CN203893188U

CN203893188U - Air supply system

Info

Publication number: CN203893188U
Application number: CN201420229892.8U
Authority: CN
Inventors: 薛冬; 张东阳
Original assignee: Wuxi Gao Er Environmental Protection Technology Co Ltd
Current assignee: Wuxi Gao Er Environmental Protection Technology Co Ltd
Priority date: 2014-01-21
Filing date: 2014-05-06
Publication date: 2014-10-22
Anticipated expiration: 2024-05-06
Also published as: CN104019452A; CN203893191U; CN204084386U; CN104791803A; CN104791803B; CN204084387U; CN203893194U; CN104019452B; CN203893190U; CN204100255U

Abstract

The utility model discloses an air supply system applied to a gasification incinerator. The air supply system comprises a fan and an air pipe; the fan is arranged outside the gasification incinerator and connected with the air pipe; one part of the air pipe is buried in the sidewall of the gasification incinerator and while the other part of the air pipe exposes in the gasification incinerator; an air inlet hole is formed in the wall of the air pipe, exposing in the gasification incinerator; combustion-supporting air can be directly supplied to the gasification incinerator through the air inlet hole.

Description

A kind of supply air system

Technical field

The utility model relates to rubbish heat treatment technics field, particularly relates to a kind of small-sized small towns refuse pyrolysis gasification burning system and technique thereof.

Background technology

Under the background of new countryside construction, China rural area assumes an entirely new aspect, and the infrastructure in rural area is obviously improved.Yet when being accompanied by the raising of peasant's living standard, also occurred many inharmonious parts, production, house refuse are arbitrarily stacked, and cause peasant's Around the house to become soot, near Ye Chengliao refuse depot, farmland house, the road of walking is flooded with motley refuse bag especially.Ministry of Public Health's investigation shows, the house refuse amount of rural area everyone generation every day is at present 0.86 kilogram, the annual house refuse amount in rural area, the whole nation approaches 300,000,000 tons, " rubbish encloses village " forms, this directly threatens peasant's productive life land used, threaten peasant's living environment, threaten the improvement of the public things in village.

In the process of refuse collection, transportation, processing etc., need a large amount of funds, because rural residence disperses, have inconvenient traffic, particularly in some mountain areas, the cost that rubbish is processed is higher.And the most village and town finances difficulties of China are unablely born huge garbage disposal expense, be difficult to raise garbage disposal fund.The realistic problem that China rural garbage processing at present faces is low, simple to operate in the urgent need to developing a kind of cost of investment and operating cost, the technology of garbage disposal of high-efficiency cleaning and equipment.

The garbage burning processing method adopting both at home and abroad at present has: the several different methods such as fixed bed waste incineration, the waste incineration of travelling oven grate furnace, rotary kiln to melt burning, fluidized bed garbage combustion.Fixed bed, because incineration firing is insufficient, garbage treatment quantity is little, only has part to use now in the small-sized rubbish treatment system of villages and towns in rural areas.Travelling oven grate furnace treating capacity is large, most widely used general in garbage incinerating power plant at home and abroad.But grate furnace directly burns to rubbish, excess air coefficient is large, heat loss is more, and when the fluctuation of the low or refuse thermal value of refuse thermal value is larger, combustion product carbon containing is more, burn insufficient, when refuse thermal value is higher, easily produces a large amount of NOx, and occur burning out the phenomenon such as coking and blocking air vent on fire grate or fire grate, increase maintenance operation intensity, affect garbage disposal.Rotary kiln is mainly used in the burning of industry or danger wastes, and general scale is less, adopts oil spout combustion-supporting, and residue is discharged with liquid state or molten state form.Rotary kiln ignition temperature is high, has the seal box high temperature deformation problem of rotatable parts, and liquid state or molten state residue are severe to lining wear in addition, make rotary kiln working life shorter.Fluidized bed garbage combustion is applicable to large scale rubbish and processes, rubbish will carry out the series of preprocessing such as fragmentation and sorting before entering stove burning disposal, causes like this equipment manufacturing cost higher, and operating cost increases, fluid unit cost is more expensive simultaneously, and this has also limited its application.

Rubbish is gasified and second-time burning is called as third generation incineration technology, is current more advanced incineration firing process in the world, is intended to improve efficiency of combustion, reduces secondary pollution.

Therefore, those skilled in the art be devoted to develop a kind of cost of investment and operating cost low, simple to operate, the technology of garbage disposal of high-efficiency cleaning and related system, equipment and device.

Utility model content

The utility model provides a kind of garbage combustion device for achieving the above object, comprises gasification burning equipment.

Gasification burning equipment comprises: for the dryer section (or claiming the first cavity) of drying garbage, the pyrolytic gasification section (or claiming the second cavity, a combustion chamber, incinerator) for burning away the refuse, the high temperature incineration section (Huo Cheng dual firing chamber) of further burning for pyrolytic gasification section being burned to the flue gas of generation, and be placed in primary air fan, overfire air fan and the exhaust apparatus outside gasification burning equipment.

Dryer section comprises charging aperture, dry channel, flue gas chuck, and charging aperture externally opens wide the entrance that enters gasification burning equipment as rubbish, and rubbish is heated in heat tunnel, and flue gas chuck is set in the periphery of heat tunnel, and dryer section is communicated with pyrolytic gasification section.

Further, the connected entrance of dryer section and pyrolytic gasification section is at top or the top of pyrolytic gasification section.

Further, dry channel is obliquely installed, and the connected entrance of dryer section and pyrolytic gasification section is lower than charging aperture, and the reliable deadweight of rubbish falls into pyrolytic gasification section.

Further, dry channel is columnar drying.

Further, drying can, along the tangential rotation of its cylinder, be take columnar central axis as axle rotation.

Further, be provided with flight in drying, when drying rotates along different directions, flight coordinates respectively realizes following 2 kinds of functions:

(1) drive rubbish to fall into pyrolytic gasification section;

(2) stop rubbish to fall into pyrolytic gasification section.

Be similar to the internal structure of the agitator of concrete mixer.

Further, gasification burning equipment also comprises dry gas fairlead, the two ends of dry gas fairlead are connected with dryer section, primary air fan respectively, thereby can, by the gas in dryer section by dry gas fairlead, by primary air fan, through an airduct, be sent in pyrolytic gasification section.

Further, dry gas fairlead comprises dry gas fairlead, lower dry gas fairlead, dry gas house steward, and one end of upper dry gas fairlead is connected with the upper end of dryer section, near charging aperture; One end of lower dry gas fairlead is connected with the lower end of dryer section, near the connected entrance of dryer section and pyrolytic gasification section, the other end of the other end of upper dry gas fairlead and lower dry gas fairlead is connected after converging and is communicated with one end of dry gas house steward, the i.e. structure of a threeway, dry gas house steward's the other end is connected with primary air fan.

Pyrolytic gasification section comprises airduct one time, and one time airduct is communicated with inside and outside pyrolytic gasification section, and primary air fan is connected with an airduct, thereby can through an airduct, in pyrolytic gasification section, provide air by primary air fan.

Further, one time airduct is partly or entirely embedded in the sidewall of pyrolytic gasification section, guarantees in pyrolytic gasification section the once air outlet of airduct simultaneously.

Further, one time airduct comprises a plurality of fresh air inlets, and described fresh air inlet is exposed in described pyrolytic gasification section, and part pipeline section is exposed in pyrolytic gasification section, and on it, have fresh air inlet as airduct the air outlet in pyrolytic gasification section.

Further, pyrolytic gasification section adopts vertical and cylindrical structure.

Further, an airduct is circular horizontal setting.

Further, pyrolytic gasification section comprises fire grate, and fire grate is for carrying the rubbish that is entered pyrolysis gas section by dryer section.

Further, fire grate is not higher than whole fresh air inlets.Guaranteed like this in dumping region the once fresh air inlet of airduct.

Further, fire grate comprises fire grate segment, rotating turning cylinder, and fire grate segment is the turning cylinder top that is fixed on spaced apart evenly, and fire grate segment drives the lime-ash producing after waste incineration to fall into the below of fire grate segment while rotating with turning cylinder.

Further, pyrolytic gasification section comprises dividing plate, removes grit chamber, and dividing plate is arranged at fire grate segment below, between fire grate segment and dividing plate, defines except grit chamber.

Further, pyrolytic gasification section comprises clean-out door, and dividing plate is obliquely installed, and the low level of inclination is arranged on described clean-out door one side, can make like this lime-ash falling near clean-out door, is convenient to cleaning.

Further, gasification burning equipment also comprises flue gas fairlead, and pyrolytic gasification section is communicated with by flue gas fairlead with high temperature incineration section.

Further, one end of flue gas fairlead is in pyrolytic gasification section, and Open Side Down for the mouth of pipe; The other end is fixedly mounted in the connected entrance of pyrolytic gasification section and high temperature incineration section, and mouth of pipe opening is in burning chamber.

Further, flue gas fairlead is not less than whole fresh air inlets.

Further, flue gas fairlead is arranged on fire grate top.

Further, flue gas fairlead is " L " type, is arranged on the pipeline section horizontal setting in the connected entrance of pyrolytic gasification section and high temperature incineration section.

High temperature incineration section comprises secondary air channel, burns chamber, burning chamber is high temperature incineration section main body, above-mentioned pyrolytic gasification section is communicated with high temperature incineration section, is actually and burns being communicated with of chamber, and flue gas fairlead is to be also fixedly mounted on pyrolytic gasification section and to burn in the connected entrance of chamber; Secondary air channel is communicated with inside and outside high temperature incineration section, and overfire air fan is connected with secondary air channel, thereby can through secondary air channel, in high temperature incineration section, provide air by overfire air fan, and concrete is to provide air to burning chamber; Burn chamber and is also communicated with flue gas chuck, flue gas chuck is connected with exhaust apparatus, and the high-temperature flue gas by flue gas chuck heats rubbish in dryer section, and exhaust apparatus is by the flue gas discharge gasification burning equipment in high temperature incineration section.

Further, burn chamber and comprise a plurality of sub-chamber, number consecutively is designated as the 1st sub-chamber, the 2nd sub-chamber ... K sub-chamber, K is the sum of sub-chamber; The 1st Yu of sub-chamber 2 sub-chamber are communicated with, the 2nd Yu of sub-chamber 3 sub-chamber are communicated with ... Yu K sub-chamber of K-1 sub-chamber is communicated with; The 1st sub-chamber is communicated with pyrolytic gasification section, and K sub-chamber is communicated with flue gas chuck.

In preferred embodiment of the present utility model, adopt the common burning chamber that forms a cube structure of sub-chamber of 6 cube structures.

Further, secondary air channel is embedded in the sidewall of sub-chamber, the sidewall of Huo You sub-chamber limits and form (being equivalent at sidewall open interior); Secondary air channel comprises Secondary Air air inlet, and Secondary Air air inlet is arranged in the connected entrance between at least one sub-chamber, and its position is to limit on sub-chamber's sidewall of connected entrance.

Further, burn chamber and comprise burner, burner comprises spray wind hole, burner is arranged in the connected entrance between the sub-chamber that is provided with Secondary Air air inlet, between Secondary Air air inlet and burner, define secondary air chamber, spray wind hole is communicated with secondary air chamber and burns chamber, and Secondary Air air inlet, secondary air chamber, spray wind hole form an air and enter the path that burns chamber.

Further, the installation direction of burner is identical, and between the sub-chamber at each burner place, the perforate direction of connected entrance is identical.

Further, the setting height(from bottom) of burner is identical, by the sidewall locations of sub-chamber, is limited.

Further, burner comprises vertically columnar structured, and spray wind hole is arranged on columnar structured sidewall, and the perforate direction in spray wind hole is on columnar structured Inner side tangential, on the cylinder that columnar structured medial surface limits tangential.

Further, high temperature incineration section also comprises just expansion chamber, and first expansion chamber burns sub-chamber with at least one and is communicated with.

In preferred embodiment of the present utility model, first expansion chamber Yu 1 sub-chamber is communicated with.

Further, first expansion chamber is arranged on described burning chamber below.

In preferred embodiment of the present utility model, first expansion chamber Yu 1 sub-chamber is communicated with, and settles thereunder.

Further, gasification burning equipment also comprises 1 grade of expansion chamber, and 1 grade of expansion chamber is communicated with pyrolytic gasification section, flue gas chuck respectively, and now pyrolytic gasification section and flue gas chuck are not directly communicated with, midfeather 1 grade of expansion chamber.

Further, for the burning chamber that comprises K sub-chamber, 1 grade of expansion chamber respectively Yu K sub-chamber, flue gas chuck is communicated with, and now K sub-chamber is not directly communicated with flue gas chuck, midfeather 1 grade of expansion chamber.

Further, gasification burning equipment also comprises heat-exchange device, and heat-exchange device is connected with flue gas chuck, exhaust apparatus respectively, and now flue gas chuck is not directly connected with exhaust apparatus, midfeather heat-exchange device.

Further, gasification burning equipment also comprises 2 grades of expansion chambers, and 2 grades of expansion chambers are communicated with and are connected with exhaust apparatus with flue gas chuck, and now flue gas chuck is not directly connected with exhaust apparatus, midfeather 2 grades of expansion chambers.

Further, as need carry out 2 heat exchanges, heat-exchange device comprises 4 interfaces, it is respectively interface 1, interface 2, interface 3, interface 4,2, interface 1 and interface have path, interface 3 and 4, interface to have path, 1,2 grades of expansion chambers of flue gas chuck connecting interface are connecting interface 2 and interface 3 respectively, exhaust apparatus connecting interface 4.

Further, 2 grades of expansion chambers comprise a plurality of sedimentation sub-chamber, and number consecutively is designated as the 1st sedimentation sub-chamber, the 2nd sedimentation sub-chamber ... M sedimentation sub-chamber, M is the sum of sedimentation sub-chamber; The 1st sedimentation sub-chamber is communicated with the 2nd sedimentation sub-chamber, the 2nd sedimentation sub-chamber is communicated with the 3rd sedimentation sub-chamber ... M-1 sedimentation sub-chamber is communicated with M sedimentation sub-chamber, and M is the sum of sedimentation sub-chamber; Heat-exchange device is connected with flue gas chuck, the 1st sedimentation sub-chamber respectively, and M sedimentation sub-chamber is connected with exhaust apparatus.

In preferred embodiment of the present utility model, 3 sedimentation sub-chamber have been adopted.

Further, for a plurality of sedimentation sub-chamber, as need carry out 2 heat exchanges, heat-exchange device comprises 4 interfaces, it is respectively interface 1, interface 2, interface 3, interface 4,2, interface 1 and interface have path, interface 3 and 4, interface to have path, flue gas chuck connecting interface the 1, the 1st sedimentation sub-chamber connecting interface 2, M sedimentation sub-chamber connecting interface 3, exhaust apparatus connecting interface 4.

Further, above-mentioned heat-exchange device is boiler, and high-temperature flue gas is heated and realized cooling by the water in boiler, and has stored heat energy.

Further, exhaust apparatus is air-introduced machine and chimney.Air-introduced machine is extracted the tail gas of gasification burning equipment out, then enters atmosphere through smoke stack emission.

Garbage combustion device also comprises feed conveying device, and feed conveying device comprises garbage inlet end and garbage outlet end, and garbage outlet end connects charging aperture.

Further, feed conveying device is electric trowelling formula conveyer belt.

Further, garbage combustion device also comprises breaker, and breaker is by refuse breaking piecemeal, and the rubbish after fragmentation is sent into garbage inlet end.

Further, breaker is low velocity shear formula solid waste garbage pulverator.

Further, the Breadth Maximum of rubbish after fragmentation is less than 300mm.

Further, garbage combustion device also comprises magnetic separation conveying device, for separating of the iron compound in rubbish; Magnetic separation conveying device comprises carries arrival end and carries the port of export, from carrying arrival end to put into rubbish, by carrying the port of export that rubbish is sent into breaker.

Further, magnetic separation conveying device comprises electric belt conveyer, magnet, and magnet arrangement is in electric belt conveyer top or/and side.

Further, garbage combustion device also comprises rubbish heap storage, deposits rubbish in heap storage.

Further, rubbish heap storage comprises air intake duct, and air intake duct is connected with overfire air fan.

Further, primary air fan and overfire air fan are air blasts.

The burning process that adopts above-mentioned garbage combustion device, comprises the following steps:

Step 1, by rubbish heap storage or need rubbish to be processed to send into magnetic separation conveying device to isolate iron compound;

Step 2, rubbish is sent into breaker continuously or in batches carry out fragmentation;

Rubbish after step 3, fragmentation is sent into the dryer section of gasification burning equipment by feed conveying device;

Step 4, rubbish are dried in dryer section, and fall into pyrolytic gasification section, and the volatile matter drying gas fairlead producing in drying course is sent into pyrolytic gasification section by primary air fan; Can pass through the rotation of pyrolytic gasification section different directions, reach and allow rubbish accelerate to fall into pyrolytic gasification section or maintain dryer section to lengthen drying time;

Step 5, the rubbish that falls into pyrolytic gasification section are carried on fire grate and burn, and by primary air fan, provide air-breathing, and air is by an airduct, and enter pyrolytic gasification section by the air outlet (wind pushing hole) of an airduct;

The flue gas producing after step 6, waste incineration enters the burning chamber of high temperature incineration section through flue gas fairlead;

Step 7, flue gas burn through burning each sub-chamber of chamber successively, by overfire air fan, provide air-breathing, air enters burning chamber by the spray wind hole of secondary air channel, Secondary Air air inlet, secondary air chamber, burner successively, and in this process, just expansion chamber has been collected the dust in part of smoke;

Step 8, flue gas leave burning chamber and enter 1 grade of expansion chamber dedusting;

Step 9, flue gas leave 1 grade of expansion chamber and enter flue gas chuck, and the temperature by flue gas realizes the oven dry to rubbish in dryer section;

Step 10, flue gas enter heat-exchange device then, reach the object of cooling and storage power;

Step 11, flue gas enter 2 grades of expansion chambers then, after each sedimentation sub-chamber dedusting of 2 grades of expansion chambers, again enter heat-exchange device successively, again cooling and energy storage;

Step 12, flue gas are discharged gasification burning equipment by exhaust apparatus.

Further, in step 1, magnetic separation conveying device comprises electric belt conveyer, magnet, and magnet arrangement is in electric belt conveyer top or/and side.

Further, in step 2, breaker is low velocity shear formula solid waste garbage pulverator.

Further, the Breadth Maximum of rubbish after fragmentation is less than 300mm.

Further, in step 3, feed conveying device is electric trowelling formula conveyer belt.

Further, in step 5, what now in pyrolytic gasification section, carry out is pyrolytic gasification and the burning of anaerobic condition, and operating temperature is less than 800 ℃.

Further, fire grate comprises fire grate segment, rotating turning cylinder, and fire grate segment is the turning cylinder top that is fixed on spaced apart evenly, and in step 5, fire grate segment drives the lime-ash producing after waste incineration to fall into the below of fire grate segment while rotating with turning cylinder.

Further, pyrolytic gasification section comprises dividing plate, removes grit chamber, clean-out door, and dividing plate is arranged at fire grate segment below, between fire grate segment and dividing plate, defines except grit chamber, can open clean-out door cleaning lime-ash after burning finishes.

Further, in step 7, now flue gas carries out oxygen-excess combustion in incinerating chamber, and the operating temperature range of burning chamber is 900-1100 ℃.

Further, in step 10 and 11, heat-exchange device is boiler, and flue gas carrys out heating water as the thermal source of boiler.

Further, in step 12, exhaust apparatus is air-introduced machine and chimney.Air-introduced machine is extracted the tail gas of gasification burning equipment out, then enters atmosphere through smoke stack emission.

Further, primary air fan and overfire air fan are air blasts.

Burning process depends on the actual disposition of each equipment in garbage combustion device, in actual use, can do for actual conditions the adjustment of corresponding configuration, now also can from above step, draw the burning process step adapting with adopted configuration.

Garbage combustion device of the present utility model without auxiliary igniter, only need be used conventional method to make in stove in fired state, as used timber, gasoline etc. in burning process before burning process.

Garbage combustion device of the present utility model has following beneficial effect:

1, emission compliance non-secondary pollution, pyrolyzing, gasifying and incinerating process is to complete strict control under the temperature in each stage and the condition of air capacity, therefore, fume emission can be up to state standards completely, non-secondary pollution.

2, the high residual ash of volume reduction rate is innoxious, and after waste incineration, volume reduction rate can reach more than 95%, and residual ash is completely harmless, free of contamination material.

3, need not go-no-go applied range, this pyrolysis gasifying device need not carry out go-no-go to rubbish, can burn various types of rubbish, is of wide application.

4, the recovery economy of energy is profitable, can fully reclaim the heat energy of rubbish, produces hot water, steam, and economic benefit is very remarkable, and the investment payback time is short.

The utility model also provides a kind of incinerator, as the pyrolytic gasification section of above-mentioned garbage combustion device (or claiming the second cavity, a combustion chamber), comprises body of heater, fire grate, airduct, flue gas fairlead, dividing plate, except grit chamber and clean-out door; Fire grate is arranged on the bottom in body of heater, and fire grate comprises fire grate segment, rotating turning cylinder, and fire grate segment is the turning cylinder top that is fixed on spaced apart evenly; Dividing plate is arranged on fire grate segment below, defines therebetween except grit chamber; On sidewall around the body of heater except grit chamber, be provided with clean-out door; One time airduct is communicated with inside and outside described body of heater, and it can connect outside air blast, in stove, blows; Flue gas fairlead is fixedly mounted on the sidewall of body of heater, and is positioned at fire grate top.

Further, body of heater top or top are provided with opening, can put into the rubbish that needs burning from opening part.

Pyrolytic gasification section in above-mentioned garbage combustion device is communicated with dryer section by open top.

Further, body of heater is vertical and cylindrical structure.

Further, an airduct is embedded in the sidewall of the body of heater above fire grate segment, and a part for an airduct is exposed in body of heater; Be exposed on an airduct in body of heater and comprise wind pushing hole.

Further, airduct top in fire grate outermost edge, the edge of fire grate is limited by the extending range of fire grate segment.

Further, an airduct is annular.

Further, an airduct horizontal setting.

Further, the perforate direction of fresh air inlet becomes 0 degree or 45 degree with horizontal plane.

Further, dividing plate is obliquely installed, and the low level of inclination is arranged on described clean-out door one side.

Further, body of heater adopts refractory material to make.

Incinerator of the present utility model has following beneficial effect:

1, an airduct is built in burner hearth inside, and tube wall temperature is high, can preheating enter stove air.

2, the design of wind air outlet can guide flue gas to gather to burner hearth center, and in conjunction with the set-up mode of flue gas fairlead, the discharge of the flue gas that is conducive to gasify, reduces the time of staying of gasification flue gas in burner hearth, improves gasification gas calorific value.

3, the rotary fire grate slowly rotating can be realized continuously, mechanical deslagging, reduces labor strength, reduces the interference to burning zone.

4, be suspended in the flue gas fairlead in burner hearth, can be used as high temperature heat-transfer surface, assist dry, pyrolysis and the gasification of material.

The utility model also provides a kind of multi-cavity flue gas to burn chamber, and the burning chamber as the high temperature incineration section (Huo Cheng dual firing chamber) of above-mentioned garbage combustion device, comprising:

The sub-chamber of 6 cube structures, difference Shi 1 sub-chamber, the 2nd sub-chamber, the 3rd sub-chamber, the 4th sub-chamber, the 5th sub-chamber, the 6th sub-chamber, the rear side of the 1st sub-chamber is near the front side of the 3rd sub-chamber, the upside of the 1st He of sub-chamber 3 sub-chamber is near the downside of the 2nd sub-chamber, the 2nd sub-chamber right side is near the left side of the 5th sub-chamber, the right side of the 3rd sub-chamber is near the left side of the 4th sub-chamber, the rear side of the 6th sub-chamber is near the front side of the 4th sub-chamber, the upside of the 4th He of sub-chamber 6 sub-chamber is near the downside of the 5th sub-chamber, the left side of the 6th sub-chamber is near the right side of the 1st sub-chamber, and 6 sub-chamber's perforate connections successively, and the multi-cavity flue gas that jointly forms cube structure burns the main body of chamber, the left side sidewall of the 1st sub-chamber comprises gas approach, the right sidewall of the 6th sub-chamber comprises exhanst gas outlet,

Secondary air channel, secondary air channel is communicated with multi-cavity flue gas and burns inside and outside chamber, secondary air channel is embedded in the sidewall of each sub-chamber or is limited and formed (being equivalent at sidewall open interior) by sidewall, and secondary air channel can connect outside air blast, thereby provides air in multi-cavity flue gas burning chamber; Secondary air channel comprises Secondary Air air inlet, has 4 Secondary Air air inlets, is separately positioned in the connected entrance between the 1st He of sub-chamber 2 sub-chamber, the 2nd He of sub-chamber 3 sub-chamber, the 4th He of sub-chamber 5 sub-chamber, the 5th He of sub-chamber 6 sub-chamber;

Burner, have 4 burners, be arranged on respectively in the connected entrance between the sub-chamber that is provided with Secondary Air air inlet, between Secondary Air air inlet and burner, define secondary air chamber, burner comprises spray wind hole, spray wind hole is communicated with secondary air chamber and burns chamber, and Secondary Air air inlet, secondary air chamber, spray wind hole form an air and enter the path that multi-cavity flue gas burns chamber.

Further, the upside sidewall of the 2nd He of sub-chamber 5 sub-chamber is domes of projection.

Further, the width of 6 sub-chamber is identical, the length of the 1st sub-chamber, the 3rd sub-chamber, the 4th He of sub-chamber 6 sub-chamber and highly identical, the length of the 2nd He of sub-chamber 5 sub-chamber and highly identical, and length is the twice of the length of all the other 4 sub-chamber.

Further, burner comprises vertically columnar structured.

Further, spray wind hole is arranged on the columnar structured sidewall of burner.

Further, the installation of burner meets that it is columnar structured perpendicular to horizontal plane.

Further, the setting height(from bottom) of burner is identical.

Further, the perforate direction in spray wind hole is on its columnar structured Inner side tangential.

Further, spray wind hole has 3 rows 10 row and is uniformly distributed on columnar structured sidewall.

Further, each sub-chamber adopts refractory material to make.

Multi-cavity flue gas of the present utility model burns chamber and has following beneficial effect:

1, in flow of flue gas and combustion process, repeatedly supplement air, elongate flame.

2, air tangentially enters, and forms eddy current, and strengthening flue gas mixes with air, sufficient combustion, and temperature is high, is conducive to the after-flame of organic pollution and carbon residue.

3, repeatedly supplement air in conjunction with tangential air intake mode, can reduce excess air factor, reduce smoke evacuation volume and flue gas flow rate, thereby reduce the fume amount that flue gas carries.

4, flow of flue gas is carried out repeatedly break-in by design, plays certain dustproof function, reduces the smoke content in smoke evacuation, has extended the time of staying of flue gas at high-temperature area simultaneously.

The utility model also provides a kind of flue gas fairlead, for being communicated with pyrolytic gasification section and the high temperature incineration section of above-mentioned garbage combustion device, comprises induced duct, blower cover, and blower cover is fixedly connected on one end of induced duct; Blower cover comprises bar hole and reinforcement, and described bar hole is evenly distributed on the sidewall of described blower cover, and reinforcement is arranged between adjacent described bar hole.

Further, induced duct is the cylindrical pipe with 90 ° of corners.

Further, blower cover is round mouth diverging duct.

Further, one end of blower cover osculum is connected with induced duct.

Further, the bearing of trend of bar hole is identical with the bearing of trend of blower cover.

Further, reinforcement is perpendicular to the sidewall of the blower cover of its contact.

In above-mentioned garbage combustion device, this one end of the blower cover of flue gas fairlead is in pyrolytic gasification section, and vertically downward, and to make it be not the turning cylinder over against fire grate to the mouth of pipe in the installation site of this mouth of pipe, but slightly depart from.

Flue gas fairlead of the present utility model has following beneficial effect:

1, gasification flue gas is by being built in burner hearth, and the smoke pipe being submerged in material is drawn, and can reduce moisture, improves flue gas calorific value, reduces the content of tar in flue gas, reduces kind of dust.

2,, owing to containing flare in flue gas, in dual firing chamber, without igniter, just can burn continually and steadily.

3, the flue gas fairlead of high temperature also can be used as the indoor accumulation of heat of gasification burning, heat delivery surface, can provide heat for refuse pyrolysis gasification.

The utility model also provides a kind of built-in drying garbage unit, as the dryer section of above-mentioned garbage combustion device, comprises support, front canned paragraph, feed hopper, feed pipe, drying, flue gas chuck, rear canned paragraph, tremie pipe; Drying tilts rack-mount; Drying comprises drying entrance and drying outlet, and drying entrance is higher than drying outlet on horizontal level, and front canned paragraph is fixedly connected with respectively drying entrance and drying outlet with rear canned paragraph; Feed pipe is arranged in front canned paragraph, and the two ends of feed pipe connect respectively drying entrance and feed hopper; Canned paragraph after tremie pipe connects; Flue gas chuck is sleeved on drying outside.

Further, also comprise driving gear, driving wheel, driven pulley, driven gear; Driving gear and driving wheel match, and be arranged on support respectively, one end of drying; Driven support roller and driven pulley match, and be arranged on support respectively, the other end of drying; Driving gear connects driving arrangement.

Further, driving wheel and driven pulley are arranged on respectively the upper and lower of drying.

Further, drying comprises flight, and flight is arranged on drying inwall.

Further, feed pipe comprises dry gas fairlead; Front canned paragraph comprises dry gas outlet, can connect dry gas fairlead.

Further, flue gas chuck comprises flue gas inlet tube and smoke outlet tube, as the entrance and exit of high-temperature flue gas.

Further, the junction of front canned paragraph, flue gas chuck, rear canned paragraph and drying all adopts high temperature flexible sealing structure to seal, and high temperature flexible sealing structure is fitted and formed successively by rear mounting flange, flexible sealing fin, front mounting flange.

Further, the internal diameter of front mounting flange equates with flexible sealing fin internal diameter, and the external diameter of rear mounting flange equates with the external diameter of flexible sealing fin.

Further, front mounting flange and rear mounting flange are made by metal material; Flexible sealing fin adopts high temperature resistant elastomeric material to make.

Further, driving arrangement is the combination of motor, variable-frequency motor, motor or variable-frequency motor and reduction box.

Built-in drying garbage of the present utility model unit has following beneficial effect:

1, simple in structure, can be placed in refuse gasification incinerator body, reduce the required insulation material of drying unit itself.

2, utilize high-temperature flue gas (more than 700 ℃), heat transfer temperature difference is large, and drying effect is good.

3, flue gas and material wall-type heat exchange, cigarette material is contactless.

4, the dry gas producing is introduced vaporizer, and gasifying agent (steam) is provided, and does not have condensation sewage to produce.

The utility model also provides a kind of supply air system for incinerator, and a wind supply air system as the pyrolytic gasification section of above-mentioned garbage combustion device, comprises blower fan, airduct; Described blower fan arranges outside incinerator, and is connected with airduct; An airduct part is embedded in the sidewall of incinerator, a part is exposed in incinerator; Airduct is exposed on the tube wall in incinerator and comprises fresh air inlet.

Further, when incinerator is cylindrical structural, airduct is annular.

Further, airduct level is installed.

Further, airduct is 270 ° of annulars.

Further, fresh air inlet has 3 row in vertical direction.

Further, the fresh air inlet of the top a line is along the radially perforate upward of airduct; The fresh air inlet of middle row is along the radial level perforate of airduct, and the fresh air inlet of below a line is along the radially perforate down of airduct.

Further, the top a line and the perforate direction of the described fresh air inlet of below a line is at 45 ° with horizontal plane respectively.

Further, blower fan is air blast.

Supply air system of the present utility model has following beneficial effect:

1, make to enter the air of burner hearth or steam temperature high and stablize adjustablely, effectively avoid the generation of " cutoff " phenomenon, thereby strengthen combustion gas quantum of output, improve the combustion gas speed of response.

2, utilize the annular setting of airduct and the perforate direction of wind pushing hole, expand air-supply region.

The utility model also provides a kind of swinging fire grate, and the fire grate as the pyrolytic gasification section of above-mentioned garbage combustion device, comprises fire grate segment, turning cylinder, sprocket wheel, bearing; Fire grate segment is the turning cylinder top that is fixedly mounted on spaced apart evenly, and bearing is arranged on the bottom of turning cylinder; Sprocket wheel is fixedly mounted on the bottom of turning cylinder, is positioned at described bearing top, and connects driving arrangement.

Further, fire grate segment is along downward-sloping away from the direction of turning cylinder.

Further, also comprise dust retaining cone, dust cap, stop collar, key; Dust retaining cone is arranged on the top of turning cylinder; Dust cap and stop collar (restriction partition position) are arranged on the middle part of turning cylinder, and dust cap is above stop collar; Key is arranged on the bottom of turning cylinder and between sprocket wheel and bearing.

Further, the integrated leather boots shape pentagonal configuration that fire grate segment consists of jointly the boots mouth end of rectangular configuration and the boots bottom of ladder structure of right angle, and leather boots shape pentagonal configuration has an acute angle, boots mouth end is connected with turning cylinder, fire grate segment also comprises a plurality of holes, and a plurality of holes are arranged in order along described fire grate segment bearing of trend.

Further, along fire grate segment, the direction away from turning cylinder increases the diameter in a plurality of holes successively.

Further, each corner of leather boots shape pentagonal configuration is fillet.

Further, described driving arrangement is the combination of variable-frequency motor and decelerator.

Swinging fire grate segment of the present utility model has following beneficial effect:

1, slagging-off continuously, reduces bulk slag coalescent possibility on fire grate, protection fire grate.

2, mechanization slagging-off, reduces workman's working strength, avoids manually removing the destruction of slag operation to burning level, reduces flue dust and overflows, and improves environmental-protecting performance.

Accompanying drawing explanation

Fig. 1 is the system schematic of garbage combustion device of the present utility model;

Fig. 2 is the front view of gasification burning equipment in Fig. 1;

Fig. 3 is the top view of gasification burning equipment in Fig. 1;

Fig. 4 be along A-A in Fig. 3 to cutaway view;

Fig. 5 be along B-B in Fig. 3 to cutaway view;

Fig. 6 and Fig. 7 are the axis side views that multi-cavity flue gas of the present utility model burns chamber, are also the burning chambers of high temperature incineration section in Fig. 3;

Fig. 8 is the enlarged drawing of the burning chamber cutaway view of high temperature incineration section in Fig. 4, is also the cutaway view that multi-cavity flue gas of the present utility model burns chamber;

Fig. 9 is the inside elevation view of incinerator of the present utility model;

Figure 10 is the inside left view of incinerator shown in Fig. 9;

Figure 11 is the axis side view that burns burner in chamber shown in Fig. 6-8;

Figure 12 be along D-D in Figure 11 to cutaway view;

Figure 13 is the schematic diagram of flue gas fairlead of the present utility model;

Figure 14 be along C-C in Fig. 9 to cutaway view;

Figure 15 is the top view of built-in drying garbage of the present utility model unit;

Figure 16 be along E-E in Figure 15 to cutaway view;

Figure 17 is the structure chart of high temperature flexible sealing structure in Figure 15;

Figure 18 is the schematic diagram of supply air system of the present utility model;

Figure 19 is the front view of an airduct in Figure 18;

Figure 20 is the top view of an airduct in Figure 18;

Figure 21 is the front view of swinging fire grate of the present utility model;

Figure 22 is the structure chart of fire grate segment in Figure 21.

The specific embodiment

Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.

The embodiment of garbage combustion device:

As shown in Figure 1, be a preferred embodiment of garbage combustion device of the present utility model, it comprises rubbish heap storage 1, magnetic separation conveying device 2, breaker 3, feed conveying device 4, gasification burning equipment 5, primary air fan 7, overfire air fan 8, air-introduced machine 9, chimney 10.Gasification burning equipment 5 comprises dryer section 11, pyrolytic gasification section 12 and high temperature incineration section 13, and the primary air fan 7, overfire air fan 8, air-introduced machine 9 and the chimney 10 that are placed in gasification burning equipment 5 outsides.Primary air fan 7 connects pyrolytic gasification section 12, and so that air to be provided in it, overfire air fan 8 connects high temperature incineration section 13, and so that air to be provided in it, air-introduced machine 9 and chimney 10 are arranged on the top of gasification burning equipment 5, for the tail gas wherein producing.

Rubbish heap storage 1 outlet connects magnetic separation conveying device 2, and this device is belt-type, and magnet sorting iron compound is equipped with in its top, its outlet connects breaker 3, and this device is shearing, and its outlet taps into material conveying device 4, this device is scraper-type, and its outlet connects dryer section 11.Gasification burning equipment 5 tops are provided with dry gas fairlead 15 and lower dry gas fairlead 16, article two, dry gas fairlead converges, and connect dry gas house steward 6, dry gas house steward 6 connects primary air fan 7 again, thereby realize steam, low boiling combustible gas that rubbish is produced in dryer section 11 inner drying processes, sends into pyrolytic gasification section 12.Overfire air fan 8 is located at gasification burning equipment 5 middle parts, and import connects the air intake duct (not shown) of rubbish heap storage 1 top installing.

Gasification burning equipment 5 as Figure 2-Figure 5, this its upper side is first paragraph-dryer section 11 (or claiming the first cavity), comprise flue gas chuck 17, the drying 55 being obliquely installed, drying 55 is vertical cylinder types, the path of travel of rubbish in dryer section 11, flue gas chuck 17 is set in the outside of drying 55, flue gas chuck 17 comprises flue gas inlet tube 27 and smoke outlet tube 28, for passing in and out the flue gas of high temperature incineration section 13, the high-temperature flue gas of usining is dried the rubbish in drying 55 as thermal source, makes the low boiling Volatile in rubbish.Realized external oven dry, cigarette material is separated.Drying 55 can be driven and be take the central axis of its cylinder type and rotate as axle by driving arrangement, and drying 55 inwalls are provided with flight 19 simultaneously, and dryer section 11 comprises that heating source is.Drying 55 can rotate by positive and negative both direction, coordinate flight 19 to realize the wherein driving of rubbish (being similar to the agitator of concrete mixer), during as forward rotation, drive rubbish to drop to second segment-pyrolytic gasification section 12 (or claiming the second cavity, a combustion chamber, incinerator) of gasification burning equipment 5 lower left quarters, while rotating backward, extended, strengthening drying effect rubbish time of staying in drying 55.

Rubbish, at the interior generation pyrolytic gasification of pyrolytic gasification section 12, carries out fuel gas and forms and solid-state, liquid combustible after-flame process.The pyrolytic gasification section 12 inside fire grate 20 that below is provided with, fire grate 20 comprises fire grate segment 35, rotating turning cylinder 36, even turning cylinder 36 tops that are fixedly mounted on spaced apart of fire grate segment 35, both form the structure of similar umbrella, fire grate segment 35 belows are provided with dividing plate 46, define therebetween except grit chamber 21.Fall into the rubbish in pyrolytic gasification section 12, be carried on fire grate segment 35 and burn.Lime-ash after waste incineration can fall into fire grate segment 35 belows, when fire grate segment 35 rotates with the turning cylinder 36 by Electric Machine Control, further drives lime-ash to fall, and is deposited in except in grit chamber 21.Pyrolytic gasification section 12 also comprises clean-out door 45, after opening, can clear up except the lime-ash in grit chamber 21.Dividing plate 42 is obliquely installed, and incline direction is towards clean-out door 45, so that cleaning.In the sidewall refractory material of the top pyrolytic gasification section 12 of fire grate segment 35 outmost turns, be embedded with an airduct 22 of annular, its one end connects the primary air fan 7 outside gasification burning equipment 5, and on an airduct 22, comprise a plurality of fresh air inlets 43 that are exposed in pyrolytic gasification section 12, by primary air fan 7 and an airduct 22, by fresh air inlet 43, as air outlet, in pyrolytic gasification section 12, provide air.The position that the top of fire grate 20 is departed from turning cylinder 36 is slightly provided with flue gas fairlead 23, its one end mouth of pipe vertically downward, the 3rd section-high temperature incineration section 13 of another termination (Huo Cheng dual firing chamber).

The flue gas that rubbish produces in the interior burning of pyrolytic gasification section 12 enters high temperature incineration section 13 by flue gas fairlead 23, carries out therein high temperature oxygen-excess combustion.High temperature incineration section 13 comprises the burning sub-chamber 2901,2902,2903,2904,2905,2906 of 6 cube structures, it is close to arrangement mutually, the common burning chamber forming as the cube structure of high temperature incineration section 13 main bodys, and 6 sub-chamber's perforate connections successively; High temperature incineration section 13 also comprises the secondary air channel 18 being embedded in each sub-chamber's sidewall refractory material; Sub-chamber 2901 comprises gas approach 31, and the flue gas that pyrolytic gasification section 12 produces enters high temperature incineration section 13 thus; Sub-chamber 2906 comprises exhanst gas outlet, and after burning, flue gas leaves high temperature incineration section 13 thus, as shown in Fig. 6-8.The overfire air fan 8 that secondary air channel 18 connects outside gasification burning equipment 5, thus by overfire air fan 8, can in the burning chamber of high temperature incineration section 13, provide air.In sub-chamber 2901 and 2902 s' connected entrance, be provided with the burner 3001 of Secondary Air air inlet 44 and hollow cylindrical, define secondary air chamber 33 therebetween, burner 3001 comprises spray wind hole 34, extraneous air is by entering cylindrical burner 3001 centers through secondary air channel 18, Secondary Air air inlet 44, secondary air chamber 33, spray wind hole 34 successively, for the flue gas through burner supplements air to burn.At sub-chamber 2902 and 2903,2904 and 2905,2905 and 2906 Secondary Air air inlet and burners that are also provided with above-mentioned same structure, as shown in Fig. 6-8,4 comprise that vertically columnar structured burner 3001,3002,3003,3004 its vertical cylindrical structures are perpendicular to horizontal plane, and the setting height(from bottom) of 4 burners is identical.High temperature incineration section 13 also comprises just expansion chamber 52, and Qi Yu sub-chamber 2901 is communicated with, and for collecting, burns the dust that chamber flue gas is carried secretly.

Gasification burning equipment 5 also comprises 1 grade of expansion chamber 24, and Qi Yu sub-chamber 2906 is communicated with.Flue gas burns after sub-chamber burns and has removed most organic pollutions and carbon residue through each, then from exhanst gas outlet 32, leaves high temperature incineration section 13, enters 1 grade of expansion chamber 24.After entering 1 grade of little sedimentation dedusting of expansion chamber 24, by flue gas inlet tube, enter flue gas chuck 17, flue gas chuck 17 dresses cover in drying 55 peripheries, by the high-temperature flue gas of flowing through wherein, the rubbish in drying 55 are dried.The smoke outlet tube 28 of flue gas chuck 17 connects waste heat boiler 26, flue gas enters waste heat boiler 26 heating waters (heat exchange), cooling and thermal energy storage have been realized, then enter 2 grades of expansion chambers, it comprises that 3 sub-expansion chambers 2501,2502,2503 are communicated with successively, flue gas carries out sedimentation through each sub-expansion chamber, remove after most flue dust, again enter waste heat boiler 26 and carry out heat exchange, become low-temperature flue gas, finally from the exhanst gas outlet of gasification burning equipment 5, by air-introduced machine 9, extract out and drain into atmosphere through chimney 10.

The garbage incineration process of above garbage combustion device comprises the following steps:

Step 1, manually by rubbish heap storage 1 or need rubbish to be processed push magnetic separation conveying device 2, sorting iron compound.

Step 2, the rubbish after magnetic separation conveying device 2 sorting is sent into breaker 3 continuously or in batches carry out fragmentation, be crushed to and be less than 300mm size.

Rubbish after step 3, fragmentation is sent into the dryer section 11 of gasification burning equipment 5 by feed conveying device 4.

Step 4, rubbish are dried in dryer section 11, and the thermal source of oven dry is the high-temperature flue gas in high temperature incineration section 13, and the low boiling volatile ingredient in rubbish is separated out, and the rubbish after drying falls into pyrolytic gasification section 12.The volatile matter producing in drying course is sent into pyrolytic gasification section 12 through upper dry gas fairlead 15, lower dry gas fairlead 16, dry gas house steward 6 by primary air fan 7; Can pass through the rotation of drying 55 different directions, reach and allow rubbish accelerate to fall into pyrolytic gasification section 12 or maintain dryer section 11 to extend drying time simultaneously.

Step 5, the rubbish that falls into pyrolytic gasification section 12 are carried on fire grate 20, by primary air fan 7, in pyrolytic gasification section 12, provide air to burn, and make rubbish generation pyrolytic gasification, carry out fuel gas and form and after-flame process solid-state, liquid combustible.What in pyrolytic gasification section 12, carry out is pyrolytic gasification and the burning of anaerobic condition, and operating temperature is controlled at below 800 ℃.

The flue gas producing after step 6, the interior waste incineration of pyrolytic gasification section 12 enters high temperature incineration section 13 through flue gas fairlead 23.

Step 7, with the high-temperature flue gas of flare or Mars, by flue gas fairlead 23 levels, enter 2901,90 ° of sub-chamber and turn to, enter sub-chamber 2902, acutely burning after upwards supplementing air by burner 3001; In sub-chamber 2902,180 ° of flue gases turn to, and enter sub-chamber 2903 after again supplementing air downwards by burner 3002; Along continuous straight runs enters sub-chamber 2904 afterwards, 90 ° turn to again, upwards by burner 3003, after supplementing air for the third time, enter sub-chamber 2905,180 ° turn to again, enter sub-chamber 2906 downwards by after 3004, the four supplementary air of burner, in cavity 2906, the combustible component in flue gas runs out of substantially.What flue gas carried out in this process is oxygen-excess combustion, and the operating temperature of each sub-chamber is controlled at 900-1100 ℃.In whole process, combustion flame is elongated, and every grade of high temperature rotational flow air that burner all can provide supplements the oxygen in flue gas, makes the fully burning under the oxygen enrichment of dual firing chamber, hot conditions of combustible that gasification produces; Air-flow is vortex and advances, and has extended the time of staying of flue gas in high temperature section, and flue gas surpasses 2.0s in the time of staying of dual firing chamber, and incineration temperature reaches more than 900 ℃, can make the completing combustions such as polychlorinated biphenyl material, carbon residue decompose, and makes dioxin residual quantity few.

Step 8, flue gas, after the burning in Ge sub-chamber, enter 1 grade of little sedimentation dedusting of expansion chamber 24.

Step 9, flue gas leave 1 grade of expansion chamber 24 and enter flue gas chuck 17, and the temperature by flue gas heats drying 55, to realize the oven dry to rubbish in it.

Step 10, flue gas enter waste heat boiler 26 then, as the water in thermal source heating waste heat boiler 26, to reach the object of cooling and storage power.

Step 11, flue gas leave waste heat boiler 26 and are introduced into sedimentation sub-chamber 2501 under backward, 90 ° turn to and enter sub-chamber 2502 again, 180 ° turn to and enter sub-chamber 2503 again, complete successively after the dedusting in 3 sedimentation sub-chamber, making progress 90 ° to turn to enters waste heat boiler 26 again, cooling and energy storage.

Step 12, flue gas leave after waste heat boiler 26 again, from the exhanst gas outlet of gasification burning equipment 5, by air-introduced machine 9, are extracted out and are drained into atmosphere through chimney 10.

Fume emission detects and shows: do not arranging in bag-type dust situation, in the flue gas of processing procedure discharge, all contaminants index is all better than national Specification, wherein dust is lower than 55mg/m3, carbon monoxide is lower than 15mg/m3, sulfur dioxide is lower than 4mg/m3, and nitrogen oxide is lower than 10mg/m3, and hydrogen chloride is lower than 1.5mg/m3, especially crucial toxicity index bioxin, lower than 0.03ngTEQ/m3, is only 1/3 left and right of 1/33 and the European Union's II standard regulation of existing standard GB/T 18485-2001.

Flying dust bioxin content 0.049 μ gTEQ/kg, the limit value of the 3 μ gTEQ/kg that stipulate much smaller than < < consumer waste filling and embedding pollution control criterion (GB16889-2008) > >.

The embodiment of incinerator (pyrolytic gasification section)

As shown in Figure 9 and Figure 10, be a preferred embodiment of incinerator of the present utility model, it is also the pyrolytic gasification section as above-mentioned garbage combustion device simultaneously.Comprise cylindrical furnace 71 that refractory material makes, fire grate 20, airduct 22, flue gas fairlead 23, dividing plate 46, except grit chamber 21 and clean-out door 45.Fire grate 20 is arranged on the below in the burner hearth of incinerator.Fire grate 20 comprises fire grate segment 35, rotating turning cylinder 36, even turning cylinder 36 tops that are fixedly mounted on spaced apart of fire grate segment 35, and both form the structure of similar umbrella, and fire grate segment 35 belows are provided with dividing plate 46, define therebetween except grit chamber 21.One time airduct 22 is embedded in the furnace wall refractory of fire grate 20 outermost edge tops, is annular, and it is communicated with inside and outside incinerator, and outside is connected with the air blast being arranged on outside incinerator, to blow in stove.One time airduct 22 has part tube wall to be exposed in incinerator, comprises a plurality of fresh air inlets 43 on it, and air is sent in incinerator from fresh air inlet 43.The fire grate 20 tops flue gas fairlead 23 that suspended, for sending out the flue gas producing after waste incineration in incinerator.

Incinerator top is provided with opening, rubbish enters in stove from incinerator top, at the radiation heat transfer of burner hearth high-temperature refractory, under the heat convection of high-temperature flue gas and three kinds of mode effects of high temperature rubbish bed of material heat conduction heat exchange, complete dry, pyrolysis, gasification and burning process, furnace cavity from top to down, can be divided into drying layer, pyrolytic gasification layer, burning zone and ash bed.

Air is sent into airduct 22 one time through air blast, in an airduct 22, after the heating of high temperature tube wall, fresh air inlet 43 from airduct 22 madial walls, along perforate direction, enter the rubbish bed of material on fire grate inner, the perforate direction of fresh air inlet 43 can select horizontal direction perpendicular to tube wall, with horizontal plane become to make progress 45 ° of directions or become downward 45 ° of upward directions with horizontal plane.Main purpose is for burning zone provides combustion air, and expansion burning zone thickness, maintains the temperature levels in stove.While also can provide oxygen for the after-flame of carbon residue in ash bed with the air that horizontal plane downward direction at 45 ° enters.

The flue gas fairlead 23 that fire grate 20 tops suspend, vertically downward, turning cylinder 36 is departed from position to its one end mouth of pipe slightly.Match with the air intake mode of above-mentioned air, the flue gas that makes to gasify is gathered to center, can discharge in time gasification flue gas.And flue gas fairlead 23 itself also can be as heat-transfer area, auxiliary drying garbage and pyrolysis.

Fire grate 20 can be driven by variable-frequency motor, and rotating speed can regulate according to combustion position.In fire grate rotation process, lime-ash is broken, and the gap by fire grate segment 35 falls into except grit chamber 21, has realized continuous slagging-off.

Except lime-ash in grit chamber 21 need be opened, clean-out door 45 is rear manually to be removed.Dividing plate 46 tilts to clean-out door 45 directions, so that lime-ash is deposited in clean-out door annex, is convenient to artificial cleaning.

Multi-cavity flue gas burns the embodiment of chamber (high temperature incineration section)

As shown in Fig. 6-8, be the preferred embodiment that multi-cavity flue gas of the present utility model burns chamber, it is also the high temperature incineration section as above-mentioned garbage combustion device simultaneously.2901,2902,2903,2904,2905,2906,4 of sub-chamber that comprise 6 cube structures of being made by refractory material comprise columnar structured burner 3001,3002,3003,3004, and secondary air channel 18.

Wherein, the upside sidewall of sub-chamber 2902,2905 is domes of projection.

The width of 6 sub-chamber is identical, the length of sub-chamber 2901,2903,2904,2906 and highly identical, and the length of sub-chamber 2902,2905 and highly identical and their length are all the other 4 sub-chamber twices of length separately.

The rear side of sub-chamber 2901 is near the front side of sub-chamber 2903, the upside of sub-chamber 2901 and sub-chamber 2903 is near the downside of sub-chamber 2902, sub-chamber 2902 right sides are near the left side of sub-chamber 2905, the right side of sub-chamber 2903 is near the left side of sub-chamber 2904, the rear side of sub-chamber 2906 is near the front side of sub-chamber 2904, the upside of sub-chamber 2904 and sub-chamber 2905 is near the downside of sub-chamber 2905, the left side of sub-chamber 2906 is near the right side of sub-chamber 2901, and 6 sub-chamber's perforate connections successively (2901～2906 order), and the common main body that forms the multi-cavity flue gas burning chamber with cube structure, the left side sidewall of sub-chamber 2901 comprises gas approach 31, the right sidewall of sub-chamber 2906 comprises exhanst gas outlet 32.

Secondary air channel 18 is embedded in the sidewall of each sub-chamber (equally also can in sidewall refractory material perforate form), and it is communicated with multi-cavity flue gas and burns inside and outside chamber.Can be connected with outside air blast, to multi-cavity flue gas, burn in chamber air is provided.Secondary air channel 18 comprises Secondary Air air inlet 44, the air outlet as it in multi-cavity flue gas burns chamber.Burner 3001,3002,3003,3004 is separately positioned in sub-chamber 2901 and 2902, sub-chamber 2902 and 2903, sub-chamber 2904 and 2905, sub-chamber 2905 and 2906 s' connected entrance.Secondary air inlet 44 is also arranged in 4 connected entrances between the residing sub-chamber of burner, between secondary air inlet 44 burner corresponding with it, defines annular secondary air chamber 33.And on the vertical columnar structured sidewall of burner, have spray wind hole 34, spray wind hole 34 is communicated with secondary air chamber 33He sub-chamber, be Secondary Air air inlet 44, secondary air chamber 33, spray the path that wind hole air of 34 formation enters multi-cavity flue gas burning chamber, thereby can in multi-cavity flue gas burning chamber, provide air-breathing.The installation of each burner meets that it is vertically columnar structured perpendicular to horizontal plane, and each burner setting height(from bottom) is identical.

As shown in Figure 11 and Figure 12, on the columnar structured sidewall of burner, have 10 row 3 rows totally 30 spray wind holes 34, and perforate direction is on the cylindrical shape Inner of burner sidewall tangential, thereby the air after preheating in annular secondary air chamber tangentially sprays into cylindrical burner center via spray wind hole 34, form eddy current, make can acutely mix between air and flue gas, reduce excess air factor, reduce smoke evacuation volume and flue gas flow rate, thereby reduce the fume amount that flue gas carries.

With the high-temperature flue gas of flare or Mars, by gas approach 31, enter 2901,90 ° of sub-chamber and turn to, enter sub-chamber 2902, acutely burning after upwards supplementing air by burner 3001; In sub-chamber 2902,180 ° of flue gases turn to, and enter sub-chamber 2903 after again supplementing air downwards by burner 3002; Along continuous straight runs enters sub-chamber 2904 afterwards, 90 ° turn to again, upwards by burner 3003, after supplementing air for the third time, enter sub-chamber 2905,180 ° turn to again, enter sub-chamber 2906 downwards by after 3004, the four supplementary air of burner, in cavity 2906, the combustible component in flue gas runs out of substantially.Finally by exhanst gas outlet 32, flow out multi-cavity flue gas and burn chamber.

In supplementing air event, be embedded in the secondary air channel 18 in sub-chamber's sidewall, the heat pre-heated flow of utilizing sidewall refractory material savings is through air wherein.

The embodiment of flue gas fairlead

As shown in figure 13, be a preferred embodiment of flue gas fairlead of the present utility model, it is also the flue gas fairlead as above-mentioned garbage combustion device simultaneously, for being communicated with pyrolytic gasification section and high temperature incineration section.Flue gas fairlead 23 comprises flange 51, blower cover 48, has the induced duct 47 of 90 ° of corners.Blower cover 48 is round mouth diverging ducts, and one end of osculum is connected with one end of induced duct 47.On the sidewall of blower cover 48, be evenly distributed with many strip holes 49, between each strip hole 49, reinforcement 50 be housed, the tube wall of the blower cover 48 that reinforcement 50 is in contact with it is perpendicular.

As shown in Fig. 9 and Figure 14, flue gas fairlead 23 is arranged on gasification burning furnace interior, is suspended at fire grate 20 tops, slightly departs from the RC position of fire grate.The least significant end of blower cover 47 is arranged in airduct of annular 22 and surrounds.By flange 51, induced duct 47 is fixed on incinerator inwall.In running, flue gas fairlead 23 is submerged in material, from incinerator bottom, draws flue gas.The negative pressure that air-introduced machine by as exhaust apparatus produces, gasification flue gas and flare can flow through horn mouth and the strip hole 49 of blower cover 48, via the fairlead 47 of 90 degree corners, send into follow-up burning chamber.The reinforcement 50 that adjacent strip hole is 49, can alleviate that rubbish stops up strip hole 49 and the situation that causes flue gas fairlead area significantly to reduce.

The embodiment of built-in drying garbage unit

As shown in Figure 15 and Figure 16, be a preferred embodiment of built-in drying garbage of the present utility model unit, it is also the dryer section as above-mentioned garbage combustion device simultaneously.Comprise front canned paragraph 53, feed hopper 14, feed pipe 63, drying 55, flue gas chuck 17, flight 19, rear canned paragraph 54, tremie pipe 61, support 60, driving wheel 56, driving gear 57, driven pulley 58, driven support roller 59.

Front canned paragraph 53 and rear canned paragraph 54 are fixedly connected on respectively the two ends of drying 55.Feed hopper 14 is fixedly mounted on front canned paragraph 53, enters the entrance of drying unit as rubbish.Feed pipe 63 devices are in front canned paragraph 53, and its two ends connect respectively feed hopper 14 and drying 55.Tremie pipe 61 is fixedly mounted on rear canned paragraph 54, as the outlet after drying garbage.Flue gas chuck 17 is set in the stage casing part of drying 55, and it also comprises flue gas inlet tube 27 and smoke outlet tube 28, for the turnover of thermal source flue gas.The overall structure that drying 55 and flue gas chuck 17 form is obliquely installed, and is arranged on support 60, and support 60 is arranged at respectively two ends and the middle part of drying 55, the direct support drying 55 in two ends, middle part direct support flue gas chuck 17.On the support 60 at the two ends of drying 55, be separately installed with driving gear 57 and driven support roller 59.Correspondingly, be installed with the driving wheel 56 and the driven pulley 58 that match with driving gear 57 and driven support roller 59 respectively on drying 55, driving wheel 56 is arranged on the upper end of the drying 55 that tilts to install, and driven pulley 58 is arranged on the lower end of drying 55.Driving gear 57 is driven and is driven driving wheel 56 to rotate by variable-frequency motor, reduction box, realize drying 55 positive and negative two to rotation, drying 55 lower ends rely on driven support roller 59 and driven pulley 58 to coordinate and rotate.By the shaped angles setting (being similar to the mixing drum of concrete mixer) of flight 19, so that the rubbish after preheating and drying during drying 55 forward rotation drops to pyrolytic gasification section by deadweight; While rotating backward, extend the time of staying of rubbish in drying 55, make dry more abundant.On feed pipe 63, also comprise dry gas fairlead 64, the aqueous vapor and the volatile ingredient that for discharging drying garbage process, produce.Correspondingly, canned paragraph 53 also comprises dry gas outlet 72, for connecting dry gas fairlead.

Rubbish is delivered on front canned paragraph 53 feed hopper 14 of installing by conveyer, slipped feed pipe 63, enters drying 55.High-temperature flue gas enters flue gas chuck 17 from flue gas inlet tube 27, and by smoke outlet tube 28, is discharged after drying 55 heat exchange.Flight 19 in drying 55, in its rotation process, can turn over and copy rubbish, avoids sanitary fill in drying 55 bottoms, makes rubbish at the interior thermally equivalent of drying 55.After drying garbage, enter the tremie pipe 61 arranging on rear canned paragraph 54, send into pyrolytic gasification section.The dry dry gas producing, contains steam, low boiling combustible gas etc., by the dry gas fairlead 64 having on feed pipe 63, is discharged after drying, by being connected to dry gas fairlead and the primary air fan of dry gas outlet 72, sends into pyrolytic gasification section.

Whole drying unit is arranged on the top of garbage combustion device by support 60.

Front canned paragraph 53, flue gas chuck 17, rear canned paragraph 54 respectively and between drying 55, also adopt high temperature flexible sealing structure 62 to seal, flue gas while avoiding drying 55 to rotate, dryly produce escaping of gas.As shown in figure 17, high temperature flexible sealing structure 62 is fitted and is formed successively by rear mounting flange 67, flexible sealing fin 66, front mounting flange 65.The internal diameter of front mounting flange 65 equates with flexible sealing fin 66 internal diameters, the external diameter of rear mounting flange 67 equates with the external diameter of flexible sealing fin 66, rear mounting flange 67 and front mounting flange 65 are made by metal material, and flexible sealing fin 66 adopts high temperature resistant elastomeric material to make.

The embodiment of incinerator supply air system

As shown in figure 18, be a preferred embodiment of supply air system of the present utility model, it is also a wind supply air system as the pyrolytic gasification section of above-mentioned garbage combustion device simultaneously.Comprise air blast 73, the airduct 22 being connected with air blast 73.Air blast 73 is arranged on pyrolytic gasification section 12 outsides.One time airduct 22 is arranged in the pyrolytic gasification section 12 with cylindrical furnace, and part is embedded in the sidewall of pyrolytic gasification section 12.One time airduct 22 is 270 ° of circular arcs, and is arranged on the top of fire grate 20 outermost edge.An airduct 22 is exposed on the tube wall in pyrolytic gasification section 12 and has fresh air inlet 43, and air is sent into pyrolytic gasification section 12 inside by fresh air inlet 43.The wind pushing hole of an airduct 22 has three row, and from top to bottom, the first row is along the radially perforate upward of annular, direction and horizontal plane are at 45 °, and the second row is along annular radial horizontal bore, and the 3rd row is along the radially perforate down of annular, direction and horizontal plane are at 45 °, as shown in Figure 19 and Figure 20.This perforate mode can guide the flue gas of fire grate 20 tops to gather to center, is convenient to flue gas fairlead 23 suction flue gases.Air in an airduct 22, before pyrolytic gasification section 12, by the 12 sidewall refractory material preheatings of pyrolytic gasification section, thereby can maintain fire box temperature.

Vertical-type garbage incinerator swinging fire grate

As shown in figure 21, be a preferred embodiment of swinging fire grate of the present utility model, it is also as the fire grate in the pyrolytic gasification section of above-mentioned garbage combustion device simultaneously.Comprise fire grate segment 35, turning cylinder 36, dust retaining cone 37, dust cap 38, stop collar 39, sprocket wheel 40, bearing 41, key 42.A plurality of fire grate segments 35 turning cylinder 36 tops that are welded on uniformly spaced apart, form umbrella-shaped structure, and bearing 41 is arranged on turning cylinder 36 bottoms, thereby forms whole rotatable round platform fire grate.Dust retaining cone 37 is equipped with at turning cylinder 36 tops, dust cap 38 is equipped with at middle part, prevents that lime-ash from dropping in the gap of rotational structure, thereby causes turning cylinder 36 wearing and tearing.Sprocket wheel 40 is arranged on the bottom of turning cylinder 36 and is positioned at bearing 41 tops, and fire grate drives decelerator by variable-frequency motor, and drives turning cylinder 36 to realize rotation by sprocket wheel 40.Stop collar 39 is arranged on turning cylinder 36 middle parts and is positioned at dust cap 38 belows, and key 42 is arranged on turning cylinder 36 bottoms and between sprocket wheel 40 and bearing 41.

As shown in figure 22, the integrated leather boots shape pentagonal configuration that fire grate segment 35 consists of jointly the boots mouth end 68 of rectangular configuration and the boots bottom of ladder structure of right angle 69, and leather boots shape pentagonal configuration has an acute angle, boots mouth end 68 is fixedly connected with turning cylinder, fire grate segment 35 also comprises a plurality of holes 70, along fire grate segment bearing of trend, be arranged in order, and along boots mouth end 68 to boots bottom 69 directions, aperture increases successively.

In fire grate slow circumvolve process, the rubbish dropping on fire grate is imposed on the formed grate surface of fire grate segment 35 equably, lime-ash after waste incineration is simultaneously broken, and the gap that the hole 70 from fire grate segment 35 or fire grate segment are 35 falls into the grit chamber that removes of fire grate segment 35 belows.

More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area just can be made many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims

1. for a supply air system for incinerator, it is characterized in that, comprise blower fan, airduct; Described blower fan arranges outside described incinerator, and is connected with described airduct; A described airduct part is embedded in the sidewall of described incinerator, a part is exposed in described incinerator; Described airduct is exposed on the tube wall in described incinerator and comprises fresh air inlet.

2. supply air system as claimed in claim 1, is characterized in that, described incinerator is cylindrical structural, and described airduct is annular.

3. supply air system as claimed in claim 2, is characterized in that, described airduct level is installed.

4. supply air system as claimed in claim 3, is characterized in that, described airduct is 270 ° of annulars.

5. supply air system as claimed in claim 4, is characterized in that, described fresh air inlet has 3 row in vertical direction.

6. supply air system as claimed in claim 5, is characterized in that, the described fresh air inlet of the top a line is along the radially perforate upward of described airduct; The described fresh air inlet of middle row is along the radial level perforate of described airduct, and the most described fresh air inlet of below a line is along the radially perforate down of described airduct.

7. supply air system as claimed in claim 6, is characterized in that, the perforate direction of the top a line and the most described fresh air inlet of below a line is at 45 ° with horizontal plane respectively.

8. the supply air system as described in as arbitrary in claim 1-7, is characterized in that, described blower fan is air blast.