Pellet-Sinter Composite Agglomerate of Iron Oxide Fines for Use in Blast Furnace

1.

Title of Product/Design/Equipment

Pellet-Sinter Composite Agglomerate of Iron Oxide Fines for Use in Blast Furnace

2.

IPR Status

Patent/Abroad IPR Details

Patent Filed

3.

Application/Uses

Iron and steel making

4.

Salient Technical Features including Competing Features

In Pellet-Sinter Composite Agglomerate, iron oxide pellets are embedded in to the sinter mass. P-SCA for use in blast furnace has been developed with Indian iron ore to utilize the micro-fines in sintering. The salient features of the process are as follows:

It also uses steel plant's waste materials viz. LD sludge, mill scale etc (5-10%) with iron oxide microfines.

The process yields a very good quality sinter even at the lower basicity that is usable in blast furnace.

It increases the fines acceptability (30% above normal) improving permeability and decreases energy consumption (-20%) and flux consumption.

5.

Level/Scale of Development

12 kg / batch

6.

Environmental Considerations

Environment friendly since it reduces Energy consumption

No harmful/hazardous effect on environment

7.

Status of Commercialization

Ready for commercialization

8.

Major Raw Materials to be Utilized

Iron ore fines, LD Sludge, BF-Blue Dust.

9.

Major Plant Equipment and Machinery Required

Pelletizer, Conventional sintering facility, charging system

10.

Techno-Economics

Present sinter strand in steel plant can be used for Up-scaling. Only a pelletizer of suitable capacity with charging facility has to be installed.Raw materials are fines and 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.