Descaling device

Abstract

The invention relates to a descaling device which can be operated in an optimal manner with respect to the efficiency, descaling quality, energy and water consumption and is readily available. The aim of the invention is achieved such that the spray nozzles ( 12 ), which are instrumental in descaling the steel material ( 2 ) in the descaling device ( 8 ), are designed as static nozzles and as dynamic or rotating nozzles. The static nozzles form, together with the spray bars, pairs of spray bars ( 13 ) and the dynamic or rotating nozzles form, together with spray units, rows of pairs of spray units ( 23 ).

1 - 18 . (canceled) 
     
     
         19 . A descaling device for a hot steel material deformable along the production line into long and flat products, comprising
 a housing,   a transport plane for the steel material;   spray nozzles arranged vertically above and/or below the transport plane and directed to a surface of the steel material, from which spray nozzles water emerges under high pressure for descaling the surface of the steel material in a controlled and/or regulated manner;   a spray beam arranged below the transport line and a spray beam arranged above the transport line as a spray beam pair or a spray beam module, the spray nozzles being arranged on the spray beams and being constructed as static nozzles and as dynamic or rotating spray nozzles, the spray nozzles being combinable with each other with respect to the controlled and/or regulated emission of spray water.   
     
     
         20 . The descaling device according to  claim 19 , wherein the spray beams are arranged transversely of the transport plane of the steel material and, together with the static spray nozzles form the spray beam pair, the dynamic or rotating spray nozzles being arranged in at least one spray unit arranged above the transport plane and at least one spray unit arranged below the transport plane, the respective spray units arranged above and below the transport plane being mounted to form at least one spray unit row and extend transversely above and below the transport plane of the steel material, wherein the two spray unit rows are arranged so as to be offset opposite each other and form a spray unit row pair. 
     
     
         21 . The descaling device according to  claim 20 , wherein at least one spray beam pair and at least one spray unit row pair form several spray zones in a longitudinal extension. 
     
     
         22 . The descaling device according to  claim 21 , and further comprising means for individually switching the spray zones on and off. 
     
     
         23 . The descaling device according to  claim 21 , wherein several spray beam pairs are arranged behind one another in a transport direction of the steel material. 
     
     
         24 . The descaling device according to  claim 20 , wherein at least one spray unit row pair is arranged following a first and a second spray beam pair in a transport direction of the steel material. 
     
     
         25 . The descaling device according to  claim 20 , wherein at least one spray unit row pair is arranged between a first spray beam pair and a second spray beam pair. 
     
     
         26 . The descaling device according to  claim 20 , wherein several spray unit row pairs are arranged behind one another in a transport direction of the steel material, at least one spray beam pair being assigned to the spray unit row pairs. 
     
     
         27 . The descaling device according to  claim 20 , wherein at least unit row pair is arranged in a transport direction of the steel material and thereafter is arranged at least one spray beam pair. 
     
     
         28 . The descaling device according to  claim 20 , wherein two spray beams are always arranged opposite each other and offset relative to each other to form the spray beam module. 
     
     
         29 . The descaling device according to  claim 28 , wherein each spray beam module is arranged in the housing so as to be slideable transversely of a transport direction of the steel material. 
     
     
         30 . The descaling device according to  claim 28 , wherein the spray beam modules are arranged so as to be replaceable. 
     
     
         31 . The descaling device according to  claim 30 , and further comprising a travel rail arranged in the housing, the respective spray unit rows being arranged on and received by the travel rail as a module. 
     
     
         32 . The descaling device according to  claim 28 , and further comprising a first device and a second device for squeezing off or holding back the spray water, each spray beam module being arranged between the first device and the second device. 
     
     
         33 . The descaling device according to  claim 31 , and further comprising a first device and a second device for squeezing off or holding back the spray water, each spray unit row pair being arranged between the first device and the second device. 
     
     
         34 . A descaling device for hot steel material deformable along a production line into long and flat products, comprising:
 a housing,   a transport plane for the steel material within the descaling device;   spray nozzles arranged vertically above and below the transport plane directed onto a surface of the steel material, from which spray nozzles water emerges under high pressure for descaling the surface of the steel material in a controlled or regulated manner;   a device arranged on an input side and an output side of the housing for squeezing off or holding back the spray water impinging upon the surface of the steel material;   spray beams, the spray nozzles being static nozzles which together with the spray beams form at least one first and second spray beam module; and   another device for squeezing off or holding back the spray water impinging upon the surface of the steel material, the another device being arranged between the first and the second spray beam modules.   
     
     
         35 . A descaling device for hot steel material deformable along a product line into long and flat products, comprising:
 a housing,   a transport plane for the steel material within the descaling device;   spray nozzles arranged vertically above and below the transport plane directed onto a surface of the steel material, from which spray nozzles water emerges under high pressure for descaling the surface of the steel material in a controlled or regulated manner;   a device arranged on an input side and an output side of the housing for squeezing off or holding back the spray water impinging upon the surface of the steel material;   a spray beam, the spray nozzles including static nozzles which together with spray beam form at least one spray beam module, and the spray nozzles including dynamic or rotating nozzles which are arranged in a spray head of a spray unit, wherein several such spray units are arranged as a spray unit row above and below as well as transversely of the transport plane of the steel material and form a spray unit row module; and   another device which for squeezing off or holding back the spray water impinging upon the surface of the steel material, the another device being arranged between the spray beam module and the spray unit row module.   
     
     
         36 . The descaling device according to  claim 19 , wherein the descaling device is arranged in a one-stand or multiple-stand hot rolling train formed as a production line, either following a continuous casting machine or in front of at least one hot rolling stand.