Loading patent…
AssigneeRobota GmbH Feuerungs- und Schornsteinbau
InventorsReinhold Pohl, Manfred Dresselmann, Hans-Wilhelm Hessmann
Estimating the term…
An arrangement for the demolition of smokestacks includes a demolition tool for successively demolishing the smokestack shaft. A work platform is suspended from the smokestack wall by suspension devices distributed over the circumference of the work platform. Each suspension device includes at least one vertically guided lowering piston which can be locked in different vertical positions. A suspension arm is mounted at the upper end of each piston and can be swung inwardly and outwardly. In the outwardly swung position, the suspension arm engages over the smokestack wall. A mechanical shovel with the demolition tool works on the work platform. The demolition is carried out in the area of a suspension arm which is swung inwardly. After the demolition work has been carried out, the suspension arm is again moved to the outwardly swung position. This is repeated with all suspension arms until the work platform can be lowered by the stroke of the lowering piston and a new demolition cycle can begin.
In an arrangement for the demolition of a smokestack, the smokestack having a wall forming a shaft, a smokestack head and a smokestack base, the arrangement including a demolition tool for successively demolishing the smokestack shaft from the head to the base of the smokestack, the improvement comprising a work platform to be placed into the smokestack shaft at the head thereof, the work platform having a circumference, the work platform including a plurality of suspension devices which are distributed over the circumference of the work platform, each suspension device including at least one lowering piston, means for vertically guiding and locking the lowering piston, the lowering piston having an upper end, the suspension device further including a suspension arm, the suspension arm being mounted at the upper end of the lowering piston so as to be swingable between an inwardly swung position and an outwardly swung position, the suspension arm engaging over the smokestack wall in the outwardly swung position.
Dependencies are inferred from the claim text.