CN213416464U

CN213416464U - Composite filtering membrane for sewage treatment

Info

Publication number: CN213416464U
Application number: CN202021930861.7U
Authority: CN
Inventors: 仝宝旺; 赵娟霞; 王明浩; 程蔚云
Original assignee: Tianjin Tianmei Environmental Protection Science & Technology Co ltd
Current assignee: Tianjin Tianmei Environmental Protection Science & Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-11
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a composite filtering membrane for sewage treatment, which belongs to the technical field of sewage treatment and comprises a drain pipe, wherein the inside of the drain pipe is provided with two mounting grooves and two mounting grooves, a mounting rack is inserted in the mounting groove, one side of the mounting rack is fixedly connected with a fixed grid net, a base membrane is arranged in the mounting rack, one side of the base membrane is laminated with a reinforced membrane A, the other side of the base membrane is laminated with a reinforced membrane B, the base membrane is a cellulose acetate membrane, the base membrane has good liquid permeation and excellent adsorption, the material of the reinforced membrane A is a polytetrafluoroethylene membrane, the primary filtration effect on sewage can be realized, the material of the reinforced membrane B is a polyacrylonitrile membrane, the sewage after the primary filtration can be deeply filtered, the composite structure of the base membrane, the reinforced membrane A and the reinforced membrane B can promote the filtration effect of the filtering membrane on the sewage, and the fixed grid net 3 can play a supporting and reinforcing, reduce the damage of water flow impact force and pressure to the membrane body and improve the whole service life.

Description

Composite filtering membrane for sewage treatment

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a sewage treatment is with compound filtration membrane.

Background

Sewage treatment is a process for purifying sewage to meet the requirement of discharging the sewage into a certain water body or reusing the sewage, is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection and the like, and adopts one of the common treatment modes in sewage treatment when a filtering membrane is adopted to treat and filter the sewage.

Patent number is CN 210764471U's publication a high-efficient filtration membrane is used in sewage treatment, moreover, the steam generator is simple in structure, convenient operation and excellent in use effect, the air is spout from the jet-propelled pipe, can push up the adhesion at the impurity on filtration membrane surface through the bubble, thereby can play the effect on clean filter screen surface, control servo motor through positive and negative rotation controller carries out just reversal, and carry out reciprocating type swing in the spout through scraping the mud arm and drive the mud scraper, can clear away the adhesion at the intractable impurity on filtration membrane surface, avoid the mesh to take place to block up, thereby with further promotion to the filtration efficiency of sewage.

The filtering membrane for sewage treatment has the following defects that 1, the filtering membrane for sewage treatment adopts a single membrane body structure to filter sewage, the single filtering membrane body causes poor filtering effect, and in the actual use process, the filtering membrane needs to bear larger water body impact force and pressure, so that the damage is easy to happen, and the normal use is influenced; 2. traditional filtration membrane only has single mounting structure in pipeline inside, when using for a long time and changing, must stop to the filtration of water just can carry out the change of membrane, influences sewage treatment efficiency, and adopts filtration structure to just filter before usually among the sewage treatment to the granule impurity etc. of filtering aquatic, the easy separator of traditional filtration structure long-term back of using blocks up, influences filtration rate, for this reason, we propose a compound filtration membrane for sewage treatment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sewage treatment is with compound filtration membrane aims at improving the filter effect and the impact resistance of membrane, need not to stop the sewage treatment operation simultaneously when changing the membrane body, and can reduce the condition that the filter screen was blockked up to the filter.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of compound filtration membrane for sewage treatment, the drain pipe comprises a drain pipe, the inside mounting groove and the mounting groove of having seted up of drain pipe is two, the inside grafting of mounting groove has the mounting bracket, the fixed graticule mesh of mounting bracket one side fixedly connected with, mounting bracket internally mounted has the base member membrane, the laminating of base member membrane one side has enhancement film A, the laminating of base member membrane opposite side has enhancement film B, enhancement film B surface is hugged closely to fixed graticule mesh, the inside one end fixedly connected with filter plate net of drain pipe, the drain pipe bottom has been close to filter plate net one side and has been seted up the discharge hole, drain pipe bottom fixedly connected.

Optionally, the substrate membrane is a cellulose acetate membrane.

Optionally, the material of the reinforced membrane A is a polytetrafluoroethylene membrane, and the material of the reinforced membrane B is a polyacrylonitrile membrane.

Optionally, a valve is mounted at the bottom of the collecting pipe and is located at the discharge end of the collecting pipe.

The utility model has the advantages as follows:

1. the filtering membrane arranged in the mounting rack is formed by compounding a base membrane, a reinforcing membrane A and a reinforcing membrane B, the base membrane is a cellulose acetate membrane, acetic acid is used as a solvent, acetic anhydride is used as an acetylating agent, esterification is carried out under the action of a catalyst, the obtained thermoplastic resin membrane has good liquid permeation and excellent adsorbability, the reinforcing membrane A is a polytetrafluoroethylene membrane, a bar and a belt which are formed by extruding polytetrafluoroethylene are rolled into a semi-finished product of the membrane, the semi-finished product is stretched and heat-set at the temperature below the melting point, the obtained porous product can play a primary filtering role on sewage, the reinforcing membrane B is a polyacrylonitrile membrane, the porous product is obtained by carrying out free radical polymerization reaction on monomer acrylonitrile, the sewage after primary filtering can be subjected to deep filtering, and the filtering effect of the filtering membrane on the sewage is improved by adopting a composite structure of the base membrane, the reinforcing membrane A and the reinforcing membrane B, fixed graticule mesh and fixed graticule mesh are fixed between the mounting bracket and are hugged closely reinforced film B surface, can play the support reinforcement effect to the diaphragm body between the mounting bracket, reduce the damage of rivers impact force and pressure to the diaphragm body, improve whole life.

2. Inside being fixed with of drain pipe has two mounting grooves can be used for installing the mounting bracket, filtration membrane integral erection is inside the mounting bracket, adopt two group membranes to replace traditional single membrane structure, when needing to carry out the washing of membrane and changing, can go on in batches, wash and change the in-process, it filters to keep a set of filtration membrane all the time, need not shut down, avoid influencing the processing filtration efficiency, the inside fixed filter plate net of drain pipe is used for carrying out the prefilter to sewage, the impurity and the particulate matter etc. of filtering can fall and pass inside the discharge hole discharges to the collecting pipe, avoid impurity to gather the passing through rate that influences the filter plate net, and impurity falls into inside the collecting pipe, can be more convenient clean the discharge.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a composite filtering membrane for sewage treatment according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a mounting rack of a composite filtering membrane for sewage treatment according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a mounting rack of a composite filtering membrane for sewage treatment according to an embodiment of the present invention.

In the figure: 1. a drain pipe; 2. mounting grooves; 201. a mounting frame; 3. fixing the grid; 4. a substrate film; 5. a reinforcing film A; 6. a reinforcing film B; 7. a filter screen; 8. a discharge hole; 9. a collection pipe; 901. and (4) a valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A composite filtration membrane for sewage treatment according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, fig. 2 and fig. 3, the embodiment of the utility model provides a pair of compound filtration membrane for sewage treatment, including drain pipe 1, drain pipe 1 is inside to have seted up mounting groove 2 and mounting groove 2 is two, 2 inside pegs graft of mounting groove has mounting bracket 201, the fixed graticule mesh of mounting bracket 201 one side fixedly connected with 3, mounting bracket 201 internally mounted has

base member membrane

4, 4 one side laminating of base member membrane have enhancement film A5, 4 opposite side laminating of base member membrane have enhancement film B6, enhancement film B6 surface is hugged closely to fixed graticule mesh 3, the inside one end fixedly connected with filter plate net 7 of drain pipe 1, drain pipe 1 bottom is close to filter plate net 7 one side and has seted up discharge hole 8, drain pipe 1 bottom fixedly connected with collecting pipe 9.

In an example, the substrate membrane 4 is a cellulose acetate membrane with good liquid permeability and excellent adsorbability, the reinforced membrane A5 is a polytetrafluoroethylene membrane, can play the effect of just straining to sewage, the reinforced membrane B6 material is the polyacrylonitrile membrane, can carry out depth filtration to the sewage after just straining, adopt base member membrane 4, reinforced membrane A5 and reinforced membrane B6's composite construction, promote the filter effect of filtration membrane to sewage, fixed graticule mesh 3 can play the support reinforcing effect to the diaphragm body between the mounting bracket 201, reduce the damage of rivers impact force and pressure to the diaphragm body, improve whole life, filter plate net 7 is used for carrying out the prefilter to sewage, the impurity of filtering and particulate matter etc. can fall down and pass discharge hole 8 and discharge to inside collecting pipe 9, avoid impurity to gather the rate of passing through that influences filter plate net 7, and impurity falls into inside collecting pipe 9, can be more convenient clean the discharge.

Referring to fig. 1, a valve 901 is mounted at the bottom of the collecting pipe 9, and the valve 901 is positioned at the discharge end of the collecting pipe 9.

For example, the valve 901 mounted at the bottom of the collecting pipe 9 can control the opening and closing of the discharge end of the collecting pipe 9, and when impurities need to be cleaned, the valve 901 can be opened to discharge the impurities in the collecting pipe 9.

When in use, the filtering membrane arranged in the mounting rack 201 is composed of a base membrane 4, a reinforcing membrane A5 and a reinforcing membrane B6 in a composite mode, the base membrane 4 is made of a cellulose acetate membrane, acetic acid is used as a solvent, acetic anhydride is used as an acetylating agent, esterification is carried out under the action of a catalyst, the obtained thermoplastic resin membrane has good liquid permeation and excellent adsorbability, the reinforcing membrane A5 is made of a polytetrafluoroethylene membrane, the reinforcing membrane B6 is made of a polyacrylonitrile membrane, monomer acrylonitrile is obtained through free radical polymerization, the primarily filtered sewage can be subjected to deep filtration, the composite structure of the base membrane 4, the reinforcing membrane A5 and the reinforcing membrane B6 is adopted, the filtering effect of the filtering membrane on the sewage is improved, the fixed grid 3 is fixed between the mounting frames 201, the fixed grid 3 is tightly attached to the surface of the reinforcing film B6, the supporting and reinforcing effects on the film body between the mounting frames 201 can be achieved, the damage of water flow impact force and pressure on the film body is reduced, the whole service life is prolonged, two mounting grooves 2 are fixed inside the drain pipe 1 and can be used for mounting the mounting frames 201, the filtering films are integrally mounted inside the mounting frames 201, a double-group film is adopted to replace a traditional single film structure, the cleaning and the replacement of the films can be carried out in batches when the films need to be cleaned and replaced, a group of filtering films are always kept for filtering in the cleaning and replacement process without stopping the machine, the filtering efficiency is prevented from being influenced, the filtering plate net 7 fixed inside the drain pipe 1 is used for primarily filtering sewage, filtered impurities, particles and the like can fall down and pass through the drain hole 8 to be discharged into the collecting pipe 9, and, and impurity falls into inside collecting pipe 9, can be more convenient clean the discharge, the valve 901 through the installation of collecting pipe 9 bottom can control the opening of collecting pipe 9 discharge end closed, opens valve 901 and can discharge the inside impurity of collecting pipe 9 when needing to clear up impurity.

It should be noted that, the utility model relates to a sewage treatment is with compound filtration membrane, including drain pipe 1, mounting groove 2, mounting bracket 201, fixed graticule mesh 3, base member membrane 4, reinforced membrane A5, reinforced membrane B6, filter plate net 7, discharge hole 8, collecting pipe 9, valve 901, the part is general standard component or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A composite filtering membrane for sewage treatment comprises a drain pipe (1) and is characterized in that, the inside of the drain pipe (1) is provided with two mounting grooves (2), the mounting rack (201) is inserted in the mounting groove (2), one side of the mounting rack (201) is fixedly connected with a fixed grid (3), a base film (4) is arranged in the mounting rack (201), a reinforcing film A (5) is attached to one side of the base film (4), a reinforcing film B (6) is attached to the other side of the substrate film (4), the fixed grid (3) is tightly attached to the surface of the reinforcing film B (6), one end of the interior of the drain pipe (1) is fixedly connected with a filter screen (7), the drainage pipe is characterized in that a drainage hole (8) is formed in one side, close to the filter plate net (7), of the bottom of the drainage pipe (1), and a collecting pipe (9) is fixedly connected to the bottom of the drainage pipe (1).

2. The composite filtering membrane for sewage treatment as claimed in claim 1, wherein the substrate membrane (4) is cellulose acetate membrane.

3. The composite filtering membrane for sewage treatment according to claim 1, wherein the reinforced membrane A (5) is a polytetrafluoroethylene membrane, and the reinforced membrane B (6) is a polyacrylonitrile membrane.

4. A composite filtering membrane for sewage treatment according to claim 1, characterized in that a valve (901) is installed at the bottom of the collecting pipe (9), and the valve (901) is positioned at the discharge end of the collecting pipe (9).