SU120067A1 - Apparatus for wet cleaning of grain from impurities according to their specific weight - Google Patents

Description

The known grain cleaning machines using a vertical stirred vessel do not completely remove the light impurities found in the grain mass.

The described apparatus eliminates this disadvantage. For the purpose of better removal of light impurities, rotary blades of rake type are mounted on the shaft of the agitator; slippers have rake-type blades mounted on rollers on the copier, and to remove these impurities captured by rakes, a groove fitted with combs is installed; impurities in the chute during the passage of a rake on the rise of the copier above the specified area.

FIG. 1 shows a sectional longitudinal view of the apparatus; in fig. 2 - the same plan view; in fig. 3 - unit gutter apparatus with a comb; in fig. 4 - a general view of the device with auxiliary equipment.

The apparatus consists of a horizontal frame / housing, in which, on a rotating shaft with a small number of revolutions, mixing blades 3 are strengthened. The grain enters the apparatus through a pipe 4 connected to the lower part of the body. Water in a certain proportion to the grain enters through the nozzle 5 into the lower cylindrical part of the sink 6.

The mixture of water with the grain is maintained at a level by means of a diaphragm 7 (Fig. 1), which, with a lowering level, turns on a servo motor, tilting the flow of grain to the scales, and the latter with a weighed portion of grain give impulse to the water dispenser.

Due to mixing in the water entering the grain washing all impurities with a specific weight above the grain will settle down. . The fixed, radially located, feathers 8 have a slope towards number 120067

The rotation of the agitators and therefore, slowing down the movement of water, easily direct heavy precipitations to the lower part of the sink 6.

The flow of water coming through the nozzle 5 towards the sediments contributes to the separation of grain and the fall of heavy impurities to the bottom of the sink onto the gate 9. As heavy impurities accumulate, the gate 9 opens and the precipitates are finally washed with water through the tangentially welded nozzle 10. Then close the gate 9, tilting the valve // and remove heavy impurities from the washer. The flow of water in the main body / sink facilitates the floating of light impurities of grain on the surface of the water in the washing machine.

Impurities that are lighter than water are removed by the following device: a shaft 12 has a gearbox 12 that reduces the shaft speed on the gear 13, on the elongated sleeve of which the sliding sleeve of a rake double-pointed blade 14 with welded fingers 15 is fitted. The coupling of the blades 14 is made sliding along key 16 along the sleeve gear 13 and is held in the vertical direction by the rollers 17, rolling along the profile copy 18, welded to the cylindrical wall of the housing 1.

Above the water level in the sink is placed a chute 19, having the shape of a sector (Fig. 2). The chute 19 from the narrow end has a wall, and the wide end extends beyond the wall of the housing. From the side, the counter-rotation, elos 20 are welded to the chute 19, leaving free ends into the water. Inside the groove 19 on the other hand, against the strips 20, the teeth 21 of the comb are welded.

Above the wide end of the gutter 19 and on the opposite side of the body / profile strip rises and the blades 14 are raised so that the fingers 15 pass over the gutter 19, and in a different position the fingers 15 go down into the water.

Before approaching the gutter 19, the fingers 15 fall between the strips 20 and the emerging debris leads along the strips into the gutter. The rubbish adhering to the fingers 15 is removed above the chute by the teeth 21, and all the garbage is washed off from the chute with water returned from the sieve from filtering the grain entering the cooking. Grain with water is taken from the sink through fitting 22 (Fig. 1).

The operation of the apparatus with the apparatus described is as follows.

Grain from the warehouse enters the receiving bin 23 (FIG. 4). From the bunker 23, the grain by the elevator 24 is fed along the leak 25 to the scale 26. The excess grain is discharged along the age leak 27 as a result of the action of the bolt 28, which switches depending on the action of the lock pin of the washing machine 29 when the set level of water and grain mixes in it. Automatic scales 26 take into account the amount of grain entering the production. Under the weights there is a receiving hopper 30, which has no more than one plumb of the grain bucket, equipped with a lid with a lever in the lower part, which opens under the influence of the weight of a portion of grain coming from the weighing bucket. Next, the grain is supplied by the tube 31 to the washer 5, equipped with a stirrer, below the level therein, which at the same time with the mixing ensures a uniform distribution of the grain in the water column. In the washing machine, impurities are harder and lighter than water and separate from the grain, and it partially swells. Each time the lid of the 30t hopper is opened, the drain valve 33 of the water metering unit 33 rises together with the grain from the lever 32 attached to it, the specified amount of water enters the washer 29. As a result of this synchronization of the entry of grain and gude into the washer, the latter maintains a predetermined ratio of these ingredients. Impurities lighter than water are removed from the surface of the water by scooping, and those that are heavier than water are caught in the trap 34 installed in the bottom of the washer. The trap 34 is supplied with the entire amount of water measured by the dispenser 33, pulsating, and the (portioned) supply of which contributes to the leaching of the trapped grain.

From the washing apparatus, the mixture of the zerk with water is captured by the pump 55 through a pipe, attached above the bottom of the washing apparatus to catch impurities of water, finally washed in the discharge pipe of this pump, where a turbulent regime is created by selecting it, and fed to a sieve 36 separation of wash water. The switch 37 directs the flow of the mixture of water and grain transported by the pump 35 either to the drain 36 or through the funnel and return pipe 38 back to the washer 29.

Wash water after the sieve 36 through pipe 39 is directed to the trough of the washer 29 to remove (flush) impurities, which is lighter than water.

Grain freed from flushing water is fed into a trough metering device 40 and in definite portions falls into predrazvarnik 41. Grain dosing unit 42 is connected with a water dosing unit 43. With each tilting of the dosing unit 40 t ha 42 acts on the water metering valve 43 and together With the grain, a predetermined amount of water enters the predvar 41, so that the ratio of water to grain in the cooking plant is maintained at a predetermined level.

Subject invention

Claims (2)

1. An apparatus for the wet cleaning of grain from impurities according to their specific gravity, made in the form of a vertical vessel with a stirrer, circulating in it from the bottom up, towards the product being washed, a liquid medium, characterized in that, in order to better remove light impurities, on the shaft agitators on a sliding clutch mounted rotary blades rake type, rolling on rollers on the copier, and to remove these impurities, captured by a rake, installed a groove, equipped with combs, wiping impurities into the groove during the passage of the rake along the rise leaning over said area. 2. An apparatus according to claim 1, characterized in that to automate the preservation of the hydromodule of the kneading, the receiving bin for the weighed grain is connected tightly to the water metering unit to ensure that it is supplied to the apparatus in proportion to the weight of the shipped grain. No. 120067 m f2