SU328754A1 - Cathode tank of aluminium electrolyzer - Google Patents

Description

The cathode housing of an aluminum electrolysis cell is known, which consists of a rectangular box, welded from sheet steel and vertical beams (buttresses), which give rigidity to its longitudinal and end walls. Under the bottom of the box installed horizontal beams. Vertical beams (buttresses) are pairwise interconnected by connecting rods passing under the bottom of the box. The lower ends of the vertical beams are embedded in the foundation wells. The purpose of the invention is to reduce the specific metal consumption for the design of the electrolyzer and increase its service life. For this, the vertical buttress beams in the middle part are pivotally connected by the bottom of the casing. In addition, the lower ends of the vertical buttress beams are unpacked in pairs with reinforced concrete beams, and in the casing bottom there are welded nests, the axes of which are aligned with the neutral axis of the bottom section. FIG. 1 shows the proposed cathode housing, front view; in fig. 2 - the same, top view; in fig. 3 - the same cross section; in fig. 4 shows a fastening unit for the vertical buttress beam to the bottom of the casing. The cathode casing consists of a rectangular welded from sheet steel box 1, the longitudinal walls of which are provided with angles 2, providing rigidity to the longitudinal walls of the casing in the span between the vertical buttress beams 3. The end walls of the box are reinforced with rigid beams 4 with lining 5. as beams, lying freely on two supports and loaded with a uniformly distributed load. This pattern of operation of the end walls is ensured by the absence of rigid elements in the corners of the casing. The rigidity of the casing bottom is created by I-beams 6 welded to it, through which the casing rests on building structures. In the bottom of the casing, the sockets 7 for the pin 8 and the nuts 9 are welded in, with which the vertical buttress beams are fixed on the longitudinal walls of the casing. In the lower part, the vertical buttress beams have pockets in which the horizontal reinforced concrete beams 10 are laid. The studs and reinforced concrete beams connect the opposing vertical buttress beams of the casing in pairs. When exposed to the bottom of the longitudinal walls of the casing load

It is transmitted to the upper parts of the beams and is perceived by reinforced concrete beams and studs. Reinforced concrete beams (struts) at the same time work in compression, and studs in tension. The studs, in turn, transfer the load on the bottom of the casing through the sockets. This allows refusing the long rigs used in the known cathode shells, which, because of their length, have large deformations in the elastic stage and thus reduce the casing rigidity.

Claims (3)

1. Cathode casing of an aluminum electrolysis cell, elongated in the form of a rectangular one, having horizontal beams on the outside and bottom, and vertical beams on the longitudinal sides, in order to reduce the specific metal consumption for the design of the electrolyzer and extend the time its services, vertical buttress beams in the middle part are pivotally connected to the bottom of the casing. 1c 2. A casing according to claim I, characterized in that the lower ends of the vertical buttress beams are unpair with pairs of reinforced concrete beams.  3. A casing according to claim 1, characterized in that sockets are welded in the bottom of the casing, the axes of which are aligned with the neutral axis of the bottom section. at J you 6I iliFig t Sh 21 t, / A / / And / i / 1: / y And And - L / I TTL VUi ill Rig.Z J 6