tailieunhanh - AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 5

Lọc tĩnh điện được sử dụng cho mục đích loại bỏ các hạt vật chất khô từ dòng khí. Họ về cơ bản áp dụng một khoản phí điện các hạt và cung cấp đủ diện tích bề mặt cho rằng hạt để di chuyển các tấm thu và bị bắt. Các tấm thu rap định kỳ để tháo gỡ các hạt thu được vào một phễu nhận. | chapter 5 Electrostatic precipitators Device type Electrostatic precipitators are used for the purpose of removing dry particulate matter from gas streams. They basically apply an electrostatic charge to the particulate and provide sufficient surface area for that particulate to migrate to the collecting plate and be captured. The collecting plates are rapped periodically to disengage the collected particulate into a receiving hopper. Typical applications and uses Dry electrostatic precipitators are used to remove particulate matter from flue gas streams exiting cement kilns utility and industrial power boilers catalytic crackers paper mills metals processing glass furnaces and a wide variety of industrial applications. An electrostatic precipitator is a constant pressure drop variable emission particulate removal device offering exceptionally high particulate removal efficiency. There is a unique jargon involving electrostatic precipitators. If you contemplate purchasing or studying the use of one perhaps the following buzzword list will prove helpful. It is in alphabetical order so if you see a word that you do not understand just jump down the list to find the offending word. Air splitter switch An air splitter switch is mounted at the high voltage bushing contained on the transformer rectifier. The purpose of the switch is to isolate one of the two electrical sections served by the transformer rectifier while the other operates. Anti-sneak baffle A deflector or baffle that prevents gas from bypassing the treatment zone of the precipitator. Arc Arcs occur within the high voltage system as a result of uncontrolled sparking. Measurable current flow is detected damage will occur to internal components. This chapter is contributed by Bob Taylor BHA Group Inc. Kansas City Missouri. 2002 by CRC Press LLC Figure Typical electrostatic precipitator in operation BHA Group Inc. . Aspect ratio The treatment length divided by treatment height. A higher number is more .