Comprehensive utilization method of granite

Abstract

The invention provides a comprehensive utilization method of granite, and belongs to the technical field of mineral utilization. According to the method, two sections of crushing-screening closed-circuit processes are adopted, and sand manufacturing is achieved by utilizing a vertical impact type crushing machine; black mica is pre-separated by using a strong magnetic roller type magnetic separator; and then black quartz coarse ore, high-potassium feldspar ore and potassium-sodium mixed ore are pre-separated by adopting a color separator, moreover, the separated products are correspondingly subjected to grading and physical method purification, and the obtained final products can meet the requirements of the downstream industry. The whole production process adopts the physical method, no chemical reagents need to be added, moreover, no waste is generated, and green production is really realized. According to the comprehensive utilization method of granite, various valuable components in the granite are fully developed and utilized, the comprehensive utilization rate of resources is improved, the additional value of the products is greatly improved, social benefits and economic benefits are remarkable, and therefore, the method has a wide application prospect in the development and utilization of granite minerals.

Description

technical field [0001] The invention relates to the technical field of mineral utilization, in particular to a comprehensive utilization method of granite. Background technique [0002] Granite is the landmark rock of the continent and the foundation of the upper crust of the continent. It can be seen that the reserves of granite are abundant. Due to the lack of effective development and utilization of granite, most of the granite is still in a state of development, even if a small part has been developed and utilized. It is also only selectively cut and polished, and used as the cornerstone of the road, square bricks, or step stones of buildings. These products are not only produced in a harsh environment, but also produce products with low quality and low added value, resulting in serious waste of resources and hidden dangers to the ecological environment. [0003] Although the composition of granite is complex, it is mainly composed of quartz, orthoclase and microplagioc...

AI Technical Summary

Problems solved by technology

The utilization and development of single quartz and feldspar minerals are relatively mature in domestic technology, but research and reports on the comprehensive utilization of granite as a mineral are rarely heard.

Analyzing the reason, it may be that granite is only used as a mineral object. Compared with quartz, SiO 2 The content is not enough, compared with feldspar ore, K 2 O, Na 2 O and Al 2 o 3 The content is low, and the impurity content exceeds the standard, and the whiteness cannot meet the requirements of downstream products

According to the characteristic of feldspar in its mineral composition, if the conventional purification method of feldspar ore is adopted in the past, and flotation is used to remove mica, not only the high content of mica in granite will cause high cost of chemicals and great pressure on environmental protection

In addition, the separation of feldspar and quartz is also difficult.

Therefore, although the reserves are abundant, the domestic research on the comprehensive utilization of granite is still blank.

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