閆新平 郭占成 劉竹煥 吳香琦

摘 要：中國是個鉀資源嚴(yán)重短缺的國家，而鋼鐵冶金燒結(jié)除塵灰因含鉀含量高而排放棄用，既造成資源浪費，又造成嚴(yán)重環(huán)境污染。本課題主要研究燒結(jié)電除塵灰的物理化學(xué)性質(zhì)的分布規(guī)律，研究各級電除塵灰的物化性質(zhì)及其對提取氯化鉀工藝的影響規(guī)律，提出燒結(jié)煙氣電除塵灰分級收集和回收利用的方案，為燒結(jié)電除塵灰的合理利用提供技術(shù)參數(shù)；研究典型鋼鐵企業(yè)燒結(jié)電除塵灰的浸取制鹵技術(shù)、鹵水除雜凈化技術(shù)、多組分溶液體系K-Na分步結(jié)晶技術(shù)，研發(fā)以燒結(jié)煙塵為原料制備KCl的工業(yè)示范裝備與技術(shù)集成，建立年處理24萬噸燒結(jié)電除灰的示范工程，達(dá)到經(jīng)濟(jì)、環(huán)保、穩(wěn)定運行技術(shù)水平，為解決我國鉀資源問題開辟一條新的資源途徑，并實現(xiàn)難處理冶金粉塵的高效循環(huán)利用。

關(guān)鍵詞：冶金 燒結(jié)煙塵 氯化鉀

Abstract：China is a country of potassium resources serious shortage， and iron and steel metallurgy sintering dust because of high potassium content and give up， cause resource waste， and cause serious environmental pollution. This subject mainly research the sintering of the electric dust distribution， physical and chemical properties of the electric dust ash at all levels of physical and chemical properties， its influence on the extraction of potassium chloride process， put forward the electric sintering flue gas ash level collection and recycling solution， for the rational use of sintering electric dust ash provide technical parameters； Research typical sintered iron and steel enterprise of electric dust ash leaching system halogen technology， in the brine purification technology， multicomponent solution system K - Na fractional crystallization technology， research and development in sintering dust as a raw material preparation of KCl industrial demonstration equipment and technology integration， establish processing 240000 tons of electric ash sintering demonstration project， to achieve economic， environmental protection and stable operation of the technical level， to solve the problem of potassium resources open up a new resource way， and realize the difficult of metallurgical dust and efficient recycling.

Key words：metallurgical Sintering smoke Potassium chloride

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