Method for recovering zinc from dross generated in galvanizing bath and apparatus therefor

摘要

The present invention relates to a method for recovering zinc from a dross generated in a galvanizing bath and a device therefor, in particular, a pusher (69) forward and backward driven by an air cylinder (66) injects a floating dross of a galvanizing bath (2). A drop-in collecting step (10) into the stirrer (7); After injecting the flux of the flux box 18 to the dross in the stirrer 7 collected in the drop spore collection step, the dross and the flux in the stirrer 7 are chemically controlled by using the vertical stirring motion of the impeller 8. A reaction to change to pure zinc and ash, and the gas generated in the chemical reaction is sucked into the outlet 11 and then released into the atmosphere through the discharge pipe 72 in a state cooled by the cooling water. Steps; The draw generated in the galvanizing bath, characterized in that consisting of a re-removal step of removing the suspended ash (Ash) of the stirrer (7) generated in the chemical reaction step with a bucket 61 and discarding in the box (65). It is about zinc recovery from gas.;In addition, the stirrer 7 is locked to the upper end of the injection hole 10 by the fixing plate 6 in the zinc plating tank 2 of the hot dip plating equipment, and the body 27 is fixed vertically to the upper surface of the fixing plate 6. The movable plate 13 is horizontally coupled to the left and right by the air cylinder 30, the wire rope 32, the rotary rolls 33, 26 so that the moving cylinder 13 is installed on the moving plate 13 The impeller 8 moves up and down inside the stirrer 7 by means of a flux injection hole 13-2 through which the flux of the box 18 fixed to the upper surface of the moving plate 13 is opened and closed. A chemical reaction unit (4) disposed in the stirrer (7) and installed to be discharged through the discharge pipe (72) in a cooled state while the chemical gas of the stirrer (7) is sucked through the outlet (11); The pusher 69 of the air cylinder 66 fixed to the inclined plate 70-2 passes the floating dross of the galvanizing bath 2 into the stirrer 7 through the inlet 10 of the stirrer 7. A drop plate collecting portion (71) having a fixing plate (70-1) fixed to one side of an upper surface of the stirrer (7) to collect; The driven gear 35 which is tooth-coupled with the drive gear 38 driven by the motor 36 is rotatably supported on one side of the upper surface of the stirrer 7 and vertically fixed to the upper surface of the driven gear 35. The movable plate 52 is horizontally coupled to one side of the body 95 by the air cylinder 39, the rotary roll 43, the wire rope 42, and is lowered at one end of the movable plate 52. The bucket 61 supported by the fixed steel 57 and the moving steel 60 is seesawed by the air cylinder 48 and the wire rope 56, and the air cylinder 62 fixed by the clamp 63. Impact recovering 64 attached to the upper end of the bucket 61 is a re-removing unit 14 is moved forward and backward to hit the rear portion of the zinc recovery tank from the dross generated in the galvanizing tank will be.