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    • 1. 发明公开
    • 시멘트 킬른 연소 배기 가스 처리 장치 및 처리 방법
    • 水泥杀死废气处理装置和处理方法
    • KR1020070103369A
    • 2007-10-23
    • KR1020077014449
    • 2005-12-27
    • 다이헤이요 세멘토 가부시키가이샤가부시키가이샤 닛폰 쇼쿠바이
    • 사이토,신이치로우치야마,야스히로데라사키,준이치곤도,히사시하기,미츠하루마사키,신유키
    • C04B7/60B01D53/86
    • B01D53/86B01D53/8625B01D53/864B01D53/8668B01D2255/10B01D2255/20707B01D2255/20723C04B7/436F27B7/2033F27D17/008Y02A50/235C04B7/364
    • [PROBLEMS] To while keeping facility cost and operating cost low, efficiently remove from a cement kiln firing waste gas any hazardous substances, such as dust, NOx, residual organic pollutants, volatile organic compounds, CO and odorous substances. [MEANS FOR SOLVING PROBLEMS] There is provided firing waste gas treating apparatus (1) comprising dust collection unit (6) for collecting of dust from cement kiln firing waste gas (G1), wet dust collector (7) as a catalyst poisoned substance removing unit for removing of catalyst poisoned substances from firing waste gas (G2) having passed through the dust collection unit (6), preheating units (10,11) for preheating of firing waste gas (G3) having passed through the wet dust collector (7), and catalyst unit (12) for removing of NOx, residual organic pollutants, etc. from the preheated firing waste gas. A titanium/vanadium catalyst or the like as oxide catalyst is used in the upstream side of the catalyst unit (12), while a platinum catalyst or the like as noble metal catalyst is used in the downstream side thereof. The firing waste gas after removing of catalyst poisoned substances is heated to >= 140°C by means of the preheating units, thereby preventing any drop of the efficiency of denitration and volatile organic compound decomposition.
    • [问题]为了在保持设备成本和运行成本低的同时,有效地从水泥窑中取出燃烧废气中的任何有害物质,如灰尘,NOx,残留的有机污染物,挥发性有机化合物,CO和恶臭物质。 [解决问题的手段]本发明提供一种烧成废气处理装置(1),其特征在于,具备:从水泥窑燃烧废气(G1),湿式除尘器(7)作为催化剂中毒物质除去 用于从通过灰尘收集单元(6)的焙烧废气(G2)中除去催化剂中毒物质的单元,用于预热通过湿式除尘器(7)的焙烧废气(G3)的预热单元(10,11) )和用于从预热的燃烧废气中除去NOx,残留的有机污染物等的催化剂单元(12)。 在催化剂单元(12)的上游侧使用作为氧化物催化剂的钛/钒催化剂等,在其下游侧使用铂催化剂等作为贵金属催化剂。 通过预热单元将催化剂中毒物质除去后的烧成废气加热至> = 140℃,防止脱硝效率和挥发性有机化合物分解的降低。
    • 3. 发明公开
    • 석탄회의 처리방법 및 처리장치
    • 处理煤灰和加工系统的方法
    • KR1020090106470A
    • 2009-10-09
    • KR1020097012194
    • 2007-11-30
    • 다이헤이요 세멘토 가부시키가이샤
    • 나카무라,도모미치곤도,히사시사이토,신이치로
    • C04B7/38B09B5/00C04B7/44
    • C04B7/364B03B9/04C04B7/28C04B7/38C04B7/4423F27B7/20Y02P40/126Y02P40/145
    • [PROBLEMS] To effectively utilize coal ash while lowering the concentration of mercury in a gas discharged from a cement kiln. [MEANS FOR SOLVING PROBLEMS] Coal ash from a thermal power plant or the like is received by a system for producing cement. The received coal ash is divided into ash and unburnt carbon. The ash thus divided is utilized as a material for cement in the system for producing cement, while the unburnt carbon thus divided is utilized in the system for producing cement depending on the concentration of mercury in a gas discharged from a cement kiln of the system for producing cement. In the case where gags discharged from the cement kiln of the system for producing cement contains mercury at a high concentration, it is possible that the unburnt carbon in the coal ash, which contains mercury localized therein, is not fed into the system for producing cement but processed outside the system for producing cement or the unburnt carbon is fed in a controlled amount into the system for producing cement. Mercury is removed form the thus separated unburnt carbon and the unburnt carbon, from which mercury has been removed, can be used as a fuel in the system for producing cement.
    • [问题]为了有效利用煤灰,同时降低从水泥窑排出的气体中的汞浓度。 解决问题的方法来自火力发电厂等的煤灰由用于生产水泥的系统接收。 接收的煤灰分为灰分和未燃碳。 这样分配的灰被用作用于生产水泥的系统中的水泥的材料,而未分配的未燃碳被用于生产水泥的系统中,这取决于从系统的水泥窑排出的气体中的汞浓度 生产水泥。 在从水泥制造用水泥窑排出的水泥含有高浓度的汞的情况下,将含有汞的煤灰中的未燃烧炭不可能进入生产水泥的系统 但是在用于生产水泥的系统外加工,或者将未燃碳以受控的量进料到用于生产水泥的系统中。 从这样分离的未燃碳去除汞,并且从其中除去汞的未燃碳可用作生产水泥的系统中的燃料。