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ICESP X CONFERENCE PAPER ABSTRACTS 5A SERIES

Held in Cairns, Australia
June 25 - 29, 2006

The International Conference on Electrostatic Precipitation (ICESP) is the official conference of the International Society for Electrostatic Precipitation (ISESP).  

The following is a list of the Abstracts for the 5A Series papers from the X ICESP Conference.  

5A1
SONIC HORNS HAVE FULLY REPLACED THE TUMBLING
HAMMER RAPING IN AN ESP FOR THE SIEVING SYSTEM OF IRON ORE SINTER MACHINE
HAN KE, TAN RUITIAN AND WAN RONGHUI

Abstract

In China, firstly using sonic horn fully instead of tumbling hammer to rapping down the dusts from the ESP electrodes of a sinter band sieving system in Jiuquan Iron and Steel Company was carried out in May 2004.

This one chamber three fields ESP have a flowing cross section area of 60 m2 with a design collection efficiency of 90%. Its tumbling hammer rapping devices encountered a lot of troubles, so that it must be fixed through about every one month with a spare parts expense of 70~80 thousands Yuan RMB for one year. After the first overhaul in August 2002, the dust emission has been 120 mg/Nm3.

Therefore, it was tried to use the sonic horn solely instead of the original tumbling hammers for rapping down the dust from both of the corona and collecting electrodes. The horns were put into operation since May 2004. Till now, the once year smooth operation shown that satisfying result given a emission of 80 mg/Nm3 have been reached. Because of the non-contact rapping does not injure any ESP inner parts, the spare parts expense and the repair fee were saved.

The principle of sonic rapping and the design features are also explained shortly.

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5A2 
SIZING AND DESIGN OF ELECTROSTATIC PRECIPITATORS FOR IRON ORE SINTER BAND
GUO RUILIN, MA WENLIN, KANG JINHUA ,KANG JIANBIN

Abstract

As the development of sintering process and growing strict regulation on particulates emission, the requirement on sinter waste gas electrostatic precipitator (hereinafter referred to as ESP) becomes more and more stringent. However, processes such as high degree of alkali sintering process and operating under high negative pressure have significantly effected on process ESP. In this paper, several issues are fully discussed which should be taken into account when sizing ESPs based on the features of gas and particulates to be treated by process ESP for a sinter in order to meet the requirement of process dedusting for a sinter, to reach the aim of gas purification.

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