The application of FGIFD200 compact Frequency Converter in Jet Mill
In the modern industrial production field, the air flow pulverizer, as an efficient pulverizing device, has been widely applied in multiple industries such as chemical engineering, medicine, and food. With the continuous development of technology, the application of low-voltage frequency converters in air flow pulverizers has provided strong support for the improvement of equipment performance. This article will introduce the specific application case of the FGIFD200 compact frequency converter in air flow pulverizers.
1.Overview of the Air Jet Mill System
Working Principle
The air jet mill, together with the cyclone separator, dust collector and induced draft fan, forms a complete crushing system. During operation, compressed air, after being filtered and dried, is injected into the crushing chamber at high speed through specific nozzles (such as Laval nozzles). At the intersection of multiple high-pressure airflows, the material is repeatedly collided, rubbed and sheared to be crushed. The crushed material, under the suction force of the fan, moves with the ascending airflow to the classification zone. Under the strong centrifugal force generated by the high-speed rotating classification turbine, coarse and fine materials are separated. Fine particles that meet the particle size requirements pass through the classification wheel into the cyclone separator and dust collector for collection, while coarse particles fall back to the crushing zone for further crushing.
Process flow chart of air jet mill for laboratory use
Product Features
Precise classification: Utilizing flow field optimization technology, the particle size control range is 1-74 μm (the finest can reach sub-micron level).
Wide application: It can handle materials with a Mohs hardness of 1 to 10, and is particularly suitable for the deagglomeration of cohesive ultrafine powders.
Compact design: The laboratory-specific model occupies less than 2.5 square meters.
2. System Electrical Configuration
Control System Architecture
Human-machine interface: 7-inch color touch screen (resolution 800×480).
Control core: The PLC communicates with the inverter via the MODBUS RTU protocol.
Speed control system: FD200 series frequency converter.
3. Key Technologies of FD200 Frequency Converter
Space saving
Book-style structure (reducing the volume by 30% compared to competitors), supporting rail installation, side wall installation, wall mounting, and side-by-side installation;
Intelligent control
Built-in PID algorithm enables precise control.
Safety protection
It has three protections: overcurrent protection, overvoltage protection and phase loss protection.
Communication compatibility
Supports the MODBUS industrial protocol, facilitating system integration.
4.Application effect
The equipment failure rate has decreased, resulting in reduced maintenance costs for the equipment.
The installation space requirement has been reduced by 45%, and the cost of the electrical cabinet has been saved by approximately 20%.
Compared with the traditional V/F control method, the speed control accuracy under vector control is higher.
The precision of the step motor control has been improved, thereby enhancing the product qualification rate.
5.Conclusion
The successful application of the FGI FD200 compact frequency inverter in the air flow pulverization system indicates:
Its high-precision vector control effectively solves the problem of particle size control in ultrafine powder processing.
The compact design is particularly suitable for usage scenarios such as laboratories where space limitations are a concern.
