The 21st century is a century of resource conservation. It is one of the important means to save resources and reduce pollution and waste by doing a good job of rational development of resources without affecting normal use. For heavy industry, blast furnace slag is a fixed waste in the steel industry. If it is not used well, it will cause serious pollution to soil, water and atmosphere, and it is also a serious waste of resources. In recent years, the slag processed by the vertical roller mill is used in the building materials industry such as cement and concrete, so that the slag enters the harmless and resource-based recycling economy, and the vertical roller mill is also highly respected by the slag industry.
The vertical roller mill produced by SBM heavy machine is mainly composed of powder sorting machine, grinding roller device, grinding disc device, pressing device, reducer, motor and housing. The ground slag is sent to the center of the rotating grinding disc by the wind-locking feeding device. Under the action of centrifugal force, the slag moves to the periphery of the grinding disc and enters the grinding roller. It is pulverized by the pressure of the grinding roller. At the same time, the slag after grinding is blown by the high-speed airflow at the wind ring to dry the suspended slag, and the fine powder is brought into the separator for classification by hot air. The qualified slag fine powder is collected by the dust collecting device as a product, The qualified slag coarse powder falls to the grinding disc and is re-grinded, so that the whole process of the grinding operation is completed, and the integrated operation of slag fine crushing, drying, grinding and powder selection is realized. The vertical roller mill can process the slag according to the hardness of the slag and the fineness of the finished product, using different grinding wheel speed or speed regulation, and the corresponding grinding roller pressure, combined with the separation mechanism, running speed, sealing, etc. Different product requirements, achieving higher grinding and sorting efficiency. The vertical roller mill is widely used in slag grinding and blast furnace injection of pulverized coal. It is used in steel plants, power plants, cement plants, non-metallic ore grinding (large-scale industrial milling industry), etc., with remarkable effects.
The blast furnace slag is used as a cement mixture. Because the slag is difficult to grind, the slag is separated from other components such as clinker, the slag is separately ground, the clinker is ground together with gypsum and other mixed materials, and the SBM heavy machine is produced. According to the market demand, the mill produces slag powder of different finished product sizes, and arranges the synthesis of slag cement or composite cement of different strength grades to provide various cement products with different special properties and uses to realize the individualized development of cement product performance. The mill is better able to meet the different requirements of customers.
With the creation of a resource-saving society, vertical roller mills with energy-saving features will be more popularized and used. Of course, SBM heavy machines will continue to learn and develop, and create and save more and more. Satisfactory product equipment, jointly promote the progress of China’s industrialization and the rational use of resources.