SU108816A1 - Mobile electrolyte punching device for aluminum electrolyzer - Google Patents

Description

Mobile devices for punching the electrolyte crust of an aluminum electrolyzer by means of a pneumatic percussion tool with a free piston hinged on a boom and controlled by a system of hydraulic cylinders with a free piston, which strike a blow at the peak, are known.

A feature of the proposed device is the supply of the free piston rod bearing the peak with two cuff plates, which divide the cylinder into three independent air chambers, of which the lower one serves to supply compressed air into it when lifting the peak to its initial position, medium when lifting the piston and applying it blow, and the top is communicated with the atmosphere of a throttling hole. This embodiment of the device provides damping recoil blows Porshn pneumatic percussion instrument.

The proposed device is shown in FIG. 1 in general; in fig.

2-in working position when processing the ends of the bath; in fig. 3 separately shows a pneumatic tool; in fig. 4 - scheme of his work.

The pneumatic percussion instrument / is hinged on the boom 2, which is pivotally connected to the rotary column 5. A system of hydraulic cylinders 4 is used to control the movements of the percussion instrument /. All the components of the device are mounted on a forklift truck 5.

The pneumatic percussion instrument / is a cylinder with two caps 6, in which a free piston 7 is placed.

The piston rod 8 of the piston 7 carries two cuff plates 9, which divide the cylinder into three independent air chambers. Between cuff plates placed freely movable slit. The raising and lowering of the piston is controlled by the air valve 10.

On the lower end of the rod 8 screwed peak // with a wider shank. Wider part of the shank

moves in the spacer 12, which covers the gland seal and the rod from the high temperature of the molten electrolyte. Electrolyte splashes that fall on the shank spikes are cut off by the sharp edge of the sleeve.

On the upper cylinder head there is a pointer 13 to dive peaks 11, which makes it possible to correctly calculate the force of the impact of the piston and not to make single blows.

The presence of three air chambers in the instrument cylinder / allows you to work without recoil.

The upper chamber 14 is constantly in communication with the atmosphere through a calibrated orifice (with a small air passage) and an air-oil filter 15.

In the lower chamber 16 by means of the crane 17, compressed air is supplied along the arrow 18 and the rod rises to the initial position. After installation with the help of the boom 2 and the system of hydraulic cylinders 4, peaks // on the electrolyte crust 19, the handle of the crane 17 is set to the atmosphere position, and the handle of the crane 10 to the position of the piston lifting, and the compressed air flows in the direction of the arrow 20 into the middle chamber for lifting piston; then, by rapid or slow motion (depending on the required impact force), the same handle is moved to the piston stroke position and the compressed air enters the same middle chamber but arrow 21.

This operation is repeated until the NICKY is immersed in the electrolyte crust 19, after which, with the help of the hydraulic cylinder 4, the entire tool is inclined to crack the crust. After breaking into the area of the crust of the peak And lift to its original position.

The tool / is moved to a new location and the operations are repeated.

In the slash zayadan peaks in the crust

the electrolyte can be knocked out of the piston upwards, the system of hydraulic cylinders allows you to quickly raise, lower and tilt the tool, as well as move it radially within 180 °. The control of the hydraulic cylinders is carried out through the distributor of the hydraulic drive of the forklift.

The movement of the device along the bath and in the workshop, as well as the operation of the hydraulic drive, is carried out due to the energy of the battery.

In drawing 22 is an anode bath, 23 is an electrolyte.

Subject invention

 1. A mobile device for punching the electrolyte crust of an aluminum electrolyzer by means of a hinged and hinged hydraulic cylinders of a pneumatic percussion instrument controlled by a system of hydraulic cylinders with a free piston striking a nick, characterized in that, in order to absorb recoil blows, the piston the rod bearing the peak is equipped with two cuff plates, which divide the cylinder into three independent air chambers, of which the bottom one serves to supply compressed air into it when lifting the peak to its initial position, media n - during the ascent of the Norshchn and a strike to them, and the upper is connected with the atmosphere through a throttling hole.

2. Mobile unit n. 1, characterized in that the sleeve covering the brush is attached to the cylinder head and provided with a sharp edge on the second end for cutting off electrolyte splashes falling on the thickened shank NICKY.

3. In the device according to p. I, applying the dip depth indicator of the peaks into the crust on the brush coming out of the cylinder.

FIG. 3

15

rt

stock