Melt-blown cloth production equipment, melt-blown extruder detailed explanation

Melt-blowing is a method of preparing fibers by blowing polymer melt with high temperature and high speed air to make it quickly stretched. After the polymer slice is heated and pressurized by the screw extruder into a molten state, it reaches the spinneret hole at the head of the nozzle through the melt distribution channel, and then refines it by stretching two convergent streams of high-speed and high-temperature air. The refined fiber is cooled and solidified on the screen curtain device to form melt-blown nonwovens. The equipment is composed of key equipment such as melt nozzle, automatic charging system equipment component, ultrasonic cleaning machine, air heater, centrifugal fan, screw extruder, melt-blown net forming machine, melt-blown off-line winding machine, melt-blown off-line slitting machine, etc.

The structure of the spinneret is divided into three forms according to the shape of the spinneret: circle, fan and rectangle. At present, circular plate and rectangular plate are used more at home and abroad. In order to suit different varieties of chemical fiber spinning occasions, circular spinneret is divided into flat type, flange flat type, plate ring, flange ring, etc. : rectangular spinneret is divided into flange rectangle and flange groove rectangle, etc., which is mostly used for short fiber spinning with more holes.