Method for passing aluminum bus through firewall in aluminium electrolysis workshop and structure

Abstract

The present invention discloses a method for passing an aluminum bus through a firewall in an aluminium electrolysis workshop and a structure. Firstly, epoxy resin glass cloth lamination plates 4 are used to block the inner and outer sides of a firewall 1, then a fireproof plate 5 is used to block the circle of a wire through hole 2, a bounding walls are built at the outer sides of the wire through hole 2 for enclosure, the walls are filled with sands, and the walls are covered by a reinforced concrete movable cover plate 8. The structure has good waterproof and insulating performance in high temperature and high wet environments, and a double-layer fireproof blocking effect is used to be better than a single-layer fireproof blocking effect. The bounding walls and cover plate structure are used, the later cover opening for maintenance is facilitated, and the effects of shielding rain and protecting people who passes the structure are achieved.

Description

technical field [0001] The invention relates to a method and a structure for an aluminum busbar passing through a firewall in an aluminum electrolysis workshop, and belongs to the technical field of busbar passing through a wall. Background technique [0002] The aluminum electrolysis workshop relies on multiple supporting rectifier units to deliver strong DC current to the workshop, and the aluminum busbars made of high-conductivity aluminum materials are generally used to transmit electric energy. According to the principle of nearby electric energy transmission, the rectifier unit is generally installed on the gable side of the electrolysis workshop, and the aluminum busbar enters the interior of the workshop from the gable side. According to the requirements of the "Code for Fire Protection of Building Design", the fire hazards of production are classified as Class C and D, and the fire distance between the two workshops with the fire resistance class of Class II must re...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the current land use range and various other reasons, it is difficult to meet the requirement of a fire separation distance of 10 meters. Therefore, when the fire separation distance cannot meet the requirements of the fire protection code, it is necessary to consider designing two buildings as one building Two independent fire compartments, separated by a firewall in the middle, and the proportion of the production part with greater fire risk to the area of ​​the fire compartment must be less than 5%, so as to determine the fire risk of the whole building according to the part with less fire risk Classification, that is, the construction area of ​​the rectifier unit with a fire hazard of Class C must be less than 5% of the area of ​​the entire building in order to classify the fire hazard classification of the entire building according to the aluminum electrolysis workshop with a lower fire hazard

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