CN106731223A

CN106731223A - Self-cleaning metal sinters screen pack

Info

Publication number: CN106731223A
Application number: CN201510851506.8A
Authority: CN
Inventors: 沈智奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2017-05-31

Abstract

Alternately filtering self-cleaning metal sinters screen pack to one kind, belongs to metal sintering screen pack processing technique field.The purpose of the present invention is that alternately filtering, automatic backflushing, production efficiency novel filter net high can be reached in sewage disposal.Stratum reticulare is designed as multilayer difference mesh net and support orifice plate stacks be made through techniques such as oversintering, pressurization, rollings together respectively, and as will be shown later, direction is reversely successively superimposed laminated construction from positive yearning, is respectively：Positive catch net (1), forward filter net (2), positive separate mesh (3), positive reinforcing mat (4), support orifice plate (5), reverse reinforcing mat (6), reverse separate mesh (7), reverse filtration net (8), reverse protection net (8), so as to constitute alternately filtering self-cleaning metal sintering screen pack.

Description

Self-cleaning metal sinters screen pack

Technical field

The present invention relates to a kind of design and manufacturing technology of metal sintering screen pack, belong to metal sintering screen pack and add Work technical field.

Background technology

Metal sintering screen pack on the market is essentially all only unidirectional filtering function at present, and its design is general It is five-layer structure, is divided into protective layer, filter layer, separating layer, enhancement layer, supporting layer, five parts.Filtering During device operation, sewage is blocked into filter layer, filter residue from protective layer in filter layer, drainage from point Absciss layer flow to enhancement layer again through supporting layer outflow filter net outside.This structure design can only be filtered unidirectionally, served as When the filter residue of filtering layer is stacked into certain thickness, sewage water filtration efficiency can be had a strong impact on, it is at this moment another by starting Outer setting relative complex recoiling device filter screen is backwashed, until the filter residue piled up on screen pack Raw sewage filtration can just be continued after rinsing, due to there was only unidirectional filtering function, so greatly limit Production efficiency and the investment cost and operating cost that increased backpurge system device.

The content of the invention

Present disclosure is：Metal sintering screen pack at present on the market is solved because of only unidirectional filtering function The low production efficiency of filter, the problem that recoiling device investment cost is big, operating cost is high are caused, is invented Positive and negative can alternately filter when going out sewage disposal, automatic backwash, production efficiency self-cleaning metal sintering high Screen pack.

The technical scheme is that：Stratum reticulare is designed as multilayer difference mesh net and support orifice plate is overlayed respectively It is made through techniques such as oversintering, pressurization, rollings together, as will be shown later, direction is from forward direction for laminated construction Toward reversely successively superposition, the 1st layer：Positive catch net, the 2nd layer：Forward filter net, the 3rd layer：It is positive Separate mesh, the 4th layer：Positive reinforcing mat, the 5th layer：Support orifice plate, the 6th layer：Reverse reinforcing mat, the 7th Layer：Reverse separate mesh, the 8th layer：Reverse filtration net, the 9th layer：Reverse protection net.During operation：Work as dirt When water is from forward direction to reverse filtration, sewage flows through forward filter net from positive catch net, and at this moment filter residue is positive Screen pack is intercepted, drainage from the outflow of forward filter net by positive separate mesh, positive reinforcing mat, support orifice plate, Reverse reinforcing mat, reverse separate mesh, enter back into reverse filtration net and rinse the filter residue for being deposited in its surface, then Through the outflow of reverse protection net, reversely net is outer.After the filter residue that forward filter net is intercepted is stacked into certain thickness, its During the filter residue influence filter efficiency of surface, filter starts reverse filtration valve gear carries out alternately inverted filtering, At this moment sewage flows through reverse filtration net from reverse protection net, at this moment filter residue be reversed screen pack interception, drainage from The outflow of reverse filtration net is by reverse separate mesh, reverse reinforcing mat, support orifice plate, positive reinforcing mat, forward direction Separate mesh, enter back into forward filter net rinse pile up filter residue in its surface and after be discharged to through positive catch net Forward direction net is outer, to this completion forward and reverse alternately filtering and the self-cleaning cyclic process of filter screen.

Brief description of the drawings

The invention will be further described with reference to the accompanying drawings and examples：

Accompanying drawing is multilayer difference mesh net of the present invention and support orifice plate overlaying structure cross section schematic diagram：

In figure：1st, positive catch net, 2, forward filter net, 3, positive separate mesh, 4, positive reinforcing mat,

5th, orifice plate is supported, 6, reverse reinforcing mat, 7, reverse separate mesh, 8, reverse filtration net, 9, reversely Catch net.

Specific embodiment

Self-cleaning metal of the present invention sintering screen pack by multilayer difference mesh net and the superposition of support orifice plate through oversintering, The techniques such as pressurization, rolling are made, and Multilayer Network superimposed layer structural order is as will be shown later：Positive catch net (1) Forward filter net (2) is followed by, forward filter net (2) is followed by positive separate mesh (3), positive separate mesh (3) positive reinforcing mat (4) is followed by, positive reinforcing mat (4) is followed by support orifice plate (5), supported hole Plate (5) is followed by reverse reinforcing mat (6), and reverse reinforcing mat (6) is followed by reverse separate mesh (7), instead Reverse filtration net (8) is followed by separate mesh (7), reverse filtration net (8) is followed by reverse protection net (9).

During operation：When sewage is from forward direction to reverse filtration, sewage flows to positive from positive catch net (1) Screen pack (2), at this moment by forward filter net (2) interception, drainage flows out filter residue from forward filter net (2) By positive separate mesh (3), positive reinforcing mat (4), support orifice plate (5), reverse reinforcing mat (6), anti- To separate mesh (7) enter back into reverse filtration net (8) rinse be deposited in the filter residue on its surface and after through reversely guarantor Reversely net is outer for protecting wire net (9) outflow, the meeting after filter residue that forward filter net (1) is intercepted is stacked into certain thickness During influence filter efficiency, filter starts reverse filtration valve gear carries out alternately inverted filtering, at this moment sewage Reverse filtration net (8) is flowed through from reverse protection net (9), at this moment filter residue is reversed screen pack (8) interception, Drainage is flowed out by reverse separate mesh (7), reverse reinforcing mat (6), support orifice plate from reverse filtration net (8) (5), positive reinforcing mat (4), positive separate mesh (3) enter back into forward filter net (2) flushing and are deposited in Filter residue on its surface, and after through positive catch net (1) to be discharged to positive net outer, it is positive and negative to this completion Alternately filtering and the self-cleaning cyclic process of filter screen.

Claims

1. a kind of alternately filtering self-cleaning metal sintering screen pack, is distinguished by multilayer difference mesh net and support orifice plate It is stacked together, is made through techniques such as oversintering, pressurization, rollings, it is characterized in that：It is self-cleaning to replace Filter sintered metal mesh is by multilayer difference mesh net and support orifice plate superposition through techniques such as oversintering, pressurization, rollings It is made, Multilayer Network superimposed layer structural order is as will be shown later：Positive catch net (1) is followed by forward filter Net (2), forward filter net (2) is followed by positive separate mesh (3), and positive separate mesh (3) is followed by just To reinforcing mat (4), positive reinforcing mat (4) is followed by support orifice plate (5), and support orifice plate (5) is followed by Reverse reinforcing mat (6), reverse reinforcing mat (6) is followed by reverse separate mesh (7), reverse separate mesh (7) Reverse filtration net (8) is followed by, reverse filtration net (8) is followed by reverse protection net (9).

2. self-cleaning metal according to claim 1 sinters screen pack, it is characterized in that：By multilayer difference net Hole pattern and support orifice plate superposition are made through techniques such as oversintering, pressurization, rollings.