Low-grade talc optical separation and purification technology is based on the difference in physical properties such as hardness and light reflectivity between talc and gangue minerals, through selective crushing classification and optical separation technology to achieve separation, so as to obtain high-quality talc products with higher purity.
Process flow: The low-grade powder talc is sent to the vibrating screen for screening, and the various materials with a particle size of less than 20 mm obtained by the screening are sent to the small hopper of the belt conveyor and transported to the silo of the water separator through the belt conveyor , A vibrating feeder is installed under the silo. The vibrating feeder sends the materials to the water separator quantitatively, uniformly and continuously. The rotation of the water separator generates friction with the ore particles. Due to the different hardness and friction of talc and gangue , Under the action of water flow, talc and gangue are pre-separated, and then various materials are output to the optical separation and purification device through the distributor, and the purified materials enter the storage warehouse for storing products of different sizes.
Since Aihai completed the project in 2010, the number of sorting and the quality of purification have far exceeded manual selection. Judging from the production and operation of Aihai in the past two years, the project has been running well, reducing the storage space and emissions, reducing the land occupation area and greatly improving the environment.
The low-grade talc optical separation and purification technology is in line with the development direction of the national non-metallic mineral industry. It is effective for the effective and reasonable use of domestic talc resources, regulating the comprehensive utilization of non-renewable resources, increasing the added value of tailings and low-grade talc, and improving the processing technology and processing technology of the talc industry. Equipment level, expanding the conservation and comprehensive utilization of talc resources have obvious social benefits and broad promotion prospects.
