CN2918401Y

CN2918401Y - High concentration biochemistry aerator

Info

Publication number: CN2918401Y
Application number: CNU2006200404330U
Authority: CN
Inventors: 周桂生; 周继伟; 吴蓉蓉
Original assignee: SHANGHAI BAIFENG ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: SHANGHAI BAIFENG ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2006-03-23
Filing date: 2006-03-23
Publication date: 2007-07-04
Anticipated expiration: 2016-03-23

Abstract

The utility model discloses a high concentration biochemical aerator, comprising a pump, an inlet pipe, an outlet pipe, an air-water mixing tube and a spout; the connection order: the air-water mixing tube, the single stage compression tube, the second expansion/shrinkage pipe, the air-water spreading tube and the spout; the middle part of the single stage compression tube and the second expansion/shrinkage pipe are shrunk, and the two ends are in the shape of a bell-mouthed structure. The liquid level in the biochemical pond is generally more than 8 m, the cubage of the biochemical pond is increased and the travel of air micro vesicle is doubled to 60%, the utilization ratio of oxygen is over four times of the existing blast aeration, thereby enabling a slow separation of mud, water and air, and the equalization of the dissolved oxygen is fully improved. A jet nozzle shot and a pair pool bottom are provided, the biochemical sludge can be flipped completely in the pool, the investment is saved. The utility model has low noise, the exact soundproof setting is not required, the maintenance cost is low, a maintenance period is 90% less than that of the blower, the removal rate of the COD cr, BOD5 etc. in water is high with stable removing effect.

Description

High-concentration biochemical aerator

One, technical field:

The utility model high-concentration biochemical aerator, the technical field of sewage that relates to, particularly the oxygenate apparatus technical field is applied to sewage treatment project, oxygenations such as biochemistry pool, equalizing tank.

Two, background technology

At present, the biochemical oxygenate apparatus of sewage treatment project all adopts blowing plant, ubiquity: the general water level of this gas blower oxygenation is all at 4m～5m, not enough as blower pressure, its oxygenation stroke is short, because in the microbubble rising, several amalgamations form air pocket together under hydraulic pressure, proportion is lighter, and the oxygen molecule in the oxygenation emerges very soon, forms energy dissipation; If do not improve oxygen-supplying amount, then biochemistry is just opened badly, certainly will running cost be significantly improved improving oxygen supply current consumption; Owing to adopt gas blower, it must be furnished with aeration head, carries out the big area air feed, and aeration head easily blocks, cause air-flow to open circuit, the oxygen supply inequality during maintenance, must be taken out in the decontamination pond and carry out under the liquid situation, cause the pipeline repair time long, the maintenance cost height, maintenance technique requires high, has directly influenced service efficiency.

Three, summary of the invention:

The purpose of this utility model is to overcome above-mentioned defective, adopts the method that air water mixes, air water compresses, air water spreads, and designs a kind of with the high-concentration biochemical aerator of pump as propulsion source.Its technology is to realize like this, comprise that sludge pump, sludge pump inlet pipe, mud pump the structure of spout at the bottom of pipe, spout, the pond, it is characterized in that: the connection of described high-concentration biochemical aerator, connect by the top-down fixed order of spout at the bottom of negative pressure chamber, mixing battery, compressed pipe, the scalable pipe air water of secondary diffuser tube, the pond, spout is located at the lower end of air water diffuser tube.Spout is in 1-3 scope at the bottom of the pond, and one time compressed pipe, the middle of the scalable pipe of secondary shrink, and two ends are bell-mouthed structure.The positive effect of implementing after this technology is: the liquid level of biochemistry pool is general all more than 8m, increased the biochemistry pool volume, the air micro-bubbles stroke is doubled, the utilization ratio that reaches oxygen increases, it is elementary molten vaporous that water and gas are formed, make that oxygen penetrates in activated sludge layer in the air, reach mud, water, gas separates slow, it is even fully to improve dissolved oxygen, and the rate of transform and the utilization ratio that have improved oxygen can reach 45%, is existing more than 4 times of blast aeration, since be provided with the spout device penetrate with one at the bottom of the pond, form biochemical sludge and all in the pond, stir, do not need at the bottom of the pond, to establish vertical, horizontal, pipeline and aeration head are saved investment.Guarantee the biochemistry pool upper, middle and lower, no mud causes the abominable phenomenon that expands because of anoxic.Because adopt water pump to be used as power, noise is low, does not need the setting of tight sound insulation, easy to operate, maintenance cost is low, and the maintenance interval lacks 90% than gas blower, to COD in water body cr, BOD ₅Deng the clearance height, and removal effect is stable.

Four, description of drawings:

Fig. 1 is a sectional structure synoptic diagram of the present invention,

Wherein, spout, 8-sludge blanket, 9-biochemistry pool, 10-sludge pump, 10-1-sludge pump inlet pipe, 10-2-mud pump pipe at the bottom of 1-negative pressure chamber, 1-1-air passageways, 2-mixing battery, the scalable pipe of a compressed pipe 4-of 3-secondary, 5-air water diffuser tube, 6-spout, the 7-pond;

Five, embodiment:

Is example below in conjunction with accompanying drawing with the 8m pond, and the present invention is further described:

See accompanying drawing 1, high-concentration biochemical aerator is located at the dark biochemistry pool of 8m 9, sludge pump 10 sludge pump inlet pipe 10-1 enter biochemistry pool 9 sludge blankets 8, the mud of sludge pump 10 pumps pipe 10-2 and connects negative pressure chamber 1, negative pressure chamber 1 side is provided with air passageways 1-1, mixing battery 2 is pressed 1 lower end by negative pressure chamber, compressed pipe 3, second-compressed pipe 4, air water diffuser tube 5 top-down fixed order connect, the lower end side of air water diffuser tube 5 be provided with 4 by spout 7 at the bottom of evenly distributed 6,1 ponds of spout of circumference at the bottom of the pond.

See accompanying drawing 1, energising, sludge pump 10 starts, constantly the mixture of mud that extracts and sewage is through sludge pump inlet pipe 10-1, sludge pump 10, mud pumps pipe 10-2 and enters negative pressure chamber 1, the mixture of mud and sewage is spread in negative pressure chamber 1, form negative pressure, air enters negative pressure chamber 1 through air passageways 1-1, mud mixes with air admission mixing battery 2 with the mixture of sewage, mixed mixture enters a compressed pipe 3 and contracts, expand and expand, entering the scalable pipe 4 of secondary again carries out secondary and contracts, expand and expand, contract, expand the expansible mixture and enter air water diffuser tube 5 and loose and expose to the sun, by 4 spouts 6, spout 7 evenly sprays at the bottom of 1 pond, the mud of 7 pairs of sludge blankets 8 of spout carries out non-setting rolling at the bottom of the pond, does cycle operation; Make the mixture of mud and sewage scalable through the 8m pipeline with the suction air, loosing exposes to the sun is diffused in ejection at the bottom of the pond, spray is apart from reaching 2m, the water and the gas of ejection form elementary molten vaporous, make that oxygen penetrates in activated sludge layer in the air, reach mud, water, gas and separate slowly, fully improve the rate of transform and the utilization ratio of oxygen, reach the purpose of sewage disposal.

Claims

1. the utility model high-concentration biochemical aerator, comprise that sludge pump (10), sludge pump inlet pipe (10-1), mud pump the structure of spout (7) at the bottom of pipe (10-2), spout (6), the pond, it is characterized in that: the connection of described high-concentration biochemical aerator, by negative pressure chamber (1), the top-down fixed order of spout (7) connects at the bottom of mixing battery (2), a compressed pipe (3), the scalable pipe of secondary (4), air water diffuser tube (5), the pond, and spout (6) is located at the lower end of air water diffuser tube (5).

2. according to the described high-concentration biochemical aerator of claim 1, it is characterized in that: air water diffuser tube (5) lower end is provided with 5～15 spouts (6), is the plum blossom shape and arranges.

3. according to the described high-concentration biochemical aerator of claim 1, it is characterized in that: spout at the bottom of the pond (7) is in 1-3 scope.

4. according to the described high-concentration biochemical aerator of claim 1, it is characterized in that: shrink in the middle of a compressed pipe (3), the scalable pipe of secondary (4), two ends are bell-mouthed structure.