Description of the crushed hard plastic material granulation production line:The crushed material granulation production line is suitable for the granulation of thermal plastics such as PP, ABS, PA, PVC, PE, and PC. The barrel of the crushing material granulator is made of 45# forged steel inlaid wear-resistant alloy sleeve (or the whole 38CrMoAlA nitrided steel, nitriding treatment), the radial bearing of the output shaft of the reducer is made of German INA bearing, and the main shaft is made of special alloy material. Manufacturing, carburizing treatment, threaded elements are made of alloy steel, vacuum quenching or nitriding heat treatment, the heater is heated by cast aluminum or cast copper electric heater, Japan RKC dual-channel PID digital intelligent temperature control instrument, INVT constant torque AC Frequency conversion governor speed regulation, vacuum exhaust, reduction box with oil cooling system, cylinder with soft water cooling system, stainless steel water tank, blow dryer, pelletizer, electrical control cabinet, etc.The crushed material granulation equipment can also be equipped with a double-station large-flow plate hydraulic screen changer and a mobile hydraulic oil station. According to different materials, different granulation auxiliary machines can be configured to form different granulation production lines.
Production Process of the crushed hard plastic material granulation production line
- Sorting and Pretreatment：First, waste plastics are sorted to remove impurities and non - target plastics. Then, they are usually crushed into small pieces for subsequent processing.
- Washing and Drying：The crushed plastic pieces are washed to remove dirt, oil, and other contaminants. After washing, they are dried to remove moisture, which is crucial for ensuring the quality of granulation.
- Melting and Extrusion：The dried plastic pieces are fed into an extruder. The extruder heats the plastics to their melting point, and through the rotation of the screw, the plastics are plastically deformed and extruded into a molten state.
- Filtration：During the extrusion process, a filter is used to remove impurities and undissolved particles in the molten plastic to improve the quality of the granules.
- Cooling and Granulation：The molten plastic is extruded through a die and then enters the cooling system. After cooling and shaping, it is cut into granules by a cutter. The cooling methods can be water - cooling, air - cooling, etc., and the cutting methods include (hot - cutting) and (cold - cutting).
Main Components of the crushed hard plastic material granulation production line
- Feeding System：It includes devices such as hoppers and feeders, which are used to uniformly feed plastic raw materials into the extruder.
- Extruder：It is the core component of the production line, usually including single - screw extruders and twin - screw extruders. The extruder is equipped with a screw, barrel, heating device, and motor. The screw is responsible for plasticizing and extruding the plastic raw materials, and the barrel is made of high - temperature - resistant materials. The heating device ensures that the plastics reach the melting point, and the motor provides the power for the rotation of the screw.
- Filtration System：It is generally composed of a filter screen and a screen - changing device. The filter screen can filter out impurities in the molten plastic, and the screen - changing device enables the replacement of the filter screen during production without stopping the machine.
- Cooling System：It is usually composed of a cooling water tank, a circulation water pump, etc. The cooling water tank is used to cool and shape the extruded molten plastic, and the circulation water pump ensures the flow of cooling water and keeps the water temperature constant.
- Cutting and Collection System：The cutting system is equipped with high - precision cutting tools, which can cut the cooled plastic strips into granules according to the set length. The collection system is used to collect the cut granules for subsequent packaging and storage.
Features of the crushed hard plastic material granulation production line
- High - efficiency Production：It can process a large amount of waste plastics in a short time and has a high output to meet the needs of large - scale production.
- Good Product Quality：Through precise temperature control, filtration, and other processes, the produced granules have uniform size, high purity, and good physical and mechanical properties.
- Energy - saving and Environmental Protection：Adopting advanced technology and equipment, such as energy - saving extruders and efficient cooling systems, can reduce energy consumption and at the same time realize the recycling of waste plastics, which is in line with the requirements of environmental protection.
- Automation：The production line is usually equipped with a PLC control system, which can realize the automatic control of the production process, reduce human operation errors, and improve production efficiency and stability.
Application of the crushed hard plastic material granulation production line
The granules produced by the ABS PC PP granulation production line can be widely used in the production of various plastic products, such as injection - molded products, blow - molded products, and extruded products, and are widely used in the fields of automobiles, electronics, home appliances, and daily necessities.
