SU1738310A2 - Device for cleaning gases - Google Patents

Abstract

Use: gas cleaning from liquid droplets and dust particles in the coal preparation, mining, chemical and other industries. SUMMARY OF THE INVENTION: The device comprises guide grooves arranged in parallel mounted on the inner surface of the cylindrical part of the body along the height of the tangential inlet nozzle with outlet ends entering into it. The chute is an open curved surface, for example a cylindrical curvature facing the wall of the housing at the point of attachment. 1 hp f-ly, 3 ill.

Description

The invention relates to a technique for cleaning gases from liquid droplets and dust particles, can be used in coal preparation, mining, chemical and other industries and is an improvement of the invention according to the author. Ns 1554983.

A device for cleaning gases is known, comprising a cylindrical body with a tangential inlet inlet in the lower part and an axial outlet inlet in the upper part, a cylindrical insert mounted coaxially with the housing, the upper end of which is plugged and located at the level of the upper edge of the inlet nozzle and an annular plate located on level of the lower edge of the inlet and installed with a gap between it and the wall of the housing. The distance between the outer surface of the cylindrical insert and the inner surface of the housing is greater or

equal to the width of the inlet. The efficiency of gas cleaning from dust particles depends on the rate of wetting of these particles, i.e. on the quality of splitting the liquid into droplets and on ensuring the necessary contact with the particles to be collected.

The known structure does not have a liquid crushing device. The crushing functions are performed by an additional unit (for example, the grate is taken outside the device, and the increase in the wetting rate of dust particles is associated with an increase in the supply of crushed liquid to the device, i.e., an increase in its consumption.

The aim of the invention is to increase the gas cleaning efficiency due to the use of crushed sludge mixture in the cleaning process for additional wetting of dust particles in the gas being cleaned. This is achieved by providing the device with the same guides XJ CO 00

with

Yu

foreheads parallel to the inner surface of the cylindrical part of the body along the height of the tangential inlet nozzle with outlet ends entering it (the nozzle). The chute is an open curved surface (e.g., a cylindrical surface), which is curved towards the wall of the housing at the point of attachment.

1 shows a gas cleaning device, longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2.

The device comprises a cylinder-conic case 1 with a tangential inlet pipe 2 in the lower part and an axial outlet pipe 3 in the upper part. A cylindrical insert 4 is coaxially installed inside the housing 1. A ring plate 5 is installed at the level of the lower edge of the inlet nozzle. Guiding grooves 6 are located along the inner surface of the cylindrical part of the body along the height of the tangential inlet nozzle 2. 2. The optimal design of the gutter 6 is the proposed construction, which in the cross section is an open curved surface (e.g., cylindrical), formed curvature inside the body.

The device works as follows.

The working fluid and the gas to be purified flow through the tangential inlet 2 to the lower part of housing 1. The mixture acquires a rotational motion, ensuring the contact of dust particles with liquid droplets. Under the action of centrifugal force, the dust and liquid particles are thrown onto the wall of the housing 1, where a moving surface layer of sludge is formed. The flow of the cleaned mixture in the building

Section 1 entrains a part of the near-wall layer on parallel-arranged channels 6, accelerates t and throws the sludge onto the inlet section of the tangential nozzle 2. In this case, additional irrigation of dust particles by sludge droplets is formed. In the working process, an equilibrium system is established in which the bulk of the moistened dust particles (in the form of sludge) is lowered in the near-wall layer into the conical part of the body, and then into the sump. A part of the sludge (its quantity is determined by the capacity of the gutters) is entrained by the chutes in a repeated cycle, contributing to the additional saturation of the gas flow with wetting drops. The curvilinear shape of the surface of the gutter with a curvature facing the inside of the body prevents the slurry flow from the gutters from breaking off when it enters the tangential inlet.

Use in the working process of the slurry to seal the drip veil b; It accelerates the wetting of dust particles and the intensification of sludge formation, and the gas cleaning process in the device becomes richer and more efficient.

Claims (2)

1. Gas purification device according to autor. N ° 1554983, characterized in that, in order to increase the gas cleaning efficiency, it is provided with guide chutes parallelly mounted on the inner surface of the cylindrical part of the body along the height of the tangential inlet nozzle and made with the exit ends deepening into the nozzle lumen. 2. Pop-1 device, characterized in that each groove has the form of an open curved surface facing curvature against the wall of the body at the fixing point. .L  ,, -: .h 75 - / cbtfr.J