Typical Refractories Design of Rotary Kiln Hazardous Waste Incineration System

doi:10.19691/j.cnki.1004-4493.2022.02.006

China's Refractories ›› 2022, Vol. 31 ›› Issue (2): 30-34.DOI: 10.19691/j.cnki.1004-4493.2022.02.006

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Typical Refractories Design of Rotary Kiln Hazardous Waste Incineration System

LUO Huaming¹, CAI Binli¹, ZUO Genliang², ZHANG Guohua³, WANG Sheng³, FAN Mingming¹, CHEN Kun¹, ZHAN Huasheng¹^,^*()

1 Beijing Jinyu Tongda Refractories Technology Co., Ltd., Beijing 100043, China
2 Beijing Capital Environmental Investment Co., Ltd., Beijing 100028, China
3 Veolia (China) Environmental Services Co., Ltd., Shanghai 200124, China

Online:2022-06-15 Published:2022-07-05
Contact: ZHAN Huasheng
About author:Luo Huaming, a senior engineer, obtained his bachelor’s degree from Xi’an University of Architecture and Technology majoring in Materials Science. He is currently the manager of Beijing Jinyu Tongda Refractories Technology Co., Ltd. and the vice president of The Association of China Refractories Industry. He has been engaged in technology research & development, quality management and production management of refractories for a long time. He won the honors of the 22^nd Beijing Excellent Young Engineer in 2014 and the Excellent Chief Engineer of National Cement Enterprises in 2020. He has published 14 academic papers, obtained 10 authorized patents, and presided over or participated in the preparation and revision of 6 standards.

Abstract

Abstract:

This paper summarizes the current situation of China’s industrial hazardous waste treatment, the disposal technology and the characteristics of rotary kiln incineration system, analyzes the refractory lining design of rotary kiln incineration system in China, and puts forward optimization suggestions according to the process characteristics.

Key words: rotary kiln, secondary combustion chamber, hazardous waste, incinerator, refractories

LUO Huaming, CAI Binli, ZUO Genliang, ZHANG Guohua, WANG Sheng, FAN Mingming, CHEN Kun, ZHAN Huasheng. Typical Refractories Design of Rotary Kiln Hazardous Waste Incineration System[J]. China's Refractories, 2022, 31(2): 30-34.

Figures/Tables 6

Fig. 1 Cement kiln collaborative hazardous waste treatment system 1—grate cooler, 2—kiln head cover, 3—rotary kiln, 4—smoke chamber, 5—calciner, 6—preheater, 7—tertiaryair pipe

Fig. 2 Rotary kiln incinerator system 1—material pit, 2—feed system, 3—rotary kiln, 4—secondary combustion chamber, 5—boiler, 6—quenching tower, 7—deacidification tower, 8—dust removal, 9—chimney

Fig. 3 Lining design of rotary kiln

Fig. 4 Schematic diagram of grooved brick design

Table 1 Advantages and disadvantages of several design schemes

Project	Single-layer brick structure	Double-layer brick structure	Composite brick structure	Integral castable structure
Advantages	High structural stability, convenient construction	Low cylinder temperature	Low cylinder temperature, high structural stability	Low cylinder temperature, high structural stability
Disadvantages	High cylinder temperature	Bricks are easy to fall off in the later stage, high construction requirements	Low production efficiency, difficult sintering control	Relatively complex maintenance, long drying time

Fig. 5 Typical refractory lining design of secondary combustion chamber (thickness, mm)

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[4]	Ding Chaoyang, Liu Dan, Quan Lei. Coking prevention and control in hazardous waste incineration system of rotary kiln. Energy and Energy Conservation, 2020, 178 (7): 43-45. (in Chinese)
[5]	Zhang Shaokun. Discussion on masonry and drying technology of hazardous waste incineration rotary kiln. Naihuo Cailiao (Refractories, in Chinese), 2012, 46 (3): 236-238.

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Typical Refractories Design of Rotary Kiln Hazardous Waste Incineration System

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