Hot briquetting is carried out at feedstock temperatures ranging between 250 and 800°C. Briquette machines yielding individual briquette volumes between 20 and 150 ccm are typically used in hot briquetting.
The hot briquetting process is employed either for quality or process technological reasons and necessitates comprehensive engineering expertise, experience in the manufacture of machinery, profound process-oriented knowledge as well as highly qualified commissioning personnel. Hot briquetting plants have been used for the processing of sponge iron, lead/zinc waste, metallurgical dust, magnesium oxide and coal.
Examples for typical applications of hot briquetting are:
- briquetting of sponge iron from different direct reduction processes to produce HBI ( Hot Briquetted Iron ), an internationally traded premium source of iron units for the steel industry,
- briquetting of metallurgical wastes to enable an environment-appropriate recycling
Besides the briquetting machine, Köppern´s scope of supply for hot-briquetting systems also includes e.g.
- string separator
- bucket elevator
- cooling systems for the product, etc.
Köppern´s range of services is completed by extensive specifically developed test programs and systems for the design of machines and plants.