Low energy new type of plywood hot pressing machinery equipment
With the transformation of the plywood industry towards green manufacturing, low-energy hot pressing equipment has become the core direction of industry technological upgrading. The new plywood hot pressing machinery equipment has achieved a leap in energy efficiency through multiple technological innovations, with its core breakthroughs reflected in three major areas: heating system, thermal energy management, and structural optimization.
Innovation of Electromagnetic Direct Heating Technology
Traditional thermal oil heating has problems such as high thermal conduction loss and lagging temperature rise and fall. The new equipment adopts electromagnetic induction heating technology, and the hot press plate is equipped with high-frequency electromagnetic coils to directly heat the metal substrate, increasing the thermal conversion efficiency to over 95%. Taking the HY214X8/6A-15 equipment from Weihai Hanwei Machinery as an example, its electromagnetic heating module controls the surface temperature difference of the hot pressing plate within ± 3 ℃, saving 30% energy compared to traditional oil heating systems. Meanwhile, the electromagnetic coil supports independent zone temperature control, enabling precise thermal management for plywood of different thicknesses.
Thermal energy recycling system
The equipment adopts a four-dimensional insulation structure, with a dual inlet and dual outlet design for the hot press plate combined with a nano level insulation coating, reducing the heat dissipation rate to 8%. The 25 layer hot press machine of Qingdao Longtaihao Machinery is equipped with a thermal energy recovery device, which guides the waste heat discharged from the cooling stage into the pre pressing process. Combined with a PLC intelligent temperature control system, the energy consumption of a single batch production is reduced by 22% compared to traditional equipment.
Lightweight hydraulic system
By optimizing the plunger cylinder structure and utilizing servo drive technology, the equipment achieves dynamic pressure compensation. A new type of 1000T hot press adopts a dual plunger cylinder synchronous control system, reducing the hydraulic system power to 26kW and increasing the closing speed to 4m/min. Coupled with the intelligent switching mechanism between low-pressure and high-pressure pumps, standby energy consumption is reduced by 45%.
