SU639460A3 - Device for breaking electrolyte crust - Google Patents

Description

P1cApplication relates to the electrolytic production of aluminum from molten media. When aluminum alumina is obtained by electrolysis from molten cryolite containing soluble aluminum oxide, a slag crust is formed on the surface of the gwanna. This crust needs to be cleaved and transferred to the electrolyte melt, where it melts or dissolves. This operation was previously carried out manually, and now with the help of a device for destroying the electrolyte core, the so-called slag-cutting machine. Such a slag-and-scrubbing machine, normally SITTING from a self-propelled trolley or platform, is able to move along an electrolytic bath or furnace, or along a series of electrolyzers or furnaces. A carriage is installed capable of moving an arrow, on the free side of which a pneumatic breaker is fixed to destroy the crust of the slag. Moving the trolley and boom is a pneumatic breaker. They are placed above the bath surface and with the help of frequent blows they crush the slag crust and small parts that can melt the IL. zorki both at the walls and at the ends of each electrolytic bath. Crushing slag crust along the walls of the bath is not a difficult task and designing slag-cutting machines, while chipping the crust at the ends of the wafers with limited free space has always been a difficult question. This was done to a large extent with the use of closed electrolytic baths. None of the slag-cutting machines cannot be effective enough in this case. The purpose of the invention is to create a slag-cutting machine, with the help of which it is possible to efficiently and economically cleave the slag in hard-to-reach places of the bath, i.e., to carry out an operation previously carried out for the most part manually. This is achieved in that the boom is provided with a mechanism for ensuring its rotation and / or movement relative to its longitudinal axis and an axis perpendicular to it. This arrow is a telescopic one. FIG. 1 shows the proposed device for breaking the electrolyte crust; in fig. 2 - the same, different positions, top view.

Device oto..a sa: A trolley / (electric car, forklift), having in front of the usual lifting frame 2.

The telescopic boom is fitted to the lift truck with special support devices. This arrow 3 can consist of two parts (Za and 36) so that the end of the boom can reach any part of the electrolytic bath of any structure. A pneumatic breaker K-4 is attached to the free end of the boom, but in general, the mechanism for driving IB can be any other hammer action.

With standard tools, the boom can be raised or lowered by moving in a vertical or nearly vertical plane. Thus, the baffle hammer 4, together with a smart 5, such as a crowbar or some other, can be fed directly to the shank KopiKe.

Another option for accomplishing this movement may be to allow the boom to rotate around a horizontal axis perpendicular to the axis of the boom. Thus, the boom can be placed almost perpendicularly to the normal direction of movement of the cart, which is often required for some reasons, one of which is the need for a good overview of the working space of the pepp.

Quite important in this: the invention is that the hammer has the ability to rotate around an axis parallel to the axis of the boom. In the above diagram, this effect is due to the fact that the boom, as a whole, can be rotated in the bracket 6 by means of a hydraulic cylinder 7. In this case, the jackhammer 4 can be fixedly attached to the free or outer end of the outer part: 3b . The jackhammer can handle the bath surface is significant: - the second width (pa of Fig. 1 is shown by dashed lines.and), so that to access the tool there is no need for a wide hole.

At the bottom of FIG. 2 shows the possibility of treating a slag-banding narrow narrow o: blast; And the edge of an electrolytic bath, the short side of which is denoted by the letter K, and the long side by the letter L. The anodes are designated by the letter A, and the letter S defines the surface of the bath on which the crust of sclac is formed and which: 1 needs to be processed.

It should be borne in mind that various boom movements: can be carried out by means of hydraulics, as shown in FIG. 2, where it can be seen that the hydraulic cylinder 8 can be pulled out or pulled in.

telescopic part of the arrow Behind (36). Me, the lanism for such movement of arrows requires small sizes and is easy to operate with limited space, since the boom with a jackhammer is in an idle position in front of the cart, only slightly protruding beyond its dimensions. The telescopic part of the stem; 1y has a hydraulic cylinder for removing part 36, due to which, in the United Nations, the jackhammer horizontally moves. The cylinder 8 rotates together with the rest of the boom design in the bracket 6. If necessary, Carry out oscillatory movements of the pick hammer 4 s: striker 5.

In order to ensure dynamic loading during the slag crushing process, the free end of the boom or the breaker must have sufficient mass, whereby the load on the boom and its hydraulics, as well as on the bracket 6 and on the part of the carriage 1 itself, is largely decreases.

The slagging machine can also perform other operations: such as cleaning the anode blocks when replacing them, Cleaning the bath from the COMBES and OKOV anodes. Such use of the machine is illustrated in the upper part of FIG. 2. Here the jackhammer is placed in a narrow space between two anode blocks, when changing blocks.

The slag machine can be designed to take into account the ease of installation and disassembly on an ordinary four-wheel autoloader. And therefore, it can be fully used for its intended purpose. This makes it possible to create a fairly easy liripos: a broomstick, a versatile and economical machine, Optional Slag Clearing Operations and Baths of various types, where there is a restriction in the free rap island. These advantages are added to those determined by the possibility of using the machine on the edges of the bath, in particular, in closed electrolytic baths.

FORUM at l and 3 O b ete n i

Claims (2)

1. A device for crushing electrolyte cork in electrolyzers for producing aluminum, including a self-propelled bogie with a boom installed on it, made with the possibility of raising and lowering it and equipped with a baffle device, characterized in that in order to provide punching in a crust in hard-to-reach Electrolyzer Locations, the boom is equipped with a mechanism for ensuring its rotation and / or movement relative to its longitudinal axis and an axis perpendicular to it. 2. The device according to claim 1, characterized in that the boom is made telescopic. The source of information, taken into account in the examination: 1. The patent of Norway No. 111036, cl. 40 3/12, 1967. FIG. 55 2