Divide discharge orifice grate and hot -blast furnace check brick braced system

The utility model relates to a divide discharge orifice grate and hot -blast furnace check brick braced system, divide the discharge orifice grate, including the grate that the whole cast takes shape,the grate is along high to divideing into upper segment, middle section and hypomere, a plurality of apertures of upper segment evenly distributed, wherein 3 arbitrary adjacent apertures are all arranged according to regular triangle, and per 3 adjacent apertures are a set of a plurality of punch combinations that evenly divide into, the macropore is seted up to the middle section and the hypomere of every punch combination, and inclined hole and macroporous top intercommunication are passed through to the bottom of 3 apertures in every punch combination. Divide the discharge orifice grate, the aperture of upper segment be used for with the check brick on the cooperation of ventilation grill hole, middle section and hypomere adoption macropore are with increase pore wall thickness to satisfy air -conditioning req