CN106746766B - The method of small grain size limestone calcination production quick lime - Google Patents
The method of small grain size limestone calcination production quick lime Download PDFInfo
- Publication number
- CN106746766B CN106746766B CN201710009298.6A CN201710009298A CN106746766B CN 106746766 B CN106746766 B CN 106746766B CN 201710009298 A CN201710009298 A CN 201710009298A CN 106746766 B CN106746766 B CN 106746766B
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- CN
- China
- Prior art keywords
- quick lime
- grain size
- small grain
- granularity
- calcium carbide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
Abstract
The invention discloses the method for small grain size limestone calcination production quick lime, quick lime production capacity is 14-14.5t/h, and limestone granularity is controlled in 30-60mm.The present invention has the advantages that realizing that small grain size lime stone is normally calcined in limekiln, makes to account for 80% 40mm is below into furnace quick lime granularity, quick lime granularity is effectively reduced, reduce quick lime raw burn rate, the operation conditions of furnace of calcium carbide is made more to step to a new level；Reduce the power consumption during production calcium carbide.
Description
Technical field
The present invention relates to the methods of limestone calcination production quick lime, produce more particularly to small grain size limestone calcination
The method of lime.
Background technique
Calcium carbide production is to mix quick lime and carbon materials according to a certain percentage, produces calcium carbide by pyroreaction.Raw stone
Important source material of the ash as calcium carbide production, the granularity of quick lime decide the operation conditions of furnace of calcium carbide.
Currently, the limestone granularity for being used to calcine obtained quick lime is 40-70mm, limestone granularity is big, leads to quick lime
After raw burn rate is high, and then increases the power consumption of furnace of calcium carbide, and the biggish quick lime of granularity enters furnace of calcium carbide, influences furnace of calcium carbide and stablize
Operation.
In order to reduce quick lime granularity, crusher is increased in limekiln finished bin lower part, control quick lime granularity is less than
40mm has found in crusher use process, although quick lime granularity is controlled, but produces a large amount of powder, nothing
Furnace of calcium carbide consumption is increased in shape, increases calcium carbide production cost.It needs to design the new reduction of one kind thus and enters furnace quick lime grain
The method of degree.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of small grain size limestone calcination production quick lime, realize small grain size stone
Lime stone is normally calcined in limekiln, reduces quick lime raw burn rate, and then reduces the power consumption during production calcium carbide, is improved simultaneously
Calcium carbide gas forming amount.
The purpose of the present invention is implemented by following technical solution: the method that small grain size limestone calcination produces quick lime, raw stone
Grey production capacity is 14-14.5t/h, and in 30-60mm, main induced draft fan power is 500KW, main induced draft fan revolving speed control for limestone granularity control
System is controlled in 1420-1460r/min, combustion gas intake in 5800-6500m3/ h, combustion air intake are controlled in 17400-
19500m3/ h, kiln discharge number control per hour is at 40-50 times.By the adjustment of the above parameter, increase material gas permeability in kiln,
Avoid material part dross, the normal production of guarantee in limekiln in calcination process.
Cooling wind blower uses Frequency Converter Control, frequency converter frequency 40-46Hz under limekiln.According to entering kiln lime stone
Granularity adjusts frequency converter frequency, so that the air output of cooling wind blower and lower suction beam perfect cooperation, can efficiently use postposition
Burning zone lays the foundation to further decrease limekiln raw burn rate, stablizing limekiln operation conditions.
The present invention has the advantages that (1) realizes that small grain size lime stone is normally calcined in limekiln, make into furnace quick lime grain
Degree accounts for 80% 40mm is below, and quick lime granularity is effectively reduced, and reduces quick lime raw burn rate, makes the operation conditions of furnace of calcium carbide
More step to a new level；(2) quick lime raw burn rate is reduced to 5-6% by 7-8%, reduces the power consumption during production calcium carbide, production 1
Ton calcium carbide reduces 47 degree of electricity consumption, daily 1800 tons of calcium carbide of production, reduces by 50,000 yuan of electric cost or so daily；Lime stone per ton
The cost of raw material reduces by 8 yuan；Calcium carbide gas forming amount increases to 292L/kg by original 290L/kg.
Specific embodiment
The present invention is described in detail combined with specific embodiments below, but following embodiment is not constituted to of the invention
Limitation.
Embodiment 1: the method that small grain size limestone calcination produces quick lime, using twin beams shaft furnace limekiln lime burning
Stone, quick lime production capacity are 14t/h, and in 30-60mm, main induced draft fan power is 500KW, main induced draft fan revolving speed for limestone granularity control
Control is controlled in 1420r/min, combustion gas intake in 5800m3/ h, combustion air intake are controlled in 17400m3/ h, goes out per hour
Kiln number is 40 times.Cooling wind blower uses Frequency Converter Control, frequency converter frequency 40Hz under limekiln.
Embodiment 2: the method that small grain size limestone calcination produces quick lime, using twin beams shaft furnace limekiln lime burning
Stone, quick lime production capacity are 14.2t/h, and in 30-60mm, main induced draft fan power is 500KW for limestone granularity control, and main induced draft fan turns
Speed control is controlled in 1460r/min, combustion gas intake in 6500m3/ h, combustion air intake are controlled in 19500m3/ h, per hour
Kiln discharge number is controlled at 45 times.Cooling wind blower uses Frequency Converter Control, frequency converter frequency 43Hz under limekiln.
Embodiment 3: the method that small grain size limestone calcination produces quick lime, using twin beams shaft furnace limekiln lime burning
Stone, quick lime production capacity are 14.5t/h, and in 30-60mm, main induced draft fan power is 500KW for limestone granularity control, and main induced draft fan turns
Speed control is controlled in 1440r/min, combustion gas intake in 6200m3/ h, combustion air intake are controlled in 18500m3/ h, per hour
Kiln discharge number is controlled at 50 times.Cooling wind blower uses Frequency Converter Control, frequency converter frequency 46Hz under limekiln.
Claims (2)
1. the method for small grain size limestone calcination production quick lime, which is characterized in that the quick lime for calcium carbide raw materials for production produces
It can be 14-14.5t/h, in 30-60mm, quick lime granularity accounts for 80% 40mm is below for limestone granularity control；Main air inducing
Machine power is 500KW, and the control of main induced draft fan revolving speed is controlled in 1420-1460r/min, combustion gas intake in 5800-6500m3/ h,
Combustion air intake is controlled in 17400-19500m3/ h, kiln discharge number control per hour is at 40-50 times.
2. the method for small grain size limestone calcination production quick lime according to claim 1, which is characterized in that limekiln
Lower cooling wind blower uses Frequency Converter Control, frequency converter frequency 40-46Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009298.6A CN106746766B (en) | 2017-01-06 | 2017-01-06 | The method of small grain size limestone calcination production quick lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009298.6A CN106746766B (en) | 2017-01-06 | 2017-01-06 | The method of small grain size limestone calcination production quick lime |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106746766A CN106746766A (en) | 2017-05-31 |
| CN106746766B true CN106746766B (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710009298.6A Active CN106746766B (en) | 2017-01-06 | 2017-01-06 | The method of small grain size limestone calcination production quick lime |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170643A (en) * | 2020-01-07 | 2020-05-19 | 湖州浙宝钙业科技股份有限公司 | Glass fiber reinforcing agent and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001348251A (en) * | 2000-05-31 | 2001-12-18 | Dowa Karufain:Kk | Method for firing limestone type to effectively utilize resource |
| CN102040344A (en) * | 2009-10-12 | 2011-05-04 | 河南凤宝钢铁有限公司 | Process for calcining small-granularity dolomite of 20-40 millimeters |
| CN102815876A (en) * | 2012-08-30 | 2012-12-12 | 张金永 | Method for preparing quicklime by continuously calcining limestone in shaft kiln |
| CN105271841A (en) * | 2015-04-10 | 2016-01-27 | 李正福 | Rotary kiln device and method for constant temperature indirect calcination of limestone |
-
2017
- 2017-01-06 CN CN201710009298.6A patent/CN106746766B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001348251A (en) * | 2000-05-31 | 2001-12-18 | Dowa Karufain:Kk | Method for firing limestone type to effectively utilize resource |
| CN102040344A (en) * | 2009-10-12 | 2011-05-04 | 河南凤宝钢铁有限公司 | Process for calcining small-granularity dolomite of 20-40 millimeters |
| CN102815876A (en) * | 2012-08-30 | 2012-12-12 | 张金永 | Method for preparing quicklime by continuously calcining limestone in shaft kiln |
| CN105271841A (en) * | 2015-04-10 | 2016-01-27 | 李正福 | Rotary kiln device and method for constant temperature indirect calcination of limestone |
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| CN106746766A (en) | 2017-05-31 |
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Effective date of registration: 20181225 Address after: 750336 Bali Miao Zhongyan Science and Technology Building, Alxa League Economic Development Zone, Inner Mongolia Autonomous Region Applicant after: China National Salt Industry Corporation Jilantai Chlorine and Alkali Chemical Co., Ltd. Address before: 750336 Bali Miao Zhongyan Science and Technology Building, Alxa League Economic Development Zone, Inner Mongolia Autonomous Region Applicant before: CHINA NATIONAL SALT INDUSTRY CORPORATION JILANTAI SALT CHEMICAL GROUP |
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