CN205558990U - Utilize waste gasification to burn boiler power generation system of synthetic gas - Google Patents

Abstract

The utility model discloses an it is less to change the heat exchange efficiency loss, utilize waste gasification to burn boiler power generation system of synthetic gas that thermal recovery efficiency is higher. Including steam turbine, generator, high -pressure steam input pipe, middling pressure steam input pipe, the steam turbine includes high -pressure cylinder, intermediate cylinder, low -pressure cylinder, connects first order moisture separator, first order high pressure vapour heater between high -pressure cylinder, the intermediate cylinder, connects second level moisture separator, second level high pressure vapour heater between intermediate cylinder, the low -pressure cylinder, the steam output of low -pressure cylinder connects gradually condenser, water pump, low pressure steam -water heater, oxygen -eliminating device, booster water pump, high -pressure steam -water heater through the pipeline, high pressure steam input pipe connects the high -pressure cylinder to the oxygen -eliminating device is connected in the hot junction that adds that adds hot junction, high -pressure steam -water heater through first order high pressure vapour heater, connects the oxygen -eliminating device through the hot junction that adds that adds hot junction, low pressure steam -water heater of second level high pressure vapour heater.

Description

Refuse gasification is utilized to burn the boiler power generation system of synthesis gas

Technical field

The utility model belongs to solid waste incineration processing technology field, particularly relates to the boiler power generation system utilizing refuse gasification to burn synthesis gas.

Background technology

Existing technology of garbage disposal mainly has burning, sanitary landfills, compost, waste recovery etc..The advantages such as in garbage disposal routine techniques, it is obvious that burning disposal has reduced training, and innoxious thoroughly occupation of land amount is little, and waste heat energy is obtained by, and secondary pollution is few, meet the strategic requirement of China's sustainable development.But along with both at home and abroad environmental requirement being improved constantly, how to strengthen the control to secondary pollution particularly important.Therefore, refuse pyrolysis gasification burning technology is by the road gradually shifting industrial applications onto, primarily now using all kinds of incineration technology especially for domestic rubbish, gasification burning technology industrializes widely regenerates the technological innovation bringing domestic garbage disposal industry.

For many years, China's scientific research to the gasification burning technology such as living beings, rubbish, it is in progress a lot of, the basic research in laboratory is a lot, also has application study, such as: rotary kiln type, vertical and the destructive gasifying of fluidized bed type or temperature gasification and high fusion technology etc..But Technique Popularizing application is upper or there is a definite limitation, and raw material type, 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, its application accounts for more than the 80% of the whole world waste incineration total market size, wherein has and uses mechanical type backstepping fire grate, forwards fire grate or combined fire grate in body of heater, also has the employing fire grate such as chain-plate type and drum-type.In boiler plant, it is a lot of that boiler reclaims heat methods, technology maturation；Heating style is the most, such as: the thermals source such as solar energy, smelting furnace waste heat, coal furnace, fluid bed, fixed bed, rotary kiln, utilizes boiler to reclaim heat, be used for generating electricity, heat supply, heating etc..

In sum, typical gasification burning and boiler plant technology maturation, it is respectively arranged with himself advantage, but in the actual application of China, needs the problem and shortage solved:

1., for characteristics such as China's house refuse water content height, complicated components, the technology of moving hearth uses, and needs emphasis to consider the conveying capacity of rubbish.In flue gas after simultaneously burning, fly ash content is higher, and collecting ash is heavier, and the deashing repair and maintenance cycle is short.

2. being on the increase along with refuse production, sanitary fill such as mountain, garbage treatment quantity must be effectively improved, could meeting the market requirement.

3., in the face of strict pollutant emission requirement, secondary pollution controls the key problem being technically need to solve.

4., in order to effectively increase economic efficiency, in rubbish heat treatment process, the organic efficiency of heat needs to improve.Existing rubbish heat treatment technics generally uses the high-temperature flue gas heat after boiler recovery waste incineration, produce steam and shift steam turbine power generation onto, whole transition heat efficiency losses is relatively big, processes identical quantity of refuse, relatively reduces thermal losses and raising heat exchanger effectiveness just can improve the thermal efficiency.

Existing incinerator such as following two patent of invention: an open question in multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) and two-stage garbage incinerator (ZL201010268376.2): rubbish heat treatment mode is relatively backward, simply be dried-burn-burn, the process of solid combustion release heat；In stove, thermal chemical reaction is based on oxidation reaction, and reduction reaction assists, and is easily generated secondary pollution；When rubbish burns in stove, crossing oxygen quotient big, First air, Secondary Air infeed amount are big, and in flue gas, dust content is higher, affect heat reclaiming system and smoke processing system relatively big, easy dust stratification, and exhaust gas volumn is relatively big, reduces thermal conversion efficiency；The gasification furnace not being separately provided and incinerator, can only process rubbish by several times, it is impossible to realizing large-scale rubbish continuous gasification burning disposal, garbage treatment quantity is less.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of transition heat efficiency losses is less, the higher boiler power generation system utilizing refuse gasification to burn synthesis gas of the organic efficiency of heat.

The purpose of this utility model is achieved in that

Utilizing refuse gasification to burn the boiler power generation system of synthesis gas, including steam turbine and the generator that is connected with turbine power, described steam turbine includes high-pressure cylinder, intermediate cylinder, low-pressure cylinder,

nullDescribed high-pressure cylinder、First order steam trap is set between intermediate cylinder、First order high pressure vapour vapour heater，The described input of first order steam trap is connected by pipeline with the output of high-pressure cylinder，The steam output end of first order steam trap is connected by pipeline with the input that is heated of first order high pressure vapour vapour heater，Being connected by pipeline with the steam input of intermediate cylinder by hot output terminal of described first order high pressure vapour vapour heater，Intermediate cylinder、Second level steam trap is set between low-pressure cylinder、Second level high pressure vapour vapour heater，The input of described second level steam trap is connected by pipeline with intermediate cylinder output，The steam output end of second level steam trap is connected by pipeline with the input that is heated of second level high pressure vapour vapour heater，Being connected by pipeline with the steam input of low-pressure cylinder by hot output terminal of described second level high pressure vapour vapour heater；

The steam output end of low-pressure cylinder is sequentially connected with condenser by pipeline, water pump, low pressure vapor heater, oxygen-eliminating device, booster water pump, high pressure steam water heater, the input that is heated of described low pressure vapor heater is connected with water pump, being connected with oxygen-eliminating device by hot output terminal of low pressure vapor heater, the input of oxygen-eliminating device is provided with moisturizing pipeline, the input that is heated of described high pressure steam water heater is connected with booster water pump, high pressure steam water heater by hot output terminal export boiler feed water, the water output of described first order steam trap, the water output of second level steam trap connects the input of oxygen-eliminating device respectively by pipeline；

Also include high steam input pipe, middle pressure steam input pipe, medium pressure steam input pipe connects the input of intermediate cylinder, described high steam input pipe connects the input of high-pressure cylinder respectively by pipeline, the heating input of first order high pressure vapour vapour heater, the heating input of second level high pressure vapour vapour heater, the hot output terminal that adds of first order high pressure vapour vapour heater connects the heating input of high pressure steam water heater, the hot output terminal that adds of high pressure steam water heater connects the input of oxygen-eliminating device, the hot output terminal that adds of second level high pressure vapour vapour heater connects the heating input of low pressure vapor heater, the hot output terminal that adds of low pressure vapor heater connects the input of oxygen-eliminating device.

Described high-pressure cylinder is provided with the first steam and takes pipe, first steam takes pipe and takes steam to the output of high-pressure cylinder, first steam takes the heating input of the output connection high pressure steam water heater of pipe, medium pressure cylinder is provided with the second steam and takes pipe, second steam takes pipe and takes steam to the output of intermediate cylinder, and the second steam takes the heating input of the output connection low pressure vapor heater of pipe.

nullAlso include boiler body，Described boiler body has cyclone combustion chamber、Furnace chamber a、Furnace chamber b，The lower end of described cyclone combustion chamber arranges smoke inlet，Cyclone combustion chamber upper end is the 3rd exhanst gas outlet，3rd exhanst gas outlet of cyclone combustion chamber upper end connects with the upper end of furnace chamber a，Described furnace chamber a、The lower end connection of furnace chamber b，The upper end of described furnace chamber b arranges waste gas outlet，Described cyclone firing is indoor circumferentially arranged with water-cooling wall ringwise，It is provided with superheater I in described furnace chamber a、Superheater II，Described superheater I is positioned at the top of superheater II，It is provided with evaporimeter in furnace chamber b，The top of boiler body arranges drum，Described cyclone combustion chamber、Furnace chamber a、Furnace chamber b is respectively positioned on below drum，Described drum is provided with carbonated drink import，Carbonated drink import is connected by hot output terminal by pipeline and high pressure steam water heater，Water separator it is provided with in drum，For separating steam water interface，Drum connects the water inlet of water-cooling wall by the first down-comer，For exporting the isolated water of water separator，Drum connects the water inlet of evaporimeter by the second down-comer，For exporting the isolated water of water separator，Described water-cooling wall、The venthole of evaporimeter connects the air intake of drum respectively by steam pipe，For the high-temperature steam that refluxes，The saturated vapor outlet of described drum connects superheater I by pipeline respectively、The air intake of superheater II，For by the high-temperature steam input superheater of backflow，The venthole of described superheater I connects high steam input pipe output high pressure superheated steam，The venthole connection middle pressure steam input pipe output of described superheater II presses through vapours.

Flue gas in order to discharge furnace chamber b carries out further heat recovery, improve heat recovery efficiency, further, described boiler body has furnace chamber c, the upper end of described furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, and the lower end of furnace chamber c arranges Waste gas outlet, is provided with economizer in described furnace chamber c, the water inlet of described economizer is connected by hot output terminal with high pressure steam water heater, the delivery port of described economizer and the carbonated drink inlet communication of drum.

Flue gas in order to discharge furnace chamber c carries out harmless treatment, it is preferable that the Waste gas outlet of furnace chamber c connects flue gas purification system, aeration tower that described flue gas purification system includes being sequentially connected in series along discharge directions, deduster, air-introduced machine, chimney.

Further, also include the gasification furnace of stoker fired grate formula refuse gasification incinerator, incinerator and circulation air feed system thereof, can seal or connect between gasification furnace and incinerator, the lower section of gasification furnace siege and incinerator siege be respectively arranged below with at least one independent air compartment, secondary it is respectively provided with for air port on the face arch of described gasification furnace, rear arch, the vault of described gasification furnace arranges the first exhanst gas outlet, the smoke inlet of described cyclone combustion chamber is connected by pipeline and the first exhanst gas outlet, and the vault of described incinerator arranges the second exhanst gas outlet；

nullDescribed circulation air feed system includes dust arrester、First blower fan、Second blower fan，The inlet end of described dust arrester is connected by pipeline and the second exhanst gas outlet，The outlet side of described dust arrester is connected by the inlet end of pipeline and the first blower fan，The outlet side of described first blower fan connects the house steward of the first manifold，The arm of described first manifold respectively with each air compartment of the lower section of gasification furnace moving hearth、Each secondary on gasification furnace is for the smoke inlet connection of air port and cyclone combustion chamber，The first regulation valve it is respectively provided with on each arm of described first manifold，The air inlet of described second blower fan and atmosphere，The gas outlet of described second blower fan connects the house steward of the second manifold，The arm of described second manifold respectively with incinerator moving hearth below each air compartment and the inlet end of dust arrester、Outlet side connects，The second regulation valve it is respectively provided with on each arm of described second manifold.

Flue gas in order to discharge furnace chamber b carries out further heat recovery, improve heat recovery efficiency, preferably, described boiler body has furnace chamber c, the upper end of described furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, and the lower end of furnace chamber c arranges Waste gas outlet, is provided with air preheater in described furnace chamber c, the outlet side of described second blower fan connects the air inlet of air preheater, and the gas outlet of air preheater connects the house steward of the second manifold.

In order to reduce thermal losses and improve heat exchanger effectiveness, the organic efficiency making heat is higher, more fully utilize the wind that the second blower fan bloats, and it is beneficial to the intake of finer regulation cyclone combustion chamber each several part, preferably, described cyclone combustion chamber is provided with some combustion airs for air port, described some combustion airs are positioned at smoke inlet for air port, between 3rd exhanst gas outlet, also include the 3rd manifold, the described house steward of the 3rd manifold connects with the gas outlet of the second blower fan, each arm of described 3rd manifold connects for air port with some combustion airs respectively, the 3rd regulation valve it is respectively provided with on each arm of the 3rd manifold.

In order in discharging furnace chamber a, furnace chamber b, flue gas deposits the waste residue produced, and prevent waste residue effusion from producing pollution, it is preferable that being provided with common slag notch below described furnace chamber a, furnace chamber b, this common slag notch connects with the burner hearth of gasification furnace.

In order to discharge the waste residue that cyclone firing indoor flue gas deposition produces, and prevent waste residue effusion from producing pollution, it is preferable that the lower end of described cyclone combustion chamber is provided with the taper slag notch that radius from top to bottom diminishes, and this taper slag notch connects with the burner hearth of gasification furnace.

Owing to have employed technique scheme, the utility model has the advantages that

The steam that steam turbine can not utilized by condenser is all converted to water, and absorb the heat of steam release, the Main Function of oxygen-eliminating device is exactly the oxygen removing in boiler feedwater with it and other gas, ensure the quality of feedwater, booster water pump can improve hydraulic pressure, it is ensured that to the water supply capacity of water input system, electricity generation system is by heating low-grade steam and condensed water by high-grade steam, improve utilization rate of waste heat, reduce thermal losses.

The water-cooling wall of annular is arranged on cyclone combustion chamber by this steam generator system, and synthesis gas is the most abundant in cyclone firing Indoor Combustion, and the temperature that burning produces is higher, relatively reduces thermal losses and improves heat exchanger effectiveness.The origin of heat that this steam generator system reclaims is in the high-temperature synthesis gas flue gas of refuse gasification outlet of still, synthesis gas flue gas enters cyclone combustion chamber, tangential air-supplied combustion-supporting flammable synthesis gas in cyclone combustion chamber simultaneously, flue gas sequentially passes through cyclone combustion chamber, furnace chamber a, furnace chamber b, economizer and air preheater.Recycling economizer preheating condensed water, preheating condensed water enters boiler part, and condensed water heats in water-cooling wall and evaporimeter, forms saturated vapor and enters drum, and after steam-water separation, saturated vapor enters superheater, is again thermally formed superheated steam output, is used for generating electricity.The utility model is novel, utilizes cyclone-burning method, decreases fly ash content in flue gas；Syngas combustion temperature is high, and gas residence time is long, and pollutant is effectively decomposed, and reduces pollutant emission, it is achieved that the synthesis gas burning disposal after rubbish continuous gasification and heat recovery and utilization.

The gasification furnace of incinerator, incinerator are provided separately, the vault of gasification furnace arranges the first exhanst gas outlet, the vault of incinerator arranges the second exhanst gas outlet, it is beneficial to process flue gas respectively according to the difference of flue gas quality, be conducive to flue gas ash removal simultaneously, can provide the flue gas of higher quality, the utilization rate making flue gas is higher, and the waste residue of discharge is less.

Second blower fan blasts air and provides First air for incinerator and provide temperature adjustment air feed for cyclone separator, the first blower fan, by the second regulation valve regulation wind supply quantity on corresponding pipeline, makes incinerator residue fully burn；Then, the flue gas of the first blower fan extraction incinerator, after temperature adjustment and cyclone collection flying dust, form First air and the Secondary Air of the flue gas supply gasification furnace of certain pressure, by the first regulation valve regulation wind supply quantity on corresponding pipeline, in making gasification furnace, rubbish produces gasification, gasification furnace is contained within the flue gas of a certain amount of synthesis gas, discharge from the first exhanst gas outlet, enter cyclone combustion chamber processing links, the unnecessary flue gas of the first blower fan extraction also simultaneously enters cyclone combustion chamber, take full advantage of the high-temperature flue gas that incinerator is discharged, put forward high-octane utilization rate, cyclone combustion chamber provides high-temperature flue gas.The stoker fired grate formula refuse gasification incinerator garbage treatment quantity of this structure is big, the rubbish bed of material can experience on stoker fired grate be dried, gasification and residue burn the stage, adapt to the characteristics such as China's house refuse water content height, complicated component, improve the energy conversion efficiency in garbage processing procedure and reduce pollutant discharge amount in flue gas, effectively prevent secondary pollution, and it is capable of large-scale rubbish continuous gasification burning disposal, ensure that refuse gasification burns effect and lime-ash clinker ignition loss, relatively reduce thermal losses and improve heat exchanger effectiveness, improve the thermal efficiency.

Accompanying drawing explanation

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

Fig. 2 is the structural representation of cyclone combustion chamber；

Fig. 3 is the schematic top plan view of Fig. 2；

Fig. 4 is the structural representation of electricity generation system；

Fig. 5 is the structural representation of flue gas purification system；

Fig. 6 is the structural representation of incinerator；

Fig. 7 is the structural representation of circulation air feed system.

Reference

1 is incinerator, and 101 is grate, and 102 is feed hopper, 103 is gasification furnace, and 104 is incinerator, and 105 is siege, 106 is garbage pusher device, and 107 is an air compartment, and 108 is windrow seal section, 109 fall slag section for transition, and 110 is residue pusher, and 111 is isolating door, 112 is the first exhanst gas outlet, and 113 is the second exhanst gas outlet, and 114 is igniting combustion supporting hole, 115 supply air port for secondary, and 116 is slag notch, and 117 is the cinder notch that falls；

201 is dust arrester, and 202 is the first blower fan, and 203 is the second blower fan, and 204 is the first manifold, and 205 is the second manifold, and 206 is the 3rd manifold, and 207 is the first regulation valve, and 208 is the second regulation valve, and 209 is the 3rd regulation valve；

3 is cyclone combustion chamber, and 301 is combustion chamber ignition combustion-supporting hole, and 302 is taper slag notch, and 303 is smoke inlet, and 304 is the 3rd exhanst gas outlet, and 305 supply air port for combustion air；

4 is boiler body, and 401 is superheater I, and 402 is furnace chamber a, 403 is furnace chamber b, and 404 is furnace chamber c, and 405 is water-cooling wall, 406 is superheater II, and 407 is evaporimeter, and 408 is drum, 409 is the first down-comer, and 410 is the second down-comer, and 418 is economizer, 419 is flue gas purification system, and 420 is aeration tower, and 421 is deduster, 422 is air-introduced machine, and 423 is chimney, and 424 is air preheater；

601 is high-pressure cylinder, 602 is intermediate cylinder, 603 is low-pressure cylinder, and 604 is first order steam trap, and 605 is first order high pressure vapour vapour heater, 606 is second level steam trap, 607 is second level high pressure vapour vapour heater, and 608 is condenser, and 609 is water pump, 610 is oxygen-eliminating device, 611 is booster water pump, and 612 is moisturizing pipeline, and 613 is generator, 614 is low pressure vapor heater, 615 is high pressure steam water heater, and 616 is high steam input pipe, and 617 is middle pressure steam input pipe, 618 is that the first steam takes pipe, and 619 is that the second steam takes pipe.

Detailed description of the invention

See Fig. 1 to Fig. 7, for utilizing a kind of preferred embodiment of the boiler power generation system of refuse gasification burning synthesis gas.

nullSee Fig. 4，Electricity generation system includes steam turbine and the generator 613 being connected with turbine power，Described steam turbine includes high-pressure cylinder 601、Intermediate cylinder 602、Low-pressure cylinder 603，Described high-pressure cylinder 601、First order steam trap 604 is set between intermediate cylinder 602、First order high pressure vapour vapour heater 605，The input of described first order steam trap 604 is connected by pipeline with the output of high-pressure cylinder 601，The steam output end of first order steam trap 604 is connected by pipeline with the input that is heated of first order high pressure vapour vapour heater 605，Being connected by pipeline with the steam input of intermediate cylinder 602 by hot output terminal of described first order high pressure vapour vapour heater 605，Intermediate cylinder 602、Second level steam trap 606 is set between low-pressure cylinder 603、Second level high pressure vapour vapour heater 607，The input of described second level steam trap 606 is connected by pipeline with intermediate cylinder 602 output，The steam output end of second level steam trap 606 is connected by pipeline with the input that is heated of second level high pressure vapour vapour heater 607，Being connected by pipeline with the steam input of low-pressure cylinder 603 by hot output terminal of described second level high pressure vapour vapour heater 607.

The steam input of low-pressure cylinder 603 is sequentially connected with condenser 608 by pipeline, water pump 609, low pressure vapor heater 614, oxygen-eliminating device 610, booster water pump 611, high pressure steam water heater 615, the input that is heated of described low pressure vapor heater 614 is connected with water pump 609, being connected with oxygen-eliminating device 610 by hot output terminal of low pressure vapor heater 614, the input of oxygen-eliminating device 610 is provided with moisturizing pipeline 612, the input that is heated of described high pressure steam water heater 615 is connected with booster water pump 611, high pressure steam water heater 615 by hot output terminal export boiler feed water, the water output of described first order steam trap 604, the water output of second level steam trap 606 connects the input of oxygen-eliminating device 610 respectively by pipeline.

Also include high steam input pipe 616, middle pressure steam input pipe 617, medium pressure steam input pipe 617 connects the input of intermediate cylinder 602, described high steam input pipe 616 respectively by pipeline connect the input of high-pressure cylinder 601, first order high pressure vapour vapour heater 605 heating input, the heating input of second level high pressure vapour vapour heater 607, first order high pressure vapour vapour heater 605 add thermal output End connects the heating input of high pressure steam water heater 615, the hot output terminal that adds of high pressure steam water heater 615 connects the input of oxygen-eliminating device 610, the hot output terminal that adds of second level high pressure vapour vapour heater 607 connects the heating input of low pressure vapor heater 614, and the hot output terminal that adds of low pressure vapor heater 614 connects the input of oxygen-eliminating device 610.

Described high-pressure cylinder 601 is provided with the first steam and takes pipe 618, first steam takes pipe 618 and takes steam to the output of high-pressure cylinder 601, first steam takes the heating input of the output connection high pressure steam water heater 615 of pipe 618, medium pressure cylinder 602 is provided with the second steam and takes pipe 619, second steam takes pipe 619 and takes steam to the output of intermediate cylinder 602, and the second steam takes the heating input of the output connection low pressure vapor heater 614 of pipe 619.

See Fig. 1, also include the gasification furnace 103 of stoker fired grate formula refuse gasification incinerator, incinerator 104 and circulation air feed system thereof, can seal or connect between gasification furnace 103 and incinerator 104, the lower section of gasification furnace 103 siege and incinerator 104 siege be respectively arranged below with two independent air compartments 107, secondary it is respectively provided with 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 vault of described incinerator 104 arranges the second exhanst gas outlet 113.

See Fig. 1, Fig. 2, Fig. 3, also include boiler body, described boiler body 4 has cyclone combustion chamber 3, furnace chamber a402, furnace chamber b403, furnace chamber c404, the lower end of described cyclone combustion chamber 3 arranges smoke inlet 303, the smoke inlet 303 of described cyclone combustion chamber 3 is connected with the first exhanst gas outlet 112 of gasification furnace 103 by pipeline, cyclone combustion chamber 3 upper end is the 3rd exhanst gas outlet 304, described smoke inlet the 303, the 3rd exhanst gas outlet 304 is positioned at the opposition side of cyclone combustion chamber 3 circumferential wall, and the top of cyclone combustion chamber 3 arranges combustion chamber ignition combustion-supporting hole 301.In order to discharge from the 3rd exhanst gas outlet 304 after making flue gas, combustion air be sufficiently mixed in cyclone combustion chamber 3, burning, described cyclone combustion chamber 3 is provided with some combustion airs and supplies air port 305, and described some combustion airs supply air port 305 between smoke inlet the 303, the 3rd exhanst gas outlet 304.Described smoke inlet the 303, the 3rd exhanst gas outlet 304, combustion air are radially or tangentially arranged along cyclone combustion chamber 3 circumferential wall for air port 305.3rd exhanst gas outlet 304 of cyclone combustion chamber 3 upper end connects with the upper end of furnace chamber a402, described furnace chamber a402, the lower end connection of furnace chamber b403, the upper end of described furnace chamber b403 arranges waste gas outlet, the lower end of described cyclone combustion chamber 3 is provided with the taper slag notch 302 that radius from top to bottom diminishes, and this taper slag notch 302 connects with the burner hearth of gasification furnace 103.Being provided with common slag notch below described furnace chamber a402, furnace chamber b403, this common slag notch connects with the burner hearth of gasification furnace 103.

nullIt is circumferentially with water-cooling wall 405 ringwise along inwall in described cyclone combustion chamber 3，It is provided with superheater I 401 in described furnace chamber a402、Superheater II 406，Described superheater I 401 is positioned at the top of superheater II 406，Evaporimeter 407 it is provided with in furnace chamber b403，The top of boiler body 4 arranges drum 408，Described cyclone combustion chamber 3、Furnace chamber a402、Furnace chamber b403 is respectively positioned on below drum 408，Described drum 408 is provided with carbonated drink import，For inputting steam water interface，Carbonated drink import is connected by hot output terminal by pipeline and high pressure steam water heater，It is provided with water separator in drum 408，For separating steam water interface，Drum 408 connects the water inlet of water-cooling wall 405 by the first down-comer 409，For exporting the isolated water of water separator，Drum 408 connects the air intake of evaporimeter 407 by the second down-comer 410，For exporting the isolated steam of water separator，Described water-cooling wall 405、The venthole of evaporimeter 407 connects the air intake of drum 408 respectively by steam pipe，For the high-temperature steam that refluxes，The saturated vapor outlet of described drum 408 connects superheater I 401 by pipeline respectively、The air intake of superheater II 406，For by the high-temperature steam input superheater 406 of backflow，The venthole of described superheater I 401 connects high steam input pipe output high pressure superheated steam，The venthole connection middle pressure steam input pipe output of described superheater II 406 presses through vapours.

The upper end of described furnace chamber c404 connects with the exhanst gas outlet of furnace chamber b403 upper end, the lower end of furnace chamber c404 arranges exhanst gas outlet, it is provided with economizer 418 in described furnace chamber c404, the water inlet of described economizer 418 connects with the delivery port of booster water pump 416, the delivery port of described economizer 418 and the carbonated drink inlet communication of drum 408.The exhanst gas outlet of furnace chamber c404 connects flue gas purification system 419, aeration tower 420 that described flue gas purification system 419 includes being sequentially connected in series along discharge directions, deduster 421, air-introduced machine 422, chimney 423.

Described circulation air feed system includes dust arrester the 201, first blower fan the 202, second blower fan 203, in the present embodiment, described dust arrester 201 is cyclone separator or hot precipitator 421, and described first blower fan 202 is high-temperature blower, and described second blower fan 203 is air blast.nullThe inlet end of described dust arrester 201 is connected by pipeline and the second exhanst gas outlet 113，The outlet side of described dust arrester 201 is connected by the inlet end of pipeline and the first blower fan 202，The outlet side of described first blower fan 202 connects the house steward of the first manifold 204，The arm of described first manifold 204 respectively with each air compartment 107 of the lower section of gasification furnace 103 moving hearth、Each secondary on gasification furnace 103 connects for the smoke inlet 303 of air port 115 and cyclone combustion chamber 3，It is respectively provided with the first regulation valve 207 on each arm of described first manifold 204，The air inlet of described second blower fan 203 and atmosphere，The gas outlet of described second blower fan 203 connects the house steward of the second manifold 205，The arm of described second manifold 205 respectively with incinerator 104 moving hearth below each air compartment 107 and the inlet end of dust arrester 201、Outlet side connects，It is respectively provided with the second regulation valve 208 on each arm of described second manifold 205.Also include the 3rd manifold 206, the house steward of described 3rd manifold 206 connects with the gas outlet of the second blower fan 203, each arm of described 3rd manifold 206 connects for air port 305 with some combustion airs respectively, and each arm of the 3rd manifold 206 is respectively provided with the 3rd regulation valve 209.Being provided with air preheater 424 in described furnace chamber c404, in the present embodiment, air preheater 424 is positioned at the downstream of economizer 418.The outlet side of described first blower fan 202 connects the air inlet of air preheater 424, and the gas outlet of air preheater 424 connects the house steward of the first manifold 204.

The origin of heat that steam generator system reclaims is in the high-temperature synthesis gas flue gas of refuse gasification outlet of still, synthesis gas flue gas enters cyclone combustion chamber, tangential air-supplied combustion-supporting flammable synthesis gas in cyclone combustion chamber simultaneously, flue gas sequentially passes through cyclone combustion chamber, furnace chamber a, furnace chamber b, economizer and air preheater.

Recycling economizer preheating condensed water, preheating condensed water enters boiler part, condensed water heats in water-cooling wall and evaporimeter, form saturated vapor and enter drum, after steam-water separation, saturated vapor enters high-pressure superheater and middle pressure superheater, again it is thermally formed superheated steam output generating, it is possible to heat supply, heating etc..

Steam turbine gradient energy-saving electricity generation system: the high steam from Boiler High Pressure superheater enters the generating of high-pressure cylinder pushing turbine；High-pressure cylinder steam (vapor) outlet connects first order steam-water separator, and after separation, steam enters first order high pressure vapour vapour heater, and outlet middle pressure steam collects entrance intermediate cylinder pushing turbine generating with pressing the middle pressure steam of superheater in boiler；Intermediate cylinder steam (vapor) outlet connects second level steam-water separator, and after separation, steam enters second level high pressure vapour vapour heater, and outlet low-pressure steam enters the generating of low-pressure cylinder pushing turbine.

Low-pressure cylinder steam (vapor) outlet connects condenser, is entered low pressure vapor heater by water pump pressurization after steam is condensed, and the condensed water after heating is formed and enters oxygen-eliminating device；Utilization of condensed water booster water pump pressurization after deoxygenation, feeds high pressure steam water heater, and the condensed water of heating enters economizer and again heats, and enters back into boiler part.

In high-pressure cylinder, take the high steam after steam uses with first order high pressure vapour vapour heater collect entrance high pressure steam water heater, form condensed water after heating condensate water and return oxygen-eliminating device；In intermediate cylinder, take the high steam after steam uses with second level high pressure vapour vapour heater collect entrance low pressure vapor heater, form condensed water after heating condensate water and return oxygen-eliminating device；In steam-water separator, isolated condensed water returns oxygen-eliminating device.

Heat low-grade steam and condensed water by high-grade steam, improve utilization rate of waste heat, reduce loss.

See Fig. 6, Fig. 7, concrete structure and circulation air feed system thereof for stoker fired grate formula refuse gasification incinerator 1, including grate 101, and feed hopper 102, gasification furnace 103 and the incinerator 104 set gradually along feedstock direction on grate 101, the rear of incinerator 104 is the slag notch 116 of incinerator 104, described incinerator 104 is provided with cinder notch 117, the slag notch 116 of described incinerator 104 is positioned at incinerator and falls the underface of cinder notch 117, described in the cinder notch 117 that falls connected with the slag notch of dust arrester 201 by pipeline.This sealing structure is effective, can effectively hold minimizing pollutant discharge amount.The carbon-containing part of rubbish is mainly gasified by gasification furnace 103, and discharges flammable gasification flue gas and rubbish residue, and incinerator 104 is substantially carried out the burning of carbon residue and processes, and discharges innoxious lime-ash.The siege 105 of gasification furnace 103 and incinerator 104 all uses the stoker fired grate formula moving hearth 105 that segmentation independently drives, the fire grate of stoker fired grate formula moving hearth 105 is to be forward lapped with fixed grate plate by moving grate plate, collect alternately and form, adjacent many groups moving grate plate is connected by pull bar, uses a set of driving means to drive.Stoker fired grate formula moving hearth 105 is as the carrier of conveying garbage, and its embodiment can be all types of moving hearths 105, such as chain-plate type, drum-type, multisection type fire grate system etc..

Described grate 101 is provided with garbage pusher device 106, described garbage pusher device 106 is positioned at the lower section of feed hopper 102, for the rubbish in feed hopper 102 is pushed in gasification furnace 103, the lower section of gasification furnace 103 moving hearth 105 and incinerator 104 moving hearth 105 be respectively arranged below with at least one air compartment 107 being independently arranged, in the present embodiment, the fire grate corresponding with an air compartment 107 of gasification furnace 103 first half, driving means, dryer section as gasification furnace 103 siege 105, one time latter half of with gasification furnace 103 fire grate that air compartment 107 is corresponding, driving means is as the gasification section of gasification furnace 103 siege 105.The dryer section of gasification furnace 103 siege 105, gasification section can be respectively adopted 1-2 independent air compartment 107 air feed, it is also possible to be respectively adopted 3-4 independent air compartment 107 air feed.Certainly, fire grate, driving means and an air compartment 107 also can not be correspondingly arranged, and preferably on regulation moving hearth 105, the bed of material moves and air distribution relation.Incinerator 104 can use 1-4 independent air compartment 107 air feed, burns rear lime-ash and gets rid of from slag notch, enters next step treatment process.

It is provided with windrow seal section 108 between described feed hopper 102, gasification furnace 103, garbage pusher device 106 work enters position and is in windrow seal section 108, garbage raw material is put into from feed hopper 102 and is fallen, garbage pusher device 106 retreats, advancing, pusher forms windrow at windrow seal section 108 back and forth again, makes gasification furnace 103 entrance be in windrow sealing state, strengthen gasification furnace 103 sealing effectiveness, solve garbage pusher device 106 and the easy leakage problem of feed hopper 102.When needing complete prepurging to dispose all rubbish, garbage pusher device 106 forward impelling half stroke again, rubbish is pushed completely in gasification furnace 103, makes gasification furnace 103 entrance lose windrow sealing effectiveness.Leave transition in grate 101 part between described gasification furnace 103 and incinerator 104 to fall slag section 109, the described transition slag section 109 that falls is provided with residue pusher 110, the rubbish residue fallen in by gasification furnace 103 pushes in incinerator 104, transition fall slag section 109 pile up rubbish residue time can be at windrow sealing state, strengthen gasification furnace 103 sealing effectiveness, solve to go here and there between gasification furnace 103, incinerator 104 problem of wind.In the present embodiment, described transition falls and is provided with isolating door 111 to be opened/closed in slag section 109, and described isolating door 111 is for cutting off gasification furnace 103, incinerator 104.At the furnace lifting initial stage or when needing to control to alter wind between gasification furnace 103 and incinerator, close isolating door 111, after the slag section that falls stacks the formation windrow sealing of a certain amount of residue, isolating door 111 can be kept to open, the residue pusher 110 arranged with lower section is coordinated to use, to realize rubbish continuous gasification burning disposal.

The upper end of described gasification furnace 103, incinerator 104 upper end respectively in the shape that arches upward, the face arch of described gasification furnace 103 is flat construction, or, the face arch of gasification furnace 103 is that rear end is inclined upwardly structure.The vault of described gasification furnace 103 arranges the first exhanst gas outlet 112, and the vault of described incinerator 104 arranges the second exhanst gas outlet 113, and the arching upward of described gasification furnace 103 upper end, the arching upward of incinerator 104 upper end are respectively equipped with igniting combustion supporting hole 114.Gasification flue gas is got rid of from first exhanst gas outlet the 112, second exhanst gas outlet 113, and gasification furnace 103 furnace cavity is compared with traditional incinerator, relatively reduced；Forward and backward arch position relative with moving hearth 105 diminishes, and decreases the space that incinerator takies, and is also easier to insulation, decreases the amount of leakage of heat, beneficially rubbish and fully gasify.Secondary it is respectively provided with for air port 115 on the face arch of described gasification furnace 103, rear arch.

Gasification furnace 103 First air is that the flue gas generation certain pressure of high-temperature blower extraction incinerator 104 blasts in an air compartment 107 corresponding below gasification furnace 103 stoker fired grate formula moving hearth 105, again by an air holes spray penetration rubbish on moving hearth 105, gasify, regulate wind supply quantity by the first regulation valve 207 on corresponding each arm.Gasification furnace 103 Secondary Air is that the flue gas generation certain pressure of high-temperature blower extraction incinerator 104 blasts gasification furnace 103 burner hearth, and its spray-hole is arranged on gasification furnace 103 face arch and rear arch.Secondary it is provided with for air port 115, raising gasification efficiency, polymer substance decomposition in enhancing flue gas on forward and backward arch.Have igniting combustion supporting hole 114 on rear arch, furnace lifting, baker and in stablizing gasification furnace 103 temperature use, regulate wind supply quantity by the first regulation valve 207 on corresponding each arm.The air inlet of described second blower fan 203 and atmosphere, the air that the second blower fan 203 blasts can be cold wind or the hot blast after heating.The gas outlet of described second blower fan 203 connects the house steward of the second manifold 205, the arm of described second manifold 205 connects with each air compartment 107 below incinerator 104 moving hearth 105 and the inlet end of dust arrester 201, outlet side respectively, and each arm of described second manifold 205 is respectively provided with the second regulation valve 208.Incinerator 104 First air is that the air of certain pressure is blasted in an air compartment 107 corresponding below stoker fired grate formula moving hearth 105 by air blast, again by an air holes spray penetration residue on moving hearth 105, carry out residual burning, regulate wind supply quantity by the first regulation valve 207 on corresponding each arm.The inlet end of dust arrester 201, the air intake of outlet side are temperature adjustment air feed, temperature adjustment air feed is that the air of certain pressure is blasted incinerator 104 and exports (i.e. cyclone inlet) and carry out temperature adjustment by air blast, simultaneously, Cyclone outlet (i.e. high-temperature blower entrance) blasts further temperature adjustment, regulates wind supply quantity by the first regulation valve 207 on corresponding each arm.

Circulation air feed system is to the waste disposal method after stoker fired grate formula refuse gasification incinerator air feed, and the method sequentially includes the following steps:

nullStep A、Close the gate of stoker fired grate formula refuse gasification incinerator 1 and atmospheric vent，Start machinery grate-type refuse gasification incinerator 1，Garbage raw material is put into feed hopper 102，Garbage pusher device 106 pusher back and forth，The garbage raw material fallen from feed hopper 102 is pushed feed hopper 102、Windrow seal section 108 between gasification furnace 103，Windrow seal section 108 is made to form windrow sealing state，Unnecessary rubbish falls into the moving hearth 105 of gasification furnace 103，The moving hearth 105 of gasification furnace 103 works，Rubbish is conveyed into transition fall slag section 109，Residue pusher 110 pusher back and forth，The rubbish in slag section 109 that transition fallen pushes in incinerator 104，The moving hearth 105 of incinerator 104 works conveying garbage，Until rubbish is at gasification furnace 103、The moving hearth 105 of incinerator 104 is accumulated to required thickness: 0.6-0.8m，During baker，The rubbish piled up can protect moving hearth 105，Prevent 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 by the igniting combustion supporting hole 114 of gasification furnace 103 and incinerator 104 respectively burner hearth with gasification furnace 103 and incinerator 104 communicate, under the effect of start-up burner, gasification furnace 103 and incinerator 104 are carried out furnace lifting, baker, treats that this process stabilization completes, make gasification furnace 103 and incinerator 104 burner hearth reach predetermined temperature 600-700 DEG C；The purpose of baker is the Natural Water in order to remove in lining and the crystallization water, in order to avoid rising too fast when going into operation due to furnace temperature, moisture content expands in a large number to cause body of heater spalling, bubbling or deform even furnace wall and collapses, and affects intensity and the service life of heating furnace furnace wall.

Step B, start regulation circulation air feed system 2, regulation gasification furnace 103, incinerator 104 and technological parameter (the pusher speed of circulation air feed system 2, fire grate speed, wind-warm syndrome, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature, negative pressure in stove, thickness of feed layer etc.), feed intake to feed hopper 102, the moving hearth 105 of gasification furnace 103 works conveying garbage, rubbish proceeds by burning in the burner hearth of gasification furnace 103, rubbish residue is piled up formation windrow at transition falls slag section 109 and is sealed, the stove chamber inner combustion state temperature making gasification furnace 103 is stabilized to more than 850 DEG C, moving hearth 105 work of incinerator 104 exports the rubbish residue after burning.

Each technological parameter (negative pressure, thickness of feed layer etc. in pusher speed, fire grate speed, wind-warm syndrome, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature, stove) of step C, regulation gasification furnace 103, incinerator 104 and circulation air feed system 2, rubbish is gradually gasified by gasification furnace 103, gasification temperature is stable between 700-800 DEG C, making the stable high-temperature flue gas produced containing 10%-20% synthesis gas of gasification furnace 103, gasification furnace 103 vaporized state stably carries out low temperature, middle temperature or high-temperature gasification.Make incinerator 104 fired state temperature stabilization to more than 850 DEG C, it is achieved rubbish continuous gasification burning disposal；Each technological parameter of cyclone combustion chamber 3 need to be regulated simultaneously, make cyclone combustion chamber 3 the 3rd exhanst gas outlet 304 temperature stabilization to more than 850 DEG C.

Step D, need to overhaul or during blowing out, stopping feeds intake, regulation gasification furnace 103, incinerator 104 and the technological parameter of circulation air feed system 2, gasification furnace 103 is made to be gradually restored to fired state, after rubbish and rubbish residue burn, close stoker fired grate formula refuse gasification incinerator 1 and circulation air feed system 2.Each technological parameter of cyclone combustion chamber 3 need to be regulated simultaneously, make gasification furnace 103 be gradually restored to fired state.

Finally illustrate is, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, although the utility model being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from the utility model claims limited range.

Claims (10)

1. utilizing refuse gasification to burn the boiler power generation system of synthesis gas, including steam turbine and the generator that is connected with turbine power, described steam turbine includes high-pressure cylinder, intermediate cylinder, low-pressure cylinder, it is characterised in that:

nullDescribed high-pressure cylinder、First order steam trap is set between intermediate cylinder、First order high pressure vapour vapour heater，The described input of first order steam trap is connected by pipeline with the output of high-pressure cylinder，The steam output end of first order steam trap is connected by pipeline with the input that is heated of first order high pressure vapour vapour heater，Being connected by pipeline with the steam input of intermediate cylinder by hot output terminal of described first order high pressure vapour vapour heater，Intermediate cylinder、Second level steam trap is set between low-pressure cylinder、Second level high pressure vapour vapour heater，The input of described second level steam trap is connected by pipeline with intermediate cylinder output，The steam output end of second level steam trap is connected by pipeline with the input that is heated of second level high pressure vapour vapour heater，Being connected by pipeline with the steam input of low-pressure cylinder by hot output terminal of described second level high pressure vapour vapour heater；

The steam output end of low-pressure cylinder is sequentially connected with condenser by pipeline, water pump, low pressure vapor heater, oxygen-eliminating device, booster water pump, high pressure steam water heater, the input that is heated of described low pressure vapor heater is connected with water pump, being connected with oxygen-eliminating device by hot output terminal of low pressure vapor heater, the input of oxygen-eliminating device is provided with moisturizing pipeline, the input that is heated of described high pressure steam water heater is connected with booster water pump, high pressure steam water heater by hot output terminal export boiler feed water, the water output of described first order steam trap, the water output of second level steam trap connects the input of oxygen-eliminating device respectively by pipeline；

Also include high steam input pipe, middle pressure steam input pipe, medium pressure steam input pipe connects the input of intermediate cylinder, described high steam input pipe connects the input of high-pressure cylinder respectively by pipeline, the heating input of first order high pressure vapour vapour heater, the heating input of second level high pressure vapour vapour heater, the hot output terminal that adds of first order high pressure vapour vapour heater connects the heating input of high pressure steam water heater, the hot output terminal that adds of high pressure steam water heater connects the input of oxygen-eliminating device, the hot output terminal that adds of second level high pressure vapour vapour heater connects the heating input of low pressure vapor heater, the hot output terminal that adds of low pressure vapor heater connects the input of oxygen-eliminating device.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 1, it is characterized in that: described high-pressure cylinder is provided with the first steam and takes pipe, first steam takes pipe and takes steam to the output of high-pressure cylinder, first steam takes the heating input of the output connection high pressure steam water heater of pipe, medium pressure cylinder is provided with the second steam and takes pipe, described second steam takes pipe and takes steam to the output of intermediate cylinder, and the second steam takes the heating input of the output connection low pressure vapor heater of pipe.

nullThe boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 1，It is characterized in that: also include boiler body，Described boiler body has cyclone combustion chamber、Furnace chamber a、Furnace chamber b，The lower end of described cyclone combustion chamber arranges smoke inlet，Cyclone combustion chamber upper end is the 3rd exhanst gas outlet，3rd exhanst gas outlet of cyclone combustion chamber upper end connects with the upper end of furnace chamber a，Described furnace chamber a、The lower end connection of furnace chamber b，The upper end of described furnace chamber b arranges waste gas outlet，Described cyclone firing is indoor circumferentially arranged with water-cooling wall ringwise，It is provided with superheater I in described furnace chamber a、Superheater II，Described superheater I is positioned at the top of superheater II，It is provided with evaporimeter in furnace chamber b，The top of boiler body arranges drum，Described cyclone combustion chamber、Furnace chamber a、Furnace chamber b is respectively positioned on below drum，Described drum is provided with carbonated drink import，Carbonated drink import is connected by hot output terminal by pipeline and high pressure steam water heater，Water separator it is provided with in drum，For separating steam water interface，Drum connects the water inlet of water-cooling wall by the first down-comer，For exporting the isolated water of water separator，Drum connects the water inlet of evaporimeter by the second down-comer，For exporting the isolated water of water separator，Described water-cooling wall、The venthole of evaporimeter connects the air intake of drum respectively by steam pipe，For the high-temperature steam that refluxes，The saturated vapor outlet of described drum connects superheater I by pipeline respectively、The air intake of superheater II，For by the high-temperature steam input superheater of backflow，The venthole of described superheater I connects high steam input pipe output high pressure superheated steam，The venthole connection middle pressure steam input pipe output of described superheater II presses through vapours.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 3, it is characterized in that: described boiler body has furnace chamber c, the upper end of described furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, the lower end of furnace chamber c arranges Waste gas outlet, it is provided with economizer in described furnace chamber c, the water inlet of described economizer is connected by hot output terminal with high pressure steam water heater, the delivery port of described economizer and the carbonated drink inlet communication of drum.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 4, it is characterized in that: the Waste gas outlet of furnace chamber c connects flue gas purification system, aeration tower that described flue gas purification system includes being sequentially connected in series along discharge directions, deduster, air-introduced machine, chimney.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 3, it is characterized in that: also include the gasification furnace of stoker fired grate formula refuse gasification incinerator, incinerator and circulation air feed system thereof, can seal or connect between gasification furnace and incinerator, the lower section of gasification furnace siege and incinerator siege be respectively arranged below with at least one independent air compartment, the face arch of described gasification furnace, secondary it is respectively provided with for air port on rear arch, the vault of described gasification furnace arranges the first exhanst gas outlet, the smoke inlet of described cyclone combustion chamber is connected by pipeline and the first exhanst gas outlet, the vault of described incinerator arranges the second exhanst gas outlet；

nullDescribed circulation air feed system includes dust arrester、First blower fan、Second blower fan，The inlet end of described dust arrester is connected by pipeline and the second exhanst gas outlet，The outlet side of described dust arrester is connected by the inlet end of pipeline and the first blower fan，The outlet side of described first blower fan connects the house steward of the first manifold，The arm of described first manifold respectively with each air compartment of the lower section of gasification furnace moving hearth、Each secondary on gasification furnace is for the smoke inlet connection of air port and cyclone combustion chamber，The first regulation valve it is respectively provided with on each arm of described first manifold，The air inlet of described second blower fan and atmosphere，The gas outlet of described second blower fan connects the house steward of the second manifold，The arm of described second manifold respectively with incinerator moving hearth below each air compartment and the inlet end of dust arrester、Outlet side connects，The second regulation valve it is respectively provided with on each arm of described second manifold.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 6, it is characterized in that: described boiler body has furnace chamber c, the upper end of described furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, the lower end of furnace chamber c arranges Waste gas outlet, it is provided with air preheater in described furnace chamber c, the outlet side of described second blower fan connects the air inlet of air preheater, and the gas outlet of air preheater connects the house steward of the second manifold.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 6, it is characterized in that: described cyclone combustion chamber is provided with some combustion airs for air port, described some combustion airs supply air port between smoke inlet, the 3rd exhanst gas outlet, also include the 3rd manifold, the described house steward of the 3rd manifold connects with the gas outlet of the second blower fan, each arm of described 3rd manifold connects for air port with some combustion airs respectively, and each arm of the 3rd manifold is respectively provided with the 3rd regulation valve.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 6, it is characterised in that: being provided with common slag notch below described furnace chamber a, furnace chamber b, this common slag notch connects with the burner hearth of gasification furnace.

The boiler power generation system utilizing refuse gasification to burn synthesis gas the most according to claim 6, it is characterised in that: the lower end of described cyclone combustion chamber is provided with the taper slag notch that radius from top to bottom diminishes, and this taper slag notch connects with the burner hearth of gasification furnace.