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The impact of pickling equipment optimization on improving the environment

Release time: 2022-06-21 14:00:17

The working principle, production status and environmental impact of the pickling production line are introduced, and the optimization scheme of the pickling equipment and related auxiliary equipment is introduced. Through production and use, it is found that the optimization of the feeding system, sealing system, auxiliary system and waste gas treatment system in the pickling line has achieved the effect of improving the surrounding atmosphere and water environment. The data shows that the harmful factors in the industrial site of the new production line and the emission of various pollutants in the exhaust gas are more than 10% lower than the relevant standards.

Stainless steel has excellent characteristics such as unique strength, high wear resistance, excellent anti-corrosion performance and not easy to rust, so its application and development prospects will become more and more extensive, but its development depends largely on the surface treatment technology. develop. Surface treatment is mainly to remove iron oxide scale or slip coating on the surface of products. The methods generally include pickling, mechanical peeling, etc. Among them, chemical pickling, electrolytic pickling and vibration pickling are commonly used in the pickling industry. method. The Special Steel Division of Baoshan Iron and Steel Co., Ltd. is an iron and steel enterprise mainly producing stainless steel coils. The main products are austenitic, ferritic and martensitic stainless steel, etc. The surface treatment process adopts the currently mature HF+HNO3 mixed acid Pickling process. Two existing pickling lines have been put into use. During the production process, it is found that the equipment is insufficient, which is prone to environmental pollution accidents such as acid mist leakage. To this end, when designing the new pickling line, the Special Steel Division optimized the relevant equipment, which not only reduced the amount of waste acid produced, but also avoided the escape of acid mist, thereby reducing the impact on the environment.
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