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Method for controlling energetic balance of aluminum cell

An energy balance and aluminum electrolytic cell technology, which is applied in the control field of the heat balance of the intermediate point blanking pre-baked aluminum electrolytic cell to achieve the effect of stabilizing the operation of the electrolytic cell

Inactive Publication Date: 2008-10-01
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows an operator to set up parameters such as the power supply level or current flowing through each section of the cells during different stages of processing them by adjusting certain variables like water temperatures and acid concentrations based on their needs. By measuring these values accurately and controllably, they are able to improve efficiency and reduce costs associated with producing high-quality metallic materials from molten metal produced via electrometric processes.

Problems solved by technology

Technological Problem: Aluminium Electrobath Cell Control (EBC) Protocol Overall, Current EBCO protocol uses various methods to optimize the performance or cost ratio of different components within the battery system. These techniques include controller design based on factors like power balance, overfeeding compensation, etc., but they are limited due to their limitations with respect to achieving optimal material balances and temperatures that result in improved overall performance and reduced emissions during use. Therefore, finding more accurate temperature targets becomes crucial when optimizing these parameters.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] Conditions of control electrolytic cells: 26 aluminum electrolytic cells, the series current is 150kA, the electrolyte volume in each electrolytic cell is 4 tons after calculation, the feeding amount of the feeder is 1.67kg~1.80kg after multiple calibrations, and each electrolytic cell has 4 feeders, the number of feedings per day within a week is 290 times, the time interval in the under-feeding cycle is 500s, and the feeding interval in the over-feeding cycle is 180s. The molecular ratio is 2.40-2.45, and the cell voltage is controlled at 4.08V.

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PUM

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Abstract

An energy control method for an aluminum electrobath relates to a control method of an intermediate point type discharging pre-bake aluminum electrobath thermal equilibrium. The invention is characterized in that: the method uses the measured electrobath temperature everyday inputting to the computer to obtain an average value of 5 days/10 days. The value is a target value of the electrobath energy equilibrium control which is revised by the concentration of the electrobath aluminum oxide. The bath control machine adjusts the discharging quantity of the aluminum oxide and fluoride according to the target value which changes the disadvantage of not linking directly to the electrobath thermal equilibrium state by using the bath voltage as the target value of the electrobath equilibrium control in the past time. The method can control the polar distance of the electrobath and the concentration of the aluminum oxide in a narrow range, at the same time the method also controls the fluoride in a stable state which is a benefit for the operation of the electrobath and saving energy and reducing the consumption for the production of electrolytic aluminum.

Description

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Claims

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Application Information

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Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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