Solid desulfuration incendiary agent for coal-burning boiler
A technology of coal-fired boilers and combustion agents, applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of low desulfurization efficiency, achieve full combustion, improve combustion efficiency, and increase the surface area of absorption
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Embodiment 1
[0055] Take the preparation of 64kg coal-fired boiler consolidated desulfurization combustion agent as an example:
[0056] raw material
quicklime
shale
rock salt
Weight (kg)
60
1
1
1
1
[0057] The above ingredients are crushed, and the particle size is controlled at 0.2-3.0 mm to prepare a desulfurizer.
[0058] In January 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was used for batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 6.5, and the boiler thermal efficiency is 99.96%. The average value of sulfur dioxide in flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the exhaust gas, and the content of sulfur dioxide in the flue gas was not detected, and 6% of coal was saved.
Embodiment 2
[0060] Take the preparation of 77kg coal-fired boiler consolidated desulfurization combustion agent as an example:
[0061] raw material
quicklime
calcium chloride
shale
rock salt
Weight (kg)
65
3
3
3
3
[0062] The above ingredients are crushed, and the particle size is controlled at 0.2-3.0 mm to prepare a desulfurizer.
[0063] In February 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was used for batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 6.8, and the boiler thermal efficiency is 99.72%. The average value of sulfur dioxide in the flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the flue gas emission. The content of sulfur dioxide in the flue gas was not detected, and 5% of coal was saved, and 7% of coal was saved.
Embodiment 3
[0065] Take the preparation of 127kg coal-fired boiler consolidated desulfurization combustion agent as an example:
[0066] raw material
quicklime
wollastonite
calcium chloride
shale
rock salt
Weight (kg)
95
8
6
10
8
[0067] The above ingredients are crushed, and the particle size is controlled at 0.5-2.5 mm to prepare a desulfurizer.
[0068] In March 2006, the 25t / h circulating fluidized bed of Wu'an thermal power plant was carried out batching trial combustion. The boiler load rate is 98%, the calcium-sulfur ratio is 5.6, and the boiler thermal efficiency is 98.86%. The average value of sulfur dioxide in flue gas before adding desulfurizer is 2500mg / Nm 3 , The monitoring center of the Environmental Protection Bureau of Hebei Province monitored the exhaust gas, and the content of sulfur dioxide in the flue gas was not detected, and 6% of coal was saved.
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