RU2210433C2 - Method of separation of grain mixture in hulling machine and hulling machine for realization of this method - Google Patents

Abstract

FIELD: separation of grain mixtures. SUBSTANCE: proposed method includes delivery of grain mixture to intake branch pipe and then to sorting chamber, cleaning of grain from dust and partial separation of shells and germs, separation of mixture into tailings and minus fractions. Minus fraction is removed by aspiration air flow. Before separation in sorting chamber, grain mixture is separated into fractions by aspiration air flow which is formed by taking air from grain mixture flow in intake branch pipe. Hulling machine is provided with intake branch pipe, housing with sorting chamber where drum is located with sieve under it; minus fraction branch pipe, tailings branch pipe and air intake port are located under sieve. Air intake port is combined with intake branch pipe and minus fraction branch pipe is connected with aspiration passage. EFFECT: enhanced efficiency of separation. 3 cl, 2 dwg

Description

 The invention relates to the field of processing industry and can be used in scouring machines for preparing grain for grinding.

 A known method of separating a grain mixture in a scouring machine, including feeding the grain mixture into a sorting chamber, separating it into a descent and passage fractions (Machines, equipment, instruments and automation for the processing branches of the agro-industrial complex. - T. IV. Part two. Mill-elevator, cereal and feed industry. Catalog. - M., 1990, p.142, Fig. 122). The disadvantage of this method is that the treated grain enters the suction channel, which in turn carries out air suction from the sorting chamber, taking with it a portion of light impurities.

 The closest in its technical essence is the method of separation of the grain mixture in the washing machine, which includes feeding the grain mixture into the sorting chamber, separating it into the outlet and passage fractions and outputting the passage fraction by aspiration air flow (Machines, equipment, instruments and automation means for the processing branches of the agro-industrial complex T. IV. Part Two. Mill-elevator, groats and animal feed industry. Catalog. - M., 1990, p.140-141, fig. 121).

 The disadvantage of this method is that the separation of dust particles and other light impurities from the grain begins only in the sorting chamber, which is not enough with a short residence time of the grain. This disadvantage is caused by the fact that air is drawn in by the aspiration air stream directly from the atmosphere.

 Known scouring machine, including a housing with a sorting chamber, in which there is a whip drum, sieve, nozzles for collecting the waste and passage fractions, a receiving nozzle (Machines, equipment, instruments and automation for the processing industries of the agricultural sector. T. IV. Part two. Mill -elevator, cereal and animal feed industry. - Catalog. - M., 1990, p.142, fig. 122). The disadvantage of this device is that in it through the nozzle of the similar product is carried out the suction of light impurities along with the air flow.

 The closest in its technical essence is a scouring machine, which includes a housing with a sorting chamber, in which there is a whip drum, a sieve, nozzles for collecting the waste and passage fractions, the last of which is connected to the suction channel, a suction pipe and an air intake window (Machines, equipment, automation devices and means for the processing branches of the agro-industrial complex, T. IV, part two, mill-elevator, groats and animal feed industry. Catalog. -M., 1990, p.140-141, fig. 121).

 The disadvantage of this device is that the air intake in it is through the intake windows located on the end of the housing, this leads to the absence of air flow in the inlet pipe, due to which the process of separation of the mixture and separation of light fractions begins only in the sorting chamber, which It turns out to be insufficient for high-quality separation of the mixture.

 The objective of the present invention is to improve the quality of separation of the mixture.

 The present problem is solved by the fact that in the method of processing the grain mixture in a scouring machine, comprising feeding the grain mixture into a sorting chamber, separating it into an outlet and passage fractions, outputting the passage fractions with an aspiration air stream, air is taken into the aspiration air stream from the incoming grain mixture stream .

 The problem is also solved by the fact that in a scouring machine, which includes a housing with a sorting chamber, in which a whip drum, a sieve, nozzles for collecting the waste and passage fractions are located, the last of which is connected to the suction channel, a suction pipe, an air intake window, an air intake window are combined with receiving branch pipe.

 The novelty of the proposed technical solution lies in the fact that the intake of air by an aspiration air stream, removing the passage fractions, is carried out from the flow of grain material entering the sorting chamber. For this, the air intake window is combined with a receiving pipe.

 Figure 1 shows a diagram of a scouring machine.

 Figure 2 is a section along aa.

 The device consists of a housing 1, which contains a sorting chamber 2, in which a whip drum 3 is located, and a sieve 4 is located under it. A branch pipe of fractions 5 is installed under the sieve, and a branch pipe of 6 fractions on the side of the whip drum 3, at the end of which there is a lock gate 7 On the housing 1 in place of the sorting chamber 2, a receiving pipe 8 is installed, and a pipe of passage fractions 5 is connected to the suction channel 9.

 The method of separation of the mixture in the washing machine is as follows. The grain mixture enters the intake pipe 8, where it begins to separate into fractions by the suction stream that arises in it due to the fact that the air is taken from the flow of the incoming mixture. Once in the sorting chamber 2, the grain material, already partially divided into fractions, falls under the influence of the scouring drum 3, interacting with the sieve 4. Drum 3 is a complete cleaning of grain from dust and partial separation of the fruit shells and the germ. The cleaned grain material leaves the sieve 4 and enters the branch pipe of the outflow fractions 6, from where it is discharged by the lock gate 7, and light impurities passing through the sieve 4 are taken from the branch pipe passage 5 by suction and removed from the machine.

Claims (2)

 1. A method of separating a grain mixture in a washing machine, including feeding the grain mixture into a receiving pipe, and then into a sorting chamber, completely cleaning the grain from dust and partially separating the fruit shells and seeds, separating the mixture into an exit and passage fractions and outputting the exit and passage fractions moreover, the passage fraction is removed by an aspiration air stream, characterized in that before separation in the sorting chamber, the grain mixture is partially stratified into fractions by an aspiration air stream, which form by taking air from the flow of grain mixture in the receiving pipe.  2. A scouring machine comprising a receiving pipe, a housing with a sorting chamber in which the scouring drum is located, and below it a sieve, under which a pipe for the passage fraction, a pipe for the passing fraction and an air intake window, wherein the air intake window is combined with the receiving pipe, and the pipe for collecting the passage fraction is connected to the suction channel.

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