A device for activating flue gas mercury removal agent and its application
A flue gas and electrode activation technology, which is applied in the flue gas mercury removal agent activation device and the flue gas mercury emission control field, can solve the problems of increased usage, secondary pollution, and high activity, saving equipment costs and improving energy. , the effect of low cost
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Embodiment 1
[0032] This embodiment adopts a circular stainless steel cylinder with an internal diameter of 150mm as the main body of the mercury removal agent activation device, and its length is 2100mm. The length of the new activation electrode outer cylinder is 1800mm, and the length of the inner cylinder is 2400mm. The angular distance is 51mm, and the distance between the tip and the inner wall of the mercury removal activation device is 49.5mm. An air heating device is installed upstream of the mercury removal activation device, and the hot simulated flue gas ([NO]=200ppm, [Hg 0 ] = 20μg / m 3 , [SO 2 ]=1000ppm, the rest is hot air at 150℃ heated by electric furnace) at 40m 3 The flow rate of / h is continuously passed into the flue. The mercury removal agent uses gaseous hydrogen chloride, and the injection concentration is 10ppmv. First of all, without turning on the high-voltage power supply, by detecting the concentration of zero-valent mercury in the tail gas before and after ...
Embodiment 2
[0034] The device and method are the same as in Example 1, except that the mercury removal agent is changed to gaseous hydrogen bromide, and after hydrogen bromide is sprayed into the flue gas, the concentration in the simulated flue gas is 2ppmv. When no voltage is applied, the removal efficiency of zero-valent mercury in the flue gas is 10%; gradually adjust the voltage to 8.0kV, the removal efficiency of zero-valent mercury reaches about 80%; further adjust the voltage to 9.0kV, zero-valent mercury The removal efficiency of mercury reached about 95%.
Embodiment 3
[0036] Such as Figure 1~3 As shown, a device for activating a mercury removal agent for flue gas, the device includes a mercury removal agent storage tank 1, a flow controller 2, a mercury removal agent delivery pipe 3, a mercury removal agent activation device 4, a power connection line 7, High-voltage power supply 8, ground wire 9, the mercury removal agent storage tank 1 is connected to the mercury removal agent activation device 4 through the mercury removal agent delivery pipe 3, and a flow controller 2 is arranged on the mercury removal agent delivery pipe,
[0037]The mercury removal agent activating device 4 includes a cylindrical casing made of metal, an activation electrode 5 placed inside the casing, and activating device covers 6 provided on the top and bottom of the casing. The activation electrode 5 is composed of an electrode outer tube 10 and an electrode inner tube 11; the electrode outer tube 10 is made of metal, and its shape is a star-shaped columnar struc...
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