CN103968396A - Rotary kiln system capable of incinerating junked tire - Google Patents
Rotary kiln system capable of incinerating junked tire Download PDFInfo
- Publication number
- CN103968396A CN103968396A CN201410217896.9A CN201410217896A CN103968396A CN 103968396 A CN103968396 A CN 103968396A CN 201410217896 A CN201410217896 A CN 201410217896A CN 103968396 A CN103968396 A CN 103968396A
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- scraper
- trough conveyer
- feeding
- tire
- kiln
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Gasification And Melting Of Waste (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to rotary kilns on a dry cement production line, in particular to a rotary kiln system capable of incinerating a junked tire. The rotary kiln system comprises tire conveying equipment and a rotary kiln, a first feeding scraper-trough conveyer is arranged below a conveying terminal of the tire conveying equipment, a lower scraper-trough conveyer opening of the first feeding scraper-trough conveyer is connected with a feeding port of a power-driven triple air blockage valve, a discharge port of the power-driven triple air blockage valve is connected with a feeding port of a pneumatic gate valve, a discharge port of the pneumatic gate valve is connected with an upper scraper-trough conveyer opening of a second feeding scraper-trough conveyer, a lower scraper-trough conveyer opening of the second feeding scraper-trough conveyer is connected with a feed-end chamber of the rotary kiln, and a feeding point on the feed-end chamber is located at the position enabling the tire to exactly fall in the center of the rotary kiln. According to the system, material conveying can be carried out by adjusting conveying speed and weight metering, hot air losses and exhaust emissions generated when the junked tire enters the kiln can be avoided, the fed tire can exactly fall in the center of the kiln, combustion time and combustion temperature are guaranteed, and it is guaranteed that the ash content of the tire after combustion is fully mixed and reacts with materials in the kiln.
Description
Technical field
The present invention relates to the rotary kiln on dry cement production line, specifically a kind of rotary system that can burn junked tire.
Background technology
Utilize the existing a large amount of practice in the world of cement rotary kiln burning disposal bazardous waste.There are abroad a lot of power plants, paper mill, steel plant and smeltery all to make alternative fuel with junked tire, China carries out the research of this respect and starts late, only have a few producer to carry out examination and burn experiment, be domesticly so far also provided with industrialized junked tire burning process system without any a cement plant.
Rotary cement kiln has desirable burning condition: incineration temperature high (the highest flame temperature can reach 1800 DEG C), junked tire kiln residence time long (can reach 25 minutes), and can be kept in motion all the time together in company with raw material, can make junked tire burn more thorough.Secondly aspect environmental protection, cement kiln total system moves under negative pressure, and the waste gas that burning produces can not overflow, and efficiency of dust collection is high; Cement burning carries out under alkali condition, makes chlorine in junked tire, sulphur, fluorine etc. be neutralized absorption completely by alkaline matter in kiln, becomes nontoxic calcium chloride, calcium sulfate, calcirm-fluoride, and the purification (depickling) of being convenient to its waste gas is processed; After burning residue enter clinker, cement quality is had no adverse effects, accomplished thorough burning and non-secondary pollution; Cement kiln can also be fixed on the metallic elements such as the iron in junked tire, cadmium, chromium in grog, has avoided diffusion again.
Summary of the invention
The technical problem to be solved in the present invention is: utilize the desirable burning condition of cement rotary kiln, a kind of rotary system that can burn junked tire is provided.
The technical scheme that the present invention solves described problem employing is:
A kind of rotary system that can burn junked tire, comprise tire conveying equipment, rotary kiln, its below of the feeding terminal of described tire conveying equipment is provided with the first feeding scraper-trough conveyer, described the first feeding scraper-trough conveyer bottom scraper-trough conveyer mouth connects the charging aperture of electronic three lock air-valve, the discharging opening of described electronic three lock air-valve connects the charging aperture of pneumatic gate valve, the discharging opening of described pneumatic gate valve connects the top scraper-trough conveyer mouth of the second feeding scraper-trough conveyer, the bottom scraper-trough conveyer mouth of described the second feeding scraper-trough conveyer connects the kiln tail smoke-box of described rotary kiln, feeding point on described kiln tail smoke-box is positioned at and makes tire just in time drop on the supercentral position of rotary kiln.
Adopt the present invention of technique scheme, compared with prior art, its beneficial effect is:
Tire conveying equipment in native system can be by regulating transporting velocity meter heavily carry out conveying, sends into heat and the chain control of kiln hood coal injection system that the damaged tire weight of kiln is converted into, to regulate the aggregate supply heat of kiln by calculating.The damaged tire entrance that enters kiln tail has multiple tracks to have the gate of lock wind function, prevents that the hot air flow toxic emission of becoming estranged from appearring in junked tire while entering in kiln.Feeding scraper-trough conveyer in native system can be guaranteed the smooth feeding of system, make simultaneously the tire of feeding can just in time drop on kiln in the heart, will be conducive to like this tire and better burn, and in ash content after tire burning and kiln, material mixes and reaction fully.
As preferably, the present invention further technical scheme is:
Described tire conveying equipment comprises box-type feeder, the first roller path, belt feeder, the second roller path, the spout below of box-type feeder arranges described the first roller path, the feeding terminal of described the first roller path connects described belt feeder, and the feeding terminal of described belt feeder connects described the second roller path.Adopt such tire conveying equipment, more easily realize the adjusting of transporting velocity and the configuration of metering and weighing device.
Described box-type feeder is the carriage body construction shape equipment by hydraulic-driven control feeding capacity.Such batcher has ensured that there are enough volumes in material railway carriage or compartment, and the junked tire of being also convenient to by grab claw, ground to be piled up is supplied in material railway carriage or compartment.
Described the first feeding scraper-trough conveyer is the equipment that physical dimension, arrangement are identical with described the second feeding scraper-trough conveyer, its scraper-trough conveyer mouth sectional dimension is 1400 × 500mm, scraper-trough conveyer height is 1500mm, scraper-trough conveyer angle of inclination is greater than 55 degree, and physical dimension, arrangement and the junked tire that is less than ∮ 1250 × 450 mm mate.Such structural design, the tire that makes size be less than ∮ 1250x450 mm can roll downwards after entering scraper-trough conveyer, guarantees system feeding smoothly.
The feeding terminal of described the second roller path faces the scraper-trough conveyer mouth long leg position of the first feeding scraper-trough conveyer of its below; The discharging opening of described Pneumatic gate valve faces the scraper-trough conveyer mouth long leg position of the second feeding scraper-trough conveyer of its below.Such structural design is equally also to guarantee that the junked tire that size is less than ∮ 1250 × 450 mm directly enters rotary kiln burning.According to this size classes, the tire of motorcycle, car and truck can directly enter rotary kiln incineration without cutting substantially, has so just reduced the link of pre-chopping tire, reduces concerned process steps and equipment, system is taken up an area few, can save cement plant construction investment
Its sectional dimension of the flap valve of described electronic three lock air-valve is the same with the scraper-trough conveyer mouth sectional dimension of the first feeding scraper-trough conveyer and the second feeding scraper-trough conveyer is 1400 × 500mm, and the height between two-layer valve plate is 2000mm.Such structure can guarantee to lock the realization of wind function, prevents the hot air flow toxic emission of becoming estranged.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1-grab claw, 2-box-type feeder, 3-the first roller path, 4-belt feeder, 5-the second roller path, 6-the first feeding scraper-trough conveyer, the electronic three lock air-valve of 7-, 8-pneumatic gate valve, 9-the second feeding scraper-trough conveyer, 10-kiln tail smoke-box, 11-rotary kiln.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and object is only to understand better content of the present invention.
Referring to Fig. 1, the rotary system that can burn junked tire described in the present embodiment, by grab claw 1, box-type feeder 2, the first roller path 3, belt feeder 4, the second roller path 5, the first feeding scraper-trough conveyer 6, electronic three lock air-valve 7, pneumatic gate valve 8, the second feeding scraper-trough conveyer 9 and rotary kiln 11 form, box-type feeder 2 is the carriage body construction shape equipment by hydraulic-driven control feeding capacity, box-type feeder 2 belows arrange the first roller path 3, the material loading end of corresponding first roller path 3 of spout of box-type feeder 2, the below of the first roller path 3 arranges belt feeder 4, the material loading end of the corresponding belt feeder 4 of feeding terminal of the first roller path 3, the below of belt feeder 4 arranges the second roller path 5, the material loading end of corresponding second roller path 5 of feeding terminal of belt feeder 4, the second roller path 5 be provided with the first feeding scraper-trough conveyer 6, the scraper-trough conveyer mouth sectional dimension of the first feeding scraper-trough conveyer 6 is 1400 × 500mm, scraper-trough conveyer height is 1500mm, scraper-trough conveyer angle of inclination is greater than 55 degree, the feeding terminal of the second roller path 5 faces the scraper-trough conveyer mouth long leg position of the first feeding scraper-trough conveyer 6, the first feeding scraper-trough conveyer 6 bottom scraper-trough conveyer mouths connect the charging aperture of electronic three lock air-valve 7, its sectional dimension of the flap valve of electronic three lock air-valve 7 is equally 1400 × 500mm with the scraper-trough conveyer mouth sectional dimension of the first feeding scraper-trough conveyer 6, height between two-layer valve plate is 2000mm, electronic three lock wind, 7 discharging opening connects the charging aperture of pneumatic gate valve 8, the discharging opening of pneumatic gate valve 8 connects the top scraper-trough conveyer mouth of the second feeding scraper-trough conveyer 9, and face the scraper-trough conveyer mouth long leg position of the second feeding scraper-trough conveyer 9, the scraper-trough conveyer mouth sectional dimension of the second feeding scraper-trough conveyer 9 is 1400 × 500mm, scraper-trough conveyer height is 1500mm, scraper-trough conveyer angle of inclination is greater than 55 degree, the second feeding scraper-trough conveyer 9 bottom scraper-trough conveyer mouths connect the kiln tail smoke-box 10 of rotary kiln 11, and the feeding point on kiln tail smoke-box 10 is positioned at and makes tire just in time drop on the supercentral position of rotary kiln 11, that is the feeding of tire point can not be arranged on the center at kiln tail smoke-box 10 back sides, feeding point will have certain angle.
Said system can be burnt junked tire in rotary kiln 11, can ensure burning time and the temperature of junked tire.
Native system has successfully been designed and can have been burned charging system for industrialized junked tire, determine that junked tire burns the adjustment parameter that Cement clinker buring thermally equilibrated impact and alternative fuel are added, and the impact of metal ingredient on cement quality in junked tire, reach nuisanceless disposal energy-saving and cost-reducing and discarded object.
The above, be only preferred embodiment of the present invention, not invention done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all belong to protection scope of the present invention.
Claims (7)
1. one kind can be burned the rotary system of junked tire, comprise tire conveying equipment, rotary kiln, it is characterized in that, its below of the feeding terminal of described tire conveying equipment is provided with the first feeding scraper-trough conveyer, described the first feeding scraper-trough conveyer bottom scraper-trough conveyer mouth connects the charging aperture of electronic three lock air-valve, the discharging opening of described electronic three lock air-valve connects the charging aperture of pneumatic gate valve, the discharging opening of described pneumatic gate valve connects the top scraper-trough conveyer mouth of the second feeding scraper-trough conveyer, the bottom scraper-trough conveyer mouth of described the second feeding scraper-trough conveyer connects the kiln tail smoke-box of described rotary kiln, feeding point on described kiln tail smoke-box is positioned at and makes tire just in time drop on the supercentral position of rotary kiln.
2. the rotary system that can burn junked tire according to claim 1, it is characterized in that, described tire conveying equipment comprises box-type feeder, the first roller path, belt feeder, the second roller path, the spout below of box-type feeder arranges described the first roller path, the feeding terminal of described the first roller path connects described belt feeder, and the feeding terminal of described belt feeder connects described the second roller path.
3. the rotary system that can burn junked tire according to claim 2, is characterized in that, described box-type feeder is the carriage body construction shape equipment by hydraulic-driven control feeding capacity.
4. the rotary system that can burn junked tire according to claim 1, it is characterized in that, described the first feeding scraper-trough conveyer is the equipment that physical dimension, arrangement are identical with described the second feeding scraper-trough conveyer, its scraper-trough conveyer mouth sectional dimension is 1400 × 500mm, scraper-trough conveyer height is 1500mm, scraper-trough conveyer angle of inclination is greater than 55 degree, and physical dimension, arrangement and the junked tire that is less than ∮ 1250 × 450 mm mate.
5. the rotary system that can burn junked tire according to claim 2, is characterized in that, the feeding terminal of described the second roller path faces the scraper-trough conveyer mouth long leg position of the first feeding scraper-trough conveyer of its below.
6. the rotary system that can burn junked tire according to claim 1, is characterized in that, the discharging opening of described Pneumatic gate valve faces the scraper-trough conveyer mouth long leg position of the second feeding scraper-trough conveyer of its below.
7. the rotary system that can burn junked tire according to claim 1, it is characterized in that, its sectional dimension of the flap valve of described electronic three lock air-valve is the same with the scraper-trough conveyer mouth sectional dimension of the first feeding scraper-trough conveyer and the second feeding scraper-trough conveyer is 1400 × 500mm, and the height between two-layer valve plate is 2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217896.9A CN103968396B (en) | 2014-05-22 | 2014-05-22 | Can burn the rotary system of junked tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217896.9A CN103968396B (en) | 2014-05-22 | 2014-05-22 | Can burn the rotary system of junked tire |
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| CN103968396A true CN103968396A (en) | 2014-08-06 |
| CN103968396B CN103968396B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410217896.9A Active CN103968396B (en) | 2014-05-22 | 2014-05-22 | Can burn the rotary system of junked tire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387068A (en) * | 2018-10-16 | 2019-02-26 | 黄秀媚 | A kind of sand drying system |
| CN109458835A (en) * | 2018-10-16 | 2019-03-12 | 黄秀媚 | A kind of band conveyer and the sand drying system with the band conveyer |
| CN112361798A (en) * | 2020-11-05 | 2021-02-12 | 江苏鹏威重型设备有限公司 | Rotary drying and calcining machine using steam as heating source |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5989982A (en) * | 1982-10-15 | 1984-05-24 | フエスト−アルピ−ネ・アクチエンゲゼルシヤフト | Feeder for supplying rotary kiln with pneumatic tire for car |
| US5078594A (en) * | 1991-01-28 | 1992-01-07 | Cadence Chemical Resources, Inc. | Device for charging combustible solids to rotary kilns |
| JP2003246653A (en) * | 2002-02-22 | 2003-09-02 | Mitsubishi Materials Corp | Method of producing cement clinker |
| CN201971407U (en) * | 2011-03-30 | 2011-09-14 | 中材建设有限公司 | Anti-sticking, anti-blockage rotary air-locking discharger |
| CN203848302U (en) * | 2014-05-22 | 2014-09-24 | 中材建设有限公司 | Rotary kiln system capable of incinerating waste tires |
-
2014
- 2014-05-22 CN CN201410217896.9A patent/CN103968396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5989982A (en) * | 1982-10-15 | 1984-05-24 | フエスト−アルピ−ネ・アクチエンゲゼルシヤフト | Feeder for supplying rotary kiln with pneumatic tire for car |
| US5078594A (en) * | 1991-01-28 | 1992-01-07 | Cadence Chemical Resources, Inc. | Device for charging combustible solids to rotary kilns |
| JP2003246653A (en) * | 2002-02-22 | 2003-09-02 | Mitsubishi Materials Corp | Method of producing cement clinker |
| CN201971407U (en) * | 2011-03-30 | 2011-09-14 | 中材建设有限公司 | Anti-sticking, anti-blockage rotary air-locking discharger |
| CN203848302U (en) * | 2014-05-22 | 2014-09-24 | 中材建设有限公司 | Rotary kiln system capable of incinerating waste tires |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387068A (en) * | 2018-10-16 | 2019-02-26 | 黄秀媚 | A kind of sand drying system |
| CN109458835A (en) * | 2018-10-16 | 2019-03-12 | 黄秀媚 | A kind of band conveyer and the sand drying system with the band conveyer |
| CN109387068B (en) * | 2018-10-16 | 2020-08-07 | 广东惠信泰新材料有限公司 | Sand drying system |
| CN112361798A (en) * | 2020-11-05 | 2021-02-12 | 江苏鹏威重型设备有限公司 | Rotary drying and calcining machine using steam as heating source |
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| Publication number | Publication date |
|---|---|
| CN103968396B (en) | 2016-05-04 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Qiang Inventor after: Cao Xinming Inventor after: Jiang Shufeng Inventor after: Ma Zhengrong Inventor after: Li Runguo Inventor after: Zhang Chao Inventor after: Li Jun Inventor after: Yu Jianguo Inventor before: Cao Xinming Inventor before: Wang Qiang Inventor before: Jiang Shufeng Inventor before: Ma Zhengrong Inventor before: Li Runguo Inventor before: Zhang Chao Inventor before: Li Jun Inventor before: Yu Jianguo |
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