CN211226554U - Anaerobic tank backflow stirring device - Google Patents

Abstract

The utility model relates to a waste water treatment technical field is an anaerobism pond backward flow agitating unit, and it includes equalizing basin, anaerobism pond, and the equalizing basin lower part is provided with the water inlet, and the equalizing basin right side is provided with more than four anaerobism ponds, is provided with the overflow weir in the middle of the anaerobism pond, and the fixed intercommunication has the tributary pipeline more than three on the back flow line between centrifugal pump and the back flow pipeline export. The utility model has the advantages of reasonable and compact structure, high durability and convenient use, it can make and form the whirl in the anaerobism pond, do benefit to the abundant contact of material in the anaerobism pond, area of contact has been increased, prevent that a large amount of can subside particulate matter and activated sludge deposit in anaerobism bottom of the pool, effectively degrade the organic matter, solve the anaerobism pond and flow the problem for a short time, and simultaneously, constantly backward flow stirring in the anaerobism pond, make the anaerobism pond form a circulation system, make partly heat scatter and disappear at the backward flow in-process, can reach the purpose of cooling, and the steam generator has the characteristics of safety, labors.

Description

Anaerobic tank backflow stirring device

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a reflux stirring device of an anaerobic tank.

Background

Anaerobic biological treatment technology is always favored by environmental protection workers in the wastewater treatment industry, and has good removal effect, higher reaction rate and better adaptability to toxic substances, and more importantly, compared with aerobic biological treatment, anaerobic biological treatment does not need to provide energy consumption for oxygen transfer, so that the anaerobic biological treatment technology is widely applied in the wastewater treatment industry.

At present, the industrial wastewater treatment station generally adopts a traditional continuous water inlet operation mode of an anaerobic pool/an aerobic pool, the mode is single, the anaerobic pool is deep but has no backflow and stirring design, so that the phenomenon of short flow is easy to occur after the water enters the anaerobic pool through an overflow weir, dead zones are easy to occur at two ends of the anaerobic pool, the contact between the wastewater in the anaerobic pool and activated sludge is insufficient, and a large amount of granular substances are deposited at the bottom of the pool, so that the degradation rate of organic matters in the anaerobic pool is reduced, the COD (chemical oxygen demand) fluctuation of produced water is large, and a large amount of extra wastewater is generated to increase the operation load.

Disclosure of Invention

The utility model provides an anaerobism pond backward flow agitating unit, overcome above-mentioned prior art not enough, it can effectively solve the dark nevertheless not backward flow of anaerobism pond that current anaerobism pond exists and stir the design, the short current phenomenon easily takes place through the overflow weir after leading to the anaerobism pond to intake, anaerobism pond both ends easily produce the blind spot, waste water and activated sludge contact are insufficient in the anaerobism pond, a large amount of particulate matter deposit is in anaerobism bottom of the pool portion, make organic matter degradation rate decline in the anaerobism pond, it is undulant great to produce water COD, produce a large amount of extra waste water and increased the problem of operational load for subsequent handling.

The technical scheme of the utility model is realized through following measure: a backflow stirring device for anaerobic tanks comprises a regulating tank and anaerobic tanks, wherein the lower part of the regulating tank is provided with a water inlet, the right side of the regulating tank is provided with more than four anaerobic tanks, the middle of each anaerobic tank is provided with an overflow weir, a partition plate is arranged between each regulating tank and each anaerobic tank, a partition plate is arranged between every two adjacent anaerobic tanks, a group of diagonal positions of the adjacent partition plates are respectively provided with an overflow port, the anaerobic tank on the upper part of the overflow weir on the rightmost side is fixedly communicated with a backflow pipeline, the water inlet of the backflow pipeline extends into the anaerobic tank on the upper part of the overflow weir on the rightmost side, a centrifugal pump is fixedly arranged on the backflow pipeline, a filter is fixedly arranged between the centrifugal pump and the water inlet of the backflow pipeline, the backflow pipeline between the centrifugal pump and the outlet of the backflow pipeline is fixedly communicated with more than three branch pipelines, the branch pipelines, the outlet of the return pipeline is fixedly communicated with more than four branch pipelines from left to right, and the branch pipelines respectively and correspondingly extend into the bottom of the anaerobic tank at the lower part of the overflow weir.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the filter is a basket filter.

The branch pipeline is a fork type pipeline.

The utility model has the advantages of reasonable and compact structure, high durability and convenient use, it can make and form the whirl in the anaerobism pond, do benefit to the abundant contact of material in the anaerobism pond, area of contact has been increased, prevent that a large amount of can subside particulate matter and activated sludge deposit in anaerobism bottom of the pool, effectively degrade the organic matter, solve the anaerobism pond and flow the problem for a short time, and simultaneously, constantly backward flow stirring in the anaerobism pond, make the anaerobism pond form a circulation system, make partly heat scatter and disappear at the backward flow in-process, can reach the purpose of cooling, and the steam generator has the characteristics of safety, labors.

Drawings

FIG. 1 is a schematic process flow diagram of the preferred embodiment of the present invention.

The codes in the figures are respectively: 1 is the equalizing basin, 2 is the anaerobism pond, 3 is the filter, 4 is the return line, 5 is the tributary pipeline, 6 is the centrifugal pump, 7 is the overflow mouth, 8 is the overflow weir, 9 is the water inlet.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in the attached figure 1, the anaerobic tank backflow stirring device comprises an adjusting tank 1 and an anaerobic tank 2, wherein a water inlet 9 is arranged at the lower part of the adjusting tank 1, more than four anaerobic tanks 2 are arranged at the right side of the adjusting tank 1, an overflow weir 8 is arranged in the middle of each anaerobic tank 2, a partition plate is arranged between the adjusting tank 1 and each anaerobic tank 2, a partition plate is arranged between every two adjacent anaerobic tanks 2, overflow ports 7 are respectively arranged at a group of diagonal positions of the adjacent partition plates, a backflow pipeline 4 is fixedly communicated with the anaerobic tank 2 at the upper part of the rightmost overflow weir 8, the water inlet of the backflow pipeline 4 extends into the anaerobic tank 2 at the upper part of the rightmost overflow weir 8, a centrifugal pump 6 is fixedly arranged on the backflow pipeline 4, a filter 3 is fixedly arranged between the centrifugal pump 6 and the water inlet of the backflow pipeline 4, more than three branch pipelines 5 are fixedly communicated with the, the branch pipelines 5 respectively and correspondingly extend into the bottoms of the anaerobic tanks 2 at the upper parts of the overflow weirs 8 between the regulating tank 1 and the rightmost anaerobic tank 2, the outlets of the return pipelines 4 are sequentially and fixedly communicated with more than four branch pipelines 5 from left to right, and the branch pipelines 5 respectively and correspondingly extend into the bottoms of the anaerobic tanks 2 at the lower parts of the overflow weirs 8.

The existing anaerobic tank 2 is lack of a stirring device, so that settleable granular substances and activated sludge are deposited at the bottom of the anaerobic tank 2, wastewater and activated sludge cannot be in complete effective contact, the anaerobic tank 2 is easy to have short flow and whitening phenomena, and the degradation rate of organic matters in the wastewater is reduced; the utility model discloses increased backflow pipeline 4 and tributary pipeline 5 in anaerobism pond 2 and as the backward flow agitating unit of anaerobism pond 2, can reduce and can subside particulate matter and activated sludge deposit, make waste water and activated sludge fully contact in the anaerobism pond 2, guarantee the active sludge of certain concentration and effectively degrade the organic matter, avoided leading the problem that anaerobism pond 2 blushed because of the short-term current, solved the difficult problem of handling of high concentration organic waste water.

The reflux stirring device of the anaerobic tank can be further optimized or/and improved according to the actual needs:

as shown in fig. 1, the filter 3 is a basket filter.

As shown in fig. 1, the branch line 5 is a forked line.

The utility model discloses in, all install the valve on the backflow pipeline 4 of 6 imports of centrifugal pump and export and every tributary pipeline 5, according to actual conditions needs, can open and close the valve.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

The utility model discloses best embodiment's use: wastewater enters an adjusting tank 1 from a water inlet 9, the wastewater in the adjusting tank 1 enters an upper right anaerobic tank 2 of the adjusting tank 1 from an overflow port 7 at the upper part of the diagonal position of an adjacent partition plate, when the liquid level of the wastewater in the upper right anaerobic tank 2 of the adjusting tank 1 reaches an overflow weir 8, the wastewater overflows from the overflow weir 8 and enters a lower right anaerobic tank 2 of the adjusting tank 1, the wastewater in the lower right anaerobic tank 2 of the adjusting tank 1 enters an anaerobic tank 2 adjacent to the upper right anaerobic tank 2 of the adjusting tank 1 from the overflow port 7 at the lower part of the diagonal position of the partition plate between the two anaerobic tanks 2, and so on, the wastewater sequentially overflows from the overflow port 7 in the adjacent right anaerobic tank 2 of the adjusting tank 1 along an S shape and enters the rightmost anaerobic tank 2 of the adjusting tank 1, under the action of a centrifugal pump 6, the wastewater flows through a filter 3 from an inlet end of a return pipeline 4 to an outlet end of the return pipeline 4, and the wastewater, utilize behind the waste water outflow among the tributary pipeline 5 to deposit 2 bottoms in the anaerobism pond subside particulate matter and activated sludge impact, make the sedimentary matter of 2 bottoms in the anaerobism pond rise, the decline of waste water drives activated sludge and forms the whirl in 2 bottoms in the anaerobism pond with rising, make waste water and activated sludge fully contact in the anaerobism pond 2, increase area of contact, prevent a large amount of activated sludge deposit in 2 bottoms in the anaerobism pond, the problem of waste water short-term flow in the anaerobism pond 2 has been solved, in continuous whirl circulation process, can release the partial heat of waste water, reduce the temperature of waste water in the anaerobism pond 2, can reach better waste water treatment effect, waste water is after handling in the anaerobism pond 2, discharge by the overflow mouth 7 overflow of equalizing basin 1 rightmost anaerobism pond 2.

Claims (3)

1. An anaerobic tank backflow stirring device is characterized by comprising an adjusting tank and anaerobic tanks, wherein the lower part of the adjusting tank is provided with a water inlet, the right side of the adjusting tank is provided with more than four anaerobic tanks, an overflow weir is arranged in the middle of each anaerobic tank, a partition plate is arranged between each adjusting tank and each anaerobic tank, a partition plate is arranged between every two adjacent anaerobic tanks, a group of diagonal positions of the adjacent partition plates are respectively provided with an overflow port, the anaerobic tank at the upper part of the overflow weir at the rightmost side is fixedly communicated with a backflow pipeline, the water inlet of the backflow pipeline extends into the anaerobic tank at the upper part of the overflow weir at the rightmost side, a centrifugal pump is fixedly arranged on the backflow pipeline, a filter is fixedly arranged between the centrifugal pump and the water inlet of the backflow pipeline, the backflow pipeline between the centrifugal pump and the outlet of the backflow pipeline is fixedly communicated with more than three branch pipelines, the branch pipelines respectively, the outlet of the return pipeline is fixedly communicated with more than four branch pipelines from left to right, and the branch pipelines respectively and correspondingly extend into the bottom of the anaerobic tank at the lower part of the overflow weir.

2. The anaerobic tank reflux mixer device as claimed in claim 1, wherein the strainer is a basket strainer.

3. The anaerobic tank reflux mixer apparatus as claimed in claim 1 or 2, wherein the branch line is a forked line.

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