A flat plat fixed-bed reactor for gas purification was designed, its structure, working principle, function of screen plate, guide baffle, gas receiver and filtration cap were introduced.

Folding hinge and cap are made by stainless steel plate, the inner include standard garbage bags, a steel nets, and the other is a kind of is the plastic garbage bags can rotate.

The locking screw (17) and an end (18) are pressed on the arm plate (2) of the support frame by a cap (19).