CN102275921A - Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder - Google Patents
Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder Download PDFInfo
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- CN102275921A CN102275921A CN2011101436300A CN201110143630A CN102275921A CN 102275921 A CN102275921 A CN 102275921A CN 2011101436300 A CN2011101436300 A CN 2011101436300A CN 201110143630 A CN201110143630 A CN 201110143630A CN 102275921 A CN102275921 A CN 102275921A
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Abstract
The invention relates to a method for synthesizing a calcium carbide smelting raw material from semicoke, calcined coal and lime powder. The method comprises the following steps of mixing well semicoke powder, calcined coal powder, lime powder and middle temperature coal pitch according to a weigh ratio of (28 to 30%): (28 to 30%): (28 to 30%): (10 to 16%), stirring at a constant temperature of 200 to 220 DEG C for 10 to 15 minutes and spreading out to cool in air to obtain pellets. Through the method, semicoke, calcined coal and lime can be utilized fully in calcium carbide smelting under the conditions of low cost and technical content, and purposes of reducing a cost, saving resources and protecting the environment are realized.
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.
Background technology
When forging coal, blue charcoal or lime powder and be used for calcium carbide and smelt, must use hollow electrode to utilize.Because the electrode cost of hollow electrode is more than 3 times of ordinary electrode, cause this technology cost height, technical requirements height in this method, extensive utilization and extention causes and forges coal, blue charcoal and lime powder and become unserviceable industry and give up 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 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, 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, spread out at last, naturally cooling becomes pelletizing to get final product;
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, with blue charcoal, forge and add lime, blue charcoal or forge coal after coal, lime and medium temperature coal pitch are mixed into 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 (granularity is below 0.5mm), 10% 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 transported to the raw material place, spread out and be cooled to the irregular pelletizing that diameter is 0.5～3cm, 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
Ramsbottom carbon powder according to 28% (granularity is below 1mm), 29% forge coal dust end (granularity is below 1mm), 29% lime powder (granularity is below 0.5mm), the mixed of 14% medium temperature coal pitch (melting state) is mixed even, 200 ℃ of constant temperatures stirred 13 minutes down, open the agitator kettle discharge port, compound is transported to the raw material place, spread out and be cooled to the irregular pelletizing that diameter is 0.5～3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted, allocate lime in this raw material according to a certain percentage into, blue charcoal 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 3
Ramsbottom carbon powder according to 29% (granularity is below 1mm), 28% forge coal dust end (granularity is below 1mm), 30% lime powder (granularity is below 0.5mm), the mixed of 13% medium temperature coal pitch (melting state) is mixed even, 200 ℃ of constant temperatures stirred 15 minutes down, open the agitator kettle discharge port, compound is transported to the raw material place, spread out and be cooled to the irregular pelletizing that diameter is 0.5～3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted, allocate lime in this raw material according to a certain percentage into, blue charcoal 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 4
Ramsbottom carbon powder according to 28% (granularity is below 1mm), 28% forge coal dust end (granularity is below 1mm), 28% lime powder (granularity is below 0.5mm), the mixed of 16% medium temperature coal pitch (melting state) is mixed even, 200 ℃ of constant temperatures stirred 10 minutes down, open the agitator kettle discharge port, compound is transported to the raw material place, spread out and be cooled to the irregular pelletizing that diameter is 0.5～3cm, behind the naturally cooling, can become the pellet feed that calcium carbide is smelted, allocate lime in this raw material according to a certain percentage into, blue charcoal 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.
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, 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, spread out at last, naturally cooling becomes pelletizing to get final product.
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, 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, 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 |
|---|---|---|---|
| CN2011101436300A CN102275921A (en) | 2011-05-31 | 2011-05-31 | Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101436300A CN102275921A (en) | 2011-05-31 | 2011-05-31 | Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder |
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| CN102275921A true CN102275921A (en) | 2011-12-14 |
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| CN2011101436300A Pending CN102275921A (en) | 2011-05-31 | 2011-05-31 | Method for synthesizing calcium carbide smelting raw material from semicoke, calcined coal and lime powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274413A (en) * | 2013-06-21 | 2013-09-04 | 宁夏兴平精细化工股份有限公司 | Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696010A (en) * | 2009-04-16 | 2010-04-21 | 国科瑞德(北京)能源科技发展有限公司 | Clustered-cell type calcium carbide furnace burden |
-
2011
- 2011-05-31 CN CN2011101436300A patent/CN102275921A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696010A (en) * | 2009-04-16 | 2010-04-21 | 国科瑞德(北京)能源科技发展有限公司 | Clustered-cell type calcium carbide furnace burden |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274413A (en) * | 2013-06-21 | 2013-09-04 | 宁夏兴平精细化工股份有限公司 | Method for extruding and compounding calcium carbide smelting material through calcium carbide furnace tail gas and dust |
| 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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Application publication date: 20111214 |