Combustion apparatus for r.p.f boiler

Abstract

The invention relates to a solid fuel boiler for combusting solid fuel and utilizing the generated heat, in particular, relates to a combustion train for the solid fuel boiler, which is characterizedin that combustion efficiency is enhanced by arranging a screw air nozzle on the combustion furnace and ash is combusted again; the solid fuel is combusted in the combustion furnace, and the heat andpyrogenic distillation gas are recovered and utilized by re-combustion to produce warm water and hot wind. The inflamed gases can be discharged outwardly through a subarid absorptive tower and a filter collector; a screw air nozzle is disposed on the downstepped grate for burning solid fuel in the combustion furnace to make the combustion air generate cyclone and be fed into the combustion furnace. An air nozzle for supplying combustion air to re-combust the solid fuel of incomplete combustion is disposed at the two sides of the inlet for discharging the combustion ash.

Description

technical field [0001] The present invention relates to a combustion device for a boiler for solid fuel, and more particularly, to a boiler for solid fuel that utilizes the heat generated by the combustion of solid fuel (R.P.F: Refuse Plastic Fuel, R.D.F: Refuse Derived Fuel). By setting the spiral air nozzle on the combustion furnace, the combustion efficiency is improved, and the burned ash is burned again, so as to prevent the waste of fuel and maximize the fuel efficiency. Background technique [0002] Solid fuel (R.P.F: Refuse Plastic Fuel, R.D.F: Refuse Derived Fuel), which is one of the alternative energy sources developed due to the depletion of petroleum resources, refers to the screening of combustible waste generated in factories and domestic waste. , separation, and then through crushing, drying, compression, dechlorination, adding additives, fixed molding and other processes, the manufactured solid fuel. [0003] The calorific value of this solid fuel is relati...

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Problems solved by technology

[0007] The above-mentioned combustion process utilizes the blower to directly disperse the combustion air supplied to the combustion furnace (100) through the air nozzle, so that the supplied air is uneven and biased. It cannot be fully mixed with the solid fuel, so the non-combustion rate of the fuel is relatively high, and its combustion efficiency will not be high

[0008] In addition, in the combustion process with a high non-combustion rate, a large amount of incompletely burned solid fuel is discharged, resulting in a large waste of fuel and other problems.

[0009] That is to say, the ash of the solid fuel burned in the combustion furnace (100) is discharged to the outside through the ash processing device (300), and then transferred and processed by the ash transfer device (600). The ash of incomplete combustion of solid fuel is also discharged to the outside, resulting in a large waste of fuel, resulting in problems such as reduced combustion efficiency and thermal efficiency.

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