CN2613691Y - Incinerator for combustible refuse - Google Patents
Incinerator for combustible refuse Download PDFInfo
- Publication number
- CN2613691Y CN2613691Y CN 03216261 CN03216261U CN2613691Y CN 2613691 Y CN2613691 Y CN 2613691Y CN 03216261 CN03216261 CN 03216261 CN 03216261 U CN03216261 U CN 03216261U CN 2613691 Y CN2613691 Y CN 2613691Y
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- CN
- China
- Prior art keywords
- coal
- refuse
- fluidized bed
- circulating fluidized
- burning boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A treating apparatus for inflammable refuse comprises a ram pump, a coal-burning boiler for circulating fluidized bed and an agitating vessel which is used for forming paste mixture of refuse, fuel and water, wherein plug hole of the agitating vessel is connected to the ram pump via lines, and the ram pump is connected to the top of the coal-burning boiler for circulating fluidized bed via lines. The main technological characteristic of the utility model is to use of all-known coal-burning boiler for circulating fluidized bed in refuse burning which is to intimately mix the disintegrated inflammable organic refuse with inflammable matter like coal dust and coal mud or the like, thereby realizing refuse incineration by pyralysis and avoiding the generation of dioxin. Further the paste mixture is sent to the coal-burning boiler for circulating fluidized bed via the ram pump, and the entire apparatus is simpler and has low investment and higher operating reliability. The utility model is capable of changing pollution caused by casual refuse incineration into energy, and ash and clinker are good building materials, thereby realizing highly effective overall utilization of waste.
Description
Technical field
The utility model relates to the treating apparatus of rubbish, and described rubbish comprises various lives, industrial the like waste and various crop stalk.
Background technology
Incinerator is various informative, but temperature low (being lower than 800 ℃) in the ubiquity stove, and easily produce strong toxic pollutant such as dioxin and enter atmosphere with flue gas and form secondary pollution, and problem such as dust recycling difficulty is big, and equipment is perishable.Measure according to science, when stove internal combustion temperature is lower than 800 ℃, very easily produce dioxin, when ignition temperature is higher than 800 ℃, almost do not detect dioxin in the flue gas, thus 800 ℃ be critical-temperature, but at present the temperature in the incinerator is difficult to make it surpass 800 ℃ with the method for economy.
Coal-fired and coal-fired mud CFBB has been generally acknowledged it is a kind ofly can remove 90%SO
2With low NO
XIgnition temperature in the efficient and environment-friendly type boiler of discharge capacity, its burner hearth is 850～1100 ℃, and the coal wide accommodation is widelyd popularize and popularized in China.Coal slime is as the byproduct of coal preparation plant, and its moisture height, viscosity is big, calorific value is low, difficult treatment, and environmental pollution is serious.Coal slime is burnt directly into stove, and belt conveyer and drag conveyor and extruser are still used in its conveying, and the investment of these methods is big, poor reliability, and environmental pollution is still relatively more serious.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple, reliable, and the combustion decomposition of rubbish can prevent the incinerating and treating device of the combustible garbage that dioxin produces.
The incinerating and treating device of combustible garbage of the present utility model, it is characterized in that comprising agitator, this agitator is used for rubbish and mixes paste, plunger displacement pump, fire coal circulating fluid bed boiler with fuel with water formation, the drain hole of agitator is connected with plunger displacement pump by pipeline, and plunger displacement pump connects the top of fire coal circulating fluid bed boiler by pipeline.
Major technique characteristics of the present utility model are to have utilized known fire coal and coal-fired mud CFBB to be used for the burning disposal of rubbish, and paste is transported to CFBB by plunger displacement pump, and complete equipment is simpler, invest lowly, and operational reliability is higher.The groundwork principle is: with rubbish with mixing of similar combustibles such as coal dust or coal slime moisture paste enter burner hearth by the top squeeze that plunger displacement pump is transported to CFBB, after the paste contained humidity is running into high temperature in the process that falls immediately vaporized expanding paste is exploded into fragment and takes fire, after falling into the concentrated phase area of burner hearth bottom, the high hotbed material that is the fluidisation attitude rubs littler fragment to produce more acutely decomposition combustion completely, this moment, the rubbish fragment was had the fragment of the coal slime class material of certain viscosity to adhere to, can do not carried into the rear portion flue and break away from the high-temperature region by flue gas, thereby can not produce one of synthesis material of dioxin---aromatic ring type organic matter, and only produce CO
2And H
2O and other oxides.Simultaneously, mix CaCO in the bed material coal for desulfurization
3The CaO that decomposes the back generation removes and SO
2React and generate CaSO
4Also very easily generate CaCl outward, with another synthesis material of dioxin-HCI reaction
2, this has more reduced the possibility of generation dioxin, and has prevented the corrosion of HCI to equipment effectively.
In above-mentioned processing procedure, combustible garbage preferably is crushed to below the 50mm; The granularity of coal dust is preferably in below the 5mm; The water content of moisture paste is preferably 30～40%.
The mixed proportion of rubbish and coal dust or coal slime is dried rubbish: dry coal powder (in the dry coal powder)=1～2: 1 (weight ratio).
Coal dust, coal slime also can adopt flammable paste to substitute, as organic mud, mud as Sewage Plant, paper mill discharge, it also can be organic chemical industry's waste residue, mainly be to utilize the combustibility of these discarded objects to accomplish twice laid, the heat of burning is provided simultaneously, requires its calorific value should be not less than 6MJ/kg.The mixed proportion of they and rubbish is fallen to be advisable with incineration firing with itself and the common burning of rubbish fully.
The temperature of moisture paste high-temp combustion in fire coal circulating fluid bed boiler is 850～1100 ℃.
Rubbish described in the utility model comprises various lives, industrial the like waste and various crop stalk.
The outlet of fire coal circulating fluid bed boiler can continue to connect deduster, and the gas vent of deduster connects air-introduced machine.After paste high-temp combustion in burner hearth decomposes, the slag of larger particles is discharged from the bottom of fire coal circulating fluid bed boiler, thinner ash and flue gas enter into deduster, and thinner ash is discharged by the ash hole of deduster, and flue gas is sent into the smoke stack emission atmosphere by air-introduced machine.Deduster can adopt electrostatic precipitator, fiber bag precipitator etc.
Coal bunker is connected to the bottom of fire coal circulating fluid bed boiler by feeder, and the bottom of fire coal circulating fluid bed boiler is connected with pressure fan.
Advantage of the present utility model:
The coal slime plunger displacement pump conveying technology and the CFBB coal combustion technology of mature and reliable are combined, and formed package unit is simple, small investment, enforcement are easy, reliable.To mix equably in the combustible of coal dust, coal slime or similar coal slime after the flammable organic waste pulverizing, realized the pyrolytic burning of rubbish, prevent the generation of dioxin, and can realize the comprehensive high-efficiency utilization (lime-ash can be used as first-class building materials raw material) of refuse.
Description of drawings
Fig. 1 is the utility model device schematic diagram;
Among the figure: 1-garbage pulverator 2-coal pulverizer 3-agitator 4-plunger displacement pump 5-CFBB 6-electrostatic precipitator 7-air-introduced machine 8-chimney 9-coal bunker 10-feeder 11-pressure fan 12-chute 13 batcher 14-pipelines
The specific embodiment
Below in conjunction with Fig. 1 the processing procedure that the utility model reaches rubbish is elaborated:
Garbage pulverator 1 enters into agitator 3 with the rubbish of pulverizing by chute 12, and same coal is sent into coal dust in the agitator by coal pulverizer 2.In agitator, mix with water again to stir and form paste, agitator is connected with plunger displacement pump 4 by batcher 13, paste in the agitator is admitted to plunger displacement pump 4, plunger displacement pump 4 is connected with the top of fire coal circulating fluid bed boiler 5 by pipeline 14, the fire coal of fire coal circulating fluid bed boiler 5 bottoms is provided by coal bunker 9, feeder 10, the outlet of fire coal circulating fluid bed boiler 5 is connected with electrostatic precipitator 6, and the gas vent of electrostatic precipitator 6 connects air-introduced machine 7, enters chimney 8 then.
Below be concrete processing procedure:
The main fuel of CFBB is a coal, and granularity is≤10mm to mix the CaCO less than 0.5mm
3After deposit in the coal bunker 9, send into the bottom of burner hearth by feeder 10, be the burning of fluidisation attitude, temperature is 850～900 ℃ because the combustion-supporting effect of secondary wind, unburned CO, CH
4And H
2Heat is emitted in the further burning in middle part and top at burner hearth, and temperature herein will surpass 850 ℃ (850～1100 ℃).Sorted combustible garbage is crushed to the material with coal slime or similar coal slime below the 50mm through pulverizer and sends into agitator 3 with the coal dust less than 5mm that comes through coal pulverizer, add the paste that stirs into water content 30～40% behind the water and enter heavy caliber hydraulic planger pump 4 at a slow speed, the pressurization back is the cylindric burner hearth that falls into along the top that pipeline is clamp-oned CFBB (CFB) 5 by deadweight.Paste enters the high temperature that burner hearth just runs into 850～1100 ℃, after the moisture content rapid evaporation on surface, inflammable substance takes fire, inner contained moisture content is subjected to high temperature action vaporization generation pressure that cylindrical paste is exploded into fragment, in dropping process, blast is linksystem, burning is also more and more fierce simultaneously, when falling into burner hearth bottom, become fritter shape comburant, the souring that these fritters are subjected to fluidisation shape bed material again becomes tiny particle rapidly, enter the fluidisation attitude of seething up and down, combustion decomposition is more violent, and the organic combustible in rubbish and the coal obtains decomposing comparatively completely, no longer produce the aromatic ring type organic, the HCI that emits simultaneously also with CaO, MgO, AL
2O
3, FeO, K
2O, Na
2Alkaline matters such as O produce neutralization reaction and generate stable hydrochloric acid salt, have prevented the generation of dioxin and to the corrosion of equipment.The slag of larger particles is discharged from the bottom (A mouth) of fluidized-bed combustion boiler, and thinner ash is discharged by the ash hole (B mouth) that static removes device 6, and these two kinds of materials all are first-class raw materials of building materials such as making cement.The flue gas that does not contain dioxin after being cleaned is sent into chimney 8 by air-introduced machine 7 and is entered atmosphere.Pressure fan 11 provides the air of fluidisation and burning to CFBB 5.
Claims (3)
1, a kind of incinerating and treating device of combustible garbage, it is characterized in that comprising agitator, this agitator is used for rubbish and mixes paste, plunger displacement pump, fire coal circulating fluid bed boiler with fuel with water formation, the drain hole of agitator is connected with plunger displacement pump, and plunger displacement pump is connected to the top of fire coal circulating fluid bed boiler by pipeline.
2, treating apparatus according to claim 1 is characterized in that the outlet of fire coal circulating fluid bed boiler connects deduster, and the gas vent of deduster connects air-introduced machine.
3, treating apparatus according to claim 1 is characterized in that coal bunker is connected to the bottom of fire coal circulating fluid bed boiler by feeder, and the bottom of fire coal circulating fluid bed boiler is connected with pressure fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216261 CN2613691Y (en) | 2003-04-07 | 2003-04-07 | Incinerator for combustible refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216261 CN2613691Y (en) | 2003-04-07 | 2003-04-07 | Incinerator for combustible refuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613691Y true CN2613691Y (en) | 2004-04-28 |
Family
ID=34242907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216261 Expired - Fee Related CN2613691Y (en) | 2003-04-07 | 2003-04-07 | Incinerator for combustible refuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613691Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163333A (en) * | 2018-08-21 | 2019-01-08 | 肖成美 | A kind of solid-state castoff incineration treatment method |
| CN111878829A (en) * | 2020-07-28 | 2020-11-03 | 浦湘生物能源股份有限公司 | Coal and garbage coupling fuel comprehensive treatment system and method based on fluidized bed |
-
2003
- 2003-04-07 CN CN 03216261 patent/CN2613691Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163333A (en) * | 2018-08-21 | 2019-01-08 | 肖成美 | A kind of solid-state castoff incineration treatment method |
| CN111878829A (en) * | 2020-07-28 | 2020-11-03 | 浦湘生物能源股份有限公司 | Coal and garbage coupling fuel comprehensive treatment system and method based on fluidized bed |
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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 |