摘要
分析抽屉窑能源利用特点,建立热量平衡计算模型,论证节能技改方案。研究表明,未进行烟气余热回收,液化石油气消耗2301 Nm3/窑,热效率14.7%,能源利用率56.3%。安装快速切换型高效陶瓷蓄热装置实现烟气余热高效回收,热效率提高17.1%,相对节能率116.3%。在300→980℃升温阶段和980→1240℃升温阶段中,基于高温烟气余热高效回收和窑内烟气-成品表面对流传热强化为原理的低氧弥散燃烧和高温旋流燃烧技术,是理论上可行的节能改造方案。
In this paper, the energy-utilization characteristics of shuttle kiln is explained, its heat-balance model built, and its technical reformation scheme of energy-saving proved. Researches show that the consumption of liquefied petroleum gas per furnace without flue gas waste heat recovery reaches 2301 Nm3 , the thermal efficien- cy 14.7% and the energy utilization ratio 56.3%. The Installation of a fast-switchover-type high-specific-surface- area ceramic regenerator can realize a high-efficient waste heat recovery of flue gas , increasing heat efficiency by 17.1% and the relative energy saving ratio to 116.3%. Low-oxygen dynamic combustion and high-temperature swirling combustion during the temperature rising period from 300 ℃ to 980℃ and from 980℃ to 1240 ℃ based on the principle of the high-efficiency waste heat recovery of flue gas and the intensive convection heat transfer between the flue gas and the production surface is theoretically the feasible reformation scheme of energy-saving.
出处
《矿冶》
CAS
2013年第3期79-83,共5页
Mining And Metallurgy
关键词
抽屉窑
高压电瓷
热量平衡
节能方案
shuttle kiln
high-voltage ceramic
heat balance
energy-saving scheme
