The timely inspection and adjustment of the decanter centrifuge before operation or during the stoppage time of the operation is an important guarantee for keeping the decanter centrifuge in good running condition and an important part of machine maintenance.
- Regular inspectionof decanter centrifuge
(1) Regularly check the gaps between the pusher plate, scraper and drum filter. The gap between the scraper and the screen should be within 5~7mm, and the axial clearance of the scraper blade from the bottom of the drum and the liquid blocking plate is about 4mm.
(2) Detect the vibration of the fuselage every 7 to 15 days.
(3) Check whether the safety interlocking device is sensitive and easy to use every 3 months.
(4) Check and clean the oil filter every 3 months to ensure that there is no grease, water scale, and sand.
(5) Analyze the quality of lubricating oil every 3-6 months to ensure that the quality of lubricating oil meets the standard.
(6) Check and verify whether the instrument device meets the performance parameter requirements every 12 months to ensure that the instrument device is accurate, sensitive and easy to use.
- Decanter centrifuge adjustment
(1) Adjustment of the working pressure of the oil pump Adjust the relief valve to keep the output pressure of the oil pump at 1.6MPa (gauge pressure).
(2) When the working position of the scraper is adjusted when the piston rod in the scraper cylinder goes down and hits the bottom cover of the cylinder (that is, when the piston is at the bottom dead center position), the roller on the crank of the scraper device should touch the travel switch. The distance between the blade and the screen (surface screen) in the drum should be kept at 5~7mm. This distance is achieved by adjusting the travel switch on the door cover and the nut on the piston rod in the scraper cylinder. Adjust the fastening screw of the scraper blade to connect the knife holder so that the axial gap between the two ends of the blade and the bottom of the drum and the liquid blocking plate is approximately the same, about 4mm.
(3) Rotary drum loading amount The thickness of the material layer is determined by different materials, but it should not exceed 120mm.
(4) Adjustment of process duration During automatic operation, the time relay knob in the electrical console can be adjusted according to different materials and corresponding process requirements to realize the duration of each process and the total time to complete a work cycle.