Energy-saving production process method for rapid drying and dewatering of paper-plastic products

An energy-saving production process method for rapid drying and dewatering of paper-plastic products comprises steps of:

• providing a top mold and a lower mold to cold extrusion press a blank in a cold extrusion press station, wherein the cold extrusion press station is arranged between a pulp suction forming station and a hot-press shaping station, such that a step of vacuum pulp-suction dewatering, a step of cold extrusion dewatering, and a step of hot-press dry dewatering are executed in turns;
• wherein in the cold extrusion press station, a mold closing gap is formed after the top mold and the lower mold are connected, and the top mold and the lower mold are configured to press the blank;
• wherein in the hot-press shaping station, a mold closing gap between the top mold and the lower mold is equal to a thickness of a finished product, and a thickness of a semi-finished product after being dried in the hot-press shaping station is equal to the thickness of the finished product;
• wherein in the cold extrusion press station, a mold closing gap between the top mold and the lower mold is 1 to 1.3 times more than the thickness of the finished product, and a thickness of a semi-dried blank pressed in the cold extrusion press station is 1 to 1.3 times more than the thickness of the finished product;
• and
• wherein in the pulp suction forming station, a mold closing gap between the top mold and the lower mold is 2 to 2.3 times more than the thickness of the finished product, and a thickness of the blank in the pulp suction forming station is 2 to 2.3 times more than the thickness of the finished product.