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Production process of inorganically combined fluorite balls

A preparation process, the technology of fluorite balls, which is applied in the field of preparation of inorganic combined fluorite balls, can solve the problems of fluorite lump ore tension, cost rise, environmental pollution, etc., to improve the speed of slag removal, reduce production costs, and achieve high grade Effect

Active Publication Date: 2012-10-03
FOGANG DEYU FLUORITE BALL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorite ore for smelting generally requires a grade of CaF 2 However, limited by resources, medium and high-grade fluorite lumps are becoming more and more scarce, and the cost has risen sharply, while low-grade, high-FeO, MnO and other oxide fluorite raw lumps and powders are in abundance. , especially the low-grade and high-impurity fluorspar tailings produced by symbiosis with non-ferrous metal mines through mineral processing are piled up like mountains, with no way out, wasting resources and polluting the environment. How to dispose of these wastes and propose an effective resource method has become an extremely important issue in society. Concerns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Fluorite flotation powder (with a mesh number of 100-300 mesh), fluorite ore powder (with a particle size of ≤3mm, in the fluorite ore powder, the mass percentage of fluorite ore powder with a particle size of 1-3mm is greater than 70% and less than 100%), inorganic binder, water, sodium fluorosilicate (99% purity) are mixed evenly in a cylinder mixer, and then the mixture is placed in a double-roller strong ball press (line pressure of the machine: 2.5t / cm) into balls, then bake the balls at 350-400°C for 3.0 hours, and cool to room temperature naturally.

[0020] Based on the mass sum of fluorite flotation powder and fluorite mineral powder as 100%, the mass percentage of fluorite mineral powder is 10%.

[0021] CaF in the fluorite flotation powder 2 The content of ≥88wt%, SiO 2 Content≤9wt%, S content≤0.1wt%, P content≤0.06wt%.

[0022] In the fluorite ore powder, CaF 2 The content of ≥80wt%, SiO 2 Content≤14wt%, S content≤0.15wt%, P content≤0.06wt%.

[0023] T...

Embodiment 2

[0027] Mix fluorite flotation powder (100-300 mesh), sodium silicate solution, water, sodium fluorosilicate (99% purity) in a cylinder mixer, and then place the mixed material on the Balls are pressed into balls in a roller briquetting machine (line pressure of the machine: 2.5t / cm), and then the balls are baked at a temperature of 350°C-400°C for 3.0h, and then naturally cooled to room temperature.

[0028] In the fluorite flotation powder, CaF 2 The content of ≥88wt%, SiO 2 Content≤9wt%, S content≤0.1wt%, P content≤0.06wt%.

[0029] The inorganic binder is a sodium silicate solution with a modulus of 2.8, the solution concentration is 50°Bé, and the mass percentage of the sodium silicate solution in the mixed material is 6%.

[0030] The mass percentage of sodium fluorosilicate in the mixed material is 1%.

[0031] The mass percentage of water in the mixed material is 4%.

Embodiment 3

[0033] Fluorite flotation powder (with a mesh number of 100-300 mesh), fluorite ore powder (with a particle size of ≤3mm, in the fluorite ore powder, the mass percentage of fluorite ore powder with a particle size of 1-3mm is greater than 70% and less than 100%), sodium silicate solution, water, sodium fluorosilicate (99% purity) are mixed evenly in a cylinder mixer, and then the mixture is placed in a double-roller strong ball press (line pressure of the machine: 2.5t / cm) into balls, and then bake the balls at a temperature of 350°C-400°C for 3.0h, then cool naturally to room temperature.

[0034] Based on the mass sum of fluorite flotation powder and fluorite mineral powder as 100%, the mass percentage of fluorite mineral powder is 6%.

[0035] In the fluorite flotation powder, CaF 2 The content of ≥88wt%, SiO 2 Content≤9wt%, S content≤0.1wt%, P content≤0.06wt%.

[0036] In the fluorite ore powder, CaF 2 The content of ≥80wt%, SiO 2 Content≤14wt%, S content≤0.15wt%, P c...

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Abstract

The invention discloses a production process of inorganically combined fluorite balls. The production process of inorganically combined fluorite balls includes the steps of mixing well fluorite floatation powder, fluorite powder, inorganic binder, water and sodium fluosilicate, feeding the mixture into a high-power double-roller ball press to press the mixture into balls, and baking and cooling the balls. The inorganically combined fluorite balls have high grade (content of CaF2 is not less than 85wt%), stable quality and reasonable reaction specific surface area, and have performance and mechanical strength required by stainless steel and high-strength pressure-resisting (blast furnaces and nonferrous metals) smelting of superlow-carbon 300 series and above. By applying the inorganically combined fluorite balls to smelting of special steel, the stainless steel, the blast furnaces and the nonferrous metals, slagging speed can be increased, smelting time can be shortened, and production cost can be lowered.

Description

Technical field [0001] The present invention involves the preparation process of inorganic combination of fluorite balls. Background technique [0002] Fluorite has the melting point of difficult melting substances in metal smelting process such as special steel, stainless steel, and iron alloy, promoting the flow of slag, and making the slag and metal very separate.In the process, as a fuse, it is widely used in desulfurization and dehydration, enhanced metal forgedness and tension strength.Fluorite ore for smelting is generally required for CAF 2 The content of ≥70WT%or more, but due to resources, the high -quality fluorite ore is becoming more tense, and the cost has risen sharply.In particular, the low -quality high -quality fluorite ore ore produced by the symbiosis of non -ferrous metal ore piles like mountains, no way out, wasting resources and polluting the environment.Concerns. [0003] In order to effectively solve this problem, first of all, the low -grade fluorite and...

Claims

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Application Information

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IPC IPC(8): C22B1/243
Inventor 翁水生
Owner FOGANG DEYU FLUORITE BALL
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