High thermal efficiency. Because the heat transfer mechanism of drum dryer belongs to heat conduction, the direction of heat transfer keeps the same throughout the operation cycle. Except the heat loss of cover and heat radiation, all the heat is used for evaporation of moisture in drum material film, and the thermal efficiency can reach 70% - 80%.
Large flexibility and wide applicability. Many drying factors of drum dryer can be adjusted. For example, the concentration of feed, the thickness of coating film, the temperature of heating medium and the rotating speed of drum can change the drying efficiency of 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 output.
Short drying time. The drying cycle of materials is usually only 10-300 seconds, which is suitable for thermal sensitive materials. If the drum dryer is set in the vacuum, it can be operated under the condition of decompression.
High drying rate. Because the film coated on the cylinder wall is very thin, generally 0.3-1.5mm, and the direction of heat and mass transfer is the same, the evaporation of the film surface can keep 20-70kg.H2O/m2.h strong.
Installation of the machine is arranged according to the general plan. The ground should be flat. Pressure gauges and safety valves should be installed at the inlet of steam pipes. The flanges of each steam inlet are firmly connected.
It is suitable for drying liquid or viscous materials in chemical, dyestuff, pharmaceutical, food and metallurgy industries.
Periodically check the rotational flexibility of the rotating parts and whether there is any obstruction. The sprocket and other parts should be periodically added with grease, and the errors of measuring devices such as pressure gauges should be regularly corrected. The triangle belt transmission parts should be replaced in time for serious wear and tear.
Detailed maintenance of motors and reducers can be found in the operation and maintenance instructions of motors and reducers.
After the installation of the machine, the test run should be carried out first.
Point the main motor to observe the correct steering of the main drum.
Observe whether the main drum and transmission parts rotate flexibly, 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. When the temperature rises, the speed of the motor and the film uniformity of the material on the drum are adjusted to control the final moisture content of the material.
Start the winch motor, output the dried finished materials, and adjust the speed of the winch motor according to the amount of dried finished products.
|Specifications||Drum size||Effective heating aream2||Drying ability
|Steam consumptionkg/h||Motor powerkw||Outline sizemm||weightkg|
NOTE: If the customer needs, customers can design and manufacture of the upper feed double drum dryers.