SNCR denitration system of circulating fluidized bed boiler based on flow-state reconstruction

A circulating fluidized bed and fluid state reconstruction technology, applied in chemical instruments and methods, dispersed particle separation, lighting and heating equipment, etc., can solve the problems of low denitrification efficiency, high investment costs, high operating costs, etc., and achieve high denitrification efficiency , high level of automation and low operating costs

Inactive Publication Date: 2014-04-02
TAIYUAN BOILER GROUP +1
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AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problems of investment cost, high operation cost and low denitrification efficiency in current boiler denitrification, and provides a circulating fluidized bed boiler SNCR denitrification system based on fluid state reconstruction

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  • SNCR denitration system of circulating fluidized bed boiler based on flow-state reconstruction

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Embodiment 1

[0009] like figure 1 As shown, a circulating fluidized bed boiler SNCR denitrification system based on fluid state reconstruction includes a circulating fluidized bed boiler furnace 6 and a circulating fluidized bed boiler separator 7, which also includes an ammonia discharge and storage system 1, Ammonia dilution water delivery system 2, mixing distribution system 3, injection system 4 and test system 5, described ammonia discharge and storage system 1 is composed of ammonia discharge pump 8 and ammonia storage tank 9, ammonia passes through pipeline 10 and ammonia discharge pump 8 is transported from the tank truck 11 to the ammonia water storage tank 9 for storage; the ammonia water dilution water delivery system 2 is composed of an ammonia water delivery pump 12 and a dilution water delivery pump 13, and the ammonia water delivery pump 12 is connected with the ammonia water through the pipeline 10 The storage tanks 9 are connected, and the dilution water delivery pump 13 i...

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Abstract

The invention belongs to the technical field of SNCR (Selective Non-Catalytic Reduction) denitration devices of circulating fluidized bed boiler equipment and particularly relates to an SNCR denitration system of a circulating fluidized bed boiler based on flow-state reconstruction. The SNCR denitration system mainly solves the problems of high investment cost and running cost and low denitration efficiency existed in the denitration of the existing boiler. The technical scheme is that the SNCR denitration system comprises a circulating fluidized bed boiler hearth and a circulating fluidized bed boiler separator, as well as an ammonia water unloading and storing system, an ammonia water diluted water delivery system, a mixing and distributing system, a spray injection system and a test system; ammonia water is delivered from a tank wagon to an ammonia water storage tank through a pipeline and an ammonia unloading pump for storing; the test system belongs to a CEMS (Continuous Emission Monitoring System) test system, and an input end of the CEMS test system is connected with the circulating fluidized bed boiler separator. The SNCR denitration system has the advantages of low cost and good denitration effect.

Description

technical field [0001] The invention belongs to the technical field of SNCR denitrification devices for circulating fluidized bed boiler equipment, and in particular relates to a circulating fluidized bed boiler SNCR denitrification system based on fluid state reconstruction. Background technique [0002] With the promulgation and implementation of the national "Emission Standard of Air Pollutants for Thermal Power Plants" GB13223-2011, it is required that the emissions of soot, sulfur dioxide, nitrogen oxides, mercury and their compounds from coal-fired boilers must reach the limit value. For nitrogen oxide emissions, the conventional denitrification system is only for the single removal of boiler emissions, and does not start from the source boiler where the pollution source is generated. There are problems of high investment costs, high operating costs, and low denitrification efficiency. Contents of the invention [0003] The invention mainly aims at the problems of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/79B01D53/56F23J15/04
Inventor 张建春刘爱成白昌先牛建斌郝建仁朱俊平田艳周帅樊广强王晓炜
Owner TAIYUAN BOILER GROUP
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