SU970055A1 - Incorporated dust trap for rotary kiln - Google Patents

Description

(, 54) BUILT-IN ROTATING DUSTTOPER

FURNACES

The invention relates to a technique for de-dusting and heat and mass transfer of rotary kilns and can be used in cement, metallurgy, chemical and other industrial sectors.

A built-in dust collector of a rotary kiln is known, which contains a confuser installed inside the kiln and a knee placed in front of the confuser along the gases a rotating support and fixed stationary support G1 fixed in the dust chamber.

The disadvantage of the known dust collector is the unreliability of its operation at increased viscosity of the sludge, which contributes to the overgrowth of the stationary device, as well as its limited use due to the impossibility of its installation in furnaces with a small dusty chamber, where it is impossible to fix fixed supports without destroying the camera.

The purpose of the invention is to increase the service life and expand the scope of use of the dust collector.

This goal is achieved by the integrated rotary kiln dust collector containing a confuser installed inside the furnace and a knee placed in front of the confuser along the gases of the rotating support and fixed fixed in the dusty chamber, provided with an axis fixed on the rear wall of the knee with an additional rotating support and levers which are connected to the fixed supports of the dusty chamber by means of spring stops, and in the course of the gases the rotating support is provided with perpendicular rods and a stop ring, p zmeschennym by converging tube axis.

At the same time, the built-in dust collector is equipped with pipelines for the entry of cooling air and pipes for cooling air located above them, connected to fixed supports, and the latter

20 are hollow.

FIG. 1 shows a built-in dust collector on two sliding supports, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - cut

25B-B in FIG. one.

The built-in dust collector consists of a confuser 1, an elbow 2, an additional rotating support 3, an axis

4 knee 2 and placed in the furnace body

thirty

Claims (2)

5 with the dust chamber 6, the first rotating support 7, the axis 8 of the confuser 1 with the stop ring 9, the reflector 10 through which the sludge pipe 11 passes. On the first rotating support 7 are installed the rods 12. The levers 13 are attached to the axis of the knee 2, the ends of which are connected to spring stops 14 mounted on movable supports 15 with pipes 16 and 17 for entry and exit of cooling air. Chains 18 are fastened to the rotations. The device operates in a slow motion mode. The dust-laden gas enters the confuser 1 and passes through the knee 2 with a steam-vortex movement, makes one revolution and is removed into the dust chamber 6. Dust is released onto the outer wall of the knee 2, is concentrated in the dust harness and is poured into the moving slurry, with which into the furnace 5. The confuser 1 and knee 2, due to the rotation of the furnace 5 and the spring stops 14, receive oscillatory movements with a given amplitude and frequency, which prevents the dust collector from overgrowing and enlarges the dust particles, thereby increasing the efficiency of cleaning ki. In order to {Increase the service life, the fixed supports 15 are hollow and cooled with outside air due to natural draft, while the inlet of conduit 16 is located 2-3 m lower than the outlet of conduit 17 .. Application of the proposed inline dust collector services of the device, to expand the scope of application and to increase the efficiency of gas cleaning inside the rotary kiln. Formula of the invention 1. Built-in rotary kiln dust collector containing a confuser installed inside the furnace and a knee placed in front of the confuser along the gases a rotating support and fixed stationary supports in dusty xyler, in order to increase service life and expand the field of application, it is equipped with an axis fixed on the back wall of the knee with an additional rotating support and levers, the ends of which are connected to the fixed supports of the dusty chamber by means of spring stops, and the first gases move rotatable support rods and provided with abutment stop ring, placed on the axis of the converging tube. 2. Dust collector according to claim 1, characterized in that it sleeps & cooling cooling air inlet pipelines and the cooling air outlet pipe1 located above them, connected to fixed supports, and the latter are puffy. Sources of information taken into account in the examination 1. USSR author's certificate 734491, cl. F 27 B 7/20, 1978 (prototype). 3-3  tsh ////////. sixteen i.e