JPS61295487A - 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] Industrial applications The present invention relates to an abnormality detection device for a grain dryer.

Conventional technology Conventionally, an outside temperature detection sensor is attached to the tank wall of a dryer to detect the outside temperature. The grains are dried by controlling the temperature of the hot air generated.
Even if an abnormality occurred in the outside temperature detection sensor, this abnormality was not detected by the device.

Problems to be Solved by the Invention In a dryer for drying grain, a burner installed at the front of the dryer generates hot air, which is sucked by a blower installed at the rear of the dryer, so that the hot air is ventilated into the drying room. The grains flowing down the drying chamber are exposed to this hot air and dried, but during this drying process, the heat generated by the burner! If! degree,
17 controls are performed depending on the type of grain to be dried, the amount of grain to be kept dry, the outside air temperature, etc., but if an abnormality occurs in the outside temperature detection sensor that detects the outside air temperature, this outside temperature detection sensor will detect the outside air temperature. Therefore, even if the outside air temperature changes during drying work, the temperature of the hot air generated from the burner does not change, so the outside air temperature may become abnormally low Iff' or, conversely, abnormally high. If the drying process is carried out, the dried grains may have a shell side or may be crushed, or the drying of the grains may not be completed within a predetermined time.

Means for Solving the Problems This invention detects the temperature of outside air passing through a burner (3) built into a burner case (2) by blowing air with an air blower (1). A detection sensor (4) is provided to protrude into the burner case (2), and when the outside temperature detected by this outside temperature detection sensor (4) is higher than the set outside temperature, an abnormality alarm is issued and the drying An abnormality detection device for a grain dryer includes a control device for controlling the stoppage of machine operation.

Effect of the invention By sucking the hot air generated from the burner (3) at the front of the dryer with the generator (1) at the rear, this hot air circulates through the drying chamber, and the grains flowing down inside the drying chamber are The temperature of the outside air passing through the burner (3) is measured by an outside temperature detection sensor (4) protruding into the burner case (2) during this drying process. detected,
The temperature of the detected outside air is defined as the outside air temperature, and the temperature of the hot air generated from the heena (3) is controlled to a low temperature or high temperature depending on the detected outside air temperature to dry the grains. let

Further, when the detected outside air temperature detected by the outside air temperature detection sensor (4) is compared with the set outside air temperature set and recorded in the control device, and the detected outside air temperature is equal to or higher than the set outside air temperature, This control device issues an abnormality alarm via a buzzer, and at the same time stops the operation of the dryer and the grain drying process.

Effects of the Invention According to this invention, by providing the outside temperature detection sensor (4) in a state that protrudes into the burner case (2), the outside air that passes through the burner (3) part and is drawn into the dryer is reduced. By detecting the temperature of The temperature of the hot air generated from the burner (3) can be accurately controlled, and the detected outside air temperature and the set outside air temperature are compared, and an abnormality in the outside air temperature detection sensor (4) is detected. By controlling the dryer to stop, the grains will not be dried while the outside temperature detection sensor (4) remains in an abnormal state, so the grains will not turn to the shell side or become crushed. Moreover, the drying of the grains is completed within a predetermined time.

Embodiment In the illustrated example, the tank wall (6) of the dryer (5) 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. (5) has a structure in which an operating device (7) for controlling starting, stopping, etc. is detachably provided.

Located at the center of the lower part of the tank wall (6) and extending in the front-rear direction, there is a grain collecting trough (8
), and a drying chamber (9) is installed vertically above this grain collection gutter (8).
), (9) are provided and communicated with each other, and these drying chambers (9), (9
) At the bottom is a feeding pulp (10) that feeds out the grains and flows down.
, (10) are rotatably supported.

A hot air chamber (11) is formed between the drying chambers (9) and (9), and a burner (3) is installed in a box-shaped burner case (2) with a front wall panel. Air exhaust chambers (13), (13) are formed between the drying chambers (9), (9) and the +NrN left wall plate, and an air blower is installed in the rear wall plate. (1), this hot air chamber (11), this exhaust chamber (13), and (+3) have an inclined plate on the upper side and a serving J plate on the lower side. On the inner wall of the rear wall plate in the hot air chamber (1), there is a hot air temperature detection sensor (
14), and a motor (12) is provided at the lower part of the rear wall plate, and this motor (12) moves the transfer helix in the grain collection gutter (8), the delivery pulp (1o), (to), and Ik. It is configured to rotate the blower (1) and the like.

A fuel tank (15) is installed in the curved part of the dryer (5), and a fuel pump (15) is installed in the outside of the lower plate of the burner case (2).
16), from the fuel tank (+5) to the fuel hose (+7), the fuel pump (1B) and the fuel supply pipe (18).
), and the combustion air is supplied to the burner (3) through a blower motor (20). The structure is such that the fuel is rotated and blown into the heat chamber (3) through the air blowing tough 1-(41), and this fuel and combustion air are mixed and become a combustion flame from the burner (3). This burner case (
2) An outside temperature detection sensor (4) is provided in a state that protrudes inward, and the temperature of the outside air passing through the burner case (2) is detected as the outside air temperature. Yes, the outside air passing through this burner (3) part and this eight-
This is a configuration in which the combustion flame ejected from the pipe (3) mixes with the hot air for drying.

A storage chamber (21) is formed above the drying chambers (9), (9), and a ceiling plate (22) is formed on the h side of this storage chamber (21).
, (22), and a transfer gutter (23) equipped with a transfer helix is provided along these ceiling plates (22), (22), and in the center of this transfer gutter (23), the transferred grain is transferred to this storage chamber. (21
), a diffusion plate (24) is provided below the supply port, and the diffusion color (24) is used to uniformly diffuse and return grains into the storage chamber (21). It is.

The y11 part (25) is removably attached to the front part of the front wall board, and a bucket conveyor (26) belt is stretched between the upper and lower pulleys inside, and a belt is placed between the upper end and the starting end of the transfer gutter (23). A dispensing tube (27) is provided and communicated with the grain collection gutter (8), and a supply gutter (28) is provided between the lower end and the terminal end of the grain collection gutter (8) to communicate with each other. 25) A motor (2S) is installed in one part, and this motor (2!3) operates the bucket conveyor (2El) belt and the transfer gutter (23).
It is configured to rotate the transfer helix, etc. inside.

The operating device (7) is box-shaped, and the surface of the box has a start switch (30), a stop switch (31), a hot air temperature setting hole (32), and a grain type setting hole (33).
, a timer (30) and a buzzer (40) are provided,
Inside, a control device (35) is provided, and this control device (35) controls the switches (30), (31) and the setting knobs (32), (33).

An input circuit (38) into which operations such as (34) are input, an A-D converter ( 37), an input circuit (36) into which the converted value converted by this A-D converter (37) is input, and various input values input from these input circuits (36), (36) are subjected to arithmetic and logical operations. The configuration includes a CPU (38) that performs comparison calculations, etc., and an output circuit (39) that receives and outputs a name command from the (, PU (38)), and these input circuits (36), (36) ), A-D converter (37),
The CPU (38) and the output circuit (39) are connected, and this control device (35) controls the fuel pump (+e), the buzzer (40), and each motor (1).
2), (20), (29), etc. are configured to control starting, stopping, etc.

The control device (35) compares the detected outside air temperature detected by the outside air temperature detection sensor (4) with a set outside air temperature set and stored in this control device (35), and determines whether this detected outside air temperature corresponds to the detected outside air temperature. When the outside temperature is higher than the set temperature, the buzzer (40
) to issue an alarm, and at the same time the dry smoke machine (
5) is configured to automatically stop the system.

The control device (35) controls the hot air temperature setting device (32).
Set the burner (3) so that the hot air temperature reaches the set temperature set in
), and the temperature of the hot air generated from the heating space (3) is controlled in conjunction with the outside air temperature detected by the outside air temperature detection sensor (4). It is configured to increase the set temperature stored in this control device (35) to control the change to a high temperature, or decrease it to control the change to a low temperature I-bar, and depending on the outside temperature, the burner (3) The hot air temperature generated from the burner (3) is controlled to be changed by a predetermined amount, and the hot air temperature detection sensor (14) detects the hot air temperature generated from the burner (3), and the detected hot air temperature and the set hot air temperature are Compare the temperature and make sure that the detected hot air temperature is the same as the set hot air temperature.
The fuel pump (16) is controlled to control the flow rate of fuel supplied into the burner (3).

In addition, the outside air temperature detected by the outside air temperature detection sensor (4) is compared with the outside air temperature detected a predetermined time ago, and the detected temperature difference obtained by this comparison is compared with the outside air temperature detected by the outside air temperature sensor (4).
), and if the detected temperature difference is greater than or equal to the set value, the buzzer (40
) may be configured to issue an alarm and at the same time automatically stop the dryer (5).

Each setting of the operating device (7) (32), (33)
.

(34) and the start switch (30), the hot air generated from the burner (3) installed on the front wall plate is sucked by the blower (1) installed on the rear wall plate. Therefore, the drying room (9) and the ventilation room (13) are separated from the hot air room (11).
), the wind is suctioned and exhausted by a wind blower of 11 m (1), and is then sent to a dryer (5
) The grains stored in the tank wall (6) of the storage chamber (21) are exposed to this hot air and dried while flowing down the drying chamber (9), and are then sent to the lower part by the delivery valve (10). The grains are fed out, transferred and discharged through the grain collection gutter (8) into the supply gutter (28) by the lower transfer helix, transported to the upper part by the grain hoist (25), and transferred Ijfl (23) by the upper transfer helix. spread through @ (2
4) It is transferred and supplied to the storage chamber (21) by the diffusion plate (24), and is circulated and dried until the set time set by the timer (33) is reached.
The control device (35) of the operating device 21 (7) automatically stops the dryer (5) to stop the grain drying operation.

During this drying work, the detected outside air temperature detected by the outside air temperature detection sensor (4) is compared with the set outside air temperature set in the control device 21 (35), and the detected outside air temperature is higher than the set outside air temperature. Sometimes, the control device (35) activates a buzzer (4).
0), the dryer (5) is automatically stopped and controlled by the control device (35) to stop the grain drying operation.

Also, during this drying work, the temperature of the hot air generated from the heat exchanger (3) is controlled to a high temperature based on the detected outside air temperature detected by the outside air temperature detection sensor (4).

The grains are also dried by controlling the temperature to a low temperature.

Since the outside temperature detection sensor (4) is provided to protrude into the eight case (2), the outside temperature detection sensor (4) can accurately detect outside air temperature. In conjunction.

The fuel pump (16) controls the /<-s(3)
) The temperature of the hot air generated by the dryer (5) is precisely controlled, and the dryer (5) is automatically stopped depending on the detected outside air temperature, so that the grains are not broken or crushed. There is no occurrence of drying, and the grains are always dried 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,) indicates an air blower, (2) indicates a case, (3) indicates an eight, and (4) indicates an outside temperature detection sensor.

Claims (1)

[Claims] The burner case (2) is raised by the wind blower (1).
An outside temperature detection sensor (4) is provided to protrude into the burner case (2) and detects the temperature of the outside air passing through the burner (3) section built into the burner case (2). ) is an abnormality detection device for a grain dryer, which is equipped with a control device that issues an abnormality alarm when the detected outside air temperature is higher than a set outside air temperature, and at the same time controls the operation of the dryer to be stopped.