Oxidation iron removal device for hot galvanizing assistant liquid

Abstract

The utility model discloses a hot galvanizing assistant liquid oxidation deironing device, which comprises a reaction tank and a U-shaped liquid measuring cylinder, a movable frame is clamped on the reaction tank in a sliding manner, a hollow stirring shaft is rotatably connected on the movable frame, and an output pipe and a liquid inlet pipe are mounted at one end of the U-shaped liquid measuring cylinder. Liquid such as an oxidizing agent added into the U-shaped liquid measuring cylinder can be directly measured through the U-shaped liquid measuring cylinder, and then the oxidizing agent in the U-shaped liquid measuring cylinder is slowly pressed into the hollow stirring shaft through the pressure mechanism, so that the burden of a worker is relieved, and the oxidizing agent does not need to be held by hands and is slowly added; after an oxidizing agent is pressed into the hollow stirring shaft through the pressure mechanism, the oxidizing agent is slowly discharged through the liquid discharging holes in the hollow stirring shaft, liquid is slowly discharged while stirring is conducted, and therefore the effect of stirring, mixing, oxidizing and deironing of the oxidizing agent and plating assisting liquid is better; the hollow stirring shaft is driven by the moving mechanism to move on the reaction tank, so that the hollow stirring shaft can be suitable for a larger reaction tank, and the iron removal effect of each part in the reaction tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removal devices for oxidized hot-dip galvanizing flux, in particular to an iron removal device for oxidized hot-dip galvanizing flux. Background Art

[0002] Common galvanizing processes in industry include hot-dip galvanizing, electro-galvanizing, mechanical galvanizing, and thermal spraying (coating) galvanizing, etc. Among them, hot-dip galvanizing accounts for about 95% of the total galvanizing volume. The zinc consumption for hot-dip galvanizing accounts for 40% of the world's zinc production and about 30% of China's zinc production. After pickling the workpieces, some acid solution will be brought into the solvent. There are iron ions in the acid solution. At the same time, iron ions will also be generated when iron workpieces are immersed in the solvent. The iron ions brought into the zinc pot will combine with the zinc solution to form zinc dross, resulting in cost waste.

[0003] In the prior art, when removing iron, a reaction tank, an oxidant tank, and an ammonia water tank are often added outside the solvent tank. The solvent is regularly pumped into the reaction tank and the oxidant and ammonia water are quantitatively added. After the reaction is completed by stirring with a stirring device, pressure filtration is automatically carried out, and the treated solvent is pumped back into the solvent tank to form an on-line treatment.

[0004] The existing iron removal process by oxidation has the following problems: 1. After introducing the galvanizing flux into the reaction tank, it is necessary to manually measure and then slowly and evenly add it into the reaction tank, which is rather troublesome; 2. Since the oxidant, ammonia water, etc. are all sprinkled on the surface of the galvanizing flux, the stirring and mixing effect is poor; 3. Most of the existing stirring devices are fixed. When encountering a larger reaction tank, the stirring and mixing effect is even worse. Summary of the Utility Model

[0005] Based on this, it is necessary to provide an iron removal device for oxidized hot-dip galvanizing flux in view of the above technical problems.

[0006] In order to achieve the above object, the utility model provides an iron removal device for oxidized hot-dip galvanizing flux, which includes a reaction tank and a U-shaped liquid measuring cylinder. A moving frame is slidably clamped on the reaction tank. A hollow stirring shaft is rotatably connected to the moving frame. One end of the U-shaped liquid measuring cylinder is provided with an output pipe and a liquid inlet pipe. The output pipe is communicated with the hollow stirring shaft through a rotary joint. A valve is installed on the liquid inlet pipe. One end of the U-shaped liquid measuring cylinder away from the output pipe is slidably and sealingly connected with a pressing block. An air vent groove is arranged at the top of the end of the U-shaped liquid measuring cylinder away from the output pipe. When the pressing block is at the topmost position in the U-shaped liquid measuring cylinder, the air vent groove is located below the pressing block. A pressure mechanism for driving the pressing block to press down is installed on the moving frame. A driving mechanism for driving the hollow stirring shaft to rotate is installed on the moving frame. A plurality of hollow stirring rods are installed on the hollow stirring shaft. The hollow stirring rods are communicated with the hollow stirring shaft. A plurality of liquid discharge holes are arranged on the hollow stirring rods. A moving mechanism for driving the moving frame to move is installed on the reaction tank.

[0007] Preferably, the pressure mechanism comprises a linear drive device and a U-shaped rod, the output end of the linear drive device is connected to one end of the U-shaped rod, and the other end of the U-shaped rod is connected to the pressure block.

[0008] Preferably, the driving mechanism comprises a rotary driving device 1, a driving gear is installed at the output end of the rotary driving device 1, a driven gear is installed on the hollow stirring shaft, and the driving gear is meshingly connected with the driven gear.

[0009] Preferably, the moving mechanism comprises a second rotary drive device, a threaded rod is rotatably connected to the reaction tank, an output end of the second rotary drive device is transmission-connected to the threaded rod, and the moving frame is threadedly connected to the threaded rod.

[0010] Preferably, a funnel is further included, and the funnel is installed on the liquid inlet pipe.

[0011] Preferably, a slide bar is installed on the reaction tank, and the movable frame is slidably connected to the slide bar.

[0012] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0013] The U-shaped measuring cylinder can directly measure the oxidant and other liquids added therein, and the pressure mechanism slowly presses the oxidant in the U-shaped measuring cylinder into the hollow stirring shaft, thereby reducing the burden on the staff, and there is no need to hold and slowly add the oxidant;

[0014] After the oxidant is pressed into the hollow stirring shaft by a pressure mechanism, it is slowly discharged from a number of drainage holes on the hollow stirring shaft. The liquid is slowly discharged while stirring, so that the oxidant and the plating solution are stirred and mixed to oxidize and remove iron better.

[0015] The hollow stirring shaft is driven to move on the reaction tank by the moving mechanism, so that the hollow stirring shaft can be applied to a larger reaction tank, thereby improving the iron removal effect at various locations in the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional view of an embodiment of the utility model;

[0017] Figure 2 A three-dimensional diagram of an embodiment of the utility model;

[0018] In the figure, 1, reaction tank; 2, U-shaped measuring cylinder; 3, moving frame; 4, hollow stirring shaft; 5, output pipe; 6, liquid inlet pipe; 7, valve; 8, pressure block; 9, ventilation groove; 10, hollow stirring rod; 11, drainage hole; 12, linear drive device; 13, U-shaped rod; 14, rotary drive device 1; 15, driving gear; 16, driven gear; 17, rotary drive device 2; 18, threaded rod; 19, funnel; 20, slide rod. DETAILED DESCRIPTION

[0019] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0020] Please refer to Figures 1 to 2 , an iron removal device for oxidizing a hot-dip galvanizing fluxing solution according to an embodiment of the present application includes a reaction tank 1 and a U-shaped liquid measuring cylinder 2. The U-shaped liquid measuring cylinder 2 can be made of transparent, corrosion-resistant, and hard materials such as plexiglass, polycarbonate, and tempered glass. A moving frame 3 is slidably clamped on the reaction tank 1, and a hollow stirring shaft 4 is rotatably connected to the moving frame 3. One end of the U-shaped liquid measuring cylinder 2 is provided with an output pipe 5 and a liquid inlet pipe 6. The output pipe 5 is communicated with the hollow stirring shaft 4 through a rotary joint. A valve 7 is installed on the liquid inlet pipe 6, and the valve 7 can be an electromagnetic valve. One end of the U-shaped liquid measuring cylinder 2 away from the output pipe 5 is slidably and sealingly connected with a pressing block 8, and a ventilation groove 9 is provided at the top of the end of the U-shaped liquid measuring cylinder 2 away from the output pipe 5; when the pressing block 8 is at the topmost position inside the U-shaped liquid measuring cylinder 2, the ventilation groove 9 is located below the pressing block 8. After the pressing block 8 passes through the ventilation groove 9, it is still slidably and sealingly connected with the U-shaped liquid measuring cylinder 2; a pressure mechanism for driving the pressing block 8 to press down is installed on the moving frame 3, a driving mechanism for driving the hollow stirring shaft 4 to rotate is installed on the moving frame 3, a plurality of hollow stirring rods 10 are installed on the hollow stirring shaft 4, the hollow stirring rods 10 are communicated with the hollow stirring shaft 4, a plurality of liquid discharge holes 11 are provided on the hollow stirring rods 10, and a moving mechanism for driving the moving frame 3 to move is installed on the reaction tank 1. The oxidant can be selected as hydrogen peroxide.

[0021] In this embodiment, both the oxidant and the ammonia solution can be added into the U-shaped measuring liquid cylinder 2 through the liquid inlet pipe 6. When adding, the pressing block 8 should be located at the top of the U-shaped measuring liquid cylinder 2, so that the venting groove 9 can discharge the air squeezed out by the liquid, so that the liquid levels at both ends of the U-shaped measuring liquid tube 2 are flush according to the communicating vessel principle, which is convenient for reading. When a certain amount of oxidant or ammonia solution is added, the pressure mechanism drives the pressing block 8 to slide downward in the U-shaped measuring liquid tube 2, so that the liquid is pressed into the hollow stirring shaft 4 through the output pipe 5, and then slowly discharged through the plurality of discharge holes 11 on the hollow stirring rod 10. When discharging, the driving mechanism drives the hollow stirring rod 10 to discharge the liquid. The mixing shaft 4 rotates so that the liquid can be uniformly mixed into the plating liquid; when the oxidant or ammonia is more, and one-time pressing is not enough to inject all the liquid into the plating liquid, the pressing block 8 can be pressed down for the first time and then moved up. When moving up, the valve 7 should be in an open state so that air can enter, and avoid absorbing the plating liquid into the hollow stirring shaft 4. When the pressing block 8 is reset to the highest point again, the valve 7 is closed for secondary pressing and injection; while injecting and stirring, the mobile mechanism drives the mobile frame 3 to move horizontally on the reaction tank 1, so that the plating liquid in each place in the larger reaction tank 1 can be uniformly mixed with the oxidant or ammonia to precipitate the iron ions. After the injection is completed, the valve 7 can be kept closed, and the pressing block 8 is repeatedly moved in the U-shaped measuring cylinder 2 under the drive of the pressure mechanism, so that the plating liquid can be drawn into the oxidant or ammonia residue in the hollow stirring shaft 4 for washing. When the liquid level of the plating solution in the reaction tank 1 is low, the liquid discharged by the hollow stirring rod 10 at a higher position on the hollow stirring shaft 4 is equivalent to the traditional method of evenly sprinkling the oxidant or ammonia water on the surface of the plating solution, which will not have a bad influence on the oxidation and iron removal process and generally will not occur, while the hollow stirring rod 10 at the bottom can still mix the oxidant or ammonia water evenly.

[0022] In some embodiments, in order to push the pressure block 8 downward, a pressure mechanism is provided including a linear drive device 12 and a U-shaped rod 13. The U-shaped rod 13 is made of metal or other hard materials. The linear drive device 12 can be a multi-stage electric cylinder. The output end of the linear drive device 12 is connected to one end of the U-shaped rod 13, and the other end of the U-shaped rod 13 is connected to the pressure block 8.

[0023] In some embodiments, in order to facilitate driving the hollow stirring shaft 4, a driving mechanism is provided including a rotating driving device 14, which can be a motor. A driving gear 15 is installed at the output end of the rotating driving device 14, and a driven gear 16 is installed on the hollow stirring shaft 4. The driving gear 15 is meshed and connected with the driven gear 16.

[0024] In some embodiments, to facilitate the movement of the moving frame 3 on the reaction tank 1, a moving mechanism is provided, which includes a second rotary driving device 17. The second rotary driving device 17 can be a servo motor. A threaded rod 18 is rotatably connected to the reaction tank 1. The output end of the second rotary driving device 17 is in transmission connection with the threaded rod 18, and the moving frame 3 is threadedly connected to the threaded rod 18. By driving the threaded rod 18 to rotate forward and backward by the second rotary driving device 17, the moving frame 3 can be driven to move horizontally on the reaction tank 1.

[0025] In some embodiments, to facilitate the addition of an oxidant or ammonia water into the liquid inlet pipe 6, a funnel 19 is further provided, and the funnel 19 is installed on the liquid inlet pipe 6.

[0026] In some embodiments, to achieve the sliding connection of the moving frame 3 on the reaction tank 1, a sliding rod 20 is installed on the reaction tank 1, and the moving frame 3 is slidably connected to the sliding rod 20.

[0027] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0028] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A device for removing iron from hot-dip galvanizing flux by oxidation, comprising a reaction tank (1) and a U-shaped measuring cylinder (2), characterized in that: The reaction tank (1) is slidably connected to a movable frame (3), and a hollow stirring shaft (4) is rotatably connected to the movable frame (3). An output pipe (5) and a liquid inlet pipe (6) are installed at one end of the U-shaped measuring cylinder (2), and the output pipe (5) is connected to the hollow stirring shaft (4) through a rotating joint. A valve (7) is installed on the liquid inlet pipe (6). A pressure block (8) is slidably and sealingly connected to one end of the U-shaped measuring cylinder (2) away from the output pipe (5). A ventilation groove (9) is provided at the top of the end of the U-shaped measuring cylinder (2) away from the output pipe (5); the pressure block (8) is located at the top of the U-shaped measuring cylinder (2) When the measuring cylinder (2) is at the top, the ventilation groove (9) is located below the pressing block (8); a pressure mechanism for driving the pressing block (8) to press downward is installed on the movable frame (3); a driving mechanism for driving the hollow stirring shaft (4) to rotate is installed on the movable frame (3); a plurality of hollow stirring rods (10) are installed on the hollow stirring shaft (4); the hollow stirring rods (10) are connected to the hollow stirring shaft (4); a plurality of drainage holes (11) are provided on the hollow stirring rods (10); and a moving mechanism for driving the movable frame (3) to move is installed on the reaction tank (1).

2. The hot-dip galvanizing flux oxidation iron removal device according to claim 1, characterized in that: The pressure mechanism comprises a linear drive device (12) and a U-shaped rod (13), wherein the output end of the linear drive device (12) is connected to one end of the U-shaped rod (13), and the other end of the U-shaped rod (13) is connected to the pressure block (8).

3. The hot-dip galvanizing flux oxidation iron removal device according to claim 2, characterized in that: The driving mechanism comprises a rotary driving device (14), the output end of which is provided with a driving gear (15), the hollow stirring shaft (4) is provided with a driven gear (16), and the driving gear (15) is meshingly connected with the driven gear (16).

4. The hot-dip galvanizing flux oxidation iron removal device according to claim 1, characterized in that: The moving mechanism comprises a second rotary drive device (17), a threaded rod (18) is rotatably connected to the reaction tank (1), an output end of the second rotary drive device (17) is transmission-connected to the threaded rod (18), and the moving frame (3) is threadedly connected to the threaded rod (18).

5. The hot-dip galvanizing flux oxidation iron removal device according to claim 1, characterized in that: It also includes a funnel (19), which is mounted on the liquid inlet pipe (6).

6. The hot-dip galvanizing flux oxidation iron removal device according to claim 1, characterized in that: A sliding rod (20) is installed on the reaction tank (1), and the movable frame (3) is slidably connected to the sliding rod (20).

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