Thank you sir this video right now most useful for my interview

Key advantages of X-ray intelligent dry coal sorting equipment: 1.Replacing handpicking and jigging 2.Coal processing without water to resolve the constraint of water shortage; 3.Coal processing in the areas easy to be muddy in contact with water 4. Recycling of end coal and sorting of other non-minerals 5.Reduce the cost of coal processing 6.Easy to construct and the construction time is much shorter 7.No water circuits and slurry ponds required, issues with permits are also less 8.Can also be made semi-mobile allowing fast and easy relocation of processing plants

40:29 Float - Sink

Coal

Hi Sir, How much approximate wastage % in process of the coal production process.