CN104694374A - Four-in-one biogas fermentation device and method - Google Patents
Four-in-one biogas fermentation device and method Download PDFInfo
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- CN104694374A CN104694374A CN201410811650.4A CN201410811650A CN104694374A CN 104694374 A CN104694374 A CN 104694374A CN 201410811650 A CN201410811650 A CN 201410811650A CN 104694374 A CN104694374 A CN 104694374A
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- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
- C12M41/20—Heat exchange systems, e.g. heat jackets or outer envelopes the heat transfer medium being a gas
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Abstract
The invention relates to a four-in-one biogas fermentation device and method. The device comprises a first-stage dry fermentation mechanism, a second-stage wet fermentation mechanism, a folding gas storage bag, a sunlight greenhouse and a solar water heater, wherein the first-stage dry fermentation mechanism comprises an annular dry fermentation tank which is filled with a feed liquid and is arranged in the sunlight greenhouse, a net box which is filled with a material and is soaked in the feed liquid, and a water seal cover which is hermetically arranged at the top of the net box; the second-stage wet fermentation mechanism comprises a wet fermentation tank which is communicated with the dry fermentation tank, a heat exchanger which is arranged in the wet fermentation tank, and a biological membrane which is fixed in the wet fermentation tank; a gas guide pipe is arranged at the top part of the wet fermentation tank; the folding gas storage bag is arranged at the top part of the wet fermentation tank and is communicated with the gas guide pipe; and the solar water heater is arranged at the top part of the sunlight greenhouse and is used for supplying circulating hot water to the heat exchanger. By using the four-in-one biogas fermentation device and the method provided by the invention, the problem that a sludge pump is blocked easily is solved, and by combining the use of solar energy and the sunlight greenhouse, energy sources are saved, the degradation time of a fiber material is shortened, the utilization ratio of a fermentation raw material is improved, the content of methane in biogas is improved, and the comprehensive utilization ratio of biogas residues and biogas slurry is increased.
Description
Technical field
The present invention relates to a kind of biogas fermentation device and method, be specifically related to a kind ofly collect sun power, dry wet two-step fermentation, the biogas fermentation device of Greenhouse Water Culture quaternity and method, belong to technical field of methane fermentation.
Background technology
Along with the fast development of China's new countryside construction, day by day serious living garbage pollution is troubling, the remaining rubbish of life meal and stalk are stacked arbitrarily, excrement of animals is seen everywhere, sanitary sewage direct current underground, if these problem of environmental pollutions are science improvement as early as possible not, the process of building Socialist New will be had a strong impact on.The method of administering organic waste conventional is anaerobically fermenting, the method can turn waste into wealth, namely organic waste can be formed methane and biogas residue liquid through anaerobically fermenting, biogas is a kind of reproducible new forms of energy, and biogas residue liquid then can as fertilizer or the matrix of producing compoiste fertilizer.At present, conventional anaerobic ferment devices generally adopts fully mixing fermentor tank (CSTR), current utilize this device build the common fault of biogas engineering and Problems existing is: stalk and feces of livestock and poultry are put into same fermentor tank and carry out anaerobically fermenting, on the one hand because densified straw is little, Chang Yi swims in fermentor tank top, easily cause material top to crust or material short circuit, and easily cause the blocking of sludge pump; Carbon-rich materials on the other hand for stalk high microsteping needs the first acidified stage in marsh gas fermentation processes, the flora that souring stage is suitable for is facultative anaerobe, and adopt fully mixing biogas fermentation device to try all material anaerobically fermentings, this results in the reduction of the utilization ratio of stalk material, volume yield rate is caused to reduce, increase the laid down cost of device, sexual valence ratio, be unfavorable for using and promoting.
Summary of the invention
For the problems referred to above, the object of this invention is to provide and a kind ofly collect sun power, dry wet two-step fermentation, the biogas fermentation device of Greenhouse Water Culture quaternity and method.
For achieving the above object, the present invention takes following technical scheme: a kind of quaternity biogas fermentation device, is characterized in that, it comprises one-level dry fermentation mechanism, secondary wet fermentation mechanism, folding storage airbag, heliogreenhouse and passive solarenergy water heater; Described one-level is done fermentation mechanism and is comprised one and be filled with feed liquid and be arranged on the dry fermentor tank of ring-type in described heliogreenhouse, is somely filled with material and is immersed in the net cage in described feed liquid, and some sealings are arranged at the water seal cover at described net cage top; The side wall upper part of described dry fermentor tank is provided with the first airway; The described secondary fermentation mechanism that wets comprises one and is arranged at the middle part of described dry fermentor tank coaxially and is attached thereto logical wet fermentor tank, and one is arranged at the interchanger in described wet fermentor tank, and a unsettled microbial film be fixed in described wet fermentor tank; The top of described wet fermentor tank is provided with the second airway, and the lower sidewall of described wet fermentor tank is provided with lower drainage conduit; Described folding storage airbag is arranged on the top of described wet fermentor tank and is connected with the second airway of described wet fermentor tank, described passive solarenergy water heater is arranged on the top of described heliogreenhouse, and described passive solarenergy water heater provides circulating hot water for described interchanger.
In a preferred embodiment, the upper cover of described dry fermentor tank evenly offers some through holes, and described net cage is inserted by described through hole and is immersed in the feed liquid in described dry fermentor tank.
In a preferred embodiment, the sidewall of described wet fermentor tank is also provided with hydraulic mixing pipe and biogas stirring pipe, one end of described hydraulic mixing pipe is connected with described wet fermentor tank, and the other end is connected with described discharge nozzle; One end of described biogas stirring pipe is connected with the top of described wet fermentor tank, and the other end is connected with the bottom of described wet fermentor tank after compressor converges with described first airway.
In a preferred embodiment, described microbial film adopts polyamide fabric to make, and the micropore of described polyamide fabric is 80 ~ 120 orders, and the thickness of every layer of described polyamide fabric is 0.15 ~ 0.2mm, folded 4 ~ 6 layers.
In a preferred embodiment, the outer setting of described wet fermentor tank has an air casing insulation construction.
In a preferred embodiment, carry out soilless culture in described heliogreenhouse, and arrange mechanical lifting rig in described heliogreenhouse, top board arranges suspension hook, and described heliogreenhouse sidewall is also provided with Cold-proof Ditch outward.
In a preferred embodiment, the feed liquid of filling in described dry fermentor tank is people, animal and/or poultry manure sewage, and the material of filling in described net cage is stalk, weeds, rotten vegetable leaf and/or rubbish from cooking.
Based on a quaternity biogas fermentation method for said apparatus, it comprises the following steps:
1) be respectively charged in multiple net cage after material being shredded;
2) dirty for the excrement of dilution class feed liquid is injected in dry fermentor tank by the circulating-heating of water in passive solarenergy water heater in advance after 40 DEG C;
3) net cage is immersed in the feed liquid of dilution, then water seal cover is covered respectively and seal at each net cage top;
4) material in net cage in the feed liquid of dilution hydrolysis, acidifying and portion of methane to carry out one grade fermemtation;
5) feed liquid that one grade fermemtation produces enters in wet fermentor tank through discharge nozzle and infusion, passive solarenergy water heater continues in interchanger, pass into circulating hot water simultaneously provides suitable temperature for the feed liquid in wet fermentor tank, makes the feed liquid in wet fermentor tank carry out B grade anaerobic fermentation;
6) the biogas part that B grade anaerobic fermentation produces sends into folding storage airbag by airway, sprays into wet fermentor tank together with the biogas that another part then produces through compressor and biogas stirring pipe and one grade fermemtation;
7) until material in net cage complete degradable fermented after, the net cage more renewed by method that is artificial or mechanical hoisting.
Carrying out described step 5) time, a part of feed liquid is injected wet fermentor tank through pump and hydraulic mixing pipe, to ensure that secondary wets stirring of feed liquid in fermentor tank.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the invention provides a kind of collection sun power, dry wet two-step fermentation, the Novel methane fermentation device of Greenhouse Water Culture integration, define the optimum ecosystem that take biogas as tie, the net cage of the rich carbon fermentation materials that stalk high microsteping is housed is placed in the dry fermentor tank being filled with feed liquid and is hydrolyzed, acidifying and portion of methane (one grade fermemtation), material takes out after completing acidization and changes, ensure that the amphimicrobian environment of material, enhance the activity of facultative anaerobe, shorten the degradation time of material, then logical the injection in wet fermentor tank of the feed liquid after being completed by one grade fermemtation carries out B grade anaerobic fermentation, and second order fermentation tank meets the environment of complete anaerobism, enhances the activity of anaerobic methane bacterium, improves the volume yield rate of feed liquid, simultaneously, the present invention also combines the advantage of Greenhouse Water Culture device and closing-sunning type solar energy hot water, on the one hand for dry wet two-step fermentation tank ensure that temperature, save the energy, on the other hand the biogas residue and biogas liquid that fermentation produces has been used for Greenhouse Water Culture, desinsection, antibacterial effect can be played, reduce Pesticide use amount, reduce the object of agricultural chemicals low residue, simultaneously, a large amount of natural ponds liquid, natural pond slag can use as base fertilizer, have both decreased kind of plant fertilising cost and have turn increased output benefit.2, the present invention adopts Gan Shi two-step fermentation mechanism, stalk material is placed in net cage, by artificial or mechanical method make its whole enter whole go out, avoid the floating crust of stalk fermentation materials, the problems such as the blocking of material short circuit and sludge pump, improve the utilization ratio of fermentation materials, add the volume yield rate of fermentation unit, and also improve the content of produced methane in sewage gas.3, microbial film of the present invention adopts polyamide fabric that is high-strength, highly dense, corrosion-resistant, that do not degrade to make, and the micropore of polyamide fabric is 80 ~ 120 orders, the thickness of every layer of polyamide fabric is 0.15 ~ 0.2mm, folded 4 ~ 6 layers, then its specific surface area increases 8 ~ 12 times than hard polyethylene bacterium bed, is conducive to retaining and enrichment bacterial classification, when preventing discharge, bacterial classification runs off, improve the attachment of flora and numerous raw ability and activity, simultaneously dead thalline very easily peels off, and does not affect attachment and the breeding of newborn flora.4, the present invention arranges at dry, wet fermentor tank the air casing insulation construction be made up of air casing and conventional external thermal insulation outward, and by blast to air casing hot blast to ensure to do, in wet fermentor tank homo(io)thermism, produce biogas continous-stable, improve volume yield rate, compare traditional zymotic device, this device significantly reduces energy consumption, has saved the energy, has reduced cost.5, the present invention is also provided with hydraulic mixing pipe and biogas stirring pipe on the sidewall of wet fermentor tank, and a part of feed liquid and biogas are injected wet fermentor tank, to ensure stirring of feed liquid in wet fermentor tank.As can be seen here, the flora that the present invention solves different type of respiration dexterously can be survived under respective adapt circumstance, instead of dissimilar fermentation materials is placed in same complete mixed fermentor tank, General Promotion technology content, fully meet the internal cause condition of its fermentation, improve factor of created gase, reduce cost.
Accompanying drawing explanation
Fig. 1 is the schematic front view of quaternity biogas fermentation device of the present invention;
Fig. 2 is the schematic top plan view of quaternity biogas fermentation device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
As shown in Figure 1, quaternity biogas fermentation device provided by the invention comprises one-level dry fermentation mechanism 1, secondary wet fermentation mechanism 2, folding storage airbag 3, heliogreenhouse 4 and passive solarenergy water heater 5.
As shown in Figure 1 and Figure 2, one-level dry fermentation mechanism 1 comprises a dry fermentor tank 11, some net cages 12 and some water seal covers 13.Dry fermentor tank 11 is ring structure and is arranged in heliogreenhouse 4, and be filled with feed liquid in dry fermentor tank 11, and the upper cover of dry fermentor tank 11 circumferentially evenly offers some through holes, the side wall upper part of dry fermentor tank 11 is provided with airway 14.Be filled with material in net cage 12, net cage 12 via through holes is immersed in the feed liquid in dry fermentor tank 11, and the top of each net cage 12 all arranges a water seal cover 13 and seals.
Secondary wet fermentation mechanism 2 comprises wet fermentor tank 21, interchanger 22 and a microbial film 23.Wherein, wet fermentor tank 21 is arranged at the middle part of dry fermentor tank 11 and higher than dry fermentor tank 11, wet fermentor tank 21 is connected with dry fermentor tank 11 with pump 16 by a discharge nozzle 15 coaxially.Interchanger 22 is arranged in wet fermentor tank 21, and interchanger 22 is provided with water inlet pipe 221 and rising pipe 222, and microbial film 23 is fixed in wet fermentor tank 22 by bracket-suspending.The top of wet fermentor tank 22 is provided with airway 24, and the lower sidewall of wet fermentor tank 22 is provided with lower drainage conduit 25.
Folding storage airbag 3 is arranged on the top of wet fermentor tank 21 and is connected with the airway 24 of wet fermentor tank 22, passive solarenergy water heater 5 is arranged on the top of heliogreenhouse 4, the (not shown) and the water outlet of passive solarenergy water heater 5 and water-in are connected with rising pipe 222 with the water inlet pipe 221 of interchanger 22 respectively.
In a preferred embodiment, the sidewall of wet fermentor tank 22 is also provided with hydraulic mixing pipe 26 and biogas stirring pipe 27, and one end of this hydraulic mixing pipe 26 is connected with wet fermentor tank 22, and the other end is connected with discharge nozzle 15.One end of this biogas stirring pipe 27 is connected with the top of wet fermentor tank 22, and the other end is connected with the bottom of wet fermentor tank 22 after compressor 28 converges with airway 14.
In a preferred embodiment, microbial film 23 adopts polyamide fabric that is high-strength, highly dense, corrosion-resistant, that do not degrade to make, and the micropore of polyamide fabric is 80 ~ 120 orders, the thickness of every layer of polyamide fabric is 0.15 ~ 0.2mm, folded 4 ~ 6 layers, then its specific surface area increases 8 ~ 12 times than hard polyethylene bacterium bed, be conducive to retaining and enrichment bacterial classification, when preventing discharge, bacterial classification runs off, and improves the attachment of flora and numerous raw ability and activity, simultaneously dead thalline very easily peels off, and does not affect attachment and the breeding of newborn flora.
In a preferred embodiment, can also at the outer setting one air casing insulation construction of wet fermentor tank 21, the setting of air casing insulation construction 3 ensure that the constant of feed liquid optimal temperature in wet fermentor tank 21, provide significant conservation energy consumption.
In a preferred embodiment, can carry out soilless culture in heliogreenhouse 4, and arrange mechanical lifting rig (as little electric block etc.) in heliogreenhouse 4, top board arranges suspension hook 41, lift by crane for net cage 12 in dry fermentor tank 11, with the net cage 12 more renewed.Heliogreenhouse 4 sidewall is also provided with Cold-proof Ditch 42 outward.
In a preferred embodiment, the feed liquid of filling in dry fermentor tank 11 can be people, animal and/or poultry manure sewage etc.
In a preferred embodiment, the material of filling in net cage 12 can be stalk, weeds, rotten vegetable leaf and/or rubbish from cooking etc.
According to the quaternity biogas fermentation device provided in above-described embodiment, the invention allows for a kind of quaternity biogas fermentation method, it comprises the following steps:
1) be respectively charged in multiple net cage 12 after stalk material being shredded;
2) dirty for the excrement of dilution class feed liquid is injected in dry fermentor tank 11 by the circulating-heating of water in passive solarenergy water heater 5 in advance after 40 DEG C;
3) net cage 12 to be inserted in dry fermentor tank 11 through the through hole of dry fermentor tank 11 upper cover and be immersed in the dirty class feed liquid of excrement of dilution, then water seal cover 13 being covered respectively and seal at each net cage 12 top;
4) hydrolysis in the dirty class feed liquid of the excrement of dilution of the stalk material in net cage 12, acidifying and portion of methane, to carry out one grade fermemtation, can be avoided floating crust and the short circuit of material like this, improve factor of created gase;
5) feed liquid that one grade fermemtation produces is injected in wet fermentor tank 21 through discharge nozzle 15 and pump 16, passive solarenergy water heater 5 continues in interchanger 22, pass into circulating hot water simultaneously provides suitable temperature for the feed liquid in wet fermentor tank 21, makes the feed liquid in wet fermentor tank 21 carry out B grade anaerobic fermentation;
6) the biogas part that B grade anaerobic fermentation produces sends into folding storage airbag 3 by airway 24, wet fermentor tank 21 is sprayed into together with the biogas that another part then produces through compressor 28 and biogas stirring pipe 27 and one grade fermemtation, open waterpower stirring pipe 26 simultaneously and a part of feed liquid is injected wet fermentor tank 21, to ensure that secondary wets stirring of feed liquid in fermentor tank 21;
7) until material in net cage 12 complete degradable fermented after, the net cage 12 more renewed by method that is artificial or mechanical hoisting.
The various embodiments described above are only for further describing object of the present invention, technical scheme and beneficial effect; be not limited to the present invention; within the spirit and principles in the present invention all; any amendment of making, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a quaternity biogas fermentation device, is characterized in that, it comprises one-level dry fermentation mechanism, secondary wet fermentation mechanism, folding storage airbag, heliogreenhouse and passive solarenergy water heater;
Described one-level is done fermentation mechanism and is comprised one and be filled with feed liquid and be arranged on the dry fermentor tank of ring-type in described heliogreenhouse, is somely filled with material and is immersed in the net cage in described feed liquid, and some sealings are arranged at the water seal cover at described net cage top; The side wall upper part of described dry fermentor tank is provided with the first airway;
The described secondary fermentation mechanism that wets comprises one and is arranged at the middle part of described dry fermentor tank coaxially and is attached thereto logical wet fermentor tank, and one is arranged at the interchanger in described wet fermentor tank, and a unsettled microbial film be fixed in described wet fermentor tank; The top of described wet fermentor tank is provided with the second airway, and the lower sidewall of described wet fermentor tank is provided with lower drainage conduit;
Described folding storage airbag is arranged on the top of described wet fermentor tank and is connected with the second airway of described wet fermentor tank, described passive solarenergy water heater is arranged on the top of described heliogreenhouse, and described passive solarenergy water heater provides circulating hot water for described interchanger.
2. a kind of quaternity biogas fermentation device as claimed in claim 1, is characterized in that, the upper cover of described dry fermentor tank evenly offers some through holes, and described net cage is inserted by described through hole and is immersed in the feed liquid in described dry fermentor tank.
3. a kind of quaternity biogas fermentation device as claimed in claim 1, it is characterized in that, the sidewall of described wet fermentor tank is also provided with hydraulic mixing pipe and biogas stirring pipe, one end of described hydraulic mixing pipe is connected with described wet fermentor tank, and the other end is connected with described discharge nozzle; One end of described biogas stirring pipe is connected with the top of described wet fermentor tank, and the other end is connected with the bottom of described wet fermentor tank after compressor converges with described first airway.
4. a kind of quaternity biogas fermentation device as described in claim 1 or 2 or 3, it is characterized in that, described microbial film adopts polyamide fabric to make, and the micropore of described polyamide fabric is 80 ~ 120 orders, the thickness of every layer of described polyamide fabric is 0.15 ~ 0.2mm, folded 4 ~ 6 layers.
5. a kind of quaternity biogas fermentation device as described in claim 1 or 2 or 3, is characterized in that, the outer setting of described wet fermentor tank has an air casing insulation construction.
6. a kind of quaternity biogas fermentation device as described in claim 1 or 2 or 3, it is characterized in that, in described heliogreenhouse, carry out soilless culture, and in described heliogreenhouse, mechanical lifting rig is set, top board arranges suspension hook, and described heliogreenhouse sidewall is also provided with Cold-proof Ditch outward.
7. a kind of quaternity biogas fermentation device as described in claim 1 or 2 or 3, it is characterized in that, the feed liquid of filling in described dry fermentor tank is people, animal and/or poultry manure sewage, and the material of filling in described net cage is stalk, weeds, rotten vegetable leaf and/or rubbish from cooking.
8., based on a quaternity biogas fermentation method for device described in any one of claim 1 to 7, it comprises the following steps:
1) be respectively charged in multiple net cage after material being shredded;
2) dirty for the excrement of dilution class feed liquid is injected in dry fermentor tank by the circulating-heating of water in passive solarenergy water heater in advance after 40 DEG C;
3) net cage is immersed in the feed liquid of dilution, then water seal cover is covered respectively and seal at each net cage top;
4) material in net cage in the feed liquid of dilution hydrolysis, acidifying and portion of methane to carry out one grade fermemtation;
5) feed liquid that one grade fermemtation produces enters in wet fermentor tank through discharge nozzle and infusion, passive solarenergy water heater continues in interchanger, pass into circulating hot water simultaneously provides suitable temperature for the feed liquid in wet fermentor tank, makes the feed liquid in wet fermentor tank carry out B grade anaerobic fermentation;
6) the biogas part that B grade anaerobic fermentation produces sends into folding storage airbag by airway, sprays into wet fermentor tank together with the biogas that another part then produces through compressor and biogas stirring pipe and one grade fermemtation;
7) until material in net cage complete degradable fermented after, the net cage more renewed by method that is artificial or mechanical hoisting.
9. quaternity biogas fermentation method as claimed in claim 8, is characterized in that, carrying out described step 5) time, a part of feed liquid is injected wet fermentor tank through pump and hydraulic mixing pipe, to ensure that secondary wets stirring of feed liquid in fermentor tank.
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| CN110079442A (en) * | 2018-01-26 | 2019-08-02 | 华强中天流体设备（北京）有限公司 | Small miniature peasant household's efficient methane fermentation system |
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| CN101265446A (en) * | 2007-03-12 | 2008-09-17 | 季忠铁 | Dry and wet dual-purpose stem pressing glass reinforced plastics biomass pool, producing method and facility thereof |
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