Sino Chemtech

Key words: double drum dryer, drum dryer, drum scraper dryer
Category: Drying equipment series
Product overview: The drum dryer is a continuous heating and conduction type rotating continuous drying equipment. The rotating drum passes through its lower trough, and adheres to a thick material film. The heat is transported to the inner wall of the drum through the pipe, transferred to the outer wall of the drum, and then transferred to the feeding film, so that the moisture in the material film is evaporated, dehumidified, and dehumidified. The moisture-containing material is dried. The dried material is shoveled off the drum by the scraper installed on the surface of the drum, until it is placed on the scraper...
working principle
Drum dryer is an internal heating conduction type rotating continuous drying equipment. The rotating drum passes through its lower trough, and adheres to a thick material film. The heat is transported to the inner wall of the drum through the pipe, transferred to the outer wall of the drum, and then transferred to the feeding film, so that the moisture in the material film is evaporated, dehumidified, and dehumidified. The moisture-containing material is dried. The dried material is shoveled away from the drum by the scraper installed on the surface of the drum, to the screw conveyor placed under the scraper, and the dried material is collected and packaged through the screw conveyor.
Performance characteristics
◎High thermal efficiency. Because the heat transfer mechanism of the drum dryer is heat conduction, the direction of heat transfer remains the same throughout the operation cycle. Except for cover heat dissipation and heat radiation loss, the rest of the heat is all used for the evaporation of the moisture content of the tube material film, and the thermal efficiency can reach 70%. -80%.
◎Great operating flexibility and wide applicability. Many drying factors of the drum dryer can be adjusted. Such as the concentration of the feed, the thickness of the coating material film, the temperature of the heating medium, and the rotation speed of the drum, etc., can change the drying efficiency of the drum dryer, and many factors are not related to each other. This brings great convenience to the drum drying operation, so that it can adapt to the drying of a variety of materials and the requirements of different yields.
◎Short drying time. The drying cycle of materials is generally only 10-300 seconds, which is suitable for heat-sensitive materials. If the drum dryer is installed in a vacuum, it can be operated under reduced pressure.
◎High drying rate. Because the material film applied by the paint on the cylinder wall is very thin, generally 0.3-1.5mm, and the heat and mass transfer directions are consistent, the surface of the material film can maintain an evaporation strength of 20-70kg.H2O/m2.h. Install   
The installation of this machine is arranged according to the general drawing, the ground should be flat, pressure gauge and safety valve should be installed at the steam pipe inlet, and the steam inlet flanges should be connected firmly.
Adapt to materials
◎Suitable for drying liquid or more viscous materials in the chemical, dye, pharmaceutical, food, metallurgical and other industries. maintain
◎Regularly check the rotation flexibility of the rotating parts and whether there is jamming. Grease should be added to the sprocket and other parts regularly, and the errors of measuring devices such as pressure gauges should be corrected regularly. If the V-belt transmission parts are severely worn, they should be replaced in time.
◎For the maintenance of the motor and reducer, please refer to the operation and maintenance manual of the motor and reducer. debugging After the machine is installed, a trial run experiment should be carried out first
◎ Jog the main motor to observe the correct rotation of the main drum.
◎Observe whether the rotation of the main drum and each transmission component is flexible, observe whether the steam inlet and outlet are connected, and whether the pressure gauge is within the working pressure range.
◎Start the motor, the main drum runs smoothly. After the temperature rises, the material is added and the motor speed and the uniformity of the film on the drum are adjusted to control the final moisture content of the material.
◎Start the auger motor, output the dried finished materials, and adjust the auger motor speed according to the amount of the dried product.
Technical specification