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Anode with gas exhausting hole for aluminum electrolysis

A vent hole and aluminum electrolysis technology, which is applied in the field of improvement of the internal shape and structure of the anode block, can solve the problems of increased tank resistance, increased tank voltage, and increased power consumption, and can reduce the set voltage and working voltage, The effect of reducing power consumption and avoiding effects

Inactive Publication Date: 2009-01-21
秦晓明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the anode effect is not formed, the cell resistance will increase a lot, resulting in an increase in the cell voltage and power consumption
Usually CO 2 It can produce a voltage drop of 250mV, and a voltage drop of 1mV will consume 3 degrees of electricity, so that the production of 1 ton of aluminum ingots will consume an additional 750 degrees of electricity

Method used

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  • Anode with gas exhausting hole for aluminum electrolysis
  • Anode with gas exhausting hole for aluminum electrolysis

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Embodiment 1: as figure 1 As shown, the anode carbon block 1 is a tetragon, the bottom surface 2 is a plane, and the top surface is embedded with a steel claw 3. The upper part of the steel claw is provided with an explosion block 4 and a guide rod 5, and a vertical anode block is produced near the center of the anode block. Cylindrical exhaust hole 6, the aperture of the exhaust hole can be selected from 0.3 to 10 centimeters, the preferred range is 1 to 7 centimeters, and the best is 5 to 6 centimeters; the exhaust hole can be selected as a through hole, which can be a vertical through hole , also can be the oblique through hole that forms a certain angle with vertical line; Exhaust hole is the half through hole that does not lead to bottom palm, and the bottom of half through hole is 1~10 centimeters apart from the bottom of bottom palm. The cross-section of the exhaust hole can be a cylindrical hole with the same or different geometric dimensions; it can also be one...

Embodiment 2

[0018] Embodiment 2: as figure 2 As shown, since the anode is piled with 10-20 cm thick surface shell covering material, in order to prevent the covering material from falling into the vent hole and causing blockage, a placement hole 61 is provided on the top of the vent hole, and placed in the placement hole There are non-metallic pipes (or metal pipes) 7 with high temperature resistance and oxidation resistance, so as to form air flue, and then add surface shell fragment covering material around the pipes. The pipe can be pressed with alumina and binder, and then used as alumina raw material and put into the electrolytic cell for use. The pipes can also be made of carbon material, but can also be made of other materials.

[0019] In the present invention, the exhaust hole can be a through hole up and down. For the convenience of one-time molding and manufacturing, it can also be a half-through hole that is connected from the top to the bottom. 30 cm, the preferred range i...

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Abstract

An anode with an exhaust hole used for aluminium electrolysis relates to an anode block used for aluminium electrolysis. The anode block comprises the structure that the anode block is provided with an exhaust hole; the exhaust hole can be a through hole, a vertical through hole or an oblique through hole forming an angle with a vertical line; moreover, the exhaust hole can also be a semi through hole which does not reach an anode bottom, and the distance between the bottom of the semi through hole and the bottom of the anode bottom is between 1 and 30 centimeters; and a high temperature-resistant antioxidizing nonmetallic pipeline or a metal pipeline is arranged above the exhaust hole. The anode block has the advantages that the anode block can effectively solve the problem of retention of gas bubbles accumulated on the anode bottom, and ensure that gas bubbles under the anode bottom can be smoothly discharged outside a cell, thereby reducing cell resistance and preventing the generation of effect; moreover, the anode block reduces both set voltage and working voltage of an electrolytic cell so as to reduce electricity consumption, thereby saving 60 to 150KWH of electricity when manufacturing one ton of aluminum ingot.

Description

Technical field: [0001] The invention relates to the improvement of the internal shape and structure of the anode block for aluminum electrolysis. Background technique: [0002] In the aluminum electrolysis production process, the function of the anode block is: the direct current energy is transmitted to the electrolyte solution in the electrolytic cell through the anode guide rod, the explosion block, the anode steel claw and the anode block, so as to realize the electrolytic aluminum process production. [0003] At present, the anode used in aluminum electrolysis is an imitation cuboid block, with a steel claw conductive device embedded on the upper surface, and the bottom palm is a flat design. During the aluminum electrolysis production process, a large amount of CO is produced under the bottom palm of the carbon anode 2 Gas, these gases are easily mixed in the electrolyte, because the anode bottom has a large and flat area, the gas encounters resistance when it floats...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/12
Inventor 秦晓明
Owner 秦晓明
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