Hot galvanizing furnace for hot galvanizing processing

Abstract

The utility model discloses a hot galvanizing furnace for hot galvanizing processing, and relates to the field of galvanizing furnaces, the hot galvanizing furnace comprises a furnace body and a purification box, the top of the furnace body is fixedly connected with an air pipe, the air pipe is provided with an air pump and a filter box, a filter screen is inserted in the filter box, and the top of the purification box is fixedly provided with a double-shaft motor; a double-shaft motor is arranged in the filter box, rotating rods are fixedly arranged on output shafts at two ends of the double-shaft motor, one rotating rod movably extends into the filter box, a cam is fixedly arranged at the end part of the rotating rod movably extending into the filter box, and the cam is movably contacted with the filter screen. A water pump sucks purification liquid in the purification box through a water purification pipe, the purification liquid is sprayed to the position close to the inner wall of the top of the purification box through a water outlet pipe and a spray head to purify floating waste gas, the purification effect is improved, and the situation that the waste gas floats out to pollute air can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of galvanizing furnaces, in particular to a hot-dip galvanizing furnace for hot-dip galvanizing processing. Background Art

[0002] Hot-dip galvanizing is to make molten metal react with iron matrix to produce alloy layer, so that the matrix and coating are combined. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. A galvanizing furnace is needed in the hot-dip galvanizing process. During the hot-dip galvanizing process, waste gases such as sulfur dioxide and nitrogen oxides will appear. If they are directly discharged without treatment, it will affect the air quality. When treating these waste gases, the existing technology generally uses air pumps to adsorb and discharge them into a purification liquid containing sodium hypochlorite and other substances to produce chemical reactions to achieve the purpose of purifying the waste gases. When purifying these waste gases, the following problems will occur: 1. When absorbing these waste gases, some solid particles will be mixed in the waste gases, which will easily block the air pump and affect the efficiency of adsorbing waste gases; 2. When these waste gases enter the purification liquid, due to the fast flow rate, before the chemical reaction is completely carried out, a part of them will leave the purification liquid and float into the air to pollute the air. Therefore, it is necessary to propose a hot-dip galvanizing furnace for hot-dip galvanizing to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a hot-dip galvanizing furnace for hot-dip galvanizing processing, so as to solve the problem that some solid particles are mixed in the exhaust gas, which is easy to block the air pump and affect the efficiency of adsorbing the exhaust gas. In addition, due to the fast gas flow rate, a part of the gas will be separated from the purification liquid and float into the air before the chemical reaction is completely carried out, which will still pollute the air.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot-dip galvanizing furnace for hot-dip galvanizing processing, comprising a furnace body and a purification box, the top of the furnace body is fixedly connected with an air pipe, an air pump and a filter box are arranged on the air pipe, the filter box is arranged between the air pump and the furnace body, a filter net is inserted in the filter box, and the other end of the air pipe is fixedly connected to the purification box;

[0005] A double-axis motor is fixedly installed on the top of the purification box, and rotating rods are fixedly installed on the output shafts at both ends of the double-axis motor. One of the rotating rods movably extends into the filter box, and a cam is fixedly installed on the end of the rotating rod that movably extends into the filter box, and the cam is movably in contact with the filter screen.

[0006] Preferably, a water pump is provided on the top of the purification box, and a water inlet pipe and a water outlet pipe are fixedly installed at both ends of the water pump, one end of the water inlet pipe is inserted in the purification box near the bottom inner wall, and a nozzle is rotatably installed at one end of the water outlet pipe, and the nozzle is located inside the purification box.

[0007] Preferably, a gear is provided on the nozzle, and a first bevel gear is fixedly installed on the other end of another rotating rod, and a second bevel gear is meshed on the first bevel gear. A connecting rod is rotatably installed on the purification box, one end of the connecting rod is fixedly connected to the second bevel gear, and a missing gear is fixedly installed on the other end of the connecting rod. The missing gear is semicircular and meshes with the gear.

[0008] Preferably, a mounting seat is provided in the purification box, a torque spring is installed in the mounting seat, and one end of the torque spring is fixedly connected to the nozzle.

[0009] Preferably, the purification box is provided with an exhaust pipe, and the exhaust pipe is provided with a solenoid valve.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The filter in the filter box can filter out particulate matter in the exhaust gas, preventing the particulate matter from clogging the air pump, reducing the efficiency of absorbing exhaust gas, and even causing damage to the air pump;

[0012] 2. The rotation of the cam will knock on the filter, causing the filter to vibrate and shake off the adsorbed particles to prevent the filter from being blocked, so that the air pump can continue to adsorb the exhaust gas and then discharge the exhaust gas into the purification box for purification;

[0013] 3. When the waste gas enters the purification liquid for purification, some of the waste gas will float to a position close to the top inner wall of the purification box or be discharged directly. At this time, start the water pump, absorb the purification liquid in the purification box through the water inlet pipe, and spray it to a position close to the top inner wall of the purification box through the water outlet pipe and nozzle to purify the floating waste gas.

[0014] 4. When the missing gear and the gear are meshed, the gear will rotate with the missing gear, causing the nozzle to rotate. When the missing gear and the gear are separated, the torque spring is reset, causing the nozzle to rotate in the opposite direction. This can expand the spraying area of ​​the nozzle, increase the contact area between the purification liquid and the exhaust gas, and thus improve the purification effect and prevent the exhaust gas from floating out and polluting the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the hot-dip galvanizing furnace structure for hot-dip galvanizing processing.

[0016] Figure 2 It is a cross-sectional view of a hot-dip galvanizing furnace for hot-dip galvanizing processing according to the utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the filter box of the utility model.

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. furnace body; 2. purification box; 3. air pump; 4. filter box; 5. air pipe; 6. filter screen; 7. double-axis motor; 8. rotating rod; 9. cam; 10. first bevel gear; 11. second bevel gear; 12. connecting rod; 13. missing gear; 14. water pump; 15. water inlet pipe; 16. water outlet pipe; 17. nozzle; 18. gear; 19. torque spring; 20. exhaust pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-Figure 4 A hot-dip galvanizing furnace for hot-dip galvanizing processing shown in the figure includes a furnace body 1 and a purification box 2. An air pipe 5 is fixedly connected to the top of the furnace body 1, and an air pump 3 is arranged on the air pipe 5. The air pump 3 for adsorbing exhaust gas adopts a conventional air pump 3 on the market. When the galvanizing work is carried out, the substrate to be galvanized is placed in the furnace body 1 for galvanizing, which is the same as the galvanizing procedure on the market and will not be repeated here.

[0022] During the galvanizing process, waste gas is generated in the furnace body 1, and this part of waste gas is introduced into the air pipe 5 for discharge. In order to solve the problem that some solid particles are mixed in the waste gas when absorbing the waste gas, which is easy to block the air pump 3 and affect the efficiency of adsorbing waste gas, the utility model is provided with a filter box 4 on the air pipe 5, and the filter box 4 is arranged between the air pump 3 and the furnace body 1, and a filter screen 6 is inserted in the filter box 4. The other end of the air pipe 5 is fixedly connected to the purification box 2. The filter screen 6 in the filter box 4 can filter the particles in the waste gas to prevent the particles from clogging the air pump 3, reducing the efficiency of adsorbing waste gas, and even causing damage to the air pump 3. When the galvanizing is completed, the filter screen 6 can be pulled out to clean up the particles filtered in the filter box 4;

[0023] Furthermore, in order to prevent the filter 6 from being blocked, a dual-axis motor 7 is fixedly installed on the top of the purification box 2, and rotating rods 8 are fixedly installed on the output shafts at both ends of the dual-axis motor 7. A cam 9 is fixedly installed on the end of one of the rotating rods 8. The cam 9 is in active contact with the filter 6. The rotation of the dual-axis motor 7 can drive the rotating rod 8 to rotate, and then drive the cam 9 to rotate. The rotation of the cam 9 will knock on the filter 6, causing the filter 6 to vibrate and shake off the adsorbed particulate matter, thereby preventing the filter 6 from being blocked, allowing the air pump 3 to continuously adsorb the exhaust gas, and then discharge the exhaust gas into the purification box 2 for purification.

[0024] In order to solve the problem that when the waste gas enters the purification liquid, due to the fast flow rate, before the chemical reaction is completely carried out, a part of it will separate from the purification liquid and float into the air to pollute the air, so the utility model is provided with a water pump 14 on the top of the purification box 2, and the two ends of the water pump 14 are respectively fixedly installed with a water inlet pipe 15 and a water outlet pipe 16, one end of the water inlet pipe 15 is inserted in the purification box 2 near the bottom inner wall, and one end of the water outlet pipe 16 is rotatably installed with a nozzle 17. When the waste gas enters the purification liquid for purification, a part of it will float into the air. Since the purification box 2 is closed, this part of the waste gas will float to the vicinity of The position of the top inner wall of the purification box 2 or direct discharge will cause the phenomenon of poor purification effect. The utility model is provided with a water pump 14. By starting the water pump 14, the purified liquid in the purification box 2 can be drawn out from the water inlet pipe 15 and discharged from the water outlet pipe 16 and the nozzle 17 in sequence. The nozzle 17 is provided with an atomization structure inside, so that the purified liquid is atomized, increasing the contact area between the purified liquid and the exhaust gas, thereby improving the effect of exhaust gas purification. The atomization structure inside the nozzle 17 is a common prior art and will not be described in detail here, which avoids the phenomenon that the exhaust gas gathers on the top of the purification box 2 or is directly discharged, resulting in poor purification effect.

[0025] Furthermore, a gear 18 is provided on the nozzle 17, the gear 18 is coaxial with the nozzle 17, and the gear 18 is arranged around the outer ring of the nozzle 17. A first bevel gear 10 is fixedly installed at one end of another rotating rod 8, and a second bevel gear 11 is meshed on the first bevel gear 10. A connecting rod 12 is rotatably installed on the purification box 2, and one end of the connecting rod 12 is fixedly connected to the second bevel gear 11, and the other end of the connecting rod 12 is fixedly installed with a missing gear 13, and the missing gear 13 is meshed with the gear 18. A mounting seat is provided in the purification box 2, and a torque spring 19 is installed in the mounting seat. One end of the torque spring 19 is fixedly connected to the nozzle 17, and the double When the shaft motor 7 rotates, it drives the rotating rod 8 to rotate, and then drives the first bevel gear 10 and the second bevel gear 11 to rotate. The second bevel gear 11 drives the connecting rod 12 to rotate, and the connecting rod 12 drives the missing gear 13 to rotate. When the missing gear 13 and the gear 18 are engaged, the gear 18 will rotate with the missing gear 13, so that the nozzle 17 rotates. When the missing gear 13 and the gear 18 are separated, the torque spring 19 is reset, so that the nozzle 17 rotates in the opposite direction. In this way, the spraying area of ​​the nozzle 17 can be expanded, and the nozzle 17 can rotate back and forth, thereby increasing the contact surface between the purified liquid and the exhaust gas, thereby improving the purification effect and preventing the exhaust gas from floating out and polluting the air.

[0026] It should be noted that the missing gear 13 has a semicircular structure, or may be a one-third circle structure, etc. It can be adjusted according to actual needs and is not limited here.

[0027] An exhaust pipe 20 is provided on the purification box 2, and a solenoid valve is provided in the exhaust pipe 20. After the exhaust gas in the purification box 2 is treated, the solenoid valve can be opened to discharge the treated exhaust gas from the exhaust pipe 20 or to a designated location for further treatment.

Claims

1. A hot dip galvanizing furnace for hot dip galvanizing, comprising a furnace body (1) and a purification box (2), characterized in that: The top of the furnace body (1) is fixedly connected to an air pipe (5), an air pump (3) and a filter box (4) are arranged on the air pipe (5), the filter box (4) is arranged between the air pump (3) and the furnace body (1), a filter screen (6) is inserted into the filter box (4), and the other end of the air pipe (5) is fixedly connected to the purification box (2); A double-shaft motor (7) is fixedly mounted on the top of the purification box (2), and rotating rods (8) are fixedly mounted on the output shafts at both ends of the double-shaft motor (7), one of the rotating rods (8) movably extends into the interior of the filter box (4), and a cam (9) is fixedly mounted on the end of the rotating rod (8) movably extending into the interior of the filter box (4), and the cam (9) is in movably contact with the filter screen (6).

2. A hot dip galvanizing furnace for hot dip galvanizing according to claim 1, characterized in that: A water pump (14) is arranged on the top of the purification box (2), and a water inlet pipe (15) and a water outlet pipe (16) are respectively fixedly installed at both ends of the water pump (14), one end of the water inlet pipe (15) is inserted into the purification box (2) at a position close to the bottom inner wall, and a nozzle (17) is rotatably installed at one end of the water outlet pipe (16), and the nozzle (17) is located inside the purification box (2).

3. A hot dip galvanizing furnace for hot dip galvanizing according to claim 2, characterized in that: The nozzle (17) is provided with a gear (18); the other end of the other rotating rod (8) is fixedly mounted with a first bevel gear (10); the first bevel gear (10) is meshed with a second bevel gear (11); a connecting rod (12) is rotatably mounted on the purification box (2); one end of the connecting rod (12) is fixedly connected to the second bevel gear (11); the other end of the connecting rod (12) is fixedly mounted with a missing gear (13); the missing gear (13) is semicircular and meshes with the gear (18).

4. A hot dip galvanizing furnace for hot dip galvanizing according to claim 2, characterized in that: A mounting seat is provided in the purification box (2), a torque spring (19) is installed in the mounting seat, and one end of the torque spring (19) is fixedly connected to the nozzle (17).

5. The hot-dip galvanizing furnace for hot-dip galvanizing according to claim 1, characterized in that: The purification box (2) is provided with an exhaust pipe (20), and an electromagnetic valve is provided in the exhaust pipe (20).

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