JPS5835338Y2 - Grain rough sorting equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rough sorting device for grains for removing a mixture of straw, dust, etc. contained in the grains.

The purpose of this invention is to stretch a large number of endless wires parallel to each other with a slight gap between them via a plurality of rollers, and to make grains movable on these endless wires, so that grains with a relatively large mass can be easily separated. In addition to allowing the mixture to fall and be discharged from the above-mentioned gap, air is blown onto the grains using an injection nozzle located below the endless wire, which blows the mixture with a relatively small mass upward, and the mixture is passed through the suction duct. It is an object of the present invention to provide a rough sorting device for grains that can efficiently and reliably remove mixtures in grains without causing clogging by suctioning and discharging the grains to the outside.

This invention will be explained below based on the drawings.

1 to 3 are diagrams showing one embodiment of this invention.

In the figure, 1 is an endless wire, and there are many endless wires 1, and these many endless wires 1 are connected to four rollers 2a, 2b, and 2C.

2d in parallel to each other.

Also, the upper side 3 of the endless wire 1 (rollers 2a, 2b
The portion located between the rollers 2a and 2b is inclined slightly downward from the left side to the right side as shown in FIG. 1, but is not limited to this and may be in a horizontal state.

Further, at least one of the rollers 2a22b and 2C22d is a driving roller, and a large number of endless wires 1 can be moved continuously or intermittently via this driving roller.

The movement of the endless wire 1 is to prevent clogging between the endless wires 1, and is assumed to be movement in one direction as shown by arrow A, but is not limited to this. It may be moved in the direction, or it may simply be moved back and forth.

Further, a slight gap l is formed between the plurality of endless wires 1.

This gap l is adjusted to be slightly narrower than the diameter of the grains 4 so that the grains 4 do not pass through.

Then, the grains 4 are supplied from the supply hopper 5 onto the endless wire 1, specifically onto the upper side 3, and
The mixture 6a contained in the grains 4 and having a relatively large mass is allowed to fall and can be freely discharged from a discharge duct 7 provided below.

Furthermore, grains 4 are placed below the upper side 3 of the endless wire 1.
In order to blow air from below, an injection nozzle 8 that blows upward a mixture 6b with a relatively small mass contained in the grains 4 is arranged facing the upper side 3, and an endless nozzle is placed above it. A suction duct 9 is provided sandwiching the upper side 3 of the wire 1, and the mixture 6b can be sucked and discharged to the outside via the suction duct 9.

Furthermore, the grains 4 after the rough selection process are as shown in FIG.
It can be freely collected in the take-out hopper 10.

Incidentally, as the endless wire 1, a linear body having small elasticity such as iron wire, piano wire, or wire can be used, and the whole thereof is made into an endless shape.

In addition, in the illustrated example, there are four (7) D-ra 2a, 2b, 2C.
, 2d is used, but is not limited to this.
Any number of rollers may be used as long as there are multiple rollers.

Next, the effect will be explained.

First, four rollers 2 a and 2 b including the drive roller
, 2 C, and 2 d, a large number of endless wires 1 are rotated in the direction of arrow A, and a power source connected to the injection nozzle 8 and the suction duct 9 is operated.

In this state, grains 4 are supplied from the supply hopper 5 to the upper side 3 of the endless wire 1.

Then, as the endless wires 1 move and tilt in the direction of arrow A, the grains 4 roll between the endless wires 1 and move toward the take-out hopper 10.

During this movement, the mixture 6a, which has a relatively large mass, falls through the gap l between the endless wires 1 and is discharged from the discharge duct 7, and the mixture 6a, which has a relatively small mass, falls through the gap 1 between the endless wires 1 and is discharged from the discharge duct 7, and the mixture 6a, which has a relatively small mass, is injected with air from the injection nozzle 8. It is blown upward by the suction duct 9, and is sucked into the suction duct 9 and discharged to the outside.

Therefore, the mixtures 6a and 6b are reliably removed, and only the grains 4 that are free of unnecessary substances are taken out from the take-out hopper 10.

Furthermore, the endless wire 1 has rollers 2a, 2b, 2C,
Each endless wire 1 for rotational movement through 2d
There is no clogging and it is extremely efficient.

As explained above, according to this invention, the structure is such that grains can be freely fed onto a large number of endless wires movably stretched in parallel with a slight gap through a plurality of rollers, Air is sprayed onto the grains on this endless wire by placing an injection nozzle below the endless wire that blows the mixture in the grains upwards, and at a position above the endless wire using the above injection nozzle. By providing a suction duct to discharge the mixture to the outside, the mixture contained in the grains, which has a relatively large mass, can be discharged by falling through the gap between the endless wires, and the mixture, which has a relatively small mass, can be discharged from the injection nozzle. The air can be discharged through the injection air and suction ducts, and as a result, the mixture in the grains can be reliably removed, and since the endless wires are movable via rollers, there is no possibility of clogging between each endless wire. This has the effect that it is possible to prevent the occurrence of problems, and to enable efficient rough selection processing.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view showing an embodiment of this invention, Fig. 2 is a partially enlarged perspective view showing the state of the endless wire and roller, and Fig. 3 is a portion taken along line III-III in Fig. 2. It is an enlarged sectional view. In the figure 1...Endless wire, 2a, 2b, 2
C2d...Roller, 4...Grain, 6a
, 6b... mixture, 8... injection nozzle, 9... suction duct.

Claims (1)

[Scope of utility model registration request] Grain can be freely fed onto a large number of endless wires that are movably stretched parallel to each other with a slight gap between them via a plurality of rollers, and air is blown onto the grains on these endless wires to remove the mixture in the grains. Grain, characterized in that an injection nozzle for blowing upward is arranged below the endless wire, and a suction duct is provided above the endless wire for discharging the mixture blown up through the injection nozzle to the outside. coarse selection device.