Horizontal sand suction pump is used to transport the sand and soil in the field with sand transporter, arrive at the local, and then mix the solid liquid through a high-pressure water gun and horizontal sand suction pump to achieve a high concentration of long-distance transportation. The sand suction pump sand transporter has the advantages of simple operation, environmental protection and energy saving, high efficiency and durability.
Some customer asked, How to Unload Sand Ship with Horizontal Sand Pump? Do we have mature experience? The following is a customized solution for horizontal sand suction pumps used for ship sand unloading.
1. Horizontal Sand Suction Pump Order Background
Haiyan County, Jiaxing City, Zhejiang Province is located in Hangzhou Bay, adjacent to the Hangzhou Bay Bridge. Due to environmental protection requirements, local sand mining is under control. There is an urgent need for a batch of sand and gravel for construction, so it is necessary to buy sand from other places and transport it to the local area by sand transporter, and then use a conveyor belt or a small mud pump to unload the sand, but this method is inefficient and costly. Prompt solution is needed urgently for the sand loading from ship.
2. Why Choose Horizontal Sand Suction Pump for Sand Ship Unloading?
On April 10, 2018, the customer came to Tai’an Ocean Pump Co., Ltd. and put forward construction requirements: fast sand unloading speed, 6 water guns, and discharge distance of 600 meters to 1,300 meters. After the Marine pumping engineer made actual measurements of the local sand transporter，According to the requirements of sand discharge, a sand discharge scheme of 350PNS-35 horizontal sand pump was designed. Finally, 350PNS-35 horizontal sand suction pump is selected for sand pumping. The engineers of our company showed the plan of sand (mud) transporter to customers, that is, to build a new boat, with 350PNS-35 horizontal sand suction pump and 350S44 high pressure water pump arranged in the cabin. Use the hydraulic operating lever to move the high-pressure water gun and the sand suction pipe, and then realize the sand unloading work of the sand transporter. This method is the sand unloading plan jointly developed by Tai’an Ocean Pump Co., Ltd.and Yancheng HeXinghua Shipyard, now it has been successfully promoted and operated for a long time in the middle and lower reaches of the Yangtze River and the Huangpu River area.
The customer recognized this scheme very much, but raised concerns about shipbuilding costs and delivery time, hoping to realize the idea of unloading sand at the terminal. Through the construction simulation on the field site, the engineers of our company put forward the scheme of placing the horizontal sand suction pump on the wharf and using the manual hand-held high-pressure water gun to draw water.
3. key points when operating the horizontal sand pump equipment
In addition, the engineer reminded the customer to pay attention to several key points when operating the horizontal sand pump equipment:
3.1 The height of the horizontal sand suction pump should not be too high.
The vacuum suction range of the pump is limited. If it is too high, the first is to affect the suction and cannot guarantee the sand capacity; the second is to produce cavitation, which will cause the sand pump to wear out. Fast; The third is to reduce the head. There is air in the pump body and pipeline, which increases the resistance and shortens the conveying distance. Therefore, it is recommended to achieve back flow or parallel liquid level.
3.2 Fill the pump with divert water if low position is not available
If the on-site use conditions are limited and cannot be lower than the horizontal level, the actual level is within 2-3 meters, it can also be used, but pump needs to be filled with water every time it is turned on. There are two ways fill the pump with divert water. The first is to add a bottom valve to the suction pipe of the horizontal sand pump, and then start the machine after filling the pump with divert water. Vacuum is achieved at the suction port, and the liquid is filled with the horizontal sand pump and the suction pipe. This solution requires an additional gate valve at the outlet, which is relatively simple to operate.
3.3 consider the field requirements of the construction site
When equipped with power and pipelines, it is necessary to consider the field requirements of the construction site. The 350PNS-35 horizontal sand suction pump has a rated power of 200kw. However, considering the high concentration of the sand unloading scheme and long transportation distance, the engineer recommends an 8-pole 220kw motor; The sand discharge distance is relatively short, so you can choose 315mm or 377mm pipelines, and customers can choose according to the cost budget.
4. How To Select Horizontal Sand Pump for Sand Unloading?
After preliminary communication, the customer chose the 350PNS-35 horizontal sand suction pump to match the SK-0.2/2.2kw vacuum pump solution, and all motors selected Shandong Huali brand. This type of pump has sufficient stock, so the horizontal sand pump and The vacuum pump assembly connection experiment is completed and sent to the customer site.
Parameters of horizontal sand suction pump:
Model: 350PNS-35 sand pump
Flow：1800m3/h
Head: 35m
Power: 220kw
Motor: 8 level motor
About OCEAN Pump
Conclusion
The use of horizontal sand suction pumps for sand unloading from transporters offers a practical and efficient solution for construction projects requiring a high concentration of sand over long distances. The case study presented in the article demonstrates the successful implementation of this method in Haiyan County, Jiaxing City, Zhejiang Province.
By selecting the appropriate horizontal sand pump model and considering factors such as sand discharge requirements and transportation distance, Tai’an Ocean Pump Co., Ltd. was able to provide a tailored solution to meet the customer’s needs. The engineers emphasized key operational considerations, such as the height of the sand suction pump and the filling and diversion of water, to ensure optimal performance. With their extensive industry experience, professional technology, and commitment to excellent service, OCEAN Pump has established itself as a leading manufacturer and exporter of sand dredging machines. This article highlights the company’s dedication to delivering reliable sand pumping solutions to customers worldwide for over two decades.
