Movable air cooling device for decreasing temperature of heavy gauge strip steel

Abstract

The invention is a mobile cooling device for lowering the temperature of thick strip steel, which comprises guide rails, a mobile platform movable on the guide rails, a bellows fixed on the mobile platform, an air-cooling pipeline with one end sealed and connected to the bellows, an air-cooling fan and one end The air-cooled fan pipe is sealed and connected with the air-cooled fan; the air-cooled fan is fixed on the fan fixed platform, and the height of the fan fixed platform from the ground is not more than 10 meters; One end is at the same height and set opposite to each other. When the mobile platform moves from the transmission side to the operation side, the end of the air-cooling pipe away from the seal with the air box can be inserted into the fan pipe away from the end sealed with the air-cooler fan to achieve a sealed connection, and the bellows moves with the mobile platform. to both sides of the strip surface. The invention can effectively reduce the surface temperature of the thick gauge steel strip to meet the temperature required by the production process, ensure the stable operation of the production line, and reduce the generation of degraded products and waste products of the production line.

Description

technical field [0001] The invention relates to a mobile cooling device for reducing the temperature of thick-gauge strip steel, which belongs to the technical field of hot-dip galvanizing production equipment. Background technique [0002] The hot-dip galvanizing line is a continuous production line, including the entrance section, the entrance loop, the heating furnace, the process section, the exit loop and the exit section. The process section mainly carries out further process treatment on the galvanized strip steel, mainly including annealing, Reduction, galvanizing, tension straightening, passivation and other processes. The process flow of the process section is: Heating furnace heating reduction – zinc pot galvanizing – cooling tower air cooling – water quenching cooling – 1# hot air drying – tension straightening – passivation – 2# hot air drying, in which the height of the cooling tower is generally 43 meters about. According to the requirements of the productio...

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Problems solved by technology

[0003] When producing ≥3.0mm-thick strip steel in summer, due to the high outdoor ambient temperature, large strip thickness, high heat, and slow heat dissipation, when the strip steel passes through the zinc pot area and enters the air cooling section, the hot air is concentrated in the cooling zone. At the height of the tower, the temperature of the air sprayed by the cooling fan on the surfaces of both sides of the strip steel is high, which cannot effectively cool the strip steel. As a result, the temperature of the strip steel enters the water quenching cooling area at about 300°C, which is much higher. According to the

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