	US 12,264,105 B2
	Full-fiber burner brick and preparation method thereof
Meihua Xu, Shandong (CN); Weijin Zheng, Shandong (CN); Deli Ren, Shandong (CN); Cheng Zhang, Shandong (CN); Feng Tang, Shandong (CN); and Wei Feng, Shandong (CN)
Assigned to LUYANG ENERGY-SAVING MATERIALS CO., LTD., Shandong (CN)
Appl. No. 17/780,561
Filed by LUYANG ENERGY-SAVING MATERIALS CO., LTD., Shandong (CN)
PCT Filed Nov. 9, 2021, PCT No. PCT/CN2021/129448 § 371(c)(1), (2) Date May 27, 2022, PCT Pub. No. WO2022/100560, PCT Pub. Date May 19, 2022.
Claims priority of application No. 202011246915.2 (CN), filed on Nov. 10, 2020.
Prior Publication US 2022/0411329 A1, Dec. 29, 2022
Int. Cl. C04B 14/06 (2006.01); C04B 14/30 (2006.01); C04B 14/40 (2006.01); C04B 14/46 (2006.01); C04B 14/48 (2006.01); C04B 28/00 (2006.01); C04B 35/117 (2006.01); C04B 35/622 (2006.01); C04B 35/66 (2006.01); C04B 35/80 (2006.01); C04B 41/45 (2006.01); C04B 41/50 (2006.01); C04B 41/53 (2006.01); C04B 41/81 (2006.01); C04B 35/636 (2006.01); C04B 111/00 (2006.01); C04B 111/20 (2006.01); C04B 111/28 (2006.01)

CPC C04B 28/001 (2013.01) [C04B 14/062 (2013.01); C04B 14/303 (2013.01); C04B 14/40 (2013.01); C04B 14/4625 (2013.01); C04B 14/48 (2013.01); C04B 28/005 (2013.01); C04B 35/117 (2013.01); C04B 35/62236 (2013.01); C04B 35/66 (2013.01); C04B 35/80 (2013.01); C04B 41/4596 (2013.01); C04B 41/5089 (2013.01); C04B 41/5307 (2013.01); C04B 41/81 (2013.01); C04B 35/636 (2013.01); C04B 2111/00431 (2013.01); C04B 2111/00551 (2013.01); C04B 2111/2084 (2013.01); C04B 2111/28 (2013.01); C04B 2235/3463 (2013.01); C04B 2235/5216 (2013.01); C04B 2235/5224 (2013.01); C04B 2235/526 (2013.01); C04B 2235/5272 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/5472 (2013.01)]

8 Claims

1. A full-fiber burner brick, comprising a full-fiber brick body and a coating coated on surface of the full-fiber brick body;

the full-fiber brick body is prepared from a raw material including the following components in mass ratio:


	alumina crystal fiber	20%~50%;
	amorphous ceramic fiber	5%~20%;
	fine powder filler	20%~50%;
	inorganic binder	30%~50%;
	organic binder	5%~15%;
	flocculant	1%~5%;

the alumina crystal fiber is composed of a combination of fibers of different lengths, and mass ratio of the fibers of different lengths in the alumina crystal fiber is:


	0.01 mm ≤ length < 0.05 mm	25%~35%;
	0.05 mm ≤ length < 0.1 mm	35%~45%;
	0.1 mm ≤ length < 1 mm	25%~35%;

the amorphous ceramic fiber is composed of a combination of fibers of different lengths, and mass ratio of the fibers of different lengths in the amorphous ceramic fiber is:


	0.01 mm ≤ length < 0.05 mm	25%~35%;
	0.05 mm ≤ length < 0.1 mm	35%~45%;
	0.1 mm ≤ length < 1 mm	25%~35%;

the coating is formed by a paint comprising the following components in mass ratio:


	high-temperature resistant inorganic fiber	10%~50%;
	reinforcing filler	10%~20%;
	high-temperature expansion filler	5%~15%;
	skeleton filler	7%~30%;
	nanopowder	3%~10%;
	inorganic suspending agent	0%~20%;
	inorganic binder	10%~50%;
	organic additive	3%~15%;

and

water accounting for 10%˜50% of a total mass of all the above components;

a length of the high-temperature resistant inorganic fiber is 0.01˜1 mm;

the reinforcing filler is selected from one or more of acicular microsilica powder and pyrophyllite powder;

the high-temperature expansion filler is selected from one or more of kyanite powder and sillimanite;

the skeleton filler is selected from one or more of mullite powder and zircon powder;

the nanopowder is selected from one or more of nano silica and nano alumina powder;

the inorganic suspending agent is bentonite.