将经过微波焙烧处理过的磷矿配制成实验所需浓度的矿浆，向矿浆中通入SO2

The phosphate rock that has been roasted by microwave is prepared into a slurry of the required concentration for the experiment, and SO2 is introduced into the slurry for absorption. The experiment adopts dynamic gas distribution, using SO2 standard gas with a concentration of 9 999.7 mg·m-3, high purity With N2 and 99.5% O2, simulated flue gas with a SO2 concentration of 2500 mg·m-3 and an oxygen content of 0%, 5%, 10%, and 15% was prepared. Use a mass flow meter to control the prepared simulated flue gas. After being evenly mixed in the mixing tank, it enters the three-necked flask absorption device to react with the phosphate rock slurry. The reacted gas passes through the gas outlet, passes through the drying tube, and is dried and analyzed by flue gas The instrument performs detection, and the exhaust gas is absorbed with potassium permanganate solution.

Microwave-roasted phosphorus ore is mixed into the required concentration of mineral slurry, so2 is absorbed into the slurry, dynamic gas distribution is used in the experiment, and SO2 standard is used at a concentration of 9 999.7 mg m-3 Gas, high purity N2 and 99.5 percent of O2, the so2 concentration of 2,500 mg m-3, oxygen content of 0%, 5%, 10%, 15% of the simulated flue gas. The use of mass flow meter control preparation of simulated flue gas, after mixing evenly, into the three-neck canister absorption device and phosphorus slurry reaction, after the reaction of the gas through the air port, drying through the dry pipe, with the flue gas analyzer for testing, exhaust gas with potassium permanganate solution absorption.

The phosphate rock treated by microwave roasting was made into slurry with the required concentration, and SO2 was introduced into the pulp for absorption. The dynamic gas distribution was used in the experiment. The simulated flue gas with SO2 concentration of 2500 mg · M-3 and oxygen content of 0%, 5%, 10% and 15% were prepared by dynamic gas distribution. The prepared simulated flue gas is controlled by mass flowmeter, mixed evenly in the mixing tank, and then enters into the absorption device of three necked flask for reaction with phosphate rock slurry. The reaction gas passes through the gas outlet and is dried through the drying tube, and then detected by the flue gas analyzer. The tail gas is absorbed by potassium permanganate solution.<br>