To solve the practical problem where the temperature field distribution is low at the lower part of furnace chamber and high
at the upper part and the temperature difference is untolerable , which is reflected by the thermocouples at site, the authors take the methods of multipoint test and computer
hologram simulation to research into the fields in the furnace chamber of the
zinc fractionating tower at Shaoguan Smelter CNNC. Comparing the results of the simulation with the test data and the trendline, they agree with each other. That is to say, the numerical model is reasonable and the means of simulation is doable. According to the simulation results, the authors get the flux of the air spouts and the gas spouts from south No. 1 to south No. 4 which is unacquirable from normal tests. It is obvious that the air surplus a lot at the north part of the furnace chamber and the gas surplus relatively at the south part. It is uneven distributions of air and gas in the chamber that result in the temperature field which is low at the lower part and high at the upper part. To uniform the temperature field and to intensify the production, it is necessary to optimize the distributions of air and gas.