In operational parameters of the pulverized coal burner

the measurement of pulverized coal concentration in primary air is very difficult

having no effective monitoring method. Especially for measuring pulverized coal concentration in primary air for boilers using exhaust gas to convey the pulverized coal

there is no feasible method up to now. Hence

it has certain infuence upon thorough study on operational behavior of burners

on operation optimization of them

on equipment retrofitting and improving combustion performance etc.. Througth establishment of test stand for measuring concentration of pulverized coal

the experimental study on measuring concentration of pulverized coal using exhaust gas to convey has been carried out

obtaining linear correlation between static pressure difference before and after mixing pulverized coal with primary air under conditions of constant temperature and fixed gas flow velocity

and the concentration of pulverized coal

providing new thinking and method for measuring concentration of pulverized coal using exhaust gas to convey.