SU1303193A1 - Electric grain cleaning machine - Google Patents

Abstract

The invention relates to the field of agricultural engineering and improves the quality of seed cleaning (s). Above the conveyor (K) 1 there is an electrode (E) 2 with a dielectric. It is placed in the alignment of the suction device 4 and is divided by a dielectric partition 3 into two sections. They have holes of different diameters. The first holes along the direction of movement K 1 have a diameter larger than the holes of the subsequent section. A section with holes of larger diameter is connected to a high voltage source 8 through a voltage divider. A section with holes of smaller diameter is connected directly to the source 8. A final discharge branch E is located above the final branch K 1. At the end of K 1 there are receivers 11 for separation. In the first section, light impurities are suctioned, and in the second, fine impurities. Light and small impurities are deposited in cyclone 6. The action of electrical forces E 7, gravitational and centrifugal forces causes the angle of separation C from the tape K 1. The different fractions of C fall into different parts of the receiver 11. When C leaves the zone of action E 2, they are oriented with the long axis along the direction of movement of the K 1 ribbon, which reduces the scatter angle of separation C. As a result, C is divided into fractions more clearly. 2 Il. i (L with about 00 SO rO

Description

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The invention is related to agricultural machinery, in particular, to devices, intended for cleaning the seeds of grain from the heads of left impurities.

The purpose of the invention is to improve the quality of seed cleaning.

Figure 1 shows the proposed electrosemaking machine; Fig.2 - electrode with dielectric, cross section.

The electroseeding machine consists of a grounded tape on two cylindrical drums of a grounded conveyor belt 1, an electrode 2 with a dielectric, located above the conveyor belt. The dielectric electrode is divided by the dielectric partition 3 (Fig. 2) into two sections with openings of different diameters, and is installed in the alignment of the suction nozzle 4. At the same time, the openings of the first part of the conveyor section have a diameter larger than the openings of the next section. The suction nozzle is connected by a duct 5 to a cyclone 6, from which air is sucked by a fan. A corona electrode 7 is located above the final branch of the conveyor. The corona electrode and the section with small-diameter holes are connected to the negative pole of the high voltage source 8 directly, and the section with large-diameter holes through a voltage divider (not shown). The material to be separated is loaded into the hopper 9 and evenly distributed across the conveyor belt by the feed roller 10. At the end of the conveyor, receivers for separation products 11 are installed (classifier).

Electrosurgical machine operates as follows.

Separable material consisting, for example; from a mixture of wheat seeds (seeds of the main crop), smut sacks (light admixture), puny seeds (medium impurity) stuck to the surface of wheat seeds spore solid smut, dust, smut lumps (small admixture), is loaded into the bunker 9 and from it evenly in one layer is distributed by the feed roller 10 on the upper branch of the conveyor 1. The passage under the first section of the electrode 2 with the dielectric, the mixture enters the electric field with voltage

Orientation (5-6) -10 -

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the smut sacs and the smut sacs are oriented. The holes in the first part of the electrode are matched to the size of the Golovnevy bags and the air flow is ensured by the suction of the oriented smut bags. Through the holes in the first part of the electrode 2 with the dielectric, they are carried away by air flow and are deposited in the cyclone 6. Thus, the suction of the oriented smut sacks leads to the enrichment of the mixture with wheat seeds. Upon further movement on the conveyor belt 1, the mixture falls under the second part of the electrode 2 with a dielectric. The strength of the electric field here is equal to the intensity of the orientation

to R

(7-8) 10 77 seeds of wheat and seeds

wheat orientates; Spur of solid smut; dust of the same name with oriented wheat seeds and detached from the surface of the seeds. The holes of the second part of the electrode 2 with a dielectric are selected for fine impurities. Air flow provides only dust suction, a fire smut. Sputtering of solid smut, separated from the surface, dust is sucked through the holes of the second part of electrode 2 with a dielectric by air flow and is deposited in cyclone 6. Thus, under the second part of electrode 2 with a dielectric, the surface of wheat seeds is cleared from spores of solid smut, dust load), i.e. The quality of seeds is improved. Oriented wheat seeds, the exit from the electric field of the second part of the electrode 2 with the dielectric, under the action of the electric field forces (Fig 2) are deflected by their upper end towards the electrode 2 with the dielectric, and the lower end of the oriented seeds stay on

the conveyor belt 1 deviates in the direction of movement of the conveyor belt 1. Thus, an ordered arrangement of wheat seeds with a long axis occurs along the direction of movement

The conveyor belt. In this position, the mixture consisting of seeds of wheat, seed seeds goes to the cylindrical part of the conveyor belt 1, where there is an electric field of corona

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discharge occurring between the corona electrode 7 and the grounded conveyor belt 1. Under the influence of electric, gravitational and centrifugal forces, the angle of separation of the mixture particles from the conveyor belt 1 and their penetration into different parts of the classifier 11 is determined. In wheat, the long axis along the conveyor belt 1 eliminates the rolling of seeds on the cylindrical part of the conveyor 1, thereby reducing the spread of the seed wheat. Wheat seeds fall into the first part of the classifier 11, the seedy seeds fall into the second part of the classifier 11. A decrease in the scatter of the angle of separation of seeds from the cylindrical part of conveyor 1 leads to a clearer separation into fractions of the mixture being separated by the classifier 11, i.e. the penetration of wheat seed into the second part of the classifier 11 is reduced. Thus, the separation efficiency on the cylindrical part of the conveyor 1 increases.

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Claims (1)

Invention Formula An electrosurgical machine that contains a conveyor, an electrode with a dielectric above it, a suction device, corona electrodes, a high voltage source and receivers of separation products, which, in order to improve the quality of cleaning the seeds, the dielectric electrode is located in the suction device and divided by dielectric 4 into two sections having openings of different diameters, the openings of the first section moving along the conveyor of the section have a diameter larger than The wiring of the subsequent section, while a section with holes of a larger diameter is connected to a high voltage source through a voltage divider, and a section with holes of a smaller diameter is connected to a high voltage source directly. -1- fi92 Editor N. Gorvat Compiled by V. Morozov Tehred I.Popovich Proofreader T. Kolb 1242/8 Circulation 512 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4