▎ 摘　　要

NOVELTY - High thermal conductivity and wear-resistant material comprises 17-25 pts. wt. zirconium corundum, 9-13 pts. wt. nano-aluminum nitride, 3-6 pts. wt. graphene, 23-26 pts. wt. silicon carbide, 8-16 pts. wt. zirconia fine powder, pure calcium aluminate 5-9 pts. wt. cement, 3-7 pts. wt. alumina fine powder, 0.2-0.4 pts. wt. dispersant, 4-8 pts. wt. silica sol, 0.1-0.15 pts. wt. explosion-proof fiber, 1-3 pts. wt. calcium oxide and 1-2 pts. wt. modified white clay. The preparation method of high thermal conductivity and wear-resistant material involves adding explosion-proof fiber and modified white clay to pure calcium aluminate cement, stirring and mixing to uniformly disperse the explosion-proof fiber and modified white clay in pure calcium aluminate cement to obtain mixed material. USE - High thermal conductivity and wear-resistant material for circulating fluidized bed boiler. ADVANTAGE - The high thermal conductivity and wear-resistant material is improves the compactness of the boiler lining sintered by the high thermal conductivity and wear-resistant material. DETAILED DESCRIPTION - High thermal conductivity and wear-resistant material for a circulating fluidized bed boiler, comrises 17-25 pts. wt. zirconium corundum, 9-13 pts. wt. nano-aluminum nitride, 3-6 pts. wt. graphene, 23-26 pts. wt. silicon carbide, 8-16 pts. wt. zirconia fine powder, pure calcium aluminate 5-9 pts. wt. cement, 3-7 pts. wt. alumina fine powder, 0.2-0.4 pts. wt. dispersant, 4-8 pts. wt. silica sol, 0.1-0.15 pts. wt. explosion-proof fiber, 1-3 pts. wt. calcium oxide and 1-2 pts. wt. modified white clay. The preparation method of high thermal conductivity and wear-resistant material involves adding explosion-proof fiber and modified white clay to pure calcium aluminate cement, stirring and mixing to uniformly disperse the explosion-proof fiber and modified white clay in pure calcium aluminate cement to obtain mixed material. The pH of the silica sol to 8.5-9.5 and the solid content of the silica sol to 20-30 wt.%, and grind the dispersant and alumina fine powder in a vibration mill for 30 minutes to make the dispersant and alumina fine powder sufficient and homogenized to make homogenized powder. The silicon carbide and homogenizing powder are added to the silica sol, stirred and mixed and added it to the ball mill, and ball milling for 15-28min at the speed of 250-400 revolution per minute to uniformly mix the silicon carbide, homogenized powder and silica sol, and added ethanol to the ball mill, the volume ratio of ethanol to silica sol is 0.3-1:1, and continue milling at a speed of 250-400 revolution per minute, until the silica sol is completely gelled to obtain a gel intermediate. The obtained gel intermediate is added into an oven, and dry it at a temperature of 90-96 degrees C, then added it to a ball mill, and ball-mill for 30-40 minute at a speed of 250-400 revolution per minute to obtain a mixture material. The zirconium corundum powder, nano-aluminum nitride, graphene, zirconia fine powder, and calcium oxide are weighed and uniformly mixed each material with the first mixed material and second mixed material to obtain a highly thermally conductive and wear-resistant material. An INDEPENDENT CLAIM is included for a method for circulating fluidized bed boiler with high heat-conducting abrasion-proof material, which involves: (A) preparing the saturated aqueous solution of calcium nitrate; (B) immersing whiteclay completely in the saturated calcium nitrate aqueous solution, ultrasonically processing for 10-20 minutes, filtering to obtain wet; (C) adding sodium silicatein processing obtained by white clay, where white clay and the weight ratio of thesodium silicate is 20:0.5-1, mill ball is 1-2 hours at speed 300-600 revolution per minute to obtain the CSH gel polymer of taking white clay as carrier; (D) preparing saturatedaqueous sodium silicate solution by white clay ascarrier of the CSH gel polymer obtained into the silicate saturated aqueous solution, stirring and mixing reaction 1.5-2 hours; and (E) filtering last step in the obtained reaction mixture to obtain filter cake, washing the filter cake by de-ionized water then filtering again, repeating for 3-7 times, drying the filter cake, crushing to obtain the modified white clay.