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2020
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How to Use a Lead Pump
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The design of the lead pump takes into account numerous factors, such as the high temperature of molten lead, its significant density, and its tendency to solidify easily. Proper usage of the lead pump will ensure its long-term reliability. The operational steps for using the lead pump are as follows:
Lead pump The design takes into account numerous factors, such as the high temperature, significant density, and tendency to solidify of the molten lead. The correct method for using a lead pump will ensure its long-term durability. Here are the operational steps for the lead pump:
1. Before extracting the lead, a visual inspection of the extraction point is mandatory. Lead pump Turn the handwheel, confirm there are no unusual sensations, then turn on the power and check whether the rotation direction of the lead-extraction pump matches the marked direction.
2. Use lifting equipment to hoist the lead pump, then slowly lower it vertically into the lead solution (at this point, the pump cannot be powered on). The bottom surface of the pump casing is immersed in the lead solution by approximately 200-300mm The depth.
3. When drawing Lead pump When immersed in the lead-extraction pump, the liquid conductive fluid immediately solidifies on the pump body, locking the rotating shaft, impeller, and pump casing in place. This is caused by the low temperature of the pump body. Whether the liquid solidifies or not doesn’t matter—by this point, the pump can remain stationary in the molten lead and simply oscillate back and forth to accelerate the melting of the solidified lead. This period marks the preheating phase for the lead pump; once the pump body temperature and the frequency-conversion fluid temperature reach equilibrium, the preheating process naturally ceases.
4. Immerse the lead-pumping body into the lead pump. 5-10 A few minutes later, turn the handwheel with your hand. If the drive shaft rotates freely at this point, it means the solidified lead had already melted when it was placed inside.
5. After the guide pump is powered on and starts rotating, the pump port may not immediately deliver fluid. This is the heat exchange process between the lead export pipe and the molten lead, or the automatic adjustment process of the pump body clearance. If pumping 5-10 If no molten lead flows out after a few minutes, you can then increase the depth to which the lead pump is submerged in the molten lead—but the maximum depth should not exceed 400mm。
6. During the lead extraction process, the lead pump must also be lowered as the lead level drops, ensuring the proper immersion depth.
7. When it's time to stop pumping lead, you must first disconnect the power supply to the lead pump, and then turn off the pump. Lead pump Extracted from the molten lead. After the guide fluid in the guiding catheter returns, immediately restart the lead-extraction pump to remove the impeller. It’s important to note here that once the lead-pumping device stops rotating, it is highly likely to become locked again. This residual lead solidification caused by the shaft-to-sleeve clearance is within the normal range. When using it next time, you can refer to the above-mentioned item # 3 A method to resolve it.
8. The lead pump, after lead extraction and due to its high temperature, should be temporarily paused for cooling. Before the temperature drops significantly (about 30 Minutes), it is strictly prohibited to lower the pump body of the pilot pump, as this could lead to impact damage and deformation in the future, affecting its functionality.
Lead pump
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Henan Yuguang Metallurgical Machinery Manufacturing Co., Ltd
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No. 888, West Section of North Ring Road, Kejing Town, Jiyuan City