CN111944546A - Movable container system for treating organic solid waste - Google Patents

Movable container system for treating organic solid waste Download PDF

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Publication number
CN111944546A
CN111944546A CN202010619904.8A CN202010619904A CN111944546A CN 111944546 A CN111944546 A CN 111944546A CN 202010619904 A CN202010619904 A CN 202010619904A CN 111944546 A CN111944546 A CN 111944546A
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thermal cracking
crude oil
organic solid
solid waste
recited
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CN111944546B (en
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胡进
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Greenlina Switzerland
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Greenlina Switzerland
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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
    • 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
    • C10B53/07Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
    • 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
    • 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
    • C10G1/10Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • 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
    • C10G53/00Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • 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
    • Y02P20/141Feedstock
    • Y02P20/143Feedstock the feedstock being recycled material, e.g. plastics

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a movable container system for treating organic solid waste, which comprises a thermal cracking system (1) borne by a thermal cracking container (45), or a thermal cracking system (1) borne by the thermal cracking container (45) and a crude oil refining system (46) borne by a refining container (60) matched with the thermal cracking system (1); the organic solid waste is put into a thermal cracking reaction kettle (2) in a thermal cracking system (1) for thermal cracking, crude oil is obtained after dechlorination, gas-water separation and condensation of a thermal cracking product, the crude oil is sent into a crude oil rectifying kettle (47) for rectification, and diesel oil is obtained after gas-water separation, condensation and filtration of a rectified product and sent into a primary diesel oil storage tank (57) for storage. The movable container system integrates the thermal cracking system and the refining container into the corresponding vehicle-mounted 20-ruler or 40-ruler container respectively, and can treat organic solid waste to obtain primary diesel oil.

Description

Movable container system for treating organic solid waste
Technical Field
The invention belongs to the field of energy and chemical technology, and particularly relates to a movable container system for treating organic solid waste.
Background
Economic growth and changes in the manner of consumption and manufacture are leading to a rapid increase in the production of plastic waste worldwide. Global plastic production has been increasing for over 50 years. Moreover, since plastic is a non-biodegradable material, it remains in the soil and pollutes the environment.
Currently, only 14% of plastic packages are recycled worldwide [ the above data are derived from: https:// www.theguardian.com/substandable-Business/2017/feb/22/plastics-recycling-fish-chemicals-styrofoam-packaging ], about 800 million tons of plastic being discharged into the ocean each year. They are predated or ingested by marine life and birds, seriously affecting their lives. Some plastics can also be combined with industrial chemicals that have polluted the ocean for decades and raised concerns about possible toxins entering the food chain. According to a recent report by the allen macbethur Foundation (Ellen MacArthur Foundation), recycling the remaining 86% of the plastic used for packaging and packaging products at one time can generate revenue in the range of 800 to 1200 billions dollars [ the data is derived from: https:// www.ellenmacarthurfoundation.org/publications/the-new-plastics-environmental-rethinking-the-future-of-plastics ].
Although incineration has been the main waste treatment method so far, the recent increase in the amount and variety of waste has forced policies to shift from simply promoting waste incineration to policies that also promote waste reduction. The amount of waste generated and the amount of waste can be reduced by reusing the waste and recycling it as a resource.
Moreover, the negative environmental impact of emissions from incineration, including atmospheric and soil pollution, is problematic, requiring advanced technologies, particularly to limit the production of dioxins. Currently, 5000 ten thousand tons of common waste (including about 400 thousand tons of waste plastics per year) are produced annually, with about 75% being incinerated. Toxic or harmful emissions associated with incineration are important issues that must be addressed.
The aim of waste-to-energy technology is to treat the potential materials contained in the waste, namely plastics, biomass and rubber tyres, converting them into combustible products, in particular biofuels. As an alternative to incineration technology, thermal cracking technology was developed in the 1970 s, aiming to limit the production of dioxins. Thermal cracking is a simple process, a process that heats organic materials or organics and decomposes them into solids, liquids and gases in an environment with little or no oxygen. The advantage of the thermal cracking process is that it is capable of cracking unsorted and unclean waste plastics/rubbers or other organic solid wastes. In addition, unlike incineration, thermal cracking does not release toxic or harmful emissions to the environment and does not add adverse conditions to further exacerbate an already deteriorating situation over the years.
Comparison of greenhouse gas emissions from thermal cracking processes with other Waste treatment processes [ Sam Haig, et. al Plastic to oil IFM002 final report "Zero Waste Scotland ].]: the emissions associated with the manufacture of other raw materials (excluding waste plastic streams) were 13.0kg CO2. In the case of thermal cracking, this is due to the hydrogen consumed in the process. The on-site emission of 56kg CO from the incineration of the thermally cracked gas, distillation residue and 3% of the resulting diesel product2. The emission associated with all transport elements (product and waste) was 197kg CO2. According to these data, the emission associated with thermal cracking was 266kg CO2. The emission savings associated with the production of alternative fossil diesel is 426kg CO2. Overall, the net emission of thermal cracking was-160 kg CO2
The waste plastic raw materials mainly come from waste mixtures of plastic products such as Polyethylene (PE), polypropylene (PP), Polystyrene (PS), polyvinyl chloride (PVC) and the like in daily life, such as agricultural films, food packaging bags, engineering waste plastic products or mixed waste plastics selected from domestic garbage landfill sites and the like; the waste rubber raw material mainly comes from the waste of rubber products such as Natural Rubber (NR), Styrene Butadiene Rubber (SBR), Butadiene Rubber (BR) and the likeMixtures such as waste tires, rubber shoe soles, rubber parts and the like; under normal conditions, the decomposition temperature of Polyethylene (PE) is about 265 ℃, the decomposition temperature of polypropylene (PP) is 350-400 ℃, the decomposition temperature of Polystyrene (PS) is about 300 ℃, the decomposition temperature of polyvinyl chloride (PVC) is 150 ℃, and Natural Rubber (NR) is rapidly decomposed at 270 ℃; the butyl Chloride Rubber (CR) is decomposed at 230-260 ℃; waste plastics are a mixture of various plastics such as PE, PP, PS, PVC, etc., waste rubber is a mixture of various rubbers such as NR, SBR, BR, CR., etc., some plastics (such as PE, PVC) or rubbers (such as CR) and the like can be thermally cracked or depolymerized at a lower temperature, and other plastics (such as PP) or rubbers (such as NR) and the like can be effectively and completely thermally decomposed at a higher temperature; other organic solid wastes are derived from municipal domestic wastes, agricultural and forestry wastes, and partial industrial wastes, mainly including paper, kitchen wastes, biomass, industrial sludge and the like. Other organic solid wastes are mainly composed of C, H, O and other elements, and in addition, N, S and other trace elements are also contained; meanwhile, compared with coal, the carbon content of other organic solid wastes is lower, and the H/C and O/C ratios are quite high, so that the organic solid wastes have higher volatile content, but the calorific value is lower than that of common coal, and the characteristics determine that the other organic solid wastes are more suitable for gasification. At the temperature of 200 ℃ below 120 ℃, other organic solid wastes are heated and dried and volatilize water and organic substances; at the temperature of 300 ℃ and 500 ℃, most organic substances are completely thermally cracked and volatilized into thermal cracking gas, part of the thermal cracking gas can be condensed into bio-oil, and non-condensable combustible gas mainly comprises CO and H2、 C2H2、 C2H4And the like.
The oils obtained by thermal cracking of plastic wastes and rubber products are generally dark brown or black in color and their odor is very unpleasant. The composition of the thermal cracking oil is complex by analysis, as it also contains alkanes, aromatics and alkenes, aldehydes, ketones, carboxylic acids, sulfides and other impurities. Due to the high impurity content, the value of the crude thermal cracked oil is low and its combustion may even affect the life of the heavy oil burners. Therefore, further processing is necessary to improve the quality. The process of refining thermally cracked oil is essential for producing high quality primary diesel type fuels. Primary diesel fuel is used in a variety of applications, such as powering various agricultural equipment, heavy trucks, road construction equipment, marine vessels, diesel generators.
The traditional thermal cracking system or crude oil refining system has large treatment capacity, but needs fixed places, large investment, large equipment and large occupied area, and cannot be moved at will. The waste raw materials to be treated need to be collected, transported, stored and transported to the factory in large quantities to meet the raw material supply in continuous production, and the larger the scale of the factory is, the larger the radius of the raw material collection is, and the higher the raw material collection and transportation cost is. Such conventional thermal cracking systems or crude oil refining systems are obviously not suitable for remote areas, tourist areas, islands, communities, villages, etc.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a movable container system for treating organic solid waste, which comprises a thermal cracking system borne by a thermal cracking container or a thermal cracking system borne by the thermal cracking container and a crude oil refining system borne by a refining container matched with the thermal cracking system, wherein the size of the container is 20 or 40 feet, the container is standard in size, the system is suitable for waste plastics/rubber or other organic solid waste, has a simple structure, is stable in operation and convenient to move, can be towed to the waste resources by a tractor to be scattered and flexibly for carrying out rapid thermal cracking production and refining of the produced crude oil, reduces the collection and transportation cost of raw materials, and simultaneously reduces secondary pollution possibly generated in waste raw material transportation.
The invention aims to solve the problems by the following technical scheme:
a portable container system for processing organic solid waste material, characterized by: the container system comprises a thermal cracking system borne by a thermal cracking container, or a thermal cracking system borne by the thermal cracking container and a crude oil refining system borne by a refining container and matched with the thermal cracking system; the organic solid waste is put into a thermal cracking reaction kettle in a thermal cracking system for thermal cracking, crude oil is obtained after dechlorination, gas-water separation and condensation of a thermal cracking product, the crude oil is sent into a crude oil storage tank for storage, or is sent into the crude oil storage tank firstly and then pumped into a crude oil rectifying kettle in a crude oil refining system, or is directly sent into the crude oil rectifying kettle in the crude oil refining system for rectification, the crude oil in the crude oil rectifying kettle is rectified, and primary diesel oil obtained after gas-water separation, condensation and filtration of the rectified product is sent into a primary diesel oil storage tank for storage.
The thermal cracking system comprises thermal cracking control equipment, thermal cracking safety alarm equipment and thermal cracking operation equipment, wherein the space in the thermal cracking container is divided into two side areas close to the side wall of the container and a channel formed between the two side areas along the length direction of the thermal cracking container, one side area is used for installing the thermal cracking control equipment and the thermal cracking safety alarm equipment, and the other side area and the top of the thermal cracking container are used for installing the thermal cracking operation equipment.
The crude oil refining system comprises refining control equipment, refining safety alarm equipment and refining operation equipment, the space in the refining container is divided into two side areas close to the side wall of the refining container and a channel formed between the two sides along the length direction of the refining container, wherein one side area is used for installing the refining control equipment and the refining safety alarm equipment, and the other side area and the top of the refining container are used for installing the refining operation equipment.
The thermal cracking reaction kettle and the crude oil rectifying kettle are made of ferrite or martensitic stainless steel.
The thermal cracking system include thermal cracking reation kettle, dechlorination jar, gas-water separation jar, forced air cooling box formula condenser and crude oil holding vessel, thermal cracking reation kettle adopts the electromagnetic heating cover heating, the oil absorption trachea way that thermal cracking reation kettle top set up is connected with the import of dechlorination jar through the connecting tube, the export of dechlorination jar is connected through the import of connecting tube with gas-water separation jar, the export of gas-water separation jar is connected with the air inlet of forced air cooling box formula condenser through the air inlet main who corresponds, the play crude oil pipeline of forced air cooling box formula condenser is connected with the crude oil import of crude oil holding vessel.
The thermal cracking reaction kettle is arranged on a thermal cracking reaction kettle base fixedly arranged in the thermal cracking container.
The thermal cracking reaction kettle is provided with a thermal cracking kettle feeding door for feeding and a thermal cracking kettle rear end door for overhauling, the lower semi-circumference doors of the thermal cracking kettle feeding door and the thermal cracking kettle rear end door are fixed, and the upper semi-circumference doors of the thermal cracking kettle feeding door and the thermal cracking kettle rear end door can be opened within a 180-degree range.
The lower semi-circumference door of the rear end door of the thermal cracking kettle is provided with a carbon black and ash residue outlet which can be externally connected with a matched movable powder industrial dust collector.
The thermal cracking reaction kettle is internally provided with a single-shaft cutting type stirring mechanism which comprises a stirring shaft with blades, an explosion-proof motor, a reduction gearbox and a double-row chain wheel coupler, wherein an output shaft of the explosion-proof motor is connected with the reduction gearbox, and an output gear of the reduction gearbox is connected with a driven gear on the stirring shaft through the double-row chain wheel coupler.
Two sections of alternating spiral cutting type blades with the same length are arranged on the stirring shaft.
One blade is twisted by 180 degrees clockwise, and the other blade is twisted by 180 degrees anticlockwise and is arranged on the stirring shaft.
The diameter of the paddle is 700-900 mm.
The paddle is made of high-temperature-resistant stainless steel.
And a stirring shaft of the stirring mechanism is positioned below the lower part of the central axis of the thermal cracking reaction kettle.
And the clearance between the outer edge of the paddle and the bottom of the inner wall of the thermal cracking kettle body of the thermal cracking reaction kettle is 8-10 mm.
The stirring mechanism is provided with a bearing overheating prevention water cooling system which is used for cooling a bearing of the stirring shaft.
The temperature of the water inlet end of the bearing overheating prevention water cooling system is 50-85 ℃, and the temperature of the water outlet end is 2-5 ℃.
The dechlorination tank is made of high-temperature-resistant and corrosion-resistant titanium alloy or ceramic.
When the dechlorination tank adopts the solid dechlorination agent, the dechlorination tank is divided into an upper section, a middle section and a lower section according to the height of the dechlorination tank, the inner part of the dechlorination tank is divided into an upper section, a middle section and a lower section, each section is separated by a high-temperature-resistant corrosion-resistant titanium alloy fine net, and the solid dechlorination agent is buried in each section of the titanium alloy fine net.
The dechlorination tank adopts 10-20wt% NaOH solution as dechlorination agent.
Crude oil refining system include crude oil rectifying still, with the corresponding gas-water separation jar of crude oil rectifying still, air-cooled box formula condensate machine, duplex filter and elementary diesel oil holding vessel, crude oil rectifying still adopts corresponding electromagnetic heating cover heating, the oil absorption trachea way that crude oil rectifying still top set up is connected with gas-water separation jar's import through corresponding connecting tube, gas-water separation jar's export is connected with the air inlet of air-cooled box formula condensate machine through the air inlet manifold that corresponds, the oil outlet pipeline of air-cooled box formula condensate machine is connected with duplex filter's import, duplex filter's export is connected through the oil inlet of pipeline with elementary diesel oil holding vessel.
The crude oil rectifying kettle is arranged on a rectifying kettle base fixedly arranged in the refining container.
The crude oil rectifying kettle is provided with a rectifying kettle front end door capable of feeding and ventilating and a rectifying kettle rear end door capable of overhauling and ventilating, and the circumference doors of the rectifying kettle front end door and the rectifying kettle rear end door can be completely opened.
And a crude oil feeding hole is formed in the lower half circumference of the front end door of the rectifying kettle.
The electromagnetic heating sleeve is controlled by an electromagnetic variable-frequency heating control cabinet, and comprises a heat insulation layer, a semi-circumference electromagnetic induction coil and an outer casing material which are arranged on the outer surface of a kettle body of the thermal cracking reaction kettle and/or the crude oil rectifying kettle, wherein the heat insulation layer is arranged on the outer surface of the kettle body of the thermal cracking reaction kettle and/or the crude oil rectifying kettle, then the semi-circumference electromagnetic induction coil is arranged on the outer surface of the heat insulation layer, and finally the semi-circumference electromagnetic induction coil is rigidly fixed at multiple points by the outer casing material to form the electromagnetic heating sleeve.
The materials in the thermal cracking reaction kettle are gradually heated to 500 +/-50 ℃ from normal temperature.
The heating rate of the thermal cracking reaction kettle is 2-3 ℃/min.
And gradually heating the materials in the crude oil rectifying kettle to 200-350 ℃ from normal temperature.
And gradually heating the materials in the crude oil rectifying kettle to 250-300 ℃ from normal temperature.
And gradually heating the materials in the crude oil rectifying kettle to 290-300 ℃ from normal temperature.
The heating rate of the crude oil rectifying kettle is 1-1.5 ℃/min.
The main oil suction pipeline in the oil suction pipeline is parallel to the kettle body of the thermal cracking reaction kettle or the crude oil rectifying kettle, a plurality of oil pipes vertical to the axis of the kettle body are arranged at the top of the kettle body of the thermal cracking reaction kettle or the crude oil rectifying kettle, one end of each oil pipe is hermetically connected with the inner wall of the top of the thermal cracking reaction kettle or the crude oil rectifying kettle, and the other end of each oil pipe is hermetically connected with the main oil suction pipeline of the oil suction pipeline vertically connected with the oil pipes.
The upper part of the shell of the gas-water separation tank is provided with a medium air inlet of the separation tank, the inner wall of the shell is provided with spiral blades which are downward in spiral, an axial central air outlet pipe which is vertically arranged is arranged in the inner cavity of the shell, the air outlet pipe inlet of the axial central air outlet pipe is positioned at the bottom of the inner cavity of the shell, and the medium air outlet of the axial central air outlet pipe is positioned at the top of the shell of the gas-.
And the tail end of the spiral blade is provided with a liquid separation plate positioned below the inlet of the air outlet pipe.
And a drain valve is arranged at the outlet of the discharge pipe at the bottom of the shell of the gas-water separation tank.
And an automatic drain valve is arranged on the side part of a discharge pipe at the bottom of the shell of the gas-water separation tank.
The shell and the helical blade of the gas-water separation tank are both made of high-temperature resistant stainless steel.
And a centrifugal draught fan is arranged at the inlet side of an air inlet header pipe at the air inlet side of the air cooling box type condenser, or the centrifugal draught fan is arranged on a crude oil outlet pipeline at the oil outlet side of the air cooling box type condenser.
The centrifugal draught fan is made of high-temperature resistant stainless steel.
The air-cooled box type condenser is arranged on a top plate outside the top of the corresponding thermal cracking container or refining container.
The air-cooled box type condenser comprises one or more shell-and-tube condensers and one or more air coolers, wherein the shell-and-tube condensers are dividing wall type heat exchangers which take the wall surfaces of tube bundles enclosed in a shell as heat transfer surfaces; the air cooler is arranged at the top of the air cooling box type condenser.
When the air-cooled box type condenser is used in a thermal cracking system, a crude oil outlet pipeline of the air-cooled box type condenser is connected with a crude oil inlet of a crude oil storage tank; when the air-cooled box type condenser is used for a crude oil refining system, an oil outlet pipeline of the air-cooled box type condenser is connected with an inlet of the duplex filter.
The air-cooled box type condenser is provided with a condenser exhaust pipe for exhausting non-condensable gas in oil gas.
The thermal cracking system and the crude oil refining system are both provided with ventilation systems.
The ventilation system comprises a directional cooling induced fan, a box wall negative pressure radiating fan and a top negative pressure radiating fan, wherein the directional cooling induced fan is arranged at the lower part of the rear end wall of the corresponding container, the box wall negative pressure radiating fan is arranged at the upper side of the directional cooling induced fan, and the top negative pressure radiating fan is arranged at the top plate outside the corresponding container.
The ventilation system comprises a control cabinet bottom air inlet and a control cabinet side air inlet which are arranged on the corresponding control cabinet, when the ventilation system is used, the control cabinet absorbs cold air from the control cabinet bottom air inlet and the control cabinet side air inlet, and heat emitted by the control cabinet during working is discharged into the corresponding container through a direct-exhaust air channel arranged at the top of the control cabinet.
The thermal cracking reaction kettle and the crude oil rectification kettle are cooled by a ventilation system, and the cooling rate is 4-5 ℃/min.
When keeping ventilation system and centrifugal draught fan in the container continuous work, thermal cracking reation kettle's thermal cracking cauldron feed door and thermal cracking cauldron rear end door's last semi-circular door open the cooperation aeration cooling when the cauldron internal residual temperature falls to 200 ℃.
When keeping the ventilation system and the centrifugal draught fan in the container to work continuously, the front end door and the rear end door of the crude oil rectifying kettle are opened to be matched with ventilation and cooling when the residual temperature in the kettle is reduced to 120 ℃.
The duplex filter comprises a first duplex pre-filter and a second duplex fine filter, an oil pump is arranged on a pipeline between the pre-filter and the fine filter, and the oil pump is also arranged on a pipeline behind the fine filter.
The filtering precision of a filter element adopted by the pre-filter is 50-200 mu m.
The filtering precision of a filter element adopted by the fine filter is 5-40 mu m.
And a high-temperature-resistant radar liquid level meter is arranged at the top of the crude oil rectifying kettle.
An electromagnetic variable frequency heating control cabinet for controlling an electromagnetic heating sleeve in thermal cracking operation equipment, a thermal cracking PLC control cabinet for controlling other thermal cracking operation equipment and a thermal cracking safety alarm system for monitoring abnormity of the thermal cracking operation equipment are arranged in the thermal cracking container.
And an electromagnetic variable frequency heating control cabinet for controlling an electromagnetic heating sleeve in refining operation equipment, a refining PLC control cabinet for controlling other refining operation equipment and refining safety alarm equipment for monitoring abnormity of the refining operation equipment are arranged in the refining container.
Compared with the prior art, the invention has the following advantages:
the container system of the invention realizes containerization of waste plastic/rubber or other organic solid waste treatment equipment, and realizes vehicle-mounted movement of the equipment; the system can be transported and installed in any remote area, island, tourist area, village, large ferry or small community in a city to dispose of waste plastics/rubber or other organic solid waste.
The container system of the invention adopts the integration of the thermal cracking of waste plastics/rubber or other organic solid wastes and the thermal cracking oil refining equipment and adopts the universal modular design, so the system is easy to integrate, complete in function, small in volume and small in occupied area.
The container system of the present invention can be transported by truck to any location where waste plastic/rubber or other organic solid waste needs to be disposed of, thus avoiding secondary pollution caused by loading and unloading of waste.
The container system is integrated equipment, avoids the inconvenience of equipment disassembly and assembly, and is simple and convenient to install, environment-friendly and efficient.
The subsystem in the container system adopts a fully closed structure, the thermal cracking and the rectification both adopt electromagnetic heating, no waste gas, waste water and waste residue are discharged during working, and no secondary pollution to the environment is generated.
The container system of the invention can carry out thermal cracking on waste plastics/rubber or other organic solid wastes and refine thermal cracking oil thereof, and main products are primary diesel oil, combustible gas and furnace slag.
The thermal cracking system loaded by the 20-inch standard container can process 1000 kg of waste plastic/rubber or other organic solid wastes each time, and the thermal cracking system loaded by the 40-inch standard container can process 2000 kg of waste plastic/rubber or other organic solid wastes each time; the crude oil refining system loaded by a standard container with 20 feet can refine 1500 liters of thermal cracking oil each time, and the crude oil refining system loaded by a standard container with 40 feet can refine 3000 liters of thermal cracking oil each time; the system is particularly suitable for small scale processing of waste plastics/rubber or other organic solid waste.
The configuration of the thermal cracking system and the crude oil refining system of the invention is not only suitable for two 20-ruler standard containers, but also suitable for two 40-ruler standard containers, and the thermal cracking system and the oil refining system of the two 40-ruler standard containers have larger waste plastic/rubber or other organic solid waste processing capacity.
The container system of the present invention is easy to expand the functionality or processing capacity, in remote areas where there is a shortage of electricity, the system can be connected to a generator set, and the primary diesel and combustible gas produced by the system can be used directly for power generation; if waste throughput is increased, the capacity can be increased by adding series or parallel units.
The container system integrates two processes of thermal cracking and thermal cracking oil refining of waste plastics/rubber or other organic solid wastes into two corresponding systems, so that crude oil serving as a main thermal cracking product is upgraded, and the narrow application range of the crude oil is expanded.
The container system adopts a single-shaft cutting type stirring mechanism suitable for stirring ultrahigh-viscosity materials, provides an external air-cooled box type condenser matched with a thermal cracking system and a crude oil refining system with the size of a container, and provides a ventilation system matched with the thermal cracking system and the crude oil refining system with the size of the container; the arrangement mode that equipment control is arranged on one side in the container, equipment is arranged on the other side in the container, and an operator channel and an escape channel are arranged in the middle is adopted, so that the structure is simple and the arrangement is reasonable.
Drawings
FIG. 1 is a schematic view of the process for treating organic solid waste by the transportable container system of the present invention;
FIG. 2 shows the temperature and quality change of thermal cracking of various plastics;
FIG. 3 is a schematic view of a thermal cracking system of the present invention having a standard container size of 20 feet or 40 feet;
FIG. 4 shows the physical states of the waste plastics or rubber when the temperature rises;
FIG. 5 is a schematic view of the main parts of a single-shaft cutting type stirring mechanism in the present invention;
FIG. 6 is a view showing the layout of the single-shaft cutting type stirring mechanism of the present invention installed in a thermal cracking reactor;
FIG. 7 is a schematic view of an electromagnetic induction coil in a half-circumference electromagnetic heating jacket of the present invention;
FIG. 8 is a schematic view of the structure of the oil suction pipe in the present invention;
FIG. 9 is a schematic view showing the internal structure of a stainless steel gas-water separation tank according to the present invention;
FIG. 10 is a schematic structural view of an air-cooled box type condenser according to the present invention;
FIG. 11 is a schematic view of a ventilation system within a container of the present invention;
FIG. 12 is a schematic diagram of a 20-or 40-foot crude oil refining system of the present invention;
FIG. 13 is a schematic view of a duplex filter according to the present invention.
Wherein: 1-a thermal cracking system; 2-a thermal cracking reaction kettle; 3-a thermal cracking kettle feeding gate; 4-rear end door of thermal cracking kettle; 5, a stirring mechanism; 6, a blade; 7-reduction box; 8-double-row chain wheel coupling; 9-kettle body; 10-outer edge of blade; 11-explosion-proof motor; 12-bearing overheating prevention water cooling system; 13-an electromagnetic heating jacket; 14-electromagnetic variable frequency heating control cabinet; 15-thermal cracking reaction kettle base; 16-oil and gas absorption pipeline; 17-connecting the pipeline; 18-dechlorination tank; 19-steam-water separation tank; 20-inlet of the medium in the separation tank; 21-helical blades; 22-axial central outlet duct; 23-inlet of air outlet pipe; 24-medium outlet; 25-liquid separation plate; 26-automatic drain valve; 27-a blowdown valve; 28-centrifugal draught fan; 29-intake manifold; 30-air cooling box type condenser; 31-shell-and-tube condenser; 32-an air cooler; 33-condenser exhaust; 34-a crude oil outlet pipeline; 35-crude oil storage tank; 36-carbon black and ash discharge; 37-directional cooling induced fan; 38-air inlet at the bottom of the control cabinet; 39-air inlet on side of control cabinet; 40-a direct exhaust duct; 41-box wall negative pressure radiator fan; 42-top negative pressure radiator fan; 43-thermal cracking safety alarm system; 44-thermal cracking PLC control cabinet; 45-thermal cracking container; 46-crude oil refining system; 47-crude oil rectifying still; 48-a front end door of the rectifying still; 49-crude oil feed inlet; 50-a rear end door of the rectifying still; 51-rectifying still base; 52-radar level gauge; 53-oil outlet pipeline; 54-prefilter; 55-an oil pump; 56-fine filter; 57-primary diesel storage tank; 58-refining safety alarm system; 59-refining PLC control cabinet; 60-refining container.
Detailed Description
The invention is further described with reference to the following figures and examples.
A movable container system as shown in figure 1, which is used for processing waste plastics/rubber and other organic solid wastes
As shown in fig. 1, waste plastics/rubber or other organic solid wastes, etc. are first subjected to preliminary treatments such as rough breaking, metal recovery, mechanical dehydration, drying, crushing, etc. and then compacted into small pieces. These pieces are then fed to a thermal cracking reactor 2.
It is well known that plastics decompose into oil and gas when heated to 200 to 400 ℃ in the absence of air (oxygen). The thermal cracking process varies greatly depending entirely on the type of plastic and the thermal cracking temperature. For example, polyvinyl chloride (PVC) initially begins to decompose at around 200 to 250 ℃, producing hydrogen chloride, hydrocarbons (gases and liquids) and solid residues at 350 ℃. While most polymers start to decompose at 250 to 450 ℃, the thermal cracking temperature and quality change of various plastics as shown in FIG. 2 [ Katsuhiro Nakanoh, Shizuo Hayashi, Kiyonori Kida, Water Treatment Using introduction-Heated Pyrolysis, Vol. 47 number 3 FUJI ELECTRIC REVIEW ].
In the present invention, the thermal cracking heating process is started without oxygen or with a very small amount of oxygen, and according to a preferred embodiment, the above-mentioned raw materials are heated to 500 ± 50 ℃. Other organic solid wastes are gradually decomposed into inorganic substances, combustible gases, biochar and liquid compounds (including thermal cracking oil); while the waste plastics/rubber will gradually change into thermal cracking oil, combustible gas and slag.
The pyrolysis gas is one of the main products after the thermal cracking treatment of other organic solid wastes. In the high-temperature thermal cracking reaction kettle 2 at about 500 ℃, gas generated by thermal cracking of most organic components in other organic solid wastes is mainly composed of H2、CO、CH4、CO2、C2H4、C2H6The composition of these six components, the thermal cracking temperature and the chemical composition of the material directly affect the amount of each component. The combustible part in the gas can be stored after being purified and purifiedOr for combustion to generate electricity or for heating. The gas can be safely discharged after being combusted.
The plastics used in the present invention are mixed components obtained, for example, from waste collection. These mixed components include, for example, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymer blends such as ABS and polycondensates. Among the raw materials which can be used are plastics production waste, industrial and commercial plastics packaging waste, and residues, mixed and pure components of the plastics processing industry, where the requirements for the chemical composition of the plastics waste are not high for the applicability of the invention, and also elastomers, industrial waste rubber products or suitably comminuted used tires and other organic solid waste. Due to the wide variety of waste plastics, the waste plastics cannot be completely and thoroughly classified during sorting, and a small amount of PVC exists in the waste plastics. The PVC has poor stability to light and heat. The softening point was 80 ℃ and decomposition started at 130 ℃. Under the condition of not adding heat stabilizer, the polyvinyl chloride begins to decompose at 100 ℃, and the decomposition is faster at the temperature of more than 130 ℃. During thermal cracking, at high temperatures (around 350 ℃), PVC undergoes dehydrochlorination to release hydrogen chloride and form conjugated polyenes. Hydrogen chloride gas is a residual irritant and corrosive gas, which can severely corrode metal equipment. If the thermal decomposition products of polyvinyl chloride in the raw materials are not dechlorinated, the thermal cracking equipment is severely corroded. Dechlorination and neutralization of HCl are achieved by a dechlorination tank 18 which is tightly connected to the thermal cracking reactor 2. The dechlorination tank 18 can be filled with solid alkaline desiccant or 10-20wt% NaOH solution or other alkaline solution to achieve the same effect. The dechlorination tank 18 is made of high temperature resistant and corrosion resistant titanium alloy or ceramic.
The cracked gas after passing through the dechlorination tank 18 enters a stainless steel gas-water separation tank 19. The gas-water separation tank 19 is effective in removing water and some impurities entrained in the feedstock and separating heavy oil from light oil. After separation, the water, impurities and heavy oil are collected. The separated heavy oil and impurities can be mixed with the newly added raw materials and then enter the next thermal cracking to increase the oil yield.
The high temperature resistant centrifugal induced draft fan 28 introduces the thermal cracking light oil gas into the heat exchanger for condensation. The heat exchanger used in the present invention is an air-cooled box type condenser 30. Inside the air-cooled box type condenser 30, a large amount of combustible compounds in the oil gas are condensed into thermal cracking crude oil. The dissolved water in the thermal cracking crude oil can also be condensed therein. Condensed water is collected, stored and recovered, and non-condensable gas can be collected after water sealing for combustion power generation or other purposes; the non-condensable gas can be safely discharged after being combusted.
After completion of the thermal cracking reaction, carbon black and ash remain in the thermal cracking reactor 2. The ash can be used as an additive of building materials. Traditionally, carbon black has been used as a reinforcing agent in tires. Today, the use of carbon black has expanded to include pigmentation, Ultraviolet (UV) stabilizers, and electrical conductors, among others, because of its unique characteristics.
Since thermal cracking oils are complex mixtures of aliphatic, aromatic and polar compounds, the boiling point is approximately between 70 ℃ and 400 ℃. Thus, it is difficult to find a possible application for direct combustion without purification. Therefore, the crude oil obtained from the thermal cracking reaction can be pumped into a crude oil rectifying kettle 47 in a crude oil refining system 46, the rectifying process is controlled to be carried out at 250-300 ℃, and the temperature of 290-300 ℃ is adopted for rectifying in the invention. Then, the evaporated crude oil vapor is separated by using a stainless steel vapor-water separation tank 19 corresponding to the crude oil rectifying still 47, and water/heavy oil/impurities and the like are separated therefrom. After separation, water, impurities and heavy oil are collected, and the separated heavy oil and impurities can be mixed with newly added raw materials and then enter the next thermal cracking to increase the oil yield. Then the oil gas is introduced into an air-cooled box type condenser 30 by a high-temperature resistant centrifugal induced draft fan 28 for condensation; after that, the condensed oil is filtered in two stages and finally becomes primary diesel oil. The distillation and purification of crude oil have a mass loss of about 10%. The non-condensable gas can be collected after being sealed by water and used for combustion power generation or other purposes, and the non-condensable gas can be safely discharged after being combusted.
Thermal cracking system with two, 20 or 40-size standard container size
In fig. 3, there is a thermal cracking system 1 for processing waste plastics/rubber and other organic solid wastes with a size of 20 or 40 feet standard container, a horizontal thermal cracking reaction kettle 2 made of ferrite or martensitic stainless steel, and an external thermal insulation layer is arranged outside the thermal cracking reaction kettle 2. The thermal cracking reaction kettle of the 20-foot standard container can contain about 1000 kg of waste plastics/rubber or other organic solid wastes. And about 2000 kg of waste materials can be contained in the thermal cracking reaction kettle of the 40-foot standard container. The thermal cracking reactor 2 is placed on the thermal cracking reactor base 15. The small pieces of waste plastics/rubber or other organic solid wastes first pretreated (steps of rough crushing, metal recovery, dehydration drying, crushing, compacting, etc.) are conveyed to the thermal cracking reactor 2 together with a specific solid catalyst by a material conveyor arranged outside the thermal cracking container 45. The thermal cracking kettle feed door 3 and the thermal cracking kettle rear end door 4 of the thermal cracking reaction kettle 2 are upper half circumference doors which can be opened within the range of 180 degrees. In order to completely seal the thermal cracking reaction kettle 2 and the single-shaft cutting type stirring mechanism 5 in the production process, the lower semi-circumference doors of the thermal cracking kettle feeding door 3 and the thermal cracking kettle rear end door 4 are fixed. The thermal cracking process varies greatly depending entirely on the type of plastic and the thermal cracking temperature. In the invention, the thermal cracking heating process is started under the condition of no oxygen or little oxygen, and the raw materials are gradually heated to 500 +/-50 ℃ at the heating rate of 2-3 ℃/min. The waste plastics/rubber can be gradually converted into thermal cracking oil, combustible gas and slag; while other organic solid wastes are gradually decomposed into inorganic substances, combustible gases, biochar, and liquid compounds (including thermal cracking oil). The heating of the thermal cracking reaction kettle 2 from normal temperature to 500 +/-50 ℃ is provided by a half-circumference high-power electromagnetic heating jacket 13, and the temperature, time, power and the like required by the heating of the electromagnetic heating jacket 13 are accurately controlled by an electromagnetic variable-frequency heating control cabinet 14. In the present invention, the horizontal thermal cracking reactor 2 is stationary and does not rotate. In order to ensure uniform heating of the material in the thermal cracking reactor 2, the single-shaft cutting type stirring mechanism 5 installed in the thermal cracking reactor 2 is rotated slowly and continuously during the heating. The rotation of the stirring component 5 is completed by the cooperation of the stirring component and main components of a mechanical transmission device reduction box 7, a double-row chain wheel coupling 8, an explosion-proof motor 11, two sets of bearing overheating-proof water cooling systems 12 and the like which are connected with the outside. The bearing overheating prevention water cooling system 12 is a water cooler with the capacity of 8 liters, the temperature of a water inlet end is 50-85 ℃, and the temperature of a water outlet end is 2-5 ℃.
After the material is heated in the thermal cracking reaction kettle 2 for 4-5 hours, the waste plastic or rubber in the thermal cracking reaction kettle 2 shows the transition of glass state → high elastic state → viscous state → gas state in terms of macroscopic performance. After the centrifugal induced draft fan 28 of high temperature resistant stainless steel is switched on, the fan is rotatory, because the impeller is fluted design, rotatory lifting force that produces can drive the air flow. Therefore, when oil gas enters the pump body of the high-temperature-resistant stainless steel centrifugal draught fan 28 through the air inlet, the oil gas is stirred in the oil gas, each groove is subjected to vortex type pressurization and one-step circulating pressurization to finally form strong air flow energy, and high-temperature pyrolysis gas generated in the pyrolysis reaction kettle 2 is firstly introduced into the dechlorination tank 18 along the oil suction gas pipeline 16 and the connecting pipeline 17 through the air outlet of the pyrolysis reaction kettle 2. The dechlorination tank 18 is made of high-temperature-resistant corrosion-resistant titanium alloy, and is divided into an upper section, a middle section and a lower section according to the height of the dechlorination tank, the inner part of the dechlorination tank is evenly divided into an upper section, a middle section and a lower section, each section is separated by a high-temperature-resistant corrosion-resistant titanium alloy fine net, and a solid dechlorinating agent is filled on the fine net of each; in the dechlorination tank 18, the pyrolysis gas is in countercurrent contact with an alkaline solid dechlorinating agent to achieve dechlorination effect; the gas extracted from the top of the dechlorination tank 18 then enters the top of a stainless steel steam-water separation tank 19. The steam-water separation tank 19 is a stainless steel helical blade type steam-water separator, and a helical blade type structure is designed in the steam-water separation tank 19; a large amount of high-temperature pyrolysis gas containing liquid components enters a shell of the steam-water separation tank 19 from an inlet direction, and starts to rotate and descend along a spiral channel formed by the inner wall of the shell of the steam-water separation tank 19 and a high-temperature-resistant stainless steel spiral blade, the spiral enables the gas to generate a high-speed centrifugal effect under the guide of the spiral blade, under the synergistic effect of gravity, liquid components with large specific gravity such as heavy oil, water, particulate matters and the like flow to the bottom of the steam-water separation tank 19 along the inner wall of the shell and the stainless steel spiral blade and are discharged by an automatic drainer or discharged at regular time, and clean and dry light oil gas is discharged from an outlet of the steam-water separation tank 19 and is introduced into an air-cooled box type condenser 30 arranged on a top plate outside a container by. The centrifugal draft fan 28 may be installed in front of the inlet of the air-cooled box type condenser 30 as shown in fig. 3, or may be installed at the outlet of the air-cooled box type condenser 30.
After the high temperature oil gas is cooled by the air-cooled box type condenser 30, most of the gas is condensed to become normal temperature oil. The oil flows into a stainless steel crude oil storage tank 35 along a crude oil outlet pipeline 34 for storage. The gas with the minimum amount of non-condensable in the oil gas is automatically discharged from a condenser exhaust pipe 33 in the air-cooled box type condenser 30, the main component of the gas is C1-C4 alkane, in order to eliminate potential safety hazards and avoid the backflow and overpressure of the gas, the gas can be introduced into a power generation device which can be configured outside the thermal cracking container 45 after being processed by a small water-sealed tank which is arranged outside the thermal cracking container 45 and used for combustion power generation. The thermal cracking system 1 is equipped with a ventilation system in addition to a necessary thermal cracking safety alarm system (including pressure abnormity, temperature abnormity, leakage of various toxic and harmful gases, and the like) 43, and cold air inlet in the thermal cracking container 45 is completed by a directional cooling guide fan 37 arranged at the bottom of the rear end wall of the container; because a large amount of heat can be discharged in the thermal cracking production process, the timely discharge of the internal air after absorbing the heat is completed by the box wall negative pressure radiating fans 41 arranged at the top of the rear end wall of the container and the plurality of top negative pressure radiating fans 42 arranged at the top plate of the container. After the thermal cracking process is completed and before the next thermal cracking production, the thermal cracking reaction kettle 2 must be rapidly cooled to about 50 ℃, and the cooling rate is 4-5 ℃/min. While keeping the ventilation system and the high temperature resistant stainless steel centrifugal induced draft fan 28 in the container working continuously, the thermal cracking kettle feeding door 3 of the thermal cracking reaction kettle 2 and the upper semi-circumference door of the thermal cracking kettle rear end door 4 can be opened for ventilation when the residual temperature in the kettle is 200 ℃. The whole thermal cracking process is controlled by the thermal cracking PLC control cabinet 44 of the thermal cracking system 1, and the thermal cracking PLC control cabinet 44 can integrally control the operation of all the facilities and equipment in the thermal cracking system 1. The thermal cracking system 1 is arranged in a 20 or 40 foot standard container 45. After the thermal cracking process is completed, the thermal cracking reactor 2 can be cleaned of the residues such as carbon black and ash by opening the carbon black and ash outlet 36 to connect with a mobile powder industrial dust collector. The collected carbon black can be recycled. The rear door 4 of the thermal cracking kettle can be opened for maintenance in the thermal cracking reaction kettle 2. The thermal cracking kettle rear end door 4 is an upper half circumference door which can be opened within a range of 180 degrees.
Stirring in thermal cracking reaction kettle
The waste plastics or rubber enters the thermal cracking reaction kettle 2 after being sorted and crushed. The thermal decomposition temperature of various waste plastics is different, but basically in the range of 350-500 ℃. The thermal decomposition temperature of the waste rubber is relatively low. Plastics are the most important part of the polymer material, and the yield and the dosage of the plastics account for more than 60 percent of the whole polymer material. The physical and mechanical properties of the plastic are closely related to the temperature, and the stress behavior of the plastic changes when the temperature changes, so that different physical states are presented. With the temperature rise of the thermal cracking reaction kettle 2, the waste plastics or rubber presents three mechanical states of glass state, high elastic state and viscous state on the macroscopic performance, and two changes from the glass state to the high elastic state and from the high elastic state to the viscous state. As shown in fig. 4, the physical states of the waste plastics or rubber that are different when the temperature rises [ plastic modification process, formulation and application/Yangming mountain, Li Lin regular script, etc.. Beijing: chemical industry Press, 2006.05, ISBN 7-5025-8724-1 ].
In FIG. 4, when the temperature is low (T < T)g) When the molecular motion energy of the polymer is low, the polymer is in a glass state. The thermal kinetic energy of the molecules increases gradually with increasing temperature, and when a certain temperature is reached, the thermal kinetic energy of the molecules is enough to overcome the potential barrier of internal rotation, and segmental motion can be performed, but the whole molecular chain is still in a state of being "frozen". The deformation produced in this state is a reversible high-elastic deformation, called the high-elastic state. When the temperature in the thermal cracking reaction kettle 2 continues to rise, when the heated temperature of the plastics exceeds the viscous flow temperature Tf(the viscous flow temperature is the transition of the polymer from the high-elastic state to the viscous state (or vice versa)In a high elastic state), the center of gravity of the whole macromolecule is relatively displaced (i.e. relative slippage is generated between the macromolecule and the macromolecule) due to the violent movement of the chain segment, and the high polymer shows high viscous flow under the action of external force, which is generally called as melt. The flow deformation is irreversible, and the mechanical state with high viscosity is called viscous flow state, and the viscous flow temperature TfIncreasing with increasing molecular weight. When the plastic/rubber is continuously heated to the thermal decomposition temperature TdAt high temperatures, the polymer begins to decompose and discolor and produce a material of relatively small molecular mass.
Generally, the viscosity of low molecular liquid is relatively low, and the viscosity is basically not changed along with the flowing state after the temperature is determined, for example, the viscosity of water is about 1mPa.s at room temperature. The absolute value of the viscosity of non-Newtonian liquid such as high molecular plastic or rubber is generally high when the non-Newtonian liquid is converted into liquid by heating. Zero shear viscosity eta of polymer meltAre all at 102~104In the range of Pa.s, 10 of the viscosity of water6The melt viscosity was found to be high. Fluids with a viscosity of less than 5pa.s are generally considered low viscosity fluids; the fluid of 5-50Pa.s is medium viscosity fluid; 50-500Pa.s of a high viscosity fluid. For very high viscosity fluids above 500pa.s, such as plastic or rubber melts as described herein.
In the thermal cracking process of waste plastics or rubber and other materials, when the temperature in the thermal cracking reaction kettle 2 exceeds the viscous flow temperature T of the materialsfIf the thermal cracking reaction kettle 2 is not uniformly stirred and the heat transfer between the kettle wall of the thermal cracking reaction kettle 2 and the material is not uniform, abnormal operation phenomena such as material sticking, agglomeration and even bed death are easily caused, and the normal operation of the thermal cracking reaction kettle 2 is influenced. The slag formation on the inner wall of the kettle body after the thermal cracking reaction frequently encountered in the thermal cracking production industry is caused by the reason that the materials become extremely high-viscosity fluid and then flow smoothly and are heated unevenly. If the kettle body is not cleaned, the slagging on the inner wall of the kettle body becomes thicker and thicker, and the heat conduction is seriously influenced. When the plastic or the rubber is in a viscous state, the viscosity is 1000-10000 Pa.s. To understandIn order to solve the problem of the caking property, the invention introduces a stirring mechanism 5 with a cutting type stirring paddle into the kettle body of the thermal cracking reaction kettle 2. The cutting type stirring paddle is the most tough stirring paddle, and the mixing and dispersion of high-viscosity materials are realized by the combination of shearing, smearing, stretching, folding, compressing, kneading and tearing actions (mainly materials). Due to the robust construction and the special design of the cutting type paddles, the surface of the paddle 6 that participates in the mixing is very wide and robust, thus enabling stable mixing of high viscosity and high load materials with a mixing uniformity of up to 99%.
The single-shaft cutting type stirring mechanism 5 is mainly composed of: the high-power explosion-proof motor comprises a high-power explosion-proof motor 11, a reduction gearbox 7, a cutting type blade 6, a stirring shaft, a shaft sleeve, a bearing seat and sealing assembly, a double-row chain wheel coupler 8, a bearing overheating prevention water cooling system 12 and the like.
A schematic diagram of main parts of the stirring mechanism 5 of the single-shaft cutting type is shown in fig. 5: the stirring mechanism 5 of the invention adopts a single-shaft layout, and the stirring shaft is provided with two sections of alternating spiral cutting type blades 6 with equal length. One of the clockwise blades 6 is twisted clockwise by 180 degrees, the other anticlockwise blade 6 is twisted anticlockwise by 180 degrees, and the diameter of the blades 6 is 700-900 mm, so that the layout can provide sufficient radial and axial mixing. Because the operating temperature in the thermal cracking reaction kettle 2 is high, the two blades 6 are made of high-temperature resistant stainless steel. The rotation of the single-shaft cutting type stirring mechanism 5 and the blades 6 is completed by the reduction box 7, the double-row chain wheel coupling 8 and the explosion-proof motor 11 (11 in figure 3) in a coordinated mode. In addition, in order to prevent the overheating of the bearing of the stirring shaft outside the autoclave 2, two sets of water cooling systems 12 (12 in fig. 3) for preventing the overheating of the bearing of the stirring shaft provide cooling circulation liquid to reduce the temperature.
The layout of the single-shaft cutting type stirring mechanism 5 installed in the thermal cracking reactor 2 is shown in FIG. 6: because the material (waste plastic or waste rubber) filled in the kettle body of the thermal cracking reaction kettle 2 can generate solid → liquid transformation when heated to a certain temperature, so that the volume change is very obvious, a larger space is formed above the kettle body which is almost filled initially, and the liquid level line at the moment is possibly slightly higher than the central axis of the horizontal thermal cracking reaction kettle 2 or is positioned below the central axis of the reaction kettle. If the stirring shaft of the stirring mechanism 5 is arranged along the central axis position of the thermal cracking reaction kettle 2, after the material is heated to be liquid, the paddle 6 can not contact the material in the circumferential motion, so that the stirring is not uniform, and the efficiency is low. In order to sufficiently stir the molten liquid, the stirring shaft of the entire stirring mechanism 5 is placed below the central axis of the thermal cracking reactor 2, as shown by the position of the stirring member 5 in fig. 6. The circumference of the thermal cracking kettle body 9 of the thermal cracking reaction kettle 2 is as shown in fig. 6, the maximum circumferential motion range of the blades 6 should be as close as possible to the inner wall kettle bottom of the thermal cracking kettle body 9, as shown by the dashed lines in fig. 6, the outer edges 10 of the blades are shown, such an arrangement can enable the materials to be sufficiently stirred in both solid and liquid states; the clearance between the outer edge 10 of the paddle and the bottom of the inner wall of the thermal cracking kettle body 9 of the thermal cracking reaction kettle 2 is 8-10 mm.
Fourth, industrial electromagnetic heating system
The traditional heating methods of various chemical reaction kettles basically adopt fuel oil, fuel gas, resistance wires, biofuel or other indirect heating, almost all heating methods realize heat transfer by utilizing the principle of temperature difference, and the traditional heating methods can lose a lot of heat energy in the heat transfer process on the one hand, and the production efficiency of equipment is reduced because the size of temperature difference can influence the heating speed on the other hand. In the traditional plastic thermal cracking process, materials are subjected to thermal cracking at a relatively high temperature, the outer wall of the thermal cracking reaction kettle 2 is usually directly heated at the high temperature, the materials on the inner wall of the thermal cracking reaction kettle 2 are heated discontinuously, and the temperature difference between the inner side and the outer side of the kettle wall of the thermal cracking reaction kettle 2 is large, so that the temperature of the outer wall of the thermal cracking reaction kettle 2 is high, and the thermal cracking reaction kettle 2 is easily damaged by high temperature and deformed; the inner wall raw material of the thermal cracking reaction kettle 2 is easy to be locally overheated to generate coking, which affects the oil product generation rate and the equipment service life, and the heat transfer effect is poor.
In the present invention, the electromagnetic heating thermal cracking reaction kettle 2 and the crude oil rectifying kettle 47 are adopted. Electromagnetic heating has the following advantages: in the induction heating process, the energy is transmitted in the form of electromagnetic waves, so that the kettle body of the thermal cracking reaction kettle 2 directly generates heat, and the induction heating process has the advantages of small interference from the outside, less energy diffusion, less heat loss and high heating efficiency. The effective rate of energy utilization is more than 95%, and compared with the common heating by an electric heating ring and an electric heating tube, the electromagnetic heating can save more than 30% of electric energy; because the heating is free of smoke dust, waste gas, peculiar smell and the like and the emission of harmful gas, the pollution to the operation environment is avoided, and the heating device belongs to an environment-friendly heat source; and automatic control is easy to realize. The parameters of the heat source in the processing process mainly comprise the power and the frequency of a power supply, the two electrical parameters are easy to realize automatic control in the control process, a related conversion module is not needed, and the processing quality can be controlled more effectively; the heating speed is high. Because the induction heating process is mainly realized by means of current induction diathermy and conduction, the material can be heated to the expected temperature in a short time and the temperature of the heated material can be accurately controlled; because the heating temperature is not concentrated like the traditional open fire, the oxidation of the kettle body equipment is small, and the service life of the kettle body equipment is greatly prolonged; the electric isolation between the heating body and the main circuit is realized, the electric leakage phenomenon caused by insulation damage is avoided, and the safety is greatly improved; because no open fire or explosion exists, the method is safe.
The heating of the thermal cracking reaction kettle 2 in the invention adopts a half-circumference high-power electromagnetic heating sleeve 13, which is a device for converting electric energy into heat energy by utilizing the electromagnetic induction principle. The electromagnetic controller rectifies 220V/380V and 50/60Hz alternating current into direct current through the rectifying circuit, the direct current is converted into high-frequency high-voltage electricity with the frequency of 20-40KHz through the control circuit, the high-frequency high-voltage electricity with high speed change flows through the coil to generate an alternating magnetic field with high speed change, and countless small eddy currents are generated in a metal body when alternating magnetic lines of force in the magnetic field pass through magnetic conductive metal (iron, cobalt and nickel) materials, so that the metal material can automatically heat at high speed, and the purpose of heating the metal material is achieved. The semi-circumference high-power electromagnetic heating jacket 13 uses a transformer with 380V voltage, comprises one or more high-power main machines driven in parallel, and is several meters long with a section of 50mm2Or 70 mm2The induction line, the MCU control unit, the wire coil bracket, the heat-insulating layer and the like。
In the present invention, the material (waste plastic, waste rubber or other organic solid waste) filled in the thermal cracking reaction kettle 2 is heated to a certain temperature, and then the solid → liquid transition occurs, so that a significant volume change occurs, and a large space is formed above the kettle body which is almost filled initially. In order to avoid the situation that the upper part of the kettle body of the thermal cracking reaction kettle 2 has no material in the later stage of the thermal cracking reaction and is continuously heated, so that overheating can be caused, in the invention, the semi-circumference electromagnetic induction coil of the electromagnetic heating sleeve 13 is only arranged on the outer semi-circumference surface of the kettle body from the bottom of the kettle body of the thermal cracking reaction kettle 2, and then the whole thermal cracking reaction kettle 2 is heated according to the principle that heat is always transferred upwards when the lower half part of the kettle body is heated, so that the use and energy consumption of the electromagnetic induction coil are reduced, and the overheating at the top of the kettle body is avoided. According to the same principle, when crude oil is rectified in the crude oil rectifying still 47, the outside of the still body is also heated by the semi-circumference high-power electromagnetic heating jacket 13. A half-circumference electromagnetic induction coil is shown in fig. 7.
According to past practical experience, ferrite or martensitic stainless steel is used as conductive metal to manufacture the kettle bodies of the horizontal cylindrical thermal cracking reaction kettle 2 and the crude oil rectifying kettle 47, then an insulating layer with the thickness of about 5 cm is arranged on the outer surface of the kettle body, and then high-temperature cloth is used for wrapping the outer surface of the kettle body. Then, arranging a half-circumference electromagnetic induction coil as shown in fig. 7 on the outer surface of the heat insulation layer, wherein the density and the number of turns of the coil are determined according to the temperature and the heating power required by induction; then an outer casing material (such as high-temperature cloth) is used for rigidly fixing multiple points of the semi-circumference electromagnetic induction coil to form an electromagnetic heating sleeve 13, and the electromagnetic heating sleeve directly carries out induction heating on the reaction kettle body, so that materials in the kettle body, such as waste plastics/rubber or other organic solid wastes, can be heated, and the heating temperature is controlled through a far infrared temperature analyzer and intelligent temperature control equipment, thereby obviously improving the heat energy utilization rate and accurately controlling the temperature rise. Because the half-circumference electromagnetic induction coil is arranged outside the reaction kettle body, the heating device cannot be damaged due to high temperature in the reaction kettle. Because no emission is generated in the heating process due to the heating process, the problems of low production efficiency, frequent maintenance of heating elements, environmental pollution and emission caused by combustion and the like of the traditional heating equipment are solved.
Fifth, oil absorption gas pipeline
The hydrocarbon intake conduit 16 in fig. 8 is made of 316 stainless steel. The apparatus is applied at the thermal cracking system 1 in fig. 3 and at the crude oil refining system 46 in fig. 12.
As shown in FIG. 3, when the waste plastics/rubber in the thermal cracking reactor 2 is converted from solid to liquid under electromagnetic heating, the volume of the material is greatly changed, and a certain space is formed at the top of the thermal cracking reactor 2. As the temperature rises, the movement of the molecules increases, and when the temperature rises to a certain point, the molecules of the liquid change from liquid state to gas state and escape from the liquid surface or the inside to the space above the thermal cracking reaction kettle 2. Because the thermal cracking reaction kettle 2 has a certain length, in order to ensure that the oil gas above the thermal cracking reaction kettle 2 is uniformly absorbed, in the invention, three oil pipes vertical to the axis of the thermal cracking reaction kettle 2 are equidistantly arranged on the top of the thermal cracking reaction kettle 2, the number of the oil pipes can be generally determined according to the length of the thermal cracking reaction kettle 2, and the inner diameter of the oil pipes can be determined according to actual requirements. One end of the three vertical oil pipes is hermetically connected with the inner wall of the top of the pyrolysis reaction kettle 2, and the other end is hermetically connected with a larger main oil gas suction pipeline vertical to the three vertical oil pipes, and the main oil gas suction pipeline and the vertical oil pipes form an oil gas suction pipeline 16.
Sixthly, gas-water separation
The stainless steel gas-water separation tank 19 shown in fig. 9 is applied at the thermal cracking system 1 in fig. 3 and at the crude oil refining system 46 in fig. 12. FIG. 9 is a schematic view of the internal structure of the stainless steel gas-water separation tank 19; a large amount of high-temperature gas containing liquid components enters the gas-water separation tank 19 from a medium gas inlet 20 of the separation tank and starts to rotate downwards along a spiral channel formed by the inner wall of a stainless steel shell of the gas-water separation tank 19 and a high-temperature-resistant stainless steel spiral blade 21; the spiral causes the gas to generate high-speed centrifugal action under the guide of the spiral blade 21, and under the synergistic action of gravity, components with large specific gravity such as heavy oil, water, particulate matters and the like flow to the liquid separation plate 25 along the pipe wall and the spiral blade 21 due to the speed reduction, and enter the bottom of the gas-water separation tank 19 after beginning to settle under the action of the liquid separation plate 25. The water is drained or discharged at regular intervals by the automatic drain valve 26. Other impurities may be discharged through the blow-down valve 27. Because the high-temperature gas rotates along the spiral channel to move downwards to form cyclone, low pressure is formed at the axial central gas outlet pipe 22 of the gas-water separation tank 19, and the clean and dry light oil gas with small relative density is gathered at the low-pressure area (gas outlet pipe inlet 23), moves upwards to the medium gas outlet 24 and is discharged.
Seventh, condensation of oil gas
The air-cooled box type condenser shown in fig. 10 is applied at the thermal cracking system 1 in fig. 3 and at the crude oil refining system 46 in fig. 12.
In fig. 10, the high-temperature oil gas is pumped into an air-cooled box type condenser 30 through an air inlet header 29 under the action of a stainless steel centrifugal induced draft fan 28. In the present invention, in order to maximally save the space inside the container and effectively dissipate the heat of condensing high-temperature oil gas, the air-cooled box type condenser 30 is installed on the ceiling outside the container, and is in direct contact with the external environment. The air-cooled box type condenser 30 contains the following main equipment: one or more shell-and-tube condensers 31, one or more air coolers 32 (4 in the present invention), a refrigerant circulation pump, an intelligent computer control system, etc. The intelligent computer control system is installed on the inner wall of the container for convenient operation.
The shell-and-tube condenser 31 is a dividing wall type heat exchanger in which the wall surface of the tube bundle is a heat transfer surface enclosed in a shell. The shell-and-tube heat exchanger is composed of a shell, a heat transfer tube bundle, a tube plate, a baffle plate (baffle plate), a tube box and the like. The shell is cylindrical, the tube bundle is arranged in the shell, and two ends of the tube bundle are fixed on the tube plate. The heat exchange fluid comprises a cold fluid and a hot fluid, wherein one fluid flowing in the tube is called a tube side fluid; another fluid flowing outside the tubes is called the shell-side fluid. To increase the heat transfer coefficient of the fluid outside the tubes, baffles are typically installed within the shell.
For more efficient heat dissipation, the air-cooled box type condenser 30 is equipped with an air cooler 32, and the air cooler 32 is a heat exchange device which is most used as condensing and cooling equipment in petrochemical and oil and gas processing production. The air cooler 32 is mainly composed of three parts, namely a coil, a fan and a shell. The coil pipe of the air cooler 32 is made of aluminum pipe aluminum sheets and steel pipe steel sheets which can be selected. The fins are integral corrugated porous aluminum sheets or steel sheets. In the invention, four high-power special axial flow air coolers are selected as matched fans, the fan has the characteristics of high efficiency, low noise, long service life and the like, and the blades are die-cast aluminum alloy wing type forward-swept twisted blades, the strength is high, and the service temperature is-40-50 ℃.
The circulating liquid for conveying reaction, absorption, separation and absorption liquid regeneration in the device is completed by a refrigerant circulating pump by a pump. To overcome the pressure drop of the circulation system, a low-lift pump may be used.
The high-temperature oil gas is cooled by the shell-and-tube condenser 31 and then condensed into normal-temperature oil, and enters the crude oil storage tank 35 along the crude oil outlet pipeline 34 or enters the pre-filter 54 of the first joint in the duplex filter along the oil outlet pipeline 53. The non-condensable gas in the oil gas is automatically discharged from the exhaust pipe 33 of the condenser, the main component of the gas is alkane of C1 to C4, and the gas can be processed by a small water-sealed tank arranged outside the container and then introduced into a power generation device arranged outside the container for combustion and power generation.
The shell-and-tube condenser 31 of the air-cooled box type condenser 30 can be disassembled for periodic maintenance and cleaning, so as to prevent a small amount of condensed heavy oil accumulated for a long time from partially blocking a pipeline.
Eight, ventilation system in container
The ventilation system shown in fig. 11 is applied at the thermal cracking system 1 in fig. 3 and at the crude oil refining system 46 in fig. 12.
In the invention, in order to keep the ventilation in the container and the safety of operators, all control equipment and safety equipment are placed on one side of the container close to a wall, all operation equipment are placed on the other side of the container, and a channel is formed in the middle and corresponds to a container door. The channel is used for operating personnel and used as an escape channel.
Since the thermal cracking and rectification reactions release a large amount of heat, good ventilation and proper temperature must be maintained in the container for safe operation in the container. During production, the front end door of the container must remain open. The lower part of the rear end wall of the container is provided with a directional cooling guide fan 37, and when the container works, the directional cooling guide fan 37 can guide cold air outside the container into the container; because the front door of the container is opened, air convection is easily formed with the directional cooling induced fan 37.
In addition, the thermal cracking system 1 or the crude oil refining system 46 has air inlets at the side and bottom of each control cabinet. When in use, cold air is absorbed from the air inlet 38 at the bottom of the control cabinet and the air inlet 39 at the side of the control cabinet. In operation, most of the heat from the control cabinet is exhausted to the interior of the container through the top-mounted in-line duct 40. The thermal cracking reaction kettle 2 or the crude oil rectifying kettle 47 can discharge a large amount of heat in the production process, the internal air absorbs the heat and flows to the top, and then the heat is discharged by two box wall negative pressure radiating fans 41 arranged on the upper part of the rear end wall of the container and a plurality of top negative pressure radiating fans 42 arranged on the top plate of the container, so that the equipment in the control cabinet can be ensured to run reliably for a long time.
Since thermal cracking or distillation is not continuous, the temperature in the first vessel needs to be reduced to about 50 ℃. If natural cooling is used, it takes several hours, which is not advantageous in increasing productivity. After thermal cracking or rectification is finished, all ventilation systems and the high-temperature stainless steel centrifugal draught fans 28 in the container are kept to work continuously, and when the residual temperature in the thermal cracking reaction kettle 2 is reduced to 200 ℃ or the temperature in the crude oil rectification kettle 47 is reduced to about 120 ℃, front and rear end doors of the thermal cracking reaction kettle 2 or the crude oil rectification kettle 47 are opened to ventilate until the temperature is reduced to 50 ℃.
Collecting and treating carbon black
The mixture of carbon black and ash, which is generated after the thermal cracking reaction of the organic solid waste in the thermal cracking reaction kettle 2, is mainly deposited at the bottom of the fixed reaction kettle. If the mixture is not cleaned in time, the produced gas is not circulated in the next production process, so that the gas blockage is produced, the pressure in the thermal cracking reaction kettle 2 is continuously increased, and the pressure in the thermal cracking reaction kettle 2 exceeds the standard and the explosion danger is produced; in addition, the newly added catalyst fails due to the fact that the catalyst is poisoned if the surface of the newly added catalyst is surrounded by carbon powder; the mixture of the carbon powder and the ash residue can cause poor oil quality of waste plastics or waste rubber oil refining, and the production cannot be continuous and cannot be industrialized. Therefore, it is desirable to effectively remove the carbon powder and ash mixture from thermal cracking reactor 2 as quickly as possible after each thermal cracking reaction is completed.
The bottom of the traditional thermal cracking reaction kettle 2 is provided with a helical blade pushing and chip removing machine to take the mixture of carbon powder and ash out of the reaction kettle. However, the thermal cracking reactor 2 of the present invention has a large bottom area, is not flat, and has a certain curvature. The blades of the helical blade pushing and chip removing machine can not completely cover the area of the bottom of the kettle in motion, so the ash discharging efficiency of the device is not high, and ash residues are always left at the bottom of the thermal cracking reaction kettle 2.
In order to solve the problem, in the invention, as shown in a carbon black and ash residue outlet 36 in fig. 3, a special flange-type valve port (carbon black and ash residue outlet 36) is reserved on a rear end door 4 of a thermal cracking kettle of a horizontal thermal cracking reactor 2 so as to be convenient for being externally connected with a matched mobile powder industrial dust collector, and a lengthened suction nozzle of the mobile powder industrial dust collector can enter the deep part of the kettle body of the thermal cracking reactor 2 through the flange-type valve port and can freely move; under the action of strong negative pressure difference generated by the high-pressure fan, ash residues near the suction nozzle enter the dust collector along with air flow, the ash and dust pass through the filter in the dust collector, the garbage and the dust are left in the ash storage box, and the air is discharged out of the dust collector after being filtered, so that the whole dust collection whole process in the pyrolysis reaction kettle 2 is completed.
366 kg of crude carbon black is produced as a by-product for every 1 ton of used tires; for every 1 ton of waste plastics, 50-150 kg of crude carbon black is produced. The collected ash can be used as an additive to building materials, and the carbon black can be reused in the following fields: traditionally, carbon black has been used as a reinforcing agent in tires. Today, because of its unique characteristics, the use of carbon black has expanded to include pigmentation, Ultraviolet (UV) stabilizers, and conductive agents in a variety of everyday and specialty high performance products, including:
1. tires and industrial rubber articles: adding thermally cracked carbon black simultaneously to the rubber filler as a reinforcing agent or enhancer; for various types of tires, inner liners, carcasses, sidewalls, and treads, and different types of requirements are used depending on the particular performance.
2. Plastic carbon blacks are now widely used in moldings in products such as conductive packaging, films, fibers, garbage bags, piping and semiconductive cable compounds, industrial bags, photographic containers, agricultural mulch films, stretch packaging and automotive, electrical/electronic, household thermoplastic molding applications for appliances and blow molded containers.
3. Electrostatic discharge (ESD) compounds: well-designed thermal cracking carbon blacks have shifted the electrical characteristics of products such as insulation to conductive electronic packaging, safety applications and automotive parts.
4. High-performance coating: thermally cracked carbon black provides pigmentation, electrical conductivity, and ultraviolet protection and is useful in many coating applications, including automotive (primer) primers and clearcoats), marine, aerospace, decorative, wood, and industrial coatings.
5. Carbon powder and printing ink: thermally cracked carbon black can enhance the formulation and provide a wide range of flexibility to meet specific color requirements.
6. Activated carbon: thermal cracked carbon black has a high iodine absorption value, making it absorb potential adsorbents for water purification and gold recovery.
7. For smelting high-quality non-ferrous metals and cast iron; it is used as carburizing agent for mechanical parts to raise the hardness and wear resistance of steel parts.
8. Mixing with potassium nitrate and sulfur to obtain black powder.
9. Use as a solid fuel: the low calorific value of the carbon is about 25MJ/kg, the carbon is a fuel with a medium calorific value, and the pollution degree after combustion is very low; can be directly used as civil fuel, for baking food, burning food and heating, and can be converted into gas fuel by a gasification furnace; the treated thermal cracking carbon black has higher calorific value, fixed carbon and lower calorific value sulfur and ash content; it can potentially be used as a pellet or high quality fuel briquette.
Crude oil refining system with standard container size of ten, 20 or 40 feet
In fig. 12, in a crude oil refining system 46 with a size of 20 or 40 feet and a standard container, a horizontal crude oil rectifying still 47 is made of ferrite or martensitic stainless steel, an external heat insulation layer is arranged outside a crude oil rectifying still 47 body, and 1500 liters of crude oil made of waste plastics/rubber or other organic solid wastes can be contained in the crude oil rectifying still 47 configured in a 20 feet standard refining container 60. And 3000 liters of crude oil made of waste plastics/rubber or other organic solid wastes can be contained in the crude oil rectifying still 47 configured in the 40-foot standard refining container 60. The crude oil rectifying still 47 is placed on the rectifying still base 51. Raw material crude oil can be pumped into the crude oil rectifying still 47 by an oil pump from a crude oil feed port 49 at the front end of the crude oil rectifying still 47. The rectification needs to gradually increase the temperature of the crude oil from normal temperature to 200-350 ℃, preferably 250-300 ℃, and the temperature rise rate is 1-1.5 ℃/min. In the invention, the rectification is carried out at 290-300 ℃. The temperature rise of the crude oil rectifying kettle 47 is provided by a semi-circumference high-power electromagnetic heating jacket 13, and the temperature, time, power and the like required by heating are accurately controlled by a corresponding electromagnetic variable-frequency heating control cabinet 14. The centrifugal induced draft fan 28 of the high temperature resistant stainless steel utilizes the lifting force generated by the rotation of the impeller to introduce the high temperature oil gas generated in the crude oil rectifying still 47 into the gas-water separation tank 19 made of stainless steel along the corresponding oil absorption gas pipeline 16 and the connecting pipeline 17. The gas-water separation tank 19 is a stainless steel helical blade type steam-water separator, a helical blade type structure is designed in the device, a large amount of gas-liquid mixed medium containing liquid components enters the shell of the device from the direction of a medium inlet 20 of the separation tank, starts to rotate and descend along a helical channel formed by the inner wall of the shell and a high-temperature resistant stainless steel helical blade 21, and the helix leads the gas to generate high-speed centrifugation under the guidance of the helical blade, under the synergistic action of gravity, liquid components with large specific gravity such as heavy oil, water, particulate matters and the like flow to the gas-water separation tank 19 along the pipe wall and the helical blades 21 due to the reduction of speed and are discharged by the automatic drain valve 26 or are discharged at regular time by the blow-down valve 27, clean and dry light oil gas is discharged through the medium gas outlet 24 and is introduced into the air-cooled box type condenser 30 arranged on the top plate outside the refining container 60 through the stainless steel centrifugal induced draft fan 28 and the air inlet header 29. The induced draft fan 28 can be installed in front of the inlet of the air-cooled box type condenser 30 as shown in fig. 12, or can be installed at the outlet of the air-cooled box type condenser 30. The non-condensable gas in the oil gas is automatically discharged from a condenser exhaust pipe 33 of the air-cooled box type condenser 30, the main component of the gas is C1-C4 alkane, and in order to eliminate potential safety hazards and avoid the backflow and overpressure of the gas, the gas can be treated by a small water-sealed tank arranged outside the refining container 60 and then introduced into a power generation device which can be matched outside the refining container 60 for combustion power generation.
The high temperature oil gas is cooled by the air-cooled box type condenser 30 and then condensed into normal temperature oil. From the oil outlet line 53, the oil enters a duplex strainer formed by a first prefilter 54 and a second fine filter 56. Under the driving of the oil pump 55, the primary diesel oil filtered by the first pre-filter 54 and the second fine filter 56 is delivered to a stainless steel primary diesel oil storage tank 57 at the tail end of the crude oil refining system 46 by another oil pump 55 for storage. In the whole rectification process, the dynamic change of the crude oil liquid level in the crude oil rectification kettle 47 can be detected by the real-time radar wave sent by the high-temperature resistant radar liquid level meter 52 arranged at the top of the crude oil rectification kettle 47 so as to judge whether the rectification process is successfully completed.
Crude oil refining system 46 is equipped with a ventilation system in addition to the requisite refining safety alarm system 58 (including pressure anomalies, temperature anomalies, leaks of various toxic and harmful gases, etc.). The cold air intake in the refining container 60 is completed by a directional cooling induced fan 37 arranged at the bottom of the rear end wall of the refining container 60. Because a large amount of heat can be discharged in the rectification production process, the internal air can be discharged in time after absorbing the heat by the tank wall negative pressure radiating fans 41 arranged at the top of the rear end wall of the refining container 60 and the plurality of top negative pressure radiating fans 42 arranged at the top plate of the refining container 60. The whole rectification process is controlled by a refining PLC control cabinet 59. The refining PLC control cabinet 59 may integrally control the operation of all of the facilities and equipment in the crude oil refining system 46. The crude oil refining system 46 is disposed within a 20 foot or 40 foot standard refining container 60. After the rectification process is completed, the cleaning of the residue in the crude oil rectification tank 47 can be completed by opening the rectification tank rear end door 50. Before the next round of rectification, the crude oil rectification kettle 47 must be cooled to about 50 ℃. And when the ventilation system in the container and the stainless steel high-temperature resistant centrifugal induced draft fan 28 continuously work, the front end door 48 and the rear end door 50 of the rectifying still can be opened and matched for ventilation when the residual temperature in the crude oil rectifying still 47 reaches 120 ℃. The diameters of the front end door 48 and the rear end door 50 of the rectifying still are slightly smaller than the diameter of the body of the crude oil rectifying still 47, and the front end door and the rear end door can be opened completely, so that operators can work conveniently.
Eleven, filtration of the rectified oil
Figure 13 shows a stainless steel duplex filter. The duplex filter is suitable for solid-liquid separation in the industries of edible oil, petrochemical industry and the like. The duplex filter is formed by connecting two stainless steel filters and can be a single-bag parallel duplex filter or a filter element serial duplex filter. The invention adopts a filter element series connection type duplex filter. The filter element tandem type duplex filter adopts two sets of cylindrical or corrugated stainless steel sintered filter elements, and the stainless steel sintered filter elements have the advantages of excellent and uniform filtering precision, small filtering impedance, high mechanical strength, good wear resistance, heat resistance and cold resistance, easy cleaning and the like, and are widely applied to the field of petrochemical industry.
The first joint of the duplex filter is a pre-filter 54, the second joint of the duplex filter is a fine filter 56, the filtering precision of a filter element adopted by the pre-filter 54 is 50-200 mu m, and the pre-filter can effectively remove suspended matters, larger particles and the like in oil. The filtering precision of the filter element adopted by the fine filter 56 is 5-40 mu m, and the fine filter can effectively remove smaller impurities in the oil. The flow of oil from the first prefilter 54 to the second fine filter 56 is driven by an oil pump 55. The primary diesel oil filtered by the second fine filter 56 is sent by another oil pump 55 to a stainless steel primary diesel oil storage tank 57 at the end of the crude oil refining system 46 for storage.
Twelve, modular equipment
In the invention, a large number of advanced universal modular designs are adopted, and the combination of the system is very flexible. Due to modularization and standardization of the components, the whole machine reliability of the system is high, the system is flexible in design and easy to expand. As with some of the components listed below, thermal cracking system 1 is the same equipment as crude oil refining system 46, except that the size, power, control parameters, etc. are varied as needed.
A horizontal thermal cracking reaction kettle 2 made of ferrite or martensitic stainless steel and a crude oil rectifying kettle 47 made of the same material; a half-circumference high-power electromagnetic heating jacket 13 applied to two different systems and an electromagnetic variable-frequency heating control cabinet 14 for controlling the electromagnetic heating jacket 13; the system comprises an oil suction gas pipeline 16, a gas-water separation tank 19 made of stainless steel, a high-temperature resistant stainless steel centrifugal induced draft fan 28, an air cooling box type condenser 30 and ventilation systems in containers with the same layout, wherein the oil suction gas pipeline 16, the high-temperature resistant stainless steel centrifugal induced draft fan 28, the air cooling box type condenser 30 and the ventilation systems are applied to two different systems; a thermal cracking safety alarm system 43 in the thermal cracking container 45 and a refining safety alarm system 58 in the refining container 60; a vertical cylinder stainless steel crude oil storage tank 35, a primary diesel oil storage tank 57 and the like.
Example one
1000 kg of waste plastic is subjected to pretreatment such as coarse crushing, metal recovery, mechanical dehydration, drying, crushing and the like, and then is compacted into small blocks. These pieces are then fed by means of an external feeder into the thermal cracking reactor 2 shown in FIG. 3. In this embodiment, a thermal cracking system 1 with a 20-foot standard container is used. The thermal cracking reactor feeding door 3 of the thermal cracking reactor 2 is closed, the front end door of the thermal cracking container 45 is opened, and then the thermal cracking safety alarm system 43 is started first. Then the ventilation system, the stirring function and the heating function controlled by the electromagnetic variable frequency heating control cabinet 14 controlled by the thermal cracking PLC control system 44 are started. The single-shaft cutting type stirring mechanism 5 stirs materials under the synergistic effect of the explosion-proof motor 11, the reduction gearbox 7, the double-row chain wheel coupler 8 and the bearing overheating-prevention water cooling system 12, and the stirring speed is 40-50 revolutions per minute. The thermal cracking reaction kettle 2 is heated from the hot normal temperature to 500 ℃ by an electromagnetic heating jacket 13, and the heating speed and power are controlled by an electromagnetic variable frequency heating control cabinet 14. In this embodiment, the heating rate is 2 to 3 ℃/min. After the material is heated in the thermal cracking reaction kettle 2 for 4-5 hours, the thermal cracking PLC control system 44 controls to start the corresponding centrifugal induced draft fan 28. Under the action of a centrifugal draught fan 28, high-temperature pyrolysis gas is firstly introduced into a dechlorination tank 18 along an oil suction gas pipeline 16 and a connecting pipeline 17; in the dechlorination tank 18, the pyrolysis gas is in countercurrent contact with an alkaline solid dechlorinating agent to achieve dechlorination effect; the gas extracted from the top of the dechlorination tank 18 enters the top of a stainless steel steam-water separation tank 19, under the synergistic action of gravity, liquid components with large specific gravity such as heavy oil, water, particulate matters and the like are discharged from the bottom of the steam-water separation tank 19, and the clean and dry light oil gas is discharged from an outlet of the steam-water separation tank 19 and is introduced into an air-cooled box type condenser 30 arranged on a top plate outside the thermal cracking container 45 by a centrifugal draught fan 28; after the high-temperature oil gas is cooled by the air-cooled box type condenser 30, most of the gas is condensed to become normal-temperature oil; the oil flows into a stainless steel crude oil storage tank 35 along a crude oil outlet pipeline 34 for storage. 1000 kilograms of waste plastic can produce 600-700 liters of crude oil. The gas in the oil gas is exhausted automatically through the exhaust pipe 33 of the condenser, and the non-condensable gas after safe treatment can be introduced into a power generation device arranged outside the thermal cracking container 45 for combustion power generation. After the first kettle is produced, in the process of quickly cooling the thermal cracking reaction kettle 2, a ventilation system and a stainless steel high-temperature resistant centrifugal induced draft fan 28 in the thermal cracking container 45 keep continuously working. When the residual temperature of the thermal cracking reaction kettle 2 is reduced to 200 ℃, the upper semi-circumference doors of the feeding door 3 and the rear end door 4 of the thermal cracking kettle can be opened to be matched with other ventilation facilities in the thermal cracking container 45 for rapid temperature reduction. When the thermal cracking reaction kettle 2 is rapidly cooled to about 50 ℃, the feeding door 3 and the rear end door 4 of the thermal cracking kettle are closed, and the centrifugal induced draft fan 28 is closed. The cleaning of the residue such as carbon black and ash in the thermal cracking reactor 2 can be accomplished by opening the carbon black and ash outlet 36 and connecting to a mobile powder industrial dust collector. The collected carbon black can be recycled.
Example two
1000 kg of crude oil obtained by carrying out the thermal cracking process described in the first embodiment on the waste plastics is stored in a stainless steel crude oil storage tank 35. In order to expand the application of the crude oil, the thermal cracking system 1 of the embodiment can be matched with a crude oil refining system 46 with the size of 20 containers to further refine the crude oil. As shown in FIG. 12, 600-700L of crude oil produced in the first embodiment is pumped into a crude oil rectifying still 47 through a crude oil inlet 49 by an oil pump. Then the crude oil feed port 49 is closed, the front end door of the refining container 60 is opened, and the refining safety alarm system 58 is started. Then the ventilation system in the refining PLC control cabinet 59 and the heating function controlled by the electromagnetic variable-frequency heating control cabinet 14 are started. The temperature rise of the crude oil rectifying kettle 47 is provided by a semi-circumference high-power electromagnetic heating jacket 13, and the temperature, time, power and the like required by heating are accurately controlled by a corresponding electromagnetic variable-frequency heating control cabinet 14. In the embodiment, the rectification is carried out at 290-300 ℃, and the temperature rise rate is 1-1.5 ℃/min; after heating for about 3 hours, the refining PLC control cabinet 59 controls to turn on the corresponding centrifugal draught fan 28. Under the action of a centrifugal draught fan 28, high-temperature oil gas generated in the crude oil rectifying kettle 47 is introduced into a gas-water separation tank 19 made of stainless steel along a corresponding oil suction gas pipeline 16 and a connecting pipeline 17; under the synergistic action of gravity, liquid components with large specific gravity such as heavy oil, water, particulate matters and the like are discharged from the bottom of the steam-water separation tank 19, clean and dry light oil gas is discharged from an outlet of the steam-water separation tank 19, and is introduced into an air-cooled box type condenser 30 arranged on a top plate outside the refining container 60 through a stainless steel centrifugal induced draft fan 28 and an air inlet main pipe 29; the high temperature oil gas is cooled by the air-cooled box type condenser 30 and then condensed into normal temperature oil; from the outlet line 53, the oil enters a duplex strainer formed by a first duplex strainer 54 and a second duplex fine strainer 56; the primary diesel oil obtained by the duplex filtration is transferred to a stainless steel primary diesel oil storage tank 57 by an oil pump 55 for storage. In the whole rectification process, the dynamic change of the crude oil liquid level in the crude oil rectification kettle 47 can be detected by the real-time radar wave sent by the high-temperature resistant radar liquid level meter 52 arranged at the top of the crude oil rectification kettle 47 so as to judge whether the rectification process is successfully completed. The non-condensable gas in the oil gas is automatically discharged from a condenser exhaust pipe 33 of the air-cooled box type condenser 30, and the non-condensable gas can be safely processed and then introduced into a power generation device which is matched outside the refining container 60 for combustion power generation. In the process of quickly cooling the rectifying still 47 after the crude oil is rectified, the ventilation system and the stainless steel high temperature resistant centrifugal induced air 28 in the refining container 60 keep working continuously. When the residual temperature in the rectifying still reaches 120 ℃, the front end door 48 of the rectifying still and the rear end door 50 of the rectifying still can be opened and matched for ventilation. When the temperature of the rectifying still 47 is reduced to about 50 ℃, the front end door 48 and the rear end door 50 of the rectifying still can be closed, and then the centrifugal induced draft fan 28 is closed. After the rectification process is completed, the cleaning of the residue in the crude oil rectification tank 47 can be completed by opening the rectification tank rear end door 50.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.

Claims (50)

1. A portable container system for processing organic solid waste material, characterized by: the container system comprises a thermal cracking system (1) borne by a thermal cracking container (45), or a thermal cracking system (1) borne by the thermal cracking container (45) and a crude oil refining system (46) borne by a refining container (60) matched with the thermal cracking system (1); the organic solid waste is put into a thermal cracking reaction kettle (2) in a thermal cracking system (1) for thermal cracking, crude oil is obtained after dechlorination, gas-water separation and condensation of a thermal cracking product, the crude oil is sent into a crude oil storage tank (35) for storage, or is sent into the crude oil storage tank (35) and then pumped into a crude oil rectifying kettle (47) in a crude oil refining system (46) or is directly sent into a crude oil rectifying kettle (47) in the crude oil refining system (46) for rectification of the crude oil in the crude oil rectifying kettle (47), and the rectified product is subjected to gas-water separation, condensation and filtration to obtain primary diesel oil which is sent into a primary diesel oil storage tank (57) for storage.
2. The transportable container system for processing organic solid waste material as recited in claim 1, wherein: the thermal cracking system (1) comprises thermal cracking control equipment, thermal cracking safety alarm equipment (43) and thermal cracking operation equipment, the space in the thermal cracking container (45) is divided into two side areas close to the side wall of the thermal cracking container (45) and a channel formed between the two side areas along the length direction of the thermal cracking container (45), wherein one side area is used for installing the thermal cracking control equipment and the thermal cracking safety alarm equipment (43), and the other side area and the top of the thermal cracking container (45) are used for installing the thermal cracking operation equipment.
3. The transportable container system for processing organic solid waste material as recited in claim 1 or 2, wherein: the crude oil refining system (46) comprises a refining control device, a refining safety alarm device (58) and a refining operation device, wherein the space in the refining container (60) is divided into two side areas close to the side wall of the refining container (60) along the length direction of the refining container (60) and a channel formed between the two sides, wherein one side area is used for installing the refining control device and the refining safety alarm device (58), and the other side area and the top of the refining container (60) are used for installing the refining operation device.
4. The transportable container system for processing organic solid waste material as recited in claim 1, wherein: the thermal cracking reaction kettle (2) and the crude oil rectifying kettle (47) are made of ferrite or martensitic stainless steel.
5. The transportable container system for processing organic solid waste material as recited in claim 1, wherein: thermal cracking system (1) including thermal cracking reation kettle (2), dechlorination jar (18), gas-water separation jar (19), air-cooled box formula condenser (30) and crude oil holding vessel (35), thermal cracking reation kettle (2) adopt electromagnetic heating cover (13) to heat, the oil gas pipeline (16) of inhaling that thermal cracking reation kettle (2) top set up is connected with the import of dechlorination jar (18) through connecting tube (17), the export of dechlorination jar (18) is connected with the import of gas-water separation jar (19) through connecting tube (17), the export of gas-water separation jar (19) is connected with the air inlet of air-cooled box formula condenser (30) through corresponding air inlet manifold (29), the crude oil pipeline (34) of air-cooled box formula condenser (30) are connected with the crude oil import of crude oil holding vessel (35).
6. The transportable container system for processing organic solid waste material as recited in claim 1 or 5, wherein: the thermal cracking reaction kettle (2) is arranged on a thermal cracking reaction kettle base (15) fixedly arranged in a thermal cracking container (45).
7. The transportable container system for processing organic solid waste material as recited in claim 1 or 5, wherein: thermal cracking reation kettle (2) be equipped with thermal cracking cauldron feed gate (3) that are used for the feeding and thermal cracking cauldron rear end door (4) that are used for the maintenance, the lower semicircle door of thermal cracking cauldron feed gate (3) and thermal cracking cauldron rear end door (4) is all fixed, and the first half circumference door of both can open at 180 within ranges.
8. The transportable container system for processing organic solid waste material as recited in claim 7, wherein: the lower semi-circumference door of the rear end door (4) of the thermal cracking kettle is provided with a carbon black and ash residue outlet (36), and the carbon black and ash residue outlet (36) can be externally connected with a matched mobile powder industrial dust collector.
9. The transportable container system for processing organic solid waste material as recited in claim 1 or 5, wherein: the thermal cracking reaction kettle (2) is internally provided with a single-shaft cutting type stirring mechanism (5), the stirring mechanism (5) comprises a stirring shaft with blades (6), an explosion-proof motor (11), a reduction gearbox (7) and a double-row sprocket coupling (8), the output shaft of the explosion-proof motor (11) is connected with the reduction gearbox (7), and the output gear of the reduction gearbox (7) is connected with a driven gear on the stirring shaft through the double-row sprocket coupling (8).
10. The transportable container system for processing organic solid waste material as recited in claim 9, wherein: two sections of alternating spiral cutting type blades (6) with the same length are arranged on the stirring shaft.
11. The transportable container system for processing organic solid waste material as recited in claim 10, wherein: one blade (6) is twisted by 180 degrees clockwise, and the other blade (6) is twisted by 180 degrees anticlockwise and is arranged on the stirring shaft.
12. The transportable container system for processing organic solid waste material as recited in claim 9, wherein: the diameter of the paddle (6) is 700-900 mm.
13. The transportable container system for processing organic solid waste material as recited in claim 9, wherein: the paddle (6) is made of high-temperature-resistant stainless steel.
14. The transportable container system for processing organic solid waste material as recited in claim 9, wherein: and a stirring shaft of the stirring mechanism (5) is positioned below the lower part of the central axis of the thermal cracking reaction kettle (2).
15. The transportable container system for processing organic solid waste material as recited in claim 14, wherein: and a gap between the outer edge (10) of the paddle (6) and the bottom of the inner wall of the thermal cracking kettle body (9) of the thermal cracking reaction kettle (2) is 8-10 mm.
16. The transportable container system for processing organic solid waste material as recited in claim 9, wherein: the stirring mechanism (5) is provided with a bearing overheating prevention water cooling system (12), and the bearing overheating prevention water cooling system (12) is used for cooling a bearing of the stirring shaft.
17. The transportable container system for processing organic solid waste material as recited in claim 16, wherein: the temperature of the water inlet end of the bearing overheating prevention water cooling system (12) is 50-85 ℃, and the temperature of the water outlet end is 2-5 ℃.
18. The transportable container system for processing organic solid waste material as recited in claim 5, wherein: the dechlorination tank (18) is made of high-temperature-resistant and corrosion-resistant titanium alloy or ceramic.
19. The transportable container system for processing organic solid waste material as recited in claim 18, wherein: when the dechlorination tank (18) adopts a solid dechlorinating agent, the dechlorination tank (18) is divided into an upper section, a middle section and a lower section according to the height of the dechlorination tank, the inner part of the dechlorination tank is evenly divided into the upper section, the middle section and the lower section, each section is separated by a high-temperature-resistant and corrosion-resistant titanium alloy fine net, and the solid dechlorinating agent is buried in each section of the titanium alloy fine net.
20. The transportable container system for processing organic solid waste material as recited in claim 18, wherein: the dechlorination tank (18) adopts 10-20wt% of NaOH solution as dechlorination agent.
21. The transportable container system for processing organic solid waste material as recited in claim 1, wherein: crude oil refining system (46) include crude oil rectifier (47), gas-water separation jar (19) corresponding with crude oil rectifier (47), air-cooled box formula condenser (30), duplex filter and elementary diesel oil holding vessel (57), crude oil rectifier (47) adopt corresponding electromagnetic heating cover (13) to heat, oil absorption pipeline (16) that crude oil rectifier (47) top set up are connected with the import of gas-water separation jar (19) through corresponding connecting tube (17), the export of gas-water separation jar (19) is connected with the air inlet of air-cooled box formula condenser (30) through corresponding air inlet main (29), oil outlet pipeline (53) of air-cooled box formula condenser (30) is connected with the import of duplex filter, the export of duplex filter is connected with the oil inlet of elementary diesel oil holding vessel (57) through the pipeline.
22. The transportable container system for processing organic solid waste material as recited in claim 1 or 21, wherein: the crude oil rectifying kettle (47) is arranged on a rectifying kettle base (51) fixedly arranged in the refining container (60).
23. The transportable container system for processing organic solid waste material as recited in claim 1 or 21, wherein: the crude oil rectifying kettle (47) is provided with a rectifying kettle front end door (48) capable of feeding and ventilating and a rectifying kettle rear end door (50) capable of overhauling and ventilating, and circumferential doors of the rectifying kettle front end door (48) and the rectifying kettle rear end door (50) can be completely opened.
24. The transportable container system for processing organic solid waste material as recited in claim 23, wherein: and a crude oil feeding hole (49) is formed in the lower half circumference of a front end door (48) of the rectifying still.
25. The transportable container system for processing organic solid waste material as recited in claim 5 or 21, wherein: electromagnetic heating cover (13) adopt electromagnetic frequency conversion heating switch board (14) to control, this electromagnetic heating cover (13) are including arranging heat preservation, semicircle electromagnetic induction coil and the outer covering material at thermal cracking reation kettle (2) and/or the cauldron body surface of crude oil rectifying still (47), arrange the heat preservation at the cauldron body surface of thermal cracking reation kettle (2) and/or crude oil rectifying still (47), then arrange semicircle electromagnetic induction coil at the surface of heat preservation, form electromagnetic heating cover (13) with outer covering material with semicircle electromagnetic induction coil multiple spot rigidity fixation at last.
26. The transportable container system for processing organic solid waste material as recited in claim 1 or 5, wherein: the materials in the thermal cracking reaction kettle (2) are gradually heated to 500 +/-50 ℃ from normal temperature.
27. The transportable container system for processing organic solid waste material as recited in claim 26, wherein: the heating rate of the thermal cracking reaction kettle (2) is 2-3 ℃/min.
28. The transportable container system for processing organic solid waste material as recited in claim 1 or 21, wherein: and the materials in the crude oil rectifying kettle (47) are gradually heated to 200-350 ℃ from normal temperature.
29. The transportable container system for processing organic solid waste material as recited in claim 28, wherein: and the materials in the crude oil rectifying kettle (47) are gradually heated to 290-300 ℃ from normal temperature.
30. The transportable container system for processing organic solid waste material as recited in claim 28, wherein: the heating rate of the crude oil rectifying kettle (47) is 1-1.5 ℃/min.
31. The transportable container system for processing organic solid waste material as recited in claim 5 or 21, wherein: the main oil suction pipeline in the oil suction pipeline (16) is parallel to the kettle body of the thermal cracking reaction kettle (2) or the crude oil rectifying kettle (47), a plurality of oil pipes vertical to the axis of the kettle body are arranged at the top of the kettle body of the thermal cracking reaction kettle (2) or the crude oil rectifying kettle (47), one end of each oil pipe is hermetically connected with the inner wall of the top of the thermal cracking reaction kettle (2) or the crude oil rectifying kettle (47), and the other end of each oil pipe is hermetically connected with the main oil suction pipeline of one oil suction pipeline (16) vertically connected with the corresponding oil pipe.
32. The transportable container system for processing organic solid waste material as recited in claim 5 or 21, wherein: the gas-water separation tank is characterized in that a separation tank medium air inlet (20) is formed in the upper portion of a shell of the gas-water separation tank (19), spiral downward spiral blades (21) are arranged on the inner wall of the shell, an axial center air outlet pipe (22) is vertically arranged in the inner cavity of the shell, an air outlet pipe inlet (23) of the axial center air outlet pipe (22) is formed in the bottom of the inner cavity of the shell, and a medium air outlet (24) of the axial center air outlet pipe (22) is formed in the top of the shell of the gas.
33. The transportable container system for processing organic solid waste material as recited in claim 5 or 21, wherein: and a centrifugal draught fan (28) is arranged at the inlet side of an air inlet header pipe (29) at the air inlet side of the air-cooled box type condenser (30), or the centrifugal draught fan (28) is arranged on a crude oil outlet pipeline (34) at the oil outlet side of the air-cooled box type condenser (30).
34. The transportable container system for processing organic solid waste material as recited in claim 33, wherein: the centrifugal induced draft fan (28) is made of high-temperature resistant stainless steel.
35. The transportable container system for processing organic solid waste material as recited in claim 5 or 21, wherein: the air-cooled box type condenser (30) is arranged on a top plate outside the top of the corresponding thermal cracking container (45) or the refining container (60).
36. The transportable container system for processing organic solid waste material as recited in claim 35, wherein: the air-cooled box type condenser (30) comprises one or more shell-and-tube condensers (31) and one or more air coolers (32), wherein the shell-and-tube condensers (31) are dividing wall type heat exchangers taking the wall surfaces of tube bundles enclosed in a shell as heat transfer surfaces; the air cooler (32) is arranged at the top of the air-cooled box type condenser (30).
37. The transportable container system for processing organic solid waste material as recited in claim 35, wherein: when the air-cooled box type condenser (30) is used for the thermal cracking system (1), a crude oil outlet pipeline (34) of the air-cooled box type condenser (30) is connected with a crude oil inlet of a crude oil storage tank (35); when the air-cooled box type condenser (30) is used for a crude oil refining system (46), an oil outlet pipeline (53) of the air-cooled box type condenser (30) is connected with an inlet of the duplex filter.
38. The transportable container system for processing organic solid waste material as recited in claim 35, wherein: the air-cooled box type condenser (30) is provided with a condenser exhaust pipe (33) for exhausting non-condensable gas in oil gas.
39. The transportable container system for processing organic solid waste material as recited in any one of claims 1, 5 or 21, wherein: the thermal cracking system (1) and the crude oil refining system (46) are both provided with ventilation systems.
40. The transportable container system for processing organic solid waste material as recited in claim 39, wherein: the ventilation system comprises a directional cooling induced fan (37), a box wall negative pressure radiating fan (41) and a top negative pressure radiating fan (42), wherein the directional cooling induced fan (37) is arranged at the lower part of the rear end wall of the corresponding container, the box wall negative pressure radiating fan (41) is arranged at the upper side of the directional cooling induced fan (37), and the top negative pressure radiating fan (42) is arranged at the top plate outside the corresponding container.
41. The transportable container system for processing organic solid waste material as recited in claim 39, wherein: the ventilation system comprises a control cabinet bottom air inlet (38) and a control cabinet side air inlet (39) which are arranged on the corresponding control cabinet, when the ventilation system is used, the control cabinet absorbs cold air from the control cabinet bottom air inlet (38) and the control cabinet side air inlet (39), and heat emitted by the control cabinet during working is discharged into the corresponding container through a direct-exhaust air duct (40) arranged at the top of the control cabinet.
42. The transportable container system for processing organic solid waste material as recited in claim 39, wherein: the thermal cracking reaction kettle (2) and the crude oil rectification kettle (47) are cooled by a ventilation system, and the cooling rate is 4-5 ℃/min.
43. The transportable container system for processing organic solid waste material as recited in claim 42, wherein: when keeping ventilation system and centrifugal draught fan (28) continuous work in the container, thermal cracking cauldron feed gate (3) and the last semi-circular door of thermal cracking cauldron rear end door (4) of thermal cracking reation kettle (2) open the cooperation aeration cooling when the cauldron internal residual temperature falls to 200 ℃.
44. The transportable container system for processing organic solid waste material as recited in claim 42, wherein: when keeping the ventilation system and the centrifugal draught fan (28) in the container to work continuously, the front and rear end doors of the crude oil rectifying kettle (47) are opened to match with ventilation and cooling when the residual temperature in the kettle is reduced to 120 ℃.
45. The transportable container system for processing organic solid waste material as recited in claim 21, wherein: the duplex filter comprises a first-joint pre-filter (54) and a second-joint fine filter (56), an oil pump (55) is arranged on a pipeline between the pre-filter (54) and the fine filter (56), and the oil pump (55) is also arranged on a pipeline behind the fine filter (56).
46. The transportable container system for processing organic solid waste material as recited in claim 45, wherein: the filtering precision of a filter element adopted by the pre-filter (54) is 50-200 mu m.
47. The transportable container system for processing organic solid waste material as recited in claim 45, wherein: the filtering precision of a filter element adopted by the fine filter (56) is 5-40 mu m.
48. The transportable container system for processing organic solid waste material as recited in claim 1 or 21, wherein: and a high-temperature-resistant radar liquid level meter (52) is arranged at the top of the crude oil rectifying kettle (47).
49. The transportable container system for processing organic solid waste material as recited in claim 1 or 2, wherein: an electromagnetic variable frequency heating control cabinet (14) for controlling an electromagnetic heating sleeve (13) in thermal cracking operation equipment, a thermal cracking PLC control cabinet (44) for controlling other thermal cracking operation equipment and a thermal cracking safety alarm system (43) for monitoring abnormity of the thermal cracking operation equipment are arranged in the thermal cracking container (45).
50. The transportable container system for processing organic solid waste material as recited in claim 1 or 3, wherein: an electromagnetic variable frequency heating control cabinet (14) for controlling an electromagnetic heating sleeve (13) in refining operation equipment, a refining PLC control cabinet (59) for controlling other refining operation equipment and refining safety alarm equipment (58) for monitoring abnormity of the refining operation equipment are arranged in the refining container (60).
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CN113355116A (en) * 2021-06-28 2021-09-07 胡进 System for treating and recycling composite material
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