Patent ID: 7328598

Claim:
Device for cooling rolling stock within the cooling line of a rolling mill, especially a hot strip rolling mill, in which stationary water spray devices are installed below the rolling stock between rollers ( 10 ) of a roller table ( 1 ), and spray bars ( 3 ) held on support levers ( 16 ) are installed above the rolling stock, wherein the support levers ( 16 ) are supported by a tubular, rotationally driven and water-fed articulated tube ( 15 ) that extends parallel to the longitudinal axis of the roller table ( 1 ), with a central water feed pipe and an automatic control device with associated on-off valves for switching the cooling water on and off, wherein the rollers ( 10 ) of the roller table ( 1 ) are arranged with the closest possible spacing; wherein the lower cooling bars ( 2 ) are arranged below the spaces remaining between the rollers ( 10 ); wherein spray tubes ( 13 ) of the cooling bars ( 2 ) fit into these spaces; and the rollers ( 10 ) of the roller table ( 1 ) have elongated pins ( 11 ) of small diameter so as to permit cooling water which cannot run off through the spacing between the rollers to run off over the small diameter pins, wherein the cooling bars ( 2 ) have a pear-shaped cross section, whose neck is directed towards the spaces remaining between the rollers ( 10 ) and is furnished with the spray tubes ( 13 ), wherein the neck of the pear-shaped cross section of the cooling bars ( 2 ) is terminated by a retaining strip ( 23 ), which is fitted with spray tubes ( 13 ) and advantageously is interchangeable, wherein the free end of each spray tube ( 13 ) is fitted with a nozzle ( 24 ).