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Air Pollution Control Systems for Boiler and Incinerators Part 6

Tham khảo tài liệu 'air pollution control systems for boiler and incinerators part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | TM 5-815-1 AFR 19-6 and liquid to entrainment separator U.S. Army Corps of Engineers Figure 7-Jf. Gas atomized spray venturi scrubber U.S DIRTY GAS IN J----u LIQUOR SPRAYS movable VENTURI blades TO LIQUID ENTRAINMENT SEPARATOR a. Movable-blade venturi DIRTY GAS IN TO LIQUID ENTRAINMENT SEPARATOR c. Redial-flow Army Corps of b. venturi I0U0R NÌÊT MOVABLE DRUM d. Engineers DIRTY GAS IK plumb bob actuator IQUOR TO LIQUID ENTRAINMENT SEPARATOR Plumb-bob venturi movable flooded LIQUOR INLET LIQUOR SPRAY TO LIQUID NTRA1NMENT separator Figure 7 5. Throat sections of variable venturi scrubbers 7-5 TM 5-815-1 AFR 19-6 7-3. Application a. Particulate removal. Scrubbers may be used as control devices on incinerators and boilers for fly ash collection. The plate spray venturi and moving bed types have been successfully applied however their application has been limited because they require more energy than dry particulate collection devices of the same collection efficiency water supply and recovery system more extensive solid waste disposal system system to control the scrubbing process in response to gas flow rate changes. b. In making decisions on applicability to a particular process figure 7-7 is useful in determining all components which must be taken into consideration. c. Gaseous removal. Scrubbers have been used primarily for the removal of sulfur oxides in stack gases. See chapter 10 for a more detailed description of sulfur oxides SOx control techniques. However as new control systems are devised simultaneous removal of gases and particulate material will become the accepted procedure for designing scrubbers for combustion processes. 7-4. Treatment and disposal of waste materials Wet scrubber systems are designed to process exhaust streams by transfer of pollutants to some liquid medium usually water seeded with the appropriate reactants. Liquid effluent treatment and disposal are therefore an essential part of every wet scrubber system. Installation and maintenance