JP4223301B2 - Residual granular material discharge mechanism of granular material conveying device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a residual particulate discharge mechanism of a granular material transport vehicle that stores and transports powder, such as cement, rice, plastic beads, animal feed, fertilizer, etc., and transfers it to a discharge target portion such as a storage tank. The object is to discharge the particles remaining in the transfer path to the outside and reduce the residual amount in the apparatus.
[0002]
[Prior art]
[Patent Document 1]
Japanese Utility Model Publication No. 63-42042 [Patent Document 2]
Japanese Patent Laid-Open No. 7-215119
Conventionally, as a granular material transporting device such as cement, rice, plastic beads, animal feed, fertilizer, etc., in the device described in Patent Document 1 and the invention described in Patent Document 2, a storage unit for storing the granular material A floor screw conveyor for transferring the powder particles in the horizontal direction via a damper is disposed in the floor casing on the lower surface of the storage tank, and the powder particles are transferred in the horizontal direction by the floor screw conveyor, There was something to be discharged to the discharge target department.
[0004]
[Problems to be solved by the invention]
However, due to the transfer operation of the powder particles, the powder particles are likely to remain at the bottom of the floor casing, which is the transfer path of the powder particles, and the powder particles are wasted. Furthermore, if other types of granular materials are transferred using the granular material transport device with the residual granular materials left untreated, there is a problem that many residual granular materials are mixed into the granular materials. Arise. In order to prevent this problem, it was necessary to open the bottom lid of the apparatus and manually remove the residual powder and the like, which was inefficient.
[0005]
In particular, in bulk vehicles and the like for transporting livestock feed such as horses, cattle, pigs, and chickens, a storage section partitioned into a plurality of storage rooms is provided, and different types of feed are stored in each storage room. The feed is transported and discharged individually for each storage room, but each feed is transported using the same transport path. Therefore, if there is a large amount of residual feed in the transfer route, a large amount of the residual residual feed will be mixed when other different feeds are discharged, and the feedability of livestock will be deteriorated, or non-fermentable feed and fermentable feed When mixed with, it causes problems such as affecting livestock that are not adapted. Moreover, the same malfunction also arises in feed mixed with drugs and the like. However, if the transfer route is cleaned manually or the like for each feed transfer / discharge operation, the work efficiency is lowered.
[0006]
The present invention is intended to solve the above-described problems, and in the granular material transport device, the residual granular material capable of reducing the residual of the granular material in the transfer path of the granular material. It is possible to obtain a body discharge mechanism and to use the granular material without waste, and to prevent the residual granular material from being mixed into other granular materials that are transferred by the same transfer route. To do. Further, such a residual granular material mechanism can be manufactured at a low cost with a simple structure.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention forms a storage unit for the granular material on the upper surface of the floor screw conveyor that transports the granular material in the horizontal direction, and the damper and the floor screw conveyor are separated by a damper. A plurality of wind shields are projected at regular intervals on the inner surface of the damper in a direction crossing the transfer direction axis of the granular material, and a blower is disposed on the transfer source side of the floor screw conveyor to form the granular material. The pressurized air can be introduced in the transfer path from the transfer source to the transfer destination, and the pressurized air collides with the wind shield plate and flows in parallel with the transfer direction axis of the granular material. By directing the flow to the bottom surface of the floor screw conveyor, the particles remaining on the bottom surface of the floor screw conveyor can be scattered and transferred to the destination direction. Than is.
[0008]
Further, the wind shield plate may be provided on the lower surface of the damper so as to project at right angles to the axis of the powder particle transfer direction.
[0009]
The wind shield may be formed of an elastic material.
[0010]
Further, the wind shield plate may be formed of an inelastic material.
[0011]
Further, the wind shield plate may be formed by forming the connection side with the damper with an inelastic material and forming the floor screw conveyor side with an elastic material.
[0012]
In addition, the granular material transport device is a bulk car, a floor screw conveyor that transfers the granular material in the horizontal direction, and a vertical screw conveyor that transfers the granular material transferred by the floor screw conveyor in the vertical direction, You may form with the boom screw conveyor which transfers the granular material transferred to the vertical direction with this vertical screw conveyor to a discharge target part.
[0013]
[Action]
Since the present invention is configured as described above, in order to transfer the granular material stored in the storage unit of the granular material transporting device, a damper for separating the storage unit and the floor screw conveyor is opened. In addition to introducing the granular material in the storage section to the floor screw conveyor side, the floor screw conveyor is rotated. With the rotation of the floor screw conveyor, the granular material is transferred from the transfer source to the transfer destination in the transfer path, and discharged from a discharge port provided at the transfer destination to a discharge target portion such as a storage tank.
[0014]
And after the completion of the transfer operation of the granular material, in order to discharge the granular material remaining in the transfer path, the damper that has been opened for the transfer of the granular material is closed, the storage unit and the floor screw While separating between conveyors, the upper surface of a floor screw conveyor is coat | covered with a damper. Next, while rotating the floor screw conveyor, the blower arranged on the transfer source side of the floor screw conveyor is operated, and pressurized air is supplied from the transfer source to the transfer destination in the transfer path of the granular material. Introduce.
[0015]
A part of the pressurized air introduced into the transfer path blows away the residual granular material in the transfer destination direction while flowing in the transfer path direction spirally along the floor screw conveyor. A part of the fluid flows in a space between the upper surface of the floor screw conveyor and the lower surface of the damper substantially in parallel with the transport direction axis. By making this pressurized air collide with a wind shield projecting in a direction crossing the transfer direction axis and directing the flow of pressurized air flowing parallel to the transfer direction axis toward the lower surface of the floor screw conveyor, Wind up while scattering powder particles remaining on the bottom of the screw conveyor. Then, the scattered powder particles are transferred in the transfer destination direction by the wind pressure of the pressurized air and the rotation of the floor screw conveyor.
[0016]
Then, the powder remaining on the lower surface of the floor screw conveyor is repeatedly generated by repeating the collision of the pressurized air to the plurality of wind shielding plates, the scattering of the residual granular material by the pressurized air, and the transfer in the transfer destination direction. It is possible to reliably transfer the particles in the direction of the transfer destination and discharge them from the transfer path, and the amount of particles remaining in the particle transport device can be significantly reduced compared to the conventional method. Become.
[0017]
In addition, the windshield plate may be arranged to intersect at any angle with respect to the transfer direction axis as long as it can change the flow by colliding with pressurized air, but on the lower surface of the damper, If a windshield plate is provided at a right angle to the transfer direction axis of the granular material, it becomes possible to direct the flow of pressurized air that collides with this windshield plate almost perpendicularly to the bottom surface direction of the floor screw conveyor, Pressurized air hits the bottom of the transfer path strongly, and the effect of scattering and rolling up the powder can be enhanced.
[0018]
In addition, the windshield is formed such that it is not bent by the wind pressure of the pressurized air, so that the intersection with the transfer direction axis is not released. In addition to making it possible to direct the flow toward the lower surface, it is formed so as not to cause breakage or the like due to collision of the granular material during transfer of the granular material. Therefore, if the wind shielding plate is made of an elastic material such as a relatively strong rubber material, it is possible to prevent bending due to the wind pressure of the pressurized air. When a large granular material or lump collides strongly, the windshield can be easily passed through by elastically deforming the wind shield. Therefore, the wind shielding plate is difficult to prevent the flow of the granular material, and the granular material is prevented from being clogged in the distribution channel, thereby enabling smooth transfer. In addition, even when powder particles or lumps with a large particle size collide during transfer of powder particles or when powder particles are scattered by pressurized air, the windshield is damaged by the flexible elastic force of the elastic material. The prevention effect can be improved.
[0019]
In addition, if the wind shield is made of an inelastic material such as an iron plate, the connection strength between the wind shield and the damper becomes strong, and the wind shield is easily deformed or broken by collision of powder or pressurized air. It has excellent durability without any problems. And it becomes possible to introduce the pressurization air of higher pressurization force, and can raise the scattering roll-up effect of the granular material in a distribution channel. Thus, when forming a windshield board with nonelastic materials, such as an iron plate, it is suitable for transferring a granular material with a small particle size.
[0020]
In addition, if the windshield plate is formed of a non-elastic material such as an iron plate on the connection side with the damper and the floor screw conveyor side is formed of an elastic material such as a relatively strong rubber material, the non-elastic material The connection strength between the windshield and the damper is strengthened, the impact resistance to the pressurized air and powder is increased, and the elastic material part of the windshield is elastically deformed when the powder is transferred. By doing so, the flow of the granular material is not hindered, the clogging of the granular material is prevented and smooth transfer is possible, and a windshield having the advantages of both an elastic material and an inelastic material is obtained. I can do things.
[0021]
Moreover, the residual granular material discharge mechanism of the granular material conveying device of the present invention can be installed in any granular material conveying device as long as the granular material is conveyed by a floor screw conveyor. Suitable for use in cars. In other words, many bulk vehicles divide the storage section into a plurality of storage rooms and store different types of feed, and the different types of feed are individually transferred to the storage target section for each storage room. Although it discharges, the transfer of each feed is performed using the same distribution channel. Therefore, if there is a large amount of residual granular material in the distribution channel, the next residual granular material will be mixed when the next feed is transferred, reducing the palatability of livestock. This causes problems such as causing problems and affecting livestock that is not adapted to a mixture of non-fermentable feed and fermentable feed. Moreover, every time the feed to be transferred is changed, if the distribution channel is strictly cleaned, the transfer operation becomes inefficient. Therefore, by providing the residual granular material discharge mechanism of the present invention in the bulk vehicle, the residual granular material to the transfer route can be reduced, and contamination of the feed can be prevented well, and a plurality of It is possible to efficiently perform different feed transfer operations.
[0022]
【Example】
An example in which the present invention is implemented in a bulk vehicle for transporting feed will be described below with reference to the drawings. (1) is a bulk vehicle for transporting feed, having a particle size of several centimeters and tens of centimeters from powdered feed. A granular material such as lump feed can be filled and stored in the storage section (2). Further, in this embodiment, as shown in FIG. 1, the storage portion (2) is divided into three to provide first to third storage chambers (3), (4) and (5), each of which has a material and a particle size. It is possible to supply three types of feed with one bulk car (1).
[0023]
The floor screw conveyor (7) is horizontally connected to the lower end of the storage part (2) in the floor casing (17) disposed via the damper (6), and the particles are transferred in the horizontal direction. It is supposed to be possible. The floor screw conveyor (7) corresponds to the vertical screw conveyor (8) arranged in the vertical direction on the rear side of the bulk vehicle (1) which is the transfer destination direction. The vertical screw conveyor (8) is arranged in a cylindrical vertical casing (18) communicating with the floor casing (17), and transfers the granular material in the vertical direction.
[0024]
Moreover, this vertical screw conveyor (8) is located on the upper surface of the storage part (2) and is made to correspond to the boom screw conveyor (10) arranged in the cylindrical boom casing (20). Then, the granular material transferred in the vertical direction by the vertical screw conveyor (8) is transferred by a boom screw conveyor (10) to an appropriate discharge target part (not shown) such as a feed inlet of a feed tank, From the discharge port (11) opened to the transfer destination, it can be discharged to the discharge target section.
[0025]
The floor screw conveyor (7), vertical screw conveyor (8), and boom screw conveyor (10) are all formed by fixing a helical blade (13) to the outer periphery of a straight pipe (12). Yes.
[0026]
The damper (6) that separates the floor screw conveyor (7) and the storage part (2) includes a pair of plate-like base parts (14) that are long in the direction of the transfer direction, and the shaft support part (15). As shown in FIGS. 4 and 5, the storage part (2) and the floor screw conveyor (7) are separated or moved by the vertical movement of the opening / closing arm (16). Communication is possible.
[0027]
The damper (6) has a pair of base parts by lowering the open / close arm (16) as shown in FIG. 4 when the granular material is not introduced from the storage part (2) into the floor casing (17). (14) is arranged on the outer periphery of the floor screw conveyor (7) in a letter C shape, separating the storage part (2) and the floor screw conveyor (7), so that the granular material in the storage part (2) is the floor It is not introduced into the casing (17). On the other hand, when the granular material is introduced into the floor casing (17), the pair of base parts (14) rotate in the directions close to each other with the shaft support part (15) as a fulcrum by raising the open / close arm (16). The storage portion (2) communicates with the inside of the floor casing (17) by moving and folding, and the granular material in the storage portion (2) is introduced into the floor casing (17).
[0028]
The damper (6) is formed so as to be opened and closed independently for each of the first to third storage chambers (3), (4), and (5), and the first to third storage chambers (3), (4), (5) are formed. ) Different types of granular materials can be individually introduced into the floor casing (17) and transferred one by one. Further, as shown in FIGS. 4 and 5, a damper cover (21) is disposed on the upper surface of the damper (6) to introduce the granular material from the storage portion (2) into the floor casing (17). At this time, it is possible to prevent the damage by preventing the shock at the time of dropping of the granular material from being directly applied to the damper (6).
[0029]
1 to 5, the damper (6) has a pair of wind shielding plates (22) on the inner surface of the pair of base portions (14) on the floor casing (17) side. A plurality of pairs project at a predetermined interval perpendicular to the transfer direction axis. Furthermore, a blower (23) is disposed as shown in FIG. 1 on the front side of the bulk vehicle (1) as a transfer source of the floor screw conveyor (7), and pressurized air is introduced into the floor casing (17), The granular material remaining in the floor casing (17) can be transferred from the transfer source to the transfer destination.
[0030]
In addition, as shown in FIGS. 4 and 5, the wind shield plate (22) is formed of a non-elastic material such as an iron plate on the side fixed to the base portion (14) and provided with a non-elastic portion (24). It is possible to prevent breakage and bending due to collision of pressurized air and granular material. In addition, the wind shield (22) is provided with an elastic portion (25) by forming the floor screw conveyor (7) side, which is frequently in contact with the granular material, with an elastic material such as a relatively strong rubber material. Thus, although it is not easily bent by the impact of the collision of pressurized air, it is possible to satisfactorily prevent the damage caused by the collision of the granular material. In such a wind shielding plate (22), even when a large particle size or a lump is collided during the transfer operation of the granular material by the floor screw conveyor (7), the elastic portion (25) made of rubber material By elastically deforming, the flow of the granular material is not hindered, the clogging of the granular material is prevented, and the granular material can be smoothly transferred. On the other hand, when discharging the residual granular material, the compressed air that collides with the wide area including the inelastic part (24) and the elastic part (25) collides with the compressed air flowing in parallel with the transfer direction axis. The direction of the flow can be surely directed to the lower surface direction, and it is possible to enhance the effect of scattering and winding up the granular material.
[0031]
The transfer operation of the granular material and the discharge operation of the residual granular material in the bulk vehicle (1) formed as described above will be described. First, in the bulk vehicle (1) of this embodiment, a plurality of powders having different particle sizes and materials, such as animal feed, are placed in the first to third storage chambers (3), (4), and (5) of the storage unit (2). Granules can be stored separately from each other. And in order to perform the transfer work of the granular material of the first storage chamber (3), the discharge port (11) provided at the transfer destination of the boom screw conveyor (10) is appropriately discharged, such as the feed port of the feed tank. Place it facing the target section.
[0032]
Next, the opening / closing arm (16) on the first storage chamber (3) side is lifted to open the damper (6) on the lower end side of the first storage chamber (3) as shown in FIG. The chamber (3) communicates with the floor casing (17), and the floor screw conveyor (7), the vertical screw conveyor (8), and the boom screw conveyor (10) are rotated. By these operations, the granular material in the first storage chamber (3) is introduced into the floor casing (17), and the granular material moves through the floor casing (17) by the rotation of the floor screw conveyor (7). It is transferred in the direction of the vertical screw conveyor (8).
[0033]
In addition, since the damper (6) is closed on the second and third storage chambers (4) and (5) side, the powder particles stored in these are not introduced into the floor casing (17). Absent. In addition, on the lower surface side of the second and third storage chambers (4) and (5), as shown in FIG. 3, the wind shielding plate (22) is disposed close to the outer periphery of the floor screw conveyor (7). There is a possibility that the granular material transferred by the floor screw conveyor (7) collides with the wind shield plate (22) and the flow is blocked. However, since the elastic part (25) of the wind shield (22) is elastically deformed and bent in the direction of the transfer destination, not only small particles but also large particles or massive particles Even if it exists, it can flow easily in the direction of the transfer destination, preventing clogging and the like, and enabling smooth transfer of the granular material.
[0034]
The granular material transferred in the horizontal direction in the floor casing (17) is then transferred in the vertical direction in the vertical casing (18) by the vertical screw conveyor (8). The particles transferred in the vertical direction are transferred in the boom casing (20) in the direction of the discharge port (11) by the boom screw conveyor (10) and discharged from the discharge port (11) to the discharge target section. It is. Further, when the transfer operation of the powder particles in the first storage chamber (3) is completed, the damper (6) is closed as shown in FIG. 3) and the inside of the floor casing (17) are separated, and the upper surface of the floor screw conveyor (7) is covered with a damper (6).
[0035]
Subsequent to the transfer operation of the granular material in the first storage chamber (3), the transfer operation of the granular material in the second or third storage chamber (4) (5) is performed. In particular, at the bottom of the floor casing (17), the granular material of the first storage chamber (3) that has been previously transferred remains. In order to prevent this residual granular material from being mixed into the granular material in the second or third storage chamber (4) (5) to be transferred next, the residual granular material is discharged from the transfer path. Must be done in advance.
[0036]
For this purpose, the floor screw conveyor (7), the vertical screw conveyor (8), and the boom screw conveyor (10) are rotated while the damper (6) is closed and the floor screw conveyor (7) is covered. The blower (23) installed on the transfer source side of the floor screw conveyor (7) is operated to introduce pressurized air into the floor casing (17) from the transfer source to the transfer destination.
[0037]
The pressurized air introduced into the transfer path flows in a spiral manner along the surface of the blade (13) of the floor screw conveyor (7) in the floor casing (17) while moving in the transfer destination direction. The granular material remaining at the bottom of 17) is scattered and wound up, and the granular material is transferred in the transfer destination direction by the wind pressure and rotation of the floor screw conveyor (7).
[0038]
Furthermore, the pressurized air flowing in the space between the upper surface of the floor screw conveyor (7) and the damper (6) substantially parallel to the transfer direction axis protrudes perpendicularly to the transfer direction axis at the flow destination. It collides with the plate (22) and flows with its flow direction changed substantially at right angles to the lower surface of the floor screw conveyor (7) as shown by the arrows in FIG. The pressurized air collides with the bottom of the floor casing (17) at a substantially right angle, which increases the effect of scattering and rolling up residual powder remaining on the bottom, and promotes the transfer of powder in the direction of the transfer destination. Is done.
[0039]
Since a plurality of wind shielding plates (22) are projected from the damper (6) at a predetermined interval, the collision of the pressurized air with the wind shielding plate (22) and the scattering of the residual particulate matter are repeated. As a result, most of the particles remaining in the floor casing (17) can be transferred to the vertical screw conveyor (8) side. The residual granular material is transferred in the vertical direction by the wind pressure of the pressurized air flowing spirally in the vertical casing (18) and the rotation of the vertical screw conveyor (8), and then the boom screw conveyor (10 ) Is transferred through the boom casing (20) and discharged from the discharge port (11) to the outside.
[0040]
Further, the vertical casing (18) and the boom casing (20) have cylindrical shapes having inner diameters close to the outer diameters of the vertical screw conveyor (8) and the boom screw conveyor (10), respectively, so that the vertical screw conveyor (8) and With the rotation of the boom screw conveyor (10) and the wind pressure of the pressurized air, it is possible to transfer the granular material to the discharge port (11) and discharge it to the discharge target part without producing any residue.
[0041]
In this way, the transfer function of the granular material, especially the discharge function of the granular material remaining in the floor casing (17) is enhanced, and the residual granular material does not interfere with the transfer work of other granular materials In addition, it is possible to use the granular material in the first storage chamber (3) without waste.
[0042]
For example, when transferring the granular material in the second storage chamber (4) after the discharge operation of the residual granular material, only the damper (6) at the lower end of the second storage chamber (4) is opened, The granular material in the second storage chamber (4) is introduced into the floor casing (17). This granular material is transferred in the horizontal direction in the floor casing (17) by the floor screw conveyor (7), and then transferred in the vertical direction in the vertical casing (18) by the vertical screw conveyor (8). It is transferred in the direction of the discharge port (11) by the boom screw conveyor (10), and discharged from the discharge port (11) to the discharge target portion. And as mentioned above, since the residual granular material in a transfer path is discharged | emitted favorably by the residual granular material discharge | emission operation | work previously performed, it is 1st to the granular material of a 2nd storage chamber (4). It is difficult for the granular material in the storage room (3) to be mixed, and the quality of the granular material and the feeding property of livestock can be improved. Moreover, when transferring non-fermentable feed and fermentable feed separately, the malfunction that these are mixed is prevented and it does not affect livestock. Moreover, even in the case of feed mixed with a medicine or the like, it is possible to prevent the influence on livestock that is not adapted to the medicine.
[0043]
In addition, the transfer of the granular material in the third storage chamber (5) following the transfer of the granular material in the second storage chamber (4) is also performed by the residual granular material discharge mechanism of the present invention. Discharge residual particles in the path. By this discharge operation, it is possible to extremely reduce the residual powder in the second storage chamber (4) in the transfer path, and to prevent foreign matter from entering the powder in the third storage chamber (5). It is possible to supply high quality and granular material with high livestock feeding ability.
[0044]
As described above, when a plurality of types of granular materials are stored in one bulk car (1) and individually transferred using the same distribution channel, the residual granular material discharging mechanism of the present invention is used. By discharging the residual granular material from the transfer path, it is possible to prevent mixing of different types of granular material, and to supply high-purity granular material, Use without waste is possible. Moreover, the bulk vehicle (1) can be easily cleaned.
[0045]
In the above embodiment, the storage unit (2) is divided into three storage chambers (3), (4), and (5) so that three types of different granular materials can be stored. It may be formed without partitioning so that only one type of granular material can be stored and supplied in large quantities. Even in this case, it is possible to use the granular material without waste by discharging the residual granular material satisfactorily by the residual granular material discharging mechanism, and newly storing different types of granular particles in the storage unit (2). Even if the body is stored and transported, the previous residual granular material is not likely to be mixed into the granular material, and it is possible to supply a highly pure granular material.
[0046]
Moreover, although the residual granule discharge | emission mechanism of this invention is provided in the bulk vehicle (1) for feed conveyance in the said Example, as long as it transfers a granular material, it will be any other granular material It can also be carried out with a transport device.
[0047]
【The invention's effect】
Since the present invention is configured as described above, when discharging the residual granular material by the pressurized air, the residual air particles are made to collide with the wind shielding plate by causing the compressed air to collide the flow toward the bottom surface. The effect of scattering and rolling up the body can be enhanced, and the transfer of the residual granular material in the direction of the transfer destination can be promoted. Therefore, the function of discharging the residual granular material to the outside is improved, the residual granular material in the transfer path can be extremely reduced, and the granular material can be used without waste. In addition, even if different types of granular materials are transferred individually using the same granular material transport device, different types of residual granular materials transferred last time are mixed into the granular materials to be transferred later. This makes it possible to supply high-purity powder particles, and saves the trouble of cleaning the transfer path, thereby improving the work efficiency of the powder particle transfer operation.
[Brief description of the drawings]
FIG. 1 is an overall view of a bulk vehicle provided with a residual particulate discharge mechanism according to an embodiment of the present invention.
FIG. 2 is a main cross-sectional view near the floor screw conveyor.
FIG. 3 is a partially enlarged view of FIG. 2;
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a cross-sectional view when the damper is opened.
[Explanation of symbols]
2 Storage 6 Damper 7 Floor screw conveyor 8 Vertical screw conveyor 10 Boom screw conveyor 22 Wind shield plate 23 Blower

Claims (6)

A storage unit for the granular material is formed on the top surface of the floor screw conveyor that transports the granular material in the horizontal direction, and the storage unit and the floor screw conveyor can be separated by a damper. A plurality of wind shields are projected at regular intervals in the direction crossing the transfer direction axis, and a blower is arranged on the transfer source side of the floor screw conveyor to move the inside of the powder particle transfer path from the transfer source to the transfer destination direction. Make it possible to introduce pressurized air and make this pressurized air collide with the wind shield plate to direct the flow of pressurized air flowing parallel to the transport direction axis of the granular material toward the bottom surface of the floor screw conveyor. The particulate material remaining on the lower surface of the floor screw conveyor is scattered to enable transfer in the direction of the transfer destination. Mechanism. 2. The residual granular material discharging mechanism of the granular material conveying device according to claim 1, wherein the wind shielding plate is provided on the lower surface of the damper so as to project at right angles to the axis of the granular material in the transfer direction. 3. The residual granular material discharging mechanism of the granular material conveying apparatus according to claim 1, wherein the wind shielding plate is formed of an elastic material. 3. The residual granular material discharge mechanism of the granular material conveying device according to claim 1 or 2, wherein the wind shielding plate is formed of an inelastic material. The windshield plate is formed of a non-elastic material on the connection side with the damper and formed on the floor screw conveyor side with an elastic material. Residual particulate discharge mechanism. The granular material transport device is a bulk vehicle, and includes a floor screw conveyor for transferring the granular material in the horizontal direction, a vertical screw conveyor for transferring the granular material transferred by the floor screw conveyor in the vertical direction, and the vertical screw conveyor. The residual granular material discharging mechanism of the granular material conveying apparatus according to claim 1, wherein the granular material transferred in the vertical direction by the screw conveyor is formed by a boom screw conveyor that transfers the granular material to the discharge target portion.

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