Derrick crane, also known as Roof Crane, is installed on a fixed foundation. The top of its mast is fixed with the back braces (stiff legs). BQ models of derrick crane includes 10T Derrick Crane 2533A, 6T Derrick Crane DCB20-6, 10T Derrick Crane DCB24-10, 12T Derrick Crane DCB30-12, 16T Derrick Crane DCB30-16, 18T Derrick Crane DCB42-18.
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The research project for the research and development of the Chinese Academy of Sciences, the research and development equipment for the desalination of the Chinese Academy of Sciences, was conducted by the Institute of Changchun Yinghua, Chinese Academy of Sciences. The expert group unanimously agreed that the pilot-scale seawater desalination reverse osmosis composite membrane preparation equipment independently designed by the project has novel structure and good regulation performance. It is suitable for the research of preparation technology of reverse osmosis composite membrane, and can continuously prepare reverse osmosis composite membrane. Scientific research and industrial production provide a basic research platform.
Reverse osmosis desalination is an important strategic means to solve the problem of water shortage. The reverse osmosis composite membrane is the key material for membrane desalination. It can convert seawater, brackish water and sewage into pure fresh water, and plays an important role in industrial and agricultural production. However, most of China's reverse osmosis membranes rely on imports, mainly due to the lack of advanced membrane materials and sophisticated production equipment. The reverse osmosis membrane preparation equipment is the core technical equipment for research and production of reverse osmosis membranes. The lack of equipment severely limits the research and application process of membrane materials in China. Therefore, it is of great significance to research and develop membrane materials and preparation equipment with international advanced level.
Under the support of the scientific research equipment of the Chinese Academy of Sciences, the Changchun Yinghua Institute of the Chinese Academy of Sciences established a research group for composite membrane preparation equipment consisting of researchers and engineers of reverse osmosis composite membrane materials preparation and equipment manufacturing. Research and development of desalination reverse osmosis composite membrane preparation equipment. After more than two years of research and development, they solved the key technical problems of temperature control, tension control and rectification control of the equipment. The PCL was used to coordinate and optimize the hardware system and software system of the equipment to prepare the polymerization, thermal cross-linking and film formation. The reverse osmosis composite membrane preparation equipment with multiple functions such as post-treatment has filled the domestic blank. At present, the equipment has been researched in the reverse osmosis composite membrane formulation and process in the relevant units, and the trial effect is good. The successful development of this equipment can not only systematically study the influence of various preparation conditions on membrane performance, but also deeply understand the principle of film formation and key influencing factors, and help to break the monopoly and improve the research level of membrane material preparation in China. The large-scale production of permeable membranes provides technical support. During the development of the project, three patent applications were filed and two were authorized.
The desalination reverse osmosis membrane no longer relies on the import of my reverse osmosis composite membrane preparation equipment...
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