CN104058614B - The system of cement kiln synergic processing house refuse - Google Patents
The system of cement kiln synergic processing house refuse Download PDFInfo
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- CN104058614B CN104058614B CN201410312759.3A CN201410312759A CN104058614B CN 104058614 B CN104058614 B CN 104058614B CN 201410312759 A CN201410312759 A CN 201410312759A CN 104058614 B CN104058614 B CN 104058614B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The present invention relates to a kind of system of cement kiln synergic processing house refuse, comprise waste incineration and smoke processing system; Combustion-aid air system; Gas with foreign flavor treatment system; Steam boiler system; Percolate disposal system; Cinder and flying dust disposal system.Incinerator and cement clinker production line combine by the present invention preferably, utilize the high temperature of cement firing system, high stability, high concentration basic material, the series of characteristics such as long residence time, comparatively improve ground by dioxin harmful components in flue gas of refuse burning, harmful element in cinder and flying dust, percolate, gas with foreign flavor in garbage storing hole all realizes harmlessness disposing, on the requirement that the impact of environment can be up to state standards completely, really achieve house refuse " innoxious, subtract appearanceization, resource, environmental protection " object disposed.Flow process of the present invention is simple, easy and simple to handle, stable, it is little to invest, and is a kind of ideal Disposal of Domestic system.
Description
Technical field
The present invention relates to a kind of refuse disposal system, particularly relate to a kind of Disposal of City Domestic Garbage system.
Background technology
Domestic waste one refer to the discarded object that life of urban resident produces, source is complicated, forms also very complicated, is broadly divided into organic matter and inorganic matter.In recent years, along with the municipal administration of each big city, the developing rapidly of public utility construction, particularly Process of Urbanization Construction, urban electric power supply and combustion gas rate increase considerably, resident living and the level of consumption improve, and the content of organics in rubbish is in increase, and inorganic content is reducing gradually.China's rubbish also has the feature of moisture content high (being about 40 ~ 60%), calorific value lower (minimum can to 3700kJ/kg).
Current China rubbish heap storage over the years about 6,000,000,000 tons, occupy cultivated land and reach 500,000,000 square metres, municipal refuse generation about 2.64 hundred million tons in 2010, and just with average annual 5 ~ 8% speed increase, will reach 4.09 hundred million tons to the year two thousand thirty, the year two thousand fifty will reach 5.28 hundred million tons, urban garbage disposal has become one large " bottleneck " of restriction urban development, there is more than 200 city to be absorbed among rubbish encirclement in 660 cities, the whole nation, cause town and country calmodulin binding domain CaM environment to worsen, jeopardize sustainable development.
Urban garbage disposal, becomes worldwide social concern day by day, is very arduous comprehensive, a systematic engineering.At present, many countries in the world, especially some advanced countries, multiple way was once adopted to the process of domestic waste, as landfill method, composting process, heat treating process, worm method, domestic waste feeding, bacterial digestion, water ballast method, microwave treatment method or classification is reclaimed, comprehensive utilization etc.Wherein main processing method is landfill method, composting process and heat treating process; Landfill method wastes recyclable resource, and the garbage disposal cycle is long, and disposal ability is limited, also occupies a large amount of soils, there is serious secondary pollution, easily causes percolate and volatilization gas polluted underground water, air, causes soil desertification; Composting process only can organic principle in disposal of refuse, there is secondary pollution problem equally.Heat treating process mainly uses burning method at present, is also the waste disposal method that current countries in the world generally adopt, and has that treating capacity is large, to subtract capacitive good and have the feature of energy recovery.
Refuse incineration and power generation journey gets more and more in China, alleviates the problem of some refuse pollutions in burning away the refuse.But the garbage flying ash harmful components of refuse-burning plant are high, belong to the useless class of danger, have to pass through strict treatment technology process, usually by cement solidification landfill, still there is the danger of contaminated environment and take part place in the flying dust of this landfill.One employing burying method process of the lime-ash of the incinerator discharge of refuse-burning plant, owing to there are the harmful components such as heavy metal in cinder, therefore still there is the danger of environmental pollution in this method, such as Japan waits the lime-ash of the refuse-burning plant landfill of some countries to occur the accident of contaminated environment, sends into cement rotary kiln incineration disposal after having had some landfill yards to be dug out by landfill lime-ash.The incinerator of refuse-burning plant is when burning away the refuse, although incineration flue gas have passed through high temperature incineration in incinerator, but due to component of refuse and hot-restriking die larger, often there is temperature phenomenon on the low side, thus there is dioxin harmful components contaminated environment, in order to eliminate dioxin harmful substance, usually need to carry out desulfurization to waste gas, denitration, the process of Chu bioxin etc., thus consume a large amount of as lime stone, active carbon, ammoniacal liquor etc., the desulfurated plaster that desulfurization produces creates secondary pollution to environment, after active carbon class loses activity simultaneously, need again to process, increase the pressure of environment.
Summary of the invention
A kind of resource more, the domestic garbage treating system that innoxious, environmental pollution is little is the invention provides for above problem.The present invention is the combination by incinerator and cement clinker production line, make full use of the hot properties of cement kiln, the time of staying long characteristic, there is a series of advantage such as a large amount of alkaline material characteristic, system high stable characteristic, dispose domestic waste, reach the object polluting little, environmental friendliness and garbage as resource.
In order to overcome the above problems the system that the invention provides a kind of cement kiln synergic processing house refuse, comprising refuse burning system, it is characterized in that: also comprise cement clinker production line system;
Cement clinker production line system comprises rotary kiln, dore furnace, cooling blower, cooler, afterheat generating system;
Refuse burning system comprises incinerator, garbage storing hole, garbage percolation liquid treating system, grab bucket, driving, feed system, deodoration system, peculiar smell blower fan, air-introduced machine, primary air fan, high-temperature blower;
Native system is divided into following subsystem:
1. waste incineration and smoke processing system
Domestic waste is transported to airtight garbage storing hole through transport vehicle, and the rubbish in being cheated by garbage storing by driving crane and grab bucket is fed in incinerator by feed system and burns.Rubbish in incinerator through super-dry, burning, burn several process, the flue gas that incinerator is discharged is divided into two-way, , i.e. first via flue gas and the second road flue gas, wherein first via flue gas enters boiler, the flue gas going out boiler is extracted by high-temperature blower and becomes mixed flue gas after mixing with the second road flue gas going out incinerator, mixed flue gas passes into dore furnace, burn further under dore furnace hot environment, wherein the pernicious gas such as bioxin is thoroughly burned, the gas going out dore furnace is washed by alkaline matters such as the calcium oxide in a large amount of raw meal powders and calcium carbonate in the preheater of cement clinker burning system, particularly sulfur dioxide is with the chlorine element that bioxin decomposites is absorbed by raw meal powder, thus reach the object of gas cleaning.
2. combustion-aid air system
High temperature air from cement clinker production line is provided by the chamotte cooler of cement clinker production line, its temperature is 150 ~ 250 degree, the high temperature air extracted by air-introduced machine is blown in incinerator, for the drying garbage in incinerator and burning through several primary air fans of incinerator.
3. gas with foreign flavor treatment system
Garbage storing hole adopts airtight factory building, after rubbish enters garbage storing hole, usual storage 5 ~ 7 days, the air containing smell substance given out during rubbish storage is extracted by peculiar smell blower fan, and send in cooler through several cooling blowers of cement clinker cooler high temperature section, confess the high temperature chamotte cooling use of rotary kiln, enter in rotary kiln Sum decomposition stove after gas with foreign flavor and high temperature chamotte heat exchange and obtain sufficient high-temperature process as combustion air.
When cement rotary kiln and incinerator stoppage in transit, start deodoration system, extract after the pernicious gas in cheating is stored up in also disposal of refuse and enter air.
4. steam boiler system
Enter the first via flue gas of high-temperature flue gas from waste incineration outlet of still of steam boiler, steam boiler hot water used is provided by cement clinker production line afterheat generating system, after hot water and the heat exchange of high temperature first via flue gas, evaporation produces the steam of design temperature and pressure, and steam sends into the vapour system of cement clinker production line cogeneration by jet chimney.
5. percolate disposal system
The percolate of also being discharged by garbage storing hole bottom collection reaches Treated sewage reusing requirement after garbage percolation liquid treating system process, and the mud that garbage percolation liquid treating system produces is sent in dore furnace and burned.Another disposal method of percolate by sewage pump percolate is directly extracted and be injected in dore furnace to burn.
Another technical scheme is injected in dore furnace after being mixed with the denitration solution of cement clinker production line denitrating system by sewage pump by percolate, thus reach the water of reduction cement clinker production line denitrating system and the object of reducing agent consumption.
6. cinder and flying dust disposal system
The lime-ash that incinerator is discharged is through cooling and deironing, except the raw material mixing system being sent to cement clinker production line together with the flue gas flying dust collected with steam boiler after non-ferrous metal process, because the chemical composition of cinder and flying dust is close with the clayey raw material chemical composition of producing cement, therefore can clayey raw material in Some substitute cement raw material, raw meal powder is worn into by material pulverizing after cinder and flying dust and cement raw material measure, raw meal powder is through preheater, dore furnace enters in rotary kiln, reach the high temperature of more than 1600 degree at gas temperature under, raw meal powder temperature reaches 1450 degree, high-temperature duration reaches dozens of minutes, the chemical composition in cinder and flying dust (heavy metal element etc. especially wherein) is made to define cement clinker mineral (as taken tricalcium silicate as the alite Alite crystal that main component also contains the solid solution of other metals and nonmetal oxide together with cement slurry, take dicalcium silicate as the belite Belite crystal that main component also contains the solid solution of other metals and nonmetal oxide, take tricalcium aluminate as main component and solid solution containing other metals and nonmetal oxide and be main component with tetra calcium aluminoferrite and the celite Celite mineral etc. of solid solution containing other metals and nonmetal oxide), metallic element can not be there is and leach in these mineral in cement hydration process, phenomenon is discharged in migration, thus there will not be the risk of contaminated environment.
Cinder from refuse incineration also can use as cement mixture, and this cement can must use after Leaching of Heavy Metals pass the test.
7. fuel combustion supporting system
In order to meet drying and the intensification requirement of castable in incinerator, incinerator is provided with fuel ignition oil gun.Due to refuse moisture and hot-restriking die larger, particularly when refuse thermal value is too low, rubbish is difficult to form smooth combustion in incinerator, for this reason, incinerator is provided with coal burner, and its coal dust is provided by the coal dust preparation system of cement clinker production line, and its coal dust amount is controlled by independent coal powder metering scale, even if the coal dust sprayed into can not burn completely in incinerator, meeting burns away in dore furnace along with flue gas enters and burns.
8. bypass system
In domestic waste, one content of Cl element is higher, when the chloride content (comprising the chlorine in cement slurry) be converted in cement slurry reaches more than 0.02%, usual meeting is at rotary kiln, dore furnace, skinning is there is in the preheater of cement clinker burning system and its connecting pipe, caking phenomenon, have impact on the ventilation of cement clinker burning system, thus have impact on the output of clinker, hear rate and product quality, the smoke-box of the present invention between rotary kiln and cement decomposing furnace arranges bypass bleeding point for this reason, can effectively reduce or avoid the skinning of chlorine element after extracting a certain amount of gas by bypass system, the impact of caking on cement clinker burning system, the rate of air sucked in required of its bypass system is determined by chlorinity in chlorinity in rubbish and cement slurry.
The technical scheme of bypass system of the present invention extracts the high-temperature flue gas of rotary kiln smoke-box, mix in a mixer with the cold wind that blower fan provides, enter bypass steam boiler after mist temperature reaches 380 ~ 500, steam boiler discharge waste gas through bag filter purification after and enter air by air-introduced machine.The dust of bypass systematic collection uses as cement mixture.
Beneficial effect of the present invention:
1, the applicable domestic rubbish making full use of incinerator especially fire grate type of furnace incinerator is difficult to the feature sorted, calorific value is low, moisture is high, has greatly simplified process in early stage (as classification, the sorting) work of waste incineration.
2, the hot conditions making full use of more than 850 DEG C of rotary system dore furnace carries out combustion decomposition to the flue gas of incinerator, flue gas reaches more than 4 seconds in the dore furnace time of staying, reach thoroughly by the object of organic matter in garbage decomposition, greatly reduce the formation volume of the nuisances such as dioxin, the national standard requirement of hazardous emission of burning away the refuse lower than incinerator.
3, make full use of the alkaline components such as the calcium oxide in rotary system in raw meal powder, calcium carbonate, the sour gas that waste incineration is produced and material are fully absorbed by raw meal powder and wash, purify, and make SO
2and Cl
-be fixed up Deng to synthesize salt, greatly reduce deleterious acidic gas after waste incineration in flue gas Ji dioxin synthesizes again.
4, high firing temperature and the cement clinker formation condition of rotary system is made full use of, the residue produced after waste incineration and flying dust are participated in feed proportioning, grinding becomes raw material, finally be fired into clinker, toxic heavy metal element in residue and flying dust is solid-solubilized in grog, define silicates mineral, greatly reduce the harm of the Heavy-metal Polluted Environment in rubbish.
5, by adopting the primary air of high-temp waste gas as incinerator of cement clinker production line, the object of the waste gas comprehensive utilization of cement clinker production line is reached.
6, the smoke processing system carried by cement clinker production line is purified the flue gas after waste incineration, dedusting, saves the waste gas subsequent treatment work of complicated refuse incineration and power generation process, and reduces investment cost and operating cost.
7, can ensure to be negative pressure state in storage hole by extracting the inner air in airtight garbage storing hole, effectively prevent the excessive of waste odor gas, this portion gas is admitted in cement clinker cooler simultaneously, and enters in rotary kiln Sum decomposition stove pernicious gas is thoroughly burnt.
8, percolate is through sewage disposal or be sprayed onto cement firing system internal combustion and burn, and has made percolate also obtain harmless treatment.
9, cement clinker production line is all provided with afterheat generating system usually, and afterheat generating system mostly can not oepration at full load, therefore, the part extracting incinerator outlet exhaust enters steam boiler, the steam produced is incorporated to the afterheat generating system of cement kiln, enter steam turbine, make the oepration at full load of cement kiln waste-heat power generation system energy, make refuse burning system economic benefit better.
10, due to content of Cl element in rubbish, one is higher, cement kiln synergic processing garbage system needs to set up bypass system, and the gas temperature that bypass extracts reaches more than 1000 degree, after increasing cold wind cooling, adopt steam boiler to produce steam, reach the object of used heat comprehensive utilization.
Accompanying drawing explanation
Fig. 1 is system flow chart of the present invention.This system contains local flow chart and their mutual conspiracy relation of refuse burning system general flow chart and cement clinker burning system.
Fig. 2 is band bypass system cement kiln synergic processing house refuse flow chart.This system includes and extracts part high-temperature gas as bypass from the smoke-box between rotary kiln and dore furnace, to reduce in rubbish the elements such as chlorine to the impact of cement clinker production line.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, the invention provides a kind of system of cement kiln synergic processing house refuse, comprise incinerator 1, cement rotary kiln 2, dore furnace 3, garbage storing hole 4, garbage percolation liquid treating system 5, grab bucket 6, driving 7, feed system 8, deodoration system 9, peculiar smell blower fan 10, air-introduced machine 13, primary air fan 14, steam boiler 17, high-temperature blower 20, cooling blower 24, cooler 25;
In Fig. 1, rotary kiln 2, dore furnace 3, cooler 25, cooling blower 24 and connection thereof etc. all belong to cement clinker production line system, in addition all belong to refuse burning system.Refuse burning system is connected by mixed flue gas 22 pipeline and from high-temperature hot air 12 pipeline of cement clinker burning system with cement clinker burning system, the water inlet hot water 18 of steam boiler 17 is connected with the afterheat generating system of cement clinker production line with steam 19 pipeline simultaneously, the lime-ash 23 of burning away the refuse of incinerator 1 sends into the raw material mixing system of cement clinker production line, the percolate in garbage storing hole 4 can be sent in cement decomposing furnace 3 by pump, achieves the object of cement kiln synergic processing house refuse.
Present invention comprises rubbish storage system, waste incineration and smoke processing system, combustion-aid air system, gas with foreign flavor treatment system, steam boiler system, garbage percolation liquid treating system, cinder and flying dust treating system, fuel combustion supporting system, bypass System Subsystem.
House refuse through cram packer be transported to airtight garbage storing hole 4, by grab bucket 6 and driving crane 7 rubbish is fed in incinerator 1 by feed system 8.Be that the high-temperature hot air 12 of 150 ~ 250 degree blasts in incinerator 1 by several primary air fans 14 of high-temperature blower 13 and incinerator 1 from cement clinker cooler temperature, for drying garbage with burn.Rubbish in incinerator 1 through super-dry, burn, burn several process, flue gas after burning is divided into two-way, i.e. first via flue gas 15 and the second road flue gas 16, wherein first via flue gas 15 enters steam boiler 17, mixed with the second road flue gas 16 going out incinerator 1 by the flue gas 21 going out steam boiler 17 by high-temperature blower 20, its mixed flue gas 22 enters in dore furnace 3 and continues to burn and purification.The hot water 18 entering steam boiler 17 is provided by the afterheat generating system of cement clinker production line, the steam 19 going out steam boiler 17 passes into the vapour system of cement clinker production line cogeneration, and its quantity of steam meets the requirement of cement clinker production line afterheat generating system oepration at full load.The gas with foreign flavor that the rubbish stored in airtight garbage storing hole 4 gives out is extracted by peculiar smell blower fan 10 and delivers to the high temperature section cooling blower 24 of cement clinker cooler 25, blasted in cooler 25 by cooling blower 24 again and carry out sufficient heat exchange with the high temperature chamotte going out rotary kiln 2, enter rotary kiln 2 Sum decomposition stove 3 as secondary and three combustion airs together with other high-temperature gas of gas with foreign flavor after heat exchange and cooler, the harmful substance in gas with foreign flavor obtains burns completely.The flying dust of the cinder 23 and steam boiler 17 discharge that go out incinerator 1 is through deironing, except the raw material mixing system sending into cement clinker production line after non-ferrous metal process, the chemical composition of the flying dust of discharging due to cinder 23 and steam boiler 17 and the clayey raw material chemical composition of cement raw material close, therefore cinder 23 and steam boiler 17 flying dust of discharging can Some substitute cement clayey raw material, the flying dust that cinder 23 and steam boiler 17 are discharged is all along with cement slurry enters cement firing system, under the flame calcining of clinkering zone in rotary kiln 2 more than 1600 degree, temperature of charge reaches 1450 degree, compound in harmful components in cinder 23 and flue gas flying dust and heavy metal element and cement slurry to define in clinker main mine material (as Alite mineral, Belite mineral, Celite mineral and tricalcium aluminate), these heavy metal element and harmful elements etc. are because being solid-solubilized in cement minerals, therefore in cement hydration process, heavy metal can not leach, move and contaminated environment.Percolate in garbage storing hole 4 reaches Treated sewage reusing standard after collecting after garbage percolation liquid treating system 5 processes, its mud of discharging burns by being pumped in dore furnace 3, or percolate directly sprays into burning in incinerator or cement decomposing furnace 3 by pump, or percolate to be mixed with the reductant solution of cement clinker production line denitrating system by pump together with spray in dore furnace 3 and reach the out of stock object of cement clinker production line, save water and the reducing agent consumption of cement clinker production line denitrating system.During cement rotary kiln 2 and incinerator 1 are stopped transport, after the gas with foreign flavor in garbage storing hole 4 is processed by Peculiar Odor Treatment System 9, enter air.
Because the harmful components such as one chlorine element in rubbish are higher, in order to ensure that cement clinker production line normally runs, need to arrange bypass system, as shown in Figure 2.Bypass bleed off passage is arranged on the smoke-box place that rotary kiln 2 is connected with dore furnace 3, the high-temperature gas that the portion temperature that extraction is discharged by rotary kiln 2 is more than 1000 degree mixes in blender 26 with the cold wind that the second cooling blower 27 provides, mixed temperature is 380 ~ 500 degree, mist is down to less than 200 degree after the second steam boiler 28 heat exchange, again by bag collector 29 purifying and dedusting, and enter air by exhaust blower 30.Second steam boiler 28, second hot water 31 used is from the afterheat generating system of cement clinker production line, and the second steam 32 that the second steam boiler 28 produces delivers to the vapour system of cement clinker production line cogeneration.
Incinerator and cement clinker production line combine by the system of a kind of cement kiln synergic processing house refuse disclosed by the invention preferably, utilize the high temperature of cement firing system, high stability, high concentration basic material, the series of characteristics such as long residence time, comparatively improve ground by dioxin harmful components in flue gas of refuse burning, harmful element (as heavy metal element) in cinder and flying dust, percolate, gas with foreign flavor in garbage storing hole all realizes harmlessness disposing, on the requirement that the impact of environment can be up to state standards completely, really achieve house refuse " innoxious, subtract appearanceization, resource, environmental protection " object disposed.Flow process of the present invention is simple, easy and simple to handle, stable, it is little to invest, and is a kind of ideal Disposal of Domestic system.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (5)
1. the system of cement kiln synergic processing house refuse, comprises refuse burning system, it is characterized in that: also comprise cement clinker production line system;
Cement clinker production line system comprises rotary kiln (2), dore furnace (3), cooling blower (24), cooler (25), afterheat generating system;
Refuse burning system comprises incinerator (1), garbage storing hole (4), garbage percolation liquid treating system (5), grab bucket (6), driving (7), feed system (8), deodoration system (9), peculiar smell blower fan (10), air-introduced machine (13), primary air fan (14), high-temperature blower (20);
Waste incineration and smoke processing system: the rubbish in garbage storing hole (4) is burned by feed system (8) feeding incinerator (1) by grab bucket (6) and driving (7); The flue gas that incinerator (1) is discharged is divided into two-way, i.e. first via flue gas (15) and the second road flue gas (16), wherein first via flue gas (15) enters steam boiler (17), the flue gas (21) going out steam boiler (17) is extracted by high-temperature blower (20) and becomes mixed flue gas (22) after mixing with the second road flue gas (16) going out incinerator (1), and mixed flue gas (22) passes in dore furnace (3) and burns further in high temperature environments;
Combustion-aid air system: the high-temperature hot air (12) from cement clinker production line system blasts in incinerator (1), for the drying garbage in incinerator (1) and burning by air-introduced machine (13) and by the primary air fan (14) of incinerator (1);
Gas with foreign flavor treatment system: the air containing smell substance in garbage storing hole (4) is extracted by peculiar smell blower fan (10) and sends into for clinker cooling in cooler (25) through cement clinker cooler (25) high temperature section cooling blower (24), through with the high temperature chamotte heat exchange going out rotary kiln (2) after enter that rotary kiln (2) Sum decomposition stove (3) is middle to be burned; When cement rotary kiln and incinerator are stopped transport, deodoration system (9) extracts and the gas with foreign flavor in (4) is cheated in disposal of refuse storage;
Steam boiler system: the hot water (18) from cement clinker production line afterheat generating system enters steam boiler (17), after high-temperature flue gas (15) heat exchange, evaporation forms the steam (19) of design temperature and pressure, and steam (19) sends into the afterheat generating system of cement clinker production line by jet chimney;
Percolate disposal system: the percolate of also being discharged by garbage storing hole (4) bottom collection reaches Treated sewage reusing requirement after garbage percolation liquid treating system (5) processes, the mud that garbage percolation liquid treating system (5) produces sends into the middle burning of dore furnace (3); Or the percolate of discharging (4) bottom will be cheated by garbage storing by sewage pump and extract, then after mix with the denitration solution of cement clinker production line denitrating system, be injected to that dore furnace (3) is middle to be burned;
Cinder and flying dust disposal system: the lime-ash (23) that incinerator (1) is discharged is sent to the raw material mixing system of cement producing line together with the flue gas flying dust that deironing is collected with steam boiler (17) after non-ferrous metal, uses as cement raw material;
Incinerator (1) is provided with fuel ignition oil gun and coal burner, and its coal dust is provided by the coal dust preparation system of cement clinker production line.
2. the system of cement kiln synergic processing house refuse according to claim 1, is characterized in that: incinerator (1) is fire grate type of furnace incinerator or fluidized bed type incinerator.
3. the system of cement kiln synergic processing house refuse according to claim 1, is characterized in that: provided from quality coal in cement kiln systems high-temperature hot air (12) by the kiln hood cooler (25) of cement clinker burning system or provided by the part tertiary air of cement clinker burning system.
4. the system of cement kiln synergic processing house refuse according to claim 1, it is characterized in that: mixed flue gas (22) enters the cone of dore furnace (3) bottom through pipeline or enters in the tertiary-air pipe of cement clinker burning system through pipeline, enters the cone of dore furnace (3) bottom together with the tertiary air from kiln hood after mixing.
5. the system of cement kiln synergic processing house refuse according to claim 1, it is characterized in that: the smoke-box place be connected with dore furnace (3) at rotary kiln (2) is provided with bypass system, its bypass system comprises the second cooling blower (27), blender (26), the second steam boiler (28), bag collector (29), exhaust blower (30); The portion temperature that extraction is discharged by rotary kiln (2) is that the high-temperature gas of more than 1000 degree mixes in blender (26) with the cold wind that the second cooling blower (27) provides, mixed temperature is 380 ~ 500 degree, mist is down to less than 200 degree after the second steam boiler (28) heat exchange, again by bag collector (29) purifying and dedusting, and enter air by exhaust blower (30); Second steam boiler (28) the second hot water (31) used is from the afterheat generating system of cement clinker production line, and the second steam (32) that the second steam boiler (28) produces delivers to cement clinker production line afterheat generating system.
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| CN104438296A (en) * | 2014-12-05 | 2015-03-25 | 袁亮国 | Dry-process rotary cement kiln cooperative household garbage treatment system and treatment method |
| CN106122982A (en) * | 2016-04-20 | 2016-11-16 | 浙江环立环保科技有限公司 | A kind of cement kiln synergic processing hazardous waste exhaust treatment system |
| CN106966618A (en) * | 2017-02-27 | 2017-07-21 | 西南科技大学 | A kind of method of cement kiln synergic processing house refuse |
| CN107459271A (en) * | 2017-07-20 | 2017-12-12 | 刘振海 | Cement kiln synergic processing domestic waste and sludge technology |
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