Slurry pump is a fragile equipment, a little carelessness will greatly affect the performance and service life of the slurry pump, such as improper installation caused by vibration, pipeline pressure discomfort and other failures will cause damage to the slurry pump itself. The following we slurry pump installation safety technical measures to explain, I hope it will help you.
Slurry pump installation safety technical measures
1, using thin oil lubrication bearing, should be in the drive before the oil level line according to the oil mark refueling, winter plus (HL32) hydraulic oil, summer plus (HL46) hydraulic oil. Slurry pump continuous operation (800) hours after the bearing lubricant should be replaced once.
2, in the start slurry pump, the export gate valve should be (closed or slightly open 1/4). Slurry pump should be unfolded pump inlet valve and closed pump outlet valve before starting operation. And then start the pump, pump start and then slowly open the pump export valve, the size and speed of the pump export valve open, should be mastered by the pump does not vibrate and the motor does not exceed the rated current.
3, two-stage tandem pump secondary pump shaft seal form (packing seal), tandem with the pump start, also follow the above method. Just after opening a pump, submersible slurry pump, you can find the export valve of the last pump to open a little (open the size of the first pump motor current for the rated current of 1/4 appropriate), and then you can start the second three until the last pump, the tandem pump all start, you can gradually open the export valve of the last pump, the size of the valve open fast and slow, the pump should not vibrate and any one pump motor is not over the rated current to master.
4, the installation of a frequency converter with a slurry pump way. Specific transformation method: close the return valve, using the water level closed-loop control method, installed in the pool wall level sensor, the use of inverter PID regulation function, slurry pump, when the water level reaches, inverter frequency drop, slurry pump to low speed operation, the higher the water level, the lower the speed; the lower the water level, the higher the speed. At the same time, the water level signal will be sent to the control cabinet, so that the operator can understand the liquid level condition at the right time. Through this control to keep the circulation in the slurry pool basically unchanged.
5、To ensure the efficient operation of the submerged slurry pump, the gap between the impeller and the front guard must be adjusted regularly to keep it between (0.75-1mm). Pump in operation in addition to monitoring the flow, pressure, but also monitor the motor do not exceed the rated current of the motor. Monitor the oil seal, bearing, etc. at any time whether the phenomenon of conduction often occurs, whether the pump occurs pumping or overflow pool, etc., and deal with it at any time.
6, the pump body (can not) bear the pressure from the outlet piping system, the depot spare pump should be rotated weekly (1/4) turn, in order to make the shaft evenly subjected to load and external vibration, belt CR drive for the entrance from the pump to see the motor in the (right) side of the pump.
7, slurry pump mainly for the purpose of conveying flow, so in the operation of the monitoring system as far as possible to install the flow meter (meter), in order to monitor the flow at any time to meet the requirements; in the pipeline system equipped with cyclone, slag flushing system, filter press dewatering system also requires a certain pressure at the outlet of the pipeline. So, in this system should also be installed on the pressure gauge to monitor whether the pressure meets the requirements.
