Yellow River Marine Sand Suction Pump Maintenance Process

Tai’an Ocean Pump Co., Ltd. (referred to as OCEAN PUMP) is a professional manufacturer who has been dedicated to designing and manufacturing sand pumps like marine sand suction pump and sand dredgers for about 20 years. Meanwhile, marine sand suction pump maintenance is one of the main products of OCEAN PUMP. Our technical engineers are not only proficient in sand pump assembly, but also experts in marine sand suction pump maintenance. Since the establishment of OCEAN PUMP, we have continued to serve our customers, ensuring that every running sand suction pump is stable and efficient. Through repairing different types of sand pumps across the country, our technical engineers can make other brand sand pump machines continuously serving for longer life.

 OCEAN brand marine sand suction pump is specially designed by the Yellow River River Bureau water conservancy experts for the Yellow River dredging. Marine sand suction pump has the features of wide adaptability, high efficiency, large sand output.

On August 23, 2016, one customer from Henan purchased the 250PNS-35 high wear-resistant alloy sand pumping equipment for the Yellow River dredging. The sand dredging pump was stable for one and a half years and pumped sand 1.5 million cubic meter. Recently, the customer reported that there was water seepage at the sand pump’s back cover and front cover during operation. Our workshop director judged that the back cover and the front cover had wear and tear, and somewhere has been worn through so there was water seepage.  We suggested the customer came to our factory for repair and accessories replacement.

On March 22, 2018, the customer delivered the sand pump unit to our factory. The overhaul process was as follows:

Overhaul for Marine Sand Suction Pump Suction Pipe, Front Cover, Front Guard Plate.

1. It was found that the suction port had a small area of wear. Considering the replacement cost, we repaired and polished with the pig iron electrode. It still could be used for a long time by this way.
2. The front cover has been worn out and has no maintenance value. We recommended to replace it.
3. The outer side of the front plate is thin and grooved, it should be replaced.

Overhaul for Marine Sand Suction Pump Casing and Impeller.

1. There is cavitation above the pump casing , but the pump casing is thicker. Considering the maintenance cost, we recommend to keep it and replace in the next overhaul.
2. The impeller wear is light, there is slight cavitation. We recommend to keep it. If there is wear leakage, it is recommended to replace it.

Overhaul for Marine Sand Suction Pump Rear Guard Plate, Rear Cover and Auxiliary Impeller

The rear cover had a large-area through-hole, and the rear guard plate has been thinned. It has no maintenance value and is recommended to be replaced.

Overhaul for Marine Sand Suction Pump Shaft Assembly.

1. Our engineers judge the bearing are running well through turning detection and axle deviation tester. It does not require to be replaced, but only simple maintenance.
2. The bushing, water injection ring, disassembly ring, water retaining plate, oil seal and other parts should be replaced.
   
   
   
   
   
   
   

After replacing all the parts, adjusting the impeller clearance, turning and pressure testing, we delivered the sand pump unit to working site.

Sand pump machine maintenance is also a sign of testing the strength of a sand pump factory. The skilled workers judge the life and wear of the parts by accurately grasping the working site. Sand pump repairing is not only the assembly technology, but also the supporting ability. OCEAN PUMP not only has a mature engineers team for type selection, but also an excellent technical engineers team. The team can cooperate with each other to better serve customers. .

OCEAN PUMP is a leading domestic manufacturer of sand pump machine, slurry pump, mud pump, sediment pump, sewage pump, dredging pump and sand dredger. The company integrates independent research and development, equipment manufacturing, pre-sales and after-sales service. The company’s business covers a full range of sand-absorbing and dredging projects. The products cover more than 500 specifications in 20 series, and the products are exported to 36 countries and regions. OCEAN PUMP has won the praise and trust of customers with rich industry experience, professional technology and excellent service.