1. Introduction
Hazardous waste incineration rotary kiln is mainly used for the incineration treatment of comprehensive hazardous waste. In view of the material characteristics and incineration process requirements of comprehensive hazardous waste, this type of rotary kiln has the characteristics of complete incineration, strong adaptability, high operating rate, low energy consumption, and easy operation and maintenance.
2. Working principle
Hazardous solid waste (including medical waste) that needs to be processed enters the kiln from the feed end (high end) of the cylinder for incineration. Due to the tilt and slow rotation of the cylinder, the material will produce a comprehensive movement that both rolls along the circumferential direction and moves along the axial direction from the feed end (high end) of the barrel to the discharge end (low end). The solid waste material moves in the kiln After internal combustion and decomposition, the solid waste after basic treatment is discharged from the discharge end (low end) of the barrel and enters the secondary combustion chamber for the next step of treatment. The fuel is sprayed into the kiln body from the feed end (high end) of the barrel and completes heat exchange with the solid waste entering the barrel.
3. Structural characteristics
1. The cylinder body adopts two-speed support, the support part is thickened, and the welding adopts automatic submerged arc welding; the kiln tail guard plate is made of cast heat-resistant steel, which is easy to replace.
2. Supporting wheel support device and supporting wheel supporting device: The use of rolling bearings not only simplifies the structure of the supporting wheel, but also improves the reliability of the overall operation, reduces the useless power loss during the operation of the cylinder, and also simplifies maintenance and repair. More convenient.
3. The transmission part uses a variable frequency speed-regulating motor, which can adjust the speed at any time according to specific conditions. It relies on the variable frequency motor and gear drive system to provide power to rotate and stop. Energy saving and environmental protection, high efficiency, high speed regulation accuracy and smooth operation.
4. Auxiliary transmission: An auxiliary transmission motor is used to ensure that the rotary kiln can still operate when the main power supply is interrupted, preventing bending and deformation of the cylinder and facilitating maintenance. It is also equipped with an electric hydraulic block brake to avoid reversal when the kiln is stopped.
5. Kiln head and tail sealing device: Using three layers of flexible sealing (stainless steel sealing flakes + carbon-silicon aluminum fiber composite plate + stainless steel sealing flakes) combined with a labyrinth structure seal, the air leakage rate is low, the sealing performance is better, and the reliability is higher. Moreover, it has a longer service life and is easy to replace, which can significantly reduce its maintenance costs.
4. Project pictures
