China Drying Network Nordson BKG recently announced that an integrated system will apply the thermal energy of the melt polymer in PET granulation to the subsequent crystallization process, eliminating the problem of agglomeration of non-crystalline particles and significantly reducing the energy cost of synthesis or recycling. .
This process, known as crystal cutting, has been patented to avoid cooling the PET chips after recrystallization and then reheating the crystals. The integrated technology integrates underwater granulation, drying, and crystallization, and controls the temperature of the material precisely throughout the entire process to prevent production and quality problems caused by insufficient crystallization and excessive non-crystalline particles. According to the actual commercial production, Nordson BKG calculates that the energy efficiency of the crystallization system is extremely high, saving more than 3 million euros in energy costs per year for a standard PET resin plant, and saving nearly 20 percent in an PET recycling line. Million euros in energy costs.
“The crystallization cut system can significantly reduce the cost pressures of PET polymerization and recycling, especially in the case of falling PET prices,†said Ralf Simon, general manager of Nordson BKG. “In addition, the system uses the Residual thermal energy crystallizes the particles from the inside out, strengthening the crystal structure and reducing the energy cost of remelting the particles."
In the crystallization cut system, the high-temperature PET particles produced by underwater granulation and eagerly cutting are quickly transported into the particle dryer through the process water in a closed pipeline, and the process water temperature is as high as 95°C. The short distance between the die and the dryer is the key to heat retention during melt processing. When the particles leave the dryer into the shaker, the temperature is between 150°C and 160°C. Particles continue to move, making the heat evenly distributed and preventing sticking. When the entire process is completed, the particle temperature is approximately 180°C and the crystallinity is as high as 40%, which allows direct access to the SSP device.
Nordson BKG was established in 1994 to produce underwater pelletizing and drying systems. The company was originally part of the Cairnberg Group and was acquired by Nordson Corporation in 2013. BKG is headquartered in Münster, Germany.
A milling machine is a machine tool that uses a milling cutter to mill a workpiece. In addition to milling planes, grooves, gear teeth, threads, and spline shafts, the milling machine can also process more complex profiles. Usually, the milling cutter is mainly based on rotary motion, and the movement of the workpiece and the milling cutter is the feed motion. It is widely used in machinery manufacturing and repair departments. Whether you are using it for industrial manufacturing, equipment maintenance, or machine tool training, you can buy a suitable ordinary milling machine or CNC Milling machine at HOSTON.
Small Cnc Milling Machine,Common Milling Methods,3 Axis Cnc Milling Machine,Cnc Gantry Type Milling Machine
Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hosdunmachinetools.com