Sintering flue gas circulation combined desulfurization, dust removal and denitration integrated device
A technology for desulfurization, dust removal, and sintering flue gas, which is applied in chemical instruments and methods, dispersed particle separation, and dispersed particle filtration. The effect of solving inconsistent service life, saving maintenance costs and saving floor space
Pending Publication Date: 2021-02-05
BEIJING ZHTD ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology
[0007] In addition, as flue gas circulation technology is more and more used in the treatment of sintering flue gas pollutants, people pay more and more attention to this technology, but the current existing technology often adopts "flue gas circulation + desulfurization + dust
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[0027] The present invention will be described in detail below with reference to the accompanying drawings and examples. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art will recognize that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. Therefore, it is intended that the present invention includes such modifications and variations as come within the scope of the appended claims and their equivalents.
[0028] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", etc. are based on the orienta...
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The invention provides a sintering flue gas circulation combined desulfurization, dust removal and denitration integrated device, sintering flue gas refers to flue gas generated by a sintering machine, and the sintering machine is provided with a machine head main flue for discharging a first path of flue gas, a middle front section main flue for discharging a second path of flue gas and a middlerear section main flue for discharging a third path of flue gas. An included gas-gas heat exchanger is used for carrying out heat exchange on the second path of flue gas and the third path of flue gas. The first path of flue gas is mixed with the third path of flue gas subjected to heat exchange through the gas-gas heat exchanger, and then desulfurization treatment, dust removal treatment and denitration treatment are conducted through the desulfurization, dust removal and denitration device. The problem that the service life of a dust removal function and the service life of a denitration function are inconsistent is fundamentally solved, the service time is effectively prolonged, the maintenance cost is saved, resource recycling can be achieved through a reasonable mode, and pollution and waste are avoided.
Description
technical field [0001] The invention relates to the technical field of flue gas treatment, in particular to an integrated device for sintering flue gas circulation combined with desulfurization, dust removal and denitrification. Background technique [0002] The sintering process in the iron and steel industry emits a lot of pollutants. As an important way to reduce pollutant emissions, sintering flue gas circulation technology has proposed a variety of recycling processes at home and abroad, including LEEP, Eposit, EOS and Xinri Iron and other processes; domestic enterprises such as Ninggang, Shagang, Shougang, Baosteel, Yonggang, Qiangang, and Changgang have all implemented it. [0003] At present, the flue gas circulation technology of sintering machine is roughly divided into two technical schools: the flue gas internal circulation technology and the flue gas external circulation technology. [0004] Flue gas internal circulation technology features: 1. Considering the ...
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Login to View More IPC IPC(8): B01D46/02B01D53/50B01D53/86B01D53/90B01D53/56B01D53/34
CPCB01D46/02B01D53/346B01D53/50B01D53/8631B01D53/90
Inventor 呼广辉刘国锋刘晓敏李转丽
Owner BEIJING ZHTD ENVIRONMENTAL PROTECTION TECH CO LTD