CN102705837A - 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 PDF

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Publication number
CN102705837A
CN102705837A CN2012102333895A CN201210233389A CN102705837A CN 102705837 A CN102705837 A CN 102705837A CN 2012102333895 A CN2012102333895 A CN 2012102333895A CN 201210233389 A CN201210233389 A CN 201210233389A CN 102705837 A CN102705837 A CN 102705837A
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China
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oxygen
production line
incinerator
air supply
gas
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CN2012102333895A
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Chinese (zh)
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CN102705837B (en
Inventor
陈艳征
康宇
冯治国
吴荫尹
张军
李安平
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南京凯盛国际工程有限公司
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    • Y02E20/344
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121Energy efficiency measures, e.g. improving or optimising the production methods

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

Clinker production line cooperative disposal garbage system and method

Technical field

The present invention relates to a kind of refuse disposal system and method, relate in particular to a kind of system and method for the method disposal of refuse with oxygen-enriched combusting, handled rubbish can be municipal refuse or industrial refuse.

Background technology

Municipal refuse and industrial refuse source are complicated, form also very complicacy, wherein are no lack of a large amount of poisonous and harmful substances.Multiple way was once adopted in processing to rubbish, like feeding, bacterial digestion, water ballast method, the microwave treatment method of landfill method, composting process, heat treating process, worm method, rubbish or classification is reclaimed, comprehensive utilization or the like.Heat treating process be handle the most thorough; A kind of processing method that the decrement ratio is the highest; Main use is burning method at present; Also be the waste disposal method that generally adopt present countries in the world, have that treating capacity is big, to subtract capacitive good and the characteristics of energy recovery are arranged, mainly contain layer combustion technology (incinerator burning etc.), fluidized bed combustion (gasification furnace burning etc.), rotary combustion technological (rotary kiln incineration etc.).The incinerator incineration technology is fit to the rubbish that moisture is higher, calorific value is low, and it is comparatively thorough to burn away the refuse, but processing procedure need combustion-supportingly, easy produce dioxin; The fluidized bed type incineration technology has characteristics such as calorific intensity height, the low moisture high rubbish of suitable calorific value, stable, simple structure, and stove rubbish dimensional requirement is high, subsequent treatment is complicated, invest high shortcoming but exist to go into; Characteristics such as that the rotary kiln incineration technology has is stable, sealing is tight, but existence needs shortcomings such as auxiliary fuel, subsequent treatment complicacy.Problems such as these technology all have application at refuse-burning plant and clinker production line cooperative disposal process, but all exist efficiency of combustion low, need postcombustion, and the actual growing amount of dioxin is bigger.

In clinker production line cooperative disposal rubbish process, incinerator exists and clinker production line all needs sufficient oxygen to be used for combustion process, and the problem of hot-air is fought in the two existence; When the refuse moisture height, when calorific value hanged down, ignition temperature in the garbage incinerating system and flue-gas temperature were difficult to improve, and did not address these problems, and just were difficult to the efficient operation of assurance garbage incinerating system.And oxygen-enriched combusting can significantly be saved combustion air, improves combustion flame temperature and efficiency of combustion, and then reduces the generation of toxicants such as dioxin.

Summary of the invention

The invention provides a kind of production line of clinker more efficiently cooperative disposal garbage system and method to above problem.

The invention provides a kind of clinker production line cooperative disposal garbage system in order to overcome the above problems; Comprise incinerator, flue, dore furnace, tertiary-air pipe, rotary kiln, cooling machine, 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 between air supply line and oxygen enrichment pipeline, is provided with the oxygen enrichment pipeline valve, between hot air duct and air supply line, is provided with the hot air duct valve.

Between air supply line and incinerator, be provided with gas analyzer.

Between air supply line and incinerator, be provided with air-introduced machine.

On air supply line, be provided with exhaust piping, between exhaust piping and air supply line, be provided with the exhaust piping valve.

A kind of clinker production line cooperative disposal rubbish method is characterized in that: may further comprise the steps:

The first step: the domestic waste or the industrial refuse that will pass through pre-treatment feed incinerator; The hot blast branch that is come by clinker production line firing system provides and contains oxygen hot gas and mix the mist that forms with oxygen rich gas from oxygen enrichment system and offer incinerator through air supply line, and regulates oxygen rich gas oxygen content and flow through the valve of oxygen enrichment pipeline and the valve of hot air duct;

Second step: rubbish is through incinerator drying, burning, after-flame; Burn away in the dore furnace of combustion product gases through flue entering clinker production line; In dore furnace, organic matter is thoroughly decomposed; The flue gas purification system that carries through the clinker production line is then handled, and the rubbish residue after the burning directly gets into the rotary kiln of clinker production line or gets into the stockyard.

The described oxygen rich gas of the first step can feed from the cooling motor spindle; Behind the grog layer through the cooling machine, contain oxygen hot gas from the anterior high temperature section extraction of cooling machine again, offer air supply line by the oxygen enrichment pipeline; Resupply incinerator, extract the oxygen content of hot blast and control through valve.

The described air supply line of the first step is provided with gas analyzer, and described mist detects mixed gas composition by gas analyzer, blasts the oxygen content and the temperature of the mist of incinerator with control.

The oxygen rich gas of described oxygen enrichment system is sneaked in the hot air duct, this hot air duct contain the tertiary air of oxygen hot gas from firing system, provide through tertiary-air pipe.

The described air supply line of the first step can be through the chimney extraction waste gas of exhaust piping from the waste treatment system; The exhausted air quantity that the control of exhaust piping valve is extracted; The waste gas that extracts mixes, adds the hot gas of part from firing system with the oxygen rich gas that the oxygen enrichment pipeline comes, and together gets into incinerator after three strands of gases mix.

The described oxygen rich gas of the first step, its oxygen content are 21% to 100%.

Beneficial effect:

The present invention reduces incinerator combustion air consumption, reduces discharge amount of exhaust gas.

The present invention improves the waste incineration temperature, reduces harmful substance and generates.

The present invention improves the waste incineration exhaust gas temperature, reduces fume emission, reduces the influence of waste incineration to the clinker production system.

The residue that produces after the waste incineration of the present invention can directly get into rotary system, under the high temperature firing temperature, participates in grog and forms, and the harmful heavy metal in the residue is solid-solubilized in the grog, is fired into clinker at last, thoroughly eliminates the heavy metal harm in the rubbish.

System of the present invention waste gas circulation is utilized, and a part of heat energy is utilized once more, and system thermal efficiency improves.

Description of drawings

Fig. 1 is a system flow chart of the present invention;

Fig. 2 is that hot blast of the present invention is from the system flow chart that returns system's chimney;

Fig. 3 is the system flow chart that oxygen rich gas of the present invention feeds from the cooling motor spindle.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done further description.

It is extremely shown in Figure 3 like Fig. 1, Clinker production line cooperative disposal garbage systemComprise incinerator 1, flue 2, (clinker production line) dore furnace 3, tertiary-air pipe 4, rotary kiln 5, cooling machine 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 between air supply line 8 and oxygen enrichment system 9, be provided with oxygen enrichment pipeline valve 10; Between hot air duct 7 and air supply line 8, be provided with hot air duct valve 11, the degree of system's oxygen enrichment is regulated by oxygen enrichment pipeline valve 10 and hot air duct valve 11.

As the further improvement of native system, between air supply line 8 and incinerator 1, gas analyzer 12 can also be set, the gas oxygen content of going into incinerator 1 is detected by gas analyzer 12, with valve 10 and valve 11 controls.

As the further improvement of native system, between air supply line 8 and incinerator 1, air-introduced machine 14 can also be set, air-introduced machine 14 can blast incinerator 1 with mist.

Further improvement as native system can also be provided with exhaust piping 15 on air supply line 8, between exhaust piping 15 and air supply line 8, exhaust piping valve 13 is set.

Clinker production line cooperative disposal rubbish method,May further comprise the steps:

The first step: the rubbish (domestic waste or industrial refuse) that will pass through pre-treatment feeds incinerator 1; Mist (provide contain oxygen hot gas and mix with oxygen rich gas from oxygen enrichment system from the hot blast branch that clinker production line firing system comes) offers incinerator 1 through air supply line 8, for the waste incineration of incinerator 1 provides burning hot gas; And the valve 11 of valve through the oxygen enrichment pipeline 10 and hot air duct is regulated oxygen rich gas oxygen content and flow;

Second step: rubbish is through incinerator 1 drying, burning, after-flame; The incinerator that ignition temperature does not have oxygen enrichment technology is high 100 ~ 150 ℃; Combustion product gases burns away for 3 li through the dore furnace that flue 2 gets into the clinker production line; 3 li organic matter is thoroughly decomposed at dore furnace, the flue gas purification system that carries through the clinker production line is then handled, and the rubbish residue after the burning directly gets into the rotary kiln 5 of clinker production line or gets into the stockyard.

This refuse disposal system is on the basis of clinker production line; Utilize oxygen-enriched combustion technology; Can be than general treatment system more up hill and dale with waste incineration, decomposition; Utilize the efficient of rubbish self calorific value higher, more thorough to clearing up of noxious material, in disposal of refuse, do not influence the normal operation of clinker production line.

The described oxygen rich gas of the first step, its oxygen content is preferably 21% to 100%, and concrete content is adjusted according to the Actual combustion situation of incinerator.

A kind of improvement as this method; The described oxygen rich gas of the first step can feed from cooling machine 6 bottoms, behind the grog layer through cooling machine 6, contains oxygen hot gas from the 6 anterior high temperature section extractions of cooling machine again; Offer air supply line 8 by oxygen enrichment system 9; Resupply incinerator 1, extract the oxygen content of hot blast and control, see Fig. 3 through valve 10.

As a kind of improvement of this method, the described air supply line 8 of the first step is provided with gas analyzer 12, and described mist detects mixed gas composition by gas analyzer 12, blasts the oxygen content and the temperature of the mist of incinerator 1 with control.

As a kind of improvement of this method, sneak in the hot air duct from the oxygen rich gas of oxygen enrichment system, this hot air duct contain the tertiary air of oxygen hot gas from firing system, provide through 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 the heat exchange of cooling machine, and oxygen content is 21%, and after adding oxygen rich gas, the mist oxygen content further improves, and temperature raises, and is beneficial to the burning of rubbish in the incinerator.

A kind of improvement as this method; The described air supply line of the first step can extract waste gas from the chimney of waste treatment system through exhaust piping 15, the exhausted air quantity that 13 controls of exhaust piping valve are extracted, and the waste gas of extraction mixes, adds the hot gas of part from firing system with the oxygen rich gas of oxygen enrichment system 9; After mixing, three strands of gases together get into incinerator 1; When playing the oxygen-enriched combusting effect, reach the flue gas recirculation utilization again, reduce the purpose of toxic emission when saving heat energy.

The present invention is on the technology of burning away the refuse and new dry cement production technology basis of maturation; Utilize oxygen-enriched combustion technology; Fully excavate the characteristics separately of three kinds of technology, make the efficient of incinerator and each system of clinker production all reach best, make garbage disposal more thorough; Pollutant, noxious material discharge more thorough, are a kind of more general even more ideal refuse disposal systems of technology of garbage disposal.

The above is merely the preferred embodiments of the present invention, is not restricted to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.

Claims (10)

1. clinker production line cooperative disposal garbage system; Comprise incinerator (1), flue (2), dore furnace (3), tertiary-air pipe (4), rotary kiln (5), cooling machine (6), hot air duct (7), air supply line (8); It is characterized in that: also comprise oxygen enrichment system (9); Oxygen enrichment system (9) is arranged on the air supply line (8) of incinerator; And between air supply line (8) and oxygen enrichment system (9), be provided with oxygen enrichment pipeline valve (10), between hot air duct (7) and air supply line (8), be provided with hot air duct valve (11).
2. clinker production line cooperative disposal garbage system according to claim 1 is characterized in that: between air supply line (8) and incinerator (1), be provided with gas analyzer (12).
3. clinker production line cooperative disposal garbage system according to claim 1 and 2 is characterized in that: between air supply line (8) and incinerator (1), be provided with air-introduced machine (14).
4. clinker production line cooperative disposal garbage system according to claim 1 and 2; It is characterized in that: on air supply line (8), be provided with exhaust piping (15), between exhaust piping (15) and air supply line (8), be provided with exhaust piping valve (13).
5. clinker production line cooperative disposal rubbish method is characterized in that: may further comprise the steps:
The first step: the domestic waste or the industrial refuse that will pass through pre-treatment feed incinerator (1); The hot blast branch that is come by clinker production line firing system provides and contains oxygen hot gas and mix the mist that forms with oxygen rich gas from oxygen enrichment system and offer incinerator (1) through air supply line (8), and regulates oxygen rich gas oxygen content and flow through the valve (11) of oxygen enrichment pipeline valve (10) and hot air duct;
Second step: rubbish is through incinerator (1) drying, burning, after-flame; Combustion product gases burns away through dore furnace (3) lining that flue (2) gets into the clinker production line; In dore furnace (3) lining organic matter is thoroughly decomposed; The flue gas purification system that carries through the clinker production line is then handled, and the rubbish residue after the burning directly gets into the rotary kiln (5) of clinker production line or gets into the stockyard.
6. clinker production line cooperative disposal rubbish method according to claim 5; It is characterized in that: the described oxygen rich gas of the first step can feed from cooling machine (6) bottom; Behind the grog layer through cooling machine (6), contain oxygen hot gas from the anterior high temperature section extraction of cooling machine (6) again, offer air supply line (8) by oxygen enrichment pipeline (9); Resupply incinerator (1), extract the oxygen content of hot blast and control through valve (10).
7. clinker production line cooperative disposal rubbish method according to claim 5; It is characterized in that: the described air supply line of the first step (8) is provided with gas analyzer (12); Described mist detects mixed gas composition by gas analyzer (12), blasts the oxygen content and the temperature of the mist of incinerator (1) with control.
8. according to claim 5 or 6 described clinker production line cooperative disposal rubbish methods; It is characterized in that: the oxygen rich gas of described oxygen enrichment system (9) is sneaked in the hot air duct (7); This hot air duct contain the tertiary air of oxygen hot gas from firing system, provide through tertiary-air pipe (4).
9. according to any described clinker production line cooperative disposal rubbish method of claim 5 to 7; It is characterized in that: the described air supply line of the first step can pass through the chimney extraction waste gas of exhaust piping (15) from the waste treatment system; The exhausted air quantity that exhaust piping valve (13) control is extracted; The oxygen rich gas that the same oxygen enrichment system of waste gas (9) that extracts mixes, adds the hot gas of part from firing system, together gets into incinerator (1) after three strands of gases mix.
10. according to claim 5 or 6 described clinker production line cooperative disposal rubbish methods, it is characterized in that: the described oxygen rich gas of the first step, its oxygen content are 21% to 100%.
CN201210233389.5A 2012-07-06 2012-07-06 System and method for collaborative garbage disposal of cement clinker production line CN102705837B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980410A (en) * 2012-11-20 2013-03-20 高玉宗 Grate cooler type garbage treatment device and garbage treatment method
CN103351106A (en) * 2013-06-27 2013-10-16 内蒙古蒙西水泥股份有限公司 Energy-saving and environment-friendly cement clinker preparation system
CN104100979A (en) * 2014-06-30 2014-10-15 华中科技大学 Oxygen-enriched combustion transformation method and device for garbage incineration grate furnace
CN104807017A (en) * 2015-05-08 2015-07-29 北京水泥厂有限责任公司 System for treating industrial waste in combination with thermal desorption and use method
CN104815843A (en) * 2015-05-08 2015-08-05 北京水泥厂有限责任公司 System of treating polluted soil through thermal desorption and use method
CN105032884A (en) * 2015-04-03 2015-11-11 坚构(北京)建筑技术有限公司 System and method of synergistic treatment of household garbage and energy resource comprehensive utilization with rotary cement kiln
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

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JP2011079709A (en) * 2009-10-08 2011-04-21 Taiheiyo Cement Corp Method and apparatus for converting waste into cement fuel
CN201990601U (en) * 2011-03-28 2011-09-28 南京凯盛国际工程有限公司 System capable of cooperatively treating domestic garbage with cement clinker production line
CN102344259A (en) * 2011-03-10 2012-02-08 叶金辉 Environmental-protection and energy-saving garbage incineration and waste gas utilization device
CN202719614U (en) * 2012-07-06 2013-02-06 南京凯盛国际工程有限公司 Cement clinker production line co-processing garbage system

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Publication number Priority date Publication date Assignee Title
JP2011079709A (en) * 2009-10-08 2011-04-21 Taiheiyo Cement Corp Method and apparatus for converting waste into cement fuel
CN101786809A (en) * 2009-12-31 2010-07-28 安徽海螺建材设计研究院 Garbage disposal system used in cement dry kiln production and disposal method thereof
CN101792139A (en) * 2010-02-02 2010-08-04 黄道军 Method for recovering CO2
CN102344259A (en) * 2011-03-10 2012-02-08 叶金辉 Environmental-protection and energy-saving garbage incineration and waste gas utilization device
CN201990601U (en) * 2011-03-28 2011-09-28 南京凯盛国际工程有限公司 System capable of cooperatively treating domestic garbage with cement clinker production line
CN202719614U (en) * 2012-07-06 2013-02-06 南京凯盛国际工程有限公司 Cement clinker production line co-processing garbage system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980410A (en) * 2012-11-20 2013-03-20 高玉宗 Grate cooler type garbage treatment device and garbage treatment method
CN102980410B (en) * 2012-11-20 2014-12-10 高玉宗 Grate cooler type garbage treatment device and garbage treatment method
CN103351106A (en) * 2013-06-27 2013-10-16 内蒙古蒙西水泥股份有限公司 Energy-saving and environment-friendly cement clinker preparation system
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
CN104100979A (en) * 2014-06-30 2014-10-15 华中科技大学 Oxygen-enriched combustion transformation method and device for garbage incineration grate furnace
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
CN105032884A (en) * 2015-04-03 2015-11-11 坚构(北京)建筑技术有限公司 System and method of synergistic treatment of household garbage and energy resource comprehensive utilization with rotary cement kiln
CN104807017A (en) * 2015-05-08 2015-07-29 北京水泥厂有限责任公司 System for treating industrial waste in combination with thermal desorption and use method
CN104815843A (en) * 2015-05-08 2015-08-05 北京水泥厂有限责任公司 System of treating polluted soil through 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
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

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