Characteristics of centrifugal slurry pump:
1. Wide application of pump flow. This pump domestic several ten series and hundreds of types of products, choose the flow ranges from per hour dozens of cubic meters to thousands of cubic meters, single pump flow with the head of the magnitude of the change is also wider, type pumps can work under different traffic.
2. The centrifugal slurry pump has a wide adaptability to material. This pump is equipped with different materials or different structure, so that it is suitable for different concentration, hardness, grain size, temperature and acid and alkali. Especially clamp has large grain slurry is less than other pumps, and G (CM) series of Warman pump and some of the two-phase flow pump, entrainment conveying equivalent flow passage 1 / 2 ~ 3 / 4 of the large grain slurry body.
3. Delivery head is relatively low. The series configuration can make up for the defects of the head is low, but it is too many to be connected in series, the management is inconvenient, and the economy is not reasonable.
4. More vulnerable parts, more frequent replacement. Due to over-current components (sheath, leaf and a sealing structure) direct contact in a high velocity slurry. Therefore, more serious wear and tear, regular replacement of wearing parts (usually required reserve rate was 100% ~ 200%), maintenance and management cost is relatively high.
5. The centrifugal pump has the advantages of simple structure, light weight, easy operation, low cost and wide application range.
1). The centrifugal slurry pump, the water seal packing seal, Warman pump and two-phase flow pump with water seal packing seal and vice impeller seal two kinds of forms. Vice impeller seal usually need to increase about 5% of the power consumption, the seal form need to increase from 1% to 3% of the high pressure water consumption. For filling the pressure of a large pump and a series of two pumps can not be used in the form of auxiliary impeller seal.
2). Centrifugal slurry pump and volumetric efficiency is relatively low, especially in the small flow area is particularly low. Two-phase flow pump starting from the motion law of solid-liquid two-phase flow, improves the hydraulic condition, improve the efficiency of the slurry pump and reduces the abrasion rate.
Centrifugal slurry pump is generally used for short distance, low lift concentrate, tailings, ore, slag, sand, coal, sediment and solid slurry materials, lifting and conveying. Directly or indirectly connected in series, in the transmission distance of thousands of meters, and sometimes economic and reasonable, especially more applicable to large flow, grain size of the slurry pipeline system.
