Agitation Equipment Drive Control System Solution

Mixing equipment is a device that forces convection and uniform mixing of solid, liquid, and gaseous media. It is widely used in the petroleum, chemical, pharmaceutical, and steel industries. Traditional systems use an asynchronous motor with a belt-driven gearbox and agitator shaft, resulting in complex structures, high failure rates, elevated maintenance costs, and low efficiency. Current challenges include poor system efficiency, inadequate speed control, high operating costs, excessive vibration, high starting current, and limited intelligence. Wolong's Low-Speed Permanent Magnet Direct Drive System eliminates the belt gearbox by using a direct-drive permanent magnet motor coupled to the agitator shaft. This design offers a simplified transmission system, reduced failure rates, lower maintenance costs, higher efficiency, smooth starting, and strong overload capacity. The low-speed direct drive system integrates permanent magnet motors, drive controllers, PLCs, sensors, and industrial internet connectivity. By monitoring equipment parameters in real time and providing feedback, it ensures the entire system operates at peak efficiency. The system topology consists of the Wolong iMotorLinx Shunzhi Cloud Industrial Internet Platform, WD200 Series High-Performance General-Purpose Variable Frequency Drives (VFDs), ECC VFD Control Cabinets, high-performance PLCs, wired/wireless integrated temperature-vibration sensors, and permanent magnet direct drive motors. The permanent magnet direct drive system comprises the motor, a dedicated VFD, and the system control cabinet. The TYCP5 series low-speed permanent magnet motor for mixing applications is professionally designed for mixing conditions, featuring high efficiency, high power factor, strong overload capability, low vibration, and low noise. The dedicated VFD employs advanced control algorithms for optimal matching with the permanent magnet motor. Its vector control controller ensures precise torque regulation with high reliability, performance, scalability, and ease of cabinet integration. It can be equipped with reactors and filtering devices to prevent grid shock, interference, or disturbance to surrounding equipment. The system control cabinet centrally manages all internal components, collects data, and provides real-time protection. The TYCP5 series covers frame sizes 280S through 560M, with power ratings from 3 to 355kW. Complete selection parameter tables are available for seven speed settings: 30, 45, 60, 75, 90, 110, and 130 r/min. These tables include rated currents for 380V and 660V systems, efficiency ranging from 84.7% to 96.2%, power factors from 0.96 to 0.99, rated frequency, rated torque, maximum torque multiplier 1.8, weight, and compatible WD200-T3 and WD200-T6 VFD models. Installation dimensions (D, E, F, G, M, N, P, R, S, T), flange hole counts, and overall dimensions (HF, L) are provided for each frame size. A comprehensive benefit analysis of the permanent magnet direct drive system, using a 11kW system with a total load shaft power of 4.77kW as an example: The variable frequency permanent magnet direct drive solution achieves a total transmission efficiency of 92%, with a total input active power of 5.18kW and a load-point motor power factor of 0.96. The total input apparent power is 5.4kW. In contrast, the original solution (a 11kW motor with gearbox and VFD) has a total transmission efficiency of 72%, a total input active power of 6.6kW, a power factor of 0.89, and a total input apparent power of 7.42kW, resulting in an energy savings rate of 21.5%.

Use Cases:New installations and energy-efficient retrofits for mixing equipment such as agitators, reactors, slurry tanks, and mixing vessels in the petroleum, chemical, pharmaceutical, and steel industries.