A continuous anode aluminium electrolysis cell

Abstract

A kind of continuous anode on the fixing seat frame device of aluminum electrolytic cell, it is used in electrolytic equipment. It includes: cathode heat insulation tank shell 1, aluminum water 2, inert cathode 3, electrolyte 4, insulating plate 5, gas cavity 6, continuous anode fixing seat 7, exhaust hole 8, limit block 9, continuous anode metal shell 10, carbon anode 11.The present application has the following advantages: 1, fixing seat frame replaces traditional closed cover, tightly carries out full closure to electrolytic furnace chamber, waste gas generated in electrolysis process can only be discharged from the exhaust hole set up, and no organization is discharged.2, fixing seat frame and cathode heat insulation tank shell form high pressure cavity to heat, and play a key role in heat control.3, fixing seat frame is connected to anode shell with clamping, so that anode shell is not easy to deform, ensure that carbon anode is long-term vertical operation unobstructed, long service life.4, multiple gas holes can be designed on the plane of fixing seat frame, strictly discharge waste gas, achieve minimum exhaust volume, also can be used as a discharge hole.

Description

Technical Field

[0001] This invention belongs to the field of aluminum electrolysis technology. Background Technology

[0002] Since Roue-Hol invented the molten salt process for aluminum smelting, the application of anodes in aluminum electrolysis has been discontinuous. Over the years, Jia Shiming and Wang Hongxia of the Wuhan Decheng Science and Technology Engineering Research Institute invented the continuous anode. Therefore, the installation of the continuous anode in the aluminum electrolysis cell requires a scientific approach. The aim is to achieve: 1) centralized utilization of thermal energy; 2) overcoming fugitive emissions of waste gas; 3) a simpler and more advanced material feeding method; 4) a simpler structure; and 5) a more advanced process. Summary of the Invention

[0003] To save energy and protect the environment, and to ensure the scientific installation of continuous anodes on aluminum electrolysis cells, we have invented a fixing bracket device for continuous anodes on aluminum electrolysis cells.

[0004] This invention mainly utilizes a continuous anode fixed support frame to replace the traditional aluminum electrolysis cell for fully enclosed production, eliminating fugitive emissions of waste gas and achieving fully automated, fully enclosed gas collection, purification, and material feeding.

[0005] The technical solution adopted in this invention is as follows: A continuous anode fixing bracket is installed on the edge of an insulated tank shell, with an insulating plate between them. Waste gas generated during electrolysis is collected by the electrolyte, the insulating plate, and especially the gas chamber formed by the continuous anode bracket and the carbon anode, and then discharged through holes to a purification system for treatment. This is a very strictly closed system, strictly preventing fugitive emissions. The limiting block limits and fixes the continuous anode metal shell, connecting the two as a whole; the holes can also serve as material discharge holes. The continuous anodes can be arbitrarily arranged on the fixing bracket device; there can be two or more in any arrangement, and the holes can also be arbitrarily designed and laid out, or used as material discharge holes. The process is simple, energy-saving, and environmentally friendly, realizing continuous and automated production of electrolytic aluminum anodes. Attached Figure Description

[0006] The invention will be further described below with reference to the accompanying drawings.

[0007] Figure 1 The diagram shows a continuous anode mounting bracket on an aluminum electrolysis cell: 1. Insulated cell shell, 2. Molten aluminum, 3. Inert cathode, 4. Electrolyte, 5. Insulating plate, 6. Gas chamber, 7. Continuous anode mounting bracket, 8. Hole, 9. Limiting block, 10. Continuous anode metal shell, 11. Carbon anode.

[0008] Figure 2 Here is a top view of the fixed bracket device: 7. Continuous anode fixed bracket, 8. Hole, 9. Locking block, 10. Continuous anode metal housing. Detailed Implementation

[0009] Figure 1 The continuous anode mounting bracket shown is installed on the edge of the insulated tank shell 1. An insulating plate 5 separates the anode and cathode currents. The current flowing through the carbon anode 11 in the continuous anode metal shell 10 passes through the electrolyte 4 to the molten aluminum 2, then through the inert cathode 3 to form a circuit with the external power supply, thus realizing aluminum electrolysis. The waste gas generated during electrolysis is collected in the gas cavity 6 formed by the electrolyte 4, the insulating plate 5, the continuous anode mounting bracket 7, and the carbon anode 11, and then discharged through the hole 8 to the purification system for treatment. This is a very strictly closed system, strictly preventing fugitive emissions. The limiting block 9 limits and fixes the continuous anode metal shell 10, connecting the two into one unit. Some holes 8 can also be used as material discharge holes.

[0010] Figure 2 The continuous anode shown can be arbitrarily arranged on the fixed bracket device on the aluminum electrolysis cell. There can be two or more in any arrangement, and the holes 8 can also be arbitrarily designed and arranged.

Claims

1. A continuous anode aluminum electrolytic cell, characterized in that, It includes a continuous anode fixing bracket (7), which is installed on the groove edge of the insulating tank shell (1) of the aluminum electrolysis cell. There is an insulating plate (5) between the continuous anode fixing bracket (7) and the groove edge of the insulating tank shell (1). A gas chamber (6) is formed by the electrolyte (4), the upper side of the insulating tank shell (1), the insulating plate (5), the continuous anode fixing bracket (7), the continuous anode metal shell (10), and the carbon anode (11). It is a gas collection chamber for the waste gas generated during electrolysis production, and achieves fully sealed gas collection.

2. The continuous anode aluminum electrolytic cell according to claim 1, characterized in that: The electrolytic cell contains molten aluminum (2), an inert cathode (3) and an electrolyte (4), and aluminum can be produced after electricity is applied.

3. The continuous anode aluminum electrolytic cell according to claim 1, characterized in that: The continuous anode fixing bracket (7) has multiple holes (8) arranged on its plane. Some holes are connected to external purification pipes to draw the waste gas into the purification device for purification, and some holes are connected to external alumina feeding and conveying pipes to realize feeding.

4. A continuous anode aluminum electrolytic cell according to claim 1, characterized in that: The installation layout of the continuous anode metal shell (10) and carbon anode (11) can be arranged in any number of rows and columns.

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