公开(公告)号：US06425976B1

公开(公告)日：2002-07-30

申请号：US09835734

申请日：2001-04-16

Applicant: Kent K Sandquist ,  Anders Kullendorff

Inventor： Kent K Sandquist ,  Anders Kullendorff

IPC: D21C1112

CPC classification number: F23L7/007 ,  D21C11/125 ,  F23C2201/101 ,  F23G7/04 ,  F23L7/00 ,  F23L9/00 ,  F23L2900/07005 ,  Y02E20/344

Abstract: The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black liquor provided in the boiler above the lower furnace, and a number of combustion air levels, whereby the invention incorporates adding oxygen enriched air to the combustion air or directly into the lower furnace at at least one air level underneath the liquor sprayers for the purpose of creating the best possible reducing conditions in the lower furnace, redistributing from the lower furnace combustion air not needed therein following the addition of oxygen enriched air, thereby significantly reducing upward gas velocity underneath the black liquor sprayers, and introducing the redistributed combustion air in the upper furnace, thereby creating the reducing conditions and a controlled temperature in the lower furnace for emission control.

Abstract translation: 本发明涉及一种回收锅炉中黑液气化的方法，该方法具有下部称为下部炉的下部，称为上部炉的上部，用于引入黑液的黑液喷雾器 锅炉在较低的炉子上方以及多个燃烧空气水平，由此本发明包括在燃烧空气中添加富氧空气或者在酒精喷雾器下方的至少一个空气水平处直接进入下炉，以创造最佳的 在下炉中可能的还原条件，在加入富氧空气之后，从其中不需要的低炉燃烧空气重新分配，从而显着减少黑液喷雾器下方的向上气体速度，并将再分布的燃烧空气引入上炉中 在下炉中产生还原条件和控制温度，用于排放控制 ol。

公开(公告)号：US06228214B1

公开(公告)日：2001-05-08

申请号：US09417171

申请日：1999-10-12

Applicant: Kent K Sandquist ,  Anders Kullendorff

Inventor： Kent K Sandquist ,  Anders Kullendorff

IPC: D21C1112

CPC classification number: F23L7/007 ,  D21C11/125 ,  F23C2201/101 ,  F23G7/04 ,  F23L7/00 ,  F23L9/00 ,  F23L2900/07005 ,  Y02E20/344

Abstract: The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black liquor provided in the boiler above the lower furnace, and a number of combustion air levels, whereby the invention incorporates adding oxygen enriched air to the combustion air or directly into the lower furnace at at least one air level underneath the liquor sprayers for the purpose of creating the best possible reducing conditions in the lower furnace, redistributing from the lower furnace combustion air not needed therein following the addition of oxygen enriched air, thereby significantly reducing upward gas velocity underneath the black liquor sprayers, and introducing the redistributed combustion air in the upper furnace, thereby creating the reducing conditions and a controlled temperature in the lower furnace for emission control.

Abstract translation: 本发明涉及一种回收锅炉中黑液气化的方法，该方法具有下部称为下部炉的下部，称为上部炉的上部，用于引入黑液的黑液喷雾器 锅炉在较低的炉子上方以及多个燃烧空气水平，由此本发明包括在燃烧空气中添加富氧空气或者在酒精喷雾器下方的至少一个空气水平处直接进入下炉，以创造最佳的 在下炉中可能的还原条件，在加入富氧空气之后，从其中不需要的低炉燃烧空气重新分配，从而显着减少黑液喷雾器下方的向上气体速度，并将再分布的燃烧空气引入上炉中 在下炉中产生还原条件和控制温度，用于排放控制 ol。