Energy saving technology and equipment for preparation of oxidized pellets

Haomai company has been engaged in the research and development of energy-saving technology and equipment related to the preparation of oxidized pellets for many years, including key processes and devices such as iron concentrate drying and rotary kiln calcination. The technology is advanced, practical, environmentally friendly and energy-saving, with high pellet quality and wide application range of raw materials.

1、 Review on Preparation of oxidized pellets

Haomai drying company has been researching and developing energy-saving technology and equipment related to the preparation of oxidized pellets for many years, including key processes and devices such as iron concentrate drying and rotary kiln calcination. Through reasonable air-cooled cooling process, the waste heat of the system can be fully utilized for drying, so as to realize efficient energy-saving production. At the same time, the company also has supporting desulfurization, dust removal process and equipment to meet the needs of clean production. A complete set of technology and equipment for grate kiln oxidized pellet preparation with domestic level has been formed.

Besides magnetite, hematite and limonite, sulfuric acid slag and steelmaking sludge can also be used as raw materials for pellet production.

2、 Process characteristics

1. The hot flue gas from rotary kiln and annular cooler is used for blast drying and exhaust drying on the grate, and the length of each section can be adjusted according to the performance characteristics of concentrate;

2. The pellet is continuously rolling in the rotary kiln, and all parts are heated evenly, and decomposition, oxidation, desulfurization and consolidation reactions occur at the same time, so that the pellet has sufficient mechanical strength and uniform quality;

3. The ring cooler cools the roasted pellets to the temperature that the belt conveyor can bear by air cooling, so as to store and transport.

3、 Customer case

Jiangsu Rongxin Weiye