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Hebei Zidong Pump Industry Co., Ltd.

SB70 Drive Mine Centrifugal Mining Slurry Pump Applications

Currently the major mines concentrator. Slurry used mostly centrifugal slurry pump. Its structure is basically the same and centrifugal slurry pumps. But in the pipeline and the general water supply network is quite different. Because the flow of liquid inside the pipe network has been abandoned ore slag after the ball mill. And the wall of the pump wear large. This requires the pump and pipe network has a high abrasion resistance. So slurry pump casing inner wall and the wall of the pipe network necessary through special processing technology.


The terrain is generally slightly higher than the mounting position tailings slurry pump. Thus, the output of the pipe network with a check valve. Avoid pulp reflux pump stops. Design, slurry flow rate is greater than the amount of discharged waste slurry pool. If the slurry pump has been running. It may cause sludge slurry pumping enough pool pump idling. But do not make the gap slurry pump operation. This will make the slag precipitation. Thus, at the output of the pump has a valve regulating the amount of slag size. According to production needs to adjust the size of the flow of slurry pump.


Switching of the valve size is much need for the operator to be adjusted according to the slurry generated in the production process. Similarly, the valve is opened wide. It may cause sludge slurry pumping enough pool pump idling. Valves open too hours. Make slurry tank filled to overflow. Regardless of how the flow of slurry pump. Motors can operate at full speed. With throttle valves is simple. But it increases the damping pipe. Wasted energy.


For energy conservation, using pile drive slurry pump speed control. Simply open the valve to the maximum. Minimum damping pipe network. Automatic level control signal slurry tank. Adjust the frequency of the inverter. At present, the level control sensors are often used in two ways. One is by the transmitter will be converted into 4 ~ 20ma analog signal level pressure sensor for liquid slurry pond depth signal. Another is to use the level relay. Level relay has high, medium and low three contacts corresponding to high slurry pool, the three low level. Former high price level can be precisely controlled at a certain height. The latter price is cheap. Only control the slurry level in the pool between high, medium and low variability. In order to save costs. Selected liquid level relay as level sensors. Fully able to meet the production process requirements.


The use of liquid level detection relay concentrator slurry pool level. High level relay, medium and low three nodes connected to the drive x1, x2, x3 input contacts. Its control process is as follows: When the liquid level in the "low" or less. 25hz frequency inverter to operate. If the slurry pump flow is less than the amount of waste input. Slurry tank liquid level rises gradually. Level rise "Low" when. 38hz frequency inverter to operate. If the slurry pump flow rate is still less than the amount of waste input. Slurry tank liquid level continues to rise. When the liquid level rises "in the position." 50hz frequency inverter to operate. Usually slurry tank level does not exceed the "high." In this case, if the slurry pump flow is greater than the amount of waste input. The slurry tank level decreased. When the level drops below the "median." 38hz frequency inverter to operate. If the slurry pump flow rate is still greater than the amount of waste input. Slurry tank liquid level continues to drop. When the level drops below the "low." 25hz frequency inverter to operate. It is seen by the above process, the liquid level rises and falls over the course of high different in three low level switching frequency. It avoids the switching point due to fluctuations in the level of short-term occurrence of repeated switching. That is the shock.


When selecting inverter, taking into account the load characteristics of slurry pump. That sludge waste contains more specific gravity than water impurities. You can not use the inverter fan, water pump dedicated inverter. It should be used with a constant torque converter universal mechanical properties. So inverter selected Senlan sb70 general inverter.

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