转炉一次烟气放散烟囱基于热管零能耗的脱白装置

Abstract

本实用新型公开一种转炉一次烟气放散烟囱基于热管零能耗的脱白装置，转炉一次烟气放散烟囱、烟气入口管道、挡水板、分段排水系统、折板除雾器、喉部螺旋式翅片冷却器、旋流器、集水器、上部螺旋式翅片冷却器、点火装置、烟囱封板和重力热管换热器，烟气依次进行预脱水、热管换热冷却、一次脱白、强化冷却、充分冷却、二次脱白和热管换热再热后排入大气，烟气中的水蒸汽充分凝结并被分段去除，烟气的绝对湿度和相对湿度均有效降低，能高效地减少放散烟囱出口的白烟羽和多种污染物，同时全过程不增加外部能源的消耗，脱白效果好，具有较高的性价比，适用于新建和改造项目，尤其适用于对烟囱脱白效果要求较高的情况。

Claims

1. A white smoke removal device based on heat pipe zero energy consumption for converter primary flue gas emission chimney, characterized in that, It includes a converter primary flue gas venting chimney, flue gas inlet pipe, baffle plate, segmented drainage system, baffle plate demister, throat spiral finned cooler, cyclone separator, water collector, upper spiral finned cooler, ignition device, chimney sealing plate and gravity heat pipe heat exchanger. The baffle plate is installed on the inner wall of the flue gas inlet pipe; the baffle plate demister is arranged in the lower straight pipe section of the chimney of the evaporator, which is higher than the gravity heat pipe heat exchanger. The gravity heat pipe heat exchanger includes an evaporator, a condenser, a steam riser, and a liquid downcomer. The evaporator contains a phase change medium and is located in the lower straight pipe section of the chimney, which is higher than the flue gas inlet pipe. The condenser is located in the upper straight pipe section of the chimney, which is below the ignition device. The insulated steam riser and the insulated liquid downcomer are both located outside the chimney and are connected to the evaporator and the condenser. The cyclone separator includes a fixed plate and cyclone blades mounted on the fixed plate. The diameter of the fixed plate is smaller than the diameter of the chimney at its location. One end of the cyclone blades is connected to the fixed plate, and the other end of the cyclone blades is connected to the inner wall of the chimney. The cyclone separator is arranged at the beginning of the upper straight pipe section of the chimney, and the flue gas rises from bottom to top through the gaps between the cyclone blades to generate swirl. The water collector includes a porous annular wall and an annular sealing plate connected to the bottom edge of the porous annular wall. The porous annular wall is uniformly provided with holes. The central hole of the annular sealing plate communicates with the central hole of the porous annular wall. The annular sealing plate connects to the inner wall of the chimney to seal the gap between the bottom edge of the porous annular wall and the inner wall of the chimney. The water collector is arranged between the condenser of the hydrocyclone and the gravity heat pipe heat exchanger. The chimney sealing plate is installed at an angle inside the lower end of the chimney, with its lowest point being lower than the flue gas inlet pipe, which is connected to the lower part of the chimney. The segmented drainage system includes a first drain outlet, a second drain outlet, a third drain outlet, several drain pipes, and a gas drainer. The first drain outlet is located at the bottom of the flue gas inlet pipe, the second drain outlet is located on the chimney at the lowest point corresponding to the bottom of the chimney sealing plate, and the third drain outlet is located on the chimney at the lowest point corresponding to the bottom of the annular sealing plate of the water collector. The first drain outlet, the second drain outlet, and the third drain outlet are all connected to the gas drainer through drain pipes.

2. The once-through flue gas emission stack of the converter based on the heat pipe zero-energy consumption device for removing white smoke according to claim 1, characterized in that: The throat-type spiral finned cooler includes fins spirally wrapped around the outer wall of the chimney throat.

3. The once-through flue gas emission stack of the converter based on the heat pipe zero-energy consumption device for removing white smoke according to claim 1, characterized in that: The upper spiral finned cooler includes fins spirally wrapped around the outer wall of the upper cylindrical body of the chimney.

4. The converter primary flue gas venting chimney based on heat pipe zero-energy consumption desulfurization device as described in claim 1, characterized in that: The water baffle has two sections, which are semi-circular in shape. The two water baffles are staggered and installed on the inner wall of the flue gas inlet pipe. One water baffle is welded to the lower part of the inner wall of the flue gas inlet pipe, and the other water baffle is welded to the upper part of the inner wall of the flue gas inlet pipe.

5. The once-through flue gas emission stack of the converter based on heat pipe zero energy consumption device for white smoke removal according to claim 1, characterized in that: The folding plate demister includes two sets of support beams arranged in parallel at the top and bottom, and multiple folding plates installed between the two sets of support beams. The two ends of the support beams are connected to the inner wall of the chimney.

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