CN105727604A

CN105727604A - Filter

Info

Publication number: CN105727604A
Application number: CN201410746839.XA
Authority: CN
Inventors: 曹倩倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-08
Filing date: 2014-12-08
Publication date: 2016-07-06

Abstract

The invention provides a filter. A filtering layer is arranged inside a main body of the filter, and a water inlet pipe is arranged above one side of the filtering layer; the water inlet pipe extends downwards toward one side to communicate with a sand extracting pipe, a sand-water separator is arranged at the upper end of the sand extracting pipe, and a water distributor is arranged at the lower end of the sand extracting pipe; and a water outlet pipe and a blow-off pipe are arranged at one side, back on to the water inlet pipe, of the sand-water separator, an air lift pump inlet is formed below the water distributor, and a diversion sand hopper is arranged at the joint of the air lift pump inlet and the water distributor. According to the filter, the structure is simple, the maintenance and repair are convenient, the process treatment efficiency is increased by 50%, the effect is stable, and the operating cost is reduced.

Description

A kind of filter

Technical field

The present invention relates to a kind of filter, be specifically related to a kind of continuous dynamic filter.

Background technology

In water treatment and purification technique, traditional filter is advection filtering tower type, and above-mentioned Filter Back Washing efficiency is low, causing that backwash water amount increases, backwashing period is long, adds operation and management cost, in addition, above-mentioned filtration device structure is generally complex, and later maintenance maintenance comparatively bothers.

Summary of the invention

For solving above-mentioned technical problem, the invention provides a kind of new filter, its simple in construction, safeguard and maintenance is convenient, PROCESS FOR TREATMENT efficiency increases by 50%, effect stability, and operating cost reduces.

A kind of filter, the body interior of this filter is provided with filtering layer, and side is arranged over water inlet pipe；This water inlet pipe connects a sand extraction tube towards its side-lower, and described sand extraction tube is arranged over a grit water separator, and lower end is provided with a water-locator；The side of described grit water separator described water inlet pipe dorsad is provided with an outlet pipe and a blow-off pipe, and described water-locator is connected with the junction of an air lift pump entrance, described air lift pump entrance and water-locator and is provided with a water conservancy diversion sand bucket.

The invention provides a kind of new filter, its simple in construction, safeguard and maintenance is convenient, PROCESS FOR TREATMENT efficiency increases by 50%, effect stability, and operating cost reduces.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below.

Fig. 1 is the structural representation of a kind of filter disclosed in the embodiment of the present invention.

1, filtering layer 2, water inlet pipe 3, sand extraction tube 4, grit water separator 5, water-locator 6, outlet pipe 7, blow-off pipe 8, air lift pump entrance 9, water conservancy diversion sand bucket.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.

As it is shown in figure 1, a kind of filter, the body interior of this filter is provided with filtering layer 1, and the built-in filtrate of filtering layer 1, side is arranged over water inlet pipe 2；This water inlet pipe 2 connects a sand extraction tube 3 towards its side-lower, and described sand extraction tube 3 is arranged over a grit water separator 4, and lower end is provided with a water-locator 5；The side of described grit water separator 4 described water inlet pipe 2 dorsad is provided with outlet pipe 6 and a blow-off pipe 7, and described water-locator 5 is connected with an air lift pump entrance 8, and the junction of described air lift pump entrance 8 and water-locator 5 is provided with a water conservancy diversion sand bucket 9.

The present invention mainly includes following two flow process when actually used:

Filter process: the former water after biochemical treatment or dosing coagulant, is entered uniform cyclone water distributor 5 by water inlet pipe 2, and current are played energy dissipating effect by uniform cyclone water distributor 5, enter filtering layer 1 with making water flow stationary.The pollutant such as the float in former water are from bottom to top by the process of filtering layer 1, dammed to get off by filtrate, filter the effluent overflow weir water being raised to grit water separator 4 top waterborne, water flow stationary ground enters downflow weir, through outlet pipe 6 outflow filter, filter type is upward flow filtration, the steady safety of whole filter process.

Backwash process: at the centrally disposed air sand extraction pipe 3 of filter, air sand extraction pipe 3 straight cutting filter bottom, when compression air is passed into by air lift pump entrance 8, negative pressure is formed in filter bottom, the dirty sand being driven filter bottom by gas stripping is together risen, the dirty sand of bottom rises to grit water separator 4 bottom air sand extraction pipe 3, and sand grains enters integral type grit water separator 4 with current.Sand grains is in backwash lifting process, it is constantly subjected to the shearing force of the friction between the stirring of gas, sand grains and current, make the same separated from contaminants of sand grains, under filtering the water outlet effect with backwash water outlet water-head, the flushing water in air stripping water grit water separator 4 in sand extraction tube 3 is together discharged from blow-off pipe 7.Under gravity, the filtrate cleaned returns to filtering layer 1 through water conservancy diversion sand hopper, completes filtrate wash cycles process inside filter tank.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all amendments made within the spirit of the present invention and converting on an equal basis, all should drop within protection scope of the present invention.

Claims

1. a filter, it is characterised in that the body interior of this filter is provided with filtering layer, and side is arranged over water inlet pipe；This water inlet pipe connects a sand extraction tube towards its side-lower, and described sand extraction tube is arranged over a grit water separator, and lower end is provided with a water-locator；The side of described grit water separator described water inlet pipe dorsad is provided with an outlet pipe and a blow-off pipe, and described water-locator is connected with the junction of an air lift pump entrance, described air lift pump entrance and water-locator and is provided with a water conservancy diversion sand bucket.