JPH0749352Y2 - Grain flow device of grain dryer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain flow-down device of a grain dryer.

Conventional technology Conventionally, when drying the grains in the cooling chamber, the bottom chamber of the cooling chamber, the bottom plate of the upper collecting gutter, and the transfer spiral for the upper collecting grain are in the open state. While the circulation that flows down to the gutter, storage room, grain drying room and lower grain collecting gutter is repeated,
The hot air generated from the hot air device passes through the drying chamber and is sucked and discharged by the air blower, so that the grains flowing down in the drying chamber are exposed to the hot air and dried.

The position of the upper grain collecting trough, in which the upper spiral for collecting grains was installed, was the grain downflow device provided directly below the downflow chamber and in communication with the downflow chamber.

Problems to be Solved by the Invention When drying the grains contained in the cooling chamber of the grain dryer, the grains are discharged from the cooling chamber into the flow-down chamber, the bottom plate is open, and the transfer spiral for collecting upper grains is Top grain gutter in a stopped state, storage room,
While the circulation of flowing down to the grain drying chamber and the lower grain collecting trough is repeated, the hot air generated from the hot air device passes through the drying chamber and is sucked and exhausted by the air blower to flow down in the drying chamber. The inside grain is exposed to this hot air and dried.

During this drying operation, the position of the upper grain collecting trough, which houses the upper grain collecting spiral, is almost directly below the flow-down chamber, and the upper grain collecting spiral is in a stopped state. Long straw or the like mixed in the falling grain may be caught in the upper collecting grain transfer spiral, and this caught straw causes a poor flow-down in the grain flowing in the upper collecting trough. Then, a dry spot may be generated in the grain being dried, and the quality of this grain may be deteriorated, but this is intended to be prevented.

Means for Solving the Problems This invention was proposed in view of the above-mentioned problems, and the following technical means were taken. That is, the storage chamber 5 and the ventilation drying chamber 6 are provided below the cooling chamber 1 and the cooling chamber 1
Between the storage chamber 5 and the storage chamber 5, a downflow chamber 3 for guiding the grains to the lower storage chamber 5 is provided, and a grain collection chamber 4 is provided in communication with the downflow chamber 3, and the grain collection chamber 4 includes the grains. Is provided with a transfer spiral 10 for upper grain collection, and below the downflow chamber 3 and the grain collection chamber 4, the cooling chamber 1 side and the storage chamber 5 side are blocked or communicated with each other. In the grain dryer provided with a shutter 11 which can be freely opened and closed, the transfer spiral 10 for upper grain collection is provided.
Is disposed in a position deviated in the left-right direction while avoiding the flow-down passage of the flow-down chamber 3, and is configured as a grain flow-down device of a grain dryer.

Effect of the Invention When drying the grains contained in the cooling chamber 1 of the grain dryer, the grains are used for collecting the upper grain of the interior with the cooling chamber 1 to the downflow chamber 3 and the bottom plate 11 being open. While the transfer spiral 10 repeats the circulation of flowing down to the upper grain collecting trough 4, the storage chamber 5, the grain drying chamber 6 and the lower grain collecting trough 7, the hot air generated from the hot air device 8 The grains flowing down through the drying chamber 6 are exposed to the hot air and dried by passing through 6 and being sucked and discharged by the air blower 9.

During this drying operation, the position of the upper grain collecting trough 4 which houses the upper grain collecting transfer spiral 10 is provided below the downflow passage of the downflow chamber 3 and at a position deviated in the left-right direction. When the is opened, the grains flowing down from the falling chamber 3 immediately fall into the storage chamber 5 therebelow without contacting the upper grain collecting spiral 10.

Effect of the Invention According to the present invention, the position of the upper collecting trough 4 which houses the transfer spiral 10 for the upper collecting grain is shifted to the left or right side with respect to the downflow chamber 3, and thus the grain drying is performed. At this time, the grains that flow down from the downflow chamber 3 pass through the upper grain collection trough 4 and flow down into the lower storage chamber 5 without contacting the upper grain transfer spiral 10. As a result, even if long straw or the like is mixed in the grain, this long straw does not get caught in the upper helix transporting spiral 10 and, therefore, the occurrence of dry spots due to poor grain flow is eliminated. , The quality of the grain no longer deteriorates.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The illustrated example shows a circulation type grain dryer 12 having a cooling chamber 1 in the upper part, a storage chamber 5 in the middle part, and a grain drying chamber 6 in the lower part.

The dryer 12 has a rectangular shape that is long in the front-rear direction and has an upper transfer girder 15 in which an upper transfer spiral 14 is rotatably mounted on the upper part of the machine wall 13.
The ceiling plate 16 is provided, and the cooling chamber 1 for cooling the grains is formed below the ceiling plate 16.

On the lower side of the cooling chamber 1, the left and right outer flow shelves 2 and the central left and right flow shelves 2 are provided with left and right flow down chambers 3, 3 in the vertical direction. Diamond-shaped guide plates 17, 17 are provided in the central portion on the upper side of the chambers 3, 3.

The guide plates 17, 17 are provided.

The upper grain collecting troughs 4, 4 are provided in the inner side of the flow down chambers 3, 3 below the flow down chambers 3, 3, and the upper grain collecting troughs 4, 10 are provided in the upper grain collecting troughs 4, 4. The shutters 11 and 11 of the upper grain collecting gutters 4 and 4 are rotatably supported, and the shutters 11 and 11 are openable and closable.When the shutters 11 and 11 are open, the grains in the flow chambers 3 and 3 are: Without contacting the transfer helix for upper grain collection 10,10, it is configured to flow into the upper grain collecting troughs 4,4 from the flow-down chambers 3,3 and flow down in the upper grain collecting troughs 4,4, In the open state, the upper grain collecting transfer spirals 10 and 10 are in a stopped state.

When the shutters 11 and 11 are closed, the upper grain collecting transfer spirals 10 and 10 are rotationally driven to transfer the grains to the outside of the machine, and 18 and 18 are discharge funnels.
1, 11 are configured to open and close by bottom plate opening / closing motors 19, 19.

A lower transfer gutter 21 in which a lower transfer spiral 20 is rotatably mounted is provided in the space between the upper grit gutters 4, 4, and the lower transfer gutter 21 is provided.
The storage chamber 5 for storing grains is formed on the lower side of 21.

On the lower side of the storage chamber 5, four grain drying chambers 6 are provided between each of the three air exhaust chambers 22 on the left and right sides and the central portion and the air blowing chambers 23, 23 on the left and right sides. In the lower part of each of the drying chambers 6, each feeding valve 29 for feeding and flowing down the grains is provided.
Is rotatably supported, and 29 'is a feeding valve motor for rotatably driving each feeding valve 29 via a reduction mechanism 30.

Below each of the drying chambers 6, a lower grain collecting trough 7 in which a lower grain collecting transfer spiral 7'is rotatably mounted is connected.

On the front side of the machine wall 13, a blower path chamber 24 that communicates with the blower chambers 23, 23 is formed, and the hot air device 8 is detachably attached to the blower room 24 and the outer surface of the machine wall 13 is formed. Has
The hot air device 8 and the dryer 12 are installed, and an operating device 25 for starting and stopping each operation of drying and discharging is detachably attached.

An exhaust passage chamber 26 is formed on the rear side of the machine wall 13 so as to be able to communicate with the respective exhaust chambers 22 in the left and right outer sides and the central portion, and the exhaust passage chamber 26 has a central rear side exhaust duct 27. An exhaust fan 9 is provided, and an exhaust fan motor for rotationally driving the exhaust fan 9 is provided in the exhaust passage chamber 26.
28 is provided.

In the hot air device 8, the burner 31 is detachably provided in the burner case 31, and the fuel pump 33 having a fuel valve is detachably provided outside the lower plate of the burner case 31 to suck the fuel in the fuel tank 34. The burner 32 is supplied into the burner 32, and a blower 35 for supplying combustion air into the burner 32 and a blower motor 36 for rotationally driving the blower 35 are provided outside the upper plate.

Each supply for supplying the transfer grains to the inside of the cooling chamber 1 and the inside of the storage chamber 5 in the front-rear center part of the upper transfer gutter 15 bottom plate and the front-rear center part of the lower transfer gutter 21 bottom plate. Ports are provided, and lower diffusion plates 37, 37 are provided below the respective supply ports for uniformly diffusing and reducing the grains into the cooling chamber 1 and the storage chamber 5. Further, the cooling chamber 1 night and the storage chamber 5 are provided with full sensors 38, 38 for detecting the full state of grain. Reference numeral 39 is a motor for rotationally driving the lower transfer spiral 20 in the lower transfer gutter 21 and the lower diffusion plate 37.

A discharge funnel 49 is provided at the bottom of one end of the lower transfer gutter 21.
The discharge funnel 49 has an open / close valve that can be opened and closed by an open / close motor 50.
51 is provided, and when the on-off valve 51 is closed, the grain is transferred onto the lower diffusion plate 37 by the lower transfer spiral 20 in the lower transfer gutter 21 and the storage chamber 5 is transferred by the lower diffusion plate 37. The grains are uniformly diffused and supplied into the inside, and the grains are discharged from the lower transfer gutter 21 through the discharge funnel 49 to the outside of the machine when the opening / closing valve 51 is opened.

The grain-raising machine 40 is provided outside the machine wall 13 and is provided with a belt with a bucket conveyor 41 stretched inside, and a throw-out cylinder 42 is provided at the upper end, and one of the throw-out cylinders 42 is provided. Side and the starting end of the upper transfer gutter 15 are communicated with each other, and the other side of the ejection cylinder 42 and the starting end of the lower transfer gutter 21 are communicated with each other through a flow-down cylinder 43, and the lower end is connected with the lower grain collecting gutter. A supply gutter 44 is provided to communicate with the 9 end portion.

An on-off valve 46 that can be opened and closed by an on-off valve motor 45 that rotates in the normal and reverse directions is provided in the throw-out cylinder 42, and in the open state of the open-close valve 46, the grains are transferred from the throw-out cylinder 42 into the upper transfer gutter 15. Is supplied to
Further, the grains are supplied to the lower transfer gutter 21 from the throw-out cylinder 42 through the flow-down cylinder 43 when the opening / closing valve 46 is closed.

47 is an upper motor of the grain raising machine, which is configured to rotate and drive the belt with the bucket conveyor 41, the upper transfer spiral 14 in the upper transfer gutter 15, the upper diffusion plate 37, and the like, and in the lower grain collection gutter 7 The lower grain transfer spiral 7'is configured to be rotationally driven via the belt with the bucket conveyor 41. Further, 48 is a lower motor of the grain raising machine, and the upper grain collecting gutter 4,
The above-mentioned upper grain-collecting transfer spirals 10 and 10 in 4 are driven to rotate.

A moisture sensor 52 for detecting grain moisture is provided below the middle of the grain raising machine 21 in the vertical direction. This moisture sensor
52 is a transmission of an electrical measurement signal from the operating device 25, the moisture motor 53 is rotated and each part of the moisture sensor 52 is rotationally driven, and the grains that fall while being conveyed to the upper portion by the bucket conveyor 41 are collected. Upon receiving and crushing the grains, the moisture of the crushed grains is detected at the same time.

The operating device 25 has a box shape, and the dryer 12 and the hot air device 8 are put on the surface plate of the box body, and a start switch 54 for starting operation for each operation of drying and discharging, a stop for stopping operation. Switch 55, changeover switch 56 for switching between double drying in which grains are supplied to the cooling chamber 1 for drying, or single drying in which grains are supplied to the storage chamber 5 for drying, target finishing moisture of grain Is set according to the operating position, the moisture setting slurries 57, the dry hot air temperature generated from the burner 32 of the hot blast device 8 are set according to the operating positions, the grain type setting sever 58 and the swelling amount setting sever 59, the detected grains. A digital display unit 60 for alternately digitally displaying the moisture, the detected hot air temperature for drying, the remaining drying time, and the like, a monitor display, and the like are provided.

Further, an A / D converter 62 for A / D converting the detection values detected by the moisture sensor 52 and the hot air temperature sensor 61, and the input to which the conversion value converted by the A / D converter 62 is input. Circuit 63, the switches 54, 55, 56 and the setting knobs 57, 58, 59
And an input circuit 64 to which the detection value detected by the full sensor 38 is input, and a CPU 6 that performs arithmetic logic operation and comparison operation on various input values input from these input circuits 63 and 64.
5. The drying control device 67 is configured to include an output circuit 66 that receives various commands from the CPU 65 and outputs the commands. The setting knobs 57, 58, 59 are of a rotary switch type, and are configured such that predetermined numerical values, types, etc. are set depending on the operation position.

The operation of the above embodiment will be described below.

When operating the setting scoops 57, 58, 59 of the operating device 25 to predetermined positions and performing double drying with the grain dryer 12, the changeover switch
By operating 56 to the double drying side and operating the start switch 54 for starting the drying operation, each part of the dryer 12,
When the hot air device 8 and the moisture sensor 52 are started, hot air is generated from the burner 32 of the hot air device 8 and the shutters 11 and 11 of the upper grain collecting gutters 4 and 4 are opened, and at the same time, the upper grain collecting transfer is performed. The spirals 10 and 10 are controlled in a stopped state.

The hot air passes through the air passage chamber 24 and the air blowing chambers 23, 23, passes through the grain drying chambers 6, passes through the air exhaust chambers 22 and the air exhaust passage chambers 26, and is sucked and exhausted by the air exhauster 9, The grains stored in the cold storage chamber 1 are collected from the cold storage chamber 1 into the respective flow-down chambers 3, the upper collecting grain transfer spirals 10 and 10 without contacting the upper grain collecting troughs 4 and 4, and the storage chamber 5.
While being flowed down in each of the drying chambers 6 and exposed to the hot air to be dried, the air is fed to the lower portion by each feeding valve 29 and flowed down to flow from the lower grain collecting trough 7 through the supply trough 44 to the grain raising machine 40. It is transferred and supplied into the upper transfer gutter 15 through the lower grain transfer spiral 7 ', is conveyed to the upper part by the bucket conveyor 41, and is supplied into the upper transfer gutter 15 through the ejection cylinder 42. Is supplied by the upper transfer spiral 14 and is uniformly diffused and reduced into the cooling chamber 1 by the upper diffusion plate 37, is circulated and dried, and the moisture sensor 52 is set by operating the moisture setting grinder 57. When the same grain moisture as the finishing target moisture is detected, the drying control device of the operating device 25
67, the dryer 12 is automatically controlled to automatically stop the dryer 12 to stop the drying of the grain.

Further, when performing a single drying in the dryer 12, if the changeover switch 56 is operated to the single drying side to dry,
The grains accommodated in the storage chamber 5 are exposed to hot air while being flowed down from the storage chamber 5 in the respective drying chambers 6 to be dried, and are fed out to the lower portion by the respective feeding valves 29 and flowed down. From the lower grain collecting gutter 7 through the supply gutter 44 into the grain raising machine 40 by the lower grain collecting transfer spiral 7 ′, and is conveyed to the upper portion by the bucket conveyor 41 and the discharging cylinder 42. It is supplied to the inside of the flow-down cylinder 43 and the lower transfer gutter 21 through the lower transfer girder 21, and is transferred and supplied from the lower transfer gutter 21 to the lower diffusion plate 37 by the lower transfer spiral 20. When the moisture sensor 52 detects the same grain moisture as the finishing target moisture set by operating the moisture setting scoop 57 after being subjected to diffusion reduction and circulation drying, the drying control device 67 of the operating device 25 automatically controls. Then, the dryer 12 is automatically stopped to stop the drying of the grain.

When the dried grains are allowed to cool, by operating the start switch 54 that starts the staking operation, each part of the dryer 12 is started, and the shutters 11 of the upper grain collecting gutters 4 and 4 are.
At the same time when 11 is closed, the transfer spiral for upper grain collection 1
0 and 10 are controlled to stop.

The dried grains in the storage chamber 5 are fed from the storage chamber 5 to the lower portion in the respective drying chambers 6 by the feeding valves 29 and flow down to flow from the lower grain collecting trough 7 to the supply trough 44. Is transferred and fed by the lower grain collecting transfer spiral 7 ′ into the grain elevator 40, conveyed to the upper part by the bucket conveyor 41, and supplied into the upper transfer gutter 15 through the ejection cylinder 42, From the upper transfer trough 15 to the upper diffusion plate 37, the upper transfer spiral 14
And is evenly diffused and supplied into the cooling chamber 1 by the upper diffusion plate 37, and the dried grains are cooled in the cooling chamber 1.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a block diagram, FIG. 2 is an overall side view of a grain dryer, and FIG. 3 is an AA enlarged sectional view of FIG. Fig. 4 is an enlarged cross-sectional view taken along line BB of Fig. 2, Fig. 5 and Fig. 6 are enlarged rear views of a part of the grain dryer, and Fig. 7 is a perspective view of a part of the grain dryer, FIG. 8 is an enlarged front view in which a part of the grain dryer is broken. Explanation of reference numerals 1 ... Cooling room, 2 ... Downflow shelf 3 ... Downflow room, 4 ... Upper grain collecting trough, 5 ... Storage chamber, 6 ... Grain drying chamber, 7 ... Lower grain collecting trough, 8 ...... Hot air device 9 …… Exhaust fan, 10 …… Transfer spiral for upper grain collection 11 …… Shutter

Claims (1)

[Scope of utility model registration request] 1. A storage chamber 5 and a ventilation drying chamber 6 below the cooling chamber 1.
Is provided between the cooling chamber 1 and the storage chamber 5, and a downflow chamber 3 for guiding the grains to the lower storage chamber 5 is provided, and a grain collection chamber 4 is provided in communication with the downflow chamber 3. The upper part of the grain collecting chamber 4 is provided with a transfer spiral 10 for upper grain collecting in order to discharge the grains to the outside of the machine, and further, below the downflow chamber 3 and the grain collecting chamber 4, a cooling chamber 1 is provided.
In the grain dryer provided with a shutter 11 that can be opened and closed so as to cut off or connect the storage side and the storage chamber 5 side, the upper grain collecting transfer spiral 10 avoids the downflow passage of the downflow chamber 3 and extends in the left-right direction. A grain flow-down device for a grain dryer, wherein the grain flow-down device is disposed at a position deviated from the position.