Single-tower double-circulation energy-saving white smoke elimination device

• Main Authors: WANG ZHENGRONG, WANG HUA, WANG YANG, ZHU HUI, LI WEI, SHEN JIANYONG, ZHANG NANJI, SHEN MINGZHONG, SUN LUCHANG
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2020
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention discloses a single-tower double-circulation energy-saving white smoke elimination device. According to the device, a desulfurization section and an absorption section are sequentially arranged in a shell of a flue gas purification device from bottom to top, a liquid storage unit is arranged between the desulfurization section and the absorption section, a first spraying layer is arranged between the absorption section and the top end of the shell, and a second spraying layer is arranged between the flue gas inlet of the desulfurization section and the liquid storage unit. Flue gas enters the absorption section from the desulfurization section, and is in countercurrent contact with a concentrated solution or clear water sprayed at the top of the absorption section. In the heating season, the concentrated solution absorbs water in the flue gas and becomes thin, latent heat is released in a precipitated moisture phase change process to heat the flue gas and saline solution,the heated solution is co