Compressed air plays a vital role in pharmaceutical factories. Its application runs through the whole process of pharmaceutical production and is directly related to product quality and production safety. The following is a detailed description based on the characteristics and technical specifications of the pharmaceutical industry:
1. core application scenarios
- process power drive
- equipment operation compressed air drives pneumatic valves, pumps, agitators and other equipment to ensure the precise execution of material transportation, reaction kettle stirring, filtration and other processes.
- Aseptic operation: In the production of sterile preparations, compressed air is controlled by the pneumatic actuator to avoid the risk of contamination caused by direct contact with personnel.
- Clean environment maintenance
- surface Purging in the aseptic distribution room, the compressed air is filtered by high efficiency filter (HEPA) and used to purge the surface of the equipment to remove particles and microorganisms.
- Environmental monitoring: Some clean rooms use compressed air to drive particle counters to monitor the number of suspended particles in the air in real time.
- Packaging and repackaging
- pneumatic sealing: Compressed air-driven sealing machine completes the heat sealing of aluminum foil and plastic film to ensure the tightness of drug packaging.
- Precise sub-packaging: In the powder packaging line, compressed air helps to achieve precise control of the dose of each bottle, and the error can be controlled within ± 1%.
- Utilities Support
- air conditioning system compressed air drive pneumatic control valve, maintain the clean room temperature, humidity and pressure stability.
- Sewage treatment through the air flotation process, compressed air suspends the tiny particles in the sewage to the surface, which is convenient for subsequent filtration and treatment.
2. quality assurance measures
- multistage filtration system
- precision filtration three-stage filtration (5 micron, 1 micron, 0.01 micron) is adopted to remove particles and oil mist in compressed air.
- sterilization filtration: In the sterile area, the compressed air is passed through a 0.22 micron sterilization filter to ensure sterility.
- Drying and water removal
- freeze-drying: Cool the compressed air to below -20°C to remove most of the water vapor and prevent the condensate from polluting the product.
- adsorption drying: In the gas scene of precision instruments, molecular sieve is used to absorb residual moisture, and the dew point can reach below -70 ℃.
- On-line monitoring and alarm
- dew point meter: Real-time monitoring of compressed air dew point temperature to ensure compliance with process requirements (such as -40 ℃ below).
- Oil detector: In the application of oil models, the oil content in the compressed air is detected to avoid the risk of pollution.
3. compliance requirements
- regulatory Standards
- GMP specification pharmaceutical factories should follow the Good Manufacturing Practices (GMP), which have clear requirements for the quality, monitoring and verification of compressed air.
- ISO 8573 standard: Compressed air quality to meet ISO 8573-1 standards, such as solid particles, moisture and oil content levels.
- Verification and Recording
- regular inspection: Comprehensive inspection of compressed air quality, including microbial limit (e. g. ≤ 1 CFU/m & sup3;) every six months.
- Audit Trail record the operating parameters, maintenance records and test results of the compressed air system to ensure traceability.
Conclusion compressed air is an indispensable public medium for pharmaceutical plants, and its applications cover process power, clean environment maintenance, packaging and distribution and utility support. In order to ensure drug quality and production safety, pharmaceutical factories need to strictly control the quality of compressed air through multi-stage filtration, drying treatment and online monitoring, and follow GMP and ISO 8573 and other regulatory standards for verification and management.
