CN103274413A - Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust - Google Patents
Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust Download PDFInfo
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- CN103274413A CN103274413A CN2013102487440A CN201310248744A CN103274413A CN 103274413 A CN103274413 A CN 103274413A CN 2013102487440 A CN2013102487440 A CN 2013102487440A CN 201310248744 A CN201310248744 A CN 201310248744A CN 103274413 A CN103274413 A CN 103274413A
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- calcium carbide
- dust
- tail gas
- carbide furnace
- furnace tail
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to a method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust. The method comprises the steps of mixing calcium carbide furnace tail gas and dust and coal tar according to weight ratio of 80 to 85 percent : 20 to 15 percent, sufficiently stirring the calcium carbide furnace tail gas and dust and the coal tar, and performing extrusion forming. The method directly utilizes the calcium carbide furnace tail gas and dust to extrude and compound the calcium carbide smelting material, ensures that the calcium carbide furnace tail gas and dust can be sufficiently utilized in the calcium carbide furnace smelting, achieves the purposes of high solid waste use ratio, cost reducing, energy saving and environment protection, and simultaneously is simple in production process, low in technical requirements, small in energy consumption, low in cost, and obvious in economic benefit.
Description
Technical field
The present invention relates to the calcium carbide technical field of smelting, particularly relate to a kind of method of utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding.
Background technology
Calcium carbide is basic Organic Chemicals, and the acetylene that is made by it can replace petroleum product to produce a series of thousands of kinds of organic productss such as acetic acid, vinyl acetate between to for plastic, polyvinyl chloride, polyvinyl alcohol, acetylene carbon black.In national calcium carbide industry, no matter be fully-closed furnace of calcium carbide, internal combustion type closed calcium carbide furnace or open calcium carbide oven, its tail gas amount is all very big, and the dust content height, many calcium carbide factories spend a large amount of manpower and materials on the waste gas dedusting device and produce little effect, and most furnace of calcium carbide dust is severe overweight all.At present, the calcium carbide stove exhaust dust after the sedimentation does not effectively utilize method, generally take landfill earthing treatment process, both wasted resource, easily underground water and environment are polluted again, it is useless admittedly to become unserviceable industry, influences the sustainable and healthy development of calcium carbide industry.
Summary of the invention
Purpose of the present invention just is to overcome the defective of above-mentioned prior art, provide a kind of effectively, to take full advantage of industry solid useless, reduces and pollute, and economize on resources, and technology is simple the method for utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding that cost is low.
The technical scheme of taking for achieving the above object is:
A kind of method of utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding is characterized in that: the calcium carbide stove exhaust dust is mixed with the weight proportion of coal tar according to 80～85%:20～15%, fully stir, extrusion molding gets final product.
Described extrusion molding refers to be squeezed into oval pelletizing with single-lead-screw extruding briquetting machine.
Above-mentioned oval pelletizing is granularity 3cm～5cm pelletizing.
Method of the present invention is directly with the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding; make the calcium carbide stove exhaust dust in furnace of calcium carbide is smelted, to take full advantage of; reach useless admittedly utilization ratio height; reduce cost, economize on resources and protect the purpose of environment; production technique of the present invention is simple simultaneously, and technical requirements is low, and power consumption is few; with low cost, remarkable in economical benefits.
Embodiment
The method of utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding of the present invention, one of raw material that adopts calcium carbide stove exhaust dust is through check analysis, calcium oxide content 37.2%, carbon content 34.1.%, dioxide-containing silica 16%, aluminium sesquioxide 7.1% meet the smelting technology requirement.
The inventive method step is: get 85% calcium carbide stove exhaust dust, 15% coal tar, by mixing with above-mentioned quantitative ratio, join and stir 10min in the agitator kettle, after finishing, stirring opens the agitator kettle discharge port, compound is sent into the single-lead-screw extruding briquetting machine feeding mouth, open the oval pelletizing that single-lead-screw extruding briquetting machine is squeezed into compound granularity 3cm～5cm.
Pelletizing is through chemical examination, and its main content's index is calcium oxide content 37.2%, carbon content 37.3%.This pelletizing and pure white ash, blue charcoal carry out rational proportion by calcium oxide, the carbon element content value of the requirement of calcium carbide smelting technology, smelt directly into stove, meet smelting principle.Through smelting experiment, the working of a furnace is stable in Xinping, Ningxia fine chemistry industry limited-liability company for this product, and product is qualified, proves success fully.
Claims (3)
1. one kind is utilized the calcium carbide stove exhaust dust to push the method for synthesizing the calcium carbide raw materials for metallurgy, it is characterized in that: the calcium carbide stove exhaust dust is mixed with the weight proportion of coal tar according to 80～85%:20～15%, fully stir, extrusion molding gets final product.
2. according to the described method of utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding of claim 1, it is characterized in that: described extrusion molding refers to be squeezed into oval pelletizing with single-lead-screw extruding briquetting machine.
3. according to the described method of utilizing the synthetic calcium carbide raw materials for metallurgy of calcium carbide stove exhaust dust extruding of claim 2, it is characterized in that: above-mentioned oval pelletizing is granularity 3cm～5cm pelletizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102487440A CN103274413A (en) | 2013-06-21 | 2013-06-21 | Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102487440A CN103274413A (en) | 2013-06-21 | 2013-06-21 | Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103274413A true CN103274413A (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102487440A Pending CN103274413A (en) | 2013-06-21 | 2013-06-21 | Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust |
Country Status (1)
| Country | Link |
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| CN (1) | CN103274413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708461A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN105542897A (en) * | 2015-12-10 | 2016-05-04 | 内蒙古工业大学 | RDF prepared from dust in calcium carbide furnace, coal slime and sludge and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB759145A (en) * | 1952-03-29 | 1956-10-17 | Gelsenkirchener Bergwerks Ag | Improvements in or relating to briquetting |
| CN101284666A (en) * | 2008-05-14 | 2008-10-15 | 浙江大学 | Comprehensive utilization system for high temperature furnace gas of sealed calcium carbide furnace |
| CN102249232A (en) * | 2011-05-31 | 2011-11-23 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material by extruding blue coke and lime powder |
| CN102275921A (en) * | 2011-05-31 | 2011-12-14 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder |
-
2013
- 2013-06-21 CN CN2013102487440A patent/CN103274413A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB759145A (en) * | 1952-03-29 | 1956-10-17 | Gelsenkirchener Bergwerks Ag | Improvements in or relating to briquetting |
| CN101284666A (en) * | 2008-05-14 | 2008-10-15 | 浙江大学 | Comprehensive utilization system for high temperature furnace gas of sealed calcium carbide furnace |
| CN102249232A (en) * | 2011-05-31 | 2011-11-23 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material by extruding blue coke and lime powder |
| CN102275921A (en) * | 2011-05-31 | 2011-12-14 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708461A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN103708461B (en) * | 2013-12-25 | 2016-08-24 | 神雾环保技术股份有限公司 | The method preparing calcium carbide |
| CN105542897A (en) * | 2015-12-10 | 2016-05-04 | 内蒙古工业大学 | RDF prepared from dust in calcium carbide furnace, coal slime and sludge and preparation method thereof |
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Application publication date: 20130904 |