RU167601U1 - HINGED MECHANISM FOR CLEANING A FLANGE SHEET TO A FORKLIFT LOADER - Google Patents

Abstract

The hinged mechanism is designed to move alumina from the flange to the sections of the gas collection bell (HSC) and move it to the electrolyte crust in an aluminum electrolyzer. The mechanism comprises a working tool equipped with a lowering depth limiter and a protective fence and mounted on a telescopic boom placed on the frame. The depth limiter is made in the form of a limit roller fixed with the possibility of self-installation. The working tool is made in the form of a gear cylindrical-conical cutter, and the frame is made with the possibility of installation on a forklift. At least one scraper is placed on the drive shaft housing of the working tool for cleaning and leveling the flange sheet. Due to the constructive performance, the cleaning efficiency is improved by setting the required processing depth, increasing the breaking force and continuously removing the solidified electrolyte from the surface of the flange sheet, performing the milling grooves and the environment, by reducing dust formation. 1 s.p. f-ly, 5 ill.

Description

The utility model relates to the field of non-ferrous metallurgy, in particular, to equipment used for the technological processing of electrolyzers for the production of aluminum, namely, cleaning the flange assembly from solidified electrolyte. The hinged mechanism is designed to move alumina from the flange to the sections of the gas collection bell (HSC) and move it to the electrolyte crust.

When servicing electrolyzers, bursts of solidified electrolyte and spillage of alumina from the flange sheet of the electrolyzer were manually removed using scrapers and brooms. The removal process is inefficient and environmentally harmful, because dusting occurs.

The closest in technical essence to the claimed device is a Henkon flange plate cleaning machine (http://hencon.ru/produktsiya/produkt-1/tekhnika-dlya-korpusov-elektroliza/mashina-mnogofunktsionalnaya-tekhnologiheskaya). Flange plate cleaning equipment is installed on the boom of a special self-propelled machine. A special brush due to the hydraulic drive ensures cleaning of the flange sheet on the sides of the cell. The flange sheet cleaning operation consists of sweeping alumina from the flange back to the crust.

The disadvantages of the prototype are:

- it is impossible to precisely determine the depth of processing, there is no depth limiter;

- a special brush does not allow to achieve the necessary processing effort, which determines the low cleaning efficiency of the frozen electrolyte on the surface of the flange sheet, which is weakly, ineffectively amenable to destruction by the brush;

- excessive dust formation is formed when sweeping alumina onto the electrolyte crust;

- it is impossible to perform the milling grooves of the flange sheet necessary to eliminate overheating of the sheet;

- the leveling operation is not performed, because no leveling scraper;

- it is not possible to install treatment equipment on a serial forklift.

The objective of the utility model is to eliminate the disadvantages of the prototype, improve cleaning efficiency, by setting the required processing depth, increase the fracture force and continuously remove solidified electrolyte from the surface of the flange sheet, perform a milling groove and improve the environment by reducing dust formation.

The technical result consists in the development of a device that ensures the achievement of the task.

The technical result is achieved by the fact that the hinged mechanism for cleaning the flange sheet to the forklift truck, containing a working tool, equipped with a protective fence and mounted on a telescopic boom mounted on the frame, is additionally equipped with a limiter for the depth of lowering of the working tool, made in the form of a roller fixed with the possibility of self-installation and the working tool is made in the form of a gear cylindrical-conical cutter, while the frame is made with the possibility of installation on a forklift.

The device complements the private hallmark.

At least one scraper is placed on the drive shaft housing of the working tool for cleaning and leveling the flange sheet.

The design, its features, details and advantages can be understood from the description given with reference to the accompanying drawings, illustrating an example of a utility model, which shows:

in FIG. 1 is a general right view of the mechanism in a transport position;

in FIG. 2 is a general left view of the mechanism in a transport position;

in FIG. 3 - installation of the limit roller mechanism;

in FIG. 4 is a section along AA in FIG. 3;

in FIG. 5 is a diagram of a boom movement.

The list of structural elements: mounted mechanism 1; platform 2; bracket 3; outer section 4 arrows 5; inner section 6 of boom 5; stand 7; the rotation unit 8 of the cutter 9; the shaft 10 of the rotation unit 8 of the cutter 9; a hydraulic motor 11 of the drive shaft of the cutter 9; protective shield 12; cylindrical mill 13; conical cylindrical mill 14; spline nut 15, restriction roller 16; axis 17; offset axis of swing 18; scraper 19; scraper 20; hydraulic cylinder 21; special screws 22; counterweight 23.

The mounted mechanism 1 is installed on the platform 2. The platform 2 has rectangular holes through which the mounted mechanism 1 is mounted on the forks of the loader. On the bracket 3 of the platform 2, the outer section 4 of the boom 5 is fixed, from which the inner section 6 of the boom 5 extends. At the end of the inner section 6 of the boom 5, a stand 7 is mounted to which the rotation unit 8 of the cutter 9 is fixed. On the shaft 10 of the rotation unit 8 of the cutter 9 sec on one side, a cylindrical-conical gear mill 9 is installed, on the other hand, through the coupling, a hydraulic motor 11 for the mill shaft drive 9 is installed. The mill 9 is fenced by a protective shield 12. As a working tool, a special compound, multi-gear, is used to clean the flange assembly indrically-conical cutter 9. The composite cutter 9 consists of three parts: a cylindrical cutter 13, and a composite conical-cylindrical cutter 14. The cutter 9 is fixed with a keyway on the shaft 10. The cutter 9 is fastened with a round slotted nut 15, the nut is fixed with a multi-blade washers (not shown in FIG.).

To ensure the necessary depth of cutter with a mill 9, a limiter roller 16. A limiter roller 16 does not allow the cutter 9 to be deepened during operation and is a limiter for lowering the cutter. The limit roller 16 rotates freely on the axis 17 on the bearings and has the ability to "self-install." The swing (self-installation) of the limit roller 16 is due to the displaced axis of swing 18. The axis of swing 18 is shifted back from the axis of rotation 17 of the roller 16.

A scraper 19 is provided for cleaning the flange sheet. A scraper 20 is provided for leveling alumina. The cleaning scraper 19 is not adjustable. The position of the scraper 20 can be adjusted. The extension of the boom sections is carried out by the hydraulic cylinder 21. The device is connected to the hydraulic system of the base chassis using high pressure hoses (RVD) through a quick disconnect connection (BRS) (not shown). To fix the device on the forks of the loader, fastenings on the forks are provided, for example, four special screws 22. To balance the device on the forks, a counterweight 23 is provided.

The device is a removable device installed on the standard forks of a serial diesel forklift, which has at least two additional sections of the hydraulic distributor.

The device operates as follows:

The cutter is turned on by deviating from the neutral position of the control handle of the additional section of the loader distributor.

Raising lowering the forks, respectively, providing cutting with a milling cutter, is carried out by standard handles for controlling the lifting lowering of the forks of the loader.

The lowering of the cutter is carried out to the limit roller, which, moving along the flange sheet, determines the depth of cut. Specially designed scrapers clean the flange sheet and level the alumina.

When the device is provided:

- rotation of the hydraulic drive of the cutter device - hydraulic system of the loader;

- extension of the cutter horizontally towards the electrolyzer, with a telescopic boom with hydraulic drive - hydraulic system of the loader;

- raising and lowering the cutter - by the mechanism for raising and lowering the forks of the loader;

- moving the cutter along the electrolyzer - by moving the loader;

- cleaning the flange sheet with a special scraper - moving the loader;

- leveling alumina on the surface of the crust, the second scraper - the movement of the loader;

- milling depth - is set by the restrictive roller copying the surface of the flange sheet.

The device is intended for cleaning the flanged unit of electrolyzers with a cylindrical-conical multi-toothed mill, due to the rotational movement of which bursts of solidified electrolyte are destroyed on the surface of the flange sheet and are moved with special scrapers from the edge (from the flange) to the gas collecting bell sections and are swept off to the electrolyte crust.

The device is a removable device that is installed on the standard forks of a serial diesel forklift, which has at least two additional sections of the hydraulic distributor, and provides year-round, continuous, round-the-clock operation in the conditions of aluminum electrolysis, at an ambient temperature from minus 40 ° C to plus 70 ° C, in a constant magnetic field and dusty air.

Claims (1)

A hinged mechanism for cleaning the flange sheet of an aluminum electrolyzer containing a working tool mounted on a forklift truck with a protective guard mounted on a telescopic boom mounted on the frame, characterized in that it is removable with the possibility of installing the frame on the forks of the forklift truck and is equipped with a limiter for lowering the working depth a tool made in the form of a limit roller fixed with the possibility of self-installation, and the working tool is made in the form of a gear cylinder esky conical cutters.

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