CN207276633U - A kind of integrated form anaerobic fermentation system - Google Patents

A kind of integrated form anaerobic fermentation system Download PDF

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Publication number
CN207276633U
CN207276633U CN201721148274.0U CN201721148274U CN207276633U CN 207276633 U CN207276633 U CN 207276633U CN 201721148274 U CN201721148274 U CN 201721148274U CN 207276633 U CN207276633 U CN 207276633U
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anaerobic fermentation
dry
fermentation tank
liquid
type anaerobic
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CN201721148274.0U
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傅国志
马宗虎
潘宁
章远明
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BEIJING HUADIAN ZHONGGUANG NEW ENERGY TECHNOLOGY Co Ltd
China Huadian Engineering Group Co Ltd
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BEIJING HUADIAN ZHONGGUANG NEW ENERGY TECHNOLOGY Co Ltd
China Huadian Engineering Group Co Ltd
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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 provides a kind of integrated form anaerobic fermentation system, the system is connected setting with dry-type anaerobic fermentation tank with directly to solid material progress dry-type anaerobic fermentation by exporting the solid material of sorting equipment, without the process that crushes and degrade, so as to reduce whole technological process, system energy consumption and operating cost are advantageously reduced；And by the way that the liquid outlet of wet type anaerobic fermentation tank directly is connected setting with the spray liquid entrance of dry-type anaerobic fermentation tank, the inlet of wet type anaerobic fermentation tank is connected into setting with the liquid outlet of the leachate collecting device of dry-type anaerobic fermentation tank, not only increase dry fermentation efficiency, ensure its continuous uninterrupted fermentation, thus biogas output is also increased, it also can ensure that the mass-and heat-transfer between dry fermentation system and wet type fermentation system, enhance the dry-wet-coupled degree of whole system.Produced biogas can directly be collected and used without it by setting caisson by the utility model, improve the yield and yield of biogas.

Description

A kind of integrated form anaerobic fermentation system
Technical field
The utility model belongs to Waste Disposal Technology field, and in particular to a kind of dry and wet coupling for handling a variety of discarded objects Intersection accepted way of doing sth anaerobic fermentation system.
Background technology
At present, domestic large-sized biogas engineering generally uses feces of livestock and poultry for raw material, produces biogas by wet type anaerobic fermentation, But this method is primarily present two problems：First, raw material is single, the diversity and seasonality of raw material are not suitable with, it is particularly high and cold Regional winter raw material collects difficulty, influences biogas output, even if there is the mixed fermentation raw material using feces of livestock and poultry and stalk, also deposits In stalk scum silica frost phenomenon, the normal gas producing of methane-generating pit is seriously affected；Second, biogas slurry and biogas residue viscosity is big, separation of solid and liquid is difficult, separation Of high cost, separation is not thorough, and the dry matter content after separation of solid and liquid in biogas slurry is high, to subsequent treatment or using difficulty is caused, such as Fruit is directly applied to the fertilizer that farmland has no doubt been, but agricultural production is carried out by season, and biogas slurry will produce daily, therefore natural pond Liquid easily causes secondary pollution, and the above problem has become the technical bottleneck for restricting the popularization of large-sized biogas engineering and promoting.
China has abundant agricultural solid residue resource, and traditional solid waste processing mode is predominantly burned, After crops are harvested, solid waste can be used for agricultural fertilizer through burning obtained inorganic substances plant ash, form energy The circulation of recycling.But this measure be easy to cause the pollution of atmosphere, the health of harmful to human, destroys the structure of soil, very Fire can extremely have been triggered.And these resources can be turned waste into wealth by biogas engineering, while environmental hazard is reduced, production Regenerative resource biogas, fermentation biogas residue can also be used as Agricultural organic fertilizer, be recycled so as to fulfill non-secondary pollution, resources circulation Ecological agriculture industry pattern, so the dry-type anaerobic fermentation method using agricultural crop straw as fermentation raw material receives more in recent years Carry out more concerns.However, dry-type anaerobic fermentation method, which starts limitation slow, that gas producing efficiency is low, limits its large-scale promotion Using.
In view of the above-mentioned problems, the prior art proposes the Technology design of the wet method combined fermentation methane production of dry method, such as China Patent document CN101973682A discloses a kind of dry-wet-coupled anaerobic ferment process, which is that wet type diphasic anaerobic ferments The biogas residue and biogas liquid of method production is sent into the stalk of dry-type anaerobic fermentation method with being completed in lignocellulose degrading bacteria system mixture Moisturizing, mend nitrogen, inoculation operation, while will be right in the biogas feeding dry-type anaerobic fermentation tank of wet type diphasic anaerobic fermentation process production Biogas residue and biogas liquid plays the role of separation of solid and liquid, then sends the diafiltration biogas slurry part that dry-type anaerobic fermentation method produces back to dry type again In anaerobic fermentation tank, the stored pond of another part is sent into the feces of livestock and poultry of wet type diphasic anaerobic fermentation process and the dispensing of water. Above-mentioned technology is by the way that stalk is sent into without entering wet fermentation system in dry fermentation tank, thus to the requirement of stalk degree of grinding It is not high, Grin-ding energ7 and production cost are saved, and also eliminate adverse effect of the stalk wet fermentation crust to system operation. But above-mentioned technology still needs to stalk being crushed to certain particle diameter and adds wood fibre thereto before dry fermentation is carried out to stalk For plain degradation bacterium series so that straw degradative, this undoubtedly adds whole technological process, extends the process cycle of technique.Furthermore due to The technology is to send the diafiltration biogas slurry that dry-type anaerobic fermentation method produces back in dry-type anaerobic fermentation tank spray to mend nitrogen, can so be led Cause dry fermentation efficiency low, can not continuously ferment, so as to cause the dry-wet-coupled degree of whole technique not satisfactory.In addition it is above-mentioned The biogas that technology also produces wet type anaerobic fermentation method is sent into dry-type anaerobic fermentation tank, and a part of natural pond will certainly be lost in this Gas, causes the methane quantity finally collected less.
Utility model content
The purpose of this utility model is that solve fermentation efficiency present in existing dry-wet-coupled anaerobic fermentation system it is low, It is difficult to continuously ferment, the defects of dry and wet fermentation degree of coupling is poor, biogas output is low and technological process Complicated Periodic is long, and then offer A kind of fermentation efficiency is high, can continuously ferment, dry and wet fermentation degree of coupling is good, biogas output is high and the technological process simple cycle is short Integrated form anaerobic fermentation system.
To reach above-mentioned purpose, technical solution is as follows used by the utility model：
A kind of integrated form anaerobic fermentation system, including,
Sorting equipment, it is provided with solid material outlet and liquid material outlet；
The dry-type anaerobic fermentation tank set with the solid material outlet connection, its underpart are provided with leachate collecting device, institute The top for stating dry-type anaerobic fermentation tank is provided with exhaust outlet and spray liquid entrance；
The wet type anaerobic fermentation tank of connection setting is exported with the liquid material, its underpart is provided with liquid outlet, the liquid outlet Directly setting is connected with the spray liquid entrance；The top of the wet type anaerobic fermentation tank is provided with gas outlet and inlet, institute State inlet and connect setting with the liquid outlet of the leachate collecting device；
Caisson, connects with the exhaust outlet and the gas outlet respectively.
Preferably, heating unit and agitating device are provided with the wet type anaerobic fermentation tank.
Preferably, the tank body of the dry-type anaerobic fermentation tank is provided outside insulating layer.
Preferably, the leachate collecting device includes the orifice plate for being arranged at the dry-type anaerobic fermentation device lower part, institute State and form liquid collecting room between the bottom plate of orifice plate and the dry-type anaerobic fermentation device.
Preferably, the percent opening of the orifice plate is 5~30%, and the minimum dimension in each hole on the orifice plate is no more than 1cm。
Preferably, wet type anaerobic fermentation tank the being integrated fermentation tank, the dry-type anaerobic fermentation tank are sent out for garage type Fermentation tank.
Further, further include and be arranged at putting except being fixedly mounted between the liquid outlet and the spray liquid entrance.
Further, filtration apparatus is further included, it is arranged on the liquid outlet of the leachate collecting device and the feed liquor Between mouthful.
Further, equipment for separating liquid from solid is further included, its import connects the liquid material outlet, and the equipment for separating liquid from solid is set The row of being equipped with Gu Kou and leakage fluid dram, the row Gu Kou connections dry-type anaerobic fermentation tank, the leakage fluid dram, which connects the wet type, to be detested Aerobe fermentation tank.
Further, control unit is further included, described control unit includes controller and controlled by the controller the One solenoid valve and second solenoid valve, first solenoid valve be used to opening or end the liquid outlet and the spray liquid entrance it Between connection, the second solenoid valve be used to opening or end the inlet and the leachate collecting device liquid outlet it Between connection.
Compared with prior art, the above-mentioned technical proposal of the utility model has the following advantages that：
1st, integrated form anaerobic fermentation system provided by the utility model, is detested by exporting the solid material of sorting equipment with dry type The connection of aerobe fermentation tank is set, and dry-type anaerobic fermentation is carried out with the solid material of (being not less than 12%) directly high to solid content, without powder Broken and degraded process, so as to reduce whole technological process, advantageously reduces system energy consumption and operating cost.And this practicality is new System described in type is by the way that the liquid outlet of wet type anaerobic fermentation tank is directly connected with the spray liquid entrance of dry-type anaerobic fermentation tank Set, so that the Partial fermentation liquid in wet type anaerobic fermentation system is sprayed in the solid-phase material of dry-type anaerobic fermentation system；With This at the same time also connects the inlet of wet type anaerobic fermentation tank with the liquid outlet of the leachate collecting device of dry-type anaerobic fermentation tank Set, so that the liquid phase fermentation materials in dry-type anaerobic fermentation system enter in wet type anaerobic fermentation system, on the one hand improve Dry fermentation efficiency, ensures its continuous uninterrupted fermentation, thus also increases biogas output, on the other hand can ensure that dry fermentation Mass-and heat-transfer between system and wet type fermentation system, enhances the dry-wet-coupled degree of whole system.In addition, this practicality Produced biogas can directly be collected and used without it, so as to also improve by setting caisson by the new system The yield and yield of biogas.
2nd, integrated form anaerobic fermentation system provided by the utility model, the advantages of traditional dry fermentation and wet type are fermented It is integrated, thus there is wider adaptability to raw material, and without carrying out raw material complicated pretreatment, be conducive to save behaviour Make process and equipment investment.
3rd, integrated form anaerobic fermentation system provided by the utility model, since whole system is by whole audience automatic control system Control, thus the control efficiency of system is improved, human input is greatly reduced, realizes the automated job of whole system.
Brief description of the drawings
, below will be to specific embodiment party in order to illustrate more clearly of the technical solution in the utility model embodiment Attached drawing is briefly described needed in formula description, it should be apparent that, drawings in the following description are the utility model Some embodiments, for those of ordinary skill in the art, without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure chart for the integrated form anaerobic fermentation system that embodiment 1 provides；
Wherein, the reference numerals are as follows：
1- dry-type anaerobic fermentation tanks；2- wet type anaerobic fermentation tanks；3- heating units；4- agitating devices；5- filtration apparatuses.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected scope.
, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in the description of the utility model Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not intended that limitation to the utility model.Term " connected ", " connection " should be interpreted broadly, for example, it may be solid Connect or be detachably connected calmly, or be integrally connected；Can mechanically connect or be electrically connected；Can be straight Connect connected, can also be indirectly connected by intermediary, can be the connection inside two elements.Term " first ", " second " Description purpose is only used for, and it is not intended that instruction or hint relative importance.For the ordinary skill in the art, Concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not forming conflict can be combined with each other.
Embodiment 1
Integrated form anaerobic fermentation system provided in this embodiment, includes as shown in Figure 1：
Sorting equipment, it is provided with solid material outlet and liquid material outlet；
Dry-type anaerobic fermentation tank 1, is set, the lower part of the dry-type anaerobic fermentation tank 1 is set with the solid material outlet connection There is a leachate collecting device, the leachate collecting device in the present embodiment includes being arranged under the dry-type anaerobic fermentation device 1 Liquid collecting room, the percent opening of the orifice plate are formed between the bottom plate of the orifice plate in portion, the orifice plate and the dry-type anaerobic fermentation device 1 For 5~30%, the minimum dimension in each hole no more than 1cm to be advisable；The top of the dry-type anaerobic fermentation tank 1 is additionally provided with row Gas port and spray liquid entrance；Insulating layer is coated with to play the role of insulation outside the tank body of the dry-type anaerobic fermentation tank 1；
Wet type anaerobic fermentation tank 2, exports connection with the liquid material and sets, the lower part of the wet type anaerobic fermentation tank 2 is set There is a liquid outlet, the liquid outlet is by putting (not shown) and connecting setting with the spray liquid entrance except being fixedly mounted with；The wet type The top of anaerobic fermentation tank 2 is provided with gas outlet and inlet, the liquid outlet of the inlet and the leachate collecting device Connection is set；Heating unit 3 and agitating device 4 are provided with the wet type anaerobic fermentation tank 2, heating unit 3 can be heating Coil pipe, heat is supplied for whole system；
Filtration apparatus 5, it is arranged between the liquid outlet of the leachate collecting device and the inlet, in this implementation Filtration apparatus 5 can be filtering ponds in example, can also be the sedimentation basin with solid-liquid separation function in other embodiments certainly Deng；
Equipment for separating liquid from solid, its import connect the liquid material outlet, and the equipment for separating liquid from solid is provided with Pai Gukou and row Liquid mouth, the row Gu Kou connections dry-type anaerobic fermentation tank, the leakage fluid dram connect the wet type anaerobic fermentation tank；
Caisson, connects with the exhaust outlet and the gas outlet respectively；
Control unit, it includes controller and the first solenoid valve controlled by the controller and second solenoid valve, described First solenoid valve is used for the connection opened or end the liquid outlet between the spray liquid entrance, and the second solenoid valve is used In opening or end the connection between the liquid outlet of the inlet and the leachate collecting device, in addition the system Solenoid valve is both provided with all pipelines to realize the automated job of whole system.
In the present embodiment, the wet type anaerobic fermentation tank is integrated fermentation tank of the prior art, and the dry type is detested Aerobe fermentation tank is specially garage type fermentation tank, and certain other existing wet type anaerobic fermentation tanks and dry-type anaerobic fermentation tank can be For the utility model, fall into the scope of protection of the utility model.
The operation principle of integrated form anaerobic fermentation system in the present embodiment is as follows：
S1, using organic waste as raw material, be sent in sorting equipment and be divided into according to the difference of raw material solid content containing solid Solid material and solid content of the rate not less than 12% are less than 12% liquid material；
S2, solid material are directly entered in dry-type anaerobic fermentation tank and ferment at 38~42 DEG C, form gas, the fermentation of solid, liquid three-phase Material；Liquid of the liquid material after separation of solid and liquid is then pumped into wet type anaerobic fermentation tank to ferment at 38~42 DEG C, obtains fermentation gas And zymotic fluid, and the solid in liquid material after separation of solid and liquid is also directly entered in dry-type anaerobic fermentation tank and ferments；
S3, send out the Partial fermentation liquid in wet type anaerobic fermentation tank through except the solid phase that dry-type anaerobic fermentation tank is sprayed to after solid In ferment material, and ensure to be sprayed to the volume of the zymotic fluid in dry-type anaerobic fermentation tank no more than solid phase fermentation materials volume 50%, and the flow of zymotic fluid is 50~80mL/min during spray；By the liquid phase fermentation materials in dry-type anaerobic fermentation tank except solid All it is pumped into wet type anaerobic fermentation tank with the flow of 50~110mL/min afterwards；
S4, the fermentation gas that will be produced in the gas phase fermentation materials produced in dry-type anaerobic fermentation tank and wet type anaerobic fermentation tank Sent outside after merging as biogas, after measured, biogas yield 1.7m3/m3(in terms of volume yield rate), the methane content in biogas For 62%.
Comparative example 1
This comparative example is using quality same as Example 2 and the raw material of composition, according to Chinese patent literature The method production biogas of CN101973682A, after measured, biogas yield 1.45m3/m3(in terms of volume yield rate), in biogas Methane content is 50.2%.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among the protection domain that variation is created still in the utility model.

Claims (10)

  1. A kind of 1. integrated form anaerobic fermentation system, it is characterised in that including,
    Sorting equipment, it is provided with solid material outlet and liquid material outlet；
    The dry-type anaerobic fermentation tank set with the solid material outlet connection, its underpart is provided with leachate collecting device, described dry The top of formula anaerobic fermentation tank is provided with exhaust outlet and spray liquid entrance；
    The wet type anaerobic fermentation tank of connection setting is exported with the liquid material, its underpart is provided with liquid outlet, and the liquid outlet is direct Setting is connected with the spray liquid entrance；The top of the wet type anaerobic fermentation tank is provided with gas outlet and inlet, it is described into Liquid mouth connects setting with the liquid outlet of the leachate collecting device；
    Caisson, connects with the exhaust outlet and the gas outlet respectively.
  2. 2. integrated form anaerobic fermentation system according to claim 1, it is characterised in that set in the wet type anaerobic fermentation tank It is equipped with heating unit and agitating device.
  3. 3. integrated form anaerobic fermentation system according to claim 1, it is characterised in that the tank of the dry-type anaerobic fermentation tank It is provided with insulating layer in vitro.
  4. 4. integrated form anaerobic fermentation system according to claim 1, it is characterised in that the leachate collecting device includes The orifice plate of the dry-type anaerobic fermentation device lower part is arranged at, between the orifice plate and the bottom plate of the dry-type anaerobic fermentation device Form liquid collecting room.
  5. 5. integrated form anaerobic fermentation system according to claim 4, it is characterised in that the percent opening of the orifice plate for 5~ 30%, the minimum dimension in each hole on the orifice plate is no more than 1cm.
  6. 6. integrated form anaerobic fermentation system according to claim 1, it is characterised in that the wet type anaerobic fermentation tank is one Body fermentation tank, the dry-type anaerobic fermentation tank are garage type fermentation tank.
  7. 7. integrated form anaerobic fermentation system according to claim 1, it is characterised in that further include and be arranged at the liquid outlet Putting except being fixedly mounted between the spray liquid entrance.
  8. 8. according to claim 1-7 any one of them integrated form anaerobic fermentation systems, it is characterised in that further include filtering dress Put, it is arranged between the liquid outlet of the leachate collecting device and the inlet.
  9. 9. according to claim 1-7 any one of them integrated form anaerobic fermentation systems, it is characterised in that further include separation of solid and liquid Device, its import connect the liquid material outlet, and the equipment for separating liquid from solid is provided with row Gu Kou and leakage fluid dram, and the row Gu Kou connects The dry-type anaerobic fermentation tank is connect, the leakage fluid dram connects the wet type anaerobic fermentation tank.
  10. 10. according to claim 1-7 any one of them integrated form anaerobic fermentation systems, it is characterised in that it is single to further include control Member, described control unit include controller and the first solenoid valve and second solenoid valve that are controlled by the controller, and described first Solenoid valve is used for the connection opened or end the liquid outlet between the spray liquid entrance, and the second solenoid valve is used to open Open or end the connection between the liquid outlet of the inlet and the leachate collecting device.
CN201721148274.0U 2017-09-08 2017-09-08 A kind of integrated form anaerobic fermentation system Active CN207276633U (en)

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CN201721148274.0U CN207276633U (en) 2017-09-08 2017-09-08 A kind of integrated form anaerobic fermentation system

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Application Number Priority Date Filing Date Title
CN201721148274.0U CN207276633U (en) 2017-09-08 2017-09-08 A kind of integrated form anaerobic fermentation system

Publications (1)

Publication Number Publication Date
CN207276633U true CN207276633U (en) 2018-04-27

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