Energy-saving method and device of lengthwise graphitization furnace

Abstract

The invention discloses an energy-saving method and device of a lengthwise graphitization furnace. According to the method, air is used as a carrier, normal temperature air is blown into air channels through an air blower and is heated after passing through the air channels to take away a large amount of heat energy generated after the graphitization process is finished, thereby cooling materials which is already subjected to the graphitization process; and heated air which carries a large amount of heat energy is fed into furnace pit air channels of new materials needing to be graphitized and preheats the low-temperature materials needing to be heated, and power consumption needed by powering on and temperature rise of the low-temperature materials is reduced. By means of the device implementing the energy-saving method, waste heat energy is reused for the technological process, the cooling speed of the high-temperature materials is increased, therefore, the number of constructed furnace pits is reduced, and the initial temperature of the new materials can be rapidly raised. The energy-saving method and device of the lengthwise graphitization furnace have the advantages that the structure is simple; heating power consumption is reduced; the floor space is small; the equipment and civil engineering investment is reduced; cooling of the high-temperature materials and reutilization of heat of the lengthwise graphitization furnace are achieved; and energy is saved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of waste heat utilization of graphitization furnaces, in particular to an energy-saving method and device for connecting graphitization furnaces in series. Background technique [0002] Graphitization furnaces are used to produce steelmaking carbon anode materials, battery negative electrode materials, carbon fibers, graphite heat-conducting materials, crucibles, carburizing agents, carbon composite materials and other special carbon material products. In various industrial smelting electric furnaces, a large amount of carbon will be consumed Carbon electrodes (made of carbon raw materials such as coal and coke, generally cylindrical, with diameters ranging from tens of millimeters to thousands of millimeters, and lengths ranging from hundreds of millimeters to thousands of millimeters), graphite electrodes are required in many places with high process requirements. To reduce resistance and reduce electrode ...

AI Technical Summary

Problems solved by technology

Such a high-temperature material is enriched with a considerable amount of heat energy. After natural cooling, the heat energy is completely lost, and the heat energy loss is huge.

[0006] 3. It takes a long time to adopt the natural cooling method, and a large number of furnace pits cannot be put into production after waiting for cooling, which seriously affects the production efficiency

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