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Improved SDA semi-dry desulfurization tower

A semi-dry desulfurization and desulfurization tower technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as high investment and operating costs, equipment corrosion, and large equipment, and achieve strong adaptability to working conditions. , small pressure loss, no desulfurization blind area effect

Pending Publication Date: 2019-03-29
JIANGSU CTIEC ENVIRONMENTAL PROTECTION RES INST
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Problems solved by technology

Although the limestone-gypsum method has high desulfurization efficiency (>90%), fast reaction speed, and wide application range, there are still common problems in the following aspects: (1) The product is liquid or sludge, which is difficult to handle and has a great impact on equipment. The corrosion is also serious; (2) high energy consumption, large area, high investment and operating costs; (3) complex system, large equipment, generally suitable for coal-fired power plants

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  • Improved SDA semi-dry desulfurization tower
  • Improved SDA semi-dry desulfurization tower
  • Improved SDA semi-dry desulfurization tower

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Embodiment Construction

[0020] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0021] see figure 1 and 2 , an improved SDA semi-dry desulfurization tower of the present invention, comprising a desulfurization tower shell 6 and a desulfurizing agent supply mechanism, the bottom of the desulfurization tower shell 6 is connected with a conical ash hopper 10 with a chamfer of 60°, the desulfurization tower A rotary atomizer 7 and a regular hexagonal smoke distributor 4 are respectively installed at the top and bottom of the housing 6 .

[0022] The bottom of the regular hexagonal flue gas distributor 4 is connected to the flue gas inlet pipe 1 through the flue gas conveying pipeline. The flue gas conveying pipeline includes a vertical pipe 3 and a 90° elbow 2, and the vertical pipe 3 is fixed by a steel structure bracket 3-1 In the tapered ash hopper 10, its top communicates with the middle part of the regular hexagon...

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Abstract

The invention discloses an improved SDA semi-dry desulfurization tower. The desulfurization tower comprises a desulfurization tower shell and a desulfurizer supplying mechanism; a conical ash bucket with a chamfer of 60 degrees is connected to the bottom of the desulfurization tower shell; a rotary atomizer and a regular-hexagon flue gas distributor are arranged at the top end and the bottom end of the interior of the desulfurization tower shell corresponding; the bottom of the regular-hexagon flue gas distributor is connected to a flue gas inlet pipeline through a flue gas conveying pipeline;the top of the rotary atomizer is connected to the desulfurizer supplying mechanism through a pipeline; and the desulfurizer supplying mechanism comprises a water tank, a desulfurizer storage tank, adesulfurizer dissolving tank and a desulfurizer slurry storage tank, wherein the desulfurizer storage tank, the desulfurizer dissolving tank and the desulfurizer slurry storage tank are sequentiallyconnected through pipelines. The desulfurization tower has the advantages that the distribution uniformity of flue gas in the desulfurization tower is better, and the contact reaction between the fluegas and a desulfurizer is more sufficient.

Description

technical field [0001] The invention belongs to the technical field of desulfurization equipment, and in particular relates to an improved SDA semi-dry desulfurization tower. Background technique [0002] At present, there are dozens of desulfurization technologies at home and abroad. According to whether water is added to the desulfurization process and the dry and wet form of the desulfurization product, it is divided into three categories: wet desulfurization, semi-dry desulfurization and dry desulfurization. 80% of domestic large-scale desulfurization units The most common process is wet desulfurization technology, of which limestone-gypsum desulfurization is the most widely used. The main process is to use limestone or lime as the desulfurization absorbent. The absorption slurry in the tower contacts and mixes with the flue gas, and the sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry and the oxidized air blown in to be removed, and the des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/48
CPCB01D53/48B01D53/80B01D2251/404
Inventor 张志刚王彬吴开伟郑美玲
Owner JIANGSU CTIEC ENVIRONMENTAL PROTECTION RES INST
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