlet in a plan view, the housing includes a hinge that rotatably connects the lid to the top surface portion, and a fastening member that fixes the hinge to the top surface portion, The top surface portion has a vertical wall extending along the up-down direction, The fastening member fixes the hinge to the vertical wall in a state where the fastening member penetrates through the vertical wall and the hinge overlapping the vertical wall.

4. The apparatus comprises a housing having a housing body including a top surface portion in which an inlet through which an object to be transported is disposed and a side surface portion in which an outlet is disposed for discharging a multiphase flow of air and the object to be transported that has been injected from the inlet, and a lid that closes the inlet, the lid is attached to the top surface portion so as to be rotatable about a rotation axis extending in a direction in which the outlet is opened in a plan view, the housing includes a hinge that rotatably connects the lid to the top surface portion, and a fastening member that fixes the hinge to the top surface portion, The top surface portion has a vertical wall extending along the up-down direction, The fastening member fixes the hinge to the vertical wall in a state where the fastening member penetrates through the vertical wall and the hinge overlapping the vertical wall.

5. a rotary valve having an impeller that rotates around a rotation axis extending horizontally and disposed below the inlet in the housing; a hopper connecting the inlet and the rotary valve; The air conveying device according to any one of claims 1 to 4, further comprising: a dispersion member disposed above the rotation axis of the impeller in the hopper and extending in the direction of the rotation axis.

Images