涡旋式分解炉中煤及垃圾衍生燃料共燃烧耦合CaCO3分解的数值模拟

doi:10.11949/j.issn.0438-1157.20170028

化工学报 ›› 2017, Vol. 68 ›› Issue (6): 2519-2525.DOI: 10.11949/j.issn.0438-1157.20170028

涡旋式分解炉中煤及垃圾衍生燃料共燃烧耦合CaCO₃分解的数值模拟

梅书霞, 谢峻林, 陈晓琳, 李雪梅, 裴可鹏, 何峰

武汉理工大学材料科学与工程学院, 硅酸盐建筑材料国家重点实验室, 湖北武汉 430070

收稿日期:2017-01-08 修回日期:2017-02-23 出版日期:2017-06-05 发布日期:2017-06-05
通讯作者: 谢峻林
基金资助:
国家自然科学基金项目（51502221）

Numerical simulation of co-combustion of coal and refuse derived fuel in coupling with decomposition of calcium carbonate in precalciner with swirl type prechamber

MEI Shuxia, XIE Junlin, CHEN Xiaolin, LI Xuemei, PEI Kepeng, HE Feng

College of Material Science & amp; Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, Hubei, China

Received:2017-01-08 Revised:2017-02-23 Online:2017-06-05 Published:2017-06-05
Contact: 10.11949/j.issn.0438-1157.20170028
Supported by:
supported by the National Natural Science Foundation of China (51502221)

摘要/Abstract

摘要：

针对一实际尺寸的带下置涡流室的分解炉进行了数值模拟，探讨了煤、垃圾衍生燃料（RDF）两种燃料共燃与碳酸钙分解相耦合的化学反应过程。计算所得煤粉及RDF燃烬率分别为99%和100%，碳酸钙分解率为95%，与工程实际数据吻合较好。结果表明：煤粉自涡流室顶部入炉后，先向下俯冲，再在气流的携带下转而向上运动，在分解炉柱体部分螺旋上升，其燃烧时以焦炭燃烧占主导，在涡流室上方的锥体部分及锥体部分上方的下半柱体部分形成主燃区；RDF自分解炉柱体部分下部水平入炉后，先运动至中部，旋即与煤粉流交织在一起螺旋上升，其燃烧时以挥发分燃烧占主导，在分解炉下半柱体部分形成主燃区；CaCO₃自涡流室顶部入炉后，首先在涡流室及其下方的锥体部分做涡旋运动，一部分因吸收高温气流的热量而分解，剩余大部分上旋至燃料主燃烧区，因吸收燃烧所释放的热量而分解；燃料燃烧放热与CaCO₃吸热分解相耦合后，最终在分解炉柱体部分形成了均匀、稳定的温度场。

关键词: 分解炉, 垃圾衍生燃料, 煤燃烧, 共燃, 碳酸钙分解, 化学反应, 数值模拟

Abstract:

Numerical simulation of co-combustion of pulverized coal, refuse derived fuel (RDF) and thermal decomposition of calcium carbonate was carried out aiming at an actual precalciner with swirl type prechamber. The predicted burn-off rates of pulverized coal and RDF were 99% and 100% respectively,and the predicted decomposing rate of calcium carbonate was 95%, being in accordance with engineering data actually measured. The results show that the fuel and raw meal are carried by gas stream to rise spirally. The pulverized coal stream starts to burn soon when injected into the furnace from the top of the prechamber, and then burns rapidly, being dominated by char combustion, when rising into the cone section and the column section above the prechamber, forming a violent combustion region. The RDF starts to burn soon, being dominated by volatile combustion, when blown into the furnace horizontally from the lower part of the column section of the precalciner, forming a main combustion zone, and then rises spirally intertwining with the pulverized coal stream. The calcium carbonate begins to whirl in the prechamber, being decomposed by absorbing the heat of high-temperature gas stream, when falling into the furnace from the top of the prechamber, and then is further decomposed in the main combustion zone of coal and RDF on the way up. As a result of the coupling of co-combustion and decomposition, there is a uniform and steady temperature field in the column section of the precalciner.

Key words: precalciner, RDF, coal combustion, co-combustion, calcium carbonate decomposition, chemical reaction, numerical simulation

中图分类号:

TQ172

梅书霞, 谢峻林, 陈晓琳, 李雪梅, 裴可鹏, 何峰. 涡旋式分解炉中煤及垃圾衍生燃料共燃烧耦合CaCO₃分解的数值模拟[J]. 化工学报, 2017, 68(6): 2519-2525.

MEI Shuxia, XIE Junlin, CHEN Xiaolin, LI Xuemei, PEI Kepeng, HE Feng. Numerical simulation of co-combustion of coal and refuse derived fuel in coupling with decomposition of calcium carbonate in precalciner with swirl type prechamber[J]. CIESC Journal, 2017, 68(6): 2519-2525.

参考文献 23

[1]	ARANDA U, ANA M L, GERMAN F, et al. Uses of alternative fuels and raw materials in the cement industry as sustainable waste management options [J]. Renewable and Sustainable Energy Reviews, 2013; 23: 242-260.
[2]	BAHAREH R, ATOUSA S, RAJEEV R, et al. Environmental and economic aspects of production and utilization of RDF as alternative fuel in cement plants: a case study of metro vancouver waste management [J]. Resources, Conservation and Recycling, 2013, 81 (9): 105-114.
[3]	MUATAFA K, ESIN G, YASEMIN T, et al. Development of refuse derived fuel for cement factories in Turkey [J]. Combustion Science and Technology, 2010, 183 (9): 203-219.
[4]	耿春雷, 顾军. 以生活垃圾和污泥替代水泥原燃料生产生态水泥的研究进展 [J]. 材料导报, 2011, 25 (10): 147-149, 142.
	GENG C L, GU J. Developing of eco-cement as center of fast developing of the green building materials [J]. Materials Review, 2011, 25 (10): 147-149，142.
[5]	胡曙光, 聂帅, 朱明, 等. 城市生活垃圾制备水泥窑用衍生燃料的性能分析 [J]. 安全与环境学报, 2014, 14 (14): 176-180.
	HU S G, NIE S, ZHU M, et al. Analysis of the behaviors of the fuel for cement-making from the refuse left-over by the rural solid waste [J]. Journal of Safety and Environment, 2014, 14 (14): 176-180.
[6]	申金永, 袁俊, 马明, 等. 熟料生产线部分使用RDF的工程实践 [J]. 新世纪水泥导报, 2016, 1: 70-73, 7.
	SHEN J Y, YUAN J, MA M, et al. Engineering practice for partially using RDF as fuel in clinker production line [J]. Cement Guide for New Epoch, 2016, 1: 70-73, 7.
[7]	GENON G, BRIZIO E. Perspectives and limits for cement kilns as a destination for RDF [J]. Waste Management, 2008, 28(11): 2375-2385.
[8]	MUSTAFA K. Environmental and economic advantages associated with the use of RDF in cement kilns [J]. Resources, Conservation and Recycling, 2012, 68: 21-28.
[9]	LI Y Q, WANG H Z, ZHANG J, et al. Research on dioxins suppression mechanisms during MSW co-processing in cement kilns [J]. Procedia Environmental Sciences, 2012, 16: 633-640.
[10]	VEKEMANS O, LAVIOLETTE J P, CHAOUKI J. Co-combustion of coal and waste in pulverized coal boiler [J]. Energy, 2016, 94 (1): 742-754.
[11]	WAN H P, CHANG Y H, CHIEN W C, et al. Emissions during co-firing of RDF-5 with bituminous coal, paper sludge and waste tires in a commercial circulating fluidized bed co-generation boiler [J]. Fuel, 2008, 87 (6): 761-767.
[12]	CHYANG C S, HAN Y L, WU L W, et al. An investigation on pollutant emissions from co-firing of RDF and coal [J]. Waste Management, 2010, 30 (7): 1334-1340.
[13]	LEE J M, KIM D W, SHI J, et al. Co-combustion of refuse derived fuel with Korean anthracite in a commercial circulating fluidized bed boiler [J]. Energy, 2010, 35 (7): 2814-2818.
[14]	HU Z J, LU J D, HUANG L, et al. Numerical simulation study on gas-solid two-phase flow in pre-calciner [J]. Communications in Nonlinear Science and Numerical Simulation, 2006, 11 (3): 440-451.
[15]	XIE J L, MEI S X. Numerical simulations in different types of precalciners for the optimization on flow pattern [J]. ZKG Int., 2008, (1): 54-62.
[16]	ZHENG J X, YAN T Z, YANG J. Numerical simulation of gas and solid flow behavior in the pre-calciner with large eddy simulation approach [J]. Energy Procedia, 2012, 17 (Part B): 1535-1541.
[17]	HRVOJE M, EBERHARD V B, MILAN V, et al. Numerical modelling of calcination reaction mechanism for cement production [J]. Chemical Engineering Science, 2012, 69 (1): 607-615.
[18]	梅书霞, 谢峻林, 何峰, 等. DD分解炉燃烧与分解耦合过程的数值模拟 [J]. 化工学报, 2013, 64 (3): 897-905.
	MEI S X, XIE J L, HE F, et al. Numerical simulation of coupling mechanism between pulverized coal combustion and calcium carbonate decomposition in double-sprayed precalciner [J]. CIESC Journal, 2013, 64 (3): 897-905.
[19]	CHEN X L, XIE J L, MEI S X, et al. Numerical simulation of gas-solid flow and pulverized coal combustion in a swirl chamber precalciner[C]//JIANG Z Y. Proc. 6th International Conference on Advanced Design & Manufacturing Engineering. Paris, France: Atlantis Press, 2016: 301-306.
[20]	MEI S X, XIE J L, CHEN X L, et al. Moving characteristics of coal and RDF in a swirl-type precalciner by numerical simulation [C]//JIANG Z Y. Proc. 6th International Conference on Advanced Design & Manufacturing Engineering. Paris, France: Atlantis Press, 2016: 311-316.
[21]	谢峻林, 刘娜, 梅书霞, 等. 分解炉内垃圾衍生燃料和煤粉燃烧的数值模拟 [J]. 武汉理工大学学报, 2013, 35 (11): 8-42.
	XIE J L, LIU N, MEI S X, et al. Numerical simulation study on combustion of refused derived fuel and pulverized coal in calciner [J]. Journal of Wuhan University of Technology, 2013, 35 (11): 8-42.
[22]	谢峻林, 张伟, 梅书霞, 等. 涡旋式分解炉内垃圾衍生燃料和煤粉燃烧特性的数值模拟 [J]. 武汉理工大学学报, 2015, 37 (5): 1-8.
	XIE J L, ZHANG W, MEI S X, et al. Numerical simulation on combustion of refused derived fuel and pulverized coal in an eddy-current precalciner [J]. Journal of Wuhan University of Technology, 2015, 37 (5): 1-8.
[23]	陶从喜, 彭学平, 胡芝娟, 等. TWD型分解炉的研究开发及工程应用 [J]. 水泥, 2007, (4): 20-22.
	TAO C X, PENG X P, HU Z J, et al. TWD calciner development and its engineering application [J]. Cement, 2007, (4): 20-22.

涡旋式分解炉中煤及垃圾衍生燃料共燃烧耦合CaCO₃分解的数值模拟

Numerical simulation of co-combustion of coal and refuse derived fuel in coupling with decomposition of calcium carbonate in precalciner with swirl type prechamber

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