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ZN dredging pump is a new type of sand sludge pump researched and manufactured by China. ZN pump is a single-stage single suction cantilever horizontal centrifugal pump.
With advantages of light weight, good wear-resistance, super dredging performance, perfectly suit for dredge on the whole construction, high multiple economy benefits. It throughout meets requirements of the dredge to dredging.
Overview
ZN dredge pump is new type of single-stage, single suction, cantilever horizontal dredge pump. It is composed of a pump head, reducer gear box, high elastic coupling, and marine transmission monitoring system. With advantages of high efficiency, wear resistant, excellent performance, It is designed for handling more abrasive with solids slurries in the river dredging, sand reclamation, explosive sludge in metal melting, dredging in dredger and course of river and other fields.
▲Model Meaning
ZN600 ZN: Zidong Pump High Efficiency Dredging Pump
600: Discharge size in mm
| Pump model | ZN600 dredging pump |
| Inlet&Discharge size | 28X24 inch |
| Flow range | 5000-9500m3/h |
| Head range | 55-80m |
| Speed range | 280-420rpm |
| Power in max | 1500kw |
| Solid handling | 280mm |
Feature
1. Cantilevered, horizontal, centrifugal, one stage, single casing pump;
2. The inlet diameter is 28 inches and the outlet is 24 inches. The inlet is bigger, which can increase the flow capacity
and working efficiency and reduces cavitation.
3. High head, large capacity, high efficiency, good NPSH performance;
4. Long bearing life, the bearing assembly with large diameter shaft and short overhang;
5. Wear-resistant wet parts, the wet parts are made of Ni hard and high chromium abrasion resistant alloys.
(more than 27% Chrome alloy);
6. The shaft seals can be gland seal or Lip seal;
7. Bearing lubrication: thin oil lubrication, equipped with professional lubrication system, can improve the service life
and stability of bearing components.
8. The discharge branch can be positioned at interval of 45 degrees by request and oriented to any eight positions to
suit installations and applications.
Structure
Specification
| Model | ZN dredging pump performance table | ||||||
| Capacity | Head | Speed | Efficiency | NPSH | Outlet/Inlet Diameter | Max Particles Size | |
| (m3/h) | H(m) | n(r/min) | η(%) | (m) | (mm) | (mm) | |
| ZN250 | 300-1600 | 35-80 | 490-750 | 70-74 | 4 | 250/350 | 144 |
| ZN300 | 1800-3000 | 40-65 | 425-550 | 74-78 | 4 | 300/450 | 241 |
| ZN350 | 2600-3000 | 40-65 | 400-550 | 74-78 | 4.5 | 350/450 | 205 |
| ZN400 | 2800-3200 | 20-40 | 400-550 | 74-78 | 4.5 | 400/450 | 200 |
| ZN450 | 3200-3850 | 40-67 | 350-500 | 76-80 | 4.5 | 450/600 | 254 |
| ZN500 | 4500-5500 | 40-65 | 350-450 | 78-80 | 4.8 | 500/650 | 250 |
| ZN600 | 5000-9500 | 55-80 | 280-420 | 84-85 | 6 | 600/660 | 280 |
| ZN700 | 8000-12000 | 60-85 | 280-380 | 83-85 | 6 | 700/760 | 300 |
| ZN800 | 10000-15000 | 60-70 | 260-360 | 79-80 | 6 | 800/850 | 320 |
| ZN900 | 12000-19000 | 50-75 | 280-330 | 85-87 | 6 | 900/960 | 340 |
| ZN1000 | 16000-25000 | 23-76 | 181-290 | 85-87 | 6 | 1000/1200 | 350 |
Application
Zidong high efficiency horizontal dredge pump are designed for heavy duty applications
such as mining, power sector, dredging river, and tailings as well as specialty applications,
which are used for continuous pumping of high abrasive, high density sand and gravels.
| Mineral Processing | Power Generation | Aggregate |
| Ash Handling | Flue Gas Desulfurization | Thickener & Tailings |
| Mine Dewatering | Industrial Slurries | Dredge |
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