CN110156289A - A kind of chicken manure anaerobic pretreatment system and method - Google Patents
A kind of chicken manure anaerobic pretreatment system and method Download PDFInfo
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- CN110156289A CN110156289A CN201910562674.3A CN201910562674A CN110156289A CN 110156289 A CN110156289 A CN 110156289A CN 201910562674 A CN201910562674 A CN 201910562674A CN 110156289 A CN110156289 A CN 110156289A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/10—Temperature conditions for biological treatment
- C02F2301/106—Thermophilic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
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Abstract
The invention discloses a kind of chicken manure anaerobic pretreatment system and methods, it is related to chicken manure processing technology field, the system includes the first desanding basin, the second desanding basin, anaerobic fermentation tank, pipe gravity flow pipeline, steam generator and feed pump, the pipe gravity flow pipeline is for the liquid in first desanding basin to be introduced into the second desanding basin, the delivery outlet of the steam generator is connected to by pipeline with second desanding basin, and the feed pump is for the liquid in second desanding basin to be pumped into the anaerobic fermentation tank.The system desanding effect is good, and equipment failure rate is low, and operating cost is low.This method is chicken manure before entering fermentor, by two-stage desanding impurity removal, removes the grains of sand and impurity in chicken manure;Hydrolysis acidification further discharges and removes the grains of sand in chicken manure, reaches better desanding effect, while solving the problems, such as that fermentor is easily acidified and anaerobic fermentation is gone on smoothly, it is ensured that fermentation efficiency.
Description
Technical field
The present invention relates to chicken manure processing technology field, specially a kind of chicken manure anaerobic pretreatment system and method.
Background technique
Aquaculture is made that important contribution in the economy and employment in area, but also produces aquaculture thereupon
The problem of fecal pollution.Especially develop preferable area in poultry industry, people are enjoying poultry bring economic interests
While, it is also subjected to " a ground chicken manure " bring environmental pollution pain.If these chicken manures are handled not in time, water body richness will lead to
Nutrient laden causes the pollution of soil and groundwater, surface water, destroys ecological environment;Meanwhile the stench and pernicious gas generated
Air can be polluted.Moreover, in chicken manure people will would generally be jeopardized by all means containing a large amount of disinfect pathogens, worm's ovum etc.
Class health.It therefore, is the sustainable development for maintaining chicken poultry aquaculture, aquaculture waste harmless treatment is very urgent.
It is to utilize the life of aerobic bacteria under aerobic conditions currently, handling frequently with oxygen consumption composting process chicken manure
Life activity absorbs dunghill, is aoxidized, is decomposed.But the process of composting process processing is complicated, and fermentation period is long, resource utilization
It is low, and for culture zone, a large amount of new chicken manures can be all generated daily, daily greatly also by the operation difficulty of chicken manure sealing stack retting
And it is unrealistic, therefore this kind of mode is for handling chicken manure and impracticable.And chicken manure aerobic composting process is compared, anaerobic methane production gas work
Artistic skill realizes conversion of the chicken manure pollutant to clean energy resource and organic fertilizer, and resource utilization is higher, therefore Anaerobic Treatment chicken manure work
Skill enjoys great popularity.It is to put into chicken manure in anaerobic fermentation tank successively when in the prior art, by anaerobic methane process chicken manure
By hydrolysis, acidification, produce acetic acid and methane phase four-stage completion Anaerobic Treatment.
However, in actual life, the sandstone containing 10% ratio in chicken feed proportion, although these sandstones disappearing by chicken
Change system, but it is most of it is unconverted excreted with chicken manure, also inevitably can be by extraneous ring while when collecting chicken manure
Sand particles in border are collected together.Through counting, sand content is generally between 8%-10% in chicken manure, if before putting into chicken manure not
Sandstone can be effectively removed, can be deposited in fermenter base, tank body dischargeable capacity, damage mixing plant is influenced, needs often
Clear tank.Meanwhile when collecting chicken manure, also often containing the impurity such as feather, polybag in excrement, the impurity such as feather because toughness is big,
It is not easy to crush, if not removed before putting into chicken manure, a large amount of feathers can be wound in pump, blocked water pump, influenced to ferment
Journey is gone on smoothly.In addition, food is usually not sufficiently digested and assimilated and is just drained out because the alimentary canal of chicken is short and small
Coming, this to be easy to produce acid when chicken manure anaerobic fermentation, and adding up a large amount of organic acids in the short time will cause acid poisoning in fermentor,
It is serious that biogas is inhibited to generate, influence fermentation efficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of chicken manure anaerobic pretreatment system and method,
It can effectively solve the problem of chicken manure mostly and is easily acidified containing sand, anaerobic fermentation gone on smoothly, it is ensured that fermentation efficiency.
The purpose of the present invention is achieved through the following technical solutions:
A kind of chicken manure anaerobic pretreatment system, including the first desanding basin, the second desanding basin, anaerobic fermentation tank, pipe gravity flow pipeline, steam
Generator and feed pump, the pipe gravity flow pipeline are described for the liquid in first desanding basin to be introduced into the second desanding basin
The delivery outlet of steam generator is connected to by pipeline with second desanding basin, and the feed pump is used for second desanding basin
In liquid be pumped into the anaerobic fermentation tank.
Further, first desanding basin includes precipitating desanding basin and filtering and impurity removing pond, the precipitating desanding basin and mistake
Filter out the top connection in miscellaneous pond;
Blender a is provided in the precipitating desanding basin, the bottom of the precipitating desanding basin is provided with sediment hole a, the sediment
It is provided with above a of hole and grabs sand machine a, the precipitating desanding basin offers charging far from a lateral roof in the filtering and impurity removing pond
Mouthful;
The bottom of pond in the filtering and impurity removing pond is provided with several platforms of stepped arrangement, and the height of several platforms is to separate
The direction of the precipitating desanding basin successively reduces, and mechanical grille, the filtering and impurity removing are provided at the top of several platforms
Pond offers liquid outlet far from a side lower part of the precipitating desanding basin, and one end of the pipe gravity flow pipeline and the liquid outlet connect
It is logical.
Further, it is provided with top cover a at the top of first desanding basin, the blender a, grabs sand machine a and mechanical lattice
Grid are fixedly connected with the top cover a.
Further, the top of second desanding basin offers inlet, and the height of the inlet is lower than the mistake
The height of liquid level in miscellaneous pond is filtered out, the one end of the pipe gravity flow pipeline far from the liquid outlet is connected to the inlet.
Further, several blender b are provided in second desanding basin, the bottom of second desanding basin is provided with
Sediment cheats b, is provided with above the sediment hole b and grabs sand machine b, the lower part of second desanding basin is provided with leakage fluid dram, described
Leakage fluid dram is connected to the suction inlet of the feed pump by pipeline;Top cover b is provided at the top of second desanding basin, it is described to grab
Sand machine b and blender b is fixedly connected with the top cover b.
Further, the steam generator is arranged higher than second desanding basin, the output end of the steam generator
It is connected with jet chimney, the other end insertion of the jet chimney is set in second desanding basin.
It further, further include controller and temperature sensor, the temperature sensor is for monitoring second desanding
Fluid temperature in pond, the controller are electrically connected with the temperature sensor and steam generator respectively.
A kind of chicken manure anaerobic pretreatment method is related to the first desanding basin, the second desanding basin, steam generator and anaerobic fermentation
Tank includes the following steps:
S1, backflow biogas slurry or tap water are launched together with dried poultrymanure in the first desanding basin;
S2, dried poultrymanure are deployed into chicken manure liquid in the first desanding basin, and through the first desanding basin impurity screening and desanding;
S3, the chicken manure liquid handled through first desanding basin is introduced into second desanding basin;
S4, the hot steam generated using the steam generator heat the chicken manure liquid in second desanding basin, and make chicken manure
Liquid precipitates desanding in second desanding basin;
S5, the chicken manure liquid handled through second desanding basin is launched in the anaerobic fermentation tank.
Further, in the step S4, the heating temperature to chicken manure liquid is 40 DEG C to 42 DEG C, and maintains the temperature deposition
20 hours or more.
The beneficial effects of the present invention are:
The chicken manure anaerobic pretreatment method includes the technical process of the desanding of chicken manure two-stage and two-step fermentation, can be filled by two-stage desanding
Divide the impurity such as removal chicken feather, and the sand of 80%-90% in chicken manure is removed, it is avoided to deposit in fermenter base, and causes to influence
Situations such as tank body dischargeable capacity, damage mixing plant, occurs, and extends the clear tank period.Is carried out before chicken manure enters fermentor
The hydrolysis acidification of one step is handled, and a large amount of organic acids that can effectively prevent hydrolysis acidification generation accumulate in fermentor, causes to ferment
Acid poisoning in tank, thus the case where inhibiting biogas to generate, influencing fermentation efficiency generation.Meanwhile Hydrolysis Acidification and second
Desanding process carries out simultaneously, and the grains of sand in chicken manure can be further discharged and removed by hydrolysis acidification, reaches better desanding effect
Fruit.
The first desanding basin, the second desanding basin, anaerobic fermentation tank, pipe gravity flow pipeline, steaming is arranged in the chicken manure anaerobic pretreatment system
Vapour generator and feed pump can be used for completing the two-stage desanding and the processing step of two-step fermentation of chicken manure, and desanding effect is good, sets
Standby failure rate is low, operating cost is low.Setting precipitating desanding basin can accelerate the tune of chicken manure liquid by blender in first desanding basin
Match, and accelerates the process of first time desanding;Filtering and impurity removing pond is set, the chicken feather etc. for floating on liquid level can be removed by mechanical grille
Impurity further settles chicken manure liquid by stair-stepping multi-stage platform, reaches better first time desanding effect.Second desanding
Pond realizes the function of its acidification, while blender is arranged inside, after may make acidification by being connected to steam generator
The chicken manure that viscosity reduces releases the grains of sand as early as possible, reaches better desanding effect.First desanding basin and the second desanding basin are respectively provided with
Sediment hole and pawl sand machine can conveniently clear up bottom of pond product sand, easy to operate;Its top is respectively provided with top cover, guarantees people and animals' peace
Entirely, while convenient for equipment it installs.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of chicken manure anaerobic pretreatment system of the present invention;
Fig. 2 is the structural schematic diagram of the first desanding basin;
Fig. 3 is the structural schematic diagram of the second desanding basin;
Fig. 4 is the overlooking structure diagram for inventing a kind of chicken manure anaerobic pretreatment system.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
A kind of chicken manure anaerobic pretreatment method is needed using the first desanding basin, the second desanding basin, steam generator and anaerobism
Fermentor includes the following steps:
S1, backflow biogas slurry or tap water are launched together with dried poultrymanure in the first desanding basin;
S2, dried poultrymanure and backflow biogas slurry or tap water are deployed into chicken manure liquid in the first desanding basin, and therein through precipitating removing
The impurity such as chicken feather are removed by filtration thereafter in sand grains;
S3, the chicken manure liquid handled through the first desanding basin is introduced into the second desanding basin;
S4, chicken manure liquid continue to precipitate in the second desanding basin, remove sand grains therein;Meanwhile steam generator is opened, it is produced
It is heated in the chicken manure liquid that raw hot steam is passed through in the second desanding basin.When it is implemented, the heat that steam generator generates is steamed
Vapour control at 40 DEG C to 42 DEG C, and by monitoring means control the second desanding basin in temperature maintain the temperature under the conditions of, and
Kept for chicken manure liquid precipitate 20 hours or more.
S5, the chicken manure liquid handled through second desanding basin is launched in the anaerobic fermentation tank.
It include the technical process of two-stage desanding and two-step fermentation in above-mentioned chicken manure preprocess method.Firstly, in above-mentioned steps
In S2, dried poultrymanure and solvent are launched according to a certain ratio, are deployed into chicken manure liquid, and can tentatively remove larger particles in the chicken manure liquid
Heavier sand grains, and the floating materials such as lighter chicken feather, polybag are removed by filters, the less chicken manure liquid of silt content is obtained,
Complete removal of impurities and first time desanding.Thereafter, in step s3, the less chicken manure liquid of the silt content is introduced into the second desanding basin.By
Step S4 under the temperature environment, can accelerate chicken it is found that chicken manure liquid maintains in the isoperibol of medium temperature in the second desanding basin
Excrement hydrolysis acidification, by it macromolecular substances or insoluble substance resolve into the short chain of such as acetic acid and can turn sour, complete chicken manure
First time fermentation.The Hydrolysis Acidification is completed before entering anaerobic fermentation tank, can effectively prevent the big of hydrolysis acidification generation
Amount organic acid accumulates in fermentor, acid poisoning in fermentor is caused, thus the case where inhibiting biogas to generate, influencing fermentation efficiency
Occur.In this step, maintain 20 hours or more, it on the one hand may make chicken manure liquid to be fully hydrolyzed acidification, it avoided to influence fermentation
The efficiency of tank;On the other hand, after because of chicken manure hydrolysis acidification, viscosity is reduced, and the sand being wrapped in chicken manure can further discharge, pass through
Sufficiently precipitating, completes second of desanding in the second desanding basin, can further remove the chicken manure class grains of sand, avoid it in fermentor
Bottom deposit, and lead to situations such as influencing tank body dischargeable capacity, damage mixing plant generation, extend the clear tank period.In addition,
In the above process, because chicken manure liquid is only allotment and preliminary treatment process in the first desanding basin, desanding requirement is lower, therefore when daily
It can be added at any time in the desanding basin and be handled after generation chicken manure, be waited without storing, be extremely applicable to poultry farming industry.
To implement above-mentioned chicken manure anaerobic treatment method, the present invention provides a kind of chicken manure anaerobic pretreatment system, and structure is such as
Shown in Fig. 1 to Fig. 4.The processing system includes the first desanding basin 1, the second desanding basin 2, anaerobic fermentation tank 3, pipe gravity flow pipeline 4, steam
Generator 5 and feed pump 6.Pipe gravity flow pipeline 4 is for the liquid in the first desanding basin 1 to be introduced into the second desanding basin 2, steam generation
The delivery outlet of device 5 is connected to by pipeline with the second desanding basin 2, and feed pump 6 is used to the liquid in the second desanding basin 2 being pumped into anaerobism
In fermentor 3.
When it is implemented, the first desanding basin 1 includes precipitating desanding basin 11 and filtering and impurity removing pond 12, desanding basin 11 and mistake are precipitated
Filter out the top connection in miscellaneous pond 12.It precipitates desanding basin 11 and offers feed inlet 114, mistake far from a lateral roof in filtering and impurity removing pond 12
It filters out miscellaneous pond 12 and offers liquid outlet far from a side lower part of precipitating desanding basin 11, one end of pipe gravity flow pipeline 4 is connected to liquid outlet.
Backflow biogas slurry or tap water and dried poultrymanure, which are put into precipitating desanding basin 11 according to certain proportion through feed inlet 114, completes chicken manure
The allotment of liquid and for the first time precipitating desanding;Thereafter chicken manure liquid is spilled over in filtering and impurity removing pond 12 through above-mentioned top connection position and carries out
Filtering, removes the impurity such as the chicken feather of floating;Later, the chicken manure liquid handled flows to pipe gravity flow pipeline 4 through liquid outlet.Above-mentioned precipitating is removed
Blender a111 is provided in sand pond 11, blender a111 includes motor, stirring rod and stirring blade, in the prior art
Commonly used equipment does not repeat them here, which can stir in precipitating desanding basin 11, sufficiently completes the allotment of chicken manure liquid, meanwhile, warp
Grains of sand sedimentation can be accelerated by crossing slow stirring, reach preferable desanding effect.The bottom of precipitating desanding basin 11 is provided with sediment hole
It is provided with above a112, sediment hole a112 and grabs sand machine a113, it is existing skill that it includes crane and pawl sand hopper that this, which grabs sand machine a113,
Art conventional equipment, does not repeat them here.After above-mentioned chicken manure liquid is agitated, the grains of sand, which are fallen into the a112 of sediment hole, to be accumulated, and can be determined as needed
Phase is caught desilting outside pond by grabbing sand machine a113.The bottom of pond in above-mentioned filtering and impurity removing pond 12 is provided with the several of stepped arrangement
The height of platform 121, several platforms 121 is successively reduced to the direction far from precipitating desanding basin 11, and the top of several platforms 121 is equal
It is provided with mechanical grille 122.Through precipitating desanding basin 11, treated after chicken manure liquid spills into filtering and impurity removing pond 12, along being in
Step-like each platform 121 flows down, and during flowing down, platforms at different levels can further be settled the grains of sand in chicken manure liquid,
Reach good desanding effect.Above-mentioned mechanical grille 122 is also conventional equipment in the prior art, in chicken manure liquid stream through at different levels flat
When platform 121, the lighter impurity such as chicken feather, polybag is floated on liquid level, is stopped to filter by mechanical grilles 122 at different levels, realization removes
Miscellaneous purpose.Further, the top of first desanding basin 1 is provided with top cover a and closes to it, and people and animals is on the one hand avoided to fall pond
In, increase the safety used;Another aspect top cover a can be used for installing blender a111, grab sand machine a113 and mechanical grille
The equipment such as 122.
The top of above-mentioned second desanding basin 2 offers inlet, and the height of inlet is lower than liquid level in filtering and impurity removing pond 12
Height, pipe gravity flow pipeline 4 is connected to far from one end of liquid outlet with inlet, and chicken manure liquid directly can flow into the by pipe gravity flow pipeline 4
In two desanding basins 2, without adding any equipment, reduce equipment investment.Likewise, being provided in above-mentioned second desanding basin 2
Several blender b21, the bottom of the second desanding basin 2 are provided with sediment hole b22, are provided with above the b22 of sediment hole and grab sand machine
The top of b23, the second desanding basin 2 are provided with top cover b, grab sand machine b23 and blender b21 is fixedly connected with top cover b.Blender
B21, it grabs sand machine b23 and selects conventional equipment in the prior art, the course of work and blender a111, the work for grabbing sand machine a113
Process is identical, and top cover b is identical as the effect of top cover a, is not repeated herein.
Above-mentioned steam generator 5 is conventional equipment in the prior art, using fuel or the thermal energy handle of other energy
Water heating generates hot steam discharge.Make in setting, the position of the steam generator 5 is higher than the position of the second desanding basin 2, steam hair
The output end of raw device 5 is connected with jet chimney, and the other end insertion of jet chimney is set in the second desanding basin 2.Steam generation
The hot steam that device 5 generates is full of in the second desanding basin 2, is directly heated to the chicken manure liquid in it by heat exchange, thus
Promote chicken manure liquid hydrolysis acidification.In the specific implementation, to reach better Hydrolysis Acidification, 2 domestic demand of the second desanding basin is maintained
In 40 DEG C to 42 DEG C of isoperibol.Therefore it is further, which further includes controller and temperature sensor, controller point
It is not electrically connected with temperature sensor and steam generator 5.The temperature sensor is used to monitor fluid temperature in the second desanding basin 2, and
Monitoring result is fed back into controller, steam generator 5 is controlled by controller, specifically, when temperature sensor monitors
When the temperature arrived is lower than above-mentioned temperature value, controller controls steam generator 5 and starts;When temperature sensor monitors temperature value height
When above-mentioned temperature value, controller controls steam generator 5 and shuts down, to realize the constant temperature control of chicken manure liquid in the second desanding basin 2
System.
The lower part of second desanding basin 2 is provided with leakage fluid dram, leakage fluid dram is connected to the suction inlet of feed pump 6 by pipeline,
It is taken out, then is pumped into anaerobic fermentation tank 3 by feed pump 6 by the leakage fluid dram through the second desanding basin 2 treated chicken manure liquid.In reality
Shi Shi, which selects CSTR fermentor, by further to chicken manure anaerobic fermentation, completing the treatment process of chicken manure.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to shape described herein
Formula should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be herein
In the contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art are carried out
Modifications and changes do not depart from the spirit and scope of the present invention, then all should be within the scope of protection of the appended claims of the present invention.
Claims (9)
1. a kind of chicken manure anaerobic pretreatment system, which is characterized in that including the first desanding basin (1), the second desanding basin (2), anaerobism
Fermentor (3), pipe gravity flow pipeline (4), steam generator (5) and feed pump (6), the pipe gravity flow pipeline (4) are used for described first
Liquid in desanding basin (1) is introduced into the second desanding basin (2), the delivery outlet of the steam generator (5) by pipeline with it is described
Second desanding basin (2) connection, the feed pump (6) are used to for the liquid in second desanding basin (2) to be pumped into the anaerobism and send out
In fermentation tank (3).
2. a kind of chicken manure anaerobic pretreatment system according to claim 1, which is characterized in that first desanding basin (1)
Including precipitating desanding basin (11) and filtering and impurity removing pond (12), the top of precipitating desanding basin (11) and filtering and impurity removing pond (12) connects
It is logical;
Blender a(111 is provided in the precipitating desanding basin (11)), the bottom of precipitating desanding basin (11) is provided with sediment
Cheat a(112), the sediment cheats a(112) above be provided with grab sand machine a(113), the precipitating desanding basin (11) is far from described in
One lateral roof in filtering and impurity removing pond (12) offers feed inlet (114);
The bottom of pond of the filtering and impurity removing pond (12) is provided with several platforms (121) of stepped arrangement, several platforms
(121) height is successively reduced to the direction far from precipitating desanding basin (11), is all provided at the top of several platforms (121)
It is equipped with mechanical grille (122), the filtering and impurity removing pond (12) offers out far from a side lower part of precipitating desanding basin (11)
One end of liquid mouth, the pipe gravity flow pipeline (4) is connected to the liquid outlet.
3. a kind of chicken manure anaerobic pretreatment system according to claim 2, which is characterized in that first desanding basin (1)
Top be provided with top cover a, the blender a(111), grab sand machine a(113) and mechanical grille (122) it is solid with the top cover a
Fixed connection.
4. a kind of chicken manure anaerobic pretreatment system according to claim 2, which is characterized in that second desanding basin (2)
Top offer inlet, the height of the inlet is lower than the height of the interior liquid level of the filtering and impurity removing pond (12), it is described from
Flow tube road (4) is connected to far from one end of the liquid outlet with the inlet.
5. a kind of chicken manure anaerobic pretreatment system according to claim 4, which is characterized in that second desanding basin (2)
Inside it is provided with several blender b(21), the bottom of second desanding basin (2) is provided with sediment hole b(22), the sediment cheats b
(22) be provided with above and grab sand machine b(23), the lower part of second desanding basin (2) is provided with leakage fluid dram, the leakage fluid dram with
The suction inlet of the feed pump (6) is connected to by pipeline;It is provided with top cover b at the top of second desanding basin (2), it is described to grab sand
Machine b(23) and blender b(21) be fixedly connected with the top cover b.
6. a kind of chicken manure anaerobic pretreatment system according to claim 5, which is characterized in that the steam generator (5)
It is arranged higher than second desanding basin (2), the output end of the steam generator (5) is connected with jet chimney, the steam pipe
The other end insertion in road is set in second desanding basin (2).
7. a kind of chicken manure anaerobic pretreatment system according to claim 6, which is characterized in that further include controller and temperature
Sensor, the temperature sensor for monitoring the interior fluid temperature of second desanding basin (2), the controller respectively with it is described
Temperature sensor and steam generator (5) are electrically connected.
8. a kind of chicken manure anaerobic pretreatment method, which is characterized in that be related to the first desanding basin, the second desanding basin, steam generator
And anaerobic fermentation tank, include the following steps:
S1, backflow biogas slurry or tap water are launched together with dried poultrymanure in the first desanding basin;
S2, dried poultrymanure are deployed into chicken manure liquid in the first desanding basin, and through the first desanding basin impurity screening and desanding;
S3, the chicken manure liquid handled through first desanding basin is introduced into second desanding basin;
S4, the hot steam generated using the steam generator heat the chicken manure liquid in second desanding basin, and make chicken manure
Liquid precipitates desanding in second desanding basin;
S5, the chicken manure liquid handled through second desanding basin is launched in the anaerobic fermentation tank.
9. a kind of chicken manure anaerobic pretreatment method according to claim 8, which is characterized in that in the step S4, to chicken
The heating temperature of liquid manure is 40 DEG C to 42 DEG C, and is maintained the temperature deposition 20 hours or more.
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CN112547299A (en) * | 2020-12-07 | 2021-03-26 | 安徽科技学院 | Multistage filtration system of pretreatment raw materials for biological marsh gas |
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CN112547299A (en) * | 2020-12-07 | 2021-03-26 | 安徽科技学院 | Multistage filtration system of pretreatment raw materials for biological marsh gas |
CN112547299B (en) * | 2020-12-07 | 2023-09-22 | 安徽科技学院 | Pretreatment raw material multistage filtering system for biological biogas |
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