In recent two years, with the continuous expansion of sand and gravel resources control, comprehensive utilization of tailings and mine ecological restoration have become hot topics. In terms of iron ore tailings, can it really be used as concrete after treatment? What equipment is needed? Here are your detailed answers:
There is evidence that iron ore tailings can be used as concrete.It is understood that as early as July 2020, the Ministry of industry and information technology has issued a relevant notice to build a number of green sand and stone aggregate bases using tailings, waste rock and other solid wastes to prepare sand and stone aggregate and dry mixed mortar in Beijing, Tianjin, Hebei and surrounding areas.
According to the data of China gravel aggregate network, iron tailings can be used for cement cementitious materials, concrete, aerated concrete, building mortar, etc. Moreover, pebbles and crushed stones for construction (GB / t14685-2011) stipulates that crushed stones produced from mine waste can be used in concrete, which further expands the application scope of iron tailings.
In addition, using tailings resources to make sand can not only alleviate the shortage of sand supply in the market, but also improve resource utilization and reduce environmental pollution. The project is also supported by financial funds and has broad investment prospects. Therefore, iron tailings can be used as concrete sand after treatment. Please rest assured!
What equipment is needed to prepare concrete from iron ore tailings?
Generally, mine tailings need to be subject to impurity removal treatment before use, and then crushed and sand making processing, so it is bound to use crusher and sand making machine. If customers have strict requirements for finished products, they can also cooperate with sand washing machine. Details of iron ore tailings treatment equipment are as follows:
1. Jaw crusher.The jaw crusher is mainly used for fine crushing of large iron ore tailings. It can crush large ore less than 120cm to less than 20cm and 30cm for subsequent sand making operation. The design output is 1-1000t / h, and users can choose according to their actual needs.
Note: if the specification and size of processed materials meet the feeding requirements of sand making machine, the crushing process can be omitted.
2. Sand making machine.From a practical point of view, it is recommended that you use VSI sand making machine. It is an upgraded version of the traditional sand making machine. Compared with the old equipment, this VSI sand making machine has higher sand efficiency, and the hourly output of a single machine is up to 650T / h. In addition, it is integrated into the design with automatic control system, remote control through computer, more convenient and fast operation, and has been equipped with vibration display and alarm device, Ensure personal and equipment safety. In addition, more importantly, it also has shaping effect, but it is much cheaper than the same type of sand making and shaping machine. Therefore, it is one of the necessary gravel sand making equipment for gravel factories and stone factories.
