RU2567327C2 - Filter - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to filtration. Filter comprises manifolds of pure and contaminated gas separated by plate with filtering elements. Filtering elements are secured in plate opening by resilient seal ring in width larger than plate depth and stitched in filtering element cap along with two 7-20 mm diameter rolls arranged at seal ring with 40-150 mm spacing between outer edges of the rolls equal to seal ring width. Compensating spacer is arranged between rolls from seal ring outer side facing the plate.

EFFECT: reliable securing of filtering element in the plate, accelerated assembly and disassembly.

5 cl, 5 dwg

Description

The invention relates to devices for mounting filter elements in filters for dust removal of gases in various industries - petrochemicals, metallurgy, building materials, etc.

Known filters with top mount filter elements. (Mazus M.G. et al. Filters for trapping industrial dusts. M., Mechanical Engineering, 1985, 249 pp. (P. 67. Fig. 4.11)). The disadvantage of this mounting of the filter element in the filter plate is the complexity of manufacturing the parts of the device and the complexity of the operations for installing and removing the sleeve.

Closest to the proposed filter according to the technical essence, the technical problem being solved and the totality of general technical features is a device for attaching filter elements SU 1398887, B01D 46/02, 05/30/08, adopted as a prototype. The disadvantage of this design is that it requires clamping rings of different diameters depending on the thickness of the filter material used. In addition, it is difficult to mount and dismantle the hoses.

The technical problem of the claimed invention and the technical result achieved by its solution are to increase the reliability of fastening the filter bags, accelerating their installation and dismantling.

The specified technical result is achieved in that the filter includes clean and dirty gas collectors separated by a plate with filter elements. Its difference lies in the fact that the filter elements are mounted in the holes of the plate due to the elastic sealing ring wider than the thickness of the plate, and the filter element sewn into the head together with two rollers with a diameter of 7-20 mm located on the sealing ring with a distance of 40-150 mm between the outer edges of the rollers, equal to the width of the o-ring, and a compensating gasket with a thickness of 0.5-3 mm is located between the rollers on the outside of the o-ring, while the o-ring covers the o-ring a slab over the entire surface facing the plate.

In addition, the difference lies in the fact that the holes of the plate in which the filter elements are mounted are arranged in rows, so that the four holes are located around one with a distance between them of 20-60 mm, and this distance is less than the distance between adjacent filter elements in four.

A fundamental point in the operation of filters is to ensure a tight installation of filter elements in the plate and the possibility of their rapid replacement. To do this, the filter elements 3 are mounted in the holes of the plate 2 due to the elastic sealing ring 8 wider than the thickness of the plate and sewn into the head 5, Fig. 2, the filter element 3 together with two rollers 9 with a diameter of 7-20 mm, located on the sealing ring with a distance 40-150 mm between the outer edges of the rollers equal to the width of the o-ring, and the compensating gasket 7 is located between the rollers on the outside of the o-ring, while the compensating gasket covers the o-ring over the entire surface, about to the stove. (Fig. 1) The thickness of the compensating gasket is 0.5-3 mm and is determined by the tolerance for the manufacture of holes in the plate, the tolerance in the manufacture of the sealing ring and the tolerance for the thickness of the filter element. The minimum (7 mm) and maximum (20 mm) diameter of the rollers 9 is due to the thickness of the applied filter materials. The distance between the outer edges of the rollers 9 is selected depending on the diameter of the rollers and the thickness of the plate. With a thin filter material and a thin plate, the distance between the outer edges of the rollers is 40 mm, and with large thicknesses of the filter material and a plate, the distance between the outer edges of the rollers will be 150 mm.

For the most dense and economical placement of the filter elements and reduce the size of the filter, the holes of the plate 2 in which the filter elements are mounted are arranged in rows so that four holes are located around one with a distance between them of 20-60 mm, while the distance "a" is less, than the distance "b" between adjacent filter elements in the four (Fig. 3, 4). Reducing the distance between the holes in the plate less than 20 mm is impractical, since this will happen to touch the sleeves during regeneration and their increased wear. Increasing the distance of more than 60 mm will lead to an unreasonable increase in the dimensions of the filter.

To ensure the efficiency of the regeneration of filter elements, holes with filter elements in a row are not regenerated simultaneously, but in rows of holes with minimum distances between filter elements located at an angle of 45 °.

The diameter of the hole in the plate where the filter elements are attached is 50-300 mm. When the diameter of the holes in the plate is less than 50 mm, the installation of filter elements in the plate is difficult due to the complexity of the deformation of the sealing ring of small diameter. When the diameter of the o-ring is more than 300 mm, the fixation of the o-ring in the plate is not sufficiently reliable due to the reduced elasticity of the o-ring.

In order to increase the filtration surface in the same volume of apparatus, the holes in which the filter elements are attached are oblong with rounded ends and flat sides.

These features are significant and interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

The possibility of carrying out the invention, characterized by the above set of features, as well as the possibility of realizing the purpose of the invention can be confirmed by the description of the possible design of the device made in accordance with the invention. The invention is illustrated by drawings.

In FIG. 1 shows a general view of the filter.

In FIG. 2 shows a device for attaching a filter sleeve head to an opening of a bag plate and attaching a filter sleeve to a head.

In FIG. 3 shows a plate with holes for attaching sleeves.

In FIG. 4 shows a plate with the placement of holes for the sleeves.

In FIG. 5 shows a plate with an arrangement of elongated sleeves with rounded ends and flat sides.

The list of items in FIG. 1-5:

1 - Clean gas collector;

2 - Plate;

3 - Filter elements;

4 - dirty gas collector;

5 - Headpiece;

6 - Holes in the plate;

7 - Compensating gasket;

8 - a sealing ring;

9 - Rollers;

10 - oblong filter elements;

11 - Rows of holes with filter elements regenerated simultaneously.

The proposed filter (Fig. 1) includes a clean gas collector 1, a plate 2 with filter elements 3 and a dirty gas collector 4. A device for attaching the filter sleeve head to the sleeve plate opening and attaching the filter sleeve to the head (Fig. 2) consists of a sealing ring 8, compensating gaskets 7, rollers 9. The head 5 enters the hole in the plate 6. The filter element 3 is attached to the head 5.

The plate 2 with the placement of the holes 6 for the sleeves is shown in FIG. 3, which also shows the rows of holes with filter elements regenerated simultaneously 11, and the rows of holes with minimum distances between filter elements located at an angle of 45 °.

On the plate 2 with the placement of holes for the sleeves (Fig. 4) shows the diameter of the holes for the sleeves - 50-300 mm and the distance "a" between the holes 20-60 mm, less than the distance "b".

In FIG. 5 shows a plate 2 with an arrangement of elongated sleeves 10 with rounded ends and flat sides.

The functioning of the proposed filter is as follows.

Dusty gas enters the dirty gas manifold 4 and passes through the filter elements 3, mounted in the stove 2. Next, the dust-free gas enters the clean gas collector 1.

Rows of holes with filter elements regenerated simultaneously, and rows of holes with minimum distances between filter elements, are located at an angle of 45 °. This allows you to provide the required regeneration efficiency with the most dense arrangement of filter elements (Fig. 3).

Different production conditions require filters of various capacities. Therefore, the diameter of the holes in the plate is 50-300 mm, which covers the required range of filter performance (Fig. 4), Fig. 5 allow the use of filter elements having a large filtration area.

The present invention is industrially applicable, since its manufacture does not require special equipment and new technologies.

The filter described in this example and shown in graphic materials with a sleeve attachment device is not the only possible design to achieve the above technical result and does not exclude other manufacturing options containing a combination of features included in an independent claim.

Claims (5)

1. A filter including clean and dirty gas collectors separated by a plate with filter elements, characterized in that the filter elements are mounted in the plate openings due to an elastic sealing ring wider than the plate thickness, and a filter element sewn into the head together with two rollers with a diameter of 7-20 mm located on the o-ring with a distance of 40-150 mm between the outer edges of the rollers equal to the width of the o-ring, and a compensating gasket is located between the rollers on the outside of the o-ring tsa across the surface facing the slab. 2. The filter according to claim 1, characterized in that the holes of the plate in which the filter elements are mounted are arranged in rows so that four holes are located around one with a distance between them of 20-60 mm, and this distance is less than the distance between adjacent filter elements in the four. 3. The filter according to claim 2, characterized in that the rows of holes with filter elements regenerated simultaneously, and the rows of holes with minimum distances between the filter elements are located at an angle of 45 °. 4. The filter according to claim 1, characterized in that the diameter of the hole in the plate where the filter elements are attached is 50-300 mm. 5. The filter according to claim 1, characterized in that the holes in which the filter elements are attached are oblong with rounded ends and flat sides.

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