CN106010946B - A kind of cold area's garage type dry-type methane fermentation system and its method of work - Google Patents
A kind of cold area's garage type dry-type methane fermentation system and its method of work Download PDFInfo
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- CN106010946B CN106010946B CN201610601177.6A CN201610601177A CN106010946B CN 106010946 B CN106010946 B CN 106010946B CN 201610601177 A CN201610601177 A CN 201610601177A CN 106010946 B CN106010946 B CN 106010946B
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Abstract
A kind of cold area's garage type dry-type methane fermentation system and its method of work, belong to organic solid castoff application technology as the second resource field, including fermentation tank, solar heating system, biogas slurry spray system, marsh gas purifying stocking system and aerating system several major.The present invention can ensure that sunshine is as much as possible using sunlight board greenhouse and penetrate in greenhouse, be radiated on black flexible film, will not make flexible membrane exposure again in an atmosphere so that heat losses, it is possible to achieve good increasing heat insulation effect；The heat energy of solar thermal collection system can be put aside in regenerative heat exchange water tank built in bottom land on daytime, the heat energy of savings is passed into material when night, environment temperature was relatively low, both the temperature of charge being to ensure that in fermentation tank, can be that aeration tube heats in the water tank passed through again；Aerating system can dredge material heap using biogas caused by reactor itself well, improve the coefficient of overall heat transmission.
Description
Technical field
The invention belongs to organic solid castoff application technology as the second resource field, especially relates to a kind of cold area's garage type
Dry-type methane fermentation system and its method of work.
Background technology
Our province agricultural organic solid castoff aboundresources, handle and bad using present situation, it is seriously polluted；Meanwhile and face
The present situation for facing rural area primary energy shortage is urgently to be resolved hurrily.The four seasons steady aerogenesis, high efficiency, low cost firedamp gas equipment are developed, can be promoted
The harmless treatment of the agricultural organic wastes such as feces of livestock and poultry, stalk and recycling, eliminate excrement, stalk to surface water,
Underground water, air environmental pollution and microorganism pollution, improve rural area and urban life and environmental quality.
The existing big-and-middle-sized biogas facility in cold area increases heat preservation technology and is still far from perfect, it is impossible to ensures winter stabilization, low energy consumption
Operation.In recent years, several big-and-middle-sized dry method biogas engineerings of domestic-developed construction, although compared with wet method biogas, aerogenesis power consumption
Decrease, but still suffer from problems in use.As Planning Design Inst., Ministry of Agricultry obtains the patent of invention " one authorized
The device and method thereof of kind dry fermentation ", its type of reactor is overlay film groove dry type anaerobic reactor, and case history is Beijing
Xue Ying villages of Daxing District Pang Gezhuang cattle farm dry method biogas engineering, because the top surface of reactor and side are all covered using black flexible film
Lid, can absorb part solar energy, and summer use has no problem, but be difficult operation in winter in cold area because its heat-insulating property is very poor；
Again because reactor is arranged in tall and big workshop, workshop building cost is high, substantially increases the cost of whole engineering, and
Do not solve the problems, such as reactor Winter protection very well；Again because such a dry fermentation technique belongs to batch and fermented, during anaerobic fermentation
Inside reactor does not have mixing plant, so material heat-transfer effect is poor, non-uniform temperature, influences fermentation efficiency；Because of heat collection water tank
It is arranged on outside reactor, accumulation of heat means are not taken in inside, can not compensate night in winter inside reactor energy loss.And for example
Heilongjiang Loonggas Investment Limited Company obtains the utility model patent " dry method anaerobic reactor " authorized, case history
For Bin County's garage type dry fermentation refuse treatment engineering, the overall equipment Imported From German EMH Company dry fermentation methane technology of the engineering, multiple reactor cloth
Put in a big workshop, construction costs is extremely expensive, although reactor heat insulation effect is good, winter operation still needs to
More conventional energy resource is consumed, while Insulation hinders transmission of the heat energy to inside reactor in environment in summer, makes it i.e.
Make to be also required to consume in summer conventional energy resource to reach the temperature of mesophilic digestion, the engineering inside reactor does not take accumulation of heat hand yet
Section.
Therefore, above-mentioned prior art problems present in are only solved very well, can just be substantially reduced big-and-middle-sized dry
The building cost of formula biogas engineering, realize stable, efficient, low cost operation throughout the year.
The content of the invention
The technical problems to be solved by the invention are：A kind of cold area's garage type dry-type methane fermentation system and its work are provided
Method, it is unable to that low energy consumption stable operation, fermentation raw material uneven heating be even, engineering for solving existing dry method biogas engineering winter
The technical problems such as building cost height.
A kind of cold area's garage type dry-type methane fermentation system, it is characterized in that, including fermentation tank, solar heating system, natural pond
Liquid spray system, marsh gas purifying stocking system and aerating system,
Described fermentation tank includes:Water-sealed valve, evacuated tube, sunlight board greenhouse, collection air film, breather pipe, the first escape pipe, steel
Reinforced concrete cell body, polymeric seal waterproof layer, polyurethane insulation coating, the first appendix, the first stop valve, hydraulic door, it is described
Armored concrete cell body be hollow rectangular parallelepiped structure, armored concrete cell body is arranged on level ground and reinforced concrete
The side of soil box body is towards Due South to armored concrete cell body is provided with a vehicle towards due east or towards the side wall of due west
The oblong openings of disengaging, the inside side wall of armored concrete cell body and the surface spraying of ceiling have polymeric seal waterproof layer；
The surface spraying of described polymeric seal waterproof layer has polyurethane insulation coating；The collection air film is fixed on armored concrete cell body
Top outer, collect between air film and armored concrete cell body for collection headroom；The sunlight board greenhouse is arranged on reinforced concrete
The top outer of soil box body, and cover on the top of collection air film；One end of first escape pipe is connected with the collection headroom,
After the other end of first escape pipe passes inside the top plate of armored concrete cell body, stored up by the first appendix and marsh gas purifying
The roots blower connection of deposit system；The first described stop valve is arranged on the first appendix；Described breather pipe one end and institute
The connection of collection headroom is stated, the other end of breather pipe is connected with the inside of armored concrete cell body；Described evacuated tube is arranged on steel
The top of reinforced concrete cell body, one end of evacuated tube are connected with the inside of armored concrete cell body, and the other end of evacuated tube passes
With atmosphere behind sunlight board greenhouse, water-sealed valve is provided with the middle part of evacuated tube；The hydraulic door is arranged on reinforced concrete soil box
At the oblong openings of body；
Described solar heating system includes：It is expansion tank, high density extruded sheet, regenerative heat exchange water tank, water-level gauge, defeated
Water pipe, row's case outlet pipe, row's case delivery port, air bleeding valve, radiator drain, water filling port, filter, circulating pump, check valve, row's case
Water inlet pipe, support, bracket, row's case, solar energy heat collection pipe and tank inlet pipe；The expansion tank is arranged on reinforced concrete soil box
The top of body, expansion tank are connected by pipeline with regenerative heat exchange water tank；Described regenerative heat exchange water tank is arranged on reinforced concrete
On the internal ground of soil box body, the upper surface and ground outside armored concrete cell body of regenerative heat exchange water tank are contour；Described height
Density extruded sheet is laid on the bottom of regenerative heat exchange water tank；The support is arranged on armored concrete cell body due south direction side wall
It is outside；Described bracket and row's case is fixedly mounted on support；The top of row's case is connected with row's case outlet pipe, arranges case
Bottom is connected with row's case water inlet pipe；The cecum of described solar energy heat collection pipe is fixedly mounted in bracket, solar energy heat collection pipe
Openend is fixedly mounted in the opening of row's case；The water filling port is arranged on the pipeline between radiator drain and filter；
The water inlet of described circulating pump is connected by filter with radiator drain, and the delivery port of circulating pump passes through check valve and row's case
Water inlet pipe connects；Row's case delivery port is connected by pipeline with tank inlet pipe；The air bleeding valve is gone out by threeway and row's case
The mouth of a river connects；The water-level gauge is arranged on the water-supply-pipe above row's case；
Described biogas slurry spray system includes：Spiral nozzle, infusion pipeline, biogas slurry pond, biogas slurry pump, discharge opeing water seal, discharge opeing
Pipe and collecting tank；Described spiral nozzle is fixedly mounted on the inner top of armored concrete cell body；The biogas slurry pond is arranged on steel
The outside of reinforced concrete cell body and the below ground for being located at hydraulic door side；The biogas slurry pump is arranged on the interior bottom in biogas slurry pond
Portion；One end of the infusion pipeline is connected with spiral nozzle, and the other end of infusion pipeline is connected with the outlet of biogas slurry pump；The collection
Liquid bath is arranged on fermentation tank and is connected close to the bottom of hydraulic door side, collecting tank by discharging tube with biogas slurry pond；The discharging tube
Discharge opeing water seal is provided with the port in connection biogas slurry pond；
Described marsh gas purifying stocking system includes：Second stop valve, drain sump, digester, air inlet pipe, double film gas storage
Cabinet, torch, the second escape pipe, the 4th stop valve, the 3rd appendix and roots blower；The import of described roots blower passes through
One appendix is connected with the first escape pipe, and the exit of roots blower is provided with threeway, and one of outlet is by the second cut-off
Valve is connected with drain sump, and one end of the digester is connected with drain sump, and the other end of digester is stored up by air inlet pipe and double films
Gas holder connects；The torch is connected by the second escape pipe with double film gas storage holders；The 4th section is provided with second escape pipe
Only valve；One end of 3rd appendix is connected with double film gas storage holders, and the other end of the 3rd appendix is connected to user；
The aerating system includes：Roots blower, the second appendix, the 3rd stop valve, in water tank outside aeration tube and water tank
Aeration tube；Another outlet of the roots blower is connected by the second appendix with aeration tube in water tank；Second gas transmission
The 3rd stop valve is provided with pipe；Aeration tube is connected with the outer aeration tube of water tank in the water tank；The outer aeration tube of the water tank is set
In the groove of regenerative heat exchange water tank upper surface, the end of the outer aeration tube of water tank is provided with blind plugging.
Time switch is provided with the circulating pump.
The inner surface of the hydraulic door is coated with polyurethane insulation coating, welded in the circumferential side frame of hydraulic door it is fluted, it is recessed
Gas tube is installed with groove.
The gas tube is connected with air pump.
The water-sealed valve includes U-tube, tapping valve, drainpipe and water injection pipe；The tapping valve is arranged under U-tube
Portion；The drainpipe is located at the bottom of tapping valve；One end of the water injection pipe is located at the top of U-tube, the other end of water injection pipe
Connected with the inside of U-tube.
The regenerative heat exchange water tank is connected by valve with methane boiler.
A kind of method of work of cold area's garage type dry-type methane fermentation system, sent out using a kind of cold area's garage type dry-type methane
Ferment system, it is characterized in that：Comprise the following steps,
Step 1: solar energy system water filling
17:00 up to 5:When 00, the valve of air bleeding valve and water-level gauge, the water filling into solar heating system, water level are opened
After meter shows that water fills, the valve of air bleeding valve and water-level gauge is closed, sunshade net is all covered in the upper surface of solar energy heat collection pipe；
Step 2: charging, sealing liquid pressure gate
Charged material into using forklift in fermentation tank, after forklift rolls away from, close hydraulic door, control inflator pump manually to hydraulic pressure
Injection air in gas tube on door, until the gas overpressure that rises reaches 25kPa, stop inflation；
Step 3: solar heating system startup optimization
Sunshade net is removed, circulating pump is set by time switch often operates 1 hour and stall 30 minutes,
Intensity of illumination is more than 30000lux, and the water temperature of regenerative heat exchange water tank is less than 60 DEG C, opens time switch, make the sun
Energy temperature-increasing system is continuously material and provides heat,
Intensity of illumination is more than 30000lux, and the water temperature of solar energy heat collection pipe is higher than the water temperature of 70 DEG C or regenerative heat exchange water tank
Higher than 60 DEG C, solar energy heat collection pipe is covered with sunshade net；
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank is less than 60 DEG C, the valve of the row's of closing case outlet pipe
With the valve of row's case water inlet pipe, methane boiler valve is opened, burn methane boiler, and opens time switch, utilizes methane boiler
To the water heating in regenerative heat exchange water tank, temperature of charge is set to maintain 50 DEG C~55 DEG C,
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank is higher than 60 DEG C, the valve of the row's of closing case outlet pipe
With the valve of row's case water inlet pipe, methane boiler valve is closed, stops circulating-heating；
Step 4: aerobic pretreatment
The first stop valve and the 3rd stop valve are opened, closes the second stop valve, started Roots's wind every 7 hours~8 hours
Machine is aerated to fermentation materials, and aeration closes roots blower after terminating, and each aeration time is 25 minutes~30 minutes, is being exposed
During gas, the air of suction is output in aeration tube by roots blower, and the output pressure of roots blower is 60kPa, and air passes through
The outer aeration tube of water tank is passed through in fermentation materials, and temperature sensor measurement material layer temperature, temperature of charge reaches 50 DEG C~55 DEG C, carries out
In next step；
Step 5: envelope reactor carries out anaerobic fermentation
Close tapping valve, the water filling into water-sealed valve by water injection pipe, until the water surface in water injection pipe is higher than water injection pipe and U-shaped
The junction of pipe, the water in water-sealed valve seal evacuated tube completely, stop water filling, close the first stop valve, carry out anaerobic fermentation.
Step 6: anaerobic fermentation discharges miscellaneous gas initial stage
The volumetric concentration of methane in sewage gas is detected, is miscellaneous gas when the volumetric concentration of methane in sewage gas is less than 50%, starts sieve
Miscellaneous gas is expelled to air by thatch blower fan by evacuated tube；
Step 7: the purification storage of biogas
It more than 50% is qualified biogas that the volumetric concentration of methane in sewage gas, which is, opens the first stop valve and the second stop valve,
The 3rd stop valve is closed, starts roots blower and extracts qualified biogas out and successively by the purification of digester and drain sump, storage
In double film gas storage holders, the purifying marsh gas in double film gas storage holders is delivered to user's use, and remaining purifying marsh gas is fired by torch
Burn, caused water and CO2It is emitted into air；
Step 8: anaerobic fermentation terminates, discharged
Start roots blower to extract the gas in fermentation tank out, until the pressure in fermentation tank is equal to 0Pa, closing Roots's wind
Machine, tapping valve is opened, the water in tapping valve is discharged by drainpipe out of water-sealed valve,
It is again started up roots blower to continue to blast air into fermentation tank, and is surveyed using biogas alarm at the emptying mouth of pipe
Amount, the volumetric concentration of methane are less than 0.4%, start hydraulic door, measured again with biogas alarm, and the volumetric concentration of methane is less than
0.4%, then Environmental security in fermentation tank, forklift are discharged into fermentation tank.
By above-mentioned design, the present invention can bring following beneficial effect：
First, it can ensure that sunshine is as much as possible using the sunlight board greenhouse of above-mentioned design and penetrate in greenhouse, irradiate
On black flexible film, flexible membrane exposure will not be made again in an atmosphere so that heat losses, it is possible to achieve good increasing insulation effect
Fruit.
Second, it can put aside solar thermal collection system on daytime using in regenerative heat exchange water tank built in the bottom land of above-mentioned design
Heat energy, the heat energy of savings is passed into material when night, environment temperature was relatively low, the thing being both to ensure that in fermentation tank
Material temperature degree, can be that aeration tube heats in the water tank passed through again.
3rd, material can be dredged using biogas caused by reactor itself using the aerating system of above-mentioned design well
Heap, improve the coefficient of overall heat transmission.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated：
Fig. 1 is a kind of general structure schematic diagram of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 2 is a kind of side structure schematic view of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 3 is a kind of fermentation tank sectional view one of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 4 is a kind of fermentation tank sectional view two of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 5 is a kind of solar heat-exchange system architecture signal of cold area's garage type dry-type methane fermentation system in the present invention
Figure.
Fig. 6 is a kind of biogas slurry spray system structural representation of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 7 is a kind of methane purifying system structural representation of cold area's garage type dry-type methane fermentation system in the present invention.
Fig. 8 is regenerative heat exchange tank cross-sectional built in a kind of bottom land of cold area's garage type dry-type methane fermentation system in the present invention
Schematic diagram.
Fig. 9 is a kind of hydraulic door partial enlargement structural representation of cold area's garage type dry-type methane fermentation system in the present invention
Figure.
Figure 10 is a kind of water-sealed valve partial enlargement structural representation of cold area's garage type dry-type methane fermentation system in the present invention
Figure.
In figure, 1- fermentation tanks, 2- solar heat-exchanges system, 3- biogas slurries spray system, 4- marsh gas purifyings stocking system, 5- expose
Gas system, 6- water-sealed valves, 7- evacuated tubes, 8- sunlight boards greenhouse, 9- expansion tanks, 10- collection air film, 11- breather pipes, 12- first
Escape pipe, 13- armored concrete cell body, 14- polymeric seals waterproof layer, 15- polyurethane insulation coatings, the appendixs of 16- first,
The stop valves of 17- first, 18- high density extruded sheet, 19- regenerative heat exchanges water tank, 20- water-level gauges, 21- water-supply-pipes, 22- row's case water outlets
Pipe, 23- row's casees delivery port, 24- air bleeding valves, 25- radiator drains, 26- water filling ports, 27- filters, 28- circulating pumps, 29- are mono-
To valve, 30- row's casees water inlet pipe, 31- supports, 32- brackets, 33- rows case, 34- solar energy heat collection pipes, 35- tank inlet pipes, 36-
Spiral nozzle, 37- infusion pipelines, 38- biogas slurries pond, 39- biogas slurries pump, 40- discharge opeings water seal, 41- discharging tubes, 42- collecting tanks, 43-
The double film gas storage holders of 3rd stop valve, the stop valves of 44- second, 45- drain sumps, 46- digesters, 47- air inlet pipe, 48-, 49- torches,
The escape pipes of 50- second, the stop valves of 51- the 4th, the appendixs of 52- the 3rd, 53- roots blowers, the appendixs of 54- second, in 55- water tanks
The outer aeration tube of aeration tube, 56- water tanks, 57- hydraulic doors, 58- grooves, 59- gas tube, 60- tapping valves, 61- drainpipes, 62- notes
Water pipe.
Embodiment
As illustrated, a kind of cold area's garage type dry-type methane fermentation system, it is characterized in that, including the increasing of fermentation tank 1, solar energy
Warm system 2, biogas slurry spray system 3, marsh gas purifying stocking system 4 and aerating system 5,
Described fermentation tank 1 includes:Water-sealed valve 6, evacuated tube 7, sunlight board greenhouse 8, collection air film 10, breather pipe 11, first
Escape pipe 12, armored concrete cell body 13, polymeric seal waterproof layer 14, polyurethane insulation coating 15, the first appendix 16, first
Stop valve 17, hydraulic door 57, described fermentation tank 1 are designed to rectangle trough body structure, and cell body is arranged on level ground, by east
Arrangement is moved towards in west, is fermentation system main part；Described armored concrete cell body 13 is hollow rectangular parallelepiped structure, and reinforcing bar mixes
Solidifying soil box body 13 is arranged on level ground and the side of armored concrete cell body 13 is towards Due South to reinforced concrete soil box
Body 13 is provided with the oblong openings of vehicles while passing towards due east or towards the side wall of due west, armored concrete cell body 13
The surface spraying of internal side wall and ceiling has polymeric seal waterproof layer 14；The surface spray of described polymeric seal waterproof layer 14
Scribble polyurethane insulation coating 15；The collection air film 10 is fixed on the top outer of armored concrete cell body 13, collects air film 10 and steel
It is collection headroom between reinforced concrete cell body 13；The sunlight board greenhouse 8 is arranged on the top outer of armored concrete cell body 13,
And cover on the top of collection air film 10；One end of first escape pipe 12 is connected with the collection headroom, the first escape pipe 12
The other end passed inside the top plate of armored concrete cell body 13 after, pass through the first appendix 16 and marsh gas purifying stocking system
4 roots blower 53 connects；The first described stop valve 17 is arranged on the first appendix 16；Described one end of breather pipe 11 with
Collection headroom connection, the other end of breather pipe 11 are connected with the inside of armored concrete cell body 13；Described evacuated tube 7 is pacified
Mounted in the top of armored concrete cell body 13, one end of evacuated tube 7 is connected with the inside of armored concrete cell body 13, evacuated tube 7
The other end pass atmosphere behind sunlight board greenhouse 8, the middle part of evacuated tube 7 is provided with water-sealed valve 6；The hydraulic door 57 is set
At the oblong openings of armored concrete cell body 13；
Described solar heating system 2 includes：Expansion tank 9, high density extruded sheet 18, regenerative heat exchange water tank 19, water
Position meter 20, water-supply-pipe 21, row's case outlet pipe 22, row's case delivery port 23, air bleeding valve 24, radiator drain 25, water filling port 26, filtering
Device 27, circulating pump 28, check valve 29, row's case water inlet pipe 30, support 31, bracket 32, row's case 33, solar energy heat collection pipe 34 and water tank
Water inlet pipe 35；Critical piece solar energy heat collection pipe 34, the row's case 33 of described solar heating system 2 are arranged on fermentation tank 1
On the external wall of Chaoyang, the top of row's case 33 is connected with row's case outlet pipe 22, arranges bottom and the row's case water inlet pipe 30 of case 33
Connection；The expansion tank 9 is arranged on the top of armored concrete cell body 13, and expansion tank 9 passes through pipeline and regenerative heat exchange water
Case 19 connects；Described regenerative heat exchange water tank 19 is arranged on the internal ground of armored concrete cell body 13, regenerative heat exchange water tank
19 upper surface and the outside ground of armored concrete cell body 13 are contour；Described high density extruded sheet 18 is laid on regenerative heat exchange water
The bottom of case 19；The support 31 is arranged on the outside of the due south direction side wall of armored concrete cell body 13；The described He of bracket 32
Row's case 33 is fixedly mounted on support 31；The cecum of described solar energy heat collection pipe 34 is fixedly mounted in bracket 32, the sun
The openend of energy thermal-collecting tube 34 is fixedly mounted in the opening of row's case 33；The water filling port 26 is arranged on radiator drain 25 and mistake
On pipeline between filter 27；The water inlet of described circulating pump 28 is connected by filter 27 with radiator drain 25, circulation
The delivery port of pump 28 is connected by check valve 29 with row's case water inlet pipe 30；Row's case delivery port 23 passes through pipeline and water tank water intake
Pipe 35 connects；The air bleeding valve 24 is connected by threeway with row's case delivery port 23；The water-level gauge 20 is arranged on the top of row's case 33
Water-supply-pipe 21 on；
Described biogas slurry spray system 3 includes：Spiral nozzle 36, infusion pipeline 37, biogas slurry pond 38, biogas slurry pump 39, discharge opeing
Water seal 40, discharging tube 41 and collecting tank 42；Described spiral nozzle 36 is fixedly mounted on the inner top of armored concrete cell body 13；
The biogas slurry pond 38 is arranged on the outside of armored concrete cell body 13 and positioned at the below ground of the side of hydraulic door 57；The natural pond
Liquid pump 39 is arranged on the inner bottom part in biogas slurry pond 38；One end of the infusion pipeline 37 is connected with spiral nozzle 36, infusion pipeline 37
The other end be connected with the outlet of biogas slurry pump 39；The collecting tank 42 is arranged on fermentation tank 1 close to the bottom of the side of hydraulic door 57,
Collecting tank 42 is connected by discharging tube 41 with biogas slurry pond 38；The discharging tube 41 is provided with discharge opeing at the port in connection biogas slurry pond 38
Water seal 40；
Described marsh gas purifying stocking system 4 includes：Second stop valve 44, drain sump 45, digester 46, air inlet pipe 47,
Double film gas storage holders 48, torch 49, the second escape pipe 50, the 4th stop valve 51, the 3rd appendix 52 and roots blower 53；Described
The import of roots blower 53 is connected by the first appendix 16 with the first escape pipe 12, and the exit of roots blower 53 is provided with three
Logical, one of outlet is connected by the second stop valve 44 with drain sump 45, and one end and the drain sump 45 of the digester 46 connect
Connect, the other end of digester 46 is connected by air inlet pipe 47 with double film gas storage holders 48；The torch 49 passes through the second escape pipe 50
It is connected with double film gas storage holders 48；The 4th stop valve 51 is provided with second escape pipe 50；The one of 3rd appendix 52
End is connected with double film gas storage holders 48, and the other end of the 3rd appendix 52 is connected to user；
The aerating system 5 includes：Roots blower 53, the second appendix 54, the 3rd stop valve 43, aeration tube 55 in water tank
With aeration tube 56 outside water tank；Another outlet of the roots blower 53 is connected by the second appendix 54 with aeration tube in water tank 55
Connect；The 3rd stop valve 43 is provided with second appendix 54；Aeration tube 55 connects with the outer aeration tube 56 of water tank in the water tank
Connect；The outer aeration tube 56 of the water tank is arranged in the groove of the upper surface of regenerative heat exchange water tank 19, the end of the outer aeration tube 56 of water tank
It is provided with blind plugging.
Time switch is provided with the circulating pump 28.
The inner surface of the hydraulic door 57 is coated with polyurethane insulation coating 15, is welded with the circumferential side frame of hydraulic door 57 recessed
Groove 58, gas tube 59 is installed with groove 58.
The gas tube 59 is connected with air pump.
The water-sealed valve 6 includes U-tube, tapping valve 60, drainpipe 61 and water injection pipe 62；The tapping valve 60 is arranged on U
The bottom of shape pipe；The drainpipe 61 is located at the bottom of tapping valve 60；One end of the water injection pipe 62 is located at the top of U-tube,
The other end of water injection pipe 62 connects with the inside of U-tube.
The regenerative heat exchange water tank 19 is connected by valve with methane boiler.
A kind of method of work of cold area's garage type dry-type methane fermentation system, sent out using a kind of cold area's garage type dry-type methane
Ferment system, it is characterized in that：Comprise the following steps,
Step 1: solar energy system water filling
17:00 up to 5:When 00, the valve of opening air bleeding valve 24 and water-level gauge 20, the water filling into solar heating system 2,
After water-level gauge 20 shows that water fills, the valve of air bleeding valve 24 and water-level gauge 20 is closed, it is complete in the upper surface of solar energy heat collection pipe 34
Portion covers sunshade net；
Step 2: charging, sealing liquid pressure gate
Charged material into using forklift in fermentation tank 1, after forklift rolls away from, close hydraulic door 57, manually control inflator pump to
Injection air in gas tube 59 in hydraulic door 57, until pressure reaches 25kPa, stopping inflation in gas tube 59；
Step 3: the startup optimization of solar heating system 2
Sunshade net is removed, setting circulating pump 28 by time switch often operate 1 hour stalling 30 minutes,
Intensity of illumination is more than 30000lux, and the water temperature of regenerative heat exchange water tank 19 is less than 60 DEG C, opens time switch, make too
Positive energy temperature-increasing system 2 is continuously material and provides heat,
Intensity of illumination is more than 30000lux, and the water temperature of solar energy heat collection pipe 34 is higher than 70 DEG C or regenerative heat exchange water tank 19
Water temperature is higher than 60 DEG C, covers solar energy heat collection pipe 34 with sunshade net, avoids the temperature in fermentation tank 1 too high；
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank 19 is less than 60 DEG C, the row's of closing case outlet pipe 22
The valve of valve and row's case water inlet pipe 30, opens methane boiler valve, and burn methane boiler, and opens time switch, utilizes natural pond
Gas boiler heats to the water in regenerative heat exchange water tank 19 so that and temperature of charge maintains 50 DEG C~55 DEG C,
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank 19 is higher than 60 DEG C, the row's of closing case outlet pipe 22
The valve of valve and row's case water inlet pipe 30, closes methane boiler valve, stops circulating-heating；
Step 4: aerobic pretreatment
The first stop valve 17 and the 3rd stop valve 43 are opened, closes the second stop valve 44, was started every 7 hours~8 hours
Roots blower 53 is aerated to fermentation materials, aeration terminate after close roots blower 53, each aeration time be 25 minutes~
30 minutes, in aeration process, the air of suction was output in aeration tube by roots blower 53, the output pressure of roots blower 53
For 60kPa, air is passed through in fermentation materials through aeration tube outside water tank 56, and temperature sensor measurement material layer temperature, temperature of charge reaches
To 50 DEG C~55 DEG C, carry out in next step；
Step 5: envelope reactor carries out anaerobic fermentation
Tapping valve 60 is closed, by the water filling into water-sealed valve 6 of water injection pipe 62, until the water surface in water injection pipe 62 is higher than water filling
The junction of pipe 62 and U-tube, the water in water-sealed valve 6 seal evacuated tube 7, stop water filling, close the first stop valve 17 completely),
Carry out anaerobic fermentation.
Step 6: anaerobic fermentation discharges miscellaneous gas initial stage
The volumetric concentration of methane in sewage gas is detected, is miscellaneous gas when the volumetric concentration of methane in sewage gas is less than 50%, starts sieve
Miscellaneous gas is expelled to air by thatch blower fan 53 by evacuated tube 7；
Step 7: the purification storage of biogas
It more than 50% is qualified biogas that the volumetric concentration of methane in sewage gas, which is, opens the first stop valve 17 and the second stop valve
44, the 3rd stop valve 43 is closed, starts roots blower 53 and qualified biogas is extracted out and passes through digester 46 and drain sump 45 successively
Purification, be stored in double film gas storage holders 48, the purifying marsh gas in double film gas storage holders 48 is delivered to user's use, remaining purification
Biogas is burnt by torch 49, caused water and CO2It is emitted into air；
Step 8: anaerobic fermentation terminates, discharged
Start roots blower 53 to extract the gas in fermentation tank 1 out, until the pressure in fermentation tank 1 is equal to 0Pa, closing sieve
Thatch blower fan 53, tapping valve 60 is opened, the water in tapping valve 60 is discharged by drainpipe 61 out of water-sealed valve 6,
Roots blower 53 is again started up to continue to blast air into fermentation tank 1, and using biogas alarm in 7 mouthfuls of evacuated tube
Place's measurement, reach safety value for measured value when the volumetric concentration of methane is less than 0.4%, start hydraulic door 57, use biogas again
Alarm measures, and when the volumetric concentration of methane is less than 0.4%, then Environmental security in fermentation tank 1, forklift enter into fermentation tank 1
Row discharging.
In fermentation tank 1, the main body of fermentation tank 1 includes armored concrete cell body 13 and steel hydraulic door 57, is integrally formed
One totally enclosed rigid cell body.After the inner surface of armored concrete cell body 13 carries out three grey four slurries processing, in groove ceiling and side
Wall spray on polymer seals waterproof layer 14, and polyurethane heat-insulation is coated with polymeric seal waterproof layer 14 and the inner surface of hydraulic door 57
Layer 15, polyurethane insulation coating 15 is using the shaping of bicomponent material one step foaming, and Water-proof air-tight is good, and hardness is high；The top of fermentation tank 1
Portion is provided with water-sealed valve 6, and water-sealed valve 6 is made up of tapping valve 60, drainpipe 61, water injection pipe 62 and one section of U-shaped steel pipe, water injection pipe 62 from
The recess of U-tube extends vertically into U-tube, and certain distance is left in the bottom of water injection pipe 62 apart from U-tube bottom, in use, from note
Water pipe 62 is to the water filling of water-sealed valve 6, by a long strip shape object bulk measurement water surface elevation, until the water surface exceeds return bend and water injection pipe
62 bonding point, you can the sealing of reactor is realized, when fermentation generation at initial stage gas is impure or fermentation ends are, it is necessary to reactor
During interior gas emptying, the tapping valve 60 of the bottom of water-sealed valve 6 is opened, the water in valve is discharged by drainpipe 61, until the water surface is low
In return bend and the bonding point of water injection pipe 62, and it is higher than the bottom of water injection pipe 62, gas can be suitable by water-sealed valve 6 from evacuated tube 7
Profit discharge, and gas will not leak from water injection pipe 62, when gas pressure is too high in reactor, gas can from return bend with
The bonding point breakdown liquid level of water injection pipe 62 is spilled over to its exterior, to protect reactor assembly not destroyed, plays safety valve
Effect；Sunlight board greenhouse 8 is built in the top of fermentation tank 1, is used as framework using angle steel, is equipped with sunlight board on framework, building
Cost is relatively low, and the shade of sunlight board greenhouse 8 is advantageous to absorb solar energy, makes gas temperature in film in the outside of black collection air film 10
Rise, passes to material in reactor, to improve temperature of charge, gas passes through in fermentation period, reactor by aerating system 5
Breather pipe 11 is entered in film, by film heave state can substantially judge in reactor whether gassy, to carry out
Exhaust；Hydraulic door 57 is formed by I-steel and steel plate soldering, is arranged on the opening of fermentation tank 1, two companies are housed in hydraulic door
The cantilever of hydraulic system is connected to, by rising and falling for HYDRAULIC CONTROL SYSTEM hydraulic door, hydraulic door circumferential side frame welding fluted 58 will not
Circumferential side frame of the gas tube 59 of inflation along hydraulic door 57 be enclosed in groove 58, it is necessary to close the door sealing when, first control hydraulic pressure system
System closes hydraulic door 57, and air is then injected into gas tube 59 with small air pump, observes the pressure gauge in gas tube, until
Untill overpressure reaches 25kPa, you can complete the sealing of reactor.
In solar heat-exchange system 2, typically according to the concrete condition of row's case installing space, row's case is divided into n groups, in group
Row's case, which is adopted, to be connected serially, and takes parallel way to connect between row's case group, circuit design should meet the excessively stream of main pipe rail in parallel
Area is n times of bye-pass, can so ensure flow equalization between each branch road, and it is not smooth to prevent local circulation, generation gas
Change booster phenomenon；To before system water filling, water filling port 26 is connected to water pump, opens the valve of air bleeding valve 24 and water-level gauge 20, with
Just air in system is discharged as far as possible in the injecting process；In system operation, in the screen cloth of inspecting periodically filter 27
Whether impurity is had, to ensure that water circulation is unimpeded in system；Expansion tank 9 is arranged at the top of armored concrete cell body, is in system
Expansion space is provided during portion's water temperature rise；Heat energy transmission in solar heat-exchange system drives water circulation Lai real by circulating pump 28
It is existing, at daytime or fine day, circulating pump is opened, heat energy is delivered in water tank by solar energy heat collection pipe first, and water tank has fine
Thermolysis, a part of heat energy can be passed to material, another part is stored in water tank, night or it is cloudy when, close
Closed loop pump, the heat energy of the interior savings of water tank can continue as material and provide energy supplement, compensatory reactionBu Changfanying device energy dissipation, make reaction
Material maintains the fermentation temperature of equalization stable in device.
In biogas slurry spray system 3, biogas slurry will be injected in discharge opeing water seal 40 and not have the outlet of discharging tube 41 until liquid level, with
The gas in reactor is sealed, the biogas slurry oozed out from material imports collecting tank 42, and flows into discharge opeing water seal 40 by discharging tube 41
In, discharge opeing water seal 40 is filled with rear biogas slurry and trickled into biogas slurry pond 38, and by biogas slurry pump 39, biogas slurry is delivered to by infusion pipeline 37
Spiral nozzle 36, then be sprayed onto on material heap, the recycling of caused biogas slurry after material fermentation had both been realized, turn avoid biogas slurry
Secondary pollution to environment.
In marsh gas purifying stocking system 4, when caused gas needs discharge in system, it can use roots blower 53 will
Gas is extracted out in reactor, is stored in after digester 46 and drain sump 45 purify in double film gas storage holders 48, unnecessary gas can
Burnt by torch 49：Stop valve 51 is normally opened during normal work, when gas pressure is higher than 1.5kPa in double film gas storage holders 48
When, torch Auto-ignition System starting point, which is fought, controls magnetic valve to open, and biogas starts to burn, when gas in double film gas storage holders 48
When pressure is less than 0.5kPa, magnetic valve is closed automatically, stops burning.
In aerating system 5, aeration tube 55 passes through from regenerative heat exchange water tank 19 built in bottom land in water tank, so that water tank will
The heat energy of savings is transmitted to the gas in aeration tube, and caused gas in reactor can be passed through aeration tube in water tank by roots blower 53
55, by the heating of regenerative heat exchange water tank 19 built in bottom land, the outer aeration tube 56 of water tank is reached, then pass to from the bottom to top in material,
Penetrate material bed, play the effect of good mass-and heat-transfer.
The operating procedure of the system：
Step 1：The water filling of solar energy system：The valve of air bleeding valve 24 and water-level gauge 20 is opened, and noted into system
Water, water-level gauge 20 is observed, the valve of air bleeding valve 24 and water-level gauge 20 is closed after water fills.To prevent in solar energy heat collection pipe 34
The interaction of hot-air and cold water cause to burst, this step need to be carried out at morning or relatively low dusk environment temperature.After adding water,
Solar energy heating pipe surface should be covered sunshade net, avoid under not loop condition water temperature over-high in solar energy heat collection pipe.
Step 2：Charging, sealing liquid pressure gate：Charged material into using forklift in fermentation tank 1, close hydraulic door 57.By hydraulic pressure
Injection air in gas tube 59 on door 57, until pressure reaches 25kPa in gas tube 59.In order to ensure the sealing of fermentation tank
Property, the pressure in gas tube 59 is inspected periodically, such as less than 25kPa then injects air to it and its pressure is supplemented into 25kPa.
Step 3：The startup optimization of solar energy system：The time switch being connected with circulating pump 28 is set as circulating pump 28
1 hour of often operating stalls 30 minutes.Determine to be according to the temperature of charge in the water temperature of solar energy heat collection pipe 34 and fermentation tank 1
It is no to open switch, as temperature of charge is relatively low in groove under fine day situation, then open time switch；Such as rainy weather, then close too
The valve of positive energy heat-exchange system 2, opens methane boiler valve, and burn methane boiler, and opens time switch, utilizes methane boiler
To the water heating in regenerative heat exchange water tank 19.
Step 4：Aerobic pretreatment：The first stop valve 17 and the 3rd stop valve 43 are opened, closes the second stop valve 44, often
Fermentation materials are aerated every 7~8 hour on/off roots blowers 53, each aeration time 25 minutes~30 minutes,
In aeration process, air is sucked by air inlet pipe, is output to through roots blower 53 in aeration tube, output pressure 60kPa, empty
Gas is passed through in fermentation materials through aeration tube outside water tank 56, the air penetration bed of material, using temperature sensor measurement material layer temperature, until
Temperature of charge increases to 50 DEG C~55 DEG C.
Step 5：Seal reactor：The tapping valve 60 of water-sealed valve 6 is closed, injects water into water-sealed valve 6, until water surface height
In the bottom section top of the middle part U-tube of water-sealed valve 6, to seal evacuated tube 7, the first stop valve 17 is closed, carries out anaerobism hair
Ferment.
Step 6：Anaerobic fermentation discharges miscellaneous gas initial stage：It will pass through evacuated tube 7 by caused miscellaneous gas daily using roots blower 53
Emptying, reach more than 50% until producing methane content of bilogas.
Step 7：The purification storage of biogas：The first stop valve 17 and the second stop valve 44 are opened, closes the 3rd stop valve
43, biogas is extracted out caused by after using roots blower 53, the step 6 is terminated, by the net of digester 46 and drain sump 45
Change, be stored in double film gas storage holders 48, the biogas in double film gas storage holders 48 can be delivered to user's use, and unnecessary biogas can lead to
Cross torch 49 to burn, caused water and CO2It is emitted into air.
Step 8：Anaerobic fermentation terminates to discharge：The gas in fermentation tank 1 is extracted out with roots blower 53, until projection
Collect air film 10 and become depression, the water in water-sealed valve 6 is discharged, continue to blast air into groove, and emptying using biogas alarm
Tested at 7 mouthfuls of pipe, reach safety value for measured value when methane content is less than 0.4%, hydraulic door 57 is opened, treats air
Measured again with biogas alarm after in into groove, when methane content is consistently less than 0.4%, Environmental security in groove can
To be discharged with forklift.
Social benefit：
Present invention can ensure that the normal temperature of strain winter fermentation so that the Northeast also can be fine in the winter of cold
Ground handles the agriculture organic solid discarded object such as feces of livestock and poultry and agricultural crop straw, while produces biogas and green organic fertilizer.Natural pond
Gas can be used as production and life can, you can save fire coal, can reduce again and be discharged into atmosphere pollution SO2, flue dust etc.；Green is organic
Fertilizer is sold to periphery peasant, for planting vegetables, planting grain, can both reduce pest and disease damage, improved soil, can produce the organic food of green again
Product, good economic benefit is brought for peasant；The organic solid castoffs such as feces of livestock and poultry, agricultural crop straw can after effectively processing
Greatly reduce it to surface water, underground water, the pollution of atmospheric environment and microorganism pollution etc., improve rural area and urban environment matter
Amount.
Claims (6)
1. a kind of cold area's garage type dry-type methane fermentation system, it is characterized in that, including fermentation tank (1), solar heating system
(2), biogas slurry spray system (3), marsh gas purifying stocking system (4) and aerating system (5),
Described fermentation tank (1) includes:Water-sealed valve (6), evacuated tube (7), sunlight board greenhouse (8), collection air film (10), breather pipe
(11), the first escape pipe (12), armored concrete cell body (13), polymeric seal waterproof layer (14), polyurethane insulation coating (15),
First appendix (16), the first stop valve (17), hydraulic door (57), described armored concrete cell body (13) are hollow rectangular
Body structure, armored concrete cell body (13) is arranged on level ground and the side of armored concrete cell body (13) is towards due south
Direction, armored concrete cell body (13) are opened towards due east or towards rectangle of the side wall provided with a vehicles while passing of due west
Mouthful, the inside side wall of armored concrete cell body (13) and the surface spraying of ceiling have polymeric seal waterproof layer (14)；Described
The surface spraying of polymeric seal waterproof layer (14) has polyurethane insulation coating (15)；The collection air film (10) is fixed on reinforced concrete
The top outer of soil box body (13), it is collection headroom between collection air film (10) and armored concrete cell body (13)；The sunlight board
Greenhouse (8) is arranged on the top outer of armored concrete cell body (13), and covers on the top of collection air film (10)；Described first goes out
One end of tracheae (12) is connected with the collection headroom, and the other end of the first escape pipe (12) is from armored concrete cell body (13)
After being passed inside top plate, it is connected by the first appendix (16) with the roots blower (53) of marsh gas purifying stocking system (4)；It is described
The first stop valve (17) be arranged on the first appendix (16) on；Described breather pipe (11) one end connects with the collection headroom
Connect, the other end of breather pipe (11) is connected with the inside of armored concrete cell body (13)；Described evacuated tube (7) is arranged on reinforcing bar
The top of concrete cell body (13), one end of evacuated tube (7) are connected with the inside of armored concrete cell body (13), evacuated tube (7)
The other end pass sunlight board greenhouse (8) afterwards and atmosphere, be provided with water-sealed valve (6) in the middle part of evacuated tube (7)；The hydraulic pressure
Door (57) is arranged at the oblong openings of armored concrete cell body (13)；
Described solar heating system (2) includes：Expansion tank (9), high density extruded sheet (18), regenerative heat exchange water tank
(19), water-level gauge (20), water-supply-pipe (21), row's case outlet pipe (22), row's case delivery port (23), air bleeding valve (24), water tank water outlet
Manage (25), water filling port (26), filter (27), circulating pump (28), check valve (29), row's case water inlet pipe (30), support (31), support
Seat (32), row's case (33), solar energy heat collection pipe (34) and tank inlet pipe (35)；The expansion tank (9) is mixed installed in reinforcing bar
The top of solidifying soil box body (13), expansion tank (9) are connected by pipeline with regenerative heat exchange water tank (19)；Described regenerative heat exchange water
Case (19) is arranged on the internal ground of armored concrete cell body (13), the upper surface of regenerative heat exchange water tank (19) and reinforced concrete
The outside ground of soil box body (13) is contour；Described high density extruded sheet (18) is laid on the bottom of regenerative heat exchange water tank (19)；Institute
State the outside that support (31) is arranged on armored concrete cell body (13) due south direction side wall；Described bracket (32) and row's case (33)
It is fixedly mounted on support (31)；The top of row's case (33) is connected with row's case outlet pipe (22), the bottom of row's case (33)
It is connected with row's case water inlet pipe (30)；The cecum of described solar energy heat collection pipe (34) is fixedly mounted in bracket (32), solar energy
The openend of thermal-collecting tube (34) is fixedly mounted in the opening of row's case (33)；The water filling port (26) is arranged on radiator drain
(25) on the pipeline between filter (27)；The water inlet of described circulating pump (28) passes through filter (27) and water tank water outlet
(25) connection is managed, the delivery port of circulating pump (28) is connected by check valve (29) with row's case water inlet pipe (30)；Row's case water outlet
Mouth (23) is connected by pipeline with tank inlet pipe (35)；The air bleeding valve (24) is connected by threeway and row's case delivery port (23)
Connect；The water-level gauge (20) is arranged on the water-supply-pipe (21) above row's case (33)；
Described biogas slurry spray system (3) includes：Spiral nozzle (36), infusion pipeline (37), biogas slurry pond (38), biogas slurry pump
(39), discharge opeing water seal (40), discharging tube (41) and collecting tank (42)；Described spiral nozzle (36) is fixedly mounted on reinforced concrete
The inner top of soil box body (13)；The biogas slurry pond (38) is arranged on the outside of armored concrete cell body (13) and is located at hydraulic door
(57) below ground of side；The biogas slurry pump (39) is arranged on the inner bottom part of biogas slurry pond (38)；The infusion pipeline (37)
One end is connected with spiral nozzle (36), and the other end of infusion pipeline (37) is connected with the outlet of biogas slurry pump (39)；The collecting tank
(42) it is arranged on fermentation tank (1) and passes through discharging tube (41) and biogas slurry pond close to the bottom of hydraulic door (57) side, collecting tank (42)
(38) connect；The discharging tube (41) is provided with discharge opeing water seal (40) at the port of connection biogas slurry pond (38)；
Described marsh gas purifying stocking system (4) includes：Second stop valve (44), drain sump (45), digester (46), air inlet pipe
(47), double film gas storage holders (48), torch (49), the second escape pipe (50), the 4th stop valve (51), the 3rd appendix (52) and sieve
Thatch blower fan (53)；The import of described roots blower (53) is connected by the first appendix (16) with the first escape pipe (12), sieve
The exit of thatch blower fan (53) is provided with threeway, and one of outlet is connected by the second stop valve (44) with drain sump (45),
One end of the digester (46) is connected with drain sump (45), and the other end of digester (46) is stored up by air inlet pipe (47) and double films
Gas holder (48) connects；The torch (49) is connected by the second escape pipe (50) with double film gas storage holders (48)；Second outlet
The 4th stop valve (51) is provided with pipe (50)；One end of 3rd appendix (52) is connected with double film gas storage holders (48), the
The other end of three appendixs (52) is connected to user；
The aerating system (5) includes：It is aerated in roots blower (53), the second appendix (54), the 3rd stop valve (43), water tank
Manage (55) and the outer aeration tube (56) of water tank；Another outlet of the roots blower (53) passes through the second appendix (54) and water tank
Interior aeration tube (55) connection；The 3rd stop valve (43) is provided with second appendix (54)；Aeration tube in the water tank
(55) it is connected with the outer aeration tube (56) of water tank；The outer aeration tube (56) of the water tank is arranged on regenerative heat exchange water tank (19) upper surface
In groove, the end of the outer aeration tube (56) of water tank is provided with blind plugging；
The water-sealed valve (6) includes U-tube, tapping valve (60), drainpipe (61) and water injection pipe (62)；The tapping valve (60) sets
Put in the bottom of U-tube；The drainpipe (61) is located at the bottom of tapping valve (60)；One end of the water injection pipe (62) is located at U
The top of shape pipe, the other end of water injection pipe (62) connect with the inside of U-tube.
2. a kind of cold area's garage type dry-type methane fermentation system according to claim 1, it is characterized in that：The circulating pump
(28) time switch is provided with.
3. a kind of cold area's garage type dry-type methane fermentation system according to claim 1, it is characterized in that：The hydraulic door
(57) inner surface is coated with polyurethane insulation coating (15), and fluted (58), groove are welded in the circumferential side frame of hydraulic door (57)
(58) gas tube (59) is installed with.
4. a kind of cold area's garage type dry-type methane fermentation system according to claim 3, it is characterized in that：The gas tube
(59) it is connected with air pump.
5. a kind of cold area's garage type dry-type methane fermentation system according to claim 1, it is characterized in that：The regenerative heat exchange
Water tank (19) is connected by valve with methane boiler.
6. a kind of method of work of cold area's garage type dry-type methane fermentation system, utilize a kind of Han Qu as claimed in claim 1
Garage type dry-type methane fermentation system, it is characterized in that：Comprise the following steps,
Step 1: solar energy system water filling
17:00 up to 5:When 00, the valve of air bleeding valve (24) and water-level gauge (20) is opened, is noted to solar heating system (2) is interior
Water, after water-level gauge (20) shows that water fills, the valve of air bleeding valve (24) and water-level gauge (20) is closed, in solar energy heat collection pipe (34)
Upper surface all covering sunshade nets；
Step 2: charging, sealing liquid pressure gate
Charged material into using forklift in fermentation tank (1), after forklift rolls away from, close hydraulic door (57), control manually inflator pump to
Injection air in gas tube (59) in hydraulic door (57), until gas tube (59) interior pressure reaches 25kPa, stopping inflation；
Step 3: solar heating system (2) startup optimization
Sunshade net is removed, the hour stalling 30 minutes of circulating pump (28) often operating 1 is set by time switch,
Intensity of illumination is more than 30000lux, and the water temperature of regenerative heat exchange water tank (19) is less than 60 DEG C, opens time switch, make the sun
Energy temperature-increasing system (2) is continuously material and provides heat,
Intensity of illumination is more than 30000lux, and the water temperature of solar energy heat collection pipe (34) is higher than 70 DEG C or regenerative heat exchange water tank (19)
Water temperature is higher than 60 DEG C, and solar energy heat collection pipe (34) is covered with sunshade net；
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank (19) is less than 60 DEG C, the row's of closing case outlet pipe (22)
The valve of valve and row's case water inlet pipe (30), methane boiler valve is opened, burn methane boiler, and opens time switch, utilizes
Methane boiler heats to the water in regenerative heat exchange water tank (19), temperature of charge is maintained 50 DEG C~55 DEG C,
Intensity of illumination is less than 30000lux, and the water temperature of regenerative heat exchange water tank (19) is higher than 60 DEG C, the row's of closing case outlet pipe (22)
The valve of valve and row's case water inlet pipe (30), methane boiler valve is closed, stop circulating-heating；
Step 4: aerobic pretreatment
The first stop valve (17) and the 3rd stop valve (43) are opened, the second stop valve (44) is closed, was opened every 7 hours~8 hours
Dynamic roots blower (53) is aerated to fermentation materials, and aeration closes roots blower (53) after terminating, and each aeration time is 25
Minute~30 minutes, in aeration process, the air of suction is output in aeration tube by roots blower (53), roots blower (53)
Output pressure be 60kPa, air is passed through in fermentation materials through aeration tube outside water tank (56), temperature sensor measurement bed of material temperature
Degree, temperature of charge reach 50 DEG C~55 DEG C, carry out in next step；
Step 5: envelope reactor carries out anaerobic fermentation
Tapping valve (60) is closed, by water injection pipe (62) to water-sealed valve (6) interior water filling, until the water surface in water injection pipe (62) is higher than
The junction of water injection pipe (62) and U-tube, the water in water-sealed valve (6) seal evacuated tube (7), stop water filling, close first completely
Stop valve (17), carry out anaerobic fermentation.
Step 6: anaerobic fermentation discharges miscellaneous gas initial stage
The volumetric concentration of methane in sewage gas is detected, is miscellaneous gas when the volumetric concentration of methane in sewage gas is less than 50%, starts Roots's wind
Miscellaneous gas is expelled to air by machine (53) by evacuated tube (7)；
Step 7: the purification storage of biogas
It more than 50% is qualified biogas that the volumetric concentration of methane in sewage gas, which is, opens the first stop valve (17) and the second stop valve
(44), close the 3rd stop valve (43), start roots blower (53) by qualified biogas extract out and successively pass through digester (46) and
The purification of drain sump (45), it is stored in double film gas storage holders (48), the purifying marsh gas in double film gas storage holders (48) is delivered to user
Use, remaining purifying marsh gas is burnt by torch (49), caused water and CO2It is emitted into air；
Step 8: anaerobic fermentation terminates, discharged
Start roots blower (53) to extract the gas in fermentation tank (1) out, until the pressure in fermentation tank (1) is equal to 0Pa, closing
Roots blower (53), tapping valve (60) is opened, the water in tapping valve (60) is discharged by drainpipe (61) out of water-sealed valve (6),
Roots blower (53) is again started up to continue to blast air into fermentation tank (1), and using biogas alarm in evacuated tube (7)
Measured at mouthful, the volumetric concentration of methane is less than 0.4%, starts hydraulic door (57), is measured again with biogas alarm, the body of methane
Product concentration is less than 0.4%, then fermentation tank (1) interior Environmental security, forklift are discharged into fermentation tank (1).
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| CN108641937B (en) * | 2018-05-25 | 2024-01-30 | 李文跃 | Straw feed aerobic anaerobic fermentation equipment and application method thereof |
| CN110305784B (en) * | 2019-08-14 | 2023-07-21 | 吉林省农业机械研究院 | Spiral feeding container type semi-dry fermentation biogas equipment and application method thereof |
| CN112624544B (en) * | 2020-12-18 | 2023-12-05 | 吉林省农业机械研究院 | Horizontal stirring vertical tank livestock manure anaerobic fermentation equipment and application method thereof |
| CN114873838B (en) * | 2022-04-13 | 2024-06-07 | 扬州金威环保科技有限公司 | Kitchen waste water treatment equipment and treatment method |
| CN116179313A (en) * | 2023-03-28 | 2023-05-30 | 中国矿业大学 | Maximum biogas production system and maximum biogas production optimization method |
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| CN201358248Y (en) * | 2009-02-26 | 2009-12-09 | 卞为国 | Multi-unit sunshine heat-preservation type marsh gas tank |
| CN101624565B (en) * | 2009-08-03 | 2012-03-28 | 吴兆流 | Preparation of methane reactor |
| CN202193658U (en) * | 2011-06-24 | 2012-04-18 | 黑龙江龙能伟业燃气股份有限公司 | Dry-method anaerobic reactor |
| CN102533535B (en) * | 2012-03-16 | 2012-12-26 | 方朝阳 | Double heat energy heating biogas system |
| CN102634445B (en) * | 2012-05-03 | 2013-04-24 | 吉林省农业机械研究院 | Continuous dry-type methane fermenting device and methane preparing method |
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| CN204490889U (en) * | 2015-03-11 | 2015-07-22 | 乔选林 | Organic substance biogas fermentation device |
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