SU814403A1 - Separator for explosible dust-like materials - Google Patents

Description

Union of Soviet

Socialist

Republics

DESCRIPTION

Inventions

TO AUTHOR'S CERTIFICATE

оо814403 (61) Additional to author. certificate-wu (22) Declared 2805.79 (21)

2770082 / 23-26 (51) M. Cl. ³ with the addition of application No. (23) Priority Published on March 23, 81 Bulletin No. 11

Date of publication of the description 2 30 3.81

B 01 D 45/12

B 07 B 7/08 (53) UDC 621.928.

.93 (088.8)

(72) The inventors V.E. Mizonov, S.G. Ushakov, Yu.N. Muromkin / ~ * - · ------....... D.V. Tupitsyn and S.M. Beardless: j (71) Applicants ¹ . · I ('' · '* ·'.. '· I Ivanovo Power Engineering Institute named after V. (I. Lenin * 1 and Syzran Turbine Building Plant ι.) 1

(54) SEPARATOR FOR EXPLOSIVE DUSTY

MATERIALS ¹ The invention relates to a device for separating a mixture of explosive powder materials and may find application in chemical, energy and other industries.

Known separators of powdered materials containing coaxially mounted two housings, vertical swirl vanes located above the inner housing, nozzles for supplying raw material and removal of separation products [1) and [2].

However, a disadvantage of the known devices is the low degree of extraction of fine dust from the original product.

A high-performance separator for powdered materials is known, comprising a cylindrical-conical body, a cylindrical-conical insert placed therein, a flow swirl with rotary blades placed in an annular channel between the body and the insert, input and output branch pipes, the body being provided with a concave cover and the insert is convex And ~ The disadvantage of the device is · the possibility of deposits of dust on a slightly inclined surface of the cover of the insert, which leads to the risk of spontaneous combustion of dust and explosion and makes it not possible acceptability for the classification of explosive materials.

The purpose of the invention is to eliminate the possibility of dust deposits on the elements of the separator and thereby increase the explosion safety.

The goal is achieved by the fact that the separator is equipped with radial blades installed in the upper part of the cylinder-conical insert15, the angle of inclination of which to the horizontal axis is not less than the angle of repose of the pulverized material.

Figure 1 shows a separator in general view; figure 2 is a section aa in figure 1.

The separator comprises a cylindrical-conical body 1 with a concave cover 2, 25 a cylindrical-conical insert 3 coaxially mounted therein, a flow swirl with rotary blades 4, radial inclined blades 5 installed in the upper part 30 of the insert 3, inlet pipe 6, patrol side 7 exhaust gas with fine dust and nozzles 8.9 removal of coarse dust.

The separator works as follows.

Through the inlet pipe 6, the dust-gas mixture enters the space between the housing and the insert, where large particles are separated from the stream by gravity. Separated particles are discharged through the cutter 8. The remaining part of the smaller particles enters the blades 4, which swirl the flow to the desired value, which is regulated by the angle of rotation of the blades. In the space between the concave cover 2 and the blades 5, the mixture is finally divided into small and large particles. Small particles of dust together with the gas enter the nozzle 7, and large particles under the action of centrifugal force are mainly allocated to the inner wall of the housing and crumble into the nozzle. 8, and some part, approximately 25-30%, falls on the blades 5 of the insert 3 and flows freely into the cavity of the insert and is removed through the pipe 9.

The installation on the insert instead of a convex cover of blades inclined at an angle to the horizontal axis not less than the angle of natural slope of the explosive powder material to be separated makes it possible to exclude the possibility of depositing dust on them, i.e. significantly increase the explosion safety and, consequently, the reliability of the design.

Claims (1)

(54) SEPARATOR FOR EXPLOSIVE DUST MATERIALS BY DRAWN 7 gas outlet with a small PELLY and branch pipes 8.9 coarse dust removal. The separator works as follows. Through the inlet 6, the dust-gas mixture enters the space between the casing and the insert, where large particles are separated from the stream by gravity. The separated particles are discharged through cuttings 8. The remaining part enters the vanes 4, which twist the flow to the desired value, adjustable angle of rotation of the blades. In the space between the concave cover 2 and the paddles 5, the final separation of the mixture into small and large particles takes place. Small particles of dust along with gas enter the pipe 7, and large ones, under the action of centrifugal force, mainly emit on the inner wall of the casing and fall into the pipe. 8, and some part, approximately 25-30%, falls out onto the blades 5 of the insert 3 and flows unhindered into the insertion cavity and is removed through the nipple 9. Installing on the insert instead of the convex blade cover inclined at an angle to the horizontal axis not less the angle of the natural slope of the partitioned explosive powder material, it eliminates the possibility of dust deposition on them, i.e. to significantly increase the explosion safety and, consequently, the reliability of the design. Claims of an Invention Separator for explosive dust-like materials, comprising a cylindrical-conical body, a concentric cylindrical-conical insert accommodated therein, a flow curler with rotating vanes placed in an annular channel between the body and the insert in order to increase explosion safety by eliminating the possibility of dust deposition, it is equipped with radial blades installed in the upper part of the cylinder-conical insert, the angle of inclination of which to the zonal axis is not less than the angle, the repose of the separated pulverized material. Sources of information taken into account in the examination 1, USSR Copyright Certificate No. 231699, cl. B 01 D 45/14, 1967. 2, USSR Copyright Certificate No. 233613, cl. B 01 D 45/18, 1965. 3, USSR Copyright Certificate W 629954, Cl, B 01 D 45/12, 1975.