JPH03113277A - grain drying equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a grain drying device.

Conventional technology Conventionally, a drying tank for storing and drying grains is provided with an upper conveyor at the top and a lower conveyor at the bottom.The grains stored in this drying tank are transported by this lower conveyor and dried The grain is supplied to a grain raising device installed at the rear of the tank, transported to the upper part by this grain raising device, supplied to the upper conveyor, transported by this upper conveyor, and supplied into the drying tank.The cycle is repeated. The grains are dried, and when the dried grains are left to cool, they are supplied from this grain raising device to the cooling grain raising device located in front of the cooling tank provided at the rear of this drying tank. The grains are transported to the upper part by the cooling raising device and supplied to the cooling upper conveyor, then transported by the cooling upper conveyor and supplied into the cooling tank, and are left to cool in the cooling tank. This was a drying device in which the grains were transferred to the outside of the machine by a conveyor provided at the bottom of the cooling tank.

Problems to be Solved by the Invention The grains stored in the drying tank and dried are transferred from the drying tank by a lower conveyor and supplied into a grain raising device, and are transported to the upper part by this grain raising device and then transported to the upper part by this grain raising device. The grains are supplied to the conveyor, transported by this upper conveyor, and supplied into the drying tank, where they are dried while being repeated. The grains are supplied into the equipment, conveyed to the upper part of this air-cooling raising device, supplied to the air-cooling upper conveyor, transferred by this air-cooling upper conveyor and supplied into the air-cooling tank, and left in the air-cooling tank. The cooled and air-cooled grains are transferred from the cooling tank by a cooling lower conveyor and discharged outside the machine.

In addition to simplifying the structure of the drying tank and cooling tank to reduce costs, the configuration allows for return from the cooling tank to the drying tank or switching the discharge outside the machine, making re-drying easier. I am trying to make it possible.

Means for Solving the Problems In the present invention, a drying tank 2 for storing and drying grains is disposed on one side of a grain raising device 1 for transporting grains to the upper part, and a drying tank 2 for storing and drying grains is disposed on the other side. A cooling tank 3 for accommodating and cooling dried grains is provided opposite to the drying tank 2, and the drying tank 2 is connected to a lower conveyor for receiving the grains in the drying tank 2 and transferring them to the grain raising device 1. 4 and
An upper conveyor 5 of the drying tank 2 that receives the grains supplied from the grain raising device l and a switching device 7 that switches and conveys the grains to the upper conveyor 6 of the cooling tank 3 is provided. A grain drying device is constructed in which a lower conveyor 9 is provided at the bottom of the tank 3 to selectively convey the air-cooled grains to the grain raising device 1 and outside the machine 8.

Effect of the Invention The grains stored in the drying tank 2 and dried are transferred from the drying tank 2 by a lower conveyor 4 and supplied into the grain raising device 1, and transported to the upper part by this grain raising device 1. The grains are supplied to the upper conveyor 5 by operating the switching device 7, and are dried while the circulation of being transported by the upper conveyor 5 and supplied into the drying tank 2 is repeated, and the dried grains are left to cool. When supplying into the tank 3 and cooling it, the switching device 7
Through this operation, the dried grains conveyed to the upper part of the grain raising device 1 are supplied from the grain raising device 1 to the upper conveyor 6 of the cooling tank 3, and are transferred by this upper conveyor 6 to the grain raising device 1. The grains that have been supplied into the cooling tank 3 and left to cool in the cooling tank 3 are transferred by the lower conveyor 9 of the cooling tank 3 to the machine. It is discharged to outside 8.

Further, when the cooled grains are to be supplied again into the drying tank 2 for re-drying, for example, the lower conveyor 9 is driven to rotate in the opposite direction, and the lower conveyor 9 supplies the grains to the grain raising device 1. The grain is conveyed to the first part by this raising device 1, and the circulation is repeated from the upper conveyor 5 to the drying tank 2, to the lower conveyor 4, and then to the grain raising device 1 in the same way as described above. The grains are re-dried.

Effects of the Invention According to the present invention, it is possible to supply grains to the drying tank 2 or the cooling tank 3 using - grain raising devices 1, which simplifies the configuration and reduces costs. By driving the lower conveyor 9 of the tank 3 in forward and reverse rotation, the cooled grains in the cooling tank 3 can be switched and discharged to the drying tank 2 or outside the machine 8, thereby re-drying the grains. It can be done easily.

Embodiment In the ward system, the grain drying device is equipped with a grain dryer IO having a drying tank 2 for storing and drying grains on the rear side, and a grain dryer 10 on the front side of this grain dryer 10. is equipped with a grain raising device 1, and a cooling device 11 having a cooling tank 3 on the front side of the grain raising device 1.
This is a configuration in which .

The machine wall 13 of the dryer 10 has a rectangular shape that is long in the front and rear direction and is made up of front and rear wall plates and left and right wall plates. Operating device 12 and burner 1 for starting and stopping operations for each task
It has a configuration including a burner case 14' with 4 inside,
The rear wall plate is provided with an exhaust fan 15, an exhaust fan motor 16 for rotationally driving the exhaust fan 15, and a pulp motor 17.

A grain collection gutter 18 is provided in the center of the lower part of the machine wall 13, and is equipped with a lower conveyor 4 of a spiral type for transporting grains in the front-rear direction. The formed drying chambers 19 are arranged in parallel and communicated with each other.
The lower part is equipped with a feeding valve 20 for feeding and flowing down the grains, and a hot air chamber 2 is installed between the inner sides of each drying chamber 19.
1 in communication with the burner 14, and each drying chamber 19
An exhaust chamber 22 is formed on the outside and communicated with the exhaust fan 15, and each delivery valve 20 is rotationally driven by the valve motor 17 via a speed change mechanism.

The drying tank 2 for storing grains is formed above each drying chamber 19 and communicated with the drying tank 2, and a ceiling plate 23 and a spiral upper conveyor 5 for transporting the grains are installed above the drying tank 2. A transfer gutter 24 is provided, and a supply port for supplying transferred grains into the drying tank 2 is provided in the center of the transfer gutter 24, and a supply port for supplying the transferred grains into the drying tank 2 is provided below the feed port. The structure includes a diffusion plate 25 for diffusion and reduction, and a full amount sensor 35 is provided in the drying tank 2 to detect the full state of grains in the drying tank 2.

The grain raising device l is provided in the front part of the front wall board, and inside thereof, a packet conveyor 26 belt is stretched between the upper and lower pulleys,
A dispensing tube 27 is provided between the upper end and the starting end of the transfer gutter 24 for communication, and a supply gutter 28 is provided between the lower end and the terminal end of the grain collection gutter 18 for communication. A grain raising machine motor 29 is provided on the upper part of the grain machine 1, and the grain raising machine motor 29 operates the packet conveyor 26 belt, the upper conveyor 5 in the transfer gutter 24, the spreading plate 25, and the packet conveyor 2.
The lower conveyor 4 in the grain collecting trough 18 via a belt 6
At the same time, the upper conveyor 6 in the cooling transfer gutter 32 of the cooling device 11 is also rotationally driven. A moisture sensor 30 is provided to receive the grains falling into the interior, crush the grains under pressure, and at the same time detect moisture in the crushed grains. Each part of the moisture sensor 30 is rotated by a moisture motor 31 provided inside. It is a driving configuration,
Further, a loading hopper 48 for loading grains is provided at the lower part.

A switching device 7 is provided between the lower side of the starting end of the transfer gutter 24 and the upper side of the starting end of the cooling transfer gutter 32 of the cooling machine 11,
This switching device 7 includes an on-off valve 33 that freely opens and closes the opening of the bottom plate of the transfer gutter 24, and a solenoid 34 that opens and closes this on-off valve 33. When the on-off valve 33 is closed, grains are The grains are transported through the transfer gutter 24 by the upper conveyor 5 of the transfer gutter 24 and supplied onto the diffusion plate 25, and the solenoid 34 is operated to open the on-off valve 33, and the grains are , is configured to be supplied from the opening of the transfer gutter 24 through the switching device 7 into the cooling transfer gutter 32 of the cooling device 11.

The mechanism 36 of the cooling device 11 has a rectangular shape that is long in the front and back direction and is made up of front and rear wall plates and left and right wall plates, and the front wall plate is provided with a ventilation hole 37, and the rear wall plate is provided with the burner case of the dryer 10. 14' and an air exhaust pipe 38 and cooling delivery valve 4 communicating with
This configuration includes a cooling valve motor 65 that rotates the cooling valve motor 65.

At the center of the lower part of the mechanism 36, there is provided a cooling grain gutter 40 equipped with a lower conveyor 9 of a spiral type for transporting grains in the front-rear direction, and a ventilation mesh plate is installed above the cooling grain gutter 40. Ventilation drying chambers 41 formed in between are arranged in parallel and communicated with each other, and a cooling delivery valve 42 for feeding and flowing grains is installed in the lower part of each ventilation drying chamber 41. A ventilation chamber 43 is formed between the inner sides, and a cooling ventilation chamber 44 is formed outside each ventilation drying chamber 41. The rotation of the exhaust fan 15 of the dryer 10 allows outside air to flow through the air. From the ventilation port 37 to the ventilation chamber 43 and each ventilation drying chamber 41
, the grains are sucked into the burner case 14' through the cooling air exhaust chambers 44 and the exhaust tube 38, and the grains in each ventilation drying chamber 41 are subjected to ventilation drying. , a cooling supply gutter 49 is provided between the terminal end of the cooling grain collection gutter 40 and the lower part of the grain raising device 1 for communication, and a A transfer motor 39 that rotates in the opposite direction is provided, and as the transfer motor 39 rotates in the reverse direction, the grains are transferred along the lower conveyor from the cooling collection gutter 40 to the cooling supply gutter 49 to the grain raising device 1. The grains are fed into the inside of the machine, and by forward rotation, the grains are transferred by the lower conveyor 9 and are supplied from the cooling collection gutter 40 onto the take-out conveyor 50 outside the machine 8.

Above each ventilation drying chamber 41, the cooling tank 3 for storing and cooling grains is formed and communicated with each other, and above the cooling tank 3, there is a ceiling plate 45 and a transfer spiral system for transferring the grains. The cooling transfer gutter 32 is provided with the upper conveyor 6 installed therein, and a supply port for supplying transferred grains into the cooling tank 3 is provided in the center of the cooling transfer gutter 32. A cooling diffusion plate 46 is provided on the side to uniformly diffuse and return grains into this cooling tank 3. This configuration includes a cooling full amount sensor 47 that detects the state.

An opening is provided in the lower plate at the front end of the cooling grain trough 40, and the grain is discharged and supplied from this opening onto the take-out conveyor 50. This is a structure in which the grains are passed through the belt, and the grains are transferred by this transfer belt.

The operating device 12 has a box shape, and the dryer 10 and the cooling device 11 are mounted on the surface plate of the box, and includes start switches 51 for starting and stopping operations for each drying and discharging operation, and a stop switch 52 for stopping the operations. , each temperature setting switch 53 for setting the temperature of the hot air generated from the burner 14 according to the operating position of the grain type and the amount of rice being loaded, a moisture setting switch 54 for setting the finishing target moisture of the grain according to the operating position, and the drying. [Circulation setting control 55 operated when grain is loaded into both the cooler 10 and the cooling machine 11 and the loaded grain is circulated simultaneously; grain moisture detected by the moisture sensor 30; temperature sensor 56
The structure includes a display window 57 and a monitor display that alternately display the hot air temperature in the hot air chamber 21 detected by the hot air chamber 21 and the remaining drying time, etc., and a drying control device 58, a temperature control device 59, and a timer 60 inside. Each of the settings 53, 54, and 55 is of a rotary switch type, and a predetermined value is set depending on the operating position.

These drying control device 58 and temperature control device 59 include an A-D converter that converts various detected values into A-D converters, an input circuit into which converted values converted by this A-D converter are input, and the respective settings. 53, 54, 55 and the input circuits to which the operations of the respective switches 51, 52 are input, and a CPU that performs arithmetic and logical operations, comparison operations, etc. on the various input values input from these input circuits.The CPU receives commands from this CPU. It consists of an output circuit that receives and outputs various commands.

G1 Drying control by the drying control device 58 is performed as described below, in which the detected grain moisture detected by the moisture sensor 30 and the target finish moisture content set by operating the moisture setting knob 54 are controlled. When the moisture content of the grains is the same as the set finishing target moisture content, the drying control device 58 automatically controls the drying machine 10 to automatically stop the dryer 10. When the start switch 51 is operated to start the stakeout work,
The dryer IO starts and transfers the loaded grains to the full amount sensor 35.
When this is detected, it is configured to detect that the inside of the drying tank 2 of this dryer 10 is full of grains and automatically stop this dryer 10. The start switch 5 starts the drying operation.
1 is operated, the burner 14 and the moisture sensor 30 of the dryer IO1 are started to start drying the grains, and the dryer 10 is automatically stopped depending on the detected grain moisture as described above. It is configured to stop. When the start switch 51 to start the discharge operation is operated, the dryer 10 other than the burner 14, the upper conveyor 6 and the cooling diffusion plate 46 of the cooling device 11 are started, and the switching device 7 starts.
The on-off valve 33 is controlled to be open by the solenoid 34, and the dried grains are conveyed to the upper part by the packet conveyor 26 of the grain raising device 1, and from this grain raising device 1 to the discharging tube 27, It is supplied into the cooling transfer gutter 32 via the transfer gutter 24 and the switching device 7, and is supplied from the cooling transfer gutter 32 into the Moeki air cooling tank 3. When this supply is finished, the dryer 10 and This cooling machine 11 is controlled to stop, and the dried grains are left to cool for a predetermined time set and stored in the timer 60, and when the cooling ends after this predetermined time has passed, the cooling machine 11 is restarted. The start-up is controlled, and at the same time the cooling delivery valve 42 is rotated, the transfer motor 39 is rotated in the forward direction, the lower conveyor 9 is driven in the forward rotation, and the cooled grains are transferred by the lower conveyor 9. , the above-mentioned air-cooled fruit grain gutter 4
When the dryer 10 and the cooling device 11 are discharged from the front end onto the take-out conveyor 50 and the discharge is completed, the dryer 10 and the cooling device 11 are automatically stopped.

When grain is loaded into both the dryer 10 and the cooling machine 11 and the grain is circulated, the circulation setting switch 55 is operated to circulate, and the start switch 51 is operated to start drying. Then, the drying control device 58
110 other than the burner 14 and the cooling device 11 are rotationally driven, and during this grain loading, the full amount sensor 3
When 5 detects the full amount of grains, it is configured to switch to 0 mode so that the grains are loaded into the cooling device 11, and when the inside of the cooling device 11 becomes full due to this switching, the cooling device 11 is filled with grains. ? sensor 4
7 is a configuration for detecting this full amount, and during this circulation, the transfer motor 39 is rotated selectively,
By the reverse rotation of the transfer motor 39, the lower conveyor 9 is driven to rotate in the opposite direction, and the grains in both are transferred and supplied into the grain raising device 1 by the respective lower conveyors 4 and 9. The packet is conveyed to the upper part by the packet conveyor 26, and the on-off valve 33 in the switching device 7 switches on the solenoid 34 at predetermined time intervals set and stored in the timer 60.
The opening/closing is controlled by the packet conveyor 26, and the grains transported by the packet conveyor 26 are alternately diffused and returned into the dryer 10 and the cooler 11, and the circulation is repeated in both of them, and during this circulation, the grains are The grains are controlled by this drying control device 58 so that they are ventilated and dried by outside air sucked in through the ventilation opening 37.

Temperature control by the temperature control device 59 is performed in the following manner, and the detected value detected by the temperature sensor 56 is input to the temperature control device 59, and set by operating each temperature setting knob 53. The set hot air temperature is input to this temperature control device 59, and the set hot air temperature and the detected hot air temperature are compared, and if they are different, the amount of fuel and the amount of combustion air supplied to the burner 14 are changed to this temperature. This configuration is controlled by a control device 59.

Note that FIGS. 5 and 6 are diagrams showing other embodiments, and as shown in FIGS.
is divided into three parts, with the A part communicating with the transfer gutter 24, the mouth part communicating with the cooling transfer gutter 32, and the bottom part communicating with the take-out conveyor 50 via the discharge vibro 1. , each rotatable switching valve 62 is provided in the 1st, 2nd, and 2nd portions, and each switching solenoid 63 for rotating each switching valve 62 is provided, and the operation of each switching solenoid 63 causes each switching valve 62 to rotate. 1 of the dispensing tube 27 by rotating the
It has a structure that allows grains to flow down to either the first mouth or the hem,
The operation of each switching solenoid 63 is inputted to the drying control device 58 of this operating device 12 by the operating position of a switching hole 64 provided on the surface plate of the operating device 12. It is also possible to adopt a controlled configuration so that the supply can be easily switched and supplied to any direction.

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

When drying the grains loaded into the drying tank 2 of the grain drying 1110, each setting 53.5 of the operating device 12 is used.
4 to a predetermined position and operates the start switch 51 to start drying work, each part of the dryer 10, the burner 14, the moisture sensor 30, etc. are started, and this burner 1
Hot air is generated from the hot air chamber 21, passes through each drying chamber 19, passes through each exhaust chamber 22, and is sucked and exhausted by the exhaust fan 15, thereby removing the grains stored in the drying tank 2. The grains are dried by being exposed to the hot air while flowing down from the drying tank 2 into the drying chamber 19, and are fed out to the lower part by the delivery valve 20 and flowed down to be supplied into the grain collecting trough 18. Gutter 18
The grains are transferred from the grains through the supply gutter 28 to the inside of the raising device l by the lower conveyor 4, are transported to the upper part by the packet conveyor 26, are fed into the transfer gutter 24 via the dispensing cylinder 27, and from this transfer gutter 24 to the spreading plate. 25 by the upper conveyor 5, and is evenly diffused and returned into the drying tank 2 by the diffusion plate 25, and is circulated and dried to achieve the finish set by the moisture sensor 3o by operating the moisture setting knob 54. When the grain moisture content equal to the target moisture content is detected, the drying control device 58 of the operating device 12 automatically controls the dryer 10 to stop the drying of the grains.

When this dried grain is left to cool, the Magurosaku device 12
By operating the start switch 51 that starts the discharge operation, parts other than the burner 14 of the dryer IO, the upper conveyor 6 of the cooling device 11, and the cooling diffusion plate 46 are rotated, and at the same time, the switching device The on-off valve 33 of No. 7 is controlled to be open by the solenoid 34, and the dried grains conveyed to the upper part by the packet conveyor 26 of the grain raising device 1 of the dryer 10 are transferred from the dispensing pipe 27 to the switching valve. It is supplied into the cooling transfer gutter 32 via the device 7, and is transferred from the cooling transfer gutter 32 onto the cooling diffusion plate 46 by the upper conveyor 6, and the cooling diffusion plate 46 cools the cooling device 11. It is evenly distributed and supplied into the tank 3, and when the supply is finished, these dryers 10 and cooling machines 1
1 is stopped, the dried grains are left to cool for a predetermined time set in the timer 60, and when the predetermined time has elapsed and the cooling ends.

The cooling machine 11 is started again, the cooling delivery valve 42 and the lower conveyor 9 are driven to rotate, and the cooling grains are delivered to the lower part by the cooling delivery valve 42 and flow down into the cooling collection gutter 40.
The conveyor 5 takes out the grain from the cooling collection gutter 40.
0 on this lower conveyor 9 and discharged, and then transferred and discharged by this take-out conveyor 50.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway overall side view of the grain drying device, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of the grain drying device. 1 is a sectional view taken along line BB in FIG. 1, FIG. 4 is a partially cutaway front view of a part of the grain dryer, and FIGS. 5 and 6 are front views of other embodiments. Explanation of symbols 1 Grain raising device 3 Cooling tank 5 Upper conveyor 7 Switching device 9 Lower conveyor drying tank Lower conveyor Upper conveyor outside the machine

Claims (1)

[Claims] A drying tank 2 for accommodating and drying grains is disposed on one side of a grain raising device 1 for transporting grains to the upper part, and a drying tank 2 for storing and drying grains is disposed on the other side.
A cooling tank 3 for accommodating dried grains and leaving them to cool is provided opposite to the drying tank 2, and a lower conveyor 4 for receiving the grains in the drying tank 2 and transferring them to the grain raising device 1. and a switching device 7 for receiving and conveying grains supplied from the grain raising device 1 to the upper conveyor 5 of the drying tank 2 and the upper conveyor 6 of the cooling tank 3. At the bottom of cooling tank 3,
This grain drying device is provided with a lower conveyor 9 that selectively conveys the air-cooled grains to the grain raising device 1 and outside the machine 8.