The pickling process is a critical link in fields such as metal surface treatment, chemical raw material purification, and metallurgical processing. Its core function is to remove oxide scales, rust layers, and impurities from material surfaces using acidic media. This process imposes extremely high requirements on the corrosion resistance, stability, and safety of conveying equipment. As the power core of the pickling system, chemical pumps, with their targeted structural design and performance advantages, have become key equipment for ensuring the continuous and stable operation of the pickling process.
In the pickling process, the concentration, temperature of the acidic medium, and the impurity ions it contains pose severe challenges to the pump body material. Chemical pumps achieve precise adaptation to strong acid environments through material selection and structural optimization: First, corrosion-resistant alloy materials and non-metallic materials are used to manufacture flow-through components, preventing erosion and chemical corrosion of the pump body by the medium. Second, a leak-free sealing design is adopted to avoid equipment damage and safety hazards caused by the leakage of acidic media. For instance, in the stainless steel pickling process, fluoroplastic chemical pumps can withstand the corrosion of mixed acids for a long time, and their service life is 3-5 times longer than that of ordinary centrifugal pumps.
The pickling process has strict requirements for the stability of medium flow rate and pressure. Fluctuations in flow rate can lead to uneven pickling time, resulting in over-pickling or under-pickling on the material surface; sudden pressure changes may disrupt the circulation flow field in the pickling tank, affecting the impurity removal effect. Chemical pumps achieve stable conveying through the following designs:
The acid solutions used in the pickling process are not only corrosive but may also be volatile and toxic. Once leakage occurs, it will cause serious harm to personnel safety and the environment. Chemical pumps are equipped with advanced sealing devices, such as mechanical seals and packing seals. Mechanical seals use high-precision sealing surface matching and spring-loaded mechanisms, which can effectively prevent acid leakage with reliable sealing performance; packing seals, through special sealing packing and gland structures, can also ensure sealing performance to a certain extent. In addition, some chemical pumps are equipped with leak monitoring and alarm systems. When micro-leakage occurs, the system can issue an alarm in a timely manner, reminding operators to take measures to prevent the expansion of accidents. The application of these safety measures provides a reliable guarantee for the safe operation of the pickling process and protects the life safety of operators and the surrounding environment.
In summary, with the comprehensive advantages of corrosion resistance, stability, and high safety, chemical pumps not only meet the strict requirements of the pickling process for conveying equipment but also become a key support for improving process quality and reducing production costs. As an enterprise focusing on the R&D and production of pump products, TEFFIKO's chemical pump products are highly compatible with the core needs of the pickling process. Relying on advanced material technology and precise structural design, TEFFIKO provides reliable conveying solutions for the industry. With the development of the pickling process, TEFFIKO will further promote material upgrading and intelligent transformation to continuously empower the technological progress of the industry, making it an excellent choice for customers in the selection of chemical pumps.
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