Coal dry separator, high precision without water for coal washing

The coal washing process has begun to try to use the dry separation process, that is, the impact of water flow is replaced by air jet.

The water washing process has been widely used, that is, through the impact of water flow, the raw coal with different components and different proportions is separated into different grades, and the dust and waste rock are removed to reduce the ash and sulfur content. Washing coal with water can reduce the cost of coal transportation and improve the utilization rate of coal to a certain extent. Today, the coal washing process has begun to try to use the dry separation process, that is, the impact of water flow is replaced by air jet.

“Different from the traditional coal preparation process and the existing dry separation technology on the market, the multi-spectral, full-grain, high-precision, energy-saving dry separator developed by our team can truly achieve high-efficiency, high-quality, low-waste, and high-efficiency coal preparation. Low consumption.” According to Peng Xuan, the head of the project’s research and development, the main dry separation process in the market is the “X-ray + wind blowing” mode, and the team innovated on the basis of this mode, using multi-spectral detection technology to achieve coal separation. The ultra-high-precision identification, through the “X-ray + laser imaging + thermal imaging” trinity technology, successfully developed a multi-spectral full-grain high-precision energy-saving dry separator, which improved the identification accuracy of raw coal by more than 50%, The rate of coal carrying gangue and gangue has been reduced to less than 1%, and the precise separation of coal and gangue has been achieved. At the same time, the range of coal sorting and grading has been expanded to 5mm-300mm, and the production speed in the coal washing stage has been increased by 30%. The consumption is reduced by 57%, and the cost is saved by 50%, which truly achieves the reduction of consumption and quality improvement of the coal washing process.