CN111171850A - Rural household garbage coupling pyrolysis device and method - Google Patents

Rural household garbage coupling pyrolysis device and method Download PDF

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Publication number
CN111171850A
CN111171850A CN202010137993.2A CN202010137993A CN111171850A CN 111171850 A CN111171850 A CN 111171850A CN 202010137993 A CN202010137993 A CN 202010137993A CN 111171850 A CN111171850 A CN 111171850A
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oil
solar
gas
reaction furnace
water
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周晶
靳庆华
孔晓健
王开明
杨桂芝
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Shandong Polytechnic College
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Shandong Polytechnic College
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08Thickening liquid suspensions by filtration
    • B01D17/085Thickening liquid suspensions by filtration with membranes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/02Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/70Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00Arrangements for storing heat collected by solar heat collectors
    • F24S60/30Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1003Waste materials
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/133Renewable energy sources, e.g. sunlight

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A rural domestic garbage coupling pyrolysis device comprises a solar pyrolysis reaction furnace, an oil-gas separator, an oil-water filter and a sectional type gas separator. The method comprises the steps that a solar energy collecting tube on a solar pyrolysis reaction furnace collects solar energy; continuously introducing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; cooling the oil-water collecting pipe by the condensing pipe; separating the oil-water mixture in an oil-water filter; and starting the sectional type gas separator, and performing sectional type temperature reduction and pressurization on the collected mixed gas to convert different gases into liquid under corresponding pressures and flow into the receiving hopper. The solar energy is used as a heat source, so that the solar energy-saving solar water heater has the advantages of environmental friendliness, energy conservation, low consumption and the like. Can separate the product of domestic waste pyrolysis so that retrieve and recycle, can degrade the reutilization that rubbish environmental protection, on the one hand can fully develop rubbish, avoid the waste of recycling resource, improve the utilization ratio of rubbish.

Description

Rural household garbage coupling pyrolysis device and method
Technical Field
The invention relates to a garbage coupling pyrolysis device and a method, in particular to a rural domestic garbage coupling pyrolysis device and a method.
Background
In rural areas of China, the treatment method of the household garbage is generally a landfill method, a burning method and a pyrolysis method which is used by a small part of the household garbage. The landfill method is to directly dump domestic garbage into a pit, a ditch or the like in a village and then cover the land with soil. As a treatment mode with the lowest treatment cost, the landfill method causes great pollution to air, soil and water sources, and is easy to cause negative effects on human health. The incineration method is a treatment method for directly incinerating domestic garbage, has certain environmental protection significance compared with a landfill method, but is easy to generate dioxin during incineration and has great air pollution.
The pyrolysis method is the most environment-friendly treatment method in the prior art, and common pyrolysis products of household garbage are bio-oil, combustible gas and solid black carbon. In the existing pyrolysis method, the treatment of the waste pyrolysis product is mainly in a mode of absorption, purification and re-discharge, and the treatment modes of reusable bio-oil, combustible gas and the like are absorbed, so that the loss and waste of the recovery resources are seriously caused.
In addition, the heat required by the pyrolysis method also takes the heat energy converted from electric energy or the heat energy generated by combustion as a main heat source, so that although the pollution is reduced by treating the household garbage, other energy sources mainly comprising electricity are consumed in a large amount, the energy consumption for treating the garbage is increased, and the sustainable development is not facilitated.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides a rural domestic garbage coupling pyrolysis device.
In order to solve the technical problems, the invention adopts the technical scheme that: a rural domestic garbage coupling pyrolysis device comprises a solar pyrolysis reaction furnace, an oil-gas separator, an oil-water filter and a sectional type gas separator;
the solar pyrolysis reaction furnace takes solar energy as a heat source to supply heat to the domestic garbage in the furnace, so that the pyrolysis reaction of the domestic garbage is realized; the solar pyrolysis reaction furnace is provided with a nitrogen inlet and a mixed oil gas outlet; releasing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; an oil-gas conveying pipe is fixed on the mixed oil-gas outlet, and the other end of the oil-gas conveying pipe is communicated with an oil-gas separator; the oil-gas conveying pipe conveys oil-gas mixed steam generated by pyrolysis in the solar pyrolysis reaction furnace to the oil-gas separator for separation;
the oil-gas separator separates bio-oil and water in the oil-gas mixed steam, and the gas of the remaining mixed combustible gas and nitrogen escapes from a gas escape port of the oil-gas separator and enters the sectional gas separator;
the separated biological oil and water fall into an oil-water filter arranged at the lower end of the oil-gas separator under the action of gravity; an oil-water separation filter membrane is arranged in the oil-water filter, and biological oil and water are separated through the oil-water separation filter membrane, so that the biological oil and the water can be respectively recovered;
a sealing valve is arranged between the sectional type gas separator and the oil-gas separator; the sectional type gas separator separates various combustible gases and nitrogen in the mixed gas in a sectional type cooling and pressurizing mode and recovers the combustible gases and the nitrogen respectively.
Furthermore, a plurality of solar energy collecting tubes are uniformly arranged on the surface of the solar pyrolysis reaction furnace; liquid oil is contained in the solar energy collecting tube, the solar energy collecting tube collects solar energy to heat the liquid oil, and the liquid oil flows through the surface of the solar pyrolysis reaction furnace along the arrangement of the solar energy collecting tube, so that the heating of the domestic garbage in the solar pyrolysis reaction furnace chamber is realized.
Furthermore, each solar energy collecting tube is U-shaped and is attached to the top surface, the back surface and the bottom surface of the solar pyrolysis reaction furnace.
Furthermore, a drawable material tray is arranged in the solar pyrolysis reaction furnace; the front side surface of the solar pyrolysis reaction furnace is provided with a furnace door.
Further, a vertical oil-water collecting pipe is arranged inside the oil-gas separator; the oil-water collecting pipe is respectively communicated with the oil-gas conveying pipe, the gas escape port and the oil-water filter; the pipe body of the oil-water collecting pipe is wound with a condensing pipe, and cooling water flows into the condensing pipe from bottom to top.
Further, a receiving hopper is arranged at the lower end of the sectional type gas separator; connect and be provided with the valve between hopper and the sectional type gas separator, and connect and install the sealed tube on the hopper, the gas that is separated is carried away and is retrieved through the sealed tube.
Furthermore, a temperature probe and a pressure probe are arranged in the solar pyrolysis reaction furnace.
A use method of a rural domestic garbage coupling pyrolysis device comprises the following steps:
i, collecting solar energy by a solar energy collecting pipe on a solar pyrolysis reaction furnace to continuously raise the temperature in the furnace; filling domestic garbage into the solar pyrolysis reaction furnace through a furnace door, placing the domestic garbage on a material tray, and closing the furnace door;
II, continuously introducing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; when the temperature in the furnace reaches 100 ℃, a cooling water switch is opened, so that the condensing pipe cools the oil-water collecting pipe; separating the condensed oil-water mixture in an oil-water filter, and respectively recycling;
III, controlling the temperature in the solar pyrolysis reaction furnace by adjusting the flow of the nitrogen gas, so that the temperature is stabilized at 160-190 ℃; during the period, the sectional type gas separator is started, the collected mixed gas is subjected to sectional type cooling and pressurization, different gases are converted into liquid under corresponding pressures and flow into the receiving hopper, a valve between the receiving hopper and the sectional type gas separator is closed, the temperature and the pressure in the receiving hopper are gradually recovered to be normal, the separated gas is pumped out through a sealing pipe and a negative pressure device, and the gas is recycled or discharged after being filtered according to the properties of the gas.
The solar energy is the most green and environment-friendly energy source at present, replaces other heating forms generated by direct heating or electricity in the prior art, and has the advantages of environmental protection, energy conservation, low consumption and the like.
The invention can separate the products of the pyrolysis of the household garbage so as to be convenient for recycling, on one hand, the garbage can be degraded to protect the environment, on the other hand, the secondary utilization of the garbage can be fully developed, the waste of recycling resources is avoided, and the utilization rate of the garbage is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a solar pyrolysis reaction furnace.
FIG. 3 is a schematic structural diagram of an oil-gas separator and an oil-water filter.
1. A solar pyrolysis reaction furnace; 2. an oil-gas separator; 3. an oil-water filter; 4. a staged gas separator; 5. a nitrogen inlet; 6. a mixed oil gas outlet; 7. a gas escape opening; 8. an oil-water separation filter membrane; 9. a solar energy collecting tube; 10. a material tray; 11. an oil-water collecting pipe; 12. an oil gas delivery pipe; 13. a condenser tube; 14. a receiving hopper.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
As shown in figure 1, the rural domestic garbage coupling pyrolysis device comprises a solar pyrolysis reaction furnace 1, an oil-gas separator 2, an oil-water filter 3 and a sectional type gas separator 4;
as shown in fig. 2, the solar pyrolysis reaction furnace uses solar energy as a heat source to supply heat to the domestic garbage in the furnace, so as to realize the pyrolysis reaction of the domestic garbage; a plurality of solar energy collecting tubes 9 are uniformly arranged on the surface of the solar pyrolysis reaction furnace; the solar energy collecting pipe is the same as the solar energy collecting pipe in the prior art and is used for collecting solar energy. Liquid oil is contained in the solar energy collecting tube, the solar energy collecting tube collects solar energy to heat the liquid oil, and the liquid oil flows through the surface of the solar pyrolysis reaction furnace along the arrangement of the solar energy collecting tube, so that the heating of the domestic garbage in the solar pyrolysis reaction furnace chamber is realized. Due to the limit of the boiling point of the liquid oil and the efficiency of converting solar energy into heat energy, the oil temperature can not exceed more than 200 ℃, thereby preventing the pyrolysis temperature from being overhigh and being easy to control.
Each solar energy collecting pipe is U-shaped and is attached to the top surface, the back surface and the bottom surface of the solar pyrolysis reaction furnace, so that the pyrolysis reaction furnace is covered in the largest area as possible, and heat loss is reduced.
The solar pyrolysis reaction furnace is internally provided with a drawable material tray 10 which is used for containing domestic garbage to be decomposed, carbon or residues generated after the thermal decomposition can be taken out through the material tray, and the carbon which can be recycled can be collected and reused. The front side surface of the solar pyrolysis reaction furnace is provided with a furnace door which can be a sealing door, thereby preventing odor generated by pyrolysis from escaping.
The solar pyrolysis reaction furnace 1 is provided with a nitrogen inlet 5 and a mixed oil gas outlet 6; releasing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; the nitrogen can provide an oxygen-free environment for the garbage pyrolysis reaction and can prevent the generation of dioxin. The temperature in the furnace can be controlled through the flow rate of the nitrogen, so that the temperature in the furnace is stable. In addition, due to the flowing of the nitrogen, the gas and oil drops generated by pyrolysis are carried away from the mixed oil gas outlet, so that the diffusion of foul smell from the furnace to the air can be reduced.
The solar pyrolysis reaction furnace is internally provided with a temperature probe and a pressure probe. The temperature probe is used for visually monitoring the temperature in the furnace, and the pressure probe can monitor the pressure in the furnace.
An oil-gas conveying pipe 12 is fixed on the mixed oil-gas outlet, and the other end of the oil-gas conveying pipe is communicated with an oil-gas separator 2; the oil-gas conveying pipe conveys oil-gas mixed steam generated by pyrolysis in the solar pyrolysis reaction furnace to the oil-gas separator for separation.
As shown in fig. 3, a vertical oil-water collecting pipe 11 is arranged inside the oil-gas separator; the oil-water collecting pipe is respectively communicated with the oil-gas delivery pipe 12, the gas escape opening 7 and the oil-water filter 3; the pipe body of the oil-water collecting pipe is wound with a condensing pipe 13, and cooling water circulates in the condensing pipe from bottom to top. The temperature of the oil-gas mixture entering the oil-gas separator is high, the temperature is reduced by utilizing the condensation principle, so that water and biological oil in the oil-gas mixture are converted into liquid drops and fall into the oil-water filter along the oil-water collecting pipe, the purpose is to strip the water and the biological oil from the oil-gas mixture, and the remaining mixed gas enters the sectional gas separator for further separation.
The oil-gas separator separates bio-oil and water in the oil-gas mixed steam, and the gas of the remaining mixed combustible gas and nitrogen escapes from a gas escape port 7 of the oil-gas separator and enters the sectional type gas separator 4;
the separated biological oil and water fall into an oil-water filter 3 arranged at the lower end of the oil-gas separator under the action of gravity; the inside of oil water filter is provided with water oil separating filter membrane 8, and water oil separating filter membrane has had very mature technique on the existing market, can realize the separation of biological oil and water through the water oil separating filter membrane to can retrieve respectively.
The sectional type gas separator can be a plurality of gas separators which are connected in series in practical application so as to realize the separation by alternately using the mixers, and prevent the safety problem caused by excessive gas and excessive pressure generated in the pyrolysis process in the whole device.
A sealing valve is arranged between the sectional type gas separator and the oil-gas separator; the sectional type gas separator can separate various combustible gases and nitrogen in the mixed gas in a sectional type cooling and pressurizing mode according to different gases which can be liquefied at corresponding gas pressure and temperature, and the various combustible gases and nitrogen are respectively recovered.
The lower end of the sectional type gas separator is provided with a receiving hopper 14; connect and be provided with the valve between hopper and the sectional type gas separator, and connect and install the sealed tube on the hopper, the gas that is separated is carried away and is retrieved through the sealed tube.
The use method of the rural domestic garbage coupling pyrolysis device comprises the following steps:
i, collecting solar energy by a solar energy collecting pipe on a solar pyrolysis reaction furnace to continuously raise the temperature in the furnace; filling domestic garbage into the solar pyrolysis reaction furnace through a furnace door, placing the domestic garbage on a material tray, and closing the furnace door;
II, continuously introducing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; when the temperature in the furnace reaches 100 ℃, a cooling water switch is opened, so that the condensing pipe cools the oil-water collecting pipe; separating the condensed oil-water mixture in an oil-water filter, and respectively recycling;
III, controlling the temperature in the solar pyrolysis reaction furnace by adjusting the flow of the nitrogen gas, so that the temperature is stabilized at 160-190 ℃; during the period, the sectional type gas separator is started, the collected mixed gas is subjected to sectional type cooling and pressurization, different gases are converted into liquid under corresponding pressures and flow into the receiving hopper, a valve between the receiving hopper and the sectional type gas separator is closed, the temperature and the pressure in the receiving hopper are gradually recovered to be normal, the separated gas is pumped out through a sealing pipe and a negative pressure device, and the gas is recycled or discharged after being filtered according to the properties of the gas.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.

Claims (8)

1. A rural domestic waste coupling pyrolysis device which characterized in that: the device comprises a solar pyrolysis reaction furnace (1), an oil-gas separator (2), an oil-water filter (3) and a sectional type gas separator (4);
the solar pyrolysis reaction furnace takes solar energy as a heat source to supply heat to the domestic garbage in the furnace, so that the pyrolysis reaction of the domestic garbage is realized; the solar pyrolysis reaction furnace (1) is provided with a nitrogen inlet (5) and a mixed oil gas outlet (6); releasing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; an oil-gas conveying pipe (12) is fixed on the mixed oil-gas outlet, and the other end of the oil-gas conveying pipe is communicated with an oil-gas separator (2); the oil-gas conveying pipe conveys oil-gas mixed steam generated by pyrolysis in the solar pyrolysis reaction furnace to the oil-gas separator for separation;
the oil-gas separator separates bio-oil and water in the oil-gas mixed steam, and the gas of the remaining mixed combustible gas and nitrogen escapes from a gas escape port (7) of the oil-gas separator and enters a sectional type gas separator (4);
the separated biological oil and water fall into an oil-water filter (3) arranged at the lower end of the oil-gas separator under the action of gravity; an oil-water separation filter membrane (8) is arranged in the oil-water filter, and biological oil and water are separated through the oil-water separation filter membrane, so that the biological oil and the water can be respectively recovered;
a sealing valve is arranged between the sectional type gas separator and the oil-gas separator; the sectional type gas separator separates various combustible gases and nitrogen in the mixed gas in a sectional type cooling and pressurizing mode and recovers the combustible gases and the nitrogen respectively.
2. The rural domestic waste coupling pyrolysis device of claim 1, characterized in that: a plurality of solar energy collecting tubes (9) are uniformly arranged on the surface of the solar pyrolysis reaction furnace; liquid oil is contained in the solar energy collecting tube, the solar energy collecting tube collects solar energy to heat the liquid oil, and the liquid oil flows through the surface of the solar pyrolysis reaction furnace along the arrangement of the solar energy collecting tube, so that the heating of the domestic garbage in the solar pyrolysis reaction furnace chamber is realized.
3. The rural domestic waste coupling pyrolysis device of claim 2, characterized in that: each solar energy collecting pipe is U-shaped and is attached to the top surface, the back surface and the bottom surface of the solar pyrolysis reaction furnace.
4. The rural domestic waste coupling pyrolysis device of claim 3, characterized in that: a drawable material tray (10) is arranged in the solar pyrolysis reaction furnace; the front side surface of the solar pyrolysis reaction furnace is provided with a furnace door.
5. The rural domestic waste coupling pyrolysis device of claim 4, characterized in that: a vertical oil-water collecting pipe (11) is arranged inside the oil-gas separator; the oil-water collecting pipe is respectively communicated with the oil-gas conveying pipe (12), the gas escape port (7) and the oil-water filter (3); the pipe body of the oil-water collecting pipe is wound with a condensing pipe (13), and cooling water flows through the condensing pipe from bottom to top.
6. The rural domestic waste coupling pyrolysis device of claim 5, characterized in that: the lower end of the sectional type gas separator is provided with a receiving hopper (14); connect and be provided with the valve between hopper and the sectional type gas separator, and connect and install the sealed tube on the hopper, the gas that is separated is carried away and is retrieved through the sealed tube.
7. The rural domestic waste coupling pyrolysis device of claim 6, characterized in that: and a temperature probe and a pressure probe are arranged in the solar pyrolysis reaction furnace.
8. A method for using the rural domestic waste coupling pyrolysis device of claim 7, which is characterized in that: the method comprises the following steps:
i, collecting solar energy by a solar energy collecting pipe on a solar pyrolysis reaction furnace to continuously raise the temperature in the furnace; filling domestic garbage into the solar pyrolysis reaction furnace through a furnace door, placing the domestic garbage on a material tray, and closing the furnace door;
II, continuously introducing nitrogen into the solar pyrolysis reaction furnace through a nitrogen inlet; when the temperature in the furnace reaches 100 ℃, a cooling water switch is opened, so that the condensing pipe cools the oil-water collecting pipe; separating the condensed oil-water mixture in an oil-water filter, and respectively recycling;
III, controlling the temperature in the solar pyrolysis reaction furnace by adjusting the flow of the nitrogen gas, so that the temperature is stabilized at 160-190 ℃; during the period, the sectional type gas separator is started, the collected mixed gas is subjected to sectional type cooling and pressurization, different gases are converted into liquid under corresponding pressures and flow into the receiving hopper, a valve between the receiving hopper and the sectional type gas separator is closed, the temperature and the pressure in the receiving hopper are gradually recovered to be normal, the separated gas is pumped out through a sealing pipe and a negative pressure device, and the gas is recycled or discharged after being filtered according to the properties of the gas.
CN202010137993.2A 2020-03-03 2020-03-03 Rural household garbage coupling pyrolysis device and method Pending CN111171850A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113621394A (en) * 2021-08-13 2021-11-09 太原理工大学 Device and method for coal pyrolysis by using solar energy

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