Optimization of Heat Recovery of Sinter Based on Gathering Hoods of Sinter Circular Cooler

Abstract

Abstract: The influences of the affecting factors including porosity, particle size, material layer height, inlet gas temperature, inlet gas velocity and sinter temperature on average temperature of gas in collecting hood were analyzed with simulation. The operating condition in actual production was set as standard condition, a series of simulation experiments were performed by changing the value of single affecting factor in normal fluctuation range. The fitting functions and the fitting curves were obtained by fitting the simulation results of single affecting factor. The semiempirical function were obtained by the method of undetermined coefficients and the fitting functions obtained. The temperature of gas could be forecast with the semiempirical function. The deviation was less than 8% by the comparison of the results and test results, it can be concluded that the semiempirical function is reasonable. The arrangement of the traditional collecting hood was analyzed with the function mentioned earlier. In order to decrease the energy loss and to increase the rate of waste heat recovery of sinter, an optimal collecting hood was proposed and adopted.

Key words: Sinter, Sinter circular cooler, Curves fitting, Simulation, Optimization, Constant temperature

References

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