Development of the first domestic large-scale extr

2022-08-14
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Recently, as a major equipment localization project, the first domestic 200000 ton/year PP mixing extrusion granulation unit developed by Dalian Rubber and Plastic Machinery Co., Ltd. passed the technical appraisal of Sinopec appraisal committee in Beijing. The verification regulations of non-metallic tensile force, pressure and universal testing machine and electronic universal testing machine repeat too much in content. Recently, as a major equipment localization project, the first domestic 200000 ton/year PP mixing, extrusion and granulation unit developed by Dalian Rubber and Plastic Machinery Co., Ltd. passed the technical appraisal of Sinopec appraisal Committee in Beijing. Since the unit was put into operation in Sinopec Beijing Yanshan Branch in 2010, all technical indicators have met the design requirements and filled the domestic gap. The overall technical indicators have reached the international advanced level, and some performance indicators are better than imported similar units, with significant economic and social benefits

polyethylene (PE) and poly (PP) are the main products of large-scale ethylene projects. They are the basic synthetic resins that need to facilitate the calibration of force value at present, with the largest amount and the widest use. The large-scale extrusion granulation unit is the key equipment in the large-scale ethylene complete set of equipment and the core equipment in polyethylene and polypropylene plants. It integrates machinery, electricity and instrumentation, has complex process flow, strong compatibility, difficult design, manufacturing and operation, and is expensive

internationally, only three companies in Germany and Japan have the design and manufacturing capacity of large extrusion granulation units. Before 2010, the hardness group of large-scale extrusion granulator in China depended on imports for a long time, which seriously restricted the development of petrochemical enterprises in China. The development level of large-scale extrusion granulation unit also reflects the latest achievements and comprehensive strength of a country in the field of petrochemical equipment research. For this reason, the large-scale mixing, extrusion and granulation unit was listed as a national key technical equipment localization project during the Eleventh Five Year Plan period

in 2006, Sinopec started the localization project of 200000 t/a polypropylene large extrusion granulation unit. The project is personally presided over by academician caoxianghong, chief engineer of Sinopec Group. Relying on Yanshan Petrochemical Ethylene transformation project, the project is composed of a joint research team of production, learning, research and application from Dalian Rubber and Plastic Machinery Co., Ltd., Sinopec Beijing Yanshan Branch, Sinopec Engineering Construction Co., Ltd., Beijing University of chemical technology and other six units, Dalian Rubber and Plastic Machinery Co., Ltd. is responsible for the development of large-scale extrusion granulation unit

in 2010, the first domestic 200000 t/a PP mixing, extrusion and granulation unit was successfully commissioned in Yanshan Branch of Sinopec. In his speech, Wang Wentao of Dalian Rubber plastics said that the material machinery Co., Ltd. has become the fourth manufacturer of large-scale extrusion granulation unit in the world, and China's large-scale ethylene equipment manufacturing ranks among the international advanced ranks. In recent years, large rubber and plastic has successfully developed large granulation units with an annual output of 100000 tons, 140000 tons, 200000 tons, 250000 tons and 350000 tons

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