SU560630A1 - Gas cleaning device - Google Patents

Description

one

The invention relates to the technique of wet gas purification from solid, liquid or gaseous impurities and can be used in purification schemes of various industries, in particular in the metallurgical industry for the effective purification of gases from metallurgical furnaces of steelmaking, blast furnace and other industries.

A device for wet gas cleaning is known, comprising a housing with inlet and outlet nozzles, where a vortex chamber formed by vertically arranged blades is installed at the gas inlet, and irrigating fluid is supplied between the two of them by means of a choke. Cleaning times in such an apparatus occurs due to the high centrifugal forces acting on the particles in the vortex chamber l.

It is also known a device for gas purification, comprising a housing with a droplet separator and inlet and outlet nozzles, inside of which guide vanes are installed forming nozzles equipped with pipes for irrigating liquid and central

a pipe, an obrazukitsa with a drop catcher, an annular pocket 2. However, there is an overrun of the irrigated liquid.

To reduce energy consumption by reducing fluid flow, the device is equipped with a hydrocyclone, the inlet of which is connected to the annular pocket through a hydraulic device and the outlet is connected to the pipes of the irrigating fluid. Besides

Moreover, the blades in the proposed device are mounted with the ability to move vertically.

FIG. 1 given the proposed device, a longitudinal section; in fig. 2 - section

A-A of FIG. one.

The device includes a housing 1, inside of which is located along the axis a cone 2 with a brush 3 and a nozzle box 4. Tangentially located movable nozzles

Claims (2)

the boxes 4 are formed by guide vanes 5, the bottom of the cone 2 and the profiled surface of the housing 1 in which there are slots for the passage of the blades 5. The blades are vertically mixed together with the cone 2. The outer cone of the blade 5 is interconnected with the outer flange 6, mixing together with the box 4 along the central tube 7, which connects the swirl chamber of the nozzle box with the droplet separator 8, the upper part of the tube 7 and the drift catcher 8 are formed into an annular pocket 9 for collecting sludge. On the case of 1 c. A nozzle 10 is installed in the area of the nozzle box for supplying fresh irrigating fluid to the apparatus. The device is equipped with a hydrocyclone 11, the inlet 12 of which is connected to the annular pocket 9 through a hydraulic lock, and the outlet 13 is connected with pipes 14 and with a spray liquid into the nozzles. The hydrocyclone has a pipe 15 for removal of sludge. The device has an inlet and outlet nozzles 16 and 17. The proposed device operates as follows. Dust gas enters the housing 1 through the inlet 16, mine cone 2 which is connected by a rod 3 with a drive of the vertical movement of the cone and the nozzle box. The gas enters the movable nozzles of the box 4 formed by the blades 5, the bottom of the cone 2 and the profiled surface of the housing 1. In tangentially located nozzles, the gas accelerates to high speeds of 100 m / s and more. The gas leaving the nozzles in the vortex chamber of the box 4 acquires a rotational motion. The irrigating fluid into the vortex chamber of the nozzle box enters through the nozzle 10, where it forms into finely crushed rotating droplets and a layer that undergoes constant crushing and moving under the influence of new portions of gas entering the vortex chamber, the gas exiting The sop in the vortex chamber forms a rotating gas-liquid flow, counteracting the centrifugal forces acting on the liquid droplets and dust particles, increasing their residence time in the rotating dropping grain layer. This improves the dust absorption process by the liquid. Thus, due to the high-speed rotation of the gas-liquid flow with a high degree of turbulence, fine gas purification occurs at low specific consumption of the spray liquid. The volume of gas to be cleaned or the resistance of the apparatus is regulated by the vertical movement of the box 4. Its direction of travel is the central tube 7, along which the flange 6 slides, connecting the vanes of the nozzle box. Drops of liquid, carried away with gas streams, from the vortex chamber of the canister 4 through the central pipe 7 enter the trap 8 in the drop, in a rotating stream they are deposited on the walls of the appliance and run into a circular quarantine. From the annular pocket of the drift llama through the nozzle 12 enters the hydrocyclone 11. Hence, the clarified liquid through the nozzle 13 and the tube 14 is sucked by the injection nozzle (nozzles of the box 4 (into the zone of high gas velocities) due to the injecting capacity of the nozzle. The tube 14 is part of the injection nozzle nozzles. Thus, the clarified liquid is repeatedly used in the gas purification process. Condensed sludge from the hydrocyclone 11 is withdrawn for processing through the nozzle 15. The amount of fresh liquid supplied to the apparatus through the nozzle 10 is determined the amount of it evaporating in the gas, while the other part of the liquid involved in the cleaning process is in constant circulation without leaving the apparatus.The proposed gas cleaning device reduces the consumption of irrigation liquid (and therefore reduces the energy consumption of its processing), metal consumption (there are no pipelines and pumps for pumping recycled water), saves production areas (there is no working water supply cycle). Claim 1. Gas purification device, incl. a chakade body with a drop catcher and inlet and outlet nozzles, inside which guide vanes are installed. forming nozzles fitted with irrigating fluid supply pipes and a central tube forming an annular pocket with a drip catcher, characterized in that, in order to reduce energy costs by reducing fluid flow, the device is equipped with a hydrocyclone, the inlet of which is connected to the annulus 1m of the pocket through the hydraulic lock and the outlet - with irrigation fluid supply pipes. 2. Device pop. 1, differing from the fact that, the blades are installed with the ability to move vertically. Sources of information taken into account during the examination: 1.U. 891. 2. Forward No. 2164274/26 dated July 25, 75, according to which the decision was made to issue the author's testimony. llodjjumna irrigating idiocy FIG. g