Method for rapidly replacing vertical coating rollers of galvanizing unit

Abstract

The invention discloses a method for rapidly replacing vertical coating rollers of a galvanizing unit. The method comprises the steps that the connecting state of old vertical coating rollers and equipment relevant to a production area is released; the old vertical coating rollers are transferred to a rapid transferring device of a safety area from the production area by a balance lifting device and a rapid hoisting device and then transferred to a hoisting platform to be hoisted out; novel vertical coating rollers are transferred to the safety area from the hoisting platform by the transferring device and transferred to the production area by the balance lifting device and the rapid hoisting device; and the novel vertical coating rollers are connected with the equipment relevant to the production area. According to the method, the coating rollers are transferred by the transferring device, the balance lifting device and the rapid hoisting device, pure-manpower carrying is avoided, not only is the labor intensity of operators reduced, but also the transferring duration is reduced by a large margin, and the duration needed for replacing one set of coating rollers is shortened to be about one hour from three hours in the past.

Description

technical field [0001] The invention relates to the technical field of galvanizing units, in particular to a quick replacement method for vertical coating rollers of a galvanizing unit. Background technique [0002] The galvanizing unit is an important production line of the cold rolling mill. Since the galvanized sheet will rust quickly in humid air, white rust mainly composed of basic zinc carbonate will be formed, which will not only affect the appearance of the galvanized sheet surface, but also give Later use will cause trouble. Therefore, in order to prevent the galvanized sheet from rusting during storage and transportation and prolong its service life, it is necessary to solve the anticorrosion problem of the hot-dip galvanized sheet without hindering the subsequent coating and processing. In order to enhance the anti-corrosion ability of the zinc layer on the surface of the galvanized sheet, passivation treatment is used in production to enhance the anti-corrosion ...

AI Technical Summary

Problems solved by technology

Therefore, the replacement time of the vertical coating roller directly affects the progress of the production line of the galvanizing unit

[0003] The existing vertical coating roller replacement method is generally to release the connection state between the vertical coating roller and the related equipment in the production area; lift the vertical coating roller to the safe storage area by manpower, and lift the new vertical coating roller manually Go to the production area for installation and commissioning. This process is mainly through manpower, generally requiring 6 people, not only labor-intensive, but also time-consuming. Generally, it takes about 3 hours to replace a set of vertical coating rollers, which seriously affects the production line of the galvanizing unit. production progress

[0004] To sum up, how to solve the problem of high labor intensity and long time consumption when changing the vertical coating roller has become a technical problem to be solved urgently by those skilled in the art

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