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NZJAHPP High head &High Pressure pump

The NZJAHPP series slurry pump is a high-head and high pressure slurry pump, which is mainly used for long distance transportation of ore slurry, such as tailings. The capital cost of a series-connected centrifugal slurry pump can be significantly lower than that of a positive displacement pump and diaphragm pump. In addition, centrifugal slurry pumps can use multi-stage pumping stations in series, which reduces the pressure level of pipelines between pumping stations, which means that thinner pipelines can be used and the cost is lower. The centrifugal slurry pump is used as a tailing pump, and the slurry particle can reach 100mm, while the slurry particle requirement of the piston pump and diaphragm pump is less than 5mm. The NZJAHPP series slurry pump produced by NAIPU is a high-head slurry pump. The head of a single slurry pump can reach 100 meters or even 130 meters, but this is not the most suitable. Considering both wear and efficiency. The single head of the slurry pump is much lower than the maximum head. The NZJAHPP series slurry pump produced by NAIPU is a high-head slurry pump and is widely used in metal mines around the world, such as Philippines, Serbia, Congo, China, etc.

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Product introduction

NZJAHPP High head and High pressure pump

1, Overview

The NZJAHPP series slurry pump is a high-head and high pressure slurry pump, which is mainly used for long distance transportation of ore slurry, such as tailings. The capital cost of a series-connected centrifugal slurry pump can be significantly lower than that of a positive displacement pump and diaphragm pump. In addition, centrifugal slurry pumps can use multi-stage pumping stations in series, which reduces the pressure level of pipelines between pumping stations, which means that thinner pipelines can be used and the cost is lower. The centrifugal slurry pump is used as a tailing pump, and the slurry particle can reach 100mm, while the slurry particle requirement of the piston pump and diaphragm pump is less than 5mm. The NZJAHPP series slurry pump produced by NAIPU is a high-head slurry pump. The head of a single slurry pump can reach 100 meters or even 130 meters, but this is not the most suitable. Considering both wear and efficiency. The single head of the slurry pump is much lower than the maximum head. The NZJAHPP series slurry pump produced by NAIPU is a high-head slurry pump and is widely used in metal mines around the world, such as Philippines, Serbia, Congo, China, etc.

2, Features

2.1 Double-shell design

This design is important for high pressure slurry pumps. The outer shell is designed to withstand all internal pressures, and even when the wet end material is completely worn, there are no strength issues.

2.2 Bearing assembly

NS (we use TIMKEN bearing)

1, The carrying power can be designed according to requirements; 450NZJAHPP, maximum carrying power is 2000kw.

2, Speed can be designed according to requirements;

3, Grease lubrication;

2.3 Compared with NZJAH series, the thickness of the cover plate is thicker. In concrete implementation, it is also necessary to combine the arrangement of the ribs, preferably through strength finite element analysis.

2.4 More and bigger studs for pump cover. Especially the studs specially arranged in the compartment are the distinguishing features of the slurry pumps.

2.5 When using rubber wet parts material, the design needs to be improved to prevent leakage and prevent water hammer from being pulled out. The sealing flanging of front and back jacket should be thickened.

3, NAIPU Design capacity

 

FLUENT technology and EDEM technology are applied to fully optimize the impeller, cover plate liner and frame plate liner, etc. to obtain high efficiency and overcome local wear. The three-dimensional modeling adopts UG.

 

3.1 Model building and meshing

1. UG three-dimensional modeling, extracting and calculating water bodies;

2. The grid adopts hexahedral unstructured grid and is divided by ICEM software.

3.2 Model building and meshing

1, Calculation model

2, ANSYS-FLUENT calculation model software analysis;

MRF under multiple coordinates is used to solve the problem, and the turbulence model uses RNG;

3, The momentum equation and the continuity equation are solved simultaneously using the SIMPLEC algorithm.

3.3 Estimation of head efficiency

3.4 EDEM particle trajectory/FLUENT discrete phase DPM

3.5 Use three-dimensional (3D) software UG to design full three-dimensional (3D) structure. The shell strength analysis adopts ANSYS-FLUENT fluid-solid coupling calculation, and the static pressure distribution calculated by FLUENT is used as the initial condition of the strength and calculation.

3.6 For large projects, we will carry out three-dimensional site layout according to the customer's existing site, so as to realize the customer's intuitive understanding of what the project will look like after completion.

3.7 Equipped with a visual PLC monitoring system, it allows operators to better operate the high-head pump for tailings transportation.

4, Applications

4.1 Kamoa copper mine in Cango. 

4.2 Carmen Copper Corporation in Philippines

4.3 China National Gold Group Co., Ltd. 

Related case

ADD:NO.318,JingKai Avenue,Shangrao Economic and Technological Development Zone,Shangrao City,Jiangxi Province,China

TEL:400-0793-789

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