SMWN700 Dredging Pump

SMWN700 Dredging Pump

•      Product Introduction

SMWN700 dredging pump is a single-stage, single-suction, cantilever, double casing horizontal centrifugal slurry pump whose outlet diameter is 700mm. The double pump casing design keeps the volute liner can be used to close to wear out, and when the liner was broken, no water will enter the pump room. The gear box is connected with own bearing bracket. Lubrication way is mandatory thin oil lubrication. The flow passage of the impeller is wide through the capacity, so it is difficult to block for pumping sand gravel or high plastic clay. It has super strong excavation and suction ability. This kind of slurry pump is simple and reliable in structure, easy to disassemble and maintain with high chrome cast iron parts, which has a long trouble-free life. 

SMWN700 is a marine dredging pump for dredging of river and sea. It is suitable for dredging and filling operations of cutter-suction dredger and trailing suction dredger. It is also used as gravel sand pump for river sand mining and mining vessels.

•    Model meaning:  For example: SMWNS600 (WN: WN series Dredge Pump; S: Submersible Pump; 600: Discharge Diameter (mm).)

•     Product Feature

1. The structure is simple and reliable.

The pump adopts double pump casing structure, with its own bracket. The safety and reliability of the double pump casing design keeps the volute liner can be used to close to wear out, and when the liner was broken, no water will enter the pump room.

2. Easy to assemble and disassemble and easy to maintain. The front dismantling structure is adopted, and special disassembly tools are equipped to facilitate disassembly and assembly.

3. The performance of dredging is excellent. The flow and head curve of the pump is steep, the suction ability is strong, the ability of passing the pump is good, the change of the distance is more applicable, and the depth of digging and the higher transportation concentration can be reached.

4. Excellent wear resistance and long life of flow wear parts. The impeller, volute liner, throat bushing and rear plate liner (wearable liner) are made of tough wear resistant alloy cast iron whose hardness is not less than 58HRC.It has not only impacted on resistance but also high anti-abrasion performance.

5. Adopted advanced hydraulic model, the pump has low hydraulic loss, high efficiency and low energy consumption. The service life of each part is fully considered in the process of product design. The same replacement cycle reduces the maintenance and replacement costs.

6. The shaft seal is reliable and no leakage.

The shaft seals adopt screw shaft sleeve with L-shaped rubber seal device, which consists of three L-shaped seal rings and one threaded shaft sleeve.

        1      Bearing box                       

        2      Bearing                     

        3      Screw shaft sleeve           

        4      L-shaped seal assembly    

        5      Seal box    

        6      Rear plate liner                  

        7      Shoulder ring             

        8      Volute liner                    

        9      Discharge lining pipe       

       10      Frame plate     

       11      Gland cover plate             

       12      Cover plate               

       13      Throat bushing             

       14      Water sleeves                 

       15      Wear ring    

       16      Impeller                                 

       17      Intake lining pipe             

       18      Seal box protecting ring              

       19      Sand control plate      

       20      Impeller release collar       

       21      Shaft                        

       22      Thrust collar              

       23      Impeller release collar    

       24      Turning plate

•      Range of Performance

Capacity     Q:8000-12000m³/h

Head          H:60-85m

Discharge diameter: 700mm

•      Performance Curve

•      Outline Drawing