CN201260911Y - Filtering equipment for sewage disposal - Google Patents

Abstract

The utility model relates to a filtering device for polluted water treatment, which comprises a filtering element. The upper end and the lower end of the hollow filter element formed by the stacking of filter plates are respectively connected with a through head and a seal head; the inner surface and the outer surface of the filter element are provided with ring-shaped grooves along the axial lead direction at regular intervals; and an inflatable airbag is arranged in a hollow cavity. The utility model has the advantages of simple structure, good filtering effect, reliable performance, and the like, is convenient to backwash, and realizes the pressure equalizing and balance of a filter gap during backwashing, and prolongs the service life of the filter element.

Description

The filter of sewage disposal

Affiliated technical field

The utility model relates to a kind of water treatment facilities, particularly a kind of being used for industry and the filter handled of civil sewage.

Background technology

For industry and civilian sewage disposal, it is sandstone formula filter, walnut shell-type filter etc. that its sewage water filtration is handled equipment commonly used, these filter plant ubiquity volumes are bigger, filter effect is not good, for the extension wax of filter core, the processing of obstruction, need to carry out backwash with a large amount of clear water simultaneously, this causes the secondary pollution and the waste of a large amount of clear water again, and will handle again the water that pollutes, waste energy.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, good filtration effect, the filter of the sewage disposal of conserve water resource.

For achieving the above object, the filter of the utility model sewage disposal comprises filter core, it is characterized in that: the hollow filter core is to be formed by stacking by filter plate, its upper/lower terminal is connected with logical head and end socket respectively, the inside and outside surface of filter core is provided with annular groove at regular intervals along direction of axis line, in the filter core cavity air bag is installed.

After adopting said structure, when the filter membrane thickness of filter core outer surface is excessive, by in air bag, charging into compressed air, air bag is expanded rapidly, water in the filter core is sprung up from inside to outside between filter plate fast, reach the purpose of loosening filter membrane, realize backwash, prevent the obstruction of filter core effectively, prolong filter core service life.Carry out backwash with prior art from outside introducing clear water simultaneously and compare, saved water resource, cut down the consumption of energy.The inside and outside surface of filter core is used for guiding and filters and oppositely spring up along the annular groove that direction of axis line is provided with at a certain distance, and can guarantee filter crack self-balancing, thereby has improved filter efficiency, has stablized filter quality.

Described logical head, end socket inner surface are interior spherical.

Described filter core is cylinder or prism.

Characteristics of the present utility model are: compare with the sandstone filter of same throughput of filtration, its volume dwindles 10-20 times at least, has filter effect preferably, dependable performance, and be convenient to backwash, in backwash process, realized all pressing and filtering the crack balance, prolong filter core service life, adopt airbag structure to carry out backwash, saved water resource, reduced energy consumption.

Description of drawings

Fig. 1 is the filter apparatus configuration schematic diagram of the utility model sewage disposal.

The partial enlarged drawing of Fig. 2 for showing as Fig. 1.

The utility model is described in further detail below in conjunction with accompanying drawing for the specific embodiment:

As shown in Figure 1, 2, the filter core of filter is to be formed by stacking by stainless steel filter plate 1, in order to save rapidoprint, filter core is processed into four prisms cylinder, also can be cylinder or multiedge cylinder.The hollow cavity cross section of filter core is circular, spherical logical 2 and interior spherical end socket 3 in the filter plate upper/lower terminal after the stack is provided with,, the inner surface of logical head and end socket also can be the awl inclined-plane, this structural design can be improved the isostasy in the chamber.Filter plate, logical head and end socket link into an integrated entity by screw rod 6.The inside and outside surface of filter core is provided with annular groove 4 at regular intervals along direction of axis line, air bag 5 is installed in the hollow cavity of filter core, when filter membrane thickness is excessive, by in air bag, charging into compressed air, air bag is expanded rapidly, water in the filter core is sprung up from inside to outside between filter plate fast, reach the purpose of loosening filter membrane, in the process of implementing online backwash, realized filter crack self-balancing.

Claims (3)

1, a kind of filter of sewage disposal, comprise filter core, it is characterized in that: the hollow filter core is to be formed by stacking by filter plate, its upper/lower terminal is connected with logical head and end socket respectively, the inside and outside surface of filter core is provided with annular groove at regular intervals along direction of axis line, in the filter core cavity air bag is installed.

2, the filter of sewage disposal according to claim 1 is characterized in that: described logical head, end socket inner surface are interior spherical.

3, the filter of sewage disposal according to claim 1 and 2 is characterized in that: described filter core is cylinder or prism.

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