CN204569918U - A kind of high density anaerobic fermentation system - Google Patents
A kind of high density anaerobic fermentation system Download PDFInfo
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- CN204569918U CN204569918U CN201520225743.9U CN201520225743U CN204569918U CN 204569918 U CN204569918 U CN 204569918U CN 201520225743 U CN201520225743 U CN 201520225743U CN 204569918 U CN204569918 U CN 204569918U
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- 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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Abstract
The utility model discloses a kind of high density anaerobic fermentation system, the entrance of pre-treatment tank is connected with valve through material pipeline; The lower exit port of pre-treatment tank connects described horizontal fermentor tank by material pipeline through the first transferpump, above tank body, discharge port connects the first natural pond liquid pool by material pipeline and connects described vertical digester through valve, and the biogas of discharge port connects gas-holder through valve; Export above vertical type fermentation tank and connect the second natural pond liquid pool through valve; Reservoir outlet connects well heater through valve, and another outlet of gas-holder is connected to user through valve.The utility model adopts slow-revving screw mixing mode, achieves the anaerobic mixed fermentation under High Concentration Situation, solves the problem of material heat transfer, mass transfer difficulty.Meanwhile, in conjunction with the advantage of plug-flow anaerobic reactor and full-mixing type anaerobic reactor, the modular design of a whole set of fermentation system is achieved.
Description
Technical field
The utility model relates to
oneplant high density anaerobic fermentation system, belong to agricultural wastes treatment technology and biomass energy technology field.
Background technology
Producing methane through anaerobic fermentation technology, its principle is for fermentation bed material with organic waste (farming stalk, feces of livestock and poultry, solid-state fluorescence material etc.), under anaerobic, utilize anaerobion that the organism in organic waste is changed into biogas, liquid natural pond, remaining natural pond slag can be used as fertilizer for plant husbandry.
In recent years, along with the fast development of China's modern agriculture and the continuous propelling of urbanization strategy, the generation rapid development of organic waste.Especially under the overall background that the disposable energy is day by day exhausted and ecotope constantly worsens, biomass energy technology enjoys global concern, wherein again with producing methane through anaerobic fermentation technology maturation, most commercialized running basis the most.And raising fermentation concentration, improving material transformation efficiency, reduction system energy consumption are the important development directions of technical study and equipment research and development in this field always.
Improve fermentation materials concentration, directly cause stirring difficulty and energy consumption increasing, the heat transfer of material, mass transfer difficulty, and then affect microorganism and contact with the effective of material, problem occurs to cause the large and aerogenesis of the easy acidifying of fermentation starting overlong time, material, inoculum size unstable etc., seriously constrains the promotion and application of high density anaerobic fermentation technology.
In sum, low owing to there is fermentation substrate concentration, in traditional wet processing, fermentation substrate solid content is 6%, and gas producing efficiency is lower; And liquid pressure of dissolving in natural pond is large, water ratio > 92% in traditional wet processing, natural pond output of fluid is huge, dissolves ineffectively very easily to form secondary pollution.But improve fermentation substrate concentration, stirring difficulty and energy consumption increase again thereupon, very easily cause material heat transfer, mass transfer difficulty.
Utility model content
The purpose of this utility model is to provide a set of anaerobic reaction system, horizontal plug-flow technique and fully mixing zymotechnique (CSTR) are effectively integrated, realize high density (TS%=12 ~ 18%) hybrid anaerobic fermentation and high material transformation efficiency (60 ~ 85%), biogas and natural pond liquid backflow allotment fermentation materials is produced by anaerobically fermenting, carry out innoxious, the minimizing of agricultural organic waste, recycling treatment, realize the recycle of organic waste, alleviate secondary pollution and pressure of dissolving that a large amount of natural ponds liquid brings simultaneously.
The utility model takes following technical scheme to realize above-mentioned purpose.A kind of high density anaerobic fermentation system, comprise pre-treatment tank, horizontal fermentor tank, vertical digester and gas-holder, the entrance of described pre-treatment tank is connected with valve through material pipeline; The top of pre-treatment tank is provided with the first motor, and lower exit port connects described horizontal fermentor tank by material pipeline through the first transferpump; Horizontal fermentor tank is skewed, lower end is provided with the second motor, and being provided with discharge port above tank body, discharge port connects the first natural pond liquid pool by material pipeline and connects described vertical digester through valve, and above horizontal fermentor tank, the biogas of discharge port connects gas-holder through valve; The top of vertical digester is provided with motor, and exports the entrance being connected the second natural pond liquid pool by material pipeline through valve above tank body, and the outlet of the second natural pond liquid pool is connected the entrance of pre-treatment tank successively with valve through the 3rd transferpump by material pipeline; Reservoir outlet is connected with methane pipeline, and connects well heater through valve, and the methane pipeline of another outlet of gas-holder is connected to user through valve; Cold water pipeline above described pre-treatment tank is connected with the entrance of horizontal fermentor tank, vertical digester and well heater respectively; The outlet of well heater is connected with vertical digester, horizontal fermentor tank and pre-treatment tank through hot water line respectively by the 4th transferpump; The outlet of the second natural pond liquid pool connects the entrance of pre-treatment tank; Second transferpump of outlet on material pipeline of the first natural pond liquid pool is connected with vertical digester with valve, and the methane pipeline above vertical digester is connected with gas-holder through valve.
Further, the axis of described horizontal fermentor tank tank body is 4 ~ 8 ° with the horizontal sextant angle of ground basal plane.
Further, in described horizontal fermentor tank tank body, anaerobically fermenting temperature is 30-40 DEG C.
The natural pond liquid measure that the utility model produces is less, substantially for material pre-treatment, without dissolving pressure.Owing to adopting slow-revving screw mixing mode, achieve the anaerobic mixed fermentation under High Concentration Situation, solve the problem of material heat transfer, mass transfer difficulty.Meanwhile, in conjunction with the advantage of plug-flow anaerobic reactor and full-mixing type anaerobic reactor, the modular design of a whole set of fermentation system is achieved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model high density anaerobic fermentation system.
Fig. 2 is the mounting structure schematic diagram of horizontal fermentor tank in the utility model.
In figure: 100. pre-treatment tanks, 101. first motors, 200. horizontal fermentor tanks, 201. second motors, 202. discharge ports, 300. vertical digesters, 301. the 3rd motors, 400. gas-holder, 500. first natural pond liquid pools, 600. second natural pond liquid pools, 700. well heaters; α. horizontal sextant angle;
1,2,3,4,5,6,7,8,9 valves;
11. material pipelines, 12. cold water pipelines, 13. hot water lines, 14. methane pipelines;
21. first transferpumps, 22. second transferpumps, 23. the 3rd transferpumps, 24. the 4th transferpumps.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.See Fig. 1 to Fig. 2, a kind of high density anaerobic fermentation system, comprises pre-treatment tank 100, horizontal fermentor tank 200, vertical digester 300 and gas-holder 400, and the entrance of described pre-treatment tank 100 is connected with valve 1 through material pipeline 11; The top of pre-treatment tank 100 is provided with the first motor 101, and lower exit port connects described horizontal fermentor tank 200 by material pipeline 11 through the first transferpump 21; Horizontal fermentor tank 200 is in skewed, lower end is provided with the second motor 201, and above tank body, be provided with discharge port 202, discharge port 202 connects the first natural pond liquid pool 500 by material pipeline 11 and connects described vertical digester 300 through valve 4, and above horizontal fermentor tank 200, the biogas of discharge port 202 connects gas-holder 400 through valve 3; The top of vertical digester 300 is provided with the 3rd motor 301, and above tank body, exporting the entrance being connected the second natural pond liquid pool 600 by material pipeline 11 through valve 7, the outlet of the second natural pond liquid pool 600 is connected the entrance of pre-treatment tank 100 successively with valve 2 through the 3rd transferpump 23 by material pipeline 11; Gas-holder 400 outlet is connected with methane pipeline 14, and connects well heater 700 through valve 8, and the methane pipeline 14 of another outlet of gas-holder 400 is connected to user through valve 9; Cold water pipeline 12 above described pre-treatment tank 100 tank body is connected with the entrance of horizontal fermentor tank 200, vertical digester 300 and well heater 700 respectively; The outlet of well heater 700 is connected with vertical digester 300, horizontal fermentor tank 200 and pre-treatment tank 100 through hot water line 13 respectively by the 4th transferpump 24; The outlet of the second natural pond liquid pool 600 connects the entrance of pre-treatment tank 100; Second transferpump 22 of outlet on material pipeline 11 of the first natural pond liquid pool 500 is connected with vertical digester 300 with valve 5, and the methane pipeline 14 above vertical digester 300 is connected with gas-holder 400 through valve 6.The axis of described horizontal fermentor tank 200 tank body is 4 ~ 8 ° with the horizontal sextant angle α of ground basal plane.In described horizontal fermentor tank 200 tank body, anaerobically fermenting temperature is 30-40 DEG C.
Technical process of the present utility model is as follows:
1) bed material that ferments is delivered in pre-treatment tank 100 by material inlet, mixing and stirring under the effect that the first motor 101 drives agitating vane to rotate;
2) adjustment input concentration (TS%=12-18%), pH(6.8-7.4) and preheating (T=30-40 DEG C) after, pump into horizontal fermentor tank 200 from pre-treatment tank 100 material outlet through the first transferpump 21, carry out one-level anaerobically fermenting, and mixed fermentation under the second motor 201 drives the stirring action of agitating vane.Along with constantly pumping into of material, and material pushes to the afterbody of horizontal fermentor tank 200 gradually, fermentation residues (natural pond liquid/natural pond slag) enters the first natural pond liquid pool 500 by overflow manner from discharge port 202 or directly enters vertical digester 300 via material inlet, and mix under the 3rd motor 301 drives the stirring action of agitating vane, carry out B grade anaerobic fermentation, or according to practical situation, the resistates of the first natural pond liquid pool 500 is inputted in vertical type fermentation tank body 300 through material second transferpump 22;
3) resistates of second order fermentation is entered the second natural pond liquid pool 600 from resistates spillway by overflow manner, can be used as inoculation liquid afterwards and is delivered in pre-treatment tank 100 through the 3rd transferpump 23;
4) horizontal fermentor tank 200 enters gas-holder 400 by discharge port 202 through valve 3 and stores, and the biogas produced in vertical digester 300 enters gas-holder 400 from discharge outlet through valve 6 and stores.Biogas in gas-holder 400 is supplied to user.Separately have part biogas to heat for well heater 700 to use.The hot water that well heater 700 produces supplies pre-treatment tank 100, horizontal fermentor tank 200 and vertical digester 300 by the 4th transferpump 24 along hot water line 13, heats for tank body, maintains tank interior temperature and reaches operating requirement.Well heater 700 is a set of biogas and biomass fuel two burning type hot water boiler.The unloading phase of fermentation system, firing biomass fuel heating cycle water is that fuel heats recirculated water with biogas after biogas production is stable, namely in gas-holder 400 part biogas by methane pipeline 14 and well heater 700 UNICOM.
embodiment:a better embodiment of the present utility model is as follows: a kind of high density anaerobic fermentation system, horizontal fermentor tank 200 medullary ray and horizontal placement angle α get 5 °, agitating vane is welded on to be interposed between 300mm with spiral distribution extending longitudinally on stir shaft on stir shaft, between agitating vane with vertical angle, and two adjacent agitating vane centreline space angles get 30 °.Capping before the feed end of horizontal fermentor tank 200 is provided with, the second motor 201 is connected with stir shaft by front capping, establishes rear seal-cover at discharge end, ensures junction sealing.Stirring lodicule in horizontal fermentor tank 200 is welded on stir shaft with vertical angle; To be interposed between 0.3m with spiral distribution extending longitudinally on stir shaft between lodicule, and between lodicule, angle gets 30 °; Under the second motor 201 runs, stirring lodicule is driven to play abundant mix and blend effect by rotating stir shaft.Establish heating tube in horizontal fermentor tank 200, controlled by thermometer feedback temperature, anaerobically fermenting in horizontal fermentor tank 200 is run in 30-40 DEG C.Horizontal fermentor tank 200 lower head establishes opening for feed.Feed-pipe with enter along tank skin tangent line, be connected with outside Feed lines.Horizontal fermentor tank 200 upper rear establishes discharge port 202, and for firedamp drainage, biogas enters gas-holder 400 via methane pipeline 14.After liquid natural pond, natural pond slag adopts overflow manner to discharge from discharge port 202, enter in the first natural pond liquid pool 500 or vertical digester 300 via material pipeline 11 respectively, discharge port 202 can be used as the manhole of Maintenance and Repair simultaneously.
Solid content in organic waste is adjusted within the scope of 12-20%, after preheating, enter in horizontal fermentor tank 200 by opening for feed, material feeding amount in horizontal fermentor tank 200 is between 60-70%, start the first motor 201, along with the stirring of whipping appts and fresh material enter formation plug-flow, guarantee that material fully mixes in horizontal fermentor tank 200.Organic waste is under the effect of microorganism, and anaerobically fermenting produces biogas, enters gas-holder 400 stored, utilize via methane pipeline 14.Natural pond liquid, natural pond slag are then by material pipeline 11 overflow to the first natural pond liquid pool 500 or vertical digester 300, and wherein, natural pond liquid refluxes by material pipeline 11, as fresh material dilution water, to save system water resource consumption.In horizontal fermentor tank 200, anaerobically fermenting works under the condition of 30-40 DEG C, and by heating tube and thermometer, keeps temperature condition to stablize.Namely discharge port 202 is material outlet, and when being also maintenance of the equipment, trouble shooting, staff enters the passage of tank body.
The utility model is mainly applicable to the recovery energy of agricultural wastes (agricultural crop straw, feces of livestock and poultry), produces biogas by anaerobically fermenting.Innoxious, the minimizing of agricultural organic waste, recycling treatment can be carried out, realize the recycle of waste, produce without a large amount of natural ponds liquid, lower secondary pollution and pressure of dissolving that natural pond liquid measure brings greatly.It for core, is the anaerobic ferment devices realizing high density mixed fermentation, high material transformation efficiency with plug-flow anaerobic reactor+fully mixing reaction response device.High density anaerobic fermentation system divides three parts: first part is pre-treatment tank 100; Second section is the anaerobic fermentation process that horizontal fermentor tank 200 and vertical digester 300 are formed, and horizontal fermentor tank 200 adopts plug-flow technique to carry out one grade fermemtation, and vertical digester 300 adopts CSTR technique to carry out second order fermentation; The auxiliary facility that Part III is, comprises gas-holder 400, first, second natural pond liquid pool 600,700 and well heater 700.Wherein the fermentation substrate concentration of horizontal fermentor tank 200 is not less than 10%, can reach 18%.The utility model according to the actual requirements, can be selected collocation or increases and decreases the number of horizontal fermentor tank 200 and vertical digester 300 and the progression that ferments, realize high gravity fermentation and the high material transformation efficiency of fermentation materials.
Claims (3)
1. a high density anaerobic fermentation system, comprises pre-treatment tank, horizontal fermentor tank, vertical digester and gas-holder, it is characterized in that, the entrance of described pre-treatment tank is connected with valve through material pipeline; The top of pre-treatment tank is provided with the first motor, and lower exit port connects described horizontal fermentor tank by material pipeline through the first transferpump; Horizontal fermentor tank is skewed, lower end is provided with the second motor, and being provided with discharge port above tank body, discharge port connects the first natural pond liquid pool by material pipeline and connects described vertical digester through valve, and above horizontal fermentor tank, the biogas of discharge port connects gas-holder through valve; The top of vertical digester is provided with motor, and exports the entrance being connected the second natural pond liquid pool by material pipeline through valve above tank body, and the outlet of the second natural pond liquid pool is connected the entrance of pre-treatment tank successively with valve through the 3rd transferpump by material pipeline; Reservoir outlet is connected with methane pipeline, and connects well heater through valve, and the methane pipeline of another outlet of gas-holder is connected to user through valve; Cold water pipeline above described pre-treatment tank is connected with the entrance of horizontal fermentor tank, vertical digester and well heater respectively; The outlet of well heater is connected with vertical digester, horizontal fermentor tank and pre-treatment tank through hot water line respectively by the 4th transferpump; The outlet of the second natural pond liquid pool connects the entrance of pre-treatment tank; Second transferpump of outlet on material pipeline of the first natural pond liquid pool is connected with vertical digester with valve, and the methane pipeline above vertical digester is connected with gas-holder through valve.
2. high density anaerobic fermentation system according to claim 1, is characterized in that, the axis of described horizontal fermentor tank tank body is 4 ~ 8 ° with the horizontal sextant angle of ground basal plane.
3. high density anaerobic fermentation system according to claim 1, is characterized in that, in described horizontal fermentor tank tank body, anaerobically fermenting temperature is 30-40 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520225743.9U CN204569918U (en) | 2015-04-15 | 2015-04-15 | A kind of high density anaerobic fermentation system |
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| CN201520225743.9U CN204569918U (en) | 2015-04-15 | 2015-04-15 | A kind of high density anaerobic fermentation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728343A (en) * | 2017-04-21 | 2018-11-02 | 眉山瑞龙农业科技有限公司 | A kind of horizontal tank for sewage gas and its fermentation process |
| CN108929849A (en) * | 2018-08-13 | 2018-12-04 | 南昌大学 | Triphase multilevel large arch dam organic waste anaerobic fermentation system and its production biogas method |
| CN110055172A (en) * | 2019-04-22 | 2019-07-26 | 上海市环境科学研究院 | A kind of agricultural wastes dry anaerobic fermentation self-con-tained unit and autocontrol operation method |
-
2015
- 2015-04-15 CN CN201520225743.9U patent/CN204569918U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728343A (en) * | 2017-04-21 | 2018-11-02 | 眉山瑞龙农业科技有限公司 | A kind of horizontal tank for sewage gas and its fermentation process |
| CN108929849A (en) * | 2018-08-13 | 2018-12-04 | 南昌大学 | Triphase multilevel large arch dam organic waste anaerobic fermentation system and its production biogas method |
| CN110055172A (en) * | 2019-04-22 | 2019-07-26 | 上海市环境科学研究院 | A kind of agricultural wastes dry anaerobic fermentation self-con-tained unit and autocontrol operation method |
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Granted publication date: 20150819 Termination date: 20210415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |