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Flue gas treatment system of circulating fluidized bed boiler

A flue gas treatment system and circulating fluidized bed technology, applied in gas treatment, chemical instruments and methods, and separation of dispersed particles, can solve the problems of the flue gas treatment system, such as the need to improve the purification capacity and the inability to reduce nitrogen oxides, etc. Achieve the effect of improving the purification treatment capacity, increasing the contact area, and increasing the contact area

Pending Publication Date: 2021-11-05
温州宏泽热电股份有限公司
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Problems solved by technology

[0004] Regarding the related technologies mentioned above, the inventor believes that there are the following defects: currently, for the related flue gas treatment system, it still cannot completely reduce the nitrogen oxides in the flue gas to nitrogen and water vapor, and the related flue gas treatment system Purification capacity needs to be improved

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  • Flue gas treatment system of circulating fluidized bed boiler
  • Flue gas treatment system of circulating fluidized bed boiler

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Embodiment Construction

[0030] The following is attached Figure 1-2 The application is described in further detail.

[0031] The embodiment of the present application discloses the flue gas treatment system of the circulating fluidized bed boiler, referring to figure 1 and figure 2 , the flue gas treatment system of the circulating fluidized bed boiler includes a reduction boiler 1 , a reducing agent injection device 2 and a dust collector 3 . The side wall at the bottom of the reduction boiler 1 communicates with multiple sections of smoke inlet pipes 11 located at the same height, and the smoke inlet pipes 11 are used to communicate with the smoke exhaust pipe of the circulating fluidized bed boiler. The reducing agent injection device 2 includes a mixing tower 4 , a first spraying mechanism 5 , a second spraying mechanism 9 , a pressurized water pump 7 and a two-stage delivery pipe 6 . The mixing tower 4 is filled with a reducing agent used to reduce the nitrogen oxides in the flue gas of the...

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Abstract

The invention relates to the technical field of boiler environmental protection, in particular to a flue gas treatment system of a circulating fluidized bed boiler, the system comprises a reduction boiler, a reducing agent injection device and a dust remover. The side wall of the bottom of the reduction boiler is communicated with the exhaust pipe of the circulating fluidized bed boiler, the reducing agent injection device is used for spraying a reducing agent into the reduction boiler through the top of the reduction boiler, and the dust remover communicates with the exhaust end of the reduction boiler. The effect of improving the purification treatment capacity of the flue gas treatment system is achieved.

Description

technical field [0001] This application relates to the technical field of boiler environmental protection, in particular to a flue gas treatment system of a circulating fluidized bed boiler. Background technique [0002] The circulating fluidized bed boiler utilizes the circulating fluidized bed combustion technology, so that the air required for combustion enters the fluidized bed evenly through the air distribution plate at the bottom of the furnace, and maintains an appropriate airflow rising speed in the fluidized bed. Lift up and move up and down, forming a boiling shape, so that the mixing is very strong. The circulating fluidized bed boiler has the advantages of good fuel adaptability, high efficiency, and less pollution emissions. [0003] Even so, the flue gas discharged from the circulating fluidized bed boiler still needs to enter the flue gas treatment system for denitration and purification treatment, so as to reduce the nitrogen oxides in the flue gas to non-po...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/56B01D53/79
CPCB01D53/56B01D53/79B01D2258/0283
Inventor 张渤海符国强姚合群蒋德杰向志宏
Owner 温州宏泽热电股份有限公司
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