CN106524175A - Waste fusing and curing treatment system and method - Google Patents

Waste fusing and curing treatment system and method Download PDF

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Publication number
CN106524175A
CN106524175A CN201611251937.1A CN201611251937A CN106524175A CN 106524175 A CN106524175 A CN 106524175A CN 201611251937 A CN201611251937 A CN 201611251937A CN 106524175 A CN106524175 A CN 106524175A
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China
Prior art keywords
water
slag
laminar flow
flow channel
melting
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CN201611251937.1A
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Chinese (zh)
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CN106524175B (en
Inventor
刘德绍
肖大志
周雄
林顺洪
李长江
徐�明
杨鲁
胡桂川
胡文金
汤毅
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0273Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/12Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/46Recuperation of heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00Removing ash, clinker, or slag from combustion chambers
    • F23J1/08Liquid slag removal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J7/00Arrangement of devices for supplying chemicals to fire
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/302Treating pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/304Burning pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/10Supplementary heating arrangements using auxiliary fuel
    • F23G2204/103Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • F23G2206/10Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • F23G2206/20Waste heat recuperation using the heat in association with another installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/30Solid combustion residues, e.g. bottom or flyash

Abstract

The invention discloses a waste fusing and curing treatment system and method. When the waste fusing and curing treatment system and method are used for treating rubbish, the rubbish conveying capacity is higher, the rubbish treating capacity is larger, the thermal loss can be reduced, the heat exchanging efficiency can be improved, the recovery efficiency of heat is relatively high, and the emission load of pollutants can be effectively reduced. The waste fusing and curing treatment system comprises a fusion hearth, a laminar flow channel, a water-cooling breaking system and a water seal deslagging system all of which are sequentially arranged in the feeding direction. A high-temperature burner and a gasifying agent inlet are formed in the side wall of the fusion furnace. The water-cooling breaking system comprises a water-cooling system, a water-cooling cavity and a glass body pulverizer. The method comprises the first step of furnace starting and drying; the second step of enabling residues into the fusion hearth to be fused; the third step of fusing inorganic waste in the laminar flow channel; the fourth step of carrying out water cooling on fusion slag and curing the fusion slag into glass body dregs, and breaking and discharging the dregs; and the fifth step of turning off the waste fusing and curing treatment system after the waste fusion dregs are discharged completely.

Description

Castoff fusing cured system and method
Technical field
The invention belongs to Waste Disposal Technology field, more particularly to a kind of castoff fusing cured system and side Method.
Background technology
Existing Waste Disposal Technology mainly has burning, sanitary landfills, compost, waste recovery etc..In offal treatment In routine techniquess, burning disposal has reduced training substantially, and innoxious thorough, occupation of land amount is little, and waste heat energy is obtained by, secondary dirt The advantages of dye is few, meets the strategic requirement of China's sustainable development.But with continuous improvement both at home and abroad to environmental requirement, how Strengthen particularly important to the control of secondary pollution.Therefore, pyrolysis of waste gasification burning technology is gradually shifted onto industrial applications Road on, primarily now use all kinds of incineration technologies, gasification burning and gasification especially for domestic various garbages The technological innovation for bringing domestic offal treatment industry is regenerated by the extensive industrialization of fusion technology.
For many years, China to biomass, house refuse, medical waste, the Changjiang river floating thing, domestic sludge, oily sludge and The scientific research of the gasification&melting technologies such as electronic product, is in progress a lot of, and the basic research of laboratory is a lot, also has applied research, Such as:Rotary kiln type, the destructive gasifying of vertical and fluidized bed type or temperature gasification and high fusion technology etc..But in Technique Popularizing application still There is a definite limitation, raw material type, offal treatment amount, secondary pollution control and economic benefit etc. is principal element.
In existing burning process and equipment, fire grate type incinerator is various informative, and its application accounts for the whole world and burns market More than the 80% of total amount, wherein mainly adopting mechanical type backstepping fire grate, forwards fire grate or combined fire grate in body of heater, also has employing The fire grate such as chain-plate type and drum-type.Domestic developing rapidly through last decade, the popularization and application of fire grate type incinerator have obtained state Family and the attention of various circles of society, burn market at home and have absolute advantagess.
In sum, typical incinerator and melting furnace, respectively have its own advantage, but in China's practical application The middle problem and shortage for needing to solve:
1., for characteristics such as China's house refuse water content height, complicated components, the technology of moving hearth is used, to rubbish Conveying capacity needs emphasis to consider.
2. being on the increase with garbage yield, pile up like a mountain, and treating capacity must be effectively improved, Cai Nengshi Answer the market demand.
3. require in the face of strict pollutant emission, secondary pollution control is the key problem for technically needing to solve.
4., in order to effectively increase economic efficiency, in heat treatment process, the organic efficiency of heat needs to improve.It is existing useless Generally using release heat is burned, boiler conversion produces steam and shifts steam turbine power generation, whole transition heat onto gurry heat treatment technics Efficiency losses are larger, process identical quantity of refuse, and relative thermal losses and the raising heat exchanger effectiveness of reducing can just improve the thermal efficiency.
The for example following two patents of invention of existing incinerator:Multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) an open question and in two-stage garbage incinerator (ZL201010268376.2):Castoff heat Tupe is relatively backward, be simply dried-burns-burns, and solid combustion discharges the process of heat;In stove, thermal chemical reaction is with oxygen Change based on reaction, reduction reaction auxiliary is also easy to produce secondary pollution;When garbage burns in the stove, it is big to cross oxygen quotient, once Wind, secondary wind infeed amount are big, and in flue gas, dust content is higher, affect larger to heat reclaiming system and smoke processing system, hold Easy dust stratification, exhaust gas volumn are larger, reduce thermal conversion efficiency;The gasification furnace not being separately provided and incinerator, can only be processed by several times Rubbish, it is impossible to realize large-scale garbage continuous gasification burning disposal, garbage treatment quantity is less.
The for example following two technologies of existing melting furnace:
First, gasification and melting focuses on technology.As a kind of plasma asistance heats fusion and gasification reactor (CN201410744643.7), castoff fusing cured system (CN201280068994.X), domestic waste oxygen The direct fusion and gasification, and combustion of top blast and its generation technology (CN01107088.9) and other pot type gasification and meltings focus on technology, Wherein an open question:Castoff heat tupe is more advanced, but mainly continues the thinking of fixed bed or fluid bed, enters Row is dried-pyrolysis-gasification-burning (also can be without burning)-melting, and heat treatment process seriality is bad, and each phase process rhythm is difficult To match, and the recycling link of heat considers inadequate, and economy is poor, it is impossible to realize large-scale garbage continuous gasification Melt process, treating capacity are less, and it is imperfect to melt Slag treatment.
Second, gasification+melting separating treatment technology.Such as a kind of gasification of rotary kiln, the house refuse classification of plasma melting The method that gasification system (CN201520578876.4), a kind of rotary kiln to melt gasification house refuse produce combustible gas (CN200910218227.2), refuse gasification and flying dust high-temperature fusion processing meanss and method (CN200710144924.9) and its Its pot type separating treatment technology, wherein an open question:Castoff heat tupe is more advanced, but mainly continues fixation The thinking of bed or fluid bed, is dried-is pyrolyzed-gasify-burn (also can be without burning)-melting, main gasification and melting rank Section is carried out in being separated to different equipment, and preferably, but the rhythm between separation phase is still difficult to heat treatment process seriality Match somebody with somebody, and the recycling link of heat considers inadequate, economy is poor, it is impossible to realize large-scale garbage continuous gasification melting Process, treating capacity is less, and it is imperfect to melt Slag treatment.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of castoff fusing cured system and side Method, processes rubbish using the present invention, and rubbish conveying capacity is higher, and garbage treatment quantity is bigger, can reduce thermal losses and improve heat Exchange efficiency, the organic efficiency of heat are higher, and can efficiently reduce pollutant discharge amount.
The object of the present invention is achieved like this:
A kind of castoff fusing cured system, the melting and solidification processing system include setting gradually along feedstock direction Melting burner hearth, laminar flow channel, water-cooled crushing system and water seal slag removing system, the feed end of the melting burner hearth is melting burner hearth Garbage main-inlet, for being connected with gasification furnace, it is described melting burner hearth side wall be provided with high-temperature burner, gasification agent inlet, For making from gasification furnace to enter the castoff fusing of melting burner hearth, the laminar flow channel is located at below melting burner hearth discharge end, layer Circulation road bottom is that laminar flow inclines siege, and the water-cooled crushing system includes water-cooling system, waterway and vitreous body pulverizer, The waterway is located at laminar flow channel front lower place, and spray assemblies and steam (vapor) outlet are arranged at the top of waterway, and the water-cooling system will For the water input spray assemblies of water-cooled, the steam that the steam (vapor) outlet output water-cooled is produced, the vitreous body pulverizer are arranged In the middle part of waterway, for the vitreous body slag formed after crushing liquid slag water-cooled, the water seal slag removing system is located at waterway Lower section, the discharge end connection vitreous body slag outlet of water seal slag removing system, the water seal slag removing system are used to seal under waterway End, further cools down to vitreous body slag, and exports vitreous body slag.
In order to realize large-scale waste gasification melt process, it may be preferable that the melting burner hearth roof is provided with water conservancy diversion Rear arch and baffle pier, make flue gas horizontally enter into gasification hearth, increase the flue gas disturbance of the radiating surface and gasification hearth of garbage.
In order to control the discharging speed of laminar flow channel, various operating modes are successfully managed, it may be preferable that the laminar flow inclines siege and goes out Material end arranges liquid slag height controller, and the height controller includes baffle plate and the driving for driving baffle plate flexible Part.
In order to ensure the temperature control in laminar flow channel, it is preferable that the laminar flow channel side wall setting calandria carries out auxiliary Help heating and be incubated.
In order to improve capacity usage ratio and reduce water resources consumption, it is preferable that also including steam air exhauster, for blower fan, Gasifying agent blender, the arrival end of the steam air exhauster are connected with the steam (vapor) outlet at the top of waterway by pipeline, the water The steam produced in cold chamber injects an air inlet of the gasifying agent blender by steam air exhauster, and the confession blower fan enters QI KOU and atmosphere, another air inlet is connected with gasifying agent blender for the gas outlet of the confession blower fan, and the gasifying agent is mixed Clutch is used for steam and the air formation hybrid gasification agent provided for blower fan that mixed vapour air exhauster is extracted out, the mixing gasifying Agent feeds melting burner hearth from gasification agent inlet.
In order to reduce water resources consumption amount, it is preferable that the condensed water that the hybrid gasification agent mixed process is produced is by pipe Road is input into water-cooling system, and the unnecessary cooling water of the water seal slag removing system is recycled using back water pump injection water-cooling system.
A kind of castoff fusing solidification processing method, the method are carried out according to the following steps:
Step A, furnace lifting, baker
The gate of castoff fusing cured system and atmospheric vent is closed, starts castoff fusing cured system System, starts the side wall calandria baking melting burner hearth and laminar flow channel of high-temperature burner and laminar flow channel, solid to castoff fusing Changing processing system carries out furnace lifting, baker, makes castoff fusing cured system burner hearth reach 600-700 DEG C of predetermined temperature;
Step B, make residue enter melting burner hearth in melting
Melting fire box temperature is gradually risen using high-temperature burner and calandria, gasifying agent is fed, and gas is entered by adjusting The air themperature of agent blender, makes hybrid gasification agent temperature stabilization at 400-500 DEG C, adjusts castoff fusing cured system Each technological parameter of system, treat pyrolysis of waste residue after gasifying laminar flow incline be accumulated on siege the 3/4 of laminar flow channel height to Be paved with, castoff fusing cured system fire box temperature is gradually risen using high-temperature burner and calandria, reach 1000 DEG C Residue starts melting, continues to heat up, continues to feed intake, and temperature is increased to 1400-1600 DEG C, and garbage is in molten state;
Step C, inorganic waste is made to melt in the laminar flow channel
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel ensures laminar flow channel temperature dimension Hold at 1400-1600 DEG C;
Step D, liquid slag water-cooled are solidified into vitreous body slag, and crush, deslagging
Start water-cooling system and vitreous body pulverizer, when laminar flow channel is flowed out in the outlet of molten state slag Jing liquid slags, melting Slag obtains water-cooled, forms vitreous body slag, drops to, then falls into water seal slag removing system, Jing slag removers Transport is discharged, and liquid slag water-cooled produces steam, injects gasifying agent blender using steam air exhauster, and steam and high temperature air are formed Hybrid gasification agent, feeds melting burner hearth from gasification agent inlet, and the condensed water that mixed process is produced returns water-cooling system, melts pulp water Cold process produces unnecessary cooling water and is stored in water seal slag removing system, is recycled using back water pump injection water-cooling system;
Step E, treat castoff fusing slag arrange after rolling, close castoff fusing cured system.
Further, need to overhaul or during blowing out, garbage main-inlet stops charging, adjust castoff fusing cured system Unite each technological parameter, treat castoff fusing stream after rolling, close the side wall calandria of high-temperature burner and laminar flow channel, clear up water Cold crushing system and water seal slag removing system, close castoff fusing cured system.
As a result of above-mentioned technical proposal, the present invention has the advantages that:
The present invention adopts stoker fired grate, refuse gasification and melt stage to carry out in same equipment, and heat treatment process is continuous Property preferably, the rhythm matching between each stage, the recycling link of heat take into full account, better economy, can realize big The rubbish continuous gasification melt process of scale, garbage treatment quantity are larger, and liquid slag carries out harmless treatment.
Present inventive concept is novel, and garbage treatment quantity is big, and the rubbish bed of material experiences on stoker fired grate and is dried, gasifies and melt rank Section, adapts to the characteristics such as China's house refuse water content height, complicated component, improves the energy conversion efficiency in garbage processing procedure With pollutant discharge amount in reduction flue gas, secondary pollution is effectively prevented, and large-scale rubbish continuous gasification melting can be realized Process, it is ensured that refuse gasification melts effect and lime-ash clinker ignition loss, relative to reduce thermal losses and improve heat exchanger effectiveness, improves The thermal efficiency.
From the pressure change of the-the first exhanst gas outlet of melting furnace-gasification furnace, gasification furnace disturbance effect, baffle pier shape are enhanced Into split channel increase high-temperature flue gas radiating surface.
The present invention effectively carries out secondary pollutant control, realizes minimizing, Harmless and Comprehensive Disposal, and concrete grammar is such as Under:
1 suppresses to reduce the secondary pollutions such as SOx, NOx from melting furnace source by base material (can adopt Calx) Produce, and the catalyst member such as Fe, Cu of secondary pollution resynthesis changes into stable compound;
2 high-temperature fusions decompose, solidify bottom ash and the toxicant in flying dust, realize garbage incinerating power plant without the useless bottom ash of danger Discharge, be that directly landfill or recycling are laid a good foundation.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Structural representations of the Fig. 2 for melting and solidification processing system (connection gasification furnace);
A-A cross section structure diagrams of the Fig. 3 for Fig. 2;
Fig. 4 is the structural representation for moving towards section view in Fig. 2 at B along flue gas;
C-C cross section structure diagrams of the Fig. 5 for Fig. 2;
D-D cross section structure diagrams of the Fig. 6 for Fig. 2;
Fig. 7 is the structural representation of steam generator system in Fig. 1;
Fig. 8 is cyclone combustion chamber structural representation in Fig. 7;
Schematic top plan views of the Fig. 9 for Fig. 8.
Reference
1 is incinerator, and 101 is grate, and 102 is feed hopper, and 103 is gasification furnace, and 105 is siege, and 106 is garbage Glassware is promoted mainly, 107 is an air compartment, and 108 is windrow seal section, and 112 is the first exhanst gas outlet, and 115 is secondary confession air port;
201 is steam air exhauster, and 202 is to supply blower fan, and 203 is gasifying agent blender, and 204 is trachea, and 205 add again for air Hot device;
3 is cyclone combustion chamber, and 301 is combustion chamber ignition combustion-supporting hole, and 302 is taper slag notch, and 303 is smoke inlet, 304 For the 3rd exhanst gas outlet, 305 supply air port for combustion air;
4 is boiler body, and 402 is furnace chamber a, and 403 is furnace chamber b, and 404 is furnace chamber c, and 405 is water-cooling wall, and 406 is superheater, 407 is vaporizer, and 408 is drum, and 409 is the first down-comer, and 410 is the second down-comer, and 411 is steam output device, and 412 are Feedwater input system, 418 is economizer, and 419 is flue gas purification system, and 420 is aeration tower, and 421 is sack cleaner, and 422 are Air-introduced machine, 423 is chimney, and 424 is air preheater, and 425 is fine purifiation cleaner unit, and 426 is deacidification jetting device, and 427 are work Property charcoal jetting device;
5 is melting and solidification processing system, and 51 are melting burner hearth, and 52 is laminar flow channel, and 53 is water-cooling system, and 54 remove for water seal Slag system, 55 is high-temperature burner, and 56 is gasification agent inlet, and 57 is that laminar flow inclines siege, and 58 is waterway, and 59 is vitreous body powder Broken machine, 510 is spray assemblies, and 511 is steam (vapor) outlet, and 512 is water conservancy diversion rear arch, and 513 is baffle pier, and 514 is height controller, 515 is calandria, and 516 is vitreous body slag outlet, and 517 is base material feeder, and 518 is garbage main-inlet, and 519 are Garbage sub-inlet, 520 be garbage pair material-pulling device, 521 inorganic waste entrances, 522 be inorganic waste material-pulling device, 523 is back water pump, and 524 is rewinding clinohedral, and 525 is maintenance door, and 526 is slag remover, and 527 is denitrfying agent jetting device, and 528 are Gasification furnace side wall, 529 are shunting flue.
Specific embodiment
Referring to Fig. 1 to Fig. 9, it is a kind of preferred embodiment of castoff fusing cured system.The present embodiment also increases Gasification furnace part and steam generator system, the castoff fusing cured system has been added to include grate, and the edge on grate Feed hopper, gasification furnace and melting and solidification processing system that feedstock direction sets gradually, the discharge end of melting and solidification processing system is Vitreous body slag outlet.
The grate is provided with garbage and promotes mainly glassware, and the garbage is promoted mainly glassware positioned at the lower section of feed hopper, is used for Garbage in feed hopper is pushed in gasification furnace, windrow seal section between the feed hopper, gasification furnace, is provided with, the windrow is close Base material material inlet is set on the roof of envelope section, and the base material material inlet connects base material feeder, the alkali Base material (during gasification and melting, is formed stable compound with the Partial Elements in garbage, is subtracted by base material feeder Of low pollution thing is entered in flue gas;The melt temperature of part residue can be suitably reduced simultaneously) Jing base material material inlets push windrow Seal section.
The moving hearth of the gasification furnace is divided into dryer section, gasification section, the dryer section of the gasification furnace, gas along feedstock direction Change section and be respectively arranged below with least one air compartment being independently arranged, wherein, below dryer section a air compartment is air-supplied, Air compartment below gasification section feeds hybrid gasification agent, the gasification furnace in the shape that arches upward, on the face arch of the gasification furnace, rear arch Secondary confession air port is respectively provided with, the vault of the gasification furnace arranges the first exhanst gas outlet.
Fall cinder notch of the discharge end of the gasification furnace for gasification furnace, melting and solidification processing system fall cinder notch positioned at gasification furnace Front lower place, the melting and solidification processing system include melting burner hearth, laminar flow channel, water-cooled crushing system and water seal slag removing system, Water-cooled crushing system and water seal slag removing system are provided with water charging system, be provided with the top of the melting and solidification processing system water conservancy diversion rear arch and Baffle pier, the water conservancy diversion rear arch that the melting roof of the furnace is arranged (can be circular arc, involute arc, realize flue gas for arc Smooth break-in), melt burner hearth in the vertically moving entrance water conservancy diversion rear arch of flue gas on the inside of, cigarette after arc rear arch water conservancy diversion The gas Nogata that flattens (makes flue gas with certain speed and horizontally enters into gasification hearth, increase the radiating surface and gasification furnace of garbage to motion The flue gas disturbance of thorax);The baffle pier is extended in the middle part of gasification furnace rear arch from water conservancy diversion rear arch flat segments, and arranges multiple points Stream pier, correspondence grate surface quantity formed it is multiple shunting flues (for fire grate be multiple (more than 2) grate surfaces, melting burner hearth compared with It is little, enable flue gas to be radiated each grate surface, increase the flue gas disturbance of the radiating surface and gasification hearth of garbage), the gasification Stove falls multiple rewinding clinohedrals compositions that cinder notch is correspondence grate surface quantity.
The melting burner hearth side wall is provided with high-temperature burner, gasification agent inlet and garbage sub-inlet (garbage major-minor Charging is organic and inorganic, which need to be gasified and be melted);The high-temperature burner that the melting burner hearth side wall is arranged for etc. Plasma generator or heavy oil burner or pure oxygen combustor (can maintain the burner of 1400-1600 DEG C of high temperature of melting zone equal Can), diagonally downward, 30-60 ° (utilizes melting furnace diameter, setting height(from bottom), flame to high-temperature burner entrance with horizontal plane angle The border condition design such as length, number of burners and size, discarded species, treating capacity), the gasification agent inlet (supplements molten Melt O2, H2O and CO2 needed for chemical reaction etc. in burner hearth) be arranged at below garbage sub-inlet, and in castoff fusing slag it On, diagonally downward, 10-30 ° (utilizes melting furnace diameter, setting height(from bottom), gasifying agent to the gasification agent inlet with horizontal plane angle Entry number and the border condition design such as size, discarded species, treating capacity), the hybrid gasification agent is by adjusting entrance The air themperature of gasifying agent blender, makes hybrid gasification agent temperature stabilization at 400-500 DEG C.
The laminar flow channel bottom is that laminar flow inclines siege, and laminar flow inclines siege end setting liquid slag and highly controls dress Put, side wall arranges calandria (auxiliary heating and insulation), top arranges inorganic waste (only melting to which) entrance;It is described The laminar flow of laminar flow channel bottom inclines siege and is set to along liquid slag flow direction diagonally downward, is 5-15 ° with horizontal plane angle (the border condition design such as discarded species, the mobility of liquid slag, viscosity, treating capacity, time of staying), the liquid slag height Control device inclines siege with laminar flow and is vertically arranged (the scalable control liquid slag height of device);Along liquid slag flow direction both sides Wall is respectively provided with calandria, and the calandria is that high energy electric heater or plasma generator (aid in heating and are incubated, can maintain 1400-1600 DEG C of high temperature of melting zone);The inorganic waste entrance incline direction that the top is arranged is along liquid slag flowing side To being the 60-80 ° of (border such as discarded species, the mobility of liquid slag, viscosity, treating capacity, time of staying with horizontal plane angle Condition design, inorganic waste pressure clamp-on melting zone, can effectively decompose the pollutant such as two English, realize containing heavy metal The melt process of bottom ash, flying dust etc.).
Spray assemblies and steam (vapor) outlet are set at the top of the waterway of the water-cooled crushing system, and side wall arranges maintenance door, in Portion arranges vitreous body pulverizer, and bottom arranges water seal slag removing system.The spray assemblies of the water-cooled crushing system are arranged at melting Slag outlet top, vertical direction is just to liquid slag outlet (can just water-cooled to liquid slag body, curing heavy metal), spray assemblies Spray inlet (reinforcing border water-cooled prevents border from cooling down insufficient) is set in the both walls of waterway, with horizontal plane angle is 30-60 ° (using the perimeter strip such as water-cooled chamber size, setting height(from bottom), spray length, quantity and size, discarded species, treating capacity Part is designed), the steam (vapor) outlet is arranged at away from liquid slag outlet outside top (a large amount of high-temperature steams can be excluded).It is described to set The vitreous body pulverizer being placed in the middle part of waterway is located at liquid slag outlet lower section, and the embedded laminar flow uphill furnace bed of vitreous body pulverizer Lower section, embedded size be two crushing wheels installation dimension arranged side by side 1/4-3/4 (realize vitreous body slag into two crushing wheels it Between), two crushing wheel energy rotatings work (preventing from getting stuck).
The steam utilization steam air exhauster injection gasifying agent blender produced in the waterway, the gasifying agent blender Hybrid gasification agent is formed for mixing high temperature air and steam, the hybrid gasification agent feeds melting burner hearth from gasification agent inlet, The condensed water that mixed process is produced returns water-cooling system.The unnecessary cooling water of the water seal slag removing system injects water using back water pump Cooling system is recycled.
The steam generator system includes boiler body, circulation air feed system, and the boiler body has cyclone combustion chamber, furnace chamber A, furnace chamber b, furnace chamber c, the lower end of the cyclone combustion chamber arrange smoke inlet, the smoke inlet of cyclone combustion chamber and the first flue gas Outlet, arranges denitrfying agent jetting device, uses on the pipeline that the smoke inlet of cyclone combustion chamber is connected with the first exhanst gas outlet In denitration process are carried out to flue gas, denitrfying agent can adopt liquefied ammonia, remove the NOx in flue gas, high temperature denitration;Cyclone combustion chamber upper end For the 3rd exhanst gas outlet, the cyclone combustion chamber is provided with some combustion airs and supplies air port, some combustion airs to be located at for air port Between smoke inlet, the 3rd exhanst gas outlet, the 3rd exhanst gas outlet of cyclone combustion chamber upper end is connected with the upper end of furnace chamber a, described The lower end connection of furnace chamber a, furnace chamber b, the upper end of the furnace chamber b arrange waste gas outlet, in the cyclone firing room circumferentially arranged with Water-cooling wall in a ring, is provided with superheater in the furnace chamber a, vaporizer is provided with furnace chamber b, and the top of boiler body is arranged Drum, the cyclone combustion chamber, furnace chamber a, furnace chamber b are respectively positioned on below drum, and the drum is provided with soda pop import, sets in drum There is water separator, for separating steam water interface, drum connects the water inlet of water-cooling wall by the first down-comer, for defeated Go out the water that water separator is isolated, drum connects the water inlet of vaporizer by the second down-comer, for exporting soda pop point From the water that device is isolated, the water-cooling wall, the venthole of vaporizer connect the air intake of drum respectively by steam pipe, for returning Stream high-temperature steam, the saturated vapor outlet of the drum connect the air intake of superheater by pipeline, for the high temperature that will be flowed back In steam input superheater, the venthole connection steam output device output superheated steam of the superheater, steam output device The condensed water produced using complete steam is inputed to water input system and is recycled.
The circulation air feed system includes steam air exhauster, for blower fan, gasifying agent blender, the steam air exhauster enters Mouth end is connected with the steam (vapor) outlet at the top of waterway by pipeline, and the steam produced in the waterway is noted by steam air exhauster Enter an air inlet of the gasifying agent blender, the air inlet and atmosphere of the confession blower fan, the outlet of the confession blower fan The air preheater arranged at mouth connection furnace chamber b waste gas outlets, the air preheater connect the house steward of a trachea, the trachea Arm respectively with gasifying agent blender another air inlet, gasification furnace dryer section below an air compartment, gasification furnace it is secondary Connect for air port for the combustion air on air port and the cyclone combustion chamber, in the present embodiment, in the furnace chamber b, be provided with air again Heater, the gasifying agent blender connect the trachea by pipeline after pipeline connects air reheater again.It is described Gasifying agent blender is used for the high temperature air formation mixing gasifying that the steam and steam generator system of mixed vapour air exhauster extraction is discharged Agent, the hybrid gasification agent feed melting burner hearth from gasification agent inlet, and hybrid gasification agent also serves as gasification furnace First air and feeds gas Change an air compartment below stove gasification section.The condensed water that the hybrid gasification agent mixed process is produced is input into water-cooled system by pipeline System, the unnecessary cooling water of the water seal slag removing system are recycled using back water pump injection water-cooling system.
Described one end for being connected with gasification furnace of melting burner hearth is the garbage main-inlet of melting burner hearth, the melting burner hearth side Wall arranges garbage sub-inlet again, and the garbage sub-inlet connection garbage pair material-pulling device, garbage pair material-pulling device are used Below by gasification furnace, the residue of each air compartment is pushed in melting burner hearth, arranges inorganic waste on the laminar flow channel roof Entrance, the inorganic waste entrance connect inorganic waste material-pulling device, and the inorganic waste material-pulling device is for by pot The inorganic residues that furnace system is collected are pushed in laminar flow channel.
The upper end of the furnace chamber c is connected with the waste gas outlet of furnace chamber b upper ends, and the lower end of furnace chamber c arranges Waste gas outlet, institute State and in furnace chamber c, be provided with economizer, the water inlet of the economizer is connected with the outlet of feedwater input system, the economizer The soda pop inlet communication of outlet and drum.Flue gas purification system is also add in the present embodiment, the Waste gas outlet of furnace chamber c connects Connect flue gas purification system, aeration tower that the flue gas purification system includes being sequentially connected in series along discharge directions, sack cleaner, air inducing Machine, fine purifiation cleaner unit, chimney, the roof of the aeration tower arrange deacidification jetting device, and the side wall of aeration tower arranges activated carbon Jetting device.
The sour gas such as deacidification (lime white can be adopted), SOx, HCl, the HF in removing flue gas are sprayed into from aeration tower, it is low Warm neutralization reaction;Heavy metal, two English in activated carbon penetrating absorption flue gas etc.;Sack cleaner collects the flying dust in flue gas; Fine purifiation cleaner unit is quenched and washes flue gas formula pollutant, and collects micronic dust, realizes flue gas pollutant minimum discharge.
A kind of castoff fusing cured system processing method, the method are carried out according to the following steps:
Step A, furnace lifting, baker;
The gate of castoff fusing cured system and atmospheric vent is closed, starts castoff fusing cured system Waste materials are put into feed hopper by system, garbage pusher pusher back and forth, the waste materials that will be fallen from feed hopper The windrow seal section between feed hopper, gasification furnace is pushed, makes windrow seal section form windrow sealing state, unnecessary garbage falls Enter the moving hearth of gasification furnace, the moving hearth work of gasification furnace, until garbage is accumulated to institute in the moving hearth of gasification furnace The thickness 800-1000mm for needing, stops to feed hopper feeding intake, and the moving hearth of garbage pusher and gasification furnace quits work, and opens The side wall calandria baking melting burner hearth of dynamic high-temperature burner and laminar flow channel and laminar flow channel, to castoff fusing cured System carries out furnace lifting, baker, makes castoff fusing cured system burner hearth reach 600-700 DEG C of predetermined temperature;
Step B, garbage pyrolytic gasification in gasification furnace is made, residue enters melting in melting burner hearth;
Castoff fusing cured system fire box temperature is gradually risen using high-temperature burner and calandria, recover to Feed bin feeds intake, and the moving hearth of garbage pusher and gasification furnace is started working, and feeds gasifying agent, enters gasifying agent by adjusting The air themperature of blender, makes hybrid gasification agent temperature stabilization at 400-500 DEG C, adjusts each technological parameter of gasification furnace, makes to give up Gurry pyrolytic gasification in gasification furnace, gasification furnace atmosphere temperature are stable at 800-900 DEG C, and gasification furnace falls cinder notch blanking, waits to discard Thing pyrolytic gasification residue inclines the thickness needed for being accumulated on siege, the i.e. 3/4-1 of laminar flow channel height, using high temperature in laminar flow Burner and calandria gradually rise castoff fusing cured system fire box temperature, reach 1000 DEG C of residues and start melting, Continue to heat up, continue to feed hopper to feed intake, persistently carry out pyrolytic gasification process, while each air compartment is collected by secondary material-pulling device Residue feed from garbage sub-inlet, according to the first exhanst gas outlet synthesis gas componentses, adjust the gasification agent inlet of melting burner hearth Each technological parameter of infeed amount and gasification furnace, temperature are increased to 1400-1600 DEG C, and garbage is in molten state;
Step C, inorganic waste is made to melt in the laminar flow channel;
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel ensures laminar flow channel temperature dimension Hold at 1400-1600 DEG C, be pressed into material from inorganic waste entrance using inorganic waste material-pulling device, with high-temperature molten-state slag Contact melting;
Step D, liquid slag water-cooled are solidified into vitreous body slag, and crush, deslagging;
Start water-cooling system and vitreous body pulverizer, when laminar flow channel is flowed out in the outlet of molten state slag Jing liquid slags, melting Slag obtains water-cooled, forms vitreous body slag, drops to, then falls into water seal slag removing system, Jing slag removers Transport is discharged, and liquid slag water-cooled produces steam, injects gasifying agent blender using steam air exhauster, and steam and high temperature air are formed Hybrid gasification agent, feeds melting burner hearth from gasification agent inlet, and hybrid gasification agent also serves as gasification furnace First air and feeds gasification hearth; The condensed water that mixed process is produced returns water-cooling system, and liquid slag Cooling Process produces unnecessary cooling water and is stored in water seal except slag system System, is recycled using back water pump injection water-cooling system;
Step E, treat castoff fusing slag arrange after rolling, close castoff fusing cured system.
Need to overhaul or during blowing out, fall cinder notch, garbage sub-inlet and inorganic waste entrance of feed hopper, gasification furnace stops Charging, adjusts each technological parameter of castoff fusing cured system, treats castoff fusing stream after rolling, close high-temperature burner With the side wall calandria of laminar flow channel, cleaning circulation air feed system, water-cooled crushing system and water seal slag removing system, garbage is closed Melting and solidification processing system.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate technical scheme, although logical Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be Various changes are made to which in form and in details, without departing from claims of the present invention limited range.

Claims (8)

1. a kind of castoff fusing cured system, it is characterised in that:The melting and solidification processing system is included along charging side To the melting burner hearth, laminar flow channel, water-cooled crushing system and the water seal slag removing system that set gradually, the feed end of the melting burner hearth To melt the garbage main-inlet of burner hearth, for being connected with gasification furnace, the melting burner hearth side wall is provided with high-temperature burner, gas Agent entrance, for making from gasification furnace to enter the castoff fusing of melting burner hearth, the laminar flow channel is located at melting burner hearth discharging End lower section, laminar flow channel bottom are that laminar flow inclines siege, and the water-cooled crushing system includes water-cooling system, waterway and glass Body pulverizer, the waterway are located at laminar flow channel front lower place, and spray assemblies and steam (vapor) outlet, the water are arranged at the top of waterway Water input spray assemblies for water-cooled, the steam (vapor) outlet are exported the steam that water-cooled is produced, the vitreous body powder by cooling system Broken machine is arranged in the middle part of waterway, and for the vitreous body slag formed after crushing liquid slag water-cooled, the water seal slag removing system is located at The lower section of waterway, the discharge end connection vitreous body slag outlet of water seal slag removing system, the water seal slag removing system are used to seal Waterway lower end, further cools down to vitreous body slag, and exports vitreous body slag.
2. castoff fusing cured system according to claim 1, it is characterised in that:On the melting burner hearth roof Water conservancy diversion rear arch and baffle pier are provided with, make flue gas horizontally enter into gasification hearth, increase the cigarette of the radiating surface and gasification hearth of garbage Gas disturbance.
3. castoff fusing cured system according to claim 1, it is characterised in that:The laminar flow inclines siege and goes out Material end arranges liquid slag height controller, and the height controller includes baffle plate and the driving for driving baffle plate flexible Part.
4. castoff fusing cured system according to claim 1, it is characterised in that:The laminar flow channel side wall sets Putting calandria carries out aiding in heating and insulation.
5. castoff fusing cured system according to claim 1, it is characterised in that:Also include steam air exhauster, For blower fan, gasifying agent blender, the arrival end of the steam air exhauster is connected with the steam (vapor) outlet at the top of waterway by pipeline, The steam produced in the waterway injects an air inlet of the gasifying agent blender, the air feed by steam air exhauster The air inlet and atmosphere of machine, another air inlet is connected with gasifying agent blender for the gas outlet of the confession blower fan, the gas Agent blender is used for steam and the air formation hybrid gasification agent provided for blower fan that mixed vapour air exhauster is extracted out, described mixed Close gasifying agent melting burner hearth is fed from gasification agent inlet.
6. castoff fusing cured system according to claim 5, it is characterised in that:The hybrid gasification agent mixing The condensed water that process is produced is input into water-cooling system by pipeline, and the unnecessary cooling water of the water seal slag removing system utilizes backwater infusion Enter water-cooling system recycling.
7. a kind of castoff fusing solidification processing method, it is characterised in that:The method is carried out according to the following steps:
Step A, furnace lifting, baker
The gate of castoff fusing cured system and atmospheric vent is closed, is started castoff fusing cured system, is opened The side wall calandria baking melting burner hearth of dynamic high-temperature burner and laminar flow channel and laminar flow channel, to castoff fusing cured System carries out furnace lifting, baker, makes castoff fusing cured system burner hearth reach 600-700 DEG C of predetermined temperature;
Step B, make residue enter melting burner hearth in melting
Melting fire box temperature is gradually risen using high-temperature burner and calandria, gasifying agent is fed, and gasifying agent is entered by adjusting The air themperature of blender, makes hybrid gasification agent temperature stabilization at 400-500 DEG C, adjusts castoff fusing cured system Each technological parameter, treats that pyrolysis of waste residue after gasifying is inclined in laminar flow and the 3/4 of laminar flow channel height is accumulated on siege to being paved with, Castoff fusing cured system fire box temperature is gradually risen using high-temperature burner and calandria, 1000 DEG C of residues is reached and is opened Begin to melt, continue to heat up, continue to feed intake, temperature is increased to 1400-1600 DEG C, and garbage is in molten state;
Step C, inorganic waste is made to melt in the laminar flow channel
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel ensures that laminar flow channel temperature is maintained 1400-1600℃;
Step D, liquid slag water-cooled are solidified into vitreous body slag, and crush, deslagging
Start water-cooling system and vitreous body pulverizer, when laminar flow channel is flowed out in the outlet of molten state slag Jing liquid slags, liquid slag is obtained To water-cooled, vitreous body slag is formed, drop to, then fall into water seal slag removing system, the transport of Jing slag removers Discharging, liquid slag water-cooled produces steam, gasifying agent blender being injected using steam air exhauster, steam and high temperature air form mixing Gasifying agent, feeds melting burner hearth from gasification agent inlet, and the condensed water that mixed process is produced returns water-cooling system, liquid slag water-cooled mistake Journey produces unnecessary cooling water and is stored in water seal slag removing system, is recycled using back water pump injection water-cooling system;
Step E, treat castoff fusing slag arrange after rolling, close castoff fusing cured system.
8. castoff fusing solidification processing method according to claim 1, it is characterised in that:Need to overhaul or during blowing out, give up Gurry main-inlet stops charging, adjusts each technological parameter of castoff fusing cured system, treats castoff fusing stream after rolling, The side wall calandria of high-temperature burner and laminar flow channel, cleaning water-cooled crushing system and water seal slag removing system are closed, is closed discarded Thing melting and solidification processing system.
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