JPH02101374A - Drying control device for grain drying machine - Google Patents

Abstract

PURPOSE:To simplify sweeping and cleaning and permit the automation of the sweeping operation by a method wherein the title device is provided with drying mode, effecting the drying of grain automatically, and sweeping and cleaning mode, controlling the sweeping of the drying and circulating roes of the grain by effecting the series of remaining grain discharging process and the series of accumulated dust discharging process sequentially. CONSTITUTION:When grain, elevated by a grain elevator 1 and supplied into a reserving chamber 2, is drive, the title machine is switched into drying mode and the grain is dried by being exposed to hot air, generated from a burner 8, while repeating flow down and circulation from the reserving chamber 2 into a drying chamber 3 while the grain is discharged to the outside of the machine after the drying is finished. When sweeping is effected, the machine is switched from the drying mode into sweeping mode, then, sweeping ports, effecting the series of discharging process of the remaining grain in grain drying and circulating routes and the series of discharging process of accumulated dust, are operated so as to be opened sequentially while respective motors for driving the rotations of respective parts are rotated sequentially whereby the remaining grain, the accumulated dust and the like are discharged and the title machine may be cleaned.

Description

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

Conventional technology Conventionally, there is a drying mode in which the grains supplied from the grain raising machine are automatically ventilated and dried while flowing down from the storage chamber to the drying chamber. This drying control device did not have a cleaning mode in which cleaning was controlled by sequentially performing steps.

Problems to be Solved by the Invention The grains transported to the upper part of the grain hoist and supplied into the storage chamber are repeatedly circulated downward from the storage chamber into the drying chamber.
The dried grains are dried by being exposed to the hot air generated from the burner, and when this drying is completed, the dried grains are discharged outside the machine. When drying, in order to prevent the previously dried wheat grains from getting mixed into the paddy grains, when removing and cleaning the wheat grains, the cleaning ports provided in each part must be manually opened one after another. Cleaning is performed by manually operating each motor to sequentially rotate each part to remove grains, dust, etc. that remain in each part, so cleaning takes a long time. The cleaning process is time-consuming and dangerous due to manual operation of opening and closing the cleaning port, but in order to solve these problems, the aim is to automate the cleaning process.

Means for Solving the Problems The present invention provides a grain dryer in which grains supplied from a grain hoist (1) are ventilated and dried while flowing down from a storage chamber (2) through a drying chamber (3). Drying control that has a drying mode that automatically performs grain drying and a cleaning mode that performs cleaning control by sequentially performing the residual grain discharge processing process in the grain drying circulation process or the dust removal processing process for accumulated dust. The configuration of the device.

The effect of invention is increased! When drying the grains transported to the upper part and supplied into the storage chamber (2) in (1), when the mode is switched to the drying mode, the grains flow down from this storage chamber (2) into the drying chamber (3). While repeating the circulation, the grains are dried by being exposed to hot air generated from the burner, and when drying is completed, the dried grains are discharged outside the machine.

After this discharge operation is completed, the next time, for example, when drying different types of grains from wheat grains to paddy grains, these wheat grains are removed to prevent the previously dried wheat grains from being mixed into the paddy grains. When cleaning is performed, when switching from drying mode to cleaning mode, the cleaning ports for carrying out the residual grain discharge process in the grain drying circulation process or the dust removal process for accumulated dust are sequentially opened. Also, each motor that rotates each part rotates sequentially, and residual grains, accumulated dust, etc. are discharged and cleaned.

Effects of the Invention According to this invention, when cleaning the dryer after discharging grains after completion of drying, by switching to the cleaning mode, the grain drying circulation path can be automatically cleaned in sequence. Not only is it easy, but it also makes it possible to automate cleaning.

Example When rotating, the mechanism (5) of the dryer (4) has a rectangular shape that is long in the front and back direction, and the mechanism (5) on the front side is used to start and stop the dryer (4). Operating device (
6) and a burner case (9) with a burner (8) inside, and a burner case cover (lO) that can be opened and closed to prevent outside air from being taken in at the intake port on the front side of the burner case (9).
The burner case cover (10) is configured to open and close by winding up a rope by the rotation of a motor (11) that rotates forward and backward, and the mechanism (5) on the rear side is equipped with an exhaust fan (12). A fuel pump (13) having a fuel valve is provided on the outer side of the lower plate of the burner case (9), and when the fuel valve is opened or closed, the fuel pump (13) sucks the fuel in the fuel tank (14). A blower (15) and a motor (16) are provided on the outside of the upper plate, and the rotation of the motor (16) drives the blower (15). , is configured to supply combustion air to the burner (8).

A storage chamber (2) is formed in the upper part of the mechanism (5).

On the lower side of this storage chamber (2), drying chambers (3) equipped with a feeding valve (17) at the bottom for feeding and flowing grains are arranged in parallel and communicated with each other. Hot air room (18
) is formed and communicated with the burner (8),
Each drying chamber (3) has a configuration in which an exhaust chamber (19) is formed outside and communicates with the exhaust fan (12), and a transfer spiral is installed at the bottom of each drying chamber (3). It has a configuration in which a grain collection gutter (20) is provided and communicated with each other, and motors (21) and (22) are provided at the bottom of the mechanism (5) on the rear side.
) is configured to rotationally drive each of the delivery valves (17) via a speed change mechanism (23), the motor (22) is configured to rotationally drive the exhaust fan (12), and the exhaust chamber ( 19
) is provided with an intake port for sucking in outside air, and this intake port has an air exhaust chamber cover (
The exhaust chamber cover (24) is configured to be opened and closed by the operation of a solenoid (25), and when the exhaust chamber cover (24) is opened, outside air is sucked in and the exhaust chamber (19) is opened. ) is configured such that the dust accumulated in the grain collection gutter (12) is sucked and discharged by the exhaust fan (12), and a grain collection gutter cover (55) that can be opened and closed is provided at the bottom of the grain collection gutter (20) to form a cleaning opening. It is the composition.

This grain collection gutter cover (55) is configured to be opened and closed by the operation of a solenoid (56).

A ceiling plate (7) and a transfer gutter (26) equipped with a transfer spiral were installed on the upper side of the storage chamber (2), and an on-off valve (53) that could be opened and closed was installed at the starting end of the transfer gutter (26). Ejection tube (
54), and a supply port for supplying the transferred grains into the storage chamber (2) is provided in the center of this transfer gutter (26), and a diffusion plate (27) is provided below this supply port. The configuration is
An intake port for sucking outside air is provided at the starting end of the upper plate of the transfer gutter (26), and a transfer gutter cover (
28), and this transfer gutter cover (28) is configured to open and close by the operation of a solenoid (29), and when the transfer gutter cover (28) is open, outside air is sucked into the transfer gutter (26). Accumulated grains, dust, etc. are removed from the exhaust fan (1).
2) is configured to be sucked and discharged.

The grain raising machine (1) is installed in the front part of the mechanism (5) on the front side, and inside thereof, a packet conveyor (30) belt is stretched between the upper and lower boars, and the upper end and the starting end of the transfer gutter (26) are connected to each other. A dispensing tube (31) is provided between the grain collection gutter (20) for communication, and a supply gutter (32) is provided between the lower end and the terminal end of the grain collecting gutter (20) for communication. A supply gutter cover (33) that can be opened and closed is provided on the bottom of the gutter (32) to form a cleaning opening.
The grain raising machine cover (35), which can be opened and closed, is provided on the bottom of the grain raising machine (1) to form a cleaning opening. 35) is configured to be opened and closed by the operation of a solenoid (36), and a motor (37) is provided on the top of the grain hoist (1), and this motor (
37) and the packet conveyor (3o) belt.

The transfer spiral in the transfer gutter (26), the spreading plate (27), and the transfer spiral in the grain collection gutter (20) are rotatably driven, and the packet is located approximately at the center in the vertical direction. A moisture sensor (39) equipped with a motor (38) that receives grains that fall while being conveyed to the upper part of the conveyor (30), crushes the grains under pressure, and detects the moisture content of the crushed grains. The operating device (6) has a box-like configuration, and on the surface plate of the box there are start switches (40) for starting the dryer (4) for each task, and a stop switch (40) for stopping the dryer (4). 41), a changeover switch (42) for switching between drying mode and cleaning mode, a moisture setting switch (43) for setting grain finish targets, and a grain type setting for setting the temperature of the hot air generated from the burner (8). The structure is equipped with a display window (46) and a monitor display that alternately display the seeds (44), setting amount of seed (45), grain moisture, hot air temperature, remaining drying time, etc. is the control device (47)
The configuration includes a cleaning control device (48) and the like, and each setting (43), (44).

(45) is a rotary switch type, and the finishing target moisture is set by the operating position of this moisture setting switch (43), and the grain type setting seed (44) and the setting switch (43) are set.
The temperature of the hot air generated from the burner (8) is set depending on the operating position of the changeover switch (45).
42) is configured to switch to the drying mode when operated toward the cut side, and switched to the cleaning mode when operated toward the entered side.

The cleaning control device (48) includes an input circuit (49) into which the operation of the changeover switch (42) is input;
C:PU (50), which performs arithmetic and logical operations and comparison operations on input values input from (49), this cPU (50);
This configuration includes an output circuit (51) that receives and outputs various commands issued from 0).

The cleaning control by the cleaning control device (48) enters the cleaning mode when an ON state is input to the CPU (50) of the cleaning control device (48) by operating the changeover switch (42), and the motor (48) enters the cleaning mode. 22) and (37) are rotationally controlled, and each of the transfer spirals in the exhaust fan (12), the grain hoist (1), the grain collection gutter (20), and the transfer gutter (26) and the spreading board (27) to the CPU (50),
For example, at the same time that the motor (1, 1) is rotated for a set and memorized 3 minutes, the motor (1, 1) rotates forward and the intake port of the burner case cover (10) is operated to a closed state;
In addition, the solenoids (25) and (29) are activated, and the exhaust chamber cover (24) and the transfer gutter cover (28) are operated to open, thereby removing the remaining grains in the grain hoist (1). When the on-off valve (53) is opened, the on-off valve (53) is opened to discharge the dust and the like to the outside of the machine through the discharge tube (54), cleaning the inside of the grain raising machine (1). 26) are supplied to the storage chamber (2), and at the same time, outside air is sucked into the transfer gutter (26) from the intake port, and the air is sucked into the transfer gutter (26). is configured to automatically clean.

When the above three minutes have elapsed, only the motor (37) is controlled to stop, the motor (21) is further controlled to rotate, and each of the delivery valves (17) is set and stored in the CPU (50). At the same time as being rotated for 3 minutes, the solenoids (34), (36), and (56) are activated, and the supply gutter cover (33) and the grain hoist cover (3) are operated.
5) and the grain collection gutter cover (55) are operated to the open state,
The supply gutter (32) + the cleaning ports of the grain raising machine (1) and the grain collection gutter (20) are opened, and the drying chambers (3), the supply gutter (32), and the grain raising The remaining grains, dust, etc. remaining in the machine (1) and the grain collection gutter (20) are automatically discharged from the cleaning ports to the outside of the machine and automatically cleaned. Each motor (21),
At the same time when the motor (22) is controlled to stop, the motor (1
1) reversely rotates, and each of the solenoids (25)
, (29), (34), (36), and (56) are operated, and the respective covers (10), (24), (28),
(33), (35), and (55) are restored to their original states, and the dryer (4) is automatically stopped under automatic control by the cleaning control device (48).

The control bag [(47) is an A-D converter that converts the detection values detected by the moisture sensor (39) and the hot air temperature sensor (52) from A-D, and the conversion performed by this A-D converter. an input circuit into which a value is input, each of the switches (40);
(41) and each setting hunting (43), (44),
(45) An input circuit into which the operation is input, a CPU (50) that performs arithmetic and logical operations, comparison operations, etc. on various input values input from each input circuit, and various commands issued from this CPU (50). This configuration includes an output circuit that receives and outputs the signal.

The hot air control and moisture detection control by the control device (47) are performed based on the set hot air temperature set by the operations of the grain type setting setting (44) and the loading amount setting (45) and the hot air temperature sensor (52). ) is compared with the detected hot air temperature, and if there is a difference, the amount of fuel supplied to the burner (8) is controlled by the control device (47) so that the hot air temperature is the same as the set hot air temperature. and the moisture sensor (
39) detects the same grain moisture as the finishing target moisture set by operating the moisture setting controller (43), the dryer (4) is automatically stopped under automatic control by this controller (47). The configuration is as follows.

Hereinafter, the operation of the above embodiment will be explained.

To start drying work, move each setting (43), (44), (45) of the operating device (6) to the specified position, and turn the changeover switch (42) to the OFF side to switch to drying mode. start switch (40) to start drying.
By operating the dryer (4), burner (8) and moisture sensor (39), hot air is generated from the burner (8) and the grains flowing down inside the drying room (3) are exposed to this hot air. The grains are exposed to dryness and when the moisture sensor (39) detects the same grain moisture as the finishing target set by operating the moisture setting switch (43).

When the control device (47) of the operating device (6) automatically stops the dryer (4) and starts the discharge operation of discharging the dried grains to the outside of the machine.

By operating the start switch (40) that starts the discharge operation, the dryer (4) is started, the on-off valve (53) in the discharge tube (54) is operated to open, and the bucket conveyor (30) is operated. The grains conveyed to the upper part are fed into the transfer gutter (26) via the dispensing tube (31).

It is discharged from this transfer gutter (26) to the outside of the machine via this discharge tube (54)6. When cleaning the dryer (4), operate the changeover switch (42) to the entry side to set it to cleaning mode. When the start switch (40) is operated to start discharging, parts other than the delivery valve (17) are driven to rotate for a predetermined period of time, and at the same time, the burner case (10) is moved to the burner case cover (1).
1), the dust removal chamber cover (24) and the transfer gutter cover (28) are operated to the open state, and grain raising 4! m
(1) The transfer gutter (26) and the dust removal chamber (19) are automatically cleaned, and when this predetermined time has elapsed, the delivery valve (17) is automatically cleaned.
) is rotated for a predetermined period of time, and at the same time the motor (
At the same time, the rotation of the grain hoist (1), the upper and lower transfer spirals, and the spreader plate (27), which had been rotationally driven by 37), is stopped, and at the same time, the supply gutter cover (33) and the grain hoist cover (35) are stopped.
and the grain collection gutter cover (55) are operated to the open state, each of these cleaning ports is opened, and the grains and dust are discharged to the outside of the machine. ), the supply gutter (32) and the grain collection gutter (20) are automatically cleaned.

By setting the dryer (4) to the cleaning mode, each part of the dryer (4) can be automatically cleaned, thereby significantly shortening the cleaning time.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall side view of the dryer that can be partially cut away, Fig. 2 is an overall front view of the dryer that can be partially cut away, and Fig. 3 is a block diagram. , Figure 4 is an overall rear view of the dryer, Figure 5 is an enlarged front view of a portion of the dryer,
FIG. 6 is an enlarged side view of a part of the dryer, FIG. 7 is an enlarged sectional view taken along the line AA in FIG. In the figure, code (1) is a grain raising machine, and code (2) is a storage chamber. (3) indicates the drying room.

Claims (1)

[Claims] In a grain dryer that ventilates and dries grains supplied from a grain raising machine (1) while flowing them down from a storage chamber (2) to a drying chamber (3), a drying mode that automatically performs this grain drying;
A drying control device provided with a cleaning mode in which cleaning is controlled by sequentially performing a residual grain discharge process in a grain drying circulation process or a dust removal process for accumulated dust.