CN2685720Y - Vibrating fire grate gasification incinerator - Google Patents
Vibrating fire grate gasification incinerator Download PDFInfo
- Publication number
- CN2685720Y CN2685720Y CN 200420015176 CN200420015176U CN2685720Y CN 2685720 Y CN2685720 Y CN 2685720Y CN 200420015176 CN200420015176 CN 200420015176 CN 200420015176 U CN200420015176 U CN 200420015176U CN 2685720 Y CN2685720 Y CN 2685720Y
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- China
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- fire grate
- combustion chamber
- incinerator
- gasification combustion
- gasification
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Abstract
The utility model relates to a vibrating fire grate gasification incinerator. The specific structure of the utility model is that the integral chamber type fire grate is of symmetrical step form, a lifting lug is fixed on the fire grate, and the lifting lug is hang on the lifting lug of a bracket via a steel cable. The upper side of the fire grate is provided with a gasification combustion chamber which is fixed on the bracket, the part between the gasification combustion chamber and the fire grate is sealed via a high-temperature fire-resistance cloth. The upper end of the gasification combustion chamber is connected with two combustion chambers via a flue. The combustion mode of upper feeding type oxygen control is adopted in the incinerator, when the fire grate is vibrated, the two combustion chambers burn with cyclone. The utility model has the advantages of thorough burning, low manufacturing cost, satisfying higher environment emission standard, etc.
Description
Technical field
The burning disposal of industry, agricultural and life solid waste.Be mainly used in the burning that medical waste, house refuse, industry are thrown aside refuses such as thing, husk.Specifically be meant a kind of vibrating-grate stoker incinerator.
Background technology
Solid waste is solid and the gunk that abandons in human being's production, the life process, and it is the product of human material progress.Studies show that in the national economic development, the final products of society need only account for 20%～80% of raw material, 7%～80% one-tenth refuse.At present, China's municipal refuse year generation just reaches 1.5 hundred million tons, and increases progressively with 8%～10% annual growth.There are certain certainty in the generation of solid waste and discharging, and it is of a great variety as the final state of all contaminations, and complicated component very easily enters in atmosphere, water body and the soil, participate in the material circulation of the ecosystem, have potential, long-term harm.Therefore, how solid waste enforcement safety, appropriate processing have been become when previous very urgent task.
At present, the treatment technology of solid waste mainly comprises the chemical treatment of fragmentation, sorting, dehydration, biological treatment, burning, pyrolysis, hazardous waste and disposal etc.Different treatment technologies can independently use, also can be used, but to be used.
Burning disposal is a kind of high-temperature heat treatment technology of solid waste.In 800～1000 ℃ incinerator burner hearth, organic active composition in the refuse is by oxidation fully, and the inorganic component that stays becomes and melts slag and be discharged from, thereby refuse subtracted hold and stable.Burning disposal is because to have floor space few, round-the-clock operation, advantage such as applicability is wide, and the refuse stablizing effect is good and become one of main method of current waste disposal.Nearly all organic property solid waste and flammable inoganic solids refuse can be handled with burning method.For inorganic-organic Combination solid waste, if organic matter is a poisonous and harmful substance, burning is best processing method.Some specific organic property solid waste only is suitable for handling with burning method, and as hospital's carrying disease germs property discarded object, petrochemical plant and plastic molding and processing plant contain toxicity intermediate by-products and burnt shape waste residue.Current, the environment and the energy are the outstanding problems that development of world economy faces.Expanding economy cause the energy in short supply, the combustible solid wastes by utilizing amount then is growing on and on, so burning disposal is to utilize a kind of new way of the solid waste energy, is subject to people's attention day by day.
Incinerator is the nucleus equipment of solid waste high-temperature heat treatment, burns type of furnace difference, and directly effect is burned in influence.Use many type of furnaces at present and can be divided into stoker fired grate incinerator, sulfuration bed incinerator, rotary kiln incineration stove etc. by combustion system.The mechanical kiln grate furnace mainly contains following several form: reciprocating fire grate, pulse are thrown the dynamic formula fire grate, and inverse-push fire grate, drum-type grate, the fan-shaped convertible fire grate of ladder, multistage fluctuation formula fire grate, the driving fire grate is inclined upwardly.
There is following problem in this class grate incinerator:
(1) burning is not thorough, and the dioxin (Dioxins) that easily produces severe toxicity pollutes heavy metal pollution and HCL, CL such as Cd, As, Hg, Pb
2, SO
2Secondary pollution problem Deng sour gas.
(2) incinerator complex structure, mechanical part is many, the operating cost height, maintenance is inconvenient.
(3) the manufacturing cost height costs an arm and a leg, and result of use is undesirable.
Summary of the invention
The purpose of this utility model is exactly to have the problem that incinerator exists now in order to solve, and a kind of vibrating-grate stoker incinerator is provided.
The purpose of this utility model can be achieved through the following technical solutions:
This vibrating-grate stoker incinerator comprises support, body of heater, gasification combustion chamber, fire grate, charging aperture, discharge gate, blower fan, its concrete structure is that whole box fire grate is symmetrical stairstepping, be fixed with hanger on the fire grate, this hanger by wire rope hanging on the hanger of support, be gasification combustion chamber above the fire grate, gasification combustion chamber is fixed on the support.By the sealing of high-temperature flame-proof cloth, the gasification combustion chamber upper end connects dual firing chamber by flue between gasification combustion chamber and the fire grate.
The utlity model has following advantage:
1. changed the feeding manner of traditional mechanical kiln grate furnace, adopt the burning of upper feeding type control oxygen, utilize waste incineration self to produce flue gas heat, make rubbish be subjected to heated drying in dropping process, distill out fugitive constituent, fixed carbon falls into the air of sending under bottom and the fire grate and mixes the generation oxidation reaction.This mode more helps the dry of rubbish and tissue burning on fire grate, meets the burning feature of incinerator, helps the gasification of rubbish.
2. fire grate adopts whole notch cuttype structure and unique air intake mode to design, and has avoided the seepage of lime-ash from the slit.Rubbish by fire grate vibration spasmodic motion, has improved upset, the agitation strength of rubbish on fire grate in the fire grate groove.The characteristics of existing grate furnace have the characteristics of fluid bed again.Burn effectively, hot burn decrement rate is less than 5%.
3. whole fire grate is suspended on the supporting construction of burner hearth outside, promotes the fire grate vibration by agitating of outside gas crusty pancake.Device structure is simple, does not have the complicated mechanical system, and all mechanical parts and actuating unit are entirely in the outside of burner hearth, and maintenance is convenient, and fault rate is low, and year operated in more than 8000 hours.
4. dual firing chamber is set separately, make the imflammable gas that produces in gasification combustion chamber enter dual firing chamber and auxiliary air is fully mixing further fire burns, temperature can reach 850 ℃～1100 ℃, makes harmful substance thoroughly decomposition at high temperature such as dioxin, satisfies stricter environmental emission standard.
5. refuse calorific value in burning process need not add auxiliary fuel when 1000kcal/kg is above, and the wind supply quantity of regulating primary and secondary air just can reach good burning effect, satisfies " 3T " key element of incineration of waste.Save operating cost.
6. there is not the complicated mechanical system, reasonable in design simple, the armamentarium production domesticization, therefore cheap for manufacturing cost, tally with the national condition, help more enterprise and join in environmental protection industry (epi), for bigger contribution is made in the environmental protection of China.
Description of drawings
Fig. 1 is a front view of the present utility model, expression overall structure, wherein (1) support, (2) fire grate hanger, (3) support hanger, (4) sealing, (5) gasification combustion chamber, (6) burner, (7) charging aperture, (8) connect flue, (9) expansion joint, (10) explosion proof door, (11) dual firing chamber, (12) exhanst gas outlet, (13) ash ejector, (14) fire grate.
Fig. 2 is the left view of Fig. 1, (15) manhole door wherein, (16) mucking machine.
Fig. 3 is the vertical view of Fig. 1, (17) burner wherein, (18) overfire air jet, (19) air bag, (20) tangent line baffle plate.
Fig. 4 is the partial enlarged drawing of I among Fig. 1, the seal form and the structure of expression gasification combustion chamber and fire grate, and wherein (21) are sealing air pipes.
Fig. 5 is the fire grate suspended structure schematic diagram of Fig. 2.
Fig. 6 is the cutaway view of Fig. 5 A-A, and wherein (22) are snubber blocks, and (23) are air inlets.
Fig. 7 is that the cutaway view of Fig. 6 B-B is represented fire grate symmetry ladder-type structure.
The specific embodiment
Embodiment (being described with reference to the accompanying drawings):
At first according to square support of size design of fire grate, four hangers are arranged for suspention fire grate usefulness on the support, gasification combustion chamber is fixed on the support.Fire grate is inserted in the bottom of gasification combustion chamber, seals with flexible refractory material (such as high-temperature flame-proof cloth) between fire grate and the gasification combustion chamber.
Fire grate is a box notch cuttype structure of integral body, the symmetrical structure of both ends high, middle low, be furnished with air inlet on every layer of ladder, air is sent into from the fire grate bottom in the casing by air blast and is entered gasification combustion chamber by air inlet after the circulation heating, and combustion air is provided.There are four hangers the fire grate both sides, and on the support hanger, the other end of fire grate connects air bag with wire rope suspensioning, make the air bag expansion promote the fire grate vibration by compressed air and do spasmodic motion to throw rubbish, rubbish and air are fully mixed, and burning thoroughly.Hot burn decrement rate is less than 5%.
Gasification combustion chamber adopts reverse-flow layout, form by burner hearth and vertical exhaust pass and charging aperture, rubbish is dropped on the fire grate along vertical flue by charging aperture, utilize waste incineration self to produce flue gas heat, make rubbish be subjected to heated drying in dropping process, distill out fugitive constituent, fixed carbon falls into the air of sending under bottom and the fire grate to be mixed oxidation reaction takes place.When being provided with a burner and lighting a fire for rubbish, gasification combustion chamber uses.
Couple together with flue between gasification combustion chamber and the dual firing chamber, flue dwindles when entering dual firing chamber tangentially and is connected with dual firing chamber.On flue, be furnished with overfire air jet, air with air blast from secondary tuyere spray into tangentially enter after mixing with flue gas dual firing chamber in the shape of a spiral shape flow and burning.
Dual firing chamber is a vertical cylindrical body, and the top is provided with an explosion proof door, and gas is got rid of from explosion proof door when furnace puff, plays the effect of protection body of heater.In dual firing chamber's upper side a burner is installed, combustion-supporting when refuse thermal value is low.
The combustion mechanism of this incinerator
What the vibration incinerator adopted is upper feeding type control oxygen combustion system, is up-to-date burning theory.In gasification combustion chamber, air enters burning zone from bottom to top, initiate garbage utilization waste incineration self produces flue gas heat and is subjected to heated drying earlier, distill out fugitive constituent, fixed carbon falls into the air generation oxidation reaction of sending under bottom and the fire grate, the carbon dioxide that generates upwards runs into red-hot fixed carbon generation redox reaction, forms carbon monoxide, Here it is reducing zone.Because anoxic, this part carbon monoxide can not burn, but tangentially enter dual firing chamber and auxiliary air mixed combustion with volatile combustible gases, and temperature reaches 850 ℃～1100 ℃.State is mobile in the shape of a spiral in dual firing chamber for flue gas.Make flue gas and air fully to mix like this, and prolonged the time of staying of flue gas, satisfy " 3T " key element of burning in dual firing chamber.Flying dust is owing to the ash bucket of action of centrifugal force below inwall is fallen into cyclone chamber, so the effect of deduster has also been played by dual firing chamber.The flue gas that comes out from dual firing chamber enters bootstrap system or is cooled to about 200 ℃, handles entering atmosphere after reaching state environmental emissioning standard through smoke processing system.
Claims (5)
1. vibrating-grate stoker incinerator, it comprises support, body of heater, gasification combustion chamber, fire grate, charging aperture, discharge gate, blower fan, it is characterized in that whole box fire grate is symmetrical stairstepping, be fixed with hanger on the fire grate, this hanger on the hanger of support, is gasification combustion chamber by wire rope hanging above the fire grate, and gasification combustion chamber is fixed on the support, by the sealing of high-temperature flame-proof cloth, the gasification combustion chamber upper end connects dual firing chamber by flue between gasification combustion chamber and the fire grate.
2. according to the said incinerator of claim 1, it is characterized in that an end of fire grate is connected with air bag.
3. according to the said incinerator of claim 1, it is characterized in that dual firing chamber is circular, has the tangent line baffle plate in the flue of connection dual firing chamber.
4. according to the said incinerator of claim 1, it is characterized in that every layer at the stairstepping fire grate has air inlet.
5. according to the said incinerator of claim 1, it is characterized in that the top of charging aperture in gasification combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015176 CN2685720Y (en) | 2004-01-26 | 2004-01-26 | Vibrating fire grate gasification incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015176 CN2685720Y (en) | 2004-01-26 | 2004-01-26 | Vibrating fire grate gasification incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685720Y true CN2685720Y (en) | 2005-03-16 |
Family
ID=34668694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015176 Expired - Fee Related CN2685720Y (en) | 2004-01-26 | 2004-01-26 | Vibrating fire grate gasification incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685720Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406301A (en) * | 2014-10-17 | 2015-03-11 | 芜湖市泰能电热器具有限公司 | Vibrating combustion rack of energy-saving boiler system |
| CN109373329A (en) * | 2018-10-25 | 2019-02-22 | 肖江江 | A kind of energy-saving and environment-friendly domestic waste incineration |
-
2004
- 2004-01-26 CN CN 200420015176 patent/CN2685720Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406301A (en) * | 2014-10-17 | 2015-03-11 | 芜湖市泰能电热器具有限公司 | Vibrating combustion rack of energy-saving boiler system |
| CN109373329A (en) * | 2018-10-25 | 2019-02-22 | 肖江江 | A kind of energy-saving and environment-friendly domestic waste incineration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050316 |