Smoke exhaust air duct for recycling precious metal

• Main Authors: LI ZHAOJUN, GONG JIANHUA, YANG CHENGSEN, WANG ZHIGUO, GUO YANMIN, ZHANG ZHIGUANG, ZHANG HONGTAO, CUI LIHUA, ZHU BAOJUN, SONG HONGWANG, KONG LINGDONG, WANG DONGYANG, YANG ZHIFANG, WANG HAILEI, WANG SHUXIANG, CHEN HONGLIN, WANG CHENGLONG, LI DA, ZHANG BANGQIONG, CHEN LIANG, LU YANDONG, CHEN XIAOHUI, WANG TIANMING
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model relates to a smoke exhaust air duct for recycling precious metal. The smoke exhaust air duct comprises a first air inlet, a second air inlet and a third air inlet, the first air duct is communicated with the first air inlet, and a spoiler capable of being opened and closed is arranged in the first air duct; the extraction port is used for extracting or filling an adsorption material, the second air inlet and the second air outlet are respectively communicated with the pipe wall of the first air duct, the second air inlet is connected to the upstream of the spoiler through a second air duct, and the second air outlet is connected to the downstream of the spoiler through a third air duct. The second air inlet selectively communicates with the first air duct; and a flue gas buffer structure is formed at the upstream of the adsorption chamber on the first air duct. According to the scheme, the adsorption chamber fully adsorbs flue gas, precious metal in the flue gas is effectively filtered and r