The application of micronization technology in the production of traditional Chinese and Western medicine has gained significant attention due to its advantages such as easy absorption, low toxicity, and high therapeutic efficacy. Among various crushing technologies, the fluidized bed ultrafine air jet mill has long held a critical position in the pharmaceutical, food, and heat-sensitive material industries. This is because it offers superior crushing performance, high product purity, and a low crushing temperature. However, the current jet crushing methods suffer from high energy consumption and low efficiency. To address these issues, Chinese technical personnel have developed a series of advanced, high-efficiency, and energy-saving jet crushing equipment through continuous innovation and technological improvements.
One key innovation involves optimizing the nozzle arrangement. Traditional models use a parallel nozzle layout, but the new design introduces a three-dimensional nozzle configuration. By placing several nozzles at an angle around the crushing chamber and adding a central upward nozzle, the system achieves a more uniform and efficient distribution of airflow. This setup increases the collision opportunities between particles, enhancing both powder fineness and production output while reducing material accumulation inside the chamber. According to practical tests, this three-dimensional nozzle design can improve production efficiency by 40% to 60% under the same fineness and energy consumption conditions.
Another major advancement is the full-scale positive pressure operation. Compared to conventional systems, the new model uses innovative technologies to achieve fully automated, continuous production from feeding to product collection. The entire process is enclosed, ensuring a clean environment free from contamination. This eliminates the need for draft fans, simplifies the process, and significantly reduces noise pollution, energy consumption, and equipment costs. For example, a traditional high-pressure induced draft fan consuming 5.5 kW/hour for 8 hours daily over 300 days would result in 13,200 kWh annually. In contrast, the new positive pressure system avoids this component altogether, leading to lower operational costs and improved stability.
In addition, the new system employs a high-precision horizontal classification mechanism, allowing for greater flexibility in product grading. This enables pharmaceutical companies to switch products easily and perform cleaning and maintenance more conveniently. The system also features non-contact sealing methods with no moving parts, ensuring quiet, vibration-free, and wear-free operation. This enhances the long-term reliability of the classification system.
Intelligent feeding and discharge mechanisms further improve efficiency. The new model uses a screw feeder air lock device instead of bulky star valves, enabling real-time replenishment of the silo without disrupting the positive pressure environment. This device is compact, energy-efficient, and requires minimal installation space. The PLC control system ensures consistent feed rates, preventing material bridging and ensuring smooth operation. These innovations not only enhance productivity but also reduce maintenance and operational costs.
Overall, the new generation of jet crushing equipment represents a significant leap forward in efficiency, safety, and sustainability, making it a game-changer in the industry.
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