CN202253664U - High-temperature garbage incinerator - Google Patents

High-temperature garbage incinerator Download PDF

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Publication number
CN202253664U
CN202253664U CN2011203447362U CN201120344736U CN202253664U CN 202253664 U CN202253664 U CN 202253664U CN 2011203447362 U CN2011203447362 U CN 2011203447362U CN 201120344736 U CN201120344736 U CN 201120344736U CN 202253664 U CN202253664 U CN 202253664U
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air
garbage
temperature
drying
heat exchange
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CN2011203447362U
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邢献军
马培勇
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邢献军
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Abstract

The utility model provides a high-temperature garbage incinerator, belonging to the field of a garbage disposal technology. The high-temperature garbage incinerator mainly comprises a feeding opening, percolation equipment, a dryer, a chain, a garbage conveyor, a hopper, a chain fire grate, a cold air inlet, an air pipeline for drying, a boiler barrel, a flue, a water input pipe, a condenser, an air pre-heater, a coal saving device and a steam filter. High-temperature air for drying the garbage is obtained by carrying out heat exchange on fresh air with smoke through the air pre-heater and then carrying out heat exchange on the air with ash in an ash pit through the air pipeline for drying; after the garbage is dried, gas containing steam is condensed by cold water through the condenser and then the cold water enters into the coal saving device to be further heated after the heat exchange; the dry gas obtained by condensing the steam is introduced to a combustion-supporting air inlet by a draught fan to carry out the heat exchange with the ash in the ash pit, and then the gas is graded and is supplied to a combustion room to support the combustion. The high-temperature garbage incinerator provided by the utility model has the advantages of capability of carrying out high-temperature combustion on the garbage, low pollution emission, high heat efficiency and capability of realizing clean and efficient utilization of the garbage.

Description

A kind of high temperature garbage burning device
Technical field:
The utility model belongs to the technology of garbage disposal field, particularly a kind of high temperature garbage burning device.
Background technology:
At present, energy shortage and environmental pollution are the principal elements of restriction domestic economy development, and China has the abundant in coal resource, and being one is the developing country of main energy sources with the coal, and coal resources consumption accounts for about 75% of total energy consumption.The application of coal mainly contains direct burning, gasification and liquefaction technology.Facts have proved that in coal being changed into the various technology of the energy and product form more easily, coal gasification is should top-priority a kind of processing method.It is the main direction of coal gasification development and application with combustion gas and comprehensive utilization that production city coal gas, chemical industry synthesize with unstripped gas, combined cycle generation.At present advanced in the world pressurized entrained-bed coal gasifying process technology mainly is the powdered coal pressuring gasified technology of the Texaco of Texaco Oil water coal slurry pressure gasification process, Shell company and the powdered coal pressuring gasified technology of GSP of German future source of energy company.
Background technology:
Along with China gets into urbanization accelerated development period, social economy constantly develops, and people's living standard also progressively improves, the house refuse quantity that thereupon produces with day increase sharply.A large amount of domestic waste serious threat town dwellers' health, the problem of environmental pollution that the processing house refuse is brought is very urgent.The mode of garbage disposal at present mainly contains three kinds of modes such as landfill, compost, burning.Landfill need take a large amount of soils, and meeting contaminated soil of the harmful components in the rubbish and water resource, and harm humans is healthy.Compost need sort, classify rubbish, and its processing can not minimizing, and takies a large amount of soils.And burn is that organic waste is oxidized to inertia gaseous material and inorganic noncombustibles matter under the condition of high temperature oxygen supply.The heat energy that discharges in the burning process can be used for generating, and a small amount of residual residue discharge, landfill or make other purposes are discharged after the gas cleaning.Its advantage is that to subtract the appearance ability big and high temperature is innoxious, and floor space is less relatively, and is less to surrounding environment influence, and energy recovery is arranged.So comparatively speaking, the advantage of burning is tangible.But present burning mode ignition temperature is low, and it is influential such as a series of problems such as emission such as bioxin to health to understand generation in the combustion process, has seriously restricted the application of garbage incineration technology.Relevant research shows that the generation temperature of , bioxin is 200 ℃~650 ℃, decomposes greater than 800 ℃ of Shi bioxin in ignition temperature.Adopt high temperature incineration can promote the decomposition of bioxin, reduce the discharging of the pollutant of waste incineration.
The high temperature incinerator of operation has this stove pulse to throw dynamic formula incinerator, Martin's type of furnace stoker fired grate stove, LXRF series vertical rotating pyrogenation incinerator at present.Because the general moisture of rubbish is higher, thereby influence the ignition temperature of rubbish.Therefore for improving the ignition temperature of rubbish, above incinerator all is provided with the drying garbage unit.The dynamic formula incinerator is thrown in pulse; Rubbish is sent into the drying bed of incinerator through the autofeed unit dry; The house refuse refuse is sent into dry, the pyrolysis of incinerator drying oven fire-grating frame through the batcher of automatic or manual control, on dry grate, accept the radiant heat in the main furnace chamber after; Moisture in the evaporation discharging garbage makes solid refuse be more prone to burning.This incinerator is on dry grate, rubbish to be carried out the heat radiation drying; Martin's type of furnace stoker fired grate stove; Rubbish gets into the fire grate (fire grate is divided into dry section, combustion zone, burning-out zone) under being tilted to through feed hopper, because the crisscross motion between the fire grate promotes rubbish downwards; Make rubbish successively through each zone on the fire grate, discharge burner hearth until after-flame.Rubbish turns over the baking of blowing of sending the heat radiation that receives in the process in burner and the stove and a wind at fire grate, and moisture content evaporates rapidly, fire burns.This incineration furnace garbage is fully dry, but consumes more energy simultaneously; LXRF series vertical rotating pyrogenation incinerator, the rubbish that gets into pyrolysis gasification furnace is at first at the flue gas drying of dryer section by the pyrolysis section rising, moisture evaporation wherein; Be decomposed into combustible such as carbon monoxide, gaseous hydrocarbons in the pyrolytic gasification section and form mixed flue gas, mixed flue gas is inhaled into dual firing chamber's burning; Residue behind the pyrolytic gasification (the inorganic dirt that tar liquid, purer carbon element and rubbish itself contain and inert substance etc.) sinks to burning zone and fully burns, and temperature is up to 1100-1300 ℃, and its heat is used to provide pyrolysis section and dryer section institute energy requirement.This kind incinerator comes garbage drying by the burning liberated heat; Fluidized bed incinerator, body of heater is made up of multihole distributor, in burner hearth, adds a large amount of quartz sand, quartz sand is heated to more than 600 ℃, and blasts the hot blast more than 200 ℃ at furnace bottom, and hot sand is seethed with excitement, and drops into rubbish again.Rubbish seethes with excitement with hot sand together, and rubbish is dried very soon, catches fire, burns.This kind incinerator will consume portion of energy to the drying of rubbish.
In sum, various incinerators roughly are divided into two kinds to the drying mode of rubbish: a kind of is the radiant heat of accepting burner hearth, and the part heat is radiated the rubbish surface of new entering, reaches water evaporates after certain temperature.Another kind is a heat convection of accepting dry wind, and this mode need be installed a blower fan dry wind is provided.But because the vaporization of water heat absorption is quite big, if in combustion process this part water evaporates, will make temperature field in furnace receive certain influence even have influence on the stable of burning.Therefore it is very necessary before burning, this part water decomposition to be come out.
The utility model content:
In order to overcome the deficiency of the various incineration technologies of above-mentioned rubbish; A kind of high temperature garbage burning device of the utility model will be sent into high-temperature incinerator through the granulated garbage after the dry fragmentation and burn; Improve the efficiency of combustion and the thermal efficiency of rubbish; Solve the secondary pollution problem in the waste incineration, alleviate of the pollution of fume emission bioxin, realize burning of rubbish efficient stable and cleaning discharging environment.
A kind of high temperature garbage burning device of the utility model mainly comprises charging aperture, diafiltration equipment, diafiltration liquid bath, drier, chain, rubbish conveyer, hopper, traveling-grate stoker, cool air inlet, dry with air duct, tedge, drum, flue, water inlet pipe, saturated vapor outlet, superheated steam outlet, exhanst gas outlet, grey pit, lime-ash door, condenser, air preheater, economizer, superheater; Diafiltration equipment, diafiltration liquid bath, chain, drier and dry with air duct composition drying garbage device; Rubbish conveyer, hopper, traveling-grate stoker are formed feeding device, and traveling-grate stoker is installed in the body of heater below; The combustion chamber that burning cover, traveling-grate stoker, furnace wall surround is formed the burning cover of high temperature resistant through having, the high heat conduction of steam raising plant, high heat storage performance and is isolated with drum, flue, tedge, water inlet pipe, economizer, air preheater, superheater; It is characterized in that: after the high temperature air that the rubbish after the filtration is got into air duct by drying carries out drying, send into hopper by the rubbish conveyer again.
The characteristic of the utility model also is:
The high temperature air of described garbage drying is by behind fresh air process air preheater and the flue gas heat exchange, again through lime-ash heat exchange gained in dry air Guan Dao and the grey pit.
Described steam-laden gas behind the drying garbage is used the cold water condensation through condenser, further heat to economizer after the cold water heat exchange; The gas of the drying behind the water vapor condensation causes combustion air inlet by air-introduced machine, infeeds in the combustion chamber combustion-supporting with classification after the lime-ash heat exchange in the grey pit.
The beneficial effect of the utility model is:
1) the high temperature air dry feed rubbish after utilization and flue gas, the lime-ash heat exchange, the UTILIZATION OF VESIDUAL HEAT IN of flue gas and lime-ash is abundant, has improved the efficiency of combustion of waste incineration.
2) the steam-laden gas behind the garbage drying is adopted cold water heat exchange condensation; Send into the economizer heating behind the cold water absorption heat and send into boiler again, condensed gas is through the suction of air-introduced machine, and combustion air pipeline and the lime-ash heat exchange delivered in the grey pit are sent in the stove combustion-supporting; Not only further utilized the waste heat of gas behind the garbage drying and lime-ash; And keep the negative pressure state of rubbish feed bin, the foul smell of no refuse pollution is discharged, and has avoided rubbish that surrounding air is polluted.
3) temperature in the boiler furnace is higher than general garbage burning boiler, adopts high temperature combustors, and fire box temperature can reach 1100 ℃; Can eliminate the bacterium in the rubbish, be beneficial to bioxin and decompose to greatest extent, and the temperature field be even; Peak temperature is lower than 1500 ℃, has reduced the generation of NOx.
Description of drawings:
Fig. 1 is the structure chart of a kind of high temperature garbage burning device of the utility model.
1 is charging aperture, and 2 are diafiltration equipment, and 3 are the diafiltration liquid bath, and 4 is chain, and 5 is drier, and 6 is that drying is used air duct, and 7 is the combustion air pipeline; 8 is traveling-grate stoker, 9 combustion airs inlet, and 10 is the lime-ash door, and 11 is ash retaining wall, and 12 is cool air inlet, and 13 is air preheater, 14 is deduster; 15 is economizer, and 16 are the economizer inlet, and 17 is steam superheater, and 18 is flue, and 19 is furnace wall, and 20 are the high-temperature flue gas outlet, and 21 are the superheated steam outlet; 22 are the saturated vapor outlet, and 23 is drum, and 24 is water inlet pipe, and 25 is the condenser hot water outlet, 26 condensers, and 27 is the condenser gas feed, 28 is exhanst gas outlet; 29 is tedge, and 30 is grey pit, and 31 is burning cover, and 32 is the combustion chamber, and 33 is the anti-gray net, and 34 is ash dropping hopper; 35 is air-introduced machine, and 36 are the collection case, and 37 is smoke pipe, and 38 is air exhauster, and 39 is dried rubbish, and 40 is the drier gas vent; 41 is shutter, and 42 is cooling water inlet, and 43 is condensation-water drain, and 44 is hopper, and 45 is the rubbish conveyer, and 46 is the condenser gas vent.
Fig. 2 is the left cutaway view of a kind of high temperature garbage burning device of the utility model.
The specific embodiment:
Further specify the specific embodiment of a kind of high temperature garbage burning device of the utility model below in conjunction with accompanying drawing.
The structure of a kind of high temperature garbage burning device of the utility model is as shown in Figure 1, mainly comprises charging aperture 1, diafiltration equipment 2, diafiltration liquid bath 3, drier 5, chain 4, rubbish conveyer 45, hopper 44, traveling-grate stoker 8, cool air inlet 12, dry with air duct 6, tedge 29, drum 23, flue 18, water inlet pipe 24, saturated vapor outlet 22, superheated steam outlet 21, exhanst gas outlet 28, grey pit 30, lime-ash door 10, condenser 26, air preheater 13, economizer 15, steam superheater 17.It is characterized in that: diafiltration equipment 2, diafiltration liquid bath 3, chain 4, drier 5 and dry with air duct 6 composition drying garbage devices; Rubbish conveyer 45, hopper 44, traveling-grate stoker 8 are formed feeding device, and traveling-grate stoker 8 is installed in the body of heater below; The combustion chamber 32 that burning cover 31, traveling-grate stoker 8, furnace wall 19 surround; Form steam raising plant with drum 23, flue 18, tedge 29, water inlet pipe 24, economizer 15, air preheater 13, steam superheater 17, the burning cover 31 of high temperature resistant through having, high heat conduction, high heat storage performance is isolated; The bottom of diafiltration equipment 2 is provided with percolation tank 3.Combustion air pipeline 7 adopts stagewise, is positioned on the bottom of traveling-grate stoker 8; Water inlet pipe 24 links to each other with economizer 15, and economizer 15 links to each other with condenser 26.
Rubbish falls to diafiltration equipment 2 from charging aperture 1, the elimination portion of water, and filtrating is entered diafiltration liquid bath 3 entering downstream and is done subsequent treatment; Rubbish after the filtration gets into drier 5 and carries out drying and heating by drying with the high temperature air that air duct 6 gets into, and sends into hopper 44 by rubbish conveyer 45; High-temperature preheated air be by cold air successively with air preheater 13, grey pit 30 in lime-ash heat exchange gained; Gas behind the drying garbage is led to condenser gas feed 27 via drier gas vent 40; Cold water preheating to getting in condenser 26; Hot water leads to economizer inlet 16 by condenser hot water outlet 25, and the condensed water that the gas behind the drying garbage generates after the heat exchange in condenser 26 is discharged by condensation-water drain 43; Air-introduced machine 35 causes combustion air inlet 9 with the gas after the heat exchange, and is combustion-supporting through getting into combustion chamber 32 through the mouth of pipe that anti-gray net 33 is housed after combustion air pipeline in the grey pit 30 7 and the lime-ash heat exchange again; Dried rubbish 39 in the hopper 44 is delivered to combustion chamber 32 by traveling-grate stoker 8; Dried rubbish is in traveling-grate stoker 8 and air mixed combustion, and small amount of dust gets into grey pit 30 from ash dropping hopper 34, and most of dust is delivered to tail end by traveling-grate stoker 8, falls into grey pit 30; The flue gas that generates is discharged from shutter 41, and the water that carries out upwards getting into behind the heat convection smoke pipe 37 and drum 23 with tedge 29, collection case 36 carries out the round trip heat exchange, is expelled to flue 18 by high-temperature flue gas outlet 20 again; The steam that produces drains into steam superheater 17 by saturated vapor outlet 22 and produces superheated steam, is used for generating; Behind flue gas in the flue 18 steam superheater 17 of flowing through successively, economizer 15 and its heat exchange, flow to air preheater 13 preheated airs downwards; The flue gas of low temperature flows into deduster 14 dedustings after drain into exhanst gas outlet 28 by air exhauster 38.Be provided with burning cover 31 in the combustion chamber 32; The combustion zone does not directly contact with water-cooling wall, slows down rate of heat exchange, the harmonious combustion field; Keep in burning cover 31 inner combustion chambers 32 everywhere temperature all about 1100 ℃; Help bioxin and decompose to greatest extent, and peak temperature is lower than 1500 ℃, the generation of reduction NOx.
The utility model is according to the characteristic of waste incineration; Adopt air preheat, the garbage pre-heating refuse burning system that design is set dry, the combustion chambers burn cover to realize the high-temp combustion of rubbish; Have advantages such as efficiency of combustion height, the thermal efficiency is high, pollution is low; The content of the flue dust when having significantly reduced fume emission simultaneously, NOx and bioxin can be realized solid waste energy clean utilizations such as rubbish.

Claims (3)

1. a high temperature garbage burning device mainly comprises charging aperture (1), diafiltration equipment (2), diafiltration liquid bath (3), drier (5), chain (4), rubbish conveyer (45), hopper (44), traveling-grate stoker (8), cool air inlet (12), dry with air duct (6), tedge (29), drum (23), flue (18), water inlet pipe (24), saturated vapor outlet (22), superheated steam outlet (21), exhanst gas outlet (28), grey pit (30), lime-ash door (10), condenser (26), air preheater (13), economizer (15), steam superheater (17); Diafiltration equipment (2), diafiltration liquid bath (3), drier (5) and dry with air duct (6) composition drying garbage device; Rubbish conveyer (45), hopper (44), traveling-grate stoker (8) are formed feeding device, and traveling-grate stoker (8) is installed in the body of heater below; The combustion chamber (32) that burning cover (31), traveling-grate stoker (8), furnace wall (19) surround; Form the burning cover (31) of high temperature resistant through having, the high heat conduction of steam raising plant, high heat storage performance isolates with drum (23), flue (18), tedge (29), water inlet pipe (24), economizer (15), air preheater (13), steam superheater (17); Water inlet pipe 24 links to each other with economizer 15, and economizer 15 links to each other with condenser 26; It is characterized in that: after the high temperature air that the rubbish after the filtration is got into air duct (6) by drying carries out drying, send into hopper (44) by rubbish conveyer (45) again.
2. a kind of high temperature garbage burning device as claimed in claim 1; The high temperature air that is characterised in that described garbage drying is by behind fresh air process air preheater (13) and the flue gas heat exchange, passes through dry with the middle lime-ash heat exchange gained of air duct (6) and grey pit (30) again.
3. a kind of high temperature garbage burning device as claimed in claim 1 is characterised in that and described steam-laden gas behind the drying garbage use the cold water condensation through condenser (26), further heats to economizer (15) after the cold water heat exchange; The gas of the drying behind the water vapor condensation causes combustion air inlet (9) by air-introduced machine (35), infeeds in the combustion chamber (32) combustion-supporting with classification after the lime-ash heat exchange in the grey pit (30).
CN2011203447362U 2011-09-14 2011-09-14 High-temperature garbage incinerator Expired - Lifetime CN202253664U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102997246A (en) * 2011-09-14 2013-03-27 邢献军 Garbage high-temperature incinerator
CN103375974A (en) * 2013-04-18 2013-10-30 安徽省昊晟能源科技有限公司 Novel hot air drying system for preparing power
CN105605589A (en) * 2016-01-27 2016-05-25 北京神雾环境能源科技集团股份有限公司 Method for recycling waste heat of rubbish pyrolysis residue by using heat accumulating type ceramic ball

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102997246A (en) * 2011-09-14 2013-03-27 邢献军 Garbage high-temperature incinerator
CN103375974A (en) * 2013-04-18 2013-10-30 安徽省昊晟能源科技有限公司 Novel hot air drying system for preparing power
CN105605589A (en) * 2016-01-27 2016-05-25 北京神雾环境能源科技集团股份有限公司 Method for recycling waste heat of rubbish pyrolysis residue by using heat accumulating type ceramic ball

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Granted publication date: 20120530

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