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Production method used for increasing 98% electrically fused magnesium oxide ton yield

A technology of fused magnesia and production method, which is applied in the field of fused magnesia, can solve the problems of low 98% content of fused magnesia, achieve the effects of reducing production costs, improving the performance of leakage current, and improving profitability

Inactive Publication Date: 2019-08-09
上海实业振泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to overcome the defect of low 98% content of fused magnesia in the prior art, and provide a production method for increasing the tonnage of 98% fused magnesia content

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  • Production method used for increasing 98% electrically fused magnesium oxide ton yield
  • Production method used for increasing 98% electrically fused magnesium oxide ton yield

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Embodiment 1

[0022] see figure 1 , the present invention provides a technical solution: a production method for increasing the content of fused magnesia by 98% ton, comprising the following steps:

[0023] Step 1: crush magnesite ore as the basic raw material of fused magnesia in a crusher to make a 30mm block for later use. The raw material of fused magnesia is selected from magnesite ore with a magnesia content ≥ 46% (wt%) and Graphite electrode with low iron content, magnesite ore with magnesium oxide content ≥ 46% (wt%) and content in 97% (wt%) and graphite electrode weight ratio composition is: when magnesite ore is selected for use in 30 tons, weigh the content 97% fused magnesia is 80kg, graphite electrode is 20k;

[0024] Step 2: Break the fused magnesia and graphite electrodes with a content of 97% (wt%) in a crusher respectively to make small pieces between 20mm. The crushers in step 1 and step 2 are all jaw crushers machine;

[0025] Step 3: Quantitatively weigh step 2 for st...

Embodiment 2

[0031] see figure 1 , the present invention provides a technical solution: a production method for increasing the content of fused magnesia by 98% ton, comprising the following steps:

[0032] Step 1: crushing magnesite ore as the basic raw material of fused magnesia in a crusher to make a 60mm block for later use, the raw material of fused magnesia is magnesite ore with a magnesium oxide content ≥ 46% (wt%) and Graphite electrode with low iron content, magnesite ore with magnesium oxide content ≥ 46% (wt%) and content in 97% (wt%) and graphite electrode weight ratio composition is: when magnesite ore is selected for use in 30 tons, weigh the content 97% fused magnesia is 140kg and graphite electrode is 40kg;

[0033] Step 2: Break the fused magnesia and graphite electrodes with a content of 97% (wt%) in a crusher respectively to make small pieces between 40mm. The crushers in step 1 and step 2 are all jaw crushers machine;

[0034] Step 3: Quantitatively weigh step 2 for s...

Embodiment 3

[0040] see figure 1 , the present invention provides a technical solution: a production method for increasing the content of fused magnesia by 98% ton, comprising the following steps:

[0041] Step 1: crush magnesite ore as the basic raw material of fused magnesia in a crusher to make 80mm block material for later use. Graphite electrode with low iron content, magnesite ore with magnesium oxide content ≥ 46% (wt%) and content in 97% (wt%) and graphite electrode weight ratio composition is: when magnesite ore is selected for use in 30 tons, weigh the content 97% fused magnesia is 200kg and graphite electrode is 50kg;

[0042] Step 2: Break the fused magnesia and graphite electrodes with a content of 97% (wt%) in a crusher respectively to make small pieces between 50mm in size. Both the crushers in step 1 and step 2 adopt jaw crusher machine;

[0043] Step 3: Quantitatively weigh step 2 for standby;

[0044] Step 4: Prepare the cylinder in advance before production, put the cy...

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Abstract

The invention discloses a production method used for increasing 98% electrically fused magnesium oxide ton yield. According to the production method, in melting process of electrically fused magnesiumoxide raw material, 97% electrically fused magnesium oxide small particles and crushed graphite electrode are added to improve the purity of electrically fused magnesium oxide in melting process, qualified 98% electrically fused magnesium oxide is selected, so that ton yield is increased greatly; the selected 98% electrically fused magnesium oxide is subjected to crushing at the same time, so that leakage current performance is improved. The 98% electrically fused magnesium oxide ton yield is increased, so that production cost is reduced correspondingly, and enterprise profit is increased.

Description

technical field [0001] The invention relates to the technical field of fused magnesia, in particular to a production method for increasing the content of fused magnesia by 98% ton. Background technique [0002] Magnesium oxide is an oxide of magnesium, an ionic compound, and is a white solid at room temperature. Magnesium oxide exists in nature in the form of periclase and is the raw material for magnesium smelting. Magnesium oxide has high fire-resistant and insulating properties. It can be transformed into crystals by burning at a high temperature above 1000°C, and it will become dead-burned magnesia (that is, the so-called magnesia) or sintered magnesia when it rises to 1500-2000°C. Fused magnesia is a finished product that uses high-purity magnesia as raw material and undergoes electromelting treatment. At present, 98% of the whole smelting lump of fused magnesia is produced at about 35%. How to increase the 98% (wt%) content of fused magnesia is a key point for enterp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10C04B2/00
CPCC04B2/102C04B2/00
Inventor 金宏伟宗俊庄伟兵潘文斌刘荣栋
Owner 上海实业振泰化工有限公司