Detecting method for iron ore sintering machine air leakage rate

The invention discloses a detecting method for the iron ore sintering machine air leakage rate. The detection method comprises the following steps that detection devices are made firstly, and a row ofthe detection devices are arranged on a sinter bed; when sintering is conducted, wind speeds measured by all the detection devices are recorded, the material surface of the sinter bed is subjected tomesh generation, all wind speeds recorded by the detection devices from beginning to end sequentially serve as the wind speeds of all grid points on longitudinal boundary lines where the detection devices are located, and the effective air amount QY passing through the bed within unit time is calculated; the total flue gas amount QZ in a flue within unit time is calculated; the amount QE of vapour generated within the unit time is calculated; the QY, the QZ and the QE are converted into the amount under the standard state, the sintering system air leakage QLstandard within unit time is calculated, and the sintering sy