Multi-channel industrial flue gas desulfurization, dust removal, carbon monoxide removal and denitration coupling device
An industrial flue gas, desulfurization and dust removal technology, which is applied in gas treatment, air quality improvement, chemical instruments and methods, etc., can solve problems such as high resistance, large gas flow resistance, and air leakage, so as to reduce equipment air leakage, reduce system resistance, The effect of uniform air distribution
Pending Publication Date: 2021-03-12
中钢集团天澄环保科技股份有限公司
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Problems solved by technology
[0004] First, the process is long. The desulfurization tower + dust collector + SCR denitrification equipment is arranged in series in the form of "candied haws" and occupies a large area. The connecting flues between each equipment are arranged in twists and turns, and the gas flow resistance is large.
[0005] Second, when the air volume is large, the air flow distribution is not easy to be uniform, and the processing air volume of each filter unit of the dust collector varies greatly.
[0006] Third, the traditional bag filter has complex structure, high resistance and serious air leakage
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[0035] The present invention will be further described below in conjunction with the accompanying drawings.
[0036] Such as figure 1 , figure 2 , a multi-channel industrial flue gas desulfurization, dust removal, carbon monoxide and denitrification coupling device, the device is composed of N+1 channels, arranged in parallel, and each channel is followed by a flue gas inlet valve 1 and a desulfurization unit 2 from the flue gas inlet to the outlet , bag dust removal unit 3, CO catalytic synergy SCR denitrification unit 4;
[0037] The desulfurization unit 2 includes an injection device 2a, a delivery pipeline 2b and a fan 2c;
[0038] The bag-type dust removal unit 3 includes an inlet horn 3a, an air distribution device 3b, an ash hopper 3c, a middle box 3d, an upper box 3e, a filter bag and a bag cage 3f, and a pulse jet cleaning device 3g;
[0039] The CO catalytic synergistic SCR denitration unit 4 includes an ammonia injection device 4a, an inlet deflector 4b, a recti...
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The invention discloses a multi-channel industrial flue gas desulfurization, dust removal, carbon monoxide removal and denitration coupling device. The device is composed of N + 1 channels which are arranged in parallel, and each channel is sequentially provided with a flue gas inlet valve (1), a desulfurization unit (2), a bag type dust removal unit (3) and a CO catalysis and SCR denitration unit(4) from a flue gas inlet to a flue gas outlet; a flue gas outlet valve (5) is arranged on the purified flue gas outlet pipeline; the desulfurization unit (2) comprises an injection device (2a), a conveying pipeline (2b) and a fan (2c); and the smoke flows in a square shape. Desulfurization, dust removal, carbon monoxide removal and denitration are completed in the same device in a coupled mode,and SO2, particles, CO and NOx are co-processed; the device has the characteristics of short air flow path, uniform air flow distribution, low device resistance, low operation energy consumption, highpurification efficiency, capability of realizing an online maintenance function and the like.
Description
technical field [0001] The invention relates to a collaborative purification technology for various pollutants such as sulfur dioxide, dust, carbon monoxide, and nitrogen oxides in industrial kiln flue gas, which belongs to the field of environmental protection and air pollution control; in particular, it relates to a multi-channel industrial flue gas desulfurization, dust removal, and carbon monoxide removal Denitrification coupling device. Background technique [0002] The common multi-pollutant purification process of industrial kiln flue gas is: after dry or semi-dry flue gas desulfurization, it enters the low-pressure pulse bag filter to remove particulate matter, and then enters SCR denitrification. [0003] The main problems of the traditional flue gas dedusting, desulfurization and denitrification process are as follows. [0004] First, the process is long. The desulfurization tower + dust collector + SCR denitrification equipment are arranged in series in the form ...
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IPC IPC(8): B01D53/83B01D53/86B01D53/62B01D53/50B01D53/56
CPCB01D46/023B01D53/508B01D53/8631B01D53/864B01D2258/0283Y02A50/20
Inventor 余建华吴春领李钧徐怀兵张立娟赵金怀闫金洲陈立姚群
Owner 中钢集团天澄环保科技股份有限公司