Reinforced desulphurization method and reinforced desulphurization system of desulphurizer for combustion system of circulating fluidized bed
A circulating fluidized bed and combustion system technology, which is applied to fluidized bed combustion equipment, combustion methods, and fuels burned in a molten state, can solve problems such as low desulfurization efficiency and low utilization efficiency of desulfurizers, reduce system complexity, and improve efficiency. Conducive to the effect of large-scale and low-pollution
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[0020] Referring to the attached picture:
[0021] A method for strengthening desulfurization by a desulfurizer in a circulating fluidized bed combustion system, comprising the following steps:
[0022] Step 1, the desulfurizer absorbs SO in the flue gas in the combustion chamber (3) 2 ;
[0023] Step 2, circulating ash separation: the unreacted CaO in the circulating ash is carried by the flue gas into the gas-solid separator (4) for circulating ash separation;
[0024] Step 3, distribution of circulating ash: After separation, the circulating ash falls into the feeder (6), a part of the circulating ash in the feeder (6) is directly sent back to the combustion chamber, and the other part enters the activation regeneration chamber (8);
[0025] Step 4, recycling ash regeneration, pass water vapor and carbon dioxide gas into the activation regeneration chamber (8), activate the unreacted CaO in the recycling ash, and generate Ca(OH) 2 , while passing a high concentration of ...
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