Artificial red agate made from coal gangue and making method thereof

Abstract

The invention belongs to the field of handicraft production, in particular to an artificial onyx made from coal gangue and a manufacturing method thereof. It is characterized in that the raw material of the present invention is coal gangue, and the preparation steps are: weighing, crushing, grinding, heating to remove water and organic matter, preparing hydrochloric acid aqueous solution, measuring hydrochloric acid aqueous solution, mixing coal gangue and hydrochloric acid solution, and heating to remove metal oxides , filtering, drying, weighing ferric oxide powder, smelting, pouring, carving, grinding, polishing. The artificial red agate prepared according to the invention is ruddy in color, fine and tough in texture, moist and soft in luster, and has good mechanical properties, can be used in the field of handicrafts, and has broad application prospects. The invention uses coal gangue as production raw material to produce products with high added value, realizes the high value-added utilization of coal gangue, and opens up a new way for its comprehensive utilization.

Description

technical field [0001] The invention belongs to the field of handicraft production, in particular to an artificial onyx produced by coal gangue, a solid waste produced in the coal industry, and a manufacturing method thereof. Background technique [0002] Coal gangue is an industrial solid waste produced during coal production, and it is one of the most discharged industrial solid wastes in my country. At present, it has accumulated more than 3 billion tons, and it is still growing at a rate of 100-200 million tons every year. Enterprises generally use open-air stacking to process coal gangue, which occupies a large amount of land, and on the other hand, harmful substances in coal gangue will pollute groundwater and the surrounding air, thus causing serious harm to the ecological environment. [0003] Over the years, people have adopted a variety of technologies to comprehensively utilize coal gangue, such as extracting beneficial chemical components from it, producing build...

AI Technical Summary

Problems solved by technology

Enterprises generally use open-air stacking to deal with coal gangue. On the one hand, it takes up a lot of land. On the other hand, the harmful substances in coal gangue will pollute the groundwater and the surrounding air, thus causing serious harm to the ecological environment.

[0003] Over the years, people have adopted a variety of technologies to comprehensively utilize coal gangue, such as extracting beneficial chemical components from it, producing building materials with coal gangue as raw materials, etc., but these technologies have defects to a certain extent, such as extracting beneficial components In the end, industrial solid waste will still be produced, and when extracting beneficial components, it is generally necessary to add a certain amount of reactants, so that in many cases, the amount of waste generated is more than that of coal gangue; in the application of building materials There are also problems such as unstable quality and high energy consumption

However, natural red agate resources are very limited and cannot meet the growing needs of people.

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