JP3992879B2 - Carbonized gas and carbide mixed treatment burner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dry-burning gas and carbide mixed treatment burner used in a waste treatment facility for gasifying and melting general waste and industrial waste including special management.
[0002]
[Prior art]
Conventionally, general waste and industrial waste have been treated by incineration and landfill. However, the generation of hazardous materials such as dioxins and the land for landfilling are no longer available. Gasification and melting treatment has attracted attention. In the gasification and melting treatment, the waste is pyrolyzed, converted into dry distillation gas and carbide and burned at a high temperature, and the incinerated ash is melted and recovered as slag.
[0003]
According to the waste treatment facility that gasifies and melts waste, discharge of harmful substances such as dioxins, volume reduction and reuse of incineration ash, recovery of resources such as iron and aluminum, and effective use of energy, etc. Is possible.
In a waste treatment facility that gasifies and melts waste, the waste is pyrolyzed in a cracking and gasification furnace to generate dry distillation gas and carbide. The carbide is burned in the melting furnace, and the dry distillation gas is burned in the gas combustion furnace. Combustion, waste is pyrolyzed in cracking and melting furnace to generate dry distillation gas and carbide, carbide is burned in cracking and melting furnace, dry distillation gas is burned in gas combustion furnace, waste is decomposed in gasification furnace There are various types, such as pyrolysis gas to generate dry distillation gas and carbide, and to burn dry distillation gas and carbide in a melting furnace. In each case, dry distillation gas, carbide and combustion air are individually furnaces. It is supplied and burned.
[0004]
A waste treatment facility that burns and processes carbonized gas and carbide in separate furnaces increases the cost of the equipment and requires auxiliary fuel in each furnace, thus increasing the running cost.
On the other hand, a waste treatment facility that burns and processes dry distillation gas and carbide in a single furnace can reduce facility costs and running costs.
[0005]
[Problems to be solved by the invention]
However, even in a waste treatment facility that burns and processes dry distillation gas and carbide in one furnace, dry distillation gas, carbide, and combustion air are separately supplied into the furnace, so that dry distillation gas, combustion air, and carbide Incomplete combustion may result in incomplete combustion or non-uniform temperature distribution in the furnace.
[0006]
The present invention solves the above-mentioned problem in the waste treatment facility for gasifying and melting waste, and efficiently mixing and burning dry distillation gas, carbide and combustion air with a single burner. An object of the present invention is to provide a mixed treatment burner of dry distillation gas and carbide capable of obtaining combustion and uniform furnace temperature distribution.
[0007]
[Means for Solving the Problems]
The mixed distillation burner of carbonized gas and carbide according to the present invention is a waste treatment facility that gasifies and melts waste to supply the generated dry distillation gas and carbide together with the heated combustion air to burn. Carbonized gas supplied from the supply chute and heated combustion air supplied from the heated combustion air nozzle and mixed with the heated combustion air to be ejected from the tip of the mixing nozzle. The above-described problem is solved by providing a swivel cone.
[0008]
In a waste treatment facility for gasifying and melting waste, generated carbides are supplied to a mixing nozzle from a carbide supply chute of a mixing treatment burner. At the same time, the heated combustion air is supplied to the mixing nozzle from the heated combustion air nozzle, and the carbide and the heated combustion air are mixed by the venturi effect and ejected from the tip of the mixing nozzle.
On the other hand, the dry distillation gas is supplied to the dry distillation gas swirl cone. The dry distillation gas that has flowed into the dry distillation gas swirl cone is swirled and ejected from the periphery of the tip of the mixing nozzle, so that it is collided with a mixture of carbide and heated combustion air at the outlet of the mixing treatment burner.
[0009]
Thus, stable combustion is achieved by pre-mixing the carbide with poor mixed combustion effect with the heated combustion air with the mixing nozzle, and mixing this mixture with the ignitable dry distillation gas at the outlet of the mixing treatment burner and burning it. And a uniform furnace temperature distribution can be obtained.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a longitudinal sectional view of a dry distillation gas and carbide mixing treatment burner according to an embodiment of the present invention, FIG. 2 is a plan view of a dry distillation gas and carbide mixing treatment burner, and FIG. 3 is a dry distillation gas and carbide mixing. FIG. 4 is an explanatory view of the mixing action of the mixed processing burner of dry distillation gas and carbide.
[0011]
This mixing treatment burner 1 is provided with a mixing nozzle 2 and a dry distillation gas swivel cone 3 provided around the mixing nozzle 2, and in a waste treatment facility for gasifying and melting waste, Used in a furnace for burning gas and carbide.
The mixing nozzle 2 is cylindrical and is provided with a conical dispersion plate 4 at the front end and a heated combustion air nozzle 5 at the rear end. A carbide is provided on the side surface of the mixing nozzle 2 near the front end position of the heated combustion air nozzle 5. The tip of the supply chute 6 is open.
[0012]
The dry distillation gas swirl cone 3 has a cylindrical shape at the top and a funnel shape at the bottom, and a gas supply pipe 7 through which dry distillation gas G flows in a tangential direction is provided on the upper outer peripheral surface.
In the waste treatment facility for gasifying and melting waste, the generated carbide C is supplied from the carbide supply chute 6 of the mixing treatment burner 1 to the mixing nozzle 2. At the same time, the heating combustion air A is supplied to the mixing nozzle 2 from the heating combustion air nozzle 5, and the carbide C and the heating combustion air A are mixed by the venturi effect at the tip of the heating combustion air nozzle 5. Colliding with the dispersion plate 4, a mixture of the carbide C and the heated combustion air A is ejected from the periphery.
[0013]
On the other hand, the dry distillation gas G is supplied from the gas supply pipe 7 to the upper part of the dry distillation gas swivel cone 3. The dry distillation gas G flows in a tangential direction with respect to the dry distillation gas swirl cone 3, and is swirled around the mixing nozzle 2 in the dry distillation gas swirl cone 3 and ejected from the periphery of the mixing nozzle 2. At the outlet 8 of the treatment burner, it is impinged with a mixture of carbide C and heated combustion air A.
[0014]
In this way, the carbide C having a poor mixed combustion effect is premixed with the heated combustion air A by the mixing nozzle 2, and this mixture is mixed with the dry distillation gas G having good ignitability at the outlet 8 of the mixing treatment burner 1 and burned. Thus, stable combustion can be performed and a uniform furnace temperature distribution can be obtained.
[0015]
【The invention's effect】
As described above, the dry distillation gas and carbide mixing treatment burner of the present invention efficiently mixes dry distillation gas, carbide and combustion air with a single burner in a waste treatment facility for gasifying and melting waste. And stable combustion and uniform temperature distribution in the furnace can be obtained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a dry distillation gas and carbide mixed treatment burner according to an embodiment of the present invention.
FIG. 2 is a plan view of a mixed distillation burner of carbonized gas and carbide.
FIG. 3 is a bottom view of a mixed distillation burner of carbonized gas and carbide.
FIG. 4 is an explanatory view of a mixing action of a mixed distillation burner of carbonized gas and carbide.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mixing process burner 2 Mixing nozzle 3 Dry distillation gas swirl cone 4 Dispersion plate 5 Heating combustion air nozzle 6 Carbide supply chute 7 Gas supply pipe A Heating combustion air C Carbide G Dry distillation gas

Claims (1)

In a waste treatment facility for gasifying and melting waste, a dry distillation gas and carbide mixed treatment burner for supplying and burning the generated dry distillation gas and carbide together with heated combustion air, which is supplied from a carbide supply chute A dry distillation gas swirl cone was provided around the mixing nozzle that mixed carbide and heated combustion air supplied from the heated combustion air nozzle and spouted from the tip, and swirled the dry distillation gas and spouted from the periphery of the mixing nozzle. A carbonization mixed gas and carbide burner.

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