The invention discloses a high-aluminum bearing
ceramic bar beam and a preparation method thereof. The preparation method is as follows: 64-72wt% of aluminum
trioxide, 10-15%wt% of zirconia, 10-15wt% of
china clay and 4-6wt% of
wollastonite raw material are mixed by ball milling, then Guangdong black mud,
carboxymethyl cellulose and water are added for ball milling mixing to prepare a block-shaped mud material, the block-shaped mud material is made into a blank in a stale vacuum mud refining
machine, and the blank is coated with a film for nature
drying, then is put in a hot air stove for not less than 15 days for
drying to have a
water content below 0.2%, further is put into a high-temperature shuttle
kiln for heating to 600-700 DEG C, is kept warm for 8 to 10 hours, then is heated to 1400 - 1500 DEG C, and is kept warm for 4 to 5 hours for cooling to
discharge. The high-aluminum bearing
ceramic bar beam has high acid and alkali resistance and
corrosion resistance, also has high
compressive strength and
flexural strength and high opening rate, is suitable for requirements of high gas velocity, reduces the use number of the bar beam, has the characteristics of stability, safety,
low resistance, low consumption and uniform distribution in a strong acid medium, and can improve the acid yield by more than 12%, increase the service life by more than 3 years, and reduce the production cost by more than 30%.