CN211255426U

CN211255426U - Up-flow anaerobic sludge bed reactor

Info

Publication number: CN211255426U
Application number: CN201922018523.XU
Authority: CN
Inventors: 周江涛; 高亮亮; 王效恒
Original assignee: Henan Qitai Environmental Engineering Co ltd
Current assignee: Henan HUANDA Environmental Protection Technology Co.,Ltd.
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-14
Anticipated expiration: 2029-11-21

Abstract

The utility model provides an up-flow anaerobic sludge bed reactor, relates to the sewage treatment field, including the reactor casing, the reactor casing internal fixation is equipped with the baffle near the bottom, has seted up the water passageway on the baffle, still is equipped with the inflow pipe in the middle of the baffle, and the cover is equipped with the bedstead on the inflow pipe, and bedstead and reactor casing sealing connection offer the water inlet that is located between bedstead and the baffle on the reactor casing, and the fixed defoaming otter board that is equipped with in bedstead top, the fixed three-phase separator that is equipped with in defoaming otter board top. Compared with the prior art, the water inlet is arranged at the innovation point below the sludge bed, the sludge bed is surrounded to a greater extent, a good heat and mass exchange effect is achieved, and sludge on the bed frame cannot be impacted.

Description

Up-flow anaerobic sludge bed reactor

Technical Field

The utility model relates to a sewage treatment field, especially an up-flow anaerobic sludge bed reactor.

Background

The upflow anaerobic sludge blanket reactor settles sludge at the bottom of the reactor to form a sludge blanket in a mode of separating sludge, water and gas, a biological polymer structure is formed by an immobilization mechanism of the sludge, and pollutants are continuously decomposed to generate regenerated clean energy, namely methane.

The existing upflow anaerobic sludge bed reactor directly passes through a sludge bed when water enters the reactor, and performs heat and mass exchange with sludge, but the flow rate of sewage is very high, and the purpose of good heat and mass exchange cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the present invention is to provide a method for manufacturing a semiconductor device.

The upflow anaerobic sludge blanket reactor is characterized in that a partition board close to the bottom is fixedly arranged in the reactor shell, a water channel is formed in the partition board, a vertical inflow pipe is fixedly arranged in the middle of the partition board, a funnel-shaped bedstead is sleeved on the inflow pipe, the bedstead is hermetically connected with the reactor shell, a water inlet between the bedstead and the partition board is formed in the reactor shell, a defoaming screen plate is fixedly arranged above the bedstead, a three-phase separator is fixedly arranged above the defoaming screen plate, a water outlet is formed in the side wall of the reactor shell, and a gas outlet is formed in the top of the reactor shell.

Preferably, the three-phase separator comprises a gas baffle fixedly arranged in the reactor shell and a gas collecting hood positioned above the gas baffle, the gas collecting hood is in an inverted funnel shape, a biogas pipe extending out of a gas outlet of the reactor shell is fixedly arranged at the upper end of the gas collecting hood, an annular filler layer is fixedly arranged between the lower end of the gas collecting hood and the reactor shell, and the filler layer is also fixedly arranged in the biogas pipe.

Preferably, the number of the water outlets is two, the water outlet directions of the two water outlets are deviated from each other, and the two water outlets are both positioned above the packing layer.

Preferably, the defoaming screen plate is a stainless steel screen structure.

Preferably, spray heads mounted on the reactor shell are uniformly distributed below the defoaming screen plate.

Preferably, the water inlet and the water channel are respectively positioned at two sides of the inflow pipe.

The utility model has the advantages that: contrast prior art has the innovation point of arranging the water inlet in sludge blanket below, and sewage gets into and flows around leaking hopper-shaped bedstead behind the reactor, and by the middle upflow of bedstead, the prerequisite of sewage upflow is full of sewage in the transition room, and sufficient sewage is piled up to bedstead below this moment, compares current water inflow mode, the utility model discloses the sludge blanket has been surrounded to the mode of intaking that adopts bigger degree, has played good heat and mass exchange effect, can not impact the mud on the bedstead yet.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in figure 1, the upflow anaerobic sludge blanket reactor comprises a reactor shell 1 and is characterized in that a partition plate 2 close to the bottom is fixedly arranged in the reactor shell 1, a transition chamber 3 is formed between the partition plate 2 and the bottom of the reactor shell 1, a water channel 4 is formed on the partition plate 2, a vertical inflow pipe 5 is further fixedly arranged in the middle of the partition plate 2, a funnel-shaped bedstead 6 is sleeved on the inflow pipe 5, the bedstead 6 is hermetically connected with the reactor shell 1, a water inlet chamber 7 is defined between the bedstead 6 and the partition plate 2, a water inlet 8 positioned between the bedstead 6 and the partition plate 2 is formed in the reactor shell 1, sewage enters the water inlet chamber 7 from the water inlet 8, the sewage can only enter the transition chamber 3 from the water channel 4, and flows upwards through the inflow pipe 5 after the transition chamber 3 is filled with the sewage, so that the bottom of the whole bedstead 6 is surrounded, and heat exchange is simultaneously carried out above and below a sludge blanket 9, the heat and mass exchange area and capacity are effectively improved, a defoaming screen plate 12 is fixedly arranged above the bedstead 6, a three-phase separator 14 is fixedly arranged above the defoaming screen plate 12, a water outlet 13 is further formed in the side wall of the reactor shell 1, and a gas outlet is formed in the top of the reactor shell 1. Very easily take the little mud of particle size to move together when containing a large amount of gas in the sewage, the mud of little particle size is just followed water and is discharged together behind three-phase separator 14, so the big sewage of air content can reduce the biological decomposition ability, set up defoaming otter board 12 after, sewage upwards surges through most bubbles of defoaming otter board 12 in being filtered the decontamination water, reduce the possibility that tiny particle mud was taken out by the bubble, sewage after the defoaming continues to rise and gets into three-phase separator 14 in, mud granule deposits and descends to adhere to on the bedstead 6 of bottom gradually and forms sludge bed 9, decompose out marsh gas through biological effect, marsh gas upwards exports from the gas outlet behind three-phase separator 14.

The three-phase separator 14 comprises a gas baffle plate 141 fixedly arranged in the reactor shell 1 and a gas collecting hood 143 positioned above the gas baffle plate 141, the gas collecting hood 143 is in an inverted funnel shape, a biogas pipe 144 extending out of a gas outlet of the reactor shell 1 is fixedly arranged at the upper end of the gas collecting hood 143, an annular filler layer 142 is fixedly arranged between the lower end of the gas collecting hood 143 and the reactor shell 1, and the filler layer 142 is also fixedly arranged in the biogas pipe 144. Sewage passing through the defoaming screen plate 12 upwards enters the settling zone 15 through a gap between the gas collecting hood 143 and the gas baffle 141, sludge is settled and falls onto a sludge bed 9, supernatant is discharged from the water outlet 13, the packing layer 142 between the lower end of the gas collecting hood 143 and the reactor shell 1 has the function of preventing bubbles from taking away sludge with small particle size, partial air with sludge in the sewage is eliminated under early-stage filtration of the defoaming screen plate 12, pressure is reduced for the packing layer 142 on the gas collecting hood 143, and the gas collecting hood 143 is prevented from being blocked by the sludge; the biogas is stopped by the baffle plate 141 to flow to the middle during the rising process, and is finally collected by the gas collecting hood 143 and output from the biogas pipe 144, and the filler layer 142 in the biogas pipe 144 is used for drying the moisture in the biogas to obtain clean biogas.

The number of the water outlets 13 is two, the water outlet directions of the two water outlets 13 are deviated from each other, and the two water outlets 13 are located above the packing layer 142. The single water outlet 13 is positioned at one side of the reactor shell 1, and the side of the upper part of the reactor shell 1 without the water outlet 13 is easy to generate short sewage flow to form a dead water zone.

The defoaming screen plate 12 is of a stainless steel screen structure. The main effect of defoaming otter board 12 is that the most bubble of elimination sewage, and the mesh undersize leads to mud to adhere to and blocks up defoaming otter board 12 on the net on the contrary easily, but the mesh should not be too big yet, and the particle diameter of well granule mud is generally between 0.5~5mm, so the mesh that sets up defoaming otter board 12 is no longer than 5 mm.

And spray heads 11 arranged on the reactor shell 1 are uniformly distributed below the defoaming screen plate 12. The suspension layer area 10 is arranged below the defoaming screen plate 12, and the packing layer 142 is arranged between the lower end of the gas collecting hood 143 and the reactor shell 1, so that sludge with poor settling property cannot be discharged together with supernatant, and only can be continuously suspended in the suspension layer area 10, and therefore, the spray head 11 is arranged below the defoaming screen plate 12, the spray head 11 sprays horizontally, and when the liquid level of the suspension layer area 10 abnormally rises, a flocculating agent solution or coagulant aid solution is sprayed into the reactor by the spray head 11, so that sludge with poor settling property is precipitated; the biological active mud is easy to expand in filamentous fungi when the pH value or the temperature is disordered, and the content of the filamentous fungi can be quickly and effectively reduced by spraying sodium hypochlorite or other strong alkaline solutions into the reactor.

The water inlet 8 and the water channel 4 are respectively positioned at two sides of the inflow pipe 5. In order to ensure the maximum heat exchange area between sewage and sludge, the water inlet 8 and the water channel 4 are arranged at the farthest interval, sewage must circulate at least half a cycle around the inflow pipe 5 after entering, and then can reach the water channel 4, and when the transition chamber 3 and the water inlet chamber 7 are filled with sewage, the maximum area heat and mass exchange can be realized.

When the utility model is used, sewage is led into the water inlet 8, the sewage surrounds the water inlet 7 and enters the transition chamber 3 from the water channel 4, after the transition chamber 3 is full of sewage, the sewage flows upwards from the inflow pipe 5, most bubbles are filtered out through the defoaming screen plate 12 and rise into the three-phase separator 14, the sludge is deposited in the settling zone 15 and then falls on the bed frame 6 to form a sludge bed 9, the subsequent sewage and the sludge bed 9 are subjected to sufficient heat and mass exchange, and supernatant left after the sludge is deposited is discharged out of the reactor through the water outlet 13; the sludge bed 9 decomposes pollutants under the biological action to generate biogas, the biogas rises and is blocked by the gas baffle plate 141 to enter the gas collecting hood 143, and finally the biogas is dried and output from the super gas pipe; when the liquid level of the suspension layer area 10 rises or the SV value is out of regulation, the medicament is sprayed to the suspension layer area 10 through the spray head 11.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. An up-flow anaerobic sludge bed reactor, which comprises a reactor shell (1) and is characterized in that, a partition plate (2) close to the bottom is fixedly arranged in the reactor shell (1), a water channel (4) is arranged on the partition plate (2), a vertical inflow pipe (5) is also fixedly arranged in the middle of the partition plate (2), a funnel-shaped bedstead (6) is sleeved on the inflow pipe (5), the bedstead (6) is hermetically connected with the reactor shell (1), the reactor shell (1) is provided with a water inlet (8) positioned between the bed frame (6) and the partition plate (2), a defoaming screen plate (12) is fixedly arranged above the bedstead (6), a three-phase separator (14) is fixedly arranged above the defoaming screen plate (12), the side wall of the reactor shell (1) is also provided with a water outlet (13), and the top of the reactor shell (1) is provided with a gas outlet.

2. The upflow anaerobic sludge blanket reactor as recited in claim 1, wherein the three-phase separator (14) comprises a gas baffle plate (141) fixedly arranged in the reactor housing (1) and a gas collecting hood (143) positioned above the gas baffle plate (141), the gas collecting hood (143) is in an inverted funnel shape, a biogas pipe (144) extending out of the gas outlet of the reactor housing (1) is fixedly arranged at the upper end of the gas collecting hood (143), an annular filler layer (142) is fixedly arranged between the lower end of the gas collecting hood (143) and the reactor housing (1), and the filler layer (142) is also fixedly arranged in the biogas pipe (144).

3. The upflow anaerobic sludge blanket reactor as in claim 2, wherein there are two water outlets (13), the water outlet directions of the two water outlets (13) are deviated from each other, and the two water outlets (13) are both located above the packing layer (142).

4. The upflow anaerobic sludge blanket reactor as in claim 1, wherein the defoaming screen panel (12) is a stainless steel screen structure.

5. The upflow anaerobic sludge blanket reactor as set forth in claim 4, wherein spray nozzles (11) installed on the reactor shell (1) are uniformly distributed below the defoaming screen plate (12).

6. The upflow anaerobic sludge blanket reactor as in claim 1, wherein the water inlet (8) and the water channel (4) are located on both sides of the inflow pipe (5).