Importance

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Abstract

For dislodging of particulate material from precipitator plates, high voltage electrodes, hoppers, conveyance ductwork, etc., an electro-mechanical rapper module is removably combined with an electronic controller module in a single cylindrical unit that can be controlled and operated independently of any central controller. The rapper is preferably of the type that utilizes a spring-loaded hammer upstroke: being largely independent of gravity it can operate in any orientation. The controller drives the rapper in repetitive bursts at a rate of about 3 impacts per second, and provides selection of impact amplitude, on time and on delay. The unit can be controlled from a remote switch closure, and can be actuated manually by a pushbutton test switch on a control panel inside a top cover. The controller and rapper can be readily separated by removing a clamp, and can be operated as separate electrically-connected units.

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First Claim