CN101343147A - Method for smelting electric melting magnesia with raw magnesite raw ore powder - Google Patents
Method for smelting electric melting magnesia with raw magnesite raw ore powder Download PDFInfo
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- CN101343147A CN101343147A CNA2007100120412A CN200710012041A CN101343147A CN 101343147 A CN101343147 A CN 101343147A CN A2007100120412 A CNA2007100120412 A CN A2007100120412A CN 200710012041 A CN200710012041 A CN 200710012041A CN 101343147 A CN101343147 A CN 101343147A
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- magnesite
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Abstract
The invention relates to a method of smelting fused magnesia, which adopts magnesite raw ore powder to smelt the fused magnesia. The method solves the problems that electricity consumption is great when the former magnesite is used to smelt the fused magnesia and the magnesite accessory ore and the magnesite tailing ore are wasted. The smelting method is as follows: (1) magnesite raw ore powder whose grain size x is more than 0 mm and less than or equal to 5 mm is processed by a grinder into the magnesite raw ore powder whose grain size x is more than 0 mm and less than or equal to 3 mm, and one ton of the processed magnesite raw ore powder is taken; (2) 35 kg of binder is added into the one ton of the processed magnesite raw ore powder, and the processed magnesite raw ore powder is mixed by a mixer, then is pressurized and molded into magnesite grains; (3) the obtained magnesite grains are processed into magnesite blocks whose grain size x is more than 5 mm and less than or equal to 50 mm, and then the magnesite blocks are put into an electric melting furnace to be smelted. The method adopts the magnesite accessory ore powder and the magnesite tailing ore powder to prepare the fused magnesia; and the magnesite raw ore is processed into small grains and powder, and the structure of the magnesite raw ore is changed, so the magnesite raw ore is more easily decomposed and melted when smelted in the electric melting furnace. When the smelting method is adopted to produce the fused magnesia, the electricity consumption is decreased by 4 percent to 5 percent for per ton of produced fused magnesia, the electrode consumption is decreased by 5 percent to 10 percent, and the yield is increased by 7 percent to 8 percent per shift with advantages of energy saving and environmental protection.
Description
Technical field:
The present invention relates to a kind of preparation method of electrosmelted magnesite clinker.
Background technology:
Producing electrosmelted magnesite clinker at present is the particle that raw magnesite raw ore stone is processed into 5～40mm granularity, smelt production with electric smelter again, because wagnerite place of production difference, degree of decomposition is also variant, the electric smelter that general employing is 1200 kilovolt-amperes is smelted when producing electrosmelted magnesite clinker, 1 ton of electrosmelted magnesite clinker power consumption of every production, 3700～3800 degree, sacrificial electrode 65kg can produce 7～8 tons of electrosmelted magnesite clinkers in 10 hours.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the invention provides a kind of method of utilizing smelting electric melting magnesia with raw magnesite raw ore powder, adopt this method to prepare electrosmelted magnesite clinker and cut down the consumption of energy, and effectively utilized waste in the past, energy-conserving and environment-protective.With the method for smelting electric melting magnesia with raw magnesite raw ore powder, its step is as follows:
(1) with granularity be the raw magnesite raw ore powder of 0＜x≤5mm to be processed into granularity with pulverizer be 0＜x≤3mm, get 1 ton of raw magnesite raw ore powder after the processing;
(2) add 35 kilograms wedding agent, with stirrer mixing back pressurization, moulding, wedding agent is that viscosity is the paper pulp of 145mPas;
(3) the wagnerite grain that obtains after the extrusion forming is processed into the magnesite stone that granularity is 5＜x≤50mm, drops into again and smelt into electrosmelted magnesite clinker in the electric smelter.
Beneficial effect of the present invention: the present invention adopts that the giobertite after the exploitation processing is paid the ore deposit, mine tailing is reprocessed and smelted into electrosmelted magnesite clinker, effectively utilized waste, because raw magnesite raw ore is processed into small-particle and powdery, structurally change to some extent, when in electric smelter, smelting, easier decomposition, fusing, use this smelting process to produce electrosmelted magnesite clinker, current consumption per ton is 3500～3600 degree, uses electrode 60kg, can produce 7.5～8.5 tons of electrosmelted magnesite clinkers in 10 hours.The present invention has the advantage of energy-conserving and environment-protective.
Embodiment:
With the method for smelting electric melting magnesia with raw magnesite raw ore powder, step is as follows:
(1) be that the raw magnesite raw ore powder of 0＜x≤5mm is processed into 0＜x≤3mm with pulverizer with granularity, getting granularity is the raw magnesite raw ore powder 1000kg of 0＜x≤3mm;
(2) wedding agent of adding 35kg, wedding agent is a paper pulp, with stirrer mixing back pressurization, moulding; Wherein paper pulp adopts the general paper pulp of fire-resistant industry brickmaking technology, and this paper pulp viscosity in the time of 20 ℃ is 145mPas, plays keying action.
(3) the wagnerite grain that obtains after the extrusion forming is processed into the magnesite stone that granularity is 5＜x≤50mm, drops into again and smelt into electrosmelted magnesite clinker in the electric smelter.
Claims (1)
1, with the method for smelting electric melting magnesia with raw magnesite raw ore powder, it is characterized in that step is as follows:
(1) with granularity be the raw magnesite raw ore powder of 0＜x≤5mm to be processed into granularity with pulverizer be 0＜x≤3mm, get 1 ton of raw magnesite raw ore powder after the processing;
(2) add 35 kilograms wedding agent, with stirrer mixing back pressurization, moulding, wedding agent is that viscosity is the paper pulp of 145mPas;
(3) the wagnerite grain that obtains after the extrusion forming is processed into the magnesite stone that granularity is 5＜x≤50mm, drops into again and smelt into electrosmelted magnesite clinker in the electric smelter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100120412A CN101343147A (en) | 2007-07-11 | 2007-07-11 | Method for smelting electric melting magnesia with raw magnesite raw ore powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100120412A CN101343147A (en) | 2007-07-11 | 2007-07-11 | Method for smelting electric melting magnesia with raw magnesite raw ore powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101343147A true CN101343147A (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100120412A Pending CN101343147A (en) | 2007-07-11 | 2007-07-11 | Method for smelting electric melting magnesia with raw magnesite raw ore powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101343147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002885A (en) * | 2019-04-18 | 2019-07-12 | 辽宁科技大学 | A method of the fused magnesite of zirconium spinel containing magnalium is prepared with electric arc furnaces |
| CN110040987A (en) * | 2019-04-16 | 2019-07-23 | 大连地拓环境科技有限公司 | A kind of method that magnesite flotation tailing prepares caustic-calcined magnesite |
-
2007
- 2007-07-11 CN CNA2007100120412A patent/CN101343147A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040987A (en) * | 2019-04-16 | 2019-07-23 | 大连地拓环境科技有限公司 | A kind of method that magnesite flotation tailing prepares caustic-calcined magnesite |
| CN110040987B (en) * | 2019-04-16 | 2021-10-26 | 大连地拓环境科技有限公司 | Method for preparing light-burned magnesite from magnesite flotation tailings |
| CN110002885A (en) * | 2019-04-18 | 2019-07-12 | 辽宁科技大学 | A method of the fused magnesite of zirconium spinel containing magnalium is prepared with electric arc furnaces |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090114 |