Method for checking a knocking device

摘要

A method is provided for checking a knocking device which is intended for cleaning a surface of a heat exchanger element arranged on an inside of a boiler housing of a garbage incineration plant. The knocking device has a knocking ram guided through a wall of the boiler housing and movable in a direction toward the inside of the boiler. The heat exchanger element is deflected out of its position of rest into a deflection position by the knocking ram, and the force required for deflecting the heat exchanger element and/or the attenuation behavior of the heat exchanger element released after deflection are/is determined.