Liquid column jet type stack gas desulfurization

A jet type, desulfurization tower technology, applied in the field of flue gas purification and desulfurization, can solve the problems of difficult installation of jet branch pipe brackets, small slurry distribution area, affecting desulfurization efficiency, etc., to reduce erection difficulty, distribute evenly, and improve desulfurization efficiency. Effect

Active Publication Date: 2008-01-16
TSINGHUA UNIV +1
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Problems solved by technology

This requires that during the installation of the desulfurization tower slurry injection branch pipe, in order to ensure that the nozzles are on the same level, it is difficult to install the variable diameter slurry injection branch pipe bracket
In addition, the injection height of the liquid column in the tower determines the degree of slurry dispersion. If the injection height is too low, the slurry dispersion area will be small, resulting in insufficient contact between the flue gas and the slurry, which will affect the desulfurization efficiency; if the slurry injection is too high, the system will consume a lot of energy.

Method used

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  • Liquid column jet type stack gas desulfurization
  • Liquid column jet type stack gas desulfurization

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Embodiment Construction

[0015] Referring to Figures 1 to 4, the present invention includes a tower body 2, a flue gas inlet 1 connected to the middle of the tower body 2, a flue gas outlet 4 connected to the top of the tower body 2, and a double-layer defogger placed in the upper part of the tower body 2 3, a slurry collector 8 placed at the bottom of the tower body 2, a slurry circulation pump 6 connected to the slurry collector 8, and an injection pipe connected to the outlet of the slurry circulation pump 6 and placed below the flue gas inlet 1. The flue gas inlet 1 pipe and the horizontal cross-section of the tower body 2 are inclined upward at an angle of 5-10°. The injection pipe is composed of a plurality of square tubes 9 with evenly variable diameters from large to small and bidirectionally staggered. The upper and lower end surfaces of each tube 9 are trapezoidal, and the two sides of each tube 9 are rectangular. The large-diameter ends of the pipes 9 on all sides are connected in parallel ...

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Abstract

The invention relates to a liquid column jet flue gas desulfurization tower, belonging to the field of flue gas purification and desulfurization technology. Said invention includes tower body, flue gas inlet connected with middle of the tower body, flue gas outlet connected with top of the tower body, double-layer demister placed in the upper portion of tower body interior, slurry collector placed in the bottom portion of tower body interior, sturry circulating pump connected with slurry collector and jet pipe connected with outlet of slurry circulating pump and placed under the flue gas inlet. Said invention also provides the structure characteristics of said flue gas desulfurization tower and connection mode of above-mentioned all the component, also provides the working principle of said flue gas desulfurization tower.

Description

technical field [0001] The invention relates to a flue gas desulfurization tower, in particular to a liquid column injection type flue gas desulfurization tower, which belongs to the technical field of flue gas purification and desulfurization. technical background [0002] With the rapid development of social economy and the increase of energy demand year by year, the amount of industrial waste gas is increasing rapidly, especially the SO emitted by coal combustion. 2 Pollution is getting worse. In the face of severe environmental pressure, more and more attention has been paid to flue gas desulfurization technology. There are more than ten kinds of flue gas desulfurization technologies in the existing technology, among which wet lime and limestone flue gas desulfurization (Wet-FGD) technology is currently the most widely used. , the most effective desulfurization technology. As a Wet-FGD technology, liquid column injection flue gas desulfurization adopts the method of li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78
Inventor 赵旭东项光明姚强
Owner TSINGHUA UNIV
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