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A new technology base and approptiate equipment for carbon-thermal reduction of iron containing technogeny wastes is elaborated in order to utilize these wastes in capacity of part of the EAF charge.

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Technological line of manufacture of a powder wire

The technological line of manufacture of a powder wire is intended for production of a wire in diameter 10-16мм filled from one - to a five-componental mix of powders with the size of fractions to 3mm. The wire is used in metallurgical and foundry manufacture for deoxidation, refinement, high-precision alloying of steels andintroduced intoliquid bath by using of special drive. Wire delivered to the consumer in revolts with high-precision packing. Sizes of the revolts: outer diameter 1300 (1500) mm inner diameter 600 mm, width 600 (800) mm; mass up to 3500 kg.

The wire technology includes following basic operations.
• Unwinding of a steel tape from rolls and formation of an u-shaped profile.
• Filling of a profile with a powder mix.
• A profile tightening, formation and lock closing, sizing reduction of a wire in system of stands.
• Measurement of length, calibration and wire winding on the coil.

Scheme of the line is given in figure.

Figure – Scheme of the powder wire production line.
1- decoiler, 2- workbench, 3- compensator, 4- welding unit, 5- vertical-horizontal stand, 6- pinion stand, 7- non-drive stand, 8, 13 – measuring stand, 9- batch bin, 10 – feeder-bin, 11- mixer, 12 – service bunker, 14 – packer, 15 – coil winder, 16 – coil, 17 – tape width sensor, 18 – tape thickness sensor, 19 – tape filling sensor.
 
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