Particle removal device and method for wet cleaning of a particle removal device

A method for wet-cleaning a particle removal device for separating particles from a process gas flow, with the particle removal device comprising a housing comprising a vertically oriented longitudinal axis, a filter subdividing the housing into a process chamber comprising the particles to be separated and a clean gas chamber receiving a dedusted process gas, a particle inlet arranged on the process chamber and a particle discharge arranged on the process chamber, a clean gas outlet arranged in the clean gas chamber, a clean gas chamber cleaning device arranged in the clean gas chamber and having at least one clean gas chamber cleaning nozzle for wet cleaning of the filter which comprises a filter plane inclined with respect to the longitudinal axis, during the cleaning process, and a bypass device through which a bypass channel passes, wherein the bypass channel comprises a bypass inlet connected to the clean gas chamber and a bypass outlet connected to the process chamber, wherein the bypass device further comprises a bypass channel gate valve that can be selectively positioned in a closed position preventing fluid flow through the bypass channel or in at least one open position allowing fluid flow, the method comprising:

• in the cleaning operation, the clean gas chamber cleaning device outputs a cleaning fluid in the form of a cleaning liquid and the bypass channel gate valve is moved from a closed position into an open position so that the cleaning fluid can flow at least partially through the bypass channel from the clean gas chamber into the process gas chamber.