公开(公告)号：US07845292B2

公开(公告)日：2010-12-07

申请号：US11548866

申请日：2006-10-12

申请人： J. David Martin ,  Christopher R. Smyrniotis ,  Kent W. Schulz ,  William H. Sun ,  Scott K. Bohlen ,  Glenn Brewer

发明人： J. David Martin ,  Christopher R. Smyrniotis ,  Kent W. Schulz ,  William H. Sun ,  Scott K. Bohlen ,  Glenn Brewer

IPC分类号： F23B90/00 ,  C10L10/04

CPC分类号： F23J7/00 ,  C02F1/70 ,  C02F5/083 ,  C02F2103/023 ,  C02F2303/08 ,  C10L10/04 ,  C23F11/182 ,  C23F14/02 ,  F22B37/025 ,  F23G5/48 ,  F28F19/00 ,  G01N17/006 ,  G01N17/02 ,  G01N17/04

摘要： A slag and corrosion control process is described. The process entails: identifying the location of at least one slagging problem area in a boiler; introducing a slag control chemical comprising magnesium oxide or hydroxide into combustion gases in a location identified as having a slagging problem; identifying the location of at least one corrosion problem area in a boiler; and introducing a corrosion control chemical comprising a sulfate salt, bisulfite salt, sulfuric acid, or sulfur into combustion gases in a location identified as having a corrosion problem. In operation, these slag deposits will be sufficiently friable to be removed by relatively moderate application of physical energy, thus saving time and reducing any damage to the tubes by the cleaning process. The slag deposits are less voluminous and less in weight and are removed quickly. It is an advantage of the invention that slag can be removed with little or no shut down of a boiler.

摘要翻译： 描述了炉渣和腐蚀控制过程。 该过程包括：确定锅炉中至少一个排渣问题区域的位置; 将包含氧化镁或氢氧化物的炉渣控制化学品引入被识别为具有结渣问题的位置的燃烧气体中; 识别锅炉中至少一个腐蚀问题区域的位置; 并将含有硫酸盐，亚硫酸氢盐，硫酸或硫的腐蚀控制化学品引入被鉴定为具有腐蚀问题的位置的燃烧气体中。 在操作中，这些渣沉积物将足够易碎，以通过相对适度地施加物理能量去除，从而通过清洁过程节省时间并减少对管的任何损坏。 渣沉积物体积较小，重量较轻，并迅速除去。 本发明的优点在于可以很少或不关闭锅炉来去除渣。