Abstract: Abstract: This paper briefly introduces the use condition of the teeter bed separator in Quandian coal preparation plant, the operating principle and separating effect of the teeter bed separator.Two teeter bed separators are used to increasing the coarse slime treatment quantity ,but the separation efficiency is poor.If use a better classification equipment to ensure the feed size range of the teeter bed separator, it will take the advantage of teeter bed separator and complement coal slurry water processing of coal preparation plant.

Key words: Keywords: Coal preparation plant, Teeter bed separator, Coarse slime, Separation performance