JPS62182578A - Operation controller for cereal grain drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an operation control device for a grain dryer.

2. Description of the Related Art Conventionally, a dryer has been equipped with a loading switch for starting the rotation of each part of the dryer for each work stroke, a drying switch for drying work, and a discharge switch for discharging work. The dryer is started by operating these switches for each task, and the grains circulating in the drying chamber are exposed to heated air from the burner and dried.
There was no equipment to test run the dryer before each of these operations.

Problems to be Solved by the Invention By operating a tensioning switch, each part of the dryer required for the tensioning operation of storing grains in the dryer is started to rotate,
Once the grain has been loaded into the dryer, the dryer is temporarily stopped, and the drying switch is operated to start rotating each part of the dryer necessary for drying the grain. The grains housed in this dryer are repeatedly circulated downward in the drying chamber, while heated air from a burner is passed through the drying chamber, and the grains are exposed to this hot air to dry. A discharge switch is operated to start the rotation of each part of the dryer necessary for the discharge operation of discharging dried grains to the outside of the machine, and the dried grains in the dryer are discharged to the outside of the machine. With a grain dryer, it is not possible to perform a trial run of the dryer for each task before starting the actual operation, so for example, if the actual operation is started and there are no problems with the lining operation, but the drying When the process starts, if the temperature of the hot air generated by the burner is not accurately controlled, the grains cannot be dried and the grains become steamy, and this steaminess can reduce the quality of the grains. However, the purpose is to check the dryer in advance before the actual operation, so that it is possible to check in advance for defects that may occur after the actual operation starts.

Means for Solving the Problems This invention provides a drying method for drying grains by circulating heated air from a burner (2) while controlling the drying temperature, drying time, etc. while the grains are circulated in a drying chamber (1). In the grain dryer, the operation control device is configured to include a test run control device (3) that temporarily stops after a predetermined time period of test run by starting this drying control.

Effects of the Invention Before starting the actual operation, such as the tensioning work of storing grain in the dryer, the drying work of drying the loaded grain, and the discharge work of discharging the dried grains to the outside of the dryer, When performing a trial run, for example, by operating two of the start switches provided for each work process, the trial run control device (3) will cause the dryer to run for a certain period of time. The trial run control device (3) starts rotating the parts required for each operation in the order of operation, drying operation, and discharge operation, and after a certain period of time has elapsed, the diameter dryer is automatically stopped.

Effects of the Invention As described above, by providing the trial run control device (3), the parts of the dryer that are required for each task are started to rotate, so that each part of the dryer can be controlled in advance before the actual operation. For example, burner (2) can be checked.
), check whether each motor rotates normally, whether each sensor is operating normally, etc. can be checked before starting the actual operation. After the start of the process, there is a defective part that prevents the grain from drying, which causes the grain to become stuffy.
This steaming does not reduce the quality of the grain.

Embodiment In the illustrated example, the plate wall (5) of the dryer (4) is rectangular in plan view and consists of front and rear wall plates and left and right wall plates. This configuration is equipped with an operating piece N (6) that performs control such as stopping.

At the center of the lower part of the plate wall (5), a grain collection gutter (7) with a built-in transfer spiral is provided between the front and rear.
) On the upper side, drying chambers (1), (1) are provided in the vertical direction and communicated with each other, and at the bottom of the drying chambers (1), (1), there are feeding valves (8), (8) for feeding and flowing down the grains. The drying chamber (1) is rotatably supported, a hot air chamber (9) is formed inside the drying chamber (1), and a burner (2) is built in a burner case (10) provided on the front wall plate. ), and the drying chamber (1), (
1) and the left and right side plates, an air exhaust chamber (11) is formed and communicated with an air exhaust fan (12) provided on the rear wall plate. is provided with a temperature sensor (13) for detecting the temperature inside the hot air chamber (9), and motors (14) and (15) are provided at the bottom of the rear wall plate.
At 10, the transfer spiral in the grain collecting trough (7) and the exhaust fan (1
2), and the motor (15) rotates the delivery valves (8), (8) via a transmission (16).

A fuel pump (17) having a fuel valve is provided on the outer side of the lower plate of the burner case (lO).
) sucks fuel from a fuel tank (18), and this fuel pump (17) supplies fuel into the burner (2), and a blower (18 ) and a blower motor (20), the blower motor (20) rotationally drives the blower (19) to blow combustion air into the burner (2), and the burner case (10 ) An air volume sensor (21) for detecting the passage of outside air passing through the burner case (10) is provided on the inner side of the lower plate, and a flame sensor (22) for detecting combustion flame is provided at the front of the burner (2). ).

A storage chamber (35) is formed above the drying chambers (1), (1), and ceiling plates (23), (2) are formed above the storage chamber (35).
3) and a transfer gutter (20) with a built-in transfer spiral; a supply port is provided in the center of this transfer gutter (20) for supplying the transferred grains into the storage chamber (35); Diffuser (
25) is provided, and the grains are transferred to the storage chamber (25) using this diffusion plate (25).
35) It is configured to diffuse and reduce evenly into the storage chamber (
35) The upper part is provided with a storage capacity sensor (26) for detecting the amount of grains to be stored, and a valve (27) which can be opened and closed is provided at the starting end of the bottom plate of the transfer gutter (24). (2
7) is configured to open and close by operating a solenoid (28).

The grain raising machine (28) is attached to the front part of the front wall plate, and a bucket conveyor (30) belt is stretched between the upper and lower pulleys inside, and a belt is provided between the upper end and the starting end of the transfer gutter (24). A dispensing tube (31) is provided and communicated with the lower end and the grain collection gutter (7).
A supply gutter (32) is provided between the dispensing tube (31) and the dispensing tube (31).
A circulation sensor (33) is provided to detect grains passing through the grain elevator (28), and a motor (34) is provided on the upper side of the grain hoist (28), and this motor (34) moves the packet conveyor (30
) The belt, the transfer spiral in the transfer gutter (24), the diffusion plate (25), etc. are rotationally driven.

The operating device (6) is box-shaped, and the surface plate of the box has a tension switch (3B) for starting and stopping the dryer (4) for each operation, a drying switch (37), and a discharge switch (3B). ), a stop switch (38), a timer socket (40) for setting the drying time, a hot air temperature setting socket (41) for setting the hot air temperature, and a display window for displaying the hot air temperature (
42), and a control device (43) and a trial run control device (3) are provided inside the box.

The control device (43) and the test run control device (3) receive input from the operations of the switches (36), (37), (38), (38) and the swings (4o) and (41). each input circuit (44), (44), each sensor (21)
, an input circuit (45) into which the detection operations of (22), (28), and (33) are input; and an AD converter (4fl) that converts the detection value detected by the temperature sensor (13) from AD to AD.
, an input circuit (47) into which the converted value converted by this A-D converter (48) is input, and each of these input circuits (44)
A CPU (
4B), Cocy)c PU (48) The configuration includes an output circuit (49) that receives and outputs various commands issued by the yaw command, and these control devices (43) and (3) control the respective motors. (14), (15), (2o), and (34), and controls the starting and stopping of the fuel pump (14), (15), (2o), and (34).
7) and controls the starting and stopping of this fuel pump (17).
) is configured to control the number of opening and closing of the fuel valve,
It is also configured to operate the solenoid (28).

The control device (43) starts the rotation of each of the motors (14) and (34) by operating the tension switch (3B), and also controls the air volume and storage capacity using each of the sensors (21) and (26). The drying switch (37) is operated to detect each of the motors (14), (15), (20).
), (34) and the fuel pump (17), and each of the sensors (13), (21), (22), (
33) to detect temperature, air volume, flame, and circulating grain, and by operating the discharge switch (38), the motors (14), (15), and (34) are started to rotate and the solenoid ( 28) and each sensor (21
), (33) to detect the air flow rate and circulating grains, and the rotation of each motor (14), (15), (20), (34) is stopped by operating the stop switch (38). and each sensor (13), (21), (2
2), (26), and (33), temperature, air volume, flame, grain capacity, and circulating grain were not detected, and the solenoid (28)
The configuration is such that the timer hunting (40) is not activated.
When the time is set by operating the dryer (4), the dryer (4) is automatically stopped when the set time elapses, and the burner (2) is automatically stopped by operating the hot air temperature setting knob (41).
), the temperature sensor (13) detects the hot air temperature in the hot air chamber (9), compares the detected hot air temperature with the set hot air temperature, and determines if there is a difference. A configuration in which the temperature of the hot air generated from the burner (2) is changed to a high temperature or a low temperature by increasing or decreasing the number of times the fuel valve of the fuel pump (17) is opened and closed so that the temperature remains the same. It is.

The test run control device (3) includes each of the switches (36),
When the switch (3B) and the switch (37) of (37) and (38) are operated, the dryer (4) moves to the same place as when the tensioning switch (36) is operated. The rotation start is controlled for a certain period of time by the trial run control device (3), and then the same location as when the drying switch (37) is operated is
This test run control device (3) performs rotation start control for a certain period of time, and then the same location as when the discharge switch (38) is operated is rotated for a certain period of time by this test run control device (3). The dryer 41 (4) is configured to automatically stop, and when the trial run control device (3) is controlling the dryer (4) for a trial run, the capacity sensor (2B) and the circulation sensor (33) It is configured to transmit a signal when it is detected that a predetermined amount of grains have been accommodated after a predetermined time, and to transmit a signal when circulation of grains is detected after a predetermined time.

When carrying out grain tensioning work, operate the timer switch (40) of the operating device (6) and turn on the tensioning switch (36).
By operating the dryer (4), the parts necessary for the tensioning operation start rotating, and when grains are fed into the grain raising machine (28), the packet conveyor (29) of this grain raising machine (29) 30) and is fed into the transfer gutter (24), and the transfer spiral in this transfer gutter (24)
4) and onto a diffusion plate (25), where the grains are spread into a storage chamber (35), and when the storage chamber (35) reaches a predetermined amount, the storage capacity is increased. sensor(
26) detects this grain, and based on this detection, the control device (43) of the operating device (6) automatically controls the operation of the dryer (4).
) will automatically stop.

When drying grains, the timer switch (40) and hot air temperature setting switch (41) of the operating device (6) are used.
By operating the drying switch (37), the parts necessary for the drying operation of the dryer (4) start rotating, and at the same time, hot air is generated from the burner (2), and this hot air is By being sucked in by the exhaust fan (12), the hot air chamber (9) ventilates the drying room (1), passes through the exhaust chamber (11), is sucked and exhausted by the exhaust fan (12), and the dryer (4) )
The grains stored in the storage chamber (35) are stored in the storage chamber (35).
The grains are exposed to this hot air and dried while flowing down from the drying chamber (1) from 35), and are fed to the lower part by the feeding valve (8) and supplied into the grain collection gutter (7), and the grains are fed into the grain collection gutter (7). The grains are transferred and discharged by the transfer spiral in (7) through this collection gutter (7) into the supply gutter (32), transported to the upper part by the packet conveyor (30), and supplied into the transfer gutter (24). , this transfer gutter (2
The transfer spiral in 4) passes through the transfer gutter (24) and is supplied onto the diffusion plate (25), where it is evenly diffused and returned into the storage chamber (35) and circulated. When the moisture value of the grain reaches a predetermined moisture value after being dried and the set time set by the timer (40) has elapsed, the operation device (6)
) is automatically controlled by the controller (43) of the dryer 41 (4).
) will automatically stop.

When performing grain discharge work, the operating device (6)
By operating the timer switch (40) and operating the discharge switch (38), the parts of the dryer (4) necessary for performing the discharge operation start rotating, and the storage chamber (35) The dried grains in the storage chamber (35) are fed into the drying chamber (1) to the lower part by the feeding valve (8), and are supplied into the grain collection gutter (7). Grain gutter (7)
The transfer spiral in
2) is transferred and discharged into the packet conveyor (30
) is transported to the upper part and supplied into the transfer gutter (20,
When the grains are discharged from the machine through the opened valve (27) of the transfer gutter (20) and the circulation sensor (33) no longer detects the grains, the control device (43) of the operating device (6)
) to automatically stop the dryer (4).

When performing a trial run before starting the actual operation, the dryer (4) When the rotation is started during the grain tensioning operation in the main operation, the rotation is started at the same point for a certain period of time, and at the same time,
The operation of each sensor (21), (26) is checked,
Next, when the rotation is started when drying grains in the main operation, the same parts start for a certain period of time, and at the same time, the operation of each sensor (13), (22), and (33) is checked, and then the main operation starts. When the rotation is started when discharging grains, a signal indicating that the circulation sensor (33) no longer detects grains is transmitted after the rotation has started for a certain period of time, and this causes the operation device (6) to The trial run control device (3) automatically controls and automatically stops the dryer (4).

By operating two of the switches (3B), (37), and (38), the dryer (4) is controlled by the trial run control device (3).
is started to rotate, and at the same time, each of the sensors (13),
By checking whether the operations of (21), (22), (2B), (33), etc. are normal, it is possible to check in advance any malfunctions that may occur after the start of the actual operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is a flowchart, Fig. 3 is an overall front view of the dryer partially cut away, and Fig. 4 is partially cut away. FIG. 5 is an overall side view of the dryer, FIG. 5 is an overall rear view of the dryer, and FIG. 6 is an enlarged front view of a portion of the dryer. In the figure, reference numeral (1) indicates a drying chamber, (2) a burner, and (3) a test run control device.

Claims (1)

[Claims] While circulating the grains in the drying chamber (1), the burner (2)
) A grain dryer that controls the drying temperature, drying time, etc. by blowing heated air through the grain dryer is equipped with a test run control device (3) that temporarily stops the test run after a certain period of time by starting this drying control. An operation control device.