Efficient energy-saving magnesian ramming material prepared by recycling waste magnesite brick materials of cement plant and preparation technology

Abstract

The invention discloses an efficient energy-saving magnesian ramming material prepared by recycling waste magnesite brick materials of a cement plant and a preparation technology. The efficient energy-saving magnesian ramming material is prepared from the recycled waste materials of the cement plant through the preparation technology processes of waste material selecting, classifying, crushing, particle size screening, analyzing, ingredient synthesizing, inspecting, packaging, qualified product warehousing and the like. The MgO content of the prepared efficient energy-saving magnesian ramming material is higher than or equal to 85%, and the product has the advantages of being good in chemical stability, uniform in structure of a pre-reaction sintering layer, high in compactness, good in erosion resistance, high in permeating resistance, good in material impact and wear resistance, high in softening temperature and the like. No bonding agent or water needs to be added in the construction process, blowing-in can be quickly conducted after furnace building, and the service life is 3 times that of magnesite bricks when the efficient energy-saving magnesian ramming material is applied to the furnace bottom of an ore-smelting electric furnace with the power of 16,500. According to the efficient energy-saving magnesian ramming material, the preparation technology procedures are simple, the raw materials are selected from the waste materials of the cement plant, secondary utilization of the waste materials is achieved, the environmental protection and energy saving call of the state is responded, the waste materials can be effectively utilized, natural resources are greatly saved, and the extremely high industrial application value is achieved.

Description

technical field [0001] The invention belongs to the field of magnesia ramming material preparation, in particular to a high-efficiency and energy-saving magnesia ramming material prepared by recycling waste magnesia bricks from cement plants and a preparation process. Background technique [0002] Magnesium ramming material has good chemical stability, erosion resistance, wear resistance, spalling resistance, thermal shock resistance, and is widely used in metallurgy, building materials, non-ferrous metal smelting, chemical industry, machinery and other manufacturing industries. Most of them are bulk materials made of fused magnesia as raw material, mixed with various ultrafine powder additives, fused cement or composite resin as binder, and are prepared according to special preparation processes with different properties. The biggest feature of traditional magnesia ramming material preparation is that it needs to mine or purchase raw materials, which is costly and wastes re...

AI Technical Summary

Problems solved by technology

In this way, not only enterprises need to buy land to accumulate or bury these increasing waste materials, which increases production costs, but also causes a great waste of resources and serious environmental pollution