WO2018194493A1 - Élément filtrant d'un filtre à poche destiné à l'élimination industrielle de gaz et poussières - Google Patents

Élément filtrant d'un filtre à poche destiné à l'élimination industrielle de gaz et poussières Download PDF

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Publication number
WO2018194493A1
WO2018194493A1 PCT/RU2018/000250 RU2018000250W WO2018194493A1 WO 2018194493 A1 WO2018194493 A1 WO 2018194493A1 RU 2018000250 W RU2018000250 W RU 2018000250W WO 2018194493 A1 WO2018194493 A1 WO 2018194493A1
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WO
WIPO (PCT)
Prior art keywords
frame
transverse
metal
filter
ribs
Prior art date
Application number
PCT/RU2018/000250
Other languages
English (en)
Russian (ru)
Inventor
Андрей Александрович ТРАВКОВ
Original Assignee
Андрей Александрович ТРАВКОВ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Андрей Александрович ТРАВКОВ filed Critical Андрей Александрович ТРАВКОВ
Publication of WO2018194493A1 publication Critical patent/WO2018194493A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material

Definitions

  • the invention relates to environmental protection.
  • the invention relates to devices for purifying process gases and suction air from dust and harmful gaseous components of air.
  • the invention can be used at the enterprises of ferrous and non-ferrous metallurgy, at the enterprises of the chemical industry, at the enterprises of the food industry and enterprises of the production of building materials, as well as at other industries where air or gas is required to be cleaned of dust.
  • the utility model can be used in bag filters with pulsed regeneration of bag filter bags with compressed air or gas, in which the bags are located both horizontally and vertically.
  • Known filter element (cartridge element) of a bag filter with a horizontal arrangement of sleeves for industrial dust and gas cleaning consisting of a metal frame and a fabric sleeve, dressed on a metal frame, where the metal frame is inseparably connected to the metal fasteners of the filter element, with which the filter element is attached in the bag filter housing, while the metal frame consists of longitudinal and transverse inseparably connected by welding method
  • each of the transverse ribs of the frame has a geometric shape close to the rhombus
  • the geometric shape of each of the transverse edges of the frame close to the rhombus is inscribed in the classical geometric shape of the rhombus so that the length of the larger diagonal of the rhombus, into which the geometric shape inscribed close to the rhombus of the transverse edge of the frame lies in the range from 250 mm to 350 mm, and the acute angle of the diamond in which the geometric shape inscribed close to the rhombus of the transverse edge of the frame lies in the range from 14
  • Known filter element of the bag filter with a horizontal arrangement of the sleeves is located in the housing of the bag filter so that the large diagonal of the rhombus is vertical. Dirty gas or suction air is introduced into the bag filter housing. With the help of a filter cloth, the bags filter the dust that enters the filter housing with a stream of dirty gas or air. Pure gas or air enters the filter element, that is, in its inner part, where the frame of the filter element is located. Then clean gas or * air is removed from the bag filter housing.
  • the fabric sleeve After a set period of time or with an increase in aerodynamic resistance of the dirty gas or air flow, more than the set value, the fabric sleeve is purged with compressed gas or air from one side of the filter element, from the one where the fastener of the filter element is located, or from both sides of the filter element. The accumulated in the fabric sleeve is blown out and then accumulated in the lower part of the bag filter housing. The accumulated dust in the lower part of the bag filter housing is removed from the bag filter.
  • the horizontal filter elements have a very large length (approximately 2.5 m) with a relatively small cross-section (transverse dimension - 150 mm). When placed horizontally on filter elements with this length are loaded by their own weight. When fixing the ends of the filter element frame in the bag filter housing, the frame bends, changing the distances between the filter elements in the filter. This feature must be taken into account when filling the bag filter, but this same feature does not make it possible to increase the filling density of the bag filter with filter elements. In addition, such a lengthy product has a high bending deformation, which makes it difficult to remove the filter elements from the bag filter housing and insert them through the technological windows.
  • the frame of the filter element is made of thin rods of round shape in cross section, rectangular shape of cross section, or any other geometric shape of cross section. To reduce the weight of the frame, they try to minimize the lateral size of the rods, but at the same time, the bending and torsion of the frame greatly increase. And the increase in strength and spatial rigidity by increasing the transverse size of the rods leads to a sharp weighting of the frame. Since there can be several tens of pieces in a bag filter of such filter elements, the weight of each such element becomes significant.
  • the present invention is aimed at achieving a technical result, which consists in increasing operational characteristics by increasing the resistance to deflection and torsion to increase the density of the filter elements in the bag filter.
  • the metal frame consists of inseparably connected by welding made of metal rods longitudinal and transverse ribs, while the longitudinal ribs are made in the form of rectilinear segments of metal rods, and each transverse rib represents they are a flat element of a closed loop from a curved metal rod, while the fabric tubular sleeve is made blind at one end to cover the end part of the metal frame and open at the other end, each flat element of a closed loop of transverse ribs is made in the form of a frame of two flattened connected between oval-shaped contours symmetrically located along a long transverse dimension, while the opposite branches of each oval-shaped contour along a long transverse p zmera volnobrazno formed curved with the location one branch concavities opposite the con
  • each flat element of a closed loop of transverse ribs made symmetrical in the transverse and longitudinal directions. And from the blind end of the fabric tubular sleeve attached to the frame end plate with bent sides, to which the bent ends of the metal rods of the longitudinal ribs are welded.
  • the present invention is illustrated by a specific example of execution, which, however, is not the only possible, but clearly demonstrates the possibility of achieving the desired technical result.
  • FIG. 1 is a general view of a bag filter
  • FIG. 2 is a side view of the frame of the filter element
  • FIG. 3 is a top plan view of a filter element frame
  • FIG. 4 is a cross section AA of the frame of FIG. one.
  • a filter element 1 (cartridge element) of a bag filter 2 (FIG. 1) for industrial dry dust and gas cleaning is considered.
  • Such filter elements as cartridges or cartridges are horizontally inserted through the technological windows in the bag filter housing so that the larger transverse size of the cartridge element is located vertically.
  • the filter elements are arranged horizontally and vertically in rows at a certain distance from each other, sufficient for polluted air or gas flow to pass between these elements. The density of such elements determines the cleaning efficiency of the incoming contaminated agent. Dirty gas or air is fed into the bag filter housing 2 (key 3).
  • the bags filter the dust that deposits on the filter cloth and the cleaned gas or air enters the internal cavity of the filter element where the filter element frame is located. Then clean gas or air is removed (item 4) through the open end of the filter element from the bag filter housing.
  • pulses of compressed gas or air from the high pressure pulse supply system 6 are fed into the cavity of the filter element (Fig. 5) and the fabric sleeve is blown with this compressed gas or air from the open end of the filter element.
  • the fabric sleeve is blown with this compressed gas or air from the open end of the filter element.
  • Dust particles fall down the bag filter and accumulate in the lower part of the bag filter housing in a special hopper (which is periodically cleaned of accumulated dust).
  • the filter element consists of a metal frame 7 and a fabric tubular sleeve 8 stretched over this frame, sewn from a filter material.
  • a feature of the filter material is its throughput capacity, which allows the passage of clean gas or air while dust, soot and other contaminants remain on the surface of the material.
  • materials can be used materials made of fiberglass Paint Stop and Dust Stop, meltblown (Art.
  • the fabric tubular sleeve 8 is made blind at one end to cover the end part of the metal frame and open at the other end (Fig. 3). The open end is used to discharge purified gas or air from the bag filter.
  • the metal frame consists of longitudinal 9 and transverse 10 ribs made inseparably connected by welding among themselves made of metal rods.
  • the longitudinal ribs 9 are made in the form of rectilinear segments of metal rods, and each transverse rib 10 is a flat element of a closed loop of a curved metal rod.
  • Each flat element of the closed contour of the transverse ribs 10 is made in the form of a frame of two flattened interconnected oval-shaped contours symmetrically arranged along a long transverse dimension, while the oppositely located branches 11 and 12 of each oval-shaped contour along a long transverse dimension 13 are wave-curved with an arrangement concavities of 14 branches of one branch opposite the concavities of another branch, and longitudinal ribs in the form of metal rods are welded to the bulges of 15 branches of oval-shaped the contours of each frame.
  • each flat element of a closed loop of transverse ribs is symmetrical in the transverse and in the longitudinal directions, an equal-strength structure is formed that works equally on all sides in the framework of resistance to deformation.
  • an end plate 16 with bent sides is attached to the frame, to which the bent ends 17 of the metal rods of the longitudinal ribs 9 are welded. Since the fabric tubular sleeve has less strength with respect to the structure of the metal frame and is a stitched structure, then when a pulse pressure is applied to the cavity of the filter element (for cleaning the surface of the fabric sleeve from accumulated dirt), a powerful air shock occurs along the sleeve, including part of it. The direction of this pneumatic shock (shock air or gas wave) is towards the muffled part of the shell, which leads to the destruction of the sleeve in this zone.
  • longitudinal ribs in the area of the blind end of the sleeve is welded to the end plate 16, which is a limiter for the shock wave and a fuse for the sleeve.
  • the shock wave is reflected from the plate and changes the motion vector.
  • the metal frame is a structure in which all elements are in a position where the deformation of the element does not cause local stress and shape change in this element, but the perception of this deformation by other structural elements, that is, the load is redistributed. If the transverse ribs form a volumetric contour of the frame, then the longitudinal ribs hold these transverse ribs. With the deflection or torsion of the entire structure, the longitudinal ribs begin to deform, which leads to a change in the planar shape of the transverse ribs. The transverse ribs are deformed, first of all, losing the flatness of the closed contour.
  • the transverse ribs are made in the form of two complex geometric shapes of a closed outline of the frames, the branches of which are in a common plane.
  • a change in the shape of one left side of the frame should lead to a change in the shape of the other frame.
  • each part of the frame is a support for another part of the frame.
  • the wave-shaped forms of the frames determine the various conditions under which each frame can be deformed.
  • each of the parts of the frame is a kind of stiffener for another part of the frame.
  • the filter elements Since the filter elements have acquired increased strength, it becomes possible to increase the packing density of the filter elements in the bag filter, which with the same dimensions of the bag filter housing provides a deeper volumetric cleaning of industrial gases from dust and harmful components and a large filtration area.
  • the present invention is industrially applicable and can be implemented in industrial cleaning complexes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne le domaine de la protection de l'environnement. L'élément filtrant d'un filtre à poche destiné à l'élimination industrielle de gaz et poussières est constitué d'une carcasse métallique sur laquelle est tendue une poche en tissu en tissu filtrant, la carcasse métallique étant constituée de tiges métalliques reliées solidement par soudure et constituant des nervures longerons longitudinales et transversales. Les nervures longitudinales se présentent comme des segments droits de tiges métalliques, et chaque nervure transversale constitue un élément plat à contour clos en tige métallique cintrée. Chaque élément du contour clos formé par des nervures transversale est réalisé sous la forme d'un cadre en deux contours en forme d'ovale reliés entre eux disposés symétriquement en suivant la dimensions transversale longue, les branches opposées de chaque contour en forme d'ovale le long de la dimension transversale étant ondulée de manière à ce que les parties concaves de chaque branche soit disposées en face des parties concaves de l'autre branche, et les nervures longitudinales se présentent comme des tiges métalliques soudées aux parties convexes des contours en ovale de chaque cadre.
PCT/RU2018/000250 2017-04-20 2018-04-19 Élément filtrant d'un filtre à poche destiné à l'élimination industrielle de gaz et poussières WO2018194493A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2017113564 2017-04-20
RU2017113564 2017-04-20

Publications (1)

Publication Number Publication Date
WO2018194493A1 true WO2018194493A1 (fr) 2018-10-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2018/000250 WO2018194493A1 (fr) 2017-04-20 2018-04-19 Élément filtrant d'un filtre à poche destiné à l'élimination industrielle de gaz et poussières

Country Status (1)

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WO (1) WO2018194493A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134170A1 (en) * 2000-12-29 2004-07-15 Air Cure, Inc. Wire filter cage
RU2233697C1 (ru) * 2003-06-30 2004-08-10 Лазарев Владимир Александрович Рукавный фильтр
RU147542U1 (ru) * 2012-10-10 2014-11-10 Александр Савельевич Сосонкин Каркас фильтровального элемента рукавного фильтра с вертикальным расположением рукавов
RU151043U1 (ru) * 2012-09-13 2015-03-20 Александр Савельевич Сосонкин Фильтровальный элемент рукавного фильтра с горизонтальным расположением рукавов

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134170A1 (en) * 2000-12-29 2004-07-15 Air Cure, Inc. Wire filter cage
RU2233697C1 (ru) * 2003-06-30 2004-08-10 Лазарев Владимир Александрович Рукавный фильтр
RU151043U1 (ru) * 2012-09-13 2015-03-20 Александр Савельевич Сосонкин Фильтровальный элемент рукавного фильтра с горизонтальным расположением рукавов
RU147542U1 (ru) * 2012-10-10 2014-11-10 Александр Савельевич Сосонкин Каркас фильтровального элемента рукавного фильтра с вертикальным расположением рукавов

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