CN201224698Y

CN201224698Y - Sludge refluxing apparatus

Info

Publication number: CN201224698Y
Application number: CNU200820071725XU
Authority: CN
Inventors: 刘海军; 张晶
Original assignee: JILIN ZHONGTIAN ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: JILIN ZHONGTIAN ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-04-22
Anticipated expiration: 2018-04-21

Abstract

The utility model belongs to a field of water treatment equipment, in particular to a sludge backflow device of oxidation tank which applies biochemical oxidation method to treat sewage water. The utility model solves the disadvantages that in the prior sludge backflow device has large sedimentation tank and the sludge needs flow back to the oxidation tank by pump when the sludge amount in the oxidation becomes less so as to has large operation cost. The utility model is composed of an oxidation tank, a sedimentation tank, a water baffle, and a water flow channel, the sludge backflow device is characterized in that: the water blocking plate is arranged below the water baffle, a sludge backflow channel is arranged below the water blocking plate, a flow guide plate is slantly arranged in the sedimentation tank and extended into the channel mouth of the backflow channel. The water blocking plate and the flow guide plate are composed of a plurality of rectangular support frames and thin plates connected on the support frames, the rectangular support frames and thin plates connected on the support frames are combined for arrangement. The utility model has the advantages of simple structure, convenient installation, low investment and low operation cost.

Description

The mud reflux

Technical field

The utility model belongs to the water treating equipment field, is specifically related to be applied to mudpan that the biochemical oxidation method the disposes of sewage mud reflux to oxidation pond.

Background technology

At present, being applied to biochemical oxidation method sewage treatment process, is that the back segment at oxidation pond is provided with mudpan, is the effect that guarantees water outlet, and the relative volume of settling tank is bigger, and the sludge quantity of oxidation pond generally can tail off along with current.Therefore, need be back in the oxidation pond the mud in the settling tank is irregular with pump, can guarantee the oxidation pond sludge concentration on the one hand, can improve the treatment effect of settling tank on the other hand, like this, disposable input is bigger, and running cost is higher.

Summary of the invention

The purpose of this utility model is to reduce disposable input and to reduce running cost when improving wastewater treatment efficiency and ensureing the water outlet effect.

The technical solution of the utility model is, a kind of mud reflux, form by oxidation pond, settling tank, water eliminator, water stream channel, feature is provided with eliminator plate below water eliminator, and below eliminator plate, be provided with the mud return flow line, flow deflector is arranged and go deep among the porthole of return flow line in that the settling tank introversion is tilting.

Described eliminator plate and flow deflector are to be formed by polylith rectangle supporting frame and the thin plate assembled arrangement that is connected on the framework.

The beneficial effects of the utility model are: simple in structure, easy for installation, the size of appropriate change eliminator plate and flow deflector can be adjusted the size of water stream channel and mud return flow line; Its operational management need not manual operation, and one-time investment is few, and working cost is low.

Description of drawings

Fig. 1 is a mud reflux diagrammatic cross-section;

Fig. 2 is eliminator plate and flow deflector single chip architecture diagrammatic cross-section;

Fig. 3 is eliminator plate and flow deflector multi-disc combination synoptic diagram;

Sequence number 1 is a water eliminator among the figure, the 2nd, and water stream channel, the 3rd, eliminator plate, the 4th, mud return flow line, the 5th, flow deflector, the 6th, oxidation pond, the 7th, settling tank, the 8th, rectangle supporting frame, the 9th, thin plate.

Embodiment

Below in conjunction with embodiment embodiment of the present utility model is explained:

A kind of mud reflux of present embodiment, by oxidation pond (6), settling tank (7), water eliminator (1), water stream channel (2), form, below water eliminator eliminator plate (3), and below eliminator plate, be provided with mud return flow line (4), flow deflector is arranged and stretch among the mouth of mud return flow line in that the settling tank introversion is tilting.

Wherein oxidation pond, settling tank and water eliminator are finished by civil engineering, oxidation pond plane 8 * 4m ², settling tank 4 * 4m ²Water eliminator height 2m, the wide 0.2m of water stream channel, the wide 0.1m in mud return flow line, the long 4.0m of flow deflector tilts to go deep into operating range 0.1m in the oxidation pond, and the rectangular frame of water eliminator and flow deflector (8) is made by angle bar, thin plate (9) is riveted on the angle bar for the 1.2mm steel plate galvanized, as required permutation and combination.

The working process of present embodiment is, aquaporin was passed through in sewage autoxidation pond, and gravity flow enters settling tank, and by gravity free setting, the mud that settles down back slide oxidation pond along flow deflector through the mud return flow line to mud in settling tank, finishes the mud backflow.Here, oxidation pond is a turbulent system of complete blended, and the settling tank requirement is a layer system relatively stably, water eliminator and eliminator plate constitute the isolated body of a relative closure, two character different systems are separated, guarantee two normally steady runnings of system, simultaneously, the mud that the length requirement of flow deflector is back in the oxidation pond can be blown afloat by aeration head, with the mud in the supplemental pond.

Claims

1, a kind of mud reflux, form by oxidation pond (6), settling tank (7), water eliminator (1), water stream channel (2), feature is to be provided with eliminator plate (3) in the below of water eliminator (1), and below eliminator plate, be provided with mud return flow line (4), flow deflector (5) is arranged and go deep among the porthole of return flow line (4) in that the settling tank introversion is tilting.

2, a kind of mud reflux according to claim 1 is characterized in that described eliminator plate (3) and flow deflector (5) are to be formed by polylith rectangle supporting frame (8) and thin plate (9) assembled arrangement that is connected on the framework.