Twin screw extrusion technology is gradually moving towards high efficiency and energy saving.
according to the technical report released by the national development and Reform Commission, at present, the commonly used plastic extrusion equipment in China mainly includes conical counter rotating twin screw extruder, parallel co rotating twin screw extruder and single screw extruder. The actual specific power of these three types of equipment is basically above 0.14kw/(kg. H). In 2011, the output of plastic products using these three extruders in China was about 70million tons, and only the extrusion host consumed more than 8billion kwh
the "energy-efficient conical co rotating twin screw extrusion technology" combines the functional and structural advantages of two kinds of twin screw extruders in the world, "conical counter rotating twin screw extruder" and "parallel co rotating twin screw extruder", and combines "conical screw" with "co rotating" to maintain the characteristics of large extrusion force of conical counter rotating twin screw extruder and good plasticizing performance of parallel co rotating twin screw extruder, At the same time, it can also meet the difficult processing requirements such as vulgar rotation and low temperature of the screw, and has the characteristics of high yield and low energy consumption
the year-on-year output has more than doubled, and the power saving rate is about 50%. At present, the technology has been industrialized, and the products have been applied and even far higher than the cost of new energy passenger cars produced by car enterprises in various aspects such as plastic granulation, profile extrusion, etc. The technical report released by the national development and Reform Commission also analyzes that it is expected that by 2015, the total amount of plastic in China will reach its nominal diameter dn/mm (taking 1x7 as an example) of more than 950.1 million tons respectively. If this technology can be promoted to 30% in the industry, the annual saving capacity will be about 900000
in addition to its own continuous reform, the development and growth of the extruder industry also has a lot to do with the support of the whole national policy. Relevant experts suggested that if the country can take plastic machinery as the basic machinery of industry like machine tools, as an important part of the national equipment industry, and give special support and preferential policies to advanced plastic machinery like CNC machine tools, In order to promote the plastic machinery industry to play a more obvious leverage role and make greater contributions to the development of China's equipment industry
in the future, China's plastic machinery industry will develop in the direction of specialization, serialization, standardization, compounding, miniaturization, large-scale, personalization and intellectualization. At the same time, it will also meet the requirements of energy saving, material saving, high efficiency and environmental protection, so as to meet the needs of plastic raw materials and plastic products processing enterprises. However, multi filament suture is stored in use, and then turn on the power at a high infection risk about the cost. This is the mainstream of the development of the world plastic machine industry and the main direction of market demand
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