Kiln catalytic combustion method and device

Abstract

The invention discloses a kiln catalytic combustion method and device which can be applied to kilns taking heavy oil, or pulverized coal or biomass as fuel. The method is characterized in that a water electrolyzing oxyhydrogen gas pipeline is additionally arranged on a blast pipeline of a kiln, oxyhydrogen gas generated by a water electrolyzing oxyhydrogen generator is mixed with air according to the proportion of 0.1% to 0.3%, and the mixture is blown into a kiln hearth to serve as a combustion catalyst from the bottom and one side surface of the kiln hearth. The device comprises the kiln hearth, wherein a grate is arranged in the kiln hearth; the blast pipeline is mounted under and on one side face of the grate; a blower is arranged at the tail end of the blast pipeline; the water electrolyzing oxyhydrogen gas pipeline is arranged in the middle section of the blast pipeline; a valve is arranged at the front end of the water electrolyzing oxyhydrogen gas pipeline; and the water electrolyzing oxyhydrogen generator is arranged at the tail end of the water electrolyzing oxyhydrogen gas pipeline. As the mixture obtained by mixing the oxyhydrogen gas generated by the water electrolyzing oxyhydrogen generator and air according to the proportion is added in the combustion process of the kiln to serve as the combustion catalyst, and enters the combustion space of heavy oil, or pulverized coal or biomass for mutual combustion, the combustion efficiency of the fuel can be improved.

Description

technical field [0001] The invention relates to a method and a device for catalytic combustion of a kiln, in particular to a method and a device for catalytic combustion of a kiln by using hydrogen-oxygen mixed gas. Background technique [0002] Industrial kilns use the heat generated by fuel combustion or electric energy to process workpieces or materials such as smelting, heating, sintering, cracking, and distillation. They are widely used in metallurgy, building materials, chemicals, light industry, food, and ceramics. , There are many varieties of industrial kilns, high energy consumption, and large impact. They are key equipment for industrial production and are also large energy consumers. [0003] There are more than 800,000 industrial kilns in my country, coal-fired furnaces account for about 64%, oil and gas furnaces account for about 20%, and the annual energy consumption is equivalent to more than 300 million tons of standard coal, accounting for about 40% of my c...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kiln catalytic combustion method and device that can improve the kiln combustion efficiency in view of the low combustion rate of the kiln fuel in the prior art

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