Treatment device for ammonia-containing waste gas
A waste gas treatment device and ammonia technology, applied in the direction of ammonia compounds, air quality improvement, inorganic chemistry, etc., can solve the problems of secondary pollution, high treatment costs, high treatment costs, etc., and achieve the effect of increased absorption rate and low investment cost
Inactive Publication Date: 2012-07-04
JIANGSU RONGTAI CHEM
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Problems solved by technology
The latter decomposition method mainly decomposes ammonia into nitrogen and hydrogen through the action of a catalyst. However, the processing cost of this method is relatively high, and there are not many manufacturers using it.
It is understood that some companies currently use the second-stage spray absorption method of clear water to absorb waste ammonia gas, and then use denitrification technology to decompose ammonium. Due to the influence of weak biological treatment capacity and high treatment costs, the circulating absorption liquid cannot be fully effective. ground treatment, and after repeated circulation, the high-temperature exhaust gas heats up the absorption liquid, causing the ammonia gas dissolved in the absorption liquid to be decomposed, causing secondary pollution
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[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0014] Such as figure 1 As stated, the ammonia-containing waste gas treatment device of the present invention includes a condensing device, the condensing device is connected to the absorption tower, and an absorption liquid tank is provided at the lower part of the absorption tower, and a mother liquid circulation pump is provided on the absorption liquid tank. A mother liquor lifting pipeline is set between the mother liquor circulation pump and the upper part of the absorption tower, and a three-stage spraying device is arranged at the upper part of the absorption tower; an exhaust fan is arranged at the top of the absorption tower; at the bottom of the absorption liquid tank A lift pump is provided, and a magma pipeline is provided between the lift pump and the centrifuge; a feed pipeline and a water supply pipeline are provided on the absorption li...
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The invention relates to a treatment device for ammonia-containing waste gas. The treatment device for the ammonia-containing waste gas comprises a condensing device, wherein the condensing device is connected with an absorbing tower; an absorbing liquid tank is arranged on the inner lower part of the absorbing tower; a mother liquor circulating pump is arranged on the absorbing liquid tank; a mother liquor lifting pipeline is arranged between the mother liquor circulating pump and the upper part of the absorbing tower; and a three-stage spraying device is arranged on the inner upper part of the absorbing tower. The treatment device for the ammonia-containing waste gas has the advantages of good absorbing effect and low cost.
Description
technical field [0001] The invention relates to a waste gas recovery device, in particular to an ammonia gas recovery and reuse device. Background technique [0002] Ammonium polyphosphate is a kind of halogen-free and environment-friendly flame retardant with nitrogen and phosphorus structure. The product has high degree of polymerization, good thermal stability and low hygroscopicity. It is different from the flame retardant effect of expanding carbon layer in the halogen-containing flame retardant process to achieve heat insulation and air isolation, and has the characteristics of low smoke, low toxicity, and no molten droplets. It is an efficient inorganic and environmentally friendly flame retardant. It can be applied to plastics, polyester, rubber, various high-grade intumescent fireproof coatings and other fields. However, NH will be produced during the synthesis of the product 3 Volatile exhaust gas is easy to pollute the environment. If it is not treated and disch...
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IPC IPC(8): B01D53/78B01D53/58C01C1/245
CPCY02A50/20
Inventor 王燕
Owner JIANGSU RONGTAI CHEM