Application Scenarios of Submersible Slurry Pumps

A submersible slurry pump is specialized equipment designed for transporting abrasive solid-laden slurries. It adopts an integrated coaxial structure of pump and motor, allowing direct submersion into the medium for operation without complex pump house construction or water diversion and venting devices. With advantages of compact structure, easy installation, high slurry suction efficiency, wear and corrosion resistance, it is widely used in harsh working conditions across multiple industries. Proper operation and maintenance in accordance with specific specifications are essential to ensure stable equipment performance and extend service life.

The core application value of submersible slurry pumps lies in adapting to the transportation needs of "submerged, high-concentration, abrasive slurries". They are particularly suitable for mobile operations, projects needing to reduce civil engineering costs, or environments where traditional pumps are difficult to install. Specific application scenarios by industry are as follows:

(I) Mining Industry

The mining industry is the largest application sector for submersible slurry pumps, accounting for about 80% of total usage. It is mainly used to handle various slurries and wastewater generated during mining, ensuring production safety and smooth processes. 1. Tailings disposal: Transporting tailings slurry (20%–60% concentration, containing a lot of fine slag and sediment) generated after mineral separation to tailings ponds for storage, requiring wear-resistant materials to resist strong abrasion. 2. Mine pit drainage and slag removal: Discharging underground mine water mixed with sediment and ore debris (several millimeters to tens of millimeters) to avoid water accumulation affecting operational safety. 3. Concentrate transportation: Short-distance transfer of high-concentration concentrates (such as iron concentrate, copper concentrate) in some mineral processing processes, with pump components matched to concentrate characteristics. In addition, they are used for mine water drainage and auxiliary resource recovery in gold, iron and other metal mines.

(II) Metallurgical and Power Industries

These industries mainly use submersible slurry pumps to handle high-temperature and highly abrasive slurries, solving environmental protection and production continuity issues. In the power industry: Mostly used for transporting fly ash slurry and boiler slag slurry from thermal power plants to ash yards or dewatering systems, preventing ash deposition and pipe blockage. In the metallurgical industry: Handling high-temperature and alkaline corrosive slurries (such as blast furnace slag, converter slag) from steel plants, transferring them to slag ponds or for external treatment. Their high temperature and wear resistance ensure stable metallurgical processes. During hydropower station construction and operation, they are used for sediment separation and desilting to prevent silt buildup affecting turbine operation and maintain stable power supply.

(III) Dredging and Riverway Engineering

Submersible slurry pumps can submerge directly to the bottom to suck media, making them core equipment in dredging and river regulation projects. 1. River dredging: Treating silt (containing sediment and humus, variable concentration) in rivers, lakes and reservoirs, often working with cutter suction dredgers or buoy platforms for thorough and efficient cleaning. 2. Port and wharf dredging: Removing silt deposits from port waterways, adapting to complex underwater terrain, ensuring smooth navigation. 3. Land reclamation projects: Extracting seabed sediment for land creation, requiring pumps with seawater corrosion-resistant materials to resist corrosive seawater.

(IV) Construction and Municipal Engineering

They are mainly used to discharge mud and wastewater during construction, avoiding delays and safety risks caused by water accumulation. 1. Foundation pit drainage: Removing groundwater and sediment-laden mud from deep foundation pits to prevent collapse. 2. Subway and tunnel construction: Timely discharging rock debris and sediment slurry produced by shield tunneling to ensure smooth construction. 3. Sewage treatment: Conveying high-concentration, easily precipitated sludge slurry from primary and secondary sedimentation tanks, or slurry after interception at water inlets. Cutting devices are often equipped to prevent pipeline blockage.

(V) Other Special Scenarios

Beyond the above industries, submersible slurry pumps are suitable for various special working conditions. In the chemical industry: Transporting corrosive slurries containing solid particles (such as pickling waste slurry, phosphogypsum slurry), requiring acid and alkali resistant materials. In agricultural and water conservancy: Conveying sediment-laden water for farmland irrigation and drainage, and transferring silt for reservoir desilting, meeting low-concentration, high-flow requirements. In the coal industry: Handling coal slurry from coal mining and washing processes, supporting coal slime recovery and water recycling.