CN106524175B - Castoff fusing curing process system and method - Google Patents
Castoff fusing curing process system and method Download PDFInfo
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- CN106524175B CN106524175B CN201611251937.1A CN201611251937A CN106524175B CN 106524175 B CN106524175 B CN 106524175B CN 201611251937 A CN201611251937 A CN 201611251937A CN 106524175 B CN106524175 B CN 106524175B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0273—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/08—Liquid slag removal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J7/00—Arrangement of devices for supplying chemicals to fire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/302—Treating pyrosolids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/304—Burning pyrosolids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/103—Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/30—Solid combustion residues, e.g. bottom or flyash
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of castoff fusing curing process system and methods, handle rubbish using the present invention, rubbish conveying capacity is stronger, garbage treatment quantity is bigger, thermal losses can be reduced and improve heat exchanger effectiveness, the recovery efficiency of heat is higher, and can efficiently reduce pollutant discharge amount.Melting and solidification processing system includes the melting burner hearth set gradually along feedstock direction, laminar flow channel, water cooling crushing system and water seal slag removing system, melting burner hearth side wall is provided with high-temperature burner, gasification agent inlet, and water cooling crushing system includes water-cooling system, waterway and vitreum pulverizer.Method includes step A, furnace lifting, baker；Step B, residue is made to enter melting in melting burner hearth；Step C, melt inorganic waste in laminar flow channel；Step D, liquid slag water cooling is solidified into vitreum slag, and is crushed, deslagging；Step E, after rolling to castoff fusing slag row, castoff fusing curing process system is closed.
Description
Technical field
The invention belongs to Waste Disposal Technology field more particularly to a kind of castoff fusing curing process system and sides
Method.
Background technique
Existing Waste Disposal Technology mainly has burning, sanitary landfills, compost, waste recovery etc..In offal treatment
In routine techniques, burning disposal has reduced training obvious, and innoxious thorough, land occupation amount is small, and waste heat energy is utilized, secondary dirt
The advantages that dye is few, meets the strategic requirement of China's sustainable development.But with both at home and abroad to the continuous improvement of environmental requirement, how
Enhance particularly important to the control of secondary pollution.Therefore, pyrolysis of waste gasification burning technology is gradually shifted onto industrial applications
Road on, especially for domestic various wastes primarily now using all kinds of incineration technologies, gasification burning and gasification
Fusion technology, which widely industrializes, will bring the technological innovation of domestic offal treatment industry to regenerate.
For many years, China to biomass, house refuse, medical waste, the Changjiang river floating material, domestic sludge, oily sludge and
The scientific research of the gasification&melting technologies such as electronic product is in progress a lot of, and there are many basic research in laboratory, also there is application study,
Such as: rotary kiln type, vertical and fluidized bed type destructive gasifying or temperature gasification and high fusion technology.But Technique Popularizing using it is upper still
There are certain restrictions, raw material type, offal treatment amount, secondary pollution control and economic benefit etc. are principal elements.
In existing burning process and equipment, fire grate type incinerator is various informative, and application accounts for the whole world and burns market
80% or more of total amount also has use wherein mainly using mechanical backstepping fire grate, forwards fire grate or combined fire grate in furnace body
The fire grates such as chain-plate type and drum-type.The domestic rapid development Jing Guo last decade, the popularization and application of fire grate type incinerator have obtained state
The attention of family and various circles of society, burning market at home has absolute predominance.
In conclusion typical incinerator and melting furnace, respectively have its own advantage, but in China's practical application
Middle problem to be solved and deficiency:
1. the technology of moving hearth uses, to rubbish for characteristics such as China's house refuse water content height, complicated components
Conveying capacity needs emphasis to consider.
2. pile up like a mountain with being increasing for waste yield, treating capacity must be effectively improved, Cai Nengshi
In response to the market demand.
3. secondary pollution control is the key problem for technically needing to solve in face of stringent pollutant emission requirement.
4. in heat treatment process, the recovery efficiency of heat needs to improve in order to effectively increase economic efficiency.It is existing useless
Gurry heat treatment technics generallys use burning release heat, and boiler conversion generates steam and shifts steam turbine power generation, entire transition heat onto
Efficiency losses are larger, handle identical quantity of refuse, and opposite reduction thermal losses and raising heat exchanger effectiveness can improve the thermal efficiency.
Existing incinerator such as following two patent of invention: 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, only dry-burns-burns, and solid combustion discharges the process of heat；Thermal chemical reaction is in furnace with oxygen
Change based on reaction, reduction reaction auxiliary is also easy to produce secondary pollution；When waste burns in furnace, oxygen quotient excessively is big, once
Wind, Secondary Air infeed amount are big, and dust content is higher in flue gas, are affected to heat reclaiming system and smoke processing system, hold
Easy dust stratification, exhaust gas volumn is larger, reduces thermal conversion efficiency；The gasification furnace and incinerator not being separately provided, can only be handled by several times
Rubbish, cannot achieve large-scale waste continuous gasification burning disposal, and garbage treatment quantity is smaller.
Existing melting furnace such as following two technology:
First, gasification and melting focuses on technology.Such as a kind of plasma asistance heating melting gasification reactor
(CN201410744643.7), castoff fusing curing process 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 fluidized bed, into
Row drying-pyrolysis-gasification-burning (can also be without burning)-melting, heat treatment process continuity is bad, and each phase process rhythm is difficult
With matching, and the recycling link of heat considers that not enough economy is poor, cannot achieve large-scale waste continuous gasification
Melt process, treating capacity is smaller, 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 unit 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 and fix
The thinking of bed or fluidized bed is dried-pyrolysis-and gasifies-burn (can also without burning)-melting, main gasification and melting rank
Section is separated in different equipment and carries out, and heat treatment process continuity is preferable, but the rhythm between separation phase is still difficult to
Match, and the recycling link of heat considers that not enough economy is poor, cannot achieve large-scale waste continuous gasification melting
Processing, treating capacity is smaller, and it is imperfect to melt Slag treatment.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of castoff fusing curing process system and sides
Method handles rubbish using the present invention, and rubbish conveying capacity is stronger, and garbage treatment quantity is bigger, can reduce thermal losses and improve heat
The recovery efficiency of exchange efficiency, heat is higher, and can efficiently reduce pollutant discharge amount.
The object of the present invention is achieved like this:
A kind of castoff fusing curing process system, the melting and solidification processing system includes setting gradually along feedstock direction
Melting burner hearth, laminar flow channel, water cooling crushing system and water seal slag removing system, it is described melting burner hearth feed end be melting burner hearth
Waste main-inlet, for connecting with gasification furnace, the melting burner hearth side wall is provided with high-temperature burner, gasification agent inlet,
Castoff fusing for making to enter melting burner hearth from gasification furnace, the laminar flow channel are located at below melting burner hearth discharge end, layer
Circulation road bottom is that laminar flow tilts siege, and the water cooling crushing system includes water-cooling system, waterway and vitreum pulverizer,
The waterway is located at laminar flow channel front lower place, and setting spray assemblies and steam (vapor) outlet at the top of waterway, the water-cooling system will
Water for water cooling inputs spray assemblies, the steam that the steam (vapor) outlet output water cooling generates, the vitreum pulverizer setting
In the middle part of waterway, for crushing the vitreum slag formed after liquid slag water cooling, the water seal slag removing system is set to waterway
Lower section, the discharge end of water seal slag removing system connect vitreum slag outlet, and the water seal slag removing system is for sealing under waterway
End, further cools down vitreum slag, and export vitreum slag.
In order to realize large-scale waste gasification melt process, it may be preferable that the melting burner hearth roof is equipped with water conservancy diversion
Rear arch and baffle pier, make flue gas horizontally enter into gasification hearth, increase the radiating surface of waste and the flue gas disturbance of gasification hearth.
In order to control the discharging speed of laminar flow channel, various operating conditions are successfully managed, it may be preferable that the laminar flow inclination siege goes out
Expect that liquid slag height controller is arranged in end, the height controller includes baffle and the driving for driving baffle flexible
Part.
In order to guarantee that the temperature in laminar flow channel controls, it is preferable that the laminar flow channel side wall setting calandria carries out auxiliary
Help heating and heat preservation.
In order to improve capacity usage ratio and reduce water resources consumption, it is preferable that further include steam exhaust fan, for blower,
The arrival end of gasifying agent mixer, the steam exhaust fan is connect by pipeline with the steam (vapor) outlet at the top of waterway, the water
The steam generated in cold chamber injects an air inlet of the gasifying agent mixer by steam exhaust fan, it is described for blower into
Port is communicated with the atmosphere, and the gas outlet for blower is connected to another air inlet of gasifying agent mixer, and the gasifying agent is mixed
Clutch forms hybrid gasification agent, the mixing gasifying for the steam of mixed vapour exhaust fan extraction and for the air of blower offer
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 generates passes through pipe
Road inputs water-cooling system, and the extra 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, this method sequentially include the following steps:
Step A, furnace lifting, baker
The gate of castoff fusing curing process system and atmospheric vent is closed, castoff fusing curing process system is started
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
Change processing system and carry out furnace lifting, baker, castoff fusing curing process system burner hearth is made to reach 600-700 DEG C of predetermined temperature；
Step B, residue is made to enter melting in melting burner hearth
Melting fire box temperature is gradually risen using high-temperature burner and calandria, feeds gasifying agent, enters gas by adjusting
The air themperature of agent mixer stablizes hybrid gasification agent temperature at 400-500 DEG C, adjusts castoff fusing curing process system
Each technological parameter of system, be accumulated on laminar flow inclination siege to pyrolysis of waste residue after gasifying the 3/4 of laminar flow channel height to
It is paved with, gradually rises castoff fusing curing process system fire box temperature using high-temperature burner and calandria, reach 1000 DEG C
Residue starts to melt, and continues to heat up, and continues to feed intake, and temperature is increased to 1400-1600 DEG C, and waste is in molten state；
Step C, melt inorganic waste in laminar flow channel
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel guarantees laminar flow channel temperature dimension
It holds at 1400-1600 DEG C；
Step D, liquid slag water cooling is solidified into vitreum slag, and is crushed, deslagging
Start water-cooling system and vitreum pulverizer, when molten state slag exports outflow laminar flow channel through liquid slag, melting
Slag obtains water cooling, forms vitreum slag, falls on vitreum pulverizer and is crushed, then fall into water seal slag removing system, through slag remover
Transport discharge, liquid slag water cooling generate steam, inject gasifying agent mixer using steam exhaust fan, 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 generates returns to water-cooling system, melts pulp water
Cold process generates extra cooling water deposit water seal slag removing system, is recycled using back water pump injection water-cooling system；
Step E, after rolling to castoff fusing slag row, castoff fusing curing process system is closed.
Further, it need to overhaul or when blowing out, waste main-inlet stops charging, adjust castoff fusing curing process system
Each technological parameter of uniting after rolling to castoff fusing stream closes the side wall calandria of high-temperature burner and laminar flow channel, clears up water
Cold crushing system and water seal slag removing system close castoff fusing curing process system.
By adopting the above-described technical solution, the invention has the following beneficial effects:
The present invention is carried out in same equipment using stoker fired grate, refuse gasification and melt stage, and heat treatment process is continuous
Property preferable, the rhythm matching between each stage, the recycling link of heat fully considers, better economy, can be realized big
The rubbish continuous gasification melt process of scale, garbage treatment quantity is 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 undergoes dry, gasification and melting rank on stoker fired grate
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, it is effectively prevent secondary pollution, and can be realized large-scale rubbish continuous gasification melting
Processing guarantees refuse gasification melting effect and lime-ash clinker ignition loss, opposite 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
At split channel increase high-temperature flue gas radiating surface.
The present invention effectively carries out secondary pollutant control, realizes minimizing, Harmless and Comprehensive Disposal, specific method is such as
Under:
1 inhibits to reduce the secondary pollutions such as SOx, NOx from melting furnace source by base material (lime can be used)
The catalyst members such as Fe, Cu that generation and secondary pollution synthesize again are converted to stable compound；
2 high-temperature fusions decompose, solidifys toxicant in bottom ash and flying dust, and realization garbage incinerating power plant is without dangerous waste bottom ash
Discharge is laid a good foundation for directly landfill or resource utilization.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of melting and solidification processing system (connection gasification furnace)；
Fig. 3 is the A-A schematic cross-sectional view of Fig. 2；
Fig. 4 is the structural schematic diagram for moving towards section view in Fig. 2 at B along flue gas；
Fig. 5 is the C-C schematic cross-sectional view of Fig. 2；
Fig. 6 is the D-D schematic cross-sectional view of Fig. 2；
Fig. 7 is the structural schematic diagram of boiler system in Fig. 1；
Fig. 8 is cyclone combustion chamber structural schematic diagram in Fig. 7；
Fig. 9 is the schematic top plan view of Fig. 8.
Appended drawing reference
1 is incinerator, and 101 be grate, and 102 be feed hopper, and 103 be gasification furnace, and 105 be siege, and 106 be waste
Featured glassware, 107 be an air compartment, and 108 be windrow seal section, and 112 be the first exhanst gas outlet, and 115 be secondary for air port；
201 be steam exhaust fan, and 202 is, for blower, 203 are gasifying agent mixer, and 204 be tracheae, and 205 add again for air
Hot device；
3 be cyclone combustion chamber, and 301 be combustion chamber ignition combustion-supporting hole, and 302 be cone cell slag notch, and 303 be smoke inlet, 304
It is combustion air for air port for third exhanst gas outlet, 305；
4 be boiler body, and 402 be furnace chamber a, and 404 be furnace chamber c, and 405 be water-cooling wall, and 406 be superheater, and 407 be evaporation
Device, 408 be drum, and 409 be the first down-comer, and 410 be the second down-comer, and 411 be steam output device, and 412 input for water supply
System, 418 be economizer, and 419 be flue gas purification system, and 420 be aeration tower, and 421 be bag filter, and 422 be air-introduced machine,
423 be chimney, and 424 be air preheater, and 425 be fine purifiation deduster, and 426 be depickling drug jetting device, and 427 spray into for active carbon
Device；
5 be melting and solidification processing system, and 51 be melting burner hearth, and 52 be laminar flow channel, and 53 be water-cooling system, and 54 remove for water seal
Slag system, 55 be high-temperature burner, and 56 be gasification agent inlet, and 57 tilt siege for laminar flow, and 58 be waterway, and 59 be vitreum powder
Broken machine, 510 be spray assemblies, and 511 be steam (vapor) outlet, and 512 be water conservancy diversion rear arch, and 513 be baffle pier, and 514 be height controller,
515 be calandria, and 516 be vitreum slag outlet, and 517 be base material feeder, and 518 be waste main-inlet, and 519 are
Waste sub-inlet, 520 be waste pair material-pulling device, and 521 inorganic waste entrances, 522 be inorganic waste material-pulling device,
523 be back water pump, and 524 be rewinding clinohedral, and 525 be maintenance door, and 526 be slag remover, and 527 be denitrfying agent jetting device, and 528 are
Gasification furnace side wall, 529 be shunting flue.
Specific embodiment
It is a kind of preferred embodiment of castoff fusing curing process system referring to Fig. 1 to Fig. 9.The present embodiment also increases
Gasification furnace part and boiler system are added, the castoff fusing curing process system includes grate, and the edge on grate
Feed hopper, gasification furnace and the melting and solidification processing system that feedstock direction is set gradually, the discharge end of melting and solidification processing system are
Vitreum slag outlet.
The grate is equipped with waste and promotes mainly glassware, and the waste is promoted mainly the lower section that glassware is located at feed hopper, is used for
By in the waste push-in gasification furnace in feed hopper, windrow seal section is equipped between the feed hopper, gasification furnace, the windrow is close
It seals and base material material inlet is set on the roof of section, 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 waste, subtracted by base material feeder
Of low pollution object enters in flue gas；The melting temperature of part residue can be suitably reduced simultaneously) windrow is pushed into through base material material inlet
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
To change section and is respectively arranged below at least one air compartment being independently arranged, wherein an air compartment below dryer section is air-supplied,
An air compartment below gasification section feeds hybrid gasification agent, and the gasification furnace is in the shape that arches upward, on the face arch of the gasification furnace, rear arch
It is respectively set secondary for air port, vault the first exhanst gas outlet of setting of the gasification furnace.
The discharge end of the gasification furnace is the slag mouth of gasification furnace, and melting and solidification processing system is located at gasification furnace slag mouth
Front lower place, the melting and solidification processing system include melting burner hearth, laminar flow channel, water cooling crushing system and water seal slag removing system,
Water cooling crushing system and water seal slag removing system are equipped with water charging system, be equipped at the top of the melting and solidification processing system water conservancy diversion rear arch and
Baffle pier, the water conservancy diversion rear arch of the melting roof of the furnace setting are that arc (can be arc-shaped, involute arc, realize flue gas
Smooth deflecting), melt that the flue gas in burner hearth is vertically moving to be entered on the inside of water conservancy diversion rear arch, cigarette after arc rear arch water conservancy diversion
The gas histogram that flattens (makes flue gas horizontally enter into gasification hearth with certain speed, increases the radiating surface and gasification furnace of waste to movement
The flue gas of thorax disturbs)；The baffle pier extends in the middle part of gasification furnace rear arch from water conservancy diversion rear arch flat segments, and is arranged multiple points
Flow pier, corresponding grate surface quantity formed multiple shuntings flues (be multiple (2 or more) grate surfaces for fire grate, melt burner hearth compared with
It is small, so that flue gas is radiated each grate surface, increase the radiating surface of waste and the flue gas disturbance of gasification hearth), the gasification
Furnace slag mouth is multiple rewinding clinohedrals composition of corresponding grate surface quantity.
The melting burner hearth side wall is provided with high-temperature burner, gasification agent inlet and waste sub-inlet (waste major-minor
It feeds organic and inorganic, need to it be gasified and be melted)；It is described melting burner hearth side wall setting high-temperature burner be 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 ° of angle with horizontal plane (utilizes melting furnace diameter, mounting height, flame to high-temperature burner entrance
The boundaries condition design such as length, number of burners and size, discarded species, treating capacity), (supplement is molten for the gasification agent inlet
Melt O2, H2O and CO2 needed for chemically reacting in burner hearth etc.) be set to below waste sub-inlet, and in castoff fusing slag it
On, diagonally downward, 10-30 ° of angle with horizontal plane (utilizes melting furnace diameter, mounting height, gasifying agent to the gasification agent inlet
Entry number and the boundaries condition design such as size, discarded species, treating capacity), the hybrid gasification agent is entered by adjusting
The air themperature of gasifying agent mixer stablizes hybrid gasification agent temperature at 400-500 DEG C.
The laminar flow channel bottom is that laminar flow tilts siege, and laminar flow tilts siege end setting liquid slag height and controls dress
It sets, calandria (auxiliary heating and heat preservation) is arranged in side wall, and setting inorganic waste in top (only melts) entrance to it；It is described
The laminar flow inclination siege of laminar flow channel bottom is set as along liquid slag flow direction diagonally downward, and angle with horizontal plane is 5-15 °
(the boundaries condition design such as discarded species, the mobility of liquid slag, viscosity, treating capacity, residence time), the liquid slag height
Control device and laminar flow inclination siege are vertically arranged (the scalable control liquid slag height of device)；Along liquid slag flow direction two sides
Wall is respectively provided with calandria, and the calandria is that high energy electric heater or plasma generator (assist heating and heat preservation, can maintain
1400-1600 DEG C of high temperature of melting zone)；The inorganic waste entrance inclined direction of the top setting is along liquid slag flowing side
To angle with horizontal plane is the 60-80 ° of (boundaries such as discarded species, the mobility of liquid slag, viscosity, treating capacity, residence time
Condition design, inorganic waste pressure squeeze into melting zone, can effectively decompose the pollutants such as dioxin, realize containing heavy metal
The melt process of bottom ash, flying dust etc.).
Maintenance door is arranged in setting spray assemblies and steam (vapor) outlet at the top of the waterway of the water cooling crushing system, side wall, in
Vitreum pulverizer is arranged in portion, and water seal slag removing system is arranged in bottom.The spray assemblies of the water cooling crushing system are set to melting
Slag outlet top, vertical direction face liquid slag outlet (can just water cooling to liquid slag ontology, curing heavy metal), spray assemblies
In the both walls setting spray inlet (strengthening boundary water cooling, prevent boundary cooling insufficient) of waterway, angle with horizontal plane is
30-60 ° (utilizes the perimeter strips such as water cooling chamber size, mounting height, spray length, quantity and size, discarded species, treating capacity
Part design), the steam (vapor) outlet is set to far from liquid slag outlet outside top (a large amount of high-temperature steams can exclude).It is described to set
The vitreum pulverizer being placed in the middle part of waterway is located at liquid slag outlet lower section, and vitreum pulverizer is embedded in laminar flow uphill furnace bed
Lower section, be embedded in having a size of two crushing wheel installation dimensions arranged side by side 1/4-3/4 (realize vitreum slag enter two crushing wheels it
Between), two crushing wheel energy positive and negative rotations work (preventing from getting stuck).
The steam utilization steam exhaust fan injection gasifying agent mixer generated in the waterway, the gasifying agent mixer
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 generates returns to water-cooling system.The extra cooling water of the water seal slag removing system injects water using back water pump
Cooling system is recycled.
The boiler system includes boiler body, circulation air feed system, and the boiler body has cyclone combustion chamber, furnace chamber
A, smoke inlet, the smoke inlet of cyclone combustion chamber and the first flue gas is arranged in the lower end of furnace chamber b, furnace chamber c, the cyclone combustion chamber
Denitrfying agent jetting device is arranged on the pipeline that the smoke inlet of cyclone combustion chamber is connect with the first exhanst gas outlet for outlet, uses
In carrying out denitration process to flue gas, liquefied ammonia is can be used in denitrfying agent, removes the NOx in flue gas, high temperature denitration；Cyclone combustion chamber upper end
For third exhanst gas outlet, the cyclone combustion chamber is equipped with several combustion airs for air port, and several combustion airs are located at for air port
Between smoke inlet, third exhanst gas outlet, the third exhanst gas outlet of cyclone combustion chamber upper end is connected to 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 are arranged 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, and evaporator, the top setting of boiler body are provided in furnace chamber b
Drum, the cyclone combustion chamber, furnace chamber a, furnace chamber b are respectively positioned below drum, and the drum is equipped with carbonated drink import, are set 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
The water that water separator is isolated out, drum connect the water inlet of evaporator by the second down-comer, for exporting carbonated drink point
From the water that device is isolated, the water-cooling wall, evaporator venthole respectively by steam pipe connect drum air intake, be used for back
High-temperature steam is flowed, the saturated vapor outlet of the drum connects the air intake of superheater, the high temperature for will flow back by pipeline
Steam inputs in superheater, and the venthole connection steam output device of the superheater exports superheated steam, steam output device
It has utilized the condensed water of steam generation to input to water input system to recycle.
The circulation air feed system includes steam exhaust fan, for blower, gasifying agent mixer, and the steam exhaust fan enters
Mouth end is connect by pipeline with the steam (vapor) outlet at the top of waterway, and the steam generated in the waterway is infused by steam exhaust fan
Enter an air inlet of the gasifying agent mixer, the air inlet for blower is communicated with the atmosphere, the outlet for blower
The air preheater being arranged at mouth connection furnace chamber b waste gas outlet, the air preheater connect the general pipeline of a tracheae, the tracheae
Branch pipe respectively with below gasifying agent mixer another air inlet, gasification furnace dryer section an air compartment, gasification furnace it is secondary
It is connected to for the combustion air on air port and the cyclone combustion chamber for air port, in the present embodiment, is equipped with air again in the furnace chamber b
Heater, the gasifying agent mixer connect the tracheae by pipeline again after connecting air reheater by pipeline.It is described
Gasifying agent mixer forms mixing gasifying for the steam of mixed vapour exhaust fan extraction and the high temperature air of boiler system discharge
Agent, the hybrid gasification agent feed melting burner hearth from gasification agent inlet, and hybrid gasification agent is also used as gasification furnace First air to feed gas
Change an air compartment below furnace gasification section.The condensed water that the hybrid gasification agent mixed process generates inputs water cooling system by pipeline
System, the extra cooling water of the water seal slag removing system are recycled using back water pump injection water-cooling system.
One end that the melting burner hearth is connect with gasification furnace is the waste main-inlet for melting burner hearth, the melting burner hearth side
Waste sub-inlet is arranged in wall again, and the waste sub-inlet connects waste pair material-pulling device, and waste pair material-pulling device is used
In in the residue push-in melting burner hearth by an air compartment each below gasification furnace, inorganic waste is set 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 used for pot
In the inorganic residues push-in laminar flow channel that furnace system is collected.
The upper end of the furnace chamber c is connected to the waste gas outlet of the upper end furnace chamber b, and Waste gas outlet, institute is arranged in the lower end of furnace chamber c
It states and is equipped with economizer in furnace chamber c, the water inlet of the economizer is connected to the water outlet to water input system, the economizer
The carbonated drink inlet communication of water outlet and drum.Flue gas purification system is also added in the present embodiment, the Waste gas outlet of furnace chamber c connects
Flue gas purification system is connect, the flue gas purification system includes the aeration tower, bag filter, air inducing being sequentially connected in series along discharge directions
Depickling drug jetting device is arranged in machine, fine purifiation deduster, chimney, the roof of the aeration tower, and active carbon is arranged in the side wall of aeration tower
Jetting device.
Depickling drug (lime white can be used) is sprayed into from aeration tower, removes the sour gas such as SOx, HCl, HF in flue gas, it is low
Warm neutralization reaction；Active carbon sprays into heavy metal, dioxin etc. in absorption flue gas；Bag filter collects the flying dust in flue gas；
Fine purifiation deduster, which is quenched, washes flue gas formula pollutant, and collects micronic dust, realizes flue gas pollutant minimum discharge.
A kind of castoff fusing curing process system processing method, this method sequentially include the following steps:
Step A, furnace lifting, baker；
The gate of castoff fusing curing process system and atmospheric vent is closed, castoff fusing curing process system is started
Waste materials are put into feed hopper by system, waste pusher pusher back and forth, the waste materials that will be fallen from feed hopper
The windrow seal section being pushed between feed hopper, gasification furnace, makes windrow seal section form windrow sealing state, and extra waste is fallen
Enter the moving hearth of gasification furnace, the moving hearth work of gasification furnace, until waste is accumulated to institute in the moving hearth of gasification furnace
The thickness 800-1000mm needed, stops feeding intake to feed hopper, the moving hearth of waste pusher and gasification furnace stops working, and opens
The side wall calandria baking melting burner hearth and laminar flow channel of dynamic high-temperature burner and laminar flow channel, to castoff fusing curing process
System carries out furnace lifting, baker, and castoff fusing curing process system burner hearth is made to reach 600-700 DEG C of predetermined temperature；
Step B, make waste pyrolytic gasification in gasification furnace, residue enters melting in melting burner hearth；
Gradually rise castoff fusing curing process system fire box temperature using high-temperature burner and calandria, restore to
Feed bin feeds intake, and the moving hearth of waste pusher and gasification furnace is started to work, and feeds gasifying agent, enters gasifying agent by adjusting
The air themperature of mixer stablizes hybrid gasification agent temperature at 400-500 DEG C, adjusts each technological parameter of gasification furnace, make to give up
Gurry pyrolytic gasification in gasification furnace, gasification furnace atmosphere temperature are stablized at 800-900 DEG C, gasification furnace slag mouth blanking, to discarded
Object pyrolytic gasification residue is accumulated to required thickness, the i.e. 3/4-1 of laminar flow channel height on laminar flow inclination siege, utilizes high temperature
Burner and calandria gradually rise castoff fusing curing process system fire box temperature, reach 1000 DEG C of residues and start to melt,
Continue to heat up, continue to feed intake to feed hopper, persistently carries out pyrolytic gasification process, while secondary material-pulling device collects each air compartment
Residue fed from waste sub-inlet, according to the first exhanst gas outlet synthesis gas components, 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 waste is in molten state；
Step C, melt inorganic waste in laminar flow channel；
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel guarantees laminar flow channel temperature dimension
It holds at 1400-1600 DEG C, material is pressed into from inorganic waste entrance using inorganic waste material-pulling device, with high-temperature molten-state slag
Contact melting；
Step D, liquid slag water cooling is solidified into vitreum slag, and is crushed, deslagging；
Start water-cooling system and vitreum pulverizer, when molten state slag exports outflow laminar flow channel through liquid slag, melting
Slag obtains water cooling, forms vitreum slag, falls on vitreum pulverizer and is crushed, then fall into water seal slag removing system, through slag remover
Transport discharge, liquid slag water cooling generate steam, inject gasifying agent mixer using steam exhaust fan, steam and high temperature air are formed
Hybrid gasification agent feeds melting burner hearth from gasification agent inlet, and hybrid gasification agent is also used as gasification furnace First air to feed gasification hearth；
The condensed water that mixed process generates returns to water-cooling system, and liquid slag Cooling Process generates extra cooling water deposit water seal except slag system
System is recycled using back water pump injection water-cooling system；
Step E, after rolling to castoff fusing slag row, castoff fusing curing process system is closed.
It need to overhaul or when blowing out, feed hopper, gasification furnace slag mouth, waste sub-inlet and inorganic waste entrance stop
Charging adjusts each technological parameter of castoff fusing curing process system, after rolling to castoff fusing stream, closes high-temperature burner
With the side wall calandria of laminar flow channel, cleaning circulation air feed system, water cooling crushing system and water seal slag removing system close waste
Melting and solidification processing system.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of castoff fusing curing process system, it is characterised in that: the melting and solidification processing system includes along charging side
To melting burner hearth, laminar flow channel, water cooling crushing system and the water seal slag removing system set gradually, the feed end of the melting burner hearth
For the waste main-inlet for melting burner hearth, for connecting with gasification furnace, the melting burner hearth side wall is provided with high-temperature burner, gas
Agent entrance, the castoff fusing for making to enter melting burner hearth from gasification furnace, the laminar flow channel are located at melting burner hearth discharging
End lower section, laminar flow channel bottom are that laminar flow tilts siege, and the water cooling crushing system includes water-cooling system, waterway and glass
Body pulverizer, the waterway are located at laminar flow channel front lower place, setting spray assemblies and steam (vapor) outlet at the top of waterway, the water
The water for being used for water cooling is inputted spray assemblies, the steam that the steam (vapor) outlet output water cooling generates, the vitreum powder by cooling system
Broken machine is arranged in the middle part of waterway, and for crushing the vitreum slag formed after liquid slag water cooling, the water seal slag removing system is set to
The lower section of waterway, the discharge end of water seal slag removing system connect vitreum slag outlet, and the water seal slag removing system is for sealing
Waterway lower end further cools down vitreum slag, and exports vitreum slag.
2. castoff fusing curing process system according to claim 1, it is characterised in that: on the melting burner hearth roof
Equipped with water conservancy diversion rear arch and baffle pier, flue gas is made to horizontally enter into gasification hearth, increases the radiating surface of waste and the cigarette of gasification hearth
Gas disturbance.
3. castoff fusing curing process system according to claim 1, it is characterised in that: the laminar flow inclination siege goes out
Expect that liquid slag height controller is arranged in end, the height controller includes baffle and the driving for driving baffle flexible
Part.
4. castoff fusing curing process system according to claim 1, it is characterised in that: the laminar flow channel side wall is set
It sets calandria and carries out auxiliary heating and heat preservation.
5. castoff fusing curing process system according to claim 1, it is characterised in that: further include steam exhaust fan,
For blower, gasifying agent mixer, the arrival end of the steam exhaust fan is connect by pipeline with the steam (vapor) outlet at the top of waterway,
The steam generated in the waterway injects an air inlet of the gasifying agent mixer, the air feed by steam exhaust fan
The air inlet of machine is communicated with the atmosphere, and the gas outlet for blower is connected to another air inlet of gasifying agent mixer, the gas
Steam of the agent mixer for the extraction of mixed vapour exhaust fan and the air for blower offer form hybrid gasification agent, described mixed
It closes gasifying agent and feeds melting burner hearth from gasification agent inlet.
6. castoff fusing curing process system according to claim 5, it is characterised in that: the hybrid gasification agent mixing
The condensed water that process generates inputs water-cooling system by pipeline, and the extra cooling water of the water seal slag removing system is infused using back water pump
Enter water-cooling system recycling.
7. a kind of castoff fusing solidification processing method, it is characterised in that: solidify including castoff fusing described in claim 1
Processing system, this method sequentially include the following steps:
Step A, furnace lifting, baker
The gate of castoff fusing curing process system and atmospheric vent is closed, starts castoff fusing curing process system, opens
The side wall calandria baking melting burner hearth and laminar flow channel of dynamic high-temperature burner and laminar flow channel, to castoff fusing curing process
System carries out furnace lifting, baker, and castoff fusing curing process system burner hearth is made to reach 600-700 DEG C of predetermined temperature；
Step B, residue is made to enter melting in melting burner hearth
Melting fire box temperature is gradually risen using high-temperature burner and calandria, feeds gasifying agent, enters gasifying agent by adjusting
The air themperature of mixer stablizes hybrid gasification agent temperature at 400-500 DEG C, adjusts castoff fusing curing process system
Each technological parameter, the 3/4 of laminar flow channel height is accumulated to pyrolysis of waste residue after gasifying to being paved on laminar flow inclination siege,
Castoff fusing curing process system fire box temperature is gradually risen using high-temperature burner and calandria, reaches 1000 DEG C of residues and opens
Begin to melt, continues to heat up, continue to feed intake, temperature is increased to 1400-1600 DEG C, and waste is in molten state；
Step C, melt inorganic waste in laminar flow channel
When molten state slag progresses into laminar flow channel, the side wall calandria control of laminar flow channel guarantees that laminar flow channel temperature maintains
1400-1600℃；
Step D, liquid slag water cooling is solidified into vitreum slag, and is crushed, deslagging
Start water-cooling system and vitreum pulverizer, when molten state slag exports outflow laminar flow channel through liquid slag, liquid slag is obtained
To water cooling, vitreum slag is formed, falls on vitreum pulverizer and is crushed, then fall into water seal slag removing system, transported through slag remover
Discharge, liquid slag water cooling generate steam, inject gasifying agent mixer using steam exhaust fan, steam and high temperature air form mixing
Gasifying agent feeds melting burner hearth from gasification agent inlet, and the condensed water that mixed process generates returns to water-cooling system, liquid slag water cooling mistake
Journey generates extra cooling water deposit water seal slag removing system, is recycled using back water pump injection water-cooling system；
Step E, after rolling to castoff fusing slag row, castoff fusing curing process system is closed.
8. castoff fusing solidification processing method according to claim 7, it is characterised in that: need to overhaul or when blowing out, give up
Gurry main-inlet stops charging, adjusts each technological parameter of castoff fusing curing process system, after rolling to castoff fusing stream,
The side wall calandria of high-temperature burner and laminar flow channel is closed, water cooling crushing system and water seal slag removing system are cleared up, is closed discarded
Object melting and solidification processing system.
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| CN109140461A (en) * | 2018-07-31 | 2019-01-04 | 哈尔滨工业大学 | Dangerous waste high-temperature fusion crystallite purification device and exhaust purifying method |
| CN112961695A (en) * | 2020-12-31 | 2021-06-15 | 童铨 | Solid waste anaerobic pyrolysis and high-temperature melting treatment process and system |
| CN112781058A (en) * | 2021-01-20 | 2021-05-11 | 童铨 | Hazardous waste heat multistage utilization integrated equipment and utilization method |
| CN113045363B (en) * | 2021-02-08 | 2023-06-13 | 杭州三得农业科技有限公司 | Dielectric barrier temperature field hearth and use method thereof |
| CN115507365A (en) * | 2022-10-08 | 2022-12-23 | 海南智会环保科技有限公司 | Hazardous waste high-temperature melting harmless treatment system |
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| CN101648200A (en) * | 2009-07-15 | 2010-02-17 | 徐州市润博等离子体环保设备有限公司 | Method and device for heating, melting and cracking waste plasma arc in auxiliary mode |
| CN105465792B (en) * | 2015-12-29 | 2017-08-04 | 重庆科技学院 | The circulation air feed system of stoker fired grate formula refuse gasification incinerator |
| CN105627324B (en) * | 2015-12-31 | 2018-02-02 | 重庆科技学院 | The double boiler electricity generation system of synthesis gas is burned using refuse gasification |
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