JPS5835347Y2 - Sediment removal device in the air conditioning room of a grain sorting machine - Google Patents

Description

[Detailed description of the idea] A sorting plate with a corrugated cross-section and numerous air holes is installed in the upper opening of the machine casing, sloping downwards, and an air conditioning chamber is provided below the sorting plate. A blower with an intermittent air supply device is installed inside the machine casing and installed at the bottom of the machine casing, and the blower intermittently supplies air to the sorting plate through the air conditioning chamber to prevent a small amount of paddy from flowing down on the sorting plate. In a grain sorting machine that sorts brown rice, small grains mixed in the grains fall through the air holes of the sorting plate into the air conditioning chamber and accumulate, and if the accumulation increases, the sorting function may deteriorate.

The present invention provides a device for removing this deposit from the air conditioning chamber.

A grain sorting machine equipped with the device of the present invention will be explained below with reference to the drawings.

Reference numeral 1 designates the machine case of the grain sorting machine, and the upper opening of the machine case 1 is made of a rectangular thin metal plate with a corrugated cross section. A sorting plate 3 formed with air holes 3 is sloped diagonally downward so that it slopes downward in the vertical direction and also downward in the horizontal direction, and the air holes 2 are oriented toward high places in the horizontal direction. The rear end of the sorting plate 2, which is inclined downward in the vertical direction, projects from the rear wall opening of the machine housing 1.

4 is a rectangular air conditioning chamber formed in the machine casing 1 directly below the sorting plate 2, with the top open. A cleaning port 5 is formed by opening, and an opening/closing plate 6 of the cleaning port 5 is attached to guide grooves provided on both sides of the cleaning port 5 so as to be freely insertable and removable from the outside.

Inside the air conditioning chamber 4, there is an air conditioning plate 7 with numerous air holes.
are arranged diagonally backward and downward at both front and rear ends of the air conditioning chamber 4, and several air conditioning plates 7 are arranged and fixed diagonally rearward and upward in the intermediate portion.

Reference numeral 8 denotes a blower installed at the bottom of the machine housing 1, and its discharge port 9 is formed upwardly in the front direction and is connected to the opening at the front of the bottom plate of the air conditioning chamber 4. Inside the discharge port 9 is an air intermittent supply device 10. This is provided.

Reference numeral 11 denotes a cover that covers the sorting plate 2 and is connected to the upper opening of the machine housing 1, and the soil wall of the cover 11 has a position opposite to the corner of the vertically high place and the horizontally high place of the sorting plate 2. An opening is formed in the opening, and a feed funnel 12 for grains to be sorted is installed in the opening. Reference numeral 13 denotes a sorted grain outlet connected to the vertically downwardly inclined rear end of the sorting plate 2. , and 14 indicates a dust collection and ventilation path provided at a position facing the higher side of the sorting plate 2 in the lateral direction of the cover 11.

Next, its effect will be explained.

When the blower 8 is driven and rotated, air is intermittently sent into the air adjustment chamber 4 from the discharge port 9, the air volume is adjusted by the air adjustment plate 7, and air is intermittently blown out from the air holes 3 of the sorting plate 2. .

Thereupon, when the ground rice with some paddy mixed in, which has been descaled by a scaler and separated by wind sorting, is supplied from the supply funnel 12 onto the sorting plate 2 and allowed to flow down on the sorting plate 2. A sorting action is performed by the wavy uneven surface, the downward slope, and the airflow intermittently ejected from the air holes 3, and the rice is classified into finished rice, mixed rice with some paddy mixed into the finished rice, and paddy. The exhaust air from the village is discharged from the dust collecting and exhaust passage 14 together with fine dust.

When the air stream is continuously ejected from the air holes 3 of the sorting plate 2, grains smaller than the diameter of the air holes 3 often fall through the air holes 3 into the air conditioning chamber 4. After a long period of time, the grains that have fallen into the air conditioning chamber 4 are deposited on the bottom plate of the chamber, and the deposits are removed by the air conditioning chamber 4 under the action of intermittent air that enters from the opening in the front of the bottom plate. The air is concentrated at the rear end far away from the air inlet of the chamber 4, while minute foreign matter is sucked together with the air from the air inlet of the blower 8, and flows through the opening in the front of the bottom plate of the air conditioning chamber 4 along with intermittent airflow. The air enters the inside and concentrates at the rear end of the air conditioning chamber 4.

In the present invention, the bottom of the rear end protruding from the rear wall of the machine casing of the air conditioning chamber 4 is opened to form a cleaning port 5, and the opening/closing plate 6 is attached to the cleaning port 5 so that it can be inserted and removed. Sometimes the opening/closing plate 6
is inserted into the cleaning port 5 to close the cleaning port 5 to prevent air leakage, and after the sorting work is completed, the opening/closing plate 6 is pulled out from the cleaning port 5 to open the cleaning port 5 and the rear end of the air conditioning chamber 4 is closed. The sediments concentrated in the air conditioning chamber 4 are quickly removed from the air conditioning chamber 4 through the cleaning port 5 by the airflow flowing from the front to the rear inside the air conditioning chamber 4, thereby preventing the deterioration of the sorting function due to the sediments. There is an effect that can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a sectional side view of a grain sorting machine according to the present invention, FIG. 2 is a sectional view taken along the line A--A in FIG. 1...Machine housing, 2...Sorting board, 3...
...Air vent, 4...Air conditioning room, 5...
...Cleaning port, 6...Cleaning port opening/closing plate, 7...
...Air conditioning board, 8...Blower, 9...
...Discharge port, 10... Air intermittent supply device, 11
... Cover, 12 ... Supply funnel, 13
... Sorting grain removal port, 14 ... Dust collection and ventilation duct.

Claims (1)

[Scope of utility model registration request] A rectangular metal plate is formed with a corrugated cross section, and each chevron-shaped protrusion has a number of air holes on one side facing in the same direction. The air holes are installed so that they slope downward and also slope downward in the horizontal direction, and the air holes are installed with the air holes facing toward the higher side in the horizontal direction. An adjustment chamber is formed inside the machine housing, and a blower is installed at the bottom of the machine housing with the outlet facing forward and upward, and the outlet is connected to the front opening of the bottom plate of the air conditioning chamber. In a grain sorting machine equipped with an intermittent air supply device in the discharge port, the rear end of the air conditioning chamber 4 protrudes from the rear wall opening of the machine casing 1, and the bottom of the protrusion is opened to form a cleaning opening. The opening/closing plate 6 of the cleaning port 5 is attached to the opening so that it can be inserted and removed from the outside, and the air conditioning plate 7 with numerous air holes is arranged and fixed at appropriate intervals inside the air conditioning chamber 4. Features: Sediment removal device in the air conditioning chamber of a grain sorting machine.