The invention discloses a
refractory sintered clay hollow
brick, and belongs to the technical field of hollow bricks. The
refractory sintered clay hollow
brick comprises the following raw materials in parts by weight: 55 to 60 parts of clay, 12 to 16 parts of attapulgite, 10 to 14 parts of
silica fume, 8 to 12 parts of glass fibers, 18 to 20 parts of
ceramic microbeads, 5 to 9 parts of
cement, 3 to 5 parts of
corundum powder, 3 to 5 parts of
quartz powder, 4 to 6 parts of aluminum
oxide, 7 to 9 parts of
yttrium oxide, 6 to 8 parts of brominated
epoxy resin, 2 to 4 parts of organic
bentonite, 1 to 3 parts of
starch, 2 to 4 parts of chlorinated paraffin, 4 to 5 parts of
melamine cyanurate, 5 to 6 parts of
tricresyl phosphate, 1 to 3 parts of antioxidants, 1 to 2 parts of water reducers, 1 to 3 parts of preservatives and an appropriate amount of water. The invention further discloses a preparation method of the
refractory sintered clay hollow
brick. The refractory sintered clay hollow brick disclosed by the invention is simple to prepare,
corrosion resistant and heat-insulated, relatively high in strength and
fire resistance, and long in service life.