CN107980548A - A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system and method - Google Patents
A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system and method Download PDFInfo
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- CN107980548A CN107980548A CN201711461558.XA CN201711461558A CN107980548A CN 107980548 A CN107980548 A CN 107980548A CN 201711461558 A CN201711461558 A CN 201711461558A CN 107980548 A CN107980548 A CN 107980548A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
- C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a kind of domestic sludge anaerobic reaction to cultivate organic nutrient soil system and method, belong to environmental treatment technical field, by sludge aerobic digestion device, temperature monitoring regulating device, PH monitors adjusting apparatus and finished product crushes mixing arrangement composition, including the fermentation tank laterally set, the first agitating paddle in fermentation tank, the second agitating paddle and controller in fermentation tank, heat conducting furnace, first water tank, second water tank, the first temperature inductor being arranged on the first agitating paddle, and it is arranged on multiple second temperature inductors on fermentation tank inner wall, PH monitors sensor, PH regulating boxs equipped with alkaline conditioner, pulverizer and the mixing chamber being placed on on-ground weigher, automatic addition microbial inoculum can be played, calcium oxide, heating, fermentation, crush and prepare the effect of organic nutrient soil.
Description
Technical field
The present invention relates to environmental treatment technical field, more specifically, it relates to which a kind of domestic sludge anaerobic reaction is cultivated
Organic nutrient soil system and method.
Background technology
Dewatered sludge of urban sewage plant is solid-state castoff caused by municipal wastewater treatment plant processing waste water.As China is being built
The increase of sewage plant number, sludge yield can still increase.Containing battalion needed for the plants such as a large amount of organic matters and N, P and K in municipal sludge
Element is supported, it is to realize such solid waste reducing to be used as vegetables matrix after sludge fermentation processing, innoxious and recycling
Effective way.The outdoor aerobic fermentation of generally use, air pollution is larger, then needs input big using advanced fermentation cabin technique
Equipment and power are measured, processing cost is higher for Nutrition Soil caused by aerobic fermentation.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of domestic sludge anaerobic reaction and cultivate to have
Machine Nutrition Soil system and method, it has the characteristics that to realize sewage sludge harmlessness, recycling.
To achieve the above object, the present invention provides following technical solution：
A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system, by sludge aerobic digestion device, temperature monitoring tune
Regulating device, PH monitoring adjusting apparatus and finished product crush mixing arrangement composition, wherein：
Fermentation tank that the sludge aerobic digestion device includes laterally setting, first in the fermentation tank stir
Paddle, the second agitating paddle and controller in the fermentation tank are mixed, the top of the fermentation tank is equipped with mud inlet, institute
The bottom for stating fermentation tank is equipped with mud mouth, and first agitating paddle is set along the fermentation tank axis, second stirring
Paddle is parallel to first agitating paddle and is located at the fermentation tank bottom, and second agitating paddle is spiral shape, and drives institute
State bottom in fermentation tank to move to the mud mouth direction away from the sludge at the mud mouth, drive first agitating paddle
The first motor rotated, the second motor for driving second agitating paddle to rotate are electrically connected with the controller respectively, the hair
Ferment inner tank wall scribbles wear-resistant paint, and the wear-resistant paint is by the silicone modified polyester resin 10-12 that matches in parts by weight
Part, 15-20 parts of zinc borate phenol-formaldehyde resin modified, 6-8 parts of graphite powder, 15-20 parts of solvent, 10-12 parts of multifunctional assistant, fire retardant
1-2 parts of 8-10 parts, thickener compositions；
The temperature monitoring regulating device includes heat conducting furnace, the first water tank, the second water tank, is arranged on first agitating paddle
On the first temperature inductor and multiple second temperature inductors for being arranged on the fermentation tank inner wall, described first
Water tank is wrapped in the fermentation tank outer wall and heating chamber, second water tank and institute is formed between the fermentation tank outer wall
To state and form circulation loop between the first water tank, the heat conducting furnace heats second water tank by biogas, and described second
Tank top is equipped with gas bleeder valve；
The PH monitorings adjusting apparatus includes PH monitorings sensor, the PH regulating boxs equipped with alkaline conditioner, the PH tune
The opening of section case is equipped with the first control valve, and first control valve is electrically connected with PH monitoring sensors with the controller
Connect；
The finished product, which crushes mixing arrangement, includes pulverizer and the mixing chamber being placed on on-ground weigher, the pulverizer into
Material mouth is connected with the mud mouth, and the discharge port of the pulverizer is connected with the mixing chamber, is equipped with and is matched somebody with somebody at the top of the mixing chamber
Material mouth, the mixing chamber is interior to be equipped with the 3rd agitating paddle, and the 3rd agitating paddle is vertically arranged.
By using above-mentioned technical proposal, domestic sludge is transported to fermentation tank, by the first agitating paddle to sludge
It is stirred, the pH value of sludge can be known in real time by monitoring sensor by PH, and open and close the first control by controller
Valve processed, so that the pH value of conditioning of mud, improves the ferment effect of sludge, realize the heating to sludge by heat conducting furnace, realize whole
The fermentation and drying of a sludge, pulverization process is carried out by pulverizer to sludge, and the sludge after crushing is transported to mixing
Interior, the setting of on-ground weigher can clearly know the gross weight of sludge in mixing chamber, according to the weight of sludge, so as to from
Material mouth is proportionally added into desulfurated plaster and lignite, realizes the preparation of organic nutrient soil.
Further, supporting rack being equipped with below second water tank, the heat conducting furnace is located in support frame as described above, and described the
Two water tanks are located at the top of first water tank, pass through between the upper end of second water tank and the upper end of first water tank
One pipeline connects, and the lower end of second water tank is connected with the lower end of first water tank by second pipe, second water
Be provided with suction pump in case, the suction pump connects first water tank by the second pipe, the suction pump with it is described
Controller is electrically connected.
By using above-mentioned technical proposal, the first water tank and are realized by the first pipeline, second pipe and suction pump
Circulation loop between two water tanks, heat conducting furnace is arranged on the underface of the second water tank, and is reacted by using anaerobic sludge digestion
The biogas of generation heats the second water tank, can play and rationally be increased using resource and reduction since it is desired that storing a large amount of biogas
The equipment cost added, the second water tank is arranged on above the first water tank, in the first water tank plus hot medium because gravity from
It is dynamic to flow in heating chamber, by controlling the speed of drawing water of suction pump, realize the water source flowing between the first water tank and the second water tank
Speed, changes heat transference efficiency.
Further, the fermentation tank is equipped with heavy metal regulating box, and the heavy metal regulating box is located at the fermentation
The top of tank body, the heavy metal regulating box is built-in calcium oxide powder, and the opening of the heavy metal regulating box is equipped with the second control
Valve processed, second control valve are electrically connected with the controller.
By using above-mentioned technical proposal, according to the actual content of beary metal of sludge, second can be opened by controller
Control valve adds calcium oxide into fermentation tank, and heavy metal passivation is carried out to sludge, reduces the sludge subsequently used to environment
Harm, relatively good realizes the effect that calcium oxide is added from trend fermentation tank, while also can by the second control valve
Preferably control adds the addition of calcium oxide so that whole process is controllable and orderly.
Further, the heavy metal regulating box is in cone shape, and is made of transparent material, the heavy metal regulating box
Top is equipped with cover board, and the cover board is equipped with the first lower edge of heavy metal regulating box installation and under described first
Along second lower edge in outside.
By using above-mentioned technical proposal, meeting water due to calcium oxide can react, under the first of cover board
Along realize and heavy metal regulating box at the top of between sealed connection, the setting of the second lower edge can prevent the water droplet on rainy day from the
Entered at the fine crack of one lower edge in heavy metal regulating box, can preferably play the effect of sealing heavy metal regulating box.
Further, mixed bacteria storage box is additionally provided with the fermentation tank, the mixed bacteria storage box is located at institute
The top of the fermentation tank is stated, and is located remotely from the side of the mud inlet, the opening of the mixed bacteria storage box is set
There is third control valve, the third control valve is electrically connected with the controller.
By using above-mentioned technical proposal, the requirement to microbial inoculum is reacted according to anaerobic sludge digestion, it is possible to achieve in proportion
The strain of needs is put into, it is convenient in follow-up whole process, third control valve is opened and closed to fermentation tank by controller
Interior to add quantitative strain, convenient to operate, dosage is accurate.
Further, the sludge between the feed inlet and the mud mouth is transmitted by the first conveyer belt, the crushing
Sludge between machine and the mixing chamber is transmitted by the second conveyer belt.
By using above-mentioned technical proposal, the setting of the first conveyer belt and the second conveyer belt so that sludge is in fermentation, crushing
And during being mixed and made into organic nutrient soil, it is possible to achieve the full automatic transport of sludge.
Further, the heat conducting furnace, which is equipped with, is used to controlling the flow control valve of biogas flow velocity, the flow control with
The controller is electrically connected.
By using above-mentioned technical proposal, in whole heating process, according to the first temperature inductor and second temperature sense
The sludge temperature at the diverse location that device feeds back to is answered, can not only pass through controller and control the extraction speed of suction pump to change hair
The received heat transfer of fermentation tank body, can also be by varying the flow velocity of biogas, so as to change heating effect of the heat conducting furnace to the second water tank
Fruit, changes the temperature of medium in the second water tank so as to change the sludge temperature in fermentation tank so that the adjusting to temperature is more
Convenience and diversity.
Further, the mud inlet is coniform hatch frame, and is connected with hinged sealing plate.
By using above-mentioned technical proposal, set coniform mud inlet more easily can transport sludge to fermentation
In tank body.
Further, a kind of method that domestic sludge anaerobic reaction cultivates organic nutrient soil, comprises the following steps：
The first step, transport sludge into the fermentation tank；
Second step, addition and the calcium oxide powder of sludge weight ratio 0.4~1% in the fermentation tank, pass through stirring pair
Sludge carries out heavy metal passivation；
3rd step, add conditioner in the fermentation tank, and the percentage by weight of the sludge and the conditioner is：
10000：3~5；
4th step, the quality percentage that composite bacteria, the sludge and the composite bacteria are added in the fermentation tank
Than for 1000：3, the composite bacteria by cell quantity percentage be 25%~45% cellulose decomposing bacteria, 18%~
31% sulfate reducing bacteria, 9%~15% proteolyticbacteria, 8%~15% fat decomposing bacteria, 3%~7% production
Hydrogen produces acetic acid bacteria, remaining is methane phase Gu bacterium；
5th step, using the heat conducting furnace heat the sludge in the fermentation tank, and to the fermentation tank
Oxygen is inside passed through, fermentation tank body temperature described in whole process is maintained at 60~70 DEG C, 1~2h of duration；
6th step, remove oxygen to being passed through nitrogen in the fermentation tank, and the fermentation tank body temperature is maintained at
30~35 DEG C, ferment to the sludge in the fermentation tank, 8~10h of whole process duration, in whole fermentation process
Sludge PH is monitored on time, and when PH drastically glides, using calcium oxide conditioning of mud PH, producing, the biogas stage is dirty to material progress
Mud is adjusted, and material pH value is maintained between 6.8-7.2；
The biogas that 7th step, burning fermentation produce heats the fermentation tank as heat source；Make in the fermentation tank
Temperature be maintained at 100~105 DEG C, 3~5h of whole process duration；
8th step, by after desiccation and moisture content be 35~45% sludge crushed using the pulverizer, crushing
Desulfurated plaster, lignite are added in dewatered sludge afterwards, and is stirred, mixing time is 30~40min, is mixed and made into organic battalion
Soil is supported, and dewatered sludge, desulfurated plaster and lignite are by weight percentage：65~75%: 10~20%: 5~15%.
In conclusion the invention has the advantages that：
By setting the heavy metal regulating box opened and closed by controller, mixed bacteria to store in fermentation tank
Case, PH monitorings sensor, PH regulating boxs, the first temperature inductor and second temperature inductor, can play and pass through controller
Realize be automatically brought into operation a series of to the passivation of sludge progress heavy metal, fermentation, drying etc..
Brief description of the drawings
Fig. 1 is that a kind of domestic sludge anaerobic reaction of embodiment provided by the invention cultivates the whole of organic nutrient soil system
Body structure diagram；
Fig. 2 for a kind of sludge aerobic digestion device of embodiment provided by the invention, temperature monitoring regulating device and
PH monitors the part-structure schematic diagram of adjusting apparatus；
Fig. 3 is the enlarged structure schematic diagram in A portions in Fig. 2；
Fig. 4 is a kind of the first conveyer belt of embodiment provided by the invention, finished product crushing mixing arrangement and the second biography
Send the part-structure schematic diagram of band.
In figure：1st, sludge aerobic digestion device；11st, fermentation tank；111st, mud inlet；112nd, mud mouth；113rd, heavy metal
Regulating box；114th, the second control valve；115th, cover board；1151st, the first lower edge；1152nd, the second lower edge；116th, mixed bacteria stores
Case；117th, third control valve；12nd, the first agitating paddle；13rd, the second agitating paddle；14th, controller；15th, the first motor；16th, the second electricity
Machine；2nd, temperature monitoring regulating device；21st, heat conducting furnace；211st, flow control valve；22nd, the first water tank；221st, heating chamber；23rd, second
Water tank；231st, gas bleeder valve；232nd, suction pump；24th, the first temperature inductor；25th, second temperature inductor；26th, supporting rack；27、
First pipeline；28th, second pipe；3rd, PH monitors adjusting apparatus；31st, PH monitors sensor；32nd, PH regulating boxs；321st, the first control
Valve processed；4th, finished product crushes mixing arrangement；41st, pulverizer；411st, feed inlet；412nd, discharge port；42nd, on-ground weigher；43rd, mixing chamber；
431st, ingredients mouth；432nd, the 3rd agitating paddle；5th, the first conveyer belt；6th, the second conveyer belt.
Embodiment
Embodiment：
The present invention is described in further detail below in conjunction with attached drawing 1-4.
A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system, as shown in Figs 1-4, by sludge aerobic digestion device
1st, temperature monitoring regulating device 2, PH monitoring adjusting apparatus 3 and finished product crush mixing arrangement 4 and form, wherein：
The fermentation tank 11 that sludge aerobic digestion device 1 includes laterally setting, the first stirring in fermentation tank 11
Paddle 12, the second agitating paddle 13, controller 14 in fermentation tank 11, the top of fermentation tank 11 are equipped with mud inlet 111, hair
The bottom of fermentation tank body 11 is equipped with mud mouth 112, and the first agitating paddle 12 is set along 11 axis of fermentation tank, and the second agitating paddle 13 is parallel
In the first agitating paddle 12 and it is located at 11 bottom of fermentation tank, the second agitating paddle 13 is spiral shape, and drives bottom in fermentation tank 11
Portion is moved away from the sludge at mud mouth 112 to 112 direction of mud mouth, the first motor 15 of drive the first agitating paddle 12 rotation,
The second motor 16 that the second agitating paddle 13 rotates is driven to be electrically connected respectively with controller 14, in the present embodiment, controller 14 is set
On 11 side outer wall of fermentation tank；
Temperature monitoring regulating device 2 includes heat conducting furnace 21, the first water tank 22, the second water tank 23, is arranged on the first agitating paddle
The first temperature inductor 24 on 12 and the multiple second temperature inductors 25 being arranged on 11 inner wall of fermentation tank, second
Temperature inductor 25 along fermentation tank 11 axis direction be distributed, the first water tank 22 be wrapped in 11 outer wall of fermentation tank and with fermentation
Heating chamber 221 is formed between 11 outer wall of tank body, circulation loop is formed between the second water tank 23 and the first water tank 22, heat conducting furnace 21 is set
Put immediately below the second water tank 23 and the second water tank 23 is heated, the top of the second water tank 23 is equipped with gas bleeder valve 231；
The PH that PH monitoring adjusting apparatus 3 includes being arranged on 11 madial wall of fermentation tank monitors sensor 31, is arranged on hair
11 inner wall of fermentation tank body and the PH regulating boxs 32 equipped with alkaline conditioner, PH monitoring sensors 31 are used to monitor dirty in fermentation tank 11
The pH value of mud, the opening of PH regulating boxs 32 are equipped with the first control valve 321, and the first control valve 321 and PH monitoring sensors 31 are equal
It is electrically connected with controller 14；
Finished product, which crushes mixing arrangement 4, includes pulverizer 41 and the mixing chamber 43 being placed on on-ground weigher 42, pulverizer 41
Feed inlet 411 is connected with mud mouth 112, and the discharge port 412 of pulverizer 41 is connected with mixing chamber 43, and the top of mixing chamber 43, which is equipped with, matches somebody with somebody
Material mouth 431, mixing chamber 43 is interior to be equipped with the 3rd agitating paddle 432, and the 3rd agitating paddle 432 is vertically arranged.Domestic sludge is transported to hair
In fermentation tank body 11, sludge is stirred by the first agitating paddle 12, sludge can be known in real time by monitoring sensor 31 by PH
PH value, and the first control valve 321 is opened and closed by controller 14, so that the pH value of conditioning of mud, improves the hair of sludge
Ferment effect, the heating to sludge is realized by heat conducting furnace 21, realizes the fermentation and drying of whole sludge, right by pulverizer 41
Sludge carries out pulverization process, and the sludge after crushing is transported to mixing chamber 43, and the setting of on-ground weigher 42 can clearly be known
The gross weight of sludge in mixing chamber 43, according to the weight of sludge, so as to from ingredients mouth 431 be proportionally added into desulfurated plaster with
And lignite, realize the preparation of organic nutrient soil.
The lower section of second water tank 23 is equipped with supporting rack 26, and heat conducting furnace 21 is located in supporting rack 26, and the second water tank 23 is located at first
Connected between the upper end of the top of water tank 22, the upper end of the second water tank 23 and the first water tank 22 by the first pipeline 27, the second water
The lower end of case 23 is connected with the lower end of the first water tank 22 by second pipe 28, and suction pump 232 is provided with the second water tank 23, is taken out
Water pump 232 connects the first water tank 22 by second pipe 28, and suction pump 232 is electrically connected with controller 14.By the first pipeline 27,
Second pipe 28 and suction pump 232 realize the circulation loop between the first water tank 22 and the second water tank 23, and heat conducting furnace 21 is set
The second water tank 23 is added in the underface of the second water tank 23, and by using the biogas that anaerobic sludge digestion reaction produces
Heat, can play and rationally utilize resource and reduce since it is desired that storing the increased equipment cost of a large amount of biogas.By the second water tank 23
The top of the first water tank 22 is arranged on, adds hot medium because in gravity automatic stream heating chamber 221 in the first water tank 22, leads to
The speed of drawing water of control suction pump 232 is crossed, realizes the water source flowing velocity between the first water tank 22 and the second water tank 23, changes heat
Transmission efficiency.
Fermentation tank 11 is equipped with heavy metal regulating box 113, and heavy metal regulating box 113 is located at the top of fermentation tank 11,
Heavy metal regulating box 113 is built-in calcium oxide powder, and the opening of heavy metal regulating box 113 is equipped with the second control valve 114, the second control
Valve 114 processed is electrically connected with controller 14.According to the actual content of beary metal of sludge, the second control can be opened by controller 14
Valve 114 adds calcium oxide into fermentation tank 11, and heavy metal passivation is carried out to sludge, reduces the sludge subsequently used to environment
Harm, relatively good realizes the effect that calcium oxide is added from trend fermentation tank 11, while passes through the second control valve 114
The addition for adding calcium oxide can preferably be controlled.
Heavy metal regulating box 113 is in cone shape, and is made of transparent material, and the top of heavy metal regulating box 113 is equipped with lid
Plate 115, cover board 115 are equipped with first installed with heavy metal regulating box 113 along 1151 and under first along 1151 outsides
Second under along 1152.Meeting water due to calcium oxide can react, cover board 115 by under first along 1151 realize with again
Connection between the top of metal regulating box 113, can prevent rainy day from having part water droplet can be from the under second along 1152 setting
Entered under one along 1151 fine crack in heavy metal regulating box 113, play the effect of sealing heavy metal regulating box 113.
Mixed bacteria storage box 116 is additionally provided with fermentation tank 11, mixed bacteria storage box 116 is located at fermentation tank 11
Top, and the side of mud inlet 111 is located remotely from, the opening of mixed bacteria storage box 116 is equipped with third control valve 117, the
Three control valves 117 are electrically connected with controller 14.Requirement to microbial inoculum is reacted according to anaerobic sludge digestion, it is possible to achieve put in proportion
Enter the strain of needs, it is convenient in follow-up whole process, third control valve 117 is opened and closed to fermentation tank by controller 14
Quantitative strain is added in body 11, convenient to operate, dosage is accurate.
Sludge between feed inlet 411 and mud mouth 112 is transmitted by the first conveyer belt 5, pulverizer 41 and mixing chamber 43
Between sludge transmitted by the second conveyer belt 6.The setting of first conveyer belt 5 and the second conveyer belt 6 so that sludge fermentation,
During crushing and being mixed and made into organic nutrient soil, it is possible to achieve the full automatic transport of sludge.
Heat conducting furnace 21 is equipped with the flow control valve 211 for being used for controlling biogas flow velocity, and flow control is electrically connected with controller 14
Connect.In whole heating process, at the diverse location that is fed back to according to the first temperature inductor 24 with second temperature inductor 25
Sludge temperature, not only can pass through controller 14 control suction pump 232 extraction speed change 11 received heat of fermentation tank
Transmit, so as to change heating effect of the heat conducting furnace 21 to the second water tank 23, second can also be changed by varying the flow velocity of biogas
The temperature of medium is so as to changing sludge temperature in fermentation tank 11 in water tank 23 so that adjusting enhanced convenience to temperature with
Diversity.
Mud inlet 111 is coniform hatch frame, and is connected with not shown in hinged sealing plate figure.Set it is coniform into
Mud mouth 111 more easily can transport sludge to fermentation tank 11.
11 inner wall of fermentation tank scribbles wear-resistant paint, and wear-resistant paint is by the organosilicon modified polyester tree that matches in parts by weight
10-12 parts of fat, 15-20 parts of zinc borate phenol-formaldehyde resin modified, 6-8 parts of graphite powder, 15-20 parts of solvent, multifunctional assistant 10-12
1-2 parts of part, 8-10 parts of fire retardant, thickener compositions；And completed according to the following steps：
The first step：10-12 parts of silicone modified polyester resin is mixed for 15-20 parts with solvent first, controls temperature
At 50-55 DEG C, mixing speed 300-400r/min is set, mixing time 5-6h, is then placed in zinc borate phenol-formaldehyde resin modified
15-20 parts are continued to stir, mixing time 1-2h；
Second step：1-2 parts of thickener is added, sets mixing speed as 500-550r/min, mixing time 3-4h, stirring
10-12 parts of multifunctional assistant is added after to viscous liquid to continue to stir 20-30min；
3rd step：Then add 6-8 parts of graphite powder to stir evenly, mixing speed 500-600r/min, mixing time
30-40min, temperature are maintained at 50-55 DEG C；
4th step：8-10 parts of stirring 80-120min of fire retardant are eventually adding, mixing speed 300-350r/min, obtains
To wear-resistant paint.
By covering wear-resistant paint in 11 inner wall of fermentation tank, reduce between 11 inner wall of fermentation tank long-time and sludge
The caused abrasion of friction, can comparatively extend the service life of whole fermentation tank 11.
Application method：
The first step, transport sludge into the fermentation tank 11；
Second step, addition and the calcium oxide powder of sludge weight ratio 0.4~1% in the fermentation tank 11, pass through stirring
Heavy metal passivation is carried out to sludge；
3rd step, add conditioner, the percentage by weight of the sludge and the conditioner in the fermentation tank 11
For：10000：3~5；
4th step, the quality hundred that composite bacteria, the sludge and the composite bacteria are added in the fermentation tank 11
Divide than being 1000：3, the composite bacteria by cell quantity percentage be 25%~45% cellulose decomposing bacteria, 18%~
31% sulfate reducing bacteria, 9%~15% proteolyticbacteria, 8%~15% fat decomposing bacteria, 3%~7% production
Hydrogen produces acetic acid bacteria, remaining is methane phase Gu bacterium；
5th step, using the heat conducting furnace 21 heat the sludge in the fermentation tank 11, and to the fermentation
Oxygen is passed through in tank body 11, temperature is maintained at 60~70 DEG C in fermentation tank 11 described in whole process, 1~2h of duration；
6th step, remove oxygen to being passed through nitrogen in the fermentation tank 11, and temperature in the fermentation tank 11 is protected
Hold at 30~35 DEG C, ferment to the sludge in the fermentation tank 11,8~10h of whole process duration, is entirely sending out
Ferment process monitors sludge PH on time, when PH drastically glides, using calcium oxide conditioning of mud PH, is producing the biogas stage to material
Sludge conditioning is carried out, material pH value is maintained between 6.8-7.2；
The biogas that 7th step, burning fermentation produce heats the fermentation tank 11 as heat source；Make the fermentation tank
Temperature in 11 is maintained at 100~105 DEG C, 3~5h of whole process duration；
8th step, by after desiccation and moisture content be 35~45% sludge crushed using the pulverizer 41, in powder
Desulfurated plaster, lignite are added in dewatered sludge after broken, and is stirred, mixing time is 30~40min, is mixed organic
Nutrition Soil, and dewatered sludge, desulfurated plaster and lignite are by weight percentage：65~75%: 10~20%: 5~15%.This
Specific embodiment is only explanation of the invention, it is not limitation of the present invention, and those skilled in the art are reading
The modification of no creative contribution can be made after this specification to the present embodiment as needed, but as long as in the right of the present invention
All protected in claimed range be subject to Patent Law.
Claims (9)
1. a kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system, it is characterised in that：By sludge aerobic digestion device
(1), temperature monitoring regulating device (2), PH monitoring adjusting apparatus (3) and finished product crush mixing arrangement (4) composition, wherein：
Fermentation tank (11) that the sludge aerobic digestion device (1) includes laterally setting, in the fermentation tank (11)
The first agitating paddle (12), the second agitating paddle (13) and controller (14) in the fermentation tank (11), the hair
The top of fermentation tank body (11) is equipped with mud inlet (111), and the bottom of the fermentation tank (11) is equipped with mud mouth (112), and described
One agitating paddle (12) is set along the fermentation tank (11) axis, and second agitating paddle (13) is parallel to first agitating paddle
(12) and it is located at the fermentation tank (11) bottom, second agitating paddle (13) is spiral shape, and drives the fermentation tank
(11) sludge of the interior bottom away from the mud mouth (112) place is moved to the mud mouth (112) direction, drives described first to stir
Mix the first motor (15) of paddle (12) rotation, drive the second motor (16) that second agitating paddle (13) rotates respectively with it is described
Controller (14) is electrically connected, and fermentation tank (11) inner wall scribbles wear-resistant paint, and the wear-resistant paint by matching somebody with somebody in parts by weight
6-8 parts of 15-20 parts of 10-12 parts of silicone modified polyester resin, zinc borate phenol-formaldehyde resin modified, graphite powder, the solvent 15-20 of ratio
1-2 parts of part, 10-12 parts of multifunctional assistant, 8-10 parts of fire retardant, thickener compositions；
The temperature monitoring regulating device (2) includes heat conducting furnace (21), the first water tank (22), the second water tank (23), is arranged on institute
State the first temperature inductor (24) on the first agitating paddle (12) and be arranged on multiple on the fermentation tank (11) inner wall
Second temperature inductor (25), first water tank (22) be wrapped in the fermentation tank (11) outer wall and with the fermentation tank
(11) heating chamber (221) is formed between outer wall, is formed and is recycled back between second water tank (23) and first water tank (22)
Road, the heat conducting furnace (21) heat second water tank (23) by biogas, are equipped with the top of second water tank (23)
Gas bleeder valve (231)；
The PH monitoring adjusting apparatus (3) includes PH monitoring sensors (31), the PH regulating boxs (32) equipped with alkaline conditioner, institute
The opening for stating PH regulating boxs (32) is equipped with the first control valve (321), and first control valve (321) senses with PH monitorings
Device (31) is electrically connected with the controller (14)；
The finished product, which crushes mixing arrangement (4), includes pulverizer (41) and the mixing chamber (43) being placed on on-ground weigher (42), institute
The feed inlet (411) for stating pulverizer (41) is connected with the mud mouth (112), the discharge port (412) of the pulverizer (41) with
Mixing chamber (43) connection, mixing chamber (43) top are equipped with ingredients mouth (431), the 3rd are equipped with the mixing chamber (43)
Agitating paddle (432), the 3rd agitating paddle (432) are vertically arranged.
2. a kind of domestic sludge anaerobic reaction according to claim 1 cultivates organic nutrient soil system, it is characterised in that：Institute
To state and supporting rack (26) is equipped with below the second water tank (23), the heat conducting furnace (21) is located in support frame as described above (26), and described second
Water tank (23) is located at the top of first water tank (22), the upper end of second water tank (23) and first water tank (22)
Connected between upper end by the first pipeline (27), the lower end of second water tank (23) and the lower end of first water tank (22) lead to
Second pipe (28) connection is crossed, is provided with suction pump (232) in second water tank (23), the suction pump (232) passes through institute
State second pipe (28) and connect first water tank (22), the suction pump (232) is electrically connected with the controller (14).
3. a kind of domestic sludge anaerobic reaction according to claim 2 cultivates organic nutrient soil system, it is characterised in that：Institute
State fermentation tank (11) and be equipped with heavy metal regulating box (113), the heavy metal regulating box (113) is located at the fermentation tank
(11) top, the heavy metal regulating box (113) is built-in calcium oxide powder, the opening of the heavy metal regulating box (113)
Equipped with the second control valve (114), second control valve (114) is electrically connected with the controller (14).
4. a kind of domestic sludge anaerobic reaction according to claim 3 cultivates organic nutrient soil system, it is characterised in that：Institute
It is in cone shape to state heavy metal regulating box (113), and is made of transparent material, is equipped with the top of the heavy metal regulating box (113)
Cover board (115), the cover board (115) are equipped with and the first lower edge (1151) of the heavy metal regulating box (113) installation, Yi Jiwei
The second lower edge (1152) on the outside of first lower edge (1151).
5. a kind of domestic sludge anaerobic reaction according to claim 4 cultivates organic nutrient soil system, it is characterised in that：Institute
State and mixed bacteria storage box (116) is additionally provided with fermentation tank (11), the mixed bacteria storage box (116) is positioned at described
The top of fermentation tank (11), and the side of the mud inlet (111) is located remotely from, the mixed bacteria storage box (116)
Opening is equipped with third control valve (117), and the third control valve (117) is electrically connected with the controller (14).
6. a kind of domestic sludge anaerobic reaction according to claim 5 cultivates organic nutrient soil system, it is characterised in that：Institute
The sludge stated between feed inlet (411) and the mud mouth (112) is transmitted by the first conveyer belt (5), the pulverizer (41)
Sludge between the mixing chamber (43) is transmitted by the second conveyer belt (6).
7. a kind of domestic sludge anaerobic reaction according to claim 6 cultivates organic nutrient soil system, it is characterised in that：Institute
State heat conducting furnace (21) and be equipped with the flow control valve (211) for being used for controlling biogas flow velocity, the flow control and the controller
(14) it is electrically connected.
8. a kind of domestic sludge anaerobic reaction according to claim 7 cultivates organic nutrient soil system, it is characterised in that：Institute
It is coniform hatch frame to state mud inlet (111), and is connected with hinged sealing plate.
9. the dirt of organic nutrient soil system is cultivated using a kind of domestic sludge anaerobic reaction described in claim 1-8 any one
Mud processing method, it is characterised in that：Comprise the following steps：
The first step, transport sludge into the fermentation tank (11)；
Second step, addition and the calcium oxide powder of sludge weight ratio 0.4~1% in the fermentation tank (11), pass through stirring pair
Sludge carries out heavy metal passivation；
3rd step, add conditioner in the fermentation tank (11), and the percentage by weight of the sludge and the conditioner is：
10000：3~5；
4th step, the quality percentage that composite bacteria, the sludge and the composite bacteria are added in the fermentation tank (11)
Than for 1000：3, the composite bacteria by cell quantity percentage be 25%~45% cellulose decomposing bacteria, 18%~
31% sulfate reducing bacteria, 9%~15% proteolyticbacteria, 8%~15% fat decomposing bacteria, 3%~7% production
Hydrogen produces acetic acid bacteria, remaining is methane phase Gu bacterium；
5th step, using the heat conducting furnace (21) heat the sludge in the fermentation tank (11), and to the fermentation
Oxygen is passed through in tank body (11), fermentation tank (11) interior temperature described in whole process is maintained at 60~70 DEG C, the duration 1~
2h；
6th step, remove oxygen to being passed through nitrogen in the fermentation tank (11), and the interior temperature of the fermentation tank (11) is protected
Hold at 30~35 DEG C, ferment to the sludge in the fermentation tank (11), 8~10h of whole process duration, whole
Fermentation process monitors sludge PH on time, when PH drastically glides, using calcium oxide conditioning of mud PH, is producing the biogas stage to thing
Material carries out sludge conditioning, material pH value is maintained between 6.8-7.2；
The biogas that 7th step, burning fermentation produce heats the fermentation tank (11) as heat source；Make the fermentation tank
(11) temperature in is maintained at 100~105 DEG C, 3~5h of whole process duration；
8th step, by after desiccation and moisture content be 35~45% sludge crushed using the pulverizer (41), crushing
Desulfurated plaster, lignite are added in dewatered sludge afterwards, and is stirred, mixing time is 30~40min, is mixed and made into organic battalion
Soil is supported, and dewatered sludge, desulfurated plaster and lignite are by weight percentage：65~75%: 10~20%: 5~15%.
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| EP4108640A1 (en) * | 2021-06-22 | 2022-12-28 | IM-aces BV | A method to treat liquid manure |
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