CN200981870Y - Combined marsh gas fermentation pool - Google Patents

Combined marsh gas fermentation pool Download PDF

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Publication number
CN200981870Y
CN200981870Y CNU2006201362119U CN200620136211U CN200981870Y CN 200981870 Y CN200981870 Y CN 200981870Y CN U2006201362119 U CNU2006201362119 U CN U2006201362119U CN 200620136211 U CN200620136211 U CN 200620136211U CN 200981870 Y CN200981870 Y CN 200981870Y
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marsh gas
stack retting
retting pond
pond
heat exchanger
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CNU2006201362119U
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Chinese (zh)
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栾龙
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the vessel
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M45/00—Means for pre-treatment of biological substances
    • C12M45/20—Heating; Cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
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  • Bioinformatics & Cheminformatics (AREA)
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  • Genetics & Genomics (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Biotechnology (AREA)
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  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
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  • Thermal Sciences (AREA)
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  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The utility model relates to a combined type methane fermenting tank for methane fermentation. In prior art, an external power arrangement is needed by the methane fermenting tank, the heat generated by the biomass itself in the aerobic fermentation process is not utilized to improve the fermentation temperature of the methane fermenting tank, and the pre-treating mode of the raw material solid-liquid separation is adopted, thereby the prior art improves the cost. The utility model comprises a waterlogged composted tank which is provided with a heat exchanger inside and an internal recycle type methane reactor, wherein the waterlogged composted tank is provided with a heat absorbing board inside, the reflux pipe in the methane reactor is provided with a heat exchanger, the pipelines of the heat absorbing board and the heat exchanger form a closed circulation pipeline which is provided with circulating liquid inside. Thereby the whole structure and process needs no external power and the methane solid raw material can be pretreated at the same time with waterlogged in the waterlogged composted tank which solves the contradiction of the feeding and tapping of the solid raw material, lows down the cost and greatly improves the methane application condition in the low-temperature area.

Description

A kind of combined marsh gas fermentation pool
Technical field
The utility model relates to a kind of combined marsh gas fermentation pool of biogas fermentation, is specifically a kind ofly can utilize multiple biomass to produce biogas as raw material, has the combined marsh gas fermentation pool of automatic heat riser.
Background technology
The various biogas fermentation pool structures that had the application of decades and updated as the biomass marsh gas technology of the alternative energy.As cited various marsh gas reactors in the open source literature " biogas practical technique ".These marsh gas reactors are improving the life condition of anaerobic activated sludge, improve the methane gas producing rate and all have certain effect.Simultaneously, the method that improves the employing of methane-generating pit temperature in the existing mesophilic digestion biomass pool structure is exactly heating under the thermal source situation, and patent " 200510016826 " is mentioned to solar water heater to come methane-generating pit is heated.Also be mentioned to waste heat that Germany utilizes the generating water coolant in the document " biogas practical technique " and carry out heating to methane-generating pit, these heating techniques all need power set to circulate.Defective is exactly all not adopt a kind of device to utilize biomass to go to improve the temperature of methane-generating pit fermentation from the heat that is produced in the process of aerobic fermentation.
In addition, when utilizing farm crop or processing of farm products Litter, inevitably be exactly the contradiction of raw material pit entry fermentation and deslagging as the biogas raw material.Because farm crop or processing of farm products Litter have a large amount of solid slags mostly, if pit entry fermentation will bring the difficulty of methane-generating pit scarfing cinder.The general pretreatment mode that raw material is carried out solid-liquid separation that adopts of existing technology has increased the cost that drops into so again.
The utility model content
The purpose of this utility model is to provide a kind of combined marsh gas fermentation pool that utilizes biomass to go to improve the temperature of methane-generating pit fermentation from the heat that is produced in the process of aerobic fermentation.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of combined marsh gas fermentation pool, its special character is: stack retting pond 1 and internal-circulation type marsh gas reactor 3 that described combined marsh gas fermentation pool is equipped with heat exchanger by inside constitute; In the described stack retting pond 1 absorber plate 2 is set; On the return line 8 in the described marsh gas reactor 3 heat exchanger 4 is set; The pipeline of absorber plate 2 and heat exchanger 4 constitutes the sealing and circulating pipeline, and circulating liquid is arranged in the circulation line.
Above-mentioned stack retting pond 1 has the inclined bottom structure, the bottommost setting in stack retting pond can flow into acidifying liquid after the fermentation in the stack retting pond discharge nozzle 6 of marsh gas reactor automatically, the opening for feed 7 of discharge nozzle is arranged on the return line 8 of marsh gas reactor, and its position is lower than 1 bottom, stack retting pond.
The above-mentioned discharge nozzle 6 that can automatically acidifying liquid after the fermentation in the stack retting pond be flowed into marsh gas reactor adopts siphon pipe.
Be provided with in the above-mentioned discharge nozzle 6 and prevent that a large amount of natural ponds liquid from flowing back to the reflux valve 9 in the stack retting pond.
Discharge port 11 settings of above-mentioned stack retting pond bottom discharge pipe can be blocked solid material and enter marsh gas reactor grid 5.
The above-mentioned absorber plate 2 in the stack retting pond is made of the certain distance that is provided with between many plates the serial or parallel connection of a plurality of plates.
In the absorber plate 2 in above-mentioned stack retting pond an auxiliary line 10 that links to each other with external pipeline is set, its pipeline is arranged with circulation line parallel, and interface can be communicated with other heating sources.
Above-mentioned heat exchanger plate 2 and the heat exchanger on the return line 4 adopt heat conduction good metal material.
The utility model is with respect to prior art, and its advantage is as follows:
1, the utility model removes to improve the automatic heat riser of the temperature of methane-generating pit fermentation by adopting a kind of biomass of utilizing from the heat that produced in the process of aerobic fermentation, thereby entire structure and process are without any need for exterior power.
2, the utility model is provided with a stack retting pond, and the biogas solid material has been carried out pre-treatment in stack retting, solved the charging of solid material and slag tap between contradiction, reduced cost simultaneously.
3, the utility model provides heat with auxiliary other type of heating, has guaranteed to guarantee under the situation that does not have the stack retting raw material the middle temperature operation of reactor.
Description of drawings
Fig. 1 is a combination biomass pool structure synoptic diagram of the present utility model;
Fig. 2 is a thermocirculator structural representation of the present utility model.
Reference numeral:
1-stack retting pond, 2-absorber plate, 3-internal recycle (IC) marsh gas reactor, 4-heat exchanger, 5-grid, 6-discharge nozzle, 7-opening for feed, 8-return line, 9-reflux valve, 10-auxiliary line;
Embodiment
Referring to Fig. 1, Fig. 1 is combination biomass pool structure synoptic diagram of the present utility model; The utility model combined marsh gas fermentation pool structure is made up of a stack retting pond 1 and an internal recycle (IC) marsh gas reactor 3.The 1 pair of biogas solid material in stack retting pond has carried out pre-treatment in stack retting, solved the charging of solid material and slag tap between contradiction.These farm crop or processing of farm products Litter carry out aerobic fermentation in the stack retting pond, and the acid solution after the fermentation is re-used as the biogas raw material and enters into the marsh gas reactor aerogenesis, have realized solid-liquid separation and pre-treatment to solid material; Simultaneously, the natural pond liquid that marsh gas reactor is discharged flows to the stack retting pond to carry out providing with microorganism the moisture of solid material is additional, quickens it and decomposes.
The utility model is provided with a kind of heat absorption and heat-releasing device, be installed in respectively in the stack retting pond 1 of farm crop or processing of farm products Litter and in the internal-circulation type marsh gas reactor 3, utilize the stack retting heat production of farm crop or processing of farm products Litter, absorber plate 2 absorbs this heat, emits heat in marsh gas reactor 3 by the heat exchanger 4 that is installed on the internal-circulation type marsh gas reactor return line again.The sealing and circulating pipeline that heat absorption and heat-releasing device are made up of the heat exchanger of being installed on absorber plate in the stack retting pond and the return line in marsh gas reactor constitutes, and can be described as thermocirculator.Add certain liquid working material in that pipeline is inner, the heat that raw material produced when this device was absorbed in stack retting, and heat taken in the marsh gas reactor, by the heat exchanger in the reactor heat is passed to natural pond liquid by return line, realize automated cycle.
The utility model makes up biomass pool structure by stack retting pond 1, absorber plate 2, and internal recycle IC marsh gas reactor 3, heat exchanger 4, grid 5, discharge nozzle 6, opening for feed 7, return line 8, reflux valve 9, auxiliary line 10, discharge port 11 is formed.Stack retting pond 1 be one can stack farm crop or processing of farm products Litter one around utilize the rectangle of material insulation or the pond of other shapes, both can be all also can be on the ground below terrace.Must be to have natural inclined plane and the liquid in the pond can be pooled to the discharge port of opening in minimum place 7 at the bottom of its pond.Discharge port 7 must assurance can flow to marsh gas reactor 3 with acid solution after the fermentation in the stack retting pond.So, no matter be that the stack retting pond is based upon on the ground or below the terrace, the bottom in stack retting pond must be a little more than the opening for feed of marsh gas reactor.When building stack retting pond and methane-generating pit, the position of bottom is slightly approached at the middle part that just absorber plate 2 is installed in the stack retting pond.As shown in Figure 1, the installation perpendicular to the ground of the absorber plate in the stack retting pond, the heat that is produced to guarantee absorbing stack retting to greatest extent.Absorber plate 2 is set in stack retting pond 1; On the return line 8 in the described marsh gas reactor 3 heat exchanger 4 is set; The pipeline of absorber plate 2 and heat exchanger 4 constitutes the sealing and circulating pipeline, and circulating liquid is arranged in the circulation line, is beneficial to heat-shift.
Acidifying liquid flows into the discharge nozzle 6 of marsh gas reactor after the bottommost setting with inclined bottom structure stack retting pond 1 can be automatically with the fermentation in the stack retting pond, discharge nozzle 6 adopts siphon pipe, the opening for feed 7 of discharge nozzle is arranged on the return line 8 of marsh gas reactor, and its position is lower than 1 bottom, stack retting pond.
In discharge nozzle 6, be provided with and prevent that a large amount of natural ponds liquid from flowing back to the reflux valve 9 in the stack retting pond and can block solid material and enter marsh gas reactor grid 5.
Absorber plate 2 in the stack retting pond is made up of the serial or parallel connection of a plurality of plates, the certain distance that is provided with between many plates.
Referring to Fig. 2, Fig. 2 is thermocirculator structural representation of the present utility model; Do not having under farm crop or the situation of agricultural-food Litter as raw material, an auxiliary line 10 that links to each other with external pipeline is set in the absorber plate 2 in stack retting pond, its pipeline is arranged with circulation line parallel, and interface can be communicated with other heating source pipelines; Realize said function as linking to each other it with solar water heater or boiler hot-water pipeline or generator cooling-water pipeline to the marsh gas reactor heating.
During work, farm crop after will shredding earlier or processing of farm products Litter, (pomace such as after the processing of some type then can directly be filled out the pond without this procedure) adds after an amount of lime water mixes and inserts the stack retting pond, tamp appropriateness, but more than the necessary absorber plate upper limb 80cm that guarantees to cover in the stack retting pond.Add a cover insulation on the stack retting pond and insert several ventpipes, guarantee ventilation.Carry out the fermentation of startup formula with human and animal excreta as initial natural pond liquid in the marsh gas reactor.Can consider during winter to carry out primary heating with hot water.To accelerate fermenting process.Raw material just can be brought up to temperature inside more than 30 degree after in a few days in the stack retting pond, and thermocirculator is just started working, and at this moment, the heated liquid in the absorber plate in the stack retting pond flows to the interior heat exchanger of marsh gas reactor, and conducts heat to reactor.Realization is to the heating of marsh gas reactor.After the methane gas producing process begins, the rising power of part natural pond liquid dependence biogas backflows in the stack retting pond automatically, so both can quicken the pile fermentation of raw material in the stack retting pond, the temperature at stack retting center can be reached about 50 degree, can be washed into a part of acidizing fluid marsh gas reactor again and replenish aerogenesis as new natural pond liquid through pile fermentation; In the entire work process,, pre-treatment and solid-liquid separation have also been realized so simultaneously to solid materials such as farm crop or processing of farm products Litters owing to have stopping of grid 5, the solid part of most of raw material all to stay in the stack retting pond.
The utility model can be selected different the stack retting pond shape and the degree of depth according to different type of feed and place environment.This process can be looked the time length that how much decides heating and heat preservation of raw material.After treating the core temperature reduction of raw material pile fermentation, can add the time that new raw material is kept its heating and heat preservation.All solid slags are handled in once clear pond when by the time summer is without stack retting.
Work more than the liquid level of design in order to ensure the natural pond liquid in the marsh gas reactor, make a part of natural pond liquid can discharge marsh gas reactor automatically and also can play the effect of washing away acidizing fluid in the stack retting pond.The rising pipe position of marsh gas reactor will be higher than the bottom in stack retting pond.In order to reach this purpose, need in the actual debugging marsh gas reactor rising biogas its drive the amount and the elevation of natural pond liquid, simultaneously because return line mobile driven acidizing fluid in the stack retting pond to the automatic feed of return line.
In addition, the typical thing that the utility model indication farm crop or agricultural-food Litter are general is that the pomace after stalk, green grass, the processing, the medicinal material slag after the processing etc. have solid form or thick highly filled material.When design stack retting pond, can accomplish both to have saved the feed parking space in conjunction with stacking and overall planning and designs such as other raw materials such as ight soil dried, green fodder, taken into account the digestion of solid material again.

Claims (8)

1, a kind of combined marsh gas fermentation pool is characterized in that: stack retting pond (1) and internal-circulation type marsh gas reactor (3) that described combined marsh gas fermentation pool is equipped with heat exchanger by inside constitute; Absorber plate (2) is set in the described stack retting pond (1); On the return line (8) in the described marsh gas reactor (3) heat exchanger (4) is set; The pipeline of absorber plate (2) and heat exchanger (4) constitutes the sealing and circulating pipeline, and circulating liquid is arranged in the circulation line.
2, a kind of combined marsh gas fermentation pool according to claim 1, it is characterized in that: described stack retting pond (1) has the inclined bottom structure, the bottommost setting in stack retting pond can flow into acidifying liquid after the fermentation in the stack retting pond discharge nozzle (6) of marsh gas reactor automatically, the opening for feed of discharge nozzle (7) is arranged on the return line (8) of marsh gas reactor, and its position is lower than bottom, stack retting pond (1).
3, a kind of combined marsh gas fermentation pool according to claim 1 and 2 is characterized in that: the described discharge nozzle (6) that can automatically acidifying liquid after the fermentation in the stack retting pond be flowed into marsh gas reactor adopts siphon pipe.
4, a kind of combined marsh gas fermentation pool according to claim 3 is characterized in that: be provided with in the described discharge nozzle (6) and prevent that a large amount of natural ponds liquid from flowing back to the reflux valve (9) in the stack retting pond.
5, a kind of combined marsh gas fermentation pool according to claim 3 is characterized in that: the setting of the discharge port (11) of described stack retting pond bottom discharge pipe can be blocked solid material and enter marsh gas reactor grid (5).
6, a kind of combined marsh gas fermentation pool according to claim 3 is characterized in that: described absorber plate in the stack retting pond (2) is made of the certain distance that is provided with between many plates the serial or parallel connection of a plurality of plates.
7, a kind of combined marsh gas fermentation pool according to claim 3, it is characterized in that: an auxiliary line (10) that links to each other with external pipeline is set in the absorber plate (2) in described stack retting pond, its pipeline is arranged with circulation line parallel, and interface can be communicated with other heating sources.
8, a kind of combined marsh gas fermentation pool according to claim 3 is characterized in that: the heat exchanger (4) on described heat exchanger plate (2) and the return line adopts heat conduction good metal material.
CNU2006201362119U 2006-11-24 2006-11-24 Combined marsh gas fermentation pool Expired - Lifetime CN200981870Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101838093A (en) * 2010-05-28 2010-09-22 昆明理工大学 Biogas odorless ventilation public toilet
CN101191116B (en) * 2006-11-24 2011-11-30 栾龙 Combined marsh gas fermentation pool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101191116B (en) * 2006-11-24 2011-11-30 栾龙 Combined marsh gas fermentation pool
CN101838093A (en) * 2010-05-28 2010-09-22 昆明理工大学 Biogas odorless ventilation public toilet
CN101838093B (en) * 2010-05-28 2012-12-05 昆明理工大学 Biogas odorless ventilation public toilet

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AV01 Patent right actively abandoned

Granted publication date: 20071128

Effective date of abandoning: 20061124