Porous partition spray equipped desulfurization tower

A desulfurization tower and spray layer technology, applied in the field of desulfurization towers, can solve problems such as uneven distribution of gas and liquid, and large resistance in the gas-liquid distribution area of ​​a single tower and double circulation, so as to reduce investment and operating costs, ensure smoothness, reduce The effect of energy consumption

Inactive Publication Date: 2015-10-07
浙江菲达环保科技股份有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a desulfurization tower with porous partition spraying, which can effectively solve the problems of too much resistance and uneven gas-liquid distribution in the existing single-tower double-circulation gas-liquid distribution area

Method used

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  • Porous partition spray equipped desulfurization tower
  • Porous partition spray equipped desulfurization tower

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Embodiment Construction

[0015] refer to figure 1 It is an embodiment of a desulfurization tower with porous partition spraying in the present invention. A desulfurization tower with porous partition spraying includes a tower body 1, and a flue gas inlet 2 is opened at the lower part of the tower body 1. There is a flue gas outlet 9 on the top of the tower body 1. The lower part of the tower body 1 is the first-level absorption zone, and the upper part of the tower body 1 is the second-level absorption zone. plate separated;

[0016] Such as figure 1 , figure 2 As shown, the porous air flow distribution plate includes a plate body 4, and a liquid leakage hole 20 is opened on the plate body 4, and an upward ventilation column 21 is also provided on the plate body, and each of the ventilation columns 21 is provided with an anti-two The slurry in the primary absorption zone enters the gas caps 5 in the primary absorption zone. The gas caps 5 are conical, and each of the gas caps 5 is fixed on the ven...

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Abstract

The invention discloses a porous partition spray equipped desulfurization tower. The lower part in the tower body is a first order absorption zone, the upper part in the tower body is a second order absorption zone, and a porous air flow distribution plate is disposed between the first order absorption zone and the second order absorption zone. The porous air flow distribution plate includes a plate body, the plate body is provided with liquid leakage holes, the plate body is also provided with upward ventilation columns, each ventilation column is equipped with an air cap, the tower body is externally provided with a tower outside slurry pool of the second order absorption zone, and the tower outside slurry pool is connected to the liquid leakage holes through a seal pipeline. According to the porous partition spray equipped desulfurization tower provided by the invention, the first order spray operates at a low Ph value, the second order spray operates at a high Ph value, the energy consumption of a circulating pump is greatly reduced, the porous air flow distribution plate is used for separating the two order absorption systems, the rising flue gas and falling slurry can pass separately, thus ensuring smooth flue gas rising and uniform flue gas distribution. The desulfurization tower is especially suitable for high sulfur coal flue gas desulfurization, can lower the investment and operation cost, and is applicable to current ultra-clean emission reconstruction of power plants.

Description

technical field [0001] The invention relates to a desulfurization tower with porous partition spraying. Background technique [0002] According to the No. 14 "Announcement on the Implementation of Special Emission Limits of Air Pollutants" issued by the Ministry of Environmental Protection on February 27, 2013, thermal power generating units located in the "Thirteen Districts and Ten Groups" must Reach the emission limit of sulfur dioxide 50mg / m3; some local environmental protection departments such as Zhejiang have begun to promote ultra-clean emission of sulfur dioxide below 35mg / m3. This means that whether it is a new power plant or an existing power plant, it will face a situation where the desulfurization efficiency is required to be greater than 98%. When the coal-fired sulfur content is low, corresponding to units with FGD inlet SO2 concentration lower than 3000mg / Nm3, in order to meet the net flue gas emission standard of 35mg / Nm3, the desulfurization efficiency is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50B01D47/06B01D53/96B01D50/00C01F11/46
Inventor 傅峡王少权周超炯郭柳成蔡铁城齐江杰张永边飞超雷慧慧
Owner 浙江菲达环保科技股份有限公司
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