CN109735353A - A kind of organic dangerous waste low temperature oxygen-free pyrolytic process - Google Patents
A kind of organic dangerous waste low temperature oxygen-free pyrolytic process Download PDFInfo
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- CN109735353A CN109735353A CN201811567856.1A CN201811567856A CN109735353A CN 109735353 A CN109735353 A CN 109735353A CN 201811567856 A CN201811567856 A CN 201811567856A CN 109735353 A CN109735353 A CN 109735353A
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Abstract
The invention discloses a kind of organic dangerous waste low temperature oxygen-free pyrolytic processes, first, material enters carbide furnace after pretreatment, and adjust distribution of the material in carbide furnace, then, the material in carbide furnace is gradually heated by combustion chamber, the pyrolysis gas that material pyrolysis generates, which enters, divides gas bag, pass through cooling, wash laggard hearth combustion, the material being pyrolyzed becomes breeze, finally, there is no pyrolysis gas generation to carbide furnace, stop heating, after carbide furnace gradually cools down, breeze is discharged, the present invention is handled organic dangerous waste material by organic dangerous waste low temperature oxygen-free pyrolytic process, dangerous waste harmless treatment efficiency and low temperature oxygen-free pyrolysis recycling value-added content of product can be improved, make up the deficiency of existing organic dangerous waste processing technology field, a kind of safety and environmental protection is provided, the effect that is carbonized is good, the organic dangerous waste pyrolysis work for being carbonized high-efficient Skill.
Description
Technical field
The present invention relates to organic dangerous waste processing technology field more particularly to a kind of organic dangerous waste low temperature oxygen-free pyrolytic processes.
This technique can dispose the production of the industries such as source petrochemical industry, electronics processing, fine chemistry industry, pharmacy, machine-building and environment protection treating
Raw pharmaceutical wastes (HW02), drug (HW03), pesticide waste (HW04), timber preservative waste (HW05), useless have useless drug
Solvent and waste containing organic solvent (HW06), waste mineral oil and waste containing mineral oil (HW08), oil/water, hydrocarbon/aqueous mixtures or
Emulsion (HW09), smart (steaming) evaporate residue (HW11), coating, ink, pigment and similar products manufacture (HW12), organic resin class
Waste (HW13), photosensitive material waste (HW16), waste containing phenol (HW39), ether-containing waste (HW40), organohalogen compounds waste
(HW45), the organic hazardous waste of the classifications such as other wastes (HW49), catalyst waste (HW50).
Background technique
Organic dangerous waste refer to be included in National Hazard waste register or according to the hazardous waste judging standard of national regulation and
The waste with hazard property of discrimination method identification.Hazardous waste has toxicity, inflammability, explosivity, corrosivity, chemistry
Reactivity or infectiousness can constitute ecological environment and human health and seriously endanger.
Organic dangerous waste can even seriously affect environment caused by human body because of it, thus must deal carefully with disposition safely, mesh
The preceding facility to the processing of organic dangerous waste mainly includes crusher, charger, carbide furnace, cooling bay, oil water separator, cyclone dust removal
Machine, alkali cleaning equipment, UV cleaning equipment etc., but existing carbide furnace to organic dangerous waste carry out high temperature cabonization when, organic dangerous waste
It can be adhered to the bottom of carbide furnace, and influence carbonization effect, lead to the low efficiency that is carbonized.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and propose a kind of innoxious place of raising dangerous waste
Manage organic dangerous waste low temperature oxygen-free pyrolytic process of efficiency and low temperature oxygen-free pyrolysis recycling added value of product.
To achieve the goals above, present invention employs following technical solutions:
A kind of organic dangerous waste low temperature oxygen-free pyrolytic process, specifically includes the following steps:
S1, material enter carbide furnace after pretreatment, and adjust distribution of the material in carbide furnace；
S2 gradually heats the material in carbide furnace by combustion chamber, and the pyrolysis gas that material pyrolysis generates, which enters, divides gas
Packet, by cooling, the laggard hearth combustion of washing, the material being pyrolyzed becomes breeze；
S3 stops heating until carbide furnace does not have pyrolysis gas generation, and after carbide furnace gradually cools down, breeze is discharged.
Preferably, in S1, material is sorted, is crushed pretreatment, carries out classification sorting according to the property of material,
It is crushed using double rod crushers, big part dangerous waste object is broken into the fritter dangerous waste material of 3-10cm, by sorting, being crushed
Material sorts out the classification that pyrolysis generates breeze.
Preferably, in S1, carbide furnace is imported by feed screw by pretreated material, just by carbide furnace
The material that reversion is adjusted into carbide furnace is uniformly distributed.
Preferably, in S2, combustion chamber generates heat, pyrolysis temperature of the material in carbide furnace using combustion of natural gas
Degree is 300-600 DEG C.
Preferably, in S2, combustion chamber initially preheats 1h to carbide furnace, then can not coagulate with what is generated in pyrolysis
Gas continues to heat.
Preferably, in S2, when the in-furnace temperature that is carbonized reaches 90 DEG C, the moisture in material is gradually with the shape of steam
Formula is evaporated from vent valve, when the in-furnace temperature that is carbonized reaches 200 DEG C or more, will have oil gas generation, initial stage is mainly light group
Divide and is thermal decomposited out.
Preferably, in S3, the vapor and pyrolysis gas in carbide furnace are by dividing gas bag by a part of heavy oil point
From getting off, enter Residual Oil Tank through overflow passage, remaining vapor, middle light oil and non-condensable gas then enter spray coil condensation
Device is cooled down again, and oil water separator is entered after condensation.
Preferably, in S3, the non-condensable gas that carbide furnace is pyrolyzed returns after firsts and seconds water seal
To combustion chamber, non-condensable gas is burnt in the combustion chamber to carbide furnace heat supply.
Preferably, in S3, the flue gas that combustion chamber generates enters cooler through flue path, second level strong atomizing takes off
Sulphur deduster, cyclone dust collectors and steam-water separator carry out spray desulfurization, dedusting and steam-water separation, finally enter UV Industrial cleaning facility
Device passes through smoke stack emission after activated carbon adsorption device processing.
Preferably, in S3, combustion chamber is closed after carbide furnace does not have pyrolysis gas generation, when carbonization in-furnace temperature
When dropping to 60 DEG C or less, opens carbide furnace and breeze is discharged, general breeze send inorganic dangerous waste system to handle, and saliferous breeze send salt manufacturing
Qualified second level Nacl is made in workshop.
Compared with prior art, the invention has the following advantages:
The present invention after broken crusher machine by sending the organic dangerous waste ontology of big part into charger, and charger is by organic dangerous waste
Ontology is sent into carbide furnace and is carbonized, and the initial fuel that light diesel fuel can be used as carbide furnace combustion chamber provides heat for carbide furnace
Can, the breeze that carbide furnace generates can be transported to inorganic dangerous waste system, and the pyrolysis gas that carbide furnace generates enters and divides gas bag, can will
High-temperature oil gas and heavy oil are separated, and high-temperature oil gas is condensed by cooling bay, can by fixed gas and oil water mixture into
Row separation, fixed gas can be used as fuel and be conveyed to carbonization furnace hearth burning, be carried out using oil water separator to oil water mixture
Oil water mixture can be divided into water phase and oily phase by separation, and water phase can form W2-2 waste water, and heavy oil and oil can mutually be formed
L2-1 pyrolysis oil, in addition the flue gas of carbide furnace combustion chambers burn successively through supercooling, cyclone dust removal, second level alkali cleaning, gas-liquid separation,
UV purification, activated carbon adsorption, eventually form G2-2 combustion tail gas.
The present invention is handled organic dangerous waste material by organic dangerous waste low temperature oxygen-free pyrolytic process, and dangerous waste can be improved
Harmless treatment efficiency and low temperature oxygen-free pyrolysis recycling value-added content of product, make up existing organic dangerous waste processing technology field not
Foot provides organic dangerous waste pyrolytic process that a kind of safety and environmental protection, carbonization effect is good, carbonization is high-efficient.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of organic dangerous waste low temperature oxygen-free pyrolytic process of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
The solid breeze quality that organic dangerous waste low temperature pyrogenation obtains is different and different with the property of material, according to the property of material
Matter, the organic dangerous waste of setting two parts are pyrolyzed production line, and a part of organic dangerous waste pyrolysis production line is disposed for abraum salt, and a part has
Machine dangerous waste is pyrolyzed production line and is used for other organic Waste disposals.
As shown in Fig. 1, a kind of organic dangerous waste low temperature oxygen-free pyrolytic process, specifically includes the following steps:
S1, material enter carbide furnace after pretreatment, and adjust distribution of the material in carbide furnace；
In S1, material is sorted, is crushed pretreatment, classification sorting is carried out according to the property of material, using double rod crushers
It is crushed, big part dangerous waste object is broken into the fritter dangerous waste material of 3-10cm, is generally divided into abraum salt class dangerous waste and organic
Dangerous waste is sorted out the classification that pyrolysis generates breeze by sorting, broken material, is sent by pretreated material by feed screw
Corresponding carbide furnace, carbide furnace can be controlled by control room forward-reverse switch and be turned to, and adjust material distribution of the raw material in furnace,
Material total amount is controlled the 2/3 of carbide furnace total measurement (volume) hereinafter, closing feeding seal door.
S2 gradually heats the material in carbide furnace by combustion chamber, and the pyrolysis gas that material pyrolysis generates enters
Divide gas bag, by cooling, the laggard hearth combustion of washing, the material being pyrolyzed becomes breeze；
In S2, the bottom of carbide furnace is arranged in combustion chamber, by the way that multiple combustion chambers are arranged in the bottom of carbide furnace, to ensure to have
The pyrolysis temperature of machine dangerous waste material, combustion chamber generate heat using combustion of natural gas, and pyrolysis temperature of the material in carbide furnace is
300-600 DEG C, combustion chamber initially preheats 1h to carbide furnace, and vapor is discharged, then with the non-condensable gas generated in pyrolysis
Continue to heat, when the in-furnace temperature that is carbonized reaches 90 DEG C, the moisture in material is gradually steamed from vent valve as a vapor
It issues, when the temperature in carbide furnace reaches 115 DEG C or more, closes moisture discharge valve, when carbonization in-furnace temperature reaches 200
DEG C or more when, will have oil gas generation, initial stage is mainly that light component is thermal decomposited out.
S3 stops heating until carbide furnace does not have pyrolysis gas generation, and after carbide furnace gradually cools down, breeze is discharged.
In S3, the vapor in carbide furnace is separated a part of heavy oil by knockout tower with pyrolysis gas, through overflowing
Flow tube road enters Residual Oil Tank, remaining vapor, middle light oil and non-condensable gas, which then enter spray coil condenser, to carry out further
Secondary cooling, enters oil water separator after condensation, the non-condensable gas that carbide furnace is pyrolyzed returns after firsts and seconds water seal
Return to hearth combustion, non-condensable gas in furnace chamber inner combustion to carbide furnace heat supply, the flue gas that combustion chamber generates through flue path into
Enter cooler, second level strong atomizing desulfurizing dust-collector, cyclone dust collectors and steam-water separator carry out spray desulfurization, dedusting and carbonated drink
Separation finally enters UV Industrial cleaning facility device, by the smoke stack emission of 50m after activated carbon adsorption device processing, when carbide furnace does not have
Pyrolysis gas closes combustion chamber after generating, and stops heating, cools down carbide furnace gradually, when in carbide furnace temperature drop to 60 DEG C with
When lower, breeze by slag notch through automatic emptying machine discharging, at this point, the material in carbide furnace passes through low temperature oxygen-free pyrolysis processing shape
At breeze, general breeze send inorganic dangerous waste system to be used as brick-making raw material based on C element；Saliferous breeze send essence based on NaCl
The further purification processes of salt making system.
The water in the mating pond of spray coil condenser is recycled after cooling tower cooler.Atomisation tower is recycled by water tank and is supplied
Water.Water is supplemented in technique to be supplied by pump house, it, can manual control supplement when system is run since water used is few.Equipment is given
The principle of cycling use of water is adhered in draining, guarantees that self-circulation water consumption, a small amount of water that evaporates are supplied by system water.
For the present invention by the way that the organic dangerous waste ontology of big part is sent into charger after broken crusher machine, charger will be organic
Dangerous waste ontology is sent into carbide furnace and is carbonized, and the initial fuel that light diesel fuel can be used as carbide furnace combustion chamber provides for carbide furnace
Thermal energy, the breeze that carbide furnace generates can be transported to inorganic dangerous waste system, and the pyrolysis gas that carbide furnace generates enters and divides gas bag, can be with
High-temperature oil gas and heavy oil are separated, high-temperature oil gas is condensed by cooling bay, can be by fixed gas and oil water mixture
Separated, fixed gas can be used as fuel be conveyed to carbonization furnace hearth burning, using oil water separator to oil water mixture into
Oil water mixture can be divided into water phase and oily phase by row separation, and water phase can form W2-2 waste water, and heavy oil and oil can mutually be formed
L2-1 pyrolysis oil, in addition the flue gas of carbide furnace combustion chambers burn successively through supercooling, cyclone dust removal, second level alkali cleaning, gas-liquid separation,
UV purification, activated carbon adsorption, eventually form G2-2 combustion tail gas.
The present invention is handled organic dangerous waste material by organic dangerous waste low temperature oxygen-free pyrolytic process, and dangerous waste can be improved
Harmless treatment efficiency and low temperature oxygen-free pyrolysis recycling value-added content of product, make up existing organic dangerous waste processing technology field not
Foot provides organic dangerous waste pyrolytic process that a kind of safety and environmental protection, carbonization effect is good, carbonization is high-efficient.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process, which comprises the following steps:
S1, material enter carbide furnace after pretreatment, and adjust distribution of the material in carbide furnace；
S2 gradually heats the material in carbide furnace by combustion chamber, and the pyrolysis gas that material pyrolysis generates, which enters, divides gas
Packet, by cooling, the laggard hearth combustion of washing, the material being pyrolyzed becomes breeze；
S3 stops heating until carbide furnace does not have pyrolysis gas generation, and after carbide furnace gradually cools down, breeze is discharged.
2. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 1, which is characterized in that in S1, material
It is sorted, broken pretreatment, the classification that pyrolysis generates breeze is sorted out by sorting, broken material.
3. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 2, which is characterized in that in S1, pass through
Pretreated material imports carbide furnace by feed screw, is uniformly divided by the material that carbide furnace positive and negative rotation is adjusted into carbide furnace
Cloth.
4. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 3, which is characterized in that in S2, burning
Room generates heat using combustion of natural gas, and pyrolysis temperature of the material in carbide furnace is 300-600 DEG C.
5. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 4, which is characterized in that in S2, burning
Room initially preheats 1h to carbide furnace, then continues to heat with the non-condensable gas generated in pyrolysis.
6. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 5, which is characterized in that in S2, work as carbon
When change in-furnace temperature reaches 90 DEG C, the moisture in material is gradually evaporated from vent valve as a vapor, when in carbide furnace
When temperature reaches 200 DEG C or more, there will be oil gas generation, initial stage is mainly that light component is thermal decomposited out.
7. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 6, which is characterized in that in S3, carbonization
Vapor and pyrolysis gas in furnace enter Residual Oil Tank through overflow passage by dividing gas bag to separate a part of heavy oil,
Remaining vapor, middle light oil and non-condensable gas then enter spray coil condenser and are cooled down again, and oil is entered after condensation
Separator.
8. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 7, which is characterized in that in S3, carbonization
The non-condensable gas that furnace is pyrolyzed returns to combustion chamber after firsts and seconds water seal, and non-condensable gas fires in the combustion chamber
It burns to carbide furnace heat supply.
9. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 8, which is characterized in that in S3, burning
The flue gas that room generates enters cooler, second level strong atomizing desulfurizing dust-collector, cyclone dust collectors and steam-water separation through flue path
Device carries out spray desulfurization, dedusting and steam-water separation, finally enters UV Industrial cleaning facility device, passes through cigarette after activated carbon adsorption device processing
Chimney discharge.
10. a kind of organic dangerous waste low temperature oxygen-free pyrolytic process according to claim 9, which is characterized in that in S3, work as carbon
Change furnace closes combustion chamber after not having pyrolysis gas generation, when temperature drops to 60 DEG C or less in carbide furnace, opens carbonization fire grate
Breeze out, general breeze send inorganic dangerous waste system to handle, and saliferous breeze send salt manufacturing workshop to handle.
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Cited By (5)
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| CN113429990A (en) * | 2021-06-22 | 2021-09-24 | 浙江宜可欧环保科技有限公司 | Method for treating organic pollutants by combining anaerobic pyrolysis and aerobic oxidation |
| CN113477662A (en) * | 2021-06-29 | 2021-10-08 | 上海固类特环境科技有限公司 | Method for low-temperature pyrolysis of organic solid waste and generating device thereof |
| CN114015464A (en) * | 2021-10-22 | 2022-02-08 | 广州市杰人环保科技有限公司 | Low-temperature static high-molecular industrial and agricultural waste cracking method |
| CN114410325A (en) * | 2022-02-19 | 2022-04-29 | 深圳好众科技投资有限公司 | Resourceful treatment process and device for organic waste |
| CN114410322A (en) * | 2022-01-21 | 2022-04-29 | 广东国禹装备有限公司 | Organic solid waste disposal process |
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