Working Principles and Characteristics of Drug Screening Machine

1. Working principles of drug screening machine

Drug screening is a step in the modern drug development process to test and obtain specific physiologically active compounds. It refers to the process of selecting a certain compound from a large number of compounds or new compounds through standardized experimental methods, and the selected compound has higher activity on a specific target. With the development of drug development technology, the physiological activity experiments of new compounds have gradually changed from early confirmatory experiments to screening experiments, the so-called drug screening.

The high-efficiency screening and net cleaning of the current drug screening machine make it easy to screen ultra-fine powder. Based on the traditional vibrating screen, the drug screening machine introduces a low-amplitude, high-frequency ultrasonic vibration wave (mechanical wave) on the screen to improve the screening performance of ultra-fine powder, which is especially suitable for users of high value-added fine powder.

The working principle of the drug screening machine: The ultrasonic vibration wave (mechanical wave) attached to the screen makes the ultra-fine powder receive huge ultrasonic acceleration, thereby inhibiting the net blocking factors such as adhesion, friction, flat falling, wedging, etc., which can significantly improve the efficiency of screening and net cleaning.

2. Characteristics of the drug screening machine

The current drug screening machine improves the flatness of low-density powder in gravity sedimentation (light contact between the powder and the net opening), slippage effect, improves the retention or wedging of high-density metal in the net opening, and improves the adhesion effect of electrostatic powder, thereby improving the screening efficiency and screening quality. It is expressed by the screening pass rate. Under normal circumstances, the pass rate is increased by 50% to 100% compared with no ultrasonic vibrating screen, and the pass rate is increased by 400% in individual cases.

(1) The drug screening machine reduces or does not have net cleaning time;

(2) The drug screening machine does not produce bouncing balls and other auxiliary substances, which may pollute the powder;

(3) The drug screening machine maintains the L size of the net and stabilizes the screening accuracy;

(4) The drug screening machine decomposes the adherent substances and reduces the on-screen substances;

(5) The drug screening machine reduces the number of screenings.