Regulator for the cooling air inflow of a cooling grate

Details Regulator for the cooling air inflow of a cooling grate Regulator for the cooling air inflow of a cooling grate

F - Mech Eng,Light,Heat,Weapons

27

D

F27D 15/02 (2006.01) F16K 7/07 (2006.01) F27D 19/00 (2006.01) F28F 27/02 (2006.01)

Patent

CA 2587633

The aim of the invention is to provide, in particular, an autonomous cooling air regulator for a cooling grate that cools hot bulk material, such as e.g. cement klinker, said regulator having a simple construction and being used for rigid cooling grate sections and moving cooling grate systems. To achieve this, in the regulator housing, which is located below the cooling grate, moves with the latter and comprises a cladding (11) consisting of a solid material, a sleeve (12), which is for example cylindrical and consists of elastic material, is fixed coaxially in the housing and acts as an actuating organ. The pressure differential inside and outside the sleeve (12) and the deformation resistance of said sleeve are set in such a way that the sleeve (12) can be deformed, in particular autonomously, from its maximum flow cross- section to its minimal flow cross-section, thus regulating the volumetric flow of the cooling air stream (10) from below into the cooling grate.

L'invention vise à créer, pour un dispositif de refroidissement à grille destiné à refroidir de la matière en vrac chaude comme, par ex., du clinker, un dispositif de régulation d'air de refroidissement, notamment à fonctionnement automatique, de conception simple et d'utilisation aisée, à la fois pour des zones fixes de grille de refroidissement et pour des zones mobiles de grille de refroidissement ou pour des systèmes mobiles de grille de refroidissement. A cet effet, dans le carter du régulateur placé sous la grille de refroidissement dont il accompagne le mouvement, ce carter étant pourvu d'une enveloppe (11) en matériau solide, un manchon tubulaire (12) coaxial, par ex. cylindrique, en matière élastique est tendu en tant qu'organe de réglage. La différence de pression à l'intérieur et à l'extérieur de ce manchon tubulaire (12) et sa résistance à la déformation sont réglées de telle sorte que ledit manchon tubulaire (12) se déforme automatiquement entre sa section transversale maximale et minimale et régule ainsi le débit volumétrique du flux d'air de refroidissement (10) pénétrant par le bas dans la grille de refroidissement.

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