Efficient, environment-friendly and safe powder body combustion system of industrial kiln

Abstract

The invention discloses an efficient, environment-friendly and safe powder body combustion system of an industrial kiln. The efficient, environment-friendly and safe powder body combustion system comprises a solid fuel ultra-refining device, a feeding device, a micro powder modifying device, a powder body conveying control and distribution safe device, a combustor and a hearth, wherein the solid fuel ultra-refining device is connected with the powder body inlet of the feeding device; the powder body outlet of the feeding device is connected with the material inlet of the micro powder modifying device; the micro powder modifying device is connected with the combustor through the powder body conveying control and distribution safe device; the combustor is arranged in the hearth; and the combustor is connected with a high-pressure fan so as to supply high-pressure air for combustion. The efficient, environment-friendly and safe powder body combustion system has the advantages that: powder body fuels have longer combustion time, can be fully combusted, and is high in heat release value, low in residual amount and emitted amount, so the system is high in environment friendliness.

Description

technical field [0001] The invention relates to an industrial kiln combustion system, in particular to an efficient, environmentally friendly and safe powder combustion system for an industrial kiln. Background technique [0002] my country is a big country of energy consumption. In the total energy consumption of the country, coal accounts for more than 75% and oil accounts for 17%. As the most important thermal energy conversion equipment, boilers are widely used in various industries such as power stations and industries. The thermal efficiency of traditional boilers generally can only reach 80% to 85%. How to improve the thermal efficiency of the existing boiler system is of great significance to my country's energy saving. [0003] For direct combustion of solid fuels such as coal, there are often deficiencies such as insufficient combustion, low calorific value released, and serious pollution emissions. In order to improve the combustion efficiency, the prior art ge...

AI Technical Summary

Problems solved by technology

The problem with this mode of operation is that the primary air volume is limited, and it cannot provide enough oxygen for powder fuel combustion, so the combustion efficiency is low, and the calorific value of the fuel cannot be fully released. At the same time, there are many residues after combustion, and the emission pollution is serious.

In addition, according to the characteristics of combustion and feeding, the pressure required for powder fuel transportation is low to retain sufficient heating and combustion time, which is convenient for fully heating the powder fuel and making combustion more complete; while the pressure of the air supply should be relatively high, so that it can Provide enough oxygen; the existing burner cannot solve this problem; moreover, the existing burner cannot provide the cyclone, nor can it control the angle of the air supply air flow, adjust the firepower, and adjust the length and diameter of the flame

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