CN102517200A - Organic waste dry anaerobic high-temperature fermentation system and fermentation process - Google Patents
Organic waste dry anaerobic high-temperature fermentation system and fermentation process Download PDFInfo
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/20—Degassing; Venting; Bubble traps
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- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
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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
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Abstract
The invention relates to an organic waste dry anaerobic high-temperature fermentation system and a fermentation process. The fermentation system comprises a feeding system (1), a dry anaerobic fermentation tank (2) with an agitating system (3), a heat preservation and heating system (4), a biogas slurry and biogas residue treatment system (5), an exhaust system (6) and a control system. The organic waste dry anaerobic high-temperature fermentation system and the fermentation process have the beneficial effects that harmless treatment, reduction treatment and resource treatment can be carried out on domestic organic wastes, so that the cyclic utilization of the wastes is realized; and moreover, the treatment efficiency is high, and the energy consumption and the treatment cost are low.
Description
Technical field
The present invention relates to processing technology field like organic wastes such as the organic moiety in the domestic refuse, rubbish from cooking, greening rubbish, agricultural crop straw, feces of livestock and poultry, septic tank bed mud, active sludge and Herba Eichhorniae, blue-green algaes.
Background technology
At present, the organic composition in China's domestic refuse is in continuous increase.Organic composition in China's domestic refuse is compared with developed countries, and very big difference is arranged, and the content of its paper is lower; The content of rubbish from cooking, greening rubbish etc. is higher; And the water ratio of rubbish from cooking is higher, and general water ratio is 70%～80%, and the water ratio of melon skin etc. can be up to more than 95%.Burn away the refuse to have and reclaim heat energy and waste reduction advantage the most completely, burn afterwards that the rubbish volume can reduce 80%～95%, yet organic waste moisture is high; Net thermal value is low; Suitable the burning, and burn easy " dioxin " type material that produces, cause serious environmental to pollute.Directly landfill waste can produce a large amount of landfill percolates again, handles the bad very easily polluted underground water and the surface water, and percolate is formed complicacy because of it, and concentration is high, and the cost of processing is also very big.Adopt the composting mode treating refuse, can make rubbish become fertilizer, but the fertilizer efficiency of this garbage tankage is low, sell limitedly, room for development is little.
Containing a large amount of moisture, glucide, fat and protein etc. in the organism, is the basic substance of carrying out a biological disposal upon.Anaerobically fermenting is that organism under anaerobic is consumed through the Metabolic activity of mikrobe, and the while is with the generation of methane and carbonic acid gas etc.Anaerobically fermenting is recycled biogas easily because of producing, so claim biogas fermentation again.Do not need oxygen supply in the anaerobic treatment process; Power consumption is low; The organism major part changes biogas into and can be used as bioenergy, and the innoxious degree of fermentation residue raffinate is good, and parasitic ovum and pathogenic micro-organism can be killed during the fermentation; Can become the higher fertilizer of fertilizer efficiency behind the organic matter fermentation, can also be made into novel biomass fuel with mud simultaneously---rod RDF.So anaerobically fermenting often is used as in the research of the ecological agriculture and practice and sets up that an important step is used in the benign cycle agroecosystem, receives increasing concern.
According to solid holdup (TS) difference, anaerobically fermenting is divided into two kinds of wet type (TS is 5%～15%) and dry types (TS is 15%～40%).The anaerobically fermenting engineering of having built up operation adopts the wet type fermentation more.Wet type anaerobic fermentation reactor volume is big, and factor of created gase is lower, and the dilution fermentation substrate is big with water consumption, has both increased the running cost of technology, again waste water resource.The dry-type anaerobic fermentation technology is compared with the wet type anaerobic ferment process as the New-type refuse vehicle biological treatment, and its organic loading is high, and sewage load is few, and the shared digestion reactor volume of unit rubbish is little, has very remarkable advantages.
Anaerobically fermenting can be divided into normal temperature fermentation (natural temperature), mesophilic digestion (30～40 ℃) and thermophilic fermentation (50～60 ℃) according to the temperature difference.The proportional relation of the temperature of anaerobically fermenting and gas production rate, gas production rate are to characterize the good and bad important parameter of anaerobically fermenting, and the essence that concerns between them is the digestion rate of fermentation substrate, and temperature is high more, and organic rate of decomposition is fast more.
Existing dry-type anaerobic fermentation technology adopts mesophilic digestion more, exists fermentation rate slow, and the organism rate of decomposition waits problem slowly.The technological required fermentation required equipment that ferments of the dry type high-temperature anaerobic fermentation of having developed at present is of a great variety, has increased the technology cost, and has been unfavorable for management maintenance, can not effectively be handled natural pond liquid, natural pond slag that fermentation is produced.Because high solid holdup material fluidity is poor in the fermentation system, the heat-transfer effect between the material is poor, is difficult to keep the constant of the interior temperature of charge of dry-type anaerobic fermentation jar and conducts heat evenly the input and output material difficulty.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; The system and the technology thereof of a kind of domestic organic garbage and feces of livestock and poultry, septic tank bed mud, active sludge combination treatment are provided; To improve processing efficiency; Cut down the consumption of energy and processing cost, prevent to cause secondary pollution, and the product that will ferment after separating is prepared into higher fertilizer of fertilizer efficiency and the required biogas energy of novel biomass fuel and society; Carry out innoxious, minimizing, the recycling treatment of domestic organic garbage, realize the recycle of rubbish.
The objective of the invention is to realize through following technical scheme.
A kind of organic waste dry-type anaerobic high temperature fermentation system, comprise feed system, the band stirring system the dry-type anaerobic fermentation jar, the insulation heating system, liquid natural pond, natural pond slag treatment system, exhaust system and system; Said feed system comprises material-storing box, transfer roller, half wet crushing mill, the pretreatment pool that order is provided with; Liquid natural pond, said natural pond slag treatment system comprises through interconnective sludge dewatering equipment of pipeline and apparatus for treating sewage; Said exhaust system comprises through pipeline and the tank connected gas-holder of dry-type anaerobic fermentation; The pretreatment pool of feed system is connected with the opening for feed of dry-type anaerobic fermentation jar through pipeline; The dry-type anaerobic fermentation jar is connected through circulation line between the heating system with insulation, and the dry-type anaerobic fermentation jar also passes through pipeline and is connected with apparatus for treating sewage with the sludge dewatering equipment of liquid natural pond, natural pond slag treatment system respectively.
Apparatus for treating sewage of the present invention is connected with the insulation heating system through pipeline and perhaps is connected to blowdown system.
The stirring system of dry-type anaerobic fermentation jar according to the invention comprises from the feed end of dry-type anaerobic fermentation jar and is arranged at five groups of stirring mechanisms the dry-type anaerobic fermentation jar to the discharge end order; Every group of stirring mechanism comprises and is positioned at the outer step-down gear of dry-type anaerobic fermentation jar, the vertical stir shaft that is installed on the dry-type anaerobic fermentation jar that is connected with step-down gear, is installed on the agitating vane on the stir shaft.At every stir shaft upper edge different heights three groups of agitating vanes are installed, adjacent agitating vane is arranged for interlaced 90 °.Described agitating vane is the blade of band mesh.The agitating vane of topmost partly is positioned on the dry-type anaerobic fermentation jar fermentation liquid level, the agitating vane of bottommost near but do not contact dry-type anaerobic fermentation jar bottom surface.The top that is positioned at the dry-type anaerobic fermentation jar at stir shaft is equipped with tightness system.
The sidewall of dry-type anaerobic fermentation jar of the present invention bottom be the scarp of closing up gradually downwards, and the bottom surface of dry-type anaerobic fermentation jar is to inclined-plane that discharge end reduces gradually from feed end.
Heat tracing of the present invention system comprises cold water storage cistern, air source heat pump, attemperater, scatterer, the interchanger that is linked in sequence through water pipe; Scatterer is arranged in the dry-type anaerobic fermentation jar; Between air source heat pump and attemperater, also be connected with the backflow water pipe, attemperater respectively with the radiator inleting pipe that is connected scatterer and radiator outlet pipe and the interchanger water inlet pipe and the interchanger rising pipe that are connected interchanger; Interchanger also is connected with natural pond liquid extraction line with the natural pond liquid feed-pipe of the circulation line that is connected the dry-type anaerobic fermentation jar.
The present invention also is provided with dehydration and desulfurizer at the gas-holder front end of exhaust system.
A kind of organic waste dry-type anaerobic high temperature zymotechnique, step is following:
The natural pond liquid that
obtains fermentation is delivered to the insulation heating system through pipeline and is heated; Natural pond liquid after the part heating is recycled to the dry-type anaerobic fermentation jar through pipeline again to be stirred with a jar interior mixing of materials; Be heated to 55～60 ℃ to the material in the dry-type anaerobic fermentation jar, the solid holdup of regulating material is 30%～40%;
It is high that the present invention handles domestic organic garbage efficient; Energy consumption is low; Can not cause secondary pollution; Product after fermentation separates can prepare concentrated fertilizer, biomass fuel and biogas energy, has realized innoxious, the minimizing and the recycling treatment of domestic organic garbage, and domestic organic garbage has been carried out effective recycle.The present invention can monitor the fermentation state of material in real time through system, and each equipment operation realizes the automatic control of system in the automatic control system.
Further set forth content of the present invention below in conjunction with Figure of description.
Description of drawings
Fig. 1 is organic waste dry-type anaerobic high temperature fermentation system figure of the present invention;
Fig. 2 is that dry-type anaerobic fermentation jar stirring system of the present invention is provided with synoptic diagram;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the vertical view of one group of whipping appts;
Fig. 5 is an insulation heating system structural representation.
Among the figure, 1-feed system; 1a-material-storing box; 1b-transfer roller; 1c-half wet crushing mill; 1d-pretreatment pool; 2-dry-type anaerobic fermentation jar; 2a-dry-type anaerobic fermentation pot sidewall bottom; 2b-dry-type anaerobic fermentation jar bottom surface; 2c-opening for feed; 2d-discharge port; 3-stirring system; 3a-step-down gear; 3b-stir shaft; 3c-agitating vane; 3d-tightness system; 4-insulation heating system; 4a-cold water storage cistern, 4b-air source heat pump; 4c-attemperater; 4d-scatterer; 4e-interchanger; 4f-water pipe; 4g-backflow water pipe; 4h-radiator inleting pipe; 4i-radiator outlet pipe; 4j-interchanger water inlet pipe; 4k-interchanger rising pipe; 4m-natural pond liquid feed-pipe; 4n-natural pond liquid extraction line; Liquid natural pond, 5-natural pond slag treatment system; 5a-sludge dewatering equipment; 5b-apparatus for treating sewage; 5c-pipeline; 6-exhaust system; 6a-gas-holder; 6b-dehydration and desulfurizer; 7-blowdown system.
Embodiment
As shown in Figure 1, organic waste dry-type anaerobic high temperature fermentation system of the present invention comprises the dry-type anaerobic fermentation jar 2 of feed system 1, band stirring system 3, insulation heating system 4, liquid natural pond, natural pond slag treatment system 5, exhaust system 6 and system.Feed system 1 comprises material-storing box 1a, transfer roller 1b, half wet crushing mill 1c, the pretreatment pool 1d that order is provided with.Liquid natural pond, said natural pond slag treatment system 5 comprises through interconnective sludge dewatering equipment 5a of pipeline 5c and apparatus for treating sewage 5b; Said exhaust system 6 comprises through pipeline and the tank connected gas-holder 6a of dry-type anaerobic fermentation; The pretreatment pool 1d of feed system is connected with the opening for feed of dry-type anaerobic fermentation jar 2 through pipeline; Dry-type anaerobic fermentation jar 2 is connected through circulation line between the heating system 4 with insulation, and dry-type anaerobic fermentation jar 2 also passes through pipeline and is connected with apparatus for treating sewage 5b with the sludge dewatering equipment 5a of liquid natural pond, natural pond slag treatment system respectively.Apparatus for treating sewage 5b also can be connected with insulation heating system 4 through pipeline and perhaps is connected to blowdown system 7.At the gas-holder 6a of exhaust system 6 front end dehydration and desulfurizer 6b can be set also.
System of the present invention is made up of the system of the ph value monitoring sensor of arranging in the electrical control system of each equipment in the dry type anaerobic high temperature fermentation system and the dry-type anaerobic fermentation jar, pressure monitoring transmitter, temperature monitoring sensor, material position-detection sensor.Can monitor material fermentation state in the dry-type anaerobic fermentation jar in real time; The operation of feeding back each equipment of controlling in the dry type anaerobic fermentation system according to the parameter of each transmitter is to realize control automatically and to regulate liquid level, temperature, pH value and jar internal pressure and the input and output material of material in the dry-type anaerobic fermentation jar.
Dry-type anaerobic fermentation jar 2 of the present invention adopts the whole concrete structure, can offer viewing window at the dry-type anaerobic fermentation pot sidewall.The sidewall bottom 2a of dry-type anaerobic fermentation jar 2 is the scarp of closing up gradually downwards; The bottom surface 2b of dry-type anaerobic fermentation jar for from feed end to inclined-plane that discharge end reduces gradually; The material that reaction is accomplished deposits to the bottom, and is beneficial to the flow direction of material discharge port 2d that reaction is accomplished.The stirring system 3 of dry-type anaerobic fermentation jar comprises from the feed end of dry-type anaerobic fermentation jar being arranged at five groups of stirring mechanisms the dry-type anaerobic fermentation jar to the discharge end order like Fig. 3, Fig. 4, shown in Figure 5; Every group of stirring mechanism comprises and is positioned at the outer step-down gear 3a of dry-type anaerobic fermentation jar, the vertical stir shaft 3b that is installed on the dry-type anaerobic fermentation jar that is connected with step-down gear, is installed on the agitating vane 3c on the stir shaft.At every stir shaft upper edge different heights three groups of agitating vane 3c are installed; Adjacent agitating vane is arranged for interlaced 90 °; The agitating vane of topmost partly is positioned on the dry-type anaerobic fermentation jar fermentation liquid level, the agitating vane of bottommost near but do not contact dry-type anaerobic fermentation jar bottom surface.Agitating vane 3c is the blade of band mesh.The top that is positioned at the dry-type anaerobic fermentation jar at stir shaft is equipped with tightness system 3d.Through rotation that is set in sequence in five groups of stirring mechanisms in the dry-type anaerobic fermentation jar and the effect of cooperatively interacting; Can effectively solve propelling, discharging and the fully stirring of material; Especially be employed in every stir shaft upper edge different heights three groups of agitating vanes are installed; Adjacent agitating vane is arranged for interlaced 90 °, not only can advance material better, and organism is mixed with inoculum more fully; Medium in the fermented product, mikrobe, nutrition etc. are evenly suspended, and holding temperature, acidity are even.The agitating vane of topmost partly is positioned on the dry-type anaerobic fermentation jar fermentation liquid level; Can effectively prevent fermented product surface crust; The agitating vane of bottommost near but do not contact dry-type anaerobic fermentation jar bottom surface; Can avoid dry-type anaerobic fermentation pot bottom material deposition, also can reduce corrosion stirring mechanism.Agitating vane adopts the blade of band mesh, can reduce the resistance in whipping process.Tightness system 3d can avoid the dry-type anaerobic fermentation jar because the installation of whipping appts produces leakage.
Heat tracing of the present invention system 4 is as shown in Figure 5, comprises the cold water storage cistern 4a, air source heat pump 4b, attemperater 4c, scatterer 4d, the interchanger 4e that are linked in sequence through water pipe 4f; Scatterer 4d is arranged in the dry-type anaerobic fermentation jar 2; Between air source heat pump 4b and attemperater 4c, also be connected with backflow water pipe 4g, attemperater 4c respectively with the radiator inleting pipe 4h that is connected scatterer 4d and radiator outlet pipe 4i and the interchanger water inlet pipe 4j and the interchanger rising pipe 4k that are connected interchanger 4e; Interchanger 4e also is connected with natural pond liquid extraction line 4n with the natural pond liquid feed-pipe 4m of the circulation line that is connected the dry-type anaerobic fermentation jar.
System of the present invention used in semi-wet grinder, pretreatment pool, air-source heat pumps, radiators, heat exchangers, dehydration and desulfurization equipment, sewage disposal, sludge dewatering machine Alto can use existing technology and equipment.
The zymotechnique step of organic waste dry-type anaerobic high temperature fermentation system of the present invention is following:
The natural pond liquid that
obtains fermentation is delivered to insulation heating system 4 through pipeline and is heated.The dry-type anaerobic fermentation jar is advancing material prior; Through the temperature in the temperature sensor monitors dry-type anaerobic fermentation jar; Start the insulation heating system dry-type anaerobic fermentation jar is carried out heat tracing; Along with material gets in the dry-type anaerobic fermentation jar, monitor temperature is controlled the water temp flow velocity in scatterer 4d that is installed in the dry-type anaerobic fermentation jar and the hot water circulating pipeline that is connected scatterer through system in real time; The dry-type anaerobic fermentation jar is heated and is incubated, with homo(io)thermism in the control dry-type anaerobic fermentation jar at 55～60 ℃.The cold water storage cistern 4a of heating system provides air source heat pump 4b the required cold water of working, and gets into air source heat pump through water pipe by cold water storage cistern, and air source heat pump heats cold water; Hot water gets into attemperater 4c; If it is temperature required that the interior hot water of attemperater is lower than, get into air source heat pump circulation heating through the backflow water pipe, the hot water in the attemperater gets into scatterer 4d through the connection water pipe; Hot water is back to attemperater through radiator outlet pipe 4i after getting into scatterer through radiator inleting pipe 4h again.When interchanger is worked; Hot water in the attemperater gets into interchanger through interchanger water inlet pipe 4j; 4k is back to attemperater through the interchanger rising pipe; Natural pond liquid part in the dry-type anaerobic fermentation jar 2 flow to interchanger through natural pond liquid extraction line 4n, through mixing of materials stirring in natural pond liquid feed-pipe 4m is back to dry-type anaerobic fermentation jar and jar again after the heating, thereby the heating of the material in the dry-type anaerobic fermentation jar.After material gets into the dry-type anaerobic fermentation jar, through pipeline spray mud solid holdup is inoculated and regulated to the material in the dry-type anaerobic fermentation jar, the solid holdup that makes material is 30%～40%, and the ph value remains between the 6.6-7.2.Be connected and work through the reasonable of air source heat pump, attemperater, scatterer and interchanger; The heat energy that utilizes air source heat pump to provide; Both can realize insulation through the work of dry-type anaerobic fermentation jar inner radiator to environment in the dry-type anaerobic fermentation jar; Can liquid circulation in natural pond be heated through the work of interchanger again, thus efficient fast to heating of the material in the dry-type anaerobic fermentation jar and insulation.
will ferment material of accomplishing is used to extract out in the dry-type anaerobic fermentation jar and is delivered to sludge dewatering equipment 5a and carry out solid-liquid separation; The natural pond slag of separating stored wait until further utilization, deliver to insulation heating system 4 recycles after the natural pond liquid of separating is handled through apparatus for treating sewage 5b or handle and deliver to blowdown system 7 after up to standard; The mud that sewage treatment process produces is transported in the dry-type anaerobic fermentation jar through pipeline and ferments, and realizes the resource circulation utilization;
Fermenting process is the continous way charging, i.e. dry-type anaerobic fermentation jar continuously feeding, and the material that decomposes is fully discharged from the dry-type anaerobic fermentation pot bottom continuously.In fermentation first cycle (about 25 days), a charging, not discharging.After first fermentation period is accomplished, every day input and output material.During the fermentation, stirring system realizes that through control interval type stirs.Feed time was controlled at about 3～4 hours, reduced the calorific loss that causes because of charging; Discharging time was controlled at about 2 hours; Stirring system stops to stir in preceding two hours of discharging; After treating that fermented product leaves standstill two hours, the material that has not fermented is positioned at dry-type anaerobic fermentation jar top, and the material that has fermented (being the natural pond slag) is positioned at the bottom of dry-type anaerobic fermentation jar.
Produced biogas, natural pond liquid, natural pond slag in the fermenting process, biogas deposits gas-holder in, can be system itself and with the system outside energy demand is provided.The part natural pond liquid that produces in the fermenting process is supplied with the material circulation heating in the dry-type anaerobic fermentation jar and is regulated solid holdup by the insulation heating system.After part natural pond liquid and natural pond slag are sent into the sludge dewatering equipment dehydration; Solids is used for aerobic compost; Finally can be made into fertilizer or RDF fuel stick, liquid can offer fermentation system again and perhaps be discharged into reuse in the city planting ductwork as the heating cycle water after apparatus for treating sewage is handled.
The present invention has obtained the good technical effect through applicant's verification experimental verification, is with a wide range of applications.
Claims (11)
1. organic waste dry-type anaerobic high temperature fermentation system; It is characterized in that; The dry-type anaerobic fermentation jar (2) that comprises feed system (1), band stirring system (3), insulation heating system (4), liquid natural pond, natural pond slag treatment system (5), exhaust system (6) and system; Said feed system (1) comprises material-storing box (1a), transfer roller (1b), half wet crushing mill (1c), the pretreatment pool (1d) that order is provided with; Said natural pond liquid natural pond slag treatment system (5) comprises through interconnective sludge dewatering equipment of pipeline (5c) (5a) and apparatus for treating sewage (5b); Said exhaust system (6) comprises through pipeline and the tank connected gas-holder of dry-type anaerobic fermentation (6a); The pretreatment pool of feed system (1d) is connected with the opening for feed of dry-type anaerobic fermentation jar (2) through pipeline; Be connected through circulation line between dry-type anaerobic fermentation jar (2) and insulation heating system (4), dry-type anaerobic fermentation jar (2) also passes through pipeline and is connected with apparatus for treating sewage (5b) with the sludge dewatering equipment (5a) of liquid natural pond, natural pond slag treatment system respectively.
2. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 1 is characterized in that, apparatus for treating sewage (5b) is connected with insulation heating system (4) through pipeline and perhaps is connected to blowdown system (7).
3. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 1; It is characterized in that the stirring system (3) of said dry-type anaerobic fermentation jar (2) comprises from the feed end of dry-type anaerobic fermentation jar and is arranged at five groups of stirring mechanisms the dry-type anaerobic fermentation jar to the discharge end order; Every group of stirring mechanism comprises and is positioned at the outer step-down gear (3a) of dry-type anaerobic fermentation jar, the vertical stir shaft (3b) that is installed on the dry-type anaerobic fermentation jar that is connected with step-down gear, is installed on the agitating vane (3c) on the stir shaft.
4. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 3 is characterized in that, at every stir shaft upper edge different heights three groups of agitating vanes (3c) is installed, and adjacent agitating vane is arranged for interlaced 90 °.
5. according to claim 3 or 4 described a kind of organic waste dry-type anaerobic high temperature fermentation systems, it is characterized in that described agitating vane (3c) is the blade of band mesh.
6. according to claim 3 or 4 described a kind of organic waste dry-type anaerobic high temperature fermentation systems, it is characterized in that the top that is positioned at the dry-type anaerobic fermentation jar at stir shaft is equipped with tightness system (3d).
7. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 4; It is characterized in that; The agitating vane of topmost partly is positioned on the dry-type anaerobic fermentation jar fermentation liquid level, the agitating vane of bottommost near but do not contact dry-type anaerobic fermentation jar bottom surface.
8. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 1; It is characterized in that; The sidewall of dry-type anaerobic fermentation jar (2) bottom (2a) be the scarp of closing up gradually downwards, and the bottom surface of dry-type anaerobic fermentation jar (2) are to inclined-plane that discharge end reduces gradually from feed end.
9. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 1; It is characterized in that said heat tracing system (4) comprises cold water storage cistern (4a), air source heat pump (4b), attemperater (4c), scatterer (4d), the interchanger (4e) that is linked in sequence through water pipe (4f); Scatterer (4d) is arranged in the dry-type anaerobic fermentation jar (2); Between air source heat pump (4b) and attemperater (4c), also be connected with backflow water pipe (4g), attemperater (4c) respectively with the radiator inleting pipe that is connected scatterer (4d) (4h) and radiator outlet pipe (4i) and the interchanger water inlet pipe (4j) and the interchanger rising pipe (4k) that are connected interchanger (4e); Interchanger (4e) also is connected with natural pond liquid extraction line (4n) with the natural pond liquid feed-pipe (4m) of the circulation line that is connected the dry-type anaerobic fermentation jar.
10. a kind of organic waste dry-type anaerobic high temperature fermentation system according to claim 1 is characterized in that, gas-holder (6a) front end in exhaust system (6) also is provided with dehydration and desulfurizer (6b).
11. an organic waste dry-type anaerobic high temperature zymotechnique is characterized in that process step is following:
The natural pond liquid that
obtains fermentation is delivered to insulation heating system (4) through pipeline and is heated; Natural pond liquid after the part heating is recycled to the dry-type anaerobic fermentation jar through pipeline again to be stirred with a jar interior mixing of materials; Be heated to 55～60 ℃ to the material in the dry-type anaerobic fermentation jar, the solid holdup of regulating material is 30%～40%;
will ferment material of accomplishing is used to extract out in the dry-type anaerobic fermentation jar and is delivered to sludge dewatering equipment (5a) and carry out solid-liquid separation; The natural pond slag of separating stored wait until further utilization, deliver to the recycle of insulation heating system (4) after the natural pond liquid of separating is handled through apparatus for treating sewage (5b) and perhaps handle and deliver to blowdown system (7) after up to standard; The mud that sewage treatment process produces is transported in the dry-type anaerobic fermentation jar through pipeline and ferments;
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| CN114317253A (en) * | 2022-01-09 | 2022-04-12 | 丁庆 | Organic matter methane fermentation circulation control integrated system and fermentation method |
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