Pressure centrifuge Centrifuge drum diameter Φ1200mm, speed 2000 rev / min, processing capacity 50 tons / hour, the key technology lies in high-power high-precision planetary differential technology, stainless steel drum centrifugal casting technology, large diameter double-end mechanical seal manufacturing technology.
Domestic professional manufacturing companies include Chongqing Jiangbei Machinery Factory and Jilin Chemical Machinery Factory. They have their own design software and have carried out the development of a series of centrifuges. In addition, Shanghai Petrochemical Machinery Manufacturing Company and Liaoyang Chemical Fiber Company Machinery Plant have also developed pressure for PTA devices. Centrifuge. Jilin Chemical Machinery Factory has successively developed various types of centrifuges, such as 500-, 630-, and 850-series horizontal spiral discharge centrifuges, and 1200, 1600, and 1800 series scraper discharge centrifuges. Has been widely used in petroleum, chemical, pesticide and other fields. Chongqing Jiangbei Machinery Factory integrates scientific research, development, manufacture, and service. It has developed GKH series siphon filter scraper discharge centrifuges, IW630-N horizontal centrifugal discharge centrifuges, and WH-800WH800-N piston pusher centrifugals. Machine, SGZ (SXZ) three-foot lower discharge automatic centrifuge. The LW1200×1980N horizontal spiral unloading and sedimentation centrifuge developed by Liaoyang Chemical Fiber Machinery Plant is the largest PTA centrifuge under the current domestic pressure conditions. However, these manufacturers have not developed large-diameter, high-speed vertical centrifugal decentralized differential centrifuge experience, the need for the organization of targeted research and development.
Other equipment includes crystallizers, heat exchangers, condensers, filters, hydrogenation reactors, etc. Materials are low-carbon stainless steel, composite titanium, duplex stainless steel, chromium molybdenum steel, etc., domestic Nanhua Machinery Factory, Jinzhou Heavy-duty machine factory, Jinxi Chemical Plant, and Fushun Machinery Factory all have long-term manufacturing experience and it is not a problem to achieve localization. The diaphragm hydrogen compressor for hydrogenation in PTA devices requires no leakage or pollution. The Shanghai Dalong Machinery Plant has many years of experience in designing and manufacturing diaphragm compressors and can meet the requirements of PTA hydrogen compressors. In addition, the parameters of the centrifugal pump for PTA installations are not complicated. Except for the PVDC material, Hastelloy lining, and Duplexss pump, the pump can not be produced in China. The rest of the PTA pump can be produced in China, especially the Dalian Sulzer Pumps and Compressor Company. The product range can meet the needs of PTA pumps.
In short, due to the long-term understanding of PTA's major equipment in China and the technological advancement of domestic machinery manufacturing companies over the years, it is feasible to develop major equipments with a million-tonnage PTA at home. We cannot rely on importing foreign equipment for a long period of time, and we should have the confidence to achieve localization of large-scale PTA process technology and major equipment through the joint efforts of scientific research, design, manufacture, and users. However, the difficulty in manufacturing the main equipment of a million-tonnage PTA is still quite large, and the country has not yet produced such large-scale equipment. This requires the mobilization of all aspects of technical force, meticulous organization, careful design, meticulous manufacturing, strict quality control.
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