JPH0462386A - Drying process control method of grain dryer - Google Patents

Abstract

PURPOSE:To allow starting up a dryer by simply operating switches on an operating board for improving the operability and avoiding maloperation by a method wherein operations of a main dryer operating board are input from a main controller of the main dryer operating board to an ancillary controller of an ancillary dryer operating board. CONSTITUTION:For example, when grain placed in a grain dryer 12 is dried by means of double drying process, a drying mode setting switch 77 of a main dryer operation board 5 is turned toward double drying side, and a drying start-up switch 4 is turned on to start up drying process, so that a burner 6, a moisture sensor 32 and others are started up by a main controller 6 of the main dryer operating board 5 and an ancillary controller of an ancillary dryer operating board, and hot drying air is generated by the burner 26. The gain placed in a storage tank 21 is detected for the moisture content by the moisture sensor 32, and when the moisture sensor 32 detects a grain moisture content equal to the finish target moisture content, the dryer 12 is automatically stopped by automatic controls of the main controller 6 and the ancillary controller, and drying of grain is stopped.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a drying control method for a grain dryer.

(Prior art) Conventionally, when a function is added to a grain dryer, when the main drying device that starts and controls the conventional function is operated, this operation causes the main drying control device to start and control the conventional function. When the sub-drying device that starts and controls the added function is operated, the additional function is started and controlled by the sub-drying control device, and the conventional function and the added function are separate from the main drying device. It was a drying control system that was started and controlled by the operation of the sub-drying device.

(Problem to be Solved by the Invention) For example, if a cooling chamber is added above the grain storage chamber of a grain dryer to add a cooling function for cooling dried grains, this cooling chamber is added. Along with this, an auxiliary drying device with a built-in auxiliary drying control device is also added.

When drying grains in this grain dryer to which these cooling chambers and sub-drying devices have been added, drying can be done by operating both the main drying device and the sub-drying device. The machine is started and controlled by a main drying controller and a secondary drying controller, and dried grains are fed into the cooling chamber and left to cool in the cooling chamber.

When performing this cooling operation, the main drying device and the sub-drying device are not both operated, but only one of them can be operated, thereby improving operability and preventing erroneous operation. It is something.

(Means for Solving the Problems) The present invention comprises a grain loading operation device 1, a grain discharge operation device 2,
These stop operation devices 3. and a main drying control device 6 of the main drying device 5 having a drying operating device 4, a grain loading operating device 7, a discharging operating device 8, and a stopping operating device 9 thereof. Sub-drying device 1
The drying control system of the grain dryer is configured such that the grain dryer is provided with an auxiliary drying control device 11 of 0, and is operable via the auxiliary drying control device 11.

(Function of the invention) For example, in a grain dryer equipped with an auxiliary drying device 10 that has a cooling chamber for cooling dried grains and a built-in auxiliary drying control device 11, dried grains are When supplying to a cold room and performing a cooling operation, by operating the tensioning operation device 7 of the main drying device 5, this operation is transferred from the main drying control device 6 of the main drying device 5 to the sub-drying device 10. is input to the sub-drying control device 11, and this input causes the sub-drying control device 1 to
1 and the main drying control device 6 control the start-up of the dryer, and the dried grains are transferred and supplied into the cooling chamber, where they are left to cool.

(Effect of the invention) According to the present invention, when starting and stopping the grain dryer, each operating device 1, 2, 3, 4, 7, 8 of the main drying device 5 is used.
．． 9, this operation can be performed by operating the main drying device 5.
The input is input from the main drying control device 6 of the main drying device 10 to the sub-drying control device 11 of the sub-drying device 10, and this input starts the dryer, so that the starting operation only needs to be done in one place, and therefore the operation is simple. As a result, operability has improved, and errors in operation have been eliminated.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

Turning is carried out by using a plurality of machines that dry the grains, for example, four grain dryers 12, a grain storage tank 13 that stores the grains, a huller 14 that dehulls the grains, and a huller 14 that dehulls the grains. A tensioning device 15 for transporting grain to the grain storage tank 13, a discharging device 16 for discharging and transporting grain to the grain storage tank 13, these dryers 12, grain storage tank 13, huller 14, tensioning device 15, and This figure shows a facility grain conditioning and processing device 18 that includes a central operating device 17 that centrally operates the discharge device 16 and the like.

This dryer 12 consists of an upper cooling part and a lower drying part, and this cooling part has a cooling chamber 19 in the upper part, and an upper grain collection gutter 20°20 below the cooling chamber 19. A drying section is provided below the upper grain collection troughs 20, 20, and this drying section has two storage chambers at the top, and four grain drying chambers 22 are provided below the storage chamber 21. At the bottom of each drying chamber 22, each delivery valve 38 is provided which is rotationally driven by a valve motor 37, and at the bottom of each drying chamber 22, a lower grain collecting trough 23 is provided and communicated with each other.

An upper transfer gutter 24 is provided above the cooling chamber 19, and a lower transfer gutter 25 is provided between the upper grain collecting gutter 20, 20, and the upper and lower ridge feed gutter 24. Upper and lower diffuser plates are provided in the central portion of the drain, and a discharge switching valve 72 is opened and closed by a discharge switching valve motor 73 in the lower transfer gutter 25.

A burner 26 for generating drying hot air, a main drying device 5 and a sub-drying device 10 for starting, stopping, and controlling the dryer 12 are provided on the outer surface of the front side mold of the dryer 12. An exhaust fan 27 is provided on the outside surface of the mold, which is rotated by an exhaust fan motor 39, and a circulation elevator 28 is installed outside the rear of the mold to rotate an internal packet belt by an elevator motor 40. A dispensing pipe 29 is provided, and a switching valve 41 in the dispensing pipe 29 is switched by a switching valve motor 42. By switching the switching valve 41, one side of the dispensing pipe 29 and the starting end of the upper transfer gutter 24 are connected. The other side of the dispensing tube 29 and the starting end of the lower transfer gutter 25 are in communication with each other via a downstream tube 30.
Reference numeral 3 denotes a switching valve sensor for detecting the operating position of the switching valve 41, and a supply gutter 31 is provided between the lower end and the terminal end of the lower grain collection gutter 23 to communicate with the circulating elevator 28. includes a moisture sensor 32 for detecting grain moisture.
The configuration includes the following.

In the upper part of the cooling chamber 19, there is a fullness sensor 33 for detecting the full state of grains in the cooling chamber 19, and in the lower part of the upper grain collection trough 2o, there is a sensor 33 in the upper grain collection trough 20. The structure includes a paddy presence/absence sensor 34 34 for detecting the presence or absence of grains. Further, in the upper part of the storage chamber 21, there is a storage chamber full sensor 35 that detects the full state of grains in the storage chamber 21, and in the lower part, there is a sensor 36 in the storage chamber 21 that detects the presence or absence of grains.
36°.

The dryer 12 transports the grains in the cooling room 19 from the cooling room 19 to the upper grain collecting troughs 20, 20 and the storage room 21.
The circulation of the grain flowing down through each of the drying chambers 22 and being diffused and supplied into the cooling chamber 19 from the lower grain collection gutter 23 via the circulation elevator 28, the discharging tube 29, and the upper transfer gutter 24 is repeated. double drying, and the storage chamber 2
1 flows down from the storage chamber 21 through each drying chamber 22 and from the lower grain collection gutter 23 through the circulation elevator 28, the dispensing tube 29, the flow tube 30, and the lower transfer gutter 25. The configuration is such that either single drying, in which the air is not allowed to pass through the cooling room 19, where the air is diffused and supplied into the storage chamber 21 and dried is repeated, or single drying is performed.

Each of the upper grain collecting spirals in the upper grain collecting troughs 20, 20 is configured to be rotationally driven by an upper grain collecting trough motor 43', and a bottom hole 44 which can be opened and closed is provided at the bottom of the upper grain collecting troughs 20, 20. .4
4, and this bottom plate 44 is connected to a bottom plate opening/closing motor 45,
45 is a structure that opens and closes, 46 is a bottom gap sensor that detects the open state of this bottom plate 44, and 47 is a bottom opening sensor that detects the open state of this bottom plate 44.
The upper transfer spiral in the upper transfer gutter 24 is a bottom plate closed sensor that detects the closed state of the elevator motor 4o.
The lower transfer spiral in the lower transfer gutter 25 is rotationally driven by a lower transfer gutter motor 48 , and the lower grain collecting spiral in the lower grain collecting gutter 23 is rotated by the elevator motor 40 . The device is configured to be rotationally driven via the packet belt.

The grain storage tank 13 has storage chambers 49.49 on both left and right sides for storing grains, and a paddy shutter 50.5 at the bottom of the storage chambers 49.49 for switching between storing and discharging grains.
This paddy shutter 50.50 is configured to be rotated by a paddy shutter motor 51. Full sensors 52, 52 are provided to detect the full state of the
Further, in the lower part, there are provided paddy presence/absence sensors 53, 53 for detecting the presence or absence of grains in the storage chambers 49, 49.

The hulling device 14 is provided below the storage chamber 49.49 of the grain storage tank 13, and is supplied with grains discharged from the storage chamber 49.49. The structure is such that the grain is dehulled, sorted, and discharged outside the machine.

On the rear side of each of the dryers 12, there are provided a stake hopper 54, a stake elevator 55, and a stake conveyor 56 of the stake device 15 for loading grain into each dryer 12. The grains introduced into the stake conveyor 56 are transported to the upper part by the stake elevator 55 and are supplied into the stake conveyor 56 via the dispensing tube 57 and the upstream upper tube 58.
While being transferred, when the tension switching valve 59 provided individually at the bottom of the tension conveyor 56 is opened, the flow is supplied into the circulation elevator 28 via the downstream lower part 60, and the upper part of each of the dryers 12 is supplied. It is individually supplied into the transfer gutter 24 or each of the lower transfer gutter 25, and is individually transferred by each of the upper transfer gutter 24 or each of the lower transfer gutter 25 to the cooling chamber 19 of each dryer 12. The tension switching valve 59 is configured to be opened and closed by a tension switching valve motor 64, and 76 controls the opening and closing of the tension switching valve 59. This is the tensioning switching valve sensor that detects.

The discharging cylinder 57 is provided with a paddy flow sensor 61 that detects grains passing through the dispensing cylinder 57, 62 is a tensioning elevator motor that rotationally drives the tensioning elevator 55, and 63 is a This is a tensioning conveyor motor that rotationally drives the tensioning conveyor 56.

On the rear side of each dryer 12, there are a discharge conveyor 65, a discharge hopper 66, and a discharge device of the discharge device 16 for receiving the cooled grains transferred and discharged from the upper grain collection@20, 20 of each dryer 12. An elevator 67 is provided, and the upper grain collecting trough 2
The grains individually discharged from 0.20 to the discharge conveyor 65 are transferred by the discharge conveyor 65, supplied from the discharge hopper 66 into the discharge elevator 67, and are conveyed to the upper part by the discharge elevator 67. The grains are individually discharged and supplied into the storage chambers 49 and 49 of the grain storage tank 13 through the discharging cylinder 68 and left and right flow down cylinders 69 and 70.

A paddy flow sensor 71 for detecting grains passing through the dispensing tube 68 is provided inside the dispensing tube 68.
8 is rotatably provided with a discharge switching valve 72 for switching grains to the left and right flow down cylinders 69, 70, and this discharge switching valve 72 is configured to be rotated by a discharge switching valve motor 73. A discharge conveyor motor rotates the discharge conveyor 65, and 75 designates a discharge elevator motor that rotationally drives the discharge elevator 67.

The main drying device 5 directly starts, stops, and controls a part of the drying section of the dryer 12 for each operation of loading, drying, and discharging, and the cooling section for each operation of loading and discharging. It is configured to directly start, stop, and control.

The sub-drying device 10 performs the operations of loading, drying, discharging, and stopping the main drying device 5, and performs the operations of loading, drying, discharging, and stopping a part of the drying section of the dryer 12 through the sub-drying device 10. The system is configured to start, stop, and control each discharge operation separately.

The main drying device 5 has a box shape, and the surface plate of the box has the following features:
A loading operation device 1, a discharge operation device 2, and a drying operation device 4 that start and operate a part of the drying section of the dryer 12 for each operation, a stop operation device 3 that performs a stop operation, and the cooling of the dryer 12. A loading operating device 7 and a discharging operating device 8 are provided for starting the section for each operation, a stopping operating device 9 for stopping the section, and a drying setting device 77 for setting double drying or single drying. Reference numeral 78 is an operation display monitor, which is configured to display the operation points of the operating devices 1, 2, 3, 4, 7, 8.9 by lighting, and 79 is a display monitor, which indicates the operation of the drying setting device 77. 80 is an abnormality display monitor, which includes the switching valve 41, the bottom removal 44, the tensioning switching valve 59, and the upper grain collecting trough. The structure is such that when an abnormality occurs in the motor 43', the lower transfer gutter motor 48, etc., it is indicated by lighting. Further, each manual operation device 81 for manual operation is provided on the bottom plate, and by operating each manual operation device 81, the switching valve motor 42. The upper grain collection gutter motor 43'
, the bottom plate opening/closing motor 45° 45, the lower transfer gutter motor 48, and the tensioning switching valve motor 64 are rotated.

The main drying device 5 is provided with a built-in main drying control device 6 consisting of a microcomputer. Indoor paddy presence sensor 36, 36, said switching valve sensor 43° 43, said bottom plate sensor 46, 46
, the detection of the bottom plate close sensor 47, 47 and the tension switching valve sensor 76, 76 is inputted, and each part is controlled as necessary based on this input, and this main drying control device 6 to said operating device 1, 2° 3.4,
When the operations 7, 8, and 9 are input, the switching valve motor 42, the upper grain collection gutter motor 43', the bottom plate opening/closing motors 45, 45,
The lower transfer motor 48 and the tension switching valve motor 64
The configuration is such that the start and stop are controlled.

The sub-drying device 1o has a box shape, and a display board of the box is provided with a digital display section 82 that digitally displays detected grain moisture, detected drying hot air temperature, remaining drying time, etc.

Further, the sub-drying device 10 is provided with a built-in sub-drying control device 11 consisting of a microcomputer, and the horizontal ratio of the full quantity sensor 33 is input to this sub-drying control device 11. The configuration is such that each part is controlled as necessary by the operating devices 1, 2, 3, 4, and 7.
, 8.9 is input to the main drying control device 6, this input is input to the auxiliary drying control device 11 via the main drying control device 6. The valve motor 37. the exhaust fan motor 39;
The elevator motor 40 and the discharge switching valve motor 7
3 is configured to be started and stopped controlled.

Various data from the auxiliary drying device 10 and the main drying device 5 are input to the central operating device 17, and the central operating device 17 is configured to control the facility grain conditioning and processing device 18. It is said that

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

When drying the grains accommodated in the grain dryer 12 by, for example, double drying, the drying operation device operates the drying setting device 77 of the main drying device 5 to the double drying side and starts the drying operation. 4, the main drying control device 6 of the main drying device 5 and the sub-drying control device 11 of the sub-drying device 10 control the parts necessary for the drying operation of the dryer 12, the burner 26 and the moisture sensor 32. etc. are started, and dry hot air is generated from this burner 26.

This dry hot air passes through each grain drying room 22 and is passed through the exhaust fan 27.
By suctioning and exhausting the air, the grains stored in the storage chamber 21 are exposed to this drying hot air while flowing down from the storage chamber 21 into each of the drying chambers 22, and are dried. The grains are fed out by the valve 38 and flowed down to be supplied into the lower grain collection gutter 23 , from this lower grain collection gutter 23 through the supply gutter 31 and fed into the circulation elevator 28 .
8, it is transported to the upper part through the dispensing tube 29 and then to the upper transfer gutter 24.
The grains are supplied to the inside of the room, transferred to the upper diffusion plate by this upper transfer gutter 24, and uniformly diffused and returned to the cooling chamber 19 by this upper diffusion plate. The circulation of grains supplied into the storage chamber 21 through the gutter 20 is repeated for circulation drying, and when the moisture sensor 32 detects the same grain moisture as the finishing target moisture, the main drying control device 6 and the sub-drying control The dryer 12 is automatically controlled by the device 11 to automatically stop the drying of the grains.

When the dried grains are supplied into the cooling chamber 19 and left to cool, the main drying control device of the main drying device 5 is operated by operating the tensioning operation device 7 of the main drying device 5. 6 and the sub-drying control device 11 of the sub-drying device 1o, the parts of the dryer 12 necessary for the cooling filling operation are started.

The dried grains in the storage chamber 21 are fed out from the storage chamber 21 into each of the drying chambers 22 by the respective feeding valves 38, flow down, and are supplied into the lower grain collecting trough 23, and are fed into the lower grain collection gutter 23. Grain collection gutter 23 is transferred and supplied into the circulation elevator 28 through the supply gutter 31, transported to the upper part by this circulation elevator 28, passed through the dispensing cylinder 29, and transferred to the upper part @2.
4, and is transferred and supplied by this upper transfer gutter 24 onto the upper spreading plate, where the bottom plates 44, 44 are in a closed state, and the upper grain collecting gutter 20, 20 and the cooling room. 1
It is evenly diffused and supplied into the cooling chamber 19 and left to cool.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a block diagram of the main drying device, Figs. 2 and 3 are flow charts, Fig. 4 is an operation mode diagram, and Fig. '5 is a grain drying device. A system diagram of the grain adjustment processing device, FIG. 6 is a configuration diagram of the main drying device, sub-drying device, and central operating device, FIG. 7 is an overall side view of the grain dryer, and FIG. 8 is A- in FIG. A sectional view, FIG. 9 is a rear view of a portion of the grain dryer, and FIG. 10 is an enlarged rear view of a portion of the grain dryer. In the figure, numerals 1 and 7 are tensioning operation devices, 2 and 8 are discharge operation devices, 3 and 9 are stop operation devices, 4 is a drying operation device, 5 is a main drying device, and 6 is a main drying control device. , 10 is a sub-drying device, and 11 is a sub-drying control device.

Claims (1)

[Claims] A main drying device 5 having a grain loading operating device 1, a discharging operating device 2, a stop operating device 3 for these, and a drying operating device 4
a main drying control device 6, a sub-drying control device 11 of a sub-drying device 10 for drying in the main drying device 5, which has a grain tensioning device 7, a grain discharging device 8, and a stop device 9 for these devices; A drying control system for a grain dryer, which is provided with a auxiliary drying control device 11 and is operable via the sub-drying control device 11.