JP2012211018A - Conveyance device, and conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the size of a vertical installation space of a tank of a conveyance object separation device.SOLUTION: A conveyance object conveyance cylinder 1A is connected to an entry port 22 formed on a tank 20 of an optional shape, and an exhausting cylinder 1B is connected to an exhaust port 23. The tank 20 is formed in a relatively-large volume with respect to the inner diameter of the conveyance object conveyance cylinder 1A to attenuate conveyance wind from the conveyance object conveyance cylinder 1A to allow a conveyance target T to be separated. In the tank 20, a conveyance object guide body 35 is arranged to guide the moving direction of the conveyance target T from the entry port 22 to the lower side of the tank 20. An alleviation device 40 is arranged at the lower end 37 of the conveyance object guide body 35. In this conveyance device, the lateral width of the tank 20 is formed twice or more as much as the inner diameter of the conveyance object conveyance cylinder 1A, and thereby the tank is formed in the relatively-large volume with respect to the inner diameter of the conveyance object conveyance cylinder 1A.

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).
Conventionally, a vertical inflow cylinder is provided at the top of a cylindrical tank, and a conveyance cylinder for conveying an object to be conveyed by suction conveyance air is connected to the inflow cylinder, and the conveyance air in the tank is connected to the upper side surface of the tank. The lower end of the inflow tube is opened downward at a predetermined distance from the exhaust port, and the inflow tube has a large diameter approximately twice or more than the inner diameter of the conveyed product transfer tube. The formed structure has been filed by the same applicant and is known (Patent Document 2).

Japanese Patent Laid-Open No. 05-104033 JP 2007-186111 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, in the latter separation apparatus, since the inflow cylinder is provided at the upper part of the tank, the generation of the vortex flow in the tank is suppressed, and the problem of the former known example of the damage of the conveyance object is solved. However, since the inflow cylinder is simply formed to have a diameter that is approximately twice or more than the diameter of the transfer cylinder, the speed of the transfer wind entering the tank from the transfer cylinder through the inflow cylinder is sufficiently reduced. In addition, the configuration is not such that the transport air and the transport object are separated immediately.
Therefore, there is a problem that the conveyance wind affects the fall of the conveyance object entering the tank, and the noise that the conveyance object hits the inner surface of the lower part of the tank is large.
Moreover, in the latter known example, there is a problem that the conveyance object is sucked from the horizontal exhaust port because the conveyance air is introduced from above and exhausted from the side.
Therefore, it is necessary to project the lower end of the inflow cylinder of the tank downward into the tank and provide a vertical difference between the lower end of the inflow cylinder and the exhaust port so that the object to be conveyed is not sucked and discharged from the exhaust port. As a result, there is a problem that the height of the entire tank is increased, the installation space in the vertical direction is increased, and the installation location is restricted.
Moreover, since the conveyance object is dropped downward from the inflow cylinder, there is a problem that no countermeasure is taken for the drop from the inflow cylinder.
The present application separates the transport object and the transport air without bringing the transport object into sliding contact with the inner surface of the tank, and further suppresses the adverse effect of the drop of the transport object and reduces the vertical installation space. , So as to reduce the restrictions on the installation location.

According to the first aspect of the present invention, a storage tank 7 is connected to a transport cylinder 1 that is connected to an air intake portion 3 of a blower 2 and transports an object T to be transported by suction transport wind, and the storage tank 7, the blower 2, The transport cylinder 1 is provided with a transport object separating device 16 for separating the transport object T from the storage tank 7 from the transport wind F, and the transport object separating device 16 is provided in an arbitrarily shaped tank 20. Connected to the inlet 22 of the air blower 2 to the port 22 is connected to the transported object transport cylinder 1A of the transport cylinders 1 for transporting the transport object T by suction transport air, and the air in the tank 20 is exhausted. The exhaust port 1 is connected to the exhaust cylinder 1B of the transport cylinder 1, and the tank 20 is formed to have a relatively large volume with respect to the inner diameter of the transport object transport cylinder 1A. It attenuates so that the conveying object T can be separated from the conveying air from 1A In the tank 20, the movement direction of the conveyance target T entering the tank 20 laterally from the entrance 22 is set to be below the tank 20. A conveyance derivative 35 that is guided and converted is provided, and in the tank 20 below the lower end 37 of the conveyance derivative 35, the upper part that relaxes the shock of the fall of the conveyance target T is opened downward. A relaxation device 40 having a thin funnel portion 41 is provided, the funnel portion 41 is fixed to the tip of the mounting arm 46, and the base of the mounting arm 46 is detachably attached to the inner surface of the tank 20, and the entry The width of the tank 20 in the direction intersecting the entrance direction of the conveying wind from the opening 22 is at least double the inner diameter of the conveyed product conveying cylinder 1A, and thus the inner diameter of the conveyed object conveying cylinder 1A. Phase It is obtained by a conveying device formed in large volume in manner.
In the invention according to claim 2, the conveyed product derivative 35 is separate from the conveyed product conveying cylinder 1A and the tank 20, and has substantially the same height from the left and right sides of the arc-shaped arc portion 38 as viewed from the side. A vertical plate part 39 is provided to form a U-shaped cross section, and the upper end 36 of the arc part 38 is attached to the upper surface side in the tank 20.
In the invention of claim 3, the lower ends of the left and right vertical plate portions 39 of the upper end 36 of the arc portion 38 of the conveyed product derivative 35 are substantially coincident with the height of the lower edge of the entrance 22 formed in the tank 20. This is a formed transfer device.
According to a fourth aspect of the present invention, a base portion is opened to the entrance 22 and a tip is connected to the transported article transport cylinder 1A via an inflow horizontal cylinder 21 formed to have the same diameter as the transported article transport cylinder 1A. This is a configured conveying device.

In the invention of claim 1, when the transport target T enters the tank 20, the transport wind is already attenuated by the space of the large tank 20 and separates the transport wind and the transport target T. It is possible to prevent sliding contact with the inner periphery of the tank 20, to prevent damage to the conveyance target T due to sliding contact, and to increase the volume of the tank 20 in the lateral direction, and to reduce the height of the tank 20. Therefore, the overall height of the conveyed product separating apparatus 16 can be suppressed, the installation space in the vertical direction can be reduced, and the conveying air and the conveying object T are separated when entering the tank 20, so that the conveying object in the tank 20 is separated. The conveyance wind does not act on the fall of T, and it is possible to suppress the decrease in commercial value and the generation of noise, which are the effects of the fall of the conveyance target T.
Moreover, the attachment of the funnel part 41 can be facilitated, and maintenance work can be facilitated.
In addition, since the lateral width of the case portion 30 of the tank 20 in the direction intersecting the entrance direction of the conveyance wind from the entrance 22 is formed at least twice as large as the inner diameter of the conveyed product conveyance cylinder 1A, It can be formed in a relatively large volume with respect to the inner diameter of the object transport cylinder 1A, so that the separation between the transport air and the transport object T can be improved.
In the invention of claim 2, attachment of the conveyed product derivative 35 can be facilitated.
In invention of Claim 3, it suppresses that the conveyance target T which approachs from the lower part of the entrance 22 is scattered in the width direction.
In the invention of claim 4, the pressure of the conveying air from the conveyed object conveying cylinder 1A is also attenuated in the inflow horizontal cylinder 21 before entering the tank 20, and the conveying object T and the conveying air are separated well, Therefore, the outer shape of the tank 20 can be reduced.

Schematic arrangement diagram of an example of a transport device. The vertical side view of a conveyed product separation apparatus. Sectional drawing of a conveyed product separation apparatus. The vertical side view of the other Example of a conveyed product separation apparatus. FIG. The top view of the Example which provided the side cover. The front view. The same side view. The rear view. The vertical side view of a conveyance derivative. FIG. The front view. The side view of a mitigation device. FIG. The front view of the front board part which attached the funnel part of the mitigation apparatus. The top view of a discharge | emission feeding mechanism. The perspective view of a conveyed product separation apparatus. FIG. FIG. The opening state perspective view seen from the lower part of the opening-and-closing mechanism. The obstruction | occlusion state perspective view seen from the downward direction of the opening / closing mechanism.

An embodiment of an apparatus capable of carrying out the method of the present invention will be described with reference to the drawings. 1 is a transport that constitutes a transport path of a transport apparatus H that transports a transport target T such as feed, buckwheat, soybean, azuki, and rice wheat. It is a cylinder, and the conveying device H is provided with 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. The suction section 3 of the blower 2 is connected to the end of the transport cylinder 1 to form a suction transport air path 4 (FIG. 3). Reference numeral 5 denotes an exhaust port of the blower 2, and an exhaust hose 6 is connected to the exhaust port 5.
The lower end of the tension hopper 10 of the storage tank 7 is connected to the starting end of the transport cylinder 1. Reference numeral 11 denotes a suction port for sucking secondary air, and reference numeral 12 denotes a tension shutter that opens and closes the connection between the transport cylinder 1 and the tension hopper 10.
One or more storage tanks 7 are provided.

The suction conveyance wind sucked by the blower 2 is lower in temperature than the high-pressure exhaust wind compressed by the blower 2 and exhausted from the exhaust port 5. When transporting, the temperature of the transport target T is suppressed or prevented from increasing, and the transport target T is prevented from being altered.
Between the blower 2 and the storage tank 7, a transport object separating device 16 that separates the transport object T from the storage tank 7 from the transport air F (FIG. 1 and FIG. 3) is provided. A tank (not shown) or a transfer device 17 for separately transferring the separated transfer object T is provided. 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 storage tank 7, the transfer device 17 is transferred to the rice milling process, and when the white rice is put into the storage tank 7, the transfer device 17 is transferred to the rice cooking process.

In the transfer device H, the suction air sucked by the blower 2 flows into the transfer cylinder 1 from the tension hopper 10 to the blower 2 and is transferred from the tension hopper 10 to the transfer cylinder 1 and conveyed to the conveyed product separation device 16. The conveyed object T is separated from the air (conveyance wind F) by the conveyed object separation device 16.
The conveyed product separating device 16 forms an entrance 22 in a front portion of the tank 20 having an arbitrary shape (for the sake of easy understanding, description is made by describing directions such as front and rear, left and right, but the configuration is not limited by these). Then, the transported object transport cylinder 1A 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 in the tank 20 facing the entrance 22 at a predetermined distance, and an exhaust tube 1B of the transport tube 1 forming a suction exhaust air passage 25 is formed in the exhaust port 23. Connecting. Reference numeral 26 denotes a net member provided at the exhaust port 23.

In this case, the tank 20 is formed to have a relatively large capacity (large volume) relative to the conveyed product conveyance cylinder 1A, and wind pressure (wind power / wind velocity) that is a pressure applied to an object of conveyance wind flowing in from the conveyed product conveyance cylinder 1A. ) Is attenuated, and the transport object T is 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. .
That is, for example, the lateral movement direction of the conveyance target T is induction-converted in the vertical direction (downward) by the conveyance object derivative 35 described later. It only has to be attenuated to such an extent that no force acts.

In conventional cyclone separation of conveyance objects, the conveyance air is caused to flow into the tank at a predetermined wind speed without being attenuated to generate a vertical vortex in the center of the tank, and the conveyance air and the conveyance object are separated by centrifugal force. Therefore, the transport air must be put in the tank so as not to be attenuated. However, in the present application, since the transport air is attenuated without using the centrifugal force and the transport target T is separated, the transport object is transported. By forming the tank 20 to a predetermined volume with respect to the cylinder 1A, the conveyance object T is separated from the conveyance air.
Accordingly, if the inner diameters of the conveyed product conveyance cylinder 1A and the exhaust cylinder 1B are substantially equal, the wind pressure (wind speed) of the suction conveyance air path 4 in the conveyance object conveyance cylinder 1A and the suction exhaust air path 25 of the exhaust cylinder 1B. Are substantially equal, the wind pressure (pressure) of the conveying air flowing in the tank 20 is attenuated, and the air in the tank 20 is exhausted from the exhaust port 23.

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.
That is, when the height of the side view case 30 is “1”, the height of the funnel 31 is “1 or less”.
Therefore, the height of the entire conveyed product separation device 16 can be suppressed, and the vertical installation space can be reduced.

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, if the height of the case portion 30 is about 350 mm, the height of the funnel portion 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.

3 and the following figures are embodiments in which the inflow horizontal cylinder 21 is provided between the conveyed product transfer cylinder 1A and the tank 20, and the exhaust horizontal cylinder 24 is provided between the exhaust cylinder 1B and the tank 20, respectively.
The base of the inflow horizontal cylinder 21 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 21.
An exhaust cylinder 1B is connected to the exhaust port 23 of the tank 20 via an exhaust horizontal cylinder 24.
The inflow horizontal cylinder 21 connects the conveyed product transfer cylinder 1A to the tank 20, but the inflow horizontal cylinder 21 is formed with a base that is largely open to match the entrance 22 of the tank 20. The connecting portion 33 at the tip is formed to have the same diameter as the conveyed product carrying cylinder 1 </ b> A, and the opening 22 has a larger opening area than the connecting portion 33.
Therefore, the pressure of the conveying wind from the conveyed product conveying cylinder 1A is also attenuated in the inflow horizontal cylinder 21 before entering the tank 20, and the separation of the conveying object T and the conveying wind is performed satisfactorily. The external shape can be reduced.

Similarly, the exhaust horizontal cylinder 24 is connected to the tank 20 to which the exhaust cylinder 1B is connected. However, the exhaust horizontal cylinder 24 is formed in the exhaust port 23 with a large opening at the base, The connecting portion 34 at the tip is formed to have the same diameter as that of the exhaust cylinder 1 </ b> B, and the exhaust port 23 is formed to have a larger opening area than the connecting portion 34.
Therefore, the suction pressure of the exhaust air that sucks the inside of the tank 20 is weak when exhausted from the exhaust port 23, and suppresses the attachment of the 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 slowed down, and the transport force of the transport wind flowing through the tank 20 is increased. The conveyance target T is not affected.
Accordingly, the transported material derivative 35 is provided between the entrance 22 and the exhaust 23 in the tank 20.
The conveyed product derivative 35 is formed in a U-shaped cross-section by providing vertical plate portions 39 having almost the same height from the left and right sides of the arc portion 38 having an arc shape when viewed from the side. The upper end 36 of the arc portion 38 is connected to the tank 20 at the upper end of the entrance 22, and the lower end 37 of the conveyed product derivative 35 of the arc portion 38 is positioned substantially vertically in the tank 20 in a side view.

The conveyed product derivative 35 guides the moving direction of the conveyed object T entering from the entrance 22 to the lower side of the tank 20.
That is, the conveying air entering the tank 20 is attenuated by the conveying air passing through the conveyed object conveying cylinder 1A, and the conveying object T is separated from the conveying air and is not affected by the conveying force of the conveying air. However, since the inertia force during the transport until then acts on the transport object T and moves toward the axial direction of the transport object transport cylinder 1A, the transport object derivative 35 changes the moving direction of the transport object T. It is guided and converted so as to be below the tank 20.
Therefore, the transfer object T transferred to the entrance 22 is guided by the transfer object derivative 35 without falling on the inner surface of the tank 20 and falls in the tank 20.

Thus, the lower end of the vertical plate portion 39 at the upper end 36 portion of the conveyed product derivative 35 is substantially coincident with the lower edge of the entrance 22, and the vertical height of the vertical plate portion 39 and the entrance 22 is formed to be substantially the same. The conveyance target T entering from the lower part of the mouth 22 is prevented from scattering in the width direction.
The entrance 22 is formed to be narrower than the left and right width of the tank 20, a predetermined gap S is formed between the left and right inner surfaces of the tank 20 and the left and right vertical plate portions 39, and the entrance 22 passes through the gap S from the entrance 22. The conveying air F is exhausted to the exhaust port 23 (FIGS. 3 and 5).
The transport object T entering from the entrance 22 hits the transport object derivative 35, and the transport air F is divided into left and right by the transport object derivative 35 and blows through the gap S and exits to the exhaust port 23.
For this reason, the transport air and the transport object T are further separated satisfactorily, resulting in a rational configuration.

In other words, the entrance 22 and the exhaust port 23 are provided so as to be relatively straight and the transport object derivative 35 is provided between the entrance 22 and the exhaust port 23, so that the transport object T is moved by the transport object derivative 35. Not only the direction is lowered, but also a rational configuration that makes the separation between the conveying air and the conveying object T good.
Further, the upper end 36 and the arc portion 38 of the conveyed product derivative 35 are formed to have substantially the same width as the exhaust port 23 in a plan view, and the conveyance object T is guided over the entire inner surface of the conveyed product derivative 35. The left and right vertical plate portions 39 are formed on the inclined surface 39A so as to have a narrow interval as it goes downward.
In addition, the conveying wind entering from the entrance 22 is attenuated and the conveying wind blowing through the tank 20 is weak, but by positioning the lower end 37 of the conveyed product derivative 35 below the exhaust port 23, The suction of the conveyance target T from the exhaust port 23 is prevented, and the adhesion of the deposit to the mesh member 26 of the exhaust port 23 is suppressed.

Accordingly, a mitigation device 40 that mitigates the shock of the fall of the conveyance object T is provided below the lower end 37 of the conveyance object derivative 35. The relaxation device 40 is formed to have a funnel portion 41 having a funnel shape that is narrower as the upper portion is opened and the lower portion is lowered. In the lower part of the funnel portion 41, a drop opening 42 is formed through which the transport target T flowing into the funnel portion 41 falls. Reference numeral 43 denotes an opening at the top of the funnel portion 41.
The relationship between the drop opening 42 and the opening 43 is set so that the amount dropped from the drop opening 42 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 43 rather than falling from the opening.
In this way, by configuring the funnel portion 41, the transport object T falling from the transport object derivative 35 falls onto the transport object T overflowing from the opening 43, and the transport object T is in the lower part in 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 45 is formed between the upper surface of the funnel portion 41 and the upper end 36 of the conveyed product derivative 35 and the conveyance target T stays in the funnel portion 41, the conveyance target T overflows from the gap 45 as well. Configure.
Therefore, the conveyance target T is configured to overflow from the entire circumference of the funnel portion 41.
The funnel portion 41 is fixed to the tip of the mounting arm 46 for mounting, and the base portion of the mounting arm 46 is fixed to the front plate portion 47 of the tank 20. The front plate portion 47 is detachably attached to the frame 48 of the tank 20.
In this case, a front opening 49 is formed in the frame 48, and the front plate 47 is attached so as to close the front opening 49.
Therefore, the funnel portion 41 can be removed together with the front plate portion 47, and the front opening portion 49 can be opened when the front plate portion 47 is removed, facilitating maintenance work such as cleaning in the tank 20.

In addition, the thickness of the opening 43 of the funnel portion 41 and the thickness of the mounting arm 46 are formed so as to be narrow so that the transport target T is not placed thereon, and the transport target T remains in the tank 20. To prevent.
Thus, left and right openings 50 are formed on the left and right sides of the frame 48, respectively, and a side lid 51 is detachably attached to the left and right openings 50.
Therefore, when the side cover 51 is removed, the left and right side openings 50 on the left and right sides of the tank 20 can be opened, and maintenance work such as cleaning inside the tank 20 is facilitated.
Further, when the side lid 51 is fixed by the wing nut 52, the side lid 51 can be attached and detached without a tool, thereby further facilitating maintenance work.
In addition, the entrance 22 is provided in the substantially front center of the tank 20, and the exhaust port 23 is formed so as to be relatively confined to the entrance 22, so that when the blow-in from the inflow horizontal cylinder 21 and the conveying air are exhausted from the exhaust 23, The conveying air is blown in a straight line, and the generation of air vortex around the longitudinal axis of the tank 20 in the tank 20 can be minimized, which is preferable.

Accordingly, a discharge and feeding mechanism 60 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 60 has a horizontal rotation shaft 62 mounted at the center of a drum 61 having a circular inner peripheral surface. The horizontal rotating shaft 62 is provided with a plurality of rotating blades 63 protruding in the radial direction and slidably contacting the inner periphery of the drum 61 at a predetermined interval in the rotating direction of the horizontal rotating shaft 62.
The tip of the rotary blade 63 is inclined obliquely with respect to the axial direction of the horizontal rotary shaft 62.
As shown in FIG. 16, the tip of the rotary blade 63 moves while intersecting the rim 65 of the entrance 64 at the top of the drum 61 to suppress the biting of the conveyance target T.
Between each rotary blade 63 and the inner peripheral surface of the drum 61, an inflow chamber 67 for guiding the conveyance target T to the drop port 66 below the drum 61 is formed.
Therefore, the funnel portion 41 of the mitigation device 40 is provided so as to be located on the rear side (back side) closer to the exhaust port 23 than the front and rear middle of the tank 20, and the discharge feeding mechanism 60 rotates the rotary blade 63 of the inlet 64. The ascending side is configured to be positioned below the funnel portion 41.
Therefore, most of the transport target T overflowing from the funnel portion 41 falls to the rotation rising side of the rotary blade 63 at the entrance 64, and the transport target T flows into the inflow chamber 67 formed by the rotary blade 63 of the discharge feeding mechanism 60. Make smooth and good.

As a result, the lower end 37 of the conveyed product derivative 35 is positioned above the side near the rear edge of the funnel portion 41 of the relaxation device 40, and is configured to guide the conveyed object T to the funnel portion 41.
For this reason, the lower end 37 of the conveyed product derivative 35 is positioned on the rear side (back side) closer to the exhaust port 23 than the front and rear middle of the tank 20, and the length from the entrance 22 to the lower end 37 of the inflow horizontal cylinder 21. Therefore, it is possible to expect an effect of attenuating the inertial force during the movement of the transport target T, and this also suppresses the damage of the transport target T.
An opening / closing mechanism 70 may be provided in place of the discharge / feeding mechanism 60. When the opening / closing mechanism 70 closes the dropping port 71, the entire inside of the transfer cylinder 1 including the inside of the tank 20 is sucked by the blower 2, and the opening / closing deformation valve 72 called a throat valve in the person skilled in the art is closed to suck. When stopped, the drop opening 71 is opened.
That is, the opening / closing deformation valve 72 is formed to be deformed by the suction pressure of the blower 2 by an elastic member such as rubber or synthetic resin.

  Accordingly, a dust cyclone (air cleaner) 75 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 75 is a well-known one, and any dust can be used as long as it separates and removes 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 75 is connected to the intake portion 3 of the blower 2.

(Operation of Example)
The tension shutter 12 of the tension hopper 10 is closed and the object to be transported 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 energize the blower 2. When the rear air passage opening / closing valve is opened, the air in the transport cylinder 1 is sucked by the blower 2, and thereby the pressure in the tank 20 of the transported article separating device 16 becomes negative.
In this state, when the tension shutter 12 of the tension hopper 10 is opened, 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. It reaches the tank 20 of the conveyed product separator 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.
Thus, in the tank 20, when the height of the case portion 30 configured by a substantially vertical surface in side view is “1”, the height of the funnel portion 31 configured by the inclined surface in side view is “1 or less”. Therefore, the height of the entire conveyed product separation device 16 can be suppressed, and the vertical installation space can be reduced.
Further, the transported article separating device 16 may be formed so that the transport wind is attenuated so that the volume of the tank 20 can be separated from the transport wind by the transport object T. The connection position of the transported article transport cylinder 1A to the tank 20 is sufficient. Therefore, it is possible to connect the conveyed product conveyance cylinder 1A by providing an entrance 22 on the side surface (front surface) of the tank 20 so that the conveyance air and the conveyance object T enter the tank 20 from the lateral direction. In this respect as well, the height of the entire conveyed product separating apparatus 16 can be suppressed, and the vertical installation space can be reduced.

Similarly, an 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. Even in this respect, the height of the entire conveyed product separating apparatus 16 can be suppressed, and the vertical installation space can be reduced.
Thus, the entrance 22 and the exhaust 23 are opposed to each other at a predetermined distance from the entrance 22 to form the exhaust 23, so that the attenuated carrier air flows from the entrance 22 to the exhaust 23, the conveyance air passing through the tank 20 is prevented from being swirled, the conveyance object T is prevented from sliding on the inner periphery of the tank 20, and the conveyance object T is damaged. To prevent.
Thus, the conveyed product transfer cylinder 1A is connected to the tank 20 via the inflow horizontal cylinder 21. The inflow horizontal cylinder 21 has a large opening at the base to form the entrance 22 and a connection portion at the tip of the inflow horizontal cylinder 21. 33 is formed to have the same diameter as the conveyed product conveying cylinder 1A and the opening 22 is formed to have a larger opening area than the connecting portion 33. Therefore, the pressure of the conveying air from the conveyed item conveying cylinder 1A is a tank. The inflow horizontal cylinder 21 before entering the tank 20 is also attenuated, and the separation of the conveyance object T and the conveyance 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 the exhaust horizontal cylinder 24, and the base of the exhaust horizontal cylinder 24 is opened larger than the exhaust cylinder 1B to form the 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.
Accordingly, a transported object derivative 35 is provided between the entrance 22 and the exhaust port 23 in the tank 20, and the transported object derivative 35 is provided at substantially the same height on both the left and right sides of the arc-shaped arc portion 38 as viewed from the side. A vertical plate portion 39 is provided to form a U-shaped cross section, the upper end 36 of the arc portion 38 is connected to the tank 20 at the upper end of the entrance 22, and the lower end 37 of the conveyed product derivative 35 of the arc portion 38 is a side surface. Since it is configured so as to be positioned substantially vertically in the viewing tank 20, the lateral movement direction is changed downward to the lower side of the tank 20 by the transport object derivative 35 of the transport object T that has jumped out from the entrance 22. Being induced.

Accordingly, the transport object T transported to the entrance 22 is guided by the transport object derivative 35 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 transport object T is slidably contacted with the arc portion 38 of the transport object derivative 35 to change the direction, but only changes direction, and the wind force of the transport wind does not act, so the centrifugal force of the transport wind that is not attenuated. In comparison with the cyclone separation method in which the inner periphery of the tank is slidably contacted, the transport target T is not damaged.
Since the vertical plate portion 39 at the upper end 36 of the circular arc portion 38 of the conveyed product derivative 35 is formed to have substantially the same width as the exhaust port 23 in plan view, the conveyed object T popping out from the entrance 22 is the entire inner surface of the conveyed product derivative 35. Induced by
Therefore, the transport object T does not pass through the transport object derivative 35 and adhere to the mesh member 26 of the exhaust port 23.
Therefore, since the entrance 22 and the exhaust 23 of the tank 20 are formed at substantially the same height and do not require a height difference, the height of the entire conveyed product separation device 16 is suppressed, and the vertical installation space is reduced. it can.

Thus, the conveyed product derivative 35 has a vertical plate portion 39 formed in a flange shape from the upper end 36 to the left and right sides of the arc portion 38 of the lower end 37, and the cross-sectional shape is formed in a “U” shape. Since the lower end of the vertical plate portion 39 at the upper end 36 portion of 35 is substantially coincident with the lower edge of the entrance 22, even the transport object T entering from the lower portion of the entrance 22 is scattered in the width direction. Suppress.
Therefore, the conveyance object T is guided by the conveyance object derivative 35 with certainty.
Thus, the entrance 22 is formed to be narrower than the left and right width of the tank 20, and a predetermined gap S is formed between the left and right inner surfaces of the tank 20 and the vertical plate portion 39. The object T hits the conveyed product derivative 35 and is discharged from below the tank 20, and the conveying air is divided into left and right by the conveyed object derivative 35, blows through the gap S, and exits to the exhaust port 23.
Therefore, also with the conveyed product derivative | guide_body 35, separation with a conveyance wind and the conveyance target T can be performed, separation can be made further favorable, and it becomes a rational structure.

That is, since the entrance 22 and the exhaust port 23 are provided in a straight line relative to each other, and the transport object derivative 35 is provided between the entrance 22 and the exhaust port 23, the transport wind is on the left and right sides of the transport object derivative 35. After passing through the gap S through the gap S and passing through the conveyance object derivative 35, the conveyance air again merges and passes through the exhaust port 23, and the conveyance object derivative 35 passes through the conveyance object T. In addition to changing the moving direction to the lower side, the conveyance air is divided into the left and right sides of the conveyance object derivative 35 so that the separation of the conveyance air and the conveyance object T can be made favorable.
In addition, since the mesh member 26 is provided in the exhaust port 23, and the mesh member 26 is formed in a scale smaller than the conveyance target T, the conveyance target T is not sucked from the exhaust port 23, but the exhaust horizontal cylinder 24 Since the suction pressure of the exhaust air sucked into the tank 20 is weakened when exhausted from the exhaust port 23 due to the presence of the gas, the adhesion of the adsorbed matter sucked into the net member 26 can be suppressed, so that the exhaust port 23 is clogged. In addition to preventing the lowering of the suction pressure of the entire transport cylinder 1 including the transported object transport cylinder 1A, the suction transport can be reliably realized.

Thus, since the mitigation device 40 for reducing the shock of the fall of the conveyance object T is provided below the lower end 37 of the conveyance object derivative 35, the conveyance object T falling from the conveyance object derivative 35 is provided with the relaxation device 40. This reduces the shock of dropping and suppresses the conveyance object T from being damaged.
The mitigating device 40 is formed with a thin funnel portion 41 as it goes downward with its upper part opened, and a dropping port 42 is formed at the lower part of the funnel portion 41 through which the transport object T flowing into the funnel portion 41 falls. When the transport object T transported from the transport object transport cylinder 1A falls on the funnel 41, a part of the drop opening 42 and the opening 43 falls from the drop port 42, but most of the transport object T Since it is configured to overflow from the opening 43 of the funnel portion 41, the transport target T falling from the transport derivative 35 falls onto the transport target T overflowing from the opening 43, and the transport target 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.

Thus, the transport object T overflowing from the funnel part 41 and the transport object T falling from the dropping port 42 of the funnel part 41 are transported by a substantially constant amount by the discharge and feeding mechanism 60 below the funnel part 31 of the tank 20. The object T is discharged and transferred to the next process.
Since the discharge / feeding mechanism 60 includes the rotary blade 63 that is rotated by the horizontal rotation shaft 62 on the drum 61, the discharge / feeding mechanism 60 falls from the conveyance target T overflowing from the funnel portion 41 and the dropping port 42 of the funnel portion 41. The conveyance target T flows into the drum 61 from the entrance 64 and is fed out from the drop port 66 by the rotary blade 63.
In this case, the funnel portion 41 of the mitigation device 40 is provided so as to be located on the rear side (back side) closer to the exhaust port 23 than the front and rear middle of the tank 20, and the discharge feeding mechanism 60 rotates the rotary blade 63 of the inlet 64. Since the ascending side is configured to be located below the funnel portion 41, the conveyance object T mainly enters the drum 61 from the rotation ascending side of the rotary blade 63 of the entrance 64 and smoothly enters the conveyance object T.・ Make good.

Further, since the predetermined gap 45 is formed between the opening 43 of the funnel portion 41 and the upper end 36 of the conveyed product derivative 35, the conveyance target T overflowing from the funnel portion 41 also overflows from the gap 45 and falls. .
Therefore, since the conveyance target T overflowing from the funnel portion 41 overflows from the gap 45 and falls, the conveyance target T is further supplied to the rotation rising side of the rotary blade 63 at the entrance 64.
Thus, the tip of the rotary blade 63 of the discharge feeding mechanism 60 is inclined obliquely with respect to the axial direction of the horizontal rotary shaft 62, so that the tip of the rotary blade 63 intersects the rim 65 of the inlet 64. It moves while suppressing the biting of the conveyance target T.
That is, when the tip of the rotary blade 63 is parallel to the axial center direction of the horizontal rotary shaft 62, the tip of the rotary blade 63 overlaps the lip 65 over the entire width of the lip 65 of the entrance 64 in plan view. Because of the movement, there is a possibility that the conveyance target T may be caught between the full width of the tip of the rotary blade 63 and the mouth edge 65, but the rotary blade is inclined with respect to the axial direction of the horizontal rotary shaft 62. Since the tip of 63 moves while intersecting the rim 65 of the entrance 64, the biting of the transport target T is suppressed.

Thus, the funnel portion 41 is fixed to the tip of the mounting arm 46 for mounting, the base of the mounting arm 46 is fixed to the front plate portion 47 of the tank 20, and the front plate portion 47 is fixed to the frame 48 of the tank 20. Since it is detachably attached, the funnel portion 41 can be removed together with the front plate portion 47 to perform maintenance work.
In this case, the front opening 49 is formed in the frame 48, and the front plate 47 is attached so as to close the front opening 49. Therefore, when the front plate 47 is removed, the front opening 49 is opened. Maintenance work of the funnel part 41 can be performed, and maintenance work such as cleaning of the tank 20 is facilitated.
In addition, left and right side openings 50 are formed on the left and right sides of the frame 48, and side lids 51 are detachably attached to the left and right side openings 50. Therefore, when the side lids 51 are removed, the left and right sides of the tank 20 are removed. The left and right opening 50 can be opened, and maintenance work such as cleaning in the tank 20 is facilitated.
Further, when the side cover 51 is removed and the left and right side openings 50 on both the left and right sides of the tank 20 are opened, the mesh member 26 of the exhaust port 23 is exposed. Therefore, the mesh member 26 can be attached and detached for maintenance work. make it easier.

Thus, since the tank 20 of the conveyed product separating device 16 has a substantially square planar shape, the volume of the tank 20 can be maximized with respect to the installation space, and the conveying air and the conveying object T can be separated efficiently. To improve.
In this case, the tank 20 is formed in a substantially square shape in plan view, and the inlet 22 of the inflow horizontal cylinder 21 is provided substantially in the center of the front of the tank 20, and the exhaust outlet 23 is made to face the inlet 22. If provided, the generation of air vortex around the longitudinal axis of the tank 20 in the tank 20 can be minimized when the air is blown from the inflow horizontal cylinder 21 and the conveying air is exhausted from the exhaust port 23. Is preferable.
Thus, the transport air separated from the transport object T in the tank 20 enters the exhaust cylinder 1B from the exhaust port 23, and the dust cyclone 75 separates and removes the dust mixed in the transport air (suction air), thereby blowing the air blower 2. To the intake portion 3 and exhausted from the exhaust port 5.

Thus, the conveying device H connects one end of the conveying cylinder 1 to the intake portion 3 of the blower 2, the other end of the conveying cylinder 1 is connected to the tension hopper 10, and the inside of the conveying cylinder 1 is entirely the suction conveying air passage 4. Since the storage tank 15 is provided in the middle of the suction conveyance air passage 4 via the conveyed product separating device 16 and conveyed, the object to be conveyed is transferred from the tension hopper 10 to the conveyed product separating device 16. Since the temperature is lower than that of the conveying method using the high-temperature and high-pressure exhaust conveying air that is conveyed by the suction air in the suction conveying cylinder 1A and compressed by the conventional air blower 2, particularly when the object T to be conveyed is rice, Minimizes the change in milling degree, prevents the generation of dry rice due to a decrease in moisture content, and minimizes the occurrence of cracked raw rice cracks, underwater cracks, shell cracks and crushed grains.
In addition, since the conveying air is discharged from the entrance 22 to the exhaust port 23 in the tank 20 in the tank 20, the conveyance object T in the tank 20 is conveyed in the tank as in the conventional cyclone system. The object does not float, and therefore, the “floating residual phenomenon” can be prevented, and as a result, the entire transport target T in the tank 20 can be discharged without stopping the blower 2. .
As a result, the working efficiency is improved and mixing of different types of residues is prevented.
Each of the above-described embodiments is illustrated or described separately or mixed for easy understanding. However, these can be combined in various ways, and the configuration, operation, and the like are limited by these expressions. Of course, there is a case where there is a synergistic effect.

  DESCRIPTION OF SYMBOLS 1 ... Conveyance cylinder, 1A ... Conveyance article conveyance cylinder, 1B ... Exhaust cylinder, 2 ... Blower, 4 ... Suction conveyance air path, 5 ... Exhaust port, 7 ... Storage tank, 10 ... Tension hopper, 11 ... Suction part, DESCRIPTION OF SYMBOLS 12 ... Stretching shutter, 16 ... Conveyed material separation device, 17 ... Conveyance device, 20 ... Tank, 21 ... Inflow horizontal cylinder, 22 ... Inlet, 23 ... Exhaust port, 24 ... Exhaust horizontal cylinder, 25 ... Suction exhaust air passage , 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, 39 ... Vertical plate part , 39A ... inclined surface, 40 ... relaxation device, 41 ... funnel part, 42 ... dropping port, 43 ... opening, 45 ... gap, 46 ... mounting arm, 47 ... front plate part, 48 ... frame, 49 ... front side opening 50, left and right side openings, 51 ... side lid, 52 ... wing nut, 60 ... discharge delivery Structure: 61 ... Drum, 62 ... Horizontal rotary shaft, 63 ... Rotary blade, 64 ... Inlet, 65 ... Mouth edge, 66 ... Drop opening, 67 ... Inlet chamber, 70 ... Opening / closing mechanism, 71 ... Drop opening, 72 ... Opening and closing deformation valve.

Claims (4)

  A storage tank 7 is connected to a transport cylinder 1 that is connected to an air intake section 3 of the blower 2 and transports a transport target T by suction transport air, and is connected to the transport cylinder 1 between the storage tank 7 and the blower 2. Is provided with a transport object separating device 16 for separating the transport object T from the storage tank 7 from the transport air F, and the transport object separating device 16 is provided at the entrance 22 provided in the tank 20 having an arbitrary shape. Of the transport cylinder 1 that transports the transport target T by suction transport air and is connected to the air intake section 3, and the transport port 1 </ b> A is connected to the exhaust port 23 that exhausts the air in the tank 20. The exhaust cylinder 1B of the cylinders 1 is connected, the tank 20 is formed to have a relatively large volume with respect to the inner diameter of the conveyed product conveying cylinder 1A, and conveys conveying air from the conveyed object conveying cylinder 1A. Conveying wind configured to be attenuated so that the object T can be separated In the tank 20, the moving direction of the conveying object T entering the tank 20 in the lateral direction from the entrance 22 is guided and converted to be below the tank 20. The tank 20 below the lower end 37 of the transport material derivative 35 has a thin funnel portion 41 as it goes downward with the upper part opened to relieve the shock of dropping of the transport object T. The funnel portion 41 is fixed to the tip of the mounting arm 46, the base of the mounting arm 46 is detachably attached to the inner surface of the tank 20, and the air flow from the entrance 22 is The width of the tank 20 in the direction intersecting the entry direction is at least twice as large as the inner diameter of the transported article transport cylinder 1A, and thus has a relatively large volume with respect to the inner diameter of the transported article transport cylinder 1A. Form was conveying device.   In Claim 1, the said conveyed product derivative | guide_body 35 is a separate body from the said conveyed product conveyance cylinder 1A and the said tank 20, Comprising: The vertical board of the substantially same height from the beginning to the left and right both sides of the circular arc part 38 of a side view arc shape. A conveying device in which a portion 39 is provided to form a U-shaped cross section, and an upper end 36 of the arc portion 38 is attached to the upper surface side in the tank 20.   In Claim 2, the lower ends of the left and right vertical plate portions 39 of the upper end 36 of the arc portion 38 of the conveyed product derivative 35 are formed to substantially coincide with the height of the lower edge of the entrance 22 formed in the tank 20. Conveying device.   4. The transport object transport cylinder according to claim 1, 2 or 3, wherein a base portion is largely opened at the entrance 22 and a leading end is formed through an inflow horizontal cylinder 21 having the same diameter as the transport object transport cylinder 1A. A transport device configured to connect to 1A.

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