CN2367376Y

CN2367376Y - Foul-water treating-filtering-recovering apparatus

Info

Publication number: CN2367376Y
Application number: CN 99209060
Authority: CN
Inventors: 王纪考; 王纪满
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-29
Filing date: 1999-04-29
Publication date: 2000-03-08
Anticipated expiration: 2009-04-29

Abstract

The utility model relates to a foul water treating filtering recovering apparatus. A filter layer is positioned on the lower part of a tank, a water inlet is positioned on the upper part of the tank, water outlet pipes are positioned on the lower part of the filter layer of the tank, and the filter layer has a multilayer structure and is orderly formed by a coarse strainer layer, a fine sand layer, a fine strainer, a fine sand layer, a gravel layer and water filtering pipes with micro holes from top to bottom. The pipe walls of the water outlet pipes are provided with clear water inlets, the water filtering pipes with micro holes and the water outlet pipes are laid in plane surface, the open ends of the water filtering pipes with micro holes are extended into water outlet pipes form the clear water inlets, when sewage flows across the filter layer, clear water can be discharged from the water outlet pipes. The utility model has the advantages of simple structure, small ground occupation, low cost, high filterability of unit occupation area and good filtration effect.

Description

Sewage recycling filter

The utility model relates to a kind of equipment for separating liquid from solid, particularly the filter that sewage is recycled.

Along with the aggravation of industrial discharge sewage environmental pollution, the waste water control problem also more and more becomes the problem that the whole society is concerned about.In the long-term production practice, people have found out the method for many closed recycling sewage, as stair type sedimentation basin, filtering ponds or the like, because being provided with of its structure and filter course is unreasonable, so though investment is big, but filter effect is relatively poor.Along with the prolongation of service time, some filtering ponds even lose filtration and be forced to stop using, the sewage pollution problem still can not solve effectively.

The utility model purpose is to overcome above-mentioned shortcoming of the prior art and a kind of sewage recycling filter is provided, and improves wastewater treatment efficiency.

Sewage recycling filter comprises pond groove, water inlet, outlet pipe, filter course in forming, and filter course is positioned at groove bottom, pond, and water inlet is positioned at the top of groove top, pond, filter course, and outlet pipe is positioned at groove filter course below, pond.Filter course is a sandwich construction, is followed successively by coarse strainer layer, fine sand granulosa, fie screen, fine sand layer, rubble sublayer, minute aperture filter pipe from top to bottom.After sewage flows into the pond groove by water inlet, the above-mentioned filter course of flowing through successively from top to bottom, the clear water after the filtration is discharged from outlet pipe, so that recycle.

Above-mentioned sewage recycling filter, the outlet pipe of described minute aperture filter pipe and pond trench bottom is the plane to be laid, and has the clear water import on the top of water outlet tube wall, and the openend of minute aperture filter pipe stretches into outlet pipe from the clear water import.Clear water after the filtration flows out the pond groove from minute aperture filter pipe open end is collected to outlet pipe via the clear water import after.

Above-mentioned sewage recycling filter, described pond trench bottom is provided with the backwash water pipe, and the filter course top is provided with the sewage backwash pipe;

Above-mentioned sewage recycling filter can be divided into two with the pond groove by pool wall, and two pond arranged side by side grooves are used alternatingly;

The utility model is simple in structure, and floor space is little, and cost is low, long service life, and the unit occupied area filter capacity is big, and good filtration effect is particularly suitable for the recycling of sewage such as papermaking, chemical industry, leather, electric power, and is pollution-free, can economize on water 80%.

Fig. 1 is the floor map of the utility model embodiment.

Fig. 2 is the A-A generalized section of the utility model embodiment.

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment:

Comprise pond groove (1), water inlet (2), outlet pipe (3), filter course in the composition of the present utility model, pond groove (1) can be divided into two by pool wall (4), filter course is positioned at groove bottom, pond, water inlet (2) is positioned at the top of groove top, pond, filter course, sewage is after water inlet pipe (14) flows into braiding channel (15), flow into pond groove (1) from water inlet (2) again, to reduce the Turbulence Flow of sewage in the groove of pond.Outlet pipe (3) is positioned at groove filter course below, pond.Filter course is a sandwich construction, be followed successively by from top to bottom that fine sand granulosa (6), fie screen (7), the thickness that coarse strainer layer (5), thickness be about 1cm is about 30cm, granularity is the rubble sublayer (9) of 100-200 purpose fine sand layer (8), the about 5mm of particle diameter, the about 10cm of thickness and is the minute aperture filter pipe (10) that lay on the plane, the inside and outside footpath of this pipe is respectively 28cm and 38cm.The also visual difference of handling, reclaim sewage character adds an amount of lime in fine sand granulosa (6).After sewage flows into pond groove (1), the above-mentioned filter course of flowing through successively from top to bottom, simultaneously, the solid dirt of different-grain diameter is leached by corresponding filtering layer.The outlet pipe of pond trench bottom (3) is the plane with minute aperture filter pipe (10) and lays.Top at outlet pipe (3) wall has clear water import (11), the openend of minute aperture filter pipe (10) can stretch in the clear water import (11) of outlet pipe (3), clear water after the filtration flow to storage cistern after the open end of minute aperture filter pipe (10) is collected to outlet pipe (3) via clear water import (11), taken away by water pump again.

For preventing that each filter course of the present utility model from use being stopped up by the solid dirt that is leached, guarantee sewage recycling quality and efficient, except that regularly removing on the coarse strainer layer (5) the long-pending bulky grain dirt of institute, can be with the alternately flushing of two pond arranged side by side grooves, use, regularly open the backwash water pipe (12) of pond trench bottom, utilize high pressure clear water washing and filtering layer from bottom to top, the sewage after the flushing is discharged from the sewage backwash pipe (13) of filter course top.

Also can structure and the technological process secondary recovery treating apparatus identical with the utility model be set, to improve quality of sewage disposal according to reclaiming arts demand.

Claims

1. a sewage recycles filter, comprise pond groove (1), water inlet (2), outlet pipe (3), filter course in the composition, filter course is a sandwich construction, be positioned at groove bottom, pond, water inlet (2) is positioned at the top of groove top, pond, filter course, outlet pipe (3) is positioned at pond groove (1) filter course below, it is characterized in that filter course is followed successively by coarse strainer layer (5), fine sand granulosa (6), fie screen (7), fine sand layer (8), rubble sublayer (9), minute aperture filter pipe (10) from top to bottom.

2. according to the described sewage recycling filter of claim 1, the outlet pipe (3) that it is characterized in that described minute aperture filter pipe (10) and pond groove (1) bottom, being the plane lays, outlet pipe (3) wall top has clear water import (11), and the openend of minute aperture filter pipe (10) stretches into outlet pipe (3) from clear water import (11).

3. according to claim 1 or 2 described sewage recycling filters, it is characterized in that described pond groove (1) bottom is provided with backwash water pipe (12), the filter course top is provided with sewage backwash pipe (13).

4. according to claim 1 or 2 described sewage recycling filters, it is characterized in that described pond groove (1) is divided into two tanks arranged side by side by pool wall (4).

5. according to the described sewage recycling filter of claim 3, it is characterized in that described pond groove (1) is divided into two tanks arranged side by side by pool wall (4).