Investigation of Water Droplet Impingement Under Conditions of the Secondary Cooling Zone of a Continuous Slab Caster

2019 ◽  
Author(s):  
C. Weiß ◽  
S. Bernhard ◽  
M. Ilie ◽  
L. Preuler ◽  
C. Peyha
Keyword(s):  
Water Droplet ◽  
Cooling Zone ◽  
Secondary Cooling ◽  
Slab Caster ◽  
Droplet Impingement ◽  
Continuous Slab Caster ◽  
Secondary Cooling Zone ◽  
Continuous Slab

scholarly journals Height of Water Pool in the Roll Nip of Secondary Cooling Zone in Continuous Slab Caster: Application of Open Channel Hydraulics

2021 ◽  
Author(s):  
Somayeh Khani ◽  
Heinz Palkowski ◽  
Klaus Schwerdtfeger
Keyword(s):  
Continuous Casting ◽  
Open Channel ◽  
Cooling Zone ◽  
Secondary Cooling ◽  
Water Pool ◽  
Slab Caster ◽  
Secondary Cooling Zone ◽  
Continuous Slab ◽  
Slab Casting ◽  
Channel Hydraulics

AbstractIn continuous casting of steel, the strand is cooled in the upper part of the secondary cooling zone with water sprayed by nozzles towards the strand surface. The water accumulates in the nip of the lower roll of a roll pair, forming a water pool which then drains off towards the ends of the roll. In the present work, open channel hydraulics was applied for computation of the water pool height in the nip between roll and strand in continuous slab casting. The differential equation describing the change of pool height for the spatially varied flow with increasing discharge was solved with the Runge–Kutta technique using as boundary condition the pool height at the end of the nip. The effects of the Manning friction factor n and the energy coefficient α were determined in sets of computation. It was shown that the hydraulic theory could predict water profiles in the nip of continuous casting rolls to a good approximation.

Modernizing the secondary cooling system on continuous slab caster No. 2

Metallurgist ◽  
2010 ◽  
Vol 54 (1-2) ◽  
pp. 91-92
Author(s):  
E. V. Yakushev ◽  
V. V. Zyryanov ◽  
E. M. Alekseev ◽  
S. A. Kulagin ◽  
O. N. Morozov ◽  
...  
Keyword(s):  
Cooling System ◽  
Secondary Cooling ◽  
Slab Caster ◽  
Continuous Slab Caster ◽  
Continuous Slab

Modernization of the secondary cooling system of a continuous slab caster at ural steel

Metallurgist ◽  
2011 ◽  
Vol 55 (1-2) ◽  
pp. 93-96
Author(s):  
A. V. Kuklev ◽  
V. V. Tinyakov ◽  
A. M. Longinov ◽  
S. E. Enzel ◽  
E. V. Yakushev ◽  
...  
Keyword(s):  
Cooling System ◽  
Secondary Cooling ◽  
Slab Caster ◽  
Continuous Slab Caster ◽  
Continuous Slab

Rebuilding the secondary cooling system on the continuous slab caster at the Kamastal’ Metallurgical Plant

Metallurgist ◽  
2007 ◽  
Vol 51 (11-12) ◽  
pp. 612-616
Author(s):  
A. V. Kuklev ◽  
V. V. Tinyakov ◽  
Yu. M. Aizin ◽  
G. V. Sgibnev ◽  
A. K. Izhik ◽  
...  
Keyword(s):  
Metallurgical Plant ◽  
Cooling System ◽  
Secondary Cooling ◽  
Slab Caster ◽  
Continuous Slab Caster ◽  
Continuous Slab

scholarly journals Comparison of Optimization-Regulation Algorithms for Secondary Cooling in Continuous Steel Casting

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 237
Author(s):  
Michal Brezina ◽  
Tomas Mauder ◽  
Lubomir Klimes ◽  
Josef Stetina
Keyword(s):  
Convergence Rate ◽  
Water Flow ◽  
Steel Casting ◽  
Casting Process ◽  
Continuous Steel Casting ◽  
Continuous Steel ◽  
Cooling Zone ◽  
Secondary Cooling ◽  
Flow Rates ◽  
Secondary Cooling Zone

The paper presents the comparison of optimization-regulation algorithms applied to the secondary cooling zone in continuous steel casting where the semi-product withdraws most of its thermal energy. In steel production, requirements towards obtaining defect-free semi-products are increasing day-by-day and the products, which would satisfy requirements of the consumers a few decades ago, are now far below the minimum required quality. To fulfill the quality demands towards minimum occurrence of defects in secondary cooling as possible, some regulation in the casting process is needed. The main concept of this paper is to analyze and compare the most known metaheuristic optimization approaches applied to the continuous steel casting process. Heat transfer and solidification phenomena are solved by using a fast 2.5D slice numerical model. The objective function is set to minimize the surface temperature differences in secondary cooling zones between calculated and targeted surface temperatures by suitable water flow rates through cooling nozzles. Obtained optimization results are discussed and the most suitable algorithm for this type of optimization problem is identified. Temperature deviations and cooling water flow rates in the secondary cooling zone, together with convergence rate and operation times needed to reach the stop criterium for each optimization approach, are analyzed and compared to target casting conditions based on a required temperature distribution of the strand. The paper also contains a brief description of applied heuristic algorithms. Some of the algorithms exhibited faster convergence rate than others, but the optimal solution was reached in every optimization run by only one algorithm.

Water-Modeling Study of the Surface Disturbances in Continuous Slab Caster

1994 ◽  
Vol 25 (2) ◽  
pp. 227-233 ◽  
Author(s):  
Dharmendra Gupta ◽  
A. K. Lahiri
Keyword(s):  
Water Modeling ◽  
Slab Caster ◽  
Continuous Slab Caster ◽  
Continuous Slab ◽  
Surface Disturbances ◽  
Modeling Study

Self-aligning support mechanism for continuous caster secondary cooling zone

Metallurgist ◽  
1979 ◽  
Vol 23 (12) ◽  
pp. 847-849
Author(s):  
M. Z. Levin ◽  
N. G. Pirozhenko ◽  
D. A. Dyudkin ◽  
A. M. Kondratyuk ◽  
V. N. Bordyugov
Keyword(s):  
Continuous Caster ◽  
Cooling Zone ◽  
Secondary Cooling ◽  
Support Mechanism ◽  
Secondary Cooling Zone
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