SU1360782A1 - High-rate bag filter for double cleaning - Google Patents

Abstract

The invention relates to gas cleaning and can be used to remove dust from the air. The purpose of the invention is to increase the cleaning efficiency and simplify the design. The double-speed bag filter contains a cylindrical body 1, in which the outer 15 and inner 16 filter elements are mounted coaxially with the formation of an annular cavity of variable section, attached in the upper part to the rims 12 and 13 of the double-circuit impeller 11. The filter is provided with an opening mi 20 on the inner wall with a half-flange 19 and a plug 18 attached to it, while the half-and-a-half 19 is attached to the bottom of the internal filter element I6. In addition, the angle of inclination of the walls and a half equal to the angle of inclination of the filter elements. 1 hp f-ly, 1 ill. а (с: со О5 О vl 00 IsD «

Description

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Hsoeperesofe relates to gas cleaning and can be used to remove dust from the air.

The purpose of the invention is to increase the cleaning efficiency and simplify the design.

The drawing shows the device, General view.

The double-cleaning high-speed bag filter contains a cylindrical body 1c with a tangential inlet pipe 2, an outlet nozzle 3, a dust collector 4 Along the axis of the cylindrical body 1 there is a pipe 5 with openings 6 and an open end, and in the upper part a tubular collector 7 with an annular gap 8 along its inner perimeter j inlet 5 g “and pipelines 9 with a regulating device 10. Under the outlet nozzle 3 there is a double contour hinge 1, the angle of inclination of the blades of the external and internal contours of which provides the same e Kie .ih direction of rotation at the opposite motion .nii air flow therein of outer and inner contour of the impeller P respectively cover 12 to the outer i3 The inner shell,

To the upper part of the outer shell 12 is attached ring. To 45. Included in the annular slot 8 of the tubular collection.

the torus 7a to the bottom is an external filter element IS, inside of which an internal filter element 6e is coaxially mounted attached to the upper part of the inner shell 13. The filter elements are arranged to form an annular cavity of variable cross section External filter element 15 at the bottom supplied with a ring. 1 7, ensuring its tension. The inner filter element 16 is provided with a plug 18j of a coupling with an annular half sash 19s over the inner side of which there are views - yen holes 20. The ring half sash is placed with the possibility of protecting the outer part of the external filter element.

The double-speed high-speed filter sleeve works like a skin.

Under the action of the fan (GS-Kazan), the dusty air enters through the tangential inlet nozzle 2 into the cylindrical body, while making a large fraction of the flow through

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a cyclone effect, the output of the I in the bunker 4 for collecting dust. Then the partially purified air penetrates through the rotating air layer formed by air S through the annular cavity S located between the outer 15 and inner 16 filter elements, and reflected by the outer wall of one and a half 19 parallel to the surface of the outer filter element, directed down up. In addition, the dusty air overcomes the resistance of the air flow 15, which penetrates through the surface of the external filter element from the annular cavity of the variable se-. where it enters from the upper part of the housing 1. due to the pressure of compressed air supplied through the inlet pipe 9 to the tubular collector 7 and the annular gap 8, as well as due to the vacuum developed by the second contour of the double-circuit impeller 11. Overcoming these air flow resistances 5, the dusty air increases the speed of its rotational motion due to contact with them, and the centrifugal forces that occur during eton 30, together with this resistance, increase the degree of air purification from dust, the greater the flow rate of air supplied to the tubular manifold 7, the greater the number of revolutions the double-contour impeller-P develops due to the increase in the number of revolutions of its outer contour, the greater the resistance overcomes the dusty air 40 supplied to the cleaning, the higher the degree air purification from dust.

Further, the air partially cleared of dust penetrates through the surface 45 of the external filter element 15, leaving part of the dust not THT and, under the action of the center of forces, but also the flow of air passing through the surface of the top 20 filter element 15 . Cavity5 Dust caught is discharged from the trap and moves towards SanTsifi SHHOMy Air Sho At this, the collision of the collision of the particles occurs. gg n; o -; They have the speeds in the tank out of the cylindrical body 1 to the bunker 4; 1l of dust collection. Irn is the most dusty - dusty Edozduh fall.

A variable cross section where the dust particles are carried by the air flow supplied to it by the outer contour of the double-impeller in the direction of one and a half 19, In addition, dust trapped in the annular cavity formed by the outer 15 and inner 16 filtering elements 16, by blowing it out with compressed air leaving through the openings 6 of the pipe 5. At the same time, the dusty air rotating mass moving in the annular cavity to the one and a half 19 is itself a filtering medium, which akzhe povshgaet degree of air purification. The air thus cleared of dust then passes through the surface of the filter element 16, being subjected to regular cleaning, and finally purified is removed through the pipe 3.

When increasing the number of revolutions of the outer contour of the impeller 1 by increasing the volume supplied through the regulating device 10

air speed increases and

associated with the impeller of the outer 5 and inner 16 filter elements, while they are partially twisted, and the twisting of the outer filter element 15 occurs faster due to the lower weight of the tension ring 17 than one and a half 19. The cross section of the annular cavity varies along the entire height filter elements, which allows to increase the speed of air movement in the annular cavity, as well as the rate of air penetration through the fabric of filter elements towards the flow of the gas to be purified and thus air flow, flowing through the annular gap 8, flows around the ring 14 and the support; “the double-impeller 1 1 is suspended, and some of the air coming out of the housing 1 prevents dust from the latter from entering the outlet 3, the other part of the air enters Into the upper part of the housing 1, a.) is pumped) from the annular cavity formed by the filter-40 elements, and then goes through the one-and-a-half body 19 into the filter housing.

thirty

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The compressed air, the outlet from the opening end of the pipe 5, acts on the cap 18 and thereby

pour the process of tissue regeneration filter-. 45 tension internal filtering

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steering elements.

 When regenerating the fabric of the inner filter element 16 by blowing it out with compressed air from the holes 6 of the pipe 5, a part of the dust settled on the outer surface of the inner filter element 16 is blown into the annular cavity and, pro- ducting, deposits on the inner surface of the outer filter element 15 Penetrating into the latter, it creates a filtering layer in it, gradually increasing its thickness, which under the action of centrifugal

element b, and the output through the holes 20 of the inner face of the half-5a provides air lubrication when turning the air flow, the output. 50 through the annular gap between the filtering elements, thereby reducing the resistance to the rotation of the air flow, and also centers the position of the plug 18 relative to the Cylipdri 55

1. The decrease in the aerodynamic resistance of the air flow when it is turned 1 in.

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forces can reach certain thicknesses and thereby increase the degree of air purification from dust. The dust layer accumulated in this way is periodically destroyed by the action of the air flow moving down the annular cavity, as well as when the filtering elements are twisted. In addition, part of the dust can penetrate the surface of the external filter element and impede the movement of dust particles of the cleaned air to the filter surface, thereby contributing to the air purification process. Due to the imbalance of oncoming airflows passing through the contours of impeller i1, the elevating forces of the impeller in the container have opposite directions that cause the impeller and the filter elements connected with it to vertical opposite directions, which ensures the regeneration of the latter by from continuous shaking of Ni, as well as an increase in the degree of purification due to vertical displacements of filter elements. .

The air supplied through the annular slot 8 flows around the ring 14 and the base; “the dual impeller 1 1 is suspended, and part of the air, going out to the housing 1, prevents dust from passing through the last to the outlet 3, Other part air enters the upper part of the housing 1 and is pumped) from the annular cavity formed by the filter elements, and then goes through the half-hour 19 into the filter housing.

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element b, and the output through the holes 20 of the inner face of the half-5a provides air lubrication when turning the air flow, the output. through the annular gap between the filter elements, thereby reducing the resistance to rotation of the air flow, and also centers the position of the plug 18 relative to the Cylipdri

1. The decrease in the aerodynamic resistance of the air flow when it is turned 1 in.

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elements. In addition, the coincidence of the angles of inclination of the one and a half and filter elements contributes to the formation of a rotating air flow, the jets of which, extending parallel to the generator surface of the filter elements, have a direction perpendicular to the direction of the gases being cleaned, causing them to deflect to the walls of the body and trapping, which ultimately also increases the degree of dust removal from the air.

The use of the invention will improve the efficiency of air cleaning from dust and simplify the design of the filter. This is achieved due to the arrangement of the filter elements coaxially with the formation between them of an annular cavity of variable cross section, in which a dust filter layer is created due to the removal of dust generated from the external surface of the internal filter element and the air into the annular cavity. there is a rotating air curtain and a part of the air escapes through the surface of the filter element to meet the flow of air to be purified.

At the same time, piquus particles captured by the internal filter element and impregnated by the compressed homogenous tube through the holes 6 of the pipe 5 into the annular cavity increase the concentration of dust in it, facilitate cleaning, and cross the annular cavity, settle on the inner surface of the external filter element. there is a filtering layer of dust, the passage through which the air cleaned from the air is more thoroughly cleaned. To this

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air flow containing the pinch particles, which increases the degree of air purification from the pierce, and the presence of an annular one and a half connected to the cap and placed in the lower part of the internal filter element, with the possibility of covering the lower part of the external filter element ensures a smooth rotation and direction of the secondary flow air along the outer surface of the external filter element, thereby increasing the degree of air purification from dust by reflecting the gas to be cleaned, at the same time compressed air, output w; through the end of the regeneration tube and reflected from the plug, it comes out of the holes made around the perimeter of the one and a half, and at high speed slides along the outer face of the semi-alternator, forming a rotating flow of secondary gas along the surface of the external filter element and passing penetration of the flow of the purified gas through the surface of the external filter element.

Simplification of the filter design is achieved by eliminating the ejection device and the pipeline for transporting the slit into the bunker. In addition, the degree of air purification from air can be adjusted by changing the volume of air supplied to the annular cavity, thus increasing 30

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Claims (1)

1. High-speed bag filter the air reflected by the cleaning 45, which includes the housing, also contributes. a plug passing through the holes of the one and a half, and guided by its outer wall along the surface of the external filter element. Placing the filter elements coaxially allows secondary air to be supplied into the annular cavity formed by them, which provides for the withdrawal of particles from the annular cavity of the drilled particles deposited on the outer surface of the internal filter element, thereby creating a filter medium consisting of transversely moving 50 55 a tangential gas supply nozzle connected to conical filtering elements of a dual circuit crink bin for collecting drums and a regenerating device, which is different from the fact that, in order to increase the cleaning efficiency and simplify the design, the filter is equipped with a half wall made with holes on the inner wall and attached to it is zag, with the filter elements mounted coaxially, and the semi-tor is attached to the bottom of the internal filter element. 0 five 0 782 6 air flow containing the pinch particles, which increases the degree of air purification from the plug, and the presence of an annular one and a half connected to the plug and placed in the lower part of the internal filter element, with the possibility of covering the lower part of the external filter element ensures a smooth rotation and direction of the secondary air flow along the outer surface of the external filter element, thereby increasing the degree of air purification from dust due to the reflection of the gas being purified, while the compressed air is output, w; through the end of the regeneration tube and reflected from the plug, it comes out of the holes made around the perimeter of the one and a half, and at high speed slides along the outer face of the one and a half, forming a rotating stream of secondary gas along the surface of the external filter element and also penetrates flow of gas to be purified through the surface of the external filter element. Simplification of the filter design is achieved by eliminating the ejection device and the pipeline for transporting the slurry to the bunker. In addition, the degree of air purification from air can be adjusted by changing the volume of air supplied to the annular cavity, thus increasing five 0 the rotational speed of the impeller, and the increasing centrifugal forces and the velocity of the air in the annular cavity prevent penetration of the drilled particles through the filter, thereby increasing the cleaning efficiency. Formula from 9bret 1. High-speed bag filter 45 cleaning, comprising a housing. 50 55 a tangential gas supply nozzle connected to conical filtering elements of a dual circuit chip, a collection bin and a regenerating device, characterized in that, in order to increase the cleaning efficiency and simplify the design, the filter is equipped with a half faceted hole on the inner wall and the pin attached to it, with the filter elements mounted coaxially, and the half-column attached to the bottom of the internal filter element.  713607828 2, the filter in accordance with claim 1, 1, and l and h to the walls of one and a half is equal to the angle of inclination u and that the angle of inclination of the filter elements.