CN106439843A - Harmless treatment process for unrecyclable wastes in petrochemical industry - Google Patents

Harmless treatment process for unrecyclable wastes in petrochemical industry Download PDF

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Publication number
CN106439843A
CN106439843A CN201610812059.XA CN201610812059A CN106439843A CN 106439843 A CN106439843 A CN 106439843A CN 201610812059 A CN201610812059 A CN 201610812059A CN 106439843 A CN106439843 A CN 106439843A
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China
Prior art keywords
waste
wastes
gas
burning
flue gas
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CN201610812059.XA
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CN106439843B (en
Inventor
张梅荪
王涛
冯海涛
王红梅
韦小平
陈昌林
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Nanjing Zhongte Chemical Power Equipment Co Ltd
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Nanjing Zhongte Chemical Power Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/20—Dewatering by mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/20—Sulfur; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/40—Intercepting solids by cyclones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

Abstract

The invention discloses a harmless treatment process for unrecyclable wastes in the petrochemical industry, and the unrecyclable wastes are a muddy solid-liquid mixture. The harmless treatment process comprises the following steps: (1) dehydrating; (2) drying; (3) incinerating the wastes; and (4) purifying flue gas. The harmless treatment process adopting the abovementioned technical scheme has the following advantages: various pollutants of a petrochemical enterprise are overall considered, wastes are used for treating wastes, and the wastes are uniformly treated and comprehensively controlled, thus the emission of the pollutants is furthest reduced; for example, waste gases are combusted in an incinerator, subjected to desulfurization-denitrification purification and then emitted at present instead of the original way of being combusted through a torch and then directly emitted to the atmosphere; various solid hazardous wastes needing landfill treatment are reduced and subjected to harmless treatment through incineration treatment, thus the expense of the landfill treatment is reduced; steam is produced by virtue of heat energy generated during an incineration process of solid wastes, liquid wastes and waste gases to generate benefits; and the harmless treatment process is short in treatment flow, high in treatment efficiency, low in investment, and low in running expense.

Description

Petrochemical industry not recovering discarded material harmless treatment process
Technical field
The present invention relates to environmental technology field, especially relate to a kind of by petrochemical enterprise not recovering discarded material enter The technique of row Harmless and Comprehensive Disposal.
Background technology
In petroleum chemical enterprise's production process, inevitably produce expendable solid waste, waste liquid and give up Gas.In the present circumstance, solid waste, waste liquid and waste gas are all to process respectively.Such as adopt burning method respectively to solid Garbage and liquid debris do in innoxious decrement disposal process, need to consume in processing procedure substantial amounts of natural gas or its His fuel gas.
There are a lot of toxic and harmfuls in another aspect petroleum chemical enterprise, usually contains hydrogen, hydrogen sulfide, carbon monoxide etc. poisonous Harmful gass, this portion gas is typically sent to direct emission treatment after torch burning, serious environment pollution.
Present this processing mode not only consumes the substantial amounts of energy, also can produce new pollution, increases environmental protection equipment Disposal ability, thus increasing the investment of environmental protection project and operation cost further, therefore, explore at a kind of rational pollutant Science and engineering skill, had both reduced pollutant emission, again reduce environmental protection equipment operation cost be in field of Environment Protection one allow people headache ask Topic.
Content of the invention
The technical problem to be solved in the present invention is to provide that a kind of operating cost is low, pollutant emission is few, processes efficient stone Oiling work not recovering discarded material harmless treatment process.
For solving above-mentioned technical problem, the technical solution used in the present invention is, recovering discarded material is not no for this petrochemical industry In evilization handling process, recovering discarded material is not the solidliquid mixture in pureed, comprises the following steps：
(1) it is dehydrated：The not recovering discarded material mud that conveying is come passes through Centrifugal sludge dehydration machine by moisture removal, Form aqueous 85% wet mud；Wet mud after dehydration enters sludge storage bin, and the moisture of removing enters sewage treatment plant and processes；
(2) it is dried：Enter wet mud delivery pump from sludge storage bin wet mud out through wet mud discharging screw machine fixed Amount pressurization pumps into blade drier, and blade dryer adopts 1.4MPa, and 285 DEG C of steam are as heat transferring medium, turning by blade Move and make materials overturning, stirring, constantly update heating interface, wet mud is contacted with fuselage and blade, is sufficiently heated, and makes material institute The surface moisture evaporation containing；Meanwhile, wet mud conveys to discharging opening direction with the helical trajectory that is rotated into of paddle shaft, ultimately becomes Dewatered sludge discharges blade drier；Steam required for blade drier is provided by the secondary incinerator of subsequent handling；Heat exchange is steamed The condensate pump that vapour condensation produces is delivered to softening water tank and is recycled；The carrier gas producing during drying sludge is through cyclone dust removal After device dedusting, condenser condensation, combustion air is used as by carrier gas blower fan and send secondary incinerator to burn purified treatment, condenser is cold Coagulating the sewage getting off send Sewage Plant to process；
(3) castoff burning：Burn two stages including rotary kiln incineration and secondary incinerator, solid waste enters back Rotary kiln burns, and the flue gas that rotary kiln produces and liquid debris, waste gas enter incinerator burning disposal；
Wherein, the rotary kiln incineration stage is that the dewatered sludge that will obtain after step (2) is processed and several other are consolidated Body garbage passes through star-like measurer, spiral propeller sends into rotary furnace, using biogas, torch gas with burning in rotary furnace, controls Torch tolerance processed maintains about 600 DEG C of ignition temperature it is ensured that the stable burning of biochemical sludge and other solid combustible wastes, simultaneously Prevent the generation of two English, the flue gas after burning enters next link secondary incinerator after cyclone dust extractor dedusting and does into one Step purified treatment, send landfill yard to process after burning remaining lime-ash packing；
In two stages, the first stage processes rotary kiln and produces flue gas, several liquid debris incinerator burning phase And several waste gas, pressurizeed by pump, send into one section of secondary incinerator, wherein, 1000 DEG C of left sides of secondary incinerator temperature control The right side, flue gas flow rate 2～4m/s, the time of staying is more than 2s；The flue gas that one section of burning of secondary incinerator produces enters secondary incinerator Two-stage nitration, this flue gas and flash steam, biogas and hydrogen mixed combustion, do further purified treatment；
(4) gas cleaning：The flue gas obtaining after burning in step (3) carries out purified treatment, sequentially passes through gas cleaning Tower, regenerating active carbon tower and bag-type dust；Wherein, flue gas passes through purifying column from bottom to top, and activated carbon passes through purification Tower, the flue gas entering purifying column is mixed with ammonia；Pass through bag-type dust through the flue gas of activated carbon adsorption again；The work of adsorption saturation Property charcoal discharge purifying column, by bucket machine enter regenerating active carbon tower, by tubular heat exchanger, be heated under anoxybiotic state 400-440 DEG C, the activated carbon after parsing conveys purifying column by bucket machine after discharging regenerator and recycles.
Technique scheme mainly includes four steps, wherein sludge dewatering step it is therefore an objective to dirt by moisture content 98% Mud (being shown in Table 1) is dehydrated, and makes sewage moisture content drop to 85%；Drying sludge is it is therefore an objective to by aqueous 85% drying sludge, make aqueous Rate is reduced to 40%；Castoff burning, main inclusion rotary kiln and two stages of incinerator, solid waste enters rotary kiln and burns Burn, the flue gas that rotary kiln produces and liquid debris, waste gas enter incinerator burning disposal；Gas cleaning, including activated carbon Desulfuring and denitrifying apparatus, bag-type dust and SO2 sulphuric acid plant.The flue gas that incinerator produces is filled by active carbon desulfurization denitrification integral After putting desulphurization denitration, enter bag-type dust and enter air, the SO that active carbon desulfurization parses2Enter sulphuric acid plant and produce 98% Concentrated sulphuric acid.
Further it is improved by, other solid waste several in rotary kiln incineration stage in described step (3) It is that spent resin, waste oil mud, waste active carbon, useless filler, oily waste, butadiene polymer, PTA trench material and oil-containing are discarded Thing；Wherein said spent resin is the mixture of polystyrene and polyacrylic acid or divinylbenzene.
Further it is improved by, in incinerator burning phase in described step (3), the several liquid of first stage gives up Gurry is spent organic solvent, the ammoniacal liquor that gives up, useless formaldehyde, process waste liquor, DMF waste liquid, chemical examination waste liquid, scum silica frost, useless tar, butadiene give up Tar and waste mineral oil；Several waste gas is unqualified sour gas and sour gas.It is an advantage of the current invention that：
1st, the various pollutant of petroleum chemical enterprise are considered as a whole, the treatment of wastes with processes of wastes against one another, be uniformly processed, comprehensive control, to greatest extent The discharge reducing pollutant；It is such as waste gas, originally after torch burning, directly discharge air, now in incinerator After burning, discharge after being purified by desulphurization denitration；
2nd, pass through burning disposal it would be desirable to the various solid hazardous waste minimizings of landfill disposal are innoxious, thus dropping The low expense of landfill disposal；
3rd, produce steam thus producing using the heat energy producing during solid waste, liquid debris and burned waste gas Benefit；
4th, handling process is short, and treatment effeciency is high, and investment is little, and operating cost is low.
Brief description
Further describe with embodiments of the present invention below in conjunction with the accompanying drawings：
Fig. 1 is petrochemical industry of the present invention not recovering discarded material harmless treatment process simple process frame diagram.
Specific embodiment
As shown in figure 1, being petrochemical industry of the present invention not recovering discarded material harmless treatment process simple process frame diagram, Recovering discarded material is not the solidliquid mixture in pureed, comprises the following steps：(1) dehydration, (2) drying, (3) castoff burning (4) four steps of gas cleaning.
The garbage that can not be recovered as that the present invention is processed includes solid waste, liquid debris and waste gas three major types, main Including：
1st, the mud that water process produces, refers to following table：
Table 1：Sewage plant sludge tables of data
Sequence number Waste title Biowaste origin Quantity (t/a) Main component and content Remarks
1 Mud Sewage Plant 164997.5 Water 98%, solid content 2%
Total 164997.5
2nd, solid hazardous waste, refers to following table：
Table 2：Solid dangerous waste and composition catalog
3rd, liquid debris
Table 3 dangerous liquid wastes and composition catalog
4th, waste gas
Table 4 waste gas and its composition catalog
Specifically：The main purpose of sludge dewatering operation is that next for Sewage Plant pumping aqueous 98% mud is passed through centrifugation Formula sludge dewatering equipment, by moisture removal, forms aqueous 85% wet mud, is that next process drying sludge is prepared；After dehydration Wet mud enter sludge storage bin, the moisture of removing enters sewage treatment plant and processes；The main dehydration equipment of this operation be two from Core type sludge dewatering equipment, separate unit water separation capability be 12.5t/h, year run time 8000h.
The main purpose of drying sludge operation is that the wet mud producing sludge dewatering flow process is further dried, moisture content 85% wet mud becomes the dewatered sludge of moisture content 40%, is that next step operation castoff burning is prepared；Go out from sludge storage bin The wet mud come enters wet mud delivery pump through wet mud discharging screw machine, and quantitatively pressurization pumps into blade drier, and blade is dried Machine adopts 1.4MPa, and 285 DEG C, as heat transferring medium, make materials overturning, stirring by the rotation of blade, constantly update heating and are situated between Face, wet mud is contacted with device body and blade, is sufficiently heated, and so that the surface moisture contained by material is evaporated.Meanwhile, mud is with blade The helical trajectory that is rotated into of axle conveys to discharging opening direction, ultimately becomes dewatered sludge and discharges blade drier.Blade drier institute The steam needing is provided by the secondary incinerator of subsequent handling.The condensate pump that the condensation of heat exchange steam produces is delivered to softening water tank and is returned Receive and utilize；Cyclone dust extractor dedusting was entered in the carrier gas producing during drying sludge, after condenser condensation, was made by carrier gas blower fan Secondary incinerator is sent to burn purified treatment for combustion air, the sewage that condenser condenses out send Sewage Plant to process.This operation master Want drying equipment to be two blade dryers, separate unit disposal ability be 0.8t/h, year run time 8000h.
Castoff burning operation includes two links：Rotary kiln incineration and secondary incinerator burn.
Rotary kiln incineration link mainly process drying sludge operation generation dewatered sludge and table 2 listed by various solids give up Gurry.Solid waste passes through star-like measurer, spiral propeller sends into rotary furnace, using biogas, torch gas in rotary furnace With burning, torch tolerance is controlled to maintain about 600 DEG C of ignition temperature it is ensured that the stable combustion of biochemical sludge and other solid combustible wastes Burn, prevent the generation of two English simultaneously.Flue gas after burning enters after cyclone dust extractor dedusting that next link is secondary to burn Burn stove and do further purified treatment.Landfill yard is sent to process after burning remaining lime-ash packing.
Secondary incinerator utilizes waste gas, waste liquid, scum silica frost, the flue gas of torch gas disposal rotary kiln discharge, coal gasification discharge acid Property gas.Secondary incinerator is divided into two sections, one section of process rotary kiln produces the 1st in flue gas, the liquid debris in table 3 and table 4, 2 contain H2The waste gas of S, liquid debris are pressurizeed by pump, send into one section of secondary incinerator.Secondary incinerator temperature control 1000 DEG C about, make hazardous medium in flue gas completely innoxious, prevent two English and NO simultaneouslyXGeneration, one section of flue gas flow rate 2～ 4m/s, the time of staying is more than 2s.The flue gas that one section of burning of secondary incinerator produces enters secondary incinerator two-stage nitration, flue gas here With the 3rd, 4,5 waste gas mixed combustion in table 4, do further purified treatment.Purify burned flue gas, this pipe of funds, steaming Send out device, be down to 120 DEG C about through economizer, air preheater；Combustion air can be then the stench collected using sewage treatment plant Gas, the foul gass that drying sludge produces, after air hot pipe heat exchanger heat exchange, its temperature rises to 220 DEG C about, sends into back Rotary kiln incinerator and dual firing chamber are as combustion air.
Fume purifying processes main purpose is the NO in removing flue gasx、SO2, two English, heavy metal solid particulate matter Deng pollutant.Gas cleaning adopts activated carbon desulfurization by dry method, by column for smoke purification, regenerating active carbon tower, bag-type dust structure Become.Gas cleaning adopts the special coal mass active carbon of desulphurization denitration, and activated carbon adsorption includes purifying column and Analytic Tower；Purifying column adopts Adverse current bed is arranged, flue gas passes through purifying column from bottom to top, and activated carbon passes through purifying column, and purifying column can achieve that desulfurization takes off Nitre integral activated carbon is as removing NOxCarrier and catalyst, flue gas enter purifying column mix with ammonia, NOxAnd NH3In temperature At about 107～167 DEG C of degree, there is catalytic reaction in activated carbon surface, by NOxIt is decomposed into N2And H2O, or ammonium sulfate；In flue gas SO2Then it is tightly held by activated carbon by way of physical absorption and chemisorbed；Activated carbon is in adsorption treatment SO2And NOxWhile also Two English and the heavy metal in flue gas can be adsorbed.The activated carbon of adsorption saturation discharges purifying column, enters regeneration by bucket machine Tower, by tubular heat exchanger, is heated to 400-440 DEG C, the SO that activated carbon is adsorbed under anoxybiotic state2Desorbing discharges Come.Parsing produce containing 15% (volume ratio) SO2The sulfur recovery of parsing pneumatic transmission petroleum chemical enterprise do fuel gas disposal or make dense The sulphuric acid of degree 98%.Activated carbon after parsing discharges regenerator, is transported to purifying column by bucket machine and recycles.
Flue gas after activated carbon adsorption, qualified discharge after being processed by bag-type dust, discharge index is shown in Table 5, reaches Standard.
Table 5 dangerous waste incinerator Air Pollutant Emission limit value index
Ultimate principle, principal character and the advantage of the present invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not restricted to the described embodiments, the simply explanation present invention's described in above-described embodiment and description is former Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements Both fall within scope of the claimed invention, the present invention can be applied in Coal Chemical Industry and coal liquifaction industry.Application claims Protection domain is by appending claims and its equivalent thereof.

Claims (3)

1. a kind of petrochemical industry not recovering discarded material harmless treatment process, this not recovering discarded material be solid-liquid in pureed Mixture is it is characterised in that comprise the following steps：
(1) it is dehydrated：The not recovering discarded material mud that conveying is come passes through Centrifugal sludge dehydration machine by moisture removal, is formed Aqueous 85% wet mud；Wet mud after dehydration enters sludge storage bin, and the moisture of removing enters sewage treatment plant and processes；
(2) it is dried：Enter wet mud delivery pump from sludge storage bin wet mud out through wet mud discharging screw machine quantitatively to add Press pump enters blade drier, and blade dryer adopts 1.4MPa, and 285 DEG C of steam, as heat transferring medium, are made by the rotation of blade Materials overturning, stirring, constantly update heating interface, and wet mud is contacted with fuselage and blade, is sufficiently heated, makes contained by material Surface moisture evaporates；Meanwhile, wet mud conveys to discharging opening direction with the helical trajectory that is rotated into of paddle shaft, ultimately becomes dry dirt Mud discharges blade drier；Steam required for blade drier is provided by the secondary incinerator of subsequent handling；Heat exchange steam is cold The solidifying condensate pump producing is delivered to softening water tank and is recycled；The carrier gas producing during drying sludge removes through cyclone dust extractor After dirt, condenser condensation, combustion air is used as by carrier gas blower fan and send secondary incinerator to burn purified treatment, under condenser condensation The sewage coming send Sewage Plant to process；
(3) castoff burning：Burn two stages including rotary kiln incineration and secondary incinerator, solid waste enters rotary kiln Burn, the flue gas that rotary kiln produces and liquid debris, waste gas enter incinerator burning disposal；
Wherein, the rotary kiln incineration stage is the dewatered sludge obtaining and other solids several will to give up after step (2) is processed Gurry passes through star-like measurer, spiral propeller sends into rotary furnace, using biogas, torch gas with burning in rotary furnace, controls fire Torch tolerance maintains about 600 DEG C of ignition temperature it is ensured that the stable burning of biochemical sludge and other solid combustible wastes, prevents simultaneously The generation of two English, the flue gas after burning enter after cyclone dust extractor dedusting next link secondary incinerator do net further Change is processed, and send landfill yard to process after burning remaining lime-ash packing；
Incinerator burning phase in two stages, the first stage process rotary kiln produce flue gas, several liquid debris and Several waste gas, is pressurizeed by pump, sends into one section of secondary incinerator, wherein, 1000 DEG C about of secondary incinerator temperature control, cigarette Gas velocity 2～4m/s, the time of staying is more than 2s；The flue gas that one section of burning of secondary incinerator produces enters secondary incinerator two-stage nitration, This flue gas and flash steam, biogas and hydrogen mixed combustion, do further purified treatment；
(4) gas cleaning：The flue gas obtaining after burning in step (3) carries out purified treatment, sequentially passes through column for smoke purification, work Property charcoal regenerator and bag-type dust；Wherein, flue gas passes through purifying column from bottom to top, and activated carbon passes through purifying column, enters The flue gas entering purifying column is mixed with ammonia；Pass through bag-type dust through the flue gas of activated carbon adsorption again；The activated carbon of adsorption saturation Discharge purifying column, regenerating active carbon tower is entered by bucket machine, by tubular heat exchanger, under anoxybiotic state, is heated to 400- 440 DEG C, the activated carbon after parsing conveys purifying column by bucket machine after discharging regenerator and recycles.
2. petrochemical industry according to claim 1 not recovering discarded material harmless treatment process it is characterised in that in institute Other solid waste several stating the rotary kiln incineration stage in step (3) are spent resin, waste oil mud, waste active carbon, give up and fill out Material, oily waste, butadiene polymer, PTA trench material and oily waste；Wherein said spent resin is polystyrene and gathers Acrylic acid or the mixture of divinylbenzene.
3. petrochemical industry according to claim 1 not recovering discarded material harmless treatment process it is characterised in that described In incinerator burning phase in step (3), the several liquid debris of first stage are spent organic solvent, useless ammoniacal liquor, useless first Aldehyde, process waste liquor, DMF waste liquid, chemical examination waste liquid, scum silica frost, useless tar, the useless tar of butadiene and waste mineral oil；Several waste gas is Unqualified sour gas and sour gas.
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Cited By (6)

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CN107381995A (en) * 2017-09-19 2017-11-24 来江 A kind of oil-containing mud sand hazardous waste disposal system
CN107504492A (en) * 2017-09-25 2017-12-22 安徽马钢工程技术集团有限公司 A kind of industrial sludge, waste emulsified mixture slag and metallurgical grey joint processing system and its electrification technique
CN108745331A (en) * 2018-07-12 2018-11-06 中冶长天国际工程有限责任公司 A kind of novel absorbent charcoal Analytic Tower and activated carbon parsing technique
CN108954332A (en) * 2018-05-28 2018-12-07 温州市骐邦环保科技有限公司 A kind of environmental protection and energy saving garbage combustion device
CN109020093A (en) * 2018-09-25 2018-12-18 浙江绿保再生资源科技有限公司 A kind of waste circulation vein mode
CN112607936A (en) * 2020-11-26 2021-04-06 苏州聚隆环保科技有限公司 Sewage treatment process

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