SU1212489A1 - Dust trap - Google Patents

Description

one

The invention relates to gas cleaning equipment and can be used to clean dust from aspiration air during the processing of various types of rock mass. mining enterprises.

The aim of the invention is to increase the efficiency of dust collection due to the increased effect of the complex of forces of the rotating electromagnetic exclusion field, the aerodynamic effect of the heated air flow on the settling flow of dust particles.

The drawing shows a piecher, a general view.

The dust collector consists of a housing 1 with an annular electromagnet 2 and a winding 3. Inside the electromagnet there is a filter element 4 of ferromagnetic material grains located between the wire grids 5. The filter element 4 has the shape of a hollow cylinder. The upper part of the filtering element 4 is provided with a plug 6. The lower part of the filtering element 4 adjoins the inner walls of the annular electro-.

magnet 2. Case 1 is connected to

a cyclone-shaped nozzle 7 having a dust collector 8 in the lower part. Inside the cyclone-shaped nozzle 7. there is an inlet 9, which consists of cylindrical 10 and conical 11 parts, while the conical part 11 is located in the cylindrical part 10 so that they form an annular chamber 12c discharge gap 13. Nozzle 9 without a gap adjacent to the bottom of the filter element 4. In this case, the walls of the nozzle respectively mate with the inner walls: the cylindrical part 10 - electromagnet 2, the conical part 11 - filter 4. The walls of the guide element portions 10 and 11 define an annular chamber 12 with the discharge gap 13 at the bottom. In the upper part of the housing 1 there is an outlet 14.

Dust collector works as follows.

The dusty air enters the cyclone-shaped nozzle 7, where it receives rotational motion, while due to inertial and gravitational forces, large particles are deposited in the dust collector 8. Small fractions

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Filling along the inlet 9 with air enters the filtering element 4, where under the action of inertial, gravitational, electrical magnetic, acoustic, vibrational and other forces coagulates into large aggregates. The coagulated dust is deposited and deposited on the surface of grains of ferromagnetic material. The grains of the ferromagnetic material vibrate continuously under the action of a rotating electromagnetic field, as a result of which the settled dust aggregates shake and fall out.

15, the annular chamber 12, and then through the discharge gap 13 enters the dust collector 8. Air passing through a layer of ferromagnetic material of the filter Element 4, is discharged

The 20 nozzle 14 is removed from the dust collector.

The use of a filter element in the form of a hollow cylinder increases the effect of coagulation, deposition and shaking of the particles captured in the filter element by bringing a layer of ferromagnetic material closer to the peripheral zone of an electromagnet having a maximum electromagnetic field strength in the cylindrical volume formed by the inner walls of the ring electromagnet. In addition, the “form” of the filter element is increased from 27 to 31% compared to the known dust collector. An air inlet with an annular chamber completely eliminates the aerodynamic Q. The mechanical effect of the upward air flow on the Sedi flow from the filter element is the flow of dust particles. All of the above contributes to an increase in the dust cleaning coefficient.

45 in this device, the filter element is made in the form of a hollow cylinder, which makes it possible to arrange a layer of forromagnetic material in the peripheral part (the zone of the largest

50 magnetic field strength of the ring electromagnet. As a result of this arrangement, the action of a comfortably acting force of a rotating electromagnetic field on

55 particles of ferromagnetic material and trapped dust.

The implementation of the filter element in the form of a hollow cylinder causes

 the possibility of the emergence of a new connection with the inlet for introducing into the filter element an upward flow of dusty air.

The supply of the fifth pipe consists of conical and cylindrical parts, with the conical part located in the cylindrical part so that their walls form an annular chamber and a central channel. The annular chamber serves to discharge a stream of precipitating dust particles from the filter element. Through the central channel, upward air flow to the filter element. ..

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 The inlet of the inlet pipe to the filter element is made without a gap in two mutually perpendicular planes (relative to the axis of the dust collector). The inner side walls of the filter element and the central channel of the nozzle are mated in a vertical plane. The lower base of the filter element 10 is mated with an annular chamber in

horizontal plane. The presence of such a connection of the filter element with the inlet pipe ensures separation of the countercurrent flow of the sediment 15 from the filter element of dust particles and the upward flow of air entering the filter element.

Claims (1)

A dust collector containing a cyclone nozzle, a housing, an annular electromagnet with a winding, grids, a filter element with a layer of ferromagnetic material, inlet and outlet nozzles, characterized in that, in order to increase dust collection efficiency by increasing the action of the complex of forces of a rotating electromagnetic field and eliminating the aerodynamic effects of the upward flow of air on the settling stream of dust particles, the filter element is made in the form of a hollow cylinder, equipped with a plug in its upper part and the inlet pipe - in the form of a cylindrical and conical parts, while the conical part is located in the cylindrical so that their walls form an annular chamber with a discharge gap in its lower part. SU_., „1212489> 1: