JPH0823472B2 - Grain transfer device for grain dryer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain transfer device for a grain dryer.

2. Description of the Related Art Conventionally, a transfer spiral that receives the supply of grains and transfers it into a storage chamber is mounted, and a transfer gutter having an open / close valve that is openable and closable is provided on the bottom surface and is stretched into this storage chamber. The grain transfer device is provided with an amount sensor for detecting the amount of grains, but does not have an opening / closing sensor for detecting the open state of the on-off valve.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Grain to be supplied into a transfer gutter is transferred by a transfer spiral in the transfer gutter and supplied into a storage chamber. In the amount state, the swelling amount sensor operates to detect the full amount state, and the dryer is automatically stopped and controlled by the detection of the full amount state.

In this dryer, when different grains, for example, grains to be dried are changed from barley grains to paddy grains and dried, in order to prevent the mixture of barley grains into the grain, an opening / closing valve on the bottom part of the transfer gutter is used. The barley grains remaining in the transfer gutter are dropped and discharged to the outside of the machine for cleaning, but after this cleaning, the on-off valve is forgotten to be closed and the grain of rice grains is left open. When the staking operation was performed, this paddy grain was biased to only one side of the storage chamber, and a certain amount of paddy grains could not be loaded.Therefore, the open state of the opening / closing valve and the storage It is intended to detect both the full state of the grain in the room.

Means for Solving the Problems The present invention has been proposed in view of the above problems, and has taken the following technical means. That is, a transfer gutter 4 having a transfer spiral 2 for receiving grain supply and transferring it into the storage chamber 1 is provided in the upper part of the dryer, and an opening / closing lid 3 is provided in the lower part of the transfer gutter 4 so as to be openable and closable. A sensor 5 for detecting the opened state of the opening / closing lid 3 by dropping and abutting the grain is provided below the opening / closing lid 3, and the sensor 5 is also used as a sensor for loading the amount of grain stuck in the storage chamber 1. The grain transfer device of the grain dryer is characterized by the above.

Effect of the Invention Grain supplied into the transfer gutter (4) is transferred by the transfer spiral (2) in the transfer gutter (4) and supplied into the storage chamber (1), and the storage chamber (1) When the inside is full of grains, the stake amount sensor (5) operates in this full state to detect the full state, and the dryer is automatically stopped and controlled by the detection of the full state.

In order to prevent mixing of barley grains into the paddy grains when different grains, for example, grains to be dried are switched from barley grains to paddy grains in this dryer, the bottom part of the transfer gutter (4) is used. The open / close lid (3) is operated to open, and the barley grains remaining in the transfer gutter (4) are dropped and discharged to the outside of the machine for cleaning. After this cleaning, the open / close lid (3) is removed. When the rice grains are tightened with the bolts left unclosed and in the open state, a large amount of grains are supplied from the opening of the transfer gutter (4) into the storage chamber (1). The swelling amount sensor (5) is activated by the particles, and this operation detects that the opening / closing lid (3) of the transfer gutter (4) is in an open state.

EFFECTS OF THE INVENTION The present invention has the following technical effects.

That is, according to the present invention, a transfer gutter 4 containing a transfer spiral 2 for receiving grains and transferring them into the storage chamber 1 is provided in the upper part of the dryer, and an opening / closing lid 3 can be opened and closed in the lower part of the transfer gutter 4. And an opening / closing sensor 5 for detecting the opened state of the opening / closing lid 3 by dropping and abutting the grain below the opening / closing lid 3,
Since the opening / closing sensor 5 is also used as a sensor for detecting the amount of grains to be stuck in the storage chamber 1, the single sensor 5 is used to forget to tighten the opening / closing lid 3 after cleaning the transfer gutter 4. The detection and the full state can be performed, and it is not necessary to provide two or more sensors. Therefore, it is possible to configure at low cost and prevent the occurrence of defects in the grain sticking work.

Example In addition, in the illustrated example, (6) is a grain dryer, and inside the dryer (6), the upper part of the drying chamber (7) partitioned by ventilation nets is opened to the storage chamber (1). The lower part is a grain collecting gutter (9) with a transfer spiral mounted through a feeding valve (8).
And the storage chamber (1) is connected to the machine wall (10).
A transfer gutter (4) is provided on the upper side of the storage chamber (1) surrounded by a ceiling plate (11) and a transfer spiral (2). The transfer gutter (4) has a central part. Is provided with a supply port for supplying transfer grains into the storage chamber (1), and a diffusion plate (12) is provided below the supply port, and the storage chamber (1) is provided with the diffusion plate (12). It is configured to evenly diffuse and reduce grains into the inside of the transfer gutter (4) between the vicinity of the start end of the bottom and the vicinity of the diffuser plate (12) so that the bottom is opened and closed. An opening / closing lid (3) is freely provided, and the opening / closing lid (3) is supported by a plurality of hinges (13) and a support tool (14).

A support arm (15) is provided in a hanging state on the bottom surface of the starting end of the transfer gutter (4), and a tension amount sensor (5) is provided at the lower end of the support arm (15). (5) has a structure in which a switch that turns on and off when pushed by a large amount of grains is installed, and when the inside of the storage chamber (1) is full of grains, it is pushed by the full grains. The lever is operated in the ON state, and the dryer (6) is automatically stopped and controlled in association with the operation in the ON state, and the work of loading the grain into the storage chamber (1) is performed. At this time, if the opening / closing lid (3) of the transfer gutter (4) remains open, a large amount of grains fall from the opening of the transfer gutter (4), and The switch is pushed to operate the switch in the ON state, and the dryer (6) is automatically stopped in conjunction with the operation in the ON state. You. When the open state is detected, an alarm buzzer may be provided without automatically stopping the dryer (6) and an alarm may be issued by the alarm buzzer.

The hot air chamber (16) is formed between the insides of the drying chambers (7), (7), and the exhaust chambers (17) are formed outside the drying chambers (7), and the machine wall on the front side is formed. The burner case (19) containing the burner (18) and the operating device (20) for starting and stopping the dryer (6) are provided in the (10). It is configured to communicate with the hot air chamber (16), and an exhaust fan (30) and a motor (31) are provided on the machine wall (10) on the rear side, and the exhaust fan (30) and each exhaust chamber are provided. The motor (31) rotates the exhaust fan (30), the feeding valves (8) and the transfer spirals in the grain collecting trough (9). A pressure detection hole (21) for detecting the pressure in the hot air chamber (16) is formed in the machine wall (10) on the front side forming the hot air chamber (16).
The operating device (20) is provided with a pressure sensor (22) for detecting the pressure in the hot air chamber (16), and the pressure sensor (22) and the pressure detecting hole (21) are connected to each other. Configuration,
By detecting the pressure in the hot air chamber (16), the amount of dry air flowing through the drying chamber (7) is calculated and detected from the detected pressure.

The grain raising machine (23) is provided in the front part of the machine wall (10) on the front side, and a bucket conveyor (24) belt is stretched between the upper and lower pulleys inside the upper part and the transfer gutter (4) starting end part. And a supply gutter (26) is provided between the lower end and the end of the grain collecting gutter (9) to communicate with each other. The motor (2
7) is provided, and the bucket conveyor (2
4) is configured to rotate and drive the transfer spiral (2) and the diffusion plate (12) in the transfer gutter (4), and is conveyed to the upper part by a bucket conveyor (24) in the substantially vertical center. It has a structure in which a moisture sensor (29) containing a motor (26) that detects the moisture content of this crushed grain is provided at the same time as it receives the grain that falls into it and crushes this grain at the same time. Is a configuration in which a stake hopper for staking the grain is provided.

 The operation of the above embodiment will be described below.

Operate the operating device (20) to start the dryer (6),
In the stake-in operation, when the grains are put into the stake-in hopper, they are conveyed to the upper part by the bucket conveyor (24) and supplied into the transfer gutter (4) through the discharge cylinder (25). The transfer spiral (2) transfers and supplies it to the diffusion plate (12), and the diffusion plate (12) evenly supplies and supplies it into the storage chamber (1), and the storage chamber (1) is fully filled with grains. Then, the switch of the overhang sensor (5) is pressed with this full amount of grains to operate in the on state, and this operation detects that the inside of the storage chamber (1) is full of grains. The dryer (6) is automatically stopped in association with this detection.

If the opening / closing lid (3) of the transfer gutter (4) is left open during this staking operation, a large amount of the grains being spilled will fall from the opening of the transfer gutter (4). , The falling grain pushes the switch of the stake amount sensor (5) to activate the switch, and this action detects that the opening / closing lid (3) is in the open state, and is linked to this detection. The dryer (6) is automatically stopped.

When the stake-in work is finished and the drying work is started, the dryer (6), the burner (18) and the moisture sensor (29) are started by operating the operating device (20),
Hot air is generated from this burner (18), this hot air is passed from the hot air chamber (16) to the drying chamber (7), and is sucked and exhausted by the air exhauster (30) via the air exhaust chamber (17), and the storage chamber The grains flowing down from the drying chamber (7) from (1) are exposed to this hot air to be dried, and are fed to the lower portion by the feeding valve (8) to flow down to the inside of the grain collecting trough (9). Is supplied to the grain collecting gutter (9) through the supply gutter (26) into the grain raising machine (23) by a lower transfer spiral, and is conveyed to the upper part by the bucket conveyor (24). It is supplied to the inside of the transfer gutter (4) through the throw-out tube (25), and the transfer spiral (2) inside the transfer gutter (4)
It is transferred and supplied onto the diffusion plate (12) by
When the moisture sensor (29) detects the same grain moisture as the finishing target moisture by diffusing and reducing it evenly into the storage chamber (1) and circulating drying in 2), it is automatically controlled by the operating device (20). Then, the dryer (6) is automatically stopped.

[Brief description of drawings]

1 shows an embodiment of the present invention. FIG. 1 is an overall side view of a partially rupturable dryer, FIG. 2 is an overall front view of a partially rupturable dryer, and FIG. FIG. 4 is a sectional view taken along line AA of FIG. 4, and FIG. 4 is an enlarged perspective view of a part of the dryer. In the figure, reference numeral (1) is a storage chamber, (2) is a transfer spiral, and (3)
Is an opening / closing lid, (4) is a transfer gutter, and (5) is a stake amount sensor.

Claims (1)

[Claims] 1. A transfer gutter 4 having a transfer spiral 2 for receiving grain supply and transferring it into a storage chamber 1 is provided at the upper part of a dryer, and an opening / closing lid 3 can be freely opened and closed at a lower part of the transfer gutter 4. And a sensor 5 for detecting the open state of the opening / closing lid 3 by dropping and abutting the grain below the opening / closing lid 3. The sensor 5 is an amount of the grain loaded in the storage chamber 1. A grain transfer device for a grain dryer, which is also used as a sensor.