JP2023108538A - Grain dryer - Google Patents

Abstract

To prevent grain conveyance by conveyance means from being hindered.SOLUTION: In the grain dryer, grain flows down on a pair of filling flow plates 36 and is fed into a lower screw conveyer 44. A pair of regulation plates 40 regulate the feed rate of grain being fed into the lower screw conveyer 44. Thereby, grain conveyance by the lower screw conveyer 44 can be prevented from being hindered by grain being fed into the lower screw conveyer 44. In addition, the pair of regulation plates 40 keep the upper part of the lower screw conveyer 44 open. Thereby, grain conveyance by the lower screw conveyer 44 can be prevented from being hindered by the pair of regulation plates 40.SELECTED DRAWING: Figure 5

Description

The present invention relates to a grain drying device in which grain is dried.

In the grain drying apparatus described in Patent Document 1 below, the grains in the machine body are supplied from the shutter drum to the lower screw conveyor through the jam plate, and the lower screw conveyor conveys the grains.

Here, in this grain drying apparatus, it is preferable to be able to suppress obstruction of grain transportation by the lower screw conveyor.

Japanese Utility Model Laid-Open No. 5-69593

SUMMARY OF THE INVENTION It is an object of the present invention to provide a grain drying apparatus capable of suppressing obstruction of grain transportation by a transportation means.

The grain drying device according to claim 1 comprises a device body in which grain is dried, a conveying means provided below the device body for conveying the grain, and provided above the conveying means, a regulating part that regulates the amount of grains supplied to the conveying means and opens the upper part of the conveying means.

The grain drying apparatus according to claim 2 is the grain drying apparatus according to claim 1, wherein the restricting section is arranged on both sides of the conveying means.

The grain drying apparatus according to claim 3 is the grain drying apparatus according to claim 1 or claim 2, wherein the size of the grain supply path to the conveying means is adjusted by the regulation section so that the regulation section is The amount of grain supplied to the conveying means is regulated.

The grain drying apparatus according to claim 4 is the grain drying apparatus according to any one of claims 1 to 3, in which the grain is supplied to the conveying means, and the regulating portion is above the grain supply position. is stretched.

The grain drying apparatus according to claim 5 is the grain drying apparatus according to any one of claims 1 to 4, wherein the regulating portion regulates a portion of the conveying means opposite to the grain conveying direction. The amount of grain supplied to the conveying means is increased.

In the grain drying device according to claim 1, the grain is dried inside the device body. Further, a conveying means is provided on the lower side of the apparatus main body, and the conveying means conveys the grain.

Here, a regulating portion is provided above the conveying means, and the regulating portion regulates the amount of grains supplied to the conveying means. Therefore, it is possible to prevent grains supplied to the conveying means from interfering with the conveyance of the grains by the conveying means. Furthermore, the restricting portion opens the upper side of the conveying means. Therefore, it is possible to prevent the restricting portion from hindering the transportation of the grain by the transportation means.

In the grain drying apparatus according to claim 2, the regulating portions are arranged on both sides of the conveying means. Therefore, even when the grains are supplied to the conveying means from both sides, it is possible to prevent the grains supplied to the conveying means from hindering the conveyance of the grains by the conveying means.

In the grain drying apparatus according to claim 3, the size of the grain supply path to the conveying means is adjusted by the regulation section, and the regulation section regulates the amount of grain supplied to the conveying means. Therefore, with a simple configuration, the regulation section can regulate the amount of grains supplied to the conveying means.

In the grain drying apparatus according to claim 4, the feeding means feeds the grain to the conveying means.

Here, the regulating portion extends above the grain feeding position of the feeding means. Therefore, it is possible to prevent the grains supplied by the supply means from exceeding the upper side of the regulating portion.

In the grain drying apparatus according to claim 5, the amount of grain supplied to the conveying means regulated by the regulating portion is increased at the portion of the conveying means opposite to the grain conveying direction. Therefore, the amount of grain to be conveyed can be increased at the portion of the conveying means opposite to the grain conveying direction.

It is a partially broken side view (a perspective view in the lower part) seen from the right side showing the grain drying apparatus according to the embodiment of the present invention. 1 is a front sectional view showing a grain drying apparatus according to an embodiment of the present invention; FIG. It is the perspective view seen from the diagonally right front which shows the lower part of the grain drying apparatus which concerns on embodiment of this invention. It is the perspective view seen from the diagonally right front which shows the lower end part of the grain drying apparatus which concerns on embodiment of this invention. It is a sectional view seen from the front showing the lower end of the grain drying apparatus according to the embodiment of the present invention. It is a sectional view seen from the right side showing the lower end portion of the grain drying apparatus according to the embodiment of the present invention.

FIG. 1 shows a side view of a circulation type grain drying apparatus 10 according to an embodiment of the present invention as viewed from the right side, and FIG. 2 is a sectional view of the grain drying apparatus 10 as viewed from the front. is indicated by Further, FIG. 3 shows a perspective view of the lower part of the grain drying apparatus 10 as seen obliquely from the front right. In the drawings, an arrow FR indicates the front of the grain drying apparatus 10, an arrow RH indicates the right side of the grain drying apparatus 10, and an arrow UP indicates the upper side of the grain drying apparatus 10.

As shown in FIGS. 1 to 3, the grain drying apparatus 10 according to the present embodiment includes a machine body 12 as a main body of the machine, and the machine body 12 is shaped like a rectangular parallelepiped box that is tall in the vertical direction and long in the front-rear direction.

The upper part of the machine body 12 is made into a grain tank 14 as a storage chamber, and the grain K (for example, paddy, wheat, buckwheat or soybean) is stored (stored) in the grain tank 14 .

A pair of inner exhaust passage partition walls 16 are provided at the center in the left-right direction in the lower portion of the fuselage 12, and the inner exhaust passage partition walls 16 have air permeability. The inner exhaust passage partition 16 spans between the front plate and the rear plate of the fuselage 12, and the portions other than the upper and lower portions of the inner exhaust passage partition 16 are arranged vertically in the left-right direction. . The upper ends of the pair of inner exhaust passage partition walls 16 are integrated, and the upper and lower portions of the inner exhaust passage partition walls 16 incline downward toward the outside in the left-right direction of the fuselage 12 . An inner exhaust passage 18 is formed between the pair of inner exhaust passage partitions 16, and the inner exhaust passage 18 is closed on the front side and opened on the rear side.

In the lower portion of the fuselage 12, an inner air passage partition wall 20 and an outer air passage partition wall 22 are provided on both left and right outer sides of the pair of inner exhaust air passage partition walls 16. The air guide passage partition 22 has air permeability. The inner air passage partition 20 and the outer air passage partition 22 are bridged between the front plate and the rear plate of the fuselage 12, and the upper and lower portions of the inner air passage partition 20 and the outer air passage partition 22 are provided. Other portions are arranged vertically in the horizontal direction. The upper end of the inner air passage partition wall 20 and the upper end of the outer air passage partition wall 22 are integrated, and the lower end of the inner air passage partition wall 20 and the lower end of the outer air passage partition wall 22 are connected. . The upper portion of the inner air passage partition wall 20 and the lower portion of the outer air passage partition wall 22 are inclined downward toward the center in the left-right direction of the fuselage 12, and the lower portion of the inner air passage partition wall 20 and the outer air passage partition wall 22 are inclined downward. is slanted downward toward the outside in the left-right direction of the fuselage 12 . An inner downstream passage 24 is formed between the inner exhaust air passage partition 16 and the inner air guide passage partition 20, and the front and rear sides of the inner downstream passage 24 are closed. An air passage 26 is formed between the inner air passage partition 20 and the outer air passage partition 22, and the air passage 26 is closed on the rear side and opened on the front side.

In the lower portion of the fuselage 12, an outer exhaust air passage partition wall 28 is provided laterally outside the outer air guide air passage partition walls 22 of the fuselage 12, and the outer exhaust air passage partition wall 28 has air permeability. there is The outer exhaust passage partition 28 is bridged between the front plate and the rear plate of the fuselage 12, and the portions other than the upper and lower portions of the outer exhaust passage partition 28 are arranged vertically in the left-right direction. . The upper end of the outer exhaust passage partition 28 is integrated with the side plate of the fuselage 12 , and the upper and lower portions of the outer exhaust passage partition 28 are inclined downward toward the center of the fuselage 12 in the left-right direction. An outer flow path 30 is formed between the outer exhaust air path partition wall 28 and the outer air guide path partition wall 22, and the front and rear sides of the outer flow path 30 are closed. An outer air exhaust passage 32 is formed between the outer air exhaust passage partition 28 and the side plate of the fuselage 12, and the outer air exhaust passage 32 is closed on the front side and opened on the rear side. .

The upper side of the inner downstream channel 24 and the upper side of the outer downstream channel 30 are communicated with the inside of the grain tank 14 , and the grain K in the grain tank 14 flows down to the inner downstream channel 24 and the outer downstream channel 30 .

A pair of cylindrical container-shaped shutter drums 34 (see FIGS. 4 and 5) are provided at the lower end of the body 12 as a supply means (feeding body). and the rear plate, and arranged between the lower end of the inner downstream channel 24 and the lower end of the outer downstream channel 30 . The interior of the shutter drum 34 is equally divided in the center in the front-rear direction, and elongated rectangular slits 34A as openings are formed through the peripheral wall of the shutter drum 34 at the front and rear portions. The pair of slits 34A extend in the axial direction of the shutter drum 34 and are arranged on opposite sides of the shutter drum 34 in the circumferential direction. A portion and a rear portion are open to the outside of the shutter drum 34 .

When the shutter drum 34 is rotated and the peripheral wall of the shutter drum 34 (the portion other than the slit 34A) faces the lower end of the inner downstream channel 24 and the lower end of the outer downstream channel 30, the peripheral wall of the shutter drum 34 moves toward the inner side. The lower end of the downstream channel 24 and the lower end of the outer downstream channel 30 are substantially closed. Further, when the slit 34A is opposed to the lower end of the inner downstream channel 24 and the lower end of the outer downstream channel 30, the light from the lower end of the inner downstream channel 24 and the lower end of the outer downstream channel 30 respectively enters the shutter drum 34 via the slit 34A. Grain K flows into . When the slit 34A is directed downward, the grain K is discharged (fed out) downward from the shutter drum 34 through the slit 34A. As a result, the shutter drum 34 is rotated, so that the grain K flows into and is discharged from the shutter drum 34 through the slit 34</b>A, and the grain K flows down (is supplied) to the lower side of the shutter drum 34 .

At the lower end of the fuselage 12, below the pair of shutter drums 34, there are provided a pair of feeder plates 36 (see FIGS. 4 to 6) as supply members. It spans between the front panel and the rear panel of the body 12 . The top end of the sinking sink plate 36 is integrated with the side plate of the fuselage 12, and is inclined downward toward the center in the left-right direction.

A loading hopper 38 is provided at the lower part of the side plate of the machine body 12 so as to be openable and closable, and by opening the loading hopper 38, the grain K can be stocked (supplied) into the machine body 12. - 特許庁. Also, the grain K discharged from the shutter drum 34 or the grain K loaded from the loading hopper 38 flows down between the lower ends of the pair of loading sink plates 36 .

At the lower end of the fuselage 12, a substantially elongated rectangular plate-like restricting plate 40 (FIGS. 4 to 6) is provided as a restricting portion above the pair of sinking sink plates 36 and inside the pair of shutter drums 34 in the left-right direction. ) are provided, and the regulation plate 40 is bridged between the front plate and the rear plate of the airframe 12 . A portion of the regulation plate 40 other than the upper end and the lower end is arranged vertically in the left-right direction. A lower end portion of 40 is inclined downward toward the center of the body 12 in the left-right direction. The upper end of the regulating plate 40 is arranged above the lower end of the shutter drum 34, and the lower end of the regulating plate 40 is arranged in the vicinity of the stock flow plate 36. The flow rate of the grain K between the lower ends of the plate 36 is regulated. The lower end of the rear portion of the regulating plate 40 is inclined upward toward the rear, and the gap in the vertical direction between the lower end of the rear portion of the regulating plate 40 and the sinking flow plate 36 is increased toward the rear.

A pair of substantially rectangular reinforcing plates 42 (see FIG. 4) are bridged between the pair of restricting plates 40 , and the reinforcing plates 42 reinforce the restricting plates 40 . Parts other than the upper end and the lower end of the reinforcing plate 42 are arranged vertically in the left-right direction. A lower end portion of 42 is inclined downward toward the center of the fuselage 12 in the front-rear direction.

A lower screw conveyor 44 (see FIGS. 5 and 6) is provided between the lower ends of the pair of stocking flow plates 36, and the rear end of the lower screw conveyor 44 connects It is fixed and its front end protrudes forward from the front surface of the fuselage 12 . The lower screw conveyor 44 has a long gutter-like lower conveying gutter 44A as a conveying frame, and the upper and front surfaces of the lower conveying gutter 44A outside the machine body 12 are closed. The lower conveying gutter 44A in the machine body 12 is open upward, and the grain K that has reached between the lower ends of the pair of stock sink plates 36 flows down (is supplied) into the lower conveying gutter 44A. A lower screw 44B as a conveying member is provided in the lower conveying gutter 44A, and a spiral plate 44D is coaxially fixed around a cylindrical center shaft 44C in the lower screw 44B. Therefore, the lower screw 44B is rotated, so that the grain K in the lower conveying gutter 44A is conveyed forward by the lower screw 44B.

An elevator 46 as a lifting means is erected on the right side in front of the body 12 , and the upper end of the elevator 46 protrudes upward from the upper surface plate of the body 12 . An endless belt 46A is arranged in the elevator 46, and buckets 46B are attached to the endless belt 46A at regular intervals. The lower end of the elevator 46 communicates with the front end of the lower conveying gutter 44A, and the grain K discharged from the lower screw conveyor 44 (the front end of the lower conveying gutter 44A) and deposited on the lower end of the elevator 46. is lifted and conveyed to the upper end portion in the elevator 46 by the bucket 46B due to the rotation of the endless belt 46A.

An upper screw conveyor 48 is provided at the upper end of the machine body 12 as an upper conveying means. protruding from the front plate of the The upper screw conveyor 48 has a long gutter-like upper conveying gutter 48A, and the lower surface of the rear end portion of the upper conveying gutter 48A is open. The front end of the upper conveying gutter 48A communicates with the upper end of the elevator 46, and the grain K conveyed to the upper end of the elevator 46 flows down to the front end of the upper conveying gutter 48A. An upper screw 48B is provided in the upper conveying gutter 48A, and the grain K that has flowed down to the front end portion of the upper conveying gutter 48A is conveyed rearward by the upper screw 48B.

Below the rear end portion of the upper screw conveyor 48, a disk-shaped equalizer 50 as a distribution means is rotatably provided, and the rear end portion of the upper screw conveyor 48 (the rear end portion in the upper conveying gutter 48A) The grains K conveyed to are flowed down on the upper surface of the rotating equalizer 50, and are evenly dispersed and distributed in the grain tank 14 by centrifugal force.

A cuboid box-shaped furnace case 52 is provided on the left side of the front lower portion of the fuselage 12. The interior of the furnace case 52 communicates with the outside of the fuselage 12 on the front side, and the air guide passage 26 on the rear side. is connected to A burner (not shown) is provided in the furnace case 52 as heat generation means.

A blower tube 54 is provided on the lower rear surface of the fuselage 12 , and the inside of the blower tube 54 communicates with the inner air exhaust passage 18 and the outer air exhaust passage 32 on the front side. A blower 56 is attached inside the blower tube 54 .

As a result, the air blower 56 is driven, and the normal temperature outside air (normal temperature air) outside the fuselage 12 is sucked into the air guide passage 26 through the furnace case 52, and further, the inner air guide passage partition 20 and the inner Through the downstream passage 24, the inner exhaust passage partition 16 and the inner exhaust passage 18, and also via the outer guide passage partition 22, the outer downstream passage 30, the outer exhaust passage partition 28 and the outer exhaust passage 32. The air is sucked and blown to 54 and exhausted. Furthermore, by activating (igniting) the burner, the outside air introduced into the furnace case 52 is turned into hot air (dry air) heated to a high temperature by the burner, and flows into the inner downstream passage 24 and the outer downstream passage 30. be ventilated.

Next, the operation of this embodiment will be described.

In the grain drying apparatus 10 configured as described above, when the grain K is loaded into the body 12, the lower screw conveyor 44, the elevator 46, the upper screw conveyor 48 and the equalizer 50 are driven. Then, the stocking hopper 38 is opened, and the harvested grain K is stocked in the body 12.例文帳に追加For this reason, the grain K is flowed down to the lower screw conveyor 44 by the loading sink plate 36, passes through the lower screw conveyor 44, the elevator 46, the upper screw conveyor 48 and the equalizer 50, and enters the grain tank 14 into the inner flow downstream passage 24. and flowed down (stored) in the outer downstream channel 30 .

When the grain drying apparatus 10 is operated for drying, the shutter drum 34, lower screw conveyor 44, elevator 46, upper screw conveyor 48, equalizer 50 and blower 56 are driven, and the burner is operated.

Therefore, the grain K in the grain tank 14 passes through the inner downstream passage 24, the outer downstream passage 30, the shutter drum 34, the jam plate 36, the lower screw conveyor 44, the elevator 46, the upper screw conveyor 48, and the equalizer 50. The grain K is circulated in the grain drying apparatus 10 by being returned to the grain tank 14 . Furthermore, by driving the air blower 56 and activating the burner, hot air is generated, and this hot air is sucked and blown into the inner downstream passage 24 and the outer downstream passage 30, so that the grain K in the inner downstream passage 24 and the outer downstream passage 30 is is dried.

By the way, the grain K that has flowed down from the shutter drum 34 is flowed down the jam plate 36 and supplied to the lower screw conveyor 44 . Then, in the lower screw conveyor 44, the lower screw 44B is rotated, and the grain K in the lower conveying gutter 44A is conveyed forward by the lower screw 44B.

Here, a regulating plate 40 is provided above the lower screw conveyor 44 and regulates the amount of grain K supplied from the stock flow plate 36 to the lower screw conveyor 44 . Therefore, it is possible to prevent the lower screw 44B from being buried in the grain K, and the grain K supplied to the lower screw conveyor 44 prevents the conveyance of the grain K by the lower screw conveyor 44 (rotation of the lower screw 44B). can be suppressed. Furthermore, the lateral position of the regulating plate 40 is different from the lateral position of the lower screw conveyor 44, and the regulating plate 40 opens the lower screw conveyor 44 upward. Therefore, it is possible to prevent the restricting plate 40 from restricting the movement of the grain K to the upper side (retreat from the lower screw 44B) due to the rotation of the lower screw 44B. You can suppress being hindered.

As a result, even if the driving of the lower screw conveyor 44 is stopped due to, for example, an abnormality during the operation of the grain drying apparatus 10, the driving of the shutter drum 34 is not stopped, and the grain K on the upper side of the loading sink plate 36 is kept. When the amount of grain K becomes excessively large (see the two-dot chain line in FIG. 5), the lower screw conveyor 44 is driven again, so that the lower screw 44B can start rotating, and the lower screw conveyor 44 feeds the grain K. Transport can be started. Therefore, it is possible to reduce the necessity of taking out the grain K from the upper side of the stock sink plate 36 to the outside of the machine body 12 .

Further, regulation plates 40 are arranged on both lateral sides of the lower screw conveyor 44 . For this reason, even when the grain K is supplied to the lower screw conveyor 44 from the left and right loading sink plates 36 (both sides in the left-right direction), the grain K cannot be conveyed by the lower screw conveyor 44 (rotation of the lower screw 44B). Blocking by the grain K supplied to the lower screw conveyor 44 can be suppressed.

Further, by adjusting the distance between the regulating plate 40 and the stock flow plate 36, the size of the grain K flow-down passage (the grain K supply passage to the lower screw conveyor 44) on the upper side of the stock flow plate 36 is adjusted. (Cross-sectional area) is adjusted by the regulation plate 40 , and the regulation plate 40 regulates the amount of grain K supplied to the lower screw conveyor 44 . Therefore, the regulation plate 40 can regulate the amount of grain K supplied to the lower screw conveyor 44 with a simple structure.

Further, the regulating plate 40 extends above the lower end of the shutter drum 34 (grain K flow-down position (grain K supply position)). For this reason, even if the grain K flowing down from the shutter drum 34 is deposited between the jamming plate 36 and the regulating plate 40 (see the two-dot chain line in FIG. It is possible to prevent the grains K from passing over the upper side and flowing down to the lower screw conveyor 44, and to prevent an increase in the amount of grain K supplied to the lower screw conveyor 44. - 特許庁

In addition, the lower end of the rear portion of the regulating plate 40 is slanted rearward and upward, and the gap in the vertical direction between the lower end of the rear portion of the regulating plate 40 and the staking flow plate 36 is widened rearward. The amount of grain K supplied to the lower screw conveyor 44 regulated by the regulating plate 40 is increased at the rear portion of the lower screw conveyor 44 (the portion opposite to the grain K conveying direction). Therefore, the amount of grain K conveyed at the rear portion of the lower screw conveyor 44 can be increased, and a decrease in the amount of grain K conveyed (conveyance speed) at the rear portion of the lower screw conveyor 44 can be suppressed.

In addition, in this embodiment, the restricting plate 40 opens the entire upper portion of the lower screw conveyor 44 (the lower conveying gutter 44A and the lower screw 44B). However, the regulation plate 40 may open a part of the upper part of the lower screw conveyor 44 (the lower conveying gutter 44A and the lower screw 44B). good too.

Further, in this embodiment, the grain K is loaded into the machine body 12 from the side surface of the machine body 12 (loading hopper 38). However, the grain K may be put into the machine body 12 from a portion other than the side surface of the machine body 12 in the grain drying apparatus 10 . For example, the grain K may be loaded into the machine body 12 from the upper surface of the machine body 12 , or the grain K may be loaded into the machine body 12 from the lower part of the elevator 46 via the elevator 46 .

Furthermore, in this embodiment, the grain K is dried by hot air generated by a burner (heat generating means). However, the grain K may be dried by the far infrared rays generated by the heat generating means. Further, the heat generation means may be of any type such as a concentrated combustion type, a distributed combustion type, or the like.

10 grain drying device 12 body (apparatus main body)
34 shutter drum (supply means)
40 regulation plate (regulation part)
44 lower screw conveyor (conveying means)

Claims (5)

a device body in which grain is dried;
a conveying means provided on the lower side of the device main body for conveying grain;
a regulating portion provided above the conveying means for regulating the amount of grains supplied to the conveying means and for opening the upper portion of the conveying means;
grain drying equipment. 2. The grain drying apparatus according to claim 1, wherein said restricting portions are arranged on both sides of said conveying means. 3. The grain drying apparatus according to claim 1, wherein the size of the grain supply path to said conveying means is adjusted by said regulation section, and said regulation section regulates the amount of grain supplied to said conveying means. 4. The grain drying apparatus according to any one of claims 1 to 3, further comprising feeding means for feeding grain to said conveying means and extending said restricting portion above a grain feeding position. The grain drying apparatus according to any one of claims 1 to 4, wherein the amount of grain supplied to said conveying means regulated by said regulating portion is increased at a portion of said conveying means opposite to the grain conveying direction.