The invention discloses a
drying line of pulp moulding that is based on a frequency-varying speed regulation technique, and a production technique of the
drying line, and is applied into a belt
drying line with convectional hot air and used for designing a set of automatic controlling systems with optimized efficiency; the invention implements the modeling of complex objects according to the drying property of pulp moulding and different sizes and weights of wet ground papers, adopts a
process control technique, the alternate-current frequency-varying speed regulation technique and a modern detecting technique, realizes stepless control of frequency-varying speed regulation of a circulating fan, an electric
air door, a dehumidifying fan, a
drive motor of conveying chains according to temperature and
humidity signal that are detected on the spot, reasonably adjusts the running speed of a conveying belt inside a parching channel, the
working temperature of a
desiccator in each segment, and the blast volume of hot air and the
discharge of
water vapor, etc., and forms a reasonable drying curve, thus reducing product deformation to the utmost degree, saving the loss of
electricity energy and
heat energy to the utmost extent, accelerating parching speed, increasing the yield of the parching
production line, and realizing
optimal control.