Gasification furnace and gasification method thereof
A gasifier and mixed gas technology, applied in the field of coal gasification, can solve problems such as low effective gas content
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Embodiment 1
[0054] Applied to the top single burner 3 gasifier, combined with figure 1 , figure 2 and image 3 As shown, the designed coal input (dry basis) is 1000t / d, the pressure is 4.0MPa, and the first insulation layer 12 is made of refractory bricks. The top of the gasifier is a three-channel burner 3, and the burner 3 channels (from inside to outside) are respectively central oxygen, coal water slurry and annular oxygen, wherein the central oxygen accounts for about 20% of the total oxygen. The above-mentioned primary reaction chamber 1 is a fully mixed flow reactor, and the height H of the primary reaction chamber 1 1 4m, diameter φ 1 is 2.134m, the aspect ratio is 1.87, and the volume is 15m 3 . The secondary reaction chamber 2 is a plug flow reactor with a height H 2 3m, diameter φ 2 is 0.91m, the aspect ratio is 3.29, α is 15°, and the volume is 2.4m 3 .
[0055] Such as image 3 As shown, the periphery of the primary reaction chamber 1 is provided with eight first h...
Embodiment 2
[0059] Applied to top-mounted single-burner 3 gasifiers, such as Figure 4 As shown, the designed coal input (dry basis) is 1500t / d, the pressure is 4.0MPa, the first heat insulation layer 12 adopts a water wall; the top is a two-channel burner 3, and the burner 3 channels (from the inside to the outside) are respectively For oxygen and pulverized coal. The primary reaction chamber 1 is a fully mixed flow reactor with a height H 1 4m, diameter φ 1 2.7m, height-to-diameter ratio 1.48, volume 25m 3 . The secondary reaction chamber 2 is a plug flow reactor with a height H 2 3.5m, diameter φ 2 is 0.96m, the aspect ratio is 3.64, α is 15°, and the volume is 3m 3 , the second heat insulation layer 18 is made of a water-cooled wall.
[0060] The primary reaction chamber 1 is provided with eight first high-temperature thermocouples 16, every four first high-temperature thermocouples 16 are on the same plane, and a pair of first high-temperature thermocouples 16 on the upper and...
Embodiment 3
[0062] Applied to side multi-burner 3 gasifiers, combined with Figure 5 and Figure 6As shown, the designed coal input (dry basis) is 1500t / d, the pressure is 6.5MPa, the first insulation layer 12 is made of refractory bricks; the side part is four three-channel burners 3, and the burner 3 channels (from inside to Outer) are central oxygen, coal water slurry and annular gap oxygen respectively, wherein central oxygen accounts for about 18% of the total oxygen. Primary reaction chamber 1 is a fully mixed flow reactor with high H 1 5m, φ 1 is 2.4m, the aspect ratio is 2.08, and the volume is 24m 3 ; The secondary reaction chamber 2 is a plug-flow reactor, and the second insulation layer 18 selects refractory bricks, and the high H of the secondary reaction chamber 2 2 3.5m, diameter φ 2 is 0.96m, the aspect ratio is 3.64, α is 15°, and the volume is 3m 3 .
[0063] Such as Figure 6 As shown, the outer circumference of the primary reaction chamber 1 is provided with nin...
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