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In plastic extrusion production, there may be various impurities and foreign matter in the raw materials, as well as fine crystal particles that are not completely plasticized. Therefore, in the recycling process of recycled plastics, there may be various impurities such as paper scraps, aluminum foil, sand and gravel, iron filings, copper wire, wood chips, and expired defoaming agents. Therefore, many screen changers have become indispensable equipment in the production of recycled plastics. So what is the role of this equipment? Let's learn about it together below.
In fact, the role of the screen changer in the recycling production of recycled plastics generally has two aspects:
The first is that various impurities can be filtered through the filter;
The second is that after installing the screen changer, the filter can be replaced without stopping the extruder production and disassembling the mold. Specific types of screen changers can also replace the filter without affecting the normal production of the product, reducing energy consumption, waste, cost and labor intensity of workers, and improving production capacity and economic benefits.
On the contrary, if there is no screen changer installed to filter impurities, it will not only cause a decline in product quality, an increase in defective products and production interruption, but will even damage the extrusion equipment, resulting in a huge waste of raw materials, high production costs and energy consumption, relatively reduced production capacity, and increased labor intensity of workers. Therefore, the screen changer is an indispensable equipment in the production of recycled plastics.