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It is understood that plastic anti-corrosion equipment is an important non-metallic material anti-corrosion equipment. Compared to stainless steel, glass-lined glass, graphite, glass-reinforced plastic, titanium-zirconium-titanium, and steel-lined PTFE-based corrosion protection equipment, plastic anti-corrosion equipment has the advantages of good corrosion resistance, light weight, and low cost. However, at the same time, such equipment also has the disadvantages of large-scale difficulty and poor pressure performance.
China's metallurgical, chemical and other industries need more than 30,000 acid- and alkali-resistant extra-large-scale plastic anti-corrosion equipment such as pickling tanks and storage tanks each year. Since China currently does not have the ability to produce extra-large plastic anti-corrosion equipment, it can only rely on imports, and it consumes 70 per year. Billion to 8 billion yuan. Taking Alibe (Anshan) Company as an example, the maximum diameter of its various types of plastic storage tanks, reaction tanks and other equipment is 2.9 meters, the maximum height is 9.1 meters, and the maximum volume is 60 cubic meters. It ranks among domestic similar products, It belongs to the category of large-scale containers, but there is still a small gap from extra-large size. In addition, this type of equipment can only be used as a non-pressure vessel, which greatly reduces the scope of application.
To break through the limitations of large plastic corrosion of equipment, Ali Bei (Anshan) plans to extruding wound sealless proprietary technology based on the technical barriers break molding system technology, thick welding material, special mold technology, Make the equipment volume reach more than 200 cubic meters. A further goal is to make the pressure bearing performance of the equipment meet the requirements of medium and low pressure vessels through measures such as material modification and optimization of welding technology.
Alibe (Anshan) Company introduced the proprietary technology of extrusion-wound and no-welding in France, producing high-density polyethylene and polypropylene plastic storage tanks, various tanks, towers and pipelines, etc., which are already in steel, chemical, sewage Processing and other fields have been widely used, with a market share of more than 30%. The product has good sealing performance, exquisite appearance, excellent insulation and heat resistance, and excellent UV resistance. The storage temperature ranges from -30°C to +90°C and the service life is up to 30 years. .
Recently, the reporter learned from Alibi (Anshan) Anticorrosive Equipment Co., Ltd. that the company is currently working on the basis of existing proprietary technologies and is expected to break through the bottleneck of the plastic anticorrosion equipment around the year of 2009 and make the equipment volume from the current 60 cubic meters to 200 cubic meters, and further progress in improving the pressure bearing performance.