Multi-layer loop multi-flame hole flameless ceramic burner and using method thereof
A ceramic burner and burner technology, applied to blast furnace parts, furnaces, heating furnaces, etc., can solve the problems of uneven air distribution in the regenerator, affecting the heat exchange effect of the regenerator, and affecting the structural strength of the fire wall in the combustion chamber, etc. , to achieve the effect of large thermal load adjustment range
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Embodiment 1
[0031] Example 1: The present invention provides a single-set multi-layer ring multi-fire hole flameless ceramic burner with a structure such as figure 1 , 2 As shown in 3, the present invention is based on the existing burner with two air inlets, two layers of annular channels, one layer of mixing channels, and one layer of combustion zone structure, in each set of flameless ceramic burners. An air inlet, a layer of annular channels, a layer of mixing channels and a layer of combustion zone with multiple fire holes are added to form a flameless ceramic burner with three air inlets, a multilayer ring and multiple fire holes.
[0032] See figure 1 , The three air inlets are respectively the lower gas inlet 1 and the upper gas inlet 7 provided in the burner. An intermediate air inlet 4 is provided between the two gas inlets. The burner is used for top combustion hot air The furnace burns blast furnace gas. Since the gas flow rate is greater than the air flow rate, the amount of air ...
Embodiment 2
[0038] Example 2: The present invention provides a single-set multi-layer ring multi-fire hole flameless ceramic burner, see Figure 4 Its structure is basically the same as that of Embodiment 1, except that the air inlet and channel are interchanged with the gas inlet and channel. The lower air inlet 17 is connected to the lower air ring, and the upper air inlet 19 is connected to the air The upper ring is connected, the gas inlet 18 is connected with the gas ring, and the gas ring is designed to have a different size from the upper air ring and the lower air ring according to needs, and the upper gas nozzle and the lower gas nozzle in the gas ring The size is also different to ensure that the gas has different air and gas distribution ratios in the upper fire hole layer and the lower fire hole layer.
Embodiment 3
[0039] Example 3: The present invention provides a method of using 3 sets of multi-layer ring multi-fire hole flameless ceramic burners in combination. Its structure is that each set of burners are arranged in order from top to bottom. The air and gas of each set of burners Corresponding to have independent air inlets, but each set of burners contains multi-layer loops, mixing channels and fire holes of different sizes.
[0040] The control of the entire combustion system for the combination of 3 sets is: each set of burners are arranged up and down between the loops and fire hole layers, and the combustion heat load and combustion air distribution between the fire hole layers in the burner are in accordance with Scale setting. For the combustion load distribution ratio, the combustion load decreases sequentially from top to bottom, that is, the amount of gas burned in the upper fire hole layer accounts for a larger proportion of the total gas, and the amount of gas burned in the...
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