Novel vertical sieve plate tower plate cap cover

The utility model relates to a novel vertical sieve plate tray cap hood which comprises a cap hood body, the cap hood body is composed of a cap hood side wall and a cap hood top plate, the top of the cap hood side wall is integrally provided with the cap hood top plate, and the cap hood side wall is of a hollow cuboid structure. A plurality of semicircular air lifting holes are integrally formed in the upper parts of the symmetrical side walls of the long sides of the side walls of the cap cover in an array manner; a semicircular baffle plate is integrally formed at the edge of the diameter of the upper part of each semicircular air lifting hole through a stamping process in a stamping manner; and the lower part of the side wall of the cover hood is also integrally provided with a liquid flow rectangular long hole. According to the utility model, the conventional circular gas raising hole is changed into the semicircular hole, and the semicircular baffle plate is integrally arranged on the semicircular hole,