WO2008038528A1

WO2008038528A1 - Grain drying device

Info

Publication number: WO2008038528A1
Application number: PCT/JP2007/067912
Authority: WO
Inventors: Tsuneo Kaneko; Satoru Ikeda; Takao Seki; Kazumi Yoshida
Original assignee: Kaneko Agricultural Machinery Co., Ltd.
Priority date: 2006-09-27
Filing date: 2007-09-14
Publication date: 2008-04-03
Also published as: JP2008082599A; JP4931053B2; CN101454631A; CN101454631B

Abstract

A drying section capable of being increased in size and reduced in costs without redesigning the drying section with revised thicknesses of members and structure. This can be achieved even if the drying section has an increased installation area due to an increase in size of a drying machine. The drying section is constructed from two adjacent drying bodies arranged side by side with one of them rotated by 180 degrees relative to the other and the two drying bodies in contact with each other. The lower end of a hull collection section has a left, right, and center sections, where the left and right sections are hot air chambers and the center section is an air discharge chamber. Drying air generated by combustion devices provided in respective drying chambers is supplied to the two drying bodies from the left and right left hot air chambers through a drying air supply drum, flows down through an air discharge drum located between the drying bodies, and is discharged to the outside from a fan in the air discharge chamber.

Description

Specification

Grain drying equipment

Technical field

TECHNICAL FIELD [0001] The present invention relates to a grain drying apparatus that dries a grain by passing hot air through the circulated grain.

Background art

[0002] Conventionally, one side on both sides of the collecting part in the main body of the rectangular tube-shaped drying apparatus that is long in the front-rear direction is a hot air blowing chamber and the other is a dust exhausting chamber, and the left-right direction is the short side of the dryer In addition, a configuration in which a plurality of hot air chambers that communicate with the hot air blowing chamber and a plurality of exhaust air chambers that communicate with the dust exhaust air chamber are alternately laid to form a narrow drying passage between the two chambers is disclosed in JP-A-57. — It is described in No. 104078 (Patent Document 1).

[0003] Further, in the configuration of Patent Document 1, a plurality of mountain-shaped partition walls arranged in the front-rear direction, which is the long side of the drying device, are directly below the drying section in which the hot air chamber, the drying passage, and the exhaust air chamber are disposed. Grains are quantitatively fed out by a feed roll that is pivoted in the front-rear direction at the bottom of the multiple rows of cross-flow feed chambers, and the circumference of the feed roll is surrounded by a hot air blowing chamber, a dust blowing chamber, and a feeding chamber. A grain dryer having such a structure is known as disclosed in JP-A-61-55037.

[0004] Patent Document 1: Japanese Patent Laid-Open No. 57-104078

Patent Document 2: Japanese Patent Laid-Open No. 61-055037

Disclosure of the invention

Problems to be solved by the invention

[0005] In the grain dryer in which the above-mentioned document is implemented, the drying passage has a narrow surface area, although the drying passage can be made wide, so that the efficiency and power can be evenly distributed. Can flow down, so that uniform grain drying can be achieved. In addition, since the drying passage is narrow, it is possible to ventilate the grain layer reasonably with little ventilation resistance, so that it is possible to effectively ventilate even if the power of the blower is reduced.

However, in the above configuration, the side wall of the dust exhaust chamber is in contact with the outside air, Dust accumulates in a part of the dust exhaust chamber that is difficult to pass through, and the dry matter contains a lot of moisture! / Since the exhaust air contains a lot of moisture, condensation occurs due to the temperature difference from the outside air. Accelerates the decay of dust and confirms the occurrence of side wall corrosion!

[0007] In addition to the recent agricultural reform, large-scale agriculture has been encouraged, and the demand for large grain dryers has been increasing as grouping and commercialization are promoted. In order to meet these demands, it is necessary to start development of a large grain dryer. For grain dryers equipped with the dryer section of the above patent document, There may be some troubles.

[0008] First, since it becomes difficult to maintain the uniform width of the drying passage by extending the drying section in the left-right direction, the drying passage is thin depending on the location, uniform ventilation and uniform grain distribution. This may impair proper flow and may prevent the grain from drying uniformly.

[0009] Secondly, increasing the size of the dryer itself increases the amount of grain stored in the storage tank of the dryer and increases the weight applied to the drying section. In particular, when the drying section itself is extended in the front / rear or left / right and both directions, in order to withstand the weight applied to the drying section and prevent deformation of the drying section, the thickness of the member used in the drying section should be increased. However, it is necessary to change the structure to withstand the weight, and simply extending the length of the drying section that has been used in the past will not fulfill its function. In addition, the new design of the structure of the dry section that can increase the thickness of the material or withstand the load is a problem in terms of cost, resulting in an increase in the product price.

[0010] Thirdly, by increasing the size of the drying section, the flow of the drying air passing through the drying section becomes unsatisfactory, increasing the gap between the place where it is easy to ventilate and the place where it is likely to stay. In addition to increasing dust accumulation, it may be difficult to achieve the purpose of the dryer that uniformly dries the grains. This requires increasing the cost of the dryer itself.

[0011] Therefore, in the present invention, even if the drying section itself is made large so as to eliminate the above problems, the conventional method can be used without newly designing a method for increasing the thickness of the member or a structure for increasing the strength. Utilizing the structure of the drying section to provide a drying section that can withstand the load and maintain a uniform width of the drying path to allow the drying path to flow and the grain to flow evenly, and to dry uniformly Wind The purpose is to provide a grain drying device that reduces the accumulation of dust in the dust exhaust chamber by supplying air to the drying passage, the exhaust chamber and the dust exhaust chamber, preventing the accumulation of ventilation in the dust exhaust chamber To

Yes

Means for solving the problem

In order to achieve the above object, a grain drying apparatus according to the present invention proposes a grain drying apparatus according to claims 1 to 6.

[0013] That is, the grain drying apparatus according to claim 1 is arranged with a storage tank, a drying section, and a collecting section in that order from the top, and the collecting section and the storage tank are joined with a lifting apparatus for lifting grains. The grain drying device circulates in the storage tank, the drying unit, and the collecting unit, and the drying unit is a hot air layer, a drying layer, an exhaust layer, or an exhaust layer, a drying layer, a hot air layer that traverses the left and right direction. Repeatedly arranged in the front-rear direction in this order, arrange multiple dry bodies with inverted conical shapes as the left and right ends of each layer are downward, and adjacent dry bodies are 180 ° inverted and placed in contact to place the drying section It is characterized by forming.

[0014] The grain drying apparatus according to claim 2 has a storage tank, a drying section, and a collecting section arranged in this order from the upper stage, and the collecting section and the storage tank are joined with a lifting device that lifts the grains, and stored. The upper surface of the tank is equipped with a tensioning device for evenly storing the grains discharged from the lifting device, the hot air chamber and the exhausting chamber in the concentration part, and the concentration flow downway for allowing the grains to flow down in one direction A grain drying device that is provided with a concentration device connected to the input portion of the lifting device at the lower end and circulates through the storage tank, drying unit, and concentration unit, and the drying unit is a hot air layer that crosses the left and right direction, Repeatedly arrange the dry layer, the exhaust layer, or the exhaust layer, the dry layer, and the hot air layer in the front-rear direction, and arrange two dry bodies with an inverted conical shape as the left and right ends of each layer move downward. Then, one of the adjacent dry bodies is inverted 180 ° and placed in contact to form a drying section. Write to is characterized in that it comprises a current 榖流 under path of each current 榖部.

[0015] The grain drying apparatus according to claim 3 is the grain drying apparatus according to claim 1 or claim 2, wherein the collecting portion has a hot air chamber provided with a combustion device in the left and right end directions, and the central portion has a blower. It is characterized by setting it as the ventilation chamber provided.

[0016] The grain drying apparatus according to claim 3 is the grain drying apparatus according to claim 1, 2 or 3, wherein the concentration flow downstream of the concentration section is directed toward the concentration apparatus provided at the lower end of the center thereof. grain In addition to providing a dust passage on one of the slopes, the slope with the dust passage is opposite to the collecting flow downstream connected to the drying bodies adjacent to the drying section. One of the concentrated flow downstreams is turned 180 ° so that it faces the exhaust chamber and is connected to the dry body.

[0017] The grain drying apparatus according to claim 5 is the grain drying apparatus according to claim 1, 2, 3 or claim 4, wherein the grain drying apparatus is dried at any central portion in the front-rear direction of the rectangular tube-shaped drying apparatus. The lifting device is arranged at a distance from the device body, and the outlets of the collecting device at the lower end of the collecting flow downstream connected to the lower ends of the two dry bodies are attached to the left and right sides of the lifting device. It is characterized by being individually connected to the mouth.

[0018] The grain drying apparatus according to claim 6 is the grain drying apparatus according to claim 1, 2, 3, 4 or 5, wherein the ceiling of the storage tank is lifted from the collecting portion by a lifting device. If the tensioning device for evenly feeding the grain into the storage tank has an angle at the rear of the lifting device's discharge loca, and if the discharging direction at the top of the lifting device is reversed, the angle at the back of the lifting device The mounting position of the grain drying apparatus is characterized in that the center in the front-rear direction of the grain drying apparatus is symmetrical and can be mounted at a symmetrical position.

The invention's effect

[0019] Even when the installation area of the drying unit is increased due to an increase in the size of the drying device, a new drying unit is not redesigned in consideration of the thickness and structure of the member by using a plurality of conventional drying units. Therefore, it is possible to provide a drying section that can cope with an increase in size and can reduce costs.

[0020] In addition, since it is possible to secure a uniform ventilation width for the dry layer, the hot air layer, and the exhaust layer that maintain a uniform flow width of the grain, uniform flow and uniform ventilation in each dry layer. It is possible to implement S In particular, a hot air chamber is provided in the horizontal direction below the concentration part of the drying device, and an exhaust chamber is provided in the central part. It is possible to reduce the accumulation of dust in the exhaust chamber by preventing air from staying in the exhaust chamber and generating turbulence.

[0021] In addition, two adjacent collecting flow paths are installed in the collecting section, and one of them is turned 180 ° so that it faces the dust passage and is placed in the exhaust chamber. It is possible to remove dust smoothly and uniformly without causing retention in the dust passage. Brief Description of Drawings

FIG. 1 is a cutaway perspective view showing a grain drying apparatus according to a first embodiment of the present invention.

FIG. 2 is a schematic front sectional view of the grain drying apparatus according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a planar cross section of the drying section of the grain drying apparatus shown in FIGS. 1 and 2.

4 is an enlarged view of a collecting portion of the front cross-sectional view shown in FIG.

FIG. 5 is a plan view of the grain drying apparatus according to the first embodiment of the present invention and a front view showing the upper part of the lifting apparatus.

FIG. 6 is a plan view of the grain drying device and a front view showing the upper portion of the lifting device, showing a state where the upper portion of the dredging device in FIG. 5 is inverted 180 °.

FIG. 7 is a diagram showing a cross-sectional plan view of a drying section of a grain drying apparatus according to a second embodiment of the present invention.

Explanation of symbols

[0023] 1 Grain dryer

2 Reservoir

3 Drying section

4 Concentration club

5 Lifting equipment

6 Dry body

7 Hot air layer

8 Dry layer

9 Exhaust layer

10 Hot air chamber

11 Ventilation chamber

12 Shujiryu Lower Road

13 Placing device

14 Concentrator

15 Combustion device 17 Dust passage

18 Paste

19 Feeding roll

20 Input port A

21 Input B

22 Motor

23 bucket

24 slot C

25 Input D

26 Yamagata partition

27 Hot air passage

28 Upper dry body

29 Lower dry body

30 Dry air supply cylinder

31 Exhaust drum

32 motor

33 Chuo Line

34 Outshoot

35 Regulatory plate

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a perspective view showing the grain drying apparatus according to the first embodiment of the present invention in a cutaway view, FIG. 2 is a schematic front sectional view of the grain drying apparatus according to the first embodiment of the present invention, and FIG. FIG. 4 is a plan view of the drying section of the grain drying apparatus shown in FIGS. 1 and 2, and FIG. 4 is an enlarged view of the collecting section of the front sectional view shown in FIG. Fig. 5 is a plan view of the grain drying apparatus according to the first embodiment of the present invention and a front view showing the upper part of the lifting device, and Fig. 6 is a state where the upper part of the dredging device in Fig. 5 is inverted 180 °. FIG. 7 is a plan view of the grain drying device and a front view showing the upper portion of the lifting device. FIG. 7 is a plan view of the drying section of the grain drying device according to the second embodiment of the present invention. It is the figure which showed the surface.

Example 1

[0025] As shown in Figs. 1 and 2, 1 is a grain drying apparatus. Grain drying device 1 has a storage tank 2, a drying unit 3, and a collecting unit 4 stacked from the top, and the upper part of the collecting unit 4 and the storage unit 2 is connected by a lifting device 5. The upper surface of the storage tank 2 is provided with a tensioning device 13 for evenly sticking the grain discharged from the lifting device 5 into the storage tank 2, and this tensioning device 13 is a screw conveyor that moves the grain by rotating the spiral. It is.

[0026] The drying section 3 repeats the hot air layer 7, the drying layer 8, the exhaust layer 9 or the exhaust layer 9, the drying layer 8, and the hot air layer 7 that traverse the left and right direction of the grain drying device 1 in the front-rear direction. Two dried bodies 6 that have an inverted conical shape are arranged next to each other in parallel as the left and right ends of each layer become lower, and the inverted cone shape of the left and right side plate surfaces of the grain dryer and the dried body is arranged. The drying space 3 is formed with the generated space as a drying wind supply cylinder 30 and the space generated in an inverted conical shape between the drying bodies 6 as an exhaust wind drum 31. Each layer that crosses the drying body 6 in the left-right direction is the hot air layer 7 if the layer in contact with the front plate of the drying device is the hot air layer 7, and the last layer in contact with the rear plate is also the hot air layer 7, and the layer in contact with the front plate is excluded. In the case of the wind layer 9, the last layer in contact with the rear side plate is configured to be the exhaust layer 9.

Furthermore, the dry body 6 shown in FIGS. 1 and 2 is configured by combining an upper dry body 28 having left and right ends in an inverted conical shape, and a lower dry body 29 having a prism with the same top and bottom areas. In addition, the space for hot air supply month 30 and exhaust wind drum 31 is extended in the vertical direction to increase the distribution space for grains.

[0028] As shown in Fig. 3, the dry body 6 has a layer in contact with the front surface of the drying unit 3 as a wind exhaust layer 9, followed by a dry layer 8 and behind it a hot air layer 7, and the last layer is exhausted. It is configured to be layer 9, and is configured to have four hot air layers 7, eight dry layers 8, and five exhaust layers 9. In this case, the arrangement of the layers may be arranged from the hot air layer 7. In this case, five hot air layers 7, eight dry layers 8, and four exhaust layers 9 may be provided. Two dry bodies with the respective layers arranged in this way are arranged in parallel, and one of the dry bodies 6 is inverted 180 ° so that the hot air layer 7, the dry layer 8, and the exhaust air layer 9 face each other. Are arranged.

The collecting section 4 is provided with a collecting flow downstream 12 at the lower end of each dry body 6. Figures 1 and 2 4 and the dry body 6 shown in FIG. 4 is arranged in parallel with one side inverted and sandwiching the wind exhaust drum 31 so that the collecting flow downstream 12 also has a space in the exhaust chamber 11 in parallel. Arranged in part 4. The collecting flow downstream 12 has a plurality of feeding rolls 19 disposed therein, and is provided with a mountain-shaped partition 26 so as to guide the flowing-down articles to the feeding roll 19 without delay, and the grain discharged from the feeding roll 19 Flows down the slope of the collecting flow downstream 12 and flows into the screw conveyor of the collecting device 14. The feeding roll 19 is rotated by a motor (not shown), and a motor is provided for each collecting flow downstream 12 to drive each of them, or all the feeding rolls 19 are connected by a chain, A method of driving with a motor may be used.

[0030] One of the slopes on both sides of the collecting flow downstream 12 leading to the collecting device 14 is provided with a space with a part of the slope being doubled, and the space is formed as a dust exhaust passage 17. Dust generated in the collecting flow downstream 12 has a lighter specific gravity than grains such as dust, and is discharged from the collecting flow downstream 12, and one of the parallel collecting downstream 12 is also connected to the dry body 6. Similarly, it is turned 180 ° and the dust passage 17 is arranged oppositely.

[0031] Below the collecting section 4, the left and right direction is a hot air chamber 10, and the center is an exhaust air chamber 11, and in each of the left and right hot air chambers 10, a combustion device 15 by combustion of liquid fuel is disposed. The position is provided at a position symmetrical with respect to the center of the drying apparatus in the front-rear direction, and the air exhaust chamber 11 is provided with two blowers 16. The upper part of the hot air chamber 10 communicates with the dry air supply cylinder 30, and the exhaust air chamber 11 communicates with the exhaust air cylinder 31 and the dust exhaust passage 17.

[0032] The lifting device 5 is a packet elevator in which a belt having a packet 23 rotates in one direction to convey the grain upward, and is located in the center of the grain drying device 1 with respect to the front-rear direction and at the front of the drying device. Be prepared for some distance. At the lower part of the packet elevator of the lifting device 5, there is an attachment port 18 in both the left and right directions for feeding the grains collected by the screw conveyor of the collecting device 14 of the collecting unit 4 into the bucket elevator. The grain from each collecting device 14 can be input. It should be noted that the filling port 18 is preferably used as a hopper when the grain is put into the grain drying apparatus 1 from the outside.

[0033] The lifting device 5 is rotated by the power from the motor 22 on the upper side to convey the grain upward and discharge the grain. The outlet is joined to the receiving port of the tensioning device 13 and is provided with a discharge chute 34 at the lower end of the receiving device so that the grain can be discharged from here to the outside of the drying device. It is possible to choose between in-machine circulation and out-of-machine discharge. The tensioning device 13 is a screw conveyor that rotates the spiral by a motor 32 and moves the grain. It is provided with an angle.

[0034] At the bottom of the tensioning device 13 and the ceiling surface of the storage tank 2, an input port A20 and an input port B21 for supplying the material conveyed by spiral rotation into the storage tank 2 are arranged. This inlet can be adjusted by adjusting its opening degree (see Fig. 5).

[0035] Further, as shown in FIG. 6, since only the upper part of the lifting device 5 including the packet elevator motor 22 can be inverted by 180 °, the plastering device 13 has a center line. 33 is provided at a symmetric position with the base line as a base line, and an inlet C24 and an inlet D25 for feeding into the storage tank 2 from the tensioning device 13 are provided! In addition, since the insertion port where the tensioning device 13 is not installed is generated depending on the direction of the upper part of the lifting device 5, the lid is attached and closed! .

[0036] In the grain drying apparatus configured as described above, the harvested grain is put into the sticking port 18 by the transporter, and is transported upward by the packet elevator of the lifting device 5, and the sticking device is discharged from the discharge port. By moving to 13 and rotating the spiral, the tensioning device 13 is conveyed from the front to the diagonally rearward direction, and is fed into the storage tank 2 from the charging port A20 and the charging port B21.

[0037] If the normal lifting device discharge direction is as shown in Fig. 5, the grain is put into the storage tank 2 from the inlet A20 and the inlet B2 1 depending on the direction of the post-drying process of Fig. 6 In this case, the upper part of the lifting device 5 (packet elevator) is turned 180 ° and the belt attached with the packet is turned. The insertion device 13 is also directed symmetrically with the center line 33 as the base line, connected to the discharge port of the lifting device 5, opens the input port C24 and the input port D25, and covers the input port A20 and the input port B21. Close it. [0038] In the tensioning operation of the grain drying device, the force of both the tensioning ports 18 provided in the lifting device 5 is the grain force input from one or both, and the tensioning device 5 reaches the tensioning device 13 to reach the two charging ports. (A, B or C, D) is input and grain is deposited in storage tank 2. Since this stretching operation does not operate the feeding roll 19 provided in the collecting section 4, two piles are built in the storage tank 2 and the grains are deposited almost uniformly in the storage tank.

[0039] After the end of the tensioning operation, the feeding roll 19 of the collecting unit 4 starts rotating by the drying operation, and the grain flow and circulation start. Since the two feeding rolls 19 attached to the two dry bodies 6 allow the grain to flow uniformly, the flow speed of the food flowing down the respective dry bodies 6 is also the same. Further, as shown in FIGS. 3 and 4, two fans 16 are arranged in the exhaust chamber 11 of the collecting section 4, and each of the two hot air chambers 10 provided in the left and right direction of the drying device is burned. The hot air generated in the device 15 is raised by the suction action of the blower 16 and is supplied to the dry body 6 through the respective drying air supply passages 30.

[0040] Since the two dry bodies 6 are provided by being inverted by 180 °, the hot air layer 7, the dry layer 8, and the exhaust air layer 9 are arranged to face each other, and are adjacent to each other from the blower 16. Since the distance to the exhaust air layer 9 facing the two dry bodies 6 and the distance to the combustion device 15 and each hot air layer 7 are the same, the wind speed and air volume of each layer can be made the same. . For example, when one of the dry bodies 6 is arranged without being inverted, the air flow distance between each layer and the blower 16 and the combustion device 15 is different, so that the dry air ventilated through the dry layer 8 is the respective dry body. 6 is different. In particular, when the distance between each exhaust layer 9 and the blower 16 is different between the two dry bodies 6, turbulence occurs in the exhaust chamber 9 and a phenomenon occurs in which the air flow rate of each dry layer 8 is different. And uniform drying becomes difficult.

[0041] Grain that has passed through the drying section is guided in the direction of the feeding roll 19 by the plurality of angled partitions 26 of the collecting flow path 12 connected to the respective dry bodies 6 of the collecting section 4, and is rotated by the rotation of the feeding roll 19. It is discharged uniformly and quantitatively on the slope of the collecting flow downstream 12. In this case, as shown in FIG. 4, a dust exhaust passage 17 is provided on one inclined surface of the concentrated flow downstream 12 and the respective exhaust passages 17 of the two concentrated downstream channels 12 are opposed to each other. Therefore, when the dry air generated in the hot air chamber 10 passes through the hot air supply cylinder 30 through the hot air layer 7 and reaches the dry layer 8, a part of the dry air is generated in the dry layer 8. Is fed in the vertical direction and is fed from the angle divider 26 After passing through 19, the dust collecting passage 17 of the collecting flow downstream 12 reaches the exhaust chamber 11 and is discharged from the blower 16 to the outside. The dry wind passing through the dust discharge passage 17 slightly dries the grain flowing down the collecting flow downstream 12 and at the same time sucks the dust generated by the grain flowing down from the feeding roll 19 to the outside of the machine. It is supposed to be discharged.

[0042] Since the dust exhaust passage 17 is located at the same position facing the collecting flow downstream 12 with the space of the air exhaust chamber 11 in between, it can be sucked uniformly from the two dust exhaust passages 17. As a result, it is possible to minimize the accumulation of dust in the exhaust chamber 11 without generating turbulent flow in the exhaust chamber 11.

[0043] Grains that have flowed down the collecting flow downstream 12 are subjected to dust removal action in the dust discharge passage 17, and then collected in the direction of the lifting device 5 by the collecting device 4 arranged at the lower end thereof, and are lifted from the loading port 18. It is put into the dredging device 5 and circulates in the grain drying device 1, dried to the set moisture value, discharged from the discharge chute 34, and transferred to the work of the subsequent process.

Example 2

FIG. 7 is a schematic cross-sectional view of the drying unit 3 showing the second embodiment of the present invention, and shows a configuration in which the combustion device 15 and the blower 16 are respectively combined. The other configuration is the same as the configuration shown in the first embodiment.

[0045] In the drying section 3, two dry bodies 6 are arranged in parallel in the left-right direction, and one dry body 6 is inverted 180 °. The arrangement of each layer is also repeated in the order of the hot air layer 7, the drying layer 8, the exhaust layer 9 or the exhaust layer 9, the drying layer 8, and the hot air layer 7 that traverse in the left-right direction. As the left and right ends of each layer of the layer become lower, two dried bodies 6 having an inverted cone shape are arranged in the left and right direction to supply the drying space to the space generated by the outer peripheral surface of the grain dryer and the inverted cone shape of the dried body. The drying section 3 is formed by using the body 30 and the exhaust cylinder 31 as a space generated in an inverted conical shape between the drying bodies 6. Each layer that crosses the dry body in the left-right direction should be the hot air layer 7 if the front of the dry body 6 is the hot air layer 7 and the hot air layer 7 in front of the dry body 6, and the exhaust air layer 9 in front of the dry body 6. For example, the last layer is configured to be the exhaust layer 9!

[0046] Further, a hot air passage 27 is provided between the side plate on the front surface of the drying unit 3, and between each of the drying body 6 and the exhaust chamber 11, and a combustion device 15 provided substantially at the center of the drying device body. Do not circulate the dry air generated by the suction of outside air to the exhaust chamber 11! /, Thus, the drying air is distributed evenly to the left and right hot air chambers 10.

[0047] Due to the suction action of the blower 16 disposed in the approximate center of the drying device main body, the drying air generated in the combustion device 15 is heated from the inside of the hot air passage 27 between the front surface plate of the drying device and the regulation plate 35 to the left and right hot air. It reaches the chamber 10, passes through the drying layer 7 provided in the left and right dry bodies 6 as a control, passes through the drying layer 8, reaches the exhaust chamber 11 from the exhaust layer 9, and is discharged from the blower 16 to the outside. Since the exhaust air layer 9 connected to the exhaust air chamber 11 is provided symmetrically, the dry air passing through the dry body 6 is uniform, and no turbulent flow is generated in the exhaust air chamber 11, so suction is uniformly performed. The rate at which dust and the like accumulate in the exhaust chamber 11 decreases.

[0048] As described above, by using two drying bodies 6 for the drying unit 3 and suctioning with a blower from the center of the drying unit 3, more uniform drying can be performed, and disturbance in the exhaust chamber can be performed. Since the flow can be eliminated, the effect of reducing dust accumulation can be expected. In addition, even if the drying device itself needs to be increased in size, it is possible to increase the strength and cost by using a plurality of conventional drying units as drying bodies, without developing a drying unit with increased strength. In addition, an excellent drying section can be provided even with a uniform drying capacity.

Claims

The scope of the claims

[1] The storage tank, drying section, and collecting section are arranged in this order from the top, and the storage tank, drying section, and collecting section are joined to the collecting section and the storage tank with a lifting device that lifts grains. Circulating grain drying equipment, the drying section is repeatedly arranged in the front-rear direction in the order of the hot air layer, the drying layer, the exhaust air layer or the exhaust air layer, the drying layer, and the hot air layer that traverse in the left-right direction. A grain drying apparatus characterized in that a plurality of dry cones having an inverted conical shape are arranged as the lower left and right ends of the slab are downward, and adjacent dry bodies are inverted by 180 ° and placed in contact to form a drying section.

[2] From the top, the storage tank, drying section, and collection section are arranged in this order. The collection section and storage tank are joined with a lifting device that lifts the grain, and the lifting device power is discharged on the upper surface of the storage tank. The storage unit is equipped with a tensioning device for evenly storing the grain, the hot air chamber and the exhaust chamber in the concentrating part, the condensing flow downway for allowing the grain to flow in one direction, and the input part of the lifting device at the lower end A grain drying apparatus that circulates grains through a storage tank, drying section, and collecting section, and the drying section crosses the horizontal direction in the hot air layer, drying layer, exhaust layer, or exhaust Arrange the air layer, the dry layer, and the hot air layer repeatedly in the front-rear direction, and arrange two dry bodies with an inverted pyramid shape as the left and right ends of each layer are downward, and place one of the adjacent dry bodies. 180 ° Inverted and placed in contact to form a drying section, and below each drying body is the concentration flow of each collecting section Characterized by comprising a grain drying apparatus.

[3] The grain drying device according to claim 1 or 2, wherein the collecting portion is a hot air chamber provided with a combustion device in both left and right end directions, and the central portion is an exhaust air chamber provided with a blower.

Yes

[4] The collecting flow downstream of the collecting section is formed from two slopes that collect grains in the direction of the collecting device at the lower end of the center, and is provided with a dust passage on one slope and adjacent to the drying section The collecting flow downstream connected to the dry body was connected to the dry body by turning one collecting flow downstream 180 ° so that the slope with the dust discharge passage was opposed to the exhaust chamber. The grain drying apparatus according to claim 1, 2, or 3.

[5] A lifting device is placed at some distance from the main body of the drying device at the center in the front-rear direction of the rectangular tube-shaped drying device, and the concentrated flow is connected to the lower ends of the two drying bodies. The outlets of the concentration device at the lower end of the road are individually connected to the insertion ports provided on the left and right sides of the lifting device. The grain drying apparatus according to claim 1, 2, 3 or claim 4, wherein

On the ceiling of the storage tank, there is a tensioning device for evenly throwing the grains lifted from the collecting section by the lifting device into the storage tank. When the upper discharge direction is reversed, the mounting position at an oblique rear angle is configured to be attached to the target position with respect to the center in the front-rear direction of the grain drying device. Item 1, 2, 3, 4, or grain drying device according to claim 5.