An end-blown mobile hood zinc fume collection device

Abstract

An end-blown mobile hood zinc fume collection device of the present invention includes a collection device and a fume blowing device. The fume collection hood of the collection device can be moved and stretched on the upper end of the zinc tank through a driving mechanism. The length of the fume collecting hood on the zinc tank is to ensure the normal tinning operation. There is also a lock on the fume collecting hood to prevent the removal of the fume collecting hood during the movement of the moving hood, causing zinc fumes to disperse from the removal part to the environment The smoke blowing device includes two sets of blowing nozzles. The two sets of blowing nozzles are installed on the adjustment brackets distributed up and down, and the angles of the adjustment brackets are independently adjusted by the motors at both ends of the adjustment brackets to change the blowing angle of the blowing nozzles and promote zinc. The flow of smoke to the smoke collecting hood reduces the diffusion to the environment; the invention has reasonable structural design, good collection effect on zinc smoke, reduces environmental pollution, reduces cost and waste, and has wide popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of hot-dip galvanizing equipment, in particular to an end-blown mobile cover zinc fume collecting device. Background technique [0002] Hot-dip galvanizing is to make the molten metal react with the iron substrate to form an alloy layer, so that the substrate and the coating are combined, and it is widely used to protect the surface of steel and its parts from atmospheric corrosion. Galvanized products have uniform coating, Strong adhesion, long service life and other advantages. At present, the hot-dip galvanizing industry mostly uses the conventional zinc ammonium chloride fluxing solution as the fluxing agent. Due to the high temperature of the hot-dip galvanizing solution tank, when the workpiece is immersed in the zinc liquid, the zinc liquid and the fluxing agent evaporate. A large amount of high-temperature zinc fume will be generated, and the rising speed of zinc fume is fast, and a large amount of ...

AI Technical Summary

Problems solved by technology

At present, the hot-dip galvanizing industry mostly uses the conventional zinc ammonium chloride fluxing solution as the fluxing agent. Due to the high temperature of the hot-dip galvanizing solution tank, when the workpiece is immersed in the zinc liquid, the zinc liquid and the fluxing agent evaporate. A large amount of high-temperature zinc fume will be generated, and the rising speed of zinc fume is fast, and a large amount of zinc oxide dust volatilized on the zinc liquid surface will be taken away. The direct discharge of zinc fume into the atmosphere will cause environmental pollution and increase the cost of galvanizing; the existing zinc fume collection The device is to install a smoke hood on the upper end of the zinc tank, but the suction effect of this upper open smoke collection device is poor. There is an open space between the smoke hood and the zinc tank. If a large suction force is used, it will It leads to accelerated volatilization and accelerated cooling of zinc liquid, resulting in waste of cost. On the other hand, if the suction force is insufficient, it will lead to poor collection effect of zinc fume, and the problem of environmental pollution still exists.

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