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With the constant progress of science and technology, the electrolytic craft of aluminium is becoming riper, the output of the original aluminium in the whole world has very great growth. But at the same time the aluminium material is one of the biggest metal materials of environmental pollution in the production process. Produce a large amount of greenhouse effects gas CO2s and the whole Fluorine carbon (mainly CF4 and a small amount of C2F6 ) in the electrolytic production process of aluminium, distribute harmful gas (the hydrogen fluoride and sulfur dioxide ) , the dust (including Fluorine dust , alumina and carbon powder ) and such harmful substances as the pitch volatilize one (benzene combines An ), if these good-for-nothings are not dealt with effectively , will produce the serious environment and ecological problem, so, the environmental question of aluminium industry is until people's concern over the years.
In the electrolytic exhaust gas of aluminium, the hydrogen fluoride is the main pollutant , so it is to judge one of the important standards up to standard of in electrolytic discharge of aluminum smelter to measure the content that the exhaust gas hits the hydrogen fluoride. How reduce discharge of hydrogen fluoride become an important subject for research effectively.
At present, the electrolytic aluminium exhaust gas purification method divides the wet law and purifies, does the law to purify two kinds. Wet law purify secondary pollution and equipment to have water corrode issue , pass about operation for less than half a year at the same time, Na2SO4, circulation of liquid content crescent, influence result of purifying , low crystallization appear but cause pipeline person who stop up issue occasionally temperature have. Compare the wet law to purify, do the law and purify Al2O3 utilized and used electrolytically directly and absorb HF in the waste gas , have with high efficiency, without secondary pollution, it is simple to operate, operate the characteristic with low expenses, so widely used.
Originally design and do the research that the law purifies the equipment to the electrolytic aluminium exhaust gas , aim at getting the best parameter that the reactor is designed through carrying on the cool test in the laboratory first , then popularize industrial application. Through this subject, in order to expect to achieve and reduce the law of doing to purify necessary energy consumption , improve the purpose to do purification efficiency of the law, thus let the electrolytic aluminium industry go on a sustainable development path.

仅供参考:
Together with the continuous development of Science and Technology, the aluminum electrolysis craft becomes mature gradually, the whole world yield of the original aluminum contain very big growth.But the aluminum material is also one of the biggest metals materials in pollution of the environment at the same time in the production line.It produce a great deal of green house effect air CO2 and whole fluorines to turn the carbon( is mainly CF4 and the C2F6 of the jots) in the aluminum electrolysis production line, send forth the harmful air( the fluorine turns the hydrogen and sulphur dioxides), dust( contain the fluorine dust and oxidize the aluminum and the carbon powders) and asphalts to vaporize the harmful material of etc. of, these discard such as can not arrive the valid processing, will produce the serious environment and the ecosystem problems, therefore, the environment problem of the aluminum industry how much in the last years has been arrive the people's concern.
In the aluminum electrolysis smoke spirit, the fluorine turns the pollutant that the hydrogen is a most, so the examination smoke spirit in the content that the fluorine turn the hydrogen is to judge the electrolysis aluminum factory to exhaust whether reach the object one of the importance standard.How lowered the fluorine to turn the exhaust of hydrogen to become an important research topic effectively.
Currently, the electrolysis aluminum smoke spirit decontamination method divides the wet method decontamination, stem the method purify two kinds of.Wet method the decontamination exists the water to pollute two times to decay the problem with equipments, at the same time through the movement of about half a year, circulate the content of Na2SO4 within liquid is gradual to enlarge, influence decontamination result, temperature low hour have crystallize the analysis but result in piping stop to wait the problem.Compare the wet method decontamination, the Al2O3 that does the method decontamination to makes use of the electrolysis to use directly absorbs the HF within waste gas, have efficient and high, have no to pollute two times, operate in brief, circulate the low characteristics of expenses, so got the extensive application.
This design the dry to the electrolysis aluminum smoke spirit method purifies the research of the equipments, the aim is passing to carry on cold 态's experiment in the laboratory first, acquire the best parameter of the reactor design, then expand the industry applied.Pass this topic, attain to lower the stem method decontamination with the expectation need can consume, the exaltation stem method purifies the efficiency of purpose, thus let the electrolysis aluminum industry walk previous can keep on to develop the road.

Along with progress unremittingly of science and technology, the aluminum electrolysis craft be gradually maturing, the whole world yield of the original aluminum contain very big growth.But the aluminum material is also one of the biggest metals materials in pollution of the environment at the same time in the production line.It produce a great deal of green house effect air CO2 and whole fluorines to turn the carbon( is mainly CF4 and the C2F6 of the jots) in the aluminum electrolysis production line, send forth the harmful air( the fluorine turns the hydrogen and sulphur dioxides), dust( contain the fluorine dust and oxidize the aluminum and the carbon powders) and asphalts to vaporize the harmful material of etc. of, these discard such as can not arrive the valid processing, will produce the serious environment and the ecosystem problems, therefore, the environment problem of the aluminum industry how much in the last years has been arrive the people's concern.
In the aluminum electrolysis smoke spirit, the fluorine turns the pollutant that the hydrogen is a most, so the examination smoke spirit in the content that the fluorine turn the hydrogen is to judge the electrolysis aluminum factory to exhaust whether reach the object one of the importance standard.How lowered the fluorine to turn the exhaust of hydrogen to become an important research topic effectively.
Currently, the electrolysis aluminum smoke spirit decontamination method divides the wet method decontamination, stem the method purify two kinds of.Wet method the decontamination exists the water to pollute two times to decay the problem with equipments, at the same time through the movement of about half a year, circulate the content of Na2SO4 within liquid is gradual to enlarge, influence decontamination result, temperature low hour have crystallize the 析 but result in piping stop to wait the problem.Compare the wet method decontamination, the Al2O3 that does the method decontamination to makes use of the electrolysis to use directly absorbs the HF within waste gas, have efficient and high, have no to pollute two times, operate in brief, circulate the low characteristics of expenses, so got the extensive application.
This design the dry to the electrolysis aluminum smoke spirit method purifies the research of the equipments, the aim is passing to carry on cold 态's experiment in the laboratory first, acquire the best parameter of the reactor design, then expand the industry applied.Pass this topic, attain to lower the stem method decontamination with the expectation need can consume, the exaltation stem method purifies the efficiency of purpose, thus let the electrolysis aluminum industry walk previous can keep on to develop the road.

If you are not familiar to this profession, the topical glossary may use Chinese to replace, most importantly the sentence structure certainly needs to translate well □□along with the technical unceasing progress, the aluminum electrolysis craft is day by day mature, the world original aluminum output had the very big growth. But simultaneously the aluminum material also is in the production process one of environmental pollution biggest metal materials. In the aluminum electrolysis production process produces massive green-house gases CO2 and 全氟化碳 (mainly is CF4 and few C2F6), the sending out noxious gas (hydrogen fluoride and sulphur dioxide), the dust (contains fluorine dust, aluminum oxide and powdered carbon) and the asphalt volatility share (benzene and 芘) and so on the deleterious substance, these waste things-in-itself do not have to arrive effective processing, will produce the serious environment and the ecology question, therefore, the aluminum industry environment question how many year continuously will arrive people's attention. In the aluminum electrolysis haze, the hydrogen fluoride is the most main pollutant, therefore in the examination haze the hydrogen fluoride content is judges the electrolytic aluminium factory to discharge whether reaches one of sign important standards. How effectively reduced the hydrogen fluoride to discharge into an important research topic. At present, an electrolytic aluminium haze purification method minute aqueous method purifies, violates the law purifies two kinds. The aqueous method purification has the water two pollution and the equipment corrodes the question, simultaneously passes through half year about movement, in the circulation fluid Na2SO4 content gradually increases, affects the purification effect, the temperature is low when has the crystallization to separate out creates the pipeline to stop up and so on the question. Compares the aqueous method to purify, violates the law the purification directly in Al2O3 absorption waste gas HF which uses using the electrolysis, has the efficiency high, does not have two times of pollution, the operation is simple, operating cost low characteristic, therefore obtained the widespread application. This design violates the law to the electrolytic aluminium haze purifies the equipment the research, is for the purpose of through first carrying on the cold condition experiment in the laboratory, obtains the reactor design the best parameter, then promotes to the industrial application. Through this topic, expected achieved reduces violates the law the purification to need the energy consumption, the enhancement violates the law the purification efficiency goal, thus lets the electrolytic aluminium industry step onto a sustainable development path.