A fully distributed voice warning method and system for aluminum electrolytic cells

Abstract

The invention discloses a fully-distributed type voice early warning method for aluminum electrolytic cells and a system adopting the fully-distributed type voice early warning method. The method comprises the following steps that 1, electrolytic cell controllers obtain real-time state data of the electrolytic cells and transmit the real-time state data to a central voice alarm decision-making unit through work area interchangers and a plant area interchanger, wherein all the electrolytic cell controllers within each work area are connected with the corresponding work-area grade interchanger in the work area, and all the work-area grade interchangers are connected with the plant grade interchanger; 2, the central voice alarm decision-making unit conducts conventional analysis and multi-frequency dimensional analysis on the real-time state data to identify whether failure exists or not, and if the failure exists, alarm information is generated; 3, the central voice alarm decision-makingunit transits the alarm information of the electrolytic cell in failure to a work area grade voice alarm device of the work area where the electrolytic cell in failure is located; and 4, the corresponding work area grade voice alarm device drives a loudspeaker to broadcast the received alarm information. By means of the method and system, locating and alarm giving can be achieved more efficientlyand more precisely.

Description

Technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and specifically relates to a fully distributed voice early warning method and system for an aluminum electrolysis cell. Background technique [0002] Aluminum electrolysis is a complex electrochemical production process with multi-variable, nonlinear time-varying, high temperature and strong current. There are multiple coupled physical fields such as electricity-magnetic-heat-current-concentration fields. In addition, during the electrolysis process, Process parameters such as the distribution of multi-physics, current density, electrolysis temperature, electrolyte molecular ratio, and the shape of the chamber are all related to each other. These factors work together to cause various types of abnormal cell conditions in the electrolysis process, such as abnormal cell voltage, anode Abnormal effects, abnormal blanking and material balance, etc. Once these abnormal cell conditions occur,...

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Problems solved by technology

Finally, coupled with the large scale of the current aluminum electrolysis enterprises (the average production capacity of a single plant has exceeded 300,000 tons), the number of electrolytic cells in a single electrolysis plant is often as many as 300, resulting in a large number of failures, resulting in a very high pressure on the voice system. Huge, and the alarm broadcast lags seriously. On the other hand, for each work area, most of the content is the content of other areas that they do not care about

Therefore, the single alarm mode of the whole plant often misses the alarm information, which seriously affects the progress of production.

In addition, because the traditional voice broadcasting method uses the sound card system of the industrial computer to drive the power amplifier to push the on-site speakers to broadcast, it is necessary to connect a long audio cable or broadcasting cable between the interface machine and the site, which greatly increases the investment cost and the possibility of failure.

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