公开(公告)号：US3703919A

公开(公告)日：1972-11-28

申请号：US3703919D

申请日：1970-10-22

Applicant: COMBUSTION ENG

Inventor： OWENS VINCENT P ,  PROHAZKA GEORGE J

IPC: D21C11/10 ,  F23G7/04 ,  B01D1/16 ,  B01D1/14 ,  B01D1/22 ,  B01D47/00 ,  F22D1/00

CPC classification number: F23G7/04 ,  D21C11/103 ,  Y10S423/03

Abstract: A chemical recovery unit in which black liquor from a pulping process is burned including a direct contact evaporator for concentrating the black liquor prior to its introduction into a furnace. Preheated air is used as the heating medium in the direct contact evaporator. The moisture laden air leaving the evaporator is used as secondary combustion air in the furnace.

Abstract translation: 一种化学回收单元，其中来自制浆过程的黑液被燃烧，包括用于在将黑液引入炉中之前浓缩黑液的直接接触式蒸发器。 预热空气用作直接接触蒸发器中的加热介质。 离开蒸发器的潮湿空气用作炉中的二次燃烧空气。