No matter what form of mechanical fine screen is used, the operator should regularly inspect it. According to the change of water level before and after the grid or the amount of grid slag, turn on the slag remover in time to remove the grid slag. At the same time, pay attention to observe the operation of the slag remover and eliminate all kinds of failures in time. Check and adjust the flow control valve in front of the grid to ensure the uniform distribution of the flow across the grid. At the same time, the number of grids used for work is used to control the grid flow rate within the required range. When it is found that the flow rate across the grid is too high, appropriately increase the number of grids that are put into work. When the flow rate of the grid is found to be too low, appropriately reduce the number of grids that are put into work. With the extension of the running time, sand may accumulate in the channels before and after the grid, and the sand accumulation should be checked and cleaned regularly, and the cause of the sand accumulation should be analyzed.www.khnwatertreatment.com