JP4009738B2 - Grain dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention includes a flow chamber on both left and right sides provided between a flow plate on both the left and right sides below the grain storage chamber and a mountain-shaped central flow plate on the center, and a lower end of each flow plate and the central flow plate A grain drying chamber on both the left and right sides provided to be inclined to the lower inner side between the outer drying net and the inner drying net connected to the inner drying net, and a feeding valve provided at a merging portion at the lower part of the grain drying chamber, It is a technique in which an L-shaped resistance plate that divides the flow of the flowing down grain is provided at the substantially central portion in the left-right direction across the falling room and the grain drying room, and can be used as a grain dryer. .
[0002]
[Prior art]
The grains stored in the upper grain storage chamber are separated from the left and right flow-falling chambers formed between the left and right flow-falling plates inclined to the inner lower part and the central mountain-shaped flow-falling plate. The grain drying chambers on both the left and right sides formed between the outer drying net and the inner drying net that are connected to the lower ends of the central downstream plate and inclined toward the lower inner side are provided at the confluence of the lower drying chambers. It is fed down by the rotational drive of the valve. In each of the drying chambers, the grains are exposed to dry hot air and dried while the circulation is repeated.
[0003]
[Problems to be solved by the invention]
When the grain to be dried has a high moisture content, or there is a lot of swarf and chopping, or when the grain pressure on the falling plate is different from that on the central falling plate, Grain stagnation occurred at the corners formed by the falling plates on both the left and right sides inclined to the lower part, and the grain sometimes became dry spots. This invention solved this problem. It is something to try.
[0004]
[Means for Solving the Problems]
For this purpose, the present invention includes a falling plate 8 that slopes downward from the machine wall 4 on both the left and right sides and a mountain-shaped central falling plate 9 at the center on the lower side of the grain storage chamber 7 that stores the grain. The flow chambers 10 formed between the right and left sides, the outer drying net 11 that is connected to the lower ends of the flow plates 8 on both sides and inclined to the lower inner side, and the lower ends of the central flow plate 9 are inclined to the lower inner side. In a grain dryer provided with a grain drying chamber 13 on both the left and right sides formed between the inner drying net 12 and a feeding valve 17 for feeding the grain to a confluence of the grain drying chambers 13 and 13. The feeding valve 17 is configured to rotate in the forward and reverse directions. The feeding valve 17 is driven to rotate in the forward direction, and the grain is drawn from the drying chamber 13 on one side of the left and right sides by the drawing port 17b. The grain is discharged from the mouth 17b, and the feeding valve 17 is a pumping mouth. 7b is configured to stop for a predetermined time while being in the discharge position, and when the predetermined time stop is completed, the feeding valve 17 is driven to rotate in reverse, and the grain is pumped from the drying chamber 13 on the left and right sides at the pumping port 17b. When the pumping port 17b reaches the lower discharge position, the grain is discharged from the pumping port 17b, and the feeding valve 17 is configured to stop for a predetermined time while the pumping port 17b is at the discharging position. position when the mouth 17b is stopped, always the structure is a discharge position of the lower discharging the grains, the right and left directions substantially central portion over between the flow-down chamber 10 and the grain drying chamber 13, flows down It is set as the structure of the grain dryer characterized by providing the resistance board 16 whose cross-sectional shape which divides | segments the flow of a grain is L-shaped.
[0005]
[Effects of the Invention]
The grains stored in the upper grain storage chamber 7 are flown from the right and left flow chambers 10 formed between the left and right flow plates 8 and the central mountain-shaped flow plate 9 inclined to the inner lower part, The grain drying chambers 13 on both the left and right sides formed between the outer drying net 11 and the inner drying net 12 that are connected to the lower ends of the flow falling plate 8 and the central flow falling plate 9 and incline toward the lower inner side are respectively dried. Feeding and flowing down are performed by forward and reverse rotation driving of a feeding valve 17 provided at a junction at the lower part of the chamber 13.
First, the feeding valve 17 is driven to rotate in the forward direction, and the grain is pumped from the drying chamber 13 on the left and right side at the pumping port 17b. When the pumping port 17b reaches the lower discharge position, the kernel is discharged from the pumping port 17b. The valve 17 is stopped for a predetermined time in a state where the drawing port 17b is at the discharge position. When the stop for the predetermined time is completed, the feeding valve 17 is driven to rotate in reverse, and the grain is pumped from the drying chamber 13 on the other side of the left and right sides by the pumping port 17b. When the pumping port 17b reaches the lower discharge position, Grains are discharged from the mouth 17b, and the feeding valve 17 is stopped for a predetermined time in a state where the pumping mouth 17b is at the discharge position. In addition, the position when the drawing-out port 17b of the feeding valve 17 is stopped is always the lower discharge position where the grain is discharged.
When the feed valve 17 provided at the junction at the lower part of each drying chamber 13 is driven to flow downward , an L-shape is provided in the center in the left-right direction across the downstream chamber 10 and the drying chamber 13. The resistance plate 16 splits the grains flowing down in the flow-down chamber 10 and the drying chamber 13 and feeds them down. In each of the drying chambers 13, the grains are exposed to dry hot air and dried while the circulation is repeated.
[0006]
【The invention's effect】
Flowing on both the left and right sides formed between a falling plate 8 that slopes downward from the machine walls 4 on the left and right sides and a central mountain-shaped flowing plate 9 in the center on the lower side of the grain storage chamber 7 that stores the grains. Between the chamber 10 and an outer drying net 11 connected to the lower ends of the flow-down plates 8 on both sides and inclined toward the lower inner side, and an inner drying net 12 connected to the lower ends of the central flow-down plates 9 and inclined toward the lower inner side. In the grain dryer provided with the grain drying chambers 13 on both the left and right sides to be formed and the feeding valve 17 for feeding the grains to the confluence of the grain drying chambers 13, 13, the feeding valve 17 rotates forward and backward. The feeding valve 17 is driven to rotate in the forward direction, and the grain is drawn from the drying chamber 13 on the left and right sides at the drawing port 17b. When the drawing port 17b reaches the lower discharge position, the grain is discharged from the drawing port 17b. The feeding valve 17 has a pumping port 17b at the discharge position. When the predetermined time stop is completed, the feeding valve 17 is reversely driven, and the grain is pumped from the drying chamber 13 on the left and right sides at the pumping port 17b, and the pumping port 17b is at the lower part. The grain is discharged from the drawing port 17b when it reaches the discharge position, and the feeding valve 17 is configured to stop for a predetermined time while the drawing port 17b is at the discharging position, and when the drawing port 17b of the feeding valve 17 stops. The position is configured to be a lower discharge position that always discharges the grain, and the flow of the flowing grain is divided into a substantially central portion in the left-right direction across the flow-down chamber 10 and the grain drying chamber 13. by cross-sectional shape provided with a L-shaped resistance plates 16, grain drying from flowing down chamber 10 is repeated a stream circulating grain drying chamber 13, the resistance plate 16, and these flows down chamber 10 The pressure of the grains applied to the left and right sides of the drying chamber 13 is equalized, and the grains do not stagnate in the corners formed by the machine wall 4 and the flow-down plate 8. Dry spots can be prevented.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The figure shows a state where a moisture sensor 2 for detecting moisture of a grain and a burner 3 for generating hot air are mounted on a circulation type grain dryer 1 for drying the grain. The dryer 1 is formed by front and rear and left and right machine walls 4 in a rectangular shape that is long in the front and rear direction, and a transfer basket 5 having a transfer spiral rotatably mounted on the machine wall 4 and a ceiling plate. 6 is provided, and a grain storage chamber 7 for storing grains is formed below the ceiling plate 6.
[0008]
On the lower side of the storage chamber 7, between the left and right sides of the inner wall 4 of the machine wall 4, between the falling plate 8 inclined to the inner lower part and the central falling plate 9 having a mountain-shaped cross section at the center, both left and right sides Is provided with a substantially V-shaped flow-down chamber 10. The lower side of the flow-down chambers 10 and 10 is connected to the lower ends of the flow-down plates 8 and 8 and is connected to the lower end of the central flow-down plate 9 and the outer drying net 11 provided to be inclined to the lower inner side. It is the structure which provided the grain drying chamber 13 in the state inclined to the inner lower part in the right-and-left both sides between the inner drying net | networks 12 inclined and provided in the inner lower part.
[0009]
The air exhaust chamber 14 is provided between the drying chambers 13 and 13 inside the central downstream plate 9 at the center. The blower chamber 15 is provided outside the drying chambers 13 and 13 below the flow-down plates 8 and 8 on both the left and right sides. These air blowing chambers 15 are provided with a hot air temperature sensor 15a for detecting the temperature of the dry hot air. Between the lower end portion of the flow-down chamber 10 and a predetermined upper position, and from the upper end portion of the drying chamber 13 to a predetermined lower position, and further at a substantially central position in the left-right direction between the flow-down chamber 10 and the drying chamber 13, In this configuration, a resistance plate 16 having a substantially L-shaped cross section is provided between the front and rear machine walls 4 and 4 on both the left and right sides. The resistance plate 16 divides the grain flowing down in the flow-down chamber 10 and the drying chamber 13 so that the pressure of the grains applied to the flow-down plate 8 on the left and right sides and the central flow-down plate 9 at the center is equalized. Thus, it is configured to prevent the grains that stagnate in the triangular corners (A) formed by the machine walls 4 on the left and right sides and the respective falling plates 8.
[0010]
The resistance plate 16 may be formed of a plate material. Also, as shown in FIG. 2, the resistance plate 16 is provided with an infinite number of passage holes 16 a that can pass the flowing grain to either side in the left-right direction. In this configuration, the resistance of the dry hot air passing through 13 is prevented, and the pressure of the grain on the resistance plate 16 is reduced. The upper end portion of the resistance plate 16 is bent inward, and the bent portion is rounded to prevent swarf and slashing.
[0011]
The converging part at the lower part of each drying chamber 13 is configured to pivotally support a feeding valve 17 that drives forward and reverse rotation to feed the grains in the storage chamber 7 through the respective falling chambers 10 and flow down in the respective drying chambers 13. It is. The feeding valve 17 has a configuration in which a pumping port 17b is provided on the outer peripheral portion of a cylindrical cylindrical body 17a that alternately draws grains from the drying chambers 13 on the left and right sides and discharges them at the lower part.
[0012]
The cereal basket 18 has a configuration in which a transfer spiral is rotatably supported and is provided below and communicated with the drying chambers 13 and 13. When the feeding valve 17 rotates and the pumping port 17b of the feeding valve 17 comes to the lower discharge position for discharging the grain, the photoelectric sensor for detecting the pumping port 17b and an ON-OFF switch type position sensor 17c. For example, a configuration is provided in which the support plate 17d on the inner side of the rear machine wall 4 is provided.
[0013]
A box-shaped burner case 19 is provided at the front portion in the exhaust chamber 9, and the burner 3 is mounted in the burner case 19. A blower path case 20 through which box-shaped dry hot air passes is provided on the outer surface of the front machine wall 4 where the blower chambers 15 and the drying chambers 13 are located, and this blower path case 20 is formed. A suction case 21 for sucking box-shaped outside air is provided on the outer surface of the front plate. The hot air generated from the burner 3 and the outside air sucked from the suction case 21 are mixed in the air passage case 21 to become dry hot air, and the dry hot air is supplied to the air passage case. From 20 through the blower chamber 15, the dry chambers 13 and 13 are crossed.
[0014]
An exhaust passage case 22 through which box-shaped exhaust air passes is provided on the outer surface of the rear machine wall 4 where the exhaust chambers 14 and 14 are located, and this exhaust passage case 22 is formed. An exhaust fan 23 is provided on the outer side surface of the rear plate. The exhaust fan 23 allows the hot dry air used for drying to go outside the exhaust chamber 14 and 14 through the exhaust passage case 22. This exhaust fan 23 is configured to be driven to rotate by an exhaust fan motor 23a.
[0015]
The valve motor 24 is configured to rotate in the forward and reverse directions. The valve motor 24 is provided on the rear machine wall 4, and the forward rotation of the valve motor 24 is instructed through a CPU 26 of a control device 25 described later. The valve motor 24 is driven to rotate in the forward direction, the feeding valve 17 is driven to rotate in the forward direction, and the grain is pumped from the drying chamber 13 on one side at the pumping port 17b of the cylindrical body 17a of the feeding valve 17, and this grain is removed. When the pumping port 17b comes to the lower discharge position, the pumping port 17b is discharged and the pumping port 17b is detected by the position sensor 17c. This detection is input to the CPU 26 of the control device 25. A stop command for forward rotation of the valve motor 24 is output from the CPU 26, and the forward rotation of the valve motor 24 is controlled to be stopped by this command. Seen up port 17b is configured to stop predetermined stops control time at the discharge position of the lower discharging the grain.
[0016]
When the predetermined time is over, the CPU 26 of the control device 25 outputs a command for starting the reverse rotation of the valve motor 24, and this command causes the valve motor 24 to be driven in reverse rotation so that the feeding valve 17 is reversely driven. When the rotary pump is driven, the grain is pumped from the other drying chamber 13 at the pumping port 17b of the cylindrical body 17a of the feeding valve 17, and the pumping port 17b comes to the lower discharge position for discharging the kernel. The pump 17 is discharged from the pumping port 17b, and the pumping port 17b is detected by the position sensor 17c. This detection is output from the CPU 26 of the control device 25 to stop the reverse rotation of the valve motor 24. The reverse rotation of the valve motor 24 is controlled to stop, and the drawing port 17b of the feeding valve 17 is controlled to stop at the lower discharge position for discharging the grain, It is configured to stop constant time.
[0017]
The feed valve 17 is repeatedly driven forward and reverse, whereby the grains in the drying chambers 13 and 13 are alternately pumped, and the grains in the drying chambers 13 and 13 are It is dried by repeating the circulation. Further, the stop position of the drawing port 17b of the feeding valve 17 is configured to always stop at the lower discharge position where the grain is discharged.
[0018]
The fuel pump 29 has a fuel valve and is provided inside the horizontal plate of the burner case 19. By opening and closing the fuel valve, the fuel pump 29 sucks fuel in the fuel tank 30 and opens the burner. 3 feeds. The blower 31 is provided in the burner cylinder 32 of the burner 3, and is driven to rotate at a speed by a speed change fan motor 33 provided in the burner cylinder 32. The air is blown by the blower 31 to the combustion portion of the burner 3. The hot air generated from the burner 3 and the outside air passing through the suction case 21 are mixed to form dry hot air.
[0019]
The diffusion plate 34 is provided below the supply port for supplying the transferred grain to the storage chamber 7 at the center part in the front-rear direction of the bottom plate of the transfer basket 5, and allows the storage chamber 7 to uniformly diffuse and reduce the grain. The groining machine 35 is provided on the outer side of the machine wall 4 on the front side, and a belt with a bucket conveyor 36 is stretched inside, and the upper end portion is provided with a discharge cylinder 37 between the start end portion of the transfer basket 5. Provided and communicated with each other, the lower end portion is communicated with the supply basket 38 between the terminal end of the grain collection basket 18.
[0020]
The groining machine motor 39 rotationally drives the belt with the bucket conveyor 36, the transfer spiral in the transfer basket 5, the diffusion plate 34, the transfer spiral in the grain basket 18, and the like. The moisture sensor 2 is provided at a substantially central portion in the up-down direction of the groining machine 35. In the moisture sensor 2, the moisture motor 41 is rotated by the transmission of the electrical measurement signal from the operation device 40 that is detachably provided on the front plate of the air passage case 20, so that each part of the moisture sensor 2 is Rotation drive is received and the grain which falls during conveyance to the upper part by the bucket conveyor 36 is received, and the moisture of this pulverized grain is detected while crushing the grain under pressure.
[0021]
The operation device 40 has a box shape and is a push button method in which a dryer 1, a moisture sensor 2, a burner 3 and the like are put on the surface plate of the box, and started for each of drying and discharging operations. Each ON-OFF switch start means 42, stop means 43 for stopping operation, moisture setting squeeze 44 for setting grain finish target moisture according to the operation position, and temperature of hot air generated from the burner 3 depending on the operation position A grain type setting margin 45 and an extension setting margin 46 to be set, a display unit 47 for digitally displaying various display items, a monitor display 48, and the like are provided.
[0022]
The control device 25 is provided in the operation device 40, and the detected values detected by the moisture sensor 2, the position sensor 17c, the hot air temperature sensor 15a, etc., the respective starting means 42, the stopping means 43, and the respective setting stagnation 44, 45 and 46 are input, and the CPU 26 or the like performs arithmetic and logical operations and comparison operations on these inputs. The CPU 26 uses the motors 23a, 24, 33, 39 and 41, fuel valves, and fuel pumps. 29 and the like are stopped and adjustment control is performed. The setting strokes 44, 45, 46 are of a rotary switch type, and predetermined numerical values, types, and the like are set according to the operation position.
[0023]
As shown in FIGS. 7 and 8, insertion holes 50 and 50 for inserting fork lift pawls 49 and 49 are provided at predetermined intervals in the front-rear direction of the left and right machine walls 4 and 4, respectively. Inside the walls 4, 4, the insertion holes 50, 50 receive the box-shaped reinforcing box bodies 51, 51 that reinforce the storage chamber 7 formed by the front and rear and left and right machine walls 4. The plates 52, 52 are fixedly provided, and the reinforcing box bodies 51, 51 are inserted into the receiving plates 52, 52 and then attached to the left and right machine walls 4, 4 with bolts, nuts and the like.
[0024]
When the assembly of the lower drying chamber 13 and the like is completed, the forklift pawls 49 and 49 are inserted into the insertion holes 50 and 50 of the storage chamber 7 and lifted to the upper part to lift the lower drying 13. It is the structure which superimposes and assembles to the upper part of a part. Thereby, after assembling the storage chamber 7 part on the ground, it can be lifted upward and polymerized to reduce the assembly man-hours and make the assembly work safe.
[Brief description of the drawings]
1 is an enlarged sectional view taken along line AA in FIG. 3. FIG. 2 is an enlarged side perspective view in which a resistance plate is partially broken. FIG. 3 is a partial sectional side view of a grain dryer. [Fig. 5] Fig. 5 is an enlarged front view of a part of the operating device. Fig. 6 is a block diagram. Fig. 7 is a diagram showing another embodiment, and is an enlarged side perspective view of the left and right machine wall. FIG. 8 is a diagram showing another embodiment, and is an enlarged side perspective view of a grain storage unit.
4 Machine wall 7 Grain storage chamber 8 Falling plate 9 Central falling plate 10 Flowing chamber 11 Outer drying net 12 Inner drying net 13 Grain drying chamber 16 Resistance plate 17 Feed valve

Claims (1)

Flowing on both the left and right sides formed between a falling plate 8 that inclines from the machine walls 4 on the left and right sides to the inner lower side, and a mountain-shaped central flowing plate 9 in the center on the lower side of the grain storage chamber 7 that stores the grains. Between the chamber 10 and an outer drying net 11 connected to the lower ends of the flow-down plates 8 on both sides and inclined to the inner lower side, and an inner drying net 12 connected to the lower ends of the central flow-down plates 9 and inclined to the lower inner side. In a grain dryer provided with a grain drying chamber 13 on both the left and right sides to be formed, and a feeding valve 17 for feeding the grain to the confluence of the grain drying chambers 13, 13,
The feeding valve 17 is configured to rotate forward and backward,
When the feeding valve 17 is driven to rotate in the forward direction, the grain is drawn from the drying chamber 13 on one of the left and right sides at the drawing port 17b. When the drawing port 17b reaches the lower discharge position, the grain is discharged from the drawing port 17b. Is configured to stop for a predetermined time in a state where the pumping port 17b is in the discharge position,
When the stop for the predetermined time is completed, the feeding valve 17 is driven to rotate reversely, and the grain is pumped from the drying chamber 13 on the other side of the left and right sides by the pumping port 17b. When the pumping port 17b reaches the lower discharge position, the pumping port 17b. The grain is discharged from the feeding valve 17, and the feeding valve 17 is configured to stop for a predetermined time in a state where the drawing port 17b is in the discharging position,
The position when the drawing port 17b of the feeding valve 17 is stopped is configured to be a lower discharge position for always discharging the grain,
Wherein in the lateral direction substantially central portion and the flow-down chamber 10 over between said grain drying chamber 13, wherein the cross-sectional shape to divide the flow of grain flowing down is provided an L-shaped resistance plates 16 Grain dryer .

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