US 12,330,200 B2
Distributor tube for cooling metal strips
Nikola Jacimovic, Udine (IT)
Assigned to DANIELI & C. OFFICINE MECCANICHE S.P.A., Buttrio (IT)
Appl. No. 17/754,872
Filed by DANIELI & C. OFFICINE MECCANICHE S.P.A., Buttrio (IT)
PCT Filed Oct. 16, 2020, PCT No. PCT/IB2020/059744
§ 371(c)(1), (2) Date Apr. 14, 2022,
PCT Pub. No. WO2021/074870, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 102019000019181 (IT), filed on Oct. 17, 2019.
Prior Publication US 2023/0256490 A1, Aug. 17, 2023
Int. Cl. B21B 45/02 (2006.01)
CPC B21B 45/0218 (2013.01) [B21B 45/0233 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A distributor tube for cooling metal, leaving a hot-rolling mill comprising:
(a) along a longitudinal extension of said distributor tube, a plurality of outlet openings through which a cooling fluid can be ejected;
(b) an inlet located at one end of said distributor tube for said cooling fluid and a closure of said distributor tube at another end, and
(c) a connection for connecting a source of cooling fluid and feeding said distributor tube with said cooling fluid;
wherein at least on an inlet side of said distributor tube there is a zone of change in a diameter of the distributor tube, which varies from a sector with a smaller diameter, followed in a direction of flow by a sector with a larger diameter,
wherein upstream of said plurality of outlet openings there is an orifice in an area of a flow section,
wherein the orifice is a plate comprising a plurality of holes.