CN209790995U - High-efficiency filter for industrial sewage or domestic sewage purification device - Google Patents

Abstract

a high-efficiency filter for an industrial sewage or domestic sewage purification device comprises a bracket, an anti-sticking filter screen and a fixing ring, wherein the bracket is of a rectangular prism structure, a divergent cylinder structure or a gear cylinder structure; the anti-sticking filter screen is fixed on the bracket and is arranged into a filter structure according to the shape of the bracket; the fixed ring is fixedly connected with the lower end or the upper end of the bracket and forms a filtering outlet. The utility model has the advantages of high filtration precision and high filtration efficiency, being not easy to block, needing no back washing and the like.

Description

High-efficiency filter for industrial sewage or domestic sewage purification device

Technical Field

The utility model relates to a sewage treatment equipment, concretely relates to high efficiency filter for industrial sewage or domestic sewage purifier.

Background

In industrial sewage and domestic sewage, there are a large amount of Suspended Solids (SS), and these suspended solids are insoluble in water, mainly by inorganic matter, organic matter and silt, clay, microorganism constitute, and a large amount of suspended solids are gathered and are caused the turbid leading cause of water and quality of water foul, so in sewage treatment equipment, generally all use sewage filter, reduce the suspended solids volume of sewage through the solid particle mode of holding back in the sewage, reach the purpose of preliminary purification quality of water.

The sewage filter mainly comprises deep filtration and surface filtration in the filtration principle. The deep filtration mainly adopts the method that the sewage is forced to pass through a porous filter medium, and suspended solid particles in the sewage are intercepted, so that the separation of a mixture is realized; the device is mainly used for the purification treatment link of the final link of sewage treatment, and is generally rarely used in the aspect of large-scale sewage treatment because of the defects of low filtration efficiency, easy loss and blockage of filter materials, large water consumption for backwashing, low filtration speed and the like. The surface filtration mainly adopts net filtration and membrane filtration; wherein, the filter adopts the net filtration, for example, the Chinese patent application with the application number of 201620281580.0 provides an anti-deposition sewage filter device, which comprises a deposition pool, a water inlet, a lifting bracket, a lifting roller, a water outlet, a water gate, a push-pull handle, an air jet pipe, an air jet head, an air pipe interface, an inclined filter screen, a filter hole, a collecting pool and the like, and the filter is carried out by utilizing the inclined flat filter screen; chinese patent application No. 201610084019.8 provides a sewage filtering device, which comprises a cavity, wherein multiple filtering layers are arranged in the cavity, and filtering is performed by using a flat-plate-type or U-shaped filtering net; the Chinese patent application with the application number of 201510592249.0 provides a sewage filtering device, which comprises a hydraulic rotary filter cylinder system, a back washing device, a supporting device and a hydraulic speed regulating device, wherein the hydraulic rotary filter cylinder is a conical filter screen; these devices use mesh filtration and have the following problems: firstly, most of the filter screens adopt straight plate type or cylinder type filter screens, the filter area is not large, the filter capacity in unit time is low, and the treatment efficiency is not high; secondly, in order to improve the filtering efficiency, part of schemes reduce the filtering precision of the filter screen, so that the separation effect is poor, and the filtered sewage contains high impurities and cannot be treated thoroughly; thirdly, the filter screen is arranged in a fold form to increase the filtering area, but the filtered sludge and impurities are deposited and blocked at the fold, so that the filter screen needs to be disassembled and cleaned at high frequency, and the practicability is low; fourthly, most of the filter screens are made of common materials, and the filtered sludge and impurities are accumulated and adhered at the filter screens, so that the filtering efficiency is influenced; fifthly, the adhered sludge and impurities are decomposed into particles under the condition of multiple times of filtered water flushing and pass through a filter screen, and the particles need to be cleaned frequently; sixthly, partial materials and filter screen materials have affinity and solubility, so that the filter screen is not cleaned completely, and secondary use is also influenced. The membrane filtration technology, such as the biomembrane process sewage treatment technology (MBR membrane), is also adopted, so that the filtration precision is higher, the problems of low filtration efficiency, long filtration period, high-frequency disassembly and cleaning and the like are caused, and the membrane filtration cannot adapt to the large-scale sewage filtration requirement.

With the development of filtration technology and new materials, the application of some new filtration structures and new nano materials/anti-sticking materials has been greatly developed in the aspects of air filters and the like at present, for example, Chinese patent application with application number 201711413241.9 discloses a high-efficiency filter sheet for an air microfiltration membrane filter, which mainly adopts a polytetrafluoroethylene fiber layer and a polyvinyl chloride fiber layer to realize the filtration of air; the filtering efficiency and the filtering effect are improved. The Chinese patent application with the application number of 201510111643.8 discloses a preparation method of a composite air filtering membrane, wherein a filtering layer of a high molecular polymer nanofiber membrane material and an air-permeable supporting material are loaded on a non-woven fabric material by an ultrasonic compounding method, and the filtering layer and the air-permeable supporting material are pleated to prepare the high-efficiency composite air filtering membrane, so that the filtering efficiency and the filtering effect can be improved. First, air filtration mainly adopts filter paper type and membrane type filtration, the density and water difference of air are large, the impact force is different, so that the air filtration can not be directly applied to sewage filtration; secondly, the amount of pollutants in the air is small, the amount of PM2.5 particles serving as a heavy pollution index is only 150 mug/m through thin film chromatography, and the heavy film chromatography can be carried out by adopting pleated filtration and is not easy to block; however, the pollutant particles in the sewage are large, the pollutant amount is large, if the fold type filtration is adopted, the blockage is easy, meanwhile, the cleaning is not convenient, the high-frequency replacement is needed, and the practicability is greatly reduced; third, the air filter primarily filters micro particulate matter in the air, such as PM2.5, PM 10; the filtering pollutants in the water mainly comprise impurities, flocculated sludge and other components, and are greatly different, so that the material and the structure of the filter screen are greatly different, and the technology cannot be directly transplanted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned background not enough, provide a high efficiency filter that is used for industrial sewage or domestic sewage purifier that filter fineness is high and filtration efficiency is high, be difficult to block up, need not the back flush.

The utility model provides a technical scheme that its technical problem adopted is: a high-efficiency filter for an industrial sewage or domestic sewage purification device comprises a bracket, an anti-sticking filter screen and a fixing ring, wherein the bracket is of a rectangular prism structure, a divergent cylinder structure, a gear cylinder structure and the like; the anti-sticking filter screen is fixed on the bracket and is arranged into a filter structure according to the shape of the bracket, so that the filter area is increased; the fixed ring is fixedly connected with the lower end or the upper end of the bracket and forms a filtering outlet.

Furthermore, the support is of a gear-shaped column structure, and the upper part and the lower part of the support are in an inverted cone shape or an inverted tower shape.

further, antiseized filter screen is fixed to the support through decide type piece or mounting to help the support to fix antiseized filter screen, ensure the stability of filter screen.

Further, be equipped with the sealing member on the high efficiency filter for the filter is sealed when installation on equipment, prevents the sewage seepage.

Furthermore, a connecting piece is arranged on the bracket to fix the high-efficiency filter on the equipment.

Further, the number of the fixing rings can be more than two, and the fixing rings are used for connecting and sealing the high-efficiency filter and equipment. The filtering outlet is an outlet of filtered water or mud, and is connected with other equipment to discharge the related water or mud,

Further, antiseized filter screen can be more than two-layer, improves filtration efficiency and filter fineness.

Furthermore, the anti-sticking filter screen can be made of nano materials, polytetrafluoroethylene materials or coatings, and the self-cleaning and anti-blocking capabilities of the anti-sticking filter screen are improved.

Furthermore, the support can be integrally manufactured or welded by metal or plastic and other materials, is used for fixing the anti-sticking filter screen, can increase the filtering area of the filter screen and bear the water head impact force in sewage filtration.

The utility model has the advantages as follows:

1. Adopt many fold structures, can effectively increase filter area, improve filtration efficiency, also do not have the sludge deposition jam problem of closed angle fold simultaneously.

2. Adopt antiseized filter screen, can effectively reduce the adhesion jam problem of deposit mud on the filter screen, improve filtration efficiency, can adopt the type structure of falling tower simultaneously, can effectively improve mud and break away from speed.

3. When multi-stage filter screens are adopted for filtering, the filtering efficiency can be improved by different filter screen filtering precisions; a large amount of sludge is filtered by a preceding filter screen, and finally, the filter screen mainly ensures the filtering precision.

4. Adopt the solid fixed ring mode of bayonet, need not artifical the bolt of unscrewing, filter screen such as quick is changed, also can ensure sealed effect simultaneously.

Drawings

FIG. 1 is a schematic perspective view of a high efficiency filter with a rectangular prism, one side of which is removed from a filter screen in example 1;

FIG. 2 is a sectional view of embodiment 1 shown in FIG. 1;

FIG. 3 is a schematic perspective view of a high-efficiency filter with petal-shaped multi-filtering surfaces according to example 2;

FIG. 4 is a sectional view of embodiment 2 shown in FIG. 3;

FIG. 5 is a perspective view of the bracket of embodiment 2 shown in FIG. 3;

FIG. 6 is a three-dimensional structural cross-sectional view of an inverted conical high-efficiency filter with multiple filtering surfaces according to example 3;

In the figure: 1-stent, 11-upper stent surface, 12-outer strut; 13-inner side support rod, 14-lower support surface, 2-anti-sticking filter screen, 3-fixing ring, 4-filtering outlet and 5-fixing piece.

Detailed Description

The present invention will be further explained with reference to the following examples and drawings.

Example 1

Referring to fig. 1-2, a high efficiency filter for industrial sewage or domestic sewage purifier, includes support 1, antiseized filter screen 2 and solid fixed ring 3, support 1 is straight quadrangular prism structure, forms by the welding of stainless steel material, antiseized filter screen 2 is bent by the stainless steel filter screen and forms to through mounting 5 and bolt and support 1 fixed connection, gu fixed ring 3 establishes in the middle of the bottom of support 1, form and filter export 4 for with the interface connection on the equipment.

In this embodiment, the top of the bracket 1 is partially spherical and is provided with a filtering hole.

In this embodiment, the fixing member 5 is a pressing bar.

The straight quadrangular structure is adopted in the embodiment, so that the filtering area can be effectively increased, and the anti-sticking filter screen is convenient to mount and maintain; the stainless steel filter screen can effectively prevent the deposited sludge from adhering. When needing to be changed and maintain, can easily follow the top and take off the filter and carry out the whole change and maintain, when letting the filter screen damage, also can realize changing the filter screen fast.

Example 2

referring to fig. 3-5, a high efficiency filter for industrial sewage or domestic sewage purifier, includes support 1, antiseized filter screen 2 and solid fixed ring 3, support 1 adopts the shaping of engineering plastics mould for diverging form cylinder structure, antiseized filter screen 2 adopts polytetrafluoroethylene cloth, folds into filtration along support 1 shape to through gluing and mounting 5 fixed to support 1, gu fixed ring 3 establishes in the middle of support 1 and fixed from top to bottom to form and filter outlet 4, be used for with the liquid interface connection on the equipment.

In this embodiment, the fixing member 5 is a pressing bar.

In this embodiment, the bracket 1 includes an upper bracket surface 11, an outer support rod 12, an inner support rod 13, a lower bracket surface 14, and a handle 15, the upper bracket surface 11 is connected to the lower bracket surface 14 through the outer support rod 12 and the inner support rod 13, and the handle 15 is disposed on the upper bracket surface 11; the water pressure generated by the anti-sticking filter screen 2 in the filtering process can be effectively borne by the upper support surface 11, the outer support rod 12, the inner support rod 13 and the lower support surface 14.

The embodiment adopts a divergent cylinder structure, the effective filtering area of the cylindrical filter is 5 times of that of a circular filter, and the filtering efficiency can be effectively improved; meanwhile, the divergent column structure can ensure that impurities and sludge are filtered and smoothly descend and settle, and the sludge jamming problem of the folded filter screen is effectively avoided; the polytetrafluoroethylene cloth is used as a filter screen, so that high-precision filtration of muddy water can be realized, and meanwhile, filtered sludge and impurities are not adhered to the filter screen.

Example 3

Referring to fig. 6, a high efficiency filter for an industrial sewage or domestic sewage purification apparatus is different from embodiment 2 in that: the bracket 1 is of a gear-shaped cylinder structure, and the upper part and the lower part of the bracket are in an inverted cone shape, so that the deposition of filtered sludge is facilitated;

The support 1 comprises an upper support plate 15, a porous support plate 16 and a lower support plate 17, wherein the upper support plate 15 is connected with the lower support plate 17 through the porous support plate 16, and the upper support plate 15, the porous support plate 16 and the lower support plate 17 are formed by welding stainless steel plates; the anti-sticking filter screen 2 is welded on the support 1 by adopting a stainless steel wire mesh, and the cross section of the framework is in a multi-fold shape, so that the filtering area is increased and is 3 times of that of a common cylindrical filter screen; the fixing ring 3 is made of stainless steel and is welded to the lower support plate 17.

Claims (9)

1. a high efficiency filter for industrial sewage or domestic sewage purification device, its characterized in that: the anti-sticking filter screen comprises a bracket, an anti-sticking filter screen and a fixing ring, wherein the bracket is of a rectangular prism structure or a divergent cylinder structure or a gear-shaped cylinder structure; the anti-sticking filter screen is fixed on the bracket and is arranged into a filter structure according to the shape of the bracket; the fixed ring is fixedly connected with the lower end or the upper end of the bracket and forms a filtering outlet.

2. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1, wherein: the support is of a gear-shaped cylinder structure, and the upper part and the lower part of the support are in an inverted cone shape or an inverted tower shape.

3. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the anti-sticking filter screen is fixed on the bracket through a fixed piece or a fixed piece.

4. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: and a sealing element is arranged on the high-efficiency filter.

5. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the bracket is also provided with a connecting piece.

6. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the number of the fixing rings is more than two.

7. the high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the anti-sticking filter screen is more than two layers.

8. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the anti-sticking filter screen is made of a nano material, a polytetrafluoroethylene material or a coating.

9. The high efficiency filter for an industrial sewage or domestic sewage purification apparatus according to claim 1 or 2, wherein: the bracket is integrally manufactured by metal or plastic or manufactured by welding.