Although electrostatic separators are an established method, practical experience often shows unsatisfactory separation results or on-line availability. Some of the reasons for this are insufficient aerodynamic design and widely varying fine particulate properties coupled with operating conditions in the furnace that are not ideal. In addition to increased emissions, this can also result in damage or even fires in the separator.
In order to ensure that the right degree of separation and on-line availability is reached in practice, electrostatic separators have to be adjusted to the normal operating conditions seen in the wood furnaces during heat-driven on/off operation and the wide range of particulate properties. Basic tests are made in the laboratory, which support the development of the industry.