CN105588131A - Mechanical fire grate type rubbish gasification incinerator and dual-boiler energy-saving power generation system thereof - Google Patents

Abstract

The invention discloses a mechanical fire grate type rubbish gasification incinerator which is smaller in heat efficiency conversion loss and higher in heat recovery rate and a dual-boiler energy-saving power generation system of the mechanical fire grate type rubbish gasification incinerator. The mechanical fire grate type rubbish gasification incinerator comprises a gasification incinerator body, a boiler system, a circulation air supply system and a power generation system; the gasification incinerator body comprises a gasification boiler and a burning ash boiler which can be sealed or communicated; the boiler system comprises boiler bodies a and b, the boiler body a is provided with a cyclone burning chamber and boiler chambers a and b, the boiler body b is provided with a boiler chamber d and a cyclone dust removal chamber, water cooling walls are arranged in the cyclone burning chamber and the cyclone dust removal chamber, a superheater unit is arranged in the boiler chamber a, and an evaporator is arranged in the boiler chamber b; and a superheater unit and an evaporator are arranged in the boiler chamber d, steam pockets are arranged at the top ends of the two boiler bodies, a smoke inlet of the cyclone burning chamber is connected with a smoke outlet of the gasification incinerator body, and a smoke inlet of the cyclone dust removal chamber is connected with a smoke outlet of the burning ash boiler. The power generation system comprises a steam input pipe, a steam turbine and a power generator, and the steam input pipe is connected with the superheater units a and b and the steam turbine.

Description

Stoker fired grate formula refuse gasification incinerator and double boiler energy-saving power generation system thereof

Technical field

The invention belongs to solid waste incineration processing technology field, relate in particular to stoker fired grate formula refuse gasification incinerator and double boiler energy-saving power generation system thereof.

Background technology

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

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

In sum, typical gasification burning and boiler plant technology maturation, respectively have himself advantage, but in China's practical application, need the problem and shortage solving:

1. the characteristic such as, complicated component high for China's house refuse water content, the utilization of moving hearth, needs emphasis to consider to 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. along with being on the increase of refuse production, sanitary fill is as mountain, and garbage treatment quantity must be effectively improved, could meeting the market requirement.

3. in the face of strict pollutant emission requirement, secondary pollution control is the technical key problem that needs solution.

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

Existing incinerator is as following two patents 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, just be dried-burn-burn, the process of solid combustion release heat; In stove, thermal chemical reaction is taking oxidation reaction as main, and reduction reaction is auxiliary, easily produces secondary pollution; When rubbish burns in stove, cross oxygen quotient large, wind, Secondary Air infeed amount are large, and in flue gas, dust content is higher, larger on heat reclaiming system and smoke processing system impact, easily dust stratification, and exhaust gas volumn is larger, has reduced thermal conversion efficiency; There is no the gasification furnace and the incinerator that arrange separately, can only gradation disposal of refuse, cannot realize large-scale rubbish continuous gasification burning disposal, garbage treatment quantity is less.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of stoker fired grate formula refuse gasification incinerator and double boiler energy-saving power generation system thereof are provided. Its rubbish conveying capacity is stronger, and garbage treatment quantity is larger, can reduce thermal losses and improve heat exchanger effectiveness, and the organic efficiency of heat is higher, and can effectively reduce pollutant discharge amount.

The object of the present invention is achieved like this:

A kind of stoker fired grate formula refuse gasification incinerator and double boiler energy-saving power generation system thereof, comprise incinerator, steam generator system, circulation air feed system, electricity generation system,

Described incinerator comprises grate, and the feed hopper setting gradually along feedstock direction on grate, gasification furnace and incinerator, the rear of gasification furnace is the cinder notch that falls of gasification furnace, incinerator is positioned at the fall front lower place of cinder notch of gasification furnace, the rear of incinerator is the slag notch of incinerator, described grate is provided with garbage pusher device, described garbage pusher device is positioned at the below of feed hopper, for the rubbish in feed hopper is pushed in gasification furnace, the below of the below of gasification furnace moving hearth and incinerator moving hearth is respectively equipped with at least one air compartment independently arranging, described feed hopper, between gasification furnace, be provided with windrow seal section, in grate part between described gasification furnace and incinerator, leave the transition slag section that falls, the described transition slag section that falls is provided with residue pusher, for the rubbish residue falling in gasification furnace is pushed in incinerator, described gasification furnace, incinerator comprise respectively furnace shell, moving hearth, and the forward and backward side of described gasification furnace is respectively by fall slag section sealing of windrow seal section, transition, and described transition fall slag section isolation gasification furnace, incinerator make gasification furnace, incinerator separate, described gasification furnace, incinerator are respectively the shape that arches upward, secondary is set respectively 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 vault of described incinerator arranges the second exhanst gas outlet, is respectively equipped with igniting combustion supporting hole on described gasification furnace, incinerator,

Described steam generator system comprises boiler body a, boiler body b, described boiler body a has cyclone combustion chamber, furnace chamber a, furnace chamber b, the lower end of described cyclone combustion chamber arranges smoke inlet, the smoke inlet of cyclone combustion chamber is communicated with the first exhanst gas outlet, cyclone combustion chamber upper end is the 3rd exhanst gas outlet, 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 the 3rd exhanst gas outlet, the 3rd exhanst gas outlet of cyclone combustion chamber upper end is communicated with the upper end of furnace chamber a, described furnace chamber a, the lower end of furnace chamber b is communicated with, the upper end of described furnace chamber b arranges waste gas outlet, the indoor edge of described cyclone firing is circumferentially with ringwise water-cooling wall a, in described furnace chamber a, be provided with superheater a I, superheater a II, described superheater a I is positioned at the top of superheater a II, in furnace chamber b, be provided with evaporimeter a, the top of boiler body a arranges drum a, described cyclone combustion chamber, furnace chamber a, furnace chamber b is all positioned at drum a below, described drum a is provided with carbonated drink import, drum a separates steam water interface by water separator, the delivery port of drum a connects water-cooling wall a by pipeline respectively, the water inlet of evaporimeter a, be used for exporting the isolated water of water separator, described water-cooling wall a, the venthole of evaporimeter a connects respectively the air intake of drum a by steam pipe, be used for the high-temperature steam that refluxes, the saturated vapor outlet of described drum a connects superheater a I by pipeline respectively, the air intake of superheater a II, for the high-temperature steam refluxing being inputted to superheater a I, in superheater a II, the venthole output high pressure superheated steam of described superheater a I, in the venthole output of described superheater a II, press superheated steam,

Described boiler body b has cyclone dust removal chamber, furnace chamber d, the lower end of described cyclone dust collectors is communicated with the second exhanst gas outlet, the upper end of cyclone dust removal chamber is communicated with the upper end of furnace chamber d, the indoor edge of described cyclone dust removal is circumferentially with ringwise water-cooling wall b, in described furnace chamber d, be disposed with from top to bottom superheater b I, superheater b II, evaporimeter b, the top of boiler body b arranges drum b, described cyclone dust removal chamber, furnace chamber d is all positioned at drum b below, described drum b is provided with carbonated drink import, drum b separates steam water interface by water separator, the delivery port of drum b is by connecting water-cooling wall b by pipeline respectively, the water inlet of evaporimeter b, be used for exporting the isolated water of water separator, described water-cooling wall b, the venthole of evaporimeter b connects respectively the air intake of drum b by steam pipe, be used for the high-temperature steam that refluxes, the saturated vapor outlet of described drum b connects superheater b I by pipeline respectively, the air intake of superheater b II, for the high-temperature steam refluxing being inputted to superheater b I, in superheater b II, the venthole output high pressure superheated steam of described superheater b I, in the venthole output of described superheater b II, press superheated steam,

Described circulation air feed system comprises the first blower fan, the second blower fan, the inlet end of described the first blower fan is connected with the lower end of furnace chamber d by pipeline, the flue gas of discharging for extracting furnace chamber d, the outlet side of described the first blower fan is communicated with furnace chamber b by pipeline, the air inlet of described the second blower fan is communicated with atmosphere, the gas outlet of described the second blower fan connects respectively the first manifold, the house steward of the second manifold, the arm of described the first manifold is communicated with for air port with the each secondary on each air compartment and the gasification furnace of gasification furnace moving hearth below respectively, the arm of described the second manifold is communicated with for air port with each air compartment of incinerator moving hearth below and some combustion airs of cyclone combustion chamber respectively,

The generator that described electricity generation system comprises steam turbine and is connected with steam turbine power, described steam turbine comprises high-pressure cylinder, intermediate cylinder, low-pressure cylinder,

Described high-pressure cylinder, first order steam trap is set between intermediate cylinder, first order high pressure vapour vapour heater, the input of described 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, the hot output terminal that is subject to of described first order high pressure vapour vapour heater is connected by pipeline with the steam input of intermediate cylinder, 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, the hot output terminal that is subject to of described second level high pressure vapour vapour heater is connected by pipeline with the steam input of low-pressure cylinder,

The steam output end of low-pressure cylinder connects condenser successively 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, the hot output terminal that is subject to of low pressure vapor heater is connected with oxygen-eliminating device, 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, the hot output terminal that is subject to of high pressure steam water heater connects drum a by pipeline, the carbonated drink import of drum b, the water output of described first order steam trap, the water output of second level steam trap connects respectively the input of oxygen-eliminating device by pipeline,

Also comprise high steam input pipe, middle pressure steam input pipe, the input of described middle pressure steam input pipe connects superheater a II, the venthole of superheater b II, the output of middle pressure steam input pipe connects the input of intermediate cylinder, the input of described high steam input pipe connects superheater a I, the venthole of superheater b I, the output of described high steam input pipe connects respectively the input of high-pressure cylinder 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 heating input that adds hot output terminal connection high pressure steam water heater of first order high pressure vapour vapour heater, the input that adds hot output terminal connection oxygen-eliminating device of high pressure steam water heater, the heating input that adds hot output terminal connection low pressure vapor heater of second level high pressure vapour vapour heater, the input that adds hot output terminal connection oxygen-eliminating device of low pressure vapor heater,

Described high-pressure cylinder is provided with the first steam and gets pipe, the first steam is got pipe and is got steam to the output of high-pressure cylinder, the first steam is got the heating input of the output connection high pressure steam water heater of pipe, described intermediate cylinder is provided with the second steam and gets pipe, described the second steam is got pipe and is got steam to the output of intermediate cylinder, and the second steam is got the heating input of the output connection low pressure vapor heater of pipe; Also comprise high pressure vapour gas heat exchanger, low-pressure steam gas heat exchanger, the heat tunnel of described high pressure vapour gas heat exchanger is connected in the first steam by pipeline and gets between pipe, oxygen-eliminating device input, the heat tunnel of described low-pressure steam gas heat exchanger is connected in the second steam by pipeline and gets between pipe, oxygen-eliminating device input, the heated passage of low-pressure steam gas heat exchanger, the heated passage of high pressure vapour gas heat exchanger are series on the house steward of the first manifold, and described high pressure vapour gas heat exchanger is positioned at the downstream of low-pressure steam gas heat exchanger.

In order to regulate respectively the air quantity on each arm, preferably, on each arm of described the first manifold, the first control valve is set respectively, on each arm of described the second manifold, the second control valve is set respectively.

For the flue gas that furnace chamber b is discharged carries out further heat recovery, improve heat recovery efficiency, preferably, described boiler body a has furnace chamber c, and the upper end of described furnace chamber c is communicated with the waste gas outlet of furnace chamber b upper end, and the lower end of furnace chamber c arranges Waste gas outlet.

Further, in described furnace chamber c, be provided with air preheater, the outlet side of described the second blower fan connects the air inlet of air preheater, and the gas outlet of air preheater connects the house steward of the first manifold, the second manifold.

Further, in described furnace chamber c, be provided with economizer, the water inlet of described economizer is communicated with the delivery port of booster water pump, and the delivery port of described economizer is communicated with the carbonated drink import of drum a, drum b by pipeline respectively.

For the flue gas that furnace chamber c is discharged carries out harmless treatment, further, the Waste gas outlet of described furnace chamber c connects flue gas purification system, and described flue gas purification system comprises aeration tower, deduster, air-introduced machine, the chimney of connecting successively along discharge directions.

In order to discharge the waste residue that in furnace chamber a, furnace chamber b, flue gas deposition produces, and prevent that waste residue effusion from producing pollution, preferably, described furnace chamber a, furnace chamber b below is provided with common slag notch, and this common slag notch is communicated with the burner hearth of gasification furnace.

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

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

In order to prevent altering wind between gasification furnace, incinerator, preferably, described transition falls in slag section and is provided with isolating door to be opened/closed, and described isolating door is for cutting off gasification furnace, incinerator.

Owing to having adopted technique scheme, the present invention has following beneficial effect:

The gasification furnace of incinerator, incinerator divide and are arranged, the vault of gasification furnace arranges the first exhanst gas outlet, the vault of incinerator arranges the second exhanst gas outlet, be beneficial to according to the difference of flue gas quality smoke treatment respectively, be conducive to flue gas ash removal simultaneously, the more flue gas of high-quality can be provided, make the utilization rate of flue gas higher, the waste residue of discharge still less.

The first blower fan extracts the waste gas of discharging from furnace chamber d, is fed in furnace chamber b, makes full use of the waste heat that boiler body b has not utilized, and also reaches by cyclone dust removal chamber the object that dedusting prevents that flue dust from overflowing; The waste gas that the second blower fan is discharged from furnace chamber c by air preheater utilization, makes full use of the waste heat that boiler body a has not utilized. The wind that the second blower fan bloats provides wind, Secondary Air by the first manifold for gasification furnace, make rubbish in gasification furnace produce gasification, gasification furnace contains the flue gas of a certain amount of synthesis gas, discharges from the first exhanst gas outlet, enter cyclone combustion chamber processing links, cyclone combustion chamber provides high-temperature flue gas. The wind that the second blower fan bloats provides wind by the second manifold one time for incinerator, and for cyclone combustion chamber provides combustion air, incinerator residue is fully burnt, and the indoor synthetic flue gas of cyclone firing fully burns. The stoker fired grate formula refuse gasification incinerator garbage treatment quantity of this structure is large, that the rubbish bed of material can experience on stoker fired grate is dry, the stage that burns of gasification and residue, adapt to the characteristics such as China's house refuse water content is high, complicated component, improve the energy conversion efficiency in garbage processing procedure and reduced pollutant discharge amount in flue gas, effectively prevent secondary pollution, and can realize large-scale rubbish continuous gasification burning disposal, ensure that refuse gasification burns effect and the hot burn decrement rate of lime-ash, relatively reduce thermal losses and improve heat exchanger effectiveness, having improved the thermal efficiency.

This steam generator system has adopted the structure of two boilers, the synthetic flue gas that first exhanst gas outlet that fully burns discharges, and the heat that utilizes smoke combustion to discharge, and make full use of the heat that the second exhanst gas outlet discharges, still less, heat recovery efficiency is higher for hot slippages. Synthesis gas is more abundant in cyclone firing Indoor Combustion, and the temperature that burning produces is higher, and annular water-cooling wall a is arranged on cyclone combustion chamber, has relatively reduced thermal losses and has improved 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, simultaneously, to tangential air-supplied combustion-supporting flammable synthesis gas in cyclone combustion chamber, flue gas passes through cyclone combustion chamber, furnace chamber a, furnace chamber b, economizer and air preheater successively. Recycling economizer preheating condensed water, preheating condensed water enters two boilers, condensed water heats in two water-cooling walls and two evaporimeters, form saturated vapor and enter two drums, after carbonated drink separates, saturated vapor enters two superheaters, again add the output of thermosetting superheated steam, can be used for generating, heat supply, heating etc. The present invention is novel, utilizes cyclone-burning method, has reduced 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, has realized synthesis gas burning disposal and heat recovery and utilization after rubbish continuous gasification.

The steam that condenser can not utilize steam turbine is all converted to water, and absorb steam discharge heat, the Main Function of oxygen-eliminating device is exactly to remove oxygen and other gas in boiler feedwater with it, ensure the quality of feedwater, booster water pump can improve hydraulic pressure, ensures the water supply capacity to water input system, and electricity generation system is by using the low-grade steam of high-grade Steam Heating and condensed water, improve utilization rate of waste heat, reduce thermal losses. Heat exchanger can make full use of the wind that remaining waste-heat the second blower fan of steam output device bloats.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

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.

Reference numeral

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 is the transition slag section that falls, 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 for secondary is for air port, and 116 is slag notch, and 117 is the cinder notch that falls;

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;

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

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

5 is boiler body b, and 501 is furnace chamber d, and 502 is cyclone dust removal chamber, and 503 is water-cooling wall b, and 504 is superheater b I, and 507 is superheater b II, and 505 is evaporimeter b, and 506 is drum b;

6 is electricity generation system, 601 is high-pressure cylinder, 602 is intermediate cylinder, 603 is low-pressure cylinder, 604 is first order steam trap, 605 is first order high pressure vapour vapour heater, 606 is second level steam trap, 607 is second level high pressure vapour vapour heater, 608 is condenser, 609 is water pump, 610 is oxygen-eliminating device, 611 is booster water pump, 612 is moisturizing pipeline, 613 is generator, 614 is low pressure vapor heater, 615 is high pressure steam water heater, 616 is high steam input pipe, 617 is middle pressure steam input pipe, 618 is that the first steam is got pipe, 619 is that the second steam is got pipe, 620 is high pressure vapour gas heat exchanger, 621 is low-pressure steam gas heat exchanger.

Detailed description of the invention

Referring to Fig. 1 to Fig. 6, be a kind of preferred embodiment of stoker fired grate formula refuse gasification incinerator and double boiler energy-saving power generation system thereof, comprise incinerator 1, steam generator system, circulation air feed system, electricity generation system 6.

Referring to Fig. 6, for stoker fired grate formula refuse gasification incinerator, comprise grate 101, and the feed hopper 102 setting gradually along feedstock direction on grate 101, gasification furnace 103 and incinerator 104, the rear of incinerator 104 is the slag notch 116 of incinerator 104, and described incinerator 104 is provided with cinder notch 117, the slag notch 116 of described incinerator 104 be positioned at incinerator fall cinder notch 117 under, this sealing structure is effective, can effectively hold minimizing pollutant discharge amount. Gasification furnace 103 is mainly that the charcoal part that contains of rubbish is gasified, and discharges flammable gasification flue gas and rubbish residue, and incinerator 104 mainly carries out the burning processing of carbon residue, and discharges innoxious lime-ash. The siege 105 of gasification furnace 103 and incinerator 104 all adopts the stoker fired grate formula moving hearth 105 of segmentation drive, the fire grate of stoker fired grate formula moving hearth 105 is to be forward lapped by moving grate plate and fixed grate plate, collect and form alternately, adjacent many groups moving grate plate connects by pull bar, adopts a set of drive unit 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, 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 below of feed hopper 102, for the rubbish in feed hopper 102 is pushed in gasification furnace 103, the below of the below of gasification furnace 103 moving hearths 105 and incinerator 104 moving hearths 105 is respectively equipped with at least one air compartment 107 independently arranging, in the present embodiment, the fire grate corresponding with an air compartment 107 of gasification furnace 103 first halfs, drive unit, as the dryer section of gasification furnace 103 sieges 105, fire grate corresponding to an air compartment 107 latter half of with gasification furnace 103, drive unit is as the gasification section of gasification furnace 103 sieges 105. the dryer section of gasification furnace 103 sieges 105, gasification section can adopt respectively 1-2 independently air compartment 107 air feeds, also can adopt respectively 3-4 independently air compartment 107 air feeds. certainly, fire grate, drive unit and air compartment 107 also can not corresponding settings, better regulate the bed of material on moving hearth 105 to move and air distribution relation. incinerator 104 can adopt 1-4 independently air compartment 107 air feeds, burns rear lime-ash and gets rid of from slag notch, enters next step treatment process.

Between described feed hopper 102, gasification furnace 103, be provided with windrow seal section 108, garbage pusher device 106 works enter position in windrow seal section 108, garbage raw material is put into and is fallen from feed hopper 102, garbage pusher device 106 retreats, advance, pusher forms windrow at windrow seal section 108 back and forth again, makes gasification furnace 103 entrances in windrow sealing state, strengthen gasification furnace 103 sealing effectiveness, solve garbage pusher device 106 and the easy gas leakage problem of feed hopper 102. While needing complete prepurging to dispose all rubbish, garbage pusher device 106 is forward impelling half stroke again, and rubbish is pushed in gasification furnace 103 completely, makes gasification furnace 103 entrances lose windrow sealing effectiveness. In grate 101 parts between described gasification furnace 103 and incinerator 104, leave the transition slag section 109 that falls, the described transition slag section 109 that falls is provided with residue pusher 110, for the rubbish residue falling in gasification furnace 103 is pushed in incinerator 104, transition falls slag section 109 can be in windrow sealing state in the time piling up rubbish residue, strengthen gasification furnace 103 sealing effectiveness, solve the problem of wind of going here and there between gasification furnace 103, incinerator 104. In the present embodiment, described transition falls in slag section 109 and is provided with isolating door 111 to be opened/closed, and described isolating door 111 is for cutting off gasification furnace 103, incinerator 104. Maybe need to control while altering wind between gasification furnace 103 and incinerator at the furnace lifting initial stage, close isolating door 111, stacking a certain amount of residue when the slag section that falls forms after windrow sealing, can keep isolating door 111 to open, coordinate to use with the residue pusher 110 that below arranges, to realize rubbish continuous gasification burning disposal.

The upper end of described gasification furnace 103, the upper end of incinerator 104 are respectively the shape that arches upward, and the face arch of described gasification furnace 103 is straight structure, or the face arch of gasification furnace 103 is the rear end structure that is inclined upwardly. 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, on the arching upward of the arching upward of described gasification furnace 103 upper ends, incinerator 104 upper ends, is respectively equipped with igniting combustion supporting hole 114. Gasification flue gas is got rid of from the first exhanst gas outlet 112, the second exhanst gas outlet 113, and gasification furnace 103 furnace cavities, compared with traditional incinerator, reduce relatively; Forward and backward arch and moving hearth 105 relative positions diminish, and have reduced the space that incinerator takies, and are also easier to insulation, have reduced the amount of leakage of heat, are conducive to rubbish and fully gasify. Secondary is set respectively for air port 115 on the face arch of described gasification furnace 103, rear arch.

Referring to Fig. 1 to Fig. 3, described steam generator system comprises boiler body a4, boiler body b5, described boiler body a4 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 communicated with the first exhanst gas outlet 112 of gasification furnace 103 by pipeline, cyclone combustion chamber 3 upper ends are the 3rd exhanst gas outlet 304, described smoke inlet 303, the 3rd exhanst gas outlet 304 is positioned at the opposition side of cyclone combustion chamber 3 circle wall, the top of cyclone combustion chamber 3 arranges igniting combustion supporting hole, combustion chamber 301. discharge from the 3rd exhanst gas outlet 304 after the interior abundant mixing of cyclone combustion chamber 3, burning in order to make flue gas, combustion air, described cyclone combustion chamber 3 is provided with some combustion airs for air port 305, and described some combustion airs supply air port 305 between smoke inlet 303, the 3rd exhanst gas outlet 304. described smoke inlet 303, the 3rd exhanst gas outlet 304, combustion air radially or tangentially arrange along cyclone combustion chamber 3 circle wall for air port 305. the 3rd exhanst gas outlet 304 of cyclone combustion chamber 3 upper ends is communicated with the upper end of furnace chamber a402, the lower end of described furnace chamber a402, furnace chamber b403 is communicated with, 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 diminishes from top to bottom, and this taper slag notch 302 is communicated with the burner hearth of gasification furnace 103. described furnace chamber a402, furnace chamber b403 below is provided with common slag notch, and this common slag notch is communicated with the burner hearth of gasification furnace 103. in the present embodiment, the slag notch that this is common and taper slag notch 302 are all communicated with the afterbody changeover portion of gasification furnace 103 burner hearths.

Described cyclone combustion chamber 3 is interior is circumferentially with ringwise water-cooling wall a405 along inwall, in described furnace chamber a, be provided with superheater a I 406, superheater a II 409, described superheater a I 406 is positioned at the top of superheater a II 409, in furnace chamber b403, be provided with evaporimeter a407, the top of boiler body 4 arranges drum a408, described cyclone combustion chamber 3, furnace chamber a402, furnace chamber b403 is all positioned at drum a408 below, described drum a408 is provided with carbonated drink import, be used for inputting steam water interface, in drum a408, be provided with water separator, for separating of steam water interface, the delivery port of drum a408 is by connecting water-cooling wall a405 by pipeline respectively, the water inlet of evaporimeter a407, be used for exporting the isolated water of water separator, described water-cooling wall a405, the venthole of evaporimeter a407 connects respectively the air intake of drum a408 by steam pipe, be used for the high-temperature steam that refluxes, the saturated vapor outlet of described drum a connects superheater a I 406 by pipeline respectively, the air intake of superheater a II 409, for the high-temperature steam refluxing being inputted to superheater a I 406, in superheater a II 409, the venthole output high pressure superheated steam of described superheater a I 406, in the venthole output of described superheater a II 409, press superheated steam,

Described boiler body b5 has cyclone dust removal chamber 502, furnace chamber d501, the lower end of described cyclone dust collectors is communicated with the second exhanst gas outlet, the upper end of cyclone dust removal chamber 502 is communicated with the upper end of furnace chamber d501, 502 interior edges, described cyclone dust removal chamber are circumferentially with ringwise water-cooling wall b503, in described furnace chamber d, be disposed with from top to bottom superheater b I 504, superheater b II 507, evaporimeter b, the top of boiler body b5 arranges drum b506, described cyclone dust removal chamber 502, furnace chamber d501 is all positioned at drum b506 below, described drum b506 is provided with carbonated drink import, drum b506 separates steam water interface by water separator, the delivery port of drum b506 is by connecting water-cooling wall b503 by pipeline respectively, the water inlet of evaporimeter b505, be used for exporting the isolated water of water separator, described water-cooling wall b503, the venthole of evaporimeter b505 connects respectively the air intake of drum b506 by steam pipe, be used for the high-temperature steam that refluxes, the saturated vapor outlet of described drum b connects superheater b I 504 by pipeline respectively, the air intake of superheater b II 507, for the high-temperature steam refluxing being inputted to superheater b I 504, in superheater b II 507, the venthole output high pressure superheated steam of described superheater b I 504, in the venthole output of described superheater b II 507, press superheated steam.

Referring to Fig. 4, the generator 613 that electricity generation system 6 comprises steam turbine and is connected with steam turbine power, described steam turbine comprises 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, the hot output terminal that is subject to of described first order high pressure vapour vapour heater 605 is connected by pipeline with the steam input of intermediate cylinder 602, 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 outputs, 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, the hot output terminal that is subject to of described second level high pressure vapour vapour heater 607 is connected by pipeline with the steam input of low-pressure cylinder 603.

The steam input of low-pressure cylinder 603 connects condenser 608 successively 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, the hot output terminal that is subject to of low pressure vapor heater 614 is connected with oxygen-eliminating device 610, 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, the hot output terminal that is subject to of high pressure steam water heater 615 is exported boiler feed water, the water output of described first order steam trap 604, the water output of second level steam trap 606 connects respectively the input of oxygen-eliminating device 610 by pipeline.

Also comprise high steam input pipe, middle pressure steam input pipe, the input of described middle pressure steam input pipe 617 connects superheater a II 409, the venthole of superheater b II 507, the output of middle pressure steam input pipe connects the input of intermediate cylinder, the input of described high steam input pipe connects superheater a I 406, the venthole of superheater b I 504, described high steam input pipe 616 connects respectively the input of high-pressure cylinder 601 by pipeline, the heating input of first order high pressure vapour vapour heater 605, the heating input of second level high pressure vapour vapour heater 607, the heating input that adds hot output terminal connection high pressure steam water heater 615 of first order high pressure vapour vapour heater 605, the input that adds hot output terminal connection oxygen-eliminating device 610 of high pressure steam water heater 615, the heating input that adds hot output terminal connection low pressure vapor heater 614 of second level high pressure vapour vapour heater 607, the input that adds hot output terminal connection oxygen-eliminating device 610 of low pressure vapor heater 614.

Described high-pressure cylinder 601 is provided with the first steam and gets pipe 618, the first steam is got pipe 618 and is got steam to the output of high-pressure cylinder 601, the first steam is got pipe 618 output connects high pressure steam water heater 615 heating input by pipeline, described intermediate cylinder 602 is provided with the second steam and gets pipe 619, the second steam is got pipe and 619 is got steam to the output of intermediate cylinder 602, and the output that the second steam is got pipe 619 connects the heating input of low pressure vapor heater 614 by pipeline. Also comprise high pressure vapour gas heat exchanger 620, low-pressure steam gas heat exchanger 621, the heated passage of described high pressure vapour gas heat exchanger 620 is connected in the first steam by pipeline and gets between pipe 618, oxygen-eliminating device 610 inputs, the heated passage of described low-pressure steam gas heat exchanger 621 is connected in the second steam by pipeline and gets between pipe 612, oxygen-eliminating device 610 inputs, the heat tunnel of low-pressure steam gas heat exchanger 621, the heat tunnel of high pressure vapour gas heat exchanger 620 are series on the house steward of the first manifold, and described high pressure vapour gas heat exchanger 620 is positioned at the downstream of low-pressure steam gas heat exchanger 621.

Referring to Fig. 1, described circulation air feed system comprises the first blower fan 202, the second blower fan 203, the inlet end of described the first blower fan 202 is connected with the lower end of furnace chamber d by pipeline, the outlet side of described the first blower fan 202 is communicated with furnace chamber b by pipeline, the air inlet of described the second blower fan 203 is communicated with atmosphere, the gas outlet of described the second blower fan 203 connects respectively the first manifold 204, the house steward of the second manifold 205, the arm of described the first manifold 204 is communicated with for air port with the each secondary on each air compartment and the gasification furnace of gasification furnace moving hearth below respectively, the arm of described the second manifold 205 is communicated with for air port with each air compartment of incinerator moving hearth below and some combustion airs of cyclone combustion chamber respectively, on each arm of described the first manifold 204, the first control valve is set respectively, on each arm of described the second manifold 205, the second control valve is set respectively.

Referring to Fig. 1, Fig. 5, in the present embodiment, the upper end of described furnace chamber c404 is communicated with the waste gas outlet of furnace chamber b403 upper end, the lower end of furnace chamber c404 arranges Waste gas outlet, in described furnace chamber c404, be provided with economizer 418, the water inlet of described economizer 418 is communicated with the delivery port of booster water pump 416, and the delivery port of described economizer 418 is communicated with the carbonated drink import of drum a408. The Waste gas outlet of furnace chamber c404 connects flue gas purification system 419, and described flue gas purification system 419 comprises aeration tower 420, deduster 421, air-introduced machine 422, the chimney 423 of connecting successively along discharge directions. In described furnace chamber c, be provided with air preheater, the outlet side of described the second blower fan 203 connects the air inlet of air preheater, and the gas outlet of air preheater connects the house steward of the first manifold 204, the second manifold 205.

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

Origin of heat high-temperature flue gas after residual burning after refuse gasification that boiler body b reclaims, flue gas enters cyclone dust removal chamber, tangentially enters, tangentially outlet, flue gas passes through cyclone dust removal chamber, furnace chamber d successively, then by high-temperature blower, flue gas is introduced to furnace chamber b.

Recycling economizer preheating condensed water, preheating condensed water enters boiler a and boiler b, condensed water heats in water-cooling wall and evaporimeter, form saturated vapor and enter drum, after carbonated drink separates, saturated vapor enters high-pressure superheater and middle pressure superheater, again add the output generating of thermosetting superheated steam, also can heat supply, heating etc.

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

In high-pressure cylinder, get high steam after steam and first order high pressure vapour vapour heater use and collect and enter high pressure steam water heater and high pressure vapour hot-air heater, after heating-condensing water and air, form condensed water and return oxygen-eliminating device; In intermediate cylinder, get high steam after steam and second level high pressure vapour vapour heater use and collect and enter low pressure vapor heater and low-pressure steam hot-air heater, after heating-condensing water and air, form condensed water and return oxygen-eliminating device; In steam-water separator, isolated condensed water returns oxygen-eliminating device.

Low-pressure cylinder steam (vapor) outlet connects condenser, and steam enters low pressure vapor heater by water pump pressurization after condensation, and the condensed water after heating forms and enters oxygen-eliminating device; After deoxygenation, the pressurization of utilization of condensed water booster water pump, feeds high pressure steam water heater, and the condensed water of heating enters economizer and again heats, then enters boiler part.

With the low-grade steam of high-grade Steam Heating, condensation water and air, improve utilization rate of waste heat, reduce loss.

The waste disposal method of circulation air feed system after to stoker fired grate formula refuse gasification incinerator air feed, the method is carried out according to the following steps:

Steps A, close the gate that stoker fired grate formula refuse gasification incinerator 1 and atmosphere ventilate, start mechanical grate-type refuse gasification incinerator 1, garbage raw material is dropped into feed hopper 102, garbage pusher device 106 pusher back and forth, the garbage raw material falling from feed hopper 102 is pushed to feed hopper 102, windrow seal section 108 between gasification furnace 103, make windrow seal section 108 form windrow sealing state, unnecessary rubbish falls into the moving hearth 105 of gasification furnace 103, the moving hearth 105 of gasification furnace 103 is worked, rubbish is conveyed into the transition slag section 109 that falls, residue pusher 110 pusher back and forth, the rubbish that transition is fallen in slag section 109 pushes in incinerator 104, the moving hearth 105 of incinerator 104 conveying garbage of working, until rubbish is at gasification furnace 103, the moving hearth 105 of incinerator 104 is accumulated to required thickness: 0.6-0.8m, , when baker, the rubbish of piling up can be protected 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, communicate with the burner hearth of gasification furnace 103 and incinerator 104 respectively by the igniting combustion supporting hole 114 of gasification furnace 103 and incinerator 104 with start-up burner, under the effect of start-up burner, gasification furnace 103 and incinerator 104 are carried out to furnace lifting, baker, treat that this process stabilization completes, make gasification furnace 103 and incinerator 104 burner hearths reach predetermined temperature 600-700 DEG C, the object of baker is in order to remove Natural Water and the crystallization water in lining, so as not in the time go into operation because furnace temperature rises too soon, moisture content is a large amount of to expand to cause body of heater spalling, bubbling or be out of shape even furnace wall and collapses, and affects intensity and the service life of heating furnace furnace wall.

Step B, start and regulate circulation air feed system 2, regulate gasification furnace 103, technological parameter (the pusher speed of incinerator 104 and circulation air feed system 2, fire grate speed, a 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 conveying garbage of working, rubbish starts to burn in the burner hearth of gasification furnace 103, rubbish residue is piled up and is formed windrows sealings at transition slag section 109 places that fall, more than making the stove chamber inner combustion state temperature stabilization to 850 DEG C of gasification furnace 103, rubbish residue after the moving hearth 105 work outputs of incinerator 104 burn.

Step C, regulate 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 an air quantity, furnace temperature, stove) of gasification furnace 103, incinerator 104 and circulation air feed system 2, gasification furnace 103 gasifies to rubbish gradually, gasification temperature is stabilized between 700-800 DEG C, make the stable high-temperature flue gas producing containing 10%-20% synthesis gas of gasification furnace 103, gasification furnace 103 vaporized state are stable carries out low temperature, middle temperature or high-temperature gasification and all can. More than making incinerator 104 fired state temperature stabilizations to 850 DEG C, realize rubbish continuous gasification burning disposal; Need regulate each technological parameter of cyclone combustion chamber 3, more than making cyclone combustion chamber 3 the 3rd exhanst gas outlet 304 temperature stabilizations to 850 DEG C simultaneously.

Step D, need maintenance or when blowing out, stop feeding intake, regulate the technological parameter of gasification furnace 103, incinerator 104 and circulation air feed system 2, make gasification furnace 103 return to gradually fired state, after rubbish and rubbish residue burn, close stoker fired grate formula refuse gasification incinerator 1 and circulation air feed system 2. Need regulate each technological parameter of cyclone combustion chamber 3 simultaneously, make gasification furnace 103 return to gradually fired state.

Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the claims in the present invention book limited range.

Claims (10)

1. stoker fired grate formula refuse gasification incinerator and a double boiler energy-saving power generation system thereof, comprise gasificationIncinerator, steam generator system, circulation air feed system, electricity generation system, is characterized in that:

Described incinerator comprises grate, and the feed hopper setting gradually along feedstock direction on grate,Gasification furnace and incinerator, what the rear of gasification furnace was gasification furnace fall cinder notch, incinerator is positioned at the gasification furnace slag that fallsThe front lower place of mouth, the slag notch that the rear of incinerator is incinerator, described grate is provided with garbage pusher device,Described garbage pusher device is positioned at the below of feed hopper, for the rubbish in feed hopper is pushed in gasification furnace,The below of the below of gasification furnace moving hearth and incinerator moving hearth is respectively equipped with at least one and independently establishesAn air compartment of putting, is provided with windrow seal section, described gasification furnace and combustion between described feed hopper, gasification furnaceIn grate part between cinder stove, leave the transition slag section that falls, the described transition slag section that falls is provided with residue pusher,For the rubbish residue falling in gasification furnace is pushed in incinerator; Described gasification furnace, incinerator wrap respectivelyDraw together furnace shell, moving hearth, the forward and backward side of described gasification furnace is respectively by windrow seal section, the transition slag that fallsSection sealing, described transition fall slag section isolation gasification furnace, incinerator, make gasification furnace, incinerator separate;Described gasification furnace, incinerator are respectively the shape that arches upward, and on the face arch of described gasification furnace, rear arch, arrange respectively twoInferior to air port, the vault of described gasification furnace arranges the first exhanst gas outlet, and the vault of described incinerator arranges theTwo exhanst gas outlets, are respectively equipped with igniting combustion supporting hole on described gasification furnace, incinerator;

Described steam generator system comprises boiler body a, boiler body b, and described boiler body a has whirlwind combustionBurn chamber, furnace chamber a, furnace chamber b, the lower end of described cyclone combustion chamber arranges smoke inlet, cyclone combustion chamberSmoke inlet is communicated with the first exhanst gas outlet, and cyclone combustion chamber upper end is the 3rd exhanst gas outlet, described whirlwindCombustion chamber is provided with some combustion airs for air port, and described some combustion airs are positioned at smoke inlet, for air portBetween three exhanst gas outlets, the 3rd exhanst gas outlet of cyclone combustion chamber upper end is communicated with the upper end of furnace chamber a, instituteThe lower end of stating furnace chamber a, furnace chamber b is communicated with, and the upper end of described furnace chamber b arranges waste gas outlet, described whirlwind combustionBurn indoor edge and be circumferentially with ringwise water-cooling wall a, in described furnace chamber a, be provided with superheater a I, overheatedDevice a II, described superheater a I is positioned at the top of superheater a II, is provided with evaporimeter a in furnace chamber b,The top of boiler body a arranges drum a, and described cyclone combustion chamber, furnace chamber a, furnace chamber b are all positioned at drumA below, described drum a is provided with carbonated drink import, and drum a separates steam-water mixing by water separatorThing, the delivery port of drum a connects respectively the water inlet of water-cooling wall a, evaporimeter a by pipeline, for defeatedGo out the isolated water of water separator, the venthole of described water-cooling wall a, evaporimeter a passes through respectively steam pipeConnect the air intake of drum a, for the high-temperature steam that refluxes, the saturated vapor outlet of described drum a respectivelyConnect the air intake of superheater a I, superheater a II by pipeline, for the high-temperature steam refluxing is inputtedIn superheater a I, superheater a II, the venthole output high pressure superheated steam of described superheater a I, instituteState in the venthole output of superheater a II and press superheated steam;

Described boiler body b has cyclone dust removal chamber, furnace chamber d, the lower end of described cyclone dust collectors and secondExhanst gas outlet is communicated with, and the upper end of cyclone dust removal chamber is communicated with the upper end of furnace chamber d, and described cyclone dust removal is indoorAlong being circumferentially with ringwise water-cooling wall b, in described furnace chamber d, be disposed with from top to bottom superheater b I,Superheater b II, evaporimeter b, the top of boiler body b arranges drum b, described cyclone dust removal chamber, stoveChamber d is all positioned at drum b below, and described drum b is provided with carbonated drink import, and drum b separates by carbonated drinkDevice separates steam water interface, and the delivery port of drum b is by connecting water-cooling wall b, evaporation by pipeline respectivelyThe water inlet of device b, for exporting the isolated water of water separator, described water-cooling wall b, evaporimeter bVenthole connect respectively the air intake of drum b by steam pipe, for the high-temperature steam that refluxes, described drum bSaturated vapor outlet connects respectively the air intake of superheater b I, superheater b II by pipeline, for generalThe high-temperature steam refluxing is inputted in superheater b I, superheater b II, and the venthole of described superheater b I is defeatedGo out high pressure superheated steam, in the venthole output of described superheater b II, press superheated steam;

Described circulation air feed system comprises the first blower fan, the second blower fan, and the inlet end of described the first blower fan is logicalPiping is connected with the lower end of furnace chamber d, the flue gas of discharging for extracting furnace chamber d, described the first blower fanOutlet side is communicated with furnace chamber b by pipeline, and the air inlet of described the second blower fan is communicated with atmosphere, and describedThe gas outlet of two blower fans connects respectively the house steward of the first manifold, the second manifold, the arm of described the first manifoldRespectively with each air compartment and the gasification furnace of gasification furnace moving hearth below on each secondary connect for air portLogical, the arm of described the second manifold respectively with each air compartment and the whirlwind of incinerator moving hearth belowSome combustion airs of combustion chamber are communicated with for air port;

The generator that described electricity generation system comprises steam turbine and is connected with steam turbine power, described steam turbineComprise high-pressure cylinder, intermediate cylinder, low-pressure cylinder,

First order steam trap, first order high pressure vapour vapour are set between described high-pressure cylinder, intermediate cylinderHeater, the input of described first order steam trap is connected by pipeline with the output of high-pressure cylinder,The input that is heated of the steam output end of first order steam trap and first order high pressure vapour vapour heater passes throughPipeline connects, and the steam that is subject to hot output terminal and intermediate cylinder of described first order high pressure vapour vapour heater is inputtedEnd connects by pipeline, and second level steam trap, the second level are set between intermediate cylinder, low-pressure cylinderHigh pressure vapour vapour heater, the input of described second level steam trap and intermediate cylinder output are by pipeRoad connects, and being heated of the steam output end of second level steam trap and second level high pressure vapour vapour heater is defeatedEnter end and connect by pipeline, described second level high pressure vapour vapour heater be subject to hot output terminal and low-pressure cylinderSteam input connects by pipeline;

The steam output end of low-pressure cylinder connects condenser, water pump, low pressure vapor heating successively by pipelineDevice, oxygen-eliminating device, booster water pump, high pressure steam water heater, the input of being heated of described low pressure vapor heaterEnd is connected with water pump, and the hot output terminal that is subject to of low pressure vapor heater is connected with oxygen-eliminating device, the input of oxygen-eliminating deviceEnd is provided with moisturizing pipeline, and the input that is heated of described high pressure steam water heater is connected with booster water pump, high pressureThe hot output terminal that is subject to of steam water heater connects the carbonated drink import of drum a, drum b, described first by pipelineThe water output of level steam trap, the water output of second level steam trap connect by pipeline respectivelyThe input of oxygen-eliminating device;

Also comprise high steam input pipe, middle pressure steam input pipe, the input of described middle pressure steam input pipeEnd connects the venthole of superheater a II, superheater b II, during the output of middle pressure steam input pipe connects, pressesThe input of cylinder, the input of described high steam input pipe connects superheater a I, superheater b IVenthole, the output of described high steam input pipe respectively by pipeline connect high-pressure cylinder input,The heating input of first order high pressure vapour vapour heater, the heating input of second level high pressure vapour vapour heater,The heating input that adds hot output terminal connection high pressure steam water heater of first order high pressure vapour vapour heater, heightPress the input that adds hot output terminal connection oxygen-eliminating device of steam water heater, second level high pressure vapour vapour heaterAdd the heating input that hot output terminal connects low pressure vapor heater, low pressure vapor heater add thermal outputEnd connects the input of oxygen-eliminating device;

Described high-pressure cylinder is provided with the first steam and gets pipe, and the first steam is got the output of pipe to high-pressure cylinderGet steam, the output that the first steam is got pipe connects the heating input of high pressure steam water heater, described inAir cylinder is provided with the second steam and gets pipe, and described the second steam is got pipe and got steam to the output of intermediate cylinder,The second steam is got the heating input of the output connection low pressure vapor heater of pipe; Also comprise high pressure vapour gasHeat exchanger, low-pressure steam gas heat exchanger, the heat tunnel of described high pressure vapour gas heat exchanger is connected in by pipelineThe first steam is got between pipe, oxygen-eliminating device input, and the heat tunnel of described low-pressure steam gas heat exchanger is by pipeRoad is connected in the second steam and gets between pipe, oxygen-eliminating device input, the heated passage of low-pressure steam gas heat exchanger,The heated passage of high pressure vapour gas heat exchanger is series on the house steward of the first manifold, described high pressure vapour gas heat exchangerBe positioned at the downstream of low-pressure steam gas heat exchanger.

2. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: on each arm of described the first manifold, the first control valve is set respectively, described inOn each arm of the second manifold, the second control valve is set respectively.

3. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: described boiler body a has furnace chamber c, the upper end of described furnace chamber c and furnace chamberThe waste gas outlet of b upper end is communicated with, and the lower end of furnace chamber c arranges Waste gas outlet.

4. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 3 and double boiler thereofElectric system, is characterized in that: in described furnace chamber c, be provided with air preheater, the giving vent to anger of described the second blower fanEnd connects the air inlet of air preheater, and the gas outlet of air preheater connects the first manifold, the second manifoldHouse steward.

5. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 3 and double boiler thereofElectric system, is characterized in that: in described furnace chamber c, be provided with economizer, the water inlet of described economizer and increasingThe delivery port of water pump is communicated with, and the delivery port of described economizer is respectively by pipeline and drum a, drum bCarbonated drink import is communicated with.

6. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 3 and double boiler thereofElectric system, is characterized in that: the Waste gas outlet of described furnace chamber c connects flue gas purification system, described cigaretteGas cleaning system comprises aeration tower, deduster, air-introduced machine, the chimney of connecting successively along discharge directions.

7. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: described furnace chamber a, furnace chamber b below is provided with common slag notch, and this is commonSlag notch is communicated with the burner hearth of gasification furnace.

8. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: the lower end of described cyclone combustion chamber is provided with the taper that radius diminishes from top to bottomSlag notch, this taper slag notch is communicated with the burner hearth of gasification furnace.

9. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: described smoke inlet, the 3rd exhanst gas outlet are positioned at cyclone combustion chamber circle wallOpposition side; Described the 3rd exhanst gas outlet radially or tangentially arranges along cyclone combustion chamber circle wall.

10. energy-conservation of stoker fired grate formula refuse gasification incinerator according to claim 1 and double boiler thereofElectric system, is characterized in that: described transition falls in slag section and is provided with isolating door to be opened/closed, described isolationDoor is for cutting off gasification furnace, incinerator.