JPH0694364A - Drying stopping system in crop particle drying machine - Google Patents

Abstract

PURPOSE:To enable a drying operation to be terminated in reference to a drying residual time by a method wherein a moisture setting device is turned OFF during a crop particle drying operation and the drying residual time of a drying completion estimating time is detected by a timer when a crop particle finishing target moisture is set to its cut (no setting) state. CONSTITUTION:In the case that a moisture setting device 35 is turned OFF during a drying operation and a crop particle finishing target moisture is cut (no setting), a drying residual time of a drying completion estimated time calculated in reference to a detected crop moisture and a finished target moisture is detected by a timer 63. As the drying residual time is detected by the timer 63 as 0 hour, the crop drying operation is terminated. Accordingly, in the case that the drying termination can not be controlled with the crop particle moisture, the drying termination is controlled in reference to the drying residual time to enable an over-drying of the crop particles can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying stopping system for a grain dryer.

[0002]

2. Description of the Related Art Conventionally, a grain is exposed to hot air from a grain storage chamber to a grain drying chamber as hot air generated from a hot air device passes through the drying chamber while being fed down and circulated. The moisture content of some of the grains being dried is detected by a moisture sensor, and the moisture content of the detected grain moisture and the moisture setting device provided in the operation control device are operated to set the finishing target moisture content. Is compared, and when the detected grain moisture reaches the finishing target moisture, it is determined that the drying is completed, and the drying of the grain is stopped.

During this drying operation, the moisture setting device is OF
When it is operated to F, the finish target water content is set to off, whereby the automatic stop of the drying due to the water content of the grain is not performed.

[0004]

While the grains stored in the grain storage chamber of the grain dryer are fed from the storage chamber to the grain drying chamber and are circulated while flowing down, hot air generated from the hot air device is generated. By passing through the drying chamber, the grain is exposed to the hot air and dried, and the grain moisture of some of the grains being dried is detected by a moisture sensor. By the operation of the moisture setting device, the set finishing target moisture is compared, and when the detected grain moisture reaches the finishing target moisture, it is detected that the drying is completed, and the drying of the grain is stopped.

During this drying operation, the moisture setting device is OF
If F is operated, it means that the target finishing moisture has been set to off (no setting), and if the drying is continued as it is, the automatic stop of the drying due to the moisture of the grain will not be carried out. The problem was that it would become over-dried, but we are trying to eliminate this.

[0006]

Therefore, the present invention provides
While feeding and flowing down the grains from the upper grain storage chamber 8 to the lower grain drying chamber 10, the hot air generated from the hot air device 4 is ventilated to the drying chamber 10 for drying, and the moisture content of the grain being dried is also increased. The moisture sensor 2 for detecting the moisture content is provided, and the detected grain moisture content is compared with the finishing target moisture content set by the operation of the moisture content setting device 35 provided in the operation device 15. In the grain dryer for performing the above, the finishing target moisture is set to the moisture setting device 35 during the drying process.
When the setting is changed to OFF by the operation of, the drying operation time is managed while subtracting the expected drying end time, and displayed, and when the remaining drying time reaches 0 hour with the timer 63, the drying of the grain is stopped and controlled. The drying stop system is characterized in that

Further, even if the finishing grain moisture is written in the non-volatile memory 62 of the operation operating device 15 and the power of the operation operating device 15 is turned off, the setting content is stored and the finishing target moisture is set to the moisture. When the setting is changed to OFF by operating the setting device 35, this data is stored in the nonvolatile memory 62.
Not being written to the non-volatile memory, the initial value that is set and held separately is written to the non-volatile memory 62, and when the detected grain moisture reaches the initial value, the drying of the grain is stopped and controlled. The system configuration.

[0008]

The function of the present invention is that the grains stored in the grain storage chamber 8 of the grain dryer are fed from the storage chamber 8 through the grain drying chamber 10 and are circulated while flowing down, while hot air generated from the hot air device 4 is blown. Is dried by being exposed to the hot air as it passes through the drying chamber 10, and the moisture content of some of the grains being dried is detected by the moisture sensor 2. By the operation of the moisture setting device 35 provided in the device 15, the finish target moisture set is compared, and when the detected grain moisture reaches the finish target moisture, it is detected that the drying is completed, and the dryer is automatically stopped. Then, the drying of the grain is stopped.

[0009] The scheduled drying end time of the grain is calculated from the detected moisture content of the grain at the start of the drying and the target finishing moisture. It is displayed on the device 15. Further, this scheduled drying end time is subjected to subtraction processing, and the remaining drying time after the subtraction processing is displayed. During the drying operation, when the finish target moisture is set to OFF by the operation of the moisture setting device 35,
The target finish water content is changed to off (no setting), and the remaining drying time obtained by subtracting the expected drying end time
When it is detected that 0 hour has been reached,
Depending on time, the dryer is automatically stopped and controlled, and the drying of the grain is stopped.

The finishing target moisture set by the operation of the moisture setting device 35 is written in the nonvolatile memory 62 of the operation operating device 15, and the power of the operation operating device 15 is turned on.
Even if the FF operation is performed, the setting contents are stored. During this drying operation, when the finishing target moisture is changed to OFF by the operation of the moisture setting device 35, the finishing target moisture is changed to OFF (no setting), and this setting data is written in the nonvolatile memory 62. Instead, the separately set and held initial value is written in the non-volatile memory 62, and the written initial value is compared with the grain moisture detected by the moisture sensor 2 to detect the detected grain moisture. When the initial value is reached, it is detected that the drying is finished, the dryer is automatically stopped and controlled, and the drying of the grain is stopped.

[0011]

As described above, according to the present invention, when the moisture setting device 35 for accidentally setting the finishing target moisture during the drying of the grain is changed to OFF and the finishing target moisture is cut off (no setting), Although the automatic stop due to the grain moisture value is not performed, the scheduled drying end time calculated by the detected grain moisture and the finish target moisture is subtracted, and this subtracted remaining drying time is set to 0 hour by the timer 63. When it arrives, the drying of the grain is stopped, so that the grain is not overdried even when the automatic stop due to the moisture value of the grain is not performed.

Even when the power source of the operation device 15 is turned off, the set finishing target moisture is stored in the non-volatile memory 62, and the moisture setting device 35 is set to erroneously set the finishing target moisture during the grain drying. When the setting is changed to OFF and the target finishing moisture is cut off (no setting), the changed data is not written in the nonvolatile memory 62.
The initial value of the setting memory is separately written. If the moisture setting device 35 is erroneously operated and a finish target moisture cutoff (no setting) is written, the operation operating device 15
When the power is turned on again, the finishing target moisture is set to OFF (not set). Therefore, if the setting of the finishing target moisture is forgotten, re-drying is required unless the timer 63 is set. I can't start, but I was able to solve this problem.

[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.
It shows a state in which a hot air device 4 having a moisture sensor 2 for detecting the moisture of the grain and a burner 3 for generating hot air is installed.

The dryer 1 has a rectangular shape that 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 a grain is provided below the ceiling plate 7. A grain storage chamber 8 for storing grains is formed, and a front window 9 for visually detecting the amount of the loaded grain is formed on the front machine wall 5 forming the storage chamber 8.
Is provided. The grain drying chambers 10 and 10 are provided below the storage chamber 8 between the left and right air exhaust chambers 11 and 11 and the central air blowing chamber 12. The pay-out valves 13 for paying-out and paying out are respectively rotatably supported.

The grain collecting trough 14 rotatably supports a transfer spiral, and is provided below the drying chambers 10 and 10 to communicate with each other. The burner 3 of the hot air device 4 is a burner case 1
The burner case 14 ′ is provided inside the front machine wall 5 so as to be detachably attached to the front side of the front machine wall 5 so as to correspond to the inlet side of the blower chamber 12 on the front side of the front machine wall 5. 3. A front operating device wall 5 is detachably provided with a driving operation device 15 for starting and stopping the moisture sensor 2 and the dryer 1 for each work of loading, drying and discharging.

The exhaust fan 16 has an exhaust passage chamber 17 which is provided on the rear machine wall 5 so as to communicate with the left and right exhaust chambers 11, 11.
It is provided on the central rear side exhaust duct 18, and on the rear side machine wall 5,
An exhaust fan motor 19 for rotating the exhaust fan 16 is provided. The valve motor 20 includes the delivery valves 13, 1
3 is rotationally driven via a 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 '.
The fuel inside is sucked and supplied to the burner 3.
The blower 23 is provided on the outer side of the upper plate, is rotationally driven at a variable speed by a blower motor 24 for shifting, and blows combustion air corresponding to the amount of supplied fuel to the burner 3 by the blower 23.

The diffusion plate 25 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, and evenly diffuses the grains to the storage chamber 8. I'm giving back. The grain-raising machine 26 is provided outside the front side machine wall 5 and has a belt with a bucket conveyor 27 stretched inside thereof, and the upper end portion thereof has a throw-out cylinder 28 between the transfer gutter 6 and the starting end portion. A rice grain 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 14 and the communication. ing.

The grain elevator motor 31 rotationally 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 14, 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 while being conveyed to the upper portion, and while crushing and crushing the grains, the water content of the crushed grains is detected.

The operation device 15 has a box shape, and the dryer 1, the moisture sensor 2, the burner 3 and the like are put on the surface plate of the box body, and the operation is started for each operation of drying and discharging. Each starting operation device 33, stop operation device 34 for stopping operation, moisture setting device 3 for setting the finishing target moisture of the grain
5. Display lamps 36 for each moisture content, grain type setting device 37 for setting the temperature of hot air generated from the burner 3, display lamps 38 for each type, stake amount setting device 39, display lamps 40 for each stone number A moisture correction setting device 41, timer increase / decrease setting devices 42 and 43, a buzzer stop device 44, a display unit 45 for digitally displaying various display items, and a monitor display lamp 46 are provided. The operating devices 33, 34, the setting devices 35, 37, 39, 41, 42, 43, and the buzzer stop device 44 are push-button type on / off switches.

The control device 47 is provided in the driving operation device 15, and detects the paddy current sensor 29, inputs digital sensor information, the operation devices 33 and 34, the setting devices 35, 37 and 39, respectively. 41, 42, 43 and digital input circuits A, 4 to which the operation of the buzzer stop device 44 is input
8. Input of analog sensor information and the moisture sensor 2,
An analog input circuit 49 to which a detection value detected by the hot air temperature sensor 48 'is input, an A / D conversion circuit 50, a serial data transmission circuit 51, digital input circuits B and 53 to which a memory clear 52 is input, and each of these circuits 48. , 49, 50,
Dryer control microcomputer 54 and memory 55 that perform arithmetic logic operations and comparison operations on various inputs from 51 and 53, output circuit A in response to commands from this dryer control microcomputer 54,
The motors 19, 20, 31 and the like are controlled to start and stop via 56, and the fuel valves are controlled via output circuits B and 57.
Starting the fuel pump 21 and the blower motor 24,
Stop and adjustment control, start and stop control of the moisture motor 32 via the output circuits C and 58, start and stop control of the buzzer 60 and the timer 63 via the output circuits D and 59, and control via the display circuit 64 The display unit 45 is configured to display and control various items and includes a serial data receiving circuit 61, a non-volatile memory 62, and the like, and a timer 63 is provided in the driving operation device 15.

Drying stop control by the controller 47 is performed as follows. That is, the start operation device 33 for starting the drying of the grain is turned on (step 101), and if NO is detected, the process returns to step 101. When YES is detected, the motor system output of each of the motors 19, 20, 31 and the like is turned on (step 102), and the combustion system of the fuel valve, the fuel pump 21, the blower motor 24 and the like is turned on (step 103). The grain moisture is detected by the moisture sensor 2 (step 104), and the moisture setting device 35.
The finishing target moisture set by the operation is read (step 105), and the moisture setting device 35 is turned off (no setting).
Is detected (step 106), and if NO is detected, the expected drying end time is calculated (step 107), and the expected drying end time is displayed on the display unit 45 (step 10).
8) The moisture value of the detected grain detected by the moisture sensor 2 is compared with the target moisture value for finishing set by the moisture setting device 35 (step 109), and the moisture value of the detected grain is the same as the set target moisture value for finishing. Or, the following is detected (step 110), and if NO is detected, the process returns to step 104.
When YES is detected, the fuel valve and the fuel pump 21
The combustion system of the blower motor 24 and the like is turned off (step 111), and the motor system of the motors 19, 20, 31 and the like is further turned off (step 112).

If YES is detected in step 106, it is detected whether there is a scheduled drying end time (step 113), and Y
When ES is detected, the expected drying end time is set as the drying time (step 114), the drying time is subtracted (step 115), and the moisture sensor 2 performs grain moisture detection processing (step 116). Setting device 35
The finishing target moisture set by the operation is read (step 117), and the moisture setting device 35 is turned off (no setting).
Is detected (step 118), and when NO is detected, the remaining dry time is cleared (step 119), and step 1
Proceed to 07.

When NO is detected in step 113, a fixed value is set as the drying time (step 120), and the process proceeds to step 115. If YES is detected in step 118, it is detected whether the remaining dry time is 0 hour (step 121), and if ON is detected, the process returns to step 115.
When YES is detected, the combustion system of the fuel valve, the fuel pump 21, the blower motor 24, etc. is turned off (step 122), and the motors 19, 20, 3 are further turned on.
The motor system such as 1 is turned off (step 123). The remaining dry time detected in step 121 is set to 0.
The time may be changed to, for example, one hour.

Further, the setting target moisture set by the operation of the moisture setting device 35 is read (step 201),
It is detected whether or not the moisture setting device 35 is OFF (no setting) (step 202), and if NO is determined, the read target moisture setting value is determined as data (step 20).
3) The data is written in the nonvolatile memory 63 as data (step 204).

If YES is detected in step 202, the initial value (constant value) of the setting memory is determined to be data (step 205), and the process proceeds to step 104. When the power of the operation device 15 is turned on during the above work, data is read from the non-volatile memory 63 (step 20).
6), the set value of the finish target moisture setting is displayed and output (step 207).

The operation of the above embodiment will be described below. Each setting device 35, 37, 39 of the drive operating device 15,
By operating 41, 42, 43 and the like to set predetermined items and operating the starting operation device 33 for starting the drying operation, each part of the grain dryer 1, the burner 3 of the hot air device 4 and the moisture sensor 2 are operated. Etc. are started, the set hot air is generated from the burner 3, and the hot air is blown from the blower chamber 2 to each of the grain drying chambers 10, 1.
After passing through 0, it is sucked and exhausted by the exhaust fan 16 through the exhaust chambers 11, 11 and the exhaust passage chamber 17.

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 10 and 10, and then fed by the feeding valves 13 and 13. It is fed to the lower part and flows down, and is transferred from the grain collecting gutter 14 through the supply gutter 30 into the grain raising machine 26 by the lower transfer spiral, and is supplied 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 moisture set by operating the moisture setting device 35, it is detected that the drying is completed and the control is performed. The dryer is automatically controlled by the device 47 to automatically stop the dryer 1, and the drying of the grain is stopped. Based on the detected grain moisture detected by the moisture sensor 2 at the start of this drying operation and the finishing target moisture set by the operation of the moisture setting device 35, the scheduled drying end time of the grain is calculated, and this is calculated. The expected drying end time and the detected grain water content are displayed on the display unit 45 of the operation device 15. Further, this scheduled dry end time is also subjected to subtraction processing, and the remaining drying time after the subtraction processing is similarly displayed.

During the drying operation, when the finishing target moisture is set to OFF by the operation of the moisture setting device 35, the finishing target moisture is changed to OFF (no setting), and the scheduled drying end time is set. When the timer 63 detects that the remaining dry time which has been subtracted has reached 0 hours, the timer 63 automatically controls the dryer 47 to automatically stop the dryer 1 by controlling the timer 63 to dry the grain. Is stopped.

The finishing target moisture set by the operation of the moisture setting device 35 is written in the nonvolatile memory 62 of the control device 47 of the operation operating device 15, and even if the power of the operation operating device 15 is turned off. The setting contents are stored. During the drying operation, when the finishing target water content is changed to OFF by the operation of the water content setting device 35, this data is not written to the non-volatile memory 62 but is set to an initial value (constant value) which is separately set and held. Value) is written to the non-volatile memory 62, the written initial value is compared with the detected grain moisture, and when the detected grain moisture reaches the initial value, it is detected that the drying of the grain has ended, and The controller 47 automatically controls and the dryer 1 is automatically stopped, and the drying of the grain is stopped.

[Brief description of drawings]

 The figure shows an embodiment of the invention.

FIG. 1 is a block diagram.

FIG. 2 is a flowchart.

FIG. 3 is a flowchart.

FIG. 4 is an overall side view of a grain dryer.

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

FIG. 6 is an enlarged front view in which a part of the grain dryer is partially broken.

[Explanation of symbols]

 2 Moisture Sensor 4 Hot Air Device 8 Grain Storage Room 10 Grain Drying Room 15 Operation Device 35 Moisture Setting Device 62 Nonvolatile Memory 63 Timer

Claims (2)

[Claims] 1. The hot air generated from the hot air device 4 is blown into the drying chamber 10 to dry it while the grains are being fed from the upper grain storage chamber 8 to the lower grain drying chamber 10 and flowing down. The moisture sensor 2 for detecting the moisture content of the inside grain is provided,
Drying is performed in a grain dryer that performs an automatic stop process of drying and a display of a scheduled finish time of drying by comparing the detected grain moisture and the finishing target moisture set by the operation of the moisture setting device 35 provided in the operation device 15. When the setting target moisture is changed to OFF by the operation of the moisture setting device 35 on the way,
A drying stop method characterized by controlling the drying operation time while subtracting the expected drying end time and displaying and controlling the drying of the grain when the remaining drying time reaches 0 hour by the timer 63. 2. The hot air generated from the hot air device 4 is blown into the drying chamber 10 to dry it while the grains are being fed from the upper grain storage chamber 8 to the lower grain drying chamber 10 and flowing down. The moisture sensor 2 for detecting the moisture content of the inside grain is provided,
In the grain dryer for automatically stopping the drying process and displaying the scheduled drying end time by comparing the detected grain moisture and the finishing target moisture set by the operation of the moisture setting device 35 provided in the operation device 15. The finishing target moisture is written in the non-volatile memory 62 of the operation operating device 35, and the setting contents are stored even if the power of the operating operating device 15 is turned off, and the finishing target moisture is operated by the moisture setting device 35. OF
When the setting is changed to F, this data is not written to the non-volatile memory 62, but an initial value that is separately set and held is written to the non-volatile memory 62 and the detected grain moisture reaches the initial value. A drying stop method characterized by stopping and controlling the drying of grains.