Nanjing Rotating DecanterAlso known as a decanter, it is one of the key mechanical equipment in the SBR process. It can be divided into siphon type decanter, rotary type decanter, self floating type decanter, and mechanical type decanter. Currently, the rotary type (a type of mechanical type decanter) is widely used in China. The decanter is a device used in the SBR process to regularly remove clarified water. It has the ability to decant clarified water from a stationary pool surface without stirring the sediment, ensuring the quality of the effluent. Due to the intermittent reaction adopted in the SBR process, the inflow, reaction, sedimentation, and drainage are completed in the same tank, without the need for a secondary sedimentation tank and sludge reflux equipment. Therefore, it has the advantages of small land occupation, low investment, high efficiency, and good effluent quality; Simultaneously connecting multiple SBR tanks can provide both the continuity of traditional sludge treatment processes (continuous inflow) and the intermittency of typical SBR processes, making it suitable for water quality, quantity, and large variations. Therefore, it has been widely used both domestically and internationally.
　　Nanjing Rotating DecanterMain technical performance of the equipment
1. The main body of the device adopts three-point rotating support, and each unit has a compact structure and smooth operation.
2. Floating buoy design, based on changes in the water level of the pool, always maintains the level of the buoy and prevents debris, achieving excellent slag blocking effect.
3Nanjing Rotating DecanterThe uniform linear motion driven by the cycloidal pinwheel reducer and the screw drive can ensure a continuous and uniform water decanter during equipment operation.
4. The speed of equipment operation, no sludge retention during decanting, stable water quality, no main power fluctuations, no noise, and can automatically complete the decanting process.
Rotating part 5, underwater mechanical sealing device, can ensure that the rotating parts of the centrifuge in operation have no water leakage.
6. The mechanical transmission part of the Nanjing rotary decanter adopts a cycloidal pinwheel reducer, effectively ensuring sufficient thrust speed and stable decanter. The electric push rod is equipped with multi-stage protection to ensure the operation of the equipment without damage.
7. Normal operationNanjing Rotating DecanterThe decanter can be adjusted to a large depth within the range of 0 using the built-in electrical control cabinet (decanter depth regulator).