JP2897417B2 - Grain dryer dust remover - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dust remover for a grain dryer.

2. Description of the Related Art Conventionally, grains are sequentially flowed down from an upper grain storage chamber to a lower grain drying chamber and a grain collecting gutter, and supplied from the grain collecting gutter by a transfer spiral in the grain collecting gutter. The hot air from the hot air device is blown from the air blowing chamber to the drying chamber while the circulation is performed by transferring the water to the grain raising machine through the gutter and transferring it to the upper portion by the grain raising machine and supplying it to the storage chamber. Grains sucked and exhausted by an air blower and flowing down in the drying chamber are dried by being exposed to the hot air.During this drying operation, the inside of the supply gutter is blown by a dust suction device provided above the supply gutter. This is a dust removal device that sucks dust mixed into the passing grain and discharges it to the outside of the machine. Dust that has accumulated on the bottom plate forming the blower chamber starts the next grain drying after the grain drying is completed. By the worker
This was a method of cleaning the inside of the blower room.

Problems to be Solved by the Invention The grains accommodated in the grain storage chamber of the grain dryer are sequentially fed out from the storage chamber to the lower grain drying chamber and the inside of the grain collecting trough, and are flowed down. The transfer spiral from inside the grain collecting gutter through the supply gutter to the inside of the grain raising machine by the transfer spiral, and while the circulation carried by the grain raising machine to the upper part and supplied to the storage chamber is repeated, the hot air from the hot air device is repeated. Is passed through the drying chamber to the drying chamber, and is sucked and exhausted by an air blower, so that the grains flowing down in the drying chamber are exposed to the hot air and dried.

During this drying operation, dust mixed into grains passing through the supply gutter by a dust suction device provided above the supply gutter,
It is sucked by this dust suction device and discharged out of the device. Dust deposited on the bottom plate forming the blower chamber is scraped by an operator after the end of grain drying and before the start of the next grain drying,
This blower room is cleaned.

During this drying operation or at the time of starting the next drying operation, the dust accumulated on the bottom plate of the blower chamber is automatically removed, or the dust mixed into the circulating grains by one dust suction device is used. And dust accumulated in the blower chamber.

Means for Solving the Problems According to the present invention, the grains are sequentially flowed down from the upper grain storage chamber 1 into the lower grain drying chamber 2 and the grain collecting gutter 3 and are installed in the grain collecting gutter 3. The transfer spiral 4 transfers the hot air from the hot air blower 7 to the grain raising machine 6 through the supply gutter 5 to the grain raising machine 6 while repeating the circulation by feeding the grain to the upper part by the grain raising machine 6 and supplying the same into the storage chamber 1. 8 is provided to the drying chamber 2 to be sucked and exhausted by an air blower 9 for drying, and a dust suction machine 10 for sucking and discharging dust in the supply gutter 5 is provided on the upper side of the supply gutter 5. Machine
A dust passage 11 connected to the air passage 10 is provided below the blower chamber 8, and a bottom plate 12, which is openable and closable, forming the blower chamber 8, is connected to the exhaust passage
When the bottom plate 12 is opened, dust accumulated on the bottom plate 12 is configured to be used in combination with the upper wall plate forming the exhaust wall 11.
A dust removing device for a grain dryer characterized by being supplied inside and discharged outside the machine.

Effect of the Invention The grains stored in the grain storage chamber 1 of the grain dryer are sequentially fed out from the storage chamber 1 into the lower grain drying chamber 2 and the grain collecting gutter 3 and flow down. Circulation that is transported and supplied from the grain collecting gutter 3 to the grain raising machine 6 through the supply gutter 5 by the transfer spiral 4 in the gutter 3, conveyed to the upper part by the grain raising machine 6, and supplied into the storage chamber 1. Is repeated, the hot air from the hot air device 7 passes from the blowing chamber 8 to the drying chamber 2 and is sucked and exhausted by the air blower 9 so that the grains flowing down in the drying chamber 2 , And is dried by being exposed to the hot air.

During this drying operation, a dust suction device provided above the supply gutter 5 is provided.
The dust mixed into the grains passing through the supply gutter 5 is sucked by the dust suction device 10 and discharged to the outside through the dust discharge passage 11. The bottom plate 12 forming the blower chamber 8 is kept closed during the drying operation by the positive pressure of the dust suction device 10, and when the drying operation is completed, dust accumulates on the bottom plate 12. The bottom plate 12 is controlled to an open state by the weight of the dust, the accumulated dust is supplied from the bottom plate 12 to the inside of the dust passage 11, and the next time the grain drying starts, the dust is dried. When the dust suction device 10 starts, the dust in the dust discharge passage 11 is discharged to the outside by the wind of the dust suction device 10.

According to the present invention, during the drying operation of the grain, dust mixed into the grain is sucked by the dust suction device 10 and discharged to the outside through the dust discharge passage 11, and when the drying of the grain is finished. The dust accumulated on the bottom plate 12 forming the blower chamber 8 is automatically supplied to the dust passage 11 when the bottom plate 12 is opened and the next grain drying starts. Then, the air is exhausted outside by the dust collector 10. As a result, the dust mixed in the grain and the accumulated dust are automatically discharged, which is convenient, and the dust collector 10 is inexpensive because one dust collector 10 performs two roles.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

The figure shows a state in which a moisture sensor 14 for detecting grain moisture, a hot air device 7 for generating hot air, and the like are mounted on a circulation type grain dryer 13 for drying grains.

The dryer 13 has a rectangular shape that is long in the front-rear direction, and a transfer gutter 16 and a ceiling plate 17 in which a transfer spiral is rotatably mounted are provided above the machine wall 15, and grains are stored below the ceiling plate 17. A grain storage chamber 1 is formed.

At the lower side of the storage room 1, the left and right air exhaust chambers 18, 18
The left and right grain drying chambers 2 and 2 are provided between the drying chamber 2 and the air blowing chamber 8 at the center, and the drying chamber 2 is provided between the drying nets 20 and 20 on both the left and right sides. At the lower part, feed valves 19, 19 for feeding and flowing down the grains are rotatably supported.

The lower part of the drying chambers 2, 2 is connected to a grain collecting gutter 3 in which a transfer spiral 4 is rotatably provided.

The left and right sides of the bottom plate 12 forming the blower chamber 8 are provided in an inclined state toward the center, and the center is provided to be openable and closable. It is configured to be in the open state when in the stop state and to be in the closed state when in the operating state.

On the front side of the machine wall 15, the hot air device 7 including a burner case 22 and the like in which a burner 21 is installed is detachably mounted on the outer surface of the machine wall 15 so as to correspond to the inlet side of the blower chamber 8. An operating device 23 for starting and stopping the burner 21, the moisture sensor 14, and the dryer 13 for each of the work of inserting, drying and discharging is detachably mounted.

On the rear side of the machine wall 15, there is formed an exhaust passage chamber 24 which can communicate with the left and right exhaust chambers 18 and 18. And an exhaust motor 26 for driving the exhaust 9 to rotate.

27 is a valve motor for reducing the feed valves 19, 19
It is configured to be driven to rotate via 8.

A fuel pump 29 having a fuel valve is provided outside the lower plate of the burner case 22, and the fuel pump 29 sucks the fuel in the fuel tank 30 and supplies the fuel to the burner 21 by opening and closing the fuel valve. Further, on the outside of the upper plate, there is provided a speed change blower motor 32 for driving the speed change rotation of the blower 31, and the combustion air corresponding to the supplied fuel amount is blown to the burner 21 by the blower 31.

At the center of the bottom of the transfer gutter 16 in the front-rear direction, a supply port for supplying the transfer kernels into the storage chamber 1 is provided, and the grains are uniformly diffused into the storage chamber 1 below the supply ports. The configuration is such that a diffusion plate 33 for reduction is provided.

The grain raising machine 6 is provided in front of the machine wall 15 and has a belt with a bucket conveyor 35 stretched inside. The upper end of the grain raising machine 6 is provided with a discharge cylinder 36 between the transfer gutter 16 and the start end thereof. The lower end has a configuration in which a supply gutter 5 is provided to communicate with the end portion of the grain collecting gutter 3.

Numeral 34 denotes a grain raising motor, which is configured to rotationally drive the belt with the bucket conveyor 35, the transfer spiral in the transfer gutter 16, the diffusion plate 33, and the like, and the transfer spiral 4 in the grain collection gutter 3 It is configured to be rotationally driven via the belt with the bucket conveyor 35.

At the substantially vertical center of the grain raising machine 6, the moisture sensor 14 for detecting grain moisture is provided. The moisture sensor 14 is driven by the transmission of an electrical measurement signal from the operating device 23, the moisture motor 37 is rotated, and the respective components of the moisture sensor 14 are driven to rotate. At the same time as receiving the grains, the grains are pinched and pulverized, and at the same time, the water content of the pulverized grains is detected.

On the upper side of the supply gutter 5, there is provided a dust suction device 10 for sucking dust mixed in grains passing through the supply gutter 5, and a dust passage 11 for discharging dust sucked by the dust suction device 10 is provided. The dust exhaust passage 11 and the dust suction device 10 are provided below the bottom plate 12 of the blower chamber 8 in the grain collecting gutter 3 and are connected to each other. The dust accumulated on the bottom plate 12 is opened at the end of the drying operation, the bottom plate 12 is opened, the dust is supplied to the inside of the dust passage 11, and the dust is dried again. At the start of the work, the air is exhausted outside by the blast of the dust suction device 10 and
The inside is automatically cleaned, and when drying,
The bottom plate 2 is configured to be kept closed by the positive pressure of the dust suction device 10 to provide a dust removing device.

An air passage chamber 40 is provided which communicates between a bottom plate 38 at the start end of the dust discharge passage 11 and an upper plate 39 at the end of the grain collecting gutter 3. An opening 41 is provided, and an openable / closable blower valve 42 is provided at the blower opening 41, and an exhaust port 44 is provided at the bottom plate 43 of the supply gutter 5, and the exhaust port 44 is openable and closable. An exhaust valve 45 is provided.
By operating the air vent valve 42 and the exhaust valve 45 in an open state, the blast from the dust suction device 10 passes through the exhaust passage 11, the ventilation passage chamber 40, and the collection gutter 3 to the supply gutter 5. The air is discharged from the exhaust port 44 to the outside of the machine, and the remaining grains in the collection gutter 3 and the supply gutter 5 are discharged to the outside of the machine by the exhaust air. The opening and closing of the blower valve 42 and the exhaust valve 45 may be performed manually or automatically.

 Hereinafter, the operation of the above embodiment will be described.

By operating the operating device 23, each part of the grain dryer 13, the burner 21, the moisture sensor 14 and the like are started, and the burner 21
Hot air is generated from the air blowing chamber 8 and the grain drying chamber.
The grains stored in the grain storage chamber 1 are sucked and exhausted by the blower 9 through the exhaust chambers 18, 18 and the exhaust path chamber 24 after passing through the storage chambers 2 and 2. 1 through the drying chambers 2, 2 while being exposed to this hot air while being dried, being fed to the lower portion by feed valves 19, 19, flowing down, and passing through the collecting gutter 3 through the supply gutter 5 to the grain raising machine. 6 is transported and supplied by a lower transport spiral, transported upward by a bucket conveyor 35, and transferred via a discharge tube 36 to a transport gutter.
The water is then supplied from the transfer trough 16 to the diffusion plate 33 by the upper transfer spiral, and is uniformly diffused and reduced into the storage chamber 1 by the diffusion plate 33 to be circulated and dried.
When the grain moisture detected by the process reaches the finish target moisture, the dryer 5 is automatically stopped to stop the grain drying.

At the time of this drying operation, the dust mixed in the grains passing through the supply gutter 5 is sucked by the dust suction device 10 and the dust exhaust passage 11
Is discharged out of the machine. When the remaining kernels in the machine body are discharged, by operating the blower valve 42 and the blower valve 45 in an open state, the blast from the dust suction device 10 is blown from the dust passage 11 to the blower passage chamber. 40, the air is exhausted outside the machine through the grain collecting gutter 3 and the supply gutter 5, and the remaining air in the grain collecting gutter 3 and the supply gutter 5 is discharged outside the machine by the exhausted air. .

When the drying of the kernels is completed, the bottom plate 12 of the blower chamber 8 is opened, and the dust accumulated on the bottom plate 8 is supplied to the dust discharge passage 11 and the next drying operation is started. Then, the dust is exhausted to the outside by the blast of the dust suction device 10.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side sectional view of a part of a grain dryer, FIG. Is a sectional view taken along line AA of FIG. 2, FIG. 4 is a front view of a part of the grain dryer, and FIG. 5 is a rear view of a part of the grain dryer. DESCRIPTION OF SYMBOLS 1 ... Grain storage room 2 ... Grain drying room 3 ... Grain collecting gutter 4 ... Transfer spiral 5 ... Supply gutter 6 ... Grain raising machine 7 ... Hot air device 8 … Blower room 9 …… Blower, 10… Dust absorber 11 …… Dust passage, 12 …… Bottom plate

Claims (1)

(57) [Claims] 1. Grain is allowed to flow down from an upper grain storage chamber 1 into a lower grain drying chamber 2 and a grain collecting trough 3 in order.
The hot blast from the hot blast device 7 repeats the circulation by feeding and feeding to the grain raising machine 6 through the supply gutter 5 by the transfer spiral 4 which is provided inside, and transporting it to the upper part by the grain raising machine 6 and supplying it into the storage chamber 1. Is provided from the blower chamber 8 to the drying chamber 2 to be sucked and exhausted by the air blower 9 for drying, and a dust suction machine 10 for sucking and discharging the dust in the supply gutter 5 is provided above the supply gutter 5. , The dust collector 10
A dust passage 11 is provided below the blower chamber 8 and is connected to the bottom plate 12 which is openably and closably formed to form the blower chamber 8.
The dust is deposited on the bottom plate 12 in an open state of the bottom plate 12 to supply the dust into the exhaust passage 11 and discharge the dust outside the machine when the bottom plate 12 is opened. Dust remover for grain dryer.