| Additional infortmation: | Director of Ore-Mining and Press-Forging Equipment Production Unit | Bobrov Valentin Grigoryevich | phone: +38 (0626)47-85-53 | |
| Chief Engineer of Ore-Mining and Press-Forging Equipment Production Unit | Protynyak Igor Stefanovich | phone: +38 (0626)47-88-49 | ||
| Chief Design Engineer of Ore-Mining and Press-Forging Equipment Production Unit | Lavrenko Yuriy Vasilyevich | phone: +38 (0626)47-84-50 | ||
| kgro@nkmz.donetsk.ua fax: +38 (0626) 47-15-49 |
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Feed system of alloyed and slag-forming materials is intended for accumulation, storage, portioned input of materials, lifting by bucket belt conveyor and charging to the receiving hopper of intermediate hoppers system with subsequent feed of materials to a receiving cone of furnace water-cooled roof or to a steel ladle while metal tapping from the furnace. |
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Advatages:
• Provides automated, semi-automated and manual feed of necessary material volume preset by the operator to electric arc furnace or to the ladle.
| Parameters | Norm |
|---|---|
| Size of material being transported:: | |
| Alloying addition, mm | 5…50 |
| Slag-forming addition, mm | 5…50 |
| Pour density, t/m3 | 0,3…3,0 |
| Speed of material feed, kg/min | 600 |
| Vibration feeder with electromagnetic drive | 19 |
| Max production capacity, m3/h | 50 |
| Horizontal reversing conveyor, pcs. | 1 |
| Conveyor length, m | 12256 |
| Belt width, mm | 800 |
| Belt speed, m/s | 0,34 |
| Capacity, t/h | 25…75 |
| Bucket belt conveyor, pcs. | 1 |
| Belt width, mm | 1000 |
| Intermediate hoppers system with pneumatic slide gates, bypasses and rotary chutes | 1 |
Steel teeming ladle car is intended for receipt of steel ladle in the raw-material bay and its subsequent transfer to the area under tapping hole of electric arc furnace.
Advantages:
• Provides receipt of metal, alloying elements and deoxidizing agents to the steel ladle with simultaneous weighing of steel being tapped;
• Enables to move a steel ladle from under the furnace to a pouring bay for transfer by the crane for treatment (pouring);
• Enables to carry out argon blow of metal in a steel ladle with a slide gate while metal tapping;
• Provides hitch transfer of steel teeming ladle car in emergency situations.
| Parameters | Norm |
|---|---|
| Load-carrying capacity, t | 125 |
| Travel speed, m/min | 25 |
| Running wheel diameter, mm | 800 |
| Drive of travel | |
| - motor reducer, pcs. | 4 |
| -power, êWt | 7,5 |
Slag-ladle transfer car is installed on the railway track and is intended for the following:
• Receipt of a cinder cooler or a slag pot in the furnace bay as well as for its transfer to the area under the furnace and installation from the side of the working door;
• Receipt of slag being skimming off from the furnace to a cinder cooler or a slag pot;
• Transfer of a cinder cooler or a slag pot from under the furnace to the side of a tapping hole for their transfer by the crane to the railway platform.
Advantages:
• Mechanism for slag-ladle transfer car has two drives.
• In emergency situations when one of the drives is broken down the slag-ladle transfer car can be operated with one drive as well.
| Parameter | Norm |
|---|---|
| Load-carrying capacity, t | 40 |
| Travel speed, m/min | 25 |
| Drive of travel | |
| - motor reducer, pcs. | 2 |
| -power, êWt | 7,5 |