Novel energy-saving non-circular and non-cylindrical series ore heating furnace

Abstract

The invention relates to a novel energy-saving non-circular and non-cylindrical series ore heating furnace and a calcium carbide furnace. The series furnace is put forward on a basis of the study of deep smelting principles of a plurality of smelting types and on a basis of a plurality of professional factors and has great potential for generalization, and can be used for smelting calcium carbide, yellow phosphorus, silicon series, manganese series, chromium series, nickel series, ferrotungsten, ferrotitanium and other metal alloys or ferroalloy in an open or sealed manner. If cooperated withother integrated assorted apparatuses and a digital operation mode, the series furnace can greatly reduce 5-15 percent per ton of electricity consumption for various smelting and increase the yield by 5-30 percent in the case of using domestic common raw materials, can use raw materials with lower grade for smelting so as to meet various smelting electricity consumption indexes required currentlyin China and is beneficial for the safe and stable operation of an environment-friendly dedusting apparatus and the implementation of unmanned-control smelting technology of ore heating furnaces, andhas great development potential when used on various large sealed ore heating furnaces of over 25,000 kw.

Description

Technical field: [0001] The invention is a comprehensive technology and design for a new series of energy-saving submerged arc furnaces and the design of other supporting equipment and materials for the submerged arc furnaces. [0002] For any smelting submerged arc furnace and calcium carbide furnace industry, changes in the geometry and size of the smelting furnace and corresponding devices will directly affect the smelting process, smelting effect, smelting energy saving efficiency and energy consumption per ton. [0003] This patent can be applied to all closed, semi-closed and open submerged arc furnaces, and can be used to smelt calcium carbide, yellow phosphorus, silicon series (ferrosilicon, silicon calcium, silicon barium, metal silicon, etc.), manganese series (ferromanganese, silicon manganese, Metal manganese, etc.), chromium or nickel series, ferromolybdenum, ferro-tungsten, ferro-titanium and other submerged arc furnaces, the power supply mode can be DC, low freq...

AI Technical Summary

Problems solved by technology

This patented technology can solve the problems of high unit consumption and long-term stable operation of many existing submerged arc furnaces and calcium carbide furnaces. It is used for small furnaces below 20,000KVA (kilowatts) and is more scientific and energy-saving than traditional furnaces. The electrodes are inserted well. For large-scale submerged arc furnaces above 25000KVA (kilowatts), the expected electrode insertion and comprehensive power saving and energy saving effects will be very significant

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