Method for producing graphite material with Acheson graphitization furnace

Abstract

The invention relates to a method for production of graphite electrode with Acheson graphitization furnace, comprising the steps of using wasted electrode carbon block of steel factory or aluminum factory as raw material and producing graphite material with excellent performance index through charging furnace, electric heating, cooling, out of furnace and other steps. The method for production of graphite electrode with Acheson graphitization furnace has such advantages as fully utilizing waste, reflecting the concept of environmental protection and sustainable utilization of energy, achieving high energy utilization ratio and product yield with low power consumption, and effectively reducing the production cost of the graphite material. In addition, toxic gases are not produced in the production process, which greatly reduces the harm of production personnel and the environment, and thus has very high application value and social value.

Description

technical field [0001] The invention relates to the production field of graphite materials, in particular to a method for producing graphite materials with an Acheson graphitization furnace. Background technique [0002] Acheson graphitization furnace has been widely used in my country because of its simple structure, sturdy and durable, easy maintenance, and convenient operation. It is the main graphitization equipment in the carbon industry. In the prior art, the process of using the Acheson graphitization furnace to produce graphite materials is to lay petroleum coke in layers in the furnace, and lay a conductive heating core corresponding to the conductive electrode at the furnace head and furnace tail. The space occupied by the petroleum coke and the conductive heating core is Furnace core, the periphery of the furnace core is filled with thermal insulation material mixed with coke powder and quartz sand. After being fed with direct current, the conductive heating core ...

AI Technical Summary

Problems solved by technology

[0003] 1. Pollution of the environment

The existing raw materials for the production of graphite materials are petroleum coke, which has a high sulfur content, and a large amount of harmful sulfur-containing gases will be produced during the graphitization process, causing environmental pollution;

[0004] 2. High electricity consumption

On the one hand, the existing technology mainly heats up the petroleum coke through the conductive heating core, which consumes a large amount of electric energy for heating the conductive heating core, and the energy consumption is high; on the other hand, due to the Acheson graphitization furnace itself Structural features cause the furnace surface to lose heat to the surrounding space, so the longer the heating time, the more heat will be lost, while the heating time of the existing technology is as long as 25 to 35 hours, and the heat loss is very serious

Both of the above two aspects lead to low energy utilization rate, and the power consumption per ton of raw materials in actual production is as high as 4000-5500kW·h, which is not environmentally friendly and increases production costs

[0005] 3. Low actual yield

Raw material petroleum coke contains high volatile matter, the amount of product obtained after graphitization is greatly reduced compared with the amount of raw material, that is, the actual yield is low, only 60% to 70%, resulting in higher product cost

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