Cracking furnace device-Yixing Kaida Refractory Co., Ltd

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Cracking furnace device

Products required for the cracking furnace installation: high-strength mullite brick series products and supporting clay, high-strength and low-conductivity castable series products.

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Keywords: high-strength wear-resistant materials wear-resistant corrosion-resistant materials

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fang.kaiyun@163.com

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Products required for the cracking furnace installation: high-strength mullite brick series products and supporting clay, high-strength and low-conductivity castable series products.

Lining materials for catalytic cracking units

Category	Level	Hot surface temperature ℃	Bulk density Kg/m3	Compressive strength MPa	Bending strength MPa	Line change rate %	Thermal conductivity w/m.k	Al2O3 %	Fe2O3 %	Normal temperature wear resistance cm3
High wear resistance	Grade A (AA)	110	≤3100	≥80	≥10	_	_	≥90	≤1.0	≤6
		540	≤2950	≥80	≥10	_	_
		815	≤2950	≥80	≥10	0~-0.25	≤1.5
Wear-resistant	B1 level (B01)	110	≤2500	≥60	≥8	_	_	≥50	≤2.5	≤10
		540	≤2450	≥50	≥7	_	_
		815	≤2450	≥50	≥7	0~-0.2	≤0.9
	B2 level	110	≤2300	≥40	≥6	_	_
		540	≤2250	≥30	≥5	_	_
		815	≤2250	≥30	≥5	0~-0.2	≤0.8
Thermal insulation and wear resistance	LC1	110	≤2000	≥50	≥7	_	_	≥40	≤1.0	≤10
		540	≤1950	≥40	≥6	_	0.45~0.55
		815	≤1950	≥40	≥5	0~-0.1	0.5~0.59
	C1 level	110	≤1800	≥40	≥7	_	_	≥40	≤1.0	≤18
		540	≤1750	≥35	≥6	_	0.45~0.55
		815	≤1750	≥35	≥5	0~-0.2	0.5~0.59
	C2 level (C03)	110	≤1600	≥35	≥5	_	_	≥36	≤2.0	≤20
		540	≤1550	≥30	≥4	_	0.35~0.42
		815	≤1550	≥25	≥3	0~-0.2	0.4~0.49
	C3 level (LC4)	110	≤1400	≥20	≥3	_	_	≥36	≤2.0	≤15
		540	≤1350	≥15	≥2.5	_	0.26~0.35
		815	≤1350	≥15	≥2.5	0~-0.2	0.34~0.4
Thermal insulation	D02	110	≤1400	≥20	≥4.5	_	_
		540	≤1350	≥15	≥3.5	0~-0.2	_
		815	≤1350	≥14	≥3	_	0.32~0.4
	D1 level	110	≤1100	≥8	≥2.5	_	_
		540	≤1050	≥7	≥2	_	≤0.25
		815	≤1050	≥7	≥1.5	0~-0.2	≤0.28
	D2 level	110	≤1000	≥7	≥2	_	_
		540	≤950	≥6	≥1.5	_	≤0.23
		815	≤950	≥6	≥1.5	0~-0.2	≤0.25
1. The thermal conductivity is tested according to the flat plate method. 2. Performance indicators are measured values without adding steel fibers. 3. The data of the 815℃ reburning line change rate and the 815℃ line change rate should be the same. 4. Thermal shock stability (815℃, air cooling) Class A, Class C: ≥10 times. 5. The thermal conductivity of Class A high wear-resistant lining is not used as a material testing and evaluation index, and is only used as a reference for calculating wall temperature.