CN111675463A - Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method - Google Patents
Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method Download PDFInfo
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- CN111675463A CN111675463A CN202010449932.XA CN202010449932A CN111675463A CN 111675463 A CN111675463 A CN 111675463A CN 202010449932 A CN202010449932 A CN 202010449932A CN 111675463 A CN111675463 A CN 111675463A
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- anaerobic digestion
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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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- 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
The invention belongs to the technical field of anaerobic digestion, and particularly discloses a kitchen waste livestock and poultry manure and sludge synergistic anaerobic digestion system and a method, wherein the system comprises a horizontal anaerobic digestion tank, a methane purification device, a solid-liquid separation device, a digestive juice treatment device, a hydrolysis desanding chamber, a soil crushing device and a mixing tank, wherein the solid-liquid separation device is connected with the digestive juice treatment device through a connecting pipe, the solid-liquid separation device is connected with a drying device through a conveying device, and the drying device is connected with the garbage crushing device through the conveying device; garbage crushing device, the desanding chamber of hydrolysising and earth breaker all are connected with the blending tank through conveyor, are provided with on the blending tank and arrange the material pipe, arrange and are provided with automatically controlled valve on the material pipe, arrange the material pipe and be connected with spiral pusher, spiral pusher passes through the conveyer pipe and is connected with horizontal anaerobic digestion jar.
Description
Technical Field
The invention relates to a kitchen waste livestock and poultry manure and sludge cooperative anaerobic digestion system and method, and belongs to the technical field of anaerobic digestion.
Background
For kitchen waste, municipal soil and livestock and poultry manure, people always treat the kitchen waste, the municipal soil and the livestock and poultry manure in an anaerobic digestion treatment mode and recover generated biogas to realize resource recycling, and the three are treated separately in the prior art, so that the treatment steps are multiple, a large amount of manpower and resources are wasted, the treatment efficiency is reduced, and the benefits brought by anaerobic digestion treatment are relatively reduced; therefore, a system and a method for anaerobic digestion of kitchen garbage, livestock manure and sludge are provided to solve the problem.
Disclosure of Invention
The invention aims to provide a system and a method for cooperative anaerobic digestion of kitchen waste, livestock and poultry manure and sludge, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a kitchen waste livestock and poultry manure and sludge synergistic anaerobic digestion system comprises a horizontal anaerobic digestion tank, a biogas purification device, a solid-liquid separation device, a digestion liquid treatment device, a hydrolysis desanding chamber, an earth crushing device and a mixing tank, wherein the solid-liquid separation device is connected with the digestion liquid treatment device through a connecting pipe, the solid-liquid separation device is connected with a drying device through a conveying device, and the drying device is connected with a garbage crushing device through the conveying device; garbage crushing device, the desanding chamber of hydrolysising and earth breaker all are connected with the blending tank through conveyor, are provided with on the blending tank and arrange the material pipe, arrange and be provided with first automatically controlled valve on the material pipe, arrange the material pipe and be connected with spiral pusher, spiral pusher passes through the conveyer pipe and is connected with horizontal anaerobic digestion jar.
Preferably, the outer side of the anaerobic digestion tank is covered with a heat preservation chamber, the top of the anaerobic digestion tank is provided with a feed inlet, the feed inlet is connected with a conveying pipe, and the bottom of the digestion tank is provided with a discharge outlet; the bottom of the digestion tank is provided with an exhaust port, and the exhaust port is connected with a methane purification device through a conduit; the top of the anaerobic digestion tank is provided with a medicine inlet which is connected with the medicine container through a medicine inlet pipe; the medicine inlet pipe is provided with a second electric control valve.
Preferably, the indoor first temperature sensor that is provided with of heat preservation, be provided with second temperature sensor and PH meter in the anaerobic digestion jar, be provided with the PLC controller on the lateral wall of anaerobic digestion jar, the PLC controller establishes information transmission with first temperature sensor, second temperature sensor and PH meter and is connected.
Preferably, the temperature in the heat-preservation chamber 13 is controlled between 50 and 60 ℃; the side walls of the horizontal anaerobic digestion tank 1 and the heat preservation chamber 13 are both made of transparent materials.
The invention also provides a method for cooperative anaerobic digestion of kitchen garbage, livestock manure and sludge, which comprises the following steps: s1: extracting undiluted excrement from a livestock and poultry house, placing the undiluted excrement into a hydrolysis desanding chamber, simultaneously placing extracted soil into a soil crushing device, and placing kitchen garbage into a solid-liquid separation device; s2: adjusting the temperature in the water release sand chamber to 50-60 ℃ in S1, placing the liquid separated by the solid-liquid separation device in a digestive juice treatment device, placing the separated garbage in a garbage crushing device, and crushing the garbage; s3: conveying the crushed soil in the S1, the sand-removed excrement and the crushed garbage in the S2 to a mixing tank through a conveying device for mixing to obtain a mixture; s4: opening a first electric control valve to convey the mixture in the S3 into a spiral pushing device through a discharge pipe, and conveying the mixture into a horizontal anaerobic digestion tank through the spiral pushing device; s5: opening a second electric control valve to inject the medicament in the medicament container into the horizontal anaerobic digestion tank; s6: and conveying the biogas generated in the horizontal anaerobic digestion tank into a biogas purification device through a conduit.
Compared with the prior art, the invention has the beneficial effects that:
according to the kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method, kitchen waste and soil are crushed, sand is removed from the livestock manure, and the crushed soil, the garbage and the sand-removed manure are stirred by the mixing tank to be fully mixed, so that municipal soil, the kitchen waste and the livestock manure are subjected to simultaneous and synchronous anaerobic digestion treatment, the efficiency of anaerobic digestion treatment of the soil, the garbage and the manure is improved, time and labor are saved, and a large amount of manpower and resources are saved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of the connection structure of the horizontal anaerobic digestion tank, the mixing tank and the screw propulsion device.
In the figure: 1. a horizontal anaerobic digester; 101. a feed inlet; 102. a discharge outlet; 103. an exhaust port; 104. a medicine inlet; 2. a biogas purification device; 3. a solid-liquid separation device; 4. a digestive juice treatment device; 5. hydrolyzing and discharging sand out of the chamber; 6. a soil crushing device; 7. a mixing tank; 8. a drying device; 9. a garbage crushing device; 10. a discharge pipe; 11. a first electrically controlled valve; 12. a screw pushing device; 13. a heat preservation chamber; 14. a medicament container.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: a kitchen waste livestock and poultry manure and sludge cooperative anaerobic digestion system comprises a horizontal anaerobic digestion tank 1, a biogas purification device 2, a solid-liquid separation device 3, a digestion liquid treatment device 4, a hydrolysis desanding chamber 5, an earth crushing device 6 and a mixing tank 7, wherein the solid-liquid separation device 3 is connected with the digestion liquid treatment device 4 through a connecting pipe, the solid-liquid separation device 3 is connected with a drying device 8 through a conveying device, and the drying device 8 is connected with a garbage crushing device 9 through a conveying device; garbage crushing device 9, the desanding chamber of hydrolysising 5 and earth breaker 6 all are connected with blending tank 7 through conveyor, are provided with on the blending tank 7 to arrange material pipe 10, arrange and are provided with first electrically controlled valve 11 on the material pipe 10, arrange material pipe 10 and be connected with spiral pusher 12, spiral pusher 12 passes through the conveyer pipe and is connected with horizontal anaerobic digestion jar 1.
Further, a heat preservation chamber 13 is coated outside the horizontal anaerobic digestion tank 1, a feed inlet 101 is formed in the top of the horizontal anaerobic digestion tank 1, a conveying pipe is connected to the feed inlet 101, and a discharge outlet 102 is formed in the bottom of the horizontal anaerobic digestion tank 1; the bottom of the horizontal anaerobic digestion tank 1 is provided with an exhaust port 103, and the exhaust port 103 is connected with the biogas purification device 2 through a conduit; the top of the horizontal anaerobic digestion tank 1 is provided with a medicine inlet 104, the medicine inlet 104 is connected with the medicine container 14 through a medicine inlet pipe, and the medicine inlet pipe is provided with a second electric control valve.
Further, be provided with first temperature sensor in the heat preservation room 13, be provided with second temperature sensor and PH meter in the horizontal anaerobic digestion jar 1, be provided with the PLC controller on the lateral wall of horizontal anaerobic digestion jar 1, the PLC controller establishes information transmission with first temperature sensor, second temperature sensor and PH meter and is connected.
Further, the temperature in the heat preservation chamber 13 is controlled between 50 ℃ and 60 ℃; the side walls of the horizontal anaerobic digestion tank 1 and the heat preservation chamber 13 are both made of transparent materials.
Further, the drying device 8 is a solar drying bed.
Further, a stirring shaft is arranged in the horizontal anaerobic digestion tank 8 and used for accelerating the anaerobic reaction of the mixed materials.
The invention also provides a method for cooperative anaerobic digestion of kitchen waste livestock manure and sludge, which comprises the following steps of S1: undiluted excrement is extracted from the livestock and poultry house and is placed in a hydrolysis desanding chamber 5, meanwhile, extracted soil is placed in a soil crushing device 6, and the garbage in the kitchen is placed in a solid-liquid separation device 3; s2: adjusting the temperature of the water-removing sand chamber 5 in S1 to 50-60 ℃, placing the liquid separated by the solid-liquid separation device 3 in the digestive juice treatment device 4, placing the separated garbage in the garbage crushing device 9, and crushing the garbage; s3: conveying the crushed soil in the step S1, the sand-removed excrement and the crushed garbage in the step S2 to a mixing tank 7 through a conveying device for mixing to obtain a mixture; s4: opening a first electrically controlled valve 11 to convey the mixture in the S3 into a spiral pushing device 12 through a discharge pipe 10, and conveying the mixture into the horizontal anaerobic digestion tank 1 through the spiral pushing device 12; s5: opening a second electric control valve to inject the medicament in the medicament container 14 into the horizontal anaerobic digestion tank 1; s6: and conveying the biogas generated in the horizontal anaerobic digestion tank 1 to a biogas purification device 2 through a conduit.
The working principle is as follows: the invention provides a kitchen waste livestock and poultry manure and sludge synergistic anaerobic digestion system and a method, when in use, firstly putting extracted livestock and poultry manure into a hydrolysis desanding chamber 5 for desanding, then putting municipal soil into a soil crushing device 6 for crushing, finally putting kitchen waste into a solid-liquid separation device 3, inputting separated liquid into a digestive juice treatment device 4, and treating waste water with high ammonia nitrogen content into recyclable water resource; conveying the separated kitchen waste to a drying device 8 for drying, putting the dried kitchen waste into a waste crushing device 9 for crushing, conveying the crushed kitchen waste, soil and sand-removed excrement into a mixing tank 7, fully mixing to obtain a mixture, then opening a first electric control valve 11 to convey the mixture into a horizontal anaerobic digestion tank 1, and simultaneously opening a second electric control valve to convey medicines in a medicine container 14 into the horizontal anaerobic digestion tank 1 for anaerobic digestion reaction; the temperature of water in the heat preservation chamber 13 is sensed through the first temperature sensor, and the temperature value of the water is transmitted to the PLC for display, so that the temperature can be conveniently checked by workers, and the temperature in the heat preservation chamber 13 is ensured to be suitable for anaerobic reaction all the time; the temperature in the horizontal anaerobic digestion tank 1 is sensed through the second temperature sensor, and the temperature value is transmitted to the PLC for display, so that a worker can know the reaction condition in the horizontal anaerobic digestion tank 1 in time conveniently; in the anaerobic reaction process, the stirring shaft can be driven by the motor to rotate to accelerate the anaerobic reaction of the mixed materials, and the marsh gas generated in the reaction process is conveyed to the marsh gas purification device 2 through the guide pipe, so that the marsh gas meets the standard requirement of vehicle fuel gas.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a kitchen garbage beasts and birds excrement and urine and mud anaerobic digestion system in coordination which characterized in that: the device comprises a horizontal anaerobic digestion tank (1), a biogas purification device (2), a solid-liquid separation device (3), a digestive juice treatment device (4), a hydrolysis desanding chamber (5), an earth crushing device (6) and a mixing tank (7), wherein the solid-liquid separation device (3) is connected with the digestive juice treatment device (4) through a connecting pipe, the solid-liquid separation device (3) is connected with a drying device (8) through a conveying device, and the drying device (8) is connected with a garbage crushing device (9) through a conveying device; garbage crushing device (9), sand removal room (5) and earth breaker (6) of hydrolysising all are connected with blending tank (7) through conveyor, are provided with on blending tank (7) to arrange material pipe (10), are provided with first automatically controlled valve (11) on arranging material pipe (10), arrange material pipe (10) and are connected with spiral pusher (12), and spiral pusher (12) are connected with horizontal anaerobic digestion jar (1) through the conveyer pipe.
2. The kitchen waste livestock manure and sludge cooperative anaerobic digestion system as claimed in claim 1, wherein: the outer side of the horizontal anaerobic digestion tank (1) is covered with a heat preservation chamber (13), the top of the horizontal anaerobic digestion tank (1) is provided with a feed inlet (101), the feed inlet (101) is connected with a conveying pipe, and the bottom of the horizontal anaerobic digestion tank (1) is provided with a discharge outlet (102); the bottom of the horizontal anaerobic digestion tank (1) is provided with an exhaust port (103), and the exhaust port (103) is connected with the biogas purification device (2) through a conduit; the top of the horizontal anaerobic digestion tank (1) is provided with a medicine inlet (104), the medicine inlet (104) is connected with the medicine container (14) through a medicine inlet pipe, and the medicine inlet pipe is provided with a second electric control valve.
3. The kitchen waste livestock manure and sludge cooperative anaerobic digestion system as claimed in claim 2, characterized in that: be provided with first temperature sensor in heat preservation room (13), be provided with second temperature sensor and PH meter in horizontal anaerobic digestion jar (1), be provided with the PLC controller on the lateral wall of horizontal anaerobic digestion jar (1), the PLC controller establishes information transmission with first temperature sensor, second temperature sensor and PH meter and is connected.
4. The kitchen waste livestock manure and sludge cooperative anaerobic digestion system as claimed in claim 2, characterized in that: the temperature in the heat preservation chamber (13) is controlled between 50 ℃ and 60 ℃; the side walls of the horizontal anaerobic digestion tank (1) and the heat preservation chamber (13) are made of transparent materials.
5. The method for the cooperative anaerobic digestion of kitchen waste livestock manure and sludge as claimed in any one of claims 1 to 4, comprising the steps of, S1: undiluted excrement is extracted from a livestock and poultry house and is placed in a hydrolysis desanding chamber (5), extracted soil is placed in a soil crushing device (6), and garbage in a kitchen is placed in a solid-liquid separation device (3); s2: adjusting the temperature in the water-removing sand chamber (5) in S1 to 50-60 ℃, placing the liquid separated by the solid-liquid separation device (3) in a digestive juice treatment device (4), placing the separated garbage in a garbage crushing device (9), and crushing the garbage; s3: conveying the crushed soil in the S1, the sand-removed excrement and the crushed garbage in the S2 to a mixing tank (7) through a conveying device for mixing to obtain a mixture; s4: opening a first electric control valve (11) to convey the mixture in the S3 into a spiral pushing device (12) through a discharge pipe (10), and conveying the mixture into the horizontal anaerobic digestion tank (1) through the spiral pushing device (12); s5: opening a second electric control valve to inject the medicament in the medicament container (14) into the horizontal anaerobic digestion tank (1); s6: conveying the biogas generated in the horizontal anaerobic digestion tank (1) to a biogas purification device (2) through a conduit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010449932.XA CN111675463A (en) | 2020-05-25 | 2020-05-25 | Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010449932.XA CN111675463A (en) | 2020-05-25 | 2020-05-25 | Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method |
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| CN111675463A true CN111675463A (en) | 2020-09-18 |
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- 2020-05-25 CN CN202010449932.XA patent/CN111675463A/en active Pending
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| CN106747695A (en) * | 2015-12-17 | 2017-05-31 | 厚利农公司 | For the system and method for poultry waste anaerobic digestion |
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