Tablets & Capsules

© Copyright Tablets & Capsules 2021 camfilapc.com 21 Continuous operation High-efficiency compact dust collec- tors that self-clean filter cartridges in segments, one quarter at a time, are capable of 24/7 operation. These col- lectors continuously clean without in- terrupting airflow or operations. This segmented cleaning facilitates the pro- duction process because the collector is always online. Cleaning individual segments of the filter element reduc- es airflow variations, which maintains duct air velocities and decreases pres- sure fluctuations in the ducting and associated process machinery. Containment Most pharmaceutical applications require isolation and containment because the dust generated can be extremely potent and must not be released into the surrounding envi- ronment. In addition to maintaining a safe workspace, a properly operat- ed, contained dust collection system provides a physical barrier between the product and the environment, which significantly reduces the risk of cross-contamination. Make sure the compact collector uses bag in/bag out (BIBO) safe-change systems. This will provide full dust containment to ensure safe changeout at the primary-filter, HEPA-filter, and dust-discharge stages. Filtration Ideally, select antistatic, carbon-im- pregnated, or polytetrafluoroethylene (PTFE) media for the primary pleated filters. Use antistatic filters where con- veyed dusts generate static charges that require dissipation. You also should use cartridge filters with static-dissipative media in explosive-dust applications, conforming to NFPA requirements and reducing the risk of ignition due to static electricity discharges. PTFE wide-pleat technology provides superior dust release, long filter life, and high filtration efficiency. These types of filter media offer exceptional dust release for extended life, ener- gy savings, and reduced changeout schedules. They also prolong the ser- vice life of the second-stage HEPA filters that provide 99.995 percent efficiency to capture the finest, most harmful dust particles. The HEPA filter should also function as a tested flame- front barrier. A properly pleated filter allows the collected dust to release from the filter media, keeping the resistance through the filter lower for a longer time than a filter with tightly packed pleats. When the pleats of the filter media are tight- ly packed, the dust collector's reverse pulse, filter cleaning system will have difficulty removing dust that becomes lodged between the pleats. Tightly packed pleats increase the air resis- tance through the filters and diminish airflow. With wide-pleat filters, 100 percent of the media is usable, which maximizes airflow. Airflow Determine if your solid dose manu- facturing operation requires a com- pact cartridge dust collector with one or two primary filter cartridges. A sin- gle primary filter works well for pro- cesses that require up to 600 cubic feet per minute (cfm) of airflow. Air volumes between 590 and 1,765 cfm require a collector with two filters to increase filtration capacity and pro- vide the proper air-to-media ratio for the application. On average, dust collectors used in coating and fluid-bed dryer oper- ations require higher airflows and pressures than those serving tablet manufacturing. This is especially true for continuous coating processes be- cause dust loads are heavier and ad- ditional moisture may require more frequent filter changes. For solid dosage processing, a dust collector that is explosion resistant offers major benefits by providing the highest protection in accordance with NFPA combustible-dust stan- dards. A compact collector can safely contain an explosion event without the need for additional expensive ex- plosion-protection systems, and you can safely install the collector indoors close to the processing area. Look for a housing that is pressure/shock resis- tant and that can maintain its integrity with no damage during an explosion event. Ensure that both the primary and secondary filter stages can stop a flame front to double safety against flame propagation. And make sure the collector is fully antistatic, including paint, bonding, and grounding, to- gether with full testing documentation from the manufacturer. Reference National Fire Protection Association. NFPA 654, "Standard for the Preven- tion of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids." Accessed 2/12/19. TESTIMONIAL "Camfil's equipment is extremely robust and flexible in terms of size and specification including the safe change containment options. Their worldwide presence, support and reputation as quality dust collector manufacturer is extremely important to BOSCH Manesty and its customers." —Ian Harrop, Head of Sales Product Engineering, The Bosch Group Camfil APC Resources, Click Here

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