In the field of powder processing, WFJ micro crushers have become a commonly used equipment in industries such as food, medicine, and chemical due to their ability to handle various types of materials. This device achieves efficient crushing of materials through a reasonable working mechanism and targeted structural design, meeting the requirements for powder particle size in production.
1、 Working principle: Efficient and detailed core logic
The WFJ micro crusher adopts a wind selective and mesh free design, and achieves crushing by using high-speed rotating blades and fixed gear rings to impact, shear, and friction the material. After the material is sent into the crushing chamber by the screw conveyor, small particles are brought into the classification chamber under the action of negative pressure airflow, while large particles are thrown back to continue crushing due to centrifugal force. The speed of the graded impeller can be adjusted, and particle size classification is achieved by controlling the balance between centrifugal force and centripetal force of the airflow.
2、 Structural features: Design details adapted to production needs
（1） Core component design: ensuring crushing efficiency and stability
•Crushing chamber and impellerThe crushing chamber adopts a cylindrical design with smooth and wear-resistant inner walls, reducing material residue and wear; The impeller is made of high-strength alloy material, and the blades are precisely machined to generate stable airflow vortices during high-speed rotation, ensuring uniform material impact and avoiding excessive or insufficient crushing.
•Grading systemThe grading wheel and crushing chamber are independently driven, and the particle size of the finished product can be flexibly controlled by adjusting the speed (suitable for 80-800 mesh); The graded area is well sealed to prevent mixing of coarse and fine powders and ensure the purity of the finished product.
•drive systemThe motor directly drives the impeller and grading wheel, with a simple transmission structure that reduces energy loss; The motor is equipped with overload protection, which automatically stops when the load exceeds the standard, avoiding damage to components due to blockage or hard materials.
（2） Auxiliary system design: Improve operational and cleaning convenience
•Feeding and collection systemA regulating valve is installed at the feeding port to control the feeding speed and adapt to materials with different humidity and fluidity; The collection system adopts bag filtration or cyclone separation design, with high collection rate of fine powder and easy disassembly and cleaning of filter components, reducing the risk of cross contamination.
•Cleaning and maintenance of structuresThe device casing is designed with a quick detachable feature, allowing for easy access to the crushing chamber and grading area upon opening the cover plate, facilitating the cleaning of residual materials; The key components (impeller, grading wheel) are fixed with bolts for easy disassembly and replacement, reducing maintenance difficulty and time.
•safety protectionThe equipment is equipped with a safety interlock device. When the crushing chamber cover is not closed or the door is not locked, the motor cannot start to avoid personal injury; Simultaneously equipped with dust-proof seals to reduce dust spillage and improve the production environment.
（3） Detail optimization adapted to multiple scenarios
According to the needs of different industries, the equipment reserves adaptation space in the structure: the material contact parts of the food and pharmaceutical industry models are made of stainless steel material, with surface polishing treatment, in compliance with hygiene standards; Chemical industry compatible models can choose corrosion-resistant materials to cope with acid and alkali material corrosion; In addition, different specifications of feeding hoppers and collection tanks can be matched according to the production scale, suitable for batch production or small batch experimental processing.