CN107574115A - A kind of industrial bio matter biogas project application system - Google Patents
A kind of industrial bio matter biogas project application system Download PDFInfo
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- CN107574115A CN107574115A CN201710829175.7A CN201710829175A CN107574115A CN 107574115 A CN107574115 A CN 107574115A CN 201710829175 A CN201710829175 A CN 201710829175A CN 107574115 A CN107574115 A CN 107574115A
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- biogas
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- 238000000855 fermentation Methods 0.000 claims abstract description 41
- 230000004151 fermentation Effects 0.000 claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 17
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 13
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000010902 straw Substances 0.000 claims abstract description 10
- 230000023556 desulfurization Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000007062 hydrolysis Effects 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 230000018044 dehydration Effects 0.000 claims abstract description 4
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 230000020477 pH reduction Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 21
- 239000003895 organic fertilizer Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 14
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 12
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002361 compost Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 241000605118 Thiobacillus Species 0.000 claims description 3
- 241000190807 Thiothrix Species 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 235000013599 spices Nutrition 0.000 claims description 3
- 235000013619 trace mineral Nutrition 0.000 claims description 3
- 239000011573 trace mineral Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000004060 metabolic process Effects 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims description 2
- 238000009264 composting Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 239000001913 cellulose Substances 0.000 abstract description 4
- 229920002678 cellulose Polymers 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 13
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004310 lactic acid Substances 0.000 description 4
- 235000014655 lactic acid Nutrition 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 150000003463 sulfur Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004460 silage Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XOSXWYQMOYSSKB-LDKJGXKFSA-L water blue Chemical compound CC1=CC(/C(\C(C=C2)=CC=C2NC(C=C2)=CC=C2S([O-])(=O)=O)=C(\C=C2)/C=C/C\2=N\C(C=C2)=CC=C2S([O-])(=O)=O)=CC(S(O)(=O)=O)=C1N.[Na+].[Na+] XOSXWYQMOYSSKB-LDKJGXKFSA-L 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of industrial bio matter biogas project application system, including pulverizer, after the stalk of buying is crushed, measured by the pulverizer in proportion, stalk is transported into storage pool and is compacted, seals, Anaerobic Treatment；Stalk after storage pool processing is sent to hydrolytic decomposition pot by the homogeneous charge system of connection, by pumping, in the hydrolytic decomposition pot to stalk hydrolysis acidification after, squeeze into fermentation tank；Stalk is fermented in the fermentation tank and desulfurization process, after anaerobic fermentation, a part of preprocessed system of biogas caused by fermentation carries out entering methane power generating system after biological desulphurization, dehydration, cooling, removal of impurities, supercharging.The present invention has biogas yield and straw utilization rate high, fermentation process cellulose is easily decomposed, and biogas residue is cleared up automatically, and desulphurization cost is low, desulfurized effect is good, and do not need catalyst, be not required to handle chemical sludge, produce seldom biological sludge, power consumption is low, removal efficiency is high, desulfuration efficiency is stable.
Description
Technical field
The invention belongs to biomass energy field, more particularly to stalk co-production technology, more particularly to a kind of industrial bio
Matter biogas project application system.
Background technology
With the continuous development of economic society, the whole world constantly increases to the demand of the energy, and traditional fossil energy largely consumes
Caused energy shortage, environmental pollution and weather variation issue is becoming increasingly acute, and biomass energy is as a kind of regenerative resource
Increasingly paid attention to by national governments and scientist.Stalk is a kind of good clean reproducible energy, is that most exploitation is sharp
One of new energy with potentiality, there is preferably economic, ecology and social benefit.Stalk has a variety of development and utilization measures, stalk
Returning to the field, gasifying stalk, straw power generation, alcohol production by stalk etc..China is the yield big country of stalk, and annual stalk yield has 7
Hundred million tons, but now using doing only the 50% of the energy, and most of is urban residents by way of inefficient combustion.Cause
This comprehensive utilization ratio by improving stalk, the high quality conversion for accelerating stalk are imperative.
For the existing organic matter stalk in rural area villages and small towns, the unordered discarding of feces of livestock and poultry, organic waste and it is rudimentary utilize show
Shape, " biogas-electric power-organic fertilizer-heat is developed for the revolutionary ecology for improving rural residence environment（It is cold）Four alliances "
Non-fossil energy supply pattern, the development of rural area plant and aquaculture can be effectively promoted, promote growth of agricultural efficiency and increasing peasant income,
Rural area modern agriculture, clean energy resource, human settlement, the ecological circulation of betterment of land interaction mutual assistance are realized, is the new agriculture of socialism
The important measure that village is built.The pattern has extensive adaptability to raw material, can use yellow stalk, blue or green stalk, other greens
Fibre plant, cattle and sheep cultivation excrement, food wastes and feces of livestock and poultry are main material production biogas.Meanwhile the pattern is certainly
By flexible, the adjustment of the size of capacity, corollary new can be carried out according to target community's population of raw material resources situation and place small towns
Countryside Community Construction, construction scale are stalk marsh gas distributed energy devices of the daily output 500Nm3 up to 50000Nm3/ days,
Can meet 5000-80000 people with gas, electricity consumption, with colod-application heat demand, and provide organic fertilizer for farmland, realize beautiful township
Village, clear water blue sky, rural energy revolution.
But biogas yield in the prior art be present and straw utilization rate is low, the time length of anaerobic fermentation, in fermentation, due to
Contain substantial amounts of cellulose in stalk, be difficult to thoroughly decompose in fermentation process, stalk still can in the biogas residue after use of fermenting
Chopped fiber is remained, these fibers can build up winding, float and produce caking, cause methane accumulation to be obstructed, and raw material availability is low, and
Caused biogas residue also results in tank for sewage gas blocking；Simultaneously biogas from anaerobic ferment devices output when, especially in mesophilic digestion and
During hot fermentation, substantial amounts of H2S is carried, due to also having substantial amounts of vapor to exist in biogas, water and the H2S in biogas are common
Effect, accelerates the corrosion and blocking of metallic conduit, valve and flowmeter；In addition, SO2 is generated after H2S burnings, with combustion product
In vapor be combined into sulfuric acid, the metal surface of equipment is produced corrosion, and can also cause the pollution to atmospheric environment, shadow
Ring health.Therefore, solving the above problems becomes the brainstorm subject of prior art.
The content of the invention
To solve drawbacks described above, it is an object of the invention to provide one kind to have biogas yield and straw utilization rate high, ferments
Process cellulose is easily decomposed, and biogas residue is cleared up automatically, and desulphurization cost is low, desulfurized effect is good, and is not needed catalyst, is not required to handle
Chemical sludge, produce seldom biological sludge, the industrial bio matter biogas project that power consumption is low, removal efficiency is high, desulfuration efficiency is stable
Application system.
To reach above-mentioned purpose, the present invention proposes a kind of industrial bio matter biogas project application system, including pulverizer, institute
State after the stalk of buying crushes, measured by pulverizer in proportion, by conveyer by stalk be transported to storage pool be compacted, it is close
Envelope, Anaerobic Treatment；Stalk after storage pool processing is sent to hydrolytic decomposition pot by the homogeneous charge system of connection by pumping,
Submersible agitating is carried out in the hydrolytic decomposition pot to stalk, and intermittent aeration is carried out by roots blower, after hydrolysis acidification, then by pump
Squeeze into fermentation tank；Stalk is fermented in the fermentation tank and desulfurization process, after anaerobic fermentation, natural pond caused by fermentation
A part of preprocessed system of gas carries out entering methane power generating system after biological desulphurization, dehydration, cooling, removal of impurities, supercharging, utilizes
Electrical power generators, caused electric energy are incorporated to national grid system, village nearby are transported to through pipe network after remaining biogas supercharging, for occupying
People's gas for domestic use；Stalk after the fermentation is sent by pumping to solid-liquid separator unit and carries out separation of solid and liquid, the biogas slurry after separation
In biogas slurry pond after cooling tower cools, it is back to hydrolytic decomposition pot spice and continues to ferment, the biogas residue isolated transports organic fertilizer production to
Workshop, the biogas residue are sent into organic fertilizer production workshop with loading machine.
Further, the biogas residue by mixed stirring device and presses material composition coarse adjustment heap in organic fertilizer production workshop
Fertilizer moisture, carbon-nitrogen ratio, after mixing, banked up with pile shape, form compost finished product, the compost finished product is sieved, screenings root
It is respectively processed according to moisture height, after screenings is granulated, is sent into by the dryer of generator tail gas heat supply, is dried
It is dry, finished product is made after being stirred in proportion after addition trace element, is dispensed, storage is for sale.
Further, waste heat caused by generator heats for jacket water in the methane power generating system, is heated up for material
It is incubated with system, generator tail gas, which is used to be dried by organic fertilizer production shop material, to be used.
Further, the biogas slurry is circulated back in homogeneous charge system by biogas slurry, and stalk is stirred into aquation, is easy to straw
Stalk is got in hydrolytic decomposition pot by pump.
Further, described desulfurization process refers to the effect using microorganism, and a certain amount of air is passed through into positive/negative-pressure
The pipeline connected on protector is passed through in fermentation tank, is attached to gas bag puller strap, tank skin, the Thiothrix of liquid level, Thiobacillus
Microorganism absorbs hydrogen sulfide during metabolism, and they are converted into elemental sulfur, and then is converted into sulfuric acid, in micro- oxygen
Under the conditions of H2S is oxidized to the sweetening process of elemental sulfur or sulfurous acid.Processing procedure without any additive, required air by
Live compressor operation produces, and reaction equation is as follows：
2H2S + O2 →2H2O +2S
2H2S +3O2 →2H2SO3
This sulfur method widely uses in Europe, and some engineerings have used at home, and its advantage is：It need not be catalyzed
Agent, it is not required to handle chemical sludge, produces seldom biological sludge, power consumption is low, removal efficiency is high.Desulfuration efficiency is stable, H2S clearances
Up to more than 90%, desulphurization cost is low, and every cubic metre of biogas treatment expense is less than 0.03 yuan, and 70% is reduced than chemical desulfurization method cost
More than.When entering a number of oxygen in biogas, special aerobic thiophilic bacteria（Such as：Thiothrix or Thiobacillus
Category etc.）Hydrogen sulfide composition in biogas can be oxidized to element sulphur, and according to the difference of environmental condition, it is further aoxidized
Into sulfuric acid.It is this reaction need condition be：Oxygen, nutrient solution, temperature, humidity and growth district.
In summary, compared with prior art, the advantage of the invention is that：This project uses diphasic anaerobic leading in the world
Fermentation technique, is applicable to that the plurality of raw materials such as dry straw, ensiling stalks, cassava grain, furfural dregs are single or mixed fermentation, is equipped with out
It is adapted to the technology and equipment system of this technique, biogas yield and straw utilization rate occupy advanced international level, and storage pool process passes through
The anaerobic fermentation of lactic acid bacteria realizes the acidizing pretreatment of raw material, and biogas fermentation process realizes that production acid phase and methane phase stage are independent
Separate, by ensiling and the optimization of biogas fermentation procedure technology, realize more flora cooperative fermentations, greatly reduce anaerobic fermentation
Time, fermentation tank inner cellulose easily decomposed, and biogas residue and biogas slurry are extracted out in time, and solid-liquid separator unit carries out separation of solid and liquid, natural pond
Liquid recycling, biogas residue are made as organic fertilizer, and hot and cold, electric trilogy supply is realized in marsh gas power generation, can meet all electric needed for factory
Power and heat energy, do not consume fossil energy.Meanwhile using biological desulfurization, will under micro-oxygen conditions using the effect of microorganism
H2S is oxidized to the sweetening process of elemental sulfur or sulfurous acid.This sulfur method widely uses in Europe, at home some engineerings
It has been used that, its advantage is：Do not need catalyst, be not required to handle chemical sludge, produce seldom biological sludge, power consumption is low, removes
Efficiency high.Desulfuration efficiency is stable, and H2S clearances are up to more than 90%, and desulphurization cost is low, and every cubic metre of biogas treatment expense is less than
0.03 yuan, more than 70% is reduced than chemical desulfurization method cost, and is avoided due to also having substantial amounts of vapor to exist in biogas, water
With the H2S collective effects in biogas, corrosion and blocking to metallic conduit, valve and flowmeter.
Brief description of the drawings
Fig. 1 show industrial bio matter biogas project application system of the present invention composition figure substantially.
Embodiment
Shown in Figure 1, the present invention proposes a kind of industrial bio matter biogas project application system, the powder of straw of fresh harvesting
After broken, after pre-treatment, transport to stalk storage pool be compacted, sealed, Anaerobic Treatment, after the fermentation of 5-40 days or so,
The acidic materials such as certain lactic acid of accumulation in raw material.
Raw material is through homogeneous charge system（SC-FS-001）Enter hydrolytic decomposition pot（V0201、V0202）In, submersible agitating（AG-
HU-001/002）Realization continuously stirs, roots blower（AB-PCR1-001/002）Intermittent aeration is carried out, by the hydrolysis of 2 days
After acidifying, fermentation tank is squeezed into（V0203、V0204）In, after the anaerobic fermentation of 20 days or so, it is pumped to separation of solid and liquid（PSS-
CP-001）Unit carries out separation of solid and liquid, and the biogas slurry after separation is in biogas slurry pond（V0205）By cooling tower（CP -CP-001/002）
After cooling, hydrolytic decomposition pot is back to（V0201、V0202）Spice continues to ferment, and biogas residue transports organic fertilizer production workshop to.
A part of preprocessed system of biogas caused by fermentation carries out biological desulphurization（AB-PCR-003/004）, dehydration
（E0302）, cooling（E0308）, removal of impurities（V0301）, supercharging（C0303-0304）Enter methane power generating system, remaining natural pond afterwards
After gas supercharging（C0306-0307）Village nearby is transported to through pipe network, for Domestic Gas.Electric energy one caused by marsh gas power generation
Divide and be used to produce, remainder is incorporated to national grid.Generator waste heat is used for jacket water（E0308）Heating, for material heating and
System is incubated, and generator tail gas, which is used to be dried by organic fertilizer production shop material, to be used.
Biogas residue is sent into organic fertilizer production workshop with loading machine, is sent to mixed stirring device and by material composition coarse adjustment compost
Expect moisture, carbon-nitrogen ratio, after mixing, banked up with pile shape, after 15-20 days or so decomposed.Compost finished product is sieved
（M0408/M0420）, screenings according to moisture height be respectively processed.Screenings is granulated（M0414）Afterwards, it is sent into by sending out
The dryer of motor tail gas heat supply（E0417）, dried, stirred in proportion after addition trace element（M0410）Made after mixing
Into finished product, dispensed（M0423）, be put in storage for sale.
During the system operatio, comprise the following steps：
（1）It is prepared by raw material
Within the corn straw harvesting previous moon, pulverizer and transporting equipment etc. are overhauled, is purchased with spare part.Stalk storage pool is entered
Row cleaning sterilization.Harvesting-entrucking-transport.Metering weighs and checked that doping rehearses.Raw material is crushed, it is desirable to which raw material is grown
Degree is less than 20mm.Charging control water（60-70% is preferred）, extrude water breakthrough and do not drip.With forklift heap toward silage silo, compacting, plastics are used
Diaphragm seal, top gland weight, material is set to be in anaerobic state, by anaerobism lactic acid bacteria, aerobic bacteria and beneficial to fungi
Cooperative fermentation acts on, caused carbon dioxide, causes oxygen-free environment, and the lactic acid of secretion causes raw material in acidity（PH value 3.8-
4.4）.Ensiling raw material typically passes through the sealed fermenting of 40 days -50 days.
（2）Biogas production
Raw material is sent into material feeding box by forklift, the scraping machine dragging slow forwards transportation of stalk of bottom half, is set into solid-liquid mixing
It is standby（The liquid of mixed material comes from biogas slurry）, the material forwards transportation of flood dragon promotion mixing, it is delivered to hydrolytic tank through screw pump and enters
Water-filling solution.
Mixed material is heated to 36-38 DEG C in hydrolytic tank, and submersible agitating is realized and continuously stirred, and roots blower carries out interval
Property aeration, in hydrolytic decomposition pot after hydrolysis acidification two days later, past fermentation tank is made through pump.Hydrolysate from hydrolytic tank is being sent out
48 DEG C are heated in fermentation tank, the major axis agitator in fermentation tank carries out regular stirring.Stop 20 days or so, send out in fermentation tank
The material that ferment is completed is delivered to solid-liquid separation unit by pump, and caused biogas delivers to CHP.
Biogas slurry after separation of solid and liquid cools down into biogas slurry pond, is delivered to feeding-in solid body system by pump, eventually enters into hydrolytic tank, after
Supervention ferment.Biogas residue is transported into organic fertilizer production Workshop Production organic fertilizer.
（3）Cogeneration of heat and power
Open the total air inlet manually-operated gate of biogas, 2 inlet of Roots blower manually-operated gates；Long-press cooling driers power key, open cold dry
Machine, observe cooling driers working condition；Roots blower is opened, it is 25kPa that PID, which automatically adjusts biogas,；Open generating set import hand
Movable valve, observe pressure condition before and after pressure maintaining valve（25.15kPa）.Concentration regulation potentiometer is exported according to biogas concentration levels
Current regulation is to 5.5mA.（52.5% biogas concentration）.When biogas concentration is less than<5.5mA, when biogas concentration is big>5.5mA is (micro-
Adjust).
Controller display manual key is pressed, presses key（start）, engine start sound is listened attentively to, can be started
One Heat Fan；Engine peed stable observes engine cylinder tender feeling condition after 1500 turns, and highest cylinder temperature is not more than 690 DEG C, cylinder
When temperature increase is too fast, concentration regulation potentiometer, master cylinder tender feeling condition are slowly adjusted（8mA is arrived in the regulation of 52.5% concentration biogas）；It is pending
Motivation start finish it is working properly after, press grid-connected button（close）, engine enters auto-parallel program；Will be dense after grid-connected
Degree regulation potentiometer output current, which is adjusted to 5.5mA, (opens machine initial value）, treat that engine suture increases to initial assumed load
（6%, 30kw）Afterwards, press and add power button（Need to retain 2 seconds after pressing every time）, pressed again when question generator is close to setting power
Down plus power button.Target generation load is gradually increased to by that analogy.
（4）Organic fertilizer production
This project is using dispensing stirring, fermentation, ageing（It is decomposed）, be granulated, dry, pack technological process.
Biogas residue is sent into organic fertilizer production workshop with loading machine, is sent to mixed stirring device and by material composition coarse adjustment compost
Expect carbon-nitrogen ratio, after mixing, banked up with pile shape, turning is carried out within 2 days or so, with oar blade type turner, blade（Rotate it is tooth-like, can be just
Reversion）Cast material is turned in cutting, when turning over throwing material in groove can be moved rearwards, and keep the skin wet.Fermentation initial stage, through medium temperature, high temperature
Then reach the whole process that temperature is begun to decline, typically need 10-12 days.Material ferments by the first stage, some
Easily decompose and a large amount of difficult organic matters decomposed are present, it is necessary to which continuing fermentation is allowed to decomposed.Now constant temperature declines, when temperature is steady
I.e. up to decomposed when being scheduled on 35-40 DEG C or so, typically need 5-10 days.
Described above is only the embodiment of the application, it is noted that is the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (5)
1. a kind of industrial bio matter biogas project application system, including pulverizer, it is characterised in that：The pulverizer is by buying
Stalk crushes in proportion, measure after, stalk is transported to by storage pool by conveyer and is compacted, seals, Anaerobic Treatment；It is described
Stalk after storage pool processing is sent to hydrolytic decomposition pot by the homogeneous charge system of connection, by pumping, to straw in the hydrolytic decomposition pot
Stalk carries out submersible agitating, and carries out intermittent aeration by roots blower, after hydrolysis acidification, then is squeezed into fermentation tank by pump；Institute
State and stalk is fermented in fermentation tank and desulfurization process, after anaerobic fermentation, a biogas part is through pre- place caused by fermentation
Reason system carries out entering methane power generating system after biological desulphurization, dehydration, cooling, removal of impurities, supercharging, utilizes electrical power generators, production
Raw electric energy is incorporated to national grid system, village nearby is transported to through pipe network after remaining biogas supercharging, for Domestic Gas；Institute
State the stalk after fermentation and be sent by pumping to solid-liquid separator unit progress separation of solid and liquid, the biogas slurry after separation is in biogas slurry pond by cool
After water tower cooling, it is back to hydrolytic decomposition pot spice and continues to ferment, the biogas residue isolated transports organic fertilizer production workshop to, and the biogas residue is used
Loading machine is sent into organic fertilizer production workshop.
A kind of 2. industrial bio matter biogas project application system according to claim 1, it is characterised in that：The biogas residue exists
Organic fertilizer production workshop, by mixed stirring device and by material composition coarse adjustment composting moisture, carbon-nitrogen ratio, after mixing, with pile
Shape is banked up, and forms compost finished product, and the compost finished product is sieved, and screenings is respectively processed according to moisture height,
After screenings is granulated, it is sent into by the dryer of generator tail gas heat supply, is dried, is stirred in proportion after addition trace element mixed
Finished product is made after conjunction, is dispensed, storage is for sale.
A kind of 3. industrial bio matter biogas project application system according to claim 1, it is characterised in that：The biogas hair
In electric system waste heat caused by generator for jacket water heat, for material heating and system be incubated, generator tail gas be used for by
The drying of organic fertilizer production shop material uses.
A kind of 4. industrial bio matter biogas project application system according to claim 1, it is characterised in that：The biogas slurry is led to
Cross biogas slurry to be circulated back in homogeneous charge system, stalk is stirred into aquation, is easy to stalk to be got to by pump in hydrolytic decomposition pot.
A kind of 5. industrial bio matter biogas project application system according to claim 1, it is characterised in that：Described desulfurization
Processing refers to the effect using microorganism, and a certain amount of air is passed through into fermentation tank by the pipeline connected on positive/negative pressure protector
It is interior, it is attached to gas bag puller strap, tank skin, the Thiothrix of liquid level, Thiobacillus microorganism and is absorbed during metabolism
Hydrogen sulfide, and they are converted into elemental sulfur, and then sulfuric acid is converted into, H2S is oxidized to elemental sulfur or Asia under micro-oxygen conditions
The sweetening process of sulfuric acid.
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