RU211726U1 - Grain cleaning magnetic separator - Google Patents

Abstract

The utility model relates to devices for cleaning grain and other bulk materials from heavy, light and magnetic impurities and can be used in agriculture, in the flour and cereals and feed industry, and other industries. The task is to create a small-sized magnetic separator, easy to manufacture, and to increase the efficiency of separating grains of magnetic impurities. The problem is solved by the fact that the separator, consisting of a housing with a loading and unloading branch pipe, contains an auger with a magnetic pen inside the inlet pipe. Extraction of magnetic impurities is carried out after the operation of the separator by removing the screw. By reducing the layer of grain moving along the screw with a magnetic pen, and increasing the length of the magnet, the separation efficiency of magnetic impurities increases.

Description

The utility model relates to devices for cleaning grain and other bulk materials from heavy, light and metal-magnetic impurities and can be used in agriculture, in the flour and cereals and feed industry, and other industries.

Currently known devices for cleaning grain.

Known "Magnetic separator" patent for utility model No. 57640, publ. October 27, 2006, containing a body made in the form of a thin-walled hollow container with inlet and outlet pipes provided with flanges at the ends, while the body has at least one window oriented along the longitudinal axis of the body and equipped with a door in which magnets are installed . The housing is additionally equipped on the side opposite the door with a viewing window with a hinged lid, as well as an adjustable damper installed in the inlet pipe, the door is equipped with a hinged non-magnetic screen separating the magnets from the bulk material being cleaned.

The disadvantage of this device is that, ensuring the uniform distribution of bulk material is regulated by a valve fixed by a screw, this does not allow you to quickly change the flow area. With an increase in the opening of the damper, the grain flow will have a significant thickness, as a result, a decrease in the effect of the magnet on the upper layers of the flow.

The closest in technical essence is the "Grain cleaning separator" RF patent No. 125900, publ. 03/20/2013, consisting of a body resting on racks, which has a loading pipe and an unloading pipe. Inside the housing there is a separation channel, consisting of vertical and radial parts with a magnet at the level of the loading nozzle, a radially curved replaceable separation grate and housing walls.

The disadvantage of this device is that the grain flow entering the separator collides with a magnet set at an angle of 90°. Based on this, not all layers of grain are in contact with the magnet, as a result of which magnetic impurities enter the unloading with whole grain.

The technical task is to create a small-sized magnetic separator, easy to manufacture, to increase the efficiency of separating grains of magnetic impurities.

The problem is solved by the fact that the separator, consisting of a housing with a loading and unloading branch pipe, contains inside a separation channel, consisting of vertical and radial parts and formed by a partition in the form of a metal plate with a loop-shaped end installed in the form of an auger with a magnet on a pen in the loading branch pipe , a radially curved separation grate and body walls, while in the vertical part heavy and magnetic impurities are cleaned due to the gravitational force and a magnet, and in the radial part fine impurities are screened out through the separation grate due to centrifugal forces. The filling of the lower part of the housing with screened impurities is controlled using a viewing window on the rear wall of the housing. The precipitated impurities are removed through a cover hinged in the lower part of the body, on which a damper is installed, with the help of which the aerodynamic force in the loop-shaped channel is adjusted.

In FIG. 1 shows a general view of a grain cleaning magnetic separator. In FIG. 2 - grain cleaning magnetic separator in section. In FIG. 3 - auger with a magnetic pen, where 1 - housing, 2 - supporting racks, 3 - loading pipe, 4 - unloading pipe, 5 - separation grate, 6 - metal plate, 7 - vertical separation channel, 8 - radial separation channel, 9 - viewing window, 10 - auger with a magnetic pen.

The device for the grain-cleaning magnetic separator consists of a housing 1, based on racks 2, which has a loading pipe 3 and an unloading pipe 4. Inside the housing 1 there is a separation channel, consisting of a vertical 7 and a radial part 8 and formed by a partition in the form of a metal plate 6 with a loop-shaped the end and the screw with a magnet feather 10 installed in the loading pipe 3, a radially curved replaceable separation grate 5 and the walls of the housing, while in the vertical part 7 heavy impurities are cleaned due to gravitational force, and magnetic impurities are deposited on the magnetic feathers 10 due to reduction and alignment of the air-grain flow over the entire plane of the feather. In the radial part 8, fine impurities are screened out through the separation grate 5 due to centrifugal forces. The operation of the auger with a magnetic pen is controlled using the viewing window 9 on the loading pipe. Metal impurities from the screw with a magnetic pen 10 are removed after the technological process is carried out together with the screw, after separation from the loading pipe 3.

The installation works as follows. The material to be cleaned with an air flow is fed through the loading pipe 3, in which a screw with a magnetic pen 10 is installed, as a result of air movement, the grain layer becomes thinner and moves along the screw 10, on which metal-magnetic impurities are deposited. Further, the material, purified from large and metallic impurities, moves along the radial part 7 of the separation channel 7. The perforated separation grate 5 ensures the separation of small impurities under the action of centrifugal forces into the settling chamber and the promotion of the air product flow along the channel. The cleaned material is discharged through the unloading pipe 4.

The claimed separator is easy to manufacture, small in size, can operate in a continuous air stream (for example, as part of a feed mill, including a crusher with a fan) and provides separation from grain of impurities that differ in size and metal-magnetic properties.

Claims (1)

Grain-cleaning magnetic separator, consisting of a housing with loading and unloading nozzles, a separation channel and a separation grate, characterized in that an auger with a magnetic pen is installed in the loading nozzle.

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