CN102921700B - Distillate spirit vinasse spot comprehensive utilization method - Google Patents
Distillate spirit vinasse spot comprehensive utilization method Download PDFInfo
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- CN102921700B CN102921700B CN201210429344.5A CN201210429344A CN102921700B CN 102921700 B CN102921700 B CN 102921700B CN 201210429344 A CN201210429344 A CN 201210429344A CN 102921700 B CN102921700 B CN 102921700B
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- 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
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- 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
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Abstract
The invention relates to a distillate spirit vinasse spot comprehensive utilization method. Distillate spirit vinasse is fed into an anaerobic digestor, anaerobic microorganisms are used for conducting fermentation treatment, degradable organisms are converted to biogas, the biogas serves as fuel of a boiler and a multiply combined cooling heating and power system and is purified to natural gas, a biogas fluid is subjected to solid-liquid separation, the biogas fluid and a biogas residue are obtained, the biogas fluid is refluxed and serves as an anaerobic digestor germ, redundant biogas fluid is discharged into a spirit factory sewage disposal system or serves as liquid fertilizer, the dried biogas residue serves as the fuel of the boiler, the produced steam is used for production, rice hull ash is used for agricultural production or production of other high value-added products, and the biogas residue can be processed to organic fertilizer and is used for agricultural production. By the aid of the method, the distillate spirit vinasse can be subjected to spot treatment in the spirit factory, raw materials cannot be transported for a long distance, water and chemical medicines are not required to be added during the production and treatment process, products can be applied in the spirit factory completely and are not affected by seasons and market requirements, and the system energy utilization efficient is high.
Description
Technical field
The present invention relates to distillers ' grains processing technology field, particularly relate to a kind of distillers ' grains in-site comprehensive Application way.
Background technology
China's white wine adopts solid state fermentation and solid state distillation production technology, is brewing method unique in the world.Distillers ' grains is the accessory substance produced in brewed spirit production process, and generation is comparatively large, and main component is residue after water, rice husk and grain ferment, and volatile organic content is high, in acid, easily corrupt, is used for animal and fowl fodder or direct burning disposal at present.Because in vinasse, rice husk content is high, feed quality is poor, and livestock and poultry cultivation is subject to market and seasonal effect, brings unstability to vinasse process.Vinasse are not as processed in time, and outdoor accumulation deposit is easily corrupt smelly, affects environmental sanitation, could deposit for a long time after only having oven dry.But grain fermentation residues toughness in vinasse, and rice husk mixes, not easily separated, be easy to caking, difficult oven dry, and grain fermentation residues is containing the small molecule volatile organic matter of higher concentration, these two factors affect firing efficiencies, be difficult to burn thoroughly, body of heater needs particular design.Domestic scholars has done more research for the utilization of distillers ' grains, proposes some disposal and utilization methods.
CN 101709006A discloses a kind of method for the treatment of solid organic wastes by biological method, the method adopting interpolation bacterial classification, enzyme and auxiliary material to carry out aerobic fermentation obtains fertilizer, achieve recycling and minimizing of distillers ' grains waste resource, the microorganism of employing is safe from harm to people and ecological environment.But the production of fertilizer and store and all need larger floor space, sell exist seasonal and regional, by brewery's periphery agricultural production custom and ambient influnence larger.
CN 101491290A discloses a kind of method utilizing vinasse to produce livestock birds health cultivation feed addictive, adopt the packing of vinasse batch mixings, medium sterilization, liquid spawn making, inoculation fermentation, drying pulverize 5 steps, obtain high protein additive, the higher value application for brewing industry waste residue provides a new way.Although protein feeds additive price is higher, production cost is also higher, and needs larger market digestion.
CN 101992202A relates to the processing method of biomass process residues, by the heat drying such as distillers ' grains, bagasse, charing, activation, obtains Si/C base functional material, of many uses.Distillers ' grains moisture content is high, and convection drying power consumption is higher, and functional material production and sales are difficult to, in same place, affect marketing.
CN 102643872A relates to the distillers ' grains method of comprehensive utilization based on biotechnology, be separated through poor slag, minimal medium is cultivated, carry out one-stage hydrolysis, secondary hydrolysis, synchronous continuous conversion fermentation more successively, resin anion (R.A.) absorption, reduced pressure concentration, dehydration, drying obtain succinic acid, recycling produced the poor slag of succinic acid through adding carbon source, regulating pH, inoculation geotrichum candidum liquid carries out solid-state aerobic fermentation cultivation, then carry out being separated, dry, pulverize and obtain animal feeding-stuff containing somatic protein, improve the use value of vinasse.The production process of succinic acid is longer, and cost is higher, and the poor slag main component extracted after succinic acid is rice husk, and the protein feeds inferior quality that regenerative ratio obtains, is difficult to expand market access.
CN 101565187A discloses a kind of aroma type spirit distiller grain method of comprehensive utilization, white wine is lost groove and carries out Mechanical Crushing, dries, mills, sieves, and rice husk is used for fuel, and screenings prepares feed.It is few that the method has equipment investment, and production cost is low, and feeding quality is good, and combusting rice hull rate is high, and rice hull ash steady quality can fully utilize aroma type spirit distiller grain preferably.But the quality of white carbon and feed and market determine that the method success is applied.
CN 102602940A relates to a kind of method fully utilizing distillers ' grains production high-performance white carbon and succinic acid, take distillers ' grains as raw material, is separated by poor slag after washing with rice husk; Get poor slag and carry out press filtration, then carry out pneumatic conveying drying, pulverized 80 ~ 100 orders, and fermented with Actinobacillus succinogenes, then press filtration, then activated carbon decolorizing, extraction obtains succinic acid; Get the rice husk after separation, through burning, rice hull ash carried out pulverizing 80 ~ 100 mesh sieves, pickling, filter, alkali is molten, suction filtration, adds chelating agent slaking, ageing, and washing, spraying dry obtains high-performance white carbon.The products such as high-performance White Carbon black, succinic acid are developed in this invention, but need more water, acid, alkali and heat in production process, have potential impact to environment.
CN 102660447A discloses a kind of wine brewing waste material integrated treatment and resource recycling method.This invention adopts energy-saving boiling system to carry out wine brewing distillation, produces waste water and useless grain in wine brewing distillation.The method needs to process respectively waste water and useless grain, and useless grain needs to carry out being separated of useless poor shell thing and mixed liquor, then processed waste water and mixed liquor are carried out fermentation process.The processing method of this invention is complicated, and waste water grain of giving up needs to process respectively, and the cycle is long, and cost is high.
Above Application way can not original position efficiency utilization, although the value of product is higher, consumes water, medicament and heat more, produces do not associate with brewery, affects marketing and applies.
Summary of the invention
The object of the present invention is to provide a kind of distillers ' grains in-site comprehensive Application way.
For reaching this object, the present invention by the following technical solutions:
A kind of distillers ' grains in-site comprehensive Application way, said method comprising the steps of:
1) alternatively, first distillers ' grains is transported to methane station;
2) distillers ' grains is imported anaerobic digestor, utilize anaerobe to carry out anaerobic fermentation process, labile organic compound is converted into biogas;
3) biogas is used as boiler or cool and thermal power multi-generation system fuel; Anaerobic fermented liquid, after Separation of Solid and Liquid, obtains fermented liquid and residue;
4) liquid backflow in natural pond uses as anaerobic digestor bacterial classification, and redundance enters brewery's sewage disposal system or is used as liquid fertilizer;
5) natural pond slag dry after be used as boiler oil, produce steam for the production of; Or natural pond slag is directly processed into fertilizer and is used for agricultural production.
Distillers ' grains is after anaerobic fermentation, and wherein the rice husk of high-load generally can not be degradable.Containing not degrading rice husk completely in natural pond slag described in step 5) of the present invention, the rice hull ash that natural pond slag produces after boiler oil burning is used for agricultural production or produces high value added product.
" high value added product " of the present invention refers to less investment, the product that output is many, function value is more proper.The main component of rice hull ash is silicon and carbon, and the product utilizing rice hull ash to develop has sodium metasilicate, silica, silicate, active carbon etc.Rice hull ash also can be used as produces aerosil, cement, chemical fertilizer, and the raw material of the products such as toothpaste, market demand is very large.In the present invention, those skilled in the art can utilize rice hull ash to produce high value added product, as white carbon, active carbon, protein feeds etc.
Step 1) of the present invention keeps the temperature of distillers ' grains at 50 ~ 60 DEG C or 30 ~ 40 DEG C in transport process, or after methane station, adjust the temperature to 50 ~ 60 DEG C or 30 ~ 40 DEG C.Before entering anaerobic digestor, the temperature of distillers ' grains is adjusted to anaerobic ferment process temperature close as far as possible, so that the heat saved required for the adjustment of vinasse temperature or cold, and temperature regulation system investment can be reduced.
The distillers ' grains being transported to methane station is imported size-mixing tank, and the natural pond liquid combined inoculation with backflow, adjusts the temperature to 30 ~ 60 DEG C, then imports anaerobic digestor.
Step 2 of the present invention) described anaerobic fermentation carries out under normal temperature, middle temperature or hot conditions, preferred high-temperature anaerobic fermentation.Normal temperature of the present invention, middle temperature or high-temperature anaerobic fermentation, all can be carried out according to routine operation by those skilled in the art.Preferably, described middle temperature is 30 ~ 40 DEG C, such as 30.2 ~ 38.6 DEG C, and 33 ~ 37.5 DEG C, 34.5 ~ 35.5 DEG C etc., described high temperature is 50 ~ 60 DEG C, such as 50.1 ~ 59.6 DEG C, 53 ~ 58 DEG C, 54.2 ~ 56 DEG C etc., all can be used for implementing the present invention.
Anaerobic fermentation of the present invention adopts liquid or solid state fermentation, preferred liquid state fermentation.
Preferably, the solid concentration <15% of liquid state fermentation, such as 5.5%, 7%, 8.6%, 10%, 12.2%, 13.6%, 14.9% etc., further preferably 8 ~ 12%.
Preferably, solid concentration >=15% of solid state fermentation, such as 15.2%, 18%, 19.6%, 22%, 26.2% etc.
Anaerobic fermentation of the present invention adopts single-stage or multistage anaerobic zymotechnique, further preferred single-stage, two-stage or three grades of anaerobic ferment process, most preferably two-stage anaerobic zymotechnique.
Step 3) of the present invention by biogas through dehydration, after desulfurization preliminary purification process, as boiler or cool and thermal power multi-generation system fuel.
Preferably, described preliminary purification is treated to nature cooled dehydrated and the desulfurization of dry oxidation iron.Described natural cooled dehydrated refers to that utilizing environment temperature high temperature biogas to be cooled to steam dew point produces condensate water, makes biogas partial dehydration.
The biogas of preliminary purification, again through carbonization treatment, obtains bio-natural gas, is incorporated to gas distributing system or compressed obtained compressed natural gas used as vehicle fuel sale; Preferably, described carbonization treatment is undertaken by Physical Absorption method.
Separation of Solid and Liquid described in step 3) adopts subsider, autoclave diaphragm filter press, plate and frame filter press, centrifugal dehydrator or rotary drum vacuum filter to carry out.Those skilled in the art can know other can be used for anaerobic fermented liquid Separation of Solid and Liquid to obtain fermented liquid and residue, and do not change natural pond liquid, the solid-liquid separating equipment of natural pond slag intrinsic property all can be used for the present invention, as solid-liquid separating machine etc.
A kind of distillers ' grains in-site comprehensive Application way, process conditions comprise the following steps after optimizing:
1) distillers ' grains is transported to methane station through vehicle or belt conveyor, keeps the temperature of vinasse at 50 ~ 60 DEG C or 30 ~ 40 DEG C, or after methane station, adjust the temperature to 50 ~ 60 DEG C or 30 ~ 40 DEG C in transport process;
2) distillers ' grains is imported anaerobic digestor, utilize anaerobe to carry out anaerobic fermentation process, labile organic compound is converted into biogas;
Described anaerobic fermentation carries out under normal temperature, middle temperature or hot conditions, preferred high-temperature anaerobic fermentation; Described middle temperature is 30 ~ 40 DEG C, and described high temperature is 50 ~ 60 DEG C; Anaerobic fermentation adopts liquid or solid state fermentation, preferred liquid state fermentation; Anaerobic fermentation adopts single-stage or multi-stage process, preferred two-stage anaerobic zymotechnique;
3) biogas is after dehydration, desulfurization preliminary purification process, as boiler or cool and thermal power multi-generation system fuel, produces electricity, steam, hot water, water at low temperature, the office of supply plant area and production and application;
4) through the biogas of preliminary purification again through carbonization treatment, obtain bio-natural gas, be incorporated to gas distributing system or compressed obtained compressed natural gas used as vehicle fuel is sold;
5) anaerobic fermented liquid is through Separation of Solid and Liquid, obtains fermented liquid and residue, and liquid backflow in natural pond uses as anaerobic digestor bacterial classification, and redundance enters brewery's sewage disposal system or is used as liquid fertilizer;
6) the natural pond slag that Separation of Solid and Liquid obtains is used as boiler oil after utilizing boiler smoke or vapor portion to dry, produce steam for the production of; Containing not degrading rice husk completely in the slag of natural pond, the rice hull ash produced after burning is used for agricultural production or produces high value added product; Or natural pond slag is directly processed into fertilizer and is used for agricultural production.
In agricultural production season, containing higher nitrogen and phosphorus in wet rice husk, agricultural production can be directly used in.
Compared with prior art scheme, the present invention has following beneficial effect:
The present invention adopts anaerobic digestion process process distillers ' grains, and anaerobic microbial conversion labile organic compound is clean fuel-biogas under certain condition, need not be separated rice husk and the rear residue of grain fermentation in advance; The biogas that anaerobic fermentation produces can be used for boiler oil, cool and thermal power multiple-supplying, the obtained bio-natural gas of decarburization purification etc., can completely for brewery's internal pair production or office; Distillers ' grains is after anaerobic fermentation, and grain fermentation residues is transformed completely by microorganism, the rice husk comparatively cleaned after fermentation liquor Separation of Solid and Liquid, and rice husk can substitute fire coal after drying and make fuel, for production providing unit divides steam; Rice hull ash can be used for agricultural production or manufactures other products.
The method of the invention can make distillers ' grains treatment in situ in brewery, raw material does not need long distance transportation, production and processing procedure do not need to add water and chemical agent, product can digest application completely in brewery, not by affecting in season and the market demand, decrease brewery's fossil energy consumption, low-carbon environment-friendly, promote the sustainable development of wine brewing traditional industries.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is the process chart of the embodiment of the present invention 1;
Fig. 3 is the process chart of the embodiment of the present invention 2;
Fig. 4 is the process chart of the embodiment of the present invention 3.
The present invention is described in more detail below.But following example is only simple and easy example of the present invention, does not represent or limits the scope of the present invention, and interest field of the present invention is as the criterion with claims.
Detailed description of the invention
For better the present invention being described, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
As shown in Figure 1, first distillers ' grains is carried out Anaerobic Digestion, labile organic compound is converted into biogas; Utilize after the process of biogas primary purifying as fuel etc.; The anaerobic fermented liquid that anaerobic digestion obtains is after Separation of Solid and Liquid, and liquid backflow in natural pond uses as the bacterial classification of anaerobic fermentation, and redundance enters brewery's sewage disposal system or is used as liquid fertilizer; Natural pond slag (main component is rice husk) dry after as boiler oil, produce steam for the production of, the rice hull ash produced after burning is used for agricultural production or produce other high value added products, as white carbon, active carbon, protein feeds etc.
Such as, by rice hull ash heating, under the condition of pressurizeing with soda bath water generation reaction glass; In caustic soda and rice hull ash while contained silicon dioxde reaction, charcoal is activated, and the effect of steam also can make the micropore of charcoal increase, thus reaches the object of activation, can obtain waterglass and active carbon two kinds of products after filter residue, filtrate separation.
Rice hull ash is the cheap raw material of waterglass processed, and the filter residue after silica removal is again the good raw material manufacturing active carbon.The semi-finished product of waterglass not only can white carbon processed, also can the chemical industry series of products such as sodium type A zeolite processed, silica gel and Ludox.Whole production process is not almost equally refuse, there is not problem of environmental pollution.
Embodiment 1
Certain distillery, produces aromatic Chinese spirit, and daily output distillers ' grains 200 tons, moisture content 65 ~ 70%, main component is rice husk and grain (rice, Chinese sorghum, wheat, mung bean, glutinous rice etc.) fermentation residues, builds comprehensive utilization device, treatment in situ in brewery.Treatment process as shown in Figure 2.
1) distillers ' grains delivers to methane station through belt conveyor, after belt balance weighing metering, pour feed bin into;
2) deliver to size-mixing tank with utilizing the Shaftless screw conveyor quantitative and even of feed bin afterbody, with the natural pond liquid refluxed in this combined inoculation, utilize multi-generation system hot water or cold water to adjust the temperature to 56 DEG C, then utilize screw pump or impeller pump to be promoted to anaerobic digestor I; Described multi-generation system can by the biogas of follow-up generation as supply fuel;
3) in anaerobic digestor I, solid concentration remains on 8 ~ 12%, and temperature controls at 55 ± 1 DEG C, adopts mixer to stir, carries out high-temperature liquid state fermentation; Labile organic compound in material under anaerobic, under the priority effect of acidogenic bactria and methane bacteria, through the digestion gas (biogas) of to be methane and carbon dioxide be acid digestion stage and alkaline digest stage decomposition primary product, the biogas that digestion produces recycled, economize energy can be reached, reduce the object of operating cost; Material stops 5 days in anaerobic digestor I, and gravity flow enters anaerobic digestor II, and the biogas of generation enters cleaning system after preliminary hydro-extraction;
4) anaerobic fermented liquid produced in anaerobic digestor I is from flowing in anaerobic digestor II, and in anaerobic digestor II, solid concentration remains on 8 ~ 12%, and temperature controls at 55 ± 1 DEG C, adopts mixer to stir, carries out high-temperature liquid state fermentation; Material stops 20 days in anaerobic digestor II, and the biogas of generation together enters cleaning system with the biogas that produces in anaerobic digestor I after preliminary hydro-extraction;
5) anaerobic digestor I and the raw biogas about 24000 cubes of II common property every day, after the cooling driers dehydration and dry oxidation iron desulfurization preliminary purification process of cleaning system, deliver to multi-generation system, the generating of supply gas internal-combustion engine, produce for office and brewery, the fume afterheat produced produces steam supply by waste heat boiler and produces, and jacket water waste heat is used for insulation and the lithium bromide chiller refrigeration of anaerobic fermentation tank;
6) anaerobic fermented liquid that two-stage anaerobic digestion tank produces enters solid-liquid separating machine from anaerobic digestor II gravity flow, after carrying out Separation of Solid and Liquid, obtains natural pond slag and the natural pond liquid of moisture content about 70%; Natural pond liquid is kept at natural pond liquid pool, for being back to size-mixing tank inoculation, drains into plant area's sewage disposal system outside the liquid of unnecessary natural pond;
7) the natural pond slag that obtains of Separation of Solid and Liquid, utilizes brewery's boiler smoke to be dried to moisture content about 20%, mixes burning with fire coal, can produce steam about 100 tons every day, for the production of, decrease coal-fired consumption; The rice hull ash produced after burning can be used for producing the high value added products such as white carbon.
This system achieves organic waste comprehensive utilization in brewery, and reduced investment, instant effect, has extraordinary economic benefit and environmental benefit.
Embodiment 2
Certain distillery, produces aromatic Chinese spirit, and daily output distillers ' grains 400 tons, moisture content 65 ~ 70%, main component is rice husk and grain (rice, Chinese sorghum, wheat, mung bean, glutinous rice etc.) fermentation residues, builds comprehensive utilization device, treatment in situ in brewery.Treatment process as shown in Figure 3.
1) distillers ' grains delivers to methane station through dumper, after belt balance weighing metering, pour feed bin into;
2) deliver to size-mixing tank with utilizing the Shaftless screw conveyor quantitative and even of feed bin afterbody, with the natural pond liquid refluxed in this combined inoculation, utilize multi-generation system hot water or cold water to adjust the temperature to 40 DEG C, then utilize submersible sewage pump or impeller pump to be promoted to anaerobic digestor I; Described multi-generation system can by the biogas of follow-up generation as supply fuel;
3) in anaerobic digestor I, solid concentration remains on 8 ~ 10%, and temperature controls at 38 ± 1 DEG C, adopts compressed biogas to stir, carries out middle temperature liquid state fermentation; Labile organic compound in material under anaerobic, under the priority effect of acidogenic bactria and methane bacteria, through the digestion gas (biogas) of to be methane and carbon dioxide be acid digestion stage and alkaline digest stage decomposition primary product, the biogas that digestion produces recycled, economize energy can be reached, reduce the object of operating cost; Material stops 20 days at this, and gravity flow enters anaerobic digestor II, and the biogas of generation enters cleaning system after preliminary hydro-extraction;
4) anaerobic fermented liquid produced in anaerobic digestor I is from flowing in anaerobic digestor II, and in anaerobic digestor II, solid concentration remains on 8 ~ 10%, and temperature controls at 38 ± 1 DEG C, adopts compressed biogas to stir, carries out middle temperature liquid state fermentation; Material stops 20 days at this, and the biogas of generation together enters cleaning system with the biogas that produces in anaerobic digestor I after preliminary hydro-extraction;
5) anaerobic digestor I and raw biogas about 44000 side of II common property every day, store at gas holder after the cooling driers dehydration and dry oxidation iron desulfurization preliminary purification process of cleaning system, a part delivers to multi-generation system, the generating of supply gas internal-combustion engine, for office and liquor production, the fume afterheat produced produces steam supply by waste heat boiler and produces, and jacket water waste heat is used for insulation and the lithium bromide chiller refrigeration of anaerobic fermentation tank; Another part biogas utilizes Physical Absorption method to carry out decarburization purification processes after pressurization, and after obtaining bio-natural gas, more compressed obtained compressed natural gas used as vehicle fuel (CNG) supplies refueling;
6) anaerobic fermented liquid that two-stage anaerobic digestion tank produces aspirates press filtration by screw pump from anaerobic digestor II, carries out Separation of Solid and Liquid, obtain natural pond slag and the natural pond liquid of moisture content about 50% by autoclave diaphragm chamber-type press filter; Natural pond liquid is kept at natural pond liquid pool, for being back to size-mixing tank inoculation, drains into plant area's sewage disposal system outside the liquid of unnecessary natural pond;
7) the natural pond slag that obtains of Separation of Solid and Liquid, directly delivers to brewery's boiler and fire coal mixes burning, produces steam 200 tons every day, for the production of, greatly reduce fossil energy consumption; The rice hull ash produced after burning can be used for producing fertilizer.
This system achieves organic waste comprehensive utilization in brewery, and biogas obtains CNG through purification, improves by-product value, makes whole Project Economy Benefit more remarkable.
Embodiment 3
Certain distillery, produces aromatic Chinese spirit, and daily output distillers ' grains 600 tons, moisture content 65 ~ 70%, main component is rice husk and grain (rice, Chinese sorghum, wheat, mung bean, glutinous rice etc.) fermentation residues, builds comprehensive utilization device, treatment in situ in brewery.Treatment process as shown in Figure 4.
Wherein, in size-mixing tank, 60 DEG C are adjusted the temperature to; In anaerobic digestor I, solid concentration remains on 15 ~ 25%, and temperature controls, at 58 ± 1 DEG C, to carry out high-temperature solid fermentation; In anaerobic digestor II, solid concentration remains on 6 ~ 12%, and temperature controls, at 55 ± 1 DEG C, to carry out high-temperature solid fermentation.
Anaerobic digester system daily output biogas about 70000 side, not treated direct supply coal-burning boiler is combustion-supporting, produces steam; Natural pond slag utilizes biomass boiler to burn and produces steam about 300 tons/day, and comparatively pure rice hull ash is used for selling.This system is comparatively simple, invests lower, easy and simple to handle, achieves organic waste comprehensive utilization in brewery.
Embodiment 4
Certain distillery, produces aromatic Chinese spirit, and daily output distillers ' grains 500 tons, moisture content 65 ~ 70%, main component is rice husk and grain (rice, Chinese sorghum, wheat, mung bean, glutinous rice etc.) fermentation residues, builds comprehensive utilization device, treatment in situ in brewery.
Wherein, in size-mixing tank, 56 DEG C are adjusted the temperature to; In anaerobic digestor I, solid concentration remains on 6 ~ 14.8%, and temperature controls, at 55 ± 1 DEG C, to carry out high-temperature liquid state fermentation; In anaerobic digestor II, solid concentration remains on 6 ~ 14.8%, and temperature controls at 38 ± 1 DEG C, carries out middle temperature liquid state fermentation.
Anaerobic digester system daily output biogas about 60000 side, not treated direct supply coal-burning boiler is combustion-supporting, produces steam; Natural pond slag is directly processed into fertilizer for agricultural production.This system is comparatively simple, invests lower, easy and simple to handle, achieves organic waste comprehensive utilization in brewery.
Applicant states, the present invention illustrates technological process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned processing step, does not namely mean that the present invention must rely on above-mentioned processing step and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of raw material selected by the present invention, all drops within protection scope of the present invention and open scope.
Claims (20)
1. a distillers ' grains in-site comprehensive Application way, is characterized in that, said method comprising the steps of:
1) distillers ' grains is transported to methane station;
2) distillers ' grains is imported anaerobic digestor, utilize anaerobe to carry out anaerobic fermentation process, labile organic compound is converted into biogas;
3) biogas is used as cool and thermal power multi-generation system fuel; Anaerobic fermented liquid, after Separation of Solid and Liquid, obtains fermented liquid and residue;
4) liquid backflow in natural pond uses as anaerobic digestor bacterial classification, and redundance enters brewery's sewage disposal system;
5) natural pond slag dry after be used as boiler oil, produce steam for the production of; Containing not degrading rice husk completely in the slag of described natural pond, the rice hull ash that natural pond slag produces after boiler oil burning is used for agricultural production or produces high value added product.
2. the method for claim 1, is characterized in that, described step 1) in transport process, keep the temperature of distillers ' grains at 50 ~ 60 DEG C or 30 ~ 40 DEG C.
3. the method for claim 1, is characterized in that, adjusts the temperature to 50 ~ 60 DEG C or 30 ~ 40 DEG C after methane station.
4. the method for claim 1, is characterized in that, the distillers ' grains being transported to methane station is imported size-mixing tank, and the natural pond liquid combined inoculation with backflow, adjusts the temperature to 30 ~ 60 DEG C, then import anaerobic digestor.
5. the method as described in one of claim 1-3, is characterized in that, step 2) described anaerobic fermentation carries out under normal temperature, middle temperature or hot conditions.
6. method as claimed in claim 5, is characterized in that, step 2) described anaerobic fermentation is high-temperature anaerobic fermentation.
7. method as claimed in claim 5, it is characterized in that, described middle temperature is 30 ~ 40 DEG C, and described high temperature is 50 ~ 60 DEG C.
8. the method as described in one of claim 1-4, is characterized in that, described anaerobic fermentation adopts liquid or solid state fermentation.
9. method as claimed in claim 8, it is characterized in that, described anaerobic fermentation is liquid state fermentation.
10. method as claimed in claim 8, is characterized in that, the solid concentration <15% of liquid state fermentation.
11. methods as claimed in claim 10, is characterized in that, the solid concentration of liquid state fermentation is 6 ~ 12%.
12. methods as claimed in claim 8, is characterized in that, solid concentration >=15% of solid state fermentation.
13. methods as described in one of claim 1-4, is characterized in that, described anaerobic fermentation adopts single-stage or multistage anaerobic zymotechnique.
14. methods as claimed in claim 13, is characterized in that, described anaerobic fermentation is single-stage, two-stage or three grades of anaerobic ferment process.
15. methods as claimed in claim 14, it is characterized in that, described anaerobic fermentation is two-stage anaerobic zymotechnique.
16. methods as described in one of claim 1-4, is characterized in that, described step 3) by biogas after dehydration, desulfurization preliminary purification process, as cool and thermal power multi-generation system fuel.
17. methods as claimed in claim 16, is characterized in that, described preliminary purification is treated to nature cooled dehydrated and the desulfurization of dry oxidation iron.
18. methods as described in one of claim 1-4, it is characterized in that, the biogas of preliminary purification, again through carbonization treatment, obtains bio-natural gas, is incorporated to gas distributing system or compressed obtained compressed natural gas used as vehicle fuel is sold.
19. methods as described in one of claim 1-4, is characterized in that, step 3) described Separation of Solid and Liquid adopts autoclave diaphragm filter press, plate and frame filter press or centrifugal dehydrator to carry out.
20. methods as described in one of claim 1-4, is characterized in that, said method comprising the steps of:
1) distillers ' grains is transported to methane station through vehicle or belt conveyor, keeps the temperature of vinasse at 50 ~ 60 DEG C or 30 ~ 40 DEG C, or after methane station, adjust the temperature to 50 ~ 60 DEG C or 30 ~ 40 DEG C in transport process;
2) distillers ' grains is imported anaerobic digestor, utilize anaerobe to carry out anaerobic fermentation process, labile organic compound is converted into biogas;
Described anaerobic fermentation carries out under normal temperature, middle temperature or hot conditions; Described middle temperature is 30 ~ 40 DEG C, and described high temperature is 50 ~ 60 DEG C; Anaerobic fermentation adopts liquid or solid state fermentation; Anaerobic fermentation adopts single-stage or multi-stage process;
3) biogas is after dehydration, desulfurization preliminary purification process, as cool and thermal power multi-generation system fuel, produces electricity, steam, hot water, water at low temperature, the office of supply plant area and production and application;
4) through the biogas of preliminary purification again through carbonization treatment, obtain bio-natural gas, be incorporated to gas distributing system or compressed obtained compressed natural gas used as vehicle fuel is sold;
5) anaerobic fermented liquid is through Separation of Solid and Liquid, obtains fermented liquid and residue, and liquid backflow in natural pond uses as anaerobic digestor bacterial classification, and redundance enters brewery's sewage disposal system;
6) the natural pond slag that Separation of Solid and Liquid obtains is used as boiler oil after utilizing boiler smoke or vapor portion to dry, produce steam for the production of, containing not degrading rice husk completely in the slag of natural pond, the rice hull ash produced after burning is used for agricultural production or produces high value added product.
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