JP3243830B2 - Hot air device of grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air device for a grain dryer.

[0002]

2. Description of the Related Art Conventionally, grains are fed from a grain storage chamber to a grain drying chamber by a feeding valve, flow down a down-flow shelf, are supplied to a grain collecting gutter, and are circulated. By passing through the drying chamber, it is exposed to the hot air and dried. The burner was a hot air device that was fixed to the inside of the machine wall below the falling shelf and did not move.

[0003]

The grains accommodated in the grain storage chamber of the grain dryer are fed from the storage chamber into the grain drying chamber by a feeding valve, and flow down the downflow shelf to collect the flue. Hot air generated from the burner while being supplied and circulated
By passing through the drying chamber, it is exposed to the hot air and dried.

[0004] If a defect or the like occurs in the burner during the drying operation, the burner provided in the machine wall below the falling shelf is removed, repaired, inspected, etc., and then reinstalled. The removal and installation of the burner was difficult due to being inside the machine wall, but it is intended to make this easier.

[0005]

According to the present invention, the grains are fed out from the upper grain storage chamber 8 to the lower grain drying chamber 9 by the rotation drive of the feeding valve 12 and are fed from the falling shelf 14 to the grain collecting gutter 13. While flowing down, hot air generated from the burner 3 is blown into the drying chamber 9.
A grain dryer for drying by ventilation to the burner 3
Moving back and forth along the holding frame 15 provided inside the side wall 5
A flexible hose 26 connected to a fuel tank 27 provided outside the machine frame and for supplying fuel to the burner 3 is provided detachably on the outside of the machine frame with respect to the fuel tank 27-side joint fitting 28; holding the above-mentioned burner 3
It is characterized in that it is configured to be moved forward along the holding frame 15 from the state located below the falling shelf 14 and to be taken out from the front side surface.

[0006]

The grains stored in the grain storage chamber 8 of the grain dryer are fed from the storage chamber 8 through the grain drying chamber 9 by the feeding valve 12 and flow down the downflow shelf 14 to be collected. The hot air generated from the burner 3 passes through the drying chamber 9 while being circulated while being supplied to the grain trough 13, and is exposed to the hot air and dried.

[0007]

[0008]

If a defect or the like occurs in the burner 3 during the drying operation, for example, a cover provided on the front machine wall 5 is removed, and the inner surface of the side machine wall 5 is formed below the downflow shelf 14. The burner 3 provided is moved forward to perform repair, inspection, and the like. The burner 3 and the fuel tank 27 are connected by a flexible hose 26, and a fitting 28 of the flexible hose 26 on the fuel tank 27 side. The flexible hose 26 can be separated from the outside of the machine frame, so that the flexible hose 26 does not hinder the above-described movement forward of the burner 3 by performing the separation work in advance.
The burner 3 can move smoothly.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. The figure shows a circulation type grain dryer 1 for drying grains.
1 shows a state in which a moisture sensor 2 for detecting moisture in grains and a hot air device 4 including a burner 3 for generating hot air are mounted.

The dryer 1 is provided with a transfer trough 6 and a ceiling plate 7 on which a transfer spiral is rotatably mounted above a machine wall 5 in a rectangular shape which is long in the front-rear direction. A grain storage chamber 8 for storing grains is formed. Grain drying room 9
In the lower side of the storage chamber 8, four slopes are provided in an inclined state between the central and left and right triangular exhaust chambers 10, 10, 10 and the right and left rhombic air blow chambers 11, 11. At the lower part of the confluence of the outer and inner drying chambers 9, 9, a feed valve 12 for feeding and flowing down grains is rotatably supported, respectively.

The grain collecting trough 13 is connected to falling shelves 14 and 14 which are inclined from both left and right sides, and a transfer spiral is rotatably supported at the center, and is provided below each of the drying chambers 9 to communicate therewith. I have. The holding frame 15 has an L-shaped upper guide plate 18 and a lower guide plate 19 fixed to the upper and lower ends of a front mounting bracket 16 and a rear mounting bracket 17 on the front and rear sides. The upper and lower portions of the rear mounting brackets 16 and 17 are provided on the outer side surface of the side wall 5 on one side below the flow-down shelf 14, respectively.
Are provided with bolts 20 ′ on the inner surface at the position where is provided.

The burner 3 comprises a front combustion section 21, an intermediate air blower cylinder 21 ', a rear filter section 22', and the like. The upper burner stay 22 and the lower burner stay 23 are fixed, and the upper burner stay 22 overlaps the upper guide plate 18 and the burner stay 23 overlaps the lower guide plate 19 and slides the burner 3 in the front-rear direction. It is configured to move freely. The burner 3 is provided with a fuel pump 24 having a fuel valve on the outer peripheral portion of the blower cylinder 21, and one end of the fuel pump 24 is provided with a flexible hose 26 having a joining fitting 25 which is joined to the tip portion with one touch.
The fuel tank 27 is provided with a flexible hose 29 having a joint fitting 28 that is joined to the tip portion with one touch.
These joining fittings 25 and 28 are configured to be joined by one touch.

The fuel pump 24 absorbs the fuel in the fuel tank and supplies the fuel to the burner 3 by opening and closing the fuel valve. The blower is speed-changed by a blower motor 29 'for speed change.
The combustion air corresponding to the supplied fuel amount is filtered by the filter unit 2.
The air is blown to the burner 3 via 2 'by this blower.
The front machine wall 5 is detachably attached to the outside of the hot air duct room cover 3.
0 is provided to form a hot air passage chamber 31, and the hot air generated from the burner 3 passes through each of the air blowing chambers 1 through the hot air passage chamber 31.
When the burner 3 is to be removed, the burner 3 slides forward on the holding frame 15 after removing the hot-air-path chamber cover 30, and the hot-air The road compartment cover 30 is detached, and the burner 3, the moisture sensor 2, and the dryer 1 are inserted, dried, and discharged. An operation device 32 for starting and stopping operations for each operation is detachably provided on the front machine wall 5.

A suction net 33 is provided at the outside air suction port on the front side of the holding frame 15, and between the upper part of the burner 3 and the lower part of the downflow shelf 14, and the front machine wall 5 and the hot air passage chamber cover. An L-shaped heat shield plate 34 is provided between the burner 3 and the burner 3. The outside air passage 35 is formed through the outside air passage 35.
The delivery metal 36 that supports the delivery valve 12 on the side is protected from hot air.

An air blower 37 is provided on the rear wall 5 at the center rear side of an exhaust path chamber 38 which is provided on the rear wall 5 so as to communicate with the central and left and right exhaust chambers 10, 10, 10. An exhaust motor 40 for rotating the exhaust 37 is provided on the rear wall 5. Reference numeral 41 denotes a valve motor for rotating the delivery valves 12, 12 via a speed reduction mechanism.

The diffusion plate 42 is provided at the center in the front-rear direction of the bottom plate of the transfer gutter 6 and below the supply port for supplying the transfer kernels to the storage chamber 8, so that the kernels are evenly diffused into the storage chamber 8. Is being reduced. The grain raising machine 43 is provided outside the front side of the front machine wall 5 and has a belt with a bucket conveyor 44 stretched inside. The upper end is provided with a discharge cylinder 45 between the transfer gutter 6 and the start end. And the lower end is connected to the grain collecting gutter 1
A supply gutter 46 is provided and communicated with the three terminal portions.

Numeral 47 denotes a grain raising motor, which rotationally drives the belt with the bucket conveyor 44, the transfer spiral in the transfer gutter 6, the transfer spiral in the diffusion plate 42 and the grain collecting gutter 13, and the like. . The moisture sensor 2 includes the grain raising machine 4
3 is provided substantially at the center in the vertical direction, and the moisture sensor 2
By transmitting the electric measurement signal from the operating device 32,
The moisture motor 48 is rotated to rotate and drive various parts of the moisture sensor 2 to receive the grains falling while being transported upward by the bucket conveyor 44.
The moisture of the ground grain is detected.

The operation device 32 has a box-shaped front plate, on which a start switch 49 and a stop switch 50 for starting each operation are provided, and a control device 52 having a CPU 51 is provided therein. Motor 29 ', 4
0, 41, 47, 48, the fuel valve, the fuel pump 24, and the like are started, stopped, and controlled.
Hereinafter, the operation of the above embodiment will be described.

By operating the start switch 49 for starting the drying operation of the operating device 32, each part of the grain dryer 1, the burner 3, the moisture sensor 2 and the like are started, and the burner 3 generates hot air. The hot air passes through the grain drying chambers 9 from the hot air path chambers 31 and the air blowing chambers 11, passes through the exhaust air chambers 10 and the exhaust air path chambers 38, and is sucked and exhausted by the exhaust fan 37. The grains accommodated in the grain storage chamber 8 are exposed to the hot air while flowing down from the storage chamber 8 through the respective drying chambers 9 and dried, and are fed downward by the respective feed valves 12. After flowing down the falling shelf 14, it is transferred and supplied from the grain collecting gutter 13 through the supply gutter 46 into the grain raising machine 43 by the lower transfer spiral, conveyed to the upper part by the bucket conveyor 44, and transferred through the discharge tube 45 to the transfer gutter 6. It is transferred from the transfer trough 6 onto the diffusion plate 42 by the upper transfer spiral, and is uniformly diffused and reduced into the storage chamber 8 by the diffusion plate 42 to be circulated and dried.

When the grain moisture detected by the moisture sensor 2 is the same as the grain target moisture, it is detected that the drying is completed, and the controller 52 automatically controls the drying machine 1 Is automatically stopped, and the drying of the grain is stopped.
During this drying operation, a defect occurs in the burner 3,
When performing inspection and repair, the hot air passage chamber cover 30 is removed, and the upper burner stay 22 and the lower burner stay 23 of the burner 3 are connected to the upper guide plate 18 and the lower guide plate 1 of the holding frame 15.
9 is slid forward, the hot air path chamber cover 30 is removed, removed from the cavity, and reassembled after inspection and repair.

[Brief description of the drawings]

 FIG. 1 shows an embodiment of the present invention.

FIG. 1 is an enlarged side perspective view of a part of a grain dryer.

FIG. 2 is an enlarged plan view of a part of the grain dryer.

FIG. 3 is a partially broken whole side view of the grain dryer.

FIG. 4 is an enlarged sectional view taken along the line AA of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line BB of FIG. 4;

FIG. 6 is a block diagram.

[Explanation of symbols]

 Reference Signs List 3 Burner 5 Machine wall 8 Grain storage room 9 Grain drying room 12 Feeding valve 13 Grain collecting gutter 14 Downflow shelf 15 Holding frame

Claims (1)

(57) [Claims] 1. A kernel is fed from a grain storage chamber 8 on an upper side to a grain drying chamber 9 on a lower side by a rotary drive of a delivery valve 12 and is caused to flow out from a burner 3 while flowing down from a falling shelf 14 to a grain collecting gutter 13. A drying machine which blows hot air into the drying chamber 9 for drying, and wherein the burner 3 is provided inside the side wall 5.
The fuel tank 27 is provided so as to be movable back and forth along the holding frame 15 and is connected to a fuel tank 27 provided outside the machine frame to supply fuel to the burner 3 .
The the order of the flexible hose 26 the fuel tank 27
The burner 3 can be detachably provided on the outside of the machine frame with respect to the side joint fitting 28, and the burner 3 can be moved forward along the holding frame 15 from a position below the falling shelf 14 to be taken out from the front side surface. A hot air device in a grain dryer having a configuration.