A Parameter Analysis Method Using Microwave Assisted Grinding Boronite

Abstract

A parameter analysis method using microwave-assisted grinding of boronite, which belongs to the field of mineral processing technology. It is carried out according to the following steps: (1) Microwave roasting of boronite in a microwave oven with a microwave power of 1500~2500W and heating to a temperature of 450~650℃, input amount 50~250g; (2) Grind the microwave-treated boronite, the grinding time is 5~6 minutes, and screen out the part with a particle size ≤75μm; (3) Use response surface method The central combination design optimizes the ball milling process of boronite. The selected influencing factors are: microwave power X1, unit is W, microwave roasting temperature X2, unit is ℃, input amount ≤75μm yield percentage; (4) Through the Design‑Expert experimental design optimization software, the impact of the selected experimental factors on the grinding efficiency of boronite was analyzed, and the significant factors affecting the grinding efficiency of boronite and the most significant factors were obtained Excellent process conditions.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a parameter analysis method using microwave-assisted grinding of boronite. Background technique [0002] my country is a country rich in boron ore resources in the world. Among them, the boron-iron ore reserves in Liaodong area reach 280 million tons, accounting for 57.88% of my country's boron ore resources. The structure is complex and diverse, and there are many multi-element symbiotic minerals. There are more than 30 types of minerals that have been identified, which are typical low-grade refractory composite ores. This makes boronite valuable minerals and It is difficult to fully and effectively dissociate gangue minerals, and it is difficult to separate them by simple mechanical grinding methods. It is necessary to improve the existing grinding technology and improve the resource utilization rate of boronite, which can not only meet the needs of chemica...

AI Technical Summary

Problems solved by technology

[0003] In the traditional operation, the crushing and grinding process has a large investment and high energy consumption. In the concentrator, the investment in crushing and grinding accounts for more than 60% of the whole plant, the power consumption accounts for 50-60% of the beneficiation, and the production and operation costs also account for more than 40% of the whole plant; There are billions of tons of mineral materials that need to be crushed every year in the country, and more than 5% of the country's annual power generation is consumed in grinding, and about one million tons of steel are consumed in grinding; the energy in the grinding process is mainly dissipated in heat, Sound, friction, etc., the energy actually used for crushing to break the bond between mineral particles and generate a new surface only accounts for 1%, and the energy utilization rate is very low.

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