SU1360801A1 - Electric separator of grain mixture - Google Patents

Abstract

The invention relates to s .-. X. cars. The purpose of the invention is to increase the productivity and quality of separation of the grain mixture into fractions by intensifying the charging of particles in the corona discharge field in a suspended state in a directional air flow. In the lower part of the loading device 1 there is a charge chamber (K) 3 arranged in the form of a horizontal channel of rectangular cross section. The length K 3 is divided by a grounded louver grille 15. The side walls and the bottom 13 K 3 are made of a dielectric material, the top wall 14 K 3 and the grid 15 are made of metal. The input K 3 is connected to the air blower 4, the output to the separation K 6. The latter is made in the form of a rotating grounded drum (B) 17 and an electrode 18 parallel to its surface connected to the high-voltage output of the high-voltage source 8. Under K 6 set 7 collection fractions. With the 18 K 6 electrode and the top wall 14 K 3, the intake manifold 20 of the fan 5 for removing dust enclosed in a housing 19 is connected. Particles of the grain mixture, the passage area of the corona charge field K 3, become charged and airflow is removed to B 17 Light particles — dust through pipe 20 are carried outside the separator. Full grains are precipitated on B 17, are separated and discharged into a pick 7. 2 sludge. ((L 20 oo 0 o 00 o V5 Vu2.i -leo amp J e l 9l amp 1 l i, o o ol o oP 00 I / 11/21

Description

This invention relates to agricultural machines for cleaning and dividing seeds into fractions in an electric field.

The purpose of the invention is to increase the productivity and quality of separation of a grain mixture into fractions by intensifying the charging of particles in a corona discharge field in a suspended state in a directional airflow.

FIG. 1 shows the electrical separator diagram of the grain mixture; in fig. 2 is a section A-A in FIG. one.

The electric grain mixture separator contains a loading device 1 with grain mixture 2, a charging chamber 3 located in its lower part, an air blower 4 made in the form of a diametrical fan, a dust removal fan 5, a separation chamber 6 connected to the charge chamber camera 3, a collection of 7 fractions and a source of 8 high voltage.

The loading device 1 is made in the form of a bunker, tapering in the lower part with the formation of a shell over which the feeder 9 is installed. The magnitude of w, spruce is made with the possibility of changing its cross section by mixing the valve 10.

The charge chamber 3 is made in the form of a horizontal channel 11 of a rectangular cross section and consists of side walls 12, a bottom 13, an upper wall 14 and a horizontal louvre 15 that separates the channel of the charging chamber 3 along the length. The channel of the charging chamber 3 is connected with its own inlet to the air blower 4, and the outlet to the separation chamber 6.

The side walls 12 and the bottom 13 of the charging chamber 3 are made of a dielectric material, and the louvered grill 15 and the upper wall 14 of the charging chamber 3 are made of metal, the louvered grille 15 is grounded, and the upper wall 14 of the charging chamber 3 is equipped with needles 16 and connected to the high-voltage positive terminal of the high voltage source 8.

The channel 11 of the charging chamber 3 is made tapering towards the separation chamber 6 and is divided into two channels by a louvered grill 15, one of which is a chamber for creating a corona discharge field and the other is a duct. The louvre grille 15 is fastened in the dielectric walls 12 with the help of axes with the possibility of rotation and fixation.

The separation chamber 6 is made in the form of a vrashayuschaya grounded drum 17 and parallel to the surface of the electrode 18, connected to the high-voltage positive terminal of the high voltage source 8.

The fan 5 for dust removal is provided with a casing 19 and a suction pipe 20, the latter with one end connected to the casing 19 of the fan 5, and the other with the electrode 18 of the separation chamber 6 and the upper wall 14 of the charging chamber 3.

Collection 7 of fractions is made in the form of a rectangular shaped container with partitions 21, which form cells for collecting fractions of a grain mixture.

The electrical separator grain mix works as follows.

The grain mixture 2 from the loading device 1 is transported by the feeder 9 into the charging chamber 3. By means of the valve 10

5, the feed rate of the grain mixture is adjusted, i.e. electric separator performance. Air is blown into the charging chamber 3 through the air grate 15 by the blower 4. The particles of the grain mixture form a fluidized bed and move to the separation chamber 6 at a constant speed. The passage of the field of corona discharge created between the needles 16 of the electrode 18 and the louvered grill 15, the particles of the grain mixture become charged

5 and airflow is carried to the drum 17 of the separation chamber 6. Light mixtures of particles of grain mixture and dust are carried outside the separator through the intake pipe 20 by the fan 5 for dust removal. Full grains are precipitated on

0 rotating drum 17 and is exposed to an electric field created by electrodome 18 and drum 17. Depending on the mass and dielectric properties of the particles under the action of centrifugal force and electric field force, they are separated from the surface of the drum at different points, collected in a collector 7 and partitions 21 are divided into fractions.

All the way from the exit of the loading device 1 to the collection

7 fractions of the grain mixture is subjected to an electric field, which makes it possible to impart a maximum charge to the particles and to improve the quality of separation of the mixture into fractions.

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Claims (1)

Invention Formula An electrical grain separator comprising a charging device, a charging chamber located in its lower part and a separation chamber connected to it, an air blower, a dust removal fan with a casing and a suction port, a collection of fractions and a high voltage source, characterized in that in order to increase the productivity and quality of the separation of the grain mixture into fractions by intensifying the charging of particles in the corona discharge field in a suspended state in a directed air flow, the chamber is made in the form of a horizontal channel of rectangular cross section, divided along the length by a horizontal louvre grille, connected by its entrance with an air blower, and the outlet is with a separation chamber, while the side walls and the bottom of the charge chamber are made of dielectric material, and the grille and the upper wall of the charging chamber are made of metal, the louver grille is grounded, and the upper wall is charged The chamber is connected to a high-voltage output of a high voltage source, while the separation chamber is made in the form of a rotating drum and is parallel to its electrode surface connected to the high voltage output of a high voltage source, and the intake pipe of the dust removal fan is connected to the casing the other, with the electrode of the separating chamber and the upper wall of the charging chamber. 15 / 2 (Reg. 2