Utilizing the principle that the boiling point of water decreases after the environmental pressure is reduced, mechanical pressure filtration dehydration and vacuum drying technology are integrated to achieve the integration of dehydration and drying, and greatly reduce the heat source temperature, vaporization temperature and dehydration and drying of materials such as sludge. Energy consumption throughout the process achieves efficient dehydration, low-temperature drying and process energy conservation. In terms of the production and manufacturing technology of high-temperature resistant drying filter plates, fully automatic programmed production is achieved from feeding, forming, sizing to final processing and assembly. The drying filter plate integrates the functions of filtration, pressure filtration, vacuum pumping, heating and drying. In one, it has good temperature resistance, high mechanical strength, high heat transfer efficiency, good sealing performance, and strong resistance to large temperature changes. Heat source temperature <90℃; vaporization temperature: about 45℃; unit energy consumption <2800kJ/kgH2O; equipment temperature resistance: up to 120℃; water content of incoming and outgoing materials: 90-99% reduced to 30% at a time (the minimum can reach less than 10%). Reduce the moisture content of urban and industrial sludge, industrial solid waste and other materials from 90-99% to below 30% at a time (The minimum moisture content can reach below 10%), which greatly reduces the heat source temperature (above 100℃ to below 90℃), the vaporization temperature (100℃ to about 45℃) and the entire process of dehydration and drying under traditional atmospheric pressure conditions. Energy consumption (unit energy consumption from 3,200 - 3,500 kJ/kgH2O to <2800kJ/kgH2O, saving energy by more than 15%).