JP2014028685A - Transport device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge an installation space in the vertical direction of a tank of a transported material separator.SOLUTION: A transported material transporting cylinder 1A is connected to an entrance port 22 provided in a tank 20, and an exhaust cylinder 1B is connected to an exhaust port 23. The tank 20 is formed to have a relatively large volume with respect to the internal diameter of the transported material transporting cylinder 1A to attenuate transporting air from the transported material transporting cylinder 1A so that transported materials T can be separated. A transported material leading body 40, which leads from the entrance port 22 to the below of the tank 20, is provided in the tank 20. A relaxation device 50 is provided at the lower end of the transported material leading body 40. The transported material leading body 40 is formed separately from the transported material transporting cylinder 1A and the tank 20. A predetermined distance G is provided between the starting end of the transported material leading body 40 and the entrance port 22 in the entering direction of the transporting air.

Description

  The present invention relates to a conveying apparatus and a conveying method for conveying an object to be conveyed such as feed, buckwheat, soybean, azuki beans, and rice wheat.

Conventionally, a transport cylinder that transports objects to be transported by air is connected to the upper side of a cylindrical tank, and an exhaust port that exhausts air in the tank is formed in the center of the upper part of the tank. A separation device that puts an object in a vortex, sucks and exhausts air upward and drops an object to be conveyed downward is known as a cyclone (Patent Document 1).
In addition, conventionally, an inflow cylinder and an exhaust cylinder are connected to a side surface of a rectangular tank, and a transported object derivative that guides and converts the moving direction of a transport object entering from the lateral direction into the tank so as to be below the tank. The structure provided with is known by the same applicant (Patent Document 2).

Japanese Patent Laid-Open No. 05-104033 JP 2009-208936 A

Among the known examples, the former cyclone type separation device is configured to separate by centrifugal force by blowing the object to be conveyed together with the conveying air from the side into the tank to create the vortex of the conveying air, so that the conveying air can be as much as possible. Try to blow without decompression.
Since the conveying air is blown without being depressurized and separated by centrifugal force, the object to be conveyed always drops and discharges while strongly sliding on the inner periphery of the tank, and when the object to be conveyed is a grain, There is a problem that the surface is damaged to reduce the commercial value, and crushed particles are generated.
In addition, since the object to be conveyed is drawn below the tank and the conveying air is drawn above the tank, there is a problem that the height of the entire tank becomes high.
In addition, since a rising vortex is generated in the center of the tank, the vortex flows in the tank so that the vortex is always drawn upward while the blower is operating, and a part of the object to be transported is not discharged into the tank. There is also a problem that a residue called a “floating residue phenomenon” that floats and becomes a residue is generated by those skilled in the art.
Among the known examples, the latter separation device solves the problem of the former known example that suppresses the generation of vortex flow in the tank and damages the object to be transported, but the derivative is attached to the entrance. Therefore, it was found that the conveying wind entering from the entrance entrance once went downward and then separated to the left and right sides and headed to the exhaust port.
Moreover, the subject that dust adhered to the inner surface including the four corners in the rectangular tank was discovered.
The present application further improves the separation between the object to be transported and the transport air in the tank, and further suppresses the adhesion of deposits to the inner surface of the tank, and further reduces the installation space in the vertical direction. The restriction is reduced, and a plurality of the conveyed product separation devices can be efficiently installed.

According to the first aspect of the present invention, the tension hopper 10 and the blower 2 are connected to the transport cylinder 1 that is connected to the air intake portion of the blower 2 and transports the transport object T by the suction transport wind. The transport cylinder 1 is provided with a transport object separating device 16 for separating the transport object T from the tension hopper 10 from the transport air. The transport object separating device 16 is provided in a rectangular tank 20. Connected to the entrance 22 is a conveyed product transfer cylinder 1A of the transfer cylinder 1, and connected to an exhaust port 23 for exhausting air in the tank 20 is an exhaust cylinder 1B of the transfer cylinder 1. The tank 20 is formed to have a relatively large volume with respect to the inner diameter of the transported object transport cylinder 1A, and the transport air entering from the transported object transport cylinder 1A is attenuated to separate the transported air and the transport object T. The tank 20 has a tank from the entrance 22 to the tank 20. A transport object derivative 40 is provided to guide the moving direction of the transport object T entering the lateral direction into the lower side of the tank 20, and the transport object T falls in the tank 20 below the transport object derivative 40. A mitigation device 50 having a thin funnel body 51 is provided as it goes downward to alleviate the shock, and the conveyed product derivative 40 is composed of a pair of left and right vertical plate portions 41 and a connecting portion connecting portion that connects the left and right vertical plate portions 41. 42 is formed in a U-shaped cross-section, and is formed separately from the conveyed product conveyance cylinder 1A and the tank 20, and the conveyance wind is formed between the starting end of the conveyed product derivative 40 and the entrance 22. The conveying device is provided with a predetermined gap G in the approach direction.
According to a second aspect of the present invention, the entrance 22 and the exhaust port 23 are provided so as to be linearly opposed to each other, and a cross-sectional area gradually increases between the terminal end of the transported article transport cylinder 1A and the entrance 22. An expanding inflow horizontal cylinder 33 is provided, the lateral width of the entrance 22 is formed larger than the inner diameter of the transported object transport cylinder 1A, and the starting end of the transported material derivative 40 is substantially the same as the lateral width of the entrance 22 The funnel body 51 is formed so as to be narrower and narrower as it reaches the exhaust port 23 side, and the left and right widths of the funnel body 51 are narrower than the left and right widths of the entrance 22. The conveyance device 40 is formed in the intermediate guide portion 52 having a width wider than the width, and the conveyance device derivative 40 is formed at the termination side guide portion 53 that is substantially the same as the lateral width of the funnel body 51.
According to a third aspect of the present invention, there is provided a conveying apparatus in which the connecting portion 42 at the lower end of the conveyed product derivative 40 is provided with an inclined portion 60 that is inclined so as to approach the exhaust port 23 as it goes downward.
According to a fourth aspect of the present invention, the conveyed product derivative 40 is a conveying device in which a start end portion of the connecting portion 42 is attached to a top plate 45 of the tank 20.
According to the fifth aspect of the present invention, the left and right side plates 71 on both the left and right sides of the tank 20 are provided with air nozzles 70 each having an air outlet 72 in the radial direction.
According to the sixth aspect of the present invention, the conveyed product conveying cylinder 1A of the conveying cylinder 1 between the extension hopper 10 and the blower device 2 is branched so that a plurality of conveyed object separating devices 16 are arranged in parallel, and the conveyed object conveying is performed. A switching valve 86 for branching the conveyed product conveying cylinder 1A is provided at a branch portion of the cylinder 1A, and an air cut valve 87 is provided for each of the exhaust cylinders 1B of the plural conveyed object separating devices 16, and each conveyed object separation is performed. The exhaust cylinder 1B of the apparatus 16 is merged by a merge pipe 88, so that the conveyance flow path leading to a plurality of conveyed product separation apparatuses 16 is switched by a switching valve 86 and an air cut valve 87. is there.

In the first aspect of the present invention, the gap G between the starting end of the conveyed product derivative 40 and the entrance 22 can be favorably diffused in the left-right direction of the carry air entering from the entrance 22. The attenuation effect can be enhanced to improve the separation between the transport object T and the transport air.
According to the second aspect of the present invention, the effect of attenuating the conveyance wind before entering the tank 20 can be enhanced by the entrance 22 having a wider lateral width than the conveyed product conveyance cylinder 1A, and the lateral width of the conveyance object conveyance cylinder 1A can be increased. The transport object T entered from the wide entrance 22 is guided into the transport object derivative 40 by the start end side guide portion 48 of the transport object derivative 40, and further, by the intermediate guide portion 52 and the end side guide portion 53 of the transport object derivative 40. The funnel body 51 of the relaxation device 50 can be reliably guided.
In the invention of claim 3, the inclined portion 60 prevents the transport object T guided by the transport object derivative 40 from hitting the transport object T accumulated on the funnel body 51 and jumping up toward the exhaust port 23. Can do.
In the invention of claim 4, since the top plate 45 is attached to the upper surface of the conveyed product derivative 40, the space of the tank 20 above the conveyed product derivative 40 can be reduced, the overall height of the tank 20 can be reduced, and the conveyed item The structure of attaching the derivative 40 to the tank 20 is simplified to facilitate assembly work, and the top plate 45 covers the upper surface of the conveyed product derivative 40, so that dust or the like accumulates on the upper surface of the conveyed product derivative 40. Can be suppressed.
In the invention of claim 5, the deposits on the inner surface of the tank 20 can be removed, and maintenance can be facilitated.
According to the sixth aspect of the present invention, a plurality of transported object separation devices 16 that can remove the deposits on the inner surface of the tank 20, can be easily maintained, and can satisfactorily separate the transport target T and the transport air are installed at low cost. Can do.

FIG. The vertical side view of a conveyed product separation apparatus. FIG. FIG. The same side view. The front view. The rear view of a conveyance thing derivative | guide_body. FIG. The top view of a funnel body. The same side view. The perspective view of an air nozzle. Block Diagram. The conveyance start state side view. FIG. FIG. FIG. 6 is a schematic layout diagram of another embodiment of the transport device. Sectional drawing of a switching valve. Sectional drawing of an air cut valve. The same side view.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a transport cylinder that constitutes a transport path of a transport apparatus H that transports a transport target T such as feed, buckwheat, soybeans, azuki beans, and rice wheat. H has a blower 2.
The air blower 2 is a well-known device, and is configured to rotate a fan (not shown) so as to be sucked from one side of the air blower 2 and exhausted to the other. A suction end (not shown) of the blower 2 is connected to the end of the transport cylinder 1 to form the suction transport air passage 4 (FIGS. 1 and 2). Reference numeral 6 denotes an exhaust hose connected to an exhaust port (not shown) of the blower 2.
A stretch hopper (storage tank) 10 is connected to the start end of the transport cylinder 1. Reference numeral 11 denotes a suction port for sucking secondary air. One or a plurality of the tension hoppers 10 are provided.
The suction conveyance wind sucked by the blower 2 is lower in temperature than the high-pressure exhaust air compressed and exhausted by the blower 2, and therefore when air is conveyed from the tension hopper 10 by the conveyance wind in the conveyance cylinder 1. The rise of the temperature of the conveyance target T is suppressed or prevented, and the quality change of the conveyance target T is prevented.

Between the blower 2 and the tension hopper 10, a conveyance object separation device 16 that separates the conveyance object T from the tension hopper 10 from the conveyance air is provided (FIGS. 1 and 3). Is provided with a tank (not shown) or a transfer device 17 for separately transferring the separated transfer object T to another location. Since the transfer device 17 is a transfer means to the next process and is not a requirement of the present application, details are omitted. For example, when the brown rice is put into the stretching hopper 10, the transporting device 17 is transported to the rice milling process, and when the white rice is thrown into the stretching hopper 10, it is transported to the rice cooking process.
In the conveying device H, the blowing device 2 sucks the secondary air from the suction port 11, sucks the inside of the conveying cylinder 1 from the tension hopper 10 to the blowing device 2, and is stuck to the conveying cylinder 1 from the tension hopper 10. Then, the transport object T is transported to the transport object separation device 16 by suction air, and the transport object T and air (transport air) transported are separated by the transport object separation device 16.

The transport object separating device 16 is described by describing the front side portion of the rectangular tank 20 (the transport direction of the transport object T is the front-rear direction, describing directions such as front-rear, left-right, etc. for easy understanding) The inlet 22 is formed in the inlet 22, and the transported article transport cylinder 1 </ b> A of the transport cylinders 1 forming the suction transport air passage 4 is connected and fixed to the entrance 22.
An exhaust port 23 is formed on the rear surface (side surface) of the tank 20 that faces the entrance port 22 at a predetermined distance, and a suction exhaust air passage 25 is formed in the exhaust port 23. The exhaust cylinder 1B is connected. Reference numeral 26 denotes a net member provided at the exhaust port 23.
The tank 20 is formed with a relatively large capacity (large volume) relative to the conveyed product conveyance cylinder 1A, and attenuates wind pressure (wind force / wind speed), which is a pressure applied to an object of conveyance wind flowing in from the conveyed product conveyance cylinder 1A. Thus, the transport object T is configured to be separated from the transport air.

That is, since the wind force (wind speed) becomes stronger (faster) when the passage area of the air passage becomes narrower and becomes weaker (slower) when the passage area becomes wider, the tank 20 has a relatively large volume with respect to the diameter of the conveyed article transport cylinder 1A. It is formed so as to have a predetermined capacity (capacity), and is configured to attenuate the wind force (wind speed / wind pressure) of the conveying wind blown out from the conveyed object conveying cylinder 1A until the conveying object T is substantially separated from the conveying wind. .
If the volume of the tank 20 is set to a large volume (capacity) in relation to the inner diameter of the transported object transport cylinder 1A so that the transport wind is attenuated to such an extent that the transport target T can be separated from the transport wind. Well, for example, when the inner diameter W of the conveyed product transport cylinder 1A is about 75 mm, the front and rear, left and right widths of the tank 20 are formed in a substantially square shape of about 400 mm in plan view, and the volume of the tank 20 is set to about 70 liters. It was able to attenuate enough to separate the target T from the conveying wind.

Thus, the tank 20 is divided into an upper case portion 30 and a lower funnel portion 31, and the funnel portion 31 is as much as possible while ensuring a repose angle at which the conveyance target T does not stay (residual). It is configured so that the vertical height is low.
Since the volume of the tank 20 for attenuating the conveyance air from the conveyed product conveyance cylinder 1A can be secured by increasing the front / rear and left / right dimensions of the tank 20, the overall height of the conveyed product separation device 16 is made as low as possible. .
In particular, when the next process of the conveyance object T separated by the conveyance object separation device 16 is a rice milling process or a rice cooking process, if the conveyance object T can be supplied from above, this has not been exceeded. Therefore, the conveyance object separation apparatus Lowering the height of the entire 16 is advantageous because it increases the degree of freedom in selecting the installation location.

Specifically, when the height of the case part 30 is about 350 mm, the height of the funnel part 31 is about 200 mm, and the volume of the tank 20 is set to about 70 liters.
That is, the front / rear / left / right width of the tank 20 may be about 5 times or more the inner diameter of the conveyed product transport cylinder 1A.
Therefore, the inflow horizontal cylinder 33 is provided between the conveyed product conveyance cylinder 1 </ b> A and the tank 20. The base of the inflow horizontal cylinder 33 is fixed to the tank 20, and the transported object transport cylinder 1 </ b> A of the transport cylinders 1 forming the suction transport air passage 4 is connected and fixed to the tip of the inflow horizontal cylinder 33.
The inflow horizontal cylinder 33 connects the conveyed product transfer cylinder 1A to the tank 20, but the inflow horizontal cylinder 33 is formed with a base that is largely open to match the entrance 22 of the tank 20. The connecting portion 34 at the tip is formed to have the same diameter as the conveyed product carrying cylinder 1A, and the opening 22 is formed so that the opening area is larger than the connecting portion 34.

Therefore, the pressure of the conveying wind from the conveyed product conveying cylinder 1A is also attenuated in the inflow horizontal cylinder 33 before entering the tank 20, and the separation of the conveying object T and the conveying wind is further improved.
Further, an exhaust cylinder 1 </ b> B is connected to the exhaust port 23 of the tank 20 via an exhaust horizontal cylinder 35. The exhaust horizontal cylinder 35 is connected to the exhaust port 23 with a large opening at the base. The distal end of the exhaust horizontal cylinder 35 is formed to have the same diameter as the exhaust cylinder 1B, and the exhaust port 23 has a larger opening area than the distal end of the exhaust horizontal cylinder 35.
Therefore, the suction pressure of the exhaust air that sucks the inside of the tank 20 is weakened to suppress the adhesion of deposits sucked by the mesh member 26.
In addition, a predetermined interval is interposed between the entrance 22 and the exhaust port 23, the speed of the transport wind from the entrance 22 to the exhaust port 23 is decreased, and the wind of the transport wind flowing in the tank 20 is transported. The object T is not affected.

Thus, a transport material derivative 40 is provided between the entrance 22 and the exhaust port 23 in the tank 20 to guide the moving direction of the transport target T entering the lateral direction from the entrance 22 to the lower side of the tank 20.
The transport wind passing through the transport cylinder 1A is attenuated when entering the tank 20, and the transport target T is separated from the transport wind and is not easily affected by the transport wind. Since the inertia force during the transfer until the moving object moves and moves toward the axial direction of the transfer object transfer cylinder 1A, the transfer object derivative 40 guides the moving direction of the transfer object T to be below the tank 20. And convert.
Accordingly, the transfer object T transferred to the entrance 22 is guided to the transfer object derivative 40 without falling in a spiral shape on the inner surface of the tank 20 and falls in the tank 20.

The conveyed product derivative 40 is formed in a U-shaped cross section by a pair of left and right vertical plate portions 41 and a connecting portion 42 that connects the left and right vertical plate portions 41. The connecting portion 42 is formed in an arc shape (quarter arc) having a substantially L shape so as to guide the conveyance target T from the entrance 22 toward the lower side of the tank 20. The vertical plate portion 41 protrudes downward from the left and right ends of the connecting portion 42.
The conveyed product derivative 40 is formed separately from the inflow horizontal cylinder 33 and the tank 20, and a predetermined gap G is provided between the starting end of the conveyed product derivative 40 and the entrance 22, and the top plate 45 of the tank 20. Install to.
That is, when the starting end portion of the transported object derivative 40 is attached in close contact with the entrance 22, all the transport air from the entrance 22 is guided to the transported object derivative 40, and once turned downward, it is separated to the left and right sides. Therefore, the presence of the conveyed product derivative 40 becomes resistance when the conveying wind blows through the exhaust port 23, but there is a predetermined distance between the starting end of the conveyed product derivative 40 and the entrance 22. Since G is provided,

The transport object T entering from the entrance 22 hits the transport object derivative 40, and the transport air entering the tank 20 from the entrance 22 is immediately diffused in the left-right direction and divided into left and right to avoid the transport object derivative 35 and the exhaust port 23. It flows toward and is exhausted.
Therefore, the conveying wind is diffused and attenuated immediately before entering the conveyed product derivative 40 from the entrance 22 and is expected to have a good separation between the conveying wind and the conveyance target T.
In addition, the entrance 22 and the exhaust port 23 are provided so as to be relatively linearly inclined, and the transport object derivative 40 is provided between the entrance 22 and the exhaust port 23, so that the transport object derivative 40 moves the transport target T. In addition to making the direction downward, the effect of improving the separation between the conveying air and the conveying object T is also expected.
Further, the transported object derivative 40 is attached to the top plate 45 of the tank 20, thereby reducing the space of the tank 20 above the transported object derivative 40 and reducing the overall height of the tank 20 (transported object separating device 16). .

In addition, it is expected that the gap between the top plate 45 and the upper surface of the conveyed product derivative 40 is reduced to suppress dust and the like from accumulating on the upper surface of the conveyed product derivative 40.
Thus, the left and right width of the entrance 22 is formed to be larger than the inner diameter of the conveyed product transport cylinder 1A, and the starting end of the transport material derivative 40 is formed to be substantially the same as or wider than the left and right width of the entrance 22 It forms in the start end side guide part 48 formed narrowly as it reaches the mouth 23 side.
In other words, the starting end side guide portion 48 forms the vertical plate portion 41 and the connecting portion 42 in a shape of a letter “C” that is wider in plan view as it approaches the entrance 22.
The conveyed product derivative 40 is formed on the intermediate guide portion 52 having a width wider than the left and right width of the funnel body 51 of the relaxation device 50 described later, which is narrower than the left and right width of the entrance 22, following the start end side guide portion 48. The terminal end of the conveyed product derivative 40 is formed in the terminal end side guide part 53 substantially the same as the left-right width of the funnel body 51.

That is, the left and right widths of the vertical plate portion 41 at the intermediate portion of the conveyed product derivative 40 are formed to be narrower than the left and right widths of the entrance 22 so as to correspond to the left and right widths of the funnel body 51 of the relaxation device 50 described later. The starting end side guide portion 48 of the object derivative 40 is formed to be substantially the same as or wider than the left and right width of the entrance 22, and smoothly guides the object T to be conveyed from the entrance 22 to the funnel body 51.
Thus, the relaxation device 50 is provided to alleviate the shock of the fall of the transport target T from the transported object derivative 40, and the relaxation device 50 is formed in a funnel shape that becomes narrower as the upper part is opened and the lower part is lowered. The funnel body 51 is provided. In the lower part of the funnel body 51, a drop port 55 is formed through which the transport target T flowing into the funnel body 51 falls. Reference numeral 56 denotes an opening at the top of the funnel body 51.
The relationship between the drop port 55 and the opening 56 is set so that the amount of the drop from the drop port 55 is smaller than the transfer amount of the transfer object T from the transfer object transfer cylinder 1A. The conveying object T is configured to overflow from the opening 56 rather than falling from the opening 56.

In this way, by configuring the funnel 51, the transport object T falling from the transport object derivative 40 falls onto the transport object T overflowing from the opening 56, and the transport object T is in the lower part of the tank 20. The shock is reduced as compared with the case where the object is directly dropped, and the damage to the conveyance target T is suppressed.
Further, when a predetermined gap 57 is formed between the opening 56 of the funnel body 51 and the lower end of the conveyed product derivative 40, and the conveyance target T stays in the funnel 51, the conveyance target T overflows from the gap 57. Configure as follows.
Accordingly, the conveyance target T is configured to overflow from the entire circumference of the funnel body 51.
An inclined portion 60 is provided on the exhaust port 23 side at the lower end of the conveyed product derivative 40. The inclined portion 60 is inclined so as to approach the exhaust port 23 as it goes downward.
The lower end of the connection part 42 of the conveyed product derivative 40 is faced above the edge of the opening 56 of the funnel body 51 on the exhaust port 23 side, and the exhaust port is positioned closer to the exhaust port 23 than the edge of the opening 56 of the funnel body 51. The inclined portion 60 is provided so as to protrude toward the 23 side.

Therefore, the inclined portion 60 suppresses the transport object T from jumping toward the exhaust port 23 by being guided by the transport object derivative 40 against the transport object T that accumulates and overflows on the funnel body 51.
The funnel body 51 is fixed to the tip of the mounting arm 61 for mounting, the base of the mounting arm 61 is fixed to the mounting plate portion 62, and the mounting plate portion 62 is detachable from the front plate 63 of the funnel portion 31 of the tank 20. Install to. 64 is an opening formed in the front plate 63 of the funnel portion 31, and the funnel body 51 is inserted into the tank 20 from the opening 64, and the fitting portion 64 </ b> A of the mounting plate portion 62 is fitted into the opening portion 64. Block.
Therefore, since the funnel body 51 is attached to the front plate 63 of the funnel portion 31 of the tank 20, the vertical height of the tank 20 can be set still lower.
In addition, since the funnel body 51 is inserted into the tank 20 from the opening 64, the size of the funnel body 51 is a size that can be inserted from the opening 64, and is smaller than the lateral width of the entrance 22; The funnel body 51 is smoothly guided by the terminal side guide portion 53 at the end of the conveyed product derivative 40 formed substantially the same as the left and right width of the funnel body 51.

Accordingly, the tank 20 is provided with an air nozzle 70 for cleaning. The air nozzle 70 is attached to the case part 30 left and right side plates 71 of the tank 20. A plurality of air jets 72 are formed in a radial direction with respect to the axial direction of the air nozzle 70. A blower tube 73 is connected to the air nozzle 70. The blower tube 73 is connected to the blower 73A. An open / close valve 74 and a purifier 75 are provided between the air nozzle 70 and the blower. The purifier 75 removes oil, moisture or dust in the air.
The opening / closing valve 74 is closed during a normal transfer operation, and after the transfer operation, the entire transfer apparatus is idled. At this time, the open / close valve 74 is opened to eject air from the air outlet 72 of the air nozzle 70, The dust in the tank 20 is removed, and the removed dust is transported by a transport device during idle operation and discharged outside the apparatus.

Accordingly, a discharge feeding mechanism 80 that discharges the conveyance target T by a substantially constant amount is provided below the funnel portion 31 of the tank 20. The discharge / feeding mechanism 80 is configured by mounting a horizontal rotation shaft 83 provided with a rotary blade 82 in sliding contact with the inner periphery of the drum 81 at the center of the drum 81 having an inner peripheral surface of a circle.
Therefore, the funnel body 51 of the mitigation device 50 is provided so as to be located on the rear side (back side) closer to the exhaust port 23 than the middle of the front and rear of the tank 20, and the funnel body 51 includes the discharge feeding mechanism 80 and the rotor blade 82. It is configured to be positioned above the rotation rising side.
Therefore, most of the conveyance target T overflowing from the funnel body 51 falls to the rotation rising side of the rotary blade 82, and the inflow of the conveyance target T to the drum 81 of the discharge feeding mechanism 80 is made smooth and favorable.
Instead of the discharge / feeding mechanism 80, an open / close deformable valve called a throat valve by those skilled in the art may be provided.

Therefore, a dust cyclone (air cleaner) 85 is provided in the exhaust cylinder 1B on the lower side in the blowing direction of the conveyed product separating device 16. The dust cyclone 85 is a known one and may be any one that can separate and remove the dust mixed in the conveying air (suction air), and details thereof are omitted. The exhaust cylinder 1 </ b> B on the lower side of the dust cyclone 85 is connected to the intake portion 3 of the blower 2.
FIG. 14 shows another embodiment in which a plurality of transported article separating devices 16 are arranged in parallel.
A switching valve 86 is provided at the intermediate portion of the conveyed product conveying cylinder 1A, and the conveyed product conveying cylinder 1A is branched into the first conveyed product separating device 16A and the second conveyed product separating device 16B, and the first conveyed product separating device 16A and the second conveyed material are branched. An air cut valve 87 is provided in the exhaust cylinder 1B of the object separation device 16B.
86A is a switching body of the switching valve 86, and 86B is an attachment shaft to which the switching body 86A is attached.

87A is an opening / closing body of the air cut valve 87, 87B is a switching shaft for switching the opening / closing body 76 between an open position and a closed position, and 87C is an actuator for rotating the switching shaft 77. The actuator 87C is configured by a pneumatic system that operates by air, but may be an electrical system.
Then, as shown in FIG. 14, when transporting to the first transported object separating device 16A, the switching valve 86 is switched to the first transported object separating device 16A, and the air cut valve 87 of the second transported object separating device 16B is closed. The transport object T is transported and separated by the first transport object separation device 16A, and the process proceeds to the next step.
When transporting to the second transported object separating apparatus 16B, the switching valve 86 is switched to the second transported object separating apparatus 16B, and the air cut valve 87 of the first transported object separating apparatus 16A is closed. It is conveyed and separated by the object separation apparatus 16B, and it transfers to the next process.

Further, a second switching valve 86 is provided in the conveyed product conveying cylinder 1A toward the second conveyed product separating apparatus 16B, and the conveyed object conveying cylinder 1A is branched between the second conveyed object separating apparatus 16B and the third conveyed object separating apparatus 16C. In addition, an air cut valve 87 is provided in the exhaust cylinder 1B of the third conveyed product separation device 16C.
In this way, the conveyed product conveying cylinder 1A reaching the conveyed product separating apparatus 16 is branched by the switching valve 86, and an air cut is performed on each of the exhaust cylinders 1B of the conveyed object separating apparatus 16 connected to the branched conveyed object conveying cylinder 1A. When the valve 87 is provided, a transfer path in which a plurality of transfer object separating devices 16 are provided in parallel by the switching valve 86 and the air cut valve 87 can be configured.
Reference numeral 88 denotes a merging pipe for merging the exhaust cylinders 1 </ b> B of the conveyed product separation devices 16.

(Operation of Example)
The tension shutter 12 of the tension hopper 10 is closed and the object to be conveyed T is tensioned to the tension hopper 10. Next, the air passage opening / closing valve (not shown) is closed to energize the blower 2, and the blower 2 When the air passage opening / closing valve is opened after being energized, the air in the transport cylinder 1 is sucked by the blower 2, and thereby the inside of the tank 20 of the transported article separating device 16 becomes negative pressure.
When the tension shutter of the tension hopper 10 is opened in this state, the conveyance object T in the tension hopper 10 is sucked into the conveyance cylinder 1 and passes through the conveyance object conveyance cylinder 1A by the suction air flowing in the conveyance cylinder 1. To the tank 20 of the conveyed product separation device 16.
The conveyed product separating device 16 forms a case tank 20 having an arbitrary shape with a relatively large capacity relative to the conveyed product conveying cylinder 1A, and is a wind pressure (pressure) applied to an object of conveying air blown from the conveyed object conveying cylinder 1A. (Wind force / wind speed) is attenuated, so when the transport object T enters the tank 20, it is separated from the transport wind and released from the influence of the wind (FIG. 2).

Therefore, the conveyed product separation device 16 does not generate a vortex due to the conveying wind in the tank 20, and the conveying target T does not slide on the inner peripheral surface of the tank 20 due to the centrifugal force of the vortex. The object T is separated, and damage to the transport object T is suppressed / prevented.
That is, when the transport target T is transported in the transported object transport cylinder 1A by the transport air, the transport air and the transport target T enter the tank 20 from the entrance 22 and the transport air flows in the transported object transport cylinder 1A. Since it is attenuated when entering the tank 20 rather than when it is blowing, the conveying wind and the object T are separated, and the air in the tank 20 is exhausted from the exhaust port 23.
Accordingly, the volume of the tank 20 only needs to be attenuated to such an extent that the conveyance target T can be separated from the conveyance air, and may be set to a relatively large capacity relative to the inner diameter of the conveyance object conveyance cylinder 1A. The tank 20 is formed in an upper case portion 30 and a lower funnel portion 31, and the funnel portion 31 is as low in height as possible while ensuring an angle of repose in which the object to be transported T does not stay. Therefore, the height of the entire conveyed product separator 16 can be suppressed, and the vertical installation space can be reduced.

Since the transported article separating device 16 can secure the volume for the tank 20 to attenuate the transported wind from the transported product transporting cylinder 1A in the front and rear, left and right dimensions, the overall height of the transported product separating apparatus 16 can be reduced. When the transport object T is a grain and the next process is a rice milling process or a rice cooking process, the transport object T can be supplied from above, and therefore the selection of the installation location of the transport object separation device 16 with the overall height lowered. The degree of freedom can be expanded.
The exhaust port 23 for exhausting the air in the tank 20 can also be provided on the side surface (rear surface) of the tank 20 to connect the exhaust cylinder 1B, and the exhaust of the tank 20 can be extracted from the lateral direction. The overall height of the conveyed product separating apparatus 16 can be suppressed, and the vertical installation space can be reduced.
The entrance 22 and the exhaust port 23 form an exhaust port 23 with a predetermined distance from the entrance 22 to form an exhaust port 23, so that the attenuated carrier air flows straight from the entrance 22 to the exhaust port 23. Therefore, the conveyance wind passing through the tank 20 is prevented from being swirled, the conveyance target T is prevented from sliding on the inner periphery of the tank 20, and the conveyance target T is prevented from being damaged.

The conveyed product conveyance cylinder 1A is connected to the tank 20 via an inflow horizontal cylinder 33. The inflow horizontal cylinder 33 has a large opening at the base to form the entrance 22, and a connecting portion 36 at the tip of the inflow horizontal cylinder 33 is conveyed. Since the inlet 22 is formed to have the same diameter as the article transport cylinder 1A and the opening 22 has a larger opening area than the connection portion 36, the pressure of the transport air from the article transport cylinder 1A enters the tank 20. The front inflow horizontal cylinder 33 is also attenuated, and the separation of the transport object T and the transport air is performed well, and the outer shape of the tank 20 can be reduced accordingly.
Similarly, the exhaust cylinder 1B is connected to the tank 20 via an exhaust horizontal cylinder 35, and the base of the exhaust horizontal cylinder 35 is opened larger than the exhaust cylinder 1B to form an exhaust port 23, thereby forming the exhaust cylinder 1B. Since the opening area of the exhaust port 23 is larger than that of the exhaust port 23, the suction pressure of the exhaust air sucked into the tank 20 is weak when exhausted from the exhaust port 23, and the adhering matter sucked into the mesh member 26 Suppresses adhesion.

Accordingly, the transported object separating device 16 is configured such that the tank 20 is formed with a relatively large capacity relative to the transported object transport cylinder 1A, and the transport air from the transported object transport cylinder 1A is sufficiently attenuated so that the transport object T is Combined with the fact that it is configured to be separated, the vortex flow caused by the transfer wind is not generated in the tank 20, and the transfer target T does not slide on the inner peripheral surface of the tank 20 due to the centrifugal force of the vortex flow. When suctioning and exhausting from the exhaust port 23, the conveyance target T is prevented from being directly sucked from the exhaust port 23.
Thus, a conveyed product derivative 40 is provided between the entrance 22 and the exhaust port 23 in the tank 20, and the conveyed product derivative 40 connects the pair of left and right vertical plate portions 41 and the left and right vertical plate portions 41. Since the transport object derivative 40 is formed in a substantially L-shaped arc shape in a side view, the transport object of the transport object T that has jumped out from the entrance 22 is formed. By the derivative 40, the lateral movement direction is converted downward to the lower side of the tank 20 and guided.
Therefore, the transport object T transported to the entrance 22 is guided by the transport object derivative 40 without falling on the inner surface of the tank 20 and falls inside the tank 20, so that the transport object T slides on the inner surface of the tank 20. The contact object T is prevented from being damaged without touching.

  The conveyed product derivative 40 is separate from the inflow horizontal cylinder 33 and the tank 20, and is attached to the tank 20 with a predetermined gap G between the starting end of the conveyed product derivative 40 and the entrance 22. Therefore, the conveying air entering the tank 20 from the entrance 22 immediately flows toward the exhaust port 23 while being diffused in the left-right direction, and is exhausted.

That is, when the starting end portion of the transported object derivative 40 is attached in close contact with the entrance 22, all the transport air from the entrance 22 is guided to the transported object derivative 40, and once turned downward, it is separated to the left and right sides. Therefore, the presence of the conveyed product derivative 40 becomes a resistance when the conveyance wind blows through the exhaust port 23, but in the present application, between the starting end of the conveyed product derivative 40 and the entrance 22, Since the predetermined interval G is provided, the conveying air that has entered the tank 20 from the entrance 22 immediately flows toward the exhaust port 23 while being diffused in the left-right direction, and is exhausted.
For this reason, the conveyance wind entering from the entrance 22 is not only directed to the exhaust port 23 while being guided downward by the conveyance object derivative 40, but also diffuses right and left immediately from the entrance 22, so that the conveyance wind and the conveyance object T It works to improve the separation.

In addition, since the entrance 22 and the exhaust port 23 are provided so as to be linearly opposed to each other and the transported object derivative 40 is provided between the entrance 22 and the exhaust port 23, the transported object derivative 40 is not attached to the transport object T. Not only the movement direction is lowered, but also separation between the conveying air and the conveying object T is favorably performed.
In addition, since the transported object derivative 40 is attached to the top plate 45 of the tank 20, dust and the like are prevented from accumulating on the upper surface of the transported object derivative 40.
The left and right widths of the start end of the vertical plate portion 41 are formed to be substantially the same as or wider than the left and right widths of the entrance 22, and are formed narrower toward the exhaust port 23 side. Since the inflow horizontal cylinder 33 between the conveyed product conveyance cylinder 1A and the tank 20 is directed toward the entrance 22 of the tank 20, the opening cross-sectional area is increased. The pressure of the transport air is attenuated by the inflow horizontal cylinder 33 before entering the tank 20, is attenuated by the volume difference when entering the tank 20, and the separation of the transport object T and the transport wind spreading in the left-right direction is good. At the same time, it is reliably guided to the funnel body 51 of the lower relaxation device 50.

That is, the left and right widths of the vertical plate portion 41 at the intermediate portion of the conveyed product derivative 40 are formed narrower than the left and right widths of the entrance 22 in order to correspond to the left and right widths of the funnel body 51 of the relaxation device 50. The start end side guide portion 48 is formed to be substantially the same as or wider than the left and right width of the entrance 22, thereby widening the entrance 22 and the width of the entrance 22 to effectively attenuate the conveyance wind, while lowering the funnel body of the lower relaxation device 50. Ensure guidance to 51.
Therefore, since the mitigation device 50 for reducing the shock of the fall of the conveyance object T is provided below the lower end of the conveyance object derivative 40, the conveyance object T falling from the conveyance object derivative 40 is transferred by the relaxation device 50. The shock of falling is reduced and the conveyance target T is prevented from being damaged.

  The mitigating device 50 is formed with a thin funnel body 51 as it goes downward with its upper part opened, and a dropping port 55 is formed in the lower part of the funnel body 51 through which the transport object T flowing into the funnel body 51 falls. When the transport object T transported from the transport object transport cylinder 1A falls on the funnel body 51, a part of the drop port 55 and the opening 56 falls from the drop port 55, but most of the transport object T Since the transfer object T is configured to overflow from the opening 56 of the funnel 51, the transfer object T falling from the transfer object derivative 40 falls onto the transfer object T overflowing from the opening 56, and the transfer object T is stored in the tank. The shock is reduced rather than dropping directly to the lower part of the inside 20, and damage to the transport target T is suppressed.

  Further, an inclined portion 60 that is inclined so as to approach the exhaust port 23 as it goes downward is provided on the exhaust port 23 side of the lower end of the conveyed product derivative 40, and the inclined portion 60 is the exhaust port 23 of the opening 56 of the funnel body 51. Since the lower end of the connecting portion 42 of the conveyed product derivative 40 is faced above the edge on the side, it is formed so as to protrude from the edge on the exhaust port 23 side of the opening 56 of the funnel body 51 to the exhaust port 23 side. The inclined object 60 is prevented from jumping toward the exhaust port 23 by being guided by the conveyed object derivative 40 against the conveying object T that accumulates and overflows on the funnel body 51.

Therefore, since the left and right side plates 71 of the tank 20 are provided with a plurality of air nozzles 70, air is ejected from the air ejection port 72 to remove deposits on the inner surface of the tank 20.
That is, the opening / closing valve 74 is closed during normal transfer work, and after the transfer work, the entire transfer device is idled. At this time, the open / close valve 74 is opened and air is ejected from the air outlet 72 of the air nozzle 70. Then, the dust in the tank 20 is removed, and the removed dust is transported by the transport device during idling and discharged outside the apparatus.
In this case, a plurality of air outlets 72 of the air nozzle 70 are formed in a radial direction with respect to the axial center direction of the air nozzle 70, and therefore, particularly, deposits on the four corners in the tank 20 are removed.

  Accordingly, a switching valve 86 for branching the conveyed product conveyance cylinder 1A between the first conveyed product separation device 16A and the second conveyed product separation device 16B is provided in an intermediate portion of the conveyed product conveyance tube 1A, and the first conveyed product separation device is provided. Since the air cut valve 87 is provided in each of the exhaust cylinder 1B of 16A and the second conveyed product separating apparatus 16B, when the conveying valve 86 is conveyed to the first conveyed object separating apparatus 16A, the switching valve 86 is set to the first conveyed object separating apparatus. When switching to 16A and closing the air cut valve 87 of the second conveyed product separating apparatus 16B, the conveying air does not flow through the second conveyed object separating apparatus 16B, and the conveyed object T is conveyed to the first conveyed object separating apparatus 16A. Separated and move to the next step.

Conversely, when transporting to the second transported object separating device 16B, the switching valve 86 is switched to the second transported object separating device 16B, and the air cut valve 87 of the first transported object separating device 16A is closed. The conveying air does not flow through the device 16A, and the conveyance object T is conveyed and separated by the second conveyance object separation device 16B, and the process proceeds to the next step.
Further, a second switching valve second switching valve 86 is provided on the conveyed product conveying cylinder 1A toward the second conveyed product separating apparatus 16B, and the conveyed product conveying cylinder is provided between the second conveyed product separating apparatus 16B and the third conveyed product separating apparatus 16C. 1A is branched, and the conveyance cylinder 1A reaching the conveyance separator 16 is branched by a switching valve 86 so that an air cut valve 87 is provided in the exhaust cylinder 1B of the third conveyance separator 16C. Since the air cut valve 87 is provided in each of the exhaust cylinders 1B of the conveyed product separation device 16 connected to the conveyed product conveyance cylinder 1A, the desired conveyed product separation device 16 among the plurality of conveyed product separation devices 16 is provided. A plurality of juxtaposed conveyances can be made by simply switching the switching valve 86 so that the conveyance air flows and does not flow to other conveyance object separation devices 16 and closing the air cut valves 87 of the unused conveyance material separation devices 16. You can choose the road.

  DESCRIPTION OF SYMBOLS 1 ... Conveyance cylinder, 1A ... Conveyed material conveyance cylinder, 1B ... Exhaust cylinder, 2 ... Blower, 4 ... Suction conveyance air path, 5 ... Exhaust port, 7 ... Storage tank, 10 ... Stretch hopper, 11 ... Suction part , 12 ... tension shutter, 16 ... conveyed product separating device, 17 ... conveying device, 20 ... tank, 21 ... inflow horizontal cylinder, 22 ... inlet, 23 ... exhaust port, 24 ... exhaust horizontal cylinder, 25 ... suction exhaust air Road, 26 ... Net member, 30 ... Case part, 31 ... Funnel part, 33 ... Connection part, 34 ... Connection part, 35 ... Transported material derivative, 36 ... Upper end, 37 ... Lower end, 38 ... Arc part, 41 ... Vertical plate , 42 ... connecting part, 45 ... top plate, 48 ... start end side guide part, 50 ... relaxation device, 51 ... funnel part, 52 ... intermediate guide part, 53 ... end side guide part, 55 ... drop port, 56 ... opening , 57 ... gap, 60 ... inclined part, 61 ... mounting arm, 62 ... mounting plate part, 70 ... air nozzle 71 ... Left and right side plates, 72 ... Air outlet, 73 ... Air blow tube, 74 ... Open / close valve, 75 ... Purifier, 81 ... Drum, 82 ... Rotary blade, 83 ... Horizontal rotary shaft, 86 ... Switching valve, 86A ... Switching body , 86B ... mounting shaft, 87 ... air cut valve, 87A ... opening / closing body, 87B ... switching shaft, 87C ... actuator, 88 ... confluence pipe, G ... spacing, H ... transport device, T ... transport object.

Claims (6)

  A tension cylinder hopper 10 is connected to a conveyance cylinder 1 that is connected to an air intake portion of the blower 2 and conveys a conveyance target T by suction conveyance air, and a conveyance cylinder 1 between the tension hopper 10 and the blower 2. Is provided with a transport object separating device 16 for separating the transport object T from the tension hopper 10 from the transport air, and the transport object separating device 16 is connected to the entrance 22 provided in the rectangular tank 20. The cylinder 1 is connected to the conveyed product conveyance cylinder 1A, and the exhaust port 1B for exhausting the air in the tank 20 is connected to the exhaust cylinder 1B of the conveyance cylinder 1 so that the tank 20 The tank is formed so as to have a relatively large volume with respect to the inner diameter of the object transport cylinder 1A, the transport air entering from the transport object transport cylinder 1A is attenuated, and the transport wind and the object T to be transported are separated. 20 in the lateral direction from the entrance 22 into the tank 20 A transport material derivative 40 for guiding the moving direction of the transport object T to enter is provided below the tank 20, and the tank 20 below the transport material derivative 40 is provided below to reduce shock of dropping of the transport object T. A mitigation device 50 having a thin funnel 51 is provided, and the conveyed product derivative 40 includes a pair of left and right vertical plate portions 41 and a connecting portion connecting portion 42 that connects the left and right vertical plate portions 41. And is formed separately from the conveyed product conveying cylinder 1A and the tank 20, and a predetermined gap G is formed between the starting end of the conveyed product derivative 40 and the entrance 22 in the conveying wind entering direction. Conveying device provided with.   In Claim 1, the said entrance 22 and the said exhaust port 23 are provided so that it may be linearly opposed, and a cross-sectional area gradually expands between the terminal part of the said conveyed product conveyance cylinder 1A and the said entrance 22. An inflow horizontal cylinder 33 is provided, the left and right width of the entrance 22 is formed larger than the inner diameter of the transported article transport cylinder 1A, and the starting end portion of the transported derivative 40 is substantially the same as or wider than the left and right width of the entrance 22 Formed at the start end side guide portion 48 formed narrower as it reaches the exhaust port 23 side, and following the start end side guide portion 48 from the left and right width of the funnel body 51 formed narrower than the left and right width of the entrance 22 The conveying device is formed in the intermediate guide part 52 having a wider width, and the terminal end of the conveyed product derivative 40 is formed in the terminal side guide part 53 substantially the same as the left and right width of the funnel body 51.   3. The transport device according to claim 1, wherein the connecting portion at the lower end of the transported material derivative is provided with an inclined portion that is inclined so as to approach the exhaust port as it goes downward.   4. The transport device according to claim 1, wherein the transported product derivative is attached to a top plate 45 of the tank 20.   5. The transfer apparatus according to claim 1, wherein the left and right side plates 71 of the left and right sides of the tank 20 are provided with air nozzles 70 each having an air outlet 72 in a radial direction.   In Claim 1 or Claim 2 or Claim 3 or Claim 4 or Claim 5, the transport object transport cylinder 1A of the transport cylinder 1 between the extension hopper 10 and the blower 2 is branched and transported. A plurality of the object separation devices 16 are arranged in parallel, and a switching valve 86 for branching the object conveyance cylinder 1A is provided at a branch portion of the object conveyance cylinder 1A, and each of the exhaust cylinders 1B of the plurality of object separation devices 16 is provided. Each has an air cut valve 87, and the exhaust cylinder 1B of each conveyed product separation device 16 is joined by a merging pipe 88, so that a conveyance flow path to a plurality of conveyed product separation devices 16 is connected to a switching valve 86 and an air cut. A transfer device configured to be switched by a valve 87.

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