Working Principle of Meltblown Air Heater
1. The meltblown process requires a large amount of hot air. The high-pressure Roots blower sends cold air to the meltblown air heater/electric heater for hot air/duct heater for heating. Through SCR and PID precise calculation, hot air is output stably at the set temperature to the meltblown die assembly. The meltblown nonwoven heater|electric heater for hot air|meltblown air heater must also resist oxidation from high-temperature air, so stainless steel is preferred for the material.
2. The speed (pressure) of hot air directly affects the fineness of meltblown fibers. In production, the pressure of the airflow is used to represent the speed of the airflow; higher pressure means higher speed. Hot air speed ↑: fiber diameter ↓; single fiber relative strength ↑; bonding effect between fibers in the web ↑, nonwoven fabric strength ↑. Therefore, an air heater with constant temperature, constant wind speed, and high-pressure resistance is needed to ensure the quality of meltblown fabric products.
Components of Meltblown Air Heater
1. The meltblown nonwoven heater is made into a skid-mounted unit consisting of an air heater, a matching temperature control cabinet, and an external Roots blower. Before leaving the factory, all cables and pipelines are connected to ensure constant outlet temperature and stable wind speed. The electric heater for hot air only requires the customer to connect an air duct between the heater outlet and the hot air inlet of the spinning box on site. Turn on the Roots blower, the heater, set the temperature, and the heater starts working. Made into an integrated air heater, it saves the customer trouble and allows for quick production start.
