CN106497759A - A kind of anaerobic jar scum silica frost EGR - Google Patents

A kind of anaerobic jar scum silica frost EGR Download PDF

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Publication number
CN106497759A
CN106497759A CN201611083498.8A CN201611083498A CN106497759A CN 106497759 A CN106497759 A CN 106497759A CN 201611083498 A CN201611083498 A CN 201611083498A CN 106497759 A CN106497759 A CN 106497759A
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China
Prior art keywords
silica frost
scum silica
anaerobic jar
mozzle
egr
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CN201611083498.8A
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邹锦林
王艳明
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Priority to CN201611083498.8A priority Critical patent/CN106497759A/en
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M33/00Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
    • C12M33/04Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M45/00Means for pre-treatment of biological substances
    • C12M45/02Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Removal Of Floating Material (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a kind of anaerobic jar scum silica frost EGR, it is characterised in that the anaerobic jar scum silica frost EGR includes scum silica frost collection bucket, for collecting scum silica frost;Mozzle, for the scum silica frost that collects is transported to pipeline delumper, the mozzle is fixed on anaerobism tank wall;Pipeline delumper, for crushing big particle diameter and fibrous scum silica frost;Circulating pump, is back to anaerobism pot bottom for the scum silica frost after will be broken.Anaerobic jar scum silica frost EGR carries out scum silica frost collection by scum silica frost collection bucket at the liquid level of anaerobic jar top, fiber contained therein, big particle diameter impurity are crushed by pipeline delumper, pumped into from anaerobic jar bottom by circulating pump again, until scum silica frost is degraded, scum silica frost can be avoided to discharge in a large number causes the loss problem of organic matter, anaerobic jar biogas output can be increased, the flow of the circulatory system can be automatically adjusted by pump discharge according to scum silica frost content.

Description

A kind of anaerobic jar scum silica frost EGR
Technical field
The invention belongs to anaerobic fermentation processing technology field, is related to a kind of anaerobic jar scum silica frost EGR.
Background technology
Big-and-middle-sized scale changing food waste biofermentation gas engineering is widelyd popularize in China, and is formed The industrial system for beginning to take shape.The characteristics of due to changing food waste itself, in the single-phase wet type anaerobic fermentation gas engineering of high temperature, The needs of energy balance for needed for meeting generator waste heat supply anaerobic jar and heat, and study with reference to early stage factor of created gase, it is ensured that enter Material concentration TS >=8%.Material liquid containing higher TS concentration and high microsteping material (such as capsicum shell, pepper grain, bamboo and wood slag etc.) exists Lamination can be formed in anaerobic jar, and situations below can occur successively after layering:1) scum layer on top is due to cellulose Hydrolysis rate absorbs the soluble battalion in changing food waste first less than acid and methane phase speed, the microbes of apposition growth are produced Foster growth and breeding, and biomembrane is formed on the inert media surface for suspending;2) when the bond energy formed in water environment resists hydrolysis During effect, biomembrane can be in solid material superficial growth;3) with the increase of biomembranous thickness, in biomembrane microbes because For obtaining nutrition in time and self-dissolving, biomembranous floatability increases;4) can be inter-adhesive between two biomembranes, by anaerobic jar It is closed, biomembranous permeability is low;5) in anaerobism pot bottom, nutrient consumption tiny microbes totally produce bubble and Biomembrane bottom is floated and be gathered in, causes biomembrane to float;The biogas of generation as the reduction of crust layer permeability and In the accumulation of crust layer bottom, biomembrane floating is also resulted in;6) after biomembrane floats, lightweight material and life on liquid level Thing film then shrinks in the air chamber of anaerobism, is hardened, forming hard crust layer.The hard crust layer harm:11) cause anaerobism The methane accumulation produced in tank is obstructed, and biogas cannot be introduced into air chamber, thus biogas cannot be gathered;12) result even in floating Slag blocks discharge nozzle, as biogas is imflammable gas, anaerobic jar can be caused to burst, safe thing occurs after discharge nozzle is blocked Therefore.In sum, if scum silica frost can not be discharged in time, while layering with zymotic fluid in anaerobic jar, also can be over time Accumulation, more and more, exclude extremely difficult.Therefore, the formation of scum silica frost is just badly influencing anaerobic fermentation of kitchen waste system Often run, it is necessary to take reasonable effective measures will affect to be down to minimum.
In the prior art, people also invent multiple different processes and equipment attempts the scum silica frost to anaerobic jar and carries out Remove, its processing system, using the stirring etc. downwards of broken shell stirring, plug-flow, is all to re-mix to enter into scum silica frost in anaerobic jar In biogas slurry, then excluded with biogas slurry together.But these processing systems yet suffer from problem:1) shell breaking mixer service model Limit is with, when fermentation tank diameter increases, which is only capable of abolishing subregion scum silica frost.And pass through scum silica frost skimming device by the part Scum silica frost is excluded, and often makes the organic matter direct losses in scum silica frost;2) due to scum layer thicker when, scum silica frost can not be mixed into natural pond completely In liquid, therefore scum silica frost is excluded is less efficient;3) while scum silica frost is excluded, part biogas slurry is also eliminated, is had a strong impact on Stability in anaerobic jar.
Content of the invention
The purpose of the present invention is had problems according to above-mentioned existing anaerobic jar scum silica frost removal device, there is provided one kind is used for removing The anaerobic jar scum silica frost EGR of scum silica frost.
To achieve these goals, technical scheme is as follows:A kind of anaerobic jar scum silica frost EGR, its feature exist Include in the anaerobic jar scum silica frost EGR
Scum silica frost collection bucket, is arranged in anaerobic jar, installed in 100-200mm below anaerobic jar operation liquid level, for collecting scum silica frost;
Mozzle, is connected with scum silica frost collection bucket bottom, for the scum silica frost that collects is transported to pipeline delumper, the mozzle It is fixed on anaerobism tank wall;
Pipeline delumper, for crushing big particle diameter and fibrous scum silica frost;
Circulating pump, the charging aperture of the circulating pump are connected with the output end of pipeline delumper, and the discharging opening of the circulating pump passes through Scum silica frost return duct is connected to anaerobism pot bottom, is back to anaerobism pot bottom for the scum silica frost after will be broken.
According to a preferred embodiment of the invention, the scum silica frost collection bucket is cone bucket, and a diameter of anaerobic jar of collection port is straight The 1/20 ~ 1/10 of footpath, with 45-65 ° of horizontal direction angle at cone bucket closing in.
According to a preferred embodiment of the invention, the mozzle includes the oblique water conservancy diversion being connected with scum silica frost collection bucket bottom Pipe, the vertical mozzle being connected with the oblique mozzle, vertical mozzle are fixed on anaerobism tank wall by conduit saddle.
According to a preferred embodiment of the invention, the oblique mozzle is not less than 15 ° with horizontal direction angle.
According to a preferred embodiment of the invention, the broken particle diameter of the pipeline delumper is in below 5mm.
According to a preferred embodiment of the invention, the circulating pump adopts Pulp pump.
While scum silica frost can be collected by the present invention, big particle diameter and fibrous scum silica frost are crushed by pipeline delumper, then Anaerobism pot bottom is pumped into by circulating pump, while making scum silica frost damage layer, the organic matter in scum silica frost can be made to be degraded, scum silica frost without Outer row is needed, excessively outer row causes organic matter to lose problem, anaerobic jar operation stability in a large number so as to avoid scum silica frost crust and scum silica frost And gas deliverability is all obtained larger raising, additionally, by material in the achievable anaerobic jar of circulation pump reflux from the top to the bottom Arrive the longitudinal direction stirring at top again, while can adjust by pump flow, control scum silica frost internal circulating load.
Description of the drawings
Fig. 1 is the anaerobic jar scum silica frost EGR cross-sectional view of the present invention.
Fig. 2 is the anaerobic jar scum silica frost EGR skiagraph of the present invention.
Wherein include:Anaerobic jar 1, scum silica frost collection bucket 2, oblique mozzle 3, conduit saddle 4, vertical mozzle 5, pipeline delumper 6th, circulating pump 7, scum silica frost return duct 8.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.According to following explanation and claims, this The advantages and features of invention will become apparent from.It should be noted that, accompanying drawing using very simplify in the form of and using non-accurately Ratio, only in order to purpose that is convenient, lucidly aiding in illustrating the embodiment of the present invention.
As illustrated, a kind of anaerobic jar scum silica frost EGR, comprising anaerobic jar 1, scum silica frost collection bucket 2, oblique mozzle 3, Vertical mozzle 5, pipeline delumper 6, circulating pump 7, scum silica frost return duct 8 and conduit saddle 4 etc..
Wherein scum silica frost collection bucket 2 is cone bucket, a diameter of 1 diameter of anaerobic jar of the collection port of scum silica frost collection bucket 2 1/20 ~ 1/10, using stainless steel, 100-200mm below the operation liquid level of 2 distance from top anaerobic jar of scum silica frost collection bucket 1, cone bucket With 45-65 ° of horizontal direction angle at closing in, the scum silica frost collection bucket 2 is in anaerobic jar 1 at anaerobic jar tank skin.
2 bottom of scum silica frost collection bucket connects oblique mozzle 3, and which is not less than 15 ° with horizontal direction angle, oblique mozzle 3 It is connected with vertical mozzle 5, the upper end of oblique mozzle 3 is held within the bottom of the scum silica frost collection bucket 2 in anaerobic jar 1, under End is then connected with the vertical mozzle 5 being arranged on outside anaerobic jar 1, and vertical mozzle 5 is fixed on anaerobism tank wall by conduit saddle 4. Outer wall of the oblique mozzle 3 through anaerobic jar, arranges sealing structure in the oblique mozzle with anaerobic jar junction, with Preventing water leakage.
The lower end connecting pipe disintegrating machine 6 of vertical mozzle 5, the pipeline delumper 6 is used for crushing big particle diameter and fiber The scum silica frost of shape, broken below the particle diameter 5mm of the pipeline delumper 6.
The discharge nozzle connection circulating pump 7 of pipeline delumper 6, circulating pump 7 adopt Pulp pump, the discharging of circulating pump 7 to pass through scum silica frost Return duct 8 is back to 1 bottom of anaerobic jar.
The present invention operation principle be:When anaerobic jar works, collected by scum silica frost collection bucket 2 and swim in anaerobic jar top Scum silica frost, the scum silica frost that scum silica frost collection bucket 2 is collected is transported to by pipeline delumper 6 by oblique mozzle and vertical mozzle, lead to Big particle diameter and fibrous scum silica frost are broken into piping disintegrating machine the disintegrating slag of below particle diameter 5mm, then will be described by circulating pump Disintegrating slag pumps into anaerobic jar bottom, and the disintegrating slag for pumping into anaerobism pot bottom floats in the presence of buoyancy, and during floating Progressively it is degraded.
Preferably, 1 side wall of anaerobic jar arranges visor, is patrolled and examined by anaerobism pot sidewall visor daily and observes its internal scum layer Whether there is crust tendency, such as find that crust occurs in the water surface or liquid level is floated not substantially under stirring, then should increase internal circulating load, Crust is avoided to occur.
As can be seen here, the present invention while scum silica frost damage layer is made, the organic matter in scum silica frost can be made to be degraded, scum silica frost without Outer row is needed, excessively outer row causes organic matter to lose problem, anaerobic jar operation stability in a large number so as to avoid scum silica frost crust and scum silica frost And gas deliverability is all obtained larger raising, additionally, by material in the achievable anaerobic jar of circulation pump reflux from the top to the bottom Arrive the longitudinal direction stirring at top again, while can adjust by pump flow, control scum silica frost internal circulating load.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, this Any change that the those of ordinary skill in bright field is done according to the disclosure above content, modification, belong to the protection of claims Scope.

Claims (6)

1. a kind of anaerobic jar scum silica frost EGR, it is characterised in that the anaerobic jar scum silica frost EGR includes
Scum silica frost collection bucket, is arranged in anaerobic jar, installed in 100-200mm below anaerobic jar operation liquid level, for collecting scum silica frost;
Mozzle, is connected with scum silica frost collection bucket bottom, for the scum silica frost that collects is transported to pipeline delumper, the mozzle It is fixed on anaerobism tank wall;
Pipeline delumper, for crushing big particle diameter and fibrous scum silica frost;
Circulating pump, the charging aperture of the circulating pump are connected with the output end of pipeline delumper, and the discharging opening of the circulating pump passes through Scum silica frost return duct is connected to anaerobism pot bottom, is back to anaerobism pot bottom for the scum silica frost after will be broken.
2. a kind of anaerobic jar scum silica frost EGR according to claim 1, it is characterised in that the scum silica frost collection bucket is circle The taper bucket, the 1/20 ~ 1/10 of a diameter of anaerobic jar diameter of collection port, with 45-65 ° of horizontal direction angle at cone bucket closing in.
3. a kind of anaerobic jar scum silica frost EGR according to claim 1, it is characterised in that the mozzle includes and floats The oblique mozzle of slag collection bucket bottom connection, the vertical mozzle being connected with the oblique mozzle, vertical mozzle are passed through Conduit saddle is fixed on anaerobism tank wall.
4. a kind of anaerobic jar scum silica frost EGR according to claim 1, it is characterised in that the oblique mozzle and water Flat angular separation is not less than 15 °.
5. a kind of anaerobic jar scum silica frost EGR according to claim 1, it is characterised in that the pipeline delumper broken Particle footpath is in below 5mm.
6. a kind of anaerobic jar scum silica frost EGR according to claim 1, it is characterised in that the circulating pump adopts slurry Pump.
CN201611083498.8A 2016-11-30 2016-11-30 A kind of anaerobic jar scum silica frost EGR Pending CN106497759A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109401933A (en) * 2018-12-21 2019-03-01 河南恒天久大实业有限公司 Ruminant-type stalk anaerobic fermentation system and fermentation process
CN112812939A (en) * 2021-01-09 2021-05-18 西平金汇海蓝农业科技有限公司 Utilize research and development device of internet's marsh gas technique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB773124A (en) * 1955-09-15 1957-04-24 Dorr Oliver Inc Combined anaerobic treatment and clarification unit
CN201276559Y (en) * 2008-05-20 2009-07-22 安阳利浦筒仓工程有限公司 Stereo internal circulation stirring organic floating slag crushing device of anaerobic reaction tank
CN102242058A (en) * 2011-04-25 2011-11-16 北京愿景宏能源环保科技发展有限公司 Anaerobic fermentation system
CN202865228U (en) * 2012-10-31 2013-04-10 桑德环境资源股份有限公司 Crust breaking device of kitchen waste anaerobic digestion tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB773124A (en) * 1955-09-15 1957-04-24 Dorr Oliver Inc Combined anaerobic treatment and clarification unit
CN201276559Y (en) * 2008-05-20 2009-07-22 安阳利浦筒仓工程有限公司 Stereo internal circulation stirring organic floating slag crushing device of anaerobic reaction tank
CN102242058A (en) * 2011-04-25 2011-11-16 北京愿景宏能源环保科技发展有限公司 Anaerobic fermentation system
CN202865228U (en) * 2012-10-31 2013-04-10 桑德环境资源股份有限公司 Crust breaking device of kitchen waste anaerobic digestion tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109401933A (en) * 2018-12-21 2019-03-01 河南恒天久大实业有限公司 Ruminant-type stalk anaerobic fermentation system and fermentation process
CN112812939A (en) * 2021-01-09 2021-05-18 西平金汇海蓝农业科技有限公司 Utilize research and development device of internet's marsh gas technique

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