SU894927A2 - Filtering element of filter bag - Google Patents

Abstract

FILTER ELEMENT SLEEVE. FILTER ON AUTH. St. 698202, characterized in that, in order to revise the inner zone of the filter element, in one of the seam sections between the compartments, a through slot is made parallel to the axis of the filter element. 1 (L ace.% /

Description

This invention relates to a dust collection technique and can be used in those industries where fine gas cleaning is required from dust.

A filtering element of a bag filter is known, consisting of two concentrically located cuckwos, in which the outer diameter of the inner and inner diameter of the outer sleeve are equal, and the sleeves are connected to each other along regular intervals of 1.

The disadvantages of the known filtering element are the difficulty of organizing the revision / inner zone of the filtering element during operation.

The purpose of the invention is the revision of the inner zone of the filter element.

This is achieved by the fact that in the well-known filtering element of a bag filter consisting of two concentrically arranged sleeves,

the outer diameter of the inner and inner diameter of the outer shell are equal, and the sleeves are connected between the switchboard and forming at regular intervals, a through slot is made parallel to the axis of the filter element.

FIG. 1 shows the proposed filter element, a general view; in fig. 2 is a section A-A in FIG. 1 in working position; in fig. 3, section A-A in FIG. 1 in the process of regeneration; in fig. 4 — fastening the lower end of the filter element on the nozzle and sealing the bottom

parts of the inner sleeve.

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The filter element 1 bag filter consists of an outer 2 and inner 3 sleeves connected

longitudinal lugs 4 forming impermeable areas, resulting in the formation of channels 5. The upper end of the filter element 1 is connected to the lid 7 by a collar 6, the lower part of the outer sleeve 2 of the filter element 1 is connected to the pipe 8 for entering the dusty gas; the inner sleeve through the clamp 10 is hermetically closed. In one or several impermeable portions of the longitudinal seam 4, a through longitudinal slot 11 is made separating adjacent channels 5. The seams 4 connecting sleeves 2 and 3 do not reach the upper and lower ends of the filter element and end in the filtration zone.

The operation of the filter bag filter element is in the follower.

Dust-laden gas through pipe 8 enters the space between sleeves 2 and 3, is distributed along the longitudinal channels 5 and passes through the filter fabric of the sleeves into the inner and outer zones of the filter element of the element. The purified gas enters the outer zone through the longitudinal slot 11. During the filtration process, the longitudinal channels take forms. cylinders interconnected

ShVs1MI 4.

During regeneration of the filter fabric, carried out by the reverse flow of gas, the channels are compressed and the dust trapped on the inner surface of the channels lags behind the fabric and is discharged through the nozzle 8.

The use of the proposed filter element allows for the revision of the inner zone of the filter element without removing it, which is especially important when trapping toxic dust.

Claims (1)

FILTER ELEMENT OF HOSE FILTER by ed. St. No. 698202, characterized in that, in order to audit the inner zone of the filter element, a through slot parallel to the axis of the filter element is made in one of the sections of the seam between the compartments. (2 Hs