Hollow glass microbead-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof

Abstract

The present invention relates to the field of recarburizing agents, particularly to a hollow glass microbead-doped porous efficient recarburizing agent recycling waste graphite electrode, and a preparation method thereof. According to the present invention, waste graphite electrode is adopted as a carbon material, and water glass, ammonium bicarbonate, polyethylene glycol 400 and other composite materials are used to prepare a binder; after the recarburizing agent is subjected to a high temperature firing process, the recarburizing agent has characteristics of compact and porous structure, and rapid fusion; with the added hollow glass microbeads, nanometer titanium dioxide and other ingredients, the thermal stability of the material can be improved, the impact resistance of the product can be improved, and the recarburizing process can be accelerated; silicon micro-particles are adhered on the material surface through the dried silica sol sprayed on the billet material surface so as to promote the smelting solution graphitization process and improve the material utilization rate; and the prepared recarburizing agent has characteristics of high carbon content, stable form performance, rapid and efficient recarburizing, high performance price ratio of the finished product, and effective metal product quality improving.

Description

technical field [0001] The invention relates to the field of recarburizers, in particular to a porous high-efficiency recarburizer doped with hollow glass microspheres for reusing waste graphite electrodes and a preparation method thereof. Background technique [0002] During the smelting process, the carbon content in the material did not reach the expected standard due to improper ingredients, charging or excessive decarburization, which directly affected the performance of the product. Therefore, it is necessary to add a carburant during the production process. The recarburizer helps to reduce the cost of smelting production, improve the quality of smelted metals and castings, and improve the efficiency; commonly used recarburizers include artificial graphite, calcined petroleum coke, natural graphite, coke, anthracite and compounds composed of these materials However, these materials have defects such as high cost, high impurity content, poor melting effect, and low util...

AI Technical Summary

Problems solved by technology

[0002] During the smelting process, the carbon content in the material did not reach the expected standard due to improper ingredients, charging or excessive decarburization, which directly affected the performance of the product. Therefore, it is necessary to add a carburant during the production process. The recarburizer helps to reduce the cost of smelting production, improve the quality of smelted metals and castings, and improve the efficiency; commonly used recarburizers include artificial graphite, calcined petroleum coke, natural graphite, coke, anthracite and compounds composed of these materials However, these materials have defects such as high cost, high impurity content, poor melting effect, and low utilization rate in actual use.