The invention relates to a low glue consumption method for making a
medium density fiberboard, which comprises the following steps of: material preparation, i.e.
processing the raw materials of small dimension wood,
brush wood and the like into wood chips by adopting a drum chipper;
fiber preparation, i.e. sending qualified wood chips to a wood
chip cooking pot through a
belt conveyor, introducing
papermaking waste liquid into a boiler to carry out cooking
softening treatment after filtering the
papermaking waste liquid, sending the wood chips which are cooked and preheated into a thermofiner to carry out mechanical separation through a feeding screw, and filling molten
wax before the wood chips enter a
grinding chamber body of the thermofiner, so that after the wood chips are separated into the fibers, the
wax is uniformly distributed on the surfaces of the fibers;
sizing and
drying of the fibers, wherein a production process of firstly
sizing and then
drying is adopted; pavement and formation of a board blank; hot-press forming, i.e. sending the single board blank into a
hot press to carry out
hot pressing through a
loader, so that under the combined action of heat and pressure,
moisture in the board blank is gasified and evaporated, the density of the board blank is improved, glue is cured and a waterproof agent is redistributed; and post-
processing, i.e. finally, sending the obtained product into a sanding
machine to carry out
surface processing. The low glue consumption method for making the
medium density fiberboard is simple and convenient.