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公开(公告)号：US11617985B2
公开(公告)日：2023-04-04
申请号：US17779590
申请日：2020-03-05
发明人： Tingyu Zhu , Yang Yang , Wenqing Xu
摘要： Disclosed are a flue gas purification and waste heat utilization system and method. The system comprises a flue gas exhaust unit, a primary waste heat utilization unit, a primary flue gas purification unit, a secondary waste heat utilization unit and a secondary flue gas purification unit that are sequentially connected in a flue gas flow direction, wherein the primary flue gas purification unit is configured for removing NOx, large particles and CO in the flue gas, the secondary flue gas purification unit is configured for removing NOx and dioxin in the flue gas, an ammonia-spraying device is externally connected between the flue gas exhaust unit and the primary waste heat utilization unit, and the ammonia-spraying device is configured for injecting ammonia gas into the flue gas exhausted from the flue gas exhaust unit.
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公开(公告)号：US09656206B2
公开(公告)日：2017-05-23
申请号：US14892150
申请日：2013-10-23
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES , BEIJING ZSTC ENVIRONMENTAL ENGINEERING CO., LTD.
发明人： Tingyu Zhu , Wenqing Xu , Meng Ye , Ruizhuang Zhao
IPC分类号： B01J8/18 , B01J8/24 , B01D53/12 , B01D53/50 , B01D53/60 , B01D53/64 , B01D53/83 , B01D53/56 , B01D53/34 , B01D53/96 , B01D53/80 , B01D53/76
CPC分类号： B01D53/83 , B01D53/346 , B01D53/504 , B01D53/56 , B01D53/60 , B01D53/64 , B01D53/76 , B01D53/80 , B01D53/96 , B01D2251/104 , B01D2251/404 , B01D2257/302 , B01D2257/404 , B01D2257/602 , B01D2258/0291 , Y02A50/2344
摘要： A combined desulfuration, denitration, and demercuration apparatus and method using a semi-dry process in a circulating fluidized bed. The apparatus comprises a flue (2) and a circulating fluidized bed reaction column (8) connected in sequence, the flue (2) being connected to a bottom inlet of the circulating fluidized bed reaction column (8). The flue (2) is further connected to an ozone generation apparatus (1). The ozone distributor (1) feeds ozone in the flue (2) and sends oxidized flue gas into the circulating fluidized bed reaction column (8), so that the SO2, high-valence NOx, and Hg2+ contained in the flue gas are removed through reactions with a Ca-based absorbent under the effect of atomized water in the reaction column (8).
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公开(公告)号：US10507427B2
公开(公告)日：2019-12-17
申请号：US15121795
申请日：2014-04-01
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES , BEIJING ZSTC ENVIRONMENTAL ENGINEERING CO., LTD.
发明人： Tingyu Zhu , Wenqing Xu , Ruizhuang Zhao , Wen Liu
摘要： A flue ozone distributor applied in a low-temperature oxidation denitrification technology and an arrangement manner thereof is disclosed. The flue ozone distributor comprises a distribution main pipe, multiple distribution branch pipes, Venturi distributors and delta wings. The distribution branch pipes are led out from the distribution main pipe as parallel branches. The Venturi distributors are arranged with an equal space on the distribution branch pipes. The delta wings are arranged on one diffusion segment side of the Venturi distributors. The flue ozone distributor is arranged in the flue. The technology is used in the field of denitrification for flue gas of an industrial boiler/kiln by a low-temperature ozone oxidation method. The ozone-injecting direction is consistent with a flow direction of the flue gas. A soot deposit congestion problem does not exist. A turbulent flow behavior of the flue gas and ozone is strengthened. The oxidation efficiency is improved.
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公开(公告)号：US11780004B2
公开(公告)日：2023-10-10
申请号：US17943544
申请日：2022-09-13
发明人： Tingyu Zhu , Wenqing Xu , Chaoqun Li , Yang Yang
CPC分类号： B22F3/003 , B22F3/1007 , B22F2003/1042 , B22F2201/50 , B29C37/006
摘要： Disclosed is a trolley sealing device for a flue gas circulation system of a sintering machine, including a cover body covering a top surface of a sintering machine trolley. A top end of the cover body is provided with communication assemblies, and the communication assemblies communicate an inner cavity of the cover body with an outside environment; two ends of the inner cavity of the cover body are fixedly connected with vertical adjusting sections respectively, and a sealing device is arranged between the vertical adjusting sections and two ends of the top surface of the sintering machine trolley; and the cover body includes a plurality of frameworks; the plurality of frameworks are arranged above the sintering machine trolley, the communication assemblies are arranged on the frameworks, and skins are fixedly connected with the frameworks; and thermal insulation layers are arranged outside the skins.
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公开(公告)号：US10137408B2
公开(公告)日：2018-11-27
申请号：US15327699
申请日：2014-08-11
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES , BEIJING ZSTC ENVIRONMENTAL ENGINEERING CO., LTD.
发明人： Tingyu Zhu , Wenqing Xu , Ruizhuang Zhao , Meng Ye , Jin Xiong
摘要： Equipment and a method for circulating fluidized bed semidry simultaneous desulfurization and denitration of a sintering flue gas, comprising an ozone generator (2), a diluting blower (1), a mixing buffer tank (3), an ozone distributor (4), and a circulating fluidized bed (CFB) reactor tower (9). When evenly mixed by the mixing buffer tank (3), ozone is injected into a flue (4′) via the ozone distributor (4); and, an oxidized flue gas is introduced into the CFB reactor tower (9), where NOx, SO2, and SO3 in the flue gas are reacted with a Ca-based absorbent under the action of atomized water in the reactor tower, thus implementing simultaneous removal of SOx and NOx. This provides the characteristics of a simple system, great performance, small footprint, and inexpensive investments.
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