CN204100255U - A kind of built-in drying garbage unit - Google Patents

A kind of built-in drying garbage unit Download PDF

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Publication number
CN204100255U
CN204100255U CN201420230143.7U CN201420230143U CN204100255U CN 204100255 U CN204100255 U CN 204100255U CN 201420230143 U CN201420230143 U CN 201420230143U CN 204100255 U CN204100255 U CN 204100255U
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China
Prior art keywords
drying
chamber
flue gas
air
sub
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CN201420230143.7U
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Chinese (zh)
Inventor
薛冬
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Wuxi Gao Er Environmental Protection Technology Co Ltd
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Wuxi Gao Er Environmental Protection Technology Co Ltd
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Priority to CN201410027222 priority Critical
Priority to CN201410027222.2 priority
Application filed by Wuxi Gao Er Environmental Protection Technology Co Ltd filed Critical Wuxi Gao Er Environmental Protection Technology Co Ltd
Priority to CN201420230143.7U priority patent/CN204100255U/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/46Recuperation of heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/10Drying by heat
    • F23G2201/101Drying by heat using indirect heat transfer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/40Gasification

Abstract

The utility model discloses a kind of built-in drying garbage unit, comprise the drying be obliquely installed, be sleeved on the flue gas chuck of drying outside, heating source is flue gas, and main process is the precipitation of drying garbage, low boiling volatiles.Adopt external oven dry, cigarette material is separated.Drying can be carried out the rotation of positive and negative both direction by Frequency Drive device drives.Also be provided with flight in drying, its realization drives dried rubbish when drying rotates forward, drop to combustion zone by deadweight; During reverse rotation, extend the time of staying of rubbish in drying, make drying more abundant.

Description

A kind of built-in drying garbage unit
Technical field
The utility model relates to rubbish technical field of heat treatment, 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.But while improving along with peasant's living standard, also occurred many inharmonious parts, production, house refuse are arbitrarily stacked, and cause the Around the house of peasant to become soot, farmland near house has also become refuse depot, and the road of walking is flooded with motley refuse bag especially.Ministry of Public Health's investigation display, current rural area everyone house refuse amount produced every day is 0.86 kilogram, the annual house refuse amount in rural area, the whole nation is close to 300,000,000 tons, " rubbish encloses village " is formed, this directly threatens the productive life land used of peasant, threaten the living environment of peasant, threaten the improvement of the public things in village.
In the process of refuse collection, transport, process etc., need a large amount of funds, due to rural residence dispersion, have inconvenient traffic, particularly in some mountain areas, the cost processed rubbish is higher.And the most village and town finance difficulty of China, unablely bear huge garbage disposal expense, be difficult to raise garbage disposal fund.Current China rural garbage process the realistic problem that faces in the urgent need 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 equipment.
The garbage burning processing method adopted both at home and abroad at present has: the multiple 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 refuse thermal value is low or refuse thermal value fluctuation is larger, combustion product carbon containing is more, burn insufficient, when refuse thermal value is higher, easily produce a large amount of NOx, and to occur burning out on fire grate or fire grate the phenomenons such as coking and blocking air vent, 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 or molten state form.Rotary kiln ignition temperature is high, there is the seal box high temperature deformation problem of rotatable parts, and liquid state or molten state residue are to lining wear severity in addition, make rotary kiln working life shorter.Fluidized bed garbage combustion is applicable to large scale rubbish process, will carry out the series of preprocessing such as fragmentation and sorting before rubbish enters stove burning disposal, cause equipment manufacturing cost higher like this, operating cost increases, fluid unit cost costly simultaneously, which also limits its application.
Gasifying to rubbish and second-time burning is called as third generation incineration technology, is incineration firing process more advanced in the world at present, 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 dryer section (or claim first cavity), the pyrolytic gasification section (or claiming the second cavity, a combustion room, incinerator) for burning away the refuse, the high temperature incineration section (or claiming dual firing chamber) for being burned further by the flue gas burning generation in pyrolytic gasification section of drying garbage, 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 entering 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 the top of pyrolytic gasification section or top.
Further, dry channel is obliquely installed, and the connected entrance of dryer section and pyrolytic gasification section is lower than charging aperture, and rubbish is reliably conducted oneself with dignity and fallen into pyrolytic gasification section.
Further, dry channel is columnar drying.
Further, drying can along the tangential rotation of its cylinder, namely with columnar central axis for axle rotates.
Further, be provided with flight in drying, when drying rotates along different directions, flight coordinates the following 2 kinds of functions of realization respectively:
(1) rubbish is driven to fall into pyrolytic gasification section;
(2) rubbish is stoped 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, thus by the gas in dryer section by dry gas fairlead, can be sent in pyrolytic gasification section through primary air piping by primary air fan.
Further, dry gas fairlead comprises dry gas fairlead, lower dry gas fairlead, dry gas house steward, and upper one end of dry gas fairlead is connected with the upper end of dryer section, namely near charging aperture; Lower one end of dry gas fairlead is connected with the lower end of dryer section, the i.e. connected entrance of close dryer section and pyrolytic gasification section, the other end of upper dry gas fairlead be connected with the other end of lower dry gas fairlead converge after be communicated with one end of dry gas house steward again, the i.e. structure of a threeway, the other end of dry gas house steward is connected with primary air fan.
Pyrolytic gasification section comprises primary air piping, and primary air piping is communicated with inside and outside pyrolytic gasification section, and primary air fan is connected with primary air piping, thus in pyrolytic gasification section, provides air through primary air piping by primary air fan.
Further, primary air piping is partly or entirely embedded in the sidewall of pyrolytic gasification section, ensures the air outlet of once airduct in pyrolytic gasification section simultaneously.
Further, primary air piping comprises multiple fresh air inlet, and described fresh air inlet is exposed in described pyrolytic gasification section, and namely portions is exposed in pyrolytic gasification section, and it has fresh air inlet as the air outlet of primary air piping in pyrolytic gasification section.
Further, pyrolytic gasification section adopts vertical and cylindrical structure.
Further, primary air piping is circular horizontal setting.
Further, pyrolytic gasification section comprises fire grate, and fire grate is entered the rubbish of pyrolysis gas section by dryer section for carrying.
Further, fire grate is not higher than whole fresh air inlets.Which ensure that the fresh air inlet of the once airduct in dumping region.
Further, fire grate comprises fire grate segment, rotating turning cylinder, and the distribution of fire grate segment uniform intervals is fixed on turning cylinder top, and the lime-ash produced after driving waste incineration when fire grate segment rotates with turning cylinder falls into the below of fire grate segment.
Further, pyrolytic gasification section comprises dividing plate, except grit chamber, dividing plate is arranged at below fire grate segment, defines except grit chamber between fire grate segment and dividing plate.
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 side, and the lime-ash fallen can be made like this 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 towards in burning chamber.
Further, flue gas fairlead is not less than whole fresh air inlets.
Further, flue gas fairlead is arranged on above fire grate.
Further, flue gas fairlead, in " 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 also be fixedly mounted on pyrolytic gasification section and 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, thus in high temperature incineration section, provides air through secondary air channel by overfire air fan, particularly provides air to burning chamber; Burn chamber to be also communicated with flue gas chuck, flue gas chuck is connected with exhaust apparatus, is heated rubbish in dryer section by the high-temperature flue gas of flue gas chuck, and the flue gas in high temperature incineration section is discharged gasification burning equipment by exhaust apparatus.
Further, burn chamber and comprise multiple 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; 1st sub-chamber is communicated with the 2nd sub-chamber, the 2nd sub-chamber is communicated with the 3rd sub-chamber ... K-1 sub-chamber is communicated with K sub-chamber; 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, the sub-chamber of 6 cube structures is adopted jointly to form the burning chamber of a cube structure.
Further, secondary air channel to be embedded in the sidewall of sub-chamber or to be limited by the sidewall of sub-chamber and formed (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 on the sub-chamber's sidewall limiting connected entrance.
Further, burn chamber and comprise burner, burner comprises spray air holes, burner is arranged in the connected entrance between the sub-chamber being provided with Secondary Air air inlet, secondary air chamber is defined between Secondary Air air inlet and burner, spray air holes is communicated with secondary air chamber and burns chamber, and namely Secondary Air air inlet, secondary air chamber, spray air holes form an air and enter the path burning chamber.
Further, the installation direction of burner is identical, i.e. 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, is limited by the sidewall locations of sub-chamber.
Further, burner comprises vertically columnar structured, and spray air holes is arranged on columnar structured sidewall, the perforate direction of spray air holes columnar structured Inner side tangential on, i.e. the cylinder that limits of columnar structured medial surface tangential on.
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 is communicated with the 1st sub-chamber.
Further, first expansion chamber is arranged on below described burning chamber.
In preferred embodiment of the present utility model, first expansion chamber is communicated with the 1st sub-chamber, and settles thereunder.
Further, gasification burning equipment also comprises 1 grade of expansion chamber, 1 grade of expansion chamber is communicated with pyrolytic gasification section, flue gas chuck respectively, and now pyrolytic gasification section is not directly communicated with flue gas chuck, midfeather 1 grade of expansion chamber.
Further, for the burning chamber comprising K sub-chamber, 1 grade of expansion chamber is communicated with K sub-chamber, flue gas chuck respectively, 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, 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, 2 grades of expansion chambers are communicated with flue gas chuck and are connected with exhaust apparatus, and now flue gas chuck is not directly connected with exhaust apparatus, midfeather 2 grades of expansion chambers.
Further, as 2 heat exchanges need be carried out, then heat-exchange device comprises 4 interfaces, interface 1, interface 2, interface 3, interface 4 respectively, there is path between interface 1 and interface 2, between interface 3 and interface 4, have path, flue gas chuck connecting interface 1,2 grades of expansion chambers connecting interface 2 and interface 3 respectively, exhaust apparatus connecting interface 4.
Further, 2 grades of expansion chambers comprise multiple 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; 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, have employed 3 sedimentation sub-chamber.
Further, for multiple sedimentation sub-chamber, as 2 heat exchanges need be carried out, then heat-exchange device comprises 4 interfaces, interface 1, interface 2, interface 3, interface 4 respectively, there is path between interface 1 and interface 2, between interface 3 and interface 4, 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 realizes cooling by carrying out heating to the water in boiler, and stores heat energy.
Further, exhaust apparatus is air-introduced machine and chimney.The tail gas of gasification burning equipment is extracted out by air-introduced machine, then enters air 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 garbage inlet end sent into by the rubbish after fragmentation.
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 conveying arrival end and the conveying port of export, puts into rubbish from conveying arrival end, by the conveying port of export, rubbish is sent into breaker.
Further, magnetic separation conveying device comprises electric belt conveyer, magnet, magnet arrangement above electric belt conveyer 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.
Adopt the burning process of above-mentioned garbage combustion device, comprise 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 sends 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 produced in drying course sends into pyrolytic gasification section by primary air fan; By the rotation of pyrolytic gasification section different directions, can reach and allow rubbish accelerate to fall into pyrolytic gasification section or maintain dryer section to lengthen drying time;
Step 5, the rubbish falling into pyrolytic gasification section are carried on fire grate and burn, and provide air-breathing by primary air fan, and air by primary air piping, and enters pyrolytic gasification section by the air outlet (wind pushing hole) of primary air piping;
The flue gas produced after step 6, waste incineration enters the burning chamber of high temperature incineration section through flue gas fairlead;
Step 7, the flue gas each sub-chamber successively through burning chamber burns, air-breathing is provided by overfire air fan, air enters burning chamber by the spray air holes of secondary air channel, Secondary Air air inlet, secondary air chamber, burner successively, and in this process, just expansion chamber have 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, realize the oven dry to rubbish in dryer section by the temperature of flue gas;
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, successively after each sedimentation sub-chamber dedusting of 2 grades of expansion chambers, again enter heat-exchange device, again cooling and energy storage;
Step 12, flue gas discharge gasification burning equipment by exhaust apparatus.
Further, in step 1, magnetic separation conveying device comprises electric belt conveyer, magnet, magnet arrangement above electric belt conveyer 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 carry out in pyrolytic gasification section is pyrolytic gasification and the burning of anaerobic condition, and operating temperature is less than 800 DEG C.
Further, fire grate comprises fire grate segment, rotating turning cylinder, and the distribution of fire grate segment uniform intervals is fixed on turning cylinder top, and in step 5, the lime-ash produced after driving waste incineration when fire grate segment rotates with turning cylinder falls into the below of fire grate segment.
Further, pyrolytic gasification section comprises dividing plate, except grit chamber, clean-out door, dividing plate is arranged at below fire grate segment, defines except grit chamber between fire grate segment and dividing plate, can open clean-out door cleaning lime-ash after burning terminates.
Further, in step 7, now flue gas carries out oxygen-excess combustion in incineration chambers, and the operating temperature range of burning chamber is 900-1100 DEG C.
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.The tail gas of gasification burning equipment is extracted out by air-introduced machine, then enters air 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 the adjustment of corresponding configuration for actual conditions, now also can draw the burning process step adapted with adopted configuration from above step.
Garbage combustion device of the present utility model without the need to auxiliary igniter, only need use conventional method to make to be in fired state in stove in burning process before burning process, as used timber, gasoline etc.
Garbage combustion device of the present utility model has following beneficial effect:
1, emission compliance non-secondary pollution, pyrolyzing, gasifying and incinerating process completes at the strict control temperature in each stage and the condition of air capacity, and 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, be of wide application.
4, reclaim the economy of energy profitable, fully can reclaim the heat energy of rubbish, produce hot water, steam, economic benefit is very remarkable, and the investment payback time is short.
The utility model additionally provides a kind of incinerator, as above-mentioned garbage combustion device pyrolytic gasification section (or claim the second cavity, one combustion room), comprise body of heater, fire grate, primary air piping, 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 the distribution of fire grate segment uniform intervals is fixed on turning cylinder top; Dividing plate is arranged on below fire grate segment, defines except grit chamber therebetween; Sidewall around the body of heater except grit chamber is provided with clean-out door; Primary air piping is communicated with inside and outside described body of heater, and it can connect outside air blast, blows in stove; Flue gas fairlead is fixedly mounted on the sidewall of body of heater, and is positioned at above fire grate.
Further, body of heater top or top are provided with opening, can put into the rubbish needing to burn 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, primary air piping is embedded in the sidewall of the body of heater above fire grate segment, and a part for primary air piping is exposed in body of heater; Be exposed on the primary air piping in body of heater and comprise wind pushing hole.
Further, primary air piping is in the top of fire grate outermost edge, and the most edge of fire grate limited by the extending range of fire grate segment.
Further, primary air piping is annular.
Further, primary air piping 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 side.
Further, body of heater adopts refractory material to make.
Incinerator of the present utility model has following beneficial effect:
1, primary air piping is built in burner hearth inside, and tube wall temperature is high, preheating can enter stove air.
2, the design of First air air outlet can guide flue gas to gather to burner hearth center, in conjunction with the set-up mode of flue gas fairlead, is conducive to the discharge of gasification flue gas, reduces the gasification time of staying of flue gas in burner hearth, improves gasification gas calorific value.
3, the rotary fire grate slowly rotated can realize 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 the drying of material, pyrolysis and gasification.
The utility model additionally provides a kind of multi-cavity flue gas and burns chamber, as the burning chamber of the high temperature incineration section (or claiming dual firing chamber) of above-mentioned garbage combustion device, comprising:
The sub-chamber of 6 cube structures, the 1st sub-chamber respectively, 2nd sub-chamber, 3rd sub-chamber, 4th sub-chamber, 5th sub-chamber, 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 sub-chamber and the 3rd sub-chamber is near the downside of the 2nd sub-chamber, near the left side of the 5th sub-chamber on the right side of 2nd 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 sub-chamber and the 6th 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 common multi-cavity flue gas forming 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, in the sidewall that secondary air channel is embedded in each sub-chamber or limited by sidewall and formed (being equivalent at sidewall open interior), secondary air channel can connect outside air blast, thus 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 1st sub-chamber and the 2nd sub-chamber, the 2nd sub-chamber and the 3rd sub-chamber, the 4th sub-chamber and the 5th sub-chamber, connected entrance between the 5th sub-chamber and the 6th sub-chamber;
Burner, have 4 burners, be arranged in the connected entrance between the sub-chamber being provided with Secondary Air air inlet respectively, secondary air chamber is defined between Secondary Air air inlet and burner, burner comprises spray air holes, spray air holes is communicated with secondary air chamber and burns chamber, and namely Secondary Air air inlet, secondary air chamber, spray air holes form an air and enter the path that multi-cavity flue gas burns chamber.
Further, the upside sidewall of the 2nd sub-chamber and the 5th sub-chamber is the 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 sub-chamber and the 6th sub-chamber is with highly identical, and the length of the 2nd sub-chamber and the 5th sub-chamber is with 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 air holes to be 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, spray air holes perforate direction its columnar structured Inner side tangential on.
Further, spray air holes have 3 rows 10 row be 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, and sufficient combustion, temperature is high, is conducive to the after-flame of organic pollution and carbon residue.
3, repeatedly supplement air in conjunction with tangential air inlet mode, can excess air factor be reduced, reduce smoke evacuation volume and flue gas flow rate, thus the fume amount that reduction flue gas carries.
4, flow of flue gas carries out repeatedly break-in by design, plays certain dustproof function, reduces the smoke content in smoke evacuation, extends the time of staying of flue gas at high-temperature area simultaneously.
The utility model additionally provides a kind of flue gas fairlead, and for being communicated with pyrolytic gasification section in above-mentioned garbage combustion device and high temperature incineration section, comprise induced duct, blower cover, 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, the sidewall of blower cover that contacts perpendicular to it of reinforcement.
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 the installation site of this mouth of pipe makes it not be just to the turning cylinder of fire grate to the mouth of pipe, but slightly departs from.
Flue gas fairlead of the present utility model has following beneficial effect:
1, gasify flue gas by being built in burner hearth, the smoke pipe be submerged in material is drawn, and can reduce moisture, improve flue gas calorific value, reduce the content of tar in flue gas, reduce kind of dust.
2, owing to containing flare in flue gas, without the need to igniter in dual firing chamber, just can continued stable combustion.
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 additionally 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 is inclined and mounted on support; Drying comprises drying entrance and drying outlet, and drying entrance is higher than drying outlet on horizontal level, and front canned paragraph and rear canned paragraph are fixedly connected with drying entrance and drying outlet respectively; Feed pipe is arranged in front canned paragraph, and the two ends of feed pipe connect drying entrance and feed hopper respectively; Canned paragraph after tremie pipe connects; Flue gas chuck is sleeved on drying outside.
Further, driving gear, driving wheel, driven pulley, driven gear is also comprised; Driving gear and driving wheel match, and are arranged on one end of support, drying respectively; Driven support roller and driven pulley match, and are arranged on the other end of support, drying respectively; Driving gear connects driving arrangement.
Further, driving wheel and driven pulley are arranged on the upper and lower of drying respectively.
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 successively formed by rear mounting flange, flexible sealing fin, front mounting flange.
Further, the internal diameter of front mounting flange is equal with flexible sealing fin internal diameter, and the external diameter of rear mounting flange is equal with the external diameter of flexible sealing fin.
Further, front mounting flange and rear mounting flange are made up of 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 unit of the present utility model has following beneficial effect:
1, structure is simple, can be placed in refuse gasification incinerator body, reduces the insulation material that drying unit itself is required.
2, utilize high-temperature flue gas (more than 700 DEG C), 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 produced introduces vaporizer, provides gasifying agent (steam), does not have condensation sewage to produce.
The utility model additionally provides a kind of supply air system for incinerator, as the First air supply air system of the pyrolytic gasification section of above-mentioned garbage combustion device, comprises blower fan, airduct; Described blower fan is arranged 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 radial direction 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 bottom a line is along the radial direction perforate down of airduct.
Further, the perforate direction of the described fresh air inlet of the top a line and bottom 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 adjustable, effectively avoid the generation of " cutoff " phenomenon, thus 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 additionally provides a kind of swinging fire grate, as the fire grate of the pyrolytic gasification section of above-mentioned garbage combustion device, comprises fire grate segment, turning cylinder, sprocket wheel, bearing; The distribution of fire grate segment uniform intervals is fixedly mounted on turning cylinder top, and bearing is arranged on the bottom of turning cylinder; Sprocket wheel is fixedly mounted on the bottom of turning cylinder, is positioned at above described bearing, and connects driving arrangement.
Further, fire grate segment is downward-sloping along the direction away from turning cylinder.
Further, dust retaining cone, dust cap, stop collar, key is also comprised; 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 be arranged on turning cylinder bottom and between sprocket wheel and bearing.
Further, the integrated leather boots shape pentagonal configuration that fire grate segment is made up 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 multiple hole, and multiple hole is arranged in order along described fire grate segment bearing of trend.
Further, the diameter in multiple hole increases successively along the direction of fire grate segment away from turning cylinder.
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, remove the gred continuously, reduce the possibility that bulk slag is coalescent on fire grate, protection fire grate.
2, mechanization slagging-off, reduces workman's working strength, avoids, manually except slag operation is to the destruction of burning level, reduces flue dust effusion, improving 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 sectional view;
Fig. 5 be along B-B in Fig. 3 to sectional view;
Fig. 6 and Fig. 7 is the axis side view that multi-cavity flue gas of the present utility model burns chamber, is also the burning chamber of high temperature incineration section in Fig. 3;
Fig. 8 is the enlarged drawing of the burning chamber sectional view of high temperature incineration section in Fig. 4, is also the sectional 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 burning burner in chamber shown in Fig. 6-8;
Figure 12 be along D-D in Figure 11 to sectional 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 sectional view;
Figure 15 is the top view of built-in drying garbage unit of the present utility model;
Figure 16 be along E-E in Figure 15 to sectional 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 primary air piping in Figure 18;
Figure 20 is the top view of primary air piping 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.
Detailed description of the invention
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
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 is placed in the primary air fan 7 of gasification burning equipment 5 outside, overfire air fan 8, air-introduced machine 9 and chimney 10.Primary air fan 7 connects pyrolytic gasification section 12, and to provide air in it, overfire air fan 8 connects high temperature incineration section 13, and to provide air in it, air-introduced machine 9 and chimney 10 are arranged on the top of gasification burning equipment 5, for the tail gas wherein produced.
Rubbish heap storage 1 outlet connects magnetic separation conveying device 2, and this device is belt-type, and magnet sorting iron compound is housed above it, 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 top is 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, thus steam, low boiling combustible gas feeding pyrolytic gasification section 12 that rubbish produces by realization in dryer section 11 inner drying process.Overfire air fan 8 is located in the middle part of gasification burning equipment 5, 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 be 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 in high temperature incineration section 13, using high-temperature flue gas as thermal source, the rubbish in drying 55 is dried, the low boiling volatiles in rubbish is separated out.Achieve external oven dry, cigarette material is separated.Drying 55 can drive with the central axis of its cylinder type for axle rotates by driving arrangement, and drying 55 inwall is provided with flight 19 simultaneously, and dryer section 11 comprises heating source and is.Drying 55 can positive and negative both direction rotate, coordinate the driving (being similar to the agitator of concrete mixer) that flight 19 realizes wherein rubbish, rubbish is driven to drop to the second segment-pyrolytic gasification section 12 (or claiming the second cavity, a combustion room, incinerator) of gasification burning equipment 5 lower left quarter during as rotated forward, when rotating backward, make rubbish extended residence time in drying 55, strengthening drying effect.
There is pyrolytic gasification in rubbish, carry out fuel gas and formed and solid-state, liquid combustible burnout in pyrolytic gasification section 12.The fire grate 20 that the inner bottom of pyrolytic gasification section 12 is provided with, fire grate 20 comprises fire grate segment 35, rotating turning cylinder 36, the distribution of fire grate segment 35 uniform intervals is fixedly mounted on turning cylinder 36 top, both form the structure of similar umbrella, be provided with dividing plate 46 below fire grate segment 35, 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 below fire grate segment 35, when fire grate segment 35 rotates with the turning cylinder 36 by Electric Machine Control, drives lime-ash to fall further, is deposited in except in grit chamber 21.Pyrolytic gasification section 12 also comprises clean-out door 45, can clear up except the lime-ash in grit chamber 21 after opening.Dividing plate 42 is obliquely installed, and incline direction is towards clean-out door 45, so that cleaning.The primary air piping 22 of annular is embedded with in the sidewall refractory material of the top pyrolytic gasification section 12 of fire grate segment 35 outmost turns, its one end connects the primary air fan 7 outside gasification burning equipment 5, and primary air piping 22 comprises multiple fresh air inlet 43 be exposed in pyrolytic gasification section 12, by primary air fan 7 and primary air piping 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 departs from turning cylinder 36 is slightly provided with flue gas fairlead 23, its one end mouth of pipe vertically downward, another termination the 3rd section-high temperature incineration section 13 (or claiming dual firing chamber).
Rubbish burns the flue gas produced and enters high temperature incineration section 13 by flue gas fairlead 23 in pyrolytic gasification section 12, carries out high temperature oxygen-excess combustion wherein.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, common formation is as the burning chamber of the cube structure of high temperature incineration section 13 main body, and 6 sub-chamber's perforate connections successively; High temperature incineration section 13 also comprises the secondary air channel 18 be embedded in each sub-chamber 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 figs 6-8.Secondary air channel 18 connects the overfire air fan 8 outside gasification burning equipment 5, thus can provide air in the burning chamber of high temperature incineration section 13 by overfire air fan 8.The burner 3001 of Secondary Air air inlet 44 and hollow cylindrical is provided with in connected entrance between sub-chamber 2901 and 2902, define secondary air chamber 33 therebetween, burner 3001 comprises spray air holes 34, extraneous air is by entering cylindrical burner 3001 center, for supplementing air to burn through the flue gas of burner through secondary air channel 18, Secondary Air air inlet 44, secondary air chamber 33, spray air holes 34 successively.Sub-chamber 2902 and 2903,2904 and 2905, be also provided with above-mentioned mutually isostructural Secondary Air air inlet and burner between 2905 with 2906, as shown in figs 6-8,4 comprise vertically columnar structured its vertical cylindrical structure of burner 3001,3002,3003,3004 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 it is communicated with sub-chamber 2901, for collecting the dust burning flue gas entrained with in chamber.
Gasification burning equipment 5 also comprises 1 grade of expansion chamber 24, and it is communicated with sub-chamber 2906.Flue gas has removed most organic pollution and carbon residue after each burning sub-chamber burns, and then leaves high temperature incineration section 13 from exhanst gas outlet 32, enters 1 grade of expansion chamber 24.Namely enter flue gas chuck 17 by flue gas inlet tube after entering 1 grade of little sedimentation dedusting of expansion chamber 24, it is peripheral that flue gas chuck 17 dress covers in drying 55, dried the rubbish in drying 55 by the high-temperature flue gas flowed through wherein.The smoke outlet tube 28 of flue gas chuck 17 connects waste heat boiler 26, flue gas enters waste heat boiler 26 heating water (heat exchange), achieve cooling and thermal energy storage, then 2 grades of expansion chambers are entered, it comprises 3 sub-expansion chambers 2501,2502,2503 and is communicated with successively, flue gas carries out sedimentation through each sub-expansion chamber, after removing most flue dust, again enter waste heat boiler 26 and carry out heat exchange, become low-temperature flue gas, finally to be extracted out by air-introduced machine 9 from the exhanst gas outlet of gasification burning equipment 5 and drain into air 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 sorting is sent into breaker 3 continuously or in batches carry out fragmentation through magnetic separation conveying device 2, be crushed to and be less than 300mm size.
Rubbish after step 3, fragmentation sends 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 produced in drying course sends 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; By the rotation of drying 55 different directions, can reach and allow rubbish accelerate to fall into pyrolytic gasification section 12 or maintain dryer section 11 to extend drying time simultaneously.
Step 5, fall into the rubbish carried of pyrolytic gasification section 12 on the grate 20, in pyrolytic gasification section 12, provide air to burn by primary air fan 7, make rubbish generation pyrolytic gasification, carry out fuel gas and formed and the burnout of solid-state, liquid combustible.What carry out in pyrolytic gasification section 12 is pyrolytic gasification and the burning of anaerobic condition, and operating temperature controls below 800 DEG C.
The flue gas produced after waste incineration in step 6, pyrolytic gasification section 12 enters high temperature incineration section 13 through flue gas fairlead 23.
Step 7, enter sub-chamber 2901,90 ° with the high-temperature flue gas of flare or Mars by flue gas fairlead 23 level and turn to, after upwards supplementing air by burner 3001, enter sub-chamber 2902, vigorous combustion; In sub-chamber 2902, flue gas 180 ° turns to, and passes downwardly through after burner 3002 supplements air again and enters sub-chamber 2903; Enter sub-chamber 2904 in the horizontal direction afterwards, 90 ° turn to again, upwards by burner 3003, third time enters sub-chamber 2905 after supplementing air, 180 ° turn to again, pass downwardly through burner 3004, enter sub-chamber 2906 after the 4th supplementary air, in cavity 2906, the combustible component in flue gas runs out of substantially.What flue gas carried out in the process is oxygen-excess combustion, and the operating temperature of each sub-chamber controls at 900-1100 DEG C.In whole process, combustion flame is elongated, the high temperature rotational flow air that every grade of burner all can provide, and supplement the oxygen in flue gas, the combustible that gasification is produced is Thorough combustion under the oxygen enrichment, hot conditions of dual firing chamber; Air-flow is that vortex advances, and extend the time of staying of flue gas in high temperature section, flue gas is in time of staying of dual firing chamber more than 2.0s, and incineration temperature reaches more than 900 DEG C, can make the combustion decomposition completely such as polychlorinated biphenyl material, carbon residue, make dioxin residual quantity few.
Step 8, flue gas, after the burning in each 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, are heated drying 55 by the temperature of flue gas, to realize the oven dry to rubbish in it.
Step 10, flue gas enter waste heat boiler 26 then, as the water in heat source waste heat boiler 26, to reach the object of cooling and storage power.
Step 11, flue gas leave waste heat boiler 26 backward under be introduced into sedimentation sub-chamber 2501,90 ° turn to and enter sub-chamber 2502 again, 180 ° turn to and enter sub-chamber 2503 again, after completing the dedusting in 3 sedimentation sub-chamber successively, upwards 90 ° turn to and again enter waste heat boiler 26, cooling and energy storage.
After step 12, flue gas leave waste heat boiler 26 again, to be extracted out by air-introduced machine 9 from the exhanst gas outlet of gasification burning equipment 5 and drain into air 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, be only existing national standards GB18485-2001 1/33 and European Union II standard regulation about 1/3.
Flying dust content of dioxin 0.049 μ gTEQ/kg, much smaller than the limit value of the 3 μ gTEQ/kg that " consumer waste filling and embedding Environmental capacity standard (GB16889-2008) " specifies.
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, primary air piping 22, flue gas fairlead 23, dividing plate 46, except grit chamber 21 and clean-out door 45.Fire grate 20 is arranged on the bottom in the burner hearth of incinerator.Fire grate 20 comprises fire grate segment 35, rotating turning cylinder 36, and the distribution of fire grate segment 35 uniform intervals is fixedly mounted on turning cylinder 36 top, and both form the structure of similar umbrella, are provided with dividing plate 46 below fire grate segment 35, define therebetween except grit chamber 21.Primary air piping 22 is embedded in the furnace wall refractory above fire grate 20 outermost edge, and in annular, it is communicated with inside and outside incinerator, and outside is connected with the air blast be arranged on outside incinerator, to blow in stove.Primary air piping 22 has section tubular wall to be exposed in incinerator, and it comprises multiple fresh air inlet 43, air is sent in incinerator from fresh air inlet 43.Above fire grate 20, suspension has flue gas fairlead 23, for sending out the flue gas produced after waste incineration in incinerator.
Incinerator top is provided with opening, rubbish enters in stove from incinerator top, under the radiation heat transfer of burner hearth high-temperature refractory, the heat convection of high-temperature flue gas and high temperature rubbish bed of material heat conduction heat exchange three kinds of mode effects, complete drying, 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 sends into primary air piping 22 through air blast, in primary air piping 22, after the heating of high temperature tube wall, fresh air inlet 43 from primary air piping 22 madial wall, enter the rubbish bed of material on fire grate along perforate direction inner, the perforate direction of fresh air inlet 43 can be selected perpendicular to the horizontal direction of tube wall, become upwards 45 ° of directions or become downward 45 ° of upward directions with horizontal plane with horizontal plane.Main purpose is for burning zone provides combustion air, and expansion burning zone thickness, maintains the temperature levels in stove.Also can in the ash bed after-flame of carbon residue provide oxygen with the horizontal plane air entered at 45 ° in downward direction simultaneously.
The flue gas fairlead 23 of suspension above fire grate 20, vertically downward, turning cylinder 36 is departed from position to its one end mouth of pipe slightly.Match with the air inlet mode of above-mentioned air, gasification flue gas is gathered to center, gasification flue gas can be discharged in time.And flue gas fairlead 23 itself also can as heat-transfer area, assisted spam drying 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 is fallen into except grit chamber 21 by the gap of fire grate segment 35, achieves continuous slagging-off.
Except lime-ash in grit chamber 21 need open the rear artificial removing of clean-out door 45.Dividing plate 46 tilts to clean-out door 45 direction, 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 figs 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.Comprise the sub-chamber 2901,2902,2903,2904,2905,2906 of the cube structure that 6 are made up of refractory material, 4 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, and the length of sub-chamber 2901,2903,2904,2906 is with highly identical, and the length of sub-chamber 2902,2905 and highly identical and their length are the twices of all the other 4 sub-chamber 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, near the left side of sub-chamber 2905 on the right side of sub-chamber 2902, 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 forming 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 formed), and it is communicated with multi-cavity flue gas and burns inside and outside chamber.Can be connected with the air blast of outside, burning in chamber to multi-cavity flue gas provides air.Secondary air channel 18 comprises Secondary Air air inlet 44, to burn the air outlet in chamber as it at multi-cavity flue gas.Burner 3001,3002,3003,3004 is separately positioned in the connected entrance between sub-chamber 2901 and 2902, sub-chamber 2902 and 2903, sub-chamber 2904 and 2905, sub-chamber 2905 and 2906.Secondary air inlet 44 is also arranged in the connected entrance between the sub-chamber residing for 4 burners, defines the secondary air chamber 33 of annular between the burner that secondary air inlet 44 is corresponding with it.And the vertically columnar structured sidewall of burner has spray air holes 34, spray air holes 34 is communicated with secondary air chamber 33 and sub-chamber, namely Secondary Air air inlet 44, secondary air chamber 33, spray air holes 34 form an air and enter the path that multi-cavity flue gas burns chamber, thus can provide air-breathing in multi-cavity flue gas burning chamber.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 is illustrated by figs. 11 and 12, the columnar structured sidewall of burner has 10 row 3 and arrange totally 30 spray air holes 34, and perforate direction burner cylindrical shape Inner sidewall tangential on, thus the air after preheating in annular secondary air chamber tangentially sprays into cylindrical burner center via spray air holes 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, thus the fume amount that reduction flue gas carries.
High-temperature flue gas with flare or Mars enters sub-chamber 2901,90 ° by gas approach 31 and turns to, and enters sub-chamber 2902, vigorous combustion after upwards supplementing air by burner 3001; In sub-chamber 2902, flue gas 180 ° turns to, and passes downwardly through after burner 3002 supplements air again and enters sub-chamber 2903; Enter sub-chamber 2904 in the horizontal direction afterwards, 90 ° turn to again, upwards by burner 3003, third time enters sub-chamber 2905 after supplementing air, 180 ° turn to again, pass downwardly through burner 3004, enter sub-chamber 2906 after the 4th supplementary air, in cavity 2906, the combustible component in flue gas runs out of substantially.Finally flow out multi-cavity flue gas by exhanst gas outlet 32 and burn chamber.
In supplementary air event, be embedded in the secondary air channel 18 in sub-chamber's sidewall, the heat pre-heated flow utilizing sidewall refractory material to put aside 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.The sidewall of blower cover 48 is evenly distributed with many elongate holes 49, between each elongate holes 49, reinforcement 50 is 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 above fire grate 20, slightly offsets from the RC position of fire grate.The least significant end of blower cover 47 is arranged in annular primary air piping 22 and surrounds.By flange 51, induced duct 47 is fixed on incinerator inwall.In running, flue gas fairlead 23 is submerged in material, draws flue gas from incinerator bottom.By the negative pressure produced as the air-introduced machine of exhaust apparatus, gasification flue gas and flare can flow through horn mouth and the elongate holes 49 of blower cover 48, via the fairlead 47 of 90 degree of corners, send into follow-up burning chamber.Reinforcement 50 between neighboring strips shape hole 49, can alleviate rubbish blocking elongate holes 49 and cause the situation that flue gas fairlead area significantly reduces.
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 unit of the present utility model, 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 the two ends of drying 55 respectively.Feed hopper 14 is fixedly mounted on front canned paragraph 53, enters the entrance of drying unit as rubbish.Feed pipe 63 device is in front canned paragraph 53, and its two ends connect feed hopper 14 and drying 55 respectively.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 are formed is obliquely installed, and be arranged on support 60, support 60 is arranged at two ends and the middle part of drying 55 respectively, the direct support drying 55 in two ends, middle part direct support flue gas chuck 17.The support 60 at the two ends of drying 55 is separately installed with driving gear 57 and driven support roller 59.Correspondingly, drying 55 is installed with the driving wheel 56 and driven pulley 58 that match with driving gear 57 and driven support roller 59 respectively, driving wheel 56 is arranged on the upper end of the drying 55 tilting to install, and driven pulley 58 is arranged on the lower end of drying 55.Driving gear 57 is driven by variable-frequency motor, reduction box and drives driving wheel 56 to rotate, and realizes positive and negative two of drying 55 to rotation, and drying 55 lower end relies on driven support roller 59 and driven pulley 58 to coordinate and rotates.Arranged (being similar to the mixing drum of concrete mixer) by the shaped angles of flight 19, rubbish when rotating forward to make drying 55 after preheating and drying, drops to pyrolytic gasification section by deadweight; Extend the time of staying of rubbish in drying 55 when rotating backward, make drying more abundant.Feed pipe 63 also comprises dry gas fairlead 64, for discharging the aqueous vapor and volatile ingredient that produce in drying garbage process.Correspondingly, canned paragraph 53 also comprises dry gas outlet 72, for connecting dry gas fairlead.
The feed hopper 14 that front canned paragraph 53 is installed delivered to by rubbish by conveyer, slipped feed pipe 63, enters drying 55.High-temperature flue gas enters flue gas chuck 17 from flue gas inlet tube 27, is discharged by smoke outlet tube 28 with after drying 55 heat exchange.Flight 19 in drying 55, in its rotation process, can turn over and copy rubbish, avoids sanitary fill bottom drying 55, makes rubbish thermally equivalent in drying 55.After drying garbage, enter the tremie pipe 61 that rear canned paragraph 54 is arranged, send into pyrolytic gasification section.The dry dry gas produced, containing steam, low boiling combustible gas etc., after discharging drying by the dry gas fairlead 64 that feed pipe 63 has, sends into pyrolytic gasification section by the dry gas fairlead and primary air fan being connected to dry gas outlet 72.
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 also adopt high temperature flexible sealing structure 62 to seal between drying 55, flue gas when avoiding drying 55 to rotate, dryly produce escaping of gas.As shown in figure 17, high temperature flexible sealing structure 62 is fitted successively by rear mounting flange 67, flexible sealing fin 66, front mounting flange 65 and is formed.The internal diameter of front mounting flange 65 is equal with flexible sealing fin 66 internal diameter, the external diameter of rear mounting flange 67 is equal with the external diameter of flexible sealing fin 66, rear mounting flange 67 and front mounting flange 65 are made up of 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 the First air supply air system of the pyrolytic gasification section as above-mentioned garbage combustion device simultaneously.Comprise air blast 73, the primary air piping 22 be connected with air blast 73.It is outside that air blast 73 is arranged on pyrolytic gasification section 12.Primary air piping 22 is arranged on to be had in the pyrolytic gasification section 12 of cylindrical furnace, and part is embedded in the sidewall of pyrolytic gasification section 12.Primary air piping 22 in 270 ° of circular arcs, and is arranged on the top of fire grate 20 outermost edge.Primary air piping 22 is exposed on the tube wall in pyrolytic gasification section 12 and has fresh air inlet 43, and it is inner that air sends into pyrolytic gasification section 12 by fresh air inlet 43.The wind pushing hole of primary air piping 22 has three row, from top to bottom, and the perforate upward of the first row radial direction annularly, direction and horizontal plane at 45 °, the annularly radial level perforate of the second row, the 3rd row's radial direction perforate down annularly, direction and horizontal plane at 45 °, as illustrated in figures 19 and 20.This perforate mode can guide the flue gas above fire grate 20 to gather to center, is convenient to flue gas fairlead 23 drawing smoke.Air in primary air piping 22, before pyrolytic gasification section 12, by pyrolytic gasification section 12 sidewall refractory material preheater, thus 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.Multiple fire grate segment 35 is spaced apart is welded on turning cylinder 36 top uniformly, and form umbrella-shaped structure, bearing 41 is arranged on bottom turning cylinder 36, thus forms overall rotatable round platform fire grate.Dust retaining cone 37 is equipped with at turning cylinder 36 top, dust cap 38 is equipped with at middle part, prevents lime-ash from dropping in the gap of rotational structure, thus causes turning cylinder 36 to wear and tear.Sprocket wheel 40 is arranged on the bottom of turning cylinder 36 and is positioned at above bearing 41, and fire grate drives decelerator by variable-frequency motor, and drives turning cylinder 36 to realize rotating by sprocket wheel 40.Stop collar 39 to be arranged in the middle part of turning cylinder 36 and to be positioned at below dust cap 38, and key 42 is arranged on turning cylinder 36 bottom 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 is made up of jointly the boots mouth end 68 of rectangular configuration and the boots bottom 69 of ladder structure of right angle, 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 multiple hole 70, be arranged in order along fire grate segment bearing of trend, and along boots mouth end 68 to direction, boots bottom 69, aperture increases successively.
In fire grate slow circumvolve process, the rubbish dropped on fire grate imposed on equably fire grate segment 35 on the grate surface that formed, lime-ash simultaneously after waste incineration is broken, fall into from the hole 70 fire grate segment 35 or the gap between fire grate segment 35 below fire grate segment 35 except grit chamber.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that the ordinary skill of this area just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to 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 by the determined protection domain of claims.

Claims (10)

1. a built-in drying garbage unit, is characterized in that, comprises support, front canned paragraph, feed hopper, feed pipe, drying, flue gas chuck, rear canned paragraph, tremie pipe; Described drying is inclined and mounted on described support; Described drying comprises drying entrance and drying outlet, and described drying entrance exports higher than described drying on horizontal level, and described front canned paragraph and described rear canned paragraph are fixedly connected with described drying entrance and the outlet of described drying respectively; Described feed pipe is arranged in described front canned paragraph, and the two ends of described feed pipe connect described drying entrance and described feed hopper respectively; Described tremie pipe connects described rear canned paragraph; It is outside that described flue gas chuck is sleeved on described drying.
2. built-in drying garbage unit as claimed in claim 1, is characterized in that, also comprise driving gear, driving wheel, driven pulley, driven gear; Described driving gear and described driving wheel match, and are arranged on one end of described support, described drying respectively; Described driven support roller and described driven pulley match, and are arranged on the other end of described support, described drying respectively; Described driving gear connects driving arrangement.
3. built-in drying garbage unit as claimed in claim 2, is characterized in that, described driving wheel and described driven pulley are arranged on the upper and lower of described drying respectively.
4. built-in drying garbage unit as claimed in claim 2, it is characterized in that, described drying comprises flight, and described flight is arranged on described drying inwall.
5. built-in drying garbage unit as claimed in claim 1, it is characterized in that, described feed pipe comprises dry gas fairlead, and described front canned paragraph comprises dry gas outlet.
6. built-in drying garbage unit as claimed in claim 1, is characterized in that, described flue gas chuck comprises flue gas inlet tube and smoke outlet tube.
7. the built-in drying garbage unit as described in as arbitrary in claim 1-6, it is characterized in that, the junction of described front canned paragraph, described flue gas chuck, described rear canned paragraph and drying all adopts high temperature flexible sealing structure to seal, and described high temperature flexible sealing structure is fitted successively formed by rear mounting flange, flexible sealing fin, front mounting flange.
8. built-in drying garbage unit as claimed in claim 7, is characterized in that, the internal diameter of described front mounting flange is equal with described flexible sealing fin internal diameter, and the external diameter of described rear mounting flange is equal with the external diameter of described flexible sealing fin.
9. built-in drying garbage unit as claimed in claim 8, is characterized in that, described front mounting flange and described rear mounting flange are made up of metal material; Described flexible sealing fin adopts high temperature resistant elastomeric material to make.
10. built-in drying garbage unit as claimed in claim 2, is characterized in that, described driving arrangement is the combination of motor, variable-frequency motor, motor or variable-frequency motor and reduction box.
CN201420230143.7U 2014-01-21 2014-05-06 A kind of built-in drying garbage unit Active CN204100255U (en)

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CN201420229892.8U Active CN203893188U (en) 2014-01-21 2014-05-06 Air supply system
CN201420228622.5U Active CN203893190U (en) 2014-01-21 2014-05-06 Rotary grate
CN201410189619.1A Active CN104791803B (en) 2014-01-21 2014-05-06 A kind of garbage combustion device and its burning process
CN201420229697.5U Active CN204084387U (en) 2014-01-21 2014-05-06 A kind of incinerator
CN201410189455.2A Active CN104019452B (en) 2014-01-21 2014-05-06 A kind of garbage combustion device and burning process thereof
CN201420228623.XU Withdrawn - After Issue CN204084386U (en) 2014-01-21 2014-05-06 A kind of garbage combustion device
CN201420230170.4U Active CN203893194U (en) 2014-01-21 2014-05-06 Flue gas outlet pipe
CN201420230069.9U Active CN203893191U (en) 2014-01-21 2014-05-06 Multi-cavity smoke incineration chamber
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CN201420228622.5U Active CN203893190U (en) 2014-01-21 2014-05-06 Rotary grate
CN201410189619.1A Active CN104791803B (en) 2014-01-21 2014-05-06 A kind of garbage combustion device and its burning process
CN201420229697.5U Active CN204084387U (en) 2014-01-21 2014-05-06 A kind of incinerator
CN201410189455.2A Active CN104019452B (en) 2014-01-21 2014-05-06 A kind of garbage combustion device and burning process thereof
CN201420228623.XU Withdrawn - After Issue CN204084386U (en) 2014-01-21 2014-05-06 A kind of garbage combustion device
CN201420230170.4U Active CN203893194U (en) 2014-01-21 2014-05-06 Flue gas outlet pipe
CN201420230069.9U Active CN203893191U (en) 2014-01-21 2014-05-06 Multi-cavity smoke incineration chamber

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CN203893191U (en) 2014-10-22
CN203893188U (en) 2014-10-22
CN203893194U (en) 2014-10-22
CN104019452A (en) 2014-09-03
CN104019452B (en) 2016-05-04
CN104791803A (en) 2015-07-22
CN104791803B (en) 2018-11-23
CN204084386U (en) 2015-01-07
CN203893190U (en) 2014-10-22

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