Abstract:
A cooling system is described for the continuous cooling of sheet metal strip. The cooling system is installed downstream of a continuous oven which is drying a coating applied to the sheet metal. The cooling system is provided with means for blowing cooling air onto the sheet metal strip. The cooling system comprises -for at least part of the means for blowing cooling air onto the sheet metal strip - means for increasing the temperature of the cooling air prior to blowing the cooling air onto the sheet metal. A method is disclosed for using such cooling systems, e.g. for cooling coatings comprising magnesium oxide that are applied on grain-oriented electrical steel.
Abstract:
A radiant burner (1) comprises a body (2) defining a premixing space (9) and a combustion space (10), the premixing space being separated from the combustion space by a radiant burner element (5) having its burner part (11) at the side of the combustion space, wherein the burner part's emissivity and/or conductivity and/or temperature resistance is not equal at each location of it while the gas permeability is substantially equal at each location of it. At least one location has a different value of emissivity and/or conductivity and/or temperature resistance than the radiant burner element base material.
Abstract:
The present invention relates to a gas fired infrared radiation emitter comprising a burner plate (140) acting as combustion surface and a radiant screen (160) positioned at the combustion side of the perforated tiles. The radiant screen is embossed (180) proving locally different distances between th burner plate and the radiant screen. The result is a higher performance of the gas fired infrared radiation emitter.
Abstract:
A drying installation (1)and method for drying of products (3). More in particular, the invention relates to a drying installation (1) and a method for drying sludge or mud, as e.g. the drying of wastewater and industrial sludge possibly contaminated with toxic or corrosive components.The dryer installation (1) comprises infrared emitters (5) which are protected and/or insulated from the evaporation products (7) exiting the drying product (3).
Abstract:
The invention discloses a continuous curing or drying installation for coated sheet metal strip. The installation comprises a continuous curing or drying oven, and downstream of it a cooling system. The cooling system comprises a number of consecutive cooling chambers along the direction of movement of the sheet metal strip. The cooling system comprises at least one fan. At least one of said at least one fans is provided for extracting air from in one cooling chamber, preferably from at the sheet metal strip, and for blowing the extracted air back onto the sheet metal strip in another cooling chamber than where the air has been extracted.