Oxidation system for semi-dry desulfurization waste ash

A technology of a semi-dry desulfurization and oxidation system, which is applied in the field of semi-dry desulfurization waste ash oxidation system, can solve the problems of high investment and operation cost, low oxidation efficiency, large energy consumption of desulfurization ash oxidation process, etc., and achieves the solution of oxidation efficiency. Low, high oxidation efficiency, the effect of improving oxidation efficiency

Pending Publication Date: 2018-09-28
BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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Problems solved by technology

[0003] In order to solve a series of problems in the existing desulfurization ash oxidation process, such as large energy consumption, low oxidation efficiency, high investment and operation costs, the present invention provides a semi-dry desulfurization waste ash oxidation system

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  • Oxidation system for semi-dry desulfurization waste ash

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Embodiment Construction

[0016] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0017] The existing desulfurization ash oxidation device of the present invention has problems such as high energy consumption, high investment and operating costs, and incomplete oxidation, and provides an economical, small footprint, outstanding oxidation effect, and low energy consumption. Semi-dry desulfurization waste Ash oxidation system.

[0018] Such as figure 1 As shown, the desulfurization waste ash inlet 1 in the system is set at the lower right side of the system outside the bottom 1 / 4; the desulfurization gypsum outlet 6 is located at the lower part of the desulfurization waste ash inlet 1, and the lower part of the system is the slurry area 2, the slurry area 2 Occupying 2 / 3 of the internal space of the system, the spray pipe 3 is arranged...

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Abstract

The invention provides an oxidation system for semi-dry desulfurization waste ash, and belongs to the technical field of environmental engineering. The system comprises a desulfurization waste ash inlet, a slurry area, a spray pipe, oxidant nozzles, spray guns and a desulfurization gypsum outlet; the desulfurization waste ash inlet is positioned at the right lower side of the outside of the systemand is positioned at the one-quarter part from the bottom; the slurry area is positioned at the lower part of the system and occupies two-thirds of the internal space of the system; the oxidant nozzles are positioned at the top of the inner side of the system for spraying an oxidant; the spray guns are used for providing an oxygen source, so that CaSO3 is oxidized to CaSO4, and meanwhile the spray guns are used to blow bottom sludge, so that the deposition phenomenon of the desulfurization waste ash at the bottom of the system is effectively prevented; and the bottom surface of the slurry area is designed as a slope, so that the deposition of the desulfurization waste ash at the bottom is effectively avoided. The system has the advantages of low investment, small land occupation, low energy consumption, simple operation, high oxidation efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a semi-dry desulfurization waste ash oxidation system. Background technique [0002] Wet desulfurization is currently widely used due to its low investment and operation costs and high desulfurization efficiency, but it has problems such as excessive dust concentration at the outlet, floating gypsum rain, and colored plumes; dry desulfurization has high investment and operation costs, and the outlet dust is very high. It is difficult to meet the ultra-clean emission requirements; the semi-dry method has low investment and operating costs, high desulfurization efficiency, low dust content at the outlet, and no colored plume, so it has become the first choice for desulfurization in recent years. Due to the large amount of desulfurization ash in the semi-dry method, the comprehensive utilization of desulfurization waste ash has also become a research hotspot in rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/46
CPCC01F11/46
Inventor 常冠钦陆钢
Owner BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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