CS240073B1 - Multi-chamber pocket filter - Google Patents

Abstract

The multi-chamber pocket filter is designed for capturing solid air impurities in deep mines. A reinforcing frame is fitted to the flange of each filter chamber with a continuous seal, into which a filter fabric shaped into a system of pockets is inserted. The edges of the filter fabric are clamped around the entire circumference between the reinforcing frame and the support frame, equipped with screws for tensioning the filter fabric through an internal reinforcing frame inserted individually into each pocket of the filter fabric. Each filter chamber is separately hermetically sealed with a lid.

Description

BACKGROUND OF THE INVENTION The present invention relates to a multi-chamber pocket filter intended to contain solids of air in deep mines.

For filters designed to contain solids of air in deep mines, the main requirement is the minimum dimension at maximum filter performance, due to confined spaces. Therefore, pocket filters of various concepts, preferably multi-chamber filters, are used, but their common feature still remains a relatively large volume and difficult assembly and disassembly during repairs and / or revisions or cleaning of the filter chambers.

The above-mentioned drawbacks are largely eliminated by the multi-chamber pocket filter according to the invention, characterized in that the flange of each filter chamber is fitted with a reinforcing frame into the continuous seal into which a filter fabric is inserted into the pocket system. An internal reinforcing carcass is inserted by means of self-pressurized bolts mounted in a support frame, which is also used to hold the okra's filter fabric around the perimeter. Each filter chamber is individually sealed by a lid.

The advantage of the proposed solution is that it further enables to minimize the filter dimensions and facilitates the assembly and disassembly of individual filter chambers. At the same time it ensures the discharge of the electrostatic charge from the filter fabric to the filter housing.

1 and FIG. 2 show a cross-section in FIG. 1 and a horizontal cross-section in FIG. 2 of a multi-chamber pocket filter.

Example

The filter is divided into several separate filter chambers 1, whose open mounting flange is provided with a flange 3 with a continuous seal 4, on which a reinforcing frame 5 is inserted, into which it is inserted

2 240 073 filter fabric 8 shaped, for example by stitching, into a pocket system. The edges of the filter fabric 8 are clamped around the periphery between the reinforcement frame 5 and the support frame 7, whereby the filter fabric 8 is fixed in the working position.

In each pocket of the filter fabric 8 is inserted an internal reinforcing frame, provided with spacer springs 11, which for the proper tensioning of the filter fabric 8 is pressed by screws 9 secured by locking nuts 10 in the support frame 7. The open mounting flank of each filter chamber 1 is individually airtightly closed the lid 2, the inner space of which is used to guide both cleaned and flushed air. The reinforcing frame 5 carries within the filter chamber 1 by means of spacer springs 11 and at the lower part by means of dedusting holes provided with reinforcing ribs between which they are uniform. The inner pockets of the filter fabric 8 are stretched by means of the inner reinforcing frame 6.

Claims (1)

SUBJECT OF THE INVENTION A multi-chamber pocket filter intended for collecting solid admixtures in underground mines, characterized in that a reinforcing frame (5) in which it is inserted is inserted into the system on the flange (3) of each filter chamber (1). pockets shaped, filter fabric (8), in each pocket of which is inserted an internal reinforcing skeleton (6) separately pressed by screws (9) fixed in the supporting frame (7), by which the edges of the filter fabric (8) ), each filter chamber (1) being individually airtightly closed by a lid (2).