Fluxed Sinter through Micro-Pelletization

1.

Title of Product/Design/Equipment

Fluxed Sinter through Micro-Pelletization

Fluxed Sinter through Micro-Pelletization

2.

IPR Status

Patent/Abroad IPR Details

Patent Filed

3.

Application/Uses

Iron and steel making

4.

Salient Technical Features including Competing Features

A fluxed sinter using 100% ultra-fine waste oxide material generated in steel plant viz. LD sludge, BF flue dust and lime fines (10 to 55%) through micro-pelletization for their recycling. The salient features of the process are:

Micro-pellets are hard (CCS: ~10 kg/pellet) to withstand cold handling. Sintering is possible neither using any external heat nor any coke breeze and the waste material itself is the heat source. The produced sinter is suitable for using in both iron and steel making processes.

5.

Level/Scale of Development

10 kg/batch

6.

Environmental Considerations

No harmful/hazardous effect on environment

7.

Status of Commercialization

Ready for commercialization

8.

Major Raw Materials to be Utilized

LD Sludge, BF-Blue Dust and Lime Fines.

9.

Major Plant Equipment and Machinery Required

Pelletizer, C02 treatment facility, Sinter Plant, charging system of micro-pellets

10.

Techno-Economics

Capital cost for the Pelletizer, C02 treatment facility depends upon amount of up scaling. Conventional sinter strand will be used. Raw materials used are wastes.

11.

Technology Package

(a) Process-Know-how, (b) Details of equipment & (c) Quality Assurance Methods. Assistance in up-scaling and setting up the plant on separate terms.

Chemical requirement cost is about Rs.30.12 against product cost of about Rs.1.25.12 per ton of iron oxide production.