JPS63282478A - Cereal-grain drying control system of 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 Field of Industrial Application This invention relates to a grain dryer control system for a grain dryer. A moisture sensor is provided to detect the moisture value of the grains that are circulated to the drying room and dried at predetermined time intervals, and to obtain the drying loss rate of the grains based on the detected moisture values, and to set the finishing moisture value. In a dryer equipped with a target moisture setting device and a timer setting device for setting drying time, if drying work is performed without setting the finishing moisture value by operating the target moisture setting device, the timer setting device must be operated. The grain drying control system does not automatically stop the dryer until the set time has elapsed.

Problems to be Solved by the Invention While the grains flowing down the drying chamber are exposed to hot air generated from the burner and dried, the moisture value of the drying grains is detected by a moisture sensor. The drying rate of the grain is detected from the value, and the grain is dried while controlling the temperature of the hot air generated from the burner so that the detected drying rate becomes the same as the set drying rate, and the target moisture content is set. Drying occurs when the moisture sensor detects the same grain moisture value as the finished moisture value set by operating the device, or the set time set by operating the timer setting device has elapsed, whichever comes first. The machine will automatically stop, but during this drying process, you may forget to operate the target moisture setting device, do not set the finishing moisture value, or incorrectly operate the timer setting device, setting the drying time to a long time. When the drying process is carried out, the grains may become overdried, resulting in shell side, or the quality may deteriorate and the taste may deteriorate.

Means for Solving the Problems This invention comprises a drying chamber (2) in which grains are dried by hot air from a burner (1) while flowing down;
A moisture sensor (3) is provided to detect the moisture value of the grains that are circulated and dried at predetermined time intervals and obtain the drying loss rate of the grains based on the detected moisture values. In a dryer equipped with a target moisture setting device (4) for setting a moisture value, a timer setting device (5) for setting a drying time, an alarm device (6) for emitting an alarm, etc., the timer setting device (5) is installed. The drying time set by the operation is compared with the required drying time estimated from the drying rate detected by the moisture sensor (3), and if the difference obtained from this comparison is greater than or equal to a predetermined value, the alarm device In (6), the grain drying control system is configured such that an alarm control device is provided to issue an alarm. Effects of Invention A: The grains flow down inside the drying chamber (2) while passing through the burner ( While the grains are being dried by being exposed to hot air generated from 1), the moisture value of the drying grains is detected by a moisture sensor (3), and the drying rate of the grains is detected from this detected moisture value. The grains are dried while controlling the temperature of the hot air generated from the burner (1) so that the drying rate is the same as the set drying rate, and the finished moisture value is set with the target moisture setting device (4). During this drying operation, the dryer automatically stops when the same grain moisture value is detected by the moisture sensor (3) or the time set by the timer setting device (5) has elapsed, whichever comes first. Sometimes, if you forget to operate the target moisture setting device (4) and do not set the finishing moisture value, the drying of the grain is determined based on the detected drying loss rate detected from the moisture value detected by the moisture sensor (3). The time required for drying up to ) to issue an alarm and notify the operator.

Effects of the Invention With this invention, even if you forget to operate the target moisture setting device (4) and do not set the finished moisture value, the calculation can be performed indirectly from the detected moisture value detected by the moisture sensor (3). Calculated drying time and timer setting device (5)
The setting time set in is compared with the setting time set in the timer setting device (5), and an alarm is issued based on the comparison result. Even if an incorrect drying time is set in the timer setting device (5), The grains are not dried during the drying time, and therefore the grains do not become over-dried, and the grains do not become shell-like or suffer from deterioration in quality.

Embodiment In the illustrated example, the model (8) of the dryer (7) has a rectangular shape in a plan view that is long in the front and back direction, and is composed of front and rear wall plates and left and right wall plates, and this front wall plate has /Hena (1). An operating device (32) is provided for starting and stopping the burner case (9) containing the burner case (9) and the dryer (7), and an exhaust fan (1o) is provided on the rear wall plate. be.

A grain collection gutter (11) equipped with a transfer spiral is installed in the center of the lower part of the model (8), and above the grain collection gutter (11) there is a drying chamber (2) with a feeding valve (12) pivotally supported at the bottom. ) are arranged in parallel and communicated with each other, and a hot air chamber (14) is formed between the insides of the drying chambers (2) and (2), and communicated with the burner (1). is equipped with a hot air temperature sensor (15) for detecting the hot air temperature, and the drying chamber (2),
(2) Exhaust chambers (16) and (18) are formed on the outside,
It is configured to communicate with the exhaust fan (10), and a motor (17) is provided on the rear wall plate, and the motor (17) operates the exhaust fan (IO), the transfer spiral, and the delivery valve (12). ,(
12) etc. is configured to rotate.

A fuel pump (18) 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 and closed, the fuel pump (18) sucks the fuel in the fuel tank (19) to supply the burner. (1) A blower (20) and a motor (21) are provided on the outside of the upper plate, and the motor (21) rotates and drives the blower (20). to supply combustion air to the burner (
1) It is a configuration that supplies the inside.

A storage chamber (13) is formed above the drying chambers (2), (2), and a ceiling plate (22), (2) is formed above the storage chamber (13).
22) and a transfer gutter (23) equipped with a 4 to 5g transfer tube, and a supply port for supplying the transferred grains into the storage chamber (13) is provided in the center of the transfer gutter (23). A diffusion plate (24) is provided on the lower side of the mouth, and a window (25) is provided on the front wall panel forming the storage chamber (13), and a window (25) is provided on the side of this window (25). is a structure in which a numerical value is provided to indicate the amount of grain accommodated.

A grain hoist (2B) is provided in front of the front wall plate, and a packet conveyor (27) belt is stretched between the upper and lower pulleys inside, and a packet conveyor (27) belt is provided between the upper end and the starting end of the transfer gutter (23). A dispensing tube (28) is provided to communicate with the lower end and the S grain trough (1).
1) A supply gutter (29) is provided to communicate with the terminal end, and a motor (30) is provided on the upper part of the grain raising machine (28), and this motor (30) drives the keratoconveyor ( 27
) belt, the transfer spiral in the transfer gutter (23), the diffusion plate (24), etc., are configured to rotate, and a moisture sensor (3) is provided at the vertical center, (3) receives grains that fall while being conveyed to the upper part of the packet conveyor (27), crushes the grains under pressure, and at the same time detects the moisture value of the crushed grains, and uses the detected moisture value to The moisture sensor (3) is configured to calculate the drying rate of grains, and the moisture sensor (3) is operated by a motor installed in the moisture sensor (3) by transmitting an electric side constant signal from the operating device (9). (31) rotates, and this motor (31)
The rotation of the moisture sensor (3) rotates each part of the moisture sensor (3) to detect the moisture value of the grain.

The operating device (32) is box-shaped, and the surface plate of the box includes a start switch (33) for starting and stopping the dryer (7), a stop switch 2,000 (34), and grains. A target moisture setting device (4) for setting the finish moisture value, a timer setting device (5) for setting the drying time, and a hot air temperature setting device for setting the hot air temperature! An IC device (35), a drying rate setting device (36) for setting the drying rate of grains, an alarm device (6) for emitting an alarm, and the hot air temperature sensor (15) and the moisture sensor (3) detect The configuration includes a display window (37) that alternately displays detected values, and a control device and an alarm control device (38) inside, each of which has setting devices (4), (5), (35) and (36) are a-tally switch type, and these setting devices (4), (5), (
3B) is operated to the position of the numerical value displayed on the surface plate,
The finishing moisture value, drying time, and drying rate are set, and the setting device (35) operates the displayed numerical value of the grain stored in the storage chamber (13) to the same position as the numerical value displayed on the surface plate. Then, the temperature of the hot air generated from the burner (1) is set.

The alarm control device (38) includes an A-D converter (39) that converts the detection value detected by the moisture sensor (3) from A to D.
, an input circuit (40) into which the converted value converted by the A-D converter (39) is input, and the general determination devices (4), (5).
), an input circuit (41) into which operations are input, and a CPU (42) which performs arithmetic and logical operations, comparison operations, etc. on various input values manually input from these input circuits (40) and (41).
The configuration includes an output circuit (43) that receives and outputs various commands from the CPU (42).

The control device includes an A-D converter that converts a detection value detected by the hot air temperature sensor (15) from A to D;
An input circuit into which the converted value converted by the converter is input, each of the switches (33) and (34), and each of the setting devices (3).
5), an input circuit into which the operations of (36) are input, the CPU (42) which performs arithmetic and logical operations, comparison operations, etc. on the 8 types of input values input from each of these input circuits;
2) has an output circuit that receives and outputs various commands.

The operations of the starting switch 2,000 (33) and the setting devices (35) and (36) are input to the control device, and the operations of the setting devices (4) and (5) are input to the alarm control device (38). When the operation is entered, the drying j)! (7) starts, at the same time the burner (1) and the moisture sensor (3) start.
) is started, the hot air temperature generated from this burner (1) is detected and inputted by the hot air temperature sensor (15),
This detected hot air temperature and the set hot air temperature set by operating the setting device (35) are compared, and if they are different, the number of times the fuel valve is opened and closed is changed so that the temperature becomes the same as the set hot air temperature. The moisture sensor (3) detects a grain moisture value, and when this detected moisture value is input, the amount of fuel sucked by the fuel pump (18) is changed. The drying rate is calculated, and this calculated drying rate and the corresponding setting bag! The drying rate set by operating (3B) is compared, and if there is a difference, the number of openings and closings of the fuel valve is changed so that the drying rate is the same as the set drying rate. When the calculation of the drying rate is started, the fuel pump (18) is controlled according to the calculated drying rate.
3) detects a grain moisture value that is the same as the finishing target moisture value set by operating the setting device (4), or the setting device (
The dryer (7) is automatically controlled by this control device to automatically stop the dryer (7) when the set drying time set by operating 5) has elapsed, whichever comes first.

Further, the drying time required to finish drying the grain is calculated from the calculated drying rate calculated from the detected moisture value detected by the moisture sensor (3), and the calculated drying time and the setting device (5) The drying time set by operating the CPU (
42) has been set and stored for one hour or more, and when no operation is input to the setting device (4), the alarm control bag 22 (38) starts and controls the alarm device (6), This alarm device (6) is configured to generate an alarm, and even when an operation is input to the setting device (4), if the difference between the calculated drying time and the set drying time is 1 hour or more, If so, it may be configured to issue an alarm, and the timing for issuing this alarm may be either immediately when the calculated drying time is calculated, or 2 to 3 hours before the end of drying. Good too.

Each setting device (4), (5), (35) of the operating device (32)
) and (36) to the specified positions, and then turn the start switch (33
), the dryer (7) is started, and at the same time the burner (1) and moisture sensor (3) are started, hot air is generated from the burner (1), and from the hot air chamber (14) to the drying chamber ( 2) Ventilation is carried out through the ventilation chamber (16) and the ventilation fan (1).
The grains are sucked and discharged by air at 0) and stored in the storage chamber (13), where they are exposed to the hot air and dried while flowing down from the storage chamber (13) into the drying chamber (2). (12), the grain is fed to the lower part, flows down, and is supplied into the collection gutter (11).
) through the supply gutter (29) into the grain raising machine (26), transported to the upper part by the packet conveyor (27), passed through the dispensing tube (28), and fed into the transfer gutter (23). The transfer spiral in the transfer gutter (23) transfers and supplies from this transfer gutter (23) onto the diffusion plate (24), and this diffusion plate (2
4), the grains are evenly diffused and reduced into the storage chamber (13), and are circulated and dried so that the moisture sensor (3) obtains the same grain moisture value as the finished moisture value set by operating the setting device (4). When the drying time is detected or the set drying time set by operating the setting device (5) has elapsed, whichever comes first, the dryer (7) is automatically controlled by the control device of the operating device (32). ) will automatically stop.

During this drying work, if you forget to operate the setting device (4) and have not set the finishing moisture value, you can use the calculated drying loss rate calculated from the detected moisture value detected by the moisture sensor (3). The required drying time is calculated, and the calculated required drying time is compared with the set drying time set by operating the setting device (5).

If the difference obtained from this comparison is greater than or equal to a predetermined value, the alarm control device (38) of the operating device (32) starts and controls the alarm device (6) to issue an alarm from the alarm bag M(6). emanate.

The required drying time obtained by calculation from the detected moisture value detected by the moisture sensor (3) and the set drying time set by the setting device (5) are compared, and when the difference is large, an alarm is issued. Even when the finishing moisture value of the grains is not set because the user forgets to operate the setting device (4), the grains are not dried for a long time, and therefore the grains can be dried properly.

[Brief explanation of the drawing]

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 enlarged front view of a portion of the dryer. In the figure, (1) is a burner, (2) is a drying chamber, (3) is a moisture sensor, (4) is a target moisture setting device, (5) is a timer setting device, and (6)! ±Indicates alarm device.

Claims (1)

[Claims] A drying chamber (2) in which grains are dried by hot air from a burner (1) while flowing down, and a moisture value of the grains that are circulated and dried in this drying chamber (2) is detected at predetermined time intervals. A moisture sensor (3) that obtains the drying rate of the grain based on the moisture value is provided, as well as a target moisture setting device (4) that sets the finishing moisture value of the grain, and a timer setting device (5) that sets the drying time. , and an alarm device (6) that issues an alarm.
In a dryer equipped with a dryer, the drying time set by operating the timer setting device (5) is compared with the drying time estimated from the drying rate detected by the moisture sensor (3). A grain drying control system characterized by being provided with an alarm control device that controls the alarm device (6) to issue an alarm if the difference obtained by comparison is greater than a predetermined value.