Liquid distribution device of tail gas absorption tower
Technology of a liquid distribution device and tail gas absorption tower
Inactive Publication Date: 2015-01-28
CHONGQING CHANGFENG CHEM IND
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Problems solved by technology
Generally, when the spray liquid of a packed tower flows downward along the packing layer, it tends to flow toward the tower wall, resulting in an increase in the wall flow and a decrease in the flow rate of the main body of the packing, which ultimately affects the uniformity of the fluid distribution along the cross-section of the tower. The actual production process There is a serious wall flow effect in the middle, which reduces the absorption rate of the tower
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[0014] combine figure 1 and figure 2 As shown, a tail gas absorption tower liquid distribution device includes a tower body 1 and a liquid distribution plate 2, wherein a plurality of liquid distribution plates 2 are arranged in the tower body 1, and the distance between two adjacent liquid distribution plates 2 is 2m. There is also a distribution cone 3 with a vertical section in the shape of a truncated cone, and the top is large and the bottom is small. The second liquid distribution plate 2 from top to bottom in the tower body 1 is equipped with a distribution cone 3 located above the corresponding liquid distribution plate. , The tower body 1 is provided with a mounting platform that cooperates with the inclined surface of the distribution cone 3 circumferential surface.
[0015] Such as figure 2 and 3 , the lower edge of the distributing cone 3 is raised upwards to form an annular groove 31 . In this way, the absorption liquid can avoid directly washing the liquid ...
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The invention belongs to the field of chemical or biological purification of waste gases and particularly relates to a liquid distribution device of a tail gas absorption tower. The liquid distribution device comprises a tower body and liquid distribution discs, wherein the tower body is internally provided with the plurality of liquid distribution discs; the distance between every two adjacent liquid distribution discs is less than 2.5m; the tower body is internally provided with distribution cones which have frustum-shape vertical sections and have large tops and small bottoms; the tower body is internally provided with the distribution cone located above the corresponding liquid distribution disc behind the first liquid distribution disc from top to bottom; and the tower body is internally provided with mounting platforms which are matched with the inclined planes of the peripheral surfaces of the distribution cones. By virtue of the liquid distribution device of the tail gas absorption tower, the influences caused by wall flow effects can be weakened so that the absorptivity is improved.
Description
technical field [0001] The invention belongs to the field of chemical or biological purification of waste gas, and in particular relates to a liquid distribution device for a tail gas absorption tower. Background technique [0002] The white carbon black production device mainly uses chlorosilane to carry out high-temperature hydrolysis reaction in the hydrogen-oxygen flame, and obtains silicon dioxide (silica) after gas-solid separation. During the reaction process, a large amount of residual tail gas is produced, which passes through the tail gas system The acid and alkali absorption tower is used for washing and neutralizing with liquid caustic soda, and then discharged into the atmosphere. In production, the low absorption rate of the absorption tower and the excessive pressure drop of the gas phase often lead to liquid flooding, tower flooding and tower blockage in the system. At the same time, the low acid absorption rate increases the consumption of liquid caustic sod...
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IPC IPC(8): B01D53/18
Inventor 李定山
Owner CHONGQING CHANGFENG CHEM IND