CN102249233A - Process for synthesizing calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder - Google Patents
Process for synthesizing calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder Download PDFInfo
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- CN102249233A CN102249233A CN2011101436315A CN201110143631A CN102249233A CN 102249233 A CN102249233 A CN 102249233A CN 2011101436315 A CN2011101436315 A CN 2011101436315A CN 201110143631 A CN201110143631 A CN 201110143631A CN 102249233 A CN102249233 A CN 102249233A
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- calcium carbide
- lime powder
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Abstract
The invention relates to a process for synthesizing a calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder. The process comprises the following steps: uniformly mixing semi-coke powder, calcined coal powder, lime powder and mesothermal coal tar pitch according to a weight ratio of 28-30%:28-30%:28-30%:16-10%; stirring the mixture for 10 to 15 minutes at a constant temperature of 200 DEG C to 220 DEG C; extruding the mixture into balls with a mixture extrusion moulding machine; cooling the balls to obtain the calcium carbide smelting raw material. The invention enables semi-coke, calcined coal and lime to be fully utilized in calcium carbide smelting under the conditions of low cost and low technical requirements, thereby achieving the goals of reducing cost, saving resources and protecting environment.
Description
Technical field
The present invention relates to the calcium carbide technical field of smelting, the method that particularly relates to the blue charcoal of a kind of usefulness, forges coal and the synthetic calcium carbide raw materials for metallurgy of lime powder extruding.
Background technology
When forging coal, blue charcoal or lime powder and be used for calcium carbide and smelt, must use hollow electrode to utilize.This method cost height, technical requirements height, extensive utilization and extention causes and forges coal, blue charcoal and lime powder to become unserviceable industry useless admittedly.
Summary of the invention
Purpose of the present invention just is to overcome the defective of above-mentioned prior art, and the blue charcoal of usefulness that a kind of cost is low, technical requirements is low, the method for forging coal and the synthetic calcium carbide raw materials for metallurgy of lime powder extruding are provided.
For realizing that the technical solution used in the present invention is:
The blue charcoal of a kind of usefulness, the method for forging coal and the synthetic calcium carbide raw materials for metallurgy of lime powder extruding, its processing step is: with Ramsbottom carbon powder, forge coal dust end, lime powder and medium temperature coal pitch and mix according to the weight proportion of 28～30%:28～30%:28～30%:10～16%, under 200 ℃～220 ℃ constant temperatures, stirred 10～15 minutes then, be squeezed into pelletizing with the compound single-lead-screw extruding briquetting machine at last, behind the naturally cooling;
The described Ramsbottom carbon powder and the granularity of forging the coal dust end are below 1mm, and the granularity of lime powder is below 0.5mm;
Described mid-temperature pitch coal is a melting state when mixing;
Described pelletizing is that diameter is the irregular pelletizing of 0.5～3cm.
The blue charcoal of usefulness of the present invention, the method for forging coal and the synthetic calcium carbide raw materials for metallurgy of lime powder extruding, with blue charcoal, forge coal, lime and add lime, blue charcoal or forge coal after the medium temperature coal pitch extrusion becomes pellet feed, make it to reach calcium carbide and smelt to participate in directly behind the needed carbon and smelt reaction.This method can make blue charcoal, forges coal, lime under situation with low cost, that technical requirements is not high, can in calcium carbide is smelted, make full use of, reach the purpose that reduces cost, economizes on resources and protect environment.Through smelting experiment, the working of a furnace is stable in level land, Pingluo County, Ningxia chemical industry company limited in the present invention, and product is qualified, and is with low cost, proves success fully.
Embodiment
Embodiment 1
Get 30% Ramsbottom carbon powder (granularity is below 1mm), 30% forge coal dust end (granularity is below 1mm), 30% lime powder size is below 0.5mm, 10% fragment medium temperature coal pitch (melting state), mix even by above quantitative ratio mixing, join in 200 ℃ the constant temperature agitator kettle and stirred 15 minutes, open the agitator kettle discharge port, compound is sent into the single-lead-screw extruding briquetting machine feeding mouth, open the irregular pelletizing that single-lead-screw extruding briquetting machine is squeezed into compound diameter 0.5cm～3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted.(through the chemical examination pelletizing, its main content's index is a fixed carbon 63% to this raw material; Calcium oxide 24%; Hydrocarbon polymer 3%; Ash content 8%; Volatile matter 2%.) allocate lime, blue charcoal according to a certain percentage into or forge coal, can go into stove and smelt calcium carbide, reach carbon and calcium oxide participation smelting reaction that calcium carbide is smelted to be needed.
Embodiment 2
Get 28% Ramsbottom carbon powder (granularity is below 1mm), 29% forge coal dust end (granularity is below 1mm), 29% lime powder size is below 0.5mm, 14% fragment medium temperature coal pitch (melting state), mix even by above quantitative ratio mixing, join in 200 ℃ the constant temperature agitator kettle and stirred 15 minutes, open the agitator kettle discharge port, compound is sent into the single-lead-screw extruding briquetting machine feeding mouth, open the irregular pelletizing that single-lead-screw extruding briquetting machine is squeezed into compound diameter 0.5cm-3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted.This raw material is allocated lime, blue charcoal according to a certain percentage into or is forged coal, can go into stove and smelt calcium carbide, reaches carbon and calcium oxide participation smelting reaction that calcium carbide is smelted to be needed.
Embodiment 3
Get 29% Ramsbottom carbon powder (granularity is below 1mm), 28% forge coal dust end (granularity is below 1mm), 30% lime powder size is below 0.5mm, 13% fragment medium temperature coal pitch (melting state), mix even by above quantitative ratio mixing, join in 200 ℃ the constant temperature agitator kettle and stirred 15 minutes, open the agitator kettle discharge port, compound is sent into the single-lead-screw extruding briquetting machine feeding mouth, open the irregular pelletizing that single-lead-screw extruding briquetting machine is squeezed into compound diameter 0.5cm-3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted.This raw material is allocated lime, blue charcoal according to a certain percentage into or is forged coal, can go into stove and smelt calcium carbide, reaches carbon and calcium oxide participation smelting reaction that calcium carbide is smelted to be needed.
Embodiment 4
Get 28% Ramsbottom carbon powder (granularity is below 1mm), 28% forge coal dust end (granularity is below 1mm), 28% lime powder size is below 0.5mm, 16% fragment medium temperature coal pitch (melting state), mix even by above quantitative ratio mixing, join in 200 ℃ the constant temperature agitator kettle and stirred 15 minutes, open the agitator kettle discharge port, compound is sent into the single-lead-screw extruding briquetting machine feeding mouth, open the irregular pelletizing that single-lead-screw extruding briquetting machine is squeezed into compound diameter 0.5cm-3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted.This raw material is allocated lime, blue charcoal according to a certain percentage into or is forged coal, can go into stove and smelt calcium carbide, reaches carbon and calcium oxide participation smelting reaction that calcium carbide is smelted to be needed.
Claims (4)
1. one kind with blue charcoal, the method for forging the synthetic calcium carbide raw materials for metallurgy of coal and lime powder extruding, its processing step is: with Ramsbottom carbon powder, forge coal dust end, lime powder and medium temperature coal pitch and mix according to the weight proportion of 28～30%:28～30%:28～30%:10～16%, under 200 ℃～220 ℃ constant temperatures, stirred 10～15 minutes then, be squeezed into pelletizing with the compound single-lead-screw extruding briquetting machine at last, behind the naturally cooling.
2. according to the blue charcoal of the described usefulness of claim 1, the method for forging the synthetic calcium carbide raw materials for metallurgy of coal and lime powder extruding, it is characterized in that: the described Ramsbottom carbon powder and the granularity of forging the coal dust end are below 1mm, and the granularity of lime powder is below 0.5mm.
3. according to the blue charcoal of the described usefulness of claim 1, the method for forging the synthetic calcium carbide raw materials for metallurgy of coal and lime powder extruding, it is characterized in that: described mid-temperature pitch coal is a melting state when mixing.
4. according to the blue charcoal of the described usefulness of claim 1, the method for forging the synthetic calcium carbide raw materials for metallurgy of coal and lime powder extruding, it is characterized in that: described pelletizing is that diameter is the irregular pelletizing of 0.5～3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101436315A CN102249233B (en) | 2011-05-31 | 2011-05-31 | Process for synthesizing calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101436315A CN102249233B (en) | 2011-05-31 | 2011-05-31 | Process for synthesizing calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder |
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| Publication Number | Publication Date |
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| CN102249233A true CN102249233A (en) | 2011-11-23 |
| CN102249233B CN102249233B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101436315A Expired - Fee Related CN102249233B (en) | 2011-05-31 | 2011-05-31 | Process for synthesizing calcium carbide smelting raw material by extruding semi-coke, calcined coal and lime powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010627A (en) * | 2017-04-11 | 2017-08-04 | 北京柯林斯达科技发展有限公司 | A kind of method that calcium carbide furnace gas dedusting ash, semi-coke end and pulverized limestone recycle production pelletizing carbide raw material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822837A (en) * | 1956-02-06 | 1959-11-04 | Union Carbide Corp | Compacts of finely divided material and method of forming same |
| CN101327928A (en) * | 2008-08-01 | 2008-12-24 | 北京化工大学 | Calcium carbide production method |
| CN101708998A (en) * | 2009-11-30 | 2010-05-19 | 张至德 | Method for preparing briquetting furnace burden fro calcium carbide production from hydrated lime powder and coking coal powder |
-
2011
- 2011-05-31 CN CN2011101436315A patent/CN102249233B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822837A (en) * | 1956-02-06 | 1959-11-04 | Union Carbide Corp | Compacts of finely divided material and method of forming same |
| CN101327928A (en) * | 2008-08-01 | 2008-12-24 | 北京化工大学 | Calcium carbide production method |
| CN101708998A (en) * | 2009-11-30 | 2010-05-19 | 张至德 | Method for preparing briquetting furnace burden fro calcium carbide production from hydrated lime powder and coking coal powder |
Non-Patent Citations (2)
| Title |
|---|
| 《化工技术经济》 20041231 林金元 兰炭在电石生产中的应用 23-25 1-4 第22卷, 第12期 * |
| 《北京科技大学学报》 20041231 金祖权等 新型电石成型原料研究 637-640 1-4 第26卷, 第6期 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010627A (en) * | 2017-04-11 | 2017-08-04 | 北京柯林斯达科技发展有限公司 | A kind of method that calcium carbide furnace gas dedusting ash, semi-coke end and pulverized limestone recycle production pelletizing carbide raw material |
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| Publication number | Publication date |
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| CN102249233B (en) | 2012-08-22 |
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Granted publication date: 20120822 Termination date: 20140531 |