CN109967489A - A kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system - Google Patents

Abstract

The invention discloses a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique technique and processing systems, wherein, which includes the following steps: the pretreatment system of the molding of (a) flying dust, danger residual waste, the broken screening of cullet；(b) metering weighing is conveyed to material system；(c) high-temperature plasma molten processing system；(d) microwave plasma dual firing chamber；(e) boiler and gas-to-gas heat exchanger cooling and dedusting system；(f) circulating fluid bed semi-drying method desulfurization depickling, absorption dioxin device；(g) depickling of venturi dry desulfurization, absorption dioxin device；(h) dedusting of ceramic fibre chimney filter deduster, desulphurization denitration, elimination dioxin device；(i) smoke evacuation system.The present invention has veritably accomplished more thoroughly volume reduction, innoxious, recycling treatment effect, can avoid causing secondary environmental pollution problem, day output is big, economical operation cost is lower, and working environment is safer, environmentally friendly.

Description

A kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system

Technical field

The present invention relates to hazardous waste process fields more particularly to a kind of high-temperature plasma melt process dangerous waste object to fly Ash, residue technique and system.

Background technique

Hazardous waste, which refers to, to be included in National Hazard waste register or is recognized according to the hazardous waste discrimination method of national regulation Fixed has the hazard properties such as toxic, explosivity, inflammability, corrosivity, chemical reactivity, infectiousness, radioactivity to environment Generate the substance of pollution.The discharge everywhere of hazardous waste and unreasonable disposition can all endanger people's health, and long-term accumulation continues Ecological environment but will seriously be destroyed.

At present on domestic and international market, high-temperature plasma body technique is for space flight, industry smelting, medical treatment, high-risk waste Flying dust, smashed electronic waste after the waste incineration in equal fields, the optimal nothing such as liquid or the toxic danger wastes of gaseous state Evilization, minimizing, disposal of resources means, advantage are that landfill and burning mode are incomparable.Specific manifestation are as follows: first, Plasma gasification technology can make organic matter be converted to synthesis gas, and inorganic matter forms lime-ash；The second, high-temperature plasma body technique The generation and discharge of dioxin can thoroughly be eliminated；Third, high-temperature plasma body technique can make the secondary treatment shape of flying dust At vitreum qualified discharge；4th, the vitreum that inorganic matter is formed is used for glass cermaic plate, construction material or the city of scraper slagging machine The recycling in the fields such as city's sculpture recycles, and realizes the environment-friendly type disposition mode that zero padding is buried.

Disposition of the plasma to solid dangerous waste object probably uses following processing method: one is plasma oxidations, combustion Burning or plasma glass.Another kind is plasma pyrolysis, and flammable solid waste can be made to gasify under reducing atmosphere, It is reassembled as other gases.Another is that pulsed arc generates shock wave, for solid waste to be decomposed to and is separated into metal, modeling Material, organic matter etc..Domestic rubbish disposal mode specific to community, small towns is: firstly, generating in refuse gasification treatment process Synthesis gas；Secondly, the steam of waste heat recycling can be used to generate electricity, and it may be incorporated into power grid sale；Furthermore it is returned from the rubbish of recycling Receive metal values and plastics；Finally, the clinker after gasification can be processed into the industrial products such as construction material, glass cermaic plate； Thus the freight of rubbish can more be saved.

The applicable cases of domestic and international plasma technique

2010, Kai Di company bought gas ions gasification burner and plasma flare gun body system to Xi Wu plasma company, the U.S. System, and the house refuse demonstration plant of processing capacity 150t/d is mounted in Wuhan.EER environmental energy company, Israel and Sweden The processing capacity 12t/d project that Royal Institute of Technology joint is established, and the processing capacity 6.0- established in Moscow in 2002 9.6t/d handles cool waste factory.This energy group company of Canadian pula is dual using conventional gas and plasma Process route: firstly, pre- sub-argument goes out metal values；Secondly, it is small-molecule substance shape that house refuse, which is carried out Non-oxygen pyrolytic, At crude synthesis gas；Then, then by high-temperature plasma electric arc by crude synthesis gas it is converted into smart synthesis gas to generate electricity, ash melting At vitreum.In March, 2018, six institute, China Aerospace Science and Technology Corporation, 11 institute establish plasma clinker gasification and melting in Yancheng Handle solid waste demonstration projects.Zhong Guang nuclear environment company has built 10t/d corona treatment solid waste demonstration work in Qingyuan City Journey project.Mechanics institute, the Chinese Academy of Sciences, Chinese Academy of Sciences's plasma etc. units be devoted to research of the plasma in offal treatment. Jiangsu Zhong Ke company the town Yang Miao hazardous waste plasma fusion processing item, including corona treatment complexes and Mating exhaust gas purification system, solid waste receive fortune and scratch system, solid waste are crushed and the works such as pretreating zone, finished bin, Sewage Disposal Cheng Zucheng.

The exhaust-gas treatment mode of country's mainstream plasma technique at present, using " dual firing chamber+steam boiler+chilling tower+half Dry-type desulfurizing tower+spray pulverized limestone, activated-carbon device+bag filter+wet type acidic cleaning tower+wet type alkaline washing tower+steam The tupes such as heat exchange device+air-introduced machine+chimney ".The flue-gas temperature of dual firing chamber controls between 1000~1200 DEG C, and protects Card exhaust gas has maelstrom degree (effect for fully ensuring that heat transfer and mass transfer) in high-temperature fusion vortex；Residence time > 2s with On；And the E excess air factor (guarantee has sufficient oxidizing fire, as much as possible elimination dioxin) equipped with sufficient amount, meet " three T+E " standard, cause harmful substance destroys rate 99.99% by fire, and efficiency of combustion reaches 99.9% or more.But dioxin exists In 300~550 DEG C of sections, have it is secondary again it is composite regenerated at dioxin the phenomenon that, the exhaust-gas treatment master of traditional technology thus On fluid layer face, using the Spray Way in chilling tower apparatus, 650 DEG C of flue gases are sharply dropped to 200 DEG C of < in < 1.0s Cryogenic gas forces chlorion can not the again composite regenerated precautionary measures at dioxin.

However, composition generation dioxin has precondition again, the most key to be: first and second dislikes English catalyst The catalytically-active metals element of Fe of (CuCl2, FeCl3), Cu, the guarantor in entire exhaust gases passes system in 300~550 DEG C of regions Shield concrete layer, in waste heat boiler steel material etc. it is ubiquitous, can not avoid.The second, there are no one both at home and abroad at present The fog-spray nozzle or other means of kind of chilling tower, can absolute guarantee's high-temperature flue gas from 550 degree less than completing to drop in 1.0s 200 degree of flue gases, so inhibit the possible in theory of the composition generation again of dioxin using the spray method of chilling tower, it is objective On can not fully achieve.Developed countries have canceled atomizing chilling but process, are substituted by novel technique.

Currently on the market, using " chilling tower+half dry type desulfurizing tower+wet type acidic cleaning tower+wet type alkaline washing tower+steaming In the fume treatments modes such as vapour heat exchange device+air-introduced machine+chimney ", need to consume a large amount of tap water or industrial softened water；Together Shi Caiyong spray wet scrubber tower mode is that lime stone water slurry or sodium hydroxide solution medicament are passed through spray method Be injected on the constructional device surface of special designing, be perforated through come high-temperature flue gas contained in SO2, HCl, HF, Cl₂Deng Acid-base neutralization chemical reaction occurs for acidic materials, achievees the purpose that desulfurization depickling；It is obvious that it handles very effect, while having good It is atomized the effect for eliminating dust well.

Currently on the market, using " chilling tower+half dry type desulfurizing tower+wet type acidic cleaning tower+wet type alkaline washing tower " etc. The shortcomings that fume treatment mode: other than needing to pay a large amount of industrial water expense, a large amount of toxic have there is also produced The buying expenses problem of the processing equipments such as the operation processing cost of evil waste water and required sludge drying to be added, burning.It is false If Suo Jian solid waste central treating station itself has no ability to handle poisonous and harmful waste water, it must need to transport professional dirt Water treatment plant goes to handle, and the costs such as transport are not also low.

Active carbon has great specific surface area and superpower absorption chlorine radical compound, dioxin, heavy metal arsenic (As), selenium (Se), the harmful substances such as mercury (Hg) and the ability of gas peculiar smell；And as long as a small amount of active carbon and flue gas uniformly mix Can reach very high absorption purifying effect, adsorption efficiency it is intimate 100% the advantages of.It haves the shortcomings that as follows again simultaneously:

The first, it is mating to do to need the injection apparatus of expensive price for active carbon, while its removal efficiency is by disk feeder Job state influence of fluctuations.

The second, activated carbon adsorption dioxin, is only transferred into flying dust, and total amount is not reduced.Third, activated carbon adsorption Efficiency and active carbon specific surface area and the mixability of flue gas etc. are stablized, fully control technique and be more stranded because being known as substantial connection It is difficult.

4th, dioxin escapes again in order to prevent, and flying dust is also required to be sent to danger waste treatment plant containing dioxin and is remarketed.

5th, due to the presence of active carbon, it will increase the spontaneous combustion bring fire hazard in deduster.

6th, active carbon is only to adsorb collection function, without the innoxious resolution process energy chemically reacted to dioxin Power, so site operation personnel is still to be in dangerous work bad border.

Pulsed jet cloth filter is the solid formation for collecting flue dust, sour gas neutralization reaction, and anti-without participating in completely The solid particles such as the lime dust answered.With efficiency of dust collection up to 99.9%, the dust content of purification gas will be less than 10mg/m3 The advantages of, the particulate especially for submicron particle containing heavy metal, which is able to carry out, effectively to be trapped and adsorbed gas The ability of state dioxin is especially prominent.It but is specific certain stretch there are the fiber cloth of pulsed jet cloth filter braiding cylinder Elasticity, when air compressor machine pulse reverse strikes soot blowing, cloth bag fibre tube knows from experience expansion extension outward, causes to be pasted onto filter cloth table Cloth bag fiber cashmere hole is completely exfoliated in dust layer (calcium compound, active carbon etc.) on face, causes the interfibrous hole of cloth bag Expanded or penetrating, dust particle is caused to pass through the critical defect that its fiber hole escapes out.

In conclusion up to the present, on domestic and international market there are no one to use high-temperature plasma fusion technology, it will Flying dust, residue mix the case for carrying out melt process.Traditional technology is using " chilling tower+half dry type desulfurizing tower+wet type The exhaust gas harmless treatment modes such as acidic cleaning tower+wet type alkaline washing tower ", there is need to pay a large amount of charges for water use and The processing such as the sludge drying, the burning that generate in produced a large amount of poisonous and harmful wastewater treatment operation costs and its sewage are set Standby buying expenses problem.

And high-temperature plasma treatment process and system that the flying dust and residue of a kind of innovative dangerous waste object mix, Tail portion exhaust-gas treatment mode are as follows: " gas-gas heat-exchanger rig+circulating fluid bed in damp dry type+venturi dry desulfurization denitrification apparatus+pottery The process routes such as dedusting, desulphurization denitration and the catalyst of porcelain fiber chimney filter/catalyst elimination dioxin device ", reduce exhaust gas The capital investment and occupied area of processing equipment；A large amount of industrial water expense and its cost for wastewater treatment are saved, thus Reduce the operation cost of exhaust-gas treatment；And exhaust emissions index is significantly larger than country, provincial standard, and even more than European Union marks It is quasi-；Thoroughly volume reduction, innoxious and recycling treatment disposal options are veritably accomplished.

Therefore, as increasing industrialization day output, improving production efficiency, reduction occupied area, energy-saving and emission-reduction reduce maintenance dimension Shield expense；It is innoxious to enhance the reliability of equipment operation, safety, and the solid dangerous waste object of promotion economic scale benefit Central treating station；There is an urgent need to specially manufacture and design one kind to mix flying dust together with residue, and without spraying spray mould The complete set of equipments and its technical matters of the harmless treatment dangerous waste object tail gas of formula.

Summary of the invention

The technical problem to be solved in the present invention is that on current domestic and international market, there are no one using high temperature etc. Flying dust, residue are mixed the case for carrying out melt process together by gas ions fusion technology；And using " gas-gas heat exchange Cooling and dedusting device+circulating fluid bed in damp dry type semi-dry desulphurization depickling, absorption dioxin device+venturi dry desulfurization are de- Acid, absorption dioxin device+ceramic fibre chimney filter dedusting, desulphurization denitration and catalyst/catalyst eliminate dioxin device " Deng exhaust gas treatment technology technique and system of the combination without spray process.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by by flying dust, danger Three kinds of different characteristics materials of residual waste and cullet and other microelements, have distinguished according to the technical matters parameter of setting At metering weighing and proportioning after carry out mixing operation；It is uniformly sent into high-temperature plasma burner hearth and is melted by conveying batcher again At glass cermaic plate, the construction material of the scraper slagging machine place mat for having utility value, and all kinds of sculptures in urban public playground The vitreum of moulding.

The technical problem to be solved in the present invention is that there are high-temperature plasma molten masses on current domestic and international market The problem of explosive incident, occurs for burner hearth.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by by flying dust, danger Three kinds of different characteristics materials of residual waste and cullet and other microelement matches, and after being mixed evenly；By conveying Batcher is at the uniform velocity sent into high-temperature plasma burner hearth and is melted in shallow crucible, is greater than 2500 in the torch of N group plasma generator Under the thermal energy effect of degree, moment, all organic matters were resolved into incoagulable gas and aqueous solution molecule vaporizes；Inorganic matter and Heavy metal melting in the shallow crucible of melting forms semifluid；And the torch rifle of another plasma generator then aims at semifluid The overflow pipe of unit, and release high temperature heat to protect its semifluid swimmingly to overflow in vitreum collecting box,

It thus prevents reducing because of environment temperature, semifluid moment is caused quickly to solidify directly blocking overflow pipe；And torch The cooling water leakage moment of rifle heat exchanger generates the factors such as a large amount of steam gasifications and sets off an explosion, and high-temperature plasma is caused to melt Burner hearth bursts the event of blowing up.

The technical problem to be solved in the present invention is that there are dual firing chamber to need E excess on current domestic and international market Oxygen residual coefficient causes the treating capacity of exhaust gas larger to guarantee that pernicious gas substance is sufficiently burned, processing cost compared with High problem.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by using microwave Plasma (DC inversion high-temperature plasma can also be used) provide 1500 degree as burning thermal energy, need not the excessive air of E Residual coefficient forces heated break apart of the strand of the pollutants such as dioxin, achievees the purpose that harmlessness disposing.Microwave etc. from Daughter technology space temperature uniformity achieved and disposition effect become apparent from, more energy efficient.

The technical problem to be solved in the present invention is that for currently on the market, using chilling tower misting cooling mode, it is ensured that High-temperature flue gas, less than 200 degree of flue gases are directly reduced in 1.0s, inhibits in 300~550 DEG C of regions from 550 degree to realize The composition generation ability again of dioxin.But in view of be filled in high-temperature flue gas pipe-line system dioxin catalyst (CuCl2, FeCl3) catalytic activity element of Fe, Cu；Up to the present simultaneously, a kind of fog-spray nozzle of spraying device can expire not yet both at home and abroad Sufficient high-temperature flue gas lands vertically to 200 degree of flue gases from 550 degree being less than moment in 1.0s, and thus the composition generation again of dioxin is The problem of objective reality.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by using fluidisation The calcium compound molecule cave sieve of bed semi-drying method, the active carbon of dry method carry out the hazardous air pollutants such as absorption dioxin, and The chemical reaction of catalyst cat ceramic fiber chimney filter is resolved to eliminate the process measure of four aspects such as dioxin.

The technical problem to be solved in the present invention is that for currently on the market, using chilling spray tower, wet type acidic cleaning The Wet-type waste gas desulphurizings denitration process modes such as tower, wet type alkaline washing desulfurizing tower, need to pay a large amount of industrial water expense and Its cost for wastewater treatment (including needing to add the processing equipments such as sludge drying, burning)；If there is also take for areas of serious Water, fortune water difficult problem.If Suo Jian solid waste central treating station itself has no ability to processing waste water, it must need to transport It is defeated to go to handle to professional sewage treatment plant, also deposit the not low problem of its expense cost.

Pass through steam boiler for existing defect among the above as a kind of improvement to technical solution of the present invention First carry out that heat exchange is cooling and dedusting with two groups of system and devices of gas-to-gas heat exchanger, 1100 degree or so that dual firing chamber is transported out High-temperature flue gas is reduced to best flue-gas temperature required for desulfurizer, then by semidry method fluidized bed, dry method Venturi Process measure with five aspects such as ceramic fibre chimney filter deduster carries out desulfurization depickling, dedusting, denitration, absorption and eliminates two and dislike The hazardous air pollutants such as English, and industrial softened water expense and its cost for wastewater treatment can be saved completely.

The technical problem to be solved in the present invention is that for currently on the market, using nocuousness such as activated carbon adsorption dioxin Adsorption effect caused by substance there are above-mentioned expensive injection apparatus mating, various factors and the total amount of pollutant are constant The defect problem of seven aspects such as health of human body, fire hazard brought by physical transfer.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by using fluidisation The hazardous air pollutants such as the calcium compound molecule cave absorption dioxin of bed semi-drying method, and the filter of catalyst cat ceramic fiber The chemical reaction of pipe is eliminated based on the two aspect measure such as dioxin, while being equipped with injection active carbon at venturi dry method device Dioxin process is adsorbed, the alternative scheme launched when catalyst cat ceramic fiber SO2 poisoning is only prevented.

The technical problem to be solved in the present invention is that being collected for currently on the market using pulsed jet cloth filter, absorption When the harmful substances such as solid particle and gaseous state dioxin, there are the fiber cloths of pulsed jet cloth filter to weave cylinder, specifically Certain telescopic resilience, when air compressor machine pulse reverse strikes soot blowing, cloth bag fibre tube knows from experience expansion extension outward, causes to glue Cloth bag fiber cashmere hole is completely exfoliated in the dust layer (calcium compound, active carbon etc.) being attached on filter cloth surface, causes cloth bag Interfibrous hole is expanded or penetrating, the defect problem for causing dust particle to escape out across its fiber hole.

As a kind of improvement to technical solution of the present invention, for existing defect among the above, by using ceramics Fiber chimney filter material forms firm filtration barrel body by alumina silicate fibre and inorganic adhesive agent, it is not easy to chemical substance Learn reaction；Every cylinder body outer wall level can retain the remaining dirt cake of certain storage simultaneously, and the outer surface of filter cylinder pipe is attached in addition The measures such as calcium hydroxide filter cake cylinder circular hollow column of a circle outer clip shell type, to improve the filter effect (powder of fine particle Dirt filter efficiency is usually less than 5mg/Nm3), hydrogen chloride removal rate is up to 97%；Oxysulfide removal rate is up to 95%；Denitration effect Rate is greater than 85%, dioxin removal efficiency > 91.7%；And service life is far longer than cloth bag and uses the time.

The present invention is in order to solve the above technical problems, its used technical solution is as follows:

A kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system, which is characterized in that including as follows Step:

(a) flying dust molding, the screening of danger residual waste, the broken screening pretreatment system of cullet；

Flying dust molding pretreatment

Secondary environmental pollution caused by flying dust escape, the flying dust that other unit's transport is come pass through special measuring strength in order to prevent Pipeline is sent into bulk cement storage tank and is kept in.By totally-enclosed dedicated transport line, the flying dust in bulk cement storage tank is sent into rubber roller and is granulated Or the molding machine of other patterns carries out roll-in spheroiding or other modes are squeezed into block material.It is sent into totally enclosed type vibrating screen again Interior screening separation, meet molding specifications parameter material be transported to it is to be processed in middle roll-over.Undesirable fine ash material returns It returns to be processed in the molding machine of previous process.

Residual waste screening of endangering pre-processes

The danger residual waste that other unit's transport is come, enters dedicated storage library by totally-enclosed pipeline and keeps in.In order to anti- Secondary environmental pollution caused by only residue peculiar smell and flying dust are escaped, repository is interior to be equipped with exhaust ventilation operating system.It is sealed by whole process Close pipeline, after the danger residual waste in repository is sent into crusher break process, into danger residual waste in roll-over to Processing.

The broken screening pretreatment of cullet

The post-consumer glass that outsourcing comes is sent into cullet repository to keep in, and carries out security protection quarantine measures.By complete Journey closes pipeline, after repository cullet is sent into crusher break process, enters back into be processed in roll-over in cullet.

(b) Weighing conveys feeding system

The technological parameter according to set by requirement of actual working condition, i.e. by above-mentioned three kinds of different materials: flying dust molding materials, dangerous waste object The respective dedicated middle roll-over of residue and cullet and other microelements complete metering in weighing balance weight dispenser respectively Weighing and proportioning, and carry out mixing operation, then from dedicated hermetically sealed conveying batcher into high-temperature plasma burner hearth at the uniform velocity Convey feeding.

(c) high-temperature plasma processing flying dust, residue melten glass system system

Material after above-mentioned mixing match is thrown in high-temperature plasma melting burner hearth crucible, and moment resolves into organic matter The incoagulable gas such as CH4, H2, CO, HCl, H2S, HF, CO2, NH4 and the vaporization of aqueous solution molecule；Inorganic matter and heavy metal exist Be melt into thermal-flame area semifluid into deposited in special vessels crucible by different level and periodically discharge recycle it is valuable highly dense Spend metal and common metal.Low density non-metallic semifluid is oozed out logical to enter vitreum door by above-mentioned crucible top overflow launder Road is flowed out through the bottom overflow pipe of high-temperature plasma burner hearth, is formed vitreum after cooling and is entered vitreum collecting box, then transports outward It is stored to safety zone.Crucible is by the disposable punching block pouring molding of the special materials such as corundum brick.

It is to be processed that the gaseous materials such as the high-temperature flue gas containing dust, incoagulability gas, vaporization hydrone enter dual firing chamber.It is described mating Subsidiary engine and control system include: power-supply device, plasma generator, measuring and controlling and equipment of making nitrogen etc..The high temperature Plasma burner hearth is equipped with safety explosion-proof valve, is connected with high-temperature flue gas air duct and vitreum air duct of slagging tap, prevents cooling water from letting out Leak moment generation vapour explosion.High-temperature plasma melts roof of the furnace and N group plasma generator, plasma spraying gun is arranged Flame of centre temperature is greater than 6500 DEG C, provides 1500~3600 DEG C of thermal energy to shallow crucible reaction area is melted, forces dangerous waste object molten Melt and enter violent pyrolytic reaction in shallow crucible, wherein (the easily evaporation heavy metal element quilt such as Trace Mercury, zinc, lead, copper, cadmium, chromium, arsenic Fuel gas is taken away, and hardly possible evaporation heavy metal element incorporates in vitreum slag), the elements such as sulphur, chlorine, fluorine, bromine are directly formed simply Mineral acid reduction-state gas (H2S, HCl, HF, HBr etc.).The volume reduction of melten glass body is greater than 50%, and Leaching is remote Far below national standard.The thorough decomposition required temperature of general danger solid waste organic matter toxic component is 1100 DEG C,

The thorough decomposition required temperature of the toxic components such as PCBs is 1200 DEG C, and therefore, the control of furnace cylinder inner region temperature exists 1400~1800 DEG C of ranges.

(d) microwave plasma secondary burning system；

The exhaust gas generated in above-mentioned high-temperature plasma melting burner hearth, which enters, (can also select DC inversion by microwave plasma High-temperature plasma) burning thermal energy as dual firing chamber, flue-gas temperature controls between 1100~1500 degree, it is ensured that " 3T+E " Standard.(microwave plasma body technique pyrolytic process and fume treatment process all do not need E excess air) described complete auxiliaries and Control system includes: power-supply device, plasma generator, measuring and controlling and equipment of making nitrogen etc..Its measuring and controlling The thermal energy that microwave plasma offer is greater than 1500 degree is manipulated, forces heated break apart of the strand of dioxin, reaches harmless Change the purpose of disposition.The fly ash particulate of dual firing chamber, the ash discharging hole by dual firing chamber lower part that a part more coarse granule directly passes through are arranged Enter dust collecting box out；Another light fine particle flying dust is then brought by high-temperature flue gas stream to be processed in boiler furnace.

(e) boiler and gas-to-gas heat exchanger cooling and dedusting system

Boiler unit: being entered in boiler furnace by the high-temperature flue gas that above-mentioned dual firing chamber outlet end transports out, and industry is soft Change water and be heated to drying, heating of 180 DEG C of the steam as later process, bathing etc. is used.The powder that the boiler emission comes out It is to be processed that dirt object enters flying dust header.The SNCR denitration device be selective non-catalytic reduction method, to fire box temperature 850~ 1100 DEG C of regions spray into reducing agent (8% ammonium hydroxide of spray, vaporization urea), and the nitrogen oxides in high-temperature flue gas is reduced to harmless nitrogen Gas and water.NOx reaction of the reducing agent only and in high-temperature flue gas, does not react generally with oxygen.Using NH3 as reducing agent original NOx's Equation is main are as follows:

4NH3+4NO+O2=4N2+6H2O；4NH3+2NO+2O2=3N2+6H2O；

8NH3+6NO2=7N2+12H2O

Main chemical reactions using urea as reducing agent reduction NOx are as follows:

(NH2) 2CO=2NH2+CO；NH2+NO=N2+H2O；CO+NO→N2+CO2

SNCR is usually used in boiler furnace, and NOx discharge is down to about 200mg/Nm3, denitration efficiency 30~60%, investment cost It is lower.

Heat exchanger unit: 800 DEG C of high-temperature flue gas that above-mentioned boiler emission comes out enter in gas-to-gas heat exchanger, by extraneous ring 20 DEG C of border cold air exchanges heat to 200~400 DEG C of hot-airs, is used as drying, heating.The gas-to-gas heat exchanger emits Dust object to enter flying dust header to be processed.Less than 350 DEG C high-temperature flue gas of the gas-to-gas heat exchanger output enter ciculation fluidized It is to be processed in bed apparatus.

(f) circulating fluid bed semi-drying method desulfurization depickling, absorption dioxin device

Less than the 350 DEG C high-temperature flue gas exported by above-mentioned gas-to-gas heat exchanger, the boiling in burner hearth is entered from recirculating fluidized bed bottom Acid-base neutralization is completed under the catalysis disturbance of quartz sand heat transfer carrier with the half dry type lime white come in is delivered in fluidization region Reaction is learned, desulfurization deacidification effect is obvious.Its chemical equation:

2 (excess)=CaCO3 ↓+H2O of CO2+Ca (OH)；

2CO2 (excess)+Ca (OH) 2=Ca (HCO3) 2；

SO2+Ca (OH) 2===CaSO3+H2O；

SO3+Ca (OH) 2=CaSO4 ↓+H2O；

2Cl2+2Ca (OH) 2=CaCl2+Ca (ClO) 2+2H2O；

CaCO3+2HCl=CaCl2+H2O+CO2

Half dry type lime white is launched according to the ratio of set amount 1:1.4~1.6, it is ensured that the alkaline medicine in above-mentioned recirculating fluidized bed burner hearth Dosage needed for agent sufficiently meets the chemical reaction of its acid-base neutralization；The dust flying dust that a variety of basic anhydride must also be enhanced simultaneously is dense Degree, density and churning inhibit the formation and discharge of PCDD/Fs to a certain extent；The half dry type limestone slurry launched simultaneously (calcium oxide) is chemically reacted with the acidic materials in high-temperature flue gas, the calcium compound of generation (CaCO3, CaSO3, CaSO4, Ca (ClO) 2 etc.) inner H2O hydrone can rapid vaporization explosion flee from, cause to leave a large amount of superfine hole in calcified material body Cave (it can be appreciated that H2O hydrone sieves)；Its specific surface area becomes adsorptive gaseous two much larger than the specific surface area of active carbon and dislikes English, the ideal of the harmful substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg) are hidden oneself place, and adsorption rate reaches 60~70%.In stone After sand is come into full contact with as the fluidized-bed of catalytic media and the lime white of dispensing, some inevitable lime dust Grain is taken away by the high-temperature flue gas of high flow rate, so the smoke outlet in recirculating fluidized bed is additionally arranged cyclonic separation collector；It will The extra pulverized limestone to escape is launched in fluidized bed burner hearth again after collecting, and continues to repeat above-mentioned acid-base neutralization chemical reaction Process, thus referred to as recirculating fluidized bed desulfurization, absorption dioxin device.The calcium hydroxide chemicals dosing plant is according to recycle stream Change the acid-base property concentration data that detects automatically in bed and feed back to intelligentized control method center, by data executor according to instruction Lai Adjust the conveying feeding coal for delivering calcium hydroxide automatically into burner hearth, it is ensured that the alkali concentration index in burner hearth meets the technology of design Parameter request.It is to be processed that the dust object that the fluidized bed emits enters flying dust header.

(g) depickling of venturi dry desulfurization, absorption dioxin device

The high-temperature flue gas that the high-temperature flue gas outlet end of the recirculating fluidized bed emits enters in venturi dry desulfurization device, Continue acidic materials remaining in flue gas and sodium bicarbonate powder carrying out acid-base neutralization chemical reaction；Purpose is to ensure that input pottery In high-temperature flue gas in porcelain fibre pipe deduster, it is unlikely to that catalyst/catalyst is caused to generate there are the acidic materials of superscale HCL, SO2 poisoning.The venturi dry desulfurization depickling mode is that dosing is equipped at Venturi throat high flow rate position The injection window of device, to guarantee that sodium bicarbonate powder and flue gas middle acid substance in the cylinder in dry desulfurization device, have Under the action of enough residence times and maelstrom degree spoiler, it is sufficiently mixed and acid-base neutralization chemical reaction occurs, to reach To efficient desulfurization depickling purpose.The slaked lime powder to escape in previous process simultaneously will continue to take off in venturi dry type Acid-base neutralization chemical reaction occurs in sulphur device；The molecule cave of its calcium compound continues to adsorb dioxin, heavy metal arsenic simultaneously (As), the harmful substances such as selenium (Se), mercury (Hg).

It is described sodium bicarbonate injection window right opposite at, equally be arranged an active carbon chemicals dosing plant injection window； The dry desulfurization cylinder of special construction can satisfy maelstrom degree and residence time required for active carbon, expeditiously be inhaled Attached dioxin, the harmful substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg).The exhanst gas outlet of the dry type desulfurizing deacidifying device Exported high-temperature flue gas is held, it is to be processed into ceramic fiber tube deduster.The particle dust of the dry type desulfurizing deacidifying device It is to be processed that the dust object emitted in collecting bin enters flying dust header.

(h) dedusting of ceramic fibre chimney filter deduster, desulphurization denitration, elimination dioxin device

The dust-laden high-temperature flue gas that the smoke outlet of above-mentioned dry desulfurization device is exported enters in ceramic fibre chimney filter deduster It is dusted, desulfurization depickling, eliminates the disposition operation such as nitrogen oxides and dioxin.

The ceramic fibre chimney filter material is made of alumina silicate fibre and inorganic adhesive agent, and chemical stability is good, can 250~ Economical operation is carried out in 375 degree of temperature environments, dust filtration efficiency is less than 5mg/Nm3.The ceramic fibre chimney filter deduster It is a good desulfurization depickling reaction chamber in the useful space；There is the niter of a circle outer clip shell type in the outer surface of every chimney filter simultaneously Grey circle filter cake open tubular column, is an independent denitration and the fixed bed for eliminating dioxin chemical reaction, and play upset cigarette The motion profile of air-flow；Thus thousands of ceramic fibre chimney filter Solid Beds are installed be combined into an efficient mixed flow chemistry instead Field is answered, to ensure that the residence time of high-temperature flue gas is longer, chemical reaction effect is more preferable.By spraying sodium bicarbonate sodium bicarbonate (NaHCO3) alkaline agent powder and high-temperature flue gas carry out neutralization chemical reaction, and hydrogen chloride removal rate is up to 97%；Oxysulfide removal Rate is up to 95%.It is described to use selective catalytic reduction (SCR), 8% ammonium hydroxide reducing agent is ejected into ceramic fibre chimney filter and is removed In the high-temperature flue gas reaction chamber of dirt device, under 230~400 DEG C of flue gas environment temperatures, using vanadium titanium system catalyst (catalyst) as load Body medium carries out catalysis and accelerates chemical reaction, so that nitrous oxides selectivity reduction is innoxious N2 and H2O；Denitration efficiency is big In 85%.It is described under the action of vanadium titanium tungsten catalyst, force dioxin and 3% oxygen to be chemically reacted, be broken down into The innoxious gaseous substance discharge such as CO2, H2O, HCl, dioxin removal efficiency > 91.7%.Remove dioxin chemical reaction equation Formula:

C12HnCl8-nO2+ (9+0.5n) O2=(n-4) H2O+12CO2+ (8-n) HCl

It is to be processed that the dust object that the bottom collection storehouse conveying of the ceramic fibre chimney filter deduster comes enters flying dust header.It is described It is to be processed that the tail gas of ceramic fibre chimney filter house outlet end output enters air-introduced machine.

(i) smoke evacuation system

150~170 DEG C for meeting local associated exhaust environmental emission standard of above-mentioned ceramic fiber tube house outlet end output Clean tail gas is delivered to chimney by air-introduced machine and is discharged into atmosphere.Flue dust, dioxy in flue gas on-Line Monitor Device detection discharge flue gas Change sulphur, hydrogen chloride, carbon monoxide, nitrogen oxides, rate of oxygen, carbon dioxide etc..

In above-mentioned steps (a) (b) (c), after flying dust, danger residual waste and cullet are mixed evenly, by being conveyed to Material machine is sent into high-temperature plasma burner hearth and is melted in shallow crucible, at 1500~3600 degree of torch of N group plasma generator Under thermal energy effect, all organic matters resolve into the incoagulable gas such as CH4, H2, CO, HCl, H2S, HF, CO2, NH4 in moment, with And aqueous solution molecule vaporization；Inorganic matter and heavy metal are melt into semifluid in the shallow crucible of melting and enter in special vessels crucible It deposits by different level and periodically valuable high desnity metal and common metal is recycled in discharge.Another plasma generator torch rifle is then Independent aim at semifluid overflow pipe unit, the high temperature heat released protects low density non-metallic semifluid to pass through above-mentioned earthenware Overflow launder exudation forms vitreum after cooling and keeps at the top of crucible to flow in vitreum collecting box, then outer again to be transported to safety Region storage.It is to be processed that the gaseous materials such as the high-temperature flue gas containing dust, incoagulable gas, vaporization hydrone enter dual firing chamber.

In above-mentioned steps (c), for the shallow crucible shape of melting such as clam shell, depth areas is high temperature plasma flame Flying dust, the main operating area of residue windrow are melted, by the disposable punching block pouring molding of the special materials such as corundum brick.The inorganic matter and Heavy metal is melt into semifluid into deposition and periodically discharge recycling by different level in special vessels crucible in thermal-flame area Valuable high desnity metal and common metal.Low density non-metallic semifluid oozes out to enter glass by above-mentioned crucible top overflow launder Glass body door is flowed out through the bottom overflow pipe of high-temperature plasma burner hearth, is formed vitreum after cooling and is entered vitreum collection Case, then the outer safety zone that is transported to are stored.Heavy metal recovery crucible is by the disposable punching block pouring molding of the special materials such as corundum brick.Institute It states high-temperature plasma melting burner hearth complete auxiliaries and control system includes: power-supply device, plasma generator, measurement control Device and the equipment of making nitrogen etc..The high-temperature plasma burner hearth is equipped with safety explosion-proof valve, goes out with high-temperature flue gas air duct and vitreum Slag air duct is connected, and prevents cooling water leakage instant vaporization from exploding.High-temperature plasma melts roof of the furnace and N group plasma is arranged Body generator, plasma spraying gun flame of centre temperature are greater than 6500 DEG C, provide 1500~3600 to shallow crucible reaction area is melted DEG C thermal energy forces dangerous waste object to enter violent pyrolytic reaction in shallow crucible melting, wherein (Trace Mercury, zinc, lead, copper, cadmium, chromium, arsenic It evaporates heavy metal element Deng easily to be taken away by fuel gas, it is heavy in special heavy metal recovery crucible that hardly possible evaporation heavy metal element enters Product is super next periodically to discharge), the elements such as sulphur, chlorine, fluorine, bromine directly formed simple mineral acid reduction-state gas (H2S, HCl, HF, HBr etc.).The volume reduction of melten glass body is greater than 50%, and Leaching is well below national standard.General danger solid waste is organic The thorough decomposition required temperature of object toxic component is 1100 DEG C, and the thorough decomposition required temperature of the toxic components such as PCBs is 1200 DEG C, therefore, furnace cylinder inner region temperature is controlled in 1400~1800 DEG C of ranges.

In above-mentioned steps (c), the high-temperature plasma burner hearth be equipped with safe explosion-proof device, with conveying batcher, etc. The slag tap gas circuit in air duct of plasma generator, dual firing chamber and its high-temperature flue gas air duct and vitreum is connected.The high temperature Plasma burner hearth is connected with plasma electrical source and measure and control device, the equipment of making nitrogen, plasma generator

It in above-mentioned steps (d), is improved by the special designing to dual firing chamber's inner barrel structure, used cleaning energy Source be microwave plasma (DC inversion high-temperature plasma can also be selected), need not the excessive air residual coefficient of E, because The harmless treatment amount of this its exhaust gas substantially reduces.Its measuring and controlling manipulates microwave plasma and provides greater than 1500 degree Thermal energy forces heated break apart of the strand of dioxin, achievees the purpose that harmlessness disposing.The complete auxiliaries and control system System includes: power-supply device, plasma generator, measuring and controlling and equipment of making nitrogen etc..The fly ash particulate of dual firing chamber, one The part ash discharging hole by dual firing chamber lower part that more coarse granule directly passes through is discharged into dust collecting box；Another light fine particle flying dust is then It is brought by high-temperature flue gas stream to be processed in boiler furnace.

In above-mentioned steps (e), into boiler furnace high-temperature flue gas and 20 DEG C of industrial softened waters to carry out heat exchanges raw At 180 DEG C of steam for drying, warming oneself, bathing etc. is used；8% ammonium hydroxide is sprayed in 850~1000 DEG C of regions of boiler furnace simultaneously Nitrogen oxides in flue gas is reduced to harmless nitrogen and water by reducing agent, and it is de- to complete selective non-catalytic reduction method (SNCR) Nitre process.NOx discharge is down to about 200mg/Nm3, denitration efficiency 30~60%, investment cost is lower.Using NH3 conduct The equation of reducing agent original NOx is main are as follows: 4NH3+4NO+O2=4N2+6H2O；4NH3+2NO+2O2=3N2+6H2O；8NH3+ 6NO2=7N2+12H2O

In above-mentioned steps (e), entered in gas-to-gas heat exchanger by 800 DEG C of high-temperature flue gas that boiler exports, by external environment 20 DEG C of cold airs exchange heat to 200~400 DEG C of hot-airs, are used as drying, heating.In view of being full of in high-temperature flue gas pipe-line system Dioxin catalyst (CuCl2, FeCl3) catalytic activity element of Fe, Cu；The spray pattern of chilling tower not can guarantee high temperature simultaneously Flue gas is dropping to 200 degree of flue gases less than completion in 1.0s from 550 degree；From being unable to be fully solved in 300~550 DEG C of regions The composition generation problem again for inhibiting dioxin, simply cancels chilling tower apparatus thus；Chilling is substituted using gas-to-gas heat exchanger The position of tower and its cooling effect.Solve chilling tower in atomizing chilling simultaneously, it is required to use a large amount of softened water expense And its problems such as cost for wastewater treatment.Really, related dioxin can again composition generation the problem of, then can be in the entire system (c) in the working procedures level of (d) (f) (g) and (h), solution is disposed using means such as inhibition, absorption, eliminations.

In above-mentioned steps (e), the 8% ammonium hydroxide SNCR denitration of the spraying in boiler furnace and ceramic fibre When 8% ammonium hydroxide SCR denitration reducing agent carries out denitration operation in pipe deduster, need cautiously to adjust the injection quantity of its ammonium hydroxide, ABS is generated to prevent excess of ammonia water and excessive sulphur from chemical reaction occurring in catalyst cat ceramic fibre pipe deduster, The sticky salts such as ammonium sulfate (NH4) 2SO4, ammonium hydrogen sulfate NH4HSO4 are attached on the outside of catalyst cat ceramic fiber chimney filter On face or plug the SO2 poisoning in its fibre gap aperture.

In above-mentioned steps (f), high-temperature flue gas less than 350 degree, the gas inlet end from recirculating fluidized bed bottom is direct Into the fluidization region in burner hearth, and the half dry type lime white come in is delivered under the catalysis disturbance of quartz sand heat transfer carrier, Acid-base neutralization chemical reaction is completed, the effect of desulfurization depickling is quite obvious.Simultaneously instead of traditional spray acidity scrubbing tower With alkaline washing tower, to solve required for its problems such as using a large amount of softened water expense and its cost for wastewater treatment.Its Chemical equation:

2 (excess)=CaCO3+H2O of CO2+Ca (OH)；

2CO2 (excess)+Ca (OH) 2=Ca (HCO3) 2；SO2+Ca (OH) 2===CaSO3+H2O；SO3+Ca (OH) 2= CaSO4+H2O；CaCO3+2HCl=CaCl2+H2O+CO2

2Cl2+2Ca (OH) 2=CaCl2+Ca (ClO) 2+2H2O

In above-mentioned steps (f), firstly, the ratio of 1:1.4~1.6 according to set amount launches half dry type limestone slurry, with Guarantee that the basic agent in burner hearth meets acid-base neutralization chemical reaction, and is dispersed in entire circulation by what high velocity smoke stream was taken away In flue and the base amount of the sum of cyclonic separation collector etc. hold-up.Secondly, by into recirculating fluidized bed cylinder Launch the basic anhydride such as lime stone and calcium oxide or spray ammonia, come prevent or reduce hydrogen chloride it is further decompose after be formed by Chloride ion source achievees the purpose that dioxin processed generates.Finally, being designed using the intracorporal special construction of fluidized bed cylinder, improve Quartz sand realizes certain in the flow-disturbing degree of boiling fluidization regions and flying dust concentration, density and the churning of a variety of basic agents PCDD/Fs is inhibited to form the purpose with discharge in degree.

In above-mentioned steps (f), the acidic materials in the half dry type lime white (calcium oxide) and flue gas carry out neutralization When learning reaction, the inner H2O hydrone of the calcium compound (CaCO3, CaSO3, CaSO4, Ca (ClO) 2 etc.) of generation can rapid vaporization Explosion escape causes to leave a large amount of ultra-fine scintilla cave in calcium compound body；Its specific surface area is much larger than active carbon Specific surface area becomes adsorptive gaseous dioxin, and the ideal of the harmful substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg) is hidden oneself field Institute, adsorption rate reach 60~70%.Cyclonic separation collector structure feature itself is exactly a kind of high flow rate, maelstrom degree simultaneously Reaction chamber, remaining sour gas and dispersion are detained the lime white powder particle in it and are occurred in impacting type catalysis soda acid in flue gas And chemical reaction, desulfuration efficiency are high；The hydrone cave adsorptive gaseous two of the calcium compound in this phase zone is disliked simultaneously The harmful substances such as English it is more efficient.

The cyclonic separation collector of recirculating fluidized bed smoke outlet is set, has collected and is escaped by the drive of high velocity smoke stream Limestone powder, and automatically returned in fluidized bed boiling section again by the pipeline of cyclone separator, continue to repeat above-mentioned The chemical reaction process of process, referred to as circulating fluid bed desulfurization device, referred to as: recirculating fluidized bed.

In above-mentioned steps (g), in the structure space of the venturi dry desulfurization of special designing, using sodium hydrogen carbonate powder End carries out neutralization chemical reaction with the acidic materials in high-temperature flue gas, to ensure to be sent into the height before ceramic fibre chimney filter deduster In warm flue gas, contained acidic materials concentration, magnitude, it is necessary to meet technical parameter requirement.Avoid ceramic fibre chimney filter dedusting The catalyst catalyst of device is (with TiO₂For carrier, using V2O5 or WO3 or MoO3 as activating agent) SO2 poisoning is met with, occur with ammonium hydroxide Chemical reaction generates the sticky salt attachment such as ABS, ammonium sulfate (NH4) 2SO4, ammonium hydrogen sulfate NH4HSO4 and obstruction ceramic fibre Chimney filter；And SiO2 silica reacts with HF hydrofluoric acid and generates Gaseous silicon tetrafluoride: SiO2 (s)+4HF (aq) → SiF4 (aq) + 2H2O (l) corrodes the events such as ceramic fibre chimney filter.

Its primary chemical equation:

3SiF4+2Na2CO3+2H2O=H4SiO4 ↓+2Na2SiF6 ↓+2CO2；

SiF4+6NaOH=Na2SiO3+4NaF+3H2O；SiF4+2HF=H2SiF6

Acid in above-mentioned steps (g), in 260~350 degree of environment, in calcium hydroxide Ca (OH) 2 and high-temperature flue gas When matter is chemically reacted, moment steam pop phenomenon can occur with chemical combination H20 hydrone in the calcium compound of formation；And First moment left a large amount of H20 molecule cave when fleeing from calcium compound body, specific surface area is far longer than active carbon Specific surface area becomes absorption dioxin, and the ideal of the pernicious gases substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg) is hidden oneself field Institute.

Setting high speed injection window, sprays sodium bicarbonate sodium bicarbonate (NaHCO3) or calcium hydroxide Ca (OH) at the trunnion of venturi 2 powder and swiftly flowing high-temperature flue gas are sufficiently mixed together, as the flow of flue gas direction of maelstrom degree forward moves. Its intracorporal special disturbing flow device, ensure that sodium bicarbonate powder medicament has enough residence times, in high-temperature flue gas Acidic materials come into full contact with, and neutralization reaction occurs, to reach efficient desulfurization depickling purpose.

Its primary chemical equation: 2NH4NO3+Ca (OH) 2=2NH3+2H2O+Ca (NO3) 2；

CO2+Ca (OH) 2=CaCO3 ↓+H2O；CaCO3+2HCl=CaCl2+H2O+CO2；

Na2CO3+Ca (OH) 2=CaCO3 ↓+2NaOH；2HF+CaCl2=CaF2+2HCl；

2HCl+Ca (OH) 2=CaCl2+2H2O；MgCl2+Ca (OH) 2=CaCl2+Mg (OH) 2；

SO2+Ca (OH) 2===CaSO3+H2O；SO3+Ca (OH) 2=CaSO4+H2O；

In above-mentioned steps (g), the injection window of active carbon chemicals dosing plant, injection activity are equipped at the trunnion of venturi Charcoal and swiftly flowing high-temperature flue gas are sufficiently mixed together, as the flow of flue gas direction of maelstrom degree forward moves.Its There are enough residence times in the mixed flow tube structure space of big flow-disturbing degree, active carbon is allowed expeditiously to adsorb SO2, HF, two dislike English, the harmful substances such as heavy metal Hg (Hg)；It is met with to effectively prevent catalyst/catalyst of ceramic fibre chimney filter deduster The event of SO2 and mercury (Hg) poisoning and HF corrosion ceramic fibre chimney filter occurs.Really, injection active carbon itself can be brought perhaps More unfavorable factor, so it is only the spare process for adsorbing harmful gaseous matter, to prevent ceramic fibre chimney filter from meeting with It is enabled at once when meeting SO2 poisoning；Detected indices parameter all meets designing technique condition after system operates normally When, it can stop or minimal amount of capture the harmful substances such as heavy metal arsenic (As), mercury (Hg) using injection active carbon.

In above-mentioned steps (h), ceramic fibre chimney filter material is made of alumina silicate fibre and inorganic adhesive agent, chemical stabilization Property it is good, it is not easy to chemically react, and can be operated normally under 600 degree with chemical substance, economic operation temperature be 250~ 375 degree；Its dust filtration efficiency is 5mg/Nm3, generally smaller than 3mg/Nm3.Ceramic fiber tube deduster is at entire exhaust gas The part device of most critical in reason system must convey the high-temperature flue gas to come to preceding working procedure, do further dedusting, desulfurization takes off Nitre, the disposition operation for eliminating the pernicious gases substance such as nitrogen oxides and dioxin, to reach the correlation that tail gas meets local environmental protection It is finally discharged after standard.

In above-mentioned steps (h), the useful space part of entire ceramic fibre chimney filter deduster is a good desulfurization Depickling reaction chamber, wherein there is the calcium hydroxide circle filter cake pipe of a circle outer clip shell type in the outer surface of every chimney filter, it is an independence Denitration and eliminate dioxin chemical reaction fixed bed.Each chimney filter, which all plays, simultaneously upsets the movement rail of flue gas stream Mark, and ceramic fibre chimney filter deduster is the high-efficiency mixed flow chemical reaction field for having thousands of Solid Beds to be combined into, to protect It is longer to have demonstrate,proved residence time of the high-temperature flue gas in the useful space, and chemical reaction effect is more preferable.

Dry method or semi-dry desulphurization mode are used simultaneously, and collocation sodium bicarbonate (NaHCO3) is commonly called as sodium bicarbonate or calcium hydroxide Ca (OH) 2 basic agent enhances the neutralization chemistry respond of removal sour gas substance, and thus HCL removal rate is up to 97%； SO2 removal rate is up to 95%.Because the solubility of sodium bicarbonate in water be less than sodium carbonate, 270 DEG C of fusing point, thus select NaHCO3 Desulfurization basic agent as low-temperature zone.Primary chemical equation:

NaHCO₃+ HCl=NaCl+H₂O+CO₂↑

NaHCO₃+CH₃COOH=CH₃COONa+H₂O+CO₂↑

NaHCO₃+ NaOH=Na₂CO₃+H₂O

NaHCO₃+Ca(OH)₂=NaOH+CaCO₃↓+H₂O

2NaHCO₃+Ca(OH)₂=Na₂CO₃+CaCO₃↓+2H₂O

4NaHCO₃+2CuSO₄=2Na₂SO₄+Cu₂(OH)₂CO₃↓+H₂O+3CO₂↑

In above-mentioned steps (h), denitration process mode currently on the market has: Ozone, electronic beam method, plasma method, There are different technologies, equipment manufacturing costs, operating charges in microwave method, cathode-ray method, selective catalytic reduction (SCR) etc. With some problems cannot preferably promote.

The denitration mode of ceramic fibre chimney filter deduster is using selective catalytic reduction (SCR), by reducing agent Urea It is ejected into after atomization in the flue gas effective disturbance mixed flow space of ceramic fibre chimney filter deduster；With vanadium titanium tungsten catalyst (catalyst) work It is mounting medium under 250~330 DEG C of running environment, carries out the nitrogen oxides for chemically reacting removable NO, main removal rate > 95%.Its chemical equation: 4NO+2 (NH2) 2CO urea+O2=4N2+4H2O+2CO2

8% ammonium hydroxide reducing agent is ejected into the smoke reaction room of ceramic fibre chimney filter deduster, in 230~400 DEG C of flue gas rings At a temperature of border, through catalyst (TiO₂For carrier, V2O5 or WO3 or M0O3 are activating agent) catalysis acceleration reaction, so that nitrogen oxidation Object selectivity is reduced to innoxious N2 and H2O；Denitration efficiency is greater than 85%.Main chemical reactions equation: 4NO+4NH3 Ammonia+O2=4N2+6H2O

In above-mentioned steps (h), dioxin species compound (PCDD/Fs) is mainly derived from steel casting and metal smelt The fat-soluble organic pollutant of the persistence of industry, in medium that is widely distributed and persistently there are various environment, after being absorbed by the body Just it accumulates and is released after the sentence expires in whole adipose tissues, and final carcinogenesis.

It is described under the action of NaHCO3, Ca (OH) 2, NH3 and vanadium titanium tungsten catalyst catalyst, ceramic fibre chimney filter deduster can While completing above-mentioned removal dust, desulphurization denitration function；It forces dioxin and 3% oxygen to be chemically reacted, is broken down into The discharge of the innocuous substances such as CO2, H2O, HCl, dioxin removal efficiency > 91.7%.Remove dioxin chemical equation:

C12HnCl8-nO2+ (9+0.5n) O2=(n-4) H2O+12CO2+ (8-n) HCl

Really, the contaminant removal efficiency in exhaust gas is mixed depending on granularity (specific surface area), the purity, dosage of its additive The elements such as conjunction degree and catalytic time.

In conclusion there are no one to use high-temperature plasma fusion technology at present on domestic and international market, by flying dust, Residue mixes the case for carrying out melt process together；And there are semifluid frozen plug overflow pipe and cooling waters Leak instant vaporization explosive incident；

Needing E excessive oxygen residual coefficient there are dual firing chamber leads to the larger problem for the treatment of capacity of exhaust gas.In the presence of can not be disposable Thoroughly solve the problems, such as the composition generation again of dioxin；In the presence of solving cooling drop using a large amount of water base liquid medicine A large amount of poisonous and harmful waste water is generated when temperature, desulphurization denitration, leads to the higher cost issues of payment required for handling its waste water；It deposits Part of appliance technology inherently, the material, structure process of type selecting the defects of, cause day production treating capacity low, maintenance dimension Shield takes height, has aggravated the operation cost of integral device system；Therefore a kind of stable equipment operation, safe and reliable need be urgently provided Property it is high, maintenance maintenance take that low, operation cost is low, high production efficiency, waste recovery recycling, and can mix flying dust, residue It is combined while carrying out thoroughly volume reduction, innoxious and recycling high-temperature plasma melt process complete set of equipments dress It sets.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (a) (b), by flying dust roll-in spheroiding Or it is squeezed into block material, danger residual waste carries out broken crusher machine and cullet carries out crusher break process；According to setting The technical matters parameter of meter carries out metering weighing and proportioning to above-mentioned three kinds of different materials respectively, add when necessary it is suitable other Melting after microelement is mixed evenly together, from from dedicated hermetically sealed conveying batcher to high-temperature plasma burner hearth Feeding is at the uniform velocity conveyed in shallow crucible.This process program, be take full advantage of flying dust, chemical element respectively contained in residue at Deal advantage, while by discarded old category of glass physical resources recycling and reusing, reduce to other monomers chemical element Consumption eliminates two secondary rings caused by scrap glass class solids is disorderly abandoned everywhere to reduce the use cost of raw material Border pollution problem.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (c), the mixture of the said ratio Material enter high-temperature plasma melting burner hearth crucible in, moment by organic matter resolve into CH4, H2, CO, HCl, H2S, HF, CO2, The incoagulable gas such as NH4 and the vaporization of aqueous solution molecule；Inorganic matter and heavy metal are melt into semifluid in the shallow crucible of melting, Valuable high desnity metal and common metal, which are deposited on by different level in special vessels crucible, periodically drains back into receipts.Low density non-metallic Semifluid oozes out to flow out through the bottom overflow pipe of high-temperature plasma molten mass burner hearth by above-mentioned crucible top overflow launder；It is described Semifluid forms vitreum after entering the cooling of vitreum collecting box, then outer to be transported to safety zone storage.The high-temperature plasma Body burner hearth is equipped with safety explosion-proof valve, is connected with high-temperature flue gas air duct and vitreum air duct of slagging tap, it is therefore an objective to prevent bottom overflow The explosive incident that the semifluid frozen plug of pipe and cooling water leakage instant vaporization cause.Thus specially independent to devise one Root plasma generator torch rifle aims at viscid overflow pipe unit, and releases very high thermal energy to ensure it Semifluid swimmingly overflows in vitreum collecting box；Cooling water pipeline insures design scheme using double jacket simultaneously, effectively Prevent the generation of cooling water leakage accident.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (d), by using microwave plasma (can also use DC inversion high-temperature plasma) is provided greater than 1500 degree as thermal energy is burned, need not the excessive air residue of E Coefficient forces heated break apart of the strand of the pollutants such as dioxin, achievees the purpose that harmlessness disposing (conventional incineration technology Using flue-gas temperature control between 1100~1200 degree, it is ensured that " 3T+E " standard), while reducing the harmless treatment of exhaust gas Amount.Microwave plasma body technique space temperature uniformity achieved and disposition effect become apparent from, are more energy efficient, to reduce useless The operation cost of gas disposal.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (e), by using fluidized bed semi-dry process Calcium compound molecule cave sieve, dry method active carbon carry out the absorption hazardous air pollutants such as dioxin, and catalyst catalysis Dioxin is eliminated in the process measure of the aspect of chemical reaction of agent ceramic fibre chimney filter etc. four.

Because so far, there are no a kind of fog-spray nozzles of spraying device can satisfy high-temperature flue gas from 550 on domestic and international market Degree lands vertically less than moment in 1.0s to the objective fact of 200 degree of flue gases；It is filled in the systems such as its high-temperature flue gas pipeline simultaneously Dioxin catalyst (CuCl2, FeCl3) catalytic activity element of Fe, Cu.That is chilling tower misting cooling mode is used, is protected Card high-temperature flue gas less than 200 degree of flue gases are directly reduced in 1.0s, is carrying out disposable thoroughly inhibition 300~550 from 550 degree The problem of composition generation again of dioxin is unpractical in DEG C region, so inhibiting two evils using the spray method of chilling tower The means of the composition generation again of English are in the presence of dispute.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (e) (f) (g) and (h), pass through steam Two groups of system and devices of boiler and gas-to-gas heat exchanger carry out heat exchange cooling, 1100 degree or so of the high temperature that dual firing chamber is transported out Flue gas is reduced to best flue-gas temperature required for desulfurizer, then by semidry method fluidized bed, dry method Venturi and pottery The process measure of the aspect of porcelain fiber chimney filter deduster etc. five is dusted, desulphurization denitration, absorption, harmful gas such as eliminate dioxin Body pollution object, and industrial softened water expense and its cost for wastewater treatment can be saved completely.

Because currently on the market, cooling using wet types such as chilling spray tower, wet type acidic cleaning tower, wet type alkaline washing desulfurizing towers Cooling, exhuast gas desulfurization denitration process mode, need to pay a large amount of industrial water expense and its poisonous and hazardous wastewater treatment at This (including the processing equipments such as need to add sludge drying, burn, and there are the part of appliance of type selecting technology inherently, The defects of material, structure process)；If there is also water intakings, fortune water difficult problem for areas of serious.If built solid waste When object central treating station itself has no ability to processing waste water, it must need to transport to professional sewage treatment plant and go to handle, also deposit it The not low problem of expense cost.

It, will less than 350 degree high-temperature flue gas in above-mentioned steps (f) as a kind of improvement to technical solution of the present invention Enter the boiling of the quartz sand in burner hearth fluidization region, the half dry type lime white (oxygen come in delivery from recirculating fluidized bed bottom Change calcium) it is launched according to the ratio of set amount 1:1.4~1.6, it is ensured that it is anti-to meet acid-base neutralization for basic agent in recirculating fluidized bed burner hearth Answer required dosage；Chemical reaction is completed under the catalysis disturbance of quartz sand heat transfer carrier, desulfurization deacidification effect is quite obvious； The inner H2O hydrone meeting of the calcium compound (CaCO3, CaSO3, CaSO4, Ca (ClO) 2 etc.) generated during chemical reactions at the same time Rapid vaporization explosion escape, causes calcified material surface to leave a large amount of ultrafine micropore cave, specific surface is much larger than active carbon Specific surface become adsorptive gaseous dioxin, the ideal place of the pernicious gases substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg), Adsorption rate reaches 60~70%；1.5 times or so of alkaline ratio injected volume improves fluidized bed and cyclonic separation collector simultaneously Interior alkaline dust concentration, to inhibit the generation of dioxin to a certain extent.Its chemical equation are as follows:

2 (excess)=CaCO3 ↓+H2O of CO2+Ca (OH)；

2CO2 (excess)+Ca (OH) 2=Ca (HCO3) 2；

SO2+Ca (OH) 2===CaSO3+H2O；SO3+Ca (OH) 2=CaSO4 ↓+H2O；

2Cl2+2Ca (OH) 2=CaCl2+Ca (ClO) 2+2H2O；CaCO3+2HCl=CaCl2+H2O+CO2 ↑

The advantages of compared with the exhaust-gas treatment mode of traditional spray desulfurization washing tower and alkaline washing tower, is: half dry type desulfurization Fluidized bed plant has the function of except efficient depickling that there are also the absorption pernicious gases substances such as heavy metal and dioxin, and The function of the generation of dioxin is inhibited to a certain extent；Solve the difficulty that water is transported in remote water-deficient area, Yi Jiqi simultaneously Required the problems such as using a large amount of softened water expense and its cost for wastewater treatment.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (g), carbon is set at Venturi throat Sour hydrogen sodium chemicals dosing plant high flow rate sprays window, to guarantee that sodium bicarbonate powder and flue gas middle acid substance enter its special construction Cylinder in, have enough residence times, be sufficiently mixed under maelstrom degree and mutual crash situation and carry out chemical reaction reach To efficient desulfurization deacidification effect, occurred with preventing excessive sulfur from entering in catalyst cat ceramic fibre pipe deduster HCL, SO2 poisoning.It is high that one active carbon chemicals dosing plant is set at the injection window opposite of sodium bicarbonate dosing again simultaneously Flow velocity sprays window, has enough residence times in the mixed flow space to guarantee big flow-disturbing degree, allow active carbon substantially effectively Adsorb heavy metal arsenic (As), selenium (Se), mercury (Hg), the pernicious gases substance such as dioxin.Solves traditional acid-base neutralization simultaneously The problems such as required for scrubbing tower using a large amount of softened water expense and its cost for wastewater treatment.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (h), the ceramic fibre chimney filter dedusting The chimney filter material of device is that alumina silicate fibre and inorganic adhesive agent are composed, good chemical stability, in 250~375 degree of temperature It spends operation in environment to use, the filter efficiency that exhaust gas dust passes through its interfiber pore is less than 5mg/Nm3.

Meanwhile there is the calcium hydroxide circle filter cake pipe of a circle outer clip shell type in the outer surface of every chimney filter, is an independent denitration With the fixed bed for eliminating dioxin chemical reaction；And each chimney filter plays and upsets the motion profile of flue gas stream, so pottery The useful space part of porcelain fiber chimney filter deduster is the high-efficiency mixed flow desulfurization depickling being combined by thousands of chimney filter Solid Beds Chemical reaction place, to ensure that the residence time of high-temperature flue gas is longer, chemical reaction effect is more preferable.By spraying carbonic acid Hydrogen sodium (NaHCO3) is commonly called as 2 basic agent of sodium bicarbonate or calcium hydroxide Ca (OH), to enhance the sour gas in removal high-temperature flue gas The ability of body substance chemical reaction, so that reaching HCL removal rate is up to 97%；SO2 removal rate is up to 95% desulfurization depickling effect Fruit.

Meanwhile 8% ammonium hydroxide reducing agent of SCR selective catalytic reduction being ejected into effective sky of ceramic fibre chimney filter deduster In, under 230~400 DEG C of flue gas environment temperatures, through catalyst catalyst (using titanium dioxide as carrier, with vanadic anhydride or Tungstic acid or molybdenum trioxide are activating agent) catalysis accelerates chemical reaction effect, so that nitrous oxides selectivity reduction is harmless The N2 and H2O of change；Denitration efficiency is greater than 85%.

Meanwhile under the action of vanadium titanium tungsten catalyst, forces dioxin and 3% oxygen to be chemically reacted, be broken down into The innoxious gaseous substance discharge such as CO2, H2O, HCl, dioxin removal efficiency > 91.7%.Remove dioxin chemical reaction equation Formula:

C12HnCl8-nO2+ (9+0.5n) O2=(n-4) H2O+12CO2+ (8-n) HCl

From the above mentioned, the nuisances such as the dedusting of catalyst cat ceramic fiber chimney filter collector for duster, desulphurization and denitration, elimination dioxin Matter is the disposition work pattern of four unifications, is washed instead of traditional pulsed jet cloth filter, boiler furnace denitration, acid spray Wash the components processes such as tower, alkaline spray scrubber, atomizing chilling tower and active carbon injection apparatus；Solves traditional injection Later process caused by active carbon is handled and is used required for problem and traditional spray desulfurization washing tower and alkaline washing tower The problems such as a large amount of softened water expense and its cost for wastewater treatment.

As a kind of innovation to technical solution of the present invention, using novel high temperature

The flue gas track route of plasma technique technique is that " high-temperature plasma melts burner hearth+dual firing chamber+boiler+gas-gas The tupes such as heat exchanger+recirculating fluidized bed+dry desulfurization deacidifying device+ceramic fibre chimney filter deduster+air-introduced machine+chimney ". Its described high-temperature plasma melts burner hearth, dual firing chamber, boiler, gas-to-gas heat exchanger, flying dust collecting box, recirculating fluidized bed, dry method Desulfurization deacidifying device, ceramic fibre chimney filter deduster, air-introduced machine and chimney are that the gas circuit of ten high-temperature flue gas is connected.Replace The flue gas track route of domestic mainstream conventional plasma body technique, be " high-temperature plasma melt burner hearth+dual firing chamber+boiler+ Chilling tower+half dry type desulfurizing tower+spray pulverized limestone, activated-carbon device+bag filter+wet type acidic cleaning tower+wet type alkalinity are washed Wash tower+steam heat-exchanging heater+chimney etc. " processing mode.The E that the dual firing chamber of conventional plasma body technique must match sufficient amount is empty Gas excess coefficient, the problem for causing the big processing cost of exhaust-gas treatment amount high.

It is same as above, using SNCR denitration device in boiler furnace and SCR denitration device in ceramic fibre chimney filter dedusting 8% ammonium hydroxide reducing agent is sprayed in step process in device, to realize denitration purpose up to standard.Pass through boiler and gas-to-gas heat exchanger Combined heat exchange cools form, to reach semidry-method recirculating fluidized bed and dry method Venturi desulfurization deacidification technique item Part, it is desirable that less than 350 degree suitable environments at a temperature of in desulfurization depickling and chemical reaction effect.Using semidry-method recirculating fluidized bed It is combined with dry method Venturi, half dry type lime white is delivered by the ratio of the 1:1.4 according to set amount~1.6 and is passed in quartz sand Under the catalysis disturbance of heat carrier, acid-base neutralization chemical reaction is completed, the effect of desulfurization depickling is quite obvious.By launching lime Stone and calcium oxide or the spray basic anhydride such as ammonia, come prevent or reduce hydrogen chloride it is further decompose after be formed by chloride ion Flying dust concentration, density and the churning of source and a variety of basic agents reache a certain level and PCDD/Fs are inhibited to be formed and arranged The purpose put.The ultra-fine adsorptive gaseous dioxin in scintilla cave of calcium compound, heavy metal arsenic (As), selenium (Se), mercury (Hg) etc. Harmful substance, adsorption rate reach 60~70%.

It is same as above, neutralization chemical reaction is carried out using the acidic materials in sodium bicarbonate powder and high-temperature flue gas, it is ensured that Acidic materials concentration, magnitude contained in high-temperature flue gas before feeding ceramic fibre chimney filter deduster, it is necessary to meet technology Parameter request；The catalyst catalyst of ceramic fibre chimney filter deduster is avoided to meet with SO2 poisoning, it is anti-that chemistry occurs with excessive ammonium hydroxide The sticky salt attachment such as ABS, ammonium sulfate (NH4) 2SO4, ammonium hydrogen sulfate NH4HSO4 and obstruction ceramic fibre chimney filter should be generated； And SiO2 silica reacts with HF hydrofluoric acid and generates the events such as Gaseous silicon tetrafluoride corrosion ceramic fibre chimney filter.In venturi Injection window, spray the acid in sodium bicarbonate sodium bicarbonate (NaHCO3) or 2 powder of calcium hydroxide Ca (OH) and high-temperature flue gas Matter occurs to neutralize chemical reaction, to reach efficient desulfurization depickling purpose.In the injection window of venturi, active carbon is sprayed SO2, HF, dioxin are expeditiously adsorbed, the harmful substances such as heavy metal Hg (Hg) effectively prevent ceramic fibre chimney filter dedusting The catalyst of device/catalyst meets with SO2 and mercury (Hg) poisoning and the event of HF corrosion ceramic fibre chimney filter occurs.Pass through catalyst The dedusting function of cat ceramic fiber chimney filter deduster, exhaust gas dust make filter efficiency be less than 5mg/Nm3.Meanwhile every Chimney filter is independent denitration and the fixed bed for eliminating dioxin chemical reaction, by injection sodium bicarbonate (NaHCO3) come with Sour gas substance in high-temperature flue gas chemically reacts, and reaches HCL removal rate and is up to 97%；SO2 removal rate is up to 95% Desulfurization deacidification effect.Meanwhile 8% ammonium hydroxide reducing agent is sprayed using SCR selective catalytic reduction and is removed to ceramic fibre chimney filter In dirt device, accelerate chemical reaction effect through catalysis, so that nitrous oxides selectivity reduction is innoxious N2 and H2O, denitration effect Rate is greater than 85%.Meanwhile under the action of vanadium titanium tungsten catalyst, forces dioxin and 3% oxygen to be chemically reacted, divided Solution is the innoxious gaseous substance discharge such as CO2, H2O, HCl, dioxin removal efficiency > 91.7%.

It ibid summarizes, in the exhaust-gas treatment mode of innovative high-temperature plasma body technique, using " boiler+gas _ gas heat exchanger The tupes such as+recirculating fluidized bed+dry desulfurization deacidifying device+ceramic fibre chimney filter deduster ", instead of traditional pulse cloth Bag dust collector dedusting, boiler furnace denitration, acid spray scrubber, alkaline spray scrubber, atomizing chilling tower and active carbon The components process such as injection apparatus, saves a large amount of equipment investment and fund, reduces the occupied area of equipment, reduces solid The labour wage of the operation cost of waste processing, maintenance of equipment maintenance cost and operator.It thoroughly solves traditional It sprays required for the processing problem of later process caused by active carbon and traditional spray desulfurization washing tower and alkaline washing tower The problems such as using a large amount of softened water expense and its cost for wastewater treatment.

As a kind of innovation to technical solution of the present invention, in above-mentioned steps (a) (b) (c), by flying dust, dangerous waste object Three kinds of different characteristics materials of residue and cullet and other microelements, after completing metering weighing according to the proportion of setting respectively It carries out being uniformly mixed stirring operation；It is at the uniform velocity sent into high-temperature plasma burner hearth by conveying batcher again and is melt into vitreum, reached The requirement of the technical conditions such as glass cermaic plate, construction material or sculpture for city to industrial scraper slagging machine place mat.In N group plasma Under 1600~2500 degree of torch of the thermal energy effect of body generator, all organic matters resolve into incoagulable gas in moment, and The vaporization of aqueous solution molecule；Inorganic matter and heavy metal are melt into semifluid in the shallow crucible of melting；And it is specially independent to devise A piece plasma generator torch rifle aims at the overflow pipe of semi-fluid body unit, and releases very high thermal energy to ensure Its semifluid swimmingly overflows in vitreum collecting box, forms vitreum after cooling；Cooling water pipeline uses double fastener simultaneously Set insurance design scheme, effectively prevents the generation of cooling wet part water leakage accident.The high-temperature plasma burner hearth is set There is safety explosion-proof valve, is connected with high-temperature flue gas air duct and vitreum air duct of slagging tap, it is therefore an objective to prevent the semi-fluid of bottom overflow pipe The explosive incident that body frozen plug and cooling water leakage instant vaporization cause.The high-temperature flue gas containing dust, incoagulable gas, It is to be processed that the gaseous materials such as vaporization hydrone enter dual firing chamber.

As a kind of innovation to technical solution of the present invention, in above-mentioned (c) step, the shallow crucible shape of melting is such as Same clam shell, depth areas is that high temperature plasma flame melts flying dust, the main operating area of residue windrow, by the special material such as corundum brick Expect disposable punching block pouring molding.Inorganic matter and heavy metal are melt into semifluid, valuable high desnity metal in the shallow crucible of melting And common metal is deposited in special vessels crucible by different level and periodically drains back into receipts.Low density non-metallic semifluid passes through above-mentioned The exudation of crucible top overflow launder carrys out the bottom overflow pipe outflow through high-temperature plasma molten mass burner hearth；The semifluid enters glass Vitreum is formed after body collecting box is cooling, it is then outer to be transported to safety zone storage.It is described to melt burner hearth phase with high-temperature plasma Matched subsidiary engine and control system have: plasma generator, plasma electrical source and measure and control device, the equipment of making nitrogen and safety are anti- Quick-fried device etc..The torch rifle of the high-temperature plasma melting roof of the furnace setting N group plasma generator is into burner hearth It melts both shallow crucible reaction area and melting semifluid channel unit and thermal energy is provided.It is set at the top of the high-temperature plasma burner hearth There is safety explosion-proof valve.

As a kind of innovation to technical solution of the present invention, in above-mentioned (c) step, the high-temperature plasma melting Burner hearth is equipped with safe explosion-proof device, with conveying batcher, plasma generator, dual firing chamber and its high-temperature flue gas air duct and glass The slag tap gas circuit in air duct of body is connected.The high-temperature plasma burner hearth and plasma electrical source and measure and control device, nitrogen processed Equipment, plasma generator are connected.

As a kind of innovation to technical solution of the present invention, in above-mentioned (d) step, high-temperature plasma melts burner hearth The high-temp waste gas of interior generation enters dual firing chamber, provides 1500 by microwave plasma (can also use DC inversion high-temperature plasma) Degree forces heated break apart of the strand of the pollutants such as dioxin, achievees the purpose that harmlessness disposing as thermal energy is burned.Institute The coarseparticulate for stating dual firing chamber's generation enters dust collecting box by the ash discharging hole of its underpart；Separately there are some fine particle flying dusts with high temperature cigarette It is to be processed that air-flow enters boiler.The dual firing chamber and high-temperature plasma melting burner hearth, plasma generator, safety anti-explosive fill It sets, the gas circuit of boiler and flying dust collecting box is connected.The dual firing chamber and plasma generator, safe explosion-proof device, Plasma electrical source and measure and control device, the equipment of making nitrogen are connected.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (e), high temperature that the dual firing chamber sends out Flue gas enters in boiler furnace, and room temperature softened water is heated to 180 DEG C of steam；The high-temperature flue gas exported after boiler heat exchange drops to 800 degree or so.The boiler is connected with the flue gas path of dual firing chamber, gas-to-gas heat exchanger, flying dust header.The boiler It is connected with industrial softened water, steam three.The SNCR denitration reduction method, to 850~1100 DEG C of area sprays of fire box temperature Nitrogen oxides in high-temperature flue gas is reduced to harmless nitrogen and water by 8% ammonium hydroxide reducing agent.The boiler and SNCR denitration fill It sets and is connected.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (e), 800 DEG C of the boiler output High-temperature flue gas enters in gas-to-gas heat exchanger, and cold air is exchanged heat to 200~400 DEG C of hot-airs.The gas-to-gas heat exchanger output Less than 350 DEG C high-temperature flue gas enter it is to be processed in circulating fluidized bed device.The gas-to-gas heat exchanger and boiler, flying dust header, Circulating fluidized bed device flue gas path is connected.The gas-to-gas heat exchanger and cold air, hot air duct three's air gas circuit It is connected.The gas-to-gas heat exchanger and flying dust header, conveying device, flying dust holding vessel four materials be connected to and be connected.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (f), the recirculating fluidized bed and gas- Gas heat exchanger, venturi dry desulfurization device, cyclonic separation collector, flying dust header five flue gas paths be connected.It is described Both recirculating fluidized bed and calcium hydroxide chemicals dosing plant are connected.The high-temperature flue gas enters in burner hearth from recirculating fluidized bed bottom Quartz sand boils fluidization region, and delivers the half dry type lime white come in the catalysis of quartz sand heat transfer medium, and is boiling It is obvious to rise progress acid-base neutralization chemical reaction, desulfurization deacidification effect under mixed flow state.What the cyclonic separation collector was collected into The pulverized limestone of part escape, auto-returned, which is launched into burner hearth, again continues to participate in above-mentioned acid-base neutralization chemical reaction operation. Hydrone meeting rapid vaporization explosion escape in the calcium compound that the chemical reaction generates, the ratio table in the hydrone cave left Area is much larger than the specific surface area of active carbon, and the ideal field for becoming the pollutants such as adsorptive gaseous dioxin is hidden oneself institute, and adsorption rate reaches To 60~70%.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (g), the venturi dry desulfurization is de- Sour device is connected with four flue gas paths of recirculating fluidized bed, ceramic fibre chimney filter deduster and flying dust header.The text mound In both dry desulfurization deacidifying device and active carbon chemicals dosing plant be connected；The venturi dry desulfurization deacidifying device and carbonic acid Both hydrogen sodium chemicals dosing plants are connected.The venturi dry desulfurization deacidifying device is removed with recirculating fluidized bed, ceramic fibre chimney filter Dirt device and flying dust header, active carbon chemicals dosing plant, sodium bicarbonate chemicals dosing plant six are connected.

Sodium bicarbonate chemicals dosing plant high flow rate is set at the Venturi throat and sprays window, acid in sodium bicarbonate powder and flue gas Property substance in the cylinder of its special construction, sufficient dwell time carry out maelstrom degree mixing acid-base neutralization chemical reaction.Institute It states and active carbon chemicals dosing plant high flow rate injection window is set at Venturi throat, have enough stop in the mixed flow space of big flow-disturbing degree The time is stayed, active carbon is allowed fully to adsorb the poisonous and harmful substances such as dioxin.

As a kind of improvement to technical solution of the present invention, in above-mentioned steps (h), the ceramic fibre chimney filter dedusting Device is connected with four flue gas paths of venturi dry desulfurization deacidifying device, air-introduced machine and flying dust header.The ceramic fibre Both chimney filter deduster and SCR denitration chemicals dosing plant are connected.The ceramic fibre chimney filter deduster and venturi dry desulfurization Deacidifying device, SCR denitration chemicals dosing plant, air-introduced machine and flying dust header five are connected.

The ceramic fibre chimney filter outer surface adheres to vanadium titanium tungsten catalyst (catalyst), and in ceramic fibre chimney filter deduster 8% atomized ammonia reducing agent is sprayed in the useful space；Under 250-330 DEG C of flue gas environment temperature, through catalyst (with titanium dioxide For carrier, using vanadic anhydride or tungstic acid or molybdenum trioxide as activating agent) catalysis accelerates reagentia, so that nitrogen oxides Selective reduction is innoxious N2 and H2O；It can be with the nitrogen oxides of removal rate > 95%；Simultaneously in the effect of vanadium titanium catalyst Under, the non-poisonous materials such as CO2, H2O, HCl can be broken down into dioxin removal efficiency > 91.7%, dioxin and the reaction of 3% oxygen Matter discharge.The collocation sodium bicarbonate (NaHCO3) or the different alkaline agents of calcium hydroxide Ca (OH) 2, can remove sour gas (SO2, HCl, HF) hydrogen chloride removal rate > 97%, oxysulfide removal rate > 95%.The ceramic fibre chimney filter deduster dust removing effects contain Dust Capacity is less than 5mg/m3.

As a kind of innovation to technical solution of the present invention, the high-temperature plasma melting burner hearth and conveying are fed Machine, vitreum collecting box, dual firing chamber, boiler, gas-to-gas heat exchanger, flying dust header, recirculating fluidized bed, venturi dry desulfurization are de- Sour device, ceramic fibre chimney filter deduster, air-introduced machine and chimney are that both systems ten flue gas gas circuit is connected.

As a kind of innovation to technical solution of the present invention, metering weighing transportation system and conveying batcher, It is that system solid material is connected that high-temperature plasma, which melts burner hearth with vitreum collecting box,.Dual firing chamber and boiler, gas-gas Heat exchanger, flying dust header, recirculating fluidized bed, venturi dry desulfurization deacidifying device and ceramic fibre chimney filter deduster are system The conveying of seven fly ash particulates is connected.

It is all to be not specifically noted in technical solution of the present invention, it can be by using the conventional hand in this field Section realizes the technical program.

Therefore, a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system provided by the invention, no Flying dust, residue can only be mixed and carry out innoxious melting disposition together, and can be realized thorough volume reduction, nothing The treatment effect of evilization and recycling, can be to avoid generation semifluid frozen plug overflow pipe and cooling water leakage moment vapour Change explosive incident；It is designed using the special construction of the advanced technologies such as microwave plasma and dual firing chamber, it is surplus woth no need to E excessive oxygen The additional conditions of remaining coefficient, to reduce the treating capacity of exhaust gas；Using " boiler+gas-to-gas heat exchanger+recirculating fluidized bed+dry method The innovative high-temperature plasma harmless treatment exhaust gas mode such as desulfurization deacidifying device+ceramic fibre chimney filter deduster ", thoroughly Ground solves the problems, such as the composition generation again of the dioxin of traditional technology；It sprays later process caused by active carbon and handles problem, And required for traditional spray desulfurization washing tower and alkaline washing tower using a large amount of softened water expense and its wastewater treatment at This problems such as.The capital investment of equipment is saved, occupied area is small；The Recovery and recycle utilization rate of cullet class is improved, is dropped Low operation cost, maintenance maintenance expense, day output is big, and treatment effeciency is high, and better processing effect, energy consumption is lower, and safety Environmental protection.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:

Fig. 1 is a kind of signal of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system of the present embodiment Figure；

In attached drawing, 01 is flying dust, and 02 is bulk cement storage tank, and 03 is molding machine, and 04 is vibrating screen, and 05 is fine ash material, and 06 is danger Residual waste, 07 is cullet, and 08 is repository, and 09 is) crusher, 10 be middle roll-over, and 11 be to measure weighing conveying device, 12 Burner hearth is melted for high-temperature plasma to convey batcher, 13, (1301) are plasma generator, and (1302) are plasma Power supply and measure and control device, (1303) are the equipment of making nitrogen, and 1304 be safe explosion-proof device, and 14 be vitreum collecting box, and 15 be two combustions Room, 16 be boiler, and 1601 be SNCR denitration device, and 1602 be industrial softened water, and 1603 be steam, and 17 be gas _ gas heat exchanger, 1701 be cold air, and 1702 be hot-air, and 18 be circulating fluidized bed device, and 1801 be niter mortar chemicals dosing plant, and 1802 be rotation Wind separates and collects device, and 19 be venturi dry desulfurization device, and 1901 be sodium bicarbonate chemicals dosing plant, and 1902 fill for active carbon dosing It sets, 20 be ceramic fibre chimney filter deduster, and 2001 be SCR chemicals dosing plant, and 21 be air-introduced machine, and 22 be chimney, and 23 be line monitoring dress It sets, 24 be flying dust collecting box, and 25 be conveying device.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only invented to explain, and do not have to It is of the invention in limiting.

Present embodiments provide a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system, such as Fig. 1 It is shown, include the following steps:

(a) dangerous waste material pretreatment system

By other unit's transport come flying dust (1) enter bulk cement storage tank (2) keep in, later by special transfer device be sent at Type machine (3) roll-in spheroiding is squeezed into block material, then is sent into screening separation in vibrating screen (4) through conveyer, meets molding The material of specifications parameter is transported to be processed in middle roll-over (10)；Undesirable fine ash material back to previous process at It is to be processed in type machine (3).

The danger residual waste (6) that other unit's transport comes is entered dedicated storage library (8) to keep in, is then sent by conveyer After entering crusher (9) break process, then it is delivered to through conveyer to be processed in roll-over in residue (10).

The cullet (7) that outsourcing comes is sent into cullet repository (8) to keep in, crusher is then sent by conveyer (9) it after break process, then is delivered to through conveyer to be processed in roll-over in cullet (10).

(b) metering weighing is conveyed to material system

The technological parameter according to set by requirement of actual working condition, by the dedicated middle roll-over (10) of above-mentioned three kinds of different materials, and Other microelements complete the mixing operation of metering weighing and proportioning in weighing balance weight dispensing device (11) respectively, later wait locate It manages material and carries out uniformly conveying feeding from dedicated transport batcher (12) to high-temperature plasma melting burner hearth (13).

(c) high-temperature plasma molten processing system

Treating material after above-mentioned mixing match is thrown to high-temperature plasma melting burner hearth (13) by conveying batcher (12) Melting crucible in, all organic matters are resolved into incoagulable gas and aqueous solution molecule and vaporized by moment；Inorganic matter and again Metal is melt into semifluid in the shallow crucible of melting, the bottom overflow pipe outflow through high-temperature plasma molten mass burner hearth (13)；Institute The temporary into vitreum collecting box (14) of vitreum is formed after stating cooling, then the outer safety zone that is transported to is stored again.It is described to contain It is to be processed that the gaseous materials such as dust high-temperature flue gas, incoagulable gas, vaporization hydrone enter dual firing chamber (15).

The subsidiary engine to match with high-temperature plasma melting burner hearth (13) and control system have: plasma generator (1301), plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303) and safe explosion-proof device (1304) etc..It is described It is anti-that high-temperature plasma melts melting shallow crucible of setting N group plasma generator (1301) into burner hearth at the top of burner hearth (15) Both area and melting semifluid channel unit is answered to provide thermal energy

The high-temperature plasma burner hearth (13) be equipped with safe explosion-proof device (1304), with conveying batcher (12), etc. from The slag tap gas circuit in air duct of daughter generator (1301), dual firing chamber (15) and its high-temperature flue gas air duct and vitreum is connected. The high-temperature plasma burner hearth (13) and plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303), plasma Body generator (1301) four is connected.

(d) microwave plasma dual firing chamber incinerating and treating device

The high-temp waste gas generated in above-mentioned high-temperature plasma melting burner hearth (13) enters dual firing chamber (15), by microwave plasma (can also use DC inversion high-temperature plasma), which provides, is greater than 1500 degree as thermal energy is burned, and forces point of the pollutants such as dioxin Heated break apart of subchain is come, and achievees the purpose that harmlessness disposing.The coarseparticulate generated in the dual firing chamber (15) is by its underpart Ash discharging hole enter dust collecting box (24)；Separately there are some fine particle flying dusts with high-temperature flue gas stream to enter boiler (16) to be processed.

The dual firing chamber (15) and high-temperature plasma melting burner hearth (13), plasma generator (1301), safety are prevented The gas circuit of quick-fried device (1304), boiler (16) and flying dust collecting box (24) is connected.The dual firing chamber (15) and plasma Body generator (1301), safe explosion-proof device (1304), plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303) Five are connected.

(e) boiler and gas-to-gas heat exchanger cooling and dedusting system

Entered in waste heat boiler (16) burner hearth by the high-temperature flue gas that above-mentioned dual firing chamber (15) outlet end transports out, it will be industrial Softened water (1602) is heated to power generation, drying, heating of 180 DEG C of the steam (1603) as later process, and bathing etc. is used.Institute Stating the dust object that waste heat boiler (16) emits, to enter flying dust header (24) to be processed.The SNCR denitration device (1601) is Selective non-catalytic reduction method (SNCR) is under the action of no catalyst, to (the spray of 850~1100 DEG C of area sprays of fire box temperature 8% ammonium hydroxide, vaporization urea) reducing agent, the nitrogen oxides in high-temperature flue gas is reduced to harmless nitrogen and water.Reducing agent only and NOx reaction in high-temperature flue gas, does not react generally with oxygen.SNCR is usually used in boiler furnace, and NOx discharge is down to about 200mg/Nm3, denitration efficiency 30~60%, investment cost is lower.

800 DEG C of high-temperature flue gas that above-mentioned waste heat boiler (16) emits enter in gas-to-gas heat exchanger (17), by the external world 20 DEG C of cold air (1701) heat exchange of environment temperature are used to 200~400 DEG C of hot-airs (1702) as drying, heating.It is described It is to be processed that the dust object that gas-to-gas heat exchanger (17) emits enters flying dust header (24).Gas-to-gas heat exchanger (17) output Less than 350 DEG C high-temperature flue gas enter it is to be processed in circulating fluidized bed device (18).

(f) circulating fluid bed semi-drying method desulfurization depickling, absorption dioxin device

Less than the 350 DEG C high-temperature flue gas exported by above-mentioned gas-to-gas heat exchanger (17), enter burner hearth from recirculating fluidized bed (18) bottom It is completed under the catalysis disturbance of quartz sand heat transfer carrier with the half dry type lime white come in is delivered in interior boiling fluidization region Acid-base neutralization chemical reaction, desulfurization deacidification effect are obvious.Half dry type lime white is thrown according to the ratio of 1:1.4~1.6 of set amount It puts, chemically reacts required use to ensure that the basic agent in above-mentioned recirculating fluidized bed (18) burner hearth meets its acid-base neutralization Amount；Meanwhile dust flying dust concentration, density and the churning of a variety of basic anhydride must also be enhanced to a certain extent to inhibit The formation and discharge of PCDD/Fs；The acidic materials in half dry type limestone slurry (calcium oxide) and high-temperature flue gas launched simultaneously are sent out Biochemical reaction, the H2O hydrone that the calcium compound (CaCO3, CaSO3, CaSO4, Ca (ClO) 2 etc.) of generation is inner can rapid vapour Change explosion to flee from, causes to leave a large amount of superfine cave (it can be appreciated that H2O molecular sieve) in calcified material body；It compares table Area becomes adsorptive gaseous dioxin, the nocuousness such as heavy metal arsenic (As), selenium (Se), mercury (Hg) much larger than the specific surface area of active carbon The ideal of substance is hidden oneself place, and adsorption rate reaches 60~70%.

After quartz sand is come into full contact with as the fluidized-bed of catalytic media and the lime white of dispensing, necessarily there is one Lime dust particle is divided to be taken away by the high-temperature flue gas of high flow rate, so the smoke outlet in recirculating fluidized bed (18) is additionally arranged rotation Wind separates and collects device (1802)；After the pulverized limestone of extra escape is collected, launches in fluidized bed burner hearth, continue in repetition again The process for stating acid-base neutralization chemical reaction, thus referred to as recirculating fluidized bed desulfurization, absorption dioxin device.The calcium hydroxide adds Medicine device (1801) is to feed back to intelligent control according to the acid-base property concentration data detected automatically in recirculating fluidized bed (18) Center processed is adjusted the conveying feeding coal for delivering calcium hydroxide automatically into burner hearth from data executor, it is ensured that in burner hearth according to instruction Alkali concentration index meet the technical parameter requirement of design.The dust object that the fluidized bed (18) emits enters flying dust collection Case (24) is to be processed.

(g) depickling of venturi dry desulfurization, absorption dioxin device

The high-temperature flue gas that the smoke outlet of the recirculating fluidized bed (18) emits enters venturi dry desulfurization device (19) in, continue acidic materials remaining in flue gas and sodium bicarbonate powder carrying out acid-base neutralization chemical reaction；Purpose is true The acidic materials that superscale is not present in the high-temperature flue gas in ceramic fiber tube deduster (20) are recommended for admission to school to produce to catalyst/catalyst Raw HCL, SO2 poisoning.

The venturi dry desulfurization depickling mode is equipped with sodium bicarbonate chemicals dosing plant using in Venturi throat high flow rate position (1901) injection window guarantees sodium bicarbonate powder and cylinder of the flue gas middle acid substance in dry desulfurization device (19) It is interior, acid-base neutralization chemical reaction occurs under the action of having enough residence times and maelstrom degree spoiler, when being sufficiently mixed, reaches To efficient desulfurization depickling purpose.

The slaked lime powder to escape in previous process simultaneously continues to occur in soda acid in venturi dry-type desulphurization device And chemical reaction；Wherein the molecule cave of the specific surface area of calcium compound continues to adsorb dioxin, heavy metal arsenic (As), selenium simultaneously (Se), the harmful substances such as mercury (Hg).

It is described to be equipped at the right opposite that sodium bicarbonate chemicals dosing plant (1901) spray window above-mentioned, an active carbon is equally set The injection window of chemicals dosing plant (1902)；The dry desulfurization deacidifying device (19) of special design structure can satisfy active carbon needs Maelstrom degree and residence time technical conditions, adsorb dioxin, heavy metal arsenic (As), selenium (Se), mercury with carrying out extreme efficiency (Hg) harmful substances such as.

The high-temperature flue gas of the high-temperature flue gas outlet end output of the dry type desulfurizing deacidifying device (19) enters ceramic fiber tube dedusting Device (20) is to be processed.The dust object emitted in the particle dust collecting bin of the dry type desulfurizing deacidifying device (19), which enters, to fly Grey header (24) is to be processed.

(h) dedusting of ceramic fibre chimney filter deduster, desulphurization denitration, elimination dioxin device；

The dust-laden high-temperature flue gas of the high-temperature flue gas outlet end output of above-mentioned dry desulfurization deacidifying device (19) is sent into ceramic fibre filter It in pipe deduster (20), is dusted, desulfurization depickling, the disposition operation for eliminating the pernicious gases such as nitrogen oxides and dioxin.

The ceramic fibre chimney filter material is made of alumina silicate fibre and inorganic adhesive agent, and chemical stability is good, can 250~ Economical operation is carried out in 375 degree of temperature environments, dust filtration efficiency is less than 5mg/Nm3.Circle is formed outside each chimney filter The calcium hydroxide filter cake of column jacket type cylinder is an independent reaction fixed bed and can be unordered by its high-temperature flue gas generation flow-disturbing Motion profile；The effective sky in ceramic fibre chimney filter deduster (20) be combined by several hundred or even thousands of monomer chimney filters Between, become a good desulfurization depickling reaction chamber.Pass through injection sodium bicarbonate sodium bicarbonate (NaHCO3) alkaline agent powder and height Warm flue gas carries out sufficient acid-base neutralization chemical reaction, and hydrogen chloride removal rate is up to 97%；Oxysulfide removal rate is up to 95%.

It is described to use (SCR) selective catalytic reduction, 8% ammonium hydroxide reducing agent is ejected into ceramic fibre chimney filter deduster Smoke reaction room in；Under 230~400 DEG C of flue gas environment temperatures, using vanadium titanium system catalyst (catalyst) as mounting medium into Row catalysis accelerates chemical reaction, so that nitrous oxides selectivity reduction is innoxious N2 and H2O；Denitration efficiency is greater than 85%.

It is described to force dioxin and 3% oxygen to be chemically reacted under the action of vanadium titanium tungsten catalyst, be broken down into CO2, The discharge of the innocuous substances such as H2O, HCl, dioxin removal efficiency > 91.7%.

The dust object that the bottom collection storehouse of the ceramic fibre chimney filter deduster (20) emits enter flying dust header (24) to Processing.It is to be processed that the tail gas of the ceramic fibre chimney filter deduster (20) outlet end output enters air-introduced machine (21).

(i) smoke evacuation system.

150~170 DEG C for meeting local associated exhaust environmental emission standard of above-mentioned ceramic fiber tube deduster (20) output are clean Net tail gas is delivered to chimney (22) by air-introduced machine (21) and is discharged into atmosphere.In flue gas on-Line Monitor Device (23) detection discharge flue gas Flue dust, sulfur dioxide, hydrogen chloride, carbon monoxide, nitrogen oxides, rate of oxygen, carbon dioxide etc..

It should be understood that for those of ordinary skills, it can be modified or changed according to the above description, And all these modifications and variations all should belong to the protection scope that right appended by the present invention is wanted.

Claims (13)

1. a kind of high-temperature plasma harmless treatment dangerous waste object flying dust, residue technique, which comprises the steps of:

(a) dangerous waste material pretreatment system

The flying dust (01) that other unit's transport comes is entered bulk cement storage tank (02) to keep in, is sent into forms by special transfer device later Machine (03) roll-in spheroiding is squeezed into block material, then is sent into screening separation in vibrating screen (04) through conveyer, meets molding The material of specifications parameter is transported to be processed in middle roll-over (10)；Undesirable fine ash material (05) returns to previous process Molding machine (03) in it is to be processed；

The danger residual waste (06) that other unit's transport comes is entered dedicated storage library (08) to keep in, is then sent by conveyer After crusher (09) break process, then it is delivered to through conveyer to be processed in roll-over in residue (10)；

The cullet (07) that outsourcing comes is sent into cullet repository (08) to keep in, crusher is then sent by conveyer (09) it after break process, then is delivered to through conveyer to be processed in roll-over in cullet (10)；

(b) metering weighing is conveyed to material system

The technological parameter according to set by requirement of actual working condition, by the dedicated middle roll-over (10) of above-mentioned three kinds of different materials, and Other microelements complete the mixing operation of metering weighing and proportioning in weighing balance weight dispenser (11) respectively, then by special It carries out uniformly conveying feeding to high-temperature plasma melting burner hearth (13) with conveying batcher (12)；

(c) high-temperature plasma molten processing system

Above-mentioned three kinds of mixed materials in high-temperature plasma melting burner hearth (13) are thrown to by conveying batcher (12), moment will All organic matters resolve into incoagulable gas and the vaporization of aqueous solution molecule；Inorganic matter and heavy metal are melting in shallow crucible It is melt into semifluid, valuable high desnity metal and common metal, which are deposited on by different level in special vessels crucible, periodically to be drained back into It receives, low density non-metallic semifluid is oozed out by above-mentioned crucible top overflow launder come through high-temperature plasma molten mass burner hearth (13) The outflow of bottom overflow pipe；The semifluid forms vitreum after entering vitreum collecting box (14) cooling, then outer to be transported to safety Region storage, the gaseous substances such as the high-temperature flue gas containing dust, incoagulable gas, vaporization hydrone enter dual firing chamber (15) wait locate Reason；

The subsidiary engine to match with high-temperature plasma melting burner hearth (13) and control system have: plasma generator (1301), plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303) and safe explosion-proof device (1304) etc., it is described It is anti-that high-temperature plasma melts melting shallow crucible of setting N group plasma generator (1301) into burner hearth at the top of burner hearth (15) It answers area and the offer thermal energy of Unit two in semifluid channel is provided；

High-temperature plasma melting burner hearth (13) is equipped with safe explosion-proof device (1304), with conveying batcher (12), etc. from The slag tap flue gas gas circuit in air duct of daughter generator (1301), dual firing chamber (15) and its high-temperature flue gas air duct and vitreum is connected It is logical, high-temperature plasma melting burner hearth (13) and plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303), Plasma generator (1301) four is connected；

(d) microwave plasma dual firing chamber incinerating and treating device

The high-temp waste gas generated in above-mentioned high-temperature plasma melting burner hearth (13) enters dual firing chamber (15), by microwave plasma (can also use DC inversion high-temperature plasma), which provides, is greater than 1500 degree as thermal energy is burned, and forces point of the pollutants such as dioxin Subchain is achieved the purpose that harmlessness disposing by thermal destruction, the coarseparticulate generated in the dual firing chamber (15) by its underpart ash discharge Mouth enters flying dust collecting box (24)；Separately there are some fine particle flying dusts to enter in boiler (16) burner hearth with high-temperature flue gas stream wait locate Reason；

The dual firing chamber (15) and high-temperature plasma melting burner hearth (13), plasma generator (1301), safety anti-explosive fill The flue gas gas circuit for setting (1304), boiler (16) and flying dust collecting box (24) is connected, the dual firing chamber (15) and plasma Body generator (1301), safe explosion-proof device (1304), plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303) Five are connected；

(e) boiler and gas-to-gas heat exchanger cooling and dedusting system

(1) waste heat boiler (16) burner hearth boiler unit: is entered by the high-temperature flue gas that above-mentioned dual firing chamber (15) outlet end transports out In, industrial softened water (1602) is heated to drying, the heating of 180 DEG C of steam (1603) as later process, has a bath etc. it To be processed, the SNCR denitration device that enters flying dust collecting box (24) with, the dust object that the waste heat boiler (16) emits It (1601) is selective non-catalytic reduction method under the action of no catalyst, to (the spray of 850~1000 DEG C of area sprays of fire box temperature 8% ammonium hydroxide, vaporization urea) reducing agent, the nitrogen oxides in high-temperature flue gas is reduced to harmless nitrogen and water, reducing agent only and NOx reaction in high-temperature flue gas, does not react generally with oxygen.SNCR is usually used in boiler furnace, and NOx discharge is down to about 200mg/Nm3, denitration efficiency 30~60%, investment cost is lower；

(2) gas-to-gas heat exchanger unit: 800 DEG C of high-temperature flue gas that above-mentioned waste heat boiler (16) emits enter gas-to-gas heat exchanger (17) in, by extraneous 20 DEG C of cold airs (1701) heat exchange of environment temperature to 200~400 DEG C of hot-airs (1702), as drying, Heating is used, and it is to be processed that the dust object that the gas-to-gas heat exchanger (17) emits enters flying dust collecting box (24), the gas- Less than 350 DEG C high-temperature flue gas of gas heat exchanger (17) output enter to be processed in circulating fluidized bed device (18)；

(f) circulating fluid bed semi-drying method desulfurization depickling, absorption dioxin device

Less than the 350 DEG C high-temperature flue gas exported by above-mentioned gas-to-gas heat exchanger (17), enter burner hearth from recirculating fluidized bed (18) bottom It is completed under the catalysis disturbance of quartz sand heat transfer carrier with the half dry type lime white come in is delivered in interior boiling fluidization region Acid-base neutralization chemical reaction, desulfurization deacidification effect is obvious, and half dry type lime white is thrown according to the ratio of 1:1.4~1.6 of set amount It puts, chemically reacts required use to ensure that the basic agent in above-mentioned recirculating fluidized bed (18) burner hearth meets its acid-base neutralization Amount；Dust flying dust concentration, density and the churning of a variety of basic anhydride must also be enhanced to a certain extent simultaneously to inhibit The formation and discharge of PCDD/Fs；The acidic materials in half dry type limestone slurry (calcium oxide) and high-temperature flue gas launched simultaneously are sent out Biochemical reaction, the H2O hydrone that the calcium compound (CaCO3, CaSO3, CaSO4, Ca (ClO) 2 etc.) of generation is inner can rapid vapour Change explosion to flee from, leads to leave a large amount of superfine hydrone cave in calcium compound body (it can be appreciated that H2O molecule Sieve)；Its specific surface area becomes adsorptive gaseous dioxin, heavy metal arsenic (As), selenium (Se), mercury much larger than the specific surface area of active carbon (Hg) etc. the ideal of harmful substances is hidden oneself place, and adsorption rate reaches 60~70%,

After quartz sand is come into full contact with as the fluidized-bed of catalytic media and the lime white of dispensing, some inevitable stone Grey dust particles are taken away by the high-temperature flue gas of high flow rate, so the smoke outlet in recirculating fluidized bed (18) is additionally arranged whirlwind point From collector (1802)；It after the pulverized limestone of extra escape is collected, launches again in fluidized bed burner hearth, continues to repeat above-mentioned acid The process of alkali neutralization chemical reaction, thus referred to as recirculating fluidized bed desulfurization, absorption dioxin device, the calcium hydroxide dosing dress Setting (1801) is fed back in intelligentized control method according to the acid-base property concentration data detected automatically in recirculating fluidized bed (18) The heart is adjusted the conveying feeding coal for delivering calcium hydroxide automatically into burner hearth, according to instruction from data executor to ensure in burner hearth Alkali concentration index meets the technical parameter requirement of design, and the dust object that the fluidized bed (18) gives off enters flying dust collecting box (24) to be processed；

(g) depickling of venturi dry desulfurization, absorption dioxin device

The high-temperature flue gas that the smoke outlet of the recirculating fluidized bed (18) gives off enters venturi dry desulfurization device (19) In, continue acidic materials remaining in flue gas and sodium bicarbonate powder carrying out acid-base neutralization chemical reaction；Purpose, which is to ensure that, to be sent Enter the acidic materials that there can not be superscale in the high-temperature flue gas in ceramic fibre chimney filter deduster (20), to its catalyst/urge Agent generates HCL, SO2 poisoning,

The venturi dry desulfurization depickling mode is equipped with sodium bicarbonate chemicals dosing plant using in Venturi throat high flow rate position (1901) injection window guarantees sodium bicarbonate powder and flue gas middle acid substance in venturi dry desulfurization device (19) In cylinder, has and be sufficiently mixed under the action of enough residence times and maelstrom degree spoiler, while reaching efficient The desulfurization depickling purpose of acid-base neutralization chemical reaction, while the slaked lime powder to escape in previous process continues to do in venturi Acid-base neutralization chemical reaction occurs in formula desulfurizer；Wherein the molecule cave of the specific surface area of calcium compound continues to adsorb simultaneously Dioxin, the harmful substances such as heavy metal arsenic (As), selenium (Se), mercury (Hg),

It is described to be equipped at the right opposite that sodium bicarbonate chemicals dosing plant (1901) spray window above-mentioned, an active carbon is equally set The injection window of chemicals dosing plant (1902)；The dry desulfurization deacidifying device (19) of special design structure can satisfy active carbon needs The technical conditions of maelstrom degree and residence time expeditiously adsorb dioxin, heavy metal arsenic (As), selenium (Se), mercury to realize (Hg) effect of harmful substances such as,

The high-temperature flue gas of the high-temperature flue gas outlet end output of the venturi dry type desulfurizing deacidifying device (19) enters ceramic fibre It is to be processed in chimney filter deduster (20), it is given off in the particle dust collecting bin of the venturi dry type desulfurizing deacidifying device (19) Dust object to enter flying dust collecting box (24) to be processed,

(h) dedusting of ceramic fibre chimney filter deduster, desulphurization denitration, elimination dioxin device；

The dust-laden high-temperature flue gas of the high-temperature flue gas outlet end output of above-mentioned venturi dry desulfurization deacidifying device (19) is sent into ceramics It in fiber chimney filter deduster (20), is dusted, desulfurization depickling, the disposition work for eliminating the pernicious gases such as nitrogen oxides and dioxin Industry,

The ceramic fibre chimney filter material is made of alumina silicate fibre and inorganic adhesive agent, and chemical stability is good, can 250~ Economical operation is carried out in 375 degree of temperature environments, dust filtration efficiency is less than 5mg/Nm3, forms circle outside each chimney filter The calcium hydroxide filter cake of column jacket cylinder formula is an independent reaction fixed bed, and flow-disturbing can be caused unordered its high-temperature flue gas Motion profile；Thus the ceramic fibre chimney filter of several hundred or even thousands of monomers is combined into a ceramic fibre chimney filter deduster (20), the useful space is a good desulfurization depickling reaction chamber, passes through and sprays sodium bicarbonate sodium bicarbonate (NaHCO3) alkaline agent powder End carries out sufficient acid-base neutralization chemical reaction with high-temperature flue gas, and hydrogen chloride removal rate is up to 97%；Oxysulfide removal rate is high Up to 95%；

It is described to use (SCR) selective catalytic reduction, 8% ammonium hydroxide reducing agent is ejected into ceramic fibre chimney filter deduster (20) Smoke reaction room in；Under 230~400 DEG C of flue gas environment temperatures, using vanadium titanium system catalyst (catalyst) as mounting medium into Row catalysis accelerates chemical reaction, so that nitrous oxides selectivity reduction is innoxious N2 and H2O；Denitration efficiency is greater than 85%.

It is described to force dioxin and 3% oxygen to be chemically reacted under the action of vanadium titanium tungsten catalyst, be broken down into CO2, The discharge of the innocuous substances such as H2O, HCl, dioxin removal efficiency > 91.7%；

The dust object that the bottom collection storehouse of the ceramic fibre chimney filter deduster (20) gives off enter flying dust collecting box (24) to Processing, it is to be processed that the tail gas of the ceramic fibre chimney filter deduster (20) outlet end output enters air-introduced machine (21)；

(i) smoke evacuation system

150~170 DEG C for meeting local associated exhaust environmental emission standard of above-mentioned ceramic fiber tube deduster (20) output are clean Net tail gas is delivered to chimney (22) by air-introduced machine (21) and is discharged into atmosphere.In flue gas on-Line Monitor Device (23) detection discharge flue gas Flue dust, sulfur dioxide, hydrogen chloride, carbon monoxide, nitrogen oxides, rate of oxygen, carbon dioxide etc..

2. a kind of (a) (b) described high-temperature plasma melt process dangerous waste object flying dust, residue technique and being according to claim 1 System, innovation point feature (1) are, by flying dust (01), the object of endanger residual waste (06) and (07) three kind of different characteristics of cullet Material and other microelements are mixed after completing the metering weighing and proportioning of setting in weighing balance weight dispenser (11) respectively Close stirring operation；Then it is at the uniform velocity sent into melting in high-temperature plasma melting burner hearth (15) by conveying batcher (12) and forms semi-fluid Body.

3. according to claim 1 a kind of (a) (b) (c) described high-temperature plasma melt process dangerous waste object flying dust, residue technique and System, innovation point feature (2) are, after flying dust (01), danger residual waste (06) and cullet (07) are mixed evenly, by It conveys batcher (12) to be sent into the shallow crucible of high-temperature plasma melting burner hearth (15), in N group plasma generator (1301) The effect of 1600~2500 degree of torch of thermal energy under, all organic matters resolve into incoagulable gas and aqueous solution point in moment Son vaporization；Inorganic matter and heavy metal are melt into semifluid in its shallow crucible；Another independent plasma generator (1301) torch rifle aims at the overflow ducts of melting semi-fluid body unit, and releases high thermal energy to ensure its semifluid high temperature It is inner that the bottom overflow pipe of plasma melting furnace thorax (13) swimmingly overflows to vitreum collecting box (14)；It is formed after cooling Vitreum reaches the requirement of the technical conditions such as glass cermaic plate, construction material or the sculpture for city of industrial scraper slagging machine place mat, so It is outer again afterwards to be transported to safety zone storage, while the cooling water pipeline of its torch rifle insures design scheme using double jacket, effectively Prevent the generation of cooling wet part water leakage accident, the gas such as the high-temperature flue gas containing dust, incoagulable gas, vaporization hydrone It is to be processed that state substance enters dual firing chamber (15).

4. a kind of (c) described high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is innovated point feature (3) and is, for the shallow crucible shape of melting such as clam shell, depth areas is high temperature plasma flame melting Flying dust, the main operating area of residue windrow, the semifluid of formation, which enters, to be deposited by different level in the vessels crucible of door and periodically drains back into Valuable high desnity metal and common metal are received, low density non-metallic semifluid oozes out to enter by above-mentioned crucible top overflow launder The discharge of vitreum dedicated channel, crucible is by the disposable punching block pouring molding of the special materials such as corundum brick, described and high-temperature plasma The subsidiary engine and control system that body melting burner hearth (13) matches have: plasma generator (1301), plasma electrical source and survey Control device (1302), the equipment of making nitrogen (1303) and safe explosion-proof device (1304) etc., the high-temperature plasma melt burner hearth (13) melting shallow crucible reaction area and melting half of the torch rifle of top setting N group plasma generator (1301) into burner hearth Fluid channel Unit two provides thermal energy, and the top of high-temperature plasma melting burner hearth (13) is equipped with safe explosion-proof device (1304)。

5. a kind of (c) described high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is innovated point feature (4) and is, high-temperature plasma melting burner hearth (13) is equipped with safe explosion-proof device (1304), with conveying Batcher (12), plasma generator (1301), dual firing chamber (15) and its high-temperature flue gas air duct and vitreum are slagged tap air duct Gas circuit is connected, and high-temperature plasma melting burner hearth (13) and plasma electrical source and measure and control device (1302) are made Nitrogen equipment (1303), plasma generator (1301) four are connected.

6. a kind of (d) described high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is innovated point feature (5) and is, the high-temp waste gas generated in high-temperature plasma melting burner hearth (13) enters dual firing chamber (15), by Microwave plasma (can also use DC inversion high-temperature plasma) provides 1500 degree as thermal energy is burned, and forces the dirts such as dioxin Heated break apart of the strand of dye object is come, and achievees the purpose that harmlessness disposing, the coarseparticulate generated in the dual firing chamber (15) Flying dust collecting box (24) are entered by the ash discharging hole of its underpart；Separately there are some fine particle flying dusts to enter boiler with high-temperature flue gas stream (16) to be processed.The dual firing chamber (15) and high-temperature plasma melting burner hearth (13), plasma generator (1301), safety The gas circuit of explosion-protection equipment (1304), boiler (16) and flying dust collecting box (24) is connected.The dual firing chamber (15) and it is equal from Daughter generator (1301), safe explosion-proof device (1304), plasma electrical source and measure and control device (1302), the equipment of making nitrogen (1303) five are connected.

7. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, special Sign is, in above-mentioned steps (e), the high-temperature flue gas that the dual firing chamber (15) is sent out is used as heat transfer carrier by boiler (16), will be soft Change water (1602) and is heated to 180 DEG C of steam (1603)；The high-temperature flue gas exported after boiler (16) heat exchange drops to 800 degree or so. The waste heat boiler (16) is connected with dual firing chamber (15), gas-to-gas heat exchanger (17), (1703) four flue gas path of flying dust header Logical, the waste heat boiler (16) is connected with industrial softened water (1602), steam (1603) three, the SNCR denitration reduction Nitrogen oxides in high-temperature flue gas is reduced to nothing to 850~1000 DEG C of area sprays of fire box temperature, 8% ammonium hydroxide reducing agent by method Harmful nitrogen and water, the waste heat boiler (16) are connected with SNCR denitration device (1601).

8. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, special Sign is, in above-mentioned steps (e), 800 DEG C of high-temperature flue gas of boiler (16) output enter in gas-to-gas heat exchanger (17), will Less than the 350 DEG C height that cold air (1701) heat exchange is exported to 200~400 DEG C of hot-airs (1702), the gas-to-gas heat exchanger (17) Warm flue gas enters to be processed in circulating fluidized bed device (18)；

The gas-to-gas heat exchanger (17) and boiler (16), flying dust collecting box (24), (18) four flue gas of circulating fluidized bed device Road is connected, and the gas-to-gas heat exchanger (17) is connected with cold air (1701), hot air duct (1702) three's air gas circuit, The gas-to-gas heat exchanger (17) is connected to phase with flying dust collecting box (24), conveying device (25), (02) four material of flying dust holding vessel Connection.

9. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, special Sign is, in above-mentioned steps (f), the recirculating fluidized bed (18) and gas-to-gas heat exchanger (17), venturi dry desulfurization device (19), cyclonic separation collector (1802), (24) five flue gas path of flying dust collecting box are connected.The recirculating fluidized bed (18) It is connected with calcium hydroxide chemicals dosing plant (1801) the two；

The high-temperature flue gas from recirculating fluidized bed (18) bottom enter the quartz sand in burner hearth boiling fluidization region, with deliver into Come half dry type lime white quartz sand heat transfer medium catalysis, and under mixed flow state of boil carry out acid-base neutralization chemistry instead It answers, desulfurization deacidification effect is obvious, the pulverized limestone for the part escape that the cyclonic separation collector (1802) is collected into, again certainly Dynamic return continues to participate in above-mentioned acid-base neutralization chemical reaction operation, the calcium compound that the chemical reaction generates in dispensing to burner hearth In hydrone can rapid vaporization explosion escape, the specific surface area in the hydrone cave left is much larger than the specific surface of active carbon Product, the ideal field for becoming the pollutants such as adsorptive gaseous dioxin are hidden oneself institute, and adsorption rate reaches 60~70%.

10. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is characterized in that, in above-mentioned steps (g), the venturi dry desulfurization deacidifying device (19) and recirculating fluidized bed (18), ceramics fibre Dimension chimney filter deduster (20) is connected with (24) four flue gas path of flying dust collecting box；The venturi dry desulfurization deacidifying device (19) it is connected with active carbon chemicals dosing plant (1902) the two；The venturi dry desulfurization deacidifying device (19) and sodium bicarbonate Both chemicals dosing plants (1901) are connected；The venturi dry desulfurization deacidifying device (19) and recirculating fluidized bed (18), ceramics Fiber chimney filter deduster (20) and flying dust collecting box (24), active carbon chemicals dosing plant (1902), sodium bicarbonate chemicals dosing plant (1901) six are connected；

Sodium bicarbonate chemicals dosing plant (1901) high flow rate is set at the Venturi throat and sprays window, sodium bicarbonate powder and cigarette For gas middle acid substance in the cylinder of its special construction, the mixing acid-base neutralization chemistry that sufficient dwell time carries out maelstrom degree is anti- It answers, active carbon chemicals dosing plant (1902) high flow rate is set at the Venturi throat and sprays window, the mixed flow space of big flow-disturbing degree In have enough residence times, allow active carbon fully to adsorb the poisonous and harmful substances such as dioxin.

11. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is characterized in that, in above-mentioned steps (h), the ceramic fibre chimney filter deduster (20) and venturi dry desulfurization deacidifying device (19), air-introduced machine (21) is connected with (24) four flue gas path of flying dust header, the ceramic fibre chimney filter deduster (20) with Both SCR denitration chemicals dosing plants (2001) are connected, and the ceramic fibre chimney filter deduster (20) and venturi dry desulfurization are de- Sour device (19), SCR denitration chemicals dosing plant (2001), air-introduced machine (21) and flying dust collecting box (24) five are connected；

The ceramic fibre chimney filter outer surface adheres to vanadium titanium tungsten catalyst (catalyst), and in ceramic fibre chimney filter deduster (20) 8% atomized ammonia reducing agent is sprayed in the useful space；Under 250-330 DEG C of flue gas environment temperature, through catalyst (with two Titanium oxide is carrier, using vanadic anhydride or tungstic acid or molybdenum trioxide as activating agent) catalysis acceleration reagentia, so that nitrogen Oxide selectivity is reduced to innoxious N2 and H2O；It can be with the nitrogen oxides of removal rate > 95%；Simultaneously in vanadium titanium catalyst Under the action of, CO2, H2O, HCl etc. can be broken down into dioxin removal efficiency > 91.7%, dioxin and the reaction of 3% oxygen Innocuous substance discharge, the collocation sodium bicarbonate (NaHCO3) or the different alkaline agents of calcium hydroxide Ca (OH) 2, can remove sour gas (SO2, HCl, HF) hydrogen chloride removal rate > 97%, oxysulfide removal rate > 95%, the ceramic fibre chimney filter deduster (20) Dust removing effects are less than 5mg/m3 containing Dust Capacity.

12. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is characterized in that, high-temperature plasma melting burner hearth (13) and conveying batcher (10), vitreum collecting box (14), dual firing chamber (15), boiler (16), gas-to-gas heat exchanger (17), flying dust collecting box (24), recirculating fluidized bed (18), venturi dry desulfurization are de- Sour device (19), ceramic fibre chimney filter deduster (20), air-introduced machine (21) and chimney (22) are both systems ten flue gas gas circuit phase Connection.

13. a kind of high-temperature plasma melt process dangerous waste object flying dust, residue technique and system according to claim 1, It is characterized in that, metering weighing transportation system (11) and conveying batcher (12), high-temperature plasma melting burner hearth (13) It is that system solid material is connected with vitreum collecting box (14), dual firing chamber (15) and boiler (16), gas-to-gas heat exchanger (17), flying dust collecting box (24), recirculating fluidized bed (18), venturi dry desulfurization deacidifying device (19) and ceramic fibre chimney filter remove Dirt device (20) is that the seven fly ash particulates conveying of system is connected.