Hot galvanizing air knife body structure

Abstract

A hot galvanizing air knife body structure relates to the field of metallurgical equipment. The hot galvanizing air knife body structure comprises a tubular air knife body, an upper knife body support, a lower knife body support, an upper knife body, a lower knife body and two end face cover plates for sealing the ends of the air knife body, and the air knife body is provided with an opening extending in the length direction of the air knife body and a plurality of air inlet pipelines communicated with the interior of the air knife body. The upper knife body support and the lower knife body support are located on the two sides of the opening respectively and connected with the air knife body, and the upper knife body and the lower knife body are connected to the adjacent sides of the upper knife body support and the lower knife body support respectively and are configured to move in the direction close to each other or away from each other to adjust the air outlet gap. The upper cutter body and the lower cutter body are provided with an upper cutter body air inlet cambered surface and a lower cutter body air inlet cambered surface respectively, and an air uniformizing cavity communicated with the air outlet gap and the interior of the air cutter body is formed between the upper cutter body air inlet cambered surface and the lower cutter body air inlet cambered surface. According to the hot galvanizing air knife body structure, the size of the air outlet gap can be conveniently adjusted, the upper knife body and the lower knife body can be conveniently ground, and the cost is reduced.

Description

Technical field [0001] The present application relates to the field of metallurgical equipment, and in particular, there is a thermal-dip galvanized glass tool structure. Background technique [0002] In the steel continuous hot galvanized production line, it is necessary to use a blowout device (referred to as a gas knife) having a specific structure to produce a high-speed airflow, and the excess zinc solution that is excess zinc solution that is just out of the zinc pot is reversed back to the zinc pot. However, during the production process, since the air knife will be used for long-term use of the impurity in the zinc slag or gas, the gas flow is abnormal, which affects the normal production process. [0003] In order to control the quality of galvanized products, it is necessary to test the knife lip to be inspected. Generally, the upper handle is structural. After the die is worn, the dust is difficult, and the tool body is required to be replaced when it is severe, and pl...

AI Technical Summary

Problems solved by technology

However, in the production process, due to the continuous long-term use of the air knife, the zinc slag or impurities in the gas will wear the air knife lip, resulting in abnormal air flow and affecting the normal production process.

[0003] In order to control the quality of galvanized products, it is necessary to check and repair the knife lip frequently. Generally, the upper knife lip adopts a curved surface structure. After the knife lip is worn, it is difficult to grind. In serious cases, the knife body needs to be replaced as a whole. For air knives, the knife lip will undergo thermal strain due to structural design, and the gap between the knife lips needs to be adjusted periodically. However, when checking and adjusting existing air knives, the overall structure of the knife body needs to be dismantled, and it is difficult to restore the alignment of the upper and lower knife lips. Long lifting, adjustment, and installation cycles lead to high production costs

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