Space-time uniform distribution system for a tank liquid temperature field of an anode film-making tank and regulation and control method of space-time uniform distribution system

Abstract

The invention provides a space-time uniform distribution system for a tank liquid temperature field of an anode film-making tank, the film-making tank comprises an outer shell, a thermal insulation layer, a steel structure inner cavity with a tetrafluoro lining and a top cover, a plurality of anode plates and cathode plates are arranged in the film-making tank, the anode plates and the cathode plates are alternately arranged at equal intervals, a plurality of heating temperature control units are arranged on the membrane preparation tank, are arranged between the anode plate and the cathode plate in parallel, are independently controlled and do not interfere with one another, and are adaptive to power heating according to the requirements of different temperature control areas; and according to the intelligent heating temperature control method, the optimal heating power can be adapted under any environment condition, space-time uniform distribution of the temperature field of the film making bath solution is achieved, rapidness, accuracy and stability of heating and temperature maintaining are considered, and a uniform and stable temperature condition guarantee is provided for efficient film making on the surface of the lead-based anode.

Description

technical field [0001] The invention belongs to the technical field of hydrometallurgy, and in particular relates to a system for evenly distributing the temperature field of an anodic film-making tank in time and space and a control method thereof. Background technique [0002] Hydrometallurgical industries such as electrolytic zinc and electrolytic manganese generally use lead alloy plates with a lead content of more than 99% as anodes. Lead-containing wastewater, manganese ions in the electrolyte are catalyzed and oxidized on the surface of the anode to produce a large amount of manganese dioxide, which mixes with part of the lead released from the anode to form a large amount of anode slime hazardous waste, resulting in serious resource loss, environmental pollution and health. damage. [0003] By prefabricating a layer of protective film on the surface of the lead-based anode, it is possible to block the anode lead corrosion from the source, and at the same time reduce...

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Problems solved by technology

Due to the large size of the anode plate, the actual film production process performs batch film production on multiple anode plates in a single tank, but there are differences in the spatial distribution of the temperature field of the anode plates in different spatial positions and in different micro-zones of a single anode plate, which will cause This leads to inconsistencies in the deposition efficiency of plates in different spatial positions and in different regions of a plate, resulting in a large difference in the dense continuity and crystal structure of the film layer on the surface of the anode plate, which in turn affects the lead control and sludge reduction effect of the film-made anode plate. How to promote the uniformity of temperature field distribution in different time and space of different film-forming bath liquids is very important for achieving uniform and stable film-forming on the surface of lead-based anodes

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