JPH0719748A - System for managing abnormality in feeding amount sensor in grain particle drying machine - Google Patents

Abstract

PURPOSE:To shorten the grain particle drying time by a method wherein an intermediate position of an intermediate OFF state feeding amount sensor and an upstream side ON state feeding amount sensor as well as an upstream side ON state feeding amount sensor is estimated and detected as a feeding amount of grain particles. CONSTITUTION:When a feeding amount of grain particles is detected, feeding amount sensors 3a and 3b are turned on in sequence from their lower side, intermediate one is turned off and the other above this OFF state sensor is turned on so as to detect the feeding amount of grain particles, resulting in that abnormal it in these feeding amount sensors 3a and 3b are detected. Then under this abnormal state, an intermediate position of the feeding amount sensor of intermediate OFF state, feeding amount sensors 3a, 3b in ON state on the upstream side and downstream side is detected as a feeding grain particle amount. The drying air temperature is set with this detected grain particle amount being applied as one condition for setting the drying air temperature and then the grain particles are dried at this set drying air temperature. With such an arrangement as above, it is possible to shorten the time required to dry grain particles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for processing an abnormal occurrence of a stuck amount sensor in a grain dryer.

[0002]

2. Description of the Related Art Conventionally, grains are dried by being exposed to the drying air as the drying air passes through the drying chamber while being fed and circulated while being fed and circulated. Then, when the moisture content of the grain being dried reaches the finishing target moisture content, the drying of the grain is stopped. During the stake operation in the first stage of the drying operation, the amount of grains to be infused into the storage chamber is detected by ON-OF by the pressure of the spilled grains sequentially from the lower portion in the storage chamber.
A plurality of the extension amount sensors on the (a) row side and the extension amount sensors on the (b) row side, which are F, are alternately provided at predetermined intervals in the vertical direction. Both of these (a) and (b) The amount of the stuck grain is detected by turning on each of the stuck amount sensors in the row.

When the amount of swelling is detected, each amount of swelling is sequentially turned on from the lower part, and when the amount of swelling is detected by turning OFF in the middle and the upper side of this OFF being in the ON state, these tensions are detected. It is detected that an abnormality has occurred in the feed amount sensor, and the minimum amount of grain stuck in the dryer is set as the amount of grain stuck, or the ON state of the lower side of the amount sensor is turned ON during the process. Set the stuck amount sensor position in the state as the stuck grain amount,
The processing method at the time of occurrence of an abnormality was such that one of these is set as the amount of grain to be loaded and the drying air temperature is set as one condition for setting the drying air temperature.

[0004]

While the grains stored in the grain storage chamber of the grain dryer are fed out from the storage chamber to the grain drying chamber and circulated while being dried, the drying air blows through the drying chamber. By passing, it is exposed to this dry air and dried,
When the moisture content of the grain being dried reaches the finishing target moisture content, the dryer is stopped and controlled, and the drying of the grain is stopped.

During the grain loading operation in the first stage of the drying operation, the storage chambers are alternately provided from the lower part at a predetermined interval (a).
The row-side stake amount sensors and (b) the row-side stake amount sensors are turned on sequentially from the bottom by the pressure of the stake-in grains, and the stake-in amount at the uppermost position in this ON state. The sensor position is detected and set as the amount of grain to be stuck, and the set amount of grain to be stuck is set as a condition for setting the temperature of dry air, and the temperature of dry air is set.

At the time of detecting the amount of grain to be infused, each infusion amount sensor is sequentially turned on from the lower part, and is turned off midway.
When the upper side of F is in the ON state and the amount of grain is detected, it is detected that an abnormality has occurred in each of these amount sensors, and in the case of this abnormality, the lowest grain of this dryer is Whether the amount is set as the amount of grain to be squeezed, or the position of the amount of squeeze sensor that is in the ON state below the OFF state of the amount of swelling grain sensor is set as the amount of grain to be crushed, As one of the conditions for setting the drying air temperature, the drying air temperature is set with one of the above as the amount of grain to be infused, and the kernel is dried at this set drying air temperature.

When the drying air temperature is dried at the above-mentioned drying air temperature, the drying air temperature is set with a smaller amount of grain than the actually loaded amount of grain. Grains are dried at a temperature significantly lower than the drying air temperature set by the amount of kernels, which may take a long time to dry. It is what

[0008]

According to the present invention, while the grains are being fed from the grain storage chamber 8 at the upper part to the grain drying chamber 11 and flowing down, the grains are exposed to dry air to be dried, and the storage chamber 8 is also provided. The inside is turned on by the pressure of the sewn grain sequentially from the bottom.
Turning off (a) row-side sensor 3a, ... and (b) row-side sensor 3b, .. In the grain dryer for detecting the
...... is turned on sequentially from the bottom and turned off during the process.
When the amount of grain is detected in the upper side of the ON state, it is detected that an abnormality has occurred in the amount sensors 3a and 3b, and the middle of the amount sensors 3a and 3b in the upper and lower ON states is detected. A processing system at the time of occurrence of an abnormal amount sensor of a grain dryer is characterized in that the position is estimated and detected as the amount of grain.

[0009]

The grain stored in the grain storage chamber 8 of the grain dryer is fed from the storage chamber 8 to the grain drying chamber 11 and circulated while the drying air is blown down and circulated. When the grain water being dried reaches the finishing target moisture by being exposed to the dry air by passing through, the dryer is stopped and controlled, and the drying of the grain is stopped.

During the grain loading work in the first stage of the drying work, the loading amount sensors 3a on the (a) row side, which are alternately arranged from the bottom in the storage chamber 8 at predetermined intervals, and (b). The stake amount sensors 3b, ... On the row side are sequentially turned on by the pressure of the swelling grain from the bottom, and the stake amount sensor 3a or 3b at the uppermost position in the ON state is stretched. It is detected and set as the amount of incorporated grain, and the set amount of grain is set as a condition for setting the drying air temperature, and the drying air temperature is set.

At the time of detection of the amount of grain to be infused, the respective infeed amount sensors 3a, ..., 3b, ... are sequentially turned on from the bottom, the middle is OFF, and the upper side of this OFF is in the ON state. When the amount of grains to be stuck is detected, each of these amount sensors 3 to be stuck
It is detected that an abnormality has occurred in a, ..., 3b, .. In this abnormality, the intermediate position of the extension amount sensors 3a, 3b that are in the upper and lower ON states of the intermediate OFF state is extended. It is detected as the amount of grain incorporated, the amount of the detected grain is the dry air temperature is set as one condition for setting the dry air temperature,
The grain is dried at this set drying air temperature.

[0012]

The intermediate position of the stake amount sensors 3a and 3b, which are in the upper and lower ON states of the OFF state in the middle, is estimated to be the swelling grain amount and is detected, so that the swelling is actually performed. The amount of difference from the amount of overwhelmed grains was small, and therefore the amount of difference in the drying air temperature was also small, and it took longer to dry the grains.

[0013]

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.
3 shows a state in which a moisture sensor 2 for detecting the moisture of the grain, a swelling amount sensor 3a for detecting the amount of the spilled grain 3a, ..., 3b ,. is there.

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 on the upper part of the machine wall 5. Below the ceiling plate 7, grains are provided. A grain storage chamber 8 for storing grains is formed. A relay case 9 is provided on the upper plate of the transfer gutter 6, and a stake-in control panel 10 is detachably mounted in the relay case 9. The grain drying chambers 11, 11 are provided below the storage chamber 8 between the left and right air exhaust chambers 12, 12 and the central air blowing chamber 13,
At the lower portions of the drying chambers 11 and 11, feeding valves 14 for feeding and flowing down the grains are rotatably supported.

The grain collecting gutter 15 rotatably supports a transfer spiral and is provided below the drying chambers 11 and 11 to communicate with each other.
The burner 4 is provided internally in a burner case 16, and the burner case 16 is detachably provided on the outer surface of the front machine wall 5 so as to correspond to the inlet side of the blower chamber 13 on the front side of the front machine wall 5. Further, an operating device 17 for starting and stopping the dryer 1, the moisture sensor 2 and the burner 4 for each operation of loading, drying and discharging is detachably provided on the front machine wall 5.

The exhaust fan 18 is provided on the rear side exhaust wall 12, which is provided in the central rear side exhaust cylinder 20 of the exhaust passage chamber 19 provided so as to communicate with the left and right exhaust chambers 12, 12. An exhaust fan motor 21 that rotationally drives the exhaust fan 18 is provided at 5.
The valve motor 22 drives the delivery valves 14, 14 to rotate via a speed reduction mechanism.

The fuel pump 23 has a fuel valve,
The fuel pump 23 is provided outside the lower plate of the burner case 16, and the fuel in the fuel tank 24 is sucked by the fuel pump 23 to be supplied to the burner 4. Blower 25
Is provided on the outer side of the upper plate, is rotationally driven at a variable speed by a fan motor 26 for speed change, and the combustion air corresponding to the supplied fuel amount is blown by the fan 25 to the burner 4.

The diffusion plate 27 is provided at the center 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 to uniformly diffuse and reduce the grains to the storage chamber 8. ing.
The grain-sustaining machine 28 is provided on the outer side of the front side machine wall 5, a belt with a bucket conveyor 29 is stretched inside, and the upper end is provided with a throw-out cylinder 30 between the transfer gutter 6 and the starting end. The lower end is provided with a supply gutter 31 between the terminal end of the grain collecting gutter 15 and the lower end thereof.

The grain elevator motor 32 is used for the bucket conveyor 2
The belt with 9 and the transfer spiral in the transfer gutter 6 and the transfer spiral in the diffusing plate 27 and the grain collecting gutter 15 are rotationally driven. The moisture sensor 2 is provided substantially vertically in the center of the grain raising machine 28. This moisture sensor 2 is rotated by a moisture motor 33 when an electric measurement signal is transmitted from the operating device 17 to cause the moisture sensor 2 to move. Each part is driven to rotate, and bucket conveyor 2
At 9, the grain that falls during the upward transportation is received, and the moisture of the crushed grain is detected while the grain is crushed under pressure.

The amount sensors 3a, ..., 3b, ...
Are provided on the inner surface of the front side machine wall 5 that forms the storage chamber 8 alternately in two rows of (a) row and (b) row at predetermined intervals in the vertical direction. , ON-OFF
It has a switch inside and is pressed by the pressure of the stake grain,
This switch is configured to be turned on, and as shown in FIG. 3, the connection amount sensors 3a and 3b and the connection control panel 10 in the relay case 9 are connected by the connectors 34 and the cords 35. In addition, the connection control panel 10 and the control panel 36 provided in the operating device 17 are connected to each other by the respective connectors 37 and the respective cords 38.

The amount sensors 3a, ..., 3b, ...
If, for example, the dryer 1 has a grain drying capacity of 32 stones, the row (a) of each of the stuck amount sensors 3a is
Starting from the bottom, the minimum stake is 6 to 12, 20 and 2
It is provided at a position corresponding to 8 jewels, and the row (b) of the stake amount sensor 3b is provided at a position corresponding to 8 jewels, 16 jewels, 24 jewels and a maximum stake of 32 jewels in order from the bottom. There is.

The amount sensors 3a, ..., 3b, ...
Is turned on by the pressure of the overwhelming grain as shown in Fig. 3.
In this state, a predetermined analog voltage value that differs depending on the number of ON states is input as a signal to the stake-in control panel 10 via each connector 34 and each cord 35, and this input is a digital signal in this stake-in control panel 10. The changed digital signal is input to the control panel 36 through each connector 37 and each code 38, and the input amount is used to detect the amount of grain to be stuck.

The combination of the display (input) depending on the relationship between ON-OFF and the input voltage of the (a) row-side extension amount sensors 3a and (b) the row-side extension amount sensors 3b is as shown in FIG. Other than these combination inputs, it is configured to detect that an abnormality has occurred in each of the stuck amount sensors 3a and 3b. For example, (a) row side is sequentially turned on from the lower side, and NO.
When the squeeze amount sensor 3a of No. 3 is turned on, the input voltage V2 is input by this turning on, and the (b) row side is turned on sequentially from the bottom, and NO. When the stake amount sensor 3b of 4 is turned on, the input voltage V2 is input by this ON, and the display (input) is displayed as the number 04 by these input voltages, and the stake grain amount is 16 It is configured to be detected as a stone.

The operating device 17 has a box shape, and a drier 1, a moisture sensor 2, a burner 4 and the like are put on the surface plate of the box body, and each start switch 39 is operated to start each operation of drying and discharging. , A stop switch 40 for stopping operation, and a moisture setting knob 4 for setting the finishing target moisture of the grain according to the operation position.
1, a grain type setting knob 42 for setting one item of the dry air temperature generated from the burner 4 according to the operation position, a display section 43 for digitally displaying various display items, a monitor display, and the like.

The control panel 36 is provided in the operating device 17, and the detection values detected by the moisture sensor 2 and the hot air temperature sensor 44, and the squeeze control panel 10 by turning on the swelling amount sensors 3a and 3b. An analog signal, an operation of each switch 39, 40, an operation of each setting knob 41, 42, etc. are input, and a CPU 45 that performs arithmetic logic operation and comparison operation on these inputs
Each of the motors 21, 22, 2 is configured by the CPU 45.
6, 32, 33, the fuel valve, the fuel pump 23, etc. are started, stopped, and controlled. Each setting pick 4
1, 42 are rotary switch systems, and predetermined numerical values and types are set according to the operation position.

The temperature setting of the dry air generated from the burner 4 is set according to the amount of grain to be stuck detected by turning on each of the amount sensors 3a and 3b and the operation position of the grain type setting grinder 42. It is set according to the grain type. The operation of the above embodiment will be described below. When the start switch 39 for starting the staking operation of the operating device 17 is operated, each part required for the stake operation of the grain dryer 1 is started, and the grains are fed into the stake hopper of the grain raising machine 28. , The grain is conveyed to the upper part by the bucket conveyor 29 and is supplied into the transfer gutter 6 through the throwing cylinder 30, and is transferred and supplied from the transfer gutter 6 onto the diffusion plate 27 by the upper transfer spiral,
The diffusing plate 27 is evenly stretched into the grain storage chamber 8.

Pressed by the pressure of the swelling grain, the respective swelling amount sensors 3a, ..., 3b, ... Are turned on, and a predetermined analog voltage value which differs depending on the number of the on states is used as a signal. Squeeze control panel 10 in relay case 9
Is input to the control panel 36 of the operating device 17 and the input is converted into a digital signal by the stake-in control panel 10, and the input amount of the stake-in kernel is detected by the control panel 36. .

Setting knobs 41, 42 of the operating device 17 in the previous period
Is operated to a predetermined position and the start switch 39 for starting the drying operation is operated to start the respective parts of the dryer 1, the burner 4, the moisture sensor 2 and the like, and the respective sticking amount sensors 3a,
The drying air temperature generated from the burner 4 is set by the amount of the overhanging grain detected when the 3b is turned on and the grain type set by the operation of the grain type setting knob 42, and the set temperature from the burner 4 is set. The dry air is generated, and this dry air is generated in the blower chamber 1
3 through each grain drying chamber 11, 11 and each exhaust chamber 1
The exhaust air is sucked and exhausted by the air blower 18 through the exhaust passages 2 and 12 and the exhaust passage chamber 19.

The grains stored in the grain storage chamber 8 are dried by being exposed to the dry air while flowing down from the storage chamber 8 into the drying chambers 11, 11. It is delivered to the lower part and flows down, and is fed from the grain collecting gutter 15 through the supply gutter 31 into the grain raising machine 28 by the lower transfer spiral, and is conveyed to the upper part by the bucket conveyor 29 and transferred through the throwing pipe 30. It is supplied into the gutter 6 and is transferred from the transfer gutter 6 onto the diffusion plate 27 by an upper transfer spiral, and is uniformly diffused and reduced in the storage chamber 8 by the diffusion plate 27 and circulated and dried.

When the grain moisture detected by the moisture sensor 2 is the same as the finishing target moisture set by operating the moisture setting knob 41, it is detected that the drying is completed, The control panel 36 automatically controls the dryer 1 to automatically stop, and the grain drying is stopped. The detection of the amount of grain to be squeezed when the stake amount sensors 3a and 3b are abnormal is performed as follows.

For example, as shown in FIGS. 7 and 8, the (a) row side is sequentially turned on from the bottom, and NO. 3 stake amount sensor 3
a is turned on, the (b) row side is turned on sequentially from the bottom, and NO. No. 2 on the (b) row side in the middle is turned on until the swelling amount sensor 3b of No. 2 is turned on. No. 4 on the side of (a) row and the swelling amount sensor 3b of FIG. No. 5 on the side of the column (a) while the swelling amount sensor 3a of No. 5 remains in the OFF state. No. 5 on the (b) row side above the squeeze amount sensor 3a. When the swelling amount sensor 3b of 6 is turned on, it is detected that an abnormality has occurred in the combination of these squeezing amount sensors 3a and 3b, and when this abnormality is detected, it is turned on.
No. on the (a) column side of the state. No. 3 on the (b) row side and the amount sensor 3a of the extension amount of No. O between the sensor 6 and the amount sensor 3b
No. on the (a) column side of the highest position in the FF state. The amount of grain (20 stones) at the position 5 of the amount of swelling sensor 3a is estimated and detected as the amount of swelling grain, and the detected amount of swelling grain (20 stones)
(Stone) is one of the items for display and setting of the drying air temperature.

As shown in FIGS. 5 and 6, (a) the column side is turned on from the bottom and the NO. The swelling amount sensor 3a of No. 1 is turned on, the (b) row side is sequentially turned on from the bottom, and NO. No. 4 on the side of (a) row is turned on until the swelling amount sensor 3b of No. 4 is turned on.
O. If the amount sensor 3a of 3 is still in the OFF state, it is detected that an abnormality has occurred in the combination of the amount sensors 3a and 3b, and if this abnormality is detected, the (2) row in the ON state is detected. No. on the side. 2 and NO. The amount sensor 3 of 4
No. on the (a) column side in the OFF state between b and 3b. The grain amount (12 stones) at the position 3 of the amount sensor 3a is estimated to be the amount of grain to be detected, and is detected.
(Stone) is one of the items for display and setting of the drying air temperature.

As shown in FIGS. 9 and 10, (a) row side is sequentially turned on from the bottom, and NO. 3 is turned on up to the swelling amount sensor 3a, and the (b) row side is sequentially turned on from the bottom,
O. No. 2 on the (b) row side in the middle is turned on. 4, NO. No. 6 on the side of (a) row and the amount sensors 3b and 3b of No. 5, NO. 7, the amount sensor 3a,
3a and 3a remain off, and (a) NO. No. 7 on the (b) row side above the stake amount sensor 3a of No. When the swelling amount sensor 3b of No. 8 is turned on, these swelling amount sensors 3
It is detected that an abnormality has occurred in the combination of a and 3b, and when this abnormality is detected, the NO. 3 and the NO. No. 8 of the highest position in the OFF state between the stake amount sensor 3b (a)
No. on the row side 7, the amount of grain (2
8 stones) are estimated and detected as the amount of spilled grains, and the detected amount of spilled grains (28 stones) is used as one item for display and setting of the drying air temperature.

[Brief description of drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is a diagram showing the relationship between ON-OFF and the display of the stake amount sensor during normal operation.

FIG. 2 is an enlarged view of the placement amount sensor.

[Fig. 3] Circuit diagram

FIG. 4 is a block diagram.

FIG. 5 is a relational diagram between ON-OFF and the display of the stake amount sensor when an abnormality occurs.

[Fig. 6] ON-OFF diagram of the stake amount sensor at the time of abnormality

FIG. 7 is a relational diagram between ON-OFF and the display of the stuck amount sensor when an abnormality occurs.

[Fig. 8] ON-OFF diagram of the stake amount sensor at the time of abnormality

FIG. 9 is a relational diagram between ON-OFF and the display of the stake amount sensor when an abnormality occurs.

[Fig. 10] ON-OFF diagram of the amount sensor for stake-in at the time of abnormality

FIG. 11 is an overall side view of the grain dryer, which can be partially broken.

12 is an enlarged sectional view taken along line AA of FIG.

FIG. 13 is a partially cutaway front view of the operating device.

FIG. 14 is a plan view of a relay case.

[Explanation of symbols]

 3a Overhang amount sensor 3b Overhang amount sensor 8 Grain storage chamber 11 Grain drying chamber

Claims (1)

[Claims] 1. An upper grain storage chamber 8 to a grain drying chamber 11
While the grains are being fed out and allowed to flow down, they are provided so as to be dried by being exposed to a dry air, and the storage chamber 8 is turned on and off sequentially from the bottom by the pressure of the grains. Sensors 3a, ... And (b) row side sensor 3b,
In a grain dryer for detecting the amount of grain loaded by alternately arranging a plurality of and ... alternately at a predetermined interval in the vertical direction, the respective amount sensors 3a, ... 3b, ... are sequentially turned on from the bottom. Then, when the amount of grain is detected with the state being OFF in the middle and the upper side of OFF being in the ON state, it is detected that an abnormality has occurred in the amount sensors 3a and 3b, and the tension in the ON state on both upper and lower sides is detected. A processing method at the time of occurrence of an abnormal amount sensor of a grain dryer, characterized in that an intermediate position between the amount sensors 3a and 3b is estimated and detected as the amount of grain.