Load intelligent tracking type demister and method

Abstract

The invention relates to a load intelligent tracking type demister which comprises a plurality of independent demister units, a plugging device and a control system, the plugging device comprises at least one section adjusting device installed below the demister units, and an air charging device, air charging valves, an air extracting device and air extracting valves which are arranged outside a desulfurizing tower; the section adjusting device comprises a mounting seat and an air bag, the mounting seat is fixedly mounted at the lower part of a demister supporting beam, one end of the air bag is fixed in the mounting seat, and the other end can freely stretch through an opening of the mounting seat; the fixed end of the air bag communicates with the inflating device and the air extracting device through pipelines; and the air charging valves and the air extracting valve are in signal connection with the control system, and the control system controls opening and closing of the air charging valves and the air extracting valves according to flue gas amount information of the desulfurization tower, so that the sizes of the air bags of the section adjusting devices are correspondingly controlled to adjust the sectional area of the demister. The smoke circulation section of the demister can be matched with the load, the demisting efficiency is guaranteed, and the demister is convenient to use.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a load intelligent tracking type demister and a method thereof. Background technique [0002] Coal-fired power generation is the "cleanest" way to utilize coal resources in my country, and it is undoubtedly the most correct choice to concentrate the use of coal on thermal coal. According to the current technological development, the International Energy Agency has formulated the pollutant emission targets of coal-fired power plants for 2020 and 2030. The 2020 target: particulate matter is 1-2 mg / m 3 , NO x 30mg / m 3 , SO x 25mg / m 3 ;2030 target: soot <1mg / m 3 , NO x <10mg / m 3 , SO x <10mg / m 3 . [0003] Based on the above goals, some domestic coal-fired power plants have launched demonstration projects to explore the realization of particulate matter <1mg / m 3 , NO x <10mg / m 3 , SO x <10mg / m 3 The process route and equipment of ultra-ult...

AI Technical Summary

Problems solved by technology

[0007] 1) The environment inside the desulfurization tower is harsh, and the rotating mechanical structure leads to heavy maintenance workload

[0008] 2) Only some fixed passages can be adjusted, and they cannot be arranged under all demisters, which will cause local airflow in the tower to be evenly distributed, thereby affecting the efficiency of demisters and desulfurization towers

[0009] 3) When the diameter of the desulfurization tower is large, the deformation of the supporting beam of the mechanism is large, which increases the concentricity deviation of the rotating shaft, resulting in a high failure rate of the rotating baffle

[0010] 4) Only the section of the fixed area can be blocked

[0011] 5) The thick mechanical baffle and its supporting structure increase the load-bearing load of the demister support beam, and the specification of the demister support beam needs to be increased, which greatly increases the cost

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