The equipment used in this project is a new energy-saving paper tube dryer introduced by our company--air source high-temperature heat pump paper tube dryer. The entire drying room can use an area of 144m³, and the drying capacity can reach 4 tons. The structure of the drying room is made of heat-insulating extruded board, which is insulated and durable. The control system adopts PLC+ human-machine interface, the control is precise and stable, and the unattended automatic operation has been realized. The heat source uses a high temperature heat pump air source dryer with an energy efficiency ratio of up to 3.5. It has the advantages of high temperature and low power consumption. Save you running costs. And the equipment has no three waste discharge.The equipment is a set of environmentally friendly and energy-saving drying equipment.
Methods / steps of paper tube drying processing:
Material paper cutting: the sand pipe paper with a uniform thickness, low moisture content and smooth appearance is used as the main body paper, and the impregnated paper is selected as the surface paper; according to the size of the specifications required for the manufacture of Dongguan high-end paper pipe, The paper tape of the required size is obtained by placing the sand tube large roll and the surface paperlarge roll in the cutting machine.
Reel tube: the paper tape after glue is wound into tube on the enthusiastically coiled pipe machine.
Rough cutting:after the paper tube is placed on the coated resin and passed through the air dryer at a uniform speed, it is roughly cut into a section of paper pipe of a certain length.
Fine cutting: extruded paper tube according to the required size development rough cutting, after cutting and the end of the paper tube finishing.
Dry paper pipe: put the paper pipe section into Nanchang Dryfree heat pump paper pipe drying room, open the dryer power, close the oven door, set the drying parameters and start the dryer until the water content of the paper pipe is lower than 12%.
Tape glue: how many layers of paper tape and through the groove disposal of the surface paper tape in sequence from top to bottom layer of dislocation superposition rule into parallel into the tape coating machine, The outer surface of the main paper tape and the surface paper tape is evenly coated with a layer of paper tube used specially for glue.
Extrusion: after cooling the dry section of the paper pipe to room temperature, one by one put into the preheated to 150-280 ℃ temperature of the molding mold to develop internal extrusion molding, in order to make the outer surface of the paper tube has been coated resin to fully solidify; The molding temperature of the mould is 150-280 ℃.
Groove detail processing: the surface paper belt is placed into the groove machine to handle the groove details on both sides of the paper belt