How to deal with iron tailings? Iron tailings processing crushing sand making equipment
Iron tailings sand is a kind of tailings waste residue with stable fineness modulus and conforming to fine sand or ultra-fine sand produced after iron ore beneficiation ore purification, grinding and beneficiation. According to research and tests, most of the subdivisions contained in the iron tailings sand are divided into stone powder particles, which are strong components and are beneficial to the mechanical properties and durability of concrete.
Due to the lack of sand and gravel resources, the quality of sand and gravel raw materials fluctuates greatly, and it is difficult to purchase natural sand and gravel that meet the requirements of current specifications. The main performance is that the natural sand and gravel have a high stone content (generally 10%-40%), and the mud content exceeds the standard.
Replacing river sand with iron tailings partly can not only reduce the adverse effect of rock content fluctuation on concrete performance, but also optimize the particle size distribution of fine aggregate. The fine powder of tailings sand with particle size less than 0.15 mm is mainly stone powder. The performance of stone powder is different from that of mud powder in river sand, and the absorption of additives is small. Adding some iron tailings can effectively reduce the mud content of fine aggregate.
Iron tailings sand is the tailings that can be utilized by the sand making machine and sand making equipment under the specific economic and technical conditions of the concentrator. The solid waste discharged after the ore is ground to select useful components is an important source of environmental pollution caused by mining development, especially metal mine development.
Iron ore tailings slag is processed into sand, the same equipment and process as river pebble, granite, limestone and other ores are processed into sand, using jaw crusher, cone crusher and sand making machine, as well as screening machine, feeder, etc equipment. The large iron ore tailings slag is crushed to the size of sand, and its particle size includes coarse sand 3.7-3.1 medium sand 3.0-2.3 fine sand 2.2-1.7. If you are interested in our company, please contact us!