What are the market prospects for producing concrete from coal gangue? Due to the rapid growth of concrete raw materials, it is imperative to find new lower-cost concrete raw materials for processing. Concrete produced from coal gangue has high ecological benefits and economic price, and the market prospect is very good.
1.What is coal gangue?
Coal gangue is a solid waste emitted during the coal mining and coal washing processes, and is one of the largest industrial solid waste emissions in China. As a bulk mineral waste, coal porphyry has a huge stock. According to statistics, the stock of coal porphyry in China alone has reached 4.5 billion tons, and it is growing at a rate of 300 million tons per year. This undoubtedly has a huge impact on the environment.
2. Application of coal gangue in concrete.
Some research that mixing coal gangue into concrete and reusing it has important ecological benefits and economic value. At present, there are studies mainly exploring the use of coal gangue instead of clay as a concrete. The glue component is used to bake Portland cement clinker, and there are also studies on adding coal gangue as fine aggregate into concrete. However, it is obviously simpler and more economical to use coal gangue as coarse aggregate for concrete.
3. Mechanical equipment required for producing concrete from coal gangue.
Special coal gangue grinding machine specializes in processing coal gangue, grinding the coal gangue to 80-400 mesh, with an output of hundreds of tons. In some areas, low valley power can be used, and the mill power low consumption. The grinding roller of the mill adopts wear-resistant surfacing welding, which reduces the wear and tear of the mill and reduces the maintenance rate, which greatly reduces the comprehensive investment cost of producing concrete from coal gangue.