Displaying system for operation of grain dryer

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Industrial application field]

The present invention relates to an operation display method for a grain dryer.

【0002】

[Conventional technology]

Conventionally, a display means for displaying an operating state, drying conditions, etc. is provided on the surface of an operating device to be operated, and a plurality of display means for setting and changing settings are set and changed under the display means. The function setting means and the stop means for the stop operation are provided, and the screen display on the display means during the grain drying and the grain drying stop is displayed separately for each display item, but the combustion system before the grain drying is stopped. The screen display on the display means while the output was stopped (during post-purge) was an operation display method in which the same items as the screen display items during grain drying were displayed.

【0003】

[Problems to be Solved by the Invention]

When starting the drying work of the grains stored in the grain storage chamber of the grain dryer, operate each function setting means of the operation device to set various items such as grain type, finishing target moisture and drying mode. Then, by operating the function setting means for starting the drying operation, the dryer is started, and the grains are fed from the storage chamber to the grain drying chamber, flowed down and circulated, and generated from the hot air device. When it is dried by being exposed to dry hot air and the moisture content of the grains during drying becomes the same as the set finish target moisture content, the dryer is automatically stopped as the drying is completed.

【0004】

The screen display on the display means of the operating device during the above-mentioned grain drying operation and during the combustion system output stop (post-purge) before the grain drying is stopped is, for example, the drying hot air temperature, the current grain moisture, and the set finish target moisture. , Remaining drying time, moisture unevenness, etc. are displayed. In addition, the screen display on the display means, which is stopped after the grain drying is completed, displays grain moisture, select the next operation, and the like.

【0005】

Since the screen display is the same during the grain drying operation and when the combustion system output is stopped (post-purging) before the grain drying is stopped, it is difficult to know whether the dryer is in the stop process and when it will be stopped. However, we are trying to eliminate these.

【0006】

[Means for solving problems]

According to the present invention, an operating device is provided for drying by exposing the grains to the drying hot air generated from the hot air device 4 while feeding and flowing the grains from the upper grain storage chamber 8 to the lower grain drying chamber 9 and operating the operation device. A display means 32 capable of displaying setting items such as an operating state and a drying condition is provided on the surface of the operating device 15, and a multi-function is set and a setting is changed on the lower side of the display means 32. In a grain dryer provided with a plurality of function setting means 33a, 33b, 33c, 33d, and a stop operation 34 for stopping operation, during grain drying, during grain drying stop, and before grain drying stop. The screen display on the display means 32 when the output of the combustion system is stopped (during post-purging) is configured as an operation display method of the grain dryer, characterized in that each display item is displayed separately.

【0007】

INDUSTRIAL APPLICABILITY

When starting the drying work of the grains stored in the grain storage chamber 8 of the grain dryer, operate each function setting means 33a, 33b, 33c, 33d of the operation device 15 to determine the grain type and finish target. By operating the function setting means 33b for setting various items such as moisture and drying mode and starting the drying operation, the dryer is started and the grains are transferred from the storage chamber 8 to the grain drying chamber 9. While being fed down and circulated, it is dried by being exposed to the drying hot air generated from the hot air device 4, and when the moisture content of the grains during drying becomes the same as the set finishing target moisture content, the dryer considers that the drying is completed. Automatically stops.

【0008】

The screen display on the display means 32 of the operating device 15 during the grain drying operation displays, for example, the drying hot air temperature, the current grain moisture, the set finishing target moisture, the remaining drying time, the moisture unevenness, and the like. The screen display on the display means 32 while the combustion system output is stopped (post-purging) before the grain drying is stopped is now the grain moisture and the set finish target moisture. And, for example, it displays that the operation will stop after 4 minutes. In addition, the screen display on the display means 32, which is stopped after the grain drying is completed, displays grain moisture, select the next operation, and the like.

【0009】

[Effect of the invention]

By distinguishing the screen display between during grain drying and during combustion system output stop (post-purge) before grain drying is stopped, it is clear that the grain dryer has entered the stop processing process and the stop time. became.

【0010】

[Example]

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The example shows a state in which a circulation type grain dryer 1 for drying grains is equipped with a moisture sensor 2 for detecting the moisture content of grains and a hot air device 4 equipped with a burner 3 for generating dry hot air. Is.

【0011】

The dryer 1 has a rectangular shape that is long in the front-rear direction, and a transfer gutter 6 and a ceiling plate 7 in which a transfer spiral is rotatably installed are provided on the upper part of the machine wall 5, and grains are stored under the ceiling plate 7. The grain storage chamber 8 is formed. The grain drying chambers 9 and 9 are provided between the exhaust chambers 10 and 10 on both the left and right sides and the central blower chamber 11 on the lower side of the storage chamber 8, and the grains are placed in the lower part of the drying chambers 9 and 9. Each of the feeding valves 12 for feeding and flowing down is rotatably supported.

【0012】

The grain collecting gutter 13 rotatably supports a transfer spiral and is provided below each of the drying chambers 9 and 9 to communicate with each other. The burner 3 of the hot air device 4 is provided inside the burner case 14, and the burner case 14 is attached to and detached from the front side of the front machine wall 5 on the front side of the front machine wall 5 so as to correspond to the inlet side of the blower chamber 11. An operating device 15 is freely provided on the front machine wall 5 to start and stop the dryer 1, the moisture sensor 2, and the burner 3 for each operation of drying and discharging.

【0013】

The exhaust fan 16 is provided on the rear side machine wall 5, and is provided on the center rear side exhaust cylinder 18 of the exhaust passage chamber 17 provided to communicate with the left and right exhaust chambers 10 and 10, and is also provided on the rear side machine wall 5. , A blower motor 19 for rotating and driving the blower 16 is provided. The valve motor 20 rotationally drives the feeding valves 12 and 12 via a reduction mechanism.

【0014】

The fuel pump 21 has a fuel valve and is provided on the outside of the lower plate of the burner case 14. The opening and closing of the fuel valve is controlled by the ON time, and the fuel pump 21 sucks the amount of fuel in the fuel tank 22. Is controlled to supply the burner 3. The blower 23 is provided on the outside of the upper plate and is driven by a speed change blower motor 24 for speed change rotation, and combustion air corresponding to the amount of supplied fuel is blown to the burner 3 by the blower 23.

【0015】

As shown in FIG. 11, the rotation speed of the blower motor 24 of the blower 23 is adjusted by adjusting the wind adjustment ON time, and the level and inclination of the wind generated from the blower 23 are the wind adjustment volume (VR1). ) And (VR2) (not shown). The diffuser 25 is provided at the center of the bottom plate of the transfer gutter 6 in the front-rear direction under the supply port for supplying the transferred grains to the storage chamber 8, and the grains are evenly diffused and reduced to the storage chamber 8.

【0016】

The grain raising machine 26 is provided on the outer side of the front side machine wall 5, a belt with a bucket conveyor 27 is stretched inside, and a throwing cylinder 28 is provided at the upper end between the transfer gutter 6 and the starting end. At the lower end, a supply gutter 29 is provided between the gutter 13 and the end of the gutter 13 to communicate with each other. The grain-raising machine motor 30 rotates and drives a belt with a bucket conveyor 27, a transfer spiral in the transfer gutter 6, a diffuser 25, a transfer spiral in the grain collection gutter 13, and the like.

【0017】

The moisture sensor 2 is provided at a substantially central portion in the vertical direction of the grain raising machine 26, and the moisture sensor 2 rotates the moisture motor 31 by transmitting an electrical measurement signal from the operating device 15. Each part is rotationally driven, receives grains that fall during transportation to the upper part by the bucket conveyor 27, and detects the water content of the crushed grains while sandwiching and crushing the grains.

【0018】

The operating device 15 has a box shape, and a display means 32 for displaying various items on the surface plate of the box body, for example, in a liquid crystal format, and various functions of the dryer 1 are set on the lower side of the display means 32. Function setting means 33a, 33b, 33c, 33d of multiple push button type ON-OFF switches and stop means 34 for stop operation are provided, and various settings are made by operating these function setting means 33a, 33b, 33c, 33d. The function is displayed on the display means 32.

【0019】

The function display of these function setting means 33a, 33b, 33c, 33d before the start of each work of staking, drying and discharging is displayed on the staking, drying, discharging and changing and display means 32 as shown in FIG. Further, as shown in FIG. 6, the function display of these function setting means 33a, 33b, 33c, 33d when setting the grain type, the drying mode, etc. is displayed on the display means 32 as the grain, mode, change and return.

【0020】

The control device 35 is provided in the operation device 15, and is a digital input circuit (which is provided in the operation device 15 and inputs the detection input of the paddy flow sensor 36, the input of digital information, the operations of the function setting means 33a, 33b, 33c, 33d and the stop means 34 ( A) 37, input of analog sensor information, input of detection detected by moisture sensor 2 and hot air temperature sensor 38 Analog input circuit 39, AD conversion circuit 40, serial data transmission circuit 41, memory clear 42 are input digital Input circuit (B) 43, dryer control microcomputer 44 and memory 45 that perform arithmetic logic calculation, comparison calculation, etc. for inputs from these input circuits 37, 39, 40, 41, 43, and dryer control microcomputer 44. By command, the blower motor 19 is started and stopped controlled via the output circuit (A) 46, the valve motor 20 and the grain raising machine motor 30 are started and stopped controlled via the output circuit (B) 47, and the output circuit (C). The fuel valve and fuel pump 21 are started, stopped and adjusted and controlled via 48, the exhaust fan motor 24 is started, stopped and adjusted and controlled via output circuit (D) 49, and the moisture motor 31 is started, stopped and adjusted via output circuit (E) 50. Is started and stopped, and various items are displayed and controlled to the display means 32 via the display circuit 51, and is composed of a serial data receiving circuit 52, a non-volatile memory 53, and the like.

【0021】

The drying mode includes a high-quality drying control method in which the drying hot air temperature is set to a low temperature and dried for a long period of time, and a standard drying control method in which the drying hot air temperature is set according to the amount of grains and the type of grain to be dried. There are four types of methods, a pause drying control method that alternates between hot air drying and ventilation drying, and a drying rate control method that dries to a set drying rate. In the case of standard drying, there are three types of drying methods: high temperature drying, which dries at a high dry hot air temperature, normal drying, which dries at a standard dry hot air temperature, and low temperature drying, which dries at a low dry hot air temperature. There is.

【0022】

Hereinafter, the operation of the above embodiment will be described. By operating each function setting means 33a, 33b, 33c, 33d of the operation device 15, the operating state and drying conditions of various functions are set, and the function setting means 33b for starting the drying operation is operated. Each part of the grain dryer 1, the burner 3 of the hot air device 4, the moisture sensor 2, etc. are started, and dry hot air is generated from the burner 3, and this dry hot air is sent from the blower chamber 11 to each grain drying chamber 9, 9. After passing through, the air is sucked and exhausted by the exhaust fan 16 through the exhaust chambers 10 and 10 and the exhaust passage chamber 17.

【0023】

The grains housed in the grain storage chamber 8 are dried by being exposed to the dry hot air while flowing down from the storage chamber 8 into the drying chambers 9 and 9, and then moved to the lower part by the feeding valves 12 and 12. It is fed out, flows down, is transferred from the grain collecting gutter 13 to the grain raising machine 26 via the supply gutter 29 by the lower transfer spiral, is transported to the upper part by the bucket conveyor 27, is transported to the upper part, is passed through the dumping cylinder 28, and is inside the transfer gutter 6. It is transferred from the transfer gutter 6 onto the diffuser 25 by an upper transfer spiral, and is evenly diffused and reduced into the storage chamber 8 by the diffuser 25 to be circulated and dried.

【0024】

When the grain moisture detected by the moisture sensor 2 is the same as the set finish stop moisture, it is detected that the drying is completed, and the dryer 1 is automatically controlled by the control device 35. It is stopped and the drying of grains is stopped. At the time of this grain drying operation, the screen display on the display means 32 of the operation device 15 is displayed as follows.

【0025】

It is detected whether the function setting means 33b for starting the drying operation is ON (step 101), and when NO is detected, the process returns to step 101, and when YES is detected, the outputs of each motor 19, 20, 30, and 31 are turned ON (step 101). Step 102), the fuel valve of the combustion system, the fuel pump 21, and the blower motor 24 are turned on (step 103), and the drying hot air temperature during grain drying (a), the current moisture content, and the set finishing target moisture content are displayed on the screen (Fig.). 1) (Step 104), it is detected whether a certain period of time that has been set and stored has passed (Step 105), and if NO is detected, the process returns to Step 105, and if YES is detected, the grain is being dried (b). ) Remaining drying time and uneven moisture are displayed on the screen (Fig. 2) (step 106), and it is detected whether a certain time that has been set and stored has passed (step 107), and if NO is detected, the process returns to step 107. If YES is detected, it is detected that grain drying is completed (step 108), if NO is detected, the process returns to step 104, and if YES is detected, the fuel valve of the combustion system, the fuel pump 21, and the blower are detected. The output of the motor 24 was turned off (step 109), and the current moisture and set moisture were reached while the combustion system output was stopped (post-purging) before the grain drying was stopped. The operation is stopped after a predetermined time, for example, 4 minutes, but the screen is displayed (Fig. 3) (step 110), and it is detected whether the set and stored fixed time has passed (step 111), and NO is detected. Returning to step 111, when YES is detected, the outputs of the motors 19, 20, 30 and 31 are turned off (step 112), and the moisture stopped at the end of grain drying and the next work should be selected, but the screen is displayed. (Fig. 4) (step 113).

【0026】

As in the other embodiment of FIG. 12, when an abnormality occurs in the wind control path and this abnormality is detected, the processing is performed as follows. It is started (step 201), the wind condition ON time is calculated and output (step 202), the wind condition ON time is detected to increase (step 203), and it is set and stored as YES. It is detected whether the time, for example, 20 seconds has passed (step 204), when NO is detected, the process returns to step 202, and when YES is detected, the rotation speed of the blower 23 is increased or detected (step 205), and YES is detected. If it is detected, the process returns to step 202, and if NO is detected, the air volume adjusting device-related << blower 23, blower motor 24, etc. >> is regarded as abnormal, and an abnormality is notified, and the grain drying operation is performed by ventilation drying operation by outside air. Change to (step 206).

【0027】

When NO is detected in step 203, the wind condition ON time is reduced or detected (step 207), and when YES is detected, it is detected whether a certain period of time that has been set and stored has passed (step 208), and YES. When it is detected, the rotation speed of the blower 23 is reduced or detected (step 209), and when it is detected as NO, it is considered that the air volume adjusting device is abnormal, and an abnormality is notified, and the grain drying operation is performed by ventilation operation by outside air. Change to (step 210).

【0028】

If NO is detected in step 207 and step 208, and YES is detected in step 209, the process returns to step 202. Due to the above, even if the rotation of the blower motor 24 decreases due to a failure of the wind control unit and the blower motor 24, no abnormality occurs and combustion continues as it is, but in this case, the combustion state (efficiency) deteriorates. However, the abnormality of the air volume adjusting device is detected at an early stage, and the ventilation drying operation is possible.

【0029】

When it is detected that the dry hot air temperature does not increase or decrease even after a certain period of time has passed by increasing or decreasing the fuel valve ON time as in the other embodiment of FIG. 13, it is determined that the combustion path is abnormal. Then, it is performed as follows. It is started (step 301), the fuel ON time is calculated and output (step 302), the fuel ON time increase is detected (step 303), and it is set and stored as YES for a certain period of time, for example. It is detected if 10 minutes have passed (step 304), if NO is detected, the process returns to step 302, if YES is detected, the dry hot air temperature is increased or detected (step 305), and if YES is detected, the step is performed. Returning to 302, when it is detected as ON, it is considered that the combustion path relationship << fuel valve and fuel pump 21 etc. >> is abnormal, and an abnormality is notified and the grain drying operation is changed to ventilation drying operation by outside air (step 306). ).

【0030】

When NO is detected in step 303, the fuel ON time is reduced or detected (step 307), and when YES is detected, it is detected whether a certain period of time, for example, 10 minutes, which is set and stored, has passed (step 308). If YES is detected, the temperature of the dry hot air is reduced or detected (step 309), and if NO is detected, the combustion path relationship is abnormal and an abnormality is notified, and the grain drying operation is air-dried by outside air. Change to operation (step 310).

【0031】

If NO is detected in steps 307 and 308, and YES is detected in step 309, the process returns to step 302. As described above, an abnormality related to the combustion path such as a clogging of the fuel valve and a failure of fixing the intermediate voltage of the drive circuit of the fuel valve is detected at an early stage, and the ventilation drying operation is enabled.

【0032】

As in the other embodiments of FIGS. 14 and 15, function setting means 33a and 33b for checking the wind adjustment volumes (VR1) and (VR2) are provided, and these function setting means 33a and 33b are turned on to perform the operation. If the voltage does not change from around 0V or 5V even when VR1 and VR2 are operated, it is judged that the wind tone volume is abnormal, and the procedure is performed as follows.

【0033】

It is started (step 401), the wind tone volume check is detected (step 402), if NO is detected, it returns to step 402, if YES is detected, it is VR1 check or detected (step 403), and YES is detected. If it is set and stored, it is detected whether a certain period of time has passed (step 404), if it is detected as NO, it returns to step 402, and if it is detected as YES, it is detected whether VR1 has changed (step 405). If YES is detected, the process returns to step 402, if NO is detected, VR1 is detected as abnormal, VR1 is set to the midpoint of 2.5V (step 406), and the process returns to step 402.

【0034】

If NO is detected in step 403, it is detected as VR2 check (step 407), if it is detected as YES, it is detected whether a certain period of time that has been set and stored has passed (step 408), and if NO is detected, step Return to 402, if YES is detected, VR2 is detected as changed (step 409), if YES is detected, return to step 402, if NO is detected, VR2 is detected as abnormal, VR2 is 2.5. It is set at the midpoint of V (step 410) and returns to step 402.

【0035】

If NO is detected in step 407, the inspection is completed or detected (step 411), if NO is detected, the process returns to step 402, and if YES is detected, normal operation is started (step 412). Due to the above, even if the wind control volumes (VR1) and (VR2) fail in the open and short modes, they are corrected by the input value, so the combustion flame is in the lift state of red fire or blue fire. The dry operation could not be performed because there is a risk that it will become abnormal, but the inspection function of the wind adjustment volume (VR1) and (VR2) is provided, and if each does not change, it is considered abnormal and the correction should be performed at the intermediate point. Can be used for drying operation.

[Simple explanation of drawings]

The figure shows an embodiment of the present invention.

[Figure 1]

Grain drying of the operating device (a) Screen display diagram [Figure 2]

Screen display diagram during grain drying of the operating device (b) [Fig. 3]

Combustion system output of the operating device is stopped Screen display diagram [Fig. 4]

Screen display diagram during stop of grain drying of the operating device [Fig. 5]

Enlarged front view of the operating device [Fig. 6]

Enlarged front view of the operating device [Fig. 7]

Overall side view of the grain dryer that can partially break [Fig. 8]

Enlarged sectional view of AA in FIG. [Fig. 9]

Block Diagram [Fig. 10]

flowchart [Fig. 11]

Relationship diagram between wind condition ON time and blower rotation speed [Fig. 12]

A flowchart showing another embodiment. [Fig. 13]

A flowchart showing another embodiment. [Fig. 14]

A flowchart showing another embodiment. [Fig. 15]

FIG. 6 is a diagram showing an enlarged action screen display diagram of the operating device. [Explanation of symbols]

4 Hot air device 8 Grain storage room 9 Grain drying room 15 Operating device 32 Display means 33a Function setting means 33b Function setting means 33c Function setting means 33d Function setting means 34 Stopping means