LINE II TWENTY ROLLS REVERSIBLE SENDZIMIR COLD ROLLING MILL

Transcription

1 ES LINE II TWENTY ROLLS REVERSIBLE SENDZIMIR COLD ROLLING MILL intended for cold rolling of low carbon, high carbon and stainless steel as well as hard aluminum alloy Waterbury Farrell (USA) Model ZR 22B 52 Serial Number Max. strip width 1320 mm Max. strip inlet thickness 5 mm Hot Rolled Strip (HRS) Min. final strip thickness 0,2 mm Pinch rolls diameter 406 mm Strip speed through the mill 0 / 300 / 762 m/min. Min./Max. winder s tension / kg max. total strip thickness reduction on low carbon steel strip 90% (to be achieved in 5 passes) Max. coil weight 24 t Two winders with strip gripers Coil outside diameter (OD) 1950 mm Coil inside diameter (ID) 610 mm Rolls diameter (two pieces) 63,5 mm (non-driven) Four 1 st support rolls diameter 101,6 mm (non-driven) Rolls Six 2 nd support rolls diameter 173 mm (non-driven) Support rolls bearings 48 Support rolls bearing diameter 300 mm Support rolls bearing width 172 mm

2 Payoff TWENTY ROLLS REVERSIBLE SENDZIMIR COLD ROLLING MILL Mill s Motor (General Electric) Strip and work rolls cooling and lubrication Max. coil weight Coil inside diameter Coil outside diameter Payoff motor (only for first rolling pass) Mill winder motor (left) Mill winder motor (right) Mill driven rolls motor Water-Oil emulsion capacity Emulsion storage capacity Bearings lubrication Hydraulic System 24 t 610 mm mm 1 x 500 kw, 400 V, 200/600 r/min. 2 x kw, 200/600 r/min. 2 x kw, 200/600 r/min. 2 x kw, 0/1000/2500 r/min l/min l Oil/fog 12,55 kw 2 M-Pumps á 74 bar; 75,7 l/min. Hydraulic Control Screw Down Device kg (during operation) for thicknesses up to 2 mm 2 LFE non-contact measuring units Automatic strip thickness control for thicknesses over 2 mm 2 ESP contact measuring units (ESP) for strip speed measuring 2 Tachometers Process digital computer PDP 8M Nominal Mill Capacity t/a Note: In case of lower average reduction, bigger coils (24t), thinner thicknesses and strong management this mill can produce t/a of low carbon CRS.

3 Major components: 1. Hydraulic Coil Car (Entry) Waterbury Farrel (USA) Note: 2. Payoff (Entry) Waterbury Farrel (USA) Note: This unit mainly consists of 1. Payoff, 2. Payoff motor, 3. Guiding unit, 4. Reducer, 5. Hydraulic motor, 6. Interconnection

4 3. Five Rolls Strip Leveler Waterbury Farrel (USA) Note: This unit consists of a reducer and five rolls 4. Sendzimir Reversible 20-Rolls Mill Housing Waterbury Farrel (USA) Type Reversible ZR B22 52`` (1320 mm)

5 Mill consists of: 1. Treading rolls hydro motor 2. 2 exit coil cars 3. Mill reducer 4. Carrier gear step motor 5. 2 tacho generators 6. 2 emulsion skinners 7. 2 right winder s motors (1.840 kw, 200/600 r/min.) 8. 2 left winder s motors (1.840 kw, 200/600 r/min.) 9. 4 mills driven rolls motor (2 x kw, 0/1000/2500 r/min.) winder pyramid winder heads (with special strip griper) winder reducers 13. Mill housing 14. All mill auxiliary equipment pairs of mill gears for mill reducer (above: mill housing) (above: back side of the mill)

6 (above: motor room equipment) 5. Ventilators for oil fog removal Waterbury Farrel (USA) Note: This unit consists of 2 electro-motors and 2 ventilators; motor room ventilation system included

7 6. Motor Bearings and Reducers Lubrication Unit Waterbury Farrel (USA) Note: 7. Hydraulic Oil Accumulators Domestic YoM 1985 Note:

8 8. Hydraulic Units of the Mill (left and right) Waterbury Farrel / Double A (USA) Note: consisting of 3 hydraulic units (work pressure 55 bar), each with two pumps 9. Hydraulic Distributor Waterbury Farrel / Double A (USA)

9 10. Hydraulic Component Panels Waterbury Farrel / Double A (USA) Note: Consists of four panels Pull Leveler Rolls Cylinder for sensor head Leveler Payoff

10 11. Emulsion Pumps Waterbury Farrel / Double A (USA) Note: for clean and dirty emulsion incl. cooler and hydro-motor 12. Emulsion Tank (Dirty) Waterbury Farrel / Double A (USA) Note: for dirty emulsion, climatized

11 13. Storage Tank (Cellar) Creina Kranj (Slovenia) YoM 1987 Note: for dirty emulsion evacuation 14. Oil Tank Local build Capacity: 50mᶟ Note: Oil emulsion serves for rolls and strip cooling and lubrication during cold rolling

12 15. Emulsion Cooler Unknown YoM 1987 Note: 16. Electro-magnetic Emulsion Filter Unknown YoM 1987 Note: for emulsion cleaning incl. skinner for emulsion s surface foam and metallic particle removal

13 17. Emulsion Filter Waterbury Farrel (USA) Note: 18. Emulsion Tank (Clean) Domestic Capacity: 60mᶟ

14 19. Used Rolls First intermediate rolls Second intemediate rolls Various 6 á Φ 100 x mm 52 á Φ 170 x mm 20. Transformers Manufact urer General Electric (USA) Operated with Oil Electricity supply DC 700 V Apparent power kva Note: Six transformers available