JPS6152391B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for cleaning dust that settles and accumulates on the bottom surface of an exhaust passage adjacent to a grain flow passage in a grain dryer.

(Prior art) A grain dryer in which air containing moisture and dust crosses a grain flow path from a hot air chamber and is discharged outside the machine through an air exhaust path adjacent to the grain flow path is disclosed in Japanese Patent Laid-Open No. 53-2266. This method has been generally known as shown in the above publication.

(Problems to be Solved by the Invention) Dust settles and accumulates on the bottom of the exhaust duct of this type of grain dryer, so this must be cleaned.
Workers sometimes neglect to clean the area.

An object of the present invention is to always clean the air exhaust passage every time the grains are taken out of the machine after drying, so that there is no risk of neglecting cleaning.

(Means for solving the problem) Grain flow passages 2 consisting of porous walls on both sides of the hot air chamber 1
An exhaust fan F provided on the back of the machine body adjacent to the exhaust air passage 3 is connected to the back side of each air exhaust passage 3, and the grains falling from the flow passage 2 are transferred from the grain lifting machine 7 to the grain feeding cylinder 6.
In the grain dryer, in which the grains are circulated from the grain storage chamber 4 to the grain flow path through the grain storage chamber 4, an open/close door 5 is hinged to the front of each exhaust path 3 by opening an outside air inlet in contact with the bottom surface thereof.

In addition, a discharge port leading to the grain removal pipe 8 for removing dried grains from the machine is bored in a part of the bottom of the grain feeding pipe 6 in the upper part of the grain storage chamber 4, and an opening/closing lid 9 is slidably attached to this. .

Of the two index filaments 10 and 12, one end of one filament 10 is connected to the opening/closing lid 9, and one end of the other filament 12 is connected to the opening/closing door 5.

(Function) The hot air from the burner B on the front of the machine passes between the grains flowing down in the flow path 2 from the left and right hot air chambers 1, removes the moisture content and dust interposed between the grains, and is discharged. It reaches route 3 and is discharged outside the aircraft by exhaust fan F on the back of the aircraft.

When the grains have finished drying, the other ends of the two indexing filaments 10 and 12 are indexed together, and the opening/closing lid 9 is opened by one filament 10, allowing the grains to be discharged from the grain frying machine 7. The air is discharged to the outside of the machine through the take-out tube 8, and the opening/closing door 5 is opened by the other filament 12. As shown in FIG. An air current directed toward the rear side is generated, and the dust that has settled and accumulated on the bottom surface of the exhaust passage 3 is discharged out of the machine all at once.

(Example) In the embodiment shown in the drawings, the grains that have fallen to the bottom of the machine through the rotary valve V at the bottom of the flow path 2 are sent from the grain lifting machine 7 on the back of the machine by a screw conveyor S installed horizontally on the bottom of the machine. The grain is supplied to the center of the grain storage chamber 4 through the grain feeding spiral 6a in the grain barrel 6. In this way, the grains are circulated and dried.

In addition, as shown in FIG. 1, the other ends of the filaments 10, 12 are connected to an operating rod 11 whose tip is pivoted to the fuselage and can be raised and lowered, and by lowering the operating rod 11, the filaments 10, 12 are moved. It would be good to index it. But striae 1
The other ends of 0 and 12 may be indexed not by the operating rod 11 but by another structure, or may be pulled by the operator.

(Effects of the Invention) In this way, in the present invention, when the other ends of the filaments 10 and 12 are pulled together after the drying operation is completed, the opening/closing lid 9 is opened and the grains are taken out of the machine. The outside air inlet in front of the bottom surface 3a of the exhaust passage 3 opens and blows away the accumulated dust.
Cleaning of the air exhaust passage 3 is always carried out periodically, resulting in the effect that dust does not accumulate on the bottom surface of the air exhaust passage.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway rear view of an embodiment of the present invention, FIG. 2 is a partially cutaway front view, and FIG. 3 is a partially cutaway side view of the main part. 1 is a hot air chamber, 2 is a grain flow path, 3 is an air exhaust path, 3
a is the bottom surface, 4 is a grain storage chamber, 5 is an opening/closing door, 6 is a grain feeding cylinder, 7 is a grain lifting machine, 8 is a grain removal cylinder, 9 is an opening/closing lid, and 10 and 12 are wires.

Claims (1)

[Claims] 1 A grain flow path consisting of a porous wall is provided on both sides of the hot air chamber, and an exhaust fan F installed on the back of the machine body is adjacent to this and an exhaust fan F installed on the back of the machine body is connected to the back of each ventilation path to remove grains that have fallen from the flow path. In a grain dryer in which grains are circulated from a grain lifting machine through a grain feeding cylinder and from a grain storage chamber to a grain flow path,
An outside air inlet is drilled in the front of each exhaust duct in contact with the bottom surface, and a door is hinged to open and close it, and a part of the bottom of the grain feeding cylinder at the top of the grain storage room is connected to the dried grain removal cylinder. Drill a discharge port and attach a slidable opening/closing lid to it.
Among the two index filaments, one end of one filament is connected to the opening/closing lid, and one end of the other filament is connected to the opening/closing door.