CN215162600U - Black film methane tank for improving gas production rate of pig farm - Google Patents
Black film methane tank for improving gas production rate of pig farm Download PDFInfo
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- CN215162600U CN215162600U CN202120279010.9U CN202120279010U CN215162600U CN 215162600 U CN215162600 U CN 215162600U CN 202120279010 U CN202120279010 U CN 202120279010U CN 215162600 U CN215162600 U CN 215162600U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000010865 sewage Substances 0.000 claims abstract description 46
- 239000002893 slag Substances 0.000 claims description 52
- 238000010992 reflux Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 19
- 238000004873 anchoring Methods 0.000 claims description 8
- 229920006262 high density polyethylene film Polymers 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 abstract description 24
- 239000012528 membrane Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 239000013049 sediment Substances 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 22
- 210000004379 membrane Anatomy 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002002 slurry Substances 0.000 description 7
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 5
- 210000002469 basement membrane Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003975 animal breeding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses an improve black membrane methane-generating pit of pig farm gas production, including album dirty pond, the cell body, the backward flow pond, the sediment well, the feed liquor pipe, the drain pipe, the backwash pump, the back flow, sediment pipe and blast pipe, the one end and the dirty pond looks UNICOM of collection of feed liquor pipe, the other end and cell body looks UNICOM, the one end and the cell body looks UNICOM of drain pipe, the other end and backward flow pond looks UNICOM, the backwash pump is installed in the backward flow pond, the one end and the backwash pump looks UNICOM of back flow, the other end and cell body looks UNICOM, sediment well is located outside the cell body, the one end and the cell body looks UNICOM of sediment pipe, the other end and sediment well looks UNICOM, the cell body is equipped with the liquid level line, the blast pipe is equipped with the open end, the open end is higher than the liquid level line. The utility model discloses increase the natural pond liquid backward flow, realize automatic row's sediment, increase the disturbance to cell body sewage, it is not enough to solve black membrane methane-generating pit gas production, utilizes the adverse effect who brings to rear end marsh gas energy, further promotes the gas production effect of black membrane methane-generating pit, reduces the treatment pressure of rear end sewage.
Description
Technical Field
The utility model relates to the technical field of animal breeding, in particular to a black film methane tank for improving the gas production rate of a pig farm.
Background
The resource utilization of the pig farm excrement is one of the important modes of waste treatment advocated by the government of China. The important components of the sewage treatment of the biogas digester crop pig farm are adopted by a plurality of pig farms due to the advantages of low investment cost, low operating cost, strong impact load resistance, good water outlet effect, large gas production and the like. The methane tank has wide application range, large, medium and small livestock farms are suitable for construction, and the COD degradation rate of the pig farm sewage fermented by the methane tank can reach 80-90%. Therefore, the biogas digester is worth popularizing as an important way for recycling the sewage of the pig farm.
At present, most of the biogas digesters in the operating pig farm have the common problem of insufficient biogas production. The factors influencing the insufficient gas production of the methane tank are more, and the problems mainly comprise the aspects of lower carbon-nitrogen ratio of the raw materials, lower temperature, inhibition of microbial environment, slightly acidic pH value of water body and the like, and can be solved in time by making corresponding adjustment. However, the problem of insufficient gas production caused by engineering factors cannot be solved after the biogas digester is built, and particularly, the problem of insufficient gas production caused by excessive deposition of biogas residues due to unreasonable pipeline arrangement in the biogas digester is less concerned and is often ignored. The method for laying the pipelines of the common methane tank is that a water inlet pipeline enters from one side of the tank body, a water outlet pipeline penetrates out from the opposite side of the water inlet pipeline, and the water inlet pipeline is higher than the water outlet pipeline, so that the problem is caused that sewage only flows on the surface of a water body, the sewage in the deep layer of the tank body cannot be disturbed, and the gas production efficiency of fermentation is further influenced. Therefore, the optimization of the pipe arrangement method of the black film methane tank realizes automatic slag discharge, increases the disturbance effect on the sewage of the tank body, and realizes continuous gas production, which becomes the key for improving the gas production rate of the methane.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a black film methane tank for improving the gas production rate of a pig farm.
According to an aspect of the utility model, a black membrane methane-generating pit for improving pig farm gas production is provided, including album dirty pond, the cell body, the backward flow pond, the scum well, the feed liquor pipe, the drain pipe, the backwash pump, the back flow, scum pipe and blast pipe, the one end and the album dirty pond looks UNICOM of feed liquor pipe, the other end and cell body looks UNICOM, the one end and the cell body looks UNICOM of drain pipe, the other end and backward flow pond looks UNICOM, the backwash pump is installed in the backward flow pond, the one end and the backwash pump looks UNICOM of back flow, the other end and cell body looks UNICOM, scum well is located outside the cell body, the one end and the cell body looks UNICOM of scum pipe, the other end and scum well looks UNICOM, the cell body is equipped with the liquid level line, the blast pipe is equipped with the open end, the open end is higher than the liquid level line.
The utility model has the advantages that: the utility model discloses a setting up deslagging well, backflow tank, back flow etc. optimizes laying of black membrane methane-generating pit business turn over liquid pipeline, increases the natural pond liquid backward flow, realizes automatic row's sediment, increases the disturbing action to cell body sewage, solves black membrane methane-generating pit gas production volume not enough, utilizes the adverse effect who brings to the rear end marsh gas energy further promotes the gas production effect of black membrane methane-generating pit, reduces the treatment pressure of rear end sewage.
In some embodiments, the utility model discloses still include the anchor ditch, the anchor ditch is located the cell body outside to around cell body a week, the cell body includes apical membrane and basement membrane, and the basement membrane covers in cell body bottom and lateral wall, and apical membrane covers on cell body open-ended upper portion, and apical membrane and basement membrane are all fixed through the anchor ditch. The anchoring groove is used for fixing the bottom membrane and the top membrane, and the bottom membrane and the top membrane are prevented from sliding along the inclined planes of the four walls of the tank body. The bottom membrane and the top membrane form a closed space in the tank body, and the biogas generated by sewage fermentation can be smoothly carried out.
In some embodiments, both the top film and the bottom film are HDPE films. The HDPE film has the characteristics of seepage prevention and leakage prevention, can ensure that biogas slurry in the tank body cannot seep outwards, cannot pollute the environment and soil, and simultaneously ensures that the biogas prepared by anaerobic fermentation can be smoothly carried out.
In some embodiments, the number of the slag discharging wells is four, the four slag discharging wells are respectively located at the outer sides of four corners of the tank body, and the four slag discharging wells are diagonally and pairwise corresponding to each other. The slag discharge well is used for receiving biogas residues discharged by biogas pressure in the tank body, the tank body can automatically discharge slag, only the discharged biogas residues are required to be cleaned through the slag discharge well, and the tank body is not required to be opened to clean the biogas residues.
In some embodiments, the slag discharging pipe is provided with a slag inlet and a slag outlet, the slag inlet extends into the bottom of the tank body, the slag outlet extends into the slag discharging well, and the height of the slag outlet is higher than that of the slag inlet. When the methane pressure in the tank body is high enough, the methane slag at the bottom of the tank body can be discharged into the slag discharging well, so that the methane slag is prevented from being discharged without being completely fermented and utilized, the utilization efficiency of the methane slag is improved, and the waste of the methane slag is avoided.
In some embodiments, the tank body further comprises a support column, the support column is located at the bottom of the tank body, the exhaust pipe is fixed on the support column, and one end of the exhaust pipe penetrates through the tank body and is communicated with the biogas collection device. The support column is used for supporting and fixing the exhaust pipe, so that the open end of the exhaust pipe is located above the liquid level line, and methane is conveniently discharged along the exhaust pipe and utilized.
In some embodiments, the inlet pipe is higher than the liquid level line, and the outlet pipe is lower than the liquid level line. The height of the water inlet pipe is higher than the liquid level line, so that sewage can conveniently enter the tank body, and the methane liquid is prevented from being re-filled into the sewage collecting tank. The height of the water outlet pipe is lower than the liquid level line, so that the biogas slurry can smoothly flow into the reflux pool.
In some embodiments, the return pipe is provided with a main pipe and a branch pipe, the main pipe is communicated with the return pump, the branch pipes are multiple, one ends of the branch pipes are communicated with the main pipe, the other ends of the branch pipes are communicated with the tank body, the height of each branch pipe is below a liquid level line, and the height of each branch pipe is different. A plurality of branch pipes are communicated with the tank body, so that backflow biogas slurry can be stirred in the tank body conveniently, the heights of the plurality of branch pipes are different, and the discharged backflow biogas slurry can generate better disturbance to water bodies with different depths in the tank body, so that the gas production efficiency of fermentation is improved.
In some embodiments, the return pipe comprises a left return pipe and a right return pipe, the left return pipe and the right return pipe are respectively located on the left side and the right side of the tank body, the reflux pump comprises a left reflux pump and a right reflux pump, the left reflux pump is communicated with the left return pipe, and the right reflux pump is communicated with the right return pipe. The left return pipe and the right return pipe disturb the inside of the tank body from the left side and the right side of the tank body respectively, so that the fermentation gas production efficiency of the whole tank body is improved conveniently.
In some embodiments, the utility model discloses still include first sewage pipe and second sewage pipe, first sewage pipe and the dirty pond of collection looks UNICOM for carry the dirty pond of collection with the sewage in pig farm, the one end and the backward flow pond looks UNICOM of second sewage pipe, the other end and the dirty pond of collection looks UNICOM. The sewage flowing out of the backflow tank can flow back to the sewage collecting tank through the second sewage pipe and then enters the tank body to be fermented again, so that the sewage is prevented from flowing outwards, and the pollution to the environment is reduced.
Drawings
Fig. 1 is a schematic structural view of a black film methane tank for increasing the gas production rate of a pig farm according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a deslagging well and a deslagging pipe of a black film methane tank for improving the gas production rate of a pig farm according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of the water inlet pipe, the water outlet pipe, the exhaust pipe, the support column and the tank body of the black film methane tank for improving the gas production rate of the pig farm according to an embodiment of the present invention.
Fig. 4 is a top view of the tank body and the anchoring groove of the black film methane tank for improving the gas production rate of the pig farm according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
Referring to fig. 1 to 4, the utility model provides a black film methane tank for improving the gas production rate in a pig farm, which comprises a sewage collecting tank 1, a tank body 2, a reflux tank 3, a slag discharge well 4, a liquid inlet pipe 5, a liquid outlet pipe 6, a reflux pump 7, a reflux pipe 8, a slag discharge pipe 9, an exhaust pipe 10, an anchoring ditch 11, a first sewage pipe 12 and a second sewage pipe 13.
A layer of HDPE film is laid on the side wall and the bottom of the dug pool body 2 to be used as a bottom film 21, a layer of HDPE film is covered on the upper opening of the pool body 2 to be used as a top film 22, an anchoring groove 11 is dug on the outer side of the periphery of the pool body 2, the bottom film 21 and the top film 22 are fixed in the anchoring groove 11 through soil pressing, and the bottom film 21 and the top film 22 are connected in a welding mode to form a closed space. The sewage collecting tank 1 and the reflux tank 3 are respectively arranged at two sides of the tank body 2, and the first sewage pipe 12 is communicated with the sewage collecting tank 1 and conveys sewage of a pig farm into the sewage collecting tank 1. The tank body 2 is provided with a liquid level line 23. HDPE films are also known as black films.
One end of the liquid inlet pipe 5 is communicated with the sewage collecting tank 1, the other end of the liquid inlet pipe is communicated with the tank body 2 and is welded with the bottom membrane 21, one end of the liquid outlet pipe 6 is communicated with the tank body 2 and is welded with the bottom membrane 21, the other end of the liquid outlet pipe is communicated with the reflux tank 3, and the liquid outlet pipe 6 is positioned on the opposite side of the liquid inlet pipe 5. The liquid inlet pipe 5 is positioned above the liquid level line 23, and the liquid outlet pipe 6 is positioned below the liquid level line 23. The material of the liquid inlet pipe 5 and the material of the liquid outlet pipe 6 are HDPE pipes.
The reflux pump 7 comprises a left reflux pump 71 and a right reflux pump 72 which are respectively arranged at two ends in the reflux pool 3, and the reflux pipe 8 comprises a left reflux pipe 81 and a right reflux pipe 82. The left return pipe 81 is provided with a main pipe 811 and three branch pipes 812, one end of the main pipe 611 of the left return pipe 81 is communicated with the left return pump 71, the other end is communicated with the three branch pipes 812, the three branch pipes 812 of the left return pipe 81 are respectively communicated with the tank body 2, and the three branch pipes 812 of the left return pipe 81 are all located below the liquid level line 23 of the tank body 2. The three branch pipes 812 of the left return pipe 81 have different heights from the bottom of the tank body 2. The three branch pipes 812 are all connected to the bottom film 21 by welding.
The right return pipe 82 is provided with a main pipe 821 and three branch pipes 822, one end of the main pipe 821 of the right return pipe 82 is communicated with the right return pump 72, the other end of the main pipe 821 of the right return pipe 82 is communicated with the three branch pipes 822 of the right return pipe 82, the three branch pipes 822 of the right return pipe 82 are respectively communicated with the tank body 2, and the three branch pipes 822 of the right return pipe 82 are all positioned below the liquid level line 23 of the tank body 2. The three branches 822 of the right return pipe 82 have different heights from the bottom of the tank body 2. The three branch pipes 812 of the left return pipe 81 are different in height from the bottom of the tank body 2 from the three branch pipes 822 of the right return pipe 82 from the bottom of the tank body 2.
The number of the slag discharging wells 4 is four, the four slag discharging wells 4 are respectively positioned at the outer sides of four corners of the tank body 2, and the four slag discharging wells 4 are in diagonal pairwise correspondence. The slag discharging pipe 9 is provided with a slag inlet 91 and a slag outlet 92, the slag inlet 91 extends into the bottom of the tank body 2, the slag outlet 92 extends into the slag discharging well 4, and the height of the slag outlet 92 is higher than that of the slag inlet 91.
One end of the second sewage pipe 13 is communicated with the reflux pool 3, and the other end is communicated with the sewage collecting pool 1.
In the use process of the utility model, the pressure of the methane in the tank body 2 is increased, and the methane slag at the bottom of the tank body 2 is pressed to the slag inlet 91. The biogas residues are discharged from the slag outlet 92 into the slag discharging well 4 at the outer side of the tank body 2 through the slag discharging pipe 9, so that the discharged biogas residues can be conveniently cleaned. The biogas slurry in the tank body 2 enters the reflux pool 3 through the liquid outlet pipe 6, the left reflux pump 71 and the right reflux pump 72 pump the biogas slurry in the reflux pool 3 into the left reflux pipe 81 and the right reflux pipe 82 respectively, branch pipes of the left reflux pipe 81 and the right reflux pipe 82 are communicated with the tank body 2 respectively, the refluxed biogas slurry flows into the tank body 2 through the branch pipes, the sewage with different depths in the tank body 2 is disturbed, the fermentation effect of the sewage in the tank body 2 is enhanced, the problem that the gas production rate of the black film biogas tank is insufficient is solved, the adverse effect brought to the utilization of the rear-end biogas energy is solved, the gas production effect of the black film biogas tank is further improved, and the treatment pressure of the rear-end sewage is reduced.
The above description is only some embodiments of the present invention, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (10)
1. The black film methane tank is characterized by comprising a sewage collecting tank, a tank body, a backflow tank, a slag discharging well, a liquid inlet pipe, a liquid outlet pipe, a backflow pump, a backflow pipe, a slag discharging pipe and an exhaust pipe, wherein one end of the liquid inlet pipe is communicated with the sewage collecting tank, the other end of the liquid inlet pipe is communicated with the tank body, one end of the liquid outlet pipe is communicated with the tank body, the other end of the liquid outlet pipe is communicated with the backflow tank, the backflow pump is installed in the backflow tank, one end of the backflow pipe is communicated with the backflow pump, the other end of the backflow pipe is communicated with the tank body, the slag discharging well is located outside the tank body, one end of the slag discharging pipe is communicated with the tank body, the other end of the slag discharging pipe is communicated with the slag discharging well, the tank body is provided with a liquid level line, the exhaust pipe is provided with an open end, and the open end is higher than the liquid level line.
2. The black film biogas digester for increasing the gas production rate of a pig farm according to claim 1, further comprising an anchoring groove, wherein the anchoring groove is located outside the digester and surrounds the digester for a circle, the digester comprises a top film and a bottom film, the bottom film covers the bottom and the side walls of the digester, the top film covers the upper part of the opening of the digester, and the top film and the bottom film are both fixed by the anchoring groove.
3. The black film biogas digester for increasing the gas production rate of a pig farm according to claim 2, wherein the top film and the bottom film are both HDPE films.
4. The black film biogas digester for increasing the gas production rate of the pig farm according to claim 1, wherein the number of the deslagging wells is four, four deslagging wells are respectively positioned at the outer sides of four corners of the digester body, and the four deslagging wells are positioned in diagonal pairwise correspondence.
5. The black film biogas digester for increasing the gas production rate of the pig farm according to claim 1, wherein the slag discharge pipe is provided with a slag inlet and a slag outlet, the slag inlet extends into the bottom of the digester body, the slag outlet extends into the slag discharge well, and the height of the slag outlet is higher than that of the slag inlet.
6. The black film biogas digester for increasing the gas production rate of a pig farm according to claim 1, wherein the tank body further comprises a support column, the support column is located at the bottom of the tank body, the exhaust pipe is fixed on the support column, and one end of the exhaust pipe passes through the tank body and is communicated with a biogas collection device.
7. The black film biogas digester for increasing the gas production rate of a pig farm according to claim 1, wherein the liquid inlet pipe is higher than the liquid level line, and the liquid outlet pipe is lower than the liquid level line.
8. The black film biogas digester for increasing the gas production rate of the pig farm according to claim 1, wherein the return pipe is provided with a main pipe and a plurality of branch pipes, the main pipe is communicated with the return pump, the plurality of branch pipes are provided, one end of each branch pipe is communicated with the main pipe, the other end of each branch pipe is communicated with the tank body, the height of each branch pipe is below the liquid level line, and the height of each branch pipe is different.
9. The black film methane tank for increasing the gas production rate of the pig farm according to claim 8, wherein the return pipe comprises a left return pipe and a right return pipe, the left return pipe and the right return pipe are respectively positioned at the left side and the right side of the tank body, the reflux pump comprises a left reflux pump and a right reflux pump, the left reflux pump is communicated with the left return pipe, and the right reflux pump is communicated with the right return pipe.
10. The black film biogas digester for increasing the gas production rate of the pig farm according to claim 1, further comprising a first sewage pipe and a second sewage pipe, wherein the first sewage pipe is communicated with the sewage collecting tank for conveying sewage of the pig farm to the sewage collecting tank, one end of the second sewage pipe is communicated with the return tank, and the other end is communicated with the sewage collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279010.9U CN215162600U (en) | 2021-02-01 | 2021-02-01 | Black film methane tank for improving gas production rate of pig farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279010.9U CN215162600U (en) | 2021-02-01 | 2021-02-01 | Black film methane tank for improving gas production rate of pig farm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215162600U true CN215162600U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120279010.9U Active CN215162600U (en) | 2021-02-01 | 2021-02-01 | Black film methane tank for improving gas production rate of pig farm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215162600U (en) |
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2021
- 2021-02-01 CN CN202120279010.9U patent/CN215162600U/en active Active
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