JPH06331269A - Stopping system of operation of grain drier - Google Patents

Abstract

PURPOSE:To conduct a stop and an end of a halt without changing a prescribed time set in a forced-air drying operation and a halt operation to a 0 time. CONSTITUTION:Displays of a forced-air stop and a halt end are given in a display means 32 of an operating device 15 during the forced-air drying operation and a halt operation, and the stop of air and the end of a halt are effected when a function setting means 33d on the lower side of these displays is operated to be OFF. According to this constitution, operations for the stop of air in the course of the forced-air-during operation and the end of the halt in the course of the halt operation are facilitated.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a grain dryer is started by operating each function setting means of an operating device to set various items and operating the function setting means for starting a drying operation. While the grains stored in the grain storage chamber are circulated by being drawn out from this storage chamber to the grain drying chamber and being circulated, the dry hot air generated from the hot air device passes through the drying chamber, thereby The grain is exposed to the dry hot air and dried.

Before starting the drying operation, the function setting means is operated to set a ventilation drying operation in which outside air is blown into the drying chamber to dry, or the function setting means is operated to perform the drying operation. When a pause operation for suspending the drying operation is set in the above, the ventilation drying operation is performed as the ventilation drying operation for a set predetermined time, and the pause operation is stopped for the set predetermined time. The stop and stop of these operations are stopped and stopped after a preset time has elapsed, or the operation is stopped and stopped when the preset time is changed to 0 hours by operating the function setting means. It was a method.

[0004]

The respective function setting means of the operating device are operated to set various operating conditions, various drying conditions, etc., and the start of the drying operation is started by the function setting means indicated as dry. By operating the grain dryer,
While the grains stored in the grain storage chamber are circulated by being drawn out from this storage chamber to the grain drying chamber and being circulated, the dry hot air generated from the hot air device passes through the drying chamber, thereby The grain is exposed to the dry hot air and dried.

Before the start of the drying operation, the function setting means is operated to set the ventilation drying operation in which the outside air is ventilated into the drying chamber to dry the hot air until the set predetermined time ends. By the outside air that is stopped and passes through the drying chamber, the circulating grains are exposed to the outside air and dried. Further, when the function setting means is operated to set the pause operation for stopping the drying operation during the drying operation, the dryer is stopped and the drying of the grain is stopped when the set predetermined time is completed.

When the dryer is stopped or the rest is finished by the end of the predetermined time set during the ventilation drying operation or the rest operation, the function setting means is operated to set. When the predetermined time is changed to 0 hour, the dryer is stopped or the rest is finished. During the ventilation drying operation and the rest operation, the stop and stop of the dryer can be stopped and stopped without operating the function setting means to change the set predetermined time to 0 hours. It aims to be easy and easy to operate.

[0007]

According to the present invention, the drying hot air generated from the hot air device 3 is applied to the drying chamber 9 while the grains are being fed from the upper grain storage chamber 8 to the lower grain drying chamber 9 and flowing down. An operating device 15 is provided for ventilation and drying, and an operating device 15 for operating the operating device 15 is provided. The operating device 15 has a display means 32 capable of displaying setting items such as operating conditions and drying conditions, and setting and setting of multiple functions. A plurality of function setting means 33a, 3 to be changed
3b, 33c, 33d, and a stop means 34 for stopping, and setting of a ventilation drying operation in which outside air is ventilated into the drying chamber 9 to dry before the hot air drying operation, or a pause operation in which the drying operation is suspended in the middle In the grain dryer capable of setting the above, the display means 32 during ventilation drying operation and idle operation
Is displayed on the screen of the function setting means 33d, which is operated when terminating these operations, by displaying ventilation stop, stop of ventilation, etc.
The operation stop method is characterized by stopping the steps of the ventilation drying operation and the rest operation by the operation of.

[0008]

The function setting means 33a of the operating device 15,
33b, 33c, 33d are operated to set various operating conditions and various drying conditions, and the drying operation is started by operating the function setting means 33b displayed on the drying and display means 32. The grain dryer starts and the grain storage chamber 8
While the grains accommodated therein are fed from the storage chamber 8 to the grain drying chamber 9 and are circulated while flowing down, the dry hot air generated from the hot air device 3 passes through the drying chamber 9 to be circulated. The grain is exposed to the dry hot air and dried, and when the moisture content of the grain being dried reaches the finishing target moisture content, the dryer automatically stops.

Before the start of the drying operation, the function setting means 33
When the air-drying operation is performed by operating c to ventilate the outside air into the drying chamber 9 for drying, the drying hot air is stopped and passes through the drying chamber 9 until the set predetermined time ends. By the outside air, the circulating grains are exposed to the outside air and dried. Further, when it is desired to stop the ventilation drying operation while the predetermined time set during the ventilation drying does not end, by turning off the function setting means 33d at the place where the ventilation stop is displayed on the display means 32, The dryer is stopped and the ventilation drying operation is stopped.

When the function setting means 33c is operated to stop the drying operation and set the rest operation, the dryer is stopped and the drying of the grain is stopped until the set predetermined time is finished. . Further, when it is desired to end the resting operation while the resting operation is not completed for the set predetermined time, the function setting means 3 at the position where the end of resting is displayed on the display means 32.
By turning off 3d, the resting operation of the dryer is completed.

[0011]

According to the present invention, when it is desired to stop the ventilation drying operation or to terminate the suspension operation during the ventilation drying operation and the suspension operation, the display means 32 displays the ventilation stop and the suspension end. This can be done by turning off the function setting means 33d at various places, which makes the operation easier.

[0012]

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 moisture sensor 2 for detecting the moisture of the grain and a burner 4 of a hot air device 3 for generating hot dry air are attached.

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 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. Grain drying room 9,
In the lower side of the storage chamber 8, 9 is the exhaust chambers 10 on the left and right sides,
10 is provided between the blower chamber 11 and the central blower chamber 11, and below these drying chambers 9 and 9, a feeding valve 1 for feeding and flowing down the grains is provided.
2 are rotatably supported respectively.

The grain collecting trough 13 rotatably supports a transfer spiral and is provided below the drying chambers 10 and 10 to communicate with each other.
The burner 4 of the hot air device 3 is installed inside the burner case 14, and the burner case 14 is attached to and detached from the outer surface of the front machine wall 5 so as to correspond to the inlet side of the blower chamber 11 on the front side of the front machine wall 5. An operation device 15 for freely starting and stopping the dryer 1, the moisture sensor 2 and the burner 4, and starting and stopping each operation of drying and discharging is detachably provided on the front machine wall 5.

The exhaust fan 16 is provided on the rear machine wall 5 on the central rear side exhaust cylinder 18 of the exhaust passage chamber 17 provided so as to communicate with the left and right exhaust chambers 10, 10. An exhaust fan motor 19 that rotationally drives the exhaust fan 16 is provided in the No. 5.
The valve motor 20 rotationally drives the delivery valves 12 and 12 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, and the fuel in the fuel tank 22 is sucked by the fuel pump 21 to be supplied to the burner 4. Blower 23
Is provided on the outer side of the upper plate and is rotationally driven at a variable speed by a fan motor 24 for speed change so that combustion air corresponding to the supplied fuel amount is blown by the fan 23 to the burner 4.

The diffusion board 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 to uniformly diffuse and reduce the grains to the storage chamber 8. ing.
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 an upper end has a throw-out cylinder 28 between it and the starting end of the transfer gutter 6. The lower end is provided with a supply gutter 29 between the terminal end of the grain collecting gutter 13 and the lower end thereof.

The grain elevator motor 30 is used for the bucket conveyor 2
The belt with 7 and the transfer spiral in the transfer gutter 6 and the transfer spiral in the diffusing plate 25 and the grain collecting gutter 13 are rotationally driven. The moisture sensor 2 is provided substantially in the central portion in the vertical direction of the grain raising machine 26. The moisture sensor 2 rotates the moisture motor 31 in response to the transmission of an electrical measurement signal from the operating device 15 and causes the take-in roll 29 '. Is driven to rotate, and this take-in roll 29 '
By the guide plate 30 'and the guide plate 30', the grains falling during the upper conveyance by the bucket conveyor 27 are received, and the grains are fed one by one and supplied to the pair of detection rolls 31 ', 31' on the lower side. For example, 32 grains are sandwiched and crushed between the detection rolls 31 'and 31', and a resistance voltage value for each grain at the time of this crushing is detected.
The average value of the resistance voltage of 32 grains is detected, 32 grains are further detected 3 times, the average resistance voltage value of 3 times is detected, and this is the detected grain moisture value of 1 time. The conversion is performed, and the coefficient when converting the detected resistance voltage value to the moisture value is different depending on the type of grain to be detected.

The operating device 15 has a box shape, and a display means 32 for displaying various items, for example, in a liquid crystal form on the surface plate of the box body. Below the display means 32, various kinds of the dryer 1 are provided. Multiple push-button type O for setting functions
N-OFF switch function setting means 33a, 33b, 3
3c, 33d and stop means 34 for stop operation are provided, and various functions set by operating these function setting means 33a, 33b, 33c, 33d are displayed on the display means 32.

The function display of these function setting means 33a, 33b, 33c, 33d before the start of each work of loading, drying and discharging is displayed on the loading, drying, discharging and changing and display means 32 as shown in FIG. ing. Also, these function setting means 33a, 33b for setting the grain type, the drying mode, etc.
The functional displays of 33c and 33d are displayed on the display means 32 as grain, mode, change and return as shown in FIG.

The control device 35 is provided in the operating device 15,
Digital input circuit (A) 3 into which the detection input of the paddy flow sensor 36, the input of digital information, the operation of each function setting means 33a, 33b, 33c, 33d and the stopping means 34 are input.
7. Digital input with analog input information 39, analog input circuit 39 into which the detection by the moisture sensor 2 and hot air temperature sensor 38 is input, A / D conversion circuit 40, serial data transmission circuit 41, and memory clear 42 Input circuit (B) 43, these input circuits 37, 39, 40, 4
The dryer control microcomputer 44 and the memory 45 which perform arithmetic logic operation and comparison operation on the inputs from 1, 43, and the output circuit (A) 46 in response to a command from the dryer control microcomputer 44.
To control the start and stop of the exhaust motor 19 via the output circuit (B) 47, to control the start and stop of the valve motor 20 and the grain elevator motor 30 via the output circuit (B) 47, and via the output circuit (C) 48 to the fuel valve and fuel pump. 21 is started, stopped and adjusted, the blower motor 24 is started, stopped and adjusted via the output circuit (D) 49, and the moisture motor 31 is started and stopped by the output circuit (E) 50. Various items are controlled to be displayed on the display means 32 via 51, and a serial data receiving circuit 52 and a non-volatile memory 53 are provided.

The types of dried grains are the following four types. (A) Speed drying in which the drying hot air temperature is controlled so that the drying is performed at the same speed as the set drying rate. (B) Pause drying in which the operation is paused by setting the initial operation time, the pause time, and the hot air drying time. (C) Constant temperature drying in which drying is performed while maintaining the hot air temperature for drying set according to the amount of grain and the type of grain. (D) When the variation in the moisture content of the detected grains at the start of drying is equal to or more than the predetermined value, the dry hot air is dried after the pre-air drying operation in which the outside air is passed through the drying chamber 9 for drying for a predetermined time. Hot-air drying is performed to pass through the chamber 9, and when the moisture content of the grain reaches a predetermined moisture content, the variation in moisture content of the grain is detected again. When the variation in moisture content of the detected grain is equal to or more than a predetermined value, the operation is stopped for a predetermined time. There are four types of good quality rice dried, and any one of these four types is selected to dry the grain.

Various displays on the display means 32 by the control device 35 are configured as follows. When high quality rice drying is selected and the detected grain moisture variation is equal to or more than a predetermined value, the ventilation drying operation is started and the control is performed as described below, and at the same time, the configuration is displayed as shown in FIG. 1, for example. That is, it is detected whether or not the front draft drying operation is in progress (step 10
1), if NO is detected, the process returns to step 101 and YE
When S is detected, the front draft drying operation screen is displayed (Fig. 1
(Step 102), it is detected whether the ventilation drying operation time is 0 hour (Step 103), and if NO is detected, the lower function setting unit 33b displayed as setting confirmation on the display unit 32 is operated. Detected as ON (Step 10
4) If NO is detected, the function setting means 33d on the lower side, which is displayed on the display means 32 as "ventilation stopped", is operated and turned on.
Is detected (step 105), and if YES is detected, the outputs of the fuel valve of the combustion system, the fuel pump 21, the blower motor 24, etc. are turned on to start the hot air drying operation (step 106), and the display means 32 is displayed. Is a configuration in which the hot air drying screen is displayed (step 107).

If YES at step 103, the process proceeds to step 106, and if YES at step 104.
When S is detected, the ventilation drying operation time setting screen is displayed (step 108), the ventilation drying time is changed, and when the lower side function setting means 33d indicated to return to the display means 32 is operated and turned on, the step is performed. The configuration is returned to 102 (step 109). When NO is detected in step 105, the process returns to step 102.

Further, when the above pre-ventilation drying operation is finished and the hot air drying operation is started, and the grain moisture reaches a predetermined moisture during this hot air drying operation, grain moisture variation is detected again,
When the variation in the moisture content of the detected grain is equal to or more than a predetermined value, the rest operation is started and the control is performed as described below, and at the same time, the display is made as shown in FIG. 2, for example. That is, it is detected whether or not the vehicle is at rest (step 201), and if NO is detected, the process returns to step 201, and if YES is detected, the halt operation screen is displayed (as in FIG. 2) (step 202), and the halt operation time is set. Is detected for 0 hours (step 203), NO
If it is detected that the function setting means 33b on the lower side, for which setting confirmation is displayed on the display means 32, is operated to detect ON (step 204), and if NO is detected, the display means 3 is displayed.
3d, the lower side function setting means 33d displayed as the end of rest
Is operated and ON is detected (step 205), and YE
When S is detected, each motor of the motor system 19, 20, 3
The outputs of 0, 31 and the like are turned on (step 206), subsequently the outputs of the fuel valve of the combustion system, the fuel pump 21, the blower motor 24 and the like are turned on and the hot air drying operation is restarted (step 207), and the display is made. A hot air drying screen is displayed on the means 32 (step 208).

When YES is detected in step 203, the process proceeds to step 206, and in step 204 YE
When S is detected, the resting operation time setting screen is displayed (step 209), the resting operation time is changed, and the display means 32 is displayed.
When the function setting means 33d on the lower side indicated by "return to" is operated and turned on, the process returns to step 202 (step 210). When NO is detected in step 205, the process returns to step 202.

Drying control and display control when selecting good quality rice drying by the control device 35 are configured as follows. That is, it is detected that the quality rice is dried (step 301), and if NO is detected, the process returns to step 301,
If YES is detected, it is detected whether or not the front draft drying operation is being performed (step 302). If YES is detected, the front draft drying operation screen is displayed on the display unit 32 (step 303), and the front draft drying operation time is 0 hours. Is detected (step 30)
4) If NO is detected, the function setting means 33d on the lower side, which is displayed as ventilation stop on the display means 32, is operated to detect ON (step 305), and if NO is detected, the process returns to step 303, When YES is detected, the outputs of the fuel valve of the combustion system, the fuel pump 21, the blower motor 24, etc. are turned on and the hot air drying operation is started (step 30).
6), the moisture sensor 2 detects the grain moisture (step 3
07), it is detected whether or not the moisture content of the detected grain is less than or equal to a predetermined moisture content (step 308). If NO is detected, the process returns to step 307, and if YES is detected, the fuel valve of the combustion system, the fuel pump 21, and the blower Output of motor 24 etc. is OFF
(Step 309), and subsequently each motor 1 of the motor system
The output of 9, 20, 30, 31 and the like is turned off to start the rest operation process (step 310), and the display means 3 is displayed.
The rest operation screen is displayed in step 2 (step 311), and it is detected whether the rest operation time is 0 hour (step 312), and NO.
If it is detected that the function setting means 33d on the lower side, which is displayed on the display means 32 as the end of rest, is operated to detect whether it is ON (step 313), and if NO is detected, step 3
Returning to step 11, if YES is detected, the outputs of the motors 19, 20, 30, 31 of the motor system are turned on (step 314), and then the fuel valve of the combustion system, the fuel pump 21, and the blower. The output of the motor 24 or the like is turned on and the hot air drying operation is restarted (step 315).

If NO is detected in step 302, it is detected whether or not the vehicle is at rest (step 316), and if NO is detected, the process proceeds to step 307. When YES is detected, the process proceeds to step 311. YES in step 304
If YES is detected in step 312, the process proceeds to step 306. If YES is detected in step 312, the process proceeds to step 314.

The grain type set during drying is wrong, and the lower side function setting means 33 displayed as "changed" on the display means 32.
When c is operated and the grain type is changed during drying, the control of the grain moisture detection by the control device 35 is performed as follows. For example, the grain type set before the change is wheat grain, and if this is changed to paddy grain, when the grain type is wheat grain, the detected resistance voltage value (A) when crushed under pressure between the detection rolls 31 ′ and 31 ′ The moisture value conversion coefficient (× 1) for the set and stored barley grain was added to the bolt to calculate the moisture value of the barley grain, but the grain type changed from the grain to the grain during the drying process. When changing to, add the moisture value conversion coefficient (× 2) for the rice grain set and stored to the resistance voltage value (A) volt of the wheat grain that was detected and stored before this change time. Then, the water content of the grain is calculated.

As a result, conventionally, once collected data is canceled when the grain type is changed,
With the above configuration, the data collected last time can be used as it is, and thereby the time until display can be shortened. Moisture value of wheat grain = Resistance voltage value of wheat grain detected (A) x Moisture value conversion factor of wheat grain (× 1) Replacement of moisture value before changing from grain grain to paddy grain is as follows: Paddy grain moisture value = wheat grain Detected resistance voltage value (A) × Hull grain moisture value conversion coefficient (× 2) Detected moisture value after changing from grain grain to grain grain is as follows: Hull grain moisture value = Rice grain detection resistance voltage value (B) × Rice grain moisture value conversion coefficient (× 2) Hereinafter, the operation of the above embodiment will be described.

When the grain dryer 1 starts to dry the grain, the function setting means 33a, 33b, 3 of the operating device 15 are used.
Operate 3c and 33d to select the grain type, target finish moisture,
Set the dry type and other various items. The type of drying set by operating the function setting means 33b is, for example, high quality rice drying, and the function setting means 33 for starting the drying operation is started.
When b is turned on, the dryer 1, the moisture sensor 2 and the like are started, and the grains in the grain storage chamber 8 are fed from the storage chamber 1 into the grain drying chambers 9 and 9, respectively. At 12, 12, it is fed to the lower part and flows down, from the grain collecting gutter 13 to the supply gutter 29.
Via the transfer spiral of the lower part into the grain elevator 26,
It is conveyed to the upper part by the bucket conveyor 27 and is supplied into the transfer gutter 6 through the ejecting cylinder 28. From the transfer gutter 6 to the diffusion board 2
5 is supplied by the transfer spiral of the upper part,
Then, it is uniformly diffused and reduced into the storage chamber 8 and circulated and dried.

Grains falling from the bucket conveyor 27 during the circulation are received by the feeding roll 29 'and the guide plate 30' of the moisture sensor 2, and these feeding roll 29 'and the guide plate 3 are received.
0'and the particles are picked up one by one, and the detection rolls 31 ', 3
1 ', is crushed under pressure between these detection rolls 31', 31 ', the water content of the crushed grain is detected, and the variation of the grain water is detected from the moisture content of the detected grain. When the particle moisture variation is equal to or greater than the set and stored predetermined value, the outside air flows through the drying chambers 9 and 9 and flows down in the drying chambers 9 and 9 for the set and stored predetermined time. The pre-ventilation drying operation in which the inside grains are exposed to the outside air and dried is performed until the set predetermined time ends, and the dryer 1 stops. When the pre-ventilation drying operation is stopped and the dryer 1 is stopped before the predetermined time set in the pre-ventilation drying operation ends, the display means 32 of the operating device 15 is used.
Turn off the function setting means 33d on the lower side, which is displayed as ventilation stop
The FF operation is performed to stop the dryer 1.

When the above-mentioned predetermined ventilation drying operation is finished for a predetermined time, each part of the dryer 1, the burner 4, the moisture sensor 2, etc. are restarted, and the set dry hot air is generated from the burner 4, and this drying is performed. The hot air is passed through the drying chambers 9, 9 from the air blowing chamber 11, passes through the air exhaust chambers 10, 10 and the air exhaust passage chamber 17, and is sucked and exhausted by the air exhaust unit 16 to perform hot air drying operation. The grain accommodated in the storage chamber 8 is exposed to the dry hot air while it is flowing down from the storage chamber 8 into the drying chambers 9 and is dried, and the grains are delivered to the lower portion by the feeding valves 12 and 12. It is fed out and flows down, and is fed from the grain collecting gutter 13 through the supply gutter 29 to the inside of the grain raising machine 26 by the lower transfer spiral, is conveyed to the upper part by the bucket conveyor 27, and is transferred to the inside of the transfer gutter 6 via the ejection cylinder 28. Is supplied from the transfer gutter 6 onto the diffusion plate 25 by an upper transfer spiral, and is evenly diffused and reduced into the storage chamber 8 by the diffusion plate 25 and circulated and dried.

The moisture content of the grain during the hot-air drying operation is detected by the moisture sensor 2 in the same manner as described above. When the detected moisture content of the grain reaches the set and stored predetermined moisture content, the moisture content of the detected grain is changed. When the grain moisture variation is detected, and the detected grain moisture variation is equal to or greater than the set and stored predetermined value, the dryer 1 is stopped until the set and stored predetermined time ends. Be driven. To end the resting operation before the predetermined time set during the resting operation is finished, the lower side function setting means 33d, which is displayed as the end of resting on the display means 32 of the operating device 15, is turned off. Then, the rest operation of the dryer 1 is terminated.

When the moisture content of the grain during the hot air drying operation detected by the moisture sensor 2 is the same as the moisture content of the set finishing target, it is determined that the drying is completed, and the controller 35 automatically The dryer 1 is controlled to automatically stop, and the drying of the grain is stopped.

[Brief description of drawings]

 The figure shows an embodiment of the present invention.

[Figure 1] Enlarged view of front ventilation drying operation screen of operating device

[Figure 2] Enlarged pause operation screen display of operating device

FIG. 3 is an enlarged action diagram in which a part of the operating device can be broken.

FIG. 4 is an enlarged view of the operation device in which a part thereof can be broken.

FIG. 5: Block diagram

FIG. 6 is a flowchart.

FIG. 7: Flow chart

FIG. 8 is a flowchart

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

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

FIG. 11 is an enlarged perspective view of a part of the moisture sensor.

[Explanation of symbols]

 3 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

Claims (1)

[Claims] 1. A drying hot air blown from a hot air device (3) is blown into the drying chamber (9) while the grains are being fed from an upper grain storage chamber (8) to a lower grain drying chamber (9) and allowed to flow down. Also, an operating device 15 for driving operation is provided, and the operating device 1
5, a display unit 32 capable of displaying setting items such as an operating state and a drying condition, a plurality of function setting units 33a, 33b, 33c, 33d for setting and changing multi-functions, and a stopping unit 34 for stopping. In a grain dryer capable of setting a ventilation drying operation in which outside air is ventilated into the drying chamber 9 before the hot air drying operation to dry, or a pause operation in which the drying operation is stopped halfway is set. The screen display on the display means 32 during the operation and the rest operation is displayed by displaying the display of the function setting means 33d operated when ending these operations, such as ventilation stop, and the end of rest. By the operation of the function setting means 33d, the ventilation drying operation,
And an operation stop method characterized by stopping the step of the rest operation.