STEEL FACTORY GAS HEAT EXCHANGER

2020-05-11

Sintering refers to heating iron ore powder or powder compact to a temperature lower than the melting point so to produce a certain amount of liquid phase, which interacts with un-melted ore particles and forms a bonded and sintered body with higher strength, thereby obtaining products required. However, flue gas treatment of most sintering machines remains a concern where a great amount of water vapor and heat is wasted and emitted to the atmosphere.

Jiema Heat Exchanger Workshop

Jiema heat exchange equipment

Jiema participates in steel company's 450-square-meter sintering machine flue gas plume treatment project, providing independently designed and developed heat exchange equipment to effectively solve the problem of gas whitening, and combining with the comprehensive treatment of denitrification and desulfurization systems to eliminate secondary pollution. It help to save resources and economic costs.

Steel Industry Waste Gas Heat Exchanger5

We adopts MGGH+ condensation technology, which uses the waste heat of the flue gas (160°C -180°C) before desulfurization to recover the waste heat, heat the process circulating water, reduce the enthalpy of the flue gas entering the desulfurization tower, and achieve the purpose of lowering the outlet temperature of the desulfurization tower and reducing water evaporation.

The final outlet temperature of the desulfurization tower is 52°C-55°C, which carries a large amount of water vapor, smoke particles, and crystalline salt particles. In order to further reduce water vapor and pollutant emissions, a flue gas condenser and a demister are added to further purify the smoke.

heat exchanger onsite1 heat exchanger onsite2 heat exchanger onsite3 heat exchanger onsite4 heat exchanger onsite5

Eventually, condensed flue gas is about 42°C-45°C. In order to achieve the purpose of eliminating whitening, the flue gas needs to be reheated. The reheating uses the process circulating water to achieve no whitening throughout the year. At the same time, the energy consumption of subsequent installation of denitrification systems is reduced through waste heat recovery and utilization.

Next: HEAT EXCHANGERS TO SLUDGE TREATMENT

Ms. Abby

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jmheatexchanger@163.com

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