CN206799606U - A kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas - Google Patents

A kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas Download PDF

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Publication number
CN206799606U
CN206799606U CN201720621422.XU CN201720621422U CN206799606U CN 206799606 U CN206799606 U CN 206799606U CN 201720621422 U CN201720621422 U CN 201720621422U CN 206799606 U CN206799606 U CN 206799606U
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China
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pond
biogas
methane
generating pit
slag bath
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CN201720621422.XU
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段国昌
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段国昌
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas, belong to sewage and poultry excrement and urine disposal technical field.It includes solid-liquid separation tank, methane-generating pit(8)With biogas residue pond(13), it is characterised in that:Solid-liquid separation tank includes thick slag bath(15), fine slag pond(6), membrane filtration pond(14)With middle pond (1), thick slag bath(15)With fine slag pond(6)Pass through siphon pipe (7) and methane-generating pit respectively(8)It is connected, ridge roof(18)On be also equipped with metal absorber plate(19), in metal absorber plate(19)Top is additionally provided with light penetrating panel(21), the biogas residue pond(13)The middle and upper part of wall passes through biogas residue discharge nozzle(12)With methane-generating pit(8)It is connected, biogas residue pond(13)Top passes through grating filter screen(11)With biogas slurry pond(10)It is connected, described biogas slurry pond(10)Methane-generating pit is led to provided with one(8)Biogas slurry pond siphon pipe(9).Sewage and feces of livestock and poultry are quickly generated biogas by the utility model by way of hot fermentation and automatic stirring.

Description

A kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas
Technical field
The utility model belongs to sewage and poultry excrement and urine disposal technical field, and in particular to a kind of full automatic high efficiency processing is dirty Water, excrement and the device for producing biogas.
Background technology
China is a large agricultural country, and agricultural wastes resource distribution is extensive, and wherein agricultural stalk annual production is more than 600,000,000 tons Left and right, it can about convert into 1.5 hundred million tons of standard coals as about 3.5 hundred million tons of the stalk of the energy.Industrial wastewater and fowl and livestock farm are discarded Thing can produce nearly 800 billion cubic meter of biogas, equivalent to 57,000,000 tons standard coals in theory.Biogas turns into fuel in China's rural areas Important component, it can not only solve the part energy problem in rural area, and aquaculture, planting industry can organically be melted It is integrated, forms green agriculture, environmental protection agricultural, promote the fast development of rural economy.Biogas technology has huge in China Development potentiality.According to expert calculation data, the tank for sewage gas of one 6-8 cubes of installation, can solve 5 mouthfuls family it is annual cook, warm oneself, The domestic energies such as illumination, bathing.Can economize on coal every year about 8000 pieces, about 230 degree of economize on electricity, 2 tons or so of fuel wood and stalk(Equivalent to 3.5 mu of forest covers), equivalent RMB can save more than 5000 yuan, while can also reduce the discharge of carbon dioxide, conserve forests Resource and prevention soil and water loss.Once equivalent to 300 jin nitrogenous fertilizer of caused biogas residue, 250 jin of phosphate fertilizer, 200 jin of potash fertilizer, contain 17 kinds Amino acid and various trace elements, there is significant prevention effect to 40 multiple kinds of crops pest and disease damages.
Under the conditions of biogas is organic substance in isolation air and keeps certain moisture, temperature, acid-base value etc., by a variety of micro- The decomposition of biology (be referred to as biogas bacterium) and it is caused.Biogas bacterium decomposition of organic matter produces the process of biogas, makes biogas send out Ferment.In marsh gas fermentation processes, fermentation raw material be both produce biogas matrix, be again methane fermentating microorganism depend on for existence support Expect source.Biogas fermentation material is quite varied and abundant, and in addition to mineral oil and lignin, the organic substance in nature is general The raw material of biogas fermentation, such as agricultural crop straw, people, animal and poultry manure, sanitary sewage are can serve as, industry and life have Machine waste etc..
Fermentation temperature in methane-generating pit is the key factor for influenceing biogas generation and factor of created gase height, within the specific limits, Temperature is high, and the vital movement of biogas microorganism is enlivened, and fermentation is smoothed out, and biogas produces soon, and factor of created gase is also high;Temperature is low, Biogas microbial activities power is poor, and the gas production rate of raw material is poor, or even not aerogenesis for a long time.It can be divided into according to the height of fermentation temperature Normal temperature fermentation, mesophilic digestion, three kinds of hot fermentation.Hot fermentation, optimum temperature are 50-60 DEG C, and every 1 cubic metre of pond holds, More than 2 cubic metres of daily gas;High concentration high temperature ferments daily gas up to 3.0-6.0 cubic meters;The optimum temperature of mesophilic digestion Degree is 30-35 DEG C, and every 1 cubic metre of pond holds, daily gas 0.4-0.9 cubic meters;The temperature of normal temperature fermentation is 10-30 DEG C, every 1 cube Meter Chi Rong, general tolerance of producing daily is 0.1-0.25 cubic meters.Because methane-generating pit is typically built in outdoor, by outdoor natural weather Influence, the hair wine made of broomcorn millet temperature of conventional methane-generating pit typically only has 10-35 DEG C, belongs to cold fermentation, therefore biogas yield is relatively low, and Reaction time is grown.
Stirring and influence biogas in methane-generating pit produce the key factor with factor of created gase height, the stirring of common methane-generating pit It is generally divided into three kinds of mechanical agitation, Gas Stirring and liquid agitation modes.Mechanical agitation is to reach to stir by mechanical device operating Mix purpose;Gas Stirring is to rush in biogas from bottom of pond portion, produces stronger gas backstreaming, reaches the purpose of stirring;Liquid Stirring is to extract zymotic fluid out from the discharge room of methane-generating pit, is then poured from feed pipe in methane-generating pit, produces stronger liquid and returns Stream, reach the purpose of stirring.It was verified that appropriate agitating mode and intensity, can make fermentation raw material be evenly distributed, enhancing is micro- Contact of the biology with raw material, it is allowed to obtain the chance increase of nutriment, increased activity, growth and breeding is vigorous, so as to improve production Tolerance.These three agitating modes that prior art uses still come with some shortcomings, if mechanical agitation and liquid agitation are, it is necessary to stir Mixing machine and delivery pump could complete, it is therefore desirable to increase equipment and energy resource consumption.And utilize Gas Stirring strength caused by biogas It is limited, it can not stir, make the yield of biogas reduce.
Utility model content
For deficiencies of the prior art, it is dirty that the purpose of this utility model is to provide a kind of full automatic high efficiency processing Water excrement and the device for producing biogas, its technical problems to be solved is to realize the automatical and efficient place of sewage and feces of livestock and poultry Reason, quickly generates biogas, moreover it is possible to realize sewage and poultry by way of hot fermentation and automatic stirring by sewage and feces of livestock and poultry The zero-emission of poultry manure.
To achieve the above object, the utility model uses following technical proposals:A kind of full automatic high efficiency processing sewage, excrement And the device of production biogas, including solid-liquid separation tank, methane-generating pit, biogas residue pond, described methane-generating pit bottom are in the right bottom rectangle of left height Shape, top are provided with ridge roof, and a biogas pipe is provided with the middle part of ridge roof, it is characterised in that:Described separation of solid and liquid Pond includes thick slag bath, fine slag pond, membrane filtration pond and middle pond, and described thick slag bath and fine slag pond are U-shaped round membrane filtration pond, The top of described thick slag bath is provided with charging aperture, and a siphon pipe, thick slag bath and fine slag pond are respectively provided with thick slag bath and fine slag pond It is connected respectively by siphon pipe with methane-generating pit, metal absorber plate is also equipped with described ridge roof, in metal absorber plate Top is additionally provided with light penetrating panel, and the space between metal absorber plate and light penetrating panel is vacuum layer, is connected with metal absorber plate Heat transfer unit (HTU) heat energy is passed in methane-generating pit, the middle and upper part of the biogas residue bay wall body is connected by biogas residue discharge nozzle with methane-generating pit It is logical, biogas slurry pond is additionally provided with beside described biogas residue pond, biogas residue pond top is connected by grating filter screen with biogas slurry pond, described Biogas slurry pond is provided with a biogas slurry pond siphon pipe for leading to methane-generating pit, is provided with the siphon pipe of biogas slurry pond and only allows biogas slurry to be back to biogas The one-way control valve in pond.
Thick slag bath described in the utility model is connected by first of grating filter screen with fine slag pond, and fine slag pond passes through the Two grating filter screens are connected with membrane filtration pond, and the top in membrane filtration pond is provided with drinking-water pipe, membrane filtration pond by drinking-water pipe with Middle pond is connected.
The siphon pipe of thick slag bath described in the utility model is in several shape, and its entrance is located at the bottom of thick slag bath, and its outlet is set The bottom of methane-generating pit and the mouth of pipe it is upward.
The siphon pipe in fine slag pond described in the utility model is in several shape, and the entrance of siphon pipe is located at the bottom in fine slag pond, rainbow The outlet of suction pipe is located at the U-shaped middle part for extending up to methane-generating pit behind the bottom of methane-generating pit.
Compared with prior art, the beneficial effects of the utility model have:
1st, the density of charging is ensured.The utility model passes through thick slag bath and fine slag pond due to provided with solid-liquid separation tank Filtration, can improve the density into feed liquid in methane-generating pit, and the increase of density makes raw material fermentation time in methane-generating pit Shorten, fermentation process heating it is obvious, and raw material density increases and causes charging reductions, warm in feed liquid Quality advance, methane-generating pit Drop reduces.
2nd, high temperature Rapid Fermentation can be realized when biogas slurry is fermented in Methane-generating pit.The utility model is due in the herringbone room of methane-generating pit Metal absorber plate is equipped with top, light penetrating panel is additionally provided with metal absorber plate, the heat energy that metal absorber plate absorbs passes through biography Thermal is constantly passed to methane-generating pit, and the lower bottom part of methane-generating pit and outside use new moisture-proof heat-insulation plate, the heat conduction of thermal insulation board Coefficient is below 0.03w/mk, and for pond body just as a heat-accumulator tank, temperature is constant, heat energy loss very little, plus raw material in pond Temperature caused by fermentation, the demand of high temperature ferment at constant temperature is reached.Temperature summer can reach more than 55 DEG C in methane-generating pit, winter More than 35 DEG C are can reach, reaches the temperature requirement of high medium temperature constant temperature Rapid Fermentation, therefore the fermentation of raw material is decomposed the cycle and is made Dosage respectively reduces more than one times.
3rd, methane-generating pit realizes automatical and efficient mixing effect by rational layout of beam line during aerogenesis and with gas And the circulation of feed liquid.The utility model methane tank gas production and with, by the pressure change of methane-generating pit itself, realizing raw material, natural pond during gas Liquid, biogas residue and the automatic of activated sludge are well mixed, it is not necessary to external impetus, without consuming the energy, can reach ideal Mixing effect.The utility model is during with gas, and pressure can reduce in methane-generating pit, is at this moment well mixed in solid-liquid separation tank People stores excrement, activated sludge is entered in methane-generating pit by siphon pipe, and provides supply gas pressure, due to stronger in siphon piping Liquid backflow power, can will be distributed obvious scum layer, supernatant layer, active layer and sediment layer and break, reach very in methane-generating pit The effect of ideal stirring;Secondly for user during with gas, the biogas slurry in biogas slurry pond enters natural pond by the pipeline provided with check valve Gas pond, there is provided biogas pressure simultaneously realizes the effect that scum layer is broken and stirred in methane-generating pit.Methane-generating pit is in aerogenesis and the mistake with gas The automatic well mixed of raw material, biogas slurry, biogas residue and activated sludge is realized by the pressure change of itself in journey.
4th, the organic matter in sewage and feces of livestock and poultry can be made to obtain pre fermentation in solid-liquid separation tank, save sewage and livestock and poultry Fermentation time of the excrement in methane-generating pit.The utility model passes through siphon pipe and methane-generating pit phase respectively due to thick slag bath and fine slag pond Connection, when pressure of the methane-generating pit in gas generation process in pond is more than solid-liquid separation tank, biogas slurry and activated sludge in methane-generating pit Enter further through siphon pipe in solid-liquid separation tank and mixed with raw material, and gas pressure and gas storage space are provided for methane-generating pit, Sewage and feces of livestock and poultry is obtained pre fermentation, pretreatment in solid-liquid separation tank, make sewage and feces of livestock and poultry in methane-generating pit Fermentation time reduction more than half.Methane-generating pit is in gas generation process simultaneously, because biogas residue pond discharge nozzle is connected with methane-generating pit, natural pond The biogas residue and biogas slurry of gas pond tail bottom enter biogas residue pond by pipeline, and the biogas slurry in biogas residue pond enters natural pond further through grating filter screen Liquid pool.
5th, zero-emission can be realized during sewage and poultry excrement and urine disposal.The utility model precipitates in solid-liquid separation tank Sewage after filtering, cultivation colony house is back to use after generating reclaimed water by membrane filtration pond;Biogas residue caused by methane-generating pit enters biogas residue pond Become cripple, be fabricated to organic fertilizer use;The biogas slurry that biogas residue pond filters out is flowed back by the one-way control valve pipeline in biogas slurry pond To methane-generating pit.Therefore the utility model fully achieves the zero-emission of raw material, sewage, biogas slurry, biogas residue and activated sludge.
Brief description of the drawings
Fig. 1 is main view schematic cross-sectional view of the present utility model.
Fig. 2 is vertical view schematic cross-sectional view of the present utility model.
In figure, pond in 1-, 2- drinking-water pipes, 3- membrane modules, 4- second grating filter screens, first of grid filtration of 5- Net, 6- fine slags pond, 7- siphon pipes, 8- methane-generating pits, 9- biogas slurries pond siphon pipe, 10- biogas slurries pond, 11- grating filter screens, 12- biogas residues Pond discharge nozzle, 13- biogas residues pond, 14- membrane filtrations pond, the thick slag baths of 15-, 16- one-way control valves, 17- three-way connections, 18- herringbones room Top, 19- metal absorber plates, 20- biogas pipes, 21- light penetrating panels, 22- sunlight boards.23- charging apertures, 24- liquid-level switches, 25- prevent Tidal rip hot plate, 26- heat transfer unit (HTU)s.
Embodiment
A kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas described in the utility model, including U-shaped solid-liquid Separate tank, methane-generating pit, biogas residue pond, biogas slurry pond and middle pond.
Solid-liquid separation tank described in the utility model includes thick slag bath, fine slag pond, membrane filtration pond, described thick slag bath and thin Slag bath is U-shaped to be connected round membrane filtration pond, thick slag bath by first of grating filter screen with fine slag pond, and fine slag pond passes through Two grating filter screens are connected with membrane filtration pond, and the top in membrane filtration pond is provided with drinking-water pipe, membrane filtration pond by drinking-water pipe with Middle pond is connected.Sewage and feces of livestock and poultry first enter thick slag bath, described thick slag bath and fine slag from the charging aperture of thick slag bath A siphon pipe is respectively provided with pond, thick slag bath and fine slag pond are connected by siphon pipe with methane-generating pit respectively.The thick slag bath Siphon pipe is in several shape, and the entrance of siphon pipe is located at the bottom of thick slag bath, and the outlet of siphon pipe is located at bottom and the pipe of methane-generating pit Mouth is upwards;The siphon pipe in the fine slag pond is in several shape, and the entrance of siphon pipe is located at the bottom in fine slag pond, and the outlet of siphon pipe is set In the bottom of methane-generating pit, the U-shaped middle part for extending up to methane-generating pit of the mouth of pipe.When the pressure in methane-generating pit is more than solid-liquid separation tank When, biogas slurry and activated sludge in methane-generating pit enter solid-liquid separation tank by siphon pipe, and for biogas pipe provide gas pressure and Gas storage space, raw material is well mixed rear first pre fermentation, pretreatment in solid-liquid separation tank, make fermentation of the raw material in methane-generating pit Time at least shortens more than half.When biogas slurry of the user during with gas in biogas slurry pond is entered by the pipeline provided with check valve Methane-generating pit, there is provided biogas pressure and the effect for realizing liquid agitation in methane-generating pit, while be well mixed in U-shaped solid-liquid separation tank People stores excrement, activated sludge is entered in methane-generating pit by siphon pipe, and provides supply gas pressure, due to stronger in siphon piping Liquid flows back power, obvious scum layer, supernatant layer, active layer and sediment layer will be distributed in methane-generating pit break and reach ideal The effect of stirring.It is heat-insulated using the suction of transparent sunlight board at the top of solid-liquid separation tank, prevent heat energy from largely being flowed in rainy season, night and winter Lose.
Methane-generating pit bottom described in the utility model is in the right bottom oblong-shaped of left height, and top is provided with ridge roof, on roof The centre position at top is provided with a biogas pipe, and metal absorber plate is also equipped with the ridge roof of methane-generating pit, is absorbed heat in metal Light penetrating panel is additionally provided with above plate, the space between metal absorber plate and light penetrating panel is vacuum layer.What metal absorber plate absorbed Heat energy is passed in methane-generating pit by heat transfer unit (HTU), and methane-generating pit lower bottom part and periphery are heat-insulated by moisture-proof heat-insulation plate.Such methane-generating pit Interior temperature summer can reach more than 55 DEG C, can realize high temperature Rapid Fermentation;Winter can reach more than 35 DEG C, realize that medium temperature is fast Speed fermentation.The construction of biomass pool body can use fiberglass, brick, concreting or the assembling of other new materials, pond body and match somebody with somebody The size of set facilities and equipment can be scaling up or reduce according to raw material and place actual conditions.
The middle and upper part of biogas residue bay wall body described in the utility model is connected by biogas residue discharge nozzle with methane-generating pit, biogas residue discharging Pipe can be set to 2, wherein a conduct is standby, the mouth of pipe of biogas residue discharge nozzle can be adjusted up and down.Also set beside described biogas residue pond There is biogas slurry pond, biogas residue pond top is connected by grating filter screen with biogas slurry pond.Will by grid on biogas residue pond pond body top Biogas slurry is filled into biogas slurry pond, unified cleaning production organic fertilizer reuse after the biogas residue deposition in biogas residue pond is full.When pressure in methane-generating pit During reduction, the biogas slurry in biogas slurry pond can be entered in methane-generating pit by the siphon piping provided with one-way control valve.Used at the top of biogas slurry pond Transparent sunlight board suction is heat-insulated, prevents heat energy to be largely lost in rainy season, night and winter.
The U-shaped solid-liquid separation tank of the utility model, biogas residue pond, methane-generating pit and biogas slurry pond are by pipeline communication, when biogas slurry pond Liquid level in highest order, the liquid level of solid-liquid separation tank inner membrance filtering ponds is also close to highest order, substantially from pond body skin suitable for reading 20cm or so, at this moment the liquid-level switch in membrane filtration pond closed, the pump startup that draws water is until pumping 1/ in U-shaped solid-liquid separation tank body 2 sewage, it is ensured that thick slag during charging, in fine slag pond organic matter density.
The utility model can lift temperature in methane-generating pit and improve feed liquid density, plus preferable mixing effect, So that the gas producing efficiency of methane-generating pit lifts more than 10 times than common methane-generating pit, the cycle is decomposed in the fermentation of raw material and usage amount reduces 1- 2 times.
The utility model is in the case of raw material abundance, one 5 cubic metres of methane-generating pit, 10 cubic metres of summer daily gas with On, more than 5 cubic metres of winter daily gas, every cube of biogas can generate 2.2-2.5 degree electricity.And same one 5 cubic metres general Logical methane-generating pit, 1 cubic metre or so of summer daily gas, 0.5 cubic metre or so of winter daily gas, the utility model for gas production More than more than 10 times of common methane-generating pit.

Claims (4)

1. a kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas, including solid-liquid separation tank, methane-generating pit(8)And natural pond Slag bath(13), described methane-generating pit(8)Bottom is in the right bottom oblong-shaped of left height, and top is provided with ridge roof(18), in herringbone room The middle part on top (18) is provided with a biogas pipe(20), it is characterised in that:Described solid-liquid separation tank includes thick slag bath(15), fine slag Pond(6), membrane filtration pond(14)With middle pond (1), described thick slag bath(15)With fine slag pond(6)It is U-shaped round membrane filtration pond (14), described thick slag bath(15)Top be provided with charging aperture(23), thick slag bath(15)With fine slag pond(6)Inside it is respectively provided with a rainbow Suction pipe(7), thick slag bath(15)With fine slag pond(6)Pass through siphon pipe (7) and methane-generating pit respectively(8)It is connected, described herringbone room Top(18)On be also equipped with metal absorber plate(19), in metal absorber plate(19)Top is additionally provided with light penetrating panel(21), metal suction Hot plate(19)With light penetrating panel(21)Between space be vacuum layer, with metal absorber plate(19)The heat transfer unit (HTU) being connected(26) Heat energy is passed to methane-generating pit(8)It is interior, the biogas residue pond(13)The middle and upper part of wall passes through biogas residue discharge nozzle(12)With methane-generating pit(8) It is connected, described biogas residue pond(13)Side is additionally provided with biogas slurry pond(10), biogas residue pond(13)Top passes through grating filter screen(11) With biogas slurry pond(10)It is connected, described biogas slurry pond(10)Methane-generating pit is led to provided with one(8)Biogas slurry pond siphon pipe(9), Biogas slurry pond siphon pipe(9)Being provided with only allows biogas slurry to be back to methane-generating pit(8)One-way control valve(16).
2. a kind of full automatic high efficiency processing sewage according to claim 1, excrement and the device for producing biogas, its feature exist In:Described thick slag bath(15)Pass through first of grating filter screen(5)With fine slag pond(6)It is connected, fine slag pond(6)Pass through second Road grating filter screen(4)With membrane filtration pond(14)It is connected, membrane filtration pond(14)Top be provided with drinking-water pipe(2), membrane filtration pond (14)Pass through drinking-water pipe(2)With middle pond(1)It is connected.
3. a kind of full automatic high efficiency processing sewage according to claim 1, excrement and the device for producing biogas, its feature exist In:The thick slag bath(15)Siphon pipe(7)In several shape, its entrance is located at thick slag bath(15)Bottom, its outlet is located at natural pond Gas pond(8)Bottom and the mouth of pipe it is upward.
4. a kind of full automatic high efficiency processing sewage according to claim 1, excrement and the device for producing biogas, its feature exist In:The fine slag pond(6)Siphon pipe(7)In several shape, siphon pipe(7)Entrance be located at fine slag pond(6)Bottom, siphon pipe (7)Outlet be located at methane-generating pit(8)Bottom after the U-shaped middle part for extending up to methane-generating pit.
CN201720621422.XU 2017-06-01 2017-06-01 A kind of full automatic high efficiency processing sewage, excrement and the device for producing biogas Expired - Fee Related CN206799606U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111003911A (en) * 2019-12-12 2020-04-14 句容市浩源生态农业科技有限公司 Full-automatic treatment system for livestock and poultry breeding excrement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111003911A (en) * 2019-12-12 2020-04-14 句容市浩源生态农业科技有限公司 Full-automatic treatment system for livestock and poultry breeding excrement

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