Coal-fired power generation boiler electrostatic precipitation apparatus

• Main Author: JIEXUAN ZHANG
• Format: Patent
• Language: English
• Published: 02.05.2007
• Subjects: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; PERFORMING OPERATIONS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

A coal fired electricity generating boiler possessing static dust-collecting device provided comprises a shell provided with an air inlet, an air outlet, and a dust-collecting hopper. The interior of the shell is in turn provided with a humidifying and cooling chamber, a horizontal dust-collecting pole dust-collecting chamber, and a longitudinal dust-collecting pole dust-collecting chamber, wherein, the humidifying and cooling chamber is internally provided with a sprayer, gasification barriers, and a guide plate, the interiors of the horizontal dust-collecting pole dust-collecting chamber and longitudinal dust-collecting pole dust-collecting chamber are respectively a horizontal dust-collecting pole consisting of a pole plate with a surface vertical to the air current orientation and a longitudinal dust-collecting pole consisting of a pole plate with a surface parallel to the air current orientation and a corona pole, matching raping devices are respectively provided for the horizontal dust-collecting pole, longitudinal dust-collecting pole, and corona pole, and behind the longitudinal dust-collecting pole arranged with an electrode moving type dust-collecting device consisting of a circular cotton tape, a driving axle, and a dust scraper. The utility model adopts a dust-collecting manner combining a plurality of dust-collecting poles and is provided with a humidifying and cooling chamber which can decrease the content of high resistance dust and coarsing micro-particle dust effectively, thereby enhancing the dust-collecting efficiency of dust-collecting device by a large margin and satisfying the high requirement for the purification of the discharged flue gas.