CO boiler having ash removal function

Abstract

The invention discloses a CO boiler having the ash removal function. The CO boiler having the ash removal function comprises a first vertical flue, a horizontal flue and a second vertical flue, wherein ash baffles are arranged at the connection position between the first vertical flue and the horizontal flue, an ash storage bin is arranged at the position, flush with the lower edge of the lowest ash baffle, of the inner side of the first vertical flue, the ash baffles are of the structure that multiple layers of baffles are arranged in a staggered mode, each ash baffle is arranged in an inclined mode, and the outer end of each ash baffle is higher than the inner end of the ash baffle. According to the CO boiler having the ash removal function, the ash baffles arranged in the CO boiler can remove most of smoke dust contained in smoke and also play a role in rectifying the smoke, so that the smoke is rectified into the stable horizontal laminar flow state, the smoke evenly passes through steam drums, and the heat exchange efficiency of the boiler is high. The CO boiler having the ash removal function can solve the problem of equipment wear and abrasion caused by the smoke dust to the maximum extent, optimize the smoke processing technology, reduce energy consumption and reduce investment.

Description

technical field

[0001] The invention relates to a treatment device for catalytic cracking (FCC) regeneration flue gas of an oil refinery, in particular to a selective catalytic reduction SCR denitrification process device for the FCC regeneration flue gas of a refinery. Background technique

[0002] Nitrogen oxides (NOx) are one of the main sources of air pollution. Nitrogen oxides include compounds such as nitrous oxide (N 2 O), nitric oxide (NO), nitrogen dioxide (NO 2 ), nitrogen trioxide (N 2 o 3 ), dinitrogen tetroxide (N 2 o 4 ) and dinitrogen pentoxide (N 2 o 5 )Wait. Except for nitrogen dioxide, other nitrogen oxides are extremely unstable, and turn into nitrogen dioxide and nitric oxide when exposed to light, humidity or heat, and nitrogen monoxide turns into nitrogen dioxide. Therefore, exposure to several gas mixtures in the occupational environment is often called gunpowder (gas), mainly nitric oxide and nitrogen dioxide, and nitrogen dioxide is the main...

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