A strip zinc liquid hydraulic suspension hot-dip galvanizing system

Abstract

The invention discloses a strip steel galvanizing zinc hydraulic suspension hot galvanizing system. Strip steel is involved from two inlet stabilizing rollers, enters a thermal insulating shied via ahorizontal narrow slit on the inlet side of the thermal insulating shied, sequentially penetrates through the slit between an upper galvanizing zinc spraying plate and a lower galvanizing zinc spraying plate, the slit between a scraper blade and a support spray plate and the slit between two air knives, penetrates out of the thermal insulating shield through the horizontal slit at the outlet of the thermal insulating shield and is finally discharged out via an outlet stabilizing roller. According to the invention, the traditional hot galvanizing system is creatively innovated from the principle, a traditional sinking roller is eliminated and galvanizing is carried out by adopting the manner without the sinking roller, so that the principle defect of the traditional hot galvanizing manner can be avoided; galvanizing zinc of hot galvanizing is provided in a circulating manner, so that the purpose that zinc slag does not exist in the zinc pot is realized, manpower consumption is effectively lowered and the production cost is reduced; and with adoption of the strip steel galvanizing zinc hydraulic suspension hot galvanizing system, the surface quality of the strip steel can be effectively guaranteed, the surface scratching rate and the rejection rate of coiled strip steel are remarkably reduced to increase the yield.

Description

technical field [0001] The invention relates to a hot-dip galvanizing system, in particular to a strip steel zinc liquid hydraulic suspension hot-dip galvanizing system, which belongs to the technical field of metallurgical equipment. Background technique [0002] Hot-dip galvanized sheet is a large amount of sheet and strip products. Traditional hot-dip galvanized products are mainly carried out by using a zinc pot, in which a sinking roller is set in the zinc pot, and the strip steel is dipped into the zinc pot by the sinking roll and removed from the zinc pot. In order to achieve the purpose of galvanizing the surface of the strip steel, this traditional method requires regular cleaning of the zinc pot and the shutdown of the production line, which consumes a lot of manpower and material resources. The zinc slag generated in the pot is very easy to adsorb on the surface of the strip and scratch the surface of the strip; in addition, the sinking roll set in the zinc pot in...

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Problems solved by technology

[0002] Hot-dip galvanized sheet is a large amount of sheet and strip products. Traditional hot-dip galvanized products are mainly carried out by using zinc pots, in which sinking rolls are set in the zinc pots, and the strip steel is immersed in the zinc pot by using the sinking rolls and removed from the zinc pot. In this way, the surface of the strip steel can be galvanized, but this traditional method needs to regularly clean the zinc pot, requires the production line to be shut down, and then consumes a lot of manpower and material resources for cleaning, and the zinc The zinc slag generated in the pot is very easy to adsorb on the surface of the strip and scratch the surface of the strip; in addition, the sinking roll set in the zinc pot in the traditional production process is a necessary key component, but the existence of the sinking roll has a great impact on the surface of the strip. Roughness and final quality have a great impact. Once the process parameters are not set properly, production accidents such as scratches are very likely to occur, which will eventually lead to the serious consequences of scrapping the entire strip

[0003] To sum up, the traditional zinc pot has many principle defects in the process and equipment. Although a large number of improved researches have been carried out on the above-mentioned traditional process in recent years, the effect is minimal because the principle process has not changed. Therefore, It is necessary to study the hot-dip galvanizing system in principle in order to fundamentally solve the above technical problems

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