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NAIPU MINING

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Heavy-duty slurry pump(NZJM)

The NZJM series slurry pump is a new generation of heavy-duty slurry pump, a heavy-duty slurry pump designed specifically for conveying the discharge from the mill to the cyclone. The structure adopts a horizontal double shell, and the inner shell is also a vulnerable part for over-current, which needs to be replaced periodically. According to the difference in working conditions, high-chromium metal or rubber can be used, but the impeller is generally made of high-chromium metal. Due to the discharging and conveying of the mill, the structure design adopts the overweight wear design. The hydraulic design uses ANSYS to calculate the solid-liquid coupling to predict the wear. At the same time, the large-diameter impeller design is adopted to reduce the working speed of the pump. Improve anti-wear performance.

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Product introduction

1. Product overview

The NZJM series slurry pump is a new generation of heavy-duty slurry pump, a heavy-duty slurry pump designed specifically for conveying the discharge from the mill to the cyclone. The structure adopts a horizontal double shell, and the inner shell is also a vulnerable part for over-current, which needs to be replaced periodically. According to the difference in working conditions, high-chromium metal or rubber can be used, but the impeller is generally made of high-chromium metal. Due to the discharging and conveying of the mill, the structure design adopts the overweight wear design. The hydraulic design uses ANSYS to calculate the solid-liquid coupling to predict the wear. At the same time, the large-diameter impeller design is adopted to reduce the working speed of the pump. Improve anti-wear performance.

2. Product features

1) Adopt the guard plate adjustable technology to realize the online adjustment of the gap between the impeller and the guard plate to ensure that the flow parts can continue to maintain a small gap after a certain amount of wear, reduce the return flow and the entry of large particles, and improve the flow parts Life span

2) According to the working conditions, the sheath can be made of high chromium metal or rubber. When the metal material is used, the pump structure adopts a single shell;

3) Some slurry pumps can be provided with clockwise and counterclockwise rotation of the structure to facilitate the layout of the outlet direction on site;

4) The horizontal double-shell design is also adopted, making on-site installation and maintenance more convenient;

5) The bearing assembly adopts a heavy-duty bearing design, grease lubrication, no external oil station is required, only regular maintenance and grease is required, the bearing assembly can be optionally equipped with additional temperature measuring components, which is convenient for on-site automatic control;

6) The shaft seal adopts simple and reliable packing seal. Due to the special working conditions, other sealing methods are not recommended;

7) The connection method between the pump and the motor can be belt, coupling, reducer, etc. according to the working conditions and site conditions;

8) This series of slurry pumps can only be used in single stage;

9) The outlet direction of the pump can be installed at eight angles to suit the pipeline installation on site.

3. Scope of application

1) This series of slurry pumps are heavy-duty slurry pumps dedicated to the discharge of mills, which are suitable for conveying the slurry from the grinding discharge to the cyclone in non-ferrous, ferrous and other metal mines;

2) The recommended single-stage head is less than 60m, and the maximum conveying head can reach 70m;

3) The maximum applicable mineral weight concentration is less than 65%;

4) When the rubber material flow parts are selected, the temperature of the conveying slurry is recommended not to exceed 70℃;

5) The pressure resistance value of the slurry pump does not exceed 900Kpa and can only be used in a single stage.

4. Specifications and flow range

At present, the NZJM series caliber ranges from 200 to 650, and there are a total of 8 specifications and models. The following table shows the best efficiency point of the NZJM series slurry pump at the corresponding speed. In actual use, you can adjust each caliber pump by adjusting the speed of the slurry pump. The scope of work, if it involves selection, please contact us.

Model

Flow

Q(m3/h)

Lift

H(m)

Rotating speed

n(r/min)

Water efficiency

(%)

200NZJM

1200

 

63.5

750

79

250NZJM

1990

66.5

700

79

300NZJM

2450

57

600

79

350NZJM

2950

43.5

475

79

400NZJM

3970

46.3

450

81.5

450NZJM

5650

50

400

83

550NZJM

7200

51.6

375

84

650NZJM

10680

46

325

87

 

Related case

Peru's Shougang Hierro 550NZJM slurry pump

ADD:52 xingyuan avenue, shangrao economic and technological development zone, jiangxi province, China

TEL:400-0793-789

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