Preparation method of coal gangue regenerative artificial landscape stone

Abstract

The invention relates to the field of processing of artificial landscape stones, in particular to a preparation method of a coal gangue regenerative artificial landscape stone. The preparation methodcomprises the following steps: sorting and classifying waste coal gangue block materials; loading the sorted and classified coal gangue block materials into a roasting kiln, and closing a kiln door; igniting the roasting kiln to roast the coal gangue block materials, maintaining the temperature for 4 to 6 hours when the roasting temperature rises from the initial kiln temperature to temperature of110 to 125 DEG C, then heating the kiln to 850 to 1,050 DEG C, maintaining the temperature for 24 to 32 hours, cooling the kiln to 300 DEG C, maintaining the temperature for 4 to 6 hours, ceasing thefire, cooling the kiln to the kiln temperature, opening the kiln door, and discharging the stone from the kiln. According to the preparation method of the coal gangue regenerative artificial landscape stone, by roasting processing of coal gangues which are coal mine wastes at certain temperature, the process is simple, and the quality is stable. The artificial landscape stone has rocklike texture, patterns and color; furthermore, the material is easy to obtain, and the artificial landscape stone is easy to manufacture and low in cost, can further prevent fire and isolate heat, and can replacea large number of natural landscape stones and achieve the effects of beautifying the living environment of people and maintaining natural ecological landscapes.

Description

technical field [0001] The invention relates to the field of artificial landscape stone processing, and more specifically relates to a method for preparing artificial landscape stone regenerated from coal gangue. Background technique [0002] Coal gangue is an inevitable product of coal mining and processing, and is the main source of pollution in mines. At present, the utilization rate of coal gangue in China is less than 30%. A large amount of coal gangue is still piled up in the open air, occupying a lot of land and polluting the surrounding environment. Harmful to human health, serious social and environmental problems have become the primary issue of environmental governance in coal mining areas. With the acceleration of national ecological green construction and beautiful landscape design, more and more landscape stones are used and their uses are more extensive. However, the mining of natural landscape stones will greatly destroy the original ecological environment, t...

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Problems solved by technology

[0003] At present, my country's coal gangue is mainly stacked into mountains in the open air. The utilization rate is low, and it is easy to spontaneously ignite, forming an artificial volcano, which is difficult to control, and brings great harm to the surrounding environment and humans. The use of coal gangue is only used in the building materials industry. When it is used in a small amount, the coal gangue must be processed to be used after the coal gangue is used for spontaneous combustion, and the massive coal gangue discharged from the coal mine is directly used to produce other things. The preparation method of a kind of coal gangue regeneration artificial landscape stone of the present invention is The use of massive coal gangue directly discharged from coal mines to produce recycled artificial landscape stones is still a blank.