The structure design of the vacuum type microwave rotary drum dryer is reasonable, easy to operate, and can separateVacuum type microwave rotary drum drying equipment that is oxygen free, prevents the combustion and explosion of flammable substances, has good safety performance, high heat utilization efficiency, high heating efficiency, short working and production time, and has a wide range of applications.

Vacuum type microwave rotary drum drying equipment, which includes a closed box body and a rotary drum installed inside the closed box bodyDrum, sealed covers installed at both ends of the rotary drum, and material feeding ports installed at one end of the rotary drum; The axial and circumferential directions (radially) of the rotary drum are equipped with microwave feed ports, which are connected to a microwave generator. The rotary drum is driven to rotate by a motor, and is provided with a vacuum exhaust port and a material discharge port. The vacuum exhaust port is connected to a condenser, which is connected to a storage tank; The material inlet and outlet pass through a sealed box

1-A moving guide rail is installed inside the sealed box, and the sealing cover can slide along the moving guide rail to ensure smooth opening or closing of the sealing cover, and to ensure the sealing performance after closing, preventing leakage. Higher security performance.

Inside the rotary drum, there is an inclined linear lifting plate installed.

3-Vacuum type microwave rotary drum drying equipment, the material inlet on the rotary drum and the closed box are sealed with double valves, and the double valves are used to seal the front and rear of the material inlet.

4-A vacuum type microwave rotary drum drying equipment, wherein the sealing cover is a packing sealing device, and the packing sealing device comprises a packing seal, a filling powder, and a packing seal.

5-Vacuum type microwave rotary drum drying equipment, the linear lifting plate is made of plates or tubes with circular arcs, with a height of 20-600mm and a thickness of 25-108mm. With the help of the rotating drum, the lifting plate continuously lifts the material, causing it to continuously roll and ensure even heating inside the rotating drum Achieve drying (evaporation, dry distillation) and more uniform heating.

6-The sealed box and rotating drum are connected to the nitrogen filling device. Filling with nitrogen can remove the oxygen inside the rotating drum, preventing it from becoming flammableExplosive substances can ignite or explode under microwave heating, resulting in better safety performance.

7-Microwave feeding ports are installed on both the axial and circumferential directions (radial) of the rotary drum, and each microwave feeding port is connected to a uniform microwave generator. The utility model provides a rotary drum, in which microwave heating sources can be designed at different positions in the axial and radial directions of the outer circumference of the rotary drum, thereby greatly improving the microwave source field intensity and heating efficiency.

8-Vacuum type microwave rotary drum drying equipment, materials are fed into the rotary drum through the material inlet, and microwaves enter the cylinder of the rotary drum through the microwave feed inlet. Microwave energy is directly transmitted to the materials, causing them to heat up and dry (evaporate, dry distillation) until the materials are completely dried (evaporate, dry distillation), and then discharged from the material outlet of the rotary drum to evaporateThe incoming gas is extracted from the vacuum exhaust port and recovered through a condenser, cooling the gas to liquid and recovering it through a storage tank.

1-The sealed box and its internal rotating drum are evacuated to create negative pressure, which can heat and dry materials containing organic solvents and flammable and explosive gases, preventing danger from occurring. The use of microwave heating can achieve rapid heating and drying (evaporation, dry distillation) of materials, thereby improving equipment efficiency.

2. By utilizing the rotation of the rotary drum, the materials inside the rotary drum can roll, achieving uniform heating under microwave irradiation. Realize uniform drying (evaporation, dry distillation) effect of materials. By using microwave heating, there will be no open flames and contact with the surrounding environment is avoided. The equipment has a high safety level.

3. Using microwaves to dry (evaporate, dry distill) materials can lower the operating temperature and prevent the material itself from producing other volatiles due to high temperatures, which can lead to secondary environmental pollution.

4. Microwaves are fed into the rotary drum drying equipment at both ends or radially as a heat source to heat the inside of the drum, causing the volatile components on the surface (inside) of the material to evaporate at a lower temperature. The material is heated at a lower temperature, which can avoid the production of other secondary volatiles caused by high material temperature and secondary pollution. High heat utilization efficiency, high heating efficiency, short production time, no open flame phenomenon during the production process, and safe dry environment for equipment.

5. The new method uses microwave heating to achieve material drying (evaporation, dry distillation), replacing other heating methods.

Mainly used for water evaporation or organic solvent evaporation of materials Specially suitable for the drying (evaporation, dry distillation) recovery of cutting fluids for photovoltaic materials, oil sludge from oil storage tanks, oil drilling rig oil chips, oil shell salts, sewage, and sludge, with a wide range of applications.