Integrated Utilization Solution for Tailing Waste

On March 25, 2020, 15 ministries and commissions including the National Development and Reform Commission and the Ministry of Industry and Information Technology jointly issued the "Guiding Opinions on Promoting the Healthy and Orderly Development of the Sand and Stone Industry". The "Opinions" clearly stated: support the comprehensive utilization of waste rock tailings. On the premise of meeting the requirements of safety and ecological environmental protection, encourage and support the comprehensive utilization of sand and gravel resources such as waste rock, slag and tailings, and realize "turning waste into treasure".

With the continuous reduction of the mining grade of mineral resources, more and more tailings waste are discharged. The large-scale discharge of tailings waste not only becomes an important pollution source of the ecological environment, but also occupies a large amount of land resources and endangers the safety of life and property.

As a leading enterprise in the concrete block machine industry, QGM has directly attacked the pain points of the mining industry. In view of the weakness of the unbalanced development of the comprehensive utilization of tailings resources in China, it conducts a specific analysis of specific problems, and combines its own industry to develop an integrated solution for tailings waste.

The steel slag can be used as landfill materials, road materials, building materials, etc. after treatment to eliminate the expansion and collapse factors caused by f-CaO. At present, the more mature application is that steel slag, used for paving and brick making after aging. The deep processing of scrap steel slag for block making process, through the crushing and pressure heat treatment of converter steel slag. Finally the scrap steel slag after magnetic separation is used as the main aggregate of block making, which replaces the limestone in the traditional block making process, with natural sand and cement for block making. It can make various concrete block products such as steel slag blocks, floor blocks, road curbs, slope protection block s, building blocks, etc. It is widely used in municipal squares, streets and real estate industries.

Production Process