JPS63254386A - 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.

Conventional technology Conventionally, in a grain dryer having a fried grain discharge device, a single current detection device detects the current value of each motor that rotationally drives the fried grain discharge device and each part of the dryer. A circulation sensor is provided to detect grains circulating in the dryer, and when the circulation sensor no longer detects grains, the dryer is stopped as the discharge operation is completed.

Problems to be Solved by the Invention When carrying out a discharge operation in which dried grains are fried and discharged outside the machine, each motor rotates and each part of the dryer starts by operating the discharge operation start switch. At the same time, the fried grain discharging device is started, and the dried grains in the storage chamber are fed out from the storage chamber to the lower part of the drying chamber using the feeding valve, flow down, and are supplied into the grain collection gutter. The grains are transferred by the lower transfer spiral and fed into the hoisting machine, and then transported to the upper part of the hoist and fed into the transfer gutter, and the discharge valve in the discharge funnel provided at the starting end of this transfer gutter is opened. As a result, the fried grains are supplied through this discharge funnel into the fried grain discharge device, and fried grains are discharged outside the machine by this fried grain discharge device.

When there are no dried grains in the dryer and the circulation sensor that detects the circulation state of the grains no longer detects the circulation of the grains, each motor will stop due to this detection, but this discharge operation will be stopped from the start. If a predetermined period of time has elapsed, even if the circulation sensor no longer detects grains, the current value for each motor can be used to determine whether this is due to clogging of grains or whether the ejection has been completed normally. In some cases, it was not possible to make a determination due to the lack of

Means for Solving the Problems This invention provides a fried grain discharging device (for discharging grains to the outside of the machine).
The grain dryer equipped with 1) is provided with each current detection device (3) that detects the current value of each motor (2) that rotationally drives each part of this dryer, and each current detection device (3) is A configuration of an operation control device characterized by a determination control device that determines, based on a detected current value, whether the grain has finished being fried to the outside of the machine or whether an abnormality has occurred in each of the rotating parts of the dryer. do.

Effect of the Invention The discharge operation for discharging the dried grains to the outside of the machine can be performed by, for example, operating the discharge operation start switch, each motor (2)
rotates, the dryer and the fried grain discharging device (1) start, and the fried grain discharging device (1) discharges the grains to the outside of the machine.
During this discharge work, each current detection device (3) detects whether the current value of each motor (2) is in a no-load state, an overload state, or an intermediate load state.

Further, when the f1 ring sensor detects the grains being circulated and discharged, and the circulation sensor no longer detects the circulation of the grains, the dryer and the fried grain discharge device (1) automatically stop.

Effects of the Invention From this January, the fried grain discharging device (1) and the dryer automatically stop while the dried grains are being fried and discharged outside the machine.1. : Even if the current value of each motor (2) is detected by providing each current detection device (3), the valley current detection device (3)
If it detects the overload E: of each motor (2), it can be determined that the motor has stopped due to an abnormality, and if each motor (2) has stopped with no load, the grain discharge is stopped. Since it can be determined that the work has been completed, the discharge work has become easier and simpler.

Embodiment In the example shown in Figure 1, the machine wall (5) of the dryer (4) has a rectangular shape in a plan view that is long in the front and back direction, and the front wall plate has a rectangular shape that is long in the front and rear direction. ) is provided with a burner case (8) containing an operating device (6) for starting and stopping the burner (7), and an exhaust fan (
9).

In the center of the lower part of the machine wall (5), extending in the front and back direction,
A grain collection gutter (11) equipped with a lower transfer spiral (10) is provided, and a feed valve (12) is installed on the upper side of the grain collection gutter (11).
) are arranged in parallel and communicated with each other, and a hot air chamber (14) is formed between the inner sides of the drying chambers (13) and communicated with the burner (7). , the hot air chamber (14
) is equipped with a hot air temperature sensor (15), and outside the drying chamber (13) is an exhaust chamber (18).
, (16) to communicate with the exhaust fan (9), and a motor (2) for rotationally driving the exhaust fan (9) on the rear wall plate.
and a motor (2) that rotationally drives the delivery valve (12).
This is a separate configuration.

The drying chamber (13) has a storage chamber (13) above the drying chamber (13).
7), and a ceiling plate (17) is formed on the upper side of this storage chamber (17).
8), (18) and an upper transfer spiral (22) are provided in the central part of the transfer gutter (13). Is there a diffusion hole on the bottom of this supply port? 1i (20),
The front wall plate forming the storage chamber (17) is provided with a window (21) through which the grain width stored in the storage chamber (17) can be visually observed. It has a configuration in which a numerical value is provided to display the particle size, and a discharge funnel (23) equipped with a discharge shutter (24) that can be opened and closed is provided below the starting end of the transfer gutter (19). ) below is f
An S grain discharge device (1) is provided, and this fried grain discharge device (1) is configured to be rotationally driven by a motor (2) to discharge the fried grains to the outside of the machine.

A grain hoist (25) is provided in front of the front wall plate, and a bucket conveyor (26) belt is stretched between the upper and lower pulleys, and a belt is provided between the upper end and the starting end of the transfer gutter (19). A discharging tube (27) is provided to communicate with the lower end and the grain collection gutter (1).
1) A supply gutter (28) is provided between the terminal end and the upper transfer spiral (2
2) , the diffuser plate (20) and the lower transfer spiral (10);
), etc., and a circulation sensor (29) for detecting the circulation of grains is provided in the dispensing tube (27),
This circulation sensor (29) is turned on when grains are passing through the dispensing tube (27), detects that grains are circulating in the turned-on state, and is turned off. When the condition is reached, it is detected if1 that the grains are not circulating, and a moisture sensor (30) is provided in the center of the vertical direction of the grain raising machine (25).
) receives grains that fall while being transported to section h on the packet conveyor (2B), crushes the grains under pressure, and at the same time detects the moisture value of the crushed grains, and the moisture sensor (30) is a motor (2) installed in this moisture sensor (30), which is rotated by the electric measurement signal transmitted from the operating device (6) at predetermined time intervals. , this moisture sensor (30)
Each part is rotationally driven to detect grain moisture.

A fuel pump (31) having a fuel valve is provided on the outer side of the lower plate of the burner case (8), and when the fuel valve is opened and closed, the fuel pump (31) sucks fuel from the fuel tank (32) to supply the burner ( 7), a blower (33) and a motor (2) are provided on the outside of the upper plate, and the motor (2) rotates and drives the 4m (33) of air to blow the air Ja, ( 33) is configured to supply combustion air into the burner (7).

The operating device (6) is box-shaped, and the surface plate of the box includes a lining operation start switch (34) for starting and stopping the dryer (4) for each operation, and a drying operation start switch (34). Start switch (35), discharge work start switch (3B)
, a stop switch (37), a target moisture setting device (38) for setting a finishing target moisture value, a hot air temperature setting device (39) for setting a hot air temperature, and the moisture sensor (30).
The detected moisture value detected by the hot air temperature sensor (15)
The display window (4) alternately displays the detected hot air temperature detected by the
0), and a control device (41) inside.
, each current detection device T (3
), and each setting knob (38), (38) is a rotary switch type, and when this setting machine (38) is operated to the position of the finishing target numerical value displayed on the surface plate, the finishing target moisture content is set. The value is set, and this setting machine (33) moves the numerical value on the window (21) displaying the amount of grain stored in the storage chamber (17) to the same position as the numerical value displayed on the surface plate. When operated, the temperature of the hot air generated from the burner (7) is set.

The determination control device (42) includes an A-D converter (43) that converts the detection values detected by the current detection devices (3) into A-D.
), an input circuit (44) into which the converted value converted by the A-D converter (43) is input, and the circulation sensor (29).
), an input circuit (4-5) to which the detection of
), and an output circuit (47) that receives and outputs various commands from the CPU (4B).

The control device (41) is connected to the hot air temperature sensor (15).
And the detection value detected by the moisture sensor (30) is A-
An A-D converter (4B) that performs D conversion, an input circuit (to which the converted value converted by this A-D converter (4B) is input)
49), each of the switches (34), (35), (3B
), (37) and each setting machine (38), (31
The input circuit (50) into which the operation of 3) is input, and the CPU which performs arithmetic and logical operations, comparison operations, etc. on various input values input from these input circuits (49) and (5G).
(48) The configuration includes an output circuit (5) which receives and outputs various commands from this CPU ([1).

The judgment control device (42) inputs the operation of the discharge work start switch (3B) to the control device (41), and the feed valve (12) of the grain circulation system to the judgment control bag 2i (42); The grain raising machine (25) and the fried grain discharge bag m
The current values of the motors (2) that rotationally drive the motors (1) are detected and input by the current detection devices (3), and this input value and the number ( rt
If the value is greater than or equal to the set value, the motor (2) is overloaded. The determination control device (42) displays in the display window (40) which motor (2) is rotationally driven.
is a configuration in which an overload condition occurs due to the occurrence of grain clogging,
When grain clogging occurs, the grains are no longer circulated, the circulation sensor (29) no longer detects the grains, and the dryer (4) is automatically stopped.

The control device (41) controls each of the settings (3 days) and (3 days).
9) is input, and the drying operation start switch (3) is activated.
When the operation 5) is input, the dryer (4) is started, the moisture sensor (30) detects the grain moisture value, and the moisture sensor (30) adjusts the setting sowing rate (38). When a grain moisture value that is the same as the finishing target moisture value set by the operation is detected, this control device (41) automatically controls the dryer (
4) is configured to automatically stop, and the hot air temperature detected by the hot air temperature sensor (15) and the setting temperature (39) are configured to automatically stop.
) and the preset hot air temperature set by operating the fuel pump (31
) is configured to change the number of times the fuel valve (31) is opened and closed to change the amount of fuel sucked in by this fuel pump (31).

The dryer (4) is started by operating the tensioning work start switch (34) of the operating device (6), and the grains to be dried are put into the dryer (4). When the tensioning is completed, the dryer (4) is stopped. Operate the sweetener (37) to automatically stop the dryer (4),
When performing drying work, operate each setting knob (38), (39) of the operating device (6) to a predetermined position, and operate the drying work start switch (35). ) starts, hot air is generated from the burner (7), and this hot air flows from the hot air chamber (14) to the drying chamber (13).
The grains are ventilated, passed through the ventilation chamber (18), sucked and exhausted by the ventilation fan (9), and stored in the storage chamber (17) from the storage chamber (17) into the drying chamber (13). The grains are exposed to this hot air and dried while flowing down, and are fed out to the lower part by the delivery valve (12), waved down, and supplied into the grain collection gutter (11). (lO) and this grain collecting trough (11
) is transferred and supplied into the grain raising machine (25) via the supply gutter (28), transported to the upper part by the packet conveyor (28), and fed into the transfer gutter (18) via the dispensing tube (27). The upper transfer spiral (22) in the transfer trough (19) passes through this transfer trough (13) and onto the diffusion plate (20), where it is evenly distributed into the storage chamber (17). When the moisture sensor (30) detects the same grain moisture value as the finishing target moisture value set by operating the setting knob (38) after being diffused and reduced and circulated and dried, the operating device "Jl (6) The dryer (4) is automatically stopped under automatic control by the control device (41).

When performing a discharge operation to fry and discharge the dried grains outside the machine, the dryer (4) is started by operating the discharge operation start switch (36) of the operating device (6), and at the same time, When the fried grain discharge device (1) is started and the discharge shutter (24) of the discharge funnel (23') is opened,
The grains are transported from the storage chamber (17) through the drying chamber (13), the grain collection chamber (11), the supply gutter (2B), the grain raiser (25), and the dispensing tube (27). It is supplied into the transfer gutter (19), from this transfer gutter (19) through the discharge funnel (23) and into the grain frying device (1).
) is discharged outside the machine, and during this discharge operation the dispensing tube (27
) The circulation sensor (29) installed in the dispensing tube (27
), and when no grains are detected, the control device (41) automatically controls and automatically stops the dryer (4).

Also, when each current detection nail (3) detects an overload current of each motor (2) during this discharge work, the operation device (6)
) displays which motor (2) has an overload current on the display window (40), and the dryer (4) described in (iii) automatically stops.

Either an abnormality occurred in each motor (2) of the dryer (4) during the discharge operation and the dryer (4) stopped, or the dryer (4) stopped due to the discharge operation being completed normally. is stopped +
h I, Taka can be easily determined.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a block diagram, Fig. 2 is a flowchart 1 diagram, Fig. 3 is an overall front view of the dryer partially cut away, and Fig. 4 is a block diagram. FIG. 5 is an enlarged front view of a portion of the dryer. In the figure, code (1) is the fried grain discharge device, (2) is each motor,
(3) shows each current detection device.

Claims (1)

[Claims] Each current detection device detects the current value of each motor (2) that rotationally drives each part of this dryer in a grain dryer equipped with a grain discharge device (1) that discharges grains outside the machine. (3) is provided, and based on the detected current value of each current detection device (3), determination control is performed to determine whether the grain has been discharged outside the machine or whether an abnormality has occurred in each of the rotating parts of the dryer. An operation control device characterized by being equipped with a device.