Material return anti-blocking device and smoke circulation semidry method desulfurization system with same

Abstract

The invention discloses a material return anti-blocking device comprising a crushing barrel and a crushing cutter. The crushing barrel is arranged between a material return ash bucket of a desulfurization bag-type dust collector, and a discharge hopper. The crushing cutter is rotationally arranged in the crushing barrel and is used for crushing block materials entering the crushing barrel. Throughthe material return anti-blocking device, block lime falling from the material return ash bucket of the desulfurization bag-type dust collector can be crushed, the completely crushed materials fall smoothly from the discharge hopper, normal passing of circulation nitration lime on a subsequent channel is ensured, a material return conveying channel of a smoke circulation semidry method desulfurization system is smooth, and normal operation of the desulfurization system is ensured. The invention further provides the smoke circulation semidry method desulfurization system.

Description

technical field [0001] The invention belongs to the technical field of sintering flue gas desulfurization, in particular, the invention relates to a material return anti-blocking device and a flue gas circulation semi-dry desulfurization system with the same. Background technique [0002] With the implementation of the new national "Environmental Protection Law", all domestic sintering and pelletizing production lines are equipped with flue gas desulfurization facilities, of which flue gas circulation semi-dry desulfurization facilities account for about 1 / 3. In the flue gas circulation semi-dry desulfurization system, in order to reduce the operating cost, it is necessary to return the digested lime for recycling. In the desulfurization process, affected by factors such as the amount of water added and temperature changes, the circulating digested lime is easy to form large pieces. If the large pieces are not disposed of in time, it will cause blockage of the circulation r...

AI Technical Summary

Problems solved by technology

In the desulfurization process, affected by factors such as the amount of water added and temperature changes, the circulating digested lime is easy to form large pieces

If the large pieces are not disposed of in time, it will cause blockage of the circulation return conveying channel, and it is not easy to clean, thus affecting the normal operation of the desulfurization system

In the prior art, there is no effective means to deal with large chunks of recycle digested lime

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