The development prospect of non-metallic crusher
It is understood that the development and utilization of non-metallic mineral products in our country began in the 1950s. So far, more than 100 kinds of non-metallic mineral products with economic value have been discovered, which has greatly promoted the economy. Rapid development.
It is understood that the development and utilization of non-metallic mineral products in our country began in the 1950s. So far, more than 100 kinds of non-metallic mineral products with economic value have been discovered, which has greatly promoted the economy. Rapid development. Because of the discovery of non-metallic minerals, mineral processing operations have become a major operation, so the operation of ultra-fine crushing of non-metallic minerals has been continuously strengthened, and the requirements for mineral processing and crushing machinery and equipment have become higher and higher. Most of the non-metallic minerals are crushed and graded by crushers and directly used in agriculture, chemicals, papermaking, rubber, coatings and other products. There are many types of non-metallic minerals. According to the different uses of non-metallic mineral products, different requirements are put forward for the particle size of crusher products.
So what are the requirements of the crusher for the crushing of non-metallic ores? Generally speaking, there are three points: fineness, purity, and powder shape.
(1) Fineness of non-metallic minerals. The application of non-metallic mineral products requires a certain fineness. For example, kaolin and heavy calcium carbonate as papermaking raw materials require product fineness of -2 & 90%, whiteness > 90%, high-grade paint filler, heavy calcium carbonate powder, fineness of 1250 mesh, etc.
(2) Purity of non-metallic minerals. The purity requirement of non-metallic mineral products is also one of its main indicators. This means that no pollution should be allowed during the crushing process, and the original composition should be maintained. If it is a white mineral, it is also required to have a certain whiteness, such as the whiteness requirement of the grinder for calcined kaolin and talc for papermaking, and the whiteness requirement of heavy calcium carbonate for papermaking coatings, fillers and high-grade paint fillers > 90%.
(3) Special requirements for the shape of the powder of non-metallic minerals. Some non-metallic mineral products have put forward strict shape requirements for their shape to meet different needs. For example, wollastonite for composite reinforcement, its ultra-fine powder is required to maintain its original needle-like crystalline state as much as possible, making wollastonite products a natural short fiber reinforced material, and its aspect ratio is required to be > 8~ 10.
From the above situation, we can see that the development of non-metallic ore ultra-fine crusher equipment is the key to complete-built unit technology. Before my country started its own crusher equipment, it mainly relied on imported equipment for processing or direct import. With the continuous progress of society and the vigorous development of my country's economy, it began to have its own equipment.