The need of cleaning surfaces.

In every process of combustion, especially with solid or liquid fuels, there is production of unburnt deposits and slags which reduce the efficiency of heat transfer and create problems of firing and corrosion. Steam generators, refinery heaters, furnaces, heat recovery units, boilers in general, therefore have to eliminate soot deposits and slags from their heat transfer surfaces. The own task of soot blowers is the periodical re- establishment of the best working conditions, removing deposits which, remaining on tube bundles, reduce heat transfer, and consequently efficiency, in a very massive way.

Working at regular time intervals, soot blowers, rightly arranged, throw a pressurized fluid - normally superheated steam - from two or more nozzles, brush away heaped deposits. Heat transfer surfaces, so cleaned, remain efficient and keep the original heat transfer coefficient. Fuel saving obtained utilizing soot blowers may reach average values from 5% till 20%. Heat transfer loss grows more than proportionally with the thickness of deposits (*). It is then evident that the use of soot blowers besides protecting plant from corrosion extending in such a way its service life, it is an economical advantage permitting a remarkable energy saving.

Furthermore, deposits increase pressure drops and can force the stop of plant for unplanned maintenance and cleaning, with huge economical damages.

Soot blowers for cleaning plants.

• for steam generators

• for refinery heaters

• for heat recovery units

• equipped with sequential control panel board

Longgstroke retractable lance soot blowers.

• Model LA 251 max. lance stroke: up to mm. 5000

• Model LA 351 max. lance stroke: up to mm.10000

Are normally applied in gas high temperature zones. Retractable lances work with a rotary & translatory movement and are equipped with No.2 high efficiency venturi nozzles, which realize helicoidal massive steam jets.

Sequence control panel boards.

Our cleaning systems can be provided with sequence control panel boards PLC BASED. Electric control panel boards are built both in SAFE or explosion proof construction.