RU2841571C1 - Apparatus for cleaning gases - Google Patents

Abstract

FIELD: performing operations.

SUBSTANCE: proposed apparatus is intended for cleaning gases of dust and other solid particles. It can be used in various branches of industry. Gas purification apparatus contains a cylinder-conical housing, to the upper end part of which the outlet branch pipe is coaxially connected, to the cylindrical part side surface, in its upper zone, is the inlet branch pipe, and in the lower part a hopper is arranged, communicating with the conical part of the housing through the unloading opening, in the inner volume of the housing. In the conical part, a screen is installed with the possibility of vertical movement, which is a shell of rotation with a curved generatrix, and the top of the screen is located on the axis of the cylinder-conical body in the zone of its conical part, and through holes and radial partitions are arranged around top of screen in annular rows. Device for vertical movement of screen is installed on outlet branch pipe.

EFFECT: proposed apparatus, with its relatively simple design and low hydraulic resistance, allows for the effective purification of contaminated gases containing solid particles in varying quantities and differing in physical and mechanical properties.

1 cl, 2 dwg

Description

The proposed device is designed to clean gases from dust and other solid particles. It can be used in various industries.

A dust collector-classifier is known [Patent of the Russian Federation No. 2497569 IPC B01D 45/04, published on 10.06.2013, BI No. 16], comprising an inlet pipe, dust discharge pipes, a coaxially located receiving cylinder, an outlet pipe and a screen used to change the direction of flow, a second stage of gas purification from dust, equipped with an inclined bottom. The body contains three stages of dust-laden gas purification, the inlet pipe has a spiral shape, the pipes for removing large and medium dust fractions are located on one inclined bottom, and fixed blades and a conical bottom are located at the third stage of purification.

The disadvantages of this device include the complexity of the design, low degree of purification, limited range of application (the ability to separate solid particles of a certain size and shape) and increased hydraulic resistance.

The closest to the proposed one is a gas cleaning apparatus comprising a cylindrical-conical body, to the upper end part of which an outlet branch pipe is coaxially connected, to the side surface of the cylindrical part, in its upper zone, an inlet branch pipe, and in the lower part a hopper is located, communicating with the conical part of the body through a discharge opening. In the internal volume of the body, in its conical part, a coaxial cylindrical-conical screen is installed with the possibility of vertical movement, wherein the taper angle of its conical part coincides with the taper angle of the conical part of the body, and the diameter of the cylindrical part of the screen is less than the diameter of the discharge opening, in addition, the cylindrical-conical screen is provided with a vertical movement drive located in the internal volume of the hopper and connected to the cylindrical part of the cylindrical-conical screen by means of radial spokes and closed with an elastic casing [RU Patent No. 2688545 IPC B01C 5/14; B01C 5/181; B01D 45/12, published. [21.05.2019, BI No. 15].

The disadvantages of this device include the complexity of the design, low degree of purification and increased hydraulic resistance.

The technical result of this invention is the creation of a gas cleaning apparatus of a relatively simple design, with high cleaning quality and low hydraulic resistance.

The technical result is achieved by the fact that a device for cleaning gases is proposed, containing a cylindrical-conical body, to the upper end part of which an outlet branch pipe is coaxially connected, to the side surface of the cylindrical part in its upper zone an inlet branch pipe, and in the lower part a hopper is located, communicating with the conical part of the body through a discharge opening, in the internal volume of the body, in its conical part a screen is installed with the possibility of vertical movement.

The distinctive design features of the proposed invention are that the screen is a shell of revolution with a curvilinear generatrix, wherein the top of the screen is located on the axis of the cylindrical-conical body in the area of its conical part, and through holes and radial partitions are arranged in annular rows around the top of the screen, and a device for vertical movement of the screen is installed on the outlet branch pipe.

Fig. 1 shows a diagram of a gas cleaning apparatus.

In fig. 2 shows view A.

The apparatus for cleaning gases comprises a cylindrical-conical body 1, to the upper end part of which an outlet branch pipe 3 is coaxially connected, to the side surface of the cylindrical part, in its upper zone, an inlet branch pipe 2, and in the lower part a hopper 4 is located communicating with the conical part of the body 1 through a discharge opening 5, in the internal volume of the body 1, in its conical part, a screen 6 is installed with the possibility of vertical movement. The screen 6 is a shell of revolution, with a curvilinear generatrix, wherein the top of the screen 6 is located on the axis of the cylindrical-conical body 1 in the zone of the conical part of the cylindrical-conical body 1, and around the top of the screen 6, through holes 7 and radial partitions 8 are located in annular rows. The device for vertical movement 9 of the screen 6 is installed on the outlet branch pipe 3.

The gas cleaning device works as follows.

The gases to be purified enter the internal volume of the cylindrical-conical body 1 through the inlet pipe 2. Having entered tangentially into the upper zone of the cylindrical part of the cylindrical-conical body 1, the flow of unpurified gas twists and moves in a spiral downwards, while under the action of centrifugal force, solid particles are thrown to the walls and move in the peripheral part of the flow. In this way, the concentration of solid particles near the walls of the body 1 occurs. Then, the solid particles move through the discharge opening 5 into the bin 4, where they accumulate. The purified gas in the conical part of the cylindrical-conical body 1 is directed toward the center, flows around the screen 6 and is discharged through the outlet pipe 3.

Due to the fact that the screen 6 is a shell of revolution, with a curvilinear generatrix, the purified gas flows around the screen from above, smoothly changing direction, and is directed to the outlet pipe. This allows separating the purified gas and solid particles moving into the bin 4, which prevents solid particles from entering the purified gas and increases the degree of its purification with a relatively low hydraulic resistance.

Due to the fact that the top of the screen 6 is located on the axis of the cylindrical-conical body 1 in the area of its conical part, where the separation of the flow of purified gas and the flow of solid particles occurs, its smooth flow is ensured with relatively low hydraulic resistance.

The presence of radial partitions 8 helps to spin up the flow of purified gas in order to reduce hydraulic resistance in the outlet pipe 3.

The creation of through holes 7 around the top of the screen 6 in ring rows ensures the pouring of accumulated particles that have entered the screen 6 with gas flows into the bunker 4. The presence of several through holes 7 ensures the removal of particles from the screen 6.

The vertical movement of the screen 6 allows for its rational installation depending on the type of gas being purified and the properties of the particles contained therein. The vertical movement device 9 of the screen 6 is installed on the outlet pipe 3.

Thus, the presence of screen 6, which is a shell of revolution, with a curvilinear generatrix, the top of screen 6 located on the axis of the cylindrical-conical body 1 in the zone of its conical part, ensures the separation of flows of purified gas and solid particles moving into bunker 4, which prevents their entrainment and improves the quality of separation.

The proposed device, with its relatively simple design and relatively low hydraulic resistance, allows for the effective purification of contaminated gases containing solid particles in varying quantities and differing in physical and mechanical properties.

Claims (1)

A device for cleaning gases, comprising a cylindrical-conical body, to the upper end part of which an outlet branch pipe is coaxially connected, to the side surface of the cylindrical part, in its upper zone, - an inlet branch pipe, and in the lower part a hopper is located, communicating with the conical part of the body through a discharge opening, in the internal volume of the body in its conical part, a screen is installed with the possibility of vertical movement, characterized in that the screen is a shell of revolution with a curvilinear generatrix, wherein the top of the screen is on the axis of the cylindrical-conical body in the zone of its conical part, and around the top of the screen through holes and radial partitions are located in annular rows, and a device for vertical movement of the screen is installed on the outlet branch pipe.