The device can adjust the operation time of the equipment according to the user's needs, and can realize the periodic operation. According to the gate before the gate, the level difference can be automatically controlled. Users can choose according to different work. In short, GL type grille decontamination machine has high degree of automation, fishing effect is good, the power consumption is small, no noise, good corrosion resistance (frame is divided into carbon steel, stainless steel, the other parts for stainless steel), etc., in the unattended, ensure the stable and continuous work, routine maintenance support work rarely.