Frequent Questions and Answers

No – Unless fins are severely corroded. If they are generally in good order, and made from ca 1 to 2mm steel plate, they can theoretically take a distributed load of 500 kg over 24 CM(2). Our robot weighs 25kg.
Typically, it can apply pressures of between 500 bar to 4000 bar (60,000 psi), dependent on fouling it needs to remove. The robot cleaning system will operate at 700-850 bar.
We assume 25L/m with a system operating for a typical period of six to seven hours within a 10-hour shift.
The Robot is a vehicle placed on the top row of every convection bank to be cleaned (subject to height clearance between banks). The remotely controlled Robot travels along the length of the bank. The cleaning lance is computer controlled and is of various length dependent on the pitch and depth of bank is positioned, such that it slides down between the tubes, which are generally on a triangular pitch arrangement. This solution allows for cleaning deep between the tube rows. Due to the close proximity of the cleaning head in relation to the fouling between the fins, i.e. 5 to 10mm the pressure easily removes the hardest type of fouling that can be found e.g. refractory like cement, sulphur, and concrete like deposits. No other cleaning system can promise this. The Robot can apply different blast medium e.g. air, steam, chemical, CO2, liquid nitrogen. It even carries an inspection video probe to inspect and prove cleanliness after cleaning for the client’s satisfaction. Again, no other contractor offers this.
The standard Robot weighs approx. 25/Kgs (single lift by a single person) has an overall width of 470 mm x 230 mm high.

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