The main components of the NL type submerged mud pump are composed of a volute, an impeller, a pump seat, a pump casing, a support cylinder, a motor base, and an electric motor. The volute, pump seat, motor base and impeller nut are cast iron, have good corrosion resistance and convenient processing. The impeller is a three-piece single-chord curved blade. The semi-closed impeller is used, and the malleable cast iron is used, so the strength is high and corrosion resistance; the processing is convenient, the passability is good, and the efficiency is high. In order to reduce the weight and reduce the amount of turning, the NL mud pump pump shaft is made of high quality carbon steel cold drawn steel. The long shaft mud pump pump seat is equipped with four skeleton oil seals and bushings to avoid shaft wear and extend the service life of the shaft. The sewage cement pump can be used straight or skewed. The floor space is small, the volute needs to be buried in the working medium, and it can be easily started without water diversion. The direction of rotation should be clockwise from the tail of the motor.
NL type submerged mud pump use range:
1. Sewage slurry pump is used in mining, paper making, printing and dyeing, environmental protection, graphite, mica, gold, ceramics, oil refining, petroleum, chemical, farm, salt field, dyeing, brewing, food, fertilizer, coking plant, construction, marble factory. , gold mines, mud, quicksand, mud ponds, sewage ponds, turbid liquids to send thick slurry thick liquid, loading and suspended materials sewage work, can also be used for coal mine drainage and mud-rich fluid.
2. If it cooperates with high-pressure water pump and water gun to form a hydro-mechanized earth-moving engineering unit, it can be used for land leveling, excavation and transportation of small water conservancy projects such as dredging and ponding of rivers and ponds, and urban air defense works. engineering.
Installation of NL submerged mud pump:
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2, the skeleton oil seal must be filled with butter and put into the pump seat, and then install the bearing.
3. Apply a butter to the 0-ring seal inside the bushing.
4. Put it on the motor base, put the paper pad, the oil retaining ring, and install the shaft and the support cylinder with screws.
5. Put the paper pad, install the bearing, bushing, key, pump seat and impeller. After tightening the impeller nut, turn the impeller by hand and turn it flexibly.
6. Put the paper pad on the pump casing, fix it with screws and install the filter. Then pull the impeller by hand and turn it flexibly.
7. Install the key and the driven coupling on the pump shaft, install the key and the active coupling on the motor shaft, and then fix the motor and the motor seat bolt. After installation, the axial clearance between the active coupling and the driven coupling should be 1~1.5 mm.
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