CN2562079Y - Harmless directly combusting integrated garbage incinerator - Google Patents

Harmless directly combusting integrated garbage incinerator Download PDF

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Publication number
CN2562079Y
CN2562079Y CN02276158U CN02276158U CN2562079Y CN 2562079 Y CN2562079 Y CN 2562079Y CN 02276158 U CN02276158 U CN 02276158U CN 02276158 U CN02276158 U CN 02276158U CN 2562079 Y CN2562079 Y CN 2562079Y
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China
Prior art keywords
furnace
air
boiler water
inlet
waste
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Expired - Fee Related
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CN02276158U
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Chinese (zh)
Inventor
王�华
胡建杭
何方
包桂蓉
马文会
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN02276158U priority Critical patent/CN2562079Y/en
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Publication of CN2562079Y publication Critical patent/CN2562079Y/en
Anticipated expiration legal-status Critical
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Abstract

A harmless direct-fired integrated waste incinerator comprises an ash mouth, a incinerator bottom, an ignition burner, a tuyere, a combustion-supporting air bellow jacket, a furnace, a direct-fired boiler water cover, a feeding device, a hot water outlet of boiler water cover, a cool water inlet of boiler water cover, a combustion-supporting air inlet, a cyclone, a secondary air inlet, a flue, and an additive inlet etc; the incinerator effectively integrates waste incineration, waste heat utilization, air preheating and cyclone dedusting, and waste, water and air can reasonably flow; the utility model enhances the burnout rate of waste and inhibits the generation of harmful materials like dioxins, with high adaptation in waste processing, high heat usage rate and reduced waste-processing cost.

Description

Innoxious direct combustion integrated form incinerator
(1) technical field: garbage disposal
(2) technical background: along with growing with each passing day of progress, the urban population of expanding economy, society, China's domestic waste pollutes and becomes increasingly conspicuous.The generation of China's domestic waste in 2000 is about 1.5 hundred million tons, long-term cumulant reaches 6,000,000,000 tons, and the domestic waste annual production only has minority through harmless treatment with the speed increase in every year 8~10%, the garbage-surrounded city phenomenon is commonplace, and secondary pollution is serious.The unreasonable punishment of rubbish causes great threat to environment and human health, also causes the huge wasting of resources simultaneously.
Traditional trash processing way mainly contains landfill method and composting process.The landfill method treating capacity is big, convenient and easy, reduced investment, is the main method that China handles domestic waste at present.But cause secondary pollution (atmosphere pollution, underground water and soil) behind the garbage loading embeading easily, the cumulative investment amount is big, and takies a large amount of soils.The compost rule is because a large amount of of economical and practical chemical fertilizer popularize, so the market of compost is more and more littler, a large amount of composting plants get into a difficult position.At present, only there is 1/3 rubbish to carry out sanitized in China.China has become the heaviest country of rubbish burden in the world, domestic waste innoxious, subtract appearanceization and recycling treatment is extremely urgent.
Incineration treatment of garbage technology because have subtracts appearanceization, innoxious and resource effect and the extremely favor of developed country significantly.Domestic incineration treatment of garbage mode mostly is fire grate burning formula greatly, adopts fluidization to burn on a small quantity at present, and the overall technology level is lower.If it is huge that direct introduction of foreign technology is not only invested, and fail to reach the initial conception of design.We have proposed innoxious direct combustion integrated form incinerator, the utility model and the applicant's the patent No. be ZL 00 2 59909.0 " the direct fusion and gasification, and combustion stove of domestic waste " and; ZL 01 2 06565.X " innoxious airtight refuse gasification reducing and smelting incinerator " compare, present technique is when utilizing international advanced technology, again in conjunction with the actual conditions of China's municipal refuse characteristic, furnace type structure, feeding device, supply air system and the residual heat using device of incinerator designed and innovate, be more suitable in (combustible component is few to China's municipal refuse, calorific value is low, the characteristics that moisture content is high) carry out burning disposal.This technology not only can effectively subtract appearance, decrement to rubbish, but also has realized the resource of garbage disposal and suppressed the generation of noxious material in the burning process.
The utility model is a kind of novel innoxious direct combustion integrated form incinerator.This technology is carried out effective and reasonable integrated to incinerator, waste heat boiler, air preheater and cyclone dust collectors, rubbish is directly burned under the temperature of 850 ℃~1100C, make pathogen in the rubbish utterly destroyed and effectively suppress to burn in the generation of harmful substance; Be integrated in waste heat boiler on the furnace wall and both possessed the function of UTILIZATION OF VESIDUAL HEAT IN, possess the function and protecting furnace wall of water-cooling wall again and the combustion air that infeeds is heated; The flying dust in the flue gas is not only removed in the cyclone dust removal that is installed in furnace outlet effectively, and carries out preheating and reach making full use of of waste heat infeeding combustion air; Heating infeeds burner hearth to combustion air through air preheater.After the waste incineration, lime-ash accounts for below 15% of rubbish original volume, has reached minimizing well.And paper, plastics and other organic matters are removed after burning fully, to the recovery of metal and glass also than being easier to.
(3) summary of the invention:
1, goal of the invention: reach innoxious, subtract the purpose of appearanceization and resource by burning to rubbish.
2, technology contents:
Fig. 1, the 2nd, the design's circle (rectangle) shaft (tower) furnace is formed the front view and the vertical view thereof of structure; Fig. 3 is the enlarged drawing in igniter burner and Fig. 4 air port; Fig. 5, the 6th, rectangle (circle) horizontal chamber furnace (oven) is formed the front view and the vertical view thereof of structure.Wherein form by ash mouth 1, furnace bottom 2, igniter burner 3, air port 4, combustion air bellows overcoat 5, burner hearth 6, direct-fired boiler water jacket 7, feed arrangement 8, boiler water jacket hot water outlet 9, boiler water jacket cooling water inlet 10, combustion air inlet 11, cyclone dust collectors 12, auxiliary air import 13, cyclone dust collectors exhaust pass 14, additive entrance 15 and furnace outlet flue 16.Igniter burner is made up of fuel inlet 17, combustion air inlet 18 and burner spout 19, and it is positioned at the burner hearth lower end from furnace bottom 100~350mm, tuyere diameter 15~50mm, and the air port dislocation is arranged, and the upper furnace air port is arranged sparse, and centre-to-centre spacing is 300~600mm; Arrange closely in the lower furnace portion air port, and centre-to-centre spacing is 180~350mm; The air port is 0~10 degree to furnace bottom inclination angle of inclination beta.Feed arrangement can be designed to the reinforced and feeding screw machinery feed of belt hopper according to actual needs, and the following gradient α of hopper import is 20~60 degree.The auxiliary air import is positioned at the cyclone dust collectors straight drum part, 1/4~1/3 place from top to bottom, and the air intake direction of rotation is consistent with the flue gas direction, combustion air inlet is positioned at the bottom of cyclone dust collectors straight drum part, the additive inlet is positioned at 100~200mm under burner hearth and the flue intersection, and internal layer is the boiler water jacket in the furnace wall, and this boiler water cover is arranged at hearth outer wall, the skin of this boiler water jacket and flue, cyclone dust collectors skin are provided with the combustion air bellows, hearth area 0.5~10m 2
This stove can be designed to vertical circle (or rectangle) burner hearth, also can be designed to horizontal circular (or rectangle) burner hearth.The lime-ash outlet is decided according to stove ability and deslagging mode, can be designed to discontinuous or continous way, self-action or mechanical type.
3, the advantage that has of the design compared with prior art:
1). compact conformation, capital cost are low, reduced investment; Applicability is strong, and the nothings such as moisture, thickness and calorific value of rubbish are strict with; Wide accommodation is specially adapted to places such as cities and towns, biotope, school and is used for disposal of refuse on the spot, and to handling the moisture height, organic flammable branch is few, and the rubbish adaptability that calorific value is low is good;
2). technological process is short, the furnace bed index height; Utilization rate of waste heat can reach about 30%;
3). the automaticity height, easy to operate;
4). the heat that incineration firing produces is easy to recycle;
5). flue dust and nuisance content are little in the flue gas, and environmental pollution is little;
6). that has realized garbage disposal subtracts appearanceization, innoxious and resource.
(4) description of drawings:
Fig. 1, the 2nd, the design's circle (rectangle) shaft (tower) furnace is formed the front view and the vertical view thereof of structure; Fig. 3 is the enlarged drawing in igniter burner and Fig. 4 air port; Fig. 5, the 6th, rectangle (circle) horizontal chamber furnace (oven) is formed the front view and the vertical view of structure.1 ash mouth, 2 ash buckets, 3 igniter burners (forming), 4 air ports, 5 combustion air bellows overcoats, 6 burner hearths, 7 direct-fired boiler water jackets, 8 feed arrangements, the outlet of 9 boiler hot-waters, 10 boiler feedwater imports, 11 combustion air inlet, 12 cyclone dust collectors, 13 auxiliary air imports, 14 cyclone dust collectors exhaust pass, 15 additive entrances, 16 furnace outlet flues among the figure by fuel inlet 17, combustion air inlet 18 and burner spout 19, α is a gradient under the hopper feed, β be the air port to the furnace bottom gradient, γ is the furnace bottom gradient.
(5) specific embodiment
Embodiment 1, circular shaft (tower) furnace 1. implementation conditions 1). the furnace construction parameter
Hearth area 1.5m 2, the high 2.8m of stove, siege ability 8t/m 2.d, ash bucket tapering 45 degree, tuyere diameter 25mm, the maximum 300mm (top) of air port centre-to-centre spacing, minimum 210mm (bottom), air port angle of inclination beta 6 degree, ash mouthful ¢ 300mm; Blast intensity 35m 3/ m 2.min, blast pressure 38KPa; Secondary wind blast is 1.7Kpa, and air quantity is 490m 3/ h; Confluent is 0.3m 3/ h, hydraulic pressure are 56Kpa.2). and the composition of rubbish (physics, %): the kitchen surpluss 37.0, paper 20.0, plastics 10.0, glass 7.0, metal 1.5, fabric 9.0, combustible 6.0, incombustible 9.5; The low heat value of rubbish: 51840kJ/kg; 3). combustion air primary air coefficient of excess: 1.10; Auxiliary air coefficient of excess: 1.23; 4) the lime stone addition accounts for 6.5% of quantity of refuse.2. result of implementation combustion zone temperature: 970 ℃; Flue gas temperature of hearth outlet: 864 ℃; Dust collector efficiency: 84.4%; The composition of lime-ash: %SiO 243.4 CaO 18.3, Al 2O 328.3 MgO 4.3, Na 2O 3.6, K 2O 0.5, Fe 2O 31.6 cyclone dust collectors outlet smoke components: %N 272.20, CO 216.32, H 2O 8.93, O 22.40, other 0.15 (SO wherein 2<250ppm; NO x<220ppm; CO<350ppm; HCl<60ppm).Example 2, rectangle horizontal chamber furnace (oven) 1. implementation conditions 1). the furnace design parameter
Hearth area 6.5m 2, the high 2.6m of stove, furnace bottom gradient γ 30~45 degree, siege ability 6t/m 2.d, tuyere diameter 20mm, the maximum 300mm (top) of air port centre-to-centre spacing, minimum 180mm (bottom), air port angle of inclination beta 4 degree, ash mouthful (3) 900 * 500mm 2Blast intensity 35m 3/ m 2.min, blast pressure 28KPa; Secondary wind blast is 1.7Kpa, and air quantity is 1442m 3/ h; Confluent is 1.3m 3/ h, hydraulic pressure are 43Kpa.2) composition of rubbish (physics, %) kitchen surpluss 35.0, paper 27.0, plastics 8.0, glass 5.0, metal 2.0, fabric 7.0, combustible 12.0, incombustible 4.0; The low heat value of rubbish: 5640kJ/kg; 3). combustion air primary air coefficient of excess: 1.08; Auxiliary air coefficient of excess: 1.21; 4) the lime stone addition accounts for 4.7% of quantity of refuse.2. result of implementation combustion zone temperature: 1034 ℃; Flue gas temperature of hearth outlet: 901 ℃; Dust collector efficiency: 80.1%; The composition of lime-ash: %SiO 241.5 CaO 17.4, Al 2O 326.6 MgO 5.3, Na 2O 4.2, K 2O 0.8, Fe 2O 34.2 cyclone dust collectors outlet smoke components: %N 272.5, CO 216.98, H 2O 7.81, O 22.52, other 0.17 (SO wherein 2<250ppm; NO x<220ppm; CO<350ppm; HCl<60ppm).

Claims (3)

1, a kind of innoxious direct combustion integrated form incinerator, it is characterized in that: it comprises ash mouthful (1), furnace bottom (2), igniter burner (3), air port (4), combustion air bellows overcoat (5), burner hearth (6), direct-fired boiler water jacket (7), feed arrangement (8), boiler water jacket hot water outlet (9), boiler water jacket cooling water inlet (10), combustion air inlet (11), cyclone dust collectors (12), auxiliary air import (13), cyclone dust collectors exhaust pass (14), additive entrance (15) and furnace outlet flue (16) are formed, igniter burner is by fuel inlet (17), combustion air inlet (18) and burner spout (19) are formed, it is positioned at the burner hearth lower end from furnace bottom 100~350mm, tuyere diameter 15~50mm, the air port dislocation is arranged, the centre-to-centre spacing in upper furnace two air ports is that 300~600mm lower furnace portion, two air port centre-to-centre spacing are 180~350mm, the air port tilts to burner hearth bottom, angle of inclination beta is 0~10 degree, gradient α is 20~60 degree under the hopper import, the auxiliary air import is positioned at the cyclone dust collectors straight drum part, 1/4~1/3 place from top to bottom, and the air intake direction of rotation is consistent with the flue gas direction, combustion air inlet is positioned at the bottom of cyclone dust collectors straight drum part, the additive inlet is positioned at 100~200mm under burner hearth and the flue intersection, internal layer is the boiler water jacket in the furnace wall, this boiler water cover is arranged at hearth outer wall, the skin of this boiler water jacket and flue, the cyclone dust collectors skin is provided with the combustion air bellows, hearth area 0.5~10m 2, this stove can be designed to vertical circle (or rectangle) burner hearth, also can be designed to horizontal circular (or rectangle) burner hearth.
2, incinerator according to claim 1, it is characterized in that: furnace bottom is designed to ramp type, and its inclination angle γ is 30~45 degree.
3, according to claim 1,2 described incinerators, it is characterized in that: feed arrangement is a power feed.
CN02276158U 2002-08-17 2002-08-17 Harmless directly combusting integrated garbage incinerator Expired - Fee Related CN2562079Y (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102297433A (en) * 2011-05-31 2011-12-28 福建省丰泉环保控股有限公司 Method for removing dioxin from fume of garbage incinerator
CN102345861A (en) * 2010-07-22 2012-02-08 创意能源控股有限公司 Combustion apparatus with improved thermal efficiency
CN104976620A (en) * 2015-07-06 2015-10-14 福建朗乾坤环保科技有限公司 Device and method for garbage incineration

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102345861A (en) * 2010-07-22 2012-02-08 创意能源控股有限公司 Combustion apparatus with improved thermal efficiency
CN102345861B (en) * 2010-07-22 2014-02-26 创意能源控股有限公司 Combustion apparatus with improved thermal efficiency
CN102297433A (en) * 2011-05-31 2011-12-28 福建省丰泉环保控股有限公司 Method for removing dioxin from fume of garbage incinerator
CN102297433B (en) * 2011-05-31 2013-03-20 福建省丰泉环保控股有限公司 Method for removing dioxin from fume of garbage incinerator
CN104976620A (en) * 2015-07-06 2015-10-14 福建朗乾坤环保科技有限公司 Device and method for garbage incineration

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