CN102705837B - System and method for collaborative garbage disposal of cement clinker production line - Google Patents
System and method for collaborative garbage disposal of cement clinker production line Download PDFInfo
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- CN102705837B CN102705837B CN201210233389.5A CN201210233389A CN102705837B CN 102705837 B CN102705837 B CN 102705837B CN 201210233389 A CN201210233389 A CN 201210233389A CN 102705837 B CN102705837 B CN 102705837B
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention provides a system and a method for collaborative garbage disposal of a cement clinker production line. The system comprises a garbage incinerator (1), a flue gas pipeline (2), a decomposing furnace (3), a third air duct (4), a rotary kiln (5), a grate cooler (6), a warm air pipeline (7), an air supply pipeline (8) and an oxygen enrichment system (9). The oxygen enrichment system is arranged on the air supply pipeline of the garbage incinerator, an oxygen enrichment pipeline valve (10) is arranged between the air supply pipeline and the oxygen enrichment system, and a warm air pipeline valve (11) is arranged between the warm air pipeline and the air supply pipeline. The method includes that garbage is fed in the garbage incinerator, oxygen-containing hot gas and oxygen-enriched gas are mixed to be supplied to the garbage incinerator, oxygen content and flow of the oxygen-enriched gas are regulated through the oxygen enrichment pipeline valve and the warm air pipeline valve, the garbage is dried, burned and burned out through the garbage incinerator, combustion flue gas enters the decomposing furnace through the flue gas pipeline and then is disposed by a flue gas purification system, and garbage residues after combustion enter the rotary kiln or a stock dump directly.
Description
Technical field
The present invention relates to a kind of refuse disposal system and method, particularly relate to a kind of system and method for method disposal of refuse of oxygen-enriched combusting, handled rubbish can be municipal refuse or industrial refuse.
Background technology
Municipal refuse and industrial refuse source complexity, form also very complicated, be wherein no lack of a large amount of poisonous and harmful substance.Multiple way was once adopted to the process of rubbish, as landfill method, composting process, heat treating process, worm method, rubbish feeding, bacterial digestion, water ballast method, microwave treatment method or classification is reclaimed, comprehensive utilization etc.Heat treating process be process the most thorough, a kind of processing method that decrement ratio is the highest, mainly use burning method at present, also be the waste disposal method that current countries in the world generally adopt, have that treating capacity is large, to subtract capacitive good and have the feature of energy recovery, mainly contain layer combustion technology (incinerator burning etc.), fluidized bed combustion (gasification furnace burning etc.), rotary combustion technology (rotary kiln incineration etc.).Incinerator incineration technology is applicable to the rubbish that moisture is higher, calorific value is low, burns away the refuse comparatively thorough, but processing procedure need combustion-supporting, easily produce dioxin; Fluidized bed type incineration technology has the features such as high, the suitable low moisture high rubbish of calorific value of calorific intensity, stable, simple structure, but there is the shortcomings such as high into stove rubbish dimensional requirement, subsequent treatment is complicated, investment is high; Technology using rotary kiln have stable, seal the features such as tight, but there is shortcomings such as needing auxiliary fuel, subsequent treatment complicated.These technology have application at refuse-burning plant and cement clinker production line cooperative disposal process, but the problem such as it is low all to there is efficiency of combustion, needs postcombustion, and the actual growing amount of dioxin is larger.
In cement clinker production line cooperative disposal rubbish process, incinerator exists and clinker production line all needs sufficient oxygen for combustion process, and the two exists the problem fighting for hot-air; When refuse moisture is high, when calorific value is low, the ignition temperature in garbage incinerating system and flue-gas temperature are difficult to improve, and do not address these problems, and are just difficult to the Effec-tive Function ensureing garbage incinerating system.And oxygen-enriched combusting significantly can save combustion air, improve combustion flame temperature and efficiency of combustion, and then reduce the generation of the toxicants such as dioxin.
Summary of the invention
One more efficient cement clinker production line cooperative disposal garbage system and method is the invention provides for above problem.
A kind of cement clinker production line cooperative disposal garbage system is the invention provides in order to overcome the above problems, comprise incinerator, flue, dore furnace, tertiary-air pipe, rotary kiln, grate-cooler, hot air duct, air supply line, it is characterized in that: also comprise oxygen enrichment system, oxygen enrichment system is arranged on the air supply line of incinerator, and oxygen enrichment pipeline valve is provided with between air supply line and oxygen enrichment pipeline, between hot air duct and air supply line, be provided with hot air duct valve.
Gas analyzer is provided with between air supply line and incinerator.
Air-introduced machine is provided with between air supply line and incinerator.
Air supply line is provided with exhaust piping, between exhaust piping and air supply line, is provided with exhaust piping valve.
A kind of cement clinker production line cooperative disposal rubbish method, is characterized in that: comprise the following steps:
The first step: be fed into incinerator by through the domestic waste of pre-treatment or industrial refuse; The hot blast branch come by cement clinker production line firing system provides the mist be mixed to form containing oxygen hot gas and the oxygen rich gas from oxygen enrichment system to be supplied to incinerator by air supply line, and regulates oxygen rich gas oxygen content and flow by the valve of oxygen enrichment pipeline and the valve of hot air duct;
Second step: rubbish is through incinerator drying, burning, after-flame, combustion product gases is entered in the dore furnace of cement clinker production line by flue and burns away, in dore furnace, organic matter is thoroughly decomposed, then through the flue gas purification system process that cement clinker production line carries, the rubbish residue after burning directly enters the rotary kiln of cement clinker production line or enters stockyard.
Oxygen rich gas described in the first step can pass into bottom grate-cooler, after the clinker layer of grate-cooler, then extract containing oxygen hot gas from the anterior high temperature section of grate-cooler, be supplied to air supply line by oxygen enrichment pipeline, resupply incinerator, the oxygen content extracting hot blast is controlled by valve.
Air supply line described in the first step is provided with gas analyzer, and described mist detects mixed gas composition by gas analyzer, to control oxygen content and the temperature of the mist blasting incinerator.
The oxygen rich gas of described oxygen enrichment system is mixed in hot air duct, this hot air duct containing oxygen hot gas from the tertiary air of firing system, provided by tertiary-air pipe.
Air supply line described in the first step can extract waste gas by exhaust piping from the chimney of waste treatment system, the exhausted air quantity that exhaust piping Valve controlling extracts, the oxygen rich gas that the waste gas extracted comes with oxygen enrichment pipeline mixes, add the hot gas of part from firing system again, together enters incinerator after three strands of gas and vapor permeation.
Oxygen rich gas described in the first step, its oxygen content is 21% to 100%.
Beneficial effect:
The present invention reduces incinerator combustion air consumption, reduces discharge amount of exhaust gas.
The present invention improves waste incineration temperature, reduces harmful substance and generates.
The present invention improves waste incineration exhaust gas temperature, reduces fume emission, reduces waste incineration to the impact of clinker production system.
The residue produced after waste incineration of the present invention directly can enter rotary system, under high temperature firing temperature, participate in grog firing system, is solid-solubilized in grog, is finally fired into clinker by the harmful heavy metal in residue, thoroughly eliminates the Heavy Metal Pollution in rubbish.
Present system waste gas circulation utilizes, and a part of heat energy is utilized again, and system thermal efficiency improves.
Accompanying drawing explanation
Fig. 1 is system flow chart of the present invention;
Fig. 2 is that hot blast of the present invention is from the system flow chart returning system chimney;
Fig. 3 is the system flow chart that oxygen rich gas of the present invention passes into bottom grate-cooler.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 to Figure 3, cement clinker production line cooperative disposal garbage system
Comprise incinerator 1, flue 2, (cement clinker production line) dore furnace 3, tertiary-air pipe 4, rotary kiln 5, grate-cooler 6, hot air duct 7, air supply line 8, also comprise oxygen enrichment system 9, oxygen enrichment system 9 is arranged on the air supply line 8 of incinerator, and oxygen enrichment pipeline valve 10 is provided with between air supply line 8 and oxygen enrichment system 9, between hot air duct 7 and air supply line 8, be provided with hot air duct valve 11, the degree of system oxygen enrichment is regulated by oxygen enrichment pipeline valve 10 and hot air duct valve 11.
As the further improvement of native system, can also arrange gas analyzer 12 between air supply line 8 and incinerator 1, the gas oxygen content entering incinerator 1 is detected by gas analyzer 12, controls with valve 10 and valve 11.
As the further improvement of native system, can also arrange air-introduced machine 14 between air supply line 8 and incinerator 1, mist can be blasted incinerator 1 by air-introduced machine 14.
As the further improvement of native system, air supply line 8 can also arrange exhaust piping 15, exhaust piping valve 13 is set between exhaust piping 15 and air supply line 8.
Cement clinker production line cooperative disposal garbage system
,comprise the following steps:
The first step: the rubbish (domestic waste or industrial refuse) through pre-treatment is fed into incinerator 1; Mist (provide from the hot blast branch that cement clinker production line firing system comes and mix with the oxygen rich gas from oxygen enrichment system containing oxygen hot gas) is supplied to incinerator 1 by air supply line 8, for the waste incineration of incinerator 1 provides burning hot gas; And regulate oxygen rich gas oxygen content and flow by the valve 10 of oxygen enrichment pipeline and the valve 11 of hot air duct;
Second step: rubbish is through incinerator 1 drying, burning, after-flame, ignition temperature is high 100 ~ 150 DEG C compared with the incinerator without oxygen enrichment technology, the dore furnace 3 li that combustion product gases enters cement clinker production line by flue 2 burns away, in dore furnace 3, organic matter is thoroughly decomposed, then through the flue gas purification system process that cement clinker production line carries, the rubbish residue after burning directly enters the rotary kiln 5 of cement clinker production line or enters stockyard.
This refuse disposal system is on the basis of cement clinker production line, utilize oxygen-enriched combustion technology, can more up hill and dale by waste incineration, decomposition than general treatment system, utilize the efficiency of rubbish self calorific value higher, more thorough to clearing up of noxious material, while disposal of refuse, do not affect the normal operation of cement clinker production line.
Oxygen rich gas described in the first step, its oxygen content is preferably 21% to 100%, and concrete content adjusts according to the Actual combustion situation of incinerator.
One as this method is improved, oxygen rich gas described in the first step can pass into bottom grate-cooler 6, after the clinker layer of grate-cooler 6, extract containing oxygen hot gas from the anterior high temperature section of grate-cooler 6 again, air supply line 8 is supplied to by oxygen enrichment system 9, resupply incinerator 1, the oxygen content extracting hot blast is controlled by valve 10, sees Fig. 3.
One as this method is improved, and the air supply line 8 described in the first step is provided with gas analyzer 12, and described mist detects mixed gas composition by gas analyzer 12, to control oxygen content and the temperature of the mist blasting incinerator 1.
One as this method is improved, and the oxygen rich gas from oxygen enrichment system is mixed in hot air duct, this hot air duct containing oxygen hot gas from the tertiary air of firing system, provided by tertiary-air pipe, see Fig. 1, Fig. 2.Tertiary air is the hot-air of air and the supply kiln tail fuel combustion of grog after grate-cooler heat exchange, and oxygen content is 21%, and after adding oxygen rich gas, mist oxygen content improves further, and temperature raises, and is beneficial to the burning of rubbish in incinerator.
One as this method is improved, air supply line described in the first step can extract waste gas by exhaust piping 15 from the chimney of waste treatment system, exhaust piping valve 13 controls the exhausted air quantity extracted, the waste gas extracted mixes with the oxygen rich gas of oxygen enrichment system 9, add the hot gas of part from firing system again, incinerator 1 is together entered after three strands of gas and vapor permeation, while playing oxygen-enriched combusting effect, reach again flue gas recirculation and utilize, while saving heat energy, reduce the object of toxic emission.
The present invention is in the technology of burning away the refuse and new dry cement production technology basis of maturation, utilize oxygen-enriched combustion technology, the features of abundant excavation three kinds of technology, the efficiency making incinerator and clinker produce each system all reaches best, make garbage disposal more thorough, the discharge of pollutant, noxious material is more thorough, is a kind of more general technology of garbage disposal more preferably refuse disposal 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. a cement clinker production line cooperative disposal rubbish method, is characterized in that: comprise the following steps:
The first step: be fed into incinerator (1) by through the domestic waste of pre-treatment or industrial refuse; The hot blast branch come by cement clinker production line firing system provides the mist be mixed to form containing oxygen hot gas and the oxygen rich gas from oxygen enrichment system to be supplied to incinerator (1) by air supply line (8), and the valve (11) passing through oxygen enrichment pipeline valve (10) and hot air duct regulates oxygen content and the flow of mist;
Second step: rubbish is through incinerator (1) drying, burning, after-flame, combustion product gases enters by flue (2) that the dore furnace (3) of cement clinker production line is inner to burn away, organic matter is thoroughly decomposed dore furnace (3) is inner, then through the flue gas purification system process that cement clinker production line carries, the rubbish residue after burning directly enters the rotary kiln (5) of cement clinker production line or enters stockyard.
2. cement clinker production line cooperative disposal rubbish method according to claim 1, it is characterized in that: the oxygen rich gas described in the first step can pass into from grate-cooler (6) bottom, after the clinker layer of grate-cooler (6), oxygen enrichment hot gas is extracted again from the anterior high temperature section of grate-cooler (6), air supply line (8) is supplied to by oxygen enrichment pipeline (9), resupply incinerator (1), the oxygen-enriched content extracting oxygen enrichment hot gas is controlled by oxygen enrichment pipeline valve (10).
3. cement clinker production line cooperative disposal rubbish method according to claim 1, it is characterized in that: the air supply line (8) described in the first step is provided with gas analyzer (12), described mist detects mixed gas composition, to control oxygen content and the temperature of the mist blasting incinerator (1) by gas analyzer (12).
4. cement clinker production line cooperative disposal rubbish method according to claim 1, it is characterized in that: the oxygen rich gas of described oxygen enrichment system is mixed in the hot air duct (7) for carrying containing oxygen hot gas, this hot air duct containing oxygen hot gas from the tertiary air of firing system, provided by tertiary-air pipe (4).
5. the cement clinker production line cooperative disposal rubbish method according to claims 1 to 3 any one, it is characterized in that: the air supply line described in the first step can pass through exhaust piping (15) and extract waste gas from the chimney of exhaust treatment system, exhaust piping valve (13) controls the exhausted air quantity extracted, the oxygen rich gas that the waste gas extracted, oxygen enrichment system come and part from firing system containing oxygen hot gas, together enter incinerator (1) after three strands of gas and vapor permeation.
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| CN201210233389.5A CN102705837B (en) | 2012-07-06 | 2012-07-06 | System and method for collaborative garbage disposal of cement clinker production line |
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| CN201210233389.5A CN102705837B (en) | 2012-07-06 | 2012-07-06 | System and method for collaborative garbage disposal of cement clinker production line |
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| CN102705837B true CN102705837B (en) | 2015-04-01 |
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| CN102980410B (en) * | 2012-11-20 | 2014-12-10 | 高玉宗 | Grate cooler type garbage treatment device and garbage treatment method |
| CN103351106B (en) * | 2013-06-27 | 2015-08-05 | 内蒙古蒙西水泥股份有限公司 | Energy-saving environment-friendly cement clinker preparation system |
| CN104100979B (en) * | 2014-06-30 | 2015-10-28 | 华中科技大学 | A kind of refuse incineration grate furnace oxygen-enriched combusting remodeling method and device |
| CN105032884B (en) * | 2015-04-03 | 2017-04-05 | 坚构（北京）建筑技术有限公司 | Cement rotary kiln collaboration processes house refuse and energy comprehensive utilization system and method |
| CN104807017B (en) * | 2015-05-08 | 2017-05-17 | 北京金隅北水环保科技有限公司 | System for treating industrial waste in combination with thermal desorption and use method |
| CN104815843B (en) * | 2015-05-08 | 2017-05-17 | 北京金隅北水环保科技有限公司 | System of treating polluted soil through thermal desorption and use method |
| CN107676796A (en) * | 2017-09-21 | 2018-02-09 | 北京汉能清源科技有限公司 | A kind of oxygen-enriched burning of dewatered sludge and cement kiln synergic processing device of sludge and method |
| CN108361720A (en) * | 2018-04-26 | 2018-08-03 | 吴征威 | A kind of intelligentized plasma garbage combustion device |
| CN108947285A (en) * | 2018-08-03 | 2018-12-07 | 吴超 | The new method of the spiral flow fluidized circulation Rapid Heating-up Burning of Cement Clinker of bulky grain |
| CN109611853A (en) * | 2018-12-19 | 2019-04-12 | 安徽节源环保科技有限公司 | A kind of method of dry-process cement rotary kiln collaboration processing house refuse |
| CN109539278A (en) * | 2018-12-21 | 2019-03-29 | 北京金隅北水环保科技有限公司 | A kind of burning processing system and incineration treatment method |
| CN109970374A (en) * | 2019-03-22 | 2019-07-05 | 北京科太亚洲生态科技股份有限公司 | A kind of oxygen supplementing device and oxygen replenishing method increasing rotary kiln waste treatment amount |
| CN115681993B (en) * | 2022-11-12 | 2023-08-04 | 江苏大鸿环保设备有限公司 | High-temperature combustion-supporting air distribution system of hazardous waste incinerator and application method thereof |
| CN118482569B (en) * | 2024-07-12 | 2024-10-15 | 西南科技大学 | A rotary kiln pure oxygen combustion clinker calcining production equipment and production method |
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Address after: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhongcai International Intelligent Technology Co.,Ltd. Address before: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee before: NANJING KISEN INTERNATIONAL ENGINEERING Co.,Ltd. |