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Processing raw material and preparation method of fused magnesite

A technology for processing raw materials and fused magnesia, which is applied in the field of refractory material production, can solve the problems of wasting electric energy, mismatch between mixing time and pressing time, etc., and achieves the effects of low input cost, easy combination and simple operation.

Active Publication Date: 2020-06-19
鞍山盈丰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the invention solves the problem that the mixing time and pressing time in the briquetting process do not match, causing the compactor and the briquetting machine to wait for the mixed material to run without load and waste electric energy.

Method used

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  • Processing raw material and preparation method of fused magnesite
  • Processing raw material and preparation method of fused magnesite

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preparation example Construction

[0029] A preparation method for processing raw materials of fused magnesia, comprising the following methods:

[0030] 1) First put 40-50 parts of flotation powder, 20-30 parts of magnesite powder, and 20-30 parts of fused magnesium smelting auxiliary materials into the mixing mill for 8-15 minutes of mixing and rolling. Material temperature is 30-40°C;

[0031] 2) Add light-burned magnesium oxide powder and roll for 18-22 minutes, and the temperature of the mixed and rolled material is 50-60°C;

[0032] 3) Add water and mix and mill for 5-10 minutes, the temperature of the mixed and milled material is above 80°C, and discharge the material to the compacting feeding conveyor belt;

[0033] 4) The PLC power supply and the frequency converter are linked to control the operation of the equipment. The mixer is discharged to the compacting feeding conveyor belt. The operating current of the compacting feeding conveyor belt is converted from the no-load current to the load current....

Embodiment 1

[0041] A raw material for processing fused magnesia, comprising the following raw materials in parts by weight: 45 parts of flotation powder with a particle size of ≤2 mm, 25 parts of magnesite powder with a particle size of 14 mm, and 25 parts of fused magnesite smelting auxiliary materials with a particle size of 9 mm 12 parts, 12 parts of light-burned magnesia powder with particle size ≤ 1mm, and 12 parts of water.

[0042] A preparation method for processing raw materials of fused magnesia, comprising the following methods:

[0043] 1) First put the flotation powder, magnesite powder, and fused magnesium smelting auxiliary materials into the mixing mill for mixing and rolling for 10 minutes, and the temperature of the mixing and grinding materials is 30°C-32°C;

[0044]2) Add light-burned magnesium oxide powder and roll for 20 minutes, and the temperature of the mixed and rolled material is 50°C-55°C;

[0045] 3) Add water and mix and mill for 5-10 minutes, the temperatur...

Embodiment 2

[0052] A raw material for processing fused magnesia, comprising the following raw materials in parts by weight: 42 parts of flotation powder with a particle size of ≤2 mm, 22 parts of magnesite powder with a particle size of 13 mm, and 22 parts of fused magnesite smelting auxiliary materials with a particle size of 8 mm 11 parts, 11 parts of light-burned magnesia powder with particle size ≤ 1mm, and 11 parts of water.

[0053] The preparation method of the processing raw material of the fused magnesia in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention discloses a processing raw material of fused magnesite, and a preparation method thereof. The fused magnesite comprises the following raw materials in parts by weight: 40-50 parts of flotation powder with a particle size of less than or equal to 2 mm, 20-30 parts of magnesite powder with a particle size of less than or equal to 15 mm, 20-30 parts of fused magnesium smelting auxiliarymaterials with a particle size of less than or equal to 10 mm, 10-15 parts of light calcined magnesia powder with a particle size of less than or equal to 1 mm and 10-15 parts of water. Compared withthe prior art, the method of the invention has the beneficial effects that the balling rate and the strength of finished balls can be effectively improved without adding a chemical binding agent, theproblems that the production cost is increased due to addition of the chemical binding agent and the binding agent pollutes the environment in the fused magnesia smelting process are solved, and theproblem that electric energy is wasted due to the fact that the compactor and the ball press wait for no-load operation of mixed materials because the mixing time and the pressing time are not matchedin the ball pressing process is solved.

Description

technical field [0001] The invention relates to the technical field of refractory production, in particular to a raw material for processing fused magnesia and a preparation method thereof. Background technique [0002] At present, due to the resource integration of magnesite mines by the state, the mining area is required to carry out restorative, rational and orderly mining, and to make secondary use of the white waste generated in the previous mining, that is, low-grade magnesite. The flotation powder produced by these low-grade magnesites is used as a kind of raw material by most fused magnesite processing industries. The main equipment for processing fused magnesia raw materials is composed of electrical supporting equipment such as mixer mill, conveyor belt, compactor, ball press machine and vibrating screen. Flotation ore powder, light-burned magnesium powder, fused magnesium smelting auxiliary materials (back-fired materials) and binders are used as the main raw mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/00C04B2/10
CPCC04B2/00C04B2/10
Inventor 金良尚德红窦勇李家余常国栋
Owner 鞍山盈丰新材料科技有限公司