Production apparatus for producing high-grade fused magnesite from tailings

A production device, fused magnesium technology, applied in the direction of magnesium hydroxide, sustainable manufacturing/processing, chemical industry, etc., can solve the problem of no special grade ore, and achieve the effect of increasing the rate of high-quality products and increasing the yield of products

Pending Publication Date: 2017-11-21
LIAONING DONGHE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current high-grade magnesite resources are less and less, and there are almost no super-grade ores

Method used

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  • Production apparatus for producing high-grade fused magnesite from tailings
  • Production apparatus for producing high-grade fused magnesite from tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A production process of a production device for producing high-grade fused magnesium from tailings is completed according to the following steps:

[0020] 1) Feed the concentrated ore powder after flotation of magnesite tailings into the briquetting machine for briquetting and then send it into the light-fired kiln for light-burning at 650°C, and light-burned magnesium oxide powder after rolling;

[0021] 2) Screen the light-burned magnesia powder, finely select the skin sand and under-fired products, and then send them to the mixing batcher to mix and proportion with the concentrate powder and additives after flotation of magnesite tailings, lightly burn and oxidize The ratio of magnesium powder and magnesite tailings flotation concentrate powder and additives is 6:2:0.3, and then sent to the high-strength extrusion ball machine for briquetting to make concentrate balls, and then sent to Inside the fused magnesium electric arc furnace;

[0022] 3) The fused magnesia p...

Embodiment 2

[0026] A production process of a production device for producing high-grade fused magnesium from tailings is completed according to the following steps:

[0027] 1) Feed the concentrated ore powder after flotation of magnesite tailings into the briquetting machine and then into the light-fired kiln at 600°C for light-burning. After rolling, light-burned magnesium oxide powder is obtained;

[0028] 2) Screen the light-burned magnesia powder, finely select the skin sand and under-fired products, and then send them to the mixing batcher to mix and proportion with the concentrate powder and additives after flotation of magnesite tailings, lightly burn and oxidize The ratio of magnesium powder and magnesite tailings flotation concentrate powder and additives is 7:1.5:0.2, and then sent to the high-strength extrusion ball machine for briquetting to make concentrate balls, and then sent to Inside the fused magnesium electric arc furnace;

[0029] 3) The fused magnesia produced by th...

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Abstract

The invention relates to a production apparatus for producing high-grade fused magnesite from tailings, comprising a ball press, a light calcining kiln, a rolling machine, a screening machine, a mixing machine, a high-strength ball press, and a fused magnesite electric arc furnace; a furnace-back treatment device is arranged at an outlet of the fused magnesite electric arc furnace and includes a conveyer belt, a spraying device, a washing device and a precipitating device, the spraying device is arranged above the conveyer belt, the washing device is arranged at a discharge port of the conveyer belt, and the precipitating device is connected with the washing device through a water pipe. The production apparatus produces high-grade fused magnesite from magnesite tailings, the yield and high-quality product rate of the high-grade fused magnesite are increased, and the yield of fused magnesia with MgO content of 97.5% and above may reach 70% and above. Low-grade magnesite resources are effectively utilized, and the objective of environment protection and energy conservation is achieved.

Description

technical field [0001] The invention relates to equipment for producing refractory materials, in particular to a production device for producing high-grade fused magnesium from tailings. Background technique [0002] The traditional fused magnesia smelting is to use special grade or first grade ore directly into the electric melting furnace for smelting. The market has a great demand for high-grade fused magnesia, especially the demand for fused magnesia with MgO content above 97.5%. However, the current high-grade magnesite resources are less and less, and there are almost no super-grade ores. The production of high-grade fused magnesium from low-grade tailings is the research direction of this industry. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a production device for producing high-grade fused magnesia from tailings, which can greatly increase the output ratio of high-grade fused magnesite and improve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10C01F5/14
CPCC01F5/14C04B2/102Y02P20/10
Inventor 毕胜民吴国华董宝华孙希忠赵权秦楠钟刚王飞石生凯王新星肖立宏王耶
Owner LIAONING DONGHE NEW MATERIAL CO LTD
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