CN100582063C - Method and device for producing firedamp - Google Patents

Method and device for producing firedamp Download PDF

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Publication number
CN100582063C
CN100582063C CN200610113884A CN200610113884A CN100582063C CN 100582063 C CN100582063 C CN 100582063C CN 200610113884 A CN200610113884 A CN 200610113884A CN 200610113884 A CN200610113884 A CN 200610113884A CN 100582063 C CN100582063 C CN 100582063C
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China
Prior art keywords
compost
methane
generating pit
submersible pump
aerobic fermentation
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Expired - Fee Related
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CN200610113884A
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CN101165010A (en
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董仁杰
郭建斌
张海勤
李湘
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China Agricultural University
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China Agricultural University
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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
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

The present invention discloses marsh gas producing process and apparatus, and belongs to the field of environment engineering and energy source technology. The technological scheme includes setting aerobically fermented compost around the anaerobic fermenter. The marsh gas producing apparatus includes one marsh gas tank, one outer cover with space for holding the aerobically fermented compost between the outer wall of the marsh gas tank and the outer cover, one first submersible pump with one jet in the upper part inside the marsh gas tank, one compost filter below the compost, and one second submersible pump with outlet inside the marsh gas tank below the compost filter. The present invention can ensure the temperature for anaerobic fermentation in winter and the organic material supply, so as to produce marsh gas and fertilizer in high yield and protect environment.

Description

A kind of biogas production method and device
Technical field
The present invention relates to a kind of biogas production method and device, relate in particular to the method and apparatus that aerobic compost and anaerobically fermenting are handled organic waste, belong to environmental engineering and energy field.
Background technology
In recent years, China constantly transforms and has developed a series of new pond types and novel process on widespread use hydraulic type domestic methane tank basis, has formed large-sized biogas fermentation reactors such as comprising anaerobic digestor.And present popular domestic methane tank all multiple changing types of mainly being divided into hydraulic type and cover-floating type two Da Chi types and developing on this basis and are in the world promoted the plastics bag methane-generating pit of comparatively small amt in addition.These methane-generating pit ubiquity leavening temperatures are subjected to ectocine bigger, and gas production rate changes also problem greatly.In China, the north of china in winter temperature is low excessively, and can cause can't aerogenesis, even in south, methane-generating pit in the winter time under the normal temperature factor of created gase also very low.This is the major reason that present methane-generating pit can't large-scale promotion be opened.And the methane-generating pit (measures such as biogas heating, electrically heated) of employing temperature controlling instruments because its cost is too high, also can't carry out big face promotion and application.On the other hand, in vast rural area, the bulk deposition of waste and feces of livestock and poultry causes environmental stress.
Stalk and mud are blended in a large amount of heat of generation in the aerobic composting process and the organism of having degraded.If make it to combine, not only can produce biogas energy and organic fertilizer, and solve the pollution problem of stalk and feces of livestock and poultry with anaerobic process.
Summary of the invention
The objective of the invention is to provide a kind of new biogas production method and device, adopt this method and device to produce biogas, can improve gas production rate, and can obtain fertilizer, create extra economic benefit.
In order to reach the technical scheme that purpose of the present invention takes is that Unareobic fermentation and aerobic fermentation are combined, concrete grammar is, with the compost of aerobic fermentation be arranged on the anaerobically fermenting pond around, promptly the compost with aerobic fermentation wraps up the anaerobically fermenting pond, and the compost of aerobic fermentation provides heat for anaerobically fermenting; The natural pond liquid of methane-generating pit internal upper part is extracted out, drench down from upper end, aerobic fermentation compost zone, the liquid that passes the compost district is transported to the bottom of aerobic fermentation compost with heat and aerobic decomposition rest parts organism, again the liquid of aerobic fermentation compost bottom is sent into methane-generating pit.Therefore, present method can be supplied raw materials and heat to methane-generating pit.
A kind of biogas production device that adopts above-mentioned biogas production method comprises the methane-generating pit of anaerobically fermenting, it is characterized in that, is covered with shell at this methane-generating pit, leaves the space that can hold the aerobic fermentation compost between methane-generating pit outer wall and shell; Be provided with submersible pump I at the methane-generating pit internal upper part, what be connected with the outlet of this submersible pump I is shower nozzle, and this shower nozzle is positioned at the top of aerobic fermentation compost; Be provided with the compost filtration unit in the bottom of aerobic fermentation compost, be provided with submersible pump II below the compost filtration unit, the outlet of this submersible pump II feeds described methane-generating pit.
In the above-mentioned biogas production device, the compost filtration unit is for being distributed with the compost filtering bottom board of filter pore on it.
In the above-mentioned biogas production device, submersible pump I has filtration unit.
In the above-mentioned biogas production device, shower nozzle has one or more.
In the above-mentioned biogas production device, cover on shell on the methane-generating pit and be brick body cement structures or build up by metallic substance or plastic material.
The present invention is the pattern of aerobic compost and anaerobic fermentation reactor work in combination, because aerobic compost is surrounded methane-generating pit, and directly bring the heat that aerobic compost produces into methane-generating pit by round-robin water, improved the temperature in the methane-generating pit, solve the winter methane-generating pit because temperature low not aerogenesis or the few problem of gas production rate, and can realize mesophilic digestion.The employing of two submersible pumps, realized the internal recycling of system, not only provide heat to anaerobically fermenting, and utilized by anerobe easily by the stalk after the aerobic treatment by aerobic fermentation, replenished the required raw material of anaerobically fermenting, also provide moisture for aerobic fermentation.By the stalk after the aerobic treatment is the high-quality farmland fertilizer.Realized the mass-producing comprehensive utilization of stalk in the winter time, and, solved the feces of livestock and poultry problem of environment pollution caused simultaneously, can create favorable economic benefit for the Rural areas provides clean methane with energy and organic fertilizer.
Description of drawings
Fig. 1 is a sectional view of the present invention;
Fig. 2 is a vertical view of the present invention.
Specific embodiments
The present invention is described further with reference to the accompanying drawings below.
As shown in Figure 1,1 is submersible pump I, and it has filtration unit, 2 is submersible pump II, and 3 is water outlet, and 4 is hot water and the anaerobism nutrition that is flowed down by aerobic zone, 5 is aerobic zone, and 6 is methane outlet, and 7 is methane-generating pit, it is the anaerobically fermenting pond, 8 is rotary nozzle, and 9 is shell, and 10 is the air outlet, the top of 11 expression compost, 12 is the compost filtering bottom board.Submersible pump I is positioned at the top of methane-generating pit, and links to each other with rotating sprinkler 8 by pvc pipe, is provided with two shower nozzles in the present embodiment, submersible pump I with the liquor pump on methane-generating pit 7 tops to shower nozzle 8, shower nozzle 8 with this liquid equably under aerobic zone drenches.Submersible pump II is positioned at the bottom of aerobic zone, be communicated with bottom, anaerobically fermenting pond by pvc pipe, in order to have heat and organic liquid pumping in methane-generating pit 7 under will drenching by aerobic zone, make it not only as the high quality raw material of anaerobically fermenting, provide metastable temperature condition for it again simultaneously.Water outlet 3 is positioned at the bottom of aerobic zone 5, is in communication with the outside, and is used for unnecessary liquid waste is discharged.Aerobic zone 5 is the space of stalk and the fermentation of animal waste hybrid composting.Methane outlet 6 is in order to the discharge of biogas.In the present embodiment, the rectangular parallelepiped shell of shell 9 for plastering in brick, its top is movable, be used for filler with reload, in actual production, shell 9 can also adopt other materials to make, as plastics or metallic substance, the simplest is directly to wrap up compost with plastics film to form aerobic compost.Air outlet 10 communicates aerobic zone with the external world, for aerobic compost provides the air source.The compost filtering bottom board 12 that is distributed with filter pore on it is used for and will has heat and organic liquid leaks down, and is convenient to collect, and compost is played a supportive role.
As seen by above-mentioned, centre of the present invention is methane-generating pit (being the anaerobically fermenting pond), is aerobic compost on every side, for anaerobically fermenting provides heat and raw material.The natural pond liquid of methane-generating pit internal upper part is pumped by submersible pump (band filtration unit), and (being aerobic zone) upper end is drenched down by rotary nozzle from the compost zone, and the water that passes the compost district takes heat and aerobic decomposition rest parts organism to reactor bottom.These contain a large amount of heats and organic water is pumped into methane-generating pit by submersible pump again, for methane-generating pit is supplied raw materials and heat.Aerobic compost can be kept methane-generating pit relative constant temp on every side simultaneously, also helps promoting anaerobic reaction.Organic waste is transformed into fertilizer after treatment.
The present invention combines Unareobic fermentation and aerobic fermentation, with the compost of aerobic fermentation be arranged on the anaerobically fermenting pond around.Because can produce a large amount of heats in the aerobic fermentation process of compost, particularly in compost inside, temperature can reach the 65-70 degree usually.The present invention carries out compost on every side in the anaerobically fermenting pond, can improve anaerobically fermenting pond envrionment temperature on every side like this, to promote its aerogenesis.
The present invention utilizes stalk on every side in the anaerobically fermenting pond and partly separating ight soil carries out compost, not only can improve anaerobically fermenting pond envrionment temperature on every side, and be that anaerobic reaction is supplied raw materials and heat by the water circulation system of a sealing, produce a large amount of biogas and fertilizer, also help environment purification.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (6)

1. biogas production method, it is characterized in that, be that Unareobic fermentation and aerobic fermentation are combined, concrete grammar is, with the compost of aerobic fermentation be arranged on the anaerobically fermenting pond around, the natural pond liquid of methane-generating pit internal upper part is extracted out, drench down from upper end, aerobic fermentation compost zone, the liquid that passes the compost district is transported to the bottom of aerobic fermentation compost with heat and aerobic decomposition rest parts organism, again liquid is sent into methane-generating pit.
2. biogas production device that adopts above-mentioned biogas production method, the methane-generating pit that comprises anaerobically fermenting, it is characterized in that, be covered with shell at this methane-generating pit, between methane-generating pit outer wall and shell, leave the space that can hold the aerobic fermentation compost, be provided with submersible pump I at the methane-generating pit internal upper part, what be connected with the outlet of this submersible pump I is shower nozzle, and this shower nozzle is positioned at the top of aerobic fermentation compost; Be provided with the compost filtration unit in the bottom of aerobic fermentation compost, be provided with submersible pump II below the compost filtration unit, the outlet of this submersible pump II feeds described methane-generating pit.
3. biogas production device according to claim 2 is characterized in that, the compost filtration unit is for being distributed with the compost filtering bottom board of filter pore on it.
4. according to claim 2 or 3 described biogas production devices, it is characterized in that submersible pump I has filtration unit.
5. according to claim 2 or 3 described biogas production devices, it is characterized in that shower nozzle has one or more.
6. according to claim 2 or 3 described biogas production devices, it is characterized in that, cover on shell on the methane-generating pit and be brick body cement structures or build up by metallic substance or plastic material.
CN200610113884A 2006-10-20 2006-10-20 Method and device for producing firedamp Expired - Fee Related CN100582063C (en)

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Application Number Priority Date Filing Date Title
CN200610113884A CN100582063C (en) 2006-10-20 2006-10-20 Method and device for producing firedamp

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CN100582063C true CN100582063C (en) 2010-01-20

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101481270B (en) * 2009-02-13 2013-11-06 北京科技大学 Operation method for organic solid waste aerobic compost deodorizing nitrogen keeping apparatus
CN102329159A (en) * 2011-10-19 2012-01-25 沈阳师范大学 Biogas production method combined with production of organic fertilizer
CN102441557B (en) * 2011-10-21 2013-11-06 中国科学院过程工程研究所 Aerobic-anaerobic combined solid state fermentation device and fermentation method thereof
CN105802844B (en) * 2016-03-30 2017-10-31 嘉兴职业技术学院 A kind of heating stalk two-phase biogas fermentation device certainly
CN105647976B (en) * 2016-03-30 2022-07-15 嘉兴职业技术学院 Method for producing biogas by using chrysanthemum morifolium ramat waste
CN108017417A (en) * 2017-11-07 2018-05-11 中钢集团天澄环保科技股份有限公司 A kind of animal faeces wastes resource utilization system
CN110396008A (en) * 2019-08-05 2019-11-01 德州群峰机械制造有限公司 Container-type dry fermentation system
CN111875206B (en) * 2020-08-13 2022-09-06 来宾市农业科学院 Cow dung recycling system and method
CN112845531B (en) * 2021-01-22 2022-03-25 浙江师范大学 Anaerobic digestion treatment method for kitchen waste
CN112845533B (en) * 2021-01-22 2022-02-15 浙江师范大学 Kitchen waste disposal all-in-one machine
CN112625874B (en) * 2021-01-22 2023-08-25 浙江师范大学 Anaerobic digestion treatment system for kitchen waste
CN112592809B (en) * 2021-01-22 2023-08-25 浙江师范大学 Kitchen waste integrated treatment system based on coupling of biotechnology and energy

Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1412134A (en) * 2002-12-13 2003-04-23 南开大学 Urban domestic sewage treatment process and its method
CN1461808A (en) * 2002-05-27 2003-12-17 中国科学院生态环境研究中心 Treatment technology and device of producing methane from straw-stalk type cultural solid waste material

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1461808A (en) * 2002-05-27 2003-12-17 中国科学院生态环境研究中心 Treatment technology and device of producing methane from straw-stalk type cultural solid waste material
CN1412134A (en) * 2002-12-13 2003-04-23 南开大学 Urban domestic sewage treatment process and its method

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