First, the product overview PN, PNL mud pump single-stage single-suction slurry pump (discrete, horizontal) with long life, simple structure, reliable operation and so on. It is used in mining, metallurgy, municipal construction, chemical industry, such as sucking sand, small mud mud, dirty liquid; also be used in rural river mud, pond mud, manure, In the city factory transport ore liquid, yellow sand and underground absorption of sand and so on. The maximum delivery concentration is 50% by weight. PN, PNL mud pump: 1PN, 2PN, 3PN, 4PN, 6PN, 2PNL, 3PNL seven. Second, the structure description (1) over-current part of the wear parts with wear-resistant cast iron, long service life. (2) The gap between the impeller and the guard can be adjusted in time to maintain a high working efficiency. (3) 4? The above type of pump bearings straight mounted in the horizontal open within the trust, dismantling convenient adjustment in a timely manner, and the water tank equipped with a water-cooled snake-shaped tube to improve the bearing working conditions.