CN207581801U - A kind of mixed material fermentation and biogas production device with low temperature sterilization - Google Patents
A kind of mixed material fermentation and biogas production device with low temperature sterilization Download PDFInfo
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- CN207581801U CN207581801U CN201721582526.0U CN201721582526U CN207581801U CN 207581801 U CN207581801 U CN 207581801U CN 201721582526 U CN201721582526 U CN 201721582526U CN 207581801 U CN207581801 U CN 207581801U
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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
Abstract
A kind of mixed material fermentation and biogas production device with low temperature sterilization, including mixing channel, the port of export of mixing channel is sequentially connected pulverizer, settling tank and marsh-gas fermentation tank, pretreatment unit is set between the marsh-gas fermentation tank and settling tank, the pretreatment unit includes material outlet pipeline is connect successively the preheating tower and flash column with settling tank, the import of the outlet connection marsh-gas fermentation tank of flash column；Heater and maintainer are set gradually between the preheating tower and flash column, the gaseous phase outlet of flash column is connected with the steam inlet of preheating tower.The present apparatus does not need to add any chemicals；Heated material institute calorific requirement is recycled by flashing, and low energy consumption；It is controlled into fermentation tank temperature of charge by flash conditions, it is easy to operation；Obtained biogas residue can be used as fertilizer or fuel to use, without waste sludge discharge；A part of biogas slurry recycles, and another part biogas slurry enters advanced treating；Small investment, operating cost is low, and stable, adaptable.
Description
Technical field
The utility model belongs to organic waste disposition and utilization of resources equipment technical field, more particularly to a kind of with low
The mixed material fermentation and biogas production device of temperature sterilizing.
Background technology
The fecal sewage of livestock and poultry farm, when stacking in domestic garbage resource processing procedure due to fermentation, leaching by precipitation
The washings generated when percolate and wet method classification are generated, municipal wastewater sludge if unprocessed direct emission, can cause
Serious environmental pollution.On the other hand, can be used for fermenting generating natural pond containing a large amount of organic matter in these sewage, sludge
Gas.
Feces of livestock and poultry contains the more easy organic matter utilized by microorganism, has fermentation period short, starts morning time, production
The advantages that gas velocity rate is fast also provides good cushion performance for fermentation system.But low C/N generates fermentation unfavorable shadow
It rings.Garbage leachate and washings have the potentiality of huge producing methane through anaerobic fermentation, but contain higher concentration due to wherein existing
NH3- N and contents of many kinds of heavy metal ion, and water quality seasonal fluctuation is larger, to microbial activity, there are certain inhibiting effect.
About municipal sludge, wherein organic concentration of carbon is relatively low, in independent anaerobic fermentation, nitrogen substance dissolution is very fast, may lead to ammonia nitrogen
Excessive concentration is suppressed fermentation process, causes production biogas inefficient.
Stalk is a kind of extremely important rich carbon biomass material, contains more lignin and cellulose components so that C/N
It is higher, it is not easy to be decomposed by the microorganisms, start slowly so existing when carrying out anaerobic fermentation, fermentation period is long, and gas production rate is low etc.
Shortcoming, but it has generation biogas potentiality well.
Research finds above-mentioned raw materials mixed fermentation, can be with：1. improving the architectural characteristic of raw material, amplified medium transmits, and improves
Microorganism is to the utilization rate of raw material；2. promoting the nutrient balance of fermentation substrate, enhance the buffer capacity of fermentation system and organic negative
Lotus；3. reducing toxicity inhibition, enhancing system is stablized, and improves fermentation efficiency.
Containing a large amount of microbial bacterias in above-mentioned raw materials, fermentation system is directly entered, some bacterium can inhibit biogas to generate, and influence
Biogas output；And microbial bacteria growth course needs to consume nutritional ingredient, equally influences biogas output.If material is carried out
Heating（No more than 80 DEG C）Sterilization treatment accomplishes purebred culture, will further improve biogas output.The thalline of inactivation remains in object
In material and the raw material of fermentation and biogas production.
But additional thermal energy to be consumed to the heating of material, it is necessary to take corresponding energy conservation measure.
In marsh gas fermentation processes, the N in raw material can be converted into ammonia, have inhibiting effect to production biogas, should exclude in time.Together
When, if the ammonia to discharge is recycled not in time, it will cause secondary pollutions.
Utility model content
The purpose of this utility model is to provide a kind of utilization livestock and poultry farm fecal sewage, garbage leachate, rubbish and washs
The device of water, municipal sludge and stalk mixed fermentation production biogas, in addition to stalk, rest materials can be livestock and poultry farm excrement
It is one or more in sewage, garbage leachate, rubbish washings, municipal sludge.
To achieve the above object, the utility model uses following technical scheme：
A kind of mixed material fermentation and biogas production device with low temperature sterilization, including mixing channel, the port of export of mixing channel
Pulverizer, settling tank and marsh-gas fermentation tank are sequentially connected, pretreatment unit, institute are set between the marsh-gas fermentation tank and settling tank
It states pretreatment unit and includes material outlet pipeline is connect successively the preheating tower and flash column with settling tank, the outlet of flash column connects
Connect the import of marsh-gas fermentation tank；Heater and maintainer, the gas phase of flash column are set gradually between the preheating tower and flash column
Outlet is connected with the steam inlet of preheating tower.
The gas vent connection ammonia recovery unit of the preheating tower, the ammonia recovery unit includes absorption tower, absorbent follows
Ring pumps and wind turbine, and the air inlet on the absorption tower is exported by the top gas phase of wind turbine and preheating tower to be connected, and the absorbent follows
The import and export of ring pump is connected respectively by the lower part outlet of the cyclic absorption agent on pipeline and absorption tower, upper inlet, absorption tower
Top sets the exhaust outlet with atmosphere, and bottom setting is exported containing ammonia solution.
The methane outlet of the marsh-gas fermentation tank is sent to user, solid discharge pipeline connection solid-liquid separating machine；The solid-liquid
The slag-drip opening of seperator is directly outer to be arranged, and leakage fluid dram is divided into two branches, and a branch is back to mixing channel, Ling Yizhi by pipeline
It send to subsequent processing and carries out advanced treating in road.
Setting blender in the tank of the marsh-gas fermentation tank, outer wall setting heat-insulation unit.
Between the mixing channel and pulverizer, between settling tank and preheating tower, between preheating tower and heater, flash tank with
Delivery pump is respectively provided in connecting pipe between marsh-gas fermentation tank, between marsh-gas fermentation tank and solid-liquid separating machine.
The mixing channel is metal structure or concrete structure, and interior sets blender.
In the present apparatus, the operation principle of pretreatment unit is：High fermentation material in settling tank enters preheating tower, with coming
From the indirect steam in flash tank, the direct contact heat transfer in tower；Enter heater after temperature of charge raising, utilize external heat source
Indirectly heat reaches the temperature of sterilizing needs, into maintainer, stops certain time, kills the miscellaneous bacteria in material；The bacterium of inactivation
Body remains in material and the raw material of fermentation and biogas production.Raw material after sterilizing enters flash tank, and vacuum flashing flashes
The indirect steam that arrives returns to preheating tower, and preheating material is to recycle thermal energy；It flashes obtained liquid and enters fermentation system.In preheating tower
The ammonia generated in discharge process.Preheating tower material outlet is connect by being equipped with the pipeline of pump with heater inlet；Heater goes out
Mouth is connect by pipeline with maintainer import, and heater is equipped with external heat source medium import and export；Maintainer outlet by pipeline with
Flash tank import connects, and installs material-handling pump on pipeline, and flash tank lower liquid outlet is by being equipped with the pipeline and hair of pump
Fermentation tank material inlet connects, and the outlet of flash tank indirect steam is connect by pipeline with preheating tower steam import.
Livestock and poultry farm fecal sewage, garbage leachate, rubbish washings, municipal sludge and stalk are mixed using the present apparatus
Close fermentation, it is ensured that heat sterilization processing is carried out to material, accomplishes purebred culture, further improves biogas output；And inactivation
Thalline remains in material and the raw material of fermentation and biogas production.Meanwhile it is one that material is preheated to and flashed the technique being combined
The effective energy conservation measure of kind, avoids consuming additional thermal energy.While being heated to material, also it is carried out innoxious
Processing.
Compared with prior art, the utility model has the characteristics that：
（1）It does not need to add any chemicals；
（2）Heated material institute calorific requirement is recycled by flashing, and low energy consumption；
（3）It is controlled into fermentation tank temperature of charge by flash conditions, it is easy to operation；
（4）Obtained biogas residue can be used as fertilizer or fuel to use, without waste sludge discharge；
（5）Mixed material passes through sterilization treatment, and biogas yield improves more than 20%；
（6）Small investment, operating cost is low, and stable；
（7）The usage amount of various materials can be adjusted arbitrarily, adaptable.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1- mixing channels, 2- pulverizers, 3- settling tanks, 4- preheating towers, 5- heaters, 6- maintainers, 7- flash tanks,
8- marsh-gas fermentation tanks, 9- solid-liquid separating machines, 10- absorption towers, 11- wind turbines.
Specific embodiment
A kind of mixed material fermentation and biogas production device with low temperature sterilization as shown in Figure 1, it is described including mixing channel 1
Mixing channel 1 is metal structure or concrete structure, and interior sets blender.The port of export of mixing channel 1 is sequentially connected pulverizer 2, sinks
Pond 3 and marsh-gas fermentation tank 8 are dropped, blender, outer wall setting heat-insulation unit are set in the tank of the marsh-gas fermentation tank 8.
Pretreatment unit is set between the marsh-gas fermentation tank 8 and settling tank 3, and the pretreatment unit includes and settling tank
The 3 material outlet preheating tower 4 that pipeline connects successively and flash column 7, the import of the outlet connection marsh-gas fermentation tank 8 of flash column；
Heater 5 and maintainer 6, gaseous phase outlet and the preheating tower 4 of flash column are set gradually between the preheating tower 4 and flash column 7
Steam inlet connects.
The gas vent connection ammonia recovery unit of the preheating tower 4, the ammonia recovery unit include absorption tower 10, absorbent
Circulating pump 12 and wind turbine 11, the air inlet on the absorption tower 10 is exported by the top gas phase of wind turbine and preheating tower 4 to be connected, described
The import and export of absorbent circulating pump is connected respectively by pipeline and the lower part outlet of the cyclic absorption agent on absorption tower 10, upper inlet
It connects, the top setting on absorption tower 10 and the exhaust outlet of atmosphere, bottom setting are exported containing ammonia solution.
The methane outlet of the marsh-gas fermentation tank 8 is sent to user, solid discharge pipeline connection solid-liquid separating machine 9；It is described solid
The slag-drip opening of liquid separator 9 is directly outer to be arranged, and leakage fluid dram is divided into two branches, and a branch is back to mixing channel 1 by pipeline, separately
One branch send to subsequent processing and carries out advanced treating.
Between the mixing channel 1 and pulverizer 2, between settling tank 3 and preheating tower 4, between preheating tower 4 and heater 5, dodge
Delivery pump is respectively provided in connecting pipe between steaming pot 7 and marsh-gas fermentation tank 8, between marsh-gas fermentation tank 8 and solid-liquid separating machine 9.
The course of work of the present apparatus is：Livestock and poultry farm fecal sewage, garbage leachate, rubbish washings, municipal sludge
It is mixed in mixing channel 1 with stalk, is pumped by the pipeline for connecting discharge port and be delivered to pulverizer 2, material size is reduced to
Less than 10mm；Material after crushing exports pipeline between settling tank 3 by being connected to pulverizer 2, is transported to settling tank
3；Silt in material under the effect of gravity, is deposited on the bottom in pond, by being manually or mechanically purged；3 liquid of settling tank
Outlet is connect by pipeline with 4 material inlet of preheating tower, and material is delivered in tower with pump；Material and two from flash tank 7
Secondary steam contact, temperature are increased to 50 DEG C, and 4 material outlet of preheating tower is connect by pipeline with 5 material inlet of heater, will be preheated
Material pump is delivered to heater 5 afterwards；Heater 5 is provided with external heat source medium inlet and outlet channel, in a manner of indirectly heat
Temperature of charge is increased to 80 DEG C；5 material outlet of heater is connect by pipeline with 6 material inlet of maintainer, and material is from heating
Device 5 flows into maintainer 6, stops more than 30min wherein；The outlet of maintainer 6 is connect by pipeline with 7 material inlet of flash tank,
Material is delivered to flash tank 7 with pump；The operation temperature of flash tank 5 is controlled at 50 DEG C, and the indirect steam of generation is by being connected to
The pipeline return of 4 steam inlet of steam (vapor) outlet and preheating tower directly heats material；7 liquid outlet of flash tank passes through pipeline and biogas
8 import of fermentation tank connects, and material pump is delivered to fermentation tank 8；Material ferments in fermentation tank 8 generates biogas, passes through pipeline
Output；Liquid pump after fermentation is delivered to solid-liquid separating machine 9 by 8 liquid outlet connecting pipe of fermentation tank；Isolated natural pond
Slag is transported with solid-handling equipment, and obtained liquid is divided into two parts, and a part is by being connected to the pipeline of outlet to mixed
Slot 1 is closed, another part passes through pipeline to advanced treatment system；4 gas vent of preheating tower passes through pipeline and 11 import of wind turbine
Connection；The outlet of wind turbine 11 is connect by pipeline with 10 lower gas import of absorption tower；Gas flows up in tower, with from upper and
Lower flowing water contacts, and the ammonia in gas is only absorbed by the water, and is discharged by overhead gas outlet conduit；The water of absorbing ammonia is from tower lower part
Outlet outflow by pipeline with tower upper inlet is delivered to, introduces and cycle is formed in tower；When absorbing to a certain extent, liquid
Body is discharged from bottom of towe.
Claims (6)
1. a kind of mixed material fermentation and biogas production device with low temperature sterilization, which is characterized in that including mixing channel, mixing channel
The port of export be sequentially connected pulverizer, settling tank and marsh-gas fermentation tank, pre- place is set between the marsh-gas fermentation tank and settling tank
Device is managed, the pretreatment unit includes material outlet pipeline is connect successively the preheating tower and flash column with settling tank, flash distillation
The import of the outlet connection marsh-gas fermentation tank of tower；Heater and maintainer are set gradually between the preheating tower and flash column, is dodged
The gaseous phase outlet for steaming tower is connected with the steam inlet of preheating tower.
2. the mixed material fermentation and biogas production device of low temperature sterilization is carried as described in claim 1, which is characterized in that described
The gas vent connection ammonia recovery unit of preheating tower, the ammonia recovery unit include absorption tower, absorbent circulating pump and wind turbine, institute
The air inlet for stating absorption tower exports connection, the import and export of the absorbent circulating pump by the top gas phase of wind turbine and preheating tower
Connected respectively by the lower part outlet of the cyclic absorption agent on pipeline and absorption tower, upper inlet, the top setting on absorption tower with it is big
The exhaust outlet of gas connection, bottom setting are exported containing ammonia solution.
3. the mixed material fermentation and biogas production device of low temperature sterilization is carried as claimed in claim 2, which is characterized in that described
The methane outlet of marsh-gas fermentation tank is sent to user, solid discharge pipeline connection solid-liquid separating machine；The deslagging of the solid-liquid separating machine
Mouth is directly outer to be arranged, and leakage fluid dram is divided into two branches, and a branch is back to mixing channel by pipeline, and another branch is sent to next work
Sequence carries out advanced treating.
4. the mixed material fermentation and biogas production device of low temperature sterilization is carried as claimed in claim 3, which is characterized in that described
Setting blender in the tank of marsh-gas fermentation tank, outer wall setting heat-insulation unit.
5. the mixed material fermentation and biogas production device of low temperature sterilization is carried as claimed in claim 4, which is characterized in that described
Between mixing channel and pulverizer, between settling tank and preheating tower, between preheating tower and heater, flash tank and marsh-gas fermentation tank it
Between, in the connecting pipe between marsh-gas fermentation tank and solid-liquid separating machine be respectively provided with delivery pump.
6. the mixed material fermentation and biogas production device with low temperature sterilization as described in claim 1-5 is any, feature exist
In, the mixing channel be metal structure or concrete structure, and interior set blender.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582526.0U CN207581801U (en) | 2017-11-23 | 2017-11-23 | A kind of mixed material fermentation and biogas production device with low temperature sterilization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582526.0U CN207581801U (en) | 2017-11-23 | 2017-11-23 | A kind of mixed material fermentation and biogas production device with low temperature sterilization |
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| CN207581801U true CN207581801U (en) | 2018-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748476A (en) * | 2019-02-28 | 2019-05-14 | 周嘉豪 | A kind of organic matter high-temperature process system |
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2017
- 2017-11-23 CN CN201721582526.0U patent/CN207581801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748476A (en) * | 2019-02-28 | 2019-05-14 | 周嘉豪 | A kind of organic matter high-temperature process system |
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