Hot metal pre-treatment plants

Primary products
SMS group hot metal
pre-treatment (HMP) plants -
the first step

What makes all the difference to steel production in BOF shops is the hot metal quality. That's why the first step in a successful steel production line is removing unwanted elements from the hot metal with an SMS group HMP plant. We supply tried-and-tested technologies for fast, efficient pre-treatment:
• Deep injection process for removing sulfur (HMD-PI), phosphorus, and silicon
• Mechanical stirring process for removing sulfur (HMD-KR)

HMP-PI plant concepts

SMS group supplies two basic HMP-PI plant concepts that cover all capacity and productivity requirements. You select the optimum plant to suit your specific conditions and targets.

Single HMP plant image

Single HMP plant

  • One treatment position
  • One injection lance system
  • External or integrated deslagging station 
  • Compact design
  • Lower investment cost
  • Standard capacity
Twin HMP plant image

Twin HMP plant

  • Two treatment positions
  • Two injection lance systems
  • Fast cycle times
  • 1 external or 2 integrated deslagging stations 
  • Maximum capacity

Technology

HMPI-PI TECHNOLOGY

Deep injection of powder and gas

Classic hot metal pre-treatment involves injecting one or two metallurgical powders into the pig iron in a carrier gas. The precisely controlled process uses refractory-coated lances.

  • Extremely low sulfur contents 
  • Removal of phosphorus
  • Removal of silicon
  • Short treatment times
  • Cost-effective process control 
  • Smooth injection
SMSgroup Image

Versatile injection technology for lower costs

To extend HMD capability, versatility, and flexibility, co-injection technology can feature different hardware configurations. They ensure even better application of the required agents.

  • Co-injection of two agents
  • E-CO-injection of three agents for better cost-effectiveness
  • TWINJECTION®, Two separate injection lines through one lance for co-injection and extremely fast treatment
Versatile injection technology chart

HMP-KR TECHNOLOGY

Mechanical stirring – a practical alternative

Commonly used injection agents such as calcium carbide or magnesium are often in short supply. That's why we developed an alternative technology.

It means you can use cheap desulfurization agents, also for steel desulfurization. Instead of injection lances, a rotating impeller mixes the hot metal and desulfurization agents.
  

  • Extremely low sulfur contents
  • Cheap desulfurization agents
  • High efficiency
  • Less flux consumption than torpedo injection
SMSgroup Image

Selected References

ILVA Taranto, Italy

Type

280 / 300 t HMP-Pi plant

Startup

2016

Highlights

Two single stations for deep co-injection of lime and magnesium for HMD

Shop

BOF shop for flat products

Tata Steel Jamshedpur, India

Type

150 t HMP-Pi plant

Startup

2012

Highlights

Twin station with two sets of injection systems for deep co-injection of carbide and magnesium for HMD

Shop

BOF shop for flat products

JSW Toranagallu, India

Type

95 t HMP-Pi plant

Startup

2014

Highlights

Twin station with two sets of injection systems for deep co-injection of lime and magnesium for HMD

Shop

EAF shop for long products

Tata Steel Scunthorpe, UK

Type

300 t HMP_pi plant

Startup

2008

Highlights

Twin station with two sets of injection systems for deep Twinjection® of lime and magnesium for HMD

Shop

EAF shop for long products

Downloads

Twinjection Hot Metal Desulphurisation
Download
Tailored solutions for hot metal pretreatment facilities
Download

Contact

SMSgroup Schlüter, Jochen

Jochen Schlüter

SMS Mevac GmbH
Sales
Bamlerstraße 3a
45141 Essen
Germany

Phone : +49 201 6323 120
Fax : +49 201 6323 220

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