流化床气化炉带出细粉非机械返料机构研究

The application of non-mechanical valve (loop seal) in a fluidized bed gasifier was studied. The result shows that the loop seal can be well applied in the fluidized bed gasifier. Working under fluidized air and flexible air or fluidized air and side air can obtain the good operation of opening/locking and controlling when the ratio of recycle chamber sectional area, supply chamber sectional area and horizontal slit area is 1∶1∶0.5. Meanwhile, the effect of pressure on the loop seal was studied. At last, the empirical equations of solid flow rate and air flow rate were obtained. The results show that predicted data is in good agreement with the experiment data.