RU2265084C2 - Method and device for breaking electrolyte crust in aluminum producing electrolyzer - Google Patents

Abstract

FIELD: electrolysis production of aluminum; devices for breaking electrolyte crust in aluminum producing electrolyzers.

SUBSTANCE: proposed method includes impact action of punch on electrolyte crust at simultaneous application of pressing force of 300-1000 kg. Device proposed for breaking the electrolyte crust includes self-propelled trolley with vertical frame mounted on its side and provided with boom which may be hoisted, lowered and extended forward and vibrating hammer; counter-weight of 500-1000 kg is secured on trolley on side opposite to frame. Proposed device reduces time for treatment of electrolyzer end faces by 2-3 times.

EFFECT: enhanced efficiency.

3 cl, 2 dwg

Description

The invention relates to ferrous metallurgy, in particular to equipment for producing aluminum by electrolytic method.

A known method of destroying the crust of the electrolyte at the ends of the electrolyzer to produce aluminum by impact of a hammer or punch on the crust (SU 372826).

A known method of destroying the crust of an electrolyte by exposing the crust to blows with a vibratory hammer (SU 387032).

The disadvantage of this method is the slow rate of destruction of the crust of the electrolyte under the influence of hammer blows or vibratory hammers. A particularly long time is required for the destruction of the electrolyte crust near the side of the cell bath, where the thickness of the electrolyte crust is maximum.

A device for destroying the crust of the electrolyte at the ends of the electrolyzer, including a self-propelled truck with an arrow mounted on it, made with the possibility of raising and lowering it and equipped with a mechanism for breaking the crust of the electrolyte SU 387032.

The disadvantage of this device is that the boom is made telescopic, which makes it unsuitable for use with vibration damaging devices, such as a vibratory hammer.

A device for destroying the crust of an electrolyte containing a self-propelled truck with a vertical frame placed on the side, having an arrow made with the possibility of its lifting, lowering and extension forward, and a vibration hammer (RU 2128248). This device is the closest analogue.

The disadvantage of this device is the long time required to destroy the crust of the electrolyte with a vibratory hammer.

An object of the invention is to reduce the time for processing the ends of the electrolyzer and providing the possibility of processing the crust at the ends of the electrolyzer in a predetermined technological mode in a given area.

The solution to the problem is achieved by the fact that in the method of destroying the crust of the electrolyte in the electrolyzer to produce aluminum, including the impact on the crust of the punch, at the same time as the impact on the punch, a pressure of 300-1000 kg is applied.

In the device for destroying the crust of the electrolyte in electrolytic cells for producing aluminum, comprising a self-propelled cart with a vertical frame on the side, having an arrow made with the possibility of raising, lowering and extending it forward, and a vibratory hammer, a counterweight 500 is mounted on the self-propelled cart from the side opposite to the frame -1000 kg.

The invention allows to reduce the processing time of the end of the cell by 2-3 times.

Figure 1 shows a General side view of a device for breaking the crust of an electrolyte.

In figure 2. Shows a rear view of the device for breaking the crust of the electrolyte.

The device consists of a self-propelled trolley 1, a side frame 2 to the top of which an arrow 3 is pivotally mounted using a rod 4 and a rod 5 with a hydraulic cylinder 6. The rod 4 is pivotally connected to the frame 2 through the hydraulic cylinder 7. At the end of the boom 3, a vibration hammer 8 and a punch 9 are mounted and at the opposite end of the boom there is a hydraulic cylinder 10 for its rotation around its axis. To the self-propelled trolley 1 from the side opposite the frame, a counterweight 11 is fixed - a load weighing 500-1000 kg.

The device operates as follows:

Self-propelled cart is parallel to the longitudinal side of the cell. The horizontal boom 3 with the help of the hydraulic cylinder 7 extends the vibratory hammer 8 and the punch 9 above the desired point on the treated surface of the electrolyte crust. The hydraulic cylinder 6 presses the end of the boom 3 with the punch 9 to the electrolyte crust, turns on the vibratory hammer and continues to press the punch 9 to the electrolyte crust until it breaks. The force of the hydraulic cylinder 9 is enough to destroy the crust, and the vibration hammer helps to accelerate this process. The presence of a counterweight does not allow the force of the hydraulic cylinder 9 to tear the wheels of the self-propelled cart from the ground and increases the pressure on the electrolyte crust.

The destruction of the crust of the electrolyte occurs 2-3 times faster than the destruction of the crust only from the efforts of the vibratory hammer.

Claims (2)

1. The method of destruction of the crust of the electrolyte in the electrolyzer to produce aluminum, including the impact on the crust of the piercer, characterized in that at the same time as the impact on the piercer apply a pressure force of 300-1000 kg 2. Device for destroying the crust of the electrolyte at the ends of the electrolytic cell for producing aluminum, comprising a self-propelled trolley with a vertical frame on the side, having an arrow made with the possibility of raising, lowering and extending it forward, and a vibration hammer, characterized in that on the self-propelled trolley from the side , opposite to a frame, the counterbalance of 500-1000 kg is fixed.

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