4 inch Sand Pump for River Sand Suction

4 inch sand pump, also known as the horizontal sand pump, is an impurity pump that extracts such media as mud, fine sand, slag and transports them over long distances. 4 inch sand pump is very popular in the market because of its small size, light weight, easy operation and low maintenance cost. 4 inch sand pump is widely used in the sand-sinking and dredging project of small rivers, especially for customers who engage sand pumping for the first time. OCEAN Brand sand pump is precisely cast by high quality and high wear resistant material. It is suitable for marine sand absorption, mud absorption, reclamation, construction of docks, and can also be used in electric power, metallurgical transportation, river dredging and other industries.

The 4 inch sand pump has the features of small size, easy operation, wide flow path and good pass-ability, so this 4 inch sand pump is suitable for dredging operations in rivers and ponds. There is a small river near Mr. Li’s house in Changsha. The water depth is about 2 meters, and it is crystal clear. The sand source in the river is good, there are no large particles and the mud content is also small. In view of the current good sales of sand on the market and high prices, Mr. Li wants to use sand pumps to pump sand from the river, and then sell it after screening. So he contacted us through OCEAN Pump website and wanted to choose a suitable simple sand pump. The flow requirement is not high, and the sand capacity is 10 m³/h. The distance is not too far, about 70-80 meters. After communication, we recommended the 4 inch sand pump and explain the characteristics and application of the sand pump to the customer. The photos of the 4 inch sand pump was sent to the customer for reference. Considering the work site was near the village, we recommended the customer to use electric motor to drive the sand pump machine. However, customer preferred diesel engine, because it is more convenient for moving. After receiving the deposit, we arranged production, then delivered the 4 inch sand pump set to the customer’s work site.

Parameters for 4 inch Sand Pump

Sand Pump Model	4 ps
Flow	100 m³/h
Head	15 m
Rotation Speed	1400 rpm
Power	30 hp
Inlet Size	4 inch
Outlet Size	4 inch

About OCEAN Pump
Tai'an Ocean Pump (OCEAN Pump) Co., Ltd. is the leading sand pump and sand dredger solutions manufacturer, supplier and exporter in China. We have more than 30 talented sand pump experts and 15,000 square meters factory. More than 4 series 20 kinds of sand pumps, slurry pumps, sand dredgers and related parts had been manufactured to satisfy your pumping requirements. OCEAN Pump is the Certification of New Hi-tech Enterprises by the Government. We provide our customers with a complete set of  sand, slurry, gravel pumping solutions and related parts. Our main products include centrifugal portable sand pump, marine sand pump, slurry pump, dredge pump, gravel pump, mud pump, submersible slurry pump, vertical sand pump, simple small sand pump dredger, submersible dredger, mini dredge for sale,  small dredging equipment, small pond dredging equipment, sand suction dredger,  suction dredging equipment, cutter suction dredger , sewage submersible pump, lake dredging equipment, mini dredges for sale, sand dredging machine, river dredging equipment and other parts like discharging sand pipe, floater, rubber hose. They are widely used in mining, metallurgy, coal washing, power plants, sewage water treatment and dredging in such industries as mine, chemical and petroleum. We are looking for pump dealers all over the world.

What Kind of Suction Dredge Pumps are Suitable for Inland River Dredging

What kind of suction dredge pumps are suitable for inland river dredging? Followed are some suggestions.

Inland river is different from large river and sea. There are large particles or twining solids such as mixed garbages, weed, bricks; Mud is more than sand, it may dry up in summer.

At present, cutter suction dredgers is often equipped with suction dredge pumps and vertical sand pump units, the cutter suction dredgers can be used with excavator ships for inland river dredging. Besides this, there are other methods for inland river dredging.

1. For a dry river, there is no water source nearby, excavator or artificial way is suitable but not sand pump. This method is time-consuming and laborious. The working efficiency is lower.

2. The river water is very shallow. Vertical suction dredge pumps equipped with high pressure water gun are a better choice. It has the features of easy operation, high suction concentration, high efficiency, thorough cleaning up. The disadvantages are that it needs manual operation and the discharge distance is not so long.  If the conveying distance is long, horizontal suction dredge pumps can be used as booster pumps. The sand extracted by several vertical suction dredge pumps gathers to one horizontal sand pump, then is conveyed to discharge destination.

3. When the river has sufficient water supply, a variety of sand pumping equipment can be used in conjunction with each other. If there are a lot of weeds in the river, the mowing boat can clean up the weeds at first, then the cutter suction dredger cleaning up sediment and stones. The big particle gravel sand pumps are suitable to be equipped on the cutter suction dredgers, because the large particle suction dredge pumps have the characteristics of wide channel, non blockage, strong wear resistance. The largest particle diameter allowed to pass is 20cm, it is the best choice for this working condition.

Generally, the river clearing project is more complicated, we can choose the suction dredge pumps according to actual working condition.

Tai’an Ocean Pump Co.,Ltd. is professional in designing and producing suction dredge pumps, sand suction pump, slurry pump, dredging pump, sand dredgers, etc. We can supply the customers different construction plans according to different construction conditions. On the base of rich experiences in the Yellow River dredging and dyke strengthening, our products have been widely used in our domestic market and gotten good praise. Our products are famous for high efficiency, wear-resistance, long distance conveying. In the recent years, the submersible mud pumps designed and produced by our company are hot sale in our domestic dredging sites and mining enterprises. The advantages of the sand dredging machine are durable, wear-resistance and easy operation. At the same time, the export sales of the sand pumps are getting better and better.

Horizontal Sand Pump was Used for Sand Unloading from Sand Transport Ship

Horizontal sand pump has the characteristics of simple operation, environmental protection, energy saving, high efficiency and durability. Horizontal sand pump is an ideal sand pump type used for sand unloading from sand transport ship. After sand in the field is transported by sand transport ship to the local area, the workers use high pressure water gun to impact the sand, then use horizontal sand pump to transport the high concentration mixture sand and water to the destination.

Sand mining in Jiaxing city was under control by the Government because of environmental protection. But they needed the material of sand and gravel for construction, so they required to buy and transport the sand from other places to the local area. They planed to use conveying belt or small sand pump for sand unloading, but this method was low in efficiency, the conveying distance was short, the equipment damage time was short, and the cost was high. According to the customers’ requirements and actual measurement of the sand transport ship, the technical team of Tai’an Ocean Pump Co.,Ltd.(referred to as Ocean Pump) recommended horizontal sand pump 350PNS-35 for sand unloading.

On April 10, 2018, Jiaxing customers came to Ocean Pump and proposed construction requirements, the speed of unloading sand should be fast, 6-barrel water guns, and the conveying distance ranged from 600m to 1300m. The engineers of Ocean Pump showed the customers the sand unloading plan, that was, to make a new ship, 350PNS-35 horizontal sand pump and 350s44 high pressure water pump were arranged in the ship hull, and the hydraulic operation rod was used to move the high pressure water gun and sand suction hose, then realized the sand unloading work. This method was a sand unloading plan jointly developed by Ocean Pump, and Yancheng and Xinghua Shipyard. 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 was very appreciative of this scheme, but they worried about this would increase the cost and delay the construction period. They hoped to realize sand unloading on the dock. Through the construction simulation of the work site, the technical department of Ocean Pump proposed a plan to place a horizontal sand pump on the dock and use the artificial hand-held high-pressure water gun to impact the sand. However, there were several important points to be noted in the operation:

1. The height of the horizontal sand pump should not be too high. The vacuum suction head of the sand dredging pump was limited, if the height was too high, the first was to affect the suction and the production cannot be guaranteed. The second was the cavitation phenomenon, this could cause the horizontal sand pump to be worn so fast; the third was to reduce the head, there was air in the sand suction pump body and the pipeline, so that the resistance was increased and the conveying distance was shortened. It was therefore recommended to achieve backflow or parallel water level.
2. If the conditions in the work site were limited, the place of sand pump machine cannot be lower than the water level, the sand suction pump still could run if it was 2-3m higher than the water level, the premise was injecting water into the sand pump body before turning on. There were two ways to inject water. The first was setting a bottom valve on the suction hose of the horizontal sand pump, turning on the sand and slurry pump after injecting water. The disadvantage was that the bottom valve was seriously worn, the inner rubber pad needed to be replaced frequently. The second was using vacuum pump, which could evacuate the sand pump and pipeline, the suction port position was vacuumed, and the liquid was filled with the horizontal sand pump and the suction pipe. The second solution needed to set a gate valve at the exit, which was relatively simple to operate.
3. When equipped with power and pipeline, it was necessary to consider the actual conditions of the working site. The rated power of the 350PNS-35 horizontal sand pump was 200kw, but considering the high concentration sand unloading and long discharge distance, the engineer recommended that the motor was 8 poles, 220kw. Either 315mm or 377mm of pipeline was suitable, the customers could select according to their budget.

After the pre-communication, the customer selected the scheme of 350PNS-35 horizontal sand pump with SK-0.2/2.2kw vacuum pump. This type of sand pump was sufficient in stock, so the sand pumping equipment was quickly assembled and delivered to the work site.

Horizontal Sand Pump Parameters

Modle	350PNS-35 horizontal sand pump
Flow	1800m³/h
Lift	35m
Supporting power	220kw
Supporting Motor	8 pole, 220kw

Ocean Pump specializes in the development, production and sales of sand suction pump, slurry pump, submersible dewatering pump, submersible slurry pump, sand dredger, etc. We have accumulated rich experience, through detailed communication with the customers, our technical engineers are familiar with various construction conditions and the model selection is also very mature. We have focused on sand unloading for 20 years, providing not only high-quality products and industry-wide solutions, but also on-site installation services.

Please feel free to contact us for the sand suction scheme design and sand suction equipment problems.