CN105114955A - Preparation method based on rotary kiln-type continuous distillation pyrolysis and gasification incinerator - Google Patents

Preparation method based on rotary kiln-type continuous distillation pyrolysis and gasification incinerator Download PDF

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CN105114955A
CN105114955A CN201510504033.4A CN201510504033A CN105114955A CN 105114955 A CN105114955 A CN 105114955A CN 201510504033 A CN201510504033 A CN 201510504033A CN 105114955 A CN105114955 A CN 105114955A
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China
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rotary kiln
flue gas
kiln
outlet
gasification
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CN201510504033.4A
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Chinese (zh)
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CN105114955B (en
Inventor
刘学军
王志斌
周云峰
陈和平
程永伟
陈正荣
邢涛
陈玉琴
李子昂
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江苏鼎新环保科技有限公司
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Abstract

The invention discloses a preparation method based on a rotary kiln-type continuous distillation pyrolysis and gasification incinerator. The rotary kiln-type continuous distillation pyrolysis and gasification incinerator comprises a feeding device, a kiln body rotary device, a distillation pyrolysis and gasification device and a waste gas purification device. The feeding device is arranged on the right end of the kiln body rotary device; the distillation pyrolysis and gasification device is arranged on the left end of the kiln body rotary device; the waste gas purification device is arranged on the left end of the distillation pyrolysis and gasification device; the kiln body rotary device comprises a rotary kiln; the distillation pyrolysis and gasification device comprises a distillation gasification chamber and a secondary combustion chamber; the waste gas purification device comprises a cyclone dust collector, a waste heat boiler, a fast cooling tower, a neutralizing tower, a bag-type dust collector, an induced draft fan and a spray scrubber; and the preparation method comprises the following steps of material primary combustion, material distillation gasification, smoke primary combustion, smoke primary dust collecting, smoke heat exchange, smoke fast cooling, smoke neutralizing, smoke secondary dust collecting, smoke disacidifying, and smoke up-to-standard releasing. By adopting the preparation method, medical wastes or industrial wastes can be subjected to drying and distillation pyrolysis by utilizing high-temperature smoke; fuel is saved; emission is environment-friendly; and the management cost of an enterprise is lowered.

Description

The preparation method of rotary kiln type continuous carbonization incinerator for thermal decomposition
Technical field
The invention belongs to energy-conserving and environment-protective equipment and technical field, particularly a kind of preparation method of rotary kiln type continuous carbonization incinerator for thermal decomposition, be applicable to cure the destructive distillation of useless or trade waste (containing danger wastes), pyrolysis, gasification burning.
Background technology
Existing rotary kiln device ubiquity kiln temperature is higher, chamber temperature is on the low side needs fuel oil or gas-fired combustion-supporting, increases enterprise operation cost.
Notification number is the Chinese patent of CN2295914, discloses a kind of rotary kiln type incinerator, it is characterized in that by round kiln cylinder; kiln hood cover body, kiln hood body, sealing device; burner; for air port, exhaust opening, charging aperture; ash hole; drive unit, refractory material installation connects to form, and it is applicable to burning domestic garbage; industrial refuse and poisonous and harmful substance; be a kind of environmental protection machinery device, its structure is simple, and cost is low; continuous burning various garbage; combustion rate is high, easy to use, has promotional value.According to this patent, there is following technological deficiency: because traditional rotary kiln is when processing materials such as curing useless or trade waste (containing danger wastes), kiln body air feed is uneven, cause material to burn in kiln body inside, do not reach the object of destructive distillation, pyrolysis, gasification, thus cause gas fume of combustion chamber quantity not sufficient, temperature is on the low side, do not reach national correlative link guaranteed request, and then need fuel oil or gas-fired combustion-supporting, directly increase enterprise operation cost.
Summary of the invention
The object of the invention is for solving the problems of the technologies described above, one is provided to utilize self body of heater constantly to rotate, material is ceaselessly seethed in stove, rolls, thermally equivalent, tentatively can make the preparation method of rotary kiln type continuous carbonization incinerator for thermal decomposition of dry materials, destructive distillation, pyrolysis, gasification.
In order to realize above-mentioned object, this invention takes following technical solution: rotary kiln type continuous carbonization incinerator for thermal decomposition, comprises feed arrangement, kiln body slewing equipment, carbonization gasification installation, exhaust gas cleaner, is characterized in that:
Described kiln body slewing equipment right-hand member is provided with feed arrangement, and kiln body slewing equipment left end is provided with carbonization gasification installation, and the left end of carbonization gasification installation is provided with exhaust gas cleaner, kiln body slewing equipment comprises rotary kiln, carbonization gasification installation comprises destructive gasifying room, dual firing chamber, exhaust gas cleaner comprises cyclone dust collectors, waste heat boiler, quench tower, neutralizing tower, sack cleaner, air-introduced machine, spray scrubber, chimney, and wherein the outlet of feed arrangement communicates with the entrance of rotary kiln, the outlet of rotary kiln communicates with the upper entrance of destructive gasifying room, the outlet of destructive gasifying room communicates with the lower entrances of dual firing chamber, the upper outlet of dual firing chamber communicates with the entrance of cyclone dust collectors, the top exit of cyclone dust collectors communicates with the top entry of waste heat boiler, the lower part outlet of waste heat boiler communicates with the top entry of quench tower, the lower part outlet of quench tower communicates with the lower entrances of neutralizing tower, the upper outlet of neutralizing tower communicates with the entrance of sack cleaner, air-introduced machine is passed through in the outlet of sack cleaner, air inducing pipeline enters the lower part outlet of spray scrubber, the upper outlet of spray scrubber is communicated with chimney.
Described rotary kiln is horizontal, and the center line of rotary kiln and the angle of horizontal plane are acute angle, and the center line of rotary kiln is lower than the center line of feed arrangement.
Described rotary kiln inside is provided with flow deflector, material is rotated and advances, continuous discharge.
The material of described destructive gasifying indoor produces flammable pyrolysis gas in abundant destructive distillation, pyrolysis, gasification, and send into dual firing chamber by air-introduced machine, be provided with rotation continuous discharging device bottom destructive gasifying room, discharge by drawing mechanism after material ashing completes.
Be evenly equipped with cloth air port bottom described destructive gasifying room, according to destructive gasifying indoor material destructive distillation situation, can increase or reduce wind supply quantity.
Described dual firing chamber's import is provided with spray burner, can reach combustion-supporting, combustion chamber air feed and protection burner.
Described feed arrangement is hydraulic means continuous feed.
A preparation method for rotary kiln type continuous carbonization incinerator for thermal decomposition, comprises following operating procedure:
1), material just fires, and opens burner combustion-supporting, in time rotating kiln temperature and raise, pusher pushes material in rotary kiln, material is at rotation kiln drying, preliminary pyrolysis, burning material, and rotary kiln utilizes self kiln body constantly to rotate, and makes material ceaselessly seethe advance in kiln;
2), material destructive gasifying, the material of preliminary destructive distillation, pyrolysis enters destructive gasifying room from rotary kiln afterbody, by the cloth air port that bottom is uniform, accurately controls oxygen, the material of preliminary carbonization contacts with oxygen, in the indoor fully destructive distillation of destructive gasifying, pyrolysis, gasification;
3), flue gas just fires, and the flue gas produced after pyrolysis enters dual firing chamber's Thorough combustion, effectively eliminates the organic matter in discarded object and poisonous and harmful substance;
4), flue gas rough dusting, the flue gas after burning enters cyclone dust collectors, preliminary removes the big dust particle contained in flue gas;
5), flue gas heat exchange, high-temperature flue gas enters waste heat boiler or other heat exchanger;
6), flue gas chilling, complete the flue gas after heat exchange and enter quench tower from heat boiler outlet, high-temperature flue gas temperature in quench tower was chilled to 180 DEG C from 550 DEG C in 1 second, avoided the synthesis again of bioxin;
7), flue gas neutralization, flue gas enters neutralizing tower from quench tower outlet, adds calcium hydroxide and active carbon in neutralizing tower, removes in flue gas the sour gas and heavy metal that contain;
8), smoke secondary dedusting, flue gas enters sack cleaner, further removes the dust contained in flue gas and harmful substance thereof;
9), flue gas deacidification, flue gas enters spray scrubber under air-introduced machine effect, removes further the sour gas contained in flue gas;
10), flue gas qualified discharge, the flue gas after washing enters in air through chimney.
It is higher that the present invention had both solved traditional rotary kiln type incinerator kiln temperature in carbonization process, the problem of dual firing chamber's temperature the is on the low side extra oil of need or gas-fired combustion-supporting, solve again the insufficient secondary pollution problem brought of traditional rotary kiln carbonization, high-temperature flue gas can be utilized to dry, carbonization doctor give up or trade waste (containing danger wastes) material, gasified by continuous pyrolysis, the combustible fumes decomposited is derived and burns, burn stable, save fuel, discharge reaches the environmental requirement of country, solve the higher problem of fuel consume needed for equipment, improve equipment economy, reduce the operating cost of enterprise.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Fig. 2 is structural representation of the present invention.
In figure: 1. rotary kiln; 2. destructive gasifying room; 3. dual firing chamber; 4. cyclone dust collectors; 5. waste heat boiler; 6. quench tower; 7. neutralizing tower; 8. sack cleaner; 9. air-introduced machine; 10. spray scrubber; 11. chimneys.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but not as limitation of the present invention:
Rotary kiln type continuous carbonization incinerator for thermal decomposition, comprise feed arrangement, kiln body slewing equipment, carbonization gasification installation, exhaust gas cleaner, described kiln body slewing equipment right-hand member is provided with feed arrangement, kiln body slewing equipment left end is provided with carbonization gasification installation, and the left end of carbonization gasification installation is provided with exhaust gas cleaner, kiln body slewing equipment comprises rotary kiln 1, carbonization gasification installation comprises destructive gasifying room 2, dual firing chamber 3, exhaust gas cleaner comprises cyclone dust collectors 4, waste heat boiler 5, quench tower 6, neutralizing tower 7, sack cleaner 8, air-introduced machine 9, spray scrubber 10, chimney 11, and wherein the outlet of feed arrangement communicates with the entrance of rotary kiln 1, the outlet of rotary kiln 1 communicates with the upper entrance of destructive gasifying room 2, the outlet of destructive gasifying room 2 communicates with the lower entrances of dual firing chamber 3, the upper outlet of dual firing chamber 3 communicates with the entrance of cyclone dust collectors 4, the top exit of cyclone dust collectors 4 communicates with the top entry of waste heat boiler 5, the lower part outlet of waste heat boiler 5 communicates with the top entry of quench tower 6, the lower part outlet of quench tower 6 communicates with the lower entrances of neutralizing tower 7, the upper outlet of neutralizing tower 7 communicates with the entrance of sack cleaner 8, the outlet of sack cleaner 8 is by air-introduced machine 9, air inducing pipeline enters the lower part outlet of spray scrubber 10, the upper outlet of spray scrubber 10 is communicated with chimney 11, described rotary kiln 1 is horizontal, and the center line of rotary kiln 1 and the angle of horizontal plane are acute angle, and the center line of rotary kiln 1 is lower than the center line of feed arrangement, described rotary kiln 1 inside is provided with flow deflector, material is rotated and advances, continuous discharge, material in described destructive gasifying room 2 produces flammable pyrolysis gas in abundant destructive distillation, pyrolysis, gasification, and send into dual firing chamber 3 by air-introduced machine, be provided with rotation continuous discharging device bottom destructive gasifying room 2, discharge by drawing mechanism after material ashing completes, be evenly equipped with cloth air port bottom described destructive gasifying room 2, according to material destructive distillation situation in destructive gasifying room 2, can increase or reduce wind supply quantity, described dual firing chamber 3 import is provided with spray burner, can reach combustion-supporting, combustion chamber air feed and protection burner, prolonging combustion device service life, described feed arrangement is hydraulic means continuous feed.
During concrete enforcement, a kind of preparation method of rotary kiln type continuous carbonization incinerator for thermal decomposition, comprise following operating procedure: 1), material just fires, open burner combustion-supporting, when in rotary kiln 1, temperature raises, pusher pushes material in rotary kiln 1, material is dried rotary kiln 1 in, tentatively pyrolysis, burning material, rotary kiln 1 utilizes self kiln body constantly to rotate, and makes material ceaselessly seethe advance in kiln; 2), material destructive gasifying, the material of preliminary destructive distillation, pyrolysis enters destructive gasifying room 2 from rotary kiln 1 afterbody, by the cloth air port that bottom is uniform, accurately controls oxygen, the material of preliminary carbonization contacts with oxygen, abundant destructive distillation, pyrolysis, gasification in destructive gasifying room 2; 3), flue gas just fires, and the flue gas produced after pyrolysis enters dual firing chamber 3 Thorough combustion, effectively eliminates the organic matter in discarded object and poisonous and harmful substance; 4), flue gas rough dusting, the flue gas after burning enters cyclone dust collectors 4, preliminary removes the big dust particle contained in flue gas; 5), flue gas heat exchange, high-temperature flue gas enters waste heat boiler 5 or other heat exchanger; 6), flue gas chilling, complete the flue gas after heat exchange from waste heat boiler 5 outlet enter quench tower 6, high-temperature flue gas temperature in quench tower 6 was chilled to 180 DEG C from 550 DEG C in 1 second, avoided the synthesis again of bioxin; 7), flue gas neutralization, flue gas enters neutralizing tower 7 from quench tower 6 outlet, adds calcium hydroxide and active carbon in neutralizing tower 7, removes in flue gas the sour gas and heavy metal that contain; 8), smoke secondary dedusting, flue gas enters sack cleaner 8, further removes the dust contained in flue gas and harmful substance thereof; 9), flue gas deacidification, flue gas enters spray scrubber 10 under air-introduced machine 9 acts on, and removes further the sour gas contained in flue gas; 10), flue gas qualified discharge, the flue gas after washing enters in air through chimney 11.
The combustible fumes decomposited in useless for doctor or the destructive distillation of trade waste (containing danger wastes) material, pyrolysis, gasification is derived by the present invention to burn, reduce fuel consumption, solve the higher problem of fuel consume needed for equipment, improve the economy that equipment runs, reduce the operating cost of enterprise.
The above embodiment of the present invention; be only used to the citing clearly illustrating that the present invention does; but be not used for limiting the scope of the invention, all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be limited by every claim.

Claims (8)

1. rotary kiln type continuous carbonization incinerator for thermal decomposition, comprise feed arrangement, kiln body slewing equipment, carbonization gasification installation, exhaust gas cleaner, it is characterized in that: described kiln body slewing equipment right-hand member is provided with feed arrangement, kiln body slewing equipment left end is provided with carbonization gasification installation, and the left end of carbonization gasification installation is provided with exhaust gas cleaner, kiln body slewing equipment comprises rotary kiln (1), carbonization gasification installation comprises destructive gasifying room (2), dual firing chamber (3), exhaust gas cleaner comprises cyclone dust collectors (4), waste heat boiler (5), quench tower (6), neutralizing tower (7), sack cleaner (8), air-introduced machine (9), spray scrubber (10), chimney (11), and wherein the outlet of feed arrangement communicates with the entrance of rotary kiln (1), the outlet of rotary kiln (1) communicates with the upper entrance of destructive gasifying room (2), the outlet of destructive gasifying room (2) communicates with the lower entrances of dual firing chamber (3), the upper outlet of dual firing chamber (3) communicates with the entrance of cyclone dust collectors (4), the top exit of cyclone dust collectors (4) communicates with the top entry of waste heat boiler (5), the lower part outlet of waste heat boiler (5) communicates with the top entry of quench tower (6), the lower part outlet of quench tower (6) communicates with the lower entrances of neutralizing tower (7), the upper outlet of neutralizing tower (7) communicates with the entrance of sack cleaner (8), the outlet of sack cleaner (8) is by air-introduced machine (9), air inducing pipeline enters the lower part outlet of spray scrubber (10), the upper outlet of spray scrubber (10) is communicated with chimney (11).
2. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, it is characterized in that: described rotary kiln (1) is for horizontal, the center line of rotary kiln (1) and the angle of horizontal plane are acute angle, and the center line of rotary kiln (1) is lower than the center line of feed arrangement.
3. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, is characterized in that: described rotary kiln (1) inside is provided with flow deflector, material is rotated and advances, continuous discharge.
4. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, it is characterized in that: the material in described destructive gasifying room (2) produces flammable pyrolysis gas in abundant destructive distillation, pyrolysis, gasification, and send into dual firing chamber (3) by air-introduced machine, bottom, destructive gasifying room (2) is provided with rotation continuous discharging device, discharges after material ashing completes by drawing mechanism.
5. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, is characterized in that: described bottom, destructive gasifying room (2) is evenly equipped with cloth air port, according to destructive gasifying room (2) interior material destructive distillation situation, can increase or reduce wind supply quantity.
6. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, is characterized in that: described dual firing chamber (3) import is provided with spray burner, can reach combustion-supporting, combustion chamber air feed and protection burner.
7. rotary kiln type continuous carbonization incinerator for thermal decomposition according to claim 1, is characterized in that: described feed arrangement is hydraulic means continuous feed.
8. a preparation method for rotary kiln type continuous carbonization incinerator for thermal decomposition as claimed in claim 1, is characterized in that: comprise following operating procedure:
1), material just fires, open burner combustion-supporting, when in rotary kiln (1), temperature raises, pusher pushes material in rotary kiln (1), material is dried in rotary kiln (1), preliminary pyrolysis, burn material, rotary kiln (1) utilizes self kiln body constantly to rotate, and makes material ceaselessly seethe advance in kiln;
2), material destructive gasifying, the material of preliminary destructive distillation, pyrolysis enters destructive gasifying room (2) from rotary kiln (1) afterbody, by the cloth air port that bottom is uniform, accurately controls oxygen, the material of preliminary carbonization contacts with oxygen, abundant destructive distillation, pyrolysis, gasification in destructive gasifying room 2;
3), flue gas just fires, and the flue gas produced after pyrolysis enters dual firing chamber (3) Thorough combustion, effectively eliminates the organic matter in discarded object and poisonous and harmful substance;
4), flue gas rough dusting, the flue gas after burning enters cyclone dust collectors (4), preliminary removes the big dust particle contained in flue gas;
5), flue gas heat exchange, high-temperature flue gas enters waste heat boiler (5) or other heat exchanger;
6), flue gas chilling, complete the flue gas after heat exchange from waste heat boiler (5) outlet enter quench tower (6), high-temperature flue gas temperature in quench tower (6) was chilled to 180 DEG C from 550 DEG C in 1 second, avoided the synthesis again of bioxin;
7), flue gas neutralization, flue gas enters neutralizing tower (7) from quench tower (6) outlet, and neutralizing tower adds calcium hydroxide and active carbon in (7), removes in flue gas the sour gas and heavy metal that contain;
8), smoke secondary dedusting, flue gas enters sack cleaner (8), further removes the dust contained in flue gas and harmful substance thereof;
9), flue gas deacidification, flue gas enters spray scrubber 10 under air-introduced machine (9) effect, removes further the sour gas contained in flue gas;
10), flue gas qualified discharge, the flue gas after washing enters in air through chimney (11).
CN201510504033.4A 2015-08-18 2015-08-18 The preparation method of rotary kiln type continuous carbonization incinerator for thermal decomposition CN105114955B (en)

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CN105953253A (en) * 2016-06-24 2016-09-21 深圳市三丰环保科技有限公司 Waste gas treatment equipment
CN107243505A (en) * 2017-07-25 2017-10-13 云南大地绿坤环保科技有限公司 A kind of incineration treatment method of the waste residue containing nitrile
CN108955282A (en) * 2018-06-27 2018-12-07 四川省玻纤集团有限公司 A kind of basalt fibre prepares solvent recovery technology from vent gas
CN109469903A (en) * 2018-09-20 2019-03-15 武汉市嘉恒化工有限公司 The incineration treatment method of Industrial Solid Waste
CN109631052A (en) * 2019-01-18 2019-04-16 南昌市医疗废物处置中心有限公司 A kind of steady and continuous pyrolytic incineration method of clinical waste
CN111408608A (en) * 2020-04-20 2020-07-14 聊城市鲁西化工工程设计有限责任公司 Process and system for automatic ash removal and heat energy recovery of waste paint iron drum organic matter pyrolysis and application
CN111853793A (en) * 2020-07-27 2020-10-30 姚敦卫 Treatment process of household garbage

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953253A (en) * 2016-06-24 2016-09-21 深圳市三丰环保科技有限公司 Waste gas treatment equipment
CN105953253B (en) * 2016-06-24 2018-04-20 深圳市三丰环保科技有限公司 A kind of waste gas treatment equipment
CN107243505A (en) * 2017-07-25 2017-10-13 云南大地绿坤环保科技有限公司 A kind of incineration treatment method of the waste residue containing nitrile
CN108955282A (en) * 2018-06-27 2018-12-07 四川省玻纤集团有限公司 A kind of basalt fibre prepares solvent recovery technology from vent gas
CN109469903A (en) * 2018-09-20 2019-03-15 武汉市嘉恒化工有限公司 The incineration treatment method of Industrial Solid Waste
CN109631052A (en) * 2019-01-18 2019-04-16 南昌市医疗废物处置中心有限公司 A kind of steady and continuous pyrolytic incineration method of clinical waste
CN111408608A (en) * 2020-04-20 2020-07-14 聊城市鲁西化工工程设计有限责任公司 Process and system for automatic ash removal and heat energy recovery of waste paint iron drum organic matter pyrolysis and application
CN111853793A (en) * 2020-07-27 2020-10-30 姚敦卫 Treatment process of household garbage

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