According to relevant data, the world's industrialization and urbanization are developing rapidly, and the constraints on resources and environment are becoming increasingly prominent. The resource bottleneck will become more prominent in the future, and the resource situation will become more severe. Therefore, it is necessary to make better use of various resources. In the case of a shortage of various ore resources, the development of the metallurgical industry is facing a certain test, and the problem of metallurgical slag treatment has become an urgent problem to be solved.
What is metallurgical slag? Metallurgical slag is a by-product of the combination of fusible silicates in ores, fuels and co-solvents during metallurgical production. After being discharged from the furnace, these metallurgical slags are naturally cooled in the air to form a hard material. According to the current state of the art, if we want to deal with the use of metallurgical slag in large quantities, we must only develop the road of energy conservation, waste, and environmental protection.
Because of the yellow feldspar, pyroxene, olivine and a small amount of sulfide in the metallurgical slag, these mineral components directly affect the relative density of the slag, which is larger than the general rock, and the freezing resistance or the strong performance is also superior. The porosity of the slag affects the mechanical strength of the slag, the ultimate compressive strength is above 50MPa, and the highest is 150MPa, which is equivalent to the strength of limestone to granite. This physical property makes the slag have good stability. This key characteristic determines that the slag can be a good road material after being processed by some special crushing equipment (sand making machine). As a base material for roads, it can also be used as an aggregate for cement concrete or asphalt concrete pavement.
In addition, in the metallurgical slag, the tailings can be used in the production of building materials by magnetic separation. For example, magnetic separation and recovery of tailings can be used to produce cement mixed materials, road substrates, masonry cement, ready-mixed mortar, concrete standard bricks, porous bricks, metallurgical slag autoclaved building blocks and other building materials.
There are many kinds of solutions for the treatment of metallurgical slag. In view of the special properties of metallurgical slag, it needs to undergo certain processing when it is reused. The sand making machine equipment is a high-energy and low-consumption equipment with international advanced level. The series sand making machine is suitable for the crushing and shaping of soft or medium hard and extremely hard materials. It has the functions of fine crushing and coarse grinding, stable operation, low working noise, high efficiency and energy saving, high crushing efficiency, etc. It is very suitable for metallurgical slag processing. The crushing work is the best choice for metallurgical slag treatment.
It is believed that with the sand making machine equipment to treat the metallurgical slag, the processing of metallurgical slag will be easier to carry out, and its application field will be further expanded.
