RU2527982C1 - Slotted plate filter (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: filter contains a case with input and output branch pipes, a filtering element, assembled from plates. An assembly composition includes plates, on both surfaces of which made are oriented parallel projections, located opposite the projections of the other plate. In accordance with the first version of implementation the plates in the assembly are made rectangular and are located parallel to each other. The assembly composition also includes the plates with smooth planes, alternating with the plates with projections. The projections on the plates are made equal in size, are placed at an acute angle to their central longitudinal axes and are located in a mirror-like way on both planes of the plates. In accordance with the second version of implementation the plates in the assembly are made rectangular and are located at an angle to each other with formation of a volume with a curved slot surface, connected with the input branch pipe. The composition of the assembly also includes the plates with smooth planes, alternating with the plates with projections. The projections on the plates are made equal in size, are located at an acute angle to their central longitudinal axes and are located in a mirror-like way on both planes of the plates. The plates with smooth surfaces form with lateral surfaces of the projections slotted filtering inputs for the passage of a medium to be filtered from the volume with the curved slot surface, which can be made open or closed.

EFFECT: high degree of reliability.

4 cl, 7 dwg

Description

The invention relates to the field of microfiltration, and in particular to filters for the mechanical purification of water and gas from contaminants with a particle size of up to 100 microns and can be used in various industries.

Known slot filter containing a housing and a filter element located in the housing, made in the form of a package of metal disks placed on a central rod, while the disks of the filter element are made with a porous coating with a depth equal to the filter gap (USSR author's certificate No. 1171059, class B01D 25 / 16, publ. 07.08.85 g.).

The disadvantages of the known slotted filter are low productivity and low reliability, as well as low quality cleaning mixture in conditions of large pressure drops.

A device for cleaning the liquid containing filter plates with holes made in the form of comb sections that enter one into another, one of which is movable and connected to a reciprocating drive (USSR author's certificate No. 339299, class B01D 25/12, publ. 1972).

The disadvantages of the known device is the low efficiency of its filtering surface.

The closest to the claimed technical essence and the achieved result is a slotted filter containing a housing with inlet and outlet nozzles, and a filter element located in the housing, recruited from the plates, while the set includes plates, on both planes of each of which oriented parallel protrusions in the form of scratches or coatings of a cross direction relative to opposite contact surfaces with the formation of passage channels, each channel communicating with several nalami, interfering with them (RF patent №2022615, cells B01D 29/44, published on 15.11.1994, the -.. a prototype).

The main disadvantages of the slit filter described in the prototype are:

- a high degree of probability of a violation of the bandwidth of channels formed by risks or coverage of the cross direction;

the configuration of the formed channels does not guarantee the required filtrate quality.

Thus, the design of the prototype does not have a high degree of reliability during its installation and operation.

An object of the invention is the creation of a new slotted plate filter having a higher degree of reliability.

The technical problem is solved when creating the design of a slotted plate filter containing a housing with inlet and outlet nozzles, a filter element located in the housing, assembled from the plates, while the set includes plates, on both planes of each of which are oriented parallel protrusions located opposite the protrusions another plate in which according to the invention:

- according to the first embodiment, the plates in the set are made rectangular and arranged parallel to each other, moreover, the set also includes plates with smooth planes alternating alternately with plates with protrusions, while the protrusions on the plates are made equal, placed at an acute angle to their central longitudinal axes and are mirrored on both planes of each plate, and plates with smooth planes form filter channels with lateral surfaces of the protrusions;

- according to the second embodiment, the plates in the set are made rectangular and are located at an angle to each other, forming a volume with a curved slotted surface connected to the inlet of the housing, and the set also includes plates with smooth planes, alternating alternately with the plates with protrusions, when the protrusions on the plates are placed at an acute angle to their central longitudinal axes and are mirrored on both planes of each plate, and the plates with smooth planes form with side surfaces tyami protrusions slotted filter inputs intended for the passage of the filtered medium from the scope of the curved surface of the slit, which may be made open or closed.

In this design of a slotted plate filter, the implementation of slotted filter channels and slotted filter inlets for a filtered medium formed by plates with smooth planes located between plates with protrusions made equal, placed at an acute angle to their central longitudinal axes and mirrored on both their planes, and the lateral surfaces of these protrusions makes it impossible to squeeze the protrusions of the plates with smooth planes and, thus, a violation of the throughput filter channels. In addition, a guaranteed quality of filtration is achieved due to the formation of channels with a given flow area. Therefore, the filter of the proposed design has a high degree of reliability during its installation and operation.

A comparative analysis of the inventive slotted plate filter and prototype reveals the distinctive features of the claimed device in comparison with the closest analogue, which allows us to conclude that the claimed device meets the criteria of the invention of "novelty". The presence of distinctive features makes it possible to obtain a positive effect, which consists in creating a new design of a slotted plate filter with higher reliability.

Since when examining the object of the invention in patent and scientific literature, no solutions were found containing the features of the claimed invention other than the prototype, it should be concluded that the claimed invention meets the criterion of "significant differences".

The use of the claimed invention in the field of filtration used in various industries ensures it meets the criterion of "industrial applicability".

The proposed slotted plate filter is shown in the drawing, which shows: figure 1 is a General view of a slotted plate filter (1 embodiment),

figure 2 is a section along A-A (1 embodiment), figure 3 - local "B" General view (1 embodiment); figure 4 is a General view of the slotted plate filter with an open curved slotted surface (2 embodiment), Figure 5 is a local view "C" of a General view of the slotted plate filter with an open curved slotted surface (2 embodiment); Fig.6 is a General view of the slotted plate filter with a closed curved slotted surface (2 embodiment), Fig.7 is a top view of the slotted plate filter with a closed curved slotted surface (2 embodiment).

The slotted plate filter comprises a housing 1 with an inlet 2 and an outlet 3 nozzles and a filter element located in the housing, assembled from the plates, while the set includes plates 4, on both planes of each of which are oriented parallel protrusions 5 located opposite the protrusions of the other plate , moreover:

- according to the first embodiment, the plates in the set are rectangular and arranged parallel to each other, while the set also includes plates 6 with smooth planes alternating alternately with plates 4 with protrusions 5, and the protrusions 5 on the plates 4 are made equal, placed under a sharp angle to their central longitudinal axes and are mirrored on both planes of each plate 4, and plates 6 with smooth planes form filter channels 7 with the side surfaces of the protrusions 5;

- according to the second embodiment, the plates in the set are made rectangular and are located at an angle to each other, forming a volume with a curved slotted surface 8 connected to the inlet pipe 2 of the housing 1, and the set also includes plates 6 with smooth planes, alternating alternately with the plates 4 with protrusions 5, the protrusions 5 on the plates 4 are made equal, placed at an acute angle to their central longitudinal axes and are mirrored on both planes of each plate 4, and the plate 6 with smooth planes the awns form slotted filtering inlets 9 with the lateral surfaces of the protrusions 5, intended for the passage of the filtered medium from the volume with a curved slotted surface 8, which can be open or closed.

The plates included in the kit are made of stainless steel, and the protrusions on them are made by cold rolling on steel rolls on which grooves are applied by turning with diamond or carbide cutters.

Slotted plate filter operates as follows.

According to the first embodiment, the filtered medium is fed through the inlet pipe 2 of the housing 1 to a set of plates 4, 6 located parallel to each other, then passes through the filter channels 7 formed by plates 6 with smooth planes and side surfaces of equal-sized protrusions 5 made at an acute angle to the central longitudinal axes of the plates 4 and mirrored on both planes of each of them. The resulting filtrate then goes to the outlet pipe 3 of the filter housing 1.

According to the second embodiment, the filtered medium is fed through the inlet pipe 2 of the housing 1 into a volume with a curved slotted surface 8, formed by a set of plates 4, 6 located at an angle to each other, then passes through the slotted filter inlets 9 formed by the plates 6 with smooth planes and the lateral surfaces of equal-sized protrusions 5, made at an acute angle to the central longitudinal axes of the plates 4 and mirrored on both planes of each of them. Subsequently, the obtained filtrate enters the outlet pipe 3 of the filter housing 1.

The curved slotted surface 8 of the volume formed by the plates 4 and 6 can be made open or closed.

In the claimed embodiments of the slotted plate filter, the implementation of slotted filter channels or slotted filter inlets for the filtered medium (liquid or gaseous) formed by plates with smooth planes and lateral surfaces of protrusions made equal, formed at an acute angle to the central longitudinal axes of each of the plates and mirror located on both of their planes, provides increased reliability of the proposed design compared to the prototype.

Claims (4)

1. A slotted plate filter containing a housing with inlet and outlet nozzles and a filter element located in the housing, assembled from the plates, the kit includes plates, on both planes of each of which are oriented parallel protrusions located opposite the protrusions of the other plate, characterized the fact that the plates in the set are made rectangular and are parallel to each other, and the set also includes plates with smooth planes, alternating alternately with plates with high upami, wherein the protrusions formed on the plates of equal size, arranged at an acute angle to their central longitudinal axes and are arranged specularly on both surfaces of each plate, the plates with smooth planes form a filter channels with side surfaces of the projections. 2. A slotted plate filter containing a housing with inlet and outlet nozzles and a filter element located in the housing, assembled from the plates, the kit includes plates, on both planes of each of which oriented parallel protrusions are made, characterized in that the plates in the set made rectangular and arranged at an angle to each other, forming a volume with a curved slotted surface, connected to the inlet of the housing, and the set also includes plates with smooth planes, alternately alternating with plates with protrusions, while the protrusions on the plates are made equal, placed at an acute angle to their central longitudinal axes and are mirrored on both planes of each plate, and the plates with smooth planes form slotted filter entrances with side surfaces of the protrusions for passage filtered medium from a volume with a curved slotted surface. 3. The slotted plate filter according to claim 2, characterized in that the curved slotted surface of the volume formed by the plates located at an angle to each other is open. 4. The slotted plate filter according to claim 2, characterized in that the curved slotted surface of the volume formed by the plates located at an angle to each other is closed.

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