CN205261569U - Double -deck mechanical stoker formula waste gasification system of burning - Google Patents

Abstract

The utility model discloses a double -deck mechanical stoker formula waste gasification system of burning, burn burning furnace including double -deck waste gasification, double -deck waste gasification burns burning furnace and includes for feed bin, gasifier and fire the cinder stove, fires the cinder stove and lies in the gasifier under, and the feed direction who fires the cinder stove is opposite with the feed direction of gasifier, and give and be equipped with the windrow seal section between feed bin, the gasifier, gasifier and fire and be provided with the residue stoker between the cinder stove, the upper end of gasifier, the upper end of firing the cinder stove set up the exhanst gas outlet, and double -deck mechanical stoker formula waste gasification burns burning furnace and has circular air supplying system. Method for waste treatment includes: step A, a stove, baker, step B, messenger's rubbish burn in the furnace of gasifier, step C, the continuous gasification incineration of realization rubbish handle, step D, fire the cinder after, close double -deck mechanical stoker formula waste gasification and burn burning furnace. Use this double -deck mechanical stoker formula waste gasification to burn burning furnace refuse disposal, garbage treatment amount is bigger, and thermal recovery efficiency is higher, can reduce pollution discharge amount effectively.

Description

Double-deck stoker fired grate formula refuse gasification CIU

Technical field

The utility model belongs to solid waste incineration processing technology field, relates in particular to double-deck stoker fired grateFormula refuse gasification CIU.

Background technology

Existing technology of garbage disposal mainly contains burning, sanitary landfills, compost, waste recovery etc. At rubbishRubbish is processed in routine techniques, and burning disposal has decrement successful, and innoxious thoroughly occupation of land amount is little,The advantages such as waste heat energy is utilized, and secondary pollution is few, meet the strategic requirement of China's sustainable development. ButTo the improving constantly of environmental requirement, how to strengthen the control of secondary pollution particularly important along with both at home and abroad.Therefore, refuse pyrolysis gasification burning technology is shifted onto on the road of industrial applications gradually, particularly forWhat domestic rubbish mainly adopted now is all kinds of incineration technologies, and the industrialization widely of gasification burning technology will be withCarrying out the technological innovation of domestic garbage disposal industry regenerates.

For many years, the scientific research of China to the gasification burning such as living beings, rubbish technology, make progress a lot of,The basic research in laboratory is a lot, also has application study, as: rotary kiln type, vertical and fluidized bed typeDestructive gasifying or temperature gasification and high fusion technology etc. But in Technique Popularizing application, still there is certain limitation, formerMaterial kind, garbage treatment quantity, secondary pollution control and economic benefit etc. are principal elements.

In existing burning process and equipment, fire grate type incinerator is various informative, and its application accounts for the whole worldThe more than 80% of the waste incineration total market size, wherein has and in body of heater, adopts mechanical type backstepping fire grate, forwardsFire grate or combined fire grate, also have the fire grates such as the chain-plate type of employing and drum-type.

In sum, typical refuse gasification incinerator, respectively has himself advantage, but answers China is actualThe problem and shortage solving with middle needs:

1. the characteristic such as, complicated component high for China's house refuse water content, the utilization of moving hearth,Need emphasis to consider to the conveying capacity of rubbish.

2. along with being on the increase of refuse production, sanitary fill is as mountain, and garbage treatment quantity must be hadThe raising of effect, could meeting the market requirement.

3. in the face of strict pollutant emission requirement, secondary pollution control is the technical core that needs solutionProblem.

4. in order effectively to increase economic efficiency, in rubbish heat treatment process, the organic efficiency of heat needsImprove. Existing rubbish heat treatment technics conventionally adopts boiler to produce steam and shifts steam turbine power generation onto, wholeTransition heat efficiency losses is larger, processes identical quantity of refuse, relatively reduces thermal losses and improves heat exchange effectRate just can improve the thermal efficiency.

Existing refuse gasification incinerator is as following two utility model patents: multiple row sectional drive combined typeDomestic waste incineration (ZL200710092508.9) and two-stage garbage incinerator(ZL201010268376.2) an open question in: rubbish heat treatment mode is relatively backward, just dryDry-to burn-to burn, the process of solid combustion release heat; Thermal chemical reaction is taking oxidation reaction as main in stove,Reduction reaction is auxiliary, easily produces secondary pollution; When rubbish burns in stove, cross oxygen quotient large, onceWind, Secondary Air infeed amount are large, and in flue gas, dust content is higher, and heat reclaiming system and flue gas are processed to systemSystem impact is larger, easily dust stratification, and exhaust gas volumn is larger, has reduced thermal conversion efficiency; Do not arrange separatelyGasification furnace and incinerator, can only gradation disposal of refuse, cannot realize large-scale rubbish continuous gasification and burnProcess, garbage treatment quantity is less.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of double-deck stoker fired grate formula is providedRefuse gasification CIU, uses this double-deck stoker fired grate formula refuse gasification CIU disposal of refuse, rubbishRubbish conveying capacity is stronger, and garbage treatment quantity is larger, can reduce thermal losses and improve heat exchanger effectiveness, heatThe organic efficiency of amount is higher, and can effectively reduce pollutant discharge amount.

The purpose of this utility model is achieved in that

A kind of double-deck stoker fired grate formula refuse gasification CIU, comprises double-deck refuse gasification incinerator, instituteState double-deck refuse gasification incinerator and comprise grate, on described grate along feedstock direction be disposed with feed hopper,Gasification furnace, is also provided with incinerator on described grate, described incinerator be positioned at gasification furnace under, burnThe feedstock direction of stove is contrary with the feedstock direction of gasification furnace, described feed hopper discharging opening and gasification furnace charging apertureBetween grate part be provided with windrow seal section, the charging aperture of described gasification furnace discharging opening and incinerator itBetween grate part be provided with the transition slag section that falls, the transition slag section that falls can form windrow sealing state, described stoveFrame is provided with garbage pusher device, residue pusher, and described garbage pusher device is positioned at the below of feed hopper, rubbishCutting somebody's hair of rubbish pusher stretched in windrow seal section, for the rubbish in feed hopper is pushed in gasification furnace,Described residue pusher is between gasification furnace and incinerator, and the cutting somebody's hair of residue pusher stretched into the transition slag that fallsIn section, for the rubbish residue falling in gasification furnace is pushed in incinerator;

Described gasification furnace, incinerator comprise respectively furnace shell, moving hearth, the forward and backward side of described gasification furnaceRespectively by fall slag section sealing of windrow seal section, transition, described transition fall slag section isolation gasification furnace, burnStove, makes gasification furnace, incinerator separate;

The below of the below of described gasification furnace moving hearth and described incinerator moving hearth be respectively equipped with toA few independent air compartment arranging, described gasification furnace, incinerator are respectively the shape that arches upward, described gasificationSecondary is set respectively for air port on the face arch of stove, rear arch, the vault of described gasification furnace arranges the first flue gas and goes outMouthful, the vault of described incinerator arranges a wind of the below of the second exhanst gas outlet and gasification furnace moving hearthChamber correspondence, the second exhanst gas outlet connects by flue with a corresponding air compartment, described gasification furnace,On incinerator, be respectively equipped with igniting combustion supporting hole;

Also comprise circulation air feed system, described circulation air feed system comprises dust arrester, the first blower fan,Two blower fans, the inlet end of described dust arrester connects the house steward of the 4th manifold, the arm of described the 4th manifoldBe connected with an air compartment of the below of gasification furnace moving hearth, on the arm of described the 4th manifold, arrange the 4thControl valve, the outlet side of described dust arrester is connected with the inlet end of the first blower fan by pipeline, and describedThe outlet side of one blower fan connects the house steward of the first manifold, the arm of described the first manifold respectively with gasification furnace beforeSecondary on arch, rear arch is communicated with for air port, on each arm of described the first manifold, the first adjusting is set respectivelyValve, the air inlet of described the second blower fan is communicated with atmosphere, and the gas outlet of described the second blower fan connects the second discriminationThe house steward of pipe, the arm of described the second manifold is respectively with flue and incinerator moving hearth belowOne time air compartment is communicated with, and on each arm of described the second manifold, the second control valve is set respectively.

In order to reduce thermal losses and to improve heat exchanger effectiveness, make the organic efficiency of heat higher, preferably,Also comprise the cyclone combustion chamber for second-time burning, the upper end of described cyclone combustion chamber is provided with combustion chamber ignitingCombustion-supporting hole, the lower end of cyclone combustion chamber is provided with the taper slag notch that radius diminishes from top to bottom, described whirlwindThe top of combustion chamber circle wall arranges smoke inlet, and the bottom of described cyclone combustion chamber circle wall arranges the 3rdExhanst gas outlet, is evenly provided with some combustion airs for air port in the circle wall of described cyclone combustion chamber, each combustion-supportingWind supplies air port all between smoke inlet, the 3rd exhanst gas outlet.

For the high-temperature flue gas producing after making to burn is easily discharged, and be beneficial to the installation of pipeline, preferably,Described smoke inlet, the 3rd exhanst gas outlet are positioned at the opposition side of cyclone combustion chamber circle wall; Described the 3rd cigaretteGas outlet radially or tangentially arranges along cyclone combustion chamber circle wall.

For the wind that utilizes more fully the second blower fan to bloat, and be beneficial to meticulousr adjusting whirlwind combustionThe intake that burns chamber each several part, preferably, also comprises the 3rd manifold, the house steward of described the 3rd manifold and theThe gas outlet of two blower fans is communicated with, and each arm of described the 3rd manifold is communicated with for air port with each combustion air respectively,The 3rd control valve is set respectively on each arm of the 3rd manifold.

Do not utilize remainder flue gas for what utilize that high-temperature blower extracts, preferably, described the first discriminationPipe also has an arm being connected with cyclone combustion chamber smoke inlet, and this arm is provided with the 5th control valve.This structure can reduce thermal losses and improve heat exchanger effectiveness, has greatly improved the organic efficiency of heat, andCan effectively reduce pollutant discharge amount.

In order better to adapt to the installing space in factory, the face arch of described gasification furnace is straight structure, orPerson, the face arch of gasification furnace is the rear end structure that is inclined upwardly.

For the high-temperature flue gas of effectively incinerator being discharged carries out dedusting, preferably, described dust arresterFor cyclone separator or hot precipitator; Described the first blower fan is high-temperature blower, is beneficial in hot environmentLower work, described the second blower fan is air blast.

In order to prevent altering wind between gasification furnace, incinerator, preferably, described transition falls in slag section and is provided withIsolating door to be opened/closed, described isolating door is for cutting off gasification furnace, incinerator. At furnace lifting initial stage or needControl while altering wind between gasification furnace and incinerator, close isolating door, when falling, slag section is stacked a certain amount of residualSlag forms after windrow sealing, can keep isolating door to open, and coordinates to make with the residue pusher that below arrangesWith, to realize rubbish continuous gasification burning disposal.

A processing method for double-deck stoker fired grate formula refuse gasification CIU, the method according to the following stepsCarry out:

Steps A, close the gate that double-deck stoker fired grate formula refuse gasification incinerator and atmosphere ventilate, start twoLayer refuse gasification incinerator, drops into feed hopper by garbage raw material, and garbage pusher device pusher back and forth willThe garbage raw material falling from feed hopper pushes the windrow seal section between feed hopper, gasification furnace, makes windrow closeEnvelope section forms windrow sealing state, and unnecessary rubbish falls into the moving hearth of gasification furnace, the movement of gasification furnaceSiege work, is conveyed into the transition slag section that falls by rubbish, and residue pusher pusher back and forth, falls transitionRubbish in slag section pushes in incinerator, and the moving hearth work conveying garbage of incinerator, until rubbish existsThe moving hearth of gasification furnace, incinerator is accumulated to required thickness, stops feeding intake to feed hopper, and gasification furnaceQuit work with the moving hearth of incinerator, then, with start-up burner by gasification furnace and incineratorIgniting combustion supporting hole communicates with the burner hearth of gasification furnace and incinerator respectively, under the effect of start-up burner, rightGasification furnace and incinerator carry out furnace lifting, baker, treat that this process stabilization completes, and makes gasification furnace and incineratorBurner hearth reaches predetermined temperature 600-700 DEG C;

Step B, startup regulate circulation air feed system, regulate gasification furnace, incinerator and circulation air feed systemTechnological parameter, feed intake to feed hopper, the moving hearth work conveying garbage of gasification furnace, rubbish gasificationIn the burner hearth of stove, start to burn, rubbish residue is piled up and is formed windrow sealing at the transition slag section place that falls, and makesMore than the stove chamber inner combustion state temperature stabilization to 850 of gasification furnace DEG C, the moving hearth work output of incineratorRubbish residue after burning;

Step C, regulate each technological parameter of gasification furnace, incinerator and circulation air feed system, gasification furnace byGradually rubbish is gasified, make the synthesis gas of the stable 10%-20% of generation of gasification furnace, make incinerator fired stateMore than temperature stabilization to 850 DEG C, high-temperature flue gas enters air compartment of gasification furnace from the second exhanst gas outlet correspondence,Feed gasification furnace, realize rubbish continuous gasification burning disposal;

Step D, need maintenance or when blowing out, stop feeding intake, regulating gasification furnace, incinerator and circulation air feedThe technological parameter of system, makes gasification furnace return to gradually fired state, after rubbish and rubbish residue burn,Close double-deck stoker fired grate formula refuse gasification incinerator and circulation air feed system.

For by cyclone combustion chamber and double-deck stoker fired grate formula refuse gasification incinerator and circulation air feed systemComprehensively control, preferably, in step C, regulate each technological parameter of cyclone combustion chamber simultaneously, makeMore than cyclone combustion chamber the 3rd exhanst gas outlet temperature stabilization to 850 DEG C; In step D, regulate whirlwind combustion simultaneouslyThe each technological parameter that burns chamber, makes gasification furnace return to gradually fired state, after gas to be synthesized burns, closes and revolvesWind combustion chamber.

Owing to having adopted technique scheme, the utlity model has following beneficial effect:

1. between feed hopper, gasification furnace, be provided with windrow seal section, make gasification furnace front can carry out windrow closeEnvelope, the transition of gasification furnace, the incinerator slag section that falls also can form windrow sealing state, and making can after gasification furnaceTo form windrow sealing, make the heat preservation and insulation of gasification furnace better, can in refuse gasification burning processTo prevent heat leak, save fuel.

2. gasification furnace, incinerator divide and are arranged, and on the face arch of gasification furnace, rear arch, secondary air feed are set respectivelyMouthful, the vault of gasification furnace arranges the first exhanst gas outlet, and the vault of incinerator arranges the second exhanst gas outlet, theTwo exhanst gas outlets are connected with flue, and the air feed system that makes to circulate is more simplified, and greatly reduces gasificationImpurity in kiln gas, can provide the more flue gas of high-quality, makes the utilization rate of flue gas higher, dischargeWaste residue still less.

3. incinerator is positioned at the below of gasification furnace, has greatly reduced length and the space hold of incinerator.

4. the utility model is novel, and garbage treatment quantity is large, and the rubbish bed of material experiences dry on stoker fired grateIn the stage that burns of dry, gasification and residue, adapt to the characteristics such as China's house refuse water content is high, complicated component,Improve the energy conversion efficiency in garbage processing procedure and reduced pollutant discharge amount in flue gas, effectively anti-Only secondary pollution, and can realize large-scale rubbish continuous gasification burning disposal, ensure that refuse gasification burnsBurn effect and the hot burn decrement rate of lime-ash, relatively reduce thermal losses and improve heat exchanger effectiveness, improved the thermal efficiency.

5. air blast blasts air and adjusts by the second control valve on corresponding pipeline for incinerator provides windJoint wind supply quantity, fully burns incinerator residue; Air blast blasts air and supplies for flue provides temperature adjustmentWind, regulates wind supply quantity by the second control valve on corresponding pipeline, makes flue to gasification furnace onceAir compartment provides a wind of preference temperature, then, and the cigarette in an air compartment of high-temperature blower extraction gasification furnaceGas, by the blast of the 4th control valve adjusting flue gas on the 4th manifold arm, passes through temperature-adjustment pressure-adjustment and revolvesWind separator is collected after flying dust, and the flue gas that forms certain pressure is supplied with the Secondary Air of gasification furnace, by firstThe first control valve on the corresponding arm of manifold regulates wind supply quantity, makes rubbish in gasification furnace produce gasification, containsThe flue gas of a certain amount of synthesis gas, discharges from the first exhanst gas outlet, enters cyclone combustion chamber processing links, revolvesWind combustion chamber provides high-temperature flue gas.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of cyclone combustion chamber in Fig. 1.

Reference numeral

1 is double-deck stoker fired grate formula refuse gasification incinerator, and 101 is grate, and 102 is feed hopper, 103For gasification furnace, 104 is incinerator, and 105 is moving hearth, and 106 is garbage pusher device, and 107 for onceAir compartment, 108 is windrow seal section, and 109 is the transition slag section that falls, and 110 is residue pusher, and 111 is isolationDoor, 112 is the first exhanst gas outlet, and 113 is the second exhanst gas outlet, and 114 is igniting combustion supporting hole, and 115 is twoInferior to air port, 116 is flue;

2 is circulation air feed system, and 201 is dust arrester, and 202 is the first blower fan, and 203 is the second blower fan,204 is the first manifold, and 205 is the second manifold, and 206 is the 3rd manifold, and 207 is the first control valve, 208Be the second control valve, 209 is the 3rd control valve, and 210 is the 4th manifold, and 211 is the 4th control valve, 212It is the 5th control valve;

3 is cyclone combustion chamber, and 301 is igniting combustion supporting hole, combustion chamber, and 302 is taper slag notch, and 303 areSmoke inlet, 304 is the 3rd exhanst gas outlet, 305 for combustion air is for air port.

Detailed description of the invention

Referring to Fig. 1, be a kind of preferred embodiment of double-deck stoker fired grate formula refuse gasification CIU, bagDraw together double-deck refuse gasification incinerator 1, described double-deck refuse gasification incinerator 1 comprises grate 101, described stoveOn frame 101, be disposed with feed hopper 102, gasification furnace 103 along feedstock direction, on described grate 101, go backBe provided with incinerator 104, described incinerator 104 be positioned at gasification furnace 103 under, the entering of incinerator 104Material direction contrary with the feedstock direction of gasification furnace 103, gasification furnace 103 be mainly to rubbish contain charcoal partGasify, and discharge flammable gasification flue gas and rubbish residue, incinerator 104 mainly carries out carbon residueBurning is processed, and discharges innoxious lime-ash. Described feed hopper 102 discharging openings and gasification furnace 103 chargingsMouthful between grate 101 parts be provided with windrow seal section 108, described gasification furnace 103 discharging openings with burnGrate 101 parts between the charging aperture of stove 104 are provided with the transition slag section 109 that falls, the transition slag section 109 that fallsCan form windrow sealing state.

Described grate 101 is provided with garbage pusher device 106, and described garbage pusher device 106 is positioned at feed hopper102 below, cutting somebody's hair of garbage pusher device 106 stretched in windrow seal section 108, for by feed hopperRubbish in 102 pushes in gasification furnace 103, and cutting somebody's hair of garbage pusher device 106 pushes away at windrow seal section 108Enter half stroke, garbage raw material is put into and is fallen from feed hopper 102, and garbage pusher device 106 retreats, then pushes awayEnter, pusher forms windrow at windrow seal section 108 back and forth, makes gasification furnace 103 entrances in windrowSealing state, strengthens gasification furnace 103 sealing effectiveness, solves garbage pusher device 106 and feed hopper 102 and holdsEasily gas leakage problem. While needing complete prepurging to dispose all rubbish, garbage pusher device 106 forward impelling againHalf stroke, pushes rubbish in gasification furnace 103 completely, makes gasification furnace 103 entrances lose windrow sealingEffect.

Described grate 101 is provided with residue pusher 110, and described residue pusher 110 is positioned at gasification furnace103 and incinerator 104 between, the cutting somebody's hair of residue pusher 110 stretched into transition and fallen in slag section 109, forThe rubbish residue falling in gasification furnace 103 is pushed in incinerator 104. Transition falls slag section 109 in accumulationWhen rubbish residue, can, in windrow sealing state, strengthen gasification furnace 103 sealing effectiveness, solution gasification furnace 103,Between incinerator 104, go here and there the problem of wind. In the present embodiment, described transition falls, and be provided with in slag section 109 canThe isolating door 111 opening and closing, described isolating door 111 is for cutting off gasification furnace 103, incinerator 104. ?The furnace lifting initial stage maybe needs to control while altering wind between gasification furnace 103 and incinerator, closes isolating door 111, when fallingSlag section is stacked a certain amount of residue and is formed after windrow sealing, can keep isolating door 111 to open, with belowThe residue pusher 110 arranging is coordinated to use, to realize rubbish continuous gasification burning disposal.

Described gasification furnace 103, incinerator 104 comprise respectively furnace shell, moving hearth 105, described gasification furnace103 forward and backward side seals by windrow seal section 108, the transition slag section 109 that falls respectively, and described transition fallsSlag section 109 is isolated gasification furnace 103, incinerator 104, makes gasification furnace 103, incinerator 104 separate.The moving hearth 105 of gasification furnace 103 and incinerator 104 all adopts the stoker fired grate formula of segmentation driveMoving hearth 105, the fire grate of stoker fired grate formula moving hearth 105 is by moving grate plate and fixed grate plateForward lap, collect and form alternately, adjacent many groups moving grate plate connects by pull bar, adoptsA set of drive unit drives. Stoker fired grate formula moving hearth 105 is as the carrier of conveying garbage, its enforcementMode can be all types of moving hearths 105, as chain-plate type, drum-type, multisection type fire grate system etc.

The below of described gasification furnace 103 moving hearths 105 and described incinerator 104 moving hearths 105Below be respectively equipped with the air compartment 107 that at least one independently arranges, with one of gasification furnace 103 first halfsFire grate, the drive unit of inferior air compartment 107 correspondences, as the dryer section of gasification furnace 103 moving hearths 105,Fire grate that an air compartment 107 latter half of with gasification furnace 103 is corresponding, drive unit are as gasification furnace 103The gasification section of moving hearth 105. Dryer section, the gasification section of gasification furnace 103 sieges 105 can be adopted respectivelyWith individual independently air compartment 107 air feeds of 1-2, also can adopt respectively a 3-4 independently air compartment107 air feeds. Certainly, fire grate, drive unit and an air compartment 107 also can not corresponding setting, better tuneOn joint moving hearth 105, the bed of material moves and air distribution relation. Incinerator 104 can adopt 1-4 independentlyAir compartment 107 air feeds, burn rear lime-ash and get rid of from slag notch, enter next step treatment process.

Described gasification furnace 103, incinerator 104 are respectively the shape that arches upward, in order better to adapt to the peace in factoryDress space, the face arch of described gasification furnace 103 is straight structure, or, after the face arch of gasification furnace 103 isHold the structure that is inclined upwardly. Secondary is set respectively for air port 115 on the face arch of described gasification furnace 103, rear arch,The vault of described gasification furnace 103 arranges the first exhanst gas outlet 112, and the gasification flue gas in gasification furnace 103 is fromOne exhanst gas outlet 112 is got rid of, and gasification furnace 103 furnace cavities are compared with traditional incinerator, relativelyReduce; Forward and backward arch and moving hearth 105 relative positions diminish, and have reduced the space that incinerator takies,Also be easier to insulation, reduced the amount of leakage of heat, be conducive to rubbish and fully gasify. Described incinerator 104Vault an air compartment of the second exhanst gas outlet 113 and the below of gasification furnace 103 moving hearths 105 is set107 correspondences, the second exhanst gas outlet 113 connects by flue 116 with a corresponding air compartment 107,On described gasification furnace 103, incinerator 104, be respectively equipped with igniting combustion supporting hole 114;

Also comprise circulation air feed system 2, described circulation air feed system 2 comprises dust arrester 201, the first windMachine 202, the second blower fan 203, for the high-temperature flue gas of effectively incinerator 104 being discharged carries out dedusting,Preferably, described dust arrester 201 is cyclone separator or hot precipitator; Described the first blower fan 202For high-temperature blower, be beneficial under hot environment and work, described the second blower fan 203 is air blast. Described removingThe inlet end of dirt device 201 connects the house steward of the 4th manifold 210, the arm of described the 4th manifold 210 withAn air compartment 107 of the below of gasification furnace 103 moving hearths 105 connects, described the 4th manifold 210The 4th control valve 211 is set on arm, and the outlet side of described dust arrester 201 is by pipeline and the first blower fan202 inlet end connects, and the outlet side of described the first blower fan 202 connects the house steward of the first manifold 204, instituteThe arm of stating the first manifold 204 respectively with gasification furnace 103 face arch, rear arch on secondary connect for air port 115Logical, the first control valve 207 is set respectively, described the second blower fan on each arm of described the first manifold 204203 air inlet is communicated with atmosphere, and the gas outlet of described the second blower fan 203 connects the total of the second manifold 205Pipe, the arm of described the second manifold 205 respectively with flue 116 and incinerator 104 moving hearthsAn air compartment 107 of 105 belows is communicated with, and on each arm of described the second manifold 205, the second tune is set respectivelyJoint valve 208.

Air blast blasts air and regulates by the second control valve on corresponding pipeline for incinerator provides a windWind supply quantity, fully burns incinerator residue; Air blast blasts air and provides temperature adjustment for flue 116Air feed, regulates wind supply quantity by the second control valve on corresponding pipeline, makes flue 116 to gasification furnaceAn air compartment wind of preference temperature is provided, then, high-temperature blower extracts an air compartment of gasification furnaceInterior flue gas, by the blast of the 4th control valve adjusting flue gas on the 4th manifold arm, adjusts through temperature adjustmentPressure and cyclone separator are collected after flying dust, and the flue gas that forms certain pressure is supplied with the Secondary Air of gasification furnace, logicalThe first control valve of crossing on the corresponding arm of the first manifold regulates wind supply quantity, makes rubbish in gasification furnace produce gasification,The flue gas that contains a certain amount of synthesis gas, discharges from the first exhanst gas outlet, enters cyclone combustion chamber processing links,Cyclone combustion chamber provides high-temperature flue gas.

103 wind of gasification furnace are: the flue gas that incinerator 104 produces enters gasification through flue 116In an air compartment 107 of stove 103 moving hearth 105 below correspondences, then pass through on moving hearth 105A wind hole spray penetration rubbish, gasifies, and adjusts by the first control valve 207 on the each arm of correspondenceJoint wind supply quantity. Gasification furnace 103 Secondary Airs are: high-temperature blower extracts an air compartment 107 of gasification furnace 103Interior flue gas, by the blast of the 4th control valve adjusting flue gas on the 4th manifold arm, adjusts through temperature adjustmentPressure and cyclone separator are collected after flying dust, and the flue gas that forms certain pressure blasts gasification furnace 103 burner hearths, itsSpray-hole is arranged on gasification furnace 103 face arch and rear arch. On forward and backward arch, be provided with secondary for air port 115,Improve gasification efficiency, strengthen polymer substance in flue gas and decompose. The igniting combustion supporting having on gasification furnace rear archHole 114, the interior temperature of furnace lifting, baker and stable gasification furnace 103 is used. 104 wind of incinerator are: drumBlower fan blasts the air of certain pressure an air compartment 107 of stoker fired grate formula moving hearth 105 below correspondencesIn, then by a wind hole spray penetration residue on moving hearth 105, carry out residual burning, pass throughThe second control valve 208 on corresponding each arm regulates wind supply quantity.

Fig. 2 is the structural representation of cyclone combustion chamber 3. The upper end of described cyclone combustion chamber 3 is provided with burningIgniting combustion supporting hole, chamber 301, the lower end of cyclone combustion chamber 3 is provided with the taper slag notch that radius diminishes from top to bottom302, the top of described cyclone combustion chamber 3 circle wall arranges smoke inlet 303, described cyclone combustion chamber 3The bottom of circle wall arranges the 3rd exhanst gas outlet 304, in the circle wall of described cyclone combustion chamber 3, is evenly provided withSome combustion airs are for air port 305, and each combustion air is all positioned at smoke inlet 303, the 3rd flue gas for air port 305Between outlet 304. Described smoke inlet 303, the 3rd exhanst gas outlet 304 are positioned at cyclone combustion chamber 3 circumferenceThe opposition side of wall; Described the 3rd exhanst gas outlet 304 radially or tangentially arranges along cyclone combustion chamber 3 circle wall.Also comprise the 3rd manifold 206, the house steward of described the 3rd manifold 206 is communicated with the gas outlet of the second blower fan 203,Each arm of described the 3rd manifold 206 is communicated with for air port 305 with each combustion air respectively, the 3rd manifold 206Each arm on the 3rd control valve 209 is set respectively. The smoke inlet 303 of cyclone combustion chamber 3 and combustion-supportingAll being arranged in cyclone combustion chamber 3 circle wall for air port, can be the flue gas and sky in cyclone combustion chamber 3Gas incorporation time is longer, mix more even, more fully burning. The combustion-supporting air feed of cyclone combustion chamber 3Being air blast blasts the air of certain pressure combustion-supportingly to spray and enter cyclone combustion chamber 3, combustion-supporting air feed for air portApproach axis can be radially or tangentially; Carry out syngas combustion. Meanwhile, high-temperature blower extracts incinerator104 flue gas generation certain pressure blasts gasification furnace 103 stoker fired grate formula moving hearth 105 below correspondencesSecondary air chamber on air compartment 107 and the forward and backward arch of gasification furnace 103, in order to utilize high-temperature blower to extractDo not utilized remainder flue gas, preferably, described the first manifold 204 also have one with whirlwind combustionBurn the arm that chamber smoke inlet connects, this arm is provided with the 5th control valve 212. High-temperature blower extracts notUtilize remainder flue gas, then sprayed and enter cyclone combustion chamber 3 by cyclone combustion chamber 3 smoke inlets,Carry out syngas combustion, regulate wind supply quantity by the 5th control valve 212, this structure can reduce thermal lossesWith raising heat exchanger effectiveness, greatly improve the organic efficiency of heat, and can effectively reduce pollutantDischarge capacity.

A processing method for double-deck stoker fired grate formula refuse gasification CIU, the method according to the following stepsCarry out:

Steps A, close double-deck stoker fired grate formula refuse gasification incinerator 1 and the gate that atmosphere ventilates, openMoving double-deck stoker fired grate formula refuse gasification incinerator 1, drops into feed hopper 102, garbage pusher by garbage raw materialDevice 106 pusher back and forth, pushes feed hopper 102, gasification by the garbage raw material falling from feed hopper 102Windrow seal section 108 between stove 103, makes windrow seal section 108 form windrow sealing state, unnecessaryRubbish falls into the moving hearth 105 of gasification furnace 103, and the moving hearth 105 of gasification furnace 103 is worked, by rubbishRubbish is conveyed into the transition slag section 109 that falls, and residue pusher 110 pusher back and forth, by the transition slag section 109 that fallsOn rubbish push in incinerator 104, the moving hearth 105 of incinerator 104 conveying garbage of working, straightBe accumulated to required thickness to rubbish at the moving hearth 105 of gasification furnace 103, incinerator 104:0.6-0.8m,, when baker, the rubbish of piling up can be protected moving hearth 105, prevents scaling loss siege 105.Stop feeding intake to feed hopper 102, the moving hearth 105 of gasification furnace 103 and incinerator 104 quits work,Then, with start-up burner the igniting combustion supporting hole 114 by gasification furnace 103 and incinerator 104 respectively withThe burner hearth of gasification furnace 103 and incinerator 104 communicates, under the effect of start-up burner, to gasification furnace 103Carry out furnace lifting, baker with incinerator 104, treat that this process stabilization completes, make gasification furnace 103 and burnStove 104 burner hearths reach predetermined temperature 600-700 DEG C; The object of baker is in order to remove the Natural Water in liningAnd the crystallization water, in order to avoid in the time going into operation due to furnace temperature rise too fast, moisture content is a large amount of expand cause body of heater spalling,Bubbling or be out of shape even furnace wall and collapse, affects intensity and the service life of heating furnace furnace wall.

Step B, startup regulate circulation air feed system 2, regulate gasification furnace 103, incinerator 104 and followThe technological parameter of ring air feed system 2 (pusher speed, fire grate speed, wind-warm syndrome, blast and an air quantity,Negative pressure, thickness of feed layer etc. in secondary air temperature, blast and air quantity, furnace temperature, stove), feed intake to feed hopper 102,The moving hearth 105 of gasification furnace 103 conveying garbage of working, rubbish starts in the burner hearth of gasification furnace 103Burn, rubbish residue is piled up and is formed windrows sealings at transition slag section 109 places that fall, and makes gasification furnace 103Stove chamber inner combustion state temperature stabilization to 850 DEG C more than, the moving hearth 105 of incinerator 104 is worked defeatedRubbish residue after going out to burn.

Each technological parameter of step C, adjusting gasification furnace 103, incinerator 104 and circulation air feed system 2(pusher speed, fire grate speed, wind-warm syndrome, blast and air quantity, secondary air temperature, blast and an air quantity,Negative pressure, thickness of feed layer etc. in furnace temperature, stove), gasification furnace 103 gasifies to rubbish gradually, regulates simultaneouslyEach technological parameter of cyclone combustion chamber 3, gasification temperature is stabilized between 700-800 DEG C, makes gasification furnace 103The stable high-temperature flue gas producing containing 10%-20% synthesis gas, gasification furnace 103 vaporized state are stable carry out low temperature,Middle temperature or high-temperature gasification all can. More than making incinerator 104 fired state temperature stabilizations to 850 DEG C, high temperature cigaretteGas enters air compartment of gasification furnace from the second exhanst gas outlet correspondence, feeds gasification furnace, and cyclone combustion chamber 3More than the 3rd exhanst gas outlet 304 temperature stabilizations to 850 DEG C, realize rubbish continuous gasification burning disposal.

Step D, need maintenance or when blowing out, stop feeding intake, regulating gasification furnace 103, incinerator 104, revolveThe technological parameter of wind combustion chamber 3 and circulation air feed system 2, makes gasification furnace 103 return to gradually burningState, after rubbish and rubbish residue burn, close double-deck stoker fired grate formula refuse gasification incinerator 1 withAnd circulation air feed system 2.

Finally explanation, above preferred embodiment only in order to the technical solution of the utility model to be described but notRestriction, although the utility model is described in detail by above preferred embodiment, thisThose skilled in the art should be appreciated that and can make various changes to it in the form and details,And do not depart from the utility model claims limited range.

Claims (8)

1. a double-deck stoker fired grate formula refuse gasification CIU, comprises double-deck refuse gasification incinerator,It is characterized in that: described double-deck refuse gasification incinerator comprises grate, on described grate, complies with along feedstock directionInferior feed hopper, the gasification furnace of being provided with, is also provided with incinerator on described grate, described incinerator is positioned at gasificationUnder stove, the feedstock direction of incinerator is contrary with the feedstock direction of gasification furnace, described feed hopper dischargingMouthful with gasification furnace charging aperture between grate part be provided with windrow seal section, described gasification furnace discharging opening andGrate part between the charging aperture of incinerator is provided with the transition slag section that falls, and the transition slag section that falls can form windrowSealing state, described grate is provided with garbage pusher device, residue pusher, and described garbage pusher device is positioned atThe below of feed hopper, cutting somebody's hair of garbage pusher device stretched in windrow seal section, for by the rubbish in feed hopperRubbish pushes in gasification furnace, described residue pusher between gasification furnace and incinerator, residue pusherCut somebody's hair and stretch into transition and fall in slag section, for the rubbish residue falling in gasification furnace is pushed in incinerator;

Described gasification furnace, incinerator comprise respectively furnace shell, moving hearth, the forward and backward side of described gasification furnaceRespectively by fall slag section sealing of windrow seal section, transition, described transition fall slag section isolation gasification furnace, burnStove, makes gasification furnace, incinerator separate;

The below of the below of described gasification furnace moving hearth and described incinerator moving hearth be respectively equipped with toA few independent air compartment arranging, described gasification furnace, incinerator are respectively the shape that arches upward, described gasificationSecondary is set respectively for air port on the face arch of stove, rear arch, the vault of described gasification furnace arranges the first flue gas and goes outMouthful, the vault of described incinerator arranges a wind of the below of the second exhanst gas outlet and gasification furnace moving hearthChamber correspondence, the second exhanst gas outlet connects by flue with a corresponding air compartment, described gasification furnace,On incinerator, be respectively equipped with igniting combustion supporting hole;

Also comprise circulation air feed system, described circulation air feed system comprises dust arrester, the first blower fan,Two blower fans, the inlet end of described dust arrester connects the house steward of the 4th manifold, the arm of described the 4th manifoldBe connected with an air compartment of the below of gasification furnace moving hearth, on the arm of described the 4th manifold, arrange the 4thControl valve, the outlet side of described dust arrester is connected with the inlet end of the first blower fan by pipeline, and describedThe outlet side of one blower fan connects the house steward of the first manifold, the arm of described the first manifold respectively with gasification furnace beforeSecondary on arch, rear arch is communicated with for air port, on each arm of described the first manifold, the first adjusting is set respectivelyValve, the air inlet of described the second blower fan is communicated with atmosphere, and the gas outlet of described the second blower fan connects the second discriminationThe house steward of pipe, the arm of described the second manifold is respectively with flue and incinerator moving hearth belowOne time air compartment is communicated with, and on each arm of described the second manifold, the second control valve is set respectively.

2. the double-deck stoker fired grate formula of one according to claim 1 refuse gasification CIU, its spyLevy and be: also comprise the cyclone combustion chamber for second-time burning, the upper end of described cyclone combustion chamber is provided with combustionBurn igniting combustion supporting hole, chamber, the lower end of cyclone combustion chamber is provided with the taper slag notch that radius diminishes from top to bottom,The top of described cyclone combustion chamber circle wall arranges smoke inlet, the bottom of described cyclone combustion chamber circle wallThe 3rd exhanst gas outlet is set, in the circle wall of described cyclone combustion chamber, is evenly provided with some combustion airs for air port,Each combustion air supplies air port all between smoke inlet, the 3rd exhanst gas outlet.

3. the double-deck stoker fired grate formula of one according to claim 2 refuse gasification CIU, its spyLevy and be: described smoke inlet, the 3rd exhanst gas outlet are positioned at the opposition side of cyclone combustion chamber circle wall; InstituteStating the 3rd exhanst gas outlet radially or tangentially arranges along cyclone combustion chamber circle wall.

4. according to the double-deck stoker fired grate formula of one described in claim 2 or 3 refuse gasification CIU,It is characterized in that: also comprise the 3rd manifold, the gas outlet of the house steward of described the 3rd manifold and the second blower fan connectsLogical, each arm of described the 3rd manifold is communicated with for air port with each combustion air respectively, each arm of the 3rd manifoldUpper the 3rd control valve that arranges respectively.

5. according to the double-deck stoker fired grate formula of one described in claim 2 or 3 refuse gasification CIU,It is characterized in that: described the first manifold also has an arm being connected with cyclone combustion chamber smoke inlet,This arm is provided with the 5th control valve.

6. the double-deck stoker fired grate formula of one according to claim 1 refuse gasification CIU, its spyLevy and be: described dust arrester is cyclone separator or hot precipitator; Described the first blower fan is high temperatureBlower fan, described the second blower fan is air blast.

7. the double-deck stoker fired grate formula of one according to claim 1 refuse gasification CIU, its spyLevy and be: described transition falls in slag section and is provided with isolating door to be opened/closed, and described isolating door will be for gasifyingStove, incinerator cut off.

8. the double-deck stoker fired grate formula of one according to claim 1 refuse gasification CIU, its spyLevy and be: the face arch of described gasification furnace is straight structure, or the face arch of gasification furnace is that rear end is to updipBiassed fabric.