SU1357081A1 - Vortex dust collector - Google Patents

Abstract

The invention relates to centrifugal gas cleaning processes from dry, non-adhering fluid and allows for an increase in dust collection efficiency when dust content and flow rate of gas to be purified are changed. The separator includes a housing 1 with a secondary flow inlet 4. In the housing there is a vortex chamber 2 with a nozzle 3 of the primary flow inlet, with a fender washer 5 and ko (L with Q1 O oo

Description

and an inset insert 7. The increase in dust collecting efficiency when dust content changes and the flow rate of gas to be purified is achieved by adjusting the cross section of the channel between the wall of chamber 2 and the conical insert 7. by changing the volume of the cone 1

The invention relates to gas cleaning technology and can be used to trap fine dust in the chemical, energy, metallurgical and other industrial sectors, the preferred area of use is the trapping of dispersed materials that leave the gas from the dryers.

The purpose of the invention is to increase the efficiency of dust collection when changing the parameters of dust and gas consumption. .

FIG. 1 shows a vortex dust collector; in fig. 2 - section A-A, in FIG. one .

The dust collector includes a housing 1 in which a vortex chamber 2 is placed with a nozzle 3 introducing a primary stream. A branch pipe 4 for introducing a secondary flow is located above the chamber, an otma-lock washer 5 is installed. In the apparatus, a rod 6 is placed along the vertical axis, the lower part of which is connected with a conical insert 7 located in the vortex chamber, the rod and conical insert have the possibility of vertical movement. In the gap between the washer and the chamber, springs 8 are installed, which make it easy to return the vertical bar to the lower position. Tangential inputs 9 are made around the circumference of the chamber in the lower part of its body, a vertical rotary shaft 10 passes through the hollow rod 6. The mechanism 11 for vertical movement of the fender washer is located above the clean gas outlet pipe and is designed as a ratchet with a lock. The washer 5 has a spiral groove 12

sa, made in the form of a spiral surface of a thin elastic material. The outer end of this surface is hinged in the slot of the fender, washers, and the inner joint is%; with a rotary shaft 10. 2 z. p. f-ly, 2 ill.

for moving the outer end 13 of the conical insert 7.

Dust collector works as follows.

The dust-laden gas is separated into primary and secondary streams and is injected through the corresponding nozzles into a dust collector. The primary flow through the nozzle 3 is introduced tangentially into the vortex chamber 2, the secondary gas flow is introduced into the upper part of the body. The primary flow moves to the exit from the vortex chamber, performs rotational-forward movement in the vortex chamber in the channel with a decreasing top-down section between the wall and the conical insert 7, the hinges of the centrifugal forces are pressed to the wall and output into the gap between the baffle plate 5 and lower end of the vortex chamber. The size of the gap is controlled by the axial gear mechanism,. nor, containing, a hollow rod 6 with the shaft 10 and ratchet mechanism 11,

In the lower part of the housing of the vortex chamber 2, around three or four tangential inlets 9 are made around the circumference, the direction of which coincides with the direction of flow of the primary gas. As a result, the secondary entrainment of the settling flow is reduced by vortex flows, as dust returns through these tangential inlets. The cleaned gas is directed upward along the surface of the cone, out through the opening in the chamber lid, rising upward along the rod 6, is encountered with a secondary gas flow,

dust at the interface of the two streams. The cleaned gas leaves the apparatus through the central nozzle in Krishke

apparatus. The springs 8 between the washer and the chamber return the rod 6 to the lower position and provide shaking of the washer, chamber and rod to remove any dust accumulated on them.

Adjusting the channel cross section between the wall of the chamber 2. And the conical insert 7 when changing the volume and flow rate of the purified gas is carried out by changing the volume of the conical insert, made in the form of a hollow spiral-shaped surface rolled from sheet steel with elastic properties. To do this, it is necessary to pivot the outer end of this Surface onto the jacking disc in the groove machined for this purpose in the form of a small portion of the Archimedes helix. The inner end of the conical surface is connected to the vertical shaft 10 passing through the hollow vertical bar 6 and having the ability to rotate. When the shaft turns, the surface of the thin hollow cone collapses, reducing the cone in volume, and when turning the shaft in the other direction, the surface expands. . In this case, the hinged end of the outer top

the cone moves along the worn-30 parts of the vortex chamber are made according to

Claims (2)

mu in a washer groove. In this way, the volume of the cone changes and the lateral clearance of the channel in the vortex built-in chamber is adjusted. The top of such a spiral-shaped hollow cone is fixed, for example, by means of a sleeve on a vertical pipe. Claim 1. Vortex dust collector, the circumference of the tangential inlets, the direction of which coincides with the direction of the primary gas flow. I 3. Dust collector according to claim 1, that is, it is provided with the fact that it is equipped with springs installed in an adjustable gap between the fender washer and the end of the vortex chamber, and the mechanism  vertical movement is located craving cylindrical body with tangen- 0 above the nozzle of purified gas output. O 0 The secondary inlet for the secondary gas flow, the outlet for the purified gas inlet, a conical base, a coaxially mounted vortex chamber with a tangential inlet for the primary gas flow and a conical insert inside, on a broad base of which is turned downwards, a breakaway washer is formed, forming an adjustable clearance with the lower butt-chamber and connected with the mechanism of vertical movement by a rod, characterized in that, in order to increase the efficiency of dust collection when the smell changes value and gas flow rate by adjusting the volume of the cone insert, the cone insert is made in the form of a helically folded elastic sheet, the fender washer is made with a spiral groove in which the outer end of the cone insert is hinged, and the vertical displacement rod is made hollow 5 and is equipped with a rotating shaft, connected to the inner end of the cone five inserts. 2. The separator according to claim 1, about the fact that in the lower and the circumference is tangential inlets, the direction of which coincides with the direction of the primary gas flow. I 3. Dust collector according to claim 1, which is based on the fact that it is equipped with springs installed in an adjustable gap between the fender washer and the end of the vortex chamber, and the mechanism vertical movement is located Editor I.Gorn Compiled by A.Safonov Tehred L. Serdyukova Proofreader A.Zimokosov Order 5921/6 Circulation 517 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Fie.2