Electric furnace flue gas capture technology
The semi closed cover is composed of a fixed cover and a movable cover, and the movable cover can be moved to the top of the transformer chamber. The semi closed cover has been widely used in the dust removal system of medium and small electric furnace in recent years. Its advantages are as follows: the system has less ventilation, higher efficiency of gas capture, and relatively low cost of investment and operation. The semi closed cover can completely capture the flue gas when the electric furnace is smelted, but the efficiency of the flue gas capture is not high. The switch of the semi closed cover has a certain influence on the smelting cycle.
Diversion roof cover The guide cover is composed of a fixed cover and a moving guide cover. The fixed deflector is arranged on the charging side and behind the furnace, and the mobile deflector is arranged above the transformer chamber of the furnace. When feeding, the moving guide cover moves to the top of the transformer chamber and moves to the furnace body area. The moving guide and the fixed guide cover are surrounded by the electric furnace, which forces the flue gas to rise in the range of the guide cover. When the flue gas rises to the cover of the guide cover, it is only 5m distance from the cover cover of the roof, greatly reducing the influence of the horizontal air flow in the workshop. . After running and debugging, the movable cover can be fixed in one position without moving, only when it is repaired, it reduces the operation steps.
The roof cover is an inner and outer double-layer structure, and the inner cover traps smoke discharged from the diffuser through the diffuser, and the outer cover traps the overflow flue gas.
The diversion roof cover can eliminate the flue gas generated during the smelting process, which is more conducive to meet the environmental requirements and is simple in operation. The drawback is that the exhaust volume is large and the cost of investment and operation is high.
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