JPH05196354A - Charged grain amount detector for grain drier - Google Patents

Abstract

PURPOSE:To detect correctively grain amount charged into a grain reservoir. CONSTITUTION:A plurality of charged grain amount sensors 4 provided in a grain reservoir 1 detect charged grain amounts. On the other hand, a grain flow rate sensor 5 detects passing time. Based on the detections, the charged grain amount at the upper level detected by the charged grain amount sensor 4 on the uppermost step is calculated and all the amounts are added to give a total charged grain amount. Accordingly, the charged grain amount between the charged grain amount sensors 4 is substantially calculated from the passing time detected by the again flow rate sensor 5. Thus a simple and correct detection of the stored grain amount can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting the amount of grain covered by a grain dryer.

[0002]

2. Description of the Related Art Conventionally, hot air is exposed to and dried by passing hot air through the drying chamber while letting it flow out from the grain storage chamber to the grain drying chamber. The detection of the amount of grain infused into the room is detected by a plurality of amount sensors vertically arranged at a predetermined interval on the inner surface of the machine wall forming the storage chamber. The detection method is such that when the sensor is stretched between the sensors, it is detected that the grain is stretched to the lower sensor for the amount of thrust.

[0003]

The grains stored in the grain storage chamber of the grain dryer are fed from the storage chamber through the grain drying chamber while hot air passes through the drying chamber. When exposed to the hot air and dried and the grain reaches the finishing target moisture, the dryer is stopped and the drying of the grain is stopped.

For example, if this drying operation is a model in which 20 stones can be loaded and dried, grain loading is started and
Depending on the stake grain, each stake amount sensor installed at the position of 6 stones of the lowest stake, 8 stones, 12 stones, 16 stones of the middle and 20 stones of the maximum stake in the storage chamber wall When turned on, it is detected that the grain has been squeezed to the maximum stake amount position and the stake is stopped, and it is detected that 20 stones have been sunk in the grain,
The hot air temperature and the like are set according to the amount of the 20 grains of the swelling grain, and the grain is dried. When the stake amount sensor at the 16 stone position is turned on and the stake amount sensor at the 20 stone position is not turned on,
The amount of grains loaded is detected to be 16 stones. Again 16
When the grain is staken up to an intermediate position between the stone position and the 20 stake position and the stake amount sensor at the 20 stake position is not turned on, it is detected that the amount of the sewn grain is 16 stakes. ..

[0005] Since the amount of spilled grains becomes one of the setting conditions for setting the temperature of hot air, it is intended to detect the amount of spilled grains accurately with a simple structure.

[0006]

According to the present invention, grains are fed from an upper grain storage chamber 1 to a lower grain drying chamber 2 and flowed down and conveyed to an upper portion by a grain elevator 3 to store the same. While circulating hot air to the drying chamber 2 to dry it, a plurality of swelling amount sensors 4 for detecting the swelling grain amount at predetermined intervals are provided in the storage chamber 1 in the vertical direction, The amount sensor 4,
Regarding detection of the amount of the stake-in grains squeezed up to 4 intervals, the paddy flow sensor 5 for detecting the stalks passing through the grain raising machine 3 is turned ON.
An addition means for calculating and adding the amount of grain to be added based on time is provided, and a configuration of a system for detecting the amount of grain to be added of a grain dryer is provided.

[0007]

The grain accommodated in the grain storage chamber 1 of the grain dryer is fed out from the grain storage chamber 1 through the grain drying chamber 2 and is conveyed down to the top by the grain raising machine 3 to The hot air passes through the drying chamber 2 while being circulated in the storage chamber 1 to be exposed to the hot air and dried, and when the grain reaches the finishing target moisture, the dryer is stopped to dry the grain. Is stopped.

[0008] If this drying operation is, for example, a model in which 20 stones can be loaded and dried, grain loading is started and
Depending on the stake grain, each stake amount sensor 4 provided at the position of 6 stones of the lowest stake, 8 stones, 12 stones, 16 stones in the middle and 20 stones of the maximum stake on the inner wall of the storage chamber 1 When turned on by the grain, it is detected that the grain has been stretched to the position of the maximum amount of 20 stones, and the suspension is stopped. The hot air temperature is set by the detected amount of grain of 20 stones. Be dried. At the time of this grain loading, the grain flow sensor 5 is turned on by being conveyed to the upper part by the grain raising machine 3 and the grain loaded into the storage chamber 1 passes through this grain raising machine 3. Thus, the grain is detected as being intrusive. The stuck amount sensor 4 at the position of 16 stones
Is turned on and the staking operation is immediately stopped, and when the stake amount sensor 4 at the position of 20 jewels is not turned on, it is detected that the amount of staken grain is 16 jewels. When the stake amount sensor 4 at the 16-stone position is turned on and the staking operation is stopped after a predetermined time, and when the stake amount sensor 4 at the 20-stone position is not turned on, the 16-stone position and the 20-stone position are Grain to the middle position,
It is detected that the paddling flow has been detected, and the time elapsed since the paddy flow sensor 5 was turned on is detected by this detection. The detected elapsed time indicates the end that is extended from the 16 stone position to the intermediate position. The amount of grain is calculated, and the calculated amount of overhanging grain is added to 16 stones to detect the entire amount of overhanging grain. The hot air temperature is set and dried.

[0009]

As described above, according to the present invention, the detection of the end amount of the grain that is stretched to the position between the swelling amount sensors 4 and 4 is calculated by the elapsed time after the paddy flow sensor 5 is turned on. Since the calculated amount of cut-in grains is added to detect the whole amount of cut-in grains, the amount of cut-in grains can be detected easily and accurately.

[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 6 for drying grains.
The figure shows a state in which a moisture sensor 7 for detecting grain moisture, a burner 8 for generating hot air, and the like are attached. The dryer 6 has a rectangular shape that is long in the front-rear direction, and a transfer gutter 10 and a ceiling plate 11 in which a transfer spiral is rotatably installed on an upper part of a machine wall 9.
And a grain storage chamber 1 for storing grains is formed below the ceiling plate 11.

[0011] On the inner wall portion of the machine wall 9 forming the storage chamber 1, ON-OFF by the grains stretched into the storage chamber 1
The pressure-sensitive switch type swelling amount sensor 4 is provided by mounting it with bolts and nuts. For example, if it is a model that can dry by loading 20 stones, the minimum loading is 6 stones and 8 in the middle.
Stones, 12 stones, 16 stones, and the maximum tension of 20 stones, the stake amount sensor 4 to the inner wall portion in order from the bottom (a),
Five (B), (C), (D), and (E) are provided. Further, although the model changes depending on the amount of grains that can be stuck, the number of the stuck amount sensors 4 attached differs depending on the model.

The pressure sensitive switch of the squeeze amount sensor 4 is
The storage chamber 1 is turned on by being pushed by the swelling grains from the bottom and turned on.
The amount of kernels stuck in is detected, and the detected value is input to the sticking detection device 32 provided in the upper part of the transfer gutter 10. According to the input amount of stuck kernels, For example, it is one of the setting conditions for setting the temperature of the hot air generated from the burner 8.

The grain drying chambers 2 and 2 are provided below the storage chamber 1 between the air exhaust chambers 12 and 12 on the left and right sides and the air blowing chamber 13 in the central portion, and are provided below the drying chambers 2 and 2. Each rotatably supports a feeding valve 13 'for feeding and flowing down the grain. The grain collecting trough 14 rotatably supports a transfer spiral and is provided below the drying chambers 2 and 2 to communicate with each other.

The burner 8 is installed inside the burner case 15, and the burner case 15 is detachably attached to the outer surface of the machine wall 9 so as to correspond to the inlet side of the blower chamber 13 on the front side of the machine wall 9. The burner 8, the moisture sensor 7 and the dryer 6 are detachably provided on the machine wall 9 on the front side, which is provided with an operating device 16 for starting and stopping the work for each of the operations of loading, drying and discharging. There is.

The exhaust fan 19 is provided on the rear side of the machine wall 9 on the central rear side exhaust cylinder 18 provided for communicating with the left and right exhaust chambers 12, 12. On the side machine wall 9, an exhaust fan motor 2 that rotationally drives the exhaust fan 19 is provided.
0 is set. Reference numeral 21 is a valve motor that rotationally drives the delivery valves 13 'and 13' through a reduction mechanism.

The fuel pump 22 has a fuel valve,
The burner case 15 is provided outside the lower plate, and by opening and closing the fuel valve, the fuel pump 22 sucks the fuel in the fuel tank 23 and supplies the fuel to the burner 8. The blower 24 has an upper plate. This fan is provided on the outside and is driven to rotate at a variable speed by a speed changer blower motor 25 so that combustion air corresponding to the supplied fuel amount is blown to the burner 8 by the blower 24.

The diffusion plate 26 is provided at the center of the bottom plate of the transfer gutter 10 in the front-rear direction and below the supply port for supplying the transfer grains into the storage chamber 1, and the grains are evenly distributed into the storage chamber 1. Are diffused and reduced. The grain-raising machine 3 is provided outside the front of the machine wall 9 and has a belt with a bucket conveyor 27 stretched inside. The upper end of the grain-raising machine 3 has a throw-out cylinder 28 between it and the starting end of the transfer gutter 10. A supply gutter 29 is provided between the lower end portion and the terminal end portion of the grain collecting gutter 14 so as to communicate with each other.

Reference numeral 30 denotes a grain elevator motor, which rotationally drives the belt with the bucket conveyor 27, the transfer spiral inside the transfer gutter 10, the moving spiral inside the diffusion plate 26 and the grain collecting gutter 14, and the like. .. An actuator 33, which is conveyed to the upper portion by the bucket conveyor 27 and is rotated by the grain elevator 3 and the grains passing through the inside of the discharging cylinder 28, is rotatably supported in the discharging cylinder 28. The paddy flow sensor 5 including the switch 34 that is turned on and off by the rotation of the actuator 33 is provided, and it is detected that the grain is passing by the ON state of the switch 34, and the OFF state is detected. It is detected that the grain has not passed through.
When the paddy flow sensor 5 is turned on, the counter provided in the swelling detection device 32 starts counting and the time after the paddy flow sensor 5 is turned on is detected.

The moisture sensor 7 is provided substantially in the central portion in the vertical direction of the grain raising machine 3, and the moisture sensor 7 rotates the moisture motor 31 when an electric measurement signal is transmitted from the operating device 16. Each part of the moisture sensor 7 is rotationally driven, receives the grain falling during the upper conveyance by the bucket conveyor 27, and while crushing the grain by pressure, the moisture of the crushed grain is detected.

The stake-in detecting device 32 has a box shape and is provided with an A-D conversion circuit 35 into which ON-OFF information of each stake-in amount sensor 4 is input.
The converted value is input from the conversion circuit 35 to the analog circuit 36 of the operating device 16. The operating device 16 has a box shape, and a start switch 37 for starting the dryer 6 for each work such as loading, drying and discharging the dryer 6 on the surface plate of the box.
A stop switch 38 for stopping operation, a memory clear switch, a moisture setting shaving 39 for setting the finishing target of the grains to be dried by the dryer 6 according to the operating position, and a grain type setting sever for setting the hot air temperature generated from the burner 8. Only 40
Further, a display unit 41 for displaying various items is provided.

Inside the paddy flow sensor 5, the ON-
OFF information and other digital sensor information, the start switch 37, the stop switch 38, the moisture setting knob 3
9 and the digital input circuit 42 for inputting operations such as the grain type setting picker 40, the detection value of the moisture sensor 7, the analog sensor information, and the turning-on of each of the sticking amount sensors 4 of the sticking detection device 32. The analog circuit 36 to which OFF information and the like are input, the AD conversion circuit 43 for AD converting the input value input to the analog circuit 36, the serial data receiving circuit 44, and the operation of the memory clear switch are input. Digital input circuit 45, each of these circuits 42, 43,
Dryer control microcomputer 4 for performing arithmetic logic operation, comparison operation, etc. on input values input from 44 and 45
6, a memory 47, a drying control device including output circuits 48, 49, 50 for receiving and outputting various commands instructed from the dryer control microcomputer 46, a display circuit 51, a serial data transmission circuit 52, a non-volatile memory 53, and the like. 54 is provided. The output circuit 48 is the motor 2
0, 30 system, etc. are output, the output circuit 49 outputs the combustion system of the fuel pump 22 and the blower motor 25, the output circuit 50 outputs the moisture motor 31, and the display circuit 5
1 is output to the display unit 41. Also, the setting picks 39, 40
Is a rotary switch system.

The control for detecting the amount of grain stuck and the control for determining the abnormality of each amount sensor 4 by the drying controller 54 are as follows.
The procedure is as follows. In the stake amount detection control, that is, the start switch 37 for starting the grain staking operation is turned on (step 101), if NO, the process returns to step 101, and if YES, the stake operation process is performed (step 101). 10
2) The loading amount sensor 4 is read (step 1
03), for example, the extension amount sensor 4 at (d) at the position of 16 stone
Is ON (step 104) or NO (step 1)
03), if YES, the counter of the paddy flow sensor 5 is cleared (step 105), the paddy flow sensor 5 is read (step 106), and the presence or absence of paddy is detected (step 107). Paddy flow sensor 5
Counting of the counter is started (step 1
08), if NO, the counting of the counter of the paddy flow sensor 5 is stopped (step 109), and it is detected whether a predetermined time has passed (step 110). If NO, the process returns to step (106), and if YES. For example, the end grain amount ν of the grain is calculated by the value of the counter of the paddy flow sensor 5 (step 111) and added to the 16 stone stake amount V detected by the position of the ridge amount sensor 4 (d). Then, the total amount W of grain incorporated is calculated (step 112), the total amount W of grain incorporated is displayed on the display unit 41 (step 113), and the stop switch 38 is turned ON (step 114), YES.
If so, the amount of stake-in data is stored in the memory 47 (step 115), and the stake-in operation is stopped (step 11).
6). If it is ON in (step 114), the amount sensor 4 is read (step 117), and the amount sensor 4 of (d) at 16 stone positions and the amount of extension (e) at 20 stone positions are read. ON with the sensor 4 is detected (step 118),
If NO, the process returns to step 106, and if YES, 1
It is set by adding the stake-in sensor 4ON at the 20-stone position (e) to the stake-in sensor 4 at the 6-stone position (d) (step 119), and returns to (step 105).

In the abnormality determination control of the stake amount sensor 4 during the discharging work, the starting switch 37 for starting the discharging work of the grain is turned on (step 201), and if NO, the process returns to step 201 and YES. If so, the discharge operation process is performed (step 202), the paddy flow sensor 5 is read (step 203), and the paddy is detected (step 2).
04), if NO, return to (step 203), YES
If so, it is detected whether a predetermined time has passed (step 20).
5) If NO, the process returns to step 203, and if YES, the discharge operation stop process is performed (step 206), the stuck amount sensor 4 is read (step 207), and all paddy rice is detected (step 208). ), If NO, it is displayed on the display unit 41 that the stuck amount sensor 4 is abnormal (step 209). If YES (step 20)
9) is exceeded. A malfunction of the stuck amount sensor 4 is detected.

In the abnormality determination control of the stake amount sensor 4 during the stake operation, the start switch 37 for starting the stake operation of the grains is turned on (step 301), and if NO, the process returns to the step 301. , YES, the stake-in operation processing is performed (step 302), the stake-in amount sensor 4 is read (step 303), and for example, it is detected whether or not the stake-in amount sensor 4 at the 12 stone position (c) exists. 304),
If NO, the process returns to step 303, and if YES, 1
It is detected whether or not there is padding amount sensor 4 at 6 stone positions (d) (step 305), and if YES (step 303)
If NO, it is detected whether or not there is the paddling amount sensor 4 hull of the 20 stone position (e) (step 306), if NO, the process returns to step 303, and if YES, the 16 stone position (d) is detected. The display unit 41 indicates that the stuck amount sensor 4 is abnormal.
Is displayed (step 307). A malfunction of the stuck amount sensor 4 is detected.

The operation of the above embodiment will be described below. By operating the setting scoops 39, 40 of the operating device 16 to predetermined positions and operating the start switch 37 for starting the drying operation, the respective parts of the grain dryer 6, the burner 8, the moisture sensor 7, etc. are started, Hot air is generated from the burner 8, the hot air passes from the air blowing chamber 13 through the grain drying chambers 2 and 2, passes through the air exhaust chambers 12 and 12 and the air exhaust passage chamber 17, and is exhausted by the air exhaust unit 19. ..

The grains stored in the grain storage chamber 1 are dried by being exposed to the hot air while flowing down from the storage chamber 1 into the drying chambers 2 and 2 and fed by the feeding valves 13 'and 13'. It is fed to the lower part and flows down, and is fed from the grain collecting gutter 14 through the supply gutter 29 into the grain raising machine 3 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 10 and is supplied from the transfer gutter 10 onto the diffusion plate 26 by an upper transfer spiral, and is uniformly diffused and reduced into the storage chamber 1 by the diffusion plate 26, circulated and dried, and the water content is set. If the moisture sensor 7 detects the same grain moisture as the finishing target moisture set by the scooping 39, it is determined that the drying is completed, and the drying controller 54 of the operating device 16 automatically controls the dryer 6 to automatically stop. To stop the grain drying.

During the stake-in work before the drying work, each stake-in amount sensor 4 in the storage chamber 1 is turned on by the grain detection.
And the elapsed time from ON by the grain detection of the paddy flow sensor 5 from the ON, the amount of grain loaded into the storage chamber 1 is detected, and the detected amount of grain loaded and the set grain The temperature of the hot air generated from the burner 8 is set according to the type, and the burner 8 is dried.

[Brief description of drawings]

 The figure shows an embodiment of the invention.

FIG. 1 is a block diagram.

FIG. 2 is a block diagram of an operating device.

FIG. 3 is a flowchart.

FIG. 4 is a flowchart.

FIG. 5 is a flowchart.

FIG. 6 is an enlarged side sectional view of a part of the grain dryer.

FIG. 7 is an overall side view of the grain dryer, which is partially broken.

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

FIG. 9 is an enlarged front view in which a part of the grain dryer is partially broken.

[Explanation of symbols]

 1 Grain storage chamber 2 Grain drying chamber 3 Grain raising machine 4 Overhang amount sensor 5 Paddy flow sensor

Claims (1)

[Claims] 1. Grains are fed from an upper grain storage chamber 1 to a lower grain drying chamber 2 and flowed down and conveyed to an upper portion by a grain raiser 3 and hot air is dried while circulating the storage chamber 1. The storage chamber 1 is provided with a plurality of stake amount sensors 4 for detecting the amount of stake-in grains in the up-down direction at predetermined intervals while being ventilated into the chamber 2 and dried. Regarding the detection of the amount of grain infused until the interval, the amount of grain infused is calculated and added based on the ON time of the paddy flow sensor 5 that detects the grains passing through the grain raising machine 3. A method for detecting the amount of grain stuck in a grain dryer, characterized by comprising an adding means.