JP2800306B2 - Grain drying equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a grain drying device.

[Problems to be solved by the prior art and the invention]

Conventionally, a cooling tub that receives raw grains and prevents ventilation at the initial stage, and receives hot-dried grains and stores them for a certain period of time, and a drying tank that performs normal drying are installed together. A form in which granules are circulated and dried and stored is known.

By the way, in order to discharge dried and stored grains,
In general, a dryer constituting a drying tank is provided with a conventional discharging mechanism, and the grains stored in the cooling bath are temporarily transferred to the dryer side and discharged from the discharging mechanism. Therefore, when circulating drying is separately performed on the dryer side, the already dried kernels cannot be discharged, which is inconvenient.

[Means for solving the problem]

It comprises a grain raising device 1 for transporting grains to the upper part, a drying tank 2 for containing and drying the grains, and a cooling tank 3 for containing and cooling the dried grains. Is a lower conveyor 4 that receives the grains in the drying tank 2 and transfers the grains to the grain raising device 1.
The grain raising device 1 is provided with a switching device 7 for switching and transporting the grains supplied from the grain raising device 1 to the drying tank 2 or the cooling tank 3. The grain drying apparatus is provided with a means for conveying the cold grains to the grain raising apparatus 1 and a means for discharging the grains outside the machine 8.

[Functions and Effects of the Invention]

The dried kernels pass from the drying tank 2 via the lower conveyor 4 and the grain raising device 1 to the cooling bath 3 via a route previously set to the cooling bath 3 by the switching device 7, Stored cool. When the cooled kernels are taken out of the machine, they are taken out of the machine 8 through a discharging means. When drying is performed again, the grains are transported from the cooling bath 3 to the grain raising device 1 and the transport destination of the grain raising device 1 is switched to the drying tank 2 side for transport.

As described above, the grain raising device 1 is used for circulating the grains of the drying operation,
There is an advantage that it can also be used for re-drying work from the cooling bath 3. In addition, the discharged outside of the cooled kernel can be directly discharged from the cooling tank 3 and can be executed independently of the grain circulation.
There is no restriction such as stopping the operation on the drying tank 2 side, and the discharge can be performed at any time, which is convenient.

〔Example〕

In the illustrated example, the grain drying apparatus is provided with a grain dryer 10 having a drying tank 2 for storing and drying the grains on the rear side, and a grain dryer 10 on the front side of the grain dryer 10. A grain device 1 is provided,
A cooling machine 11 having a cooling tank 3 is provided in front of the grain raising device 1.

The machine wall 13 of the dryer 10 has a rectangular shape that is long in the front-rear direction and includes front and rear wall plates and left and right wall plates.
And a burner case 14 'containing a burner 14 and an operating device 12 for starting and stopping the cooling device 11 for each of the operations of filling, drying, and discharging. 15, a blower motor 16 for rotationally driving the blower 15
And a valve motor 17.

A grain collecting gutter equipped with a transfer spiral type lower conveyor 4 for transferring grains in the front-rear direction is provided at a central portion of a lower portion inside the machine wall 13.
A drying chamber 19 formed between ventilation net plates is arranged in parallel on the upper side of the grain collecting gutter 18 and communicates with each other, and a delivery valve 20 for feeding and flowing down grains is provided in the lower part of each drying chamber 19. A hot air chamber 21 is formed between the insides of the respective drying chambers 19 to communicate with the burners 14, and an exhaust chamber 22 is formed outside the respective drying chambers 19 to communicate with the exhaust fan 15. In this configuration, each of the delivery valves 20 is rotationally driven by the valve motor 17 via a transmission mechanism.

The drying tank 2 for storing grains is formed above and connected to each of the drying chambers 19, and the drying tank 2 is provided with a ceiling plate 23 and a transfer spiral type upper conveyor 5 for transferring grains on the upper side of the drying tank 2. A transfer gutter 24 is provided, and a supply port for supplying transfer grains into the drying tank 2 is provided at a central portion of the transfer gutter 24, and grains are evenly introduced into the drying tank 2 below the supply port. The drying tank 2 is provided with a diffusion plate 25 for performing diffusion reduction. The drying tank 2 is provided with a full sensor 35 for detecting the full state of grains in the drying tank 2.

The grain raising device 1 is provided at a front portion of the front wall plate, and internally a bucket conveyor 26 belt is stretched between upper and lower pulleys,
A discharge tube 27 is provided and communicated between the upper end and the start end of the transfer gutter 24, and a supply gutter 28 is provided and communicated between the lower end and the end of the grain collection gutter 18. A grain-raising machine motor 29 is provided at the upper part of the grain device 1 and is moved by the grain-raising machine motor 29 through the bucket conveyor 26 belt, the upper conveyor 5 in the transfer gutter 24, the diffusion board 25 and the bucket conveyor 26 belt. And the upper conveyor 6 in the cooling transfer gutter 32 of the cooler 11 is also configured to rotate and drive the lower conveyor 4 in the grain collecting gutter 18. The part receives a grain falling during the transportation to the upper part by the bucket conveyor 26, and crushes and crushes the grain. At the same time, a moisture sensor 30 for detecting the moisture of the crushed grain is provided. Each part is configured to be driven to rotate by a moisture motor 31 provided inside. A hopper for stuffing grains
48 is provided.

A switching device 7 is provided between the lower end of the transfer gutter 24 and the upper end of the cooling transfer gutter 32 of the cooler 11, and the switching device 7 closes the opening of the transfer gutter 24 bottom plate. An opening / closing valve 33 for opening and closing freely and a solenoid 34 for opening and closing the opening / closing valve 33 are provided. When the opening / closing valve 33 is closed, the grains are transferred to the upper conveyor 5 of the transfer gutter 24 by the transfer gutter 24. The grain is transferred to the diffusion plate 25 and is supplied to the diffusion plate 25. When the on-off valve 33 is opened by the operation of the solenoid 34, the grain is transferred to the transfer trough.
The cooling water is supplied from the opening 24 to the cooling transfer gutter 32 of the cooler 11 through the switching device 7.

The wall 36 of the cooler 11 has a rectangular shape which is long in the front-rear direction and includes front and rear wall plates and left and right wall plates.
Provided on the rear wall plate, the burner case 1 of the dryer 10
The configuration is provided with a cooling air discharge valve motor 65 that rotationally drives the air discharge cylinder 38 and the cooling discharge delivery valve 42 that communicate with 4 ′.

In the center of the lower part of the machine wall 36, there is provided a cooling and collecting gutter 40 having a transfer spiral type lower conveyor 9 therein for transferring the grains in the front-rear direction. The through-air drying chambers 41 formed between the plates are arranged side by side to communicate with each other, and the lower part of each of the through-air drying chambers 41 is provided with the cooling / cooling delivery valve 42 for feeding and flowing down the grains. 41, a ventilation chamber 43 is formed between the insides, and a cooling / discharging exhaust chamber 44 is formed outside each of the ventilation drying chambers 41. From the ventilation port 37 to the ventilation chamber 43, the respective ventilation drying chambers 41, the respective cooling / discharging exhaust chambers 44, and the exhaust cylinders
38, the grains are sucked into the burner case 14 ′, and the grains in each of the ventilation drying chambers 41 are blown and dried. A cooling supply gutter 49 is provided between the lower part and the cooling motor, and a cooling motor that rotates in the forward and reverse directions is provided at the front end of the cooling and collecting gutter 40.
39 is provided, and the grains are transferred by the lower conveyor 9 by the reverse rotation of the transfer motor 39, and are supplied from the cooling and collecting grain gutter 40 to the grain raising device 1 through the cooling and cooling supply gutter 49, Also, the grains are transferred by the lower conveyor 9 by the forward rotation, and are allowed to cool down.
It is configured to be supplied from 40 to a take-out conveyor 50 outside the machine 8.

The cooling tank 3 for storing and cooling the grains is formed on the upper side of each through-air drying chamber 41 so as to communicate therewith. The ceiling plate 45 and the transfer spiral system for transferring the grains are formed above the cooling tank 3. The cooling transfer gutter 32 having the upper conveyor 6 therein is provided, and a supply port for supplying the transfer kernels into the cooling tank 3 is provided at the center of the cooling region tank gutter 32. On the lower side, a cooling diffuser 46 for uniformly diffusing and reducing the grains into the cooling tank 3 is provided, and the cooling tank 3 is filled with the grains in the cooling tank 3. This is a configuration in which a cooling-full amount sensor 47 for detecting the amount state is provided.

An opening is provided in the front end low plate of the cooling water collecting gutter 40, and the transported grains are discharged and supplied from the opening to the take-out conveyor 50, and the take-out conveyor 50 is transferred to rolls at both left and right ends. This is a configuration in which a belt is stretched, and grains are transported by this transport belt.

The operating device 12 has a box shape, and the starter switch 51 for starting the dryer 10 and the cooler 11 for each of the drying and discharging operations, and the stop switch for stopping the dryer 10 and the cooler 11 on the surface plate of the box body. 52, each temperature setting knob 53 for setting the temperature of the hot air generated from the burner 14 according to the operation position of the grain type and the filling amount, a moisture setting knob 54 for setting the finishing target moisture of the kernel by the operation position, A circulation setting knob 55 operated when the kernels are loaded into both the dryer 10 and the cooler 11 and the loaded kernels are simultaneously circulated, the grain moisture detected by the moisture sensor 30 and the temperature. The hot air chamber 21 detected by the sensor 56
Display window for alternately displaying hot air temperature and remaining drying time inside
57 and a monitor display etc. are provided, and a drying control device 58, a temperature control device 59 and a timer 60 are provided therein, and each of the setting knobs 53, 54 and 55 is a rotary switch type. , A predetermined numerical value is set according to the operation position.

The drying control device 58 and the temperature control device 59 include an A / D converter that performs A / D conversion of various detected values, an input circuit to which the converted value converted by the A / D converter is input, and each setting knob. Input circuits for inputting the operations of the switches 53, 54, 55 and the respective switches 51, 52; CPUs for performing arithmetic logic operation and comparison operation on various input values input from these input circuits;
And an output circuit that receives and outputs various commands issued from the CPU.

The drying control by the drying control device 58 is performed as follows, and the detected grain moisture detected by the moisture sensor 30 is compared with the set finish target moisture set by operating the moisture setting knob 54. When the same grain moisture as the set finish target moisture is detected, the drying controller 58 automatically controls the dryer 10 to stop automatically. When the start switch 51 for starting the filling operation is operated, the dryer 10 is started and when the full sensor 35 detects the filling kernel, the inside of the drying tank 2 of the drying machine 10 is filled with the kernel. The configuration is such that the dryer 10 is automatically stopped when it is detected that the dryer is full. When the start switch 51 for starting the drying operation is operated, the dryer 10, the burner 14, and the moisture sensor 30 are started to start drying of the grain, and the stop is performed as described above. In this configuration, the dryer 10 is automatically stopped by the water content. When the start switch 51 for starting the discharge operation is operated, other than the burner 14 of the dryer 10 and the upper conveyor 6 and the cooling diffuser 46 of the cooler 11 are started, and the switching device 7 is opened and closed. The valve 33 is controlled to be opened by the solenoid 34, and the dried grains are conveyed to the upper part by the bucket conveyor 26 of the grain raising device 1, and the throwing cylinder 27, the transfer trough 24, is supplied into the cooling transfer gutter 32 via the switching device 7, and is supplied from the cooling transfer gutter 32 into the cooling bath 3;
The stop of the cooler 10 and the cooler 11 is controlled, and the dried kernels are allowed to cool for a predetermined time set and stored in the timer 60. Is controlled to restart, and at the same time the cooling / cooling delivery valve 42 is driven to rotate, the transfer motor 39 is rotated forward, and the lower conveyor 9 is driven to rotate forward. It is transferred and discharged from the front end of the cooling and collecting gutter 40 onto the take-out conveyor 50.
The configuration is such that the cooling fan 10 and the cooling device 11 are automatically stopped.

In addition, when the kernels are put in both the dryer 10 and the cooler 11, and the kernels are circulated, the circulation setting knob is used.
Operate 55 to circulation and start switch 51 to start drying
Is operated by the drying control device 58, the portion of the dryer 10 other than the burner 14 and the cooling device 11 are driven to rotate. When the amount is detected, automatic switching is performed so that the kernels are inserted into the cooling device 11.When the cooling device 11 becomes full due to this switching, the cooling full sensor 47 detects the full amount. During this circulation, the transfer motor 39 is rotated in the reverse direction, and the reverse rotation of the transfer motor 39 drives the lower conveyor 9 in the reverse rotation, so that the grains in both the lower conveyor 4 and the lower conveyor 4 are rotated. , 9, is transferred into the grain raising device 1, is conveyed upward by the bucket conveyor 26 of the grain raising device 1, and is set in the timer 60 and stored in the switching device 7 at predetermined time intervals. Of the on-off valve 33 is the solenoid 34
The grains transported by the bucket conveyor 26 are alternately diffused and reduced into the dryer 10 and the cooler 11, and the circulation is repeated in both of them. The drying control device 58 is configured to control the drying so that the particles are air-dried by the outside air sucked through the air vent 37.

The temperature control by the temperature control device 59 is performed as follows. A detection value detected by the temperature sensor 56 is input to the temperature control device 59, and the temperature setting knobs are set.
53 The hot air temperature set by operating
The set hot air temperature and the detected hot air temperature are compared to each other, and if they are different, the amount of fuel supplied to the burner 14 and the amount of combustion air are controlled by the temperature control device 59. It is.

FIGS. 5 and 6 show another embodiment.
As shown in FIG. 5 and FIG.
Is divided into three parts, the part A communicates with the transfer gutter 24, the part B communicates with the cooling transfer gutter 32, and the part C communicates with the take-out conveyor 50 via the discharge pipe 61. A rotatable switching valve 62 is provided in each of the parts A, B, and C, and a switching solenoid 63 for rotating the switching valve 62 is provided. The operation of the switching solenoid 63 causes the switching valve 62 to rotate. Is turned to cause the grains to flow down to any of the a, b, and c portions of the discharge cylinder 27. The operation of each of the switching solenoids 63 is performed by a switching knob provided on the surface plate of the operating device 12. Only
The operation position of the operation device 64 is input to the drying control device 58 of the operation device 12, and this input causes
It is also possible to adopt a configuration controlled by 58 and a configuration in which any one of them can be easily switched and supplied.

 Hereinafter, the operation of the above embodiment will be described.

When drying the grains inserted into the drying tank 2 of the grain dryer 10, the setting knobs 53 and 54 of the operating device 12 are operated to predetermined positions, and the start switch 51 for starting the drying operation is set. By operating, each part of the dryer 10, the burner 14, the moisture sensor 30 and the like are started, hot air is generated from the burner 14, and the hot air passes from the hot air chamber 21 to each of the drying chambers 19, and each of the exhaust air chambers
After being sucked and exhausted by the air blower 15 through the air blower 22, the grains contained in the drying tank 2 are exposed to the hot air while flowing down from the drying tank 2 through the drying chamber 19 to be dried. The feed is fed to the lower portion by the feed valve 20 and is fed down into the grain collecting gutter 18, and is transferred from the grain collecting gutter 18 to the grain raising device 1 via the supply gutter 28 by the lower conveyor 4, and is supplied to the bucket conveyor 26. And is supplied to the inside of the transfer gutter 24 via the ejection tube 27,
From the transfer gutter 24, it is transferred and supplied to the diffusion plate 25 by the upper conveyor 5, and is uniformly diffused and reduced into the drying tank 2 by the diffusion plate 25, and is circulated and dried.
When detecting the same grain moisture as the finish target moisture set by operating 54, the drying control device 58 of the operating device 12 automatically controls the drying machine 10 to automatically stop the drying of the grain. .

When the dried grains are allowed to cool, the operating device 12
By operating the start switch 51 for starting the discharge operation of the dryer, the parts of the dryer 10 other than the burner 14 and the cooler 11
The upper conveyor 6 and the cooling diffuser 46 are driven to rotate, and at the same time, the on-off valve 33 of the switching device 7 is controlled to be opened by the solenoid 34, and the bucket conveyor 26 of the grain raising device 1 of the dryer 10 The dried kernels conveyed to the upper part are
From the cooling transfer trough 32 through the switching device 7, is transferred from the cooling transfer trough 32 to the cooling diffusion plate 46 by the upper conveyor 6, and is cooled and cooled by the cooling diffusion plate 46. The drying machine 10 and the cooling machine 11 are stopped when the supply is completed, and the dried grains are allowed to cool for a predetermined time set in the timer 60, and the predetermined time has elapsed. When the release is finished, the cooling device 11 is started again, the cooling discharge valve 42 and the lower conveyor 9 are driven to rotate, and the cooled kernel is discharged to the lower portion by the cooling discharge valve 42 and flows down. The lower conveyer is supplied into the cooling and collecting gutter 40, and is transferred and discharged from the cooling and collecting gutter 40 onto the take-out conveyor 50, and is transferred and discharged by the take-out conveyor 50.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an overall side view of a grain drying apparatus, partially broken away, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 1 is a cross-sectional view taken along the line BB of FIG. 1, FIG. 4 is a front view of a part of the grain dryer in which a part of the grain dryer is partially broken, FIG. 5 and FIG. 6 are views showing another embodiment, and FIG. FIG. 6 is a partially cutaway front view of the grain dryer, showing a part of the grain dryer. DESCRIPTION OF SYMBOLS 1 ... Grain raising device, 2 ... Drying tank 3 ... Cooling tank, 4 ... Lower conveyor 5 ... Upper conveyor, 6 ... Upper conveyor 7 ... Switching device, 8 ... Outside machine 9 …… Lower conveyor

Claims (1)

(57) [Claims] 1. A grain raising apparatus 1 for transporting grains to the upper part, a drying tank 2 for containing and drying the grains, and a cooling tank 3 for containing and cooling the dried grains and allowing the grains to cool. On the drying tank 2 side, there is provided a lower conveyor 4 for receiving the grains in the drying tank 2 and transferring it to the above-mentioned grain raising device 1.
A switching device 7 for switching and transporting the kernel supplied from the drying tank 2 or the cooling bath 3 to the drying tank 2 or the cooling bath 3; A grain drying device provided with means for discharging to the outside 8 of the machine.