JPS6233278A - Abnormality detector 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] Spinning wheel 1-Φil + Tareino The present invention relates to an abnormality detection device for a grain dryer.

Conventional technology Conventionally, the temperature of hot air generated from a burner is set depending on the type of grain to be dried and the amount of grain to be dried, etc., and the set hot air temperature is generated from the burner to dry the grains. During drying, an outside air temperature detection sensor installed in the storage chamber detects the outside air temperature, and a predetermined temperature amount set and stored in the control device is controlled to decrease or increase based on the detected outside air temperature, and the burner The hot air temperature generated is lower temperature,
Or the hot air temperature is controlled to be changed to a high temperature, the hot air temperature is detected by a hot air temperature detection sensor installed in the hot air chamber, and the detected hot air temperature is the same as the hot air temperature controlled by the control device,
This is a device that detects that an abnormality has occurred when a disconnection or short circuit occurs in both detection sensors, but due to the deterioration of the characteristics of both detection sensors, the detected temperature value may vary The device did not detect any abnormality even if it occurred.

Problems to be Solved by the Invention While the grains stored in the storage chamber are fed out from the storage chamber into the drying chamber and flowed down, the burner generates grains depending on the type and amount of grains stored in the storage chamber. A hot air temperature is set, the set hot air temperature is generated from the burner, and the hot air is sucked by an exhaust fan, and the air is sucked and discharged from the hot air room through the drying room and the exhaust room by the exhaust fan, While the grains flowing down the drying chamber are exposed to the hot air and dried, the temperature of the hot air generated from the burner is determined by the outside air temperature detected by the outside air temperature sensor installed in the storage chamber during the drying process. A predetermined temperature amount set and stored in the control device is controlled to decrease or increase, and the heat generated from the burner is controlled to be changed to a low temperature or high temperature,
This hot air temperature is detected by a hot air temperature detection sensor installed in the hot air chamber, and the amount of fuel supplied to the burner is adjusted so that the detected hot air temperature is the same as the hot air temperature controlled by the control device. In a controlled type dryer, if the rain detection sensor is used for a long time and its characteristics deteriorate, a deviation may occur in the detected temperature value detected by the rain detection sensor. If this occurs, the hot air temperature IW generated from the heath will not be controlled at an accurate hot air temperature, and if the hot air temperature IW generated from the heath is controlled at an incorrectly high temperature, the grains during drying will The temperature of the grain may rise abnormally, causing the kernels to form shells or break up. Also, contrary to the above, the temperature of the hot air generated from the burner may be at an incorrectly low temperature. When controlled, the grains being dried may not finish drying within a predetermined time.

Means for Solving the Problems This invention provides a storage chamber (1) in the upper part for storing grains, a drying chamber (2) in the lower part through which the grains flow down, and a burner (3). The hot air generated by the hot air is sucked and exhausted from the hot air chamber (4) through the drying chamber (2) and the exhaust chamber (5) by the exhaust fan (6), and the storage chamber (1) is provided with outside air. An outside temperature detection sensor (7) for detecting the temperature is provided, and a hot air temperature detection sensor (8) for detecting the temperature of the hot air passing through the hot air chamber (4) is provided in the hot air chamber (4). Immediately after the start of drying work, the detected temperatures detected by the rain detection sensors (7) and (8) are compared to detect a temperature difference, and when this temperature difference is equal to or higher than the set temperature value, the rain detection sensor (7),
(8) An abnormality detection device for a grain dryer is provided with a control device that detects and controls when (8) is abnormal.

Effect of the invention The grains flowing down from the storage chamber (1) into the drying chamber (2) are heated by setting the hot air temperature according to the type and amount of grains stored in the storage chamber (1). The set hot air temperature is generated from the burner (3), and this hot air is sucked and exhausted from the hot air chamber (4) through the drying chamber (2) and the exhaust chamber (5) by the exhaust fan (6). The grains are dried by being exposed to this hot air, and during this drying, the outside temperature detection sensor (7) installed in the storage chamber (1) detects the outside air temperature. When the temperature of the hot air generated from the burner (3) is set in the control device and the outside temperature detected by the outside temperature detection sensor (7) increases by 5 degrees while the temperature is stored, the temperature of the hot air generated from the burner (3) increases by 5 degrees. Set hot air temperature to 1
The grains are dried by changing the temperature to a high temperature using the control device.

Contrary to the above, when the outside air temperature detected by the outside air temperature detection sensor (7) drops by 5 degrees, the control device changes the set hot air temperature generated from the burner (3) to a 1 degree lower temperature. Dry the grain in a controlled manner.

This control device changes and controls the hot air temperature in the hot air chamber (
4) Supply fuel into the burner (3) so that the detected hot air temperature detected by the hot air temperature detection sensor (8) provided in the burner becomes the same as the hot air temperature controlled by the control device. The fuel flow rate is controlled by the control device, and the hot air temperature optimal for grain drying is generated from the burner (3) to dry the grains.

Immediately after the start of this drying work, and before hot air is generated from the burner (3), the temperatures detected by the outside temperature detection sensor (7) and the hot air temperature detection sensor (8) are compared to detect rain. Sensor (7) When the detected temperature difference is greater than the set temperature value set and stored in the control device, the rain detection sensors (7) and (8) detect that there is an abnormality and the drying operation is started. cancel.

Effects of the Invention According to this invention, the temperatures detected by the outside temperature detection sensor (7) and the hot air temperature detection sensor (8) are compared immediately after the start of drying work and before hot air is generated from the burner (3), and the detected temperatures are compared. A temperature difference is detected by the detected temperature, and if this detected temperature difference is greater than or equal to the set temperature value, this rain detection sensor (7
), (8) are detected to be abnormal and grain drying is stopped, so the rain detection sensors (7), (8) deteriorate due to the characteristics of the rain detection sensors (7), (8). Since the temperature of the hot air generated from the burner (3) is not changed and controlled while there is a deviation in the detected temperature value detected by the burner (3), the grains may be split into 110% or crushed grains may occur. There is no possibility that drying of the grains will not be completed within a predetermined time.

Embodiment In the illustrated example, the machine wall (10) of the dryer (9) has a rectangular shape in plan view that is long in the front and back direction, and is made up of front and rear wall plates and left and right wall plates. 9) has a configuration in which an operating device t'1 (11) for controlling starting, stopping, etc. is detachably attached.

A grain collecting trough (12), which is V-shaped in front view and has a built-in rotationally driven transfer spiral, is provided at the center of the lower part of the machine wall (10) and extends in the front and back direction. On the upper side of the grain trough (12), drying chambers (2), (2) are provided in the vertical direction and communicated with each other, and at the bottom of the drying chambers (2), (2) there is a feeding valve (13) that feeds out the grains and allows them to flow down. , (13) are rotatably supported.

A hot air chamber (4) was formed inside the drying chambers (2), (2), and communicated with a burner (3) provided internally in a burner case (14) provided in the front wall plate. Air exhaust chambers (5), (5) are formed between the outside of the drying chamber (2), (2) and the left and right wall plates, and air exhaust chambers (5), (5) are formed in the rear wall plate. 41! (6). The hot air chamber (
4) The temperature of the hot air passing through the hot air chamber (4) is detected at the inner wall portion of the rear wall plate and the approximate center in the front-rear direction and vertical direction of the ventilation mesh plate forming the drying chamber (2). Hot air temperature detection sensors (8), (8), (8) are provided, a motor (15) is provided at the bottom of the rear wall plate, and the motor (15) operates the transfer spiral in the grain collecting trough (12). the delivery valve (13),
(13) and the exhaust fan (6), etc., are configured to be rotationally driven.

A fuel tank (18) is installed at the front of the dryer (9), and a fuel pump (18) is installed at the outer side of the lower plate of the burner case (15).
17), and a fuel hose (
18), the fuel pump (17) and the fuel supply pipe (19)
It is configured to supply fuel into the burner (3) through the
In addition, the combustion air is blown into the burner (3) through a blower duct (22) by rotating a blower (20) provided on the outer side of the upper plate of the burner case (14) with a blower motor (21). It is the composition.

A storage chamber (1) is formed above the drying chambers (2), (2), and ceiling plates (23), (2) are formed above the storage chamber (1).
3), and this ceiling board (23), (23) + 4゛8
-I amount, Kk J-? 1-■-Entun Yusei 1
Install the IJ-4 transfer gutter (24) in A, and install the IJ-4 transfer gutter (24).
A supply port for supplying transferred grains into the storage chamber (1) is opened in the center of 20, and a diffusion plate (25
) is provided, and the grains are uniformly diffused and returned into the storage chamber (1) using this diffusion plate (25).

The grain raising machine (2B) is removably attached to the front part of the front wall board,
Inside, a bucket conveyor (27) belt is stretched between the upper and lower boos, and a dispensing cylinder (28) is provided between the upper end and the starting end of the transfer gutter (24) to communicate with the lower end. A supply gutter (29) is provided to communicate with the terminal end of the grain collecting gutter (12), and a motor (30
), and this motor (30) rotates the packet conveyor (27) belt and the transfer spiral in the transfer gutter (24).

The operating device (11) is box-shaped, and the surface includes a start switch (31), a stop switch (32), a grain type setting arc (33), a hot air temperature setting setting pitcher (30), and a timer corner (35). ), etc., and an outside temperature detection sensor (7) for detecting outside air temperature is installed on the outside of the lower plate, and a control bag 21 (3G) is installed inside, and this control bag 2! (3B) is connected to each switch. (31), (32) and each setting (3
3), (34), and (35), each detection value detected by the input circuit (37), the outside temperature detection sensor (7), and the hot air temperature detection sensor (8) is A-
An A-D converter (38) that performs D conversion, this A-D converter (
An input circuit (37) to which the converted value converted in step 38) is input.
), the CPtJ (39) performs arithmetic and logical operations, comparison operations, etc. on various input values input from these input circuits (37) and (37), and receives various commands from this CPU (39) and outputs them. The configuration includes an output circuit (40), etc., and these input circuits (37) and (37).
, A-D converter (38), CPU (39), and output circuit (40) are connected, and this control device (3B) controls each of the motors (15), (21), (30).
), the fuel pump (17), etc., are configured to control starting and stopping.

The control device (3B) operates the grain type drawer (33) to a scale position suitable for the grain depending on the grain type, and adjusts the amount of grain stored in the storage chamber (1). When the hot air temperature setting knob (34) is operated to the appropriate scale position, the temperature of the hot air generated from the burner (3) is automatically set by this control device so that the set hot air temperature becomes the set hot air temperature. , the fuel pump (
This control device (17) is configured to control the outside temperature detected by the outside temperature detection sensor (7).
38) is increased or decreased, and the temperature of the hot air generated from the burner (3) is controlled to be higher or lower than the set hot air temperature. The hot air temperature detection sensor (8) detects this hot air temperature that is subject to change control, and the control device (36) detects the hot air temperature so that the detected hot air temperature becomes the same as the set hot air temperature that is subject to change control. Control the fuel pump (17),
It is configured to change and control the flow rate of fuel supplied into the burner (3).

Moreover, the control bag ffl (313) operates the start switch (31) to start the dryer (9) and operate the re-detection sensor (7), ( 8) detects a temperature difference by comparing the detected temperatures detected by the control device (36).
If the temperature is higher than the set temperature value that was set and memorized, the re-detection sensors (7) and (8) detect that there is an abnormality,
The dryer (9) is automatically controlled by the m control device (36) and automatically stopped.

Carrying out each setting (33), (34), (
35) and the start switch (31), the dryer (9) is started, and then hot air is generated from the burner (3) installed on the front wall plate, and this hot air blows onto the rear wall. By suctioning and exhausting air with the air exhaust 41 (6) provided on the plate, air is passed through the drying chamber (2) from the hot air chamber (4) and into the storage chamber (1) of the dryer (9). The accommodated grains are exposed to this hot air and dried while flowing down from this storage chamber (1) into the drying chamber (2), and are then fed out to the lower part of the feeding valve (13) 7 and passed through the lower transfer spiral. The grain is collected through the grain collection gutter (12) and then the supply gutter (
It is conveyed to the upper part by the conveyor (27), and the dispensing tube (28
) is fed into the transfer gutter (20), and the upper transfer spiral passes through the transfer gutter (24) onto the diffusion! When the set time set by the timer (35) has elapsed, the dryer (9) is automatically controlled by the control device (3B) of the operating device (11). will stop automatically.

Immediately after the start of this drying work and before hot air is generated from the burner (3), the detected temperature value detected by the outside temperature detection sensor (7) and the detected temperature value detected by the hot air temperature detection sensor (8) are under the control. The temperature difference between the detected temperature values detected by the re-detection sensors (7) and (8) is detected, and this detected temperature difference is detected by the control device (3B).
If the temperature is higher than the set temperature value, the re-detection sensors (7) and (8) are detected to be in an abnormal state; Then, the control device (3B) automatically controls and, if the detected temperature difference is below the set temperature value, detects that the rain detection sensors (7) and (8) are in a normal state. When the rain detection sensors (7) and (8) are detected to be in a normal state, the drying operation is continued, and during this drying operation, the temperature is changed according to the detected outdoor temperature detected by the outdoor temperature detection sensor (7). The temperature of the hot air generated from the burner (3) is controlled by changing the set temperature set in the control device (36) to a high temperature or a low temperature to dry the grains.

Immediately after the start of drying work and before hot air is generated from the burner (3), the detected temperature values detected by the rain detection sensors (7) and (8) are compared, and a temperature difference is detected based on the detected temperature values. Based on this detected temperature difference, it is detected whether the rain detection sensors (7) and (8) are normal or abnormal, and if they are detected to be abnormal, the dryer (9)
) is not controlled, so the rain detection sensor (7),
(8) While the characteristic deterioration still occurs, the burner (
3) Since there is no control over the temperature of the hot air generated,
There is no chance that the grains will turn or break, and the drying of the grains will not be completed within a predetermined time.

[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 partially cutaway front view, Fig. 3 is a partially cutaway side view, and Fig. 4 is a dryer. It is a partially enlarged front view. In the figure, (1) is the storage chamber, (2) is the drying chamber, (3) is the burner, (4) is the hot air chamber, (5) is the exhaust chamber, (6) is the exhaust fan, and (7) is the Outside temperature detection sensor (8) indicates a hot air temperature detection sensor.

Claims (1)

[Claims] A storage chamber (1) for storing grains is provided in the upper part, a drying chamber (2) is provided in the lower part for the grains to flow down, and a burner (3) is provided in the lower part.
) from the hot air chamber (4) to the drying chamber (2).
, an exhaust fan (6) is provided to suck and exhaust air through an air exhaust chamber (5), and an outside temperature detection sensor (7) for detecting outside air temperature is installed in the storage chamber (1). (4) is provided with a hot air temperature detection sensor (8) that detects the temperature of the hot air passing through the hot air chamber (4), and both detection sensors (7) and (8) are installed immediately after starting grain drying work. The grain is equipped with a control device that compares detected temperatures to detect a temperature difference, and when this temperature difference is equal to or higher than a set temperature value, detects and controls that both detection sensors (7) and (8) are abnormal. Abnormality detection device for grain dryer.