High-calorific-value iron powder composite fuel and preparation method thereof

Abstract

The invention discloses a high calorific value iron powder composite fuel and a preparation method thereof.The composite fuel is mainly composed of, by weight, 30%-50% of silicon powder, 50%-70% of iron powder and 30%-50% of composite powder, the composite powder is prepared by mixing and sintering silicon powder and iron powder, and the iron powder wraps the composite powder. And the iron powder coating the composite powder accounts for 10-30% of the composite powder by weight. The preparation method comprises the steps of binder preparation, slurry preparation, composite powder preparation, composite powder wetting, powder mixing, drying and packaging. The iron powder and the silicon powder are compounded, so that the iron powder-silicon powder fuel has stable performance in a normal-temperature state, is safe and reliable in transportation and use processes, has the characteristics of good combustibility, no agglomeration and high calorific value, and solves the problems that the existing single iron powder fuel is low in combustion calorific value and cannot provide sufficient heat energy.

Description

technical field [0001] The invention relates to the field of preparation of new materials, in particular to a high calorific value iron powder composite fuel and a preparation method thereof. Background technique [0002] As the world's largest carbon emitter, China has a heavy responsibility in tackling climate change. Facing the increasingly prominent pressure on energy security and greenhouse gas emission reduction, research on "alternative fuels" has become an urgent task. As a new fuel with high calorific value, metal fuel has a much higher energy density than fossil fuels such as coal, oil, and natural gas, and does not produce harmful gases such as sulfur oxides and nitrogen oxides during combustion. [0003] There are abundant metal mineral resources on the earth, and the metal smelting technology is mature, which can provide a solid foundation for the application of metal fuels. Patent "A Nanoscale Iron Powder Fuel Power Generation Method and Device" (Application ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high calorific value iron powder composite fuel and its preparation method. Through the composite of iron powder and silicon powder, the performance is stable at room temperature, the transportation and use process is safe and reliable, and it has good combustibility, non-agglomeration, thermal The characteristic of high value solves the problem that the existing single iron powder fuel has low combustion calorific value and is not enough to provide sufficient heat energy

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