Abstract: The problem with all the ABS series banana screens used at Wangjialing Coal Preparation Plant is that the connections of screen plates with their rail seats are irrational in design. To address this issue, an optimization scheme is proposed, following an analysis of the basic situation of the series screens, and in line with the specific site conditions. After the use of the structurally optimized screens during the period from March 2017 to February 2018, the shutdown of production system caused by falling off of screen plates only happened once, which lasted only 0.50 h, and the average monthly number of screen plates replaced is reduced by 69 with basically no need to replace any rail seat.