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Submersible Slurry Pump:Best Solution for Coal Slurry Transporting


The coal washing industry plays a crucial role in extracting high-quality coal while reducing pollution and cost through the removal of impurities in raw coal. However, the process generates coal slurry, which consists of various impurities and requires efficient pumping and transportation. In recent years, submersible slurry pumps have emerged as vital tools in the coal washing industry, enabling environmentally-friendly coal extraction and promoting sustainable practices.

Coal slurry is a challenging material to handle due to its high solids content and abrasive nature. When pumping coal slurry with a submersible sewage pump.Here are some reasons why it can lead to motor burnout:

1.High solids content: Coal slime contains a high concentration of solid particles. When these solids are pumped through the motor, they can cause excessive wear on the pump’s impellers and other components. The increased friction can generate heat, leading to motor overheating and potential burnout.

2.Abrasive particles: Coal slime often contains abrasive particles, such as coal dust and grit. These particles can erode the pump’s internal surfaces, including the motor winding insulation. Over time, this erosion can compromise the motor’s efficiency and insulation properties, increasing the risk of a short circuit and motor failure.

3.Viscosity: Coal slime can have a high viscosity, making it thicker and more resistant to flow. The pump’s motor must work harder to overcome this resistance, resulting in higher motor operating temperatures. If the motor is not adequately designed for handling such viscosity, it can overheat and eventually burn out.

Submersible Slurry Pump: Advancing Coal Washing Practices

Raw coal, extracted from mines, contains numerous impurities that can have adverse effects on the quality and efficiency of energy production. Coal washing is a fundamental step in the coal preparation process, aimed at removing these impurities, thereby enhancing the quality of the final product. Among the essential equipment in this process, the submersible slime pump stands out as a robust and reliable solution.

1.Efficient Impurity Removal: The submersible slime pump is specifically designed to handle coal slurry and sludge, which are laden with impurities. Its main flow parts, constructed from CR26 material, boast exceptional wear resistance, ensuring smooth and efficient pumping operations. The stirring impeller located at the pump’s bottom serves to agitate the slurry, facilitating easier suction and transportation with the water flow.

2.Environmental Protection: As environmental concerns continue to mount, the coal washing industry faces the challenge of minimizing its ecological footprint. Submersible slime pumps aid in this endeavor by enabling the removal and proper disposal of impurities, reducing pollution risks associated with coal washing. Their efficient design and reliable performance help maintain a balance between industrial progress and environmental preservation.

3.Enhanced Reliability and Low Maintenance: The submersible slime pump boasts a robust motor that operates without overloading, guaranteeing high reliability in demanding coal washing environments. Its ability to handle abrasive and corrosive materials with ease translates to reduced maintenance requirements, ensuring uninterrupted and cost-effective operations for coal washing plants.

Submersible Slurry Pump: A Powerhouse for Coal Sludge Transportation:

Apart from coal slurry, coal washing plants also need to handle coal sludge, a semi-liquid residue generated during the washing process. To efficiently tackle this challenge, the submersible slurry pump comes to the forefront as an indispensable component.

1.Optimal Sludge Handling: Submersible slurry pumps excel in the transportation of coal sludge due to their design features. These pumps can efficiently handle viscous and abrasive materials, ensuring seamless transportation from one stage of the coal washing process to another.

2.Versatility and Adaptability: The submersible slurry pump is highly versatile, capable of adapting to varying coal sludge compositions and flow rates. Its ability to maintain consistent performance under different operating conditions makes it an ideal choice for coal washing plants seeking optimized sludge transportation solutions.

Submersible Slurry Pump: An Essential Tool for Coal Washing

The coal washing industry also benefits from the application of submersible slurry pumps. These pumps are engineered to handle abrasive materials and solids present in coal slurry, making them ideal for transferring high-density slurries over long distances.

Key advantages of submersible slurry pumps in the coal washing industry:

1.Efficient Solids Handling: Submersible slurry pumps can effectively handle large particles and solids, ensuring smooth transportation of coal slurry even in challenging conditions.

2.Versatility: These pumps can be deployed in various applications within the coal washing process, from pumping the raw coal slurry to handling the waste generated during washing.

3.Reduced Downtime: The robust design and wear-resistant materials of submersible slurry pumps contribute to minimal downtime and maintenance requirements, maximizing operational efficiency.

4.Environmentally Conscious: By preventing leaks and spillages, submersible slurry pumps help mitigate environmental risks associated with coal washing activities.

Four advantages make submersible slurry pump the choice of coal washing plant:

1. Most of the coal slurry after washing has fine particle size and high particle content. Particles smaller than 200 mesh account for 70% to 90%. The submersible slime pump has a full range of specifications and models, as small as 2 inches and as large as 16 inches, which can meet the requirements of different throughputs and different pass rates.

2. The washed coal slurry has strong water holding capacity and high moisture content. After washing, the water content of the slime is about 30%, and the submersible slime pump is used for pumping. The concentration is moderate, and there is no need to add water to the slime.

3. After washing, the ash content of the slime is high, ranging from 40% to 70%. The submersible slime pump is used for pumping, and the solid content is high.

4. Coal slurry generally contains more clay minerals, and the moisture content is higher, so the fluidity is better. In addition to the main impeller, the submersible slime pump has its own stirring impeller, which can easily extract the slime without using a high-pressure clean water pump.

It is difficult to stack, store and transport the washed coal slurry. Due to its unstable shape during storage, it will be lost when it meets water, and it will fly when it is air-dried. This will not only waste precious coal resources, but also cause serious environmental pollution.


The coal washing industry continues to evolve, driven by the need for environmentally-friendly practices and sustainable resource extraction. Submersible slurry pumps have emerged as indispensable tools in this process, enabling efficient and reliable pumping and transportation of coal slurry. Their contributions to environmental protection, cost-effectiveness, and coal quality improvement make them key assets in the coal washing industry’s quest for excellence and sustainability. As technological advancements continue, we can expect even greater efficiency and environmental benefits from these pumps, solidifying their role in shaping a cleaner and greener coal mining future.

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