Composite, efficient and energy-saving ammonia process desulfurization tower
An ammonia-based desulfurization, high-efficiency and energy-saving technology is applied in the field of desulfurization towers and composite high-efficiency and energy-saving ammonia-based desulfurization towers. The effect of high utilization
Inactive Publication Date: 2014-12-10
ZHUJI JIEQIU ENVIRONMENTAL PROTECTION TECH
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Among them, various combustion boilers, especially thermal power plant boilers, have the characteristics of low concentration, large amount of flue gas, and many floating dusts, which are difficult to control.
[0003] Wet flue gas desulfurization has always been the main desulfurization method adopted by thermal power plants at home and abroad. For a long time, calcium desulfurization has occupied the main position of desulfurization process, but this method is a "disposable" process, and the accumulation of gypsum in its desulfurization product is easy to cause secondary pollution
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[0015] refer to figure 1 , figure 2 , image 3 , a composite high-efficiency energy-saving ammonia desulfurization tower of the present invention, comprising a pre-absorption tower 1 and a multi-section absorption tower 4, the pre-absorption tower 1 and the multi-section absorption tower 4 are connected through a first demister 15, and the pre-washing tower 1 The first tank body 11 is installed at the bottom, and the first spray pipe 12 is installed above the first tank body 11. The first tank body 11 is connected with the first spray pipe 12 through the third circulating pump 13. The pre-washing tower 1 The upper end is connected with a dust collector 14, and a smoke inlet 141 is provided on the dust collector 14. A centrifuge 5, an evaporation crystallizer 6 and an ammonium sulfate tank 7 are installed on the multi-stage absorption tower 4, and the absorption tower 4 is sequentially arranged from bottom to top. It consists of the second tank body 10, the first absorption ...
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The invention discloses a composite, efficient and energy-saving ammonia process desulfurization tower. The composite, efficient and energy-saving ammonia process desulfurization tower comprises a pre-absorption tower and a multi-section absorption tower, wherein the pre-absorption tower and the multi-section absorption tower are connected with each other by virtue of a first demister; a first tank body is mounted at the bottom of a prewashing tower; a first spraying pipe is mounted above the first tank body; the first tank body is connected with the first spraying pipe by virtue of a third circulating pump; the upper end of the prewashing tower is connected with a dust remover; a smoke inlet is formed in the dust remover; a centrifugal machine, an evaporating crystallizer and an ammonium sulfate tank are mounted on the multi-section absorption tower; the absorption tower sequentially comprises a second tank body, a first absorption section and a second absorption section from bottom to top. According to the composite, efficient and energy-saving ammonia desulfurization tower, the smoke can completely react with ammonia water; the utilization rate of an ammonia water absorbent is relatively high.
Description
【Technical field】 [0001] The invention relates to the technical field of desulfurization towers, in particular to the technical field of a composite high-efficiency and energy-saving ammonia method desulfurization tower. 【Background technique】 [0002] Sulfur dioxide is the most influential gaseous pollutant among air pollutants, which is extremely harmful to human body, environment and ecological system. With the increasingly stringent environmental protection requirements, S0 2 The issue of emissions is getting more and more attention. Sulfur dioxide mainly comes from the combustion process of fossil fuels such as coal and petroleum, as well as the flue gas emissions from the roasting and smelting of ores. Among them, various combustion boilers, especially thermal power plant boilers, have the characteristics of low concentration, large amount of flue gas, and many floating dusts, which are difficult to control. [0003] Wet flue gas desulfurization has always been the ...
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Inventor 杨利人
Owner ZHUJI JIEQIU ENVIRONMENTAL PROTECTION TECH