CN102627415A - Energy-saving environmental-friendly lime production line for rotary electrical kiln - Google Patents
Energy-saving environmental-friendly lime production line for rotary electrical kiln Download PDFInfo
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- CN102627415A CN102627415A CN2012101173742A CN201210117374A CN102627415A CN 102627415 A CN102627415 A CN 102627415A CN 2012101173742 A CN2012101173742 A CN 2012101173742A CN 201210117374 A CN201210117374 A CN 201210117374A CN 102627415 A CN102627415 A CN 102627415A
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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
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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Abstract
The invention discloses an energy-saving environmental-friendly lime production line for a rotary electrical kiln, which comprises a rotary kiln and is characterized in that an electric heating device is positioned in the rotary kiln, a lime cooling device, a limestone preheating device, a carbon dioxide recycling device and a dust collector are positioned outside the rotary kiln, the lime cooling device is communicated with the rotary kiln, the limestone preheating device is communicated with the tail of the rotary kiln, and the carbon dioxide recycling device and the dust collector are communicated with the preheating device through an evacuating device. The energy-saving environmental-friendly lime production line has the advantages of achieving automation of limestone production processes, being capable of producing continuously, fully using an electric heating technique to calcine lime, being capable of producing high-purity high-whiteness high-cleanness edible and medical calcium oxide, being capable of using waste heat, saving energy, being free of smoke emission in recycling treatment of carbon dioxide and having no pollution on the environment.
Description
Technical field
The present invention relates to lime production, specifically is a kind of energy-conserving and environment-protective revolution electrical kiln lime production line.
Background technology
It is to adopt the limestone kiln of burning coal that traditional lime is produced, and this is the production of a kind of roughing type, and not only production environment is abominable; Pollution to environment is also big, afterwards, though there is the people to use Sweet natural gas, coke gas etc. to do limestone kiln fuel; But fuel also can produce lime in combustion processes and pollute, and makes lime product of low quality, does not reach food grade and medical grade; Simultaneously, the carbonic acid gas that produces in producing is not all fully utilized yet, Carbon emission pollutes atmosphere in environment.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art, and a kind of revolution electrical kiln lime production line of energy-conserving and environment-protective is provided, this production line utilizes electric energy heating rotary kiln; Can produce the quicklime of food grade and medical grade, and the utilization of ability used heat, the energy saved; Carbon dioxide recovery is handled; Accomplish carbon dioxide zero discharge, no flue dust discharging, pollution-free to atmosphere.
The technical scheme that realizes the object of the invention is:
A kind of energy-conserving and environment-protective revolution electrical kiln lime production line; Comprise rotary kiln; Different with prior art is: in rotary kiln, be provided with electric heater unit, be outside equipped with lime refrigerating unit, Wingdale preheating unit, carbon dioxide recovering apparatus and cleaning apparatus at rotary kiln, the lime refrigerating unit is communicated with the kiln hood of rotary kiln; The Wingdale preheating unit is communicated with the kiln tail of rotary kiln, and carbon dioxide recovering apparatus and cleaning apparatus are communicated with the Wingdale preheating unit through air extractor.
The technical process of this production line is:
(1) limestone crushing is become a certain size particle;
(2) send into preheating unit and carry out preheating and drying;
(3) get into the revolution further preheating in electrical kiln preheating zone through automatic emptying machine;
(4) generate lime and carbonic acid gas in the decomposition reaction of rotary kiln electric heater unit calcining zone;
(5) after lime cools off through refrigerating unit, get into finished product bin;
(6) carbonic acid gas advances rotary kiln through blowback cold wind, gets into preheating unit again, preheating Wingdale raw material;
(7) carbonic acid gas reclaims carbonic acid gas from preheating storehouse suction carbon dioxide recovering apparatus.
Described electric heater unit is fixedly installed on the kiln hood place of rotary kiln; Form by heating rod pipe support, rack sleeve, high temperature resistant pallet, disc holder, heating rod, conductor and insulation thimble; Heating rod is fixed on the disc holder, and disc holder is fixed on heating rod pipe support and the rack sleeve, and high temperature resistant pallet is arranged side by side with a disc holder that is arranged on kiln hood; Conductor is connected with external power; Heating rod is set with insulation thimble near an end of kiln hood, and the temperature of electric heater unit is adjustable, and top temperature is 1350 ℃.
Described refrigerating unit is a long tubular pipe, and pipeline one end is communicated with the kiln body, and the other end links to each other with blower fan, and lime burns till the back and gets into the pipeline of refrigerating unit from the kiln body, and with roots blower blowing cooling, the hot blast blowback gets into the kiln body again.
Described preheating unit is a feed bin; Be provided with heat exchanger tube in the storehouse; Heat exchanger tube one end is communicated with the kiln body; The other end is communicated with extraction equipment, and extraction equipment is communicated with the carbon dioxide recovery treatment unit, and the hot blast and the carbonic acid gas preheating heap that blow from the kiln body fill limestone particle other at heat exchanger tube or on every side.
Described carbon dioxide recovery treatment unit is commercial equipment, is prior art.
Advantage of the present invention is: realize the lime Automation of Manufacturing Process, can continuous production, and make full use of electric energy heating technology and calcine; Can produce high purity, high whiteness, high clean food grade and the quicklime of medical grade, the energy is saved in the utilization of ability used heat; Carbon dioxide recovery is handled; Carbon dioxide zero discharge, no flue dust discharging, pollution-free to atmosphere.
Description of drawings
Fig. 1 is the structural representation of a kind of energy-conserving and environment-protective revolution of the present invention electrical kiln lime production line;
Fig. 2 turns round the structural representation of electric heater unit in the electrical kiln for the present invention;
Fig. 3 is the process flow sheet of a kind of energy-conserving and environment-protective revolution of the present invention electrical kiln lime production line.
Among the figure: 1. the high temperature resistant pallet 6-4. of preheating feed bin 1-1. heat exchanger tube 2. feeding machine 3. feeding tubes, 4. kiln tail 5. kiln bodies, 6. electric heater unit 6-1. heating rod pipe support 6-2. rack sleeve 6-3. disc holder 6-5. heating rod 6-6. conductor 6-7. insulation thimble 7. kiln hoods 8. vacuum fan 9. cleaning apparatuss 10. carbon dioxide recovery treatment unit 11. electrical control cubicles 12. temperature measuring heads 13. refrigerating units 14. blower fans.
Embodiment
With reference to Fig. 1, a kind of energy-conserving and environment-protective revolution of the present invention electrical kiln lime production line comprises preheating feed bin 1, rotary kiln body 5, electric heater unit 6, refrigerating unit 13, vacuum fan 8, cleaning apparatus 9 and carbon dioxide recovery treatment unit 10.Be provided with heat exchanger tube 1-1 in the described preheating feed bin 1, heat exchanger tube 1-1 is communicated with kiln body 5, and preheating feed bin 1 also is communicated with carbon dioxide recovery treatment unit 10 through vacuum fan 8 and cleaning apparatus 9; The building stones of preheating feed bin 1 get into kiln tail 4 through feeding machine 2, feeding tube 3; In kiln body 5, roll, get into calcining zone, arrive kiln hood 7 by electric heater unit 6 calcinings; Be discharged to refrigerating unit 13 again, electric heater unit 6 is communicated with electrical control cubicles 11.
Described refrigerating unit 13 is made up of cooling duct and the blower fan 14 that pipeline opening is set, and kiln body 5 is advanced in the hot blast blowback of cool lime, gets into the heat exchanger tube 1-1 of preheating unit 1 again.
Described carbon dioxide recovery treatment unit 10 is a prior art.
With reference to Fig. 2; Described electric heater unit 6 is fixedly installed on kiln hood 7 places of rotary kiln, is made up of heating rod pipe support 6-1, rack sleeve 6-2, high temperature resistant pallet 6-3, disc holder 6-4, heating rod 6-5, conductor 6-6 and insulation thimble 6-7, and heating rod 6-5 is fixed on the disc holder 6-4; Disc holder 6-4 is fixed on heating rod pipe support 6-1 and the rack sleeve 6-2; A high temperature resistant pallet 6-3 and a disc holder 6-4 who is arranged on kiln hood 7 places are arranged side by side, and conductor 6-6 is connected with external power, and heating rod 6-5 is set with insulation thimble 6-7 near an end of kiln hood 4; The temperature of electric heater unit 6 is adjustable, and top temperature is 1350 ℃.
With reference to Fig. 3, the technical process of a kind of energy-conserving and environment-protective revolution of the present invention electrical kiln lime production line is:
Limestone crushing becomes a certain size particle---→ getting into the preheating feed bin carries out preheating and drying---→ get into the preheating of revolution electrical kiln through automatic emptying machine---→ carry out decomposition reaction at the kiln calcining zone to generate lime and carbonic acid gas---→ lime through the cooling zone cooling-→ the entering feed bin; The carbonic acid gas blowback gets into preheating unit; Preheating Wingdale raw material; From preheating storehouse suction carbon dioxide recovering apparatus, reclaim carbonic acid gas again.
Claims (4)
1. electrical kiln lime production line is turned round in energy-conserving and environment-protective; Comprise the rotary kiln body; It is characterized in that: in the rotary kiln body, be provided with electric heater unit, be outside equipped with lime refrigerating unit, Wingdale preheating unit, carbon dioxide recovering apparatus and cleaning apparatus at rotary kiln, the lime refrigerating unit is communicated with the kiln hood of rotary kiln; The Wingdale preheating unit is communicated with the kiln tail of rotary kiln, and carbon dioxide recovering apparatus and cleaning apparatus are communicated with preheating unit through air extractor.
2. production line according to claim 1; It is characterized in that: described electric heater unit is fixedly installed on the kiln hood place of rotary kiln, is made up of heating rod pipe support, rack sleeve, high temperature resistant pallet, disc holder, heating rod, conductor and insulation thimble, and heating rod is fixed on the disc holder; Disc holder is fixed on heating rod pipe support and the rack sleeve; High temperature resistant pallet is arranged side by side with a disc holder that is arranged on kiln hood, and conductor is connected with external power, and heating rod is set with insulation thimble near an end of kiln hood; The temperature of electric heater unit is adjustable, and top temperature is 1350 ℃.
3. production line according to claim 1 is characterized in that: described refrigerating unit is a long tubular pipe, and pipeline one end is communicated with the kiln body, and the other end links to each other with blower fan.
4. production line according to claim 1; It is characterized in that: described preheating unit is a feed bin, is provided with heat exchanger tube in the storehouse, and heat exchanger tube one end is communicated with the kiln body; The other end is communicated with extraction equipment, and extraction equipment is communicated with cleaning apparatus and carbon dioxide recovery treatment unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101173742A CN102627415A (en) | 2012-04-20 | 2012-04-20 | Energy-saving environmental-friendly lime production line for rotary electrical kiln |
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| CN2012101173742A CN102627415A (en) | 2012-04-20 | 2012-04-20 | Energy-saving environmental-friendly lime production line for rotary electrical kiln |
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| CN102627415A true CN102627415A (en) | 2012-08-08 |
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| CN2012101173742A Pending CN102627415A (en) | 2012-04-20 | 2012-04-20 | Energy-saving environmental-friendly lime production line for rotary electrical kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351104A (en) * | 2013-07-10 | 2013-10-16 | 刘绍海 | Production line for preparing lime with marble thick liquid and powder |
| CN104496206A (en) * | 2014-06-19 | 2015-04-08 | 谢英健 | Method for preparation of high activity lime from calcite and comprehensive application of product |
| CN108675656A (en) * | 2018-07-06 | 2018-10-19 | 唐山市丰南区金泉冶金能源新技术开发有限公司 | A kind of electric burning lime kiln using recycling carbon dioxide power generation |
| CN113336457A (en) * | 2021-07-10 | 2021-09-03 | 阳泉恒跃兴钙业有限公司 | Self-feedback calcination control method and device for lime fired by rotary kiln |
| CN114605092A (en) * | 2022-04-25 | 2022-06-10 | 白银新银鑫工贸有限公司 | Low-carbon energy-saving manufacturing process of calcium oxide and calcium oxide product |
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| CN201031205Y (en) * | 2007-04-25 | 2008-03-05 | 宁夏建筑材料研究院 | Mixed spiral calcining kiln |
| CN102180604A (en) * | 2010-12-15 | 2011-09-14 | 周生献 | Spinning bed equipment and process for producing high-activity lime with spinning bed |
| CN102219402A (en) * | 2011-04-14 | 2011-10-19 | 石家庄市新华工业炉有限公司 | Method and device for calcining materials |
| CN202543076U (en) * | 2012-04-20 | 2012-11-21 | 桂林灵川县金山思达新型材料厂 | Energy-saving environment-friendly production line for rotary electrical kiln lime |
-
2012
- 2012-04-20 CN CN2012101173742A patent/CN102627415A/en active Pending
Patent Citations (4)
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| CN201031205Y (en) * | 2007-04-25 | 2008-03-05 | 宁夏建筑材料研究院 | Mixed spiral calcining kiln |
| CN102180604A (en) * | 2010-12-15 | 2011-09-14 | 周生献 | Spinning bed equipment and process for producing high-activity lime with spinning bed |
| CN102219402A (en) * | 2011-04-14 | 2011-10-19 | 石家庄市新华工业炉有限公司 | Method and device for calcining materials |
| CN202543076U (en) * | 2012-04-20 | 2012-11-21 | 桂林灵川县金山思达新型材料厂 | Energy-saving environment-friendly production line for rotary electrical kiln lime |
Non-Patent Citations (2)
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| 刘文采: "回转窑整体结构与加热方式的探讨", 《磁性材料及器件》, vol. 35, no. 1, 29 February 2004 (2004-02-29), pages 30 - 35 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351104A (en) * | 2013-07-10 | 2013-10-16 | 刘绍海 | Production line for preparing lime with marble thick liquid and powder |
| CN103351104B (en) * | 2013-07-10 | 2015-08-05 | 刘绍海 | Marble slurry, powder prepare lime production line |
| CN104496206A (en) * | 2014-06-19 | 2015-04-08 | 谢英健 | Method for preparation of high activity lime from calcite and comprehensive application of product |
| CN108675656A (en) * | 2018-07-06 | 2018-10-19 | 唐山市丰南区金泉冶金能源新技术开发有限公司 | A kind of electric burning lime kiln using recycling carbon dioxide power generation |
| CN108675656B (en) * | 2018-07-06 | 2023-05-23 | 唐山市丰南区金泉冶金能源新技术开发有限公司 | Electric lime kiln for generating power by utilizing recovered carbon dioxide |
| CN113336457A (en) * | 2021-07-10 | 2021-09-03 | 阳泉恒跃兴钙业有限公司 | Self-feedback calcination control method and device for lime fired by rotary kiln |
| CN114605092A (en) * | 2022-04-25 | 2022-06-10 | 白银新银鑫工贸有限公司 | Low-carbon energy-saving manufacturing process of calcium oxide and calcium oxide product |
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Application publication date: 20120808 |