CN106287734B - Stoker fired grate formula refuse gasification incineration system and synthesis gas parameter feedback burner - Google Patents

Abstract

The invention discloses a kind of stoker fired grate formula refuse gasification incineration system and synthesis gas parameter feedback burner, the inner cavity of burner includes the burning gallery set gradually from top to bottom, V bores passage, flying dust expansion chamber, taper slag notch and the ring smoke passage set around V cone passages, annular vent flue, V cone passages are up big and down small, the diameter of flying dust expansion chamber is more than the diameter of V cone passages upper end, the breathing area of the ring smoke passage tapers into from top to bottom, the lower end of ring smoke passage is connected with flying dust expansion chamber, the lower end of annular vent flue is connected with the upper end of ring smoke passage, taper slag notch is up big and down small.Using the burner of this refuse gasification synthesis gas parameter feedback, there is higher efficiency of dust collection and efficiency of combustion, higher heat recovery efficiency can realize controlled burning and controllable collection, reduce thermal losses, and can efficiently reduce pollutant emission.

Description

Stoker fired grate formula refuse gasification incineration system and synthesis gas parameter feedback burner

Technical field

The invention belongs to solid waste incineration processing technology fields more particularly to a kind of stoker fired grate formula refuse gasification to burn Burning system and synthesis gas parameter feedback burner.

Background technology

Existing technology of garbage disposal mainly has burning, sanitary landfills, compost, waste recovery etc..It is conventional in garbage disposal In technology, burning disposal is apparent with reduced training, and innoxious thorough, occupation of land amount is small, and waste heat energy is utilized, and secondary pollution is few The advantages that, meet the strategic requirement of China's sustainable development.But with the continuous improvement both at home and abroad to environmental requirement, how to enhance It is particularly important to the control of secondary pollution.Therefore, refuse pyrolysis gasification burning technology is gradually shifted onto the road of industrial applications On, especially for domestic rubbish primarily now using all kinds of incineration technologies, gasification burning technology widely industrialize by The technological innovation of domestic garbage disposal industry is brought to regenerate.

For many years, scientific research of the China to the gasification burnings technology such as biomass, rubbish, be in progress a lot of, the base in laboratory There are many plinth research, also have application study, such as：Rotary kiln type, vertical and fluidized bed type destructive gasifying or temperature gasification and high melting skill Art etc..But Technique Popularizing is using upper still there are certain restrictions, and raw material type, garbage treatment quantity, secondary pollution controls and economy Benefit etc. is principal element.

In existing burning process and equipment, fire grate type incinerator is various informative, and application accounts for whole world waste incineration More than the 80% of the total market size wherein having in furnace body using mechanical backstepping fire grate, forwards fire grate or combined fire grate, is also adopted With fire grates such as chain-plate type and drum-types.

In conclusion typical incinerator, respectively has its own advantage, but needs what is solved in China's practical application Problem and shortage：

1. for characteristics such as China's house refuse water content height, complicated components, the technology of moving hearth uses, to rubbish Conveying capacity needs emphasis to consider.

2. with being on the increase for refuse production, sanitary fill such as mountain, garbage treatment quantity must be effectively improved, It can just meet the market requirement.

3. in face of stringent pollutant emission requirement, secondary pollution control is the key problem for technically needing to solve.

4. in order to effectively increase economic efficiency, in rubbish heat treatment process, the organic efficiency of heat needs to improve.It is existing Rubbish heat treatment technics generally use boiler generate steam shift steam turbine power generation onto, entire transition heat efficiency losses are larger, place Identical quantity of refuse is managed, opposite reduction thermal losses and raising heat exchanger effectiveness can improve the thermal efficiency.

5. conventional garbage is burned in mode and boiler applications, high-temperature dust removal is less or does not have, and some efficiency is also not high enough, high Effect dedusting and burning are had both less, and the easy dust stratification of boiler declines thermal conversion efficiency, and so as to lower power production, maintenance period is short Deng.

For example following two patents of invention of existing incinerator：Multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) an open question and in two-stage garbage incinerator (ZL201010268376.2)：At rubbish heat It manages model comparision to fall behind, simply dry-burns-burn, solid combustion discharges the process of heat；Thermal chemical reaction is to aoxidize in stove Based on reaction, reduction reaction auxiliary is also easy to produce secondary pollution；When rubbish burns in stove, oxygen quotient excessively is big, First air, two Secondary wind infeed amount is big, and dust content is higher in flue gas, is affected to heat reclaiming system and smoke processing system, easily product Ash, exhaust gas volumn is larger, reduces thermal conversion efficiency；The gasification furnace and incinerator not being separately provided, can only handle rubbish by several times, It can not realize large-scale rubbish continuous gasification burning disposal, garbage treatment quantity is smaller.

The content of the invention

It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of stoker fired grate formula refuse gasification incineration system With synthesis gas parameter feedback burner, burner efficiency of dust collection, efficiency of combustion are higher, can reduce thermal losses, heat Organic efficiency is higher, and can efficiently reduce pollutant emission.

The object of the present invention is achieved like this：

A kind of synthesis gas parameter feedback burner sets combustion chamber ignition combustion-supporting hole on the top plate of the burner, The tangentially-arranged burner entrance of upper end edge of the burner side wall, the inner cavity of the burner include from top to bottom according to Burning gallery, V cones passage, flying dust expansion chamber, taper slag notch and the ring smoke around V cone passage settings of secondary setting lead to Road, annular vent flue are separated between the ring smoke passage, annular vent flue and V cone passages by annular air guide pier, Several combustion airs are set on the side wall of the burning gallery, and for air port, each combustion air is respectively positioned on burner entrance for air port Lower section, V cone passage is up big and down small, and the diameter of the flying dust expansion chamber is more than the diameter of V cone passages upper end, the annular The breathing area of exhaust gases passes tapers into from top to bottom, and the lower end of ring smoke passage is connected with flying dust expansion chamber, the ring The lower end of shape exhaust uptake is connected with the upper end of ring smoke passage, and tangential outlet flue and annular are set on the side wall of burner Exhaust uptake connects, and the taper slag notch is up big and down small.

Preferably, the top of the ring smoke passage it is circumferentially arranged have it is several it is up-narrow and down-wide divide gas pier, adjacent point Narrow wide flue gas ring road under being formed between gas pier.

Preferably, burner entrance connection is for feeding the high-temperature flue of high-temperature flue gas, on the high-temperature flue Smoke movement parameter acquisition unit is set, and the burner entrance sets variable synthesis gas inlet, the smoke movement ginseng Counting collection unit includes sensing reception and signal processing unit, cooling unit, heat-insulated pedestal and sensing element, the heat-insulated pedestal It is fixed on the tube wall of high-temperature flue, the sensing element is fixed on heat-insulated pedestal along perpendicular to the direction of high-temperature flue axis On, the measurement end of sensing element is stretched into high-temperature flue, and the sensing receives and signal processing unit is fixed on sensing element position In one end outside high-temperature flue, sensing receives and signal processing unit measures flue gas stream in high-temperature flue by sensing element Amount, flow velocity, the cooling unit are enclosed in one that sensing element is located between heat-insulated pedestal, sensing reception and signal processing unit Duan Shang, the variable synthesis gas inlet include executing agency, fire resisting bore adjustment seat, one end of the fire resisting bore adjustment seat It stretches into burner entrance, other end connection executing agency further includes the first flue gas composition detection device and control unit, institute The first flue gas composition detection device is stated for detecting the flue gas composition in high-temperature flue on high-temperature flue, the control is single Member is received respectively with the first flue gas composition detection device, sensing and signal processing unit, executing agency are electrically connected, at control unit Smoke movement parameter, synthesis flue gas composition parameter are managed, and passes through the flexible of actuating mechanism controls fire resisting bore adjustment seat, and then is controlled Make the pore size of variable synthesis gas inlet.

Preferably, it is close to further include fireproof flue, heat-insulating and sealing, compression thermal insulation layer, high temperature for the variable synthesis gas inlet Envelope, the cross section of the fireproof flue is U-shaped, and the opening of fireproof flue is sealed by compressing thermal insulation layer, the fire resisting bore tune Section seat is stretched into through thermal insulation layer is compressed in fireproof flue, and the width that the fire resisting bore adjustment seat is located at one end in fireproof flue is big It is located at the width of one end outside fireproof flue in fire resisting bore adjustment seat, is set between fire resisting bore adjustment seat and fireproof flue side wall Elevated-temperature seal sets heat-insulating and sealing between fire resisting bore adjustment seat and compression thermal insulation layer.

A kind of stoker fired grate formula refuse gasification incineration system, including incinerator, the incinerator includes grate, And feed hopper, gasification furnace and the incinerator set gradually on grate along feedstock direction, the rear of gasification furnace is gasification furnace Slag mouth, incinerator are located at the front lower place of gasification furnace slag mouth, and the rear of incinerator is the slag notch of incinerator, on the grate Equipped with garbage pusher device, the garbage pusher device is located at the lower section of feed hopper, for the rubbish in feed hopper to be pushed into gasification furnace It is interior, the lower section of gasification furnace moving hearth and incinerator moving hearth be respectively arranged below with it is at least one it is independently arranged once Air compartment is equipped with windrow seal section, is stayed on the grate part between the gasification furnace and incinerator between the feed hopper, gasification furnace There is transition slag section, the transition slag section is provided with residue pusher, for the rubbish residue push-in that will be fallen in gasification furnace In incinerator；

The gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of the gasification furnace passes through heap respectively Expect seal section, the sealing of transition slag section, the transition slag section isolation gasification furnace, incinerator make gasification furnace, incinerator mutually only It is vertical；

The gasification furnace, incinerator set secondary air feed respectively respectively in arching upward shape on the face arch of the gasification furnace, rear arch Mouthful, the vault of the gasification furnace sets the first exhanst gas outlet, and the vault of the incinerator sets the second exhanst gas outlet, the gasification Igniting combustion supporting hole is respectively equipped on stove, incinerator；

Burner is further included, the burner entrance is connected with the first exhanst gas outlet；

Cycling air feed system is further included, the Xun Huan air feed system includes dust-extraction unit, the first wind turbine, the second wind turbine, institute The inlet end for stating dust-extraction unit is connected by pipeline with the second exhanst gas outlet, and the outlet side of the dust-extraction unit passes through pipeline and The inlet end connection of one wind turbine, the outlet side of first wind turbine connect the manifold of the first manifold, the branch pipe of first manifold It is connected respectively with the secondary confession air port on each air compartment of the lower section of gasification furnace moving hearth and gasification trimmer arch, rear arch, First regulating valve is set respectively on each branch pipe of first manifold, and the air inlet and atmosphere of second wind turbine are described The gas outlet of second wind turbine connects the manifold of the second manifold, the branch pipe of second manifold respectively with below incinerator moving hearth Each air compartment and dust-extraction unit inlet end, outlet side connection, the is set on each branch pipe of second manifold respectively Two regulating valves further include the 3rd manifold, and the manifold of the 3rd manifold is connected with the gas outlet of the second wind turbine, the 3rd manifold Each branch pipe connected respectively with each combustion air for air port, the 3rd regulating valve is set respectively on each branch pipe of the 3rd manifold.

Preferably, first manifold also have a branch pipe being connected with burner entrance, the branch pipe equipped with pair The regulating valve answered, the remainder flue gas not utilized that the first wind turbine extracts are injected into burning dress by burner entrance It puts, and passes through corresponding adjusting valve regulation volume of air supply.

Preferably, the branch pipe that first manifold is connected with burner entrance is equipped with flue gas amount detecting device, second Flue gas composition detection device, the flue gas amount detecting device, the second flue gas composition detection device and the 3rd regulating valve respectively with Control unit be electrically connected, described control unit handle the second flue gas composition detection device acquisition synthesis flue gas composition parameter and The synthesis flue gas flow parameter of flue gas amount detecting device acquisition, and pass through the 3rd regulating valve control combustion air volume of air supply.

In order to effectively carry out dedusting to the high-temperature flue gas of incinerator discharge, it is preferable that the dust-extraction unit is whirlwind point From device or hot precipitator；First wind turbine is high-temperature blower, and beneficial to working in high temperature environments, second wind turbine is Air blower.

Wind is altered between gasification furnace, incinerator in order to prevent, it is preferable that be provided in the transition slag section it is to be opened/closed every From door, the isolating door is used to separate gasification furnace, incinerator.

In order to preferably adapt to the installation space in factory, it is preferable that the face arch of the gasification furnace for flat construction or Person, the face arch of gasification furnace are inclined upwardly structure for rear end.

By adopting the above-described technical solution, the present invention has the advantages that：

V cone passages are up big and down small, and volume reduces, pressure increase, and flow velocity increase accelerates rotation to inject flying dust expansion chamber, body Product charges into increase, and pressure reduces, and flow velocity reduces, the effect rapid drawdown of cyclone centrifugal power, flying dust sedimentation, and dust removing effects are further；Ring Shape exhaust gases passes flue gas size is gradually reduced, and into trapezoidal flue gas ring road, reduces the sucking-off of flying dust, dedusting is more favourable；Due to ring The pyramidal structure of shape exhaust gases passes, smaller closer to discharge area, flue gas ring road wide at the top and narrow at the bottom makes in ring smoke passage High-temperature flue gas flow velocity is uniform.The dedusting of burning gallery section cyclonic separation, back taper passage, flying dust expansion chamber, ring smoke passage, ring road Combination is set to improve efficiency of dust collection, flue gas is synthesized during dedusting and obtains being sufficiently mixed burning, improves efficiency of combustion.

Control unit processing smoke movement parameter (speed, flow, fluid force etc.), synthesis flue gas composition and high-temperature blower go out Mouth arrives the flue gas composition and flow of burner, and control executing agency adjusts gas inlet aperture, while controls combustion-supporting air quantity, Realize the adjusting of the fluctuations such as synthesis exhaust gas volumn and the component that unstability is brought in waste component and heat treatment process, so as to Smoke inlet initial velocity and combustion-supporting oxygen-supplying amount are controlled, to achieve the purpose that high-effective dust-removing and burning.Control unit control is variable Synthesize gas inlet executing agency：Purely mechanic transmission, mechanical parameter enlarger, then executing agency is driven, execution efficiency higher.

Air blower blasts air and provides First air for incinerator and provide temperature adjustment air feed for cyclone separator, high-temperature blower, Valve regulation volume of air supply is adjusted by the second of respective tube road, incinerator residue is made fully to burn；Then, high-temperature blower extracts combustion The flue gas of cinder stove after temperature adjustment and cyclone collection flying dust, forms the flue gas supply gasification furnace of certain pressure once Wind and Secondary Air adjust valve regulation volume of air supply by the first of respective tube road, rubbish in gasification furnace are made to generate gasification, contains one The flue gas of quantitative synthesis gas, is discharged from the first exhanst gas outlet, and into burner processing links, burner provides high temperature cigarette Gas.Present inventive concept is novel, and garbage treatment quantity is big, and the rubbish bed of material undergoes burning for drying, gasification and residue on stoker fired grate Stage adapts to the characteristics such as China's house refuse water content height, complicated component, improves the energy conversion effect in garbage processing procedure Pollutant discharge amount in rate and reduction flue gas, effectively prevents secondary pollution, and can realize that large-scale rubbish continuous gasification is burnt Burning processing ensures refuse gasification burning effect and lime-ash clinker ignition loss, opposite to reduce thermal losses and improve heat exchanger effectiveness, improves The thermal efficiency.

Gasification furnace, incinerator are provided separately, and the vault of gasification furnace sets the first exhanst gas outlet, and the vault of incinerator sets the Two exhanst gas outlets handle flue gas beneficial to the difference according to flue gas quality, while are conducive to flue gas ash removal respectively, can provide more The flue gas of high-quality, makes the utilization rate higher of flue gas, and the waste residue of discharge is less.

Description of the drawings

Fig. 1 is the structure diagram of burner；

Fig. 2 is the structure diagram of smoke movement parameter acquisition unit；

Fig. 3 is the A-A schematic cross-sectional views of Fig. 1；

Fig. 4 is the B-B schematic cross-sectional views of Fig. 1；

Fig. 5 is the C-C schematic cross-sectional views of Fig. 4；

Fig. 6 is the structure diagram of stoker fired grate formula refuse gasification incineration system.

Reference numeral

1 is incinerator, and 101 be grate, and 102 be feed hopper, and 103 be gasification furnace, and 104 be incinerator, and 105 be stove Bed, 106 be garbage pusher device, and 107 be an air compartment, and 108 be windrow seal section, and 109 be transition slag section, and 110 push away for residue Glassware, 111 be isolating door, and 112 be the first exhanst gas outlet, and 113 be the second exhanst gas outlet, and 114 be igniting combustion supporting hole, and 115 be two Secondary to supply air port, 116 be slag notch, and 117 be slag mouth；

2 be Xun Huan air feed system, and 201 be dust-extraction unit, and 202 be the first wind turbine, and 203 be the second wind turbine, and 204 be the first discrimination Pipe, 205 be the second manifold, and 206 be the 3rd manifold, and 207 be the first regulating valve, and 208 be the second regulating valve, and 209 are adjusted for the 3rd Valve；

3 be burner, and 301 be combustion chamber ignition combustion-supporting hole, and 302 be taper slag notch, and 303 be burner entrance, 304 be tangential outlet flue, and 305 supply air port for combustion air, and 306 be burning gallery, and 307 bore passage for V, and 308 be flying dust expansion chamber, 309 be ring smoke passage, and 310 be annular vent flue, and 311 be annular air guide pier, and 312 is divide gas pier, and 313 be flue gas circle Road, 314 be high-temperature flue, and 315 receive and signal processing unit for sensing, and 316 be cooling unit, and 317 be heat-insulated pedestal, 318 It is executing agency for sensing element, 319,320 be fire resisting bore adjustment seat, and 321 be the first flue gas composition detection device, and 322 are Control unit, 323 be fireproof flue, and 324 be heat-insulating and sealing, and 325 is compress thermal insulation layer, and 326 be elevated-temperature seal, and 327 be flue gas Amount detecting device, 328 be the second flue gas composition detection device.

Specific embodiment

Referring to Fig. 1 to Fig. 5, for a kind of preferred embodiment of synthesis gas parameter feedback burner, the burner 3 Top plate on combustion chamber ignition combustion-supporting hole 301, the tangentially-arranged burner entrance of upper end edge of 3 side wall of burner are set 303, the inner cavity of the burner 3 includes the burning gallery 306 set gradually from top to bottom, V cones passage 307, flying dust sedimentation Room 308, taper slag notch 302 and ring smoke passage 309, the annular vent flue 310 set around V cone passages 307, institute It states and is separated between ring smoke passage 309, annular vent flue 310 and V cone passages 307 by annular air guide pier 311, the combustion Several combustion airs are set on the side wall in burn through road 306, and for air port 305, each combustion air is respectively positioned on burner for air port 305 The lower section of entrance 303, the V cones passage 307 is up big and down small, and the diameter of the flying dust expansion chamber 308 is more than on V cone passages 307 The diameter at end, the breathing area of the ring smoke passage 309 taper into from top to bottom, the lower end of ring smoke passage 309 It is connected with flying dust expansion chamber 308, the lower end of the annular vent flue 310 is connected with the upper end of ring smoke passage 309, described The top of ring smoke passage 309 is circumferentially arranged have it is several it is up-narrow and down-wide divide gas pier 312, shape between adjacent point of gas pier 312 The narrow wide flue gas ring road 313 under.Tangential outlet flue 304 is set to connect with annular vent flue 310 on the side wall of burner 3 Logical, the taper slag notch 302 is up big and down small.

The burner entrance 303 connects to feed the high-temperature flue 314 of high-temperature flue gas, the high-temperature flue 314 Upper setting smoke movement parameter acquisition unit, the burner entrance 303 set variable synthesis gas inlet, the flue gas fortune Dynamic parameter acquisition unit includes sensing reception and signal processing unit 315, cooling unit 316, heat-insulated pedestal 317 and sensing element 318, the heat-insulated pedestal 317 is fixed on the tube wall of high-temperature flue 314, and the sensing element 318 is along perpendicular to high-temperature flue The direction of 314 axis is fixed on heat-insulated pedestal 317, and the measurement end of sensing element 318 is stretched into high-temperature flue 314, the sense It should receive and signal processing unit 315 is fixed on one end that sensing element 318 is located at outside high-temperature flue 314, sensing receives and letter Number processing unit 315 measures flue gas flow, flow velocity in high-temperature flue 314, the cooling unit 316 by sensing element 318 Be enclosed in sensing element 318 be located at heat-insulated pedestal 317, sensing receive and signal processing unit 315 between one section on, it is described every Hot radical seat 317, cooling unit 316 prevent the heat of high-temperature flue 314 from conducting to sensing reception and signal processing unit 315.Institute Stating variable synthesis gas inlet includes executing agency 319, fire resisting bore adjustment seat 320, and gas can be used in the executing agency 319 Cylinder, oil cylinder etc..One end of the fire resisting bore adjustment seat 320 is stretched into burner entrance 303, other end connection executing agency 319, the first flue gas composition detection device 321 and control unit 322 are further included, the first flue gas composition detection device 321 is pacified For detecting flue gas composition in high-temperature flue 314 on high-temperature flue 314, described control unit 322 respectively with the first cigarette Gas component detection device 321, sensing receive and signal processing unit 315, executing agency 319 are electrically connected, and control unit 322 is handled Smoke movement parameter, synthesis flue gas composition parameter, and pass through executing agency 319 and control the flexible of fire resisting bore adjustment seat 320, into And control the pore size of variable synthesis gas inlet.

In the present embodiment, it is heat-insulated that the variable synthesis gas inlet further includes fireproof flue 323, heat-insulating and sealing 324, compression Layer 325, elevated-temperature seal 326, the fireproof flue 323, elevated-temperature seal 326 can be used common heat-resisting material and make, it is described every Heat seal 324, compression thermal insulation layer 325 can be used common heat-barrier material and make.The cross section of the fireproof flue 323 is U-shaped, resistance to The opening of fiery flue 323 is sealed by compressing thermal insulation layer 325, and the fire resisting bore adjustment seat 320 is stretched through thermal insulation layer 325 is compressed Enter in fireproof flue 323, the width that the fire resisting bore adjustment seat 320 is located at one end in fireproof flue 323 is more than fire resisting bore Adjustment seat 320 is located at the width of 323 outer one end of fireproof flue, is set between 323 side wall of fire resisting bore adjustment seat 320 and fireproof flue Elevated-temperature seal 326 is put, heat-insulating and sealing 324 is set between fire resisting bore adjustment seat 320 and compression thermal insulation layer 325.

It is a kind of preferred embodiment of stoker fired grate formula refuse gasification incineration system, including incinerator referring to Fig. 6 1, the incinerator 1 includes grate 101 and the feed hopper 102, the gas that are set gradually on grate 101 along feedstock direction Change stove 103 and incinerator 104, the rear of incinerator 104 is the slag notch of incinerator 104, and gasification furnace 103 is mainly to rubbish Carbon-containing part gasifies, and discharges flammable gasification flue gas and rubbish residue, and incinerator 104 is substantially carried out at the burning of carbon residue Reason, and discharge innoxious lime-ash.The mechanical kiln that the siege 105 of gasification furnace 103 and incinerator 104 is independently driven using segmentation Row's formula moving hearth 105, the fire grate of stoker fired grate formula moving hearth 105 is by weight before and after moving grate plate and fixed grate plate Folded, spaced to collect, adjacent multigroup moving grate plate is connected by pull rod, is driven using a set of driving device.Machine Tool grate-type 105 carrier as conveying garbage of moving hearth, embodiments thereof can be all types of moving hearths 105, such as chain Board-like, drum-type, multisection type fire grate system etc..

The grate 101 is equipped with garbage pusher device 106, and the garbage pusher device 106 is located at the lower section of feed hopper 102, For the rubbish in feed hopper 102 to be pushed into gasification furnace 103, the lower section of 103 moving hearth 105 of gasification furnace and incinerator 104 moving hearths 105 are respectively arranged below with an at least one independently arranged air compartment 107, in the present embodiment, with gasification furnace The 107 corresponding fire grate of an air compartment of 103 first halfs, driving device, as the dryer section of 103 siege 105 of gasification furnace, with gasification The latter half of 107 corresponding fire grate of an air compartment of stove 103, gasification section of the driving device as 103 siege 105 of gasification furnace.Gasification 1-2 independent 107 air feeds of air compartment can be respectively adopted in dryer section, the gasification section of 103 siege 105 of stove, can also distinguish Using 3-4 independent 107 air feeds of air compartment.Certainly, fire grate, driving device and an air compartment 107 can not be also correspondingly arranged, Preferably adjust bed of material movement and air distribution relation on moving hearth 105.1-4 independent First airs may be employed in incinerator 104 107 air feed of room burns rear lime-ash and is excluded from slag notch, into next step treatment process.

Windrow seal section 108 is equipped between the feed hopper 102, gasification furnace 103,106 work of garbage pusher device into locating in place In in windrow seal section 108, garbage raw material is put into from feed hopper 102 and falls, and garbage pusher device 106 retreats, then promotes, reciprocal more Secondary pusher forms windrow in windrow seal section 108, and 103 entrance of gasification furnace is made to be in windrow sealing state, and enhancing gasification furnace 103 is close Effect is sealed, solves garbage pusher device 106 and 102 easy leakage problem of feed hopper.When needing the complete prepurging to dispose all rubbish, The forward impelling half stroke again of garbage pusher device 106, rubbish is pushed completely into gasification furnace 103, loses 103 entrance of gasification furnace Windrow sealing effect.Transition slag section 109, institute are left on 101 part of grate between the gasification furnace 103 and incinerator 104 It states transition slag section 109 and is provided with residue pusher 110, the rubbish residue for will be fallen in gasification furnace 103 is pushed into incinerator In 104, transition slag section 109 can be at windrow sealing state when accumulating rubbish residue, enhance 103 sealing effect of gasification furnace, Solve the problems, such as string wind between gasification furnace 103, incinerator 104.In the present embodiment, being provided in the transition slag section 109 can The isolating door 111 of opening and closing, the isolating door 111 are used to separate gasification furnace 103, incinerator 104.At furnace lifting initial stage or need to control When altering wind between gasification furnace 103 and incinerator processed, isolating door 111 is closed, stacking a certain amount of residue when slag section forms windrow After sealing, isolating door 111 can be kept to open, coordinate to use with the residue pusher 110 that lower section is set, to realize that rubbish is continuous Gasification burning processing.

Respectively in the shape that arches upward, the face arch of the gasification furnace 103 is for the upper end of the gasification furnace 103, the upper end of incinerator 104 Flat construction, alternatively, the face arch of gasification furnace 103 is inclined upwardly structure for rear end.The vault of the gasification furnace 103 sets the first cigarette Gas outlet 112, the vault of the incinerator 104 set the second exhanst gas outlet 113, and 103 upper end of gasification furnace arches upward, burns Igniting combustion supporting hole 114 is respectively equipped on the arching upward of 104 upper end of stove.Flue gas gasify from the first exhanst gas outlet 112, the second exhanst gas outlet 113 exclude, and further include burner 3, the burner entrance is connected with the first exhanst gas outlet.103 furnace cavity of gasification furnace It is relatively reduced compared with traditional waste incinerator；Forward and backward arch becomes smaller with 105 relative position of moving hearth, reduces incinerator The space occupied is also easier to keep the temperature, and reduces the amount of leakage of heat, is conducive to rubbish and fully gasifies.The gasification furnace 103 It is set respectively on face arch, rear arch secondary for air port 115.

Xun Huan air feed system 2 is further included, the Xun Huan air feed system 2 includes dust-extraction unit 201, the first wind turbine 202, second Wind turbine 203, the dust-extraction unit 201 is cyclone separator or hot precipitator, in the present embodiment, the dust-extraction unit 201 For cyclone separator.First wind turbine 202 is high-temperature blower, and second wind turbine 203 is air blower.The dust-extraction unit 201 inlet end is connected by pipeline with the second exhanst gas outlet 113, and the outlet side of the dust-extraction unit 201 passes through pipeline and The inlet end connection of one wind turbine 202, the outlet side of first wind turbine 202 connect the manifold of the first manifold 204, first discrimination The branch pipe of pipe 204 respectively with each air compartment 107 and 103 face arch of gasification furnace of the lower section of 103 moving hearth 105 of gasification furnace, Secondary confession air port 115 on rear arch connects, and sets the first regulating valve 207 on each branch pipe of first manifold 204 respectively, gasifies 103 First air of stove is that the flue gas generation certain pressure of high-temperature blower extraction incinerator 104 blasts the shifting of 103 stoker fired grate formula of gasification furnace In the corresponding air compartment 107 in dynamic 105 lower section of siege, then by an air holes spray penetration rubbish on moving hearth 105, into Promoting the circulation of qi adjusts volume of air supply by the first regulating valve 207 on each branch pipe of correspondence.103 Secondary Air of gasification furnace is that high-temperature blower is taken out The flue gas of incinerator 104 is taken to generate certain pressure and blasts 103 burner hearth of gasification furnace, spray-hole be arranged on 103 face arch of gasification furnace and On rear arch.Secondary confession air port 115 is provided on forward and backward arch, improves gasification efficiency, enhances polymer substance in flue gas and decomposes.Afterwards It is provided with igniting combustion supporting hole 114 on arch, furnace lifting, baker and stablizes temperature in gasification furnace 103 and use, pass through the on each branch pipe of correspondence One regulating valve 207 adjusts volume of air supply.The air inlet and atmosphere of second wind turbine 203, the air that the second wind turbine 203 blasts Can be cold wind or the hot wind after heating.The gas outlet of second wind turbine 203 connects the manifold of the second manifold 205, institute State each air compartment 107 and dust-extraction unit of the branch pipe of the second manifold 205 respectively with 104 moving hearth of incinerator, 105 lower section 201 inlet end, outlet side connection set the second regulating valve 208 on each branch pipe of second manifold 205 respectively.Incinerator 104 First airs are that the air of certain pressure is blasted the corresponding air compartment in 105 lower section of stoker fired grate formula moving hearth by air blower In 107, then by an air holes spray penetration residue on moving hearth 105, residual burning is carried out, by each branch pipe of correspondence The first regulating valve 207 adjust volume of air supply.The inlet end of dust-extraction unit 201, the air inlet of outlet side be temperature adjustment air feed, temperature adjustment air feed To be air blower by the air of certain pressure, which blast incinerator 104, exports (i.e. cyclone inlet) and carries out temperature adjustment, meanwhile, whirlwind Separator outlet (i.e. high-temperature blower entrance) blasts further temperature adjustment, is adjusted by the first regulating valve 207 on each branch pipe of correspondence Volume of air supply.

The 3rd manifold 206 is further included, the manifold of the 3rd manifold 206 is connected with the gas outlet of the second wind turbine 203, described Each branch pipe of 3rd manifold 206 connects respectively with each combustion air for air port 305, is set respectively on each branch pipe of the 3rd manifold 206 3rd regulating valve 209.Burner entrance 303 and combustion-supporting confession air port are arranged in 3 circumferential wall of burner, can be combustions The flue gas burnt in device 3 is longer with air mixture time, and mixing is more uniformly distributed, and is more fully burnt.3 combustion-supporting confession of burner Wind be air blower by the air of certain pressure blast it is combustion-supporting be injected into burner 3 for air port, combustion-supporting air feed approach axis can To be radially or tangentially；Carry out syngas combustion.Meanwhile high-temperature blower extracts the flue gas generation certain pressure drum of incinerator 104 Enter two on the corresponding air compartment 107 in 103 stoker fired grate formula moving hearth of gasification furnace, 105 lower section and 103 forward and backward arch of gasification furnace Secondary air compartment, first manifold 204 also have a branch pipe being connected with burner smoke inlet, which, which is equipped with, corresponds to Regulating valve.What high-temperature blower extracted has not utilized remainder flue gas, then is injected into combustion by 3 smoke inlet of burner Device 3 is burnt, carries out syngas combustion, by corresponding adjusting valve regulation volume of air supply, this structure can reduce thermal losses and raising Heat exchanger effectiveness substantially increases the organic efficiency of heat, and can efficiently reduce pollutant discharge amount.

Further, the branch pipe that first manifold is connected with burner entrance be equipped with flue gas amount detecting device 327, Second flue gas composition detection device 328, the flue gas amount detecting device, the second flue gas composition detection device and the 3rd regulating valve It is electrically connected with control unit respectively, described control unit handles the synthesis flue gas composition ginseng of the second flue gas composition detection device acquisition Number and the synthesis flue gas flow parameter of flue gas amount detecting device acquisition, and pass through the 3rd regulating valve control combustion air volume of air supply.

The incinerator 104 is equipped with slag mouth 117, and the slag notch 116 of the incinerator 104 is located at incinerator slag mouth 117 underface, the slag mouth 117 are connected by pipeline with the slag notch of dust-extraction unit 201.This sealing structure effect is good, Reduction pollutant discharge amount can effectively be held.

A kind of waste disposal method of stoker fired grate formula refuse gasification incineration system, this method carry out according to the following steps：

Step A, the gate of stoker fired grate formula refuse gasification incinerator 1 and atmospheric vent is closed, starts mechanical grate-type rubbish Garbage raw material is put into feed hopper 102 by rubbish incinerator 1, and the pusher back and forth of garbage pusher device 106 will be from feed hopper 102 The garbage raw material fallen is pushed into the windrow seal section 108 between feed hopper 102, gasification furnace 103, forms windrow seal section 108 Windrow sealing state, extra rubbish fall into the moving hearth 105 of gasification furnace 103, and the moving hearth 105 of gasification furnace 103 works, Rubbish is conveyed into transition slag section 109, the pusher back and forth of residue pusher 110 pushes away the rubbish in transition slag section 109 Enter in incinerator 104, the work conveying garbage of moving hearth 105 of incinerator 104, until rubbish is in gasification furnace 103, incinerator 104 moving hearth 105 is accumulated to required thickness：0.6-0.8m, during baker, the rubbish accumulated can protect mobile stove Bed 105, prevents scaling loss siege 105.Stop feeding intake to feed hopper 102, the moving hearth 105 of gasification furnace 103 and incinerator 104 stops Only work, then, with start-up burner by the igniting combustion supporting hole 114 of gasification furnace 103 and incinerator 104 respectively with gasification furnace 103 and the burner hearth of incinerator 104 communicate, under the action of start-up burner, gasification furnace 103 and incinerator 104 are carried out furnace lifting, Baker is treated that this process is stablized and is completed, gasification furnace 103 and 104 burner hearth of incinerator is made to reach 600-700 DEG C of predetermined temperature；Baker Purpose be in order to remove the Natural Water and the crystallization water in lining, in order to avoid when going into operation due to furnace temperature rise it is too fast, moisture is a large amount of Expansion causes furnace body spalling, bubbling or deformation even furnace wall to collapse, and influences the intensity and service life of heating furnace furnace wall.

Step B, start and adjust Xun Huan air feed system 2, adjust gasification furnace 103, incinerator 104 and Xun Huan air feed system 2 Technological parameter (pusher speed, fire grate speed, a wind-warm syndrome, wind pressure and air quantity, secondary air temperature, wind pressure and air quantity, furnace temperature, Negative pressure, thickness of feed layer etc. in stove), it feeds intake to feed hopper 102, the work conveying garbage of moving hearth 105 of gasification furnace 103, rubbish Burning is proceeded by the burner hearth of gasification furnace 103, rubbish residue is accumulated to form windrow sealing at transition slag section 109, made The stove chamber inner combustion state temperature of gasification furnace 103 is stabilized to 850 DEG C or more, the work output combustion of moving hearth 105 of incinerator 104 Rubbish residue after cinder.

Step C, gasification furnace 103, incinerator 104 and each technological parameter (the pusher speed for cycling air feed system 2 are adjusted Degree, fire grate speed, a wind-warm syndrome, wind pressure and air quantity, secondary air temperature, wind pressure and air quantity, furnace temperature, negative pressure, thickness of feed layer in stove Deng), gasification furnace 103 gradually gasifies to rubbish, and gasification temperature stabilization makes gasification furnace 103 stablize production between 700-800 DEG C The high-temperature flue gas of the raw synthesis gas containing 10%-20%, it is equal that 103 vaporized state of gasification furnace stablizes progress low temperature, medium temperature or high-temperature gasification It can.Make 104 combustion state temperature stabilization of incinerator to 850 DEG C or more, realize rubbish continuous gasification burning disposal；It need to adjust simultaneously Each technological parameter of burner 3 makes 3 tangential 304 temperature stabilization of outlet flue of burner to 850 DEG C or more.

Step D, it need to overhaul or during blowing out, stop feeding intake, adjust gasification furnace 103, incinerator 104 and cycle air feed system 2 technological parameter makes gasification furnace 103 be gradually restored to combustion state, after rubbish and rubbish residue are burnt, closes stoker fired grate Formula refuse gasification incinerator 1 and Xun Huan air feed system 2.Each technological parameter of adjusting burner 3 simultaneously is needed, makes gasification furnace 103 are gradually restored to combustion state.

Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, 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 (10)

1. a kind of synthesis gas parameter feedback burner, it is characterised in that：Combustion chamber point is set on the top plate of the burner Fiery combustion-supporting hole, the tangentially-arranged burner entrance of upper end edge of the burner side wall, the inner cavity of the burner includes Burning gallery, the V set gradually from top to bottom bores passage, flying dust expansion chamber, taper slag notch and bores what passage was set around V Ring smoke passage, annular vent flue pass through annular between the ring smoke passage, annular vent flue and V cone passages Air guide pier separates, and several combustion airs are set on the side wall of the burning gallery, and for air port, each combustion air is respectively positioned on for air port The lower section of burner entrance, the V cones passage is up big and down small, and the diameter of the flying dust expansion chamber is more than V cone passages upper end Diameter, the breathing area of the ring smoke passage taper into from top to bottom, and lower end and the flying dust of ring smoke passage settle Room connects, and the lower end of the annular vent flue is connected with the upper end of ring smoke passage, sets and cuts on the side wall of burner It is connected to outlet flue with annular vent flue, the taper slag notch is up big and down small.

2. a kind of synthesis gas parameter feedback burner according to claim 1, it is characterised in that：The ring smoke leads to The top in road is circumferentially arranged to be had and several up-narrow and down-wide divides gas pier, narrow wide flue gas circle under being formed between adjacent point of gas pier Road.

3. a kind of synthesis gas parameter feedback burner according to claim 1, it is characterised in that：The burner enters Mouth connects to feed the high-temperature flue of high-temperature flue gas, and smoke movement parameter acquisition unit is set on the high-temperature flue, described Burner entrance sets variable synthesis gas inlet, and the smoke movement parameter acquisition unit is included at sensing reception and signal Reason unit, cooling unit, heat-insulated pedestal and sensing element, the heat-insulated pedestal are fixed on the tube wall of high-temperature flue, the sense Answering element, the measurement end of sensing element stretches into high-temperature flue along being fixed on perpendicular to the direction of high-temperature flue axis on heat-insulated pedestal Interior, the sensing receives and signal processing unit is fixed on one end that sensing element is located at outside high-temperature flue, and sensing receives and letter Number processing unit measures flue gas flow, flow velocity in high-temperature flue by sensing element, and the cooling unit is enclosed in sensing member Part is located on one section between heat-insulated pedestal, sensing reception and signal processing unit, and the variable synthesis gas inlet includes holding Row mechanism, fire resisting bore adjustment seat, one end of the fire resisting bore adjustment seat are stretched into burner entrance, and other end connection is held Row mechanism, further includes the first flue gas composition detection device and control unit, and the first flue gas composition detection device is mounted on height For detecting flue gas composition in high-temperature flue on warm flue, described control unit respectively with the first flue gas composition detection device, Sensing receives and signal processing unit, executing agency's electrical connection, control unit processing smoke movement parameter, synthesis flue gas composition ginseng Number, and pass through the flexible of actuating mechanism controls fire resisting bore adjustment seat, and then control the pore size of variable synthesis gas inlet.

4. a kind of synthesis gas parameter feedback burner according to claim 3, it is characterised in that：The variable synthesis cigarette Gas import further includes fireproof flue, heat-insulating and sealing, compresses thermal insulation layer, elevated-temperature seal, and the cross section of the fireproof flue is U-shaped, The opening of fireproof flue is sealed by compressing thermal insulation layer, and the fire resisting bore adjustment seat stretches into fireproof flue through thermal insulation layer is compressed Interior, the width that the fire resisting bore adjustment seat is located at one end in fireproof flue is located at more than fire resisting bore adjustment seat outside fireproof flue The width of one end sets elevated-temperature seal between fire resisting bore adjustment seat and fireproof flue side wall, fire resisting bore adjustment seat is with compressing Heat-insulating and sealing is set between thermal insulation layer.

5. a kind of stoker fired grate formula refuse gasification incineration system, including incinerator, it is characterised in that：The incinerator Feed hopper, gasification furnace and the incinerator set gradually including grate and on grate along feedstock direction, the rear of gasification furnace is The slag mouth of gasification furnace, incinerator are located at the front lower place of gasification furnace slag mouth, and the rear of incinerator is the slag notch of incinerator, institute Grate is stated equipped with garbage pusher device, the garbage pusher device is located at the lower section of feed hopper, for the rubbish in feed hopper to be pushed away Enter in gasification furnace, being respectively arranged below with for the lower section of gasification furnace moving hearth and incinerator moving hearth at least one is independently set The air compartment put is equipped with windrow seal section, the grate between the gasification furnace and incinerator between the feed hopper, gasification furnace Transition slag section is left on part, the transition slag section is provided with residue pusher, for the rubbish that will be fallen in gasification furnace In residue push-in incinerator；

The gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of the gasification furnace is close by windrow respectively Section, the sealing of transition slag section are sealed, the transition slag section isolation gasification furnace, incinerator make gasification furnace, incinerator mutual indepedent；

The gasification furnace, incinerator respectively in arching upward shape, set respectively on the face arch of the gasification furnace, rear arch it is secondary for air port, Vault the first exhanst gas outlet of setting of the gasification furnace, vault the second exhanst gas outlet of setting of the incinerator, the gasification furnace, Igniting combustion supporting hole is respectively equipped on incinerator；

Any burners of claim 1-4 are further included, the burner entrance is connected with the first exhanst gas outlet；

Cycling air feed system is further included, the Xun Huan air feed system includes dust-extraction unit, the first wind turbine, the second wind turbine, described to remove The inlet end of dirt device is connected by pipeline with the second exhanst gas outlet, and the outlet side of the dust-extraction unit passes through pipeline and the first wind The inlet end connection of machine, the outlet side of first wind turbine connect the manifold of the first manifold, the branch pipe difference of first manifold It is connected with the secondary confession air port on each air compartment of the lower section of gasification furnace moving hearth and gasification trimmer arch, rear arch, it is described First regulating valve is set respectively on each branch pipe of the first manifold, the air inlet and atmosphere of second wind turbine, described second The gas outlet of wind turbine connects the manifold of the second manifold, the branch pipe of second manifold respectively with it is each below incinerator moving hearth The inlet end of air compartment and dust-extraction unit, outlet side connect, and the second tune is set respectively on each branch pipe of second manifold Save valve, further include the 3rd manifold, the manifold of the 3rd manifold is connected with the gas outlet of the second wind turbine, the 3rd manifold it is each Branch pipe connects respectively with each combustion air for air port, and the 3rd regulating valve is set respectively on each branch pipe of the 3rd manifold.

6. a kind of stoker fired grate formula refuse gasification incineration system according to claim 5, it is characterised in that：First discrimination Pipe also has a branch pipe being connected with burner entrance, which is equipped with corresponding regulating valve, what the first wind turbine extracted The remainder flue gas not utilized is injected into burner by burner entrance, and passes through corresponding adjusting valve regulation Volume of air supply.

7. a kind of stoker fired grate formula refuse gasification incineration system according to claim 6, it is characterised in that：First discrimination It manages the branch pipe being connected with burner entrance and is equipped with flue gas amount detecting device, the second flue gas composition detection device, the flue gas Amount detecting device, the second flue gas composition detection device and the 3rd regulating valve are electrically connected with control unit respectively, and the control is single The synthesis flue gas composition parameter of member processing the second flue gas composition detection device acquisition and the synthesis of flue gas amount detecting device acquisition Flue gas flow parameter, and pass through the 3rd regulating valve control combustion air volume of air supply.

8. a kind of stoker fired grate formula refuse gasification incineration system according to claim 5, it is characterised in that：The dedusting dress It is set to cyclone separator；First wind turbine is high-temperature blower, and second wind turbine is air blower.

9. a kind of stoker fired grate formula refuse gasification incineration system according to claim 5, it is characterised in that：The transition falls Isolating door to be opened/closed is provided in slag section, the isolating door is used to separate gasification furnace, incinerator.

10. a kind of stoker fired grate formula refuse gasification incineration system according to claim 5, it is characterised in that：The gasification The face arch of stove is flat construction, alternatively, the face arch of gasification furnace is inclined upwardly structure for rear end.