JPH06101968A - Method for stopping operation of grain dryer and the like - Google Patents

Abstract

PURPOSE:To stop the operation of a grain dryer in distinction an emergency stopping from a normal stopping. CONSTITUTION:On the lower side of a display device 33 of an operation manipulation device 15, there is installed each of manipulation devices 34a, 34b, 34c and 34d which are designed to select and set multifunction of a grain dryer 1 by their manipulation while there is installed a stop device 35 which suspends their operations. When emergency stop is called for, the stop device 35 is operated while routine suspension is required, the operation is halted by manipulating the manipulation device 34d marked with 'stop dry' under the displayer device 33. When routine suspension is carried out, a fan and an exhauster are suspended after a specified time has lapsed under control. This construction makes it possible to put the dryer to either an emergency stop and a routine stop, thereby making sure the extinction of a hot air device and allowing this hot air device to be suspended after it is cooled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for shutting down a grain dryer or the like.

[0002]

2. Description of the Related Art Conventionally, when a grain dryer is started to start drying of grains, a lower operating device, which is displayed as “dry” on a display device of a drive operating device, is operated to The dryer is started, and the grains stored in the grain storage chamber are fed out from the storage chamber and circulated while flowing down, while the hot air generated from the hot air device passes through the drying chamber. As a result, the circulating grains are exposed to this hot air and dried.

When the dryer is stopped during the drying operation, an operation stop system is used in which the stop device of the operation control device is operated to stop the dryer.

[0004]

When starting the drying of the grain by starting the grain dryer, by operating the lower operation device displayed as dry on the display device of the driving operation device, This dryer is started, the grains stored in the grain storage chamber, the hot air generated from the hot air device while being circulated by being drawn out from the storage chamber in the grain drying chamber,
By being sucked and discharged by the blower, the grains that have passed through the drying chamber and are being circulated are dried by being exposed to the hot air.

When the dryer is stopped during the drying operation, the dryer is stopped by operating the stop device of the driving and operating device. However, the method for stopping the dryer is normally stopped. When the normal stop is performed, the supply of the combustion fuel to the hot air device is immediately stopped and the combustion is stopped, but the hot air device is commensurate with the combustion fuel amount. By stopping the output to the blower motor that rotationally drives the blower that blows the amount of combustion air and the exhaust motor that rotationally drives the exhaust fan after a predetermined time, by stopping the blower and the exhaust fan after a predetermined time, It is intended to completely extinguish the hot air apparatus and to cool the hot air apparatus within this predetermined time.

[0006]

According to the present invention, the hot air generated from the hot air device 4 is supplied to the drying chamber 9 while the grains are being fed from the upper grain storage chamber 8 to the lower grain drying chamber 9 and flowing down. The display device 33 is provided to ventilate the air so that the exhaust device 16 sucks and exhausts the air, and a display device 33 for displaying various items is provided on the surface of the operation device 15. The operation operating device 15 provided with individual operating devices 34a, 34b, 34c, 34d to display the setting function of the operating devices 34a, 34b, 34c, 34d on the display device 33, and to provide a stop device 35 for stopping. In a grain dryer or the like having the above, when the dryer is to be emergency stopped during the drying operation, it is stopped by operating the stop device 35, and when the dryer is normally stopped, the display device 33 is dried. The operation corresponding to the stop display The output to the blower motor 19 that rotationally drives the blower 16 and the blower motor 24 that rotationally drives the blower 23 that blows the combustion air to the hot air device 4 is stopped after a predetermined time by being operated by the operation of the device 34d. Then, the exhaust fan 16 and the blower 23 are delayed for a predetermined time to perform stop control.

[0007]

When the grain dryer is started to start the drying of the grain, by operating the lower operating device 34b indicated as dry on the display device 33 of the operation operating device 15, While the dryer is started, the grains stored in the grain storage chamber 8 are fed out from the storage chamber 8 into the grain drying chamber 9 and are circulated while flowing down, while the hot air generated from the hot air device 4 is By passing through the drying chamber 9 and being sucked and discharged by the blower 16, it is exposed to the hot air and dried. During the drying operation, the display on the display device 33 is such that the display on the upper side of the operation device 34b is displayed as setting confirmation and the display on the upper side of the operation device 34d is displayed as drying stop.

When an emergency occurs during the drying operation and the dryer is to be stopped urgently, the stop device 35 of the operation stop device 15 is operated to stop and control all parts of the dryer. Then, the drying of the grain is stopped. Further, during the drying operation, when the dryer is normally stopped, the hot air is operated by operating the lower operation device 34d, which is displayed on the display device 33 of the operation operation device 15 as "drying stopped". The combustion fuel supplied to the device 4 is controlled to stop immediately,
Further, the rotational drive of each part of the dryer other than the blower 23 that blows the combustion air and the blower 16 that sucks and discharges the hot air is immediately stopped, and the blower motor 24 and the blower 16 that rotationally drive the blower 23 are controlled. Fan motor 1 for rotating
The output to 9 is stopped and controlled after a predetermined time, the blower 23 and the exhaust fan 16 are stopped and controlled after a predetermined time, and all the parts of the dryer are stop-controlled to stop the drying of the grain.

[0009]

EFFECTS OF THE INVENTION According to the present invention, by stopping the grain dryer by dividing it into an emergency stop and a normal stop, the hot air device 4 is controlled to stop the immediate combustion at the predetermined time during the normal stop. After that, the blower 23 and the exhaust fan 16 are stopped and controlled, the fire of the hot air device 4 is surely extinguished, and the hot air device 4 can be surely cooled in the predetermined time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The illustrated example is a circulation type grain dryer 1 for drying grains.
It shows a state in which a hot air device 4 including a moisture sensor 2 for detecting the moisture of the grain and a burner 3 for generating hot air is attached.

The dryer 1 has a rectangular shape which is long in the front-rear direction and has a transfer gutter 6 and a ceiling plate 7 in which a transfer spiral is rotatably installed in the upper part of the machine wall 5, and below the ceiling plate 7 is a grain. A grain storage chamber 8 for storing grains is formed, and a plurality of swelling amount sensors 8'are provided in the storage chamber 8 in the vertical direction. The grain drying chambers 9, 9 are provided below the storage chamber 8 between the left and right air exhaust chambers 10, 10 and the central air blowing chamber 11, and the lower portions of the drying chambers 9, 9 include the grain drying chambers 9, 9. Each of the feeding valves 12 for feeding and flowing down is rotatably supported.

In the grain collecting trough 13, a transfer spiral is rotatably supported and provided below the respective drying chambers 9, 9 so as to communicate with each other. The burner 3 of the hot air device 4 is installed inside a burner case 14, and the burner case 14 is provided on the outer surface of the machine wall 5 so as to correspond to the inlet side of the blower chamber 11 on the front side of the machine wall 5. The burner 3, the moisture sensor 2 and the dryer 1 are detachably provided, and a driving operation device 15 for starting and stopping the burner 3, the moisture sensor 2 and the dryer 1 for each work of loading, drying and discharging is detachably mounted on the machine wall 5 on the front side. It is provided.

The exhaust fan 16 is provided on the rear-side machine wall 5 and is provided on a central rear-side exhaust cylinder 18 of the exhaust passage chamber 17 provided to communicate with the left and right exhaust chambers 10, 10. On the side machine wall 5, a fan motor 1 for rotating and driving the fan 16 is provided.
9 is provided. The valve motor 20 rotationally drives the delivery valves 12 and 12 via a speed reduction mechanism.

The fuel pump 21 has a fuel valve,
The fuel pump 21 is provided outside the lower plate of the burner case 14, and the fuel in the fuel tank 22 is sucked by the fuel pump 21 to be supplied to the burner 3. The blower 23 is provided on the outer side of the upper plate, and is used to change the blower motor 2
4, the combustion air corresponding to the supplied fuel amount is blown to the burner 3 by the blower 23.

The diffusion board 25 is provided at the central portion of the bottom plate of the transfer gutter 6 in the front-rear direction and below the supply port for supplying the transfer grains to the storage chamber 8, and evenly spreads the grains to the storage chamber 8. I'm giving back. The grain-raising machine 26 is provided outside the front side of the front side machine wall 5 and has a belt with a bucket conveyor 27 stretched inside, and the upper end portion is a throw-out pipe 28 between the transfer gutter 6 and the starting end portion. Is provided for communication, and a paddy flow sensor 29 for detecting the grains passing therethrough is provided in the throwing-out cylinder 28, and a lower end portion thereof is provided with a supply gutter 30 between the terminal end portion of the grain collecting gutter 13 for communication. I am letting you.

The grain elevator motor 31 rotatably drives the belt with the bucket conveyor 27, the transfer spiral in the transfer gutter 6, the diffusion plate 25, the transfer spiral in the grain collecting gutter 13, and the like. The moisture sensor 2 is the grain elevator 26.
The moisture sensor 2 is provided substantially at the center in the vertical direction of the bucket, and the moisture motor 32 is rotated by the transmission of an electrical measurement signal from the driving and operating device 15 to rotationally drive each portion of the moisture sensor 2 to move the bucket. The conveyor 27 receives the grains that are falling during the upper conveyance, and while crushing the grains with pressure, the water content of the crushed grains is detected.

The operation and control device 15 has a box shape, and a display device 33 such as a liquid crystal display for displaying various items is provided on the surface plate of the box body. Below the display device 33, the dryer 1 is provided. A plurality of operating devices 34a, 34b, 34c, 34d for selecting and setting multi-functions by operation are provided, and the function of each operating device 34a, 34b, 34c, 34d is displayed on the lower part of the display device 33. In addition, it has a configuration in which a stop device 35 for stopping the dryer 1 is provided.
The operating devices 34a, 34b, 34c, 34d and the stopping device 35 are of a push button type ON-OFF switch system.

The control device 36 is provided in the driving operation device 15, and inputs the paddy flow sensor 29, various digital sensor information and each operation device 34a, 34b, 34.
c, 34d, a digital input circuit (A) 37 for inputting the operation of the stop device 35, an input of various analog sensor information, and an analog input circuit for inputting detection values detected by the moisture sensor 2 and the hot air temperature sensor 38. 39, A-D conversion circuit 40, serial data transmission circuit 41, memory clear 4
A digital input circuit (B) 43 to which 2 is input is provided. A dryer control microcomputer 44 and a memory 45 that perform arithmetic logic operations and comparison operations on the inputs from these circuits 37, 39, 40, 41 and 43, and an output circuit (A) 46 by a command from the dryer control microcomputer 44. The exhaust motor 19 is controlled to start and stop through the output circuit (B) 4
7 through the valve motor 20 and the grain elevator motor 3
1 is started and stopped, and the fuel valve and the fuel pump 21 are started, stopped and adjusted through an output circuit (C) 48, and the blower motor 24 is started, stopped and operated through an output circuit (D) 49. Adjust and control the output circuit (E) 5
The moisture motor 32 is controlled to start and stop through 0, various items are displayed on the display device 33 through the display circuit 51, the serial data receiving circuit 52 and the non-volatile memory 53.
And so on.

The stop control of the dryer 1 by the controller 36 is performed as follows. That is, during the drying operation,
When the drying is stopped, the operating device 34d on the lower side, which is displayed as the drying stop of the display device 33 of the operation operating device 15 as shown in FIG. 2, is turned on, and it is detected whether or not it is turned on by this operation ( Step 101), if NO is detected, the process returns to Step 101, and if YES is detected, the fuel valve and the fuel pump 21 of the combustion system are OF
F (step 102), and the exhaust fan motor 19
And the motors 20 and 3 other than the blower motor 24
1, 32, etc. are turned off (step 103), and it is detected whether or not a predetermined time set and stored in the dryer control microcomputer 44 has elapsed (step 104). If NO is detected, the process returns to step 104 and YES. When it is detected that the output of the blower motor 24 is turned off (step 10
5) Further, the output of the blower motor 19 is turned off (step 106), and thereby all the respective parts of the dryer 1 are stop-controlled, and the drying of the grain is stopped.

Before the start of each work of loading, drying, and discharging and after the end of each work, the function display on the display device 33 of the liquid crystal type of the operation control device 15 is displayed by liquid crystal as shown in FIG. When the grain type and the drying mode are set, the function display on the display device 33 of the operation control device 15 is displayed as shown in FIG.

Further, the function display on the screen stopped during the drying operation work may be displayed as shown in FIGS. 6 and 7.
6 is displayed on the display device 33 of the operation control device 15 (step 201), and the drying operation is started by operating the operation device 34b to start the dryer 1 (step 202). ), The setting confirmation screen of the function display on the display device 33 of the operation control device 15 is displayed as shown in FIG. 7 (step 203), and the continuation of drying and the operation device 34b on the lower side of the display are operated. Returning to step 203 (step 204), when the operating device 34d below the return and display is operated, the process returns to step 201 (step 204), and the operating device 3 below the start of drying and display.
4a is operated (step 204), the outputs of the motors 19, 20, 24, 31, 32 are turned on (step 205), and the fuel valve and the fuel pump 21 are turned on.
2 is turned on (step 206), the function display on the screen during drying is displayed on the display device 33 as shown in FIG. 2 (step 207), and the drying stop and the operation device 34d below the display are operated. Then, the dryer 1 is stopped (step 209). When the operating device 34b below the setting confirmation is operated (step 20)
8), the setting confirmation screen of the function display on the display device 33 is
The display is the same as that in FIG. 7 (step 210), and when the operation devices 34a and 34d on the lower side of the display for starting and returning drying are operated, the process returns to step 210 (step 2).
11) In addition, when the operating device 34b below the display of continuation of drying is operated, the process returns to step 207 (step 211).

11 to 14 are views showing another embodiment, and FIG. 13 is a view showing a driving and operating device 54. The driving and operating device 54 is box-shaped and is not mounted on the surface plate of the box body. , The dryer 1, the moisture sensor 2, the burner 3 and the like are put in, and each start switch 55 for starting operation for each work of drying and discharging, the stop switch 56 for stopping operation, and the finishing target moisture of the grain are set. Moisture setting switch 57, each display lamp 58 for each water content, grain type setting switch 59 for setting the temperature of hot air generated from the burner 3, each display lamp 60 for each type, stake amount setting switch 61, each stone number Display lamp 62, moisture correction switch 63, timer increase / decrease switches 64 and 65, buzzer stop switch 66, display section 67 for digitally displaying various display items, and monitor display lamp 68.
Are provided so that the above various items can be set at the lighting positions of the display lamps 58, 60 and 62.

The control device 69 is provided in the operation control device 54, and detects the paddy flow sensor 29, digital sensor information, input of a check mode 66 ', and the switches 55, 56, 57, 59, 61 ,. 63, 64, 65,
A digital input circuit (A) 70 to which the operation of 66 is input,
An analog input circuit 71, an A / D conversion circuit 72, a serial data transmission circuit 73, and a memory clear 74 are input to which analog sensor information is input and the detection values detected by the moisture sensor 2 and the hot air temperature sensor 38 are input. Digital input circuit (B) 75, each of these circuits 70, 71, 72,
A dryer control microcomputer 76 and a memory 77 that perform arithmetic logic operation and comparison operation on the inputs from 73 and 75, and an output circuit (A) 7 according to an instruction from the dryer control microcomputer 76.
8, the motors 19, 20, 31 and the like are controlled to start and stop, and the output valve (B) 79 is used to control the fuel valve,
The fuel pump 21, the blower motor 24, etc. are controlled to start and stop, the moisture motor 32 is controlled to start and stop via the output circuit (C) 80, and the data is displayed on the display unit 67 via the display circuit 81 and output. The buzzer 83 is operated and controlled via the circuit (D) 82, and is constituted by a serial data receiving circuit 84, a non-volatile memory 85 and the like.

Each of the motors 19, 20, 31 having a large current value is provided with a current transformer 86 for detecting the current value, and the current value detected by each of the current transformers 86 is increased. Is configured to be input from the rectification / smoothing circuit 87 of the current detection circuit 86 'to the dryer control microcomputer 76 through the amplifier circuit 88, the analog input circuit 71, and the AD conversion circuit 72.
The current transformers 86 for detecting the current value may be provided to the motors 24, 32 having a small current value, respectively.

The check of the operation control device 54 is performed as follows. That is, the check mode 66 'input is read (step 301), it is detected whether there is an input (step 302), and if YES is detected, the open phase detection processing of each motor 19, 20, 31 is deleted. Then, the system waits for the input of each of the starting switches 55 (step 303), and the input is waited for (step 304). When NO is detected in step 302, the process proceeds to step 304.

As a result, when the operation control device 54 is checked, the motors 19, 20, 3 are actually operated in the normal operation mode including the process of detecting an open phase.
If 1 is connected or a current is not applied to the current transformer 86 with a pseudo load, the operation could not be performed due to the open phase error, but the check mode 66 'was provided. If it is a check other than the phase relation, it is possible to perform an operation check without the motors 19, 20, 31 and pseudo loads, and when the current cannot be detected due to a failure of the current transformer 86 or the like. Check mode 66 'for emergency operation
It became possible to drive in.

The operation of the above embodiment will be described below. Multi-functional settings such as finishing target moisture, grain type, and drying mode displayed on the display device 33 of the operating device 15 are selected and set by operating the operating devices 34a, 34b, 34c, 34d, etc., and displayed. By operating the operation device 34b on the lower side, which is indicated as dry by the device 33, each part of the grain dryer 1, the burner 3 of the hot air device 4, the moisture sensor 2
Etc. are started, the set hot air is generated from the burner 3, and the hot air passes from the air blowing chamber 11 to the grain drying chambers 9 and 9 to the air exhaust chambers 10 and 10 and the air exhaust passage chamber 17. After that, the blower 16
It is sucked and exhausted by.

The grains stored in the grain storage chamber 8 are dried by being exposed to the hot air while flowing down from the storage chamber 8 into the drying chambers 9 and 9, and then fed by the feeding valves 12 and 12. It is delivered to the lower part and flows down, and is fed from the grain collecting gutter 13 through the supply gutter 30 and into the grain raising machine 26 by the lower transfer spiral, and is conveyed to the upper part by the bucket conveyor 27 and transferred through the throwing pipe 28. It is supplied into the gutter 6 and is transferred and supplied from the transfer gutter 6 onto the diffusion plate 25 by an upper transfer spiral, and is uniformly diffused and reduced into the storage chamber 8 by the diffusion plate 25 and circulated and dried.

When the grain moisture detected by the moisture sensor 2 is the same as the finish target moisture set, it is detected that the drying is completed, and the controller 36 automatically controls the drying. The machine 1 is automatically stopped and the drying of the grain is stopped. When an emergency occurs during this drying operation and the dryer 1 is to be stopped urgently, the operation device 1
By operating the stop device 35 of No. 5, the dryer 1
All the parts are controlled to be stopped, and the drying of the grain is stopped. Further, during the drying operation, when the dryer 1 is normally stopped, the burner is operated by operating the lower operation device 34d, which is displayed on the display device 33 of the operation operating device 15 as "drying stopped". Immediate stop control of the combustion fuel to be supplied to No. 3 is performed, and the rotation drive of each part of the dryer 1 other than the blower 23 that blows the combustion air and the exhaust fan 16 that sucks and exhausts the hot air is immediately stop controlled. Outputs to the blower motor 24 that rotationally drives the blower 23 and the blower motor 19 that rotationally drives the blower 16 are stopped and controlled after a predetermined time, and the blower 23 and the blower 16 are stopped and controlled after a predetermined time. All the parts of the dryer 1 are stop-controlled to stop the drying of the grain.

[Brief description of drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 Block diagram

FIG. 2 is an enlarged front view of the operation control device, in which a part thereof can be broken.

FIG. 3 is an enlarged front view in which a part of the operation device is broken.

FIG. 4 is an enlarged front view of a partially-breakable operation control device.

FIG. 5: Flow chart

FIG. 6 is a front view showing an enlarged action of the driving control device, which is partially rupturable.

FIG. 7 is a front view showing an enlarged action of the driving device, which is partially rupturable.

FIG. 8 is a flowchart

[Fig. 9] Side view of the grain dryer, which is partially broken

10 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 11 is a block diagram showing another embodiment.

FIG. 12 is a diagram showing another embodiment, which is a current detection block diagram.

FIG. 13 is a view showing another embodiment, and is an enlarged front view in which the driving operation device is partially broken.

FIG. 14 is a diagram showing another embodiment, and is a flowchart.

[Explanation of symbols]

 4 Hot Air Device 6 Grain Storage Room 9 Grain Drying Room 15 Operation Control Device 16 Exhaust Air Fan 19 Exhaust Air Motor Motor 23 Blower 24 Blower Motor 33 Display Device 34a Operation Device 34b Operation Device 34c Operation Device 34d Operation Device 35 Stop Device

Claims (1)

[Claims] 1. The hot air generated from the hot air device 4 is passed through the drying chamber 9 and sucked by the exhaust fan 16 while the grains are being fed from the upper grain storage chamber 8 to the lower grain drying chamber 9 and flowing down. A display device 33 for displaying various items is provided on the surface of the operation device 15 for exhausting air, and a plurality of operation devices 34a, 34 capable of setting multiple functions are provided below the display device 33.
b, 34c, 34d are provided to operate the operating devices 34a, 34
b, 34c, 34d display the setting function on the display device 33, in a grain dryer or the like having the operation operating device 15 provided with a stop device 35 for stopping, emergency stop of the dryer during the drying operation. When the dryer is stopped, it is stopped by operating the stop device 35, and when the dryer is normally stopped, the operating device 34 corresponding to the dry stop display on the display device 33 is displayed.
The output to the fan motor 19 that rotationally drives the fan 16 performed by the operation of d and the fan motor 24 that rotationally drives the fan 23 that blows combustion air to the hot air device 4 is stopped after a predetermined time. The blower 16 and the blower 2
3. An operation stop method characterized by delaying No. 3 for a predetermined time to perform stop control.