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Block Application Of Technology Start Minor Repairs Secondary Groove Mosaic Spoiler

Posted on:2017-04-18Degree:MasterType:Thesis
Country:ChinaCandidate:Z B HuFull Text:PDF
GTID:2321330542489641Subject:Metallurgical Engineering
Abstract/Summary:PDF Full Text Request
Current,electrolytic aluminum production capacity,electrolytic production of a general loss.In this case,the domestic electrolytic aluminum enterprises to reduce losses,to take a large area of non normal production.After discontinuation of a period of time,enterprise according to the recovery of the market,and gradually of these non normal shutdown of electrolyzers were the resumption of work.How to electrolyzer this batch of non normal shutdown of the maximum cost saving production became the focus of the work of enterprises.This batch of electrolytic tank because it is non normal shutdown,the cathode and the furnace caused no serious damage,repair secondary start-up has become the consensus of business,because doing so a groove can save overhaul costs 0.6 million yuan.But minor secondary start electrolytic tank has high voltage during normal production,the average in the 4.10v,high power consumption,average reached 13130kWh/t-Al unfavorable factors,long-term production,cost and expense of electricity for enterprises is very large.According to the minor two times to start electrolytic cell to smooth production,reduce working voltage are studied in detail.Study found that the mosaic resistance flow block technique,can slow down the velocity of liquid aluminum and in voltage stability under the same conditions,compared to the second start flat bottomed slot voltage can be reduced to 3.90V,energy fell to around 12620kWh/t-Al,tons of aluminum can be electricity savings of about 510kwh,electricity savings of about 296 yuan.A large area of non normal stop groove resumption of work take mosaic resistance flow block technology can save a large quantity of production costs,reduce the burden of production and operation of enterprises.
Keywords/Search Tags:Aluminum electrolysis, minor repair second start-up, Mosaic choke block, voltage, DC power consumption
PDF Full Text Request
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