Hot galvanizing furnace nose humidifying device
A technology for humidifying devices and furnace noses, which is applied in the hot-dip plating process, coating, metal material coating process, etc., can solve the problems of high cost, affecting normal production, and large impact, so as to avoid the occurrence and avoid zinc dust defects Effect
Inactive Publication Date: 2019-05-21
MAANSHAN IRON & STEEL CO LTD
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Problems solved by technology
Among them, the traditional dew point is controlled by a humidifier. Zinc vapor has a great influence on the dew point meter, and the control accuracy is not high. The effect is not obvious if the dew point control is low. If the dew point control is high, oxidation will occur, resulting in adverse effects such as missed plating. In addition, condensation in winter The water phenomenon is serious; the furnace nose is knocked manually, and the furnace nose is manually purged of zinc ash when the machine is shut down, which seriously affects the normal production, and the maintenance of normal production time is short, the cost is high and the effect is not obvious
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Embodiment Construction
[0028] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.
[0029] A humidifying device for humidifying the nose of a hot-dip galvanizing furnace, comprising an air intake mechanism, a water storage tank 2 and an exhaust mechanism, the air intake mechanism is connected to the water storage tank 2, and the exhaust mechanism is connected to the water storage tank 2 are connected; the air intake mechanism includes a main air intake pipe 27, the main air intake pipe 27 communicates with the water storage tank 2 through a branch air intake pipe 25, the main air intake pipe 27 is connected with a mixing pipe 28, The mixing pipe 28 extends toward the side close to the furnace nose 20; the end of the branch air intake pipe 25 away from the main air intake pipe 27 is below the liquid level of the water storage tank 2; the exhaust mechanism includes an exhaust...
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The invention relates to the technical field of cold rolling production, in particular to a hot galvanizing furnace nose humidifying device. The humidifying device comprises an air intake mechanism, awater storage tank and an exhaust mechanism. The air intake mechanism is connected with the water storage tank. The exhaust mechanism is connected with the water storage tank. The air intake mechanism comprises a main air inlet pipeline. The main air inlet pipeline communicates with the water storage tank through a branch air inlet pipeline. The main air inlet pipeline is connected with a mixingpipeline. The mixing pipeline extends towards the side close to a furnace nose. The exhaust mechanism comprises an exhaust pipeline. One end of the exhaust pipeline is connected with the water storagetank, and the other end of the exhaust pipeline is connected with the mixing pipeline. According to the hot galvanizing furnace nose humidifying device disclosed by the invention, zinc steam can be prevented from condensing at the furnace nose to form zinc ash defects through mixed nitrogen of dry nitrogen and wet nitrogen, and accordingly, the zinc ash defects cannot be formed at the furnace nose.
Description
technical field [0001] The invention relates to the technical field of cold rolling production, in particular to a humidifying device for humidifying the nose of a hot-dip galvanizing furnace. Background technique [0002] At present, the improved Sendzimir process technology is widely used in the hot-dip galvanizing production line after cold rolling. It adopts the alkaline electrolytic degreasing technology. Preheating, heating, soaking and recrystallization annealing are carried out through an annealing furnace with nitrogen and hydrogen protective gases, and after cooling, it enters the zinc pot under the condition of sealing and hot-dip galvanizing with sinking rolls. and thickness, and then cooled to the finished product after post-processing. [0003] The furnace nose is the device where the annealing furnace enters the zinc pot. Zinc ash defects are mainly formed by the condensation of zinc vapor on the zinc liquid surface in the furnace nose. , Even exposed iron a...
Claims
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IPC IPC(8): C23C2/06
Inventor 许翔汪红兵丁钢
Owner MAANSHAN IRON & STEEL CO LTD