JP6299387B2 - Grain dryer - Google Patents

Description

  The present invention relates to a grain dryer that includes an information display unit and can grasp the dry state of the koji.

Since the grain dryer described in Patent Document 1 includes an information display unit and can display the distribution of moisture during the drying operation in a graph, the degree of moisture unevenness as well as the degree of drying of koji in the drying process is quantitatively determined. Therefore, it is possible to adjust the related work according to the prospect of the post-process based on the information of the drying process.
This information display section

Japanese Patent No. 3687272

  However, in the pause process in which the grain dryer is paused and the dried soot is kept in the machine for a certain period of time, the grain circulation system necessary for displaying the information on the operation panel and measuring the moisture distribution stops, and information about the dried soot is obtained. Since it was made blank, there was a problem that the prospect of the post-process based on the present situation of dry rice cake was uncertain.

  It is an object of the present invention to provide a grain dryer that can provide moisture value information of a dry koji in a pause process of koji drying.

The invention according to claim 1 is provided with an information display unit (32) for displaying the moisture distribution of the grain by measuring the moisture content of the drying target grain for one circulation in the machine body, and displaying the grain drying state during the drying operation. In the dryer, the drying operation is suspended while maintaining the display of the information display unit (32) for the measurement result performed immediately before the suspension of the drying operation , and the drying operation and its A soot drying mode is provided to control the pause for drought, and when the predetermined intermediate moisture value is reached by the drying operation and when the moisture value near the predetermined target is reached, the drying operation is paused. The configuration is such that, when the drought drying mode is selected by the grain type setting switch (SW6), the automatic setting and the manual setting can be switched to set the pause time for stopping the drying operation. In the case of the above automatic setting, the standard resting time calculated from the amount of grain applied, the initial moisture value and the moisture distribution is applied, and in the case of the above manual setting, the set resting time by the user is set. It is characterized by applying .

  According to a second aspect of the present invention, in the first aspect of the present invention, during the suspension of the drying operation, moisture measurement is performed together with one circulation operation at regular intervals, and the measurement result is displayed in the information display section (32 ) Is reflected and displayed.

According to the first aspect of the present invention, the information display unit (32) displays the moisture distribution in the machine body by measuring the moisture content of one cycle of the dried cereal, thereby displaying the grain drying state during the drying operation. In addition, when the drying operation is suspended, the display by the moisture measurement performed in advance is maintained, so that the operator can grasp the moisture state when the drying operation is stopped even during the drying operation suspension.
In addition, by applying the soot drying mode, when the predetermined intermediate moisture value is reached by the drying operation and when the predetermined near target moisture value is reached, the drying operation is stopped respectively. Since the whitening of the cocoon is promoted by setting the target moisture value to +1 to 2%, the dry quality of the cocoon can be ensured.
In addition, when dredging is selected with the grain type setting switch (SW6) during dredging, it is possible to switch between automatic setting and manual setting for the suspension specification of the drying operation. High quality dryness can be ensured by appropriate pause specifications without complicated calculation by selection, time can be applied, and manual setting allows handling of moths with characteristic differences based on empirical rules Therefore, it is possible to deal with a wide range of drying of koji across various varieties.

  According to the invention according to the second aspect, in addition to the effect of the invention according to the first aspect, it is possible to grasp a change in moisture distribution during rest.

Grain dryer cutting side view Front view with part cut of grain dryer Front view of operation panel Control block diagram Graph showing moisture content distribution of sample grains Moisture value display form on the display Stop time setting procedure chart Example of sleep setting

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
First, based on FIG.1 and FIG.2, the whole structure of the circulation type | mold rice bran and grain dryer which implements this invention is demonstrated.
Reference numeral 1 denotes a machine frame of a dryer. In the machine frame 1, a storage chamber 2, a drying chamber 3, and a grain collection chamber 4 are sequentially arranged from the upper side to the lower side. In the drying chamber 3, grain flow passages 9, 9 are formed, a radiator 6 facing the burner 5 is disposed inside the grain flow passages 9, 9, and between the adjacent grain flow passages 9, 9. Left and right exhaust chambers 8 and 8 leading to the fan body of the suction fan 7 are disposed, and feeding valves 10 and 10 are provided at the lower end joining portion of the grain flow passages 9 and 9, and by reciprocating rotation of the feeding valves 10 and 10, The grain is made to flow down while being fed out by a predetermined amount, and the grain is soaked in hot air to be dried.

  On the outer side of the machine frame 1, an elevator 11 is erected so that the grains collected on one side of the front and rear sides of the grain collection room 4 are returned to the storage room 2. In this elevator 11, a bucket belt 13 is wound around a driving pulley 12 a and a driven pulley 12 b that are vertically pivoted, and the dried grain is transferred to the front and rear side by a lower conveying device 14 provided at the bottom of the cereal collection chamber 4. 11 is configured to cereal. Grains that have been cerealed by the elevator 11 are supplied to the starting end side of the upper conveying device 16 from the threshing spout of the elevator 11, and are further fed laterally by the upper conveying device 16 to be disposed in the upper central portion of the storage chamber 2. It is configured to be sent to the rotating diffusion plate 18 to be diffused and dropped into the storage chamber 2.

  The grain circulation system composed of the elevator 11, the lower transport device 14, and the upper transport device 16 is driven by an elevator motor (not shown) disposed on the upper frame of the elevator 11. In addition, an intake port (not shown) is provided in a wall portion of the elevator 11 in the middle of the upper and lower portions, and an interval between the ascending stroke and the descending stroke of the bucket belt 13, and a moisture meter 26 is provided below the intake port (not shown). Is detachably disposed. This moisture meter 26 is, for example, a known one that compresses and pulverizes sample grains one by one between a pair of electrode rolls, and electrically converts the resistance value into a moisture value for each grain. .

Next, the grain drying of the dryer will be described.
A predetermined amount of grain is put into the storage chamber 2 by using the elevator 11 from a holding hopper (not shown). Next, the grain type, the dry finish moisture value, etc. are set and the drying operation is started. Grains in the storage chamber 2 flow down the drying chamber 3 and are fed to the cereal collection chamber 4 while taking hot air. The grain warmed by the radiant heat of the radiator 6 while flowing down in the grain collection chamber 4 is transferred to one side by the lower transport device 14, and then cerealed by the elevator 11, taken over by the upper transport device 16, and stored again. 2 to be circulated and transferred. When the finishing moisture value is reached while repeating such a process, the drying operation is finished.

Next, the operation panel 31 of the dryer will be described with reference to FIG.
On the panel surface of the operation panel 31, the tension switch SW0 for inserting the grain, the ventilation drying switch SW1, the drying switch SW2 for starting the burning operation by starting the combustion of the burner 5, and the grains in the storage chamber 2 outside the machine. A discharge switch SW3 for discharging, a stop switch SW4 for stopping various driving of the machine and stopping a buzzer, a grain type setting switch SW6 for selecting a grain type for drying, a moisture value setting switch SW7, and a tension amount for setting a tension amount Setting switch SW8, timer increase switch SW9 for increasing / decreasing drying time, decrease switch SW10 for decreasing drying time, various operation switches of emergency stop switch SW11, display unit 32 for digitally displaying various display items, various abnormalities of the dryer An abnormality display monitor 33 or the like is provided.

  Further, on the left side of the grain type setting switch SW6, a grain type display part 34a for displaying the grain types of glutinous (ordinary) rice cake, glutinous rice cake and wheat, and the grains and wheat of the grain type display part 34a. Grain display device 34b corresponding to the drying mode (which is composed of a display lamp, but may be composed of a light emitting diode, a liquid crystal display device, etc.) is provided. Each time the grain type setting switch SW6 is turned on, a plurality of drying modes of potatoes or wheat in the grain type display unit 34a are selected, and the corresponding grain display device 34b is turned on.

  Further, on the left side of the moisture value setting switch SW7, moisture is composed of a moisture value display unit 35a for displaying a moisture value, and moisture value display devices 35b corresponding to a plurality of moisture value displays of the moisture value display unit 35a. A setting display device 35 is provided. Each time the moisture value setting switch SW7 is turned on, the moisture value of the moisture value display unit 35a is sequentially switched, and the corresponding moisture value display device 35b is lit. Further, a moisture value control cut-off switch 38 that stops moisture value control and enables only timer drying control is provided at the right end portion of the moisture value display devices 35b,.

  Further, on the left side of the extension amount setting switch SW8, an extension amount display unit 36a for displaying the extension amount, and an extension amount display device 36b corresponding to a plurality of extension amount displays of the extension amount display unit 36a. ,... Is provided. Each time the extension amount setting switch SW8 is turned on, the extension amount of the extension amount display section 36a is sequentially switched, and the corresponding extension amount display device 36b is lit.

Next, a control block configuration will be described with reference to FIG.
A controller (CPU) 41 is provided in a control box 45 provided above the burner wind tunnel 25. Various switches and sensors are connected to the input side of the controller 41. On the input side of the controller 41, an extension switch SW0, a ventilation drying switch SW1, a drying switch SW2, a discharge switch SW3, a stop switch SW4, a timer increase switch SW9, a timer decrease switch SW10, and an emergency stop switch 11 are connected. Further, an outside air temperature sensor SE1, a hot air temperature sensor SE2, an exhaust air temperature sensor SE3, a moisture meter electrode temperature sensor SE4, a moisture sensor SE5, and the like are connected via an input circuit.

  The controller 41 is connected with a grain type setting switch SW6, a moisture value setting switch SW7, and an overhang amount setting switch SW8 via an input circuit, and also with a grain display device of the grain type setting display device 34 via an output circuit. 34b,..., Moisture display devices 35a,... Of the moisture setting display device 35, and tension amount display devices 36b,.

  Further, on the output side of the controller 41, an air blower motor M1, an elevator motor M2, a feed valve motor M3, a burner combustion system burner fan motor (not shown), a burner vaporizing cylinder motor (not shown), fuel are connected to the output side of the controller 41. A display that connects a supply electromagnetic pump (not shown), a fuel valve (not shown), an igniter (not shown), a moisture meter motor (not shown), and digitally displays various display items via an output circuit. The unit 32 is connected to an abnormality display monitor 33 for displaying various types of abnormality in the dryer.

  The burner drive signal of the controller 41 includes an ON / OFF signal and a large / small supply signal of an electromagnetic pump (not shown), a rotation speed command signal of a burner vaporizing cylinder motor (not shown), a rotation speed command signal of a burner fan motor (not shown), There is an energization signal or the like of an igniter (not shown), and the fuel supply amount, the combustion air supply amount, and the vaporizing cylinder rotational speed are controlled synchronously to vaporize and burn the liquid fuel.

  Also, during the drying operation, the hot air set temperature preset and stored is compared with the hot air temperature detected by the hot air temperature sensor SE2, and the electromagnetic waves for fuel supply that are periodically turned on so as to reduce the difference are compared. The drying operation is performed while changing the on-time signal of a pump (not shown) to be longer or shorter, and when the grain moisture reaches the target moisture value, the drying operation is stopped.

Next, the grain type selection of the controller 41 will be described.
The grain type setting switch SW6 is operated to determine whether the rice cake is set to be glutinous rice cake, wheat cake or wheat, and if it is determined to be the potato type setting, the grain type setting switch SW6 is turned on by the operation. In the case of rice cake, the drying speeds “slow”, “normal”, “fast” of the grain display device 34b of the grain type setting display device 34 are sequentially switched, and the corresponding grain display device 34b is lit, In the case of rice cake, the rice cake display device 34b of rice cake rice cake lights up.

  When the grain type setting is read and it is determined that the wheat type is set, the “wheat”, “barley” in the grain type display unit 34a of the grain type setting display device 34 is turned on by turning on the grain type setting switch SW6. While sequentially switching to “beer wheat (not shown)”, the corresponding grain display device 34b is lit.

  Next, the setting control of the drying target moisture value accompanying selection of straw or wheat will be described. First, it is determined whether the glutinous rice cake, glutinous rice cake setting, or wheat setting, and in the case of the glutinous rice cake setting, the moisture content setting switch SW7 is turned on to turn on the moisture value setting switch SW7. A moisture value of 5% to 17% is sequentially selected, and when a predetermined time elapses after the moisture value setting switch SW7 is turned off, the selected moisture value is set and written to the memory 42.

  If the glutinous rice cake is set, then, the moisture value setting switch SW7 is turned on to select a moisture value of, for example, 14% or less, which is the mochi rice target moisture value region, and after the moisture value setting switch SW7 is turned off. When the predetermined time has elapsed, the selected moisture value is set and written in the memory 42.

  In addition, it is determined whether it is glutinous rice cake, glutinous rice cake setting, or wheat setting. If the setting is wheat setting, then the moisture value setting switch SW7 is turned on to set the target moisture value region of wheat, for example 12 .0% to 16% are sequentially selected, and when a predetermined time elapses after the moisture value setting switch SW7 is turned off, the selected moisture value is set and written to the memory 42.

  According to the above configuration, when a dry cereal type of glutinous rice cake, glutinous rice cake or wheat is selected, a moisture value may be selected and set from a limited target moisture value region corresponding to the cereal type. The value setting operation can be simplified.

Next, the drying control by the moisture value control switch 38 will be described with reference to FIG.
The moisture setting display device 35 of the operation panel 31 is provided with a moisture value control off switch 38. This moisture value control cut-off switch 38 corresponds to the low moisture drying operation of wheat and the additional drying operation of straw. When the moisture value control cut switch 38 is turned on, the moisture value drying stop control is stopped. Only the timer drying control for setting the drying time by the timer is changed. In this state, even if the tension switch SW0, the ventilation drying switch SW1, or the discharge switch SW3 is turned on, the tensioning work, the ventilation drying work, and the grain discharging work are not shifted to. Then, the increase switch SW9 and the decrease switch SW10 are operated to set the drying time by timer control, the drying switch SW2 is turned on to start the drying operation, and when the set drying time is finished, the drying operation is automatically stopped, The drying operation ends when the stop switch SW4 is turned on.

  In addition, when the moisture value control switch 38 is turned off, the state returns to the automatic drying mode in which moisture value stop drying control or timer drying control is possible, and the target moisture value setting state before the moisture value control switch 38 is turned on. It is the structure returned to.

  In the standby state in which the moisture value control switch 38 is OFF, the moisture value of the moisture display unit 5a of the moisture setting display device 35 is 11, 12, 12.5, 13 each time the moisture value setting switch SW7 is turned on. 13.5, 14, 14.5, 15, 15.5, 16, 17, 18% and the moisture value setting switch SW7 are sequentially switched, and the corresponding moisture value display device 35b is turned on each time. When the moisture value setting switch SW7 is ON, every time the moisture value setting switch SW7 is turned ON, the moisture value of the moisture setting display device 35 is 11, 12, 12.5, except for the moisture value setting switch SW7. It is sequentially switched to 13, 13.5, 14, 14.5, 15, 15.5, 16, 17, 18%, and the moisture value display device 35b is turned on each time.

  In the conventional configuration, since there is no cut mode for moisture value drying stop control in the automatic drying mode, if the moisture content is below the target moisture value of 12%, for example, when drying wheat, etc., the drying operation is immediately performed by the stop control by the moisture meter. Stopped, and there was a problem that it could not be dried to a desired moisture value of 12% or less.

  However, according to the above-described configuration, it is possible to shift from the moisture value stop drying control to the timer drying control by a simple operation of turning on the moisture value control cut-off switch 38. This can solve the above problems. If the moisture value control switch 38 is turned OFF to return to the automatic drying mode, it returns in the state set to the finishing target moisture value at the previous work, so there is no need to set the target moisture value again. Operation can be simplified.

Next, a description will be given of a measure for improving the accuracy of the glutinous rice hulling rate (whitening rate) during glutinous rice bran drying.
During the drying operation of glutinous rice, the drying operation is not stopped when the average moisture value of the predetermined number of sample grains reaches the target moisture value, but the average moisture value of the predetermined number of sample grains reaches the target moisture value of 14%, for example. When the number of sample grains that have reached the target moisture value exceeds a predetermined ratio, the drying operation is stopped.

  In the drying of mochi-mochi, it is more important that the drying finish (whitening) than stopping the drying operation in accordance with the target moisture value. Since the condition of whitening of glutinous rice has only been found to be a moisture value of 14% or less, if drying is advanced and the moisture value is reduced too much, problems such as shell cracking may occur. Moreover, since it is necessary to visually confirm the whitening degree of glutinous rice, it takes time and effort. Moreover, even if the average value of the target moisture value is 14% or less, the number of grains that are whitened may increase if the variation is wide. It is intended to eliminate such problems.

  Applicant has obtained test data on the rate of leakage of glutinous rice cake for Kurenai mochi. That is, in the total moisture value, when the finished moisture value is in the 14% range, the whitening ratio is about 75% to 80%, but when the drying is performed to the mid 13% range, the whitening ratio reaches 90%. That is, if the moisture value at the single grain level is 14% or more, the hull rate is lowered.

  Thus, the moisture value is measured with the single-grain moisture meter 26, and when the number of particles having a moisture value of 14% or less in the total number of sample particles is 90 to 80%, for example, it is determined that the target moisture value has been reached, The drying operation is stopped.

  Further, as shown in FIG. 5A, the moisture value of the number of sample grains is distributed in a narrow range of 13% to 15%, and there is a mountain of moisture value distribution at 14%, and 14% When the grain having the following moisture value exceeds a reference ratio (for example, 90 to 80%), the drying operation is stopped.

  In addition, as shown in FIG. 5B, the moisture value of the number of sample grains is distributed in the range of 13% to 15%, and the moisture value distribution peaks at 13% and 15%, and there is variation over a wide range. In addition, even if the number of grains having a moisture value of 14% or less exceeds the reference ratio, the drying operation is not stopped and the drying is stopped for a predetermined time (hot air drying is stopped and the suction fan 7 is driven). And stop after the moisture value is made uniform.

  Further, when the moisture value is measured for each sample grain having a moisture value of 18%, for example, immediately after the start of the drying operation or immediately after the start of the drying operation, if the variation is large, it is determined that the hulling rate is low, and the hot air drying operation is stopped. The drying operation is stopped for a predetermined time, or the drying is performed by ventilation, or the feeding time of the left and right feeding valves 10 and 10 is changed to be longer and shorter to mix the grain layer of the storage chamber 2 while keeping the moisture content. Eliminate the dispersion of values, and then start hot air drying. By doing in this way, the accuracy of the hull rate can be improved.

  Further, the standard deviation of the moisture value of the sample grain is also used as a stop factor for the drying control, and the drying operation is finished when the measurement data near the target moisture value is “standard deviation α <predetermined value” and the average moisture value is 14% or less. By doing so, the accuracy of the hull rate can be improved.

  In addition, when the moisture value during the drying operation becomes “measured moisture value ≦ target moisture value + 1.5%”, the moisture value is measured by narrowing the time interval of moisture value measurement, and the measurement data near the target moisture value is “ Even when the hot air drying operation is terminated when the standard deviation α <predetermined value ”and the average moisture value is 14% or less, the accuracy of the hull rate can be improved.

  Also, when the moisture value of the drying operation becomes “measured moisture value ≦ target moisture value + 1.5%”, the moisture value measurement is performed with the time interval of moisture value measurement narrowed, and the measurement data near the target moisture value is “standard” When “deviation α> predetermined value” and the average moisture value is 14% or less, the hot air drying operation is stopped and the drying operation is stopped for a predetermined time, or the drying operation is performed for a predetermined time, or the predetermined time is exceeded. Even if the feeding time of the left and right feeding valves 10 and 10 is changed to be longer or shorter, the dispersion is eliminated while mixing the grain layer of the storage chamber 2, and then the drying operation is finished, the accuracy of the hull rate Improvements can be made.

  Further, when the drying is stopped, the hot air generating burner 5 is stopped, and then the time until the suction fan 7 is driven for a predetermined time and stopped is set to, for example, 4 minutes in the mochi mochi drying mode. In the mode, for example, a short period of 2 minutes is used. Then, when the discharge switch SW3 is turned on and the grain is discharged, the grain is discharged while driving the suction fan 7 in the case of the dry rice drying mode, and the drive of the suction fan 7 is stopped in the case of the rice cake drying mode. .

  According to the above-described configuration, the grain temperature after completion of drying of rice cake can be quickly cooled and immediately transferred to the rice hulling operation while the operation is simplified, and the grain temperature after completion of rice cake drying is high. If held at, the hull rate can be promoted.

  Further, in the rice cake drying mode, when the drying is stopped, the burner 5 is stopped, and then when the suction fan 7 is driven for a predetermined time to stop, the hot air generated by the burner 5 is sent to the radiator 6 to generate far infrared rays. In the type in which the grain is dried while being used, the temperature of the radiator is detected by a radiator temperature sensor (not shown), and when the radiator is cooled to a temperature at which no malfunction occurs, the driving of the suction fan 7 is stopped. Configure. According to the said structure, while simplifying operation, the cereal temperature after completion | finish of mochi rice bran can be kept comparatively high, the movement of a water | moisture content can be accelerated | stimulated, a moisture value can be equalize | homogenized, and a hull rate can be promoted.

  In the rice cake drying mode, when the drying is stopped, the burner 5 is stopped, and then when the suction fan 7 is driven and stopped for a predetermined time, the hot air temperature sensor SE2 detects the hot air temperature and the outside air temperature sensor. The outside air temperature is detected by SE1, and when the difference between the outside air temperature and the hot air temperature becomes, for example, 10 degrees or less, the driving of the suction fan 7 is stopped. According to the said structure, while simplifying operation, the grain temperature after completion | finish of mochi rice bran drying can be kept comparatively high, the movement of a water | moisture content can be accelerated | stimulated, a moisture value can be equalize | homogenized, and a hull rate can be promoted.

  In the rice cake drying mode, when the drying is stopped, the burner 5 is stopped, and after that, the suction fan 7 is driven for a predetermined time to stop and finish the drying operation. Even if it is configured to increase the grain temperature by increasing the grain temperature and then stop the burner 5 and then drive and stop the suction fan 7 for a predetermined time, the grain temperature is increased and moisture is transferred. Promoting and making the moisture value uniform can promote the rate of fracture.

  In the rice cake drying mode and the rice cake drying mode, when the drying operation is stopped, the burner 5 is stopped, and then the suction fan 7 is driven for a predetermined time to stop the drying operation. The time required for one circulation is calculated from the loading amount using a predetermined calculation formula. The operator can set how many times to circulate and finish the drying operation with a setting switch (not shown), and the driving time of the suction fan 7 can be set longer or shorter. According to the said structure, a drying operation | work can be complete | finished with the grain temperature suitable for the rice cake drying mode or the rice cake drying mode.

(Moisture display)
Next, display of moisture will be described.
The display form of the information display unit 32 provided in the operation panel 31 of the grain dryer is such that, as shown in FIG. Display the variation of the graph. By measuring the moisture value of the drying target cereal that circulates in the machine body, the degree of variation of the entire dry cereal can be easily grasped by the width and height.

  The detected average moisture value is displayed in a line at the corresponding position on the above graph (16.3% in the figure), and the drying target moisture value (14.5% in the figure) is displayed as a line. The difference from the moisture value to the target value can be easily grasped as the distance between the lines.

  With the above display, it is possible to grasp the drying process during the drying operation including the variation in the moisture value of the whole grain, and when the drying operation is suspended, the measurement result immediately before the suspension is displayed on the information display unit 32. By maintaining the display during the stop of the drying operation, it is possible to grasp the moisture state before the stop of the drying operation, and based on this, it is possible to determine the prospect of the post-process.

  In addition, during the suspension of the drying operation, moisture measurement is performed along with one circulation operation at regular intervals, and the measurement result is reflected and displayed on the information display unit 32, thereby grasping the change in moisture distribution during the suspension. can do.

(Drying)
For drying cocoons, a cocoon drying mode is provided to control the drying operation and its suspension, and when a predetermined intermediate moisture value is reached by the drying operation, a predetermined target moisture value is set. Each control is configured to pause the drying operation when it is reached.

  By applying the drought drying mode, the drying operation stops when the predetermined intermediate moisture value is reached by the drying operation and when the predetermined moisture value near the target is reached. Since the whitening of the cocoon is promoted by setting the moisture value to +1 to 2%, the dry quality of the cocoon can be ensured.

  The whitening rate of the cocoon is calculated as a number rate where the measured moisture value with respect to the total number of moisture measurements is 14.5% or less, and the whitening rate can be displayed alternately using a 7-segment display for moisture value display By doing so, it becomes possible to perform dry quality control of koji based on the quantification of experience values.

  In addition, a whitening rate can be ensured by providing an increase / decrease switch so that the setting of the moisture value near the target can be adjusted, and the drying operation is suspended at the moisture value near the target corresponding to the variety of grapes. It is possible to cope with various varieties of grapes having different characteristics in whitening standards.

  Next, regarding the setting of the rest time in the koji drying mode, as shown in the setting procedure chart in FIG. 7, following the selection of the kneading drying mode by the grain type setting switch SW6 of the operation panel 31, automatic setting and manual setting are performed. The setting can be switched by the touch panel type information display unit 32 or the like.

  In the case of automatic setting, as shown in FIG. 8 as a specific calculation example for each condition of the grain dryer, a standard rest time calculated from the amount of filling, initial moisture value, and moisture distribution is applied. In the case of manual setting, a pause time arbitrarily set by the user, including the presence or absence of a pause, is applied.

  As described above, when the cocoon drying mode is selected by the grain type setting switch SW6 during the cocoon drying, it is possible to switch between the automatic setting and the manual setting for the suspension specification of the drying operation. By selecting a setting, a pause time that can ensure high-quality drying can be ensured by an appropriate pause specification without requiring complicated calculations. Since it becomes possible, it is possible to deal with a wide range of drying of cocoons across various varieties.

  Moreover, another setting method is explained about the rest time at the time of drying the paddy. The rest timing is set to two times of moisture values of 18% and 15%, and the rest time is arbitrarily variable 1 input (for example, 6 hours).休止 Drying operation so that each pause time is equally divided (3 hours each), and in addition to this, the pause time is extended by 1 hour each time the number of irregularities increases by the size of the moisture irregularity Configure the control.

  By the soot drying operation control having the above-described configuration, it is possible to set a pause time by a simple one input without requiring troublesome handling associated with each time setting for setting of two pause steps in consideration of moisture unevenness. For this reason, it is possible to easily perform fine optimum soot drying that eliminates moisture unevenness by an effective familiarizing action associated with two pause steps.

1 Grain dryer 32 Information display SW6 Grain type setting switch

Claims (2)

In the grain dryer which includes the information display part (32) which displays the moisture distribution of the grain by measuring the moisture of the grain to be dried for one circulation in the machine body, and which displays the grain drying state during the drying operation,
The drying operation is suspended while maintaining the display of the information display unit (32) for the measurement result performed immediately before the suspension of the drying operation , and
A drying mode for controlling the drying operation and its suspension is provided, and when a predetermined intermediate moisture value is reached by the drying operation and when a predetermined target moisture value is reached, It is configured to stop the drying operation,
When the dredging mode is selected by the grain type setting switch (SW6), the automatic setting and the manual setting can be switched between the automatic setting and the automatic setting for setting the pause time for stopping the drying operation. In this case, the standard resting time calculated from the amount of grain overlaid, the initial moisture value and the moisture distribution is applied, and in the case of the above manual setting, the set resting time set by the user is applied. Features grain dryer.   The grain according to claim 1, wherein moisture measurement is performed together with one circulation operation at regular intervals while the drying operation is suspended, and the measurement result is reflected and displayed on the information display unit (32). Dryer.