Single-stage slurry pump operating practices and troubleshooting

Whether it is a single-stage slurry pump or a multistage slurry pump, it is only by strictly observing the operating specifications that it will work more efficiently. Not only that, but also always check the machinery and equipment in operation may encounter problems and find the reasons, to be repaired. Single-stage slurry pump operation specifications and troubleshooting (A) Single-stage slurry pump operation specifications 1. Operators must master the slurry pump technology and operation, master slurry pump and other equipment and facilities simple maintenance knowledge , Can only post operation. 2. Appropriate to wear and use labor insurance products before appointment. Including helmets, safety shoes, overalls, gloves and more. 3. Before starting the pump should check the screws of each component is solid, and all the fuel injection point all the oil. 4. Check the pump and motor safety devices such as equipment must be complete and reliable, otherwise not allowed to drive. 5. Pump operation, prohibit the rotating parts of the maintenance, cleaning, refueling and other work; is prohibited by hand touch the rotating parts. 6. Tight packing, pay attention to the rotation of the site, to prevent amputation. 7. Pump start before turning the car; check the wheels, the ground screw loose, accessible only when the transfer, turning parts are not allowed to approach. 8. Prohibition of the use of crowbar disc car, chain car must use chain clamp or pipe clamp. 9. In operation, always check the pump and the pipeline is smooth, pay attention to changes in the concentration of ore sent to prevent high concentrations of transport. 10. Parking in winter, water in pumps and lines must be drained. 11. To maintain the equipment for maintenance and repair, it is necessary to cut off the power and hang the safety warning sign on the power distribution box, and have a special guardianship. (B) single-stage slurry pump troubleshooting Slurry pump in operation there are four common failures: corrosion and wear, mechanical failure, performance failure and shaft seal failure, these four failures are often the impact of such as impeller corrosion and Wear and tear can cause performance and mechanical failure, shaft seal damage can cause performance failures and mechanical failure First, the main erosion or wear and tear should be considered from both the media and materials for wear parts wear to a certain extent should be replaced when the two , The main mechanical failure is vibration and noise, the main reasons are: bearing damage, cavitation, poor assembly Third, the performance of the main flow refers to the flow, lack of head Pump cavitation and drive overload and other accidents Fourth, the main shaft seal Seal Leakage occurred 1, bearing fever. A, excessive oil, too little or bad will cause the bearing fever, oil and oil should be modulated the appropriate B, check the unit is concentric, adjust the pump and prime mover on C, if the vibration anomalies, should check the rotor is balanced 2 , Causes the slurry pump does not output the reason of the slurry and the processing method. A, the air sucked into the pipeline or pump should be filled with liquid exhaust air B, import and export side of the pipeline valve is closed or not remove the blind, should open the valve to remove the blind C, the use of lift is higher than the maximum pump Lift, should replace the head of the pump D, impeller rotation direction error should be corrected motor rotation direction E, the suction height is too high, should reduce the pressure at the entrance to reduce F, debris clogging or suction pipe is small, should remove the plug plus Large diameter G, speed does not match, should adjust the speed to meet the requirements 3, leading to inadequate flow lift causes and treatment A, impeller damage, replace the impeller B, seal ring damage too much, replace the seal ring C, the import outlet valve is not fully open , Should be fully open D, the medium density and pump requirements do not match, recalculate 4, sealing leak serious causes and treatment methods A, sealing material selection improper, replace the appropriate components B, severe wear and tear, replacement of wear parts, and adjust the spring Pressure C, O-ring damage, replace the O-ring 5, the cause of the motor overload and treatment A, pump and prime mover (motor or diesel output) Misalignment So that the two medium B, the relative density of the medium becomes larger, change the operating conditions or replace the appropriate power of the motor C, the friction part of the rotation, repair the friction part D, the device resistance becomes low, biased to a large flow, Valve to obtain the specified traffic on the signage (Editor: Huang Nengwen QQ:)

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