1. Empirical methods to analyze the factors that may cause the vibration of the centrifuge. Due to the imperfections in the design, manufacture and maintenance of the three-legged centrifuge, especially due to improper operation, mechanical damage or excessive wear during use. The centrifuge is easy to cause vibration, and the empirical analysis of the factors causing the vibration has the following points.
1.1 Centrifuge parts factors (1) The main bearing wears after a period of use, the radial clearance gradually increases, causing the main inertia axis to deviate from the center of the rotating shaft and cause vibration of the machine. In addition, the assembly quality of the bearing during the installation process It is not guaranteed, overload operation and rupture damage caused by bearing quality and life problems can cause machine vibration.
(2) The scraper wears after use, and the contact area with the material layer increases, which causes the discharge resistance to increase and the blade to loosen and cause the discharge vibration.
(3) Due to the damage of the feeding valve, the feeding valve is too much feeding, the speed is too fast, etc., which may cause the machine to overload and run to generate vibration.
(4) Loose anchor bolts are also a common fault, which not only causes vibration of the equipment, but also breaks the anchor bolts.
1.2 Man-made control factors Because the operator feeds too much or is too dry and the PVC plasticized sheet is blocked, the machine vibrates. In addition, the operator should check whether the filter is damaged. If it is damaged, it should be replaced in time because the filter Damage can also cause the centrifuge to vibrate.
2, after the analysis of the centrifugal vibration of the centrifuge, generally use manual scraper to discharge, and then enter the manual cleaning drum to process, after the drum is cleaned, the vibration can usually be better eliminated, but if Strong vibrations occur, and the operator often causes the anchor bolt to vibrate because the reaction is not timely or too late to process.
To this end, we have analyzed the vibration. The centrifuge can run smoothly after being cleaned and loaded with no load and even vibration. This eliminates the possibility of vibration caused by the damage of the centrifuge parts. After repeated cycles, the effect of automatic flushing of the drum is not good, causing most of the filter holes to be blocked. When the feed is taken, the liquid phase in the feed liquid cannot be discharged in time, and the large centrifugal force is the main cause of the vibration of the centrifuge.
3, three-legged centrifuge common faults and causes (1) centrifuge vibration reasons: 1 anchor bolt loose; 2 body bolt break; 3 too much feed; 4 material is too dry; 5 filter damage; 6 bearing damage .
(2) Reasons for vibration when the empty car is running: 1 The machine is filled with solid phase after the valve is leaked due to the leakage of the valve on the feeding pipe; 2 the solid phase sediment remains on the spiral because it is not cleaned during the parking; 3. The parts of the drum and the differential are loose.
(3) The reason for the vibration of the feeding operation of the centrifuge: 1 due to the uneven feeding amount of the solid phase material; 2 the movement relative to the rotating drum due to the incorrect screw fixing; 3 the unevenness of the spiral blade wear.
4. Measures and effects of preventing vibrations Minimizing the unbalanced centrifugal force is the fundamental solution to the problem of centrifuge vibration. For this reason, our company takes the following measures:
(1) Strengthen the operation control, sample and analyze each shift to improve the quality of the liquid and make the cloth as uniform as possible.
(2) Strictly control the quality of the large washing. Take the combination of automatic cleaning and manual cleaning, that is, after the second automatic washing, perform a manual washing, and check the cleaning quality after washing.
(3) Regular inspection and cleaning of the filter to ensure the filtration effect and prevent the dirt from clogging the flushing tube.
1.1 Centrifuge parts factors (1) The main bearing wears after a period of use, the radial clearance gradually increases, causing the main inertia axis to deviate from the center of the rotating shaft and cause vibration of the machine. In addition, the assembly quality of the bearing during the installation process It is not guaranteed, overload operation and rupture damage caused by bearing quality and life problems can cause machine vibration.
(2) The scraper wears after use, and the contact area with the material layer increases, which causes the discharge resistance to increase and the blade to loosen and cause the discharge vibration.
(3) Due to the damage of the feeding valve, the feeding valve is too much feeding, the speed is too fast, etc., which may cause the machine to overload and run to generate vibration.
(4) Loose anchor bolts are also a common fault, which not only causes vibration of the equipment, but also breaks the anchor bolts.
1.2 Man-made control factors Because the operator feeds too much or is too dry and the PVC plasticized sheet is blocked, the machine vibrates. In addition, the operator should check whether the filter is damaged. If it is damaged, it should be replaced in time because the filter Damage can also cause the centrifuge to vibrate.
2, after the analysis of the centrifugal vibration of the centrifuge, generally use manual scraper to discharge, and then enter the manual cleaning drum to process, after the drum is cleaned, the vibration can usually be better eliminated, but if Strong vibrations occur, and the operator often causes the anchor bolt to vibrate because the reaction is not timely or too late to process.
To this end, we have analyzed the vibration. The centrifuge can run smoothly after being cleaned and loaded with no load and even vibration. This eliminates the possibility of vibration caused by the damage of the centrifuge parts. After repeated cycles, the effect of automatic flushing of the drum is not good, causing most of the filter holes to be blocked. When the feed is taken, the liquid phase in the feed liquid cannot be discharged in time, and the large centrifugal force is the main cause of the vibration of the centrifuge.
3, three-legged centrifuge common faults and causes (1) centrifuge vibration reasons: 1 anchor bolt loose; 2 body bolt break; 3 too much feed; 4 material is too dry; 5 filter damage; 6 bearing damage .
(2) Reasons for vibration when the empty car is running: 1 The machine is filled with solid phase after the valve is leaked due to the leakage of the valve on the feeding pipe; 2 the solid phase sediment remains on the spiral because it is not cleaned during the parking; 3. The parts of the drum and the differential are loose.
(3) The reason for the vibration of the feeding operation of the centrifuge: 1 due to the uneven feeding amount of the solid phase material; 2 the movement relative to the rotating drum due to the incorrect screw fixing; 3 the unevenness of the spiral blade wear.
4. Measures and effects of preventing vibrations Minimizing the unbalanced centrifugal force is the fundamental solution to the problem of centrifuge vibration. For this reason, our company takes the following measures:
(1) Strengthen the operation control, sample and analyze each shift to improve the quality of the liquid and make the cloth as uniform as possible.
(2) Strictly control the quality of the large washing. Take the combination of automatic cleaning and manual cleaning, that is, after the second automatic washing, perform a manual washing, and check the cleaning quality after washing.
(3) Regular inspection and cleaning of the filter to ensure the filtration effect and prevent the dirt from clogging the flushing tube.
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