CN2456031Y - Direct gasifying combustion furnace for urban garbage - Google Patents
Direct gasifying combustion furnace for urban garbage Download PDFInfo
- Publication number
- CN2456031Y CN2456031Y CN00259909U CN00259909U CN2456031Y CN 2456031 Y CN2456031 Y CN 2456031Y CN 00259909 U CN00259909 U CN 00259909U CN 00259909 U CN00259909 U CN 00259909U CN 2456031 Y CN2456031 Y CN 2456031Y
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- furnace
- outlet
- furnace bottom
- auxiliary fuel
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- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a direct melting and gasifying burning furnace for city domestic garbage, which is composed of a flue, a feeding device, an evaporating and cooling furnace body, an auxiliary fuel burner, an inner lining of a furnace bottom, a molten slag and alloy outlet, an additive feeding device, a cooling water inlet, a cooling water outlet, etc., wherein, a furnace outer casing forms a steel frame structure. The utility model has the advantages of simple structure and high furnace bed indexes, and has the advantages that valuable metal is easily recovered, the molten slag can be regenerated for resources, and the volume reduction, the harmlessness, and the resources of garbage treatment are realized, being suitable for the treatment of the various city domestic garbage.
Description
The utility model relates to the gasification combustion furnace that a kind of domestic waste is directly handled.
Along with the increase day by day of progress, the urban population of expanding economy, society (according to the prediction of urban construction and development department of nation-building portion, China's urban population quantity will reach 6～700,000,000 in following 10 years, account for China's total population quantity about 50%) and the improving constantly of people's living standard, the house refuse amount that produce every day will increase.It is reported, the annual production of domestic waste per capita of China at present reaches 400kg/ (man-year), and annual average rate of increase is 7～10%, the house refuse year amount of clearing in 668 cities of 1999 China reaches 1.14 hundred million tons, the domestic waste storage is about more than 60 hundred million tons, and rubbish appropriation of land area has surpassed 500,000,000 m
3, existing more than 200 city, the whole nation surrounded by rubbish.
China's technology of garbage disposal is also quite backward compared with developed countries at present, and most of heap that adopts buries processing, and part is used for combustion power generation etc., heap buries processing and not only takies a large amount of soils, and soil, underground water, atmosphere etc. are worked the mischief, serious environment pollution jeopardizes the human living space.The burning city domestic garbage treatment technology can reach and subtract appearanceization, innoxious and resource, thereby extremely the parent of developed country looks at.Existing domestic incineration treatment of garbage mode mostly is the fire grate combustion-type greatly, adopts fluidized combustion on a small quantity, the overall technology level is lower, on the other hand along with the increase of macromolecular compound content such as plastics in the rubbish, this traditional mode itself can produce new toxic pollutant (such as bioxin dioxins class etc. again in processing procedure), lime-ash after handling simultaneously fails again to make full use of, the valuable metal in the rubbish does not have fine recovery yet, so existing treatment technology can not adapt to the human kind sustainable development needs.
In order to alleviate human survival environment is brought the pressure of destruction, developed country has begun to advocate and striving for the zero-emission (zero emission) of garbage disposal.According to the characteristics of the existing technology of garbage disposal of developed country and China's domestic waste, we have proposed domestic waste novel melting gasification, and combustion generation technology, and have successfully developed the direct fusion and gasification, and combustion stove of domestic waste on this basis.This technology not only can be controlled the generation of dioxins materials, but also can realize the comprehensive utilization of rubbish.
The purpose of this utility model is a kind of novel fusion and gasification, and combustion stove of design, and domestic waste reaches after this stove is handled and subtracts appearanceization, innoxious and resource, can not produce new toxic pollutant in the processing procedure, also can realize the comprehensive utilization of rubbish.
The utility model is to realize by following technical scheme.
Fig. 1 is a front view of the present utility model, and Fig. 2 is a side view.It is made up of high-temperature combustible gas body and exhanst gas outlet 1, gasification cooling flue 2, garbage feeding device 3, vaporization cooling body of heater 4, steelframe housing 5, auxiliary fuel burners 6, liquid slag outlet 7, bottom lining 8, molten alloy outlet 9, additive charging gear 10, cooling water intake 11 and cooling body of heater delivery port 12 parts.Garbage feeding device 3 is positioned at apart from furnace bottom 3/4～4/5 place; Auxiliary fuel burners is symmetrically distributed in the both sides of stove, and its size and number needs design according to the size of stove, apart from furnace bottom 1/4～1/3 place; Liquid slag outlet 7 is positioned at apart from furnace bottom 1/5～1/4 place; Molten alloy outlet 9 is positioned at apart from furnace bottom 1/6～1/5 place; Additive charging gear 10 is in (the above distance of giving is based on furnace height all) on the same horizontal level with the garbage feeding device.
Whole stove adopts the vaporization cooling, be to constitute by vaporization cooling body of heater with furnace bottom around the furnace wall, the design in vaporization cool cycles path will design according to the size of stove, the vaporization cool cycles of furnace wall adopts by the bottom entry, after circulating by the top water outlet, the vaporization cool cycles of furnace bottom then adopts by an end entry, after circulating by other end water outlet.Angle α between auxiliary fuel burners 6 and horizontal plane is 0～30 degree.This auxiliary fuel burners can be made of nozzle 13, auxiliary fuel inlet 14, primary air inlet 15 and valve 16.The enter the mouth 15 parallel installations and be 15～45 to spend of auxiliary fuel inlet 14 and primary air with the angle β of nozzle 13.
Domestic waste after collection transported is added in the stoves by inlet 3, and by installing 10 places with in additives such as lime stone, the soda adding stove, add auxiliary fuel (as fine coal) and add primary air or oxygen enrichment from installing 14 simultaneously, be sent in the stove by nozzle 13 again from installing 15.High-temperature combustible gas body that domestic waste produces after the stove internal combustion and flue gas enter secondary combustion chamber and afterheat boiler electricity-generating system or central heating system by outlet 1 and carry out heat utilization, the cooling water of gasification cooling flue 2 is entered by inlet 11, in body of heater, flow out from exporting 12 after the circulation, gasification cooling flue 2, vaporization cooling body of heater 4 and bottom lining 8 not only can prolong the service life of flue and body of heater, and can improve the thermal efficiency of whole stove, liquid slag after the burning can be used as building materials etc. by going out after liquid slag outlet 7 is discharged, metal species discarded object (mainly refer to still fall together along with house refuse hard goods) the then atmosphere by melt-combustion chamber in the control stove makes it to become alloy and discharges from molten alloy outlet 9 and recycled, steelframe housing 5 mainly works the body of heater effect of supporting, and valve 16 is mainly in the maintenance of auxiliary fuel combustion system use during with maintenance.
The advantage that has of the design compared with prior art:
1). simple in structure, capital cost is low;
2). the applicability that various application of city life garbage are handled is strong;
3). the furnace bed index height;
4). valuable metal is easy to reclaim;
5). the liquid slag renewable resourceization;
6). the heat that incineration firing produces is easy to recycle;
7). alleviated pollution greatly to environment;
8). that has realized garbage disposal subtracts appearanceization, innoxious and resource.
Fig. 1 is a front view of the present utility model.1 is fuel gas and exhanst gas outlet among the figure, 2 is gasification cooling flue, and 3 is the garbage feeding device, and 4 are vaporization cooling body of heater, 5 is the steelframe furnace shell, 6 is auxiliary fuel burners, and 7 are the liquid slag outlet, and 8 is bottom lining, 9 are the molten alloy outlet, 10 is the additive charging gear, and α is the angle between auxiliary fuel burners 6 and the horizontal plane, and β is the angle between auxiliary fuel inlet 14 and primary air inlet 15 and the nozzle 13.Fig. 2 is a side view.11 is cooling water intake among the figure, and 12 are cooling body of heater delivery port.Fig. 3 is the enlarged drawing of auxiliary fuel burners.13 is nozzle among the figure, and 14 are the auxiliary fuel inlet, and 15 are the primary air inlet, and 16 is valve.
Embodiment
1. implementation condition
1). the furnace construction parameter
Hearth area 2m
2, the high 3m of stove; Domestic waste charging gear 3 is apart from furnace bottom 2.3m; Additive charging gear 10 is apart from furnace bottom 2.3m; Auxiliary fuel burners 6 is apart from furnace bottom 0.9m, and wherein α is 15 degree, and β is 30 degree, and the quantity of burner is 8; Liquid slag outlet 7 is apart from furnace bottom 0.7m; Molten alloy outlet 9 is apart from furnace bottom 0.55m; Each face of furnace wall and furnace bottom respectively use a vaporization cool cycles.
The composition of house refuse (as fired basis):
Moisture 45%, ash content 27%, fixed carbon 16%, hydrogen 2.5%, oxygen 8.5%, nitrogen 0.56%, sulphur 0.04%, chlorine 0.4%;
Primary air coefficient of excess: 0.65;
Fine coal addition: 15%;
2. result of implementation
Melt-combustion temperature: 1301 ℃;
Combustible gas component:
N
260.1％,CO
27.9％,CO
26.3％,H
24.2％,CH
41.5％；
Fuel gas temperature: 1145 ℃;
The composition of liquid slag:
SiO
240.4％,CaO26.3％,Al
2O
327.7％,MgO1.3％,Na
2O3.6％,K
2O0.5％,Fe
2O
30.2％
Claims (1)
1. direct fusion and gasification, and combustion stove of domestic waste, it is characterized in that: it is made up of high-temperature combustible gas body and exhanst gas outlet (1), cooling stack (2), garbage feeding device (3), vaporization cooling body of heater (4), steelframe housing (5), auxiliary fuel burners (6), liquid slag outlet (7), bottom lining (8), molten alloy outlet (9), additive charging gear (10), cooling water intake (11), cooling body of heater delivery port (12), and the garbage feeding device is positioned at apart from furnace bottom 3/4～4/5 place; Auxiliary fuel burners is symmetrically distributed in the both sides of stove, apart from furnace bottom 1/4～1/3 place; The liquid slag outlet is positioned at apart from furnace bottom 1/5～1/4 place; The molten alloy outlet is positioned at apart from furnace bottom 1/6～1/5 place; Additive charging gear and garbage feeding device are on the same horizontal level, constitute by vaporization cooling body of heater with furnace bottom around the furnace wall, the vaporization cool cycles of furnace wall adopts by the bottom entry, after circulating by the top water outlet, furnace bottom then adopt by an end entry after circulating by other end water outlet, angle α between auxiliary fuel burners and horizontal plane is 0～30 degree, auxiliary fuel inlet (14) and (15) the parallel installation of primary air inlet, and be 15～45 to spend with the angle β of nozzle (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00259909U CN2456031Y (en) | 2000-12-19 | 2000-12-19 | Direct gasifying combustion furnace for urban garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00259909U CN2456031Y (en) | 2000-12-19 | 2000-12-19 | Direct gasifying combustion furnace for urban garbage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2456031Y true CN2456031Y (en) | 2001-10-24 |
Family
ID=33615825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00259909U Expired - Fee Related CN2456031Y (en) | 2000-12-19 | 2000-12-19 | Direct gasifying combustion furnace for urban garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2456031Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623353A (en) * | 2020-06-04 | 2020-09-04 | 苏州同和环保工程有限公司 | Melting reduction processing system to rubbish |
-
2000
- 2000-12-19 CN CN00259909U patent/CN2456031Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623353A (en) * | 2020-06-04 | 2020-09-04 | 苏州同和环保工程有限公司 | Melting reduction processing system to rubbish |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |