What pump is used to pump sulfuric acid?
In the process of sulfuric acid extraction, it is crucial to choose the right pump because sulfuric acid has the characteristics of strong corrosiveness and high concentration. According to publicly released information, the following are some commonly used sulfuric acid extraction pump types and their characteristics:
1. Magnetic pump
Features: The magnetic pump adopts a shaft seal-free design, which is completely leak-proof and will not cause liquid leakage. It is very suitable for conveying corrosive, acidic and alkaline liquids. The magnetic pump can effectively output the liquid from the low-pressure area to the high-pressure area to meet the process requirements of sulfuric acid extraction. At the same time, it can also control the pressure of sulfuric acid extraction, improve work efficiency, save energy, and increase safety.
Material recommendation: It is recommended to use a magnetic pump made of PVDF (polyvinylidene fluoride) material because this material has excellent corrosion resistance and high temperature resistance (normal use temperature can reach 90°C), which can meet the use requirements in most cases.
2. Centrifugal pump
Features: Centrifugal pumps have the characteristics of energy saving, noise reduction, high temperature resistance, corrosion resistance, easy operation and convenient maintenance. In the process of sulfuric acid extraction, the centrifugal pump can effectively output the liquid to meet the process requirements. In particular, centrifugal pumps made of special corrosion-resistant materials (such as fluoroplastics, etc.) are more adaptable to the strong corrosiveness of sulfuric acid.
3. Submersible pump
Features: Submersible pump is an effective suction pump with high corrosion resistance, thicker pump body, simple structure, high reliability, large water pumping capacity and high energy efficiency. These features make submersible pumps widely used in sulfuric acid extraction process.
4. Vane pump
Features: Vane pump is a new type of pump, which consists of a runner with blades, and moves liquid through blades. It has the characteristics of small size, light weight, high reliability, reasonable and simple structure, easy maintenance and good wear resistance. Vane pumps are also widely used in sulfuric acid extraction process.
5. Self-priming pump
Features: Self-priming pump has self-priming ability, can reach a certain self-priming height (such as 8 meters), and is usually equipped with a check valve design to prevent liquid backflow in the pump. Although self-priming pumps are more common in wastewater recycling treatment in processes such as electroplating and painting, their application may be relatively rare when pumping sulfuric acid, because the strong corrosiveness of sulfuric acid requires higher pump body materials and sealing.
When pumping sulfuric acid, priority should be given to pumps such as magnetic pumps, centrifugal pumps, submersible pumps and vane pumps that have significant advantages in corrosion resistance, work efficiency, safety and maintenance convenience. At the same time, it is recommended to consult professional pump equipment suppliers or technicians for more accurate advice.
