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Gas washing method and washing tower

A gas scrubbing and gas technology, which is applied in the fields of process equipment, environmental protection, and gas-liquid two-phase separation, can solve problems such as corrosion, aggravating haze, blockage, etc., and achieve the effect of improving cleaning effect and improving contact uniformity.

Inactive Publication Date: 2017-07-18
刘英聚
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common problem is that the flue gas with lye (fine droplets or fog) seriously leads to the following problems: 1. Increase lye and water consumption; 2. Cause corrosion of rear equipment (reheater, induced draft fan, etc.), Blockage; 3. The increase of flue gas humidity affects the diffusion and aggravates the smog, and the small lye droplets brought out lose water to form white ash to pollute the atmosphere and aggravate the smog

Method used

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  • Gas washing method and washing tower

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Embodiment Construction

[0017] See figure 1 , The washing section 3 adopts a single-tube structure, and a distribution pipe 8A, a distributor 9, and a baffle 10 are arranged inside, the lower part is connected to the gas inlet 4, and the upper end is connected to the settling section 2. The settling section 2 adopts an enlarged diameter structure, and a wire mesh 6 and a centrifugal separator 7 are arranged inside, the lower end is connected with the washing section 3 , and the upper end is connected with the gas outlet pipe 1 . The cross-sectional area ratio of the settling section 2 and the washing section 3 is 1.5-4.

[0018] See figure 2 , The equipment from top to bottom is the gas outlet pipe 1, the upper casing 2A (the interior is the settling section), the middle casing 2B (the interior is the washing section), and the lower casing 2C (the interior is the air intake section 13). The lower part of the multi-tubular washing section 3A is connected to the lower casing 2C through the support p...

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Abstract

The invention relates to a gas washing method and belongs to the technical fields of gas-liquid two-phase separation, environmental protection and process equipment. The method is used for solving the problems of high volume of liquid carried by gas and large negative effect. The method comprises the steps of feeding the gas, discharging the gas, feeding a washing solution and draining the washing solution. The method is characterized in that the two processes of gas washing and gas-liquid separation are designed, the gas washing and the inter-phase transferring are performed and completed under the turbulence state of higher gas flow rate, and then the settling, coalescence gas-liquid separation or additional centrifugal gas-liquid separation are performed at a lower flow rate. The invention also provides a turbulence type washing section, a settling section, a silk screen and a centrifugal separator used for realizing the method. The method is applied to the processes of dust cleaning and desulfuration of flue gas, cleaning and purification of exhaust gas, technical gas purification, and the like.

Description

technical field [0001] The invention belongs to the fields of gas-liquid two-phase separation, environmental protection and process equipment, and in particular relates to a gas washing method and a washing tower. Background technique [0002] The flue gas dust removal and desulfurization process usually adopts the lye washing method. The lye is sprayed (or even atomized) in the scrubber to fully mix and contact with the flue gas, to wash and adsorb the dust, and to remove the SO2 reaction. After the treatment, the flue gas Discharge from the top of the scrubber. At present, the common problem is that the flue gas with lye (fine droplets or fog) seriously leads to the following problems: 1. Increase lye and water consumption; 2. Cause corrosion of rear equipment (reheater, induced draft fan, etc.), Blockage; 3. The increase of flue gas humidity affects the diffusion and aggravates the smog, and the small lye droplets brought out lose water and form white ash to pollute the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00
CPCB01D50/10
Inventor 刘英聚
Owner 刘英聚
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