Main / Our competencies / Ferrous and nonferrous metallurgy / Out-of-furnace steel processing units.

Out-of-furnace
steel processing units.

Out-of-furnace
steel processing units.

Ladle-Furnace

Due to the individual design, the ladle-furnace units are suitable for even the most stringent area requirements. The ladle-furnace units correspond not only to plants for the production of special steels with a long and intensive processing, but also to converter workshops with a high-performance, short-term cycle. Particular attention is paid to the requirements for ease of maintenance to ensure long and trouble-free operation.

Options:

 

  • Single or double stand (with a rotary portal).
  • Volume of melting is from 6 to 300 tons.
  • Various arch designs are proposed (pipe-to-pipe, with a flat inner surface).
  • Standard or suspended portal system.
  • Bucket trolley with optional tilting pan and weighing device.
  • Construction with gas or electromagnetic stirring.
  • For metallurgical plants, foundries and ferroalloy plants.

 

 

Distinctive features of the design of the unit ladle-furnace:

 

  • The furnace of the furnace with a flat inner surface (steel plates or copper).
  • The quick-detachable directing blocks.
  • Automatic gas connection system.
  • Electrode control system.
  • Easy access and maintenance.
  • All auxiliary equipment.

 

Degasser VD / VOD

In the VD system, the bucket is located in the vacuum chamber and is sealed with a vacuum cap. The bucket should be equipped with a porous stopper for mixing with an inert gas. Vacuum is created using steam or mechanical vacuum pumps. During vacuum processing, carbon, oxygen, nitrogen and hydrogen may decrease at different stages depending on smelting conditions. In addition, the VD system can be equipped with vacuum hoppers for alloying materials so that during the evacuation the composition can be adjusted. The advantages of this system are good homogenization and higher yield of suitable products.

For VOD processing, it is possible to take advantage of the fact that under vacuum conditions, decarburization with oxygen occurs prior to the oxidation of chromium and, thus, low carbon content is achieved with a small loss of chromium. When using this system, an oxygen lance is installed over the vacuum cover.

Most production programs require a combination of VD and VOD operations. To this end, mechanical equipment was developed for both operations.

 

 

In general, VD / VOD processing provides the following benefits:

 

  • increase furnace productivity
  • use of cheaper materials with high carbon content (chrome filling)
  • reduction of production costs
  • quality improvement
  • the ability to produce ultra low carbon grades (ELC) with minimal chromium loss
  • achieving tighter tolerances for chemical composition
  • more low chromium waste

 

Options

 

  • One or dual working stand
  • Melting weight up to 350 tons
  • Vacuum pumps
  • Dry mechanical vacuum pumps
  • Doping in vacuum conditions

 

Distinctive design features VD / VOD

 

  • VOD bucket cover with a flat inner surface (steel plates or copper)
  • Automatic gas coupling system (TBR)
  • Wire feeder
  • All accessories included