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A special grinding aid for ore crushing

A technology for ore crushing and grinding aid, applied in the field of mineral processing, can solve problems such as poor grinding aid effect, and achieve the effect of facilitating diffusion and penetration, improving grinding efficiency and avoiding re-agglomeration

Inactive Publication Date: 2020-06-09
迁西福珍全矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a special grinding aid for ore crushing in view of the shortcomings of the traditional ore crushing special grinding aids that have poor grinding effect.

Method used

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  • A special grinding aid for ore crushing

Examples

Experimental program
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Effect test

example 1

[0030] Graphene oxide and sodium azide dimethylformamide solution with a mass fraction of 6% were mixed and poured into the reaction kettle at a mass ratio of 1:10. Under the condition of ultrasonic frequency of 70kHz, after ultrasonic dispersion for 40min, in At a temperature of 85°C and a rotation speed of 800r / min, stir and react at a constant temperature for 3 hours, then add lithium aluminum hydride that is 0.5 times the mass of graphene oxide, and react at a constant temperature for 5 hours at a temperature of 85°C and a rotation speed of 800r / min. Afterwards, filter to obtain a filter cake, and vacuum-dry the gained filter cake to obtain amino-grafted modified graphene oxide; in parts by weight, successively take 5 parts of surfactants, 8 parts of ammonium nitrate, 40 parts of inorganic salts, 10 parts of crystalline hydrate, 3 parts of coupling agent, 10 parts of amino-grafted modified graphene oxide, first the surfactant, ammonium nitrate, inorganic salt, crystalline h...

example 2

[0032]In parts by weight, successively take 5 parts of surfactants, 8 parts of ammonium nitrate, 40 parts of inorganic salts, 10 parts of crystalline hydrates, 3 parts of coupling agents, and 10 parts of graphene oxide. , inorganic salt, crystalline hydrate, coupling agent and amino-grafted modified graphene oxide are mixed and poured into the mixer, and anhydrous ethanol 2.0 times the mass of the inorganic salt is added, and then the temperature is 20°C, and the rotation speed is 600r Under the condition of constant temperature stirring and mixing for 4 hours, the material was discharged and vacuum freeze-dried to obtain the mixture; then the obtained mixture and isocyanate were poured into the mixer, at a temperature of 6°C and a speed of 1200r / min. After stirring and mixing at low temperature for 6 hours, the material is discharged to obtain the special grinding aid for ore crushing. The surfactant is sodium dodecylbenzenesulfonate. The inorganic salt is formed by mixing a...

example 3

[0034] In parts by weight, successively take 5 parts of surfactants, 8 parts of ammonium nitrate, 40 parts of inorganic salts, 10 parts of crystalline hydrates, and 3 parts of coupling agents. The compound, coupling agent and amino-grafted modified graphene oxide were mixed and poured into the mixer, and anhydrous ethanol 2.0 times the mass of the inorganic salt was added, and then at a temperature of 20°C and a speed of 600r / min, the After stirring and mixing for 4 hours, the material was discharged, and vacuum freeze-dried to obtain a mixture; then the obtained mixture and isocyanate were poured into a mixer, and at a temperature of 6°C and a rotation speed of 1200r / min, after stirring and mixing at a low temperature for 6 hours, After discharging, the special grinding aid for ore crushing is obtained. The surfactant is sodium dodecylbenzenesulfonate. The inorganic salt is formed by mixing aluminum chloride and sodium thiosulfate at a mass ratio of 10:1. The crystalline hy...

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Abstract

The invention discloses a special grinding aid for ore crushing, and belongs to the technical field of ore processing. The special grinding aid for ore crushing comprises a surfactant, ammonium nitrate, an inorganic salt, a crystal water compound, a coupling agent, isocyanate and amine grafted modified graphene oxide. A preparation method for the special grinding aid comprises the following stepsof: mixing and pouring the surfactant, the ammonium nitrate, the inorganic salt, the crystal water compound, the coupling agent and the amine grafted modified graphene oxide into a mixer, adding absolute ethyl alcohol with mass 1.0-2.0 times that of the inorganic salt, stirring and mixing for 2-4 hours at a temperature of 10-20 DEG C, and vacuum freeze-drying to obtain a material mixture; and mixing and stirring the material mixture and isocyanate at a temperature of 4-6 DEG C, and discharging to obtain the special grinding aid for ore crushing. The special grinding aid for ore crushing prepared by the technical scheme has excellent grinding efficiency, and has a wide prospect in development of the ore processing technical industry.

Description

technical field [0001] The invention discloses a special grinding aid for ore crushing, which belongs to the technical field of mineral processing. Background technique [0002] The grinding process is an energy-intensive operation, especially when fine and ultra-fine grinding of minerals is required. The statistical results show that the electric energy consumed by grinding accounts for about 5% of the total power generation of the year; in terms of investment, the grinding operation accounts for about 60% of the investment of the entire concentrator; the power consumption of grinding operation accounts for about 30% of the investment of the whole plant. % to 70%, and production and operation costs also account for 40% to 50% of the total plant investment; technically, the main problems in grinding operations are high energy consumption and low efficiency. Therefore, it is of great significance to reduce the energy consumption of ore grinding, especially the energy consump...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C23/06
CPCB02C23/06
Inventor 裘友玖马俊杰宋宇星
Owner 迁西福珍全矿业有限公司
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