建筑陶瓷行业酚水治理技术分析
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摘要
通过对建筑陶瓷行业目前应用的多项酚水治理方法的分析指出:蒸发排空法二次污染严重,技术不可行;焚烧法技术可行,但独立焚烧炉焚烧法和粉煤热风炉焚烧法能耗较大,水煤浆热风炉焚烧法可以节约制浆工艺用水而且酚水治理彻底;浓缩蒸发-炉内焚烧法中,下段蒸发-炉内焚烧法处理酚水不彻底,技术不可行,3Q两段炉水夹套蒸发-炉内焚烧法可以完全处理酚水,但需要配合其他措施对水夹套的排污废水进行治理,5Q两段炉水夹套蒸发-炉内焚烧分解酚水治理技术,不但可以完全处理煤气站的酚水以及水夹套的排污废水,而且还可以额外处理外来工业或生活废水。
Through the analysis of several phenol-water treatment methods in architectural ceramic industry, it is pointed out that the evaporation-emptying method will cause serious secondary pollution and the technology is not feasible. Technology of incineration is feasible,but the energy consumption of phenol water treatment by the independent incinerator and the hot blast stove burning pulverized coal is great.The process of coal slurry burning for hot blast stove can save the water for pulping process and the phenol water can be thoroughly treated.In the process of concentrated evaporation and incineration in the furnace, it is not feasible that the phenol water is evaporated using under section gas and incinerated in the furnace, because phenol water cannot be completely disposed. In the 3 Q two-stage gasifier, evaporation in the water jacket and incineration in the furnace are used to decompose phenol water; it can fully treat phenol water, but need to cooperate with other measures to treat the regular blowdown water from the water jacket. In the 5 Q two-stage gasifier, the method by which phenol water is evaporated in the water jacket and incinerated in the furnace can not only deal with the phenol water in the gasifier station and the regular blowdown water from the water jacket, but also deal with the external industrial or domestic waste water.
Through the analysis of several phenol-water treatment methods in architectural ceramic industry, it is pointed out that the evaporation-emptying method will cause serious secondary pollution and the technology is not feasible. Technology of incineration is feasible,but the energy consumption of phenol water treatment by the independent incinerator and the hot blast stove burning pulverized coal is great.The process of coal slurry burning for hot blast stove can save the water for pulping process and the phenol water can be thoroughly treated.In the process of concentrated evaporation and incineration in the furnace, it is not feasible that the phenol water is evaporated using under section gas and incinerated in the furnace, because phenol water cannot be completely disposed. In the 3 Q two-stage gasifier, evaporation in the water jacket and incineration in the furnace are used to decompose phenol water; it can fully treat phenol water, but need to cooperate with other measures to treat the regular blowdown water from the water jacket. In the 5 Q two-stage gasifier, the method by which phenol water is evaporated in the water jacket and incinerated in the furnace can not only deal with the phenol water in the gasifier station and the regular blowdown water from the water jacket, but also deal with the external industrial or domestic waste water.
引文
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[3]岑可法,姚强等.煤浆燃烧、流动、传热和气化的理论与应用技术[M].杭州:浙江大学出版社, 1998, 531-537.
[4]苑卫军,李建胜,李金海.“粉煤-酚水”水煤浆治理煤气发生站含酚污水[J].节能与环保, 2004, 6:33-35.
[5]陈强.煤气酚水预蒸焚燃工艺技术研究[D].东营:中国石油大学, 2009.
[6]苑卫军,郭健,陈玲.余热蒸发工艺治理煤气站酚水[J].节能与环保, 2009, 2:54-56.
[7]苑卫军,李建胜,秦利生.两段炉上下段煤气比例调节影响因素分析[J].玻璃, 2010, 37(1):14-18.
[8]苑卫军,李建胜.蒸发浓缩法治理两段炉煤气站酚水[J].工业安全与环保, 2011, 37(5):4-5, 17.
[9]苑卫军,刘春道,张艳.干馏式发生炉冷煤气站处理焦油废水的生产总结[J].燃料与化工, 2016, 2:42-44, 47.