In order to make full use of limestone tailings, improve the utilization rate of limestone mineral resources, and promote the construction of green mines, our company extended the industrial chain upstream, and invested in a comprehensive utilization project of limestone tailings resources with an annual output of 3 million tons at the end of 2019. The project adopts today's domestic advanced sand and gravel aggregate production technology and low energy consumption, high environmental protection equipment, fully enclosed operation, centralized computer control, green and automated production process, and belongs to a new generation of green production with large output, low energy consumption and high environmental protection. Environmentally friendly sand and gravel aggregate production line.

The main products are: 10~25MM, 5~10MM, 0~5MM building aggregates and machine-made sand, the product quality conforms to national standards, and is widely used in water conservancy and hydropower, construction, roads, railways and other construction fields. It is necessary for the production of concrete. raw materials.