Magnesium alloy die-casting filling pipe overhauling platform

Abstract

This utility model relates to a maintenance platform for magnesium alloy die-casting filling pipes, including a maintenance platform (1), a waste gas treatment device (2), a magnesium slag treatment device (3), and a magnesium liquid neutralization device (4). A liquid outlet (11) is provided on the maintenance platform. A support rod (21) is provided on the maintenance platform. A gas collection hood (22) is provided on the upper end of the support rod and covers the maintenance platform. A gas collection port (221) is provided on the gas collection hood. An induced draft fan (23) is connected to the gas collection port through an induced draft pipe (25) and to a waste gas adsorber (24) through an exhaust pipe (26). A feed inlet (311) is provided on the upper part of a collection box (31), and a box door (312) is provided on the side wall. A collection box is provided inside the collection box. A neutralization box (41) is fixedly provided below the maintenance platform and is connected to the liquid outlet through a connecting pipe (42). Neutralization liquid is provided inside the neutralization box. This utility model can treat magnesium vapor, magnesium slag, and magnesium liquid generated during maintenance.

Description

Technical Field

[0001] This utility model relates to a maintenance platform for magnesium alloy die-casting filling pipes, and more particularly to the structure of such a platform. Background Technology

[0002] In the magnesium alloy die-casting process, molten magnesium alloy in the furnace is transported to the die-casting machine via a pouring pump and a filling pipe with external insulation for die casting. Molten magnesium alloy must be in a sealed state under the protection of the protective gas SF6 before die casting can proceed.

[0003] When molten magnesium alloy comes into prolonged contact with the protective gas SF6 at high temperatures, it reacts to produce MgF2 and MgO complexes, oxides from the oxidation of the magnesium alloy, and impurities such as slag within the furnace. Because these impurities have a similar density to the molten magnesium alloy, they become suspended in the molten magnesium, causing it to become viscous. These impurities then enter the filling pipe along with the molten magnesium alloy and easily adhere to the inner wall of the pipe, leading to poor flow and blockages after a period of continuous use.

[0004] Therefore, after a period of use, the filling pipe needs to be inspected for its sealing and insulation properties to maintain these effects. Residue on the inner wall of the filling pipe should also be cleaned to prevent blockage. During the inspection, magnesium slag dust, exhaust gas, and residual magnesium liquid will be generated. Magnesium slag, diffused into the air as dust, can easily ignite or explode, causing accidents. Residual magnesium vapor or acidic gases (such as hydrogen produced by the reaction of magnesium with water) in the inspection area are corrosive, endangering equipment and personnel safety and polluting the environment. If residual magnesium liquid inside the filling pipe is not thoroughly cleaned, it may cause spontaneous combustion or corrode the equipment being inspected, harming maintenance personnel.

[0005] The purpose of this invention is to solve the problem that when manually inspecting the filling pipe using existing methods, magnesium slag dust and residual magnesium liquid are difficult to clean, which also pollutes the environment and corrodes the equipment. Summary of the Invention

[0006] To address the aforementioned issues, this utility model provides a maintenance platform for magnesium alloy die-casting filling pipes, comprising a maintenance platform 1, a waste gas treatment device 2, a magnesium slag treatment device 3, and a magnesium liquid neutralization device 4. The maintenance platform 1 is equipped with a liquid outlet 11. The waste gas treatment device 2 includes a support rod 21, a gas collection hood 22, an induced draft fan 23, and a waste gas adsorber 24. The lower end of the support rod 21 is fixedly mounted on the maintenance platform 1. The gas collection hood 22 is a conical shell with its opening facing downwards. The gas collection hood 22 is fixedly connected to the upper end of the support rod 21 and covers the maintenance platform 1. A gas collection port 221 is located at the top of the gas collection hood 22. The induced draft fan 23 is located on one side of the maintenance platform 1. The inlet of the induced draft fan 23 is connected to the gas collection port 221 via an induced draft pipe 25, and the outlet of the induced draft fan 23 is connected to the waste gas adsorber 24 via an outlet pipe 26.

[0007] The magnesium slag treatment device 3 includes a collection box 31 and a collection container 32. The collection box 31 is fixedly installed on one side of the maintenance platform 1. The upper part of the collection box 31 is provided with a feed inlet 311, and the inside is provided with a cavity to accommodate the collection container 32. A box door 312 is provided on the side wall. The collection container 32 is installed inside the collection box 31 and has an opening at the top. The magnesium liquid neutralization device 4 includes a neutralization box 41, which is installed below the maintenance platform 1. The neutralization box 41 is connected to the liquid outlet 11 through a connecting pipe 42 and contains neutralizing liquid.

[0008] This invention solves the problems of magnesium vapor and magnesium slag dust generated during the maintenance of the filling pipe by setting up a waste gas treatment device 2 and placing a gas collection hood 22 above the maintenance platform 1. When the exhaust fan 23 is turned on, the magnesium vapor and magnesium slag dust generated during the maintenance of the filling pipe are drawn into the exhaust pipe 25 through the gas collection hood 22, and then discharged into the waste gas adsorber 24 for adsorption treatment, preventing magnesium vapor and other waste gases from harming equipment and personnel safety and polluting the environment. A magnesium slag treatment device 3 is set up on one side of the maintenance platform 1 to collect the magnesium slag generated during the maintenance of the filling pipe into a collection box 31 for unified treatment. A magnesium liquid neutralization device 4 is used, with a neutralization box 41 set below the maintenance platform 1 and connected to the liquid outlet 11 via a connecting pipe 42. The box contains neutralizing liquid, allowing residual magnesium liquid in the filling pipe to flow into the neutralization box 41 for neutralization treatment, preventing spontaneous combustion of magnesium liquid or corrosion of maintenance equipment and injury to maintenance personnel. This invention solves the problems of magnesium slag dust, waste gas, and residual magnesium liquid polluting the environment, corroding equipment, and injuring maintenance personnel during the maintenance of existing filling pipes.

[0009] Preferably, the magnesium liquid neutralization device 4 further includes a stirring mechanism 43, which includes a stirring motor 431 and a stirring rod 432. The stirring motor 431 is fixedly installed on the top of the neutralization tank 41, and the stirring rod 432 is vertically installed. Its upper end is fixedly connected to the output shaft of the stirring motor 431, and its lower end extends through the top surface of the neutralization tank 41 into the interior of the neutralization tank 41. The lower end is provided with stirring blades 433.

[0010] By setting up a stirring mechanism 43, the stirring motor 431 rotates and drives the stirring rod 432 to rotate. The stirring blades 433 at the lower end of the stirring rod 432 can stir the magnesium liquid in the neutralization tank 41, so that the magnesium liquid can fully react with the neutralizing liquid and fully process the magnesium liquid.

[0011] Preferably, the magnesium solution neutralization device 4 further includes a liquid addition tank 44 and a pH sensor 45. The liquid addition tank 44 is located at the top of the neutralization tank 41, and the bottom of the liquid addition tank 44 is connected to the neutralization tank 41 through a liquid addition pipe 47. A liquid addition valve 471 is provided on the liquid addition pipe 47. The pH sensor 45 is located inside the neutralization tank 41.

[0012] By setting up a liquid addition tank 44, which is connected to a neutralization tank 41 via a liquid addition pipe 47, a liquid addition valve 471 is installed on the liquid addition pipe 47, and a pH sensor 45 is installed inside the neutralization tank 41. The pH value of the liquid inside the neutralization tank 41 is measured by the pH sensor 45, and the liquid addition valve 471 is opened according to the pH value of the liquid inside the neutralization tank 41 to add neutralizing liquid, such as dilute hydrochloric acid or citric acid solution, into the neutralization tank 41 to neutralize the magnesium solution. After treatment, the solution is discharged into the wastewater treatment system.

[0013] Preferably, a baffle 12 is provided on the outer periphery of the top surface of the maintenance platform 1. A slag discharge port 13 is formed on the baffle 12 above the collection box 31. A slag guide cylinder 33 is provided at the slag discharge port 13. The upper end of the slag guide cylinder 33 is connected to the slag discharge port 13, and the lower end extends into the feed port 311 of the collection box 31.

[0014] By setting a baffle 12 on the outer periphery of the top surface of the maintenance platform 1, the magnesium slag can be prevented from falling and can be allowed to enter the collection box 32 along the slag guide tube 33.

[0015] Preferably, the waste gas adsorber 24 is an activated carbon adsorber. Using an activated carbon adsorber for the waste gas adsorber 24 allows for the adsorption of volatile organic compounds and magnesium vapors from the waste gas.

[0016] Preferably, the support rod 21 includes a fixed cylinder 211, a lifting rod 212, and a fastener 213. The fixed cylinder 211 is a straight cylinder, vertically arranged, with its lower end fixedly mounted on the inspection platform 1. Its upper outer wall has external threads, and its upper end has multiple slots 214 extending downwards from the end and penetrating the side wall, evenly spaced along the circumference. The lifting rod 212 is a straight rod with a diameter matching the inner diameter of the fixed cylinder 211. The lower end of the lifting rod 212 is inserted into the fixed cylinder 211 from its upper end, and its upper end is fixedly connected to the gas collection hood 22. The fastener 213 is cylindrical, with a frustum-shaped fastening cavity connecting both ends of the fastener 213. The lower diameter of the fastening cavity is the same as the outer diameter of the fixed cylinder 211, and the upper diameter of the fastening cavity is smaller than the outer diameter of the fixed cylinder 211 but larger than the outer diameter of the lifting rod 212. The inner wall of the fastening cavity is provided with an internal thread that matches the external thread. The fastener 213 is sleeved on the upper end of the fixed cylinder 211 to fix the fixed cylinder 211 and the lifting rod 212.

[0017] By setting up a support rod 21 including a fixed cylinder 211, a lifting rod 212, and a fastener 213, the lifting rod 212 is inserted into the fixed cylinder 211 and fixed by the fastener 213. By rotating the fastener 213, the length of the support rod 21 can be adjusted, thereby adjusting the height of the gas collection hood 22 as needed, improving the absorption efficiency of magnesium slag dust and exhaust gas. When adjusting the height of the support rod 21, rotate the fastener 213 upwards to move the fastener 213 upwards, reducing the inward pressure on the fixed cylinder 211. The side wall at the upper end of the fixed cylinder 211 springs outwards, loosening the lifting rod 212. Then, move the lifting rod 212 to a suitable height. Finally, tighten the fastener 213 downwards to move the fastener 213 downwards, increasing the inward pressure on the fixed cylinder 211. The side wall at the upper end of the fixed cylinder 211 contracts inwards under pressure, clamping the lifting rod 212 and fixing it.

[0018] Preferably, the inside of the collection box 32 is provided with an antistatic coating. The antistatic coating can prevent magnesium slag from igniting due to friction.

[0019] Preferably, the device also includes a controller 46, which is connected to the induced draft fan 23, the pH sensor 45 and the liquid addition valve 471, for controlling the automatic operation of the device.

[0020] Connect the controller 46 to the liquid addition valve 471 and the pH sensor 45. The pH sensor 45 measures the pH value of the liquid in the neutralization tank 41. The controller 46 can control the liquid addition valve 471 to open based on the pH value of the liquid in the neutralization tank 41, automatically adding neutralizing liquid to the neutralization tank 41 to neutralize the magnesium solution. Connect the controller 46 to the induced draft fan 23 to control the induced draft fan 23 to work automatically.

[0021] Preferably, the bottom of the inspection platform 1 is provided with a plurality of support legs 14, which are arranged vertically and whose upper ends are fixedly connected to the inspection platform 1. Attached Figure Description

[0022] Figure 1 Schematic diagram of the overall structure of the magnesium alloy die-casting filling pipe maintenance platform;

[0023] Figure 2 Schematic diagram of the internal structure of the collection box;

[0024] Figure 3 Schematic diagram of the internal structure of the neutralization box;

[0025] Figure 4 Schematic diagram of the support rod structure.

[0026] In the diagram, 1. Inspection platform, 11. Liquid outlet, 12. Baffle, 13. Slag discharge port, 14. Support leg, 2. Waste gas treatment device, 21. Support rod, 211. Fixed cylinder, 212. Lifting rod, 213. Fastener, 214. Strip-shaped inlet, 22. Gas collection hood, 221. Gas collection port, 222. Hydrogen concentration sensor, 223. Alarm, 23. Exhaust fan, 24. Waste gas adsorber, 25. Exhaust duct, 251. Filter screen, 26. Exhaust duct, 27. 3. Magnesium slag treatment device, 31. Collection box, 311. Feed inlet, 312. Box door, 32. Collection box, 33. Slag guide tube, 4. Magnesium liquid neutralization device, 41. Neutralization box, 42. Connecting pipe, 43. Stirring mechanism, 431. Stirring motor, 432. Stirring rod, 433. Stirring blade, 44. Liquid addition tank, 45. pH sensor, 46. Controller, 47. Liquid addition pipe, 471. Liquid addition valve, 48. Discharge port, 481. Discharge valve. Detailed Implementation

[0027] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the magnesium alloy die-casting filling pipe maintenance platform includes a maintenance platform 1, a waste gas treatment device 2, a magnesium slag treatment device 3, a magnesium liquid neutralization device 4, and a controller 46. The maintenance platform 1 is equipped with a liquid outlet 11. A baffle 12 is provided on the outer periphery of the top surface of the maintenance platform 1. The baffle 12 forms a slag discharge port 13 above the collection box 31. A slag guide cylinder 33 is provided at the slag discharge port 13. The upper end of the slag guide cylinder 33 is connected to the slag discharge port 13, and the lower end extends into the feed inlet 311 of the collection box 31.

[0029] By setting a baffle 12 on the outer periphery of the top surface of the maintenance platform 1, the magnesium slag can be prevented from falling and can be allowed to enter the collection box 32 along the slag guide tube 33.

[0030] The bottom of the inspection platform 1 is provided with multiple support legs 14, which are arranged vertically and fixedly connected to the inspection platform 1 at their upper ends.

[0031] The exhaust gas treatment device 2 includes a support rod 21, a gas collection hood 22, an induced draft fan 23, an exhaust gas adsorber 24, and a slag discharge pipe 27. The lower end of the support rod 21 is fixedly installed on the maintenance platform 1.

[0032] The gas collection hood 22 is a conical shell with an opening facing downwards. The gas collection hood 22 is fixedly connected to the upper end of the support rod 21 and is installed above the inspection platform 1. The top of the gas collection hood 22 is provided with a gas collection port 221.

[0033] The gas collection hood 22 is equipped with a hydrogen concentration sensor 222 and an alarm 223, which can detect the concentration of waste gases such as hydrogen. When the concentration exceeds the limit, the alarm 223 will sound an alarm.

[0034] The induced draft fan 23 is located on one side of the inspection platform 1. The air inlet of the induced draft fan 23 is connected to the air collection port 221 through the air duct 25, and the air outlet of the induced draft fan 23 is connected to the waste gas adsorber 24 through the air outlet duct 26.

[0035] The exhaust gas adsorber 24 is an activated carbon adsorber. By using an activated carbon adsorber, the exhaust gas adsorber 24 can adsorb volatile organic compounds and magnesium vapors from the exhaust gas.

[0036] By setting up the exhaust gas treatment device 2 and placing the gas collection hood 22 above the maintenance platform 1, and turning on the exhaust fan 23, the magnesium vapor and magnesium slag dust generated during the maintenance of the liquid filling pipe can be drawn into the exhaust pipe 25 through the gas collection hood 22, and then discharged into the exhaust gas adsorber 24 for adsorption treatment, so as to prevent magnesium vapor and other exhaust gases from harming equipment and personnel safety and polluting the environment.

[0037] A filter screen 251 is installed inside the air duct 25. One end of the slag discharge pipe 27 is connected to the air duct 25 and the inside is connected. The connection point is located in front of the filter screen 251. The other end of the slag discharge pipe 27 extends into the inlet 311 of the collection box 31.

[0038] By setting up a slag discharge pipe 27 and a filter screen 251 inside the exhaust pipe 25, the magnesium vapor and exhaust gas can be filtered to remove small particles such as magnesium slag dust. The magnesium slag is then allowed to enter the collection box 32 along the slag discharge pipe 27, while the magnesium vapor and exhaust gas enter the exhaust gas adsorber 24 for treatment.

[0039] like Figure 1 and Figure 2 As shown, the magnesium slag treatment device 3 includes a collection box 31 and a collection box 32. The collection box 31 is fixedly installed on one side of the maintenance platform 1. The upper part of the collection box 31 is provided with a feed inlet 311, the inside is provided with a cavity to accommodate the collection box 32, and the side wall is provided with a box door 312.

[0040] The collection box 32 is located inside the collection container 31. The collection box 32 has an opening at the top and an antistatic coating inside. The antistatic coating can prevent magnesium slag from igniting due to friction.

[0041] When the collection box 32 is full, the box door 312 can be opened to remove the collection box 32 and transfer it to a safe area for water immersion treatment. Magnesium reacts with water to produce hydrogen gas, which needs to be treated in a ventilated place.

[0042] By installing a magnesium slag treatment device 3 on one side of the maintenance platform 1, the magnesium slag generated during the maintenance of the liquid filling pipe can be collected in the collection box 31 for unified treatment.

[0043] like Figure 1 and Figure 3 As shown, the magnesium liquid neutralization device 4 includes a neutralization tank 41, a stirring mechanism 43, a liquid addition tank 44, and a pH sensor 45. The neutralization tank 41 is located below the maintenance platform 1 and is connected to the liquid outlet 11 through a connecting pipe 42. The neutralization tank 41 contains neutralizing liquid.

[0044] Neutralization box 41 is made of acid and alkali resistant material.

[0045] The bottom of the side wall of the neutralization tank 41 is provided with a discharge port 48, and a discharge valve 481 is provided on the discharge port.

[0046] The stirring mechanism 43 includes a stirring motor 431 and a stirring rod 432. The stirring motor 431 is fixedly installed on the top of the neutralization tank 41. The stirring rod 432 is vertically arranged, with its upper end fixedly connected to the output shaft of the stirring motor 431 and its lower end extending through the top surface of the neutralization tank 41 into the interior of the neutralization tank 41. A stirring blade 433 is provided at the lower end.

[0047] By setting up a stirring mechanism 43, the stirring motor 431 rotates and drives the stirring rod 432 to rotate. The stirring blades 433 at the lower end of the stirring rod 432 can stir the magnesium liquid in the neutralization tank 41, so that the magnesium liquid can fully react with the neutralizing liquid and fully process the magnesium liquid.

[0048] A liquid addition tank 44 is located at the top of the neutralization tank 41. The bottom of the liquid addition tank 44 is connected to the neutralization tank 41 via a liquid addition pipe 47, and a liquid addition valve 471 is provided on the liquid addition pipe 47. A pH sensor 45 is located inside the neutralization tank 41.

[0049] By setting up a liquid addition tank 44, which is connected to a neutralization tank 41 via a liquid addition pipe 47, a liquid addition valve 471 is installed on the liquid addition pipe 47, and a pH sensor 45 is installed inside the neutralization tank 41. The pH value of the liquid inside the neutralization tank 41 is measured by the pH sensor 45, and the liquid addition valve 471 is opened according to the pH value of the liquid inside the neutralization tank 41 to automatically add neutralizing liquid, such as dilute hydrochloric acid or citric acid solution, into the neutralization tank 41 to neutralize the magnesium solution. The neutralized waste liquid is discharged to the sewage treatment system through the discharge port 48 under the control of the discharge valve 481.

[0050] The magnesium liquid neutralization device 4 is used to set the neutralization box 41 below the maintenance platform 1. It is connected to the liquid outlet 11 through the connecting pipe 42. The box is filled with neutralizing liquid, which allows the residual magnesium liquid in the filling pipe to flow into the neutralization box 41 for neutralization treatment, preventing the magnesium liquid from spontaneously combusting or corroding the maintenance equipment and causing injury to the maintenance personnel.

[0051] like Figure 1 and Figure 4 As shown, the support rod 21 includes a fixed cylinder 211, a lifting rod 212 and a fastener 213. The fixed cylinder 211 is a straight cylinder, vertically arranged, with its lower end fixedly mounted on the inspection platform 1. The upper outer wall is provided with external threads, and the upper end is provided with multiple strip-shaped openings 214 extending downward from the end and penetrating the side wall. The multiple strip-shaped openings 214 are distributed at equal intervals along the circumference.

[0052] The lifting rod 212 is a straight rod with a diameter that matches the inner diameter of the fixed cylinder 211. The lower end of the lifting rod 212 is inserted into the fixed cylinder 211 from the upper end, and the upper end is fixedly connected to the gas collection hood 22.

[0053] The fastener 213 is cylindrical, with a frustum-shaped fastening cavity inside that connects the two ends of the fastener 213. The diameter of the lower end of the fastening cavity is the same as the outer diameter of the fixed cylinder 211, and the diameter of the upper end of the fastening cavity is smaller than the outer diameter of the fixed cylinder 211 but larger than the outer diameter of the lifting rod 212. The inner wall of the fastening cavity is provided with an internal thread that matches the external thread. The fastener 213 is fitted onto the upper end of the fixed cylinder 211, fixing the fixed cylinder 211 and the lifting rod 212.

[0054] By setting the support rod 21, which includes a fixed cylinder 211, a lifting rod 212, and a fastener 213, the lifting rod 212 is inserted into the fixed cylinder 211 and fixed by the fastener 213. By rotating the fastener 213, the length of the support rod 21 can be adjusted, thereby adjusting the height of the gas collection hood 22 as needed, and improving the absorption efficiency of magnesium slag dust and waste gas.

[0055] When adjusting the height of the support rod 21, rotate the fastener 213 upward to move the fastener 213 upward, which reduces the pressure on the fixed cylinder 211 inward. The side wall at the upper end of the fixed cylinder 211 springs outward, loosening the lifting rod 212. Then move the lifting rod 212 to a suitable height. Finally, tighten the fastener 213 downward to move the fastener 213 downward, which increases the pressure on the fixed cylinder 211 inward. The side wall at the upper end of the fixed cylinder 211 contracts inward under pressure, clamping the lifting rod 212 and fixing it.

[0056] The controller 46 is connected to the induced draft fan 23, pH sensor 45, liquid filling valve 471, hydrogen concentration sensor 222, alarm 223 and discharge valve 481. The liquid filling valve 471, the discharge valve 481 and the discharge valve 481 are all solenoid valves.

[0057] Connect the controller 46 to the liquid addition valve 471 and the pH sensor 45. The pH sensor 45 measures the pH value of the liquid in the neutralization tank 41. Based on the pH value, the controller 46 controls the liquid addition valve 471 to open, automatically adding neutralizing liquid to the neutralization tank 41 to neutralize the magnesium solution. Connect the controller 46 to the induced draft fan 23. Based on the exhaust gas concentration detected by the exhaust gas sensor, the controller can automatically operate the induced draft fan 23 and adjust its speed. When the exhaust gas concentration exceeds the limit, the alarm will sound automatically.

[0058] When using this invention, before maintenance, unfold the gas collection hood 22 and start the induced draft fan 23 to ensure a negative pressure environment in the operating area. Then, inspect the filling pipe. The exhaust gas generated during maintenance is adsorbed by the exhaust gas adsorber 24 and then discharged. Use a high-pressure air gun to blow away the magnesium slag, causing it to fall into the collection drawer. Once the drawer is full, transfer it to a safe area for water immersion treatment. The residual magnesium liquid is discharged into the neutralization tank 41 through the connecting pipe 42. The magnesium liquid is neutralized by the neutralizing liquid, and the neutralized waste liquid is discharged into the wastewater treatment system.

[0059] This invention incorporates a waste gas treatment device 2, with a gas collection hood 22 positioned above the maintenance platform 1. When the induced draft fan 23 is turned on, magnesium vapor and magnesium slag dust generated during the maintenance of the filling pipe are drawn into the induced draft pipe 25 through the gas collection hood 22, and then discharged into the waste gas adsorber 24 for adsorption treatment. This prevents magnesium vapor and other waste gases from harming equipment and personnel safety, and from polluting the environment. A magnesium slag treatment device 3 is installed on one side of the maintenance platform 1 to collect the magnesium slag generated during the maintenance of the filling pipe into a collection box 31 for unified treatment. A magnesium liquid neutralization device 4 is used, with a neutralization box 41 positioned below the maintenance platform 1 and connected to the liquid outlet 11 via a connecting pipe 42. The neutralization box contains neutralizing liquid, allowing residual magnesium liquid in the filling pipe to flow into the neutralization box 41 for neutralization treatment, preventing spontaneous combustion of magnesium liquid or corrosion of the maintenance equipment and potential harm to maintenance personnel. By setting up a stirring mechanism 43, the stirring motor 431 rotates and drives the stirring rod 432 to rotate. The stirring blades 433 at the lower end of the stirring rod 432 can stir the magnesium liquid in the neutralization tank 41, so that the magnesium liquid can fully react with the neutralizing liquid and fully process the magnesium liquid.

[0060] By setting up a liquid addition tank 44, which is connected to a neutralization tank 41 via a liquid addition pipe 47, a liquid addition valve 471 is installed on the liquid addition pipe 47, and a pH sensor 45 is installed inside the neutralization tank 41. The pH value of the liquid inside the neutralization tank 41 is measured by the pH sensor 45, and the liquid addition valve 471 is opened according to the pH value of the liquid inside the neutralization tank 41 to add neutralizing liquid, such as dilute hydrochloric acid or citric acid solution, into the neutralization tank 41 to neutralize the magnesium solution. After treatment, the solution is discharged into the wastewater treatment system.

[0061] By installing baffles 12 on the outer periphery of the top surface of the inspection platform 1, magnesium slag can be prevented from falling and can be allowed to enter the collection box 32 along the slag guide tube 33. By setting a support rod 21 including a fixed cylinder 211, a lifting rod 212 and fasteners 213, the lifting rod 212 is inserted into the fixed cylinder 211 and fixed by the fasteners 213. By rotating the fasteners 213, the length of the support rod 21 can be adjusted, thereby adjusting the height of the gas collection hood 22 as needed, and improving the absorption efficiency of magnesium slag dust and exhaust gas.

[0062] It should be noted that the above embodiments are illustrative of the present invention and not intended to limit the present invention.

Claims

1. A magnesium alloy die casting feed tube inspection platform, characterized by, It includes an inspection platform (1), a waste gas treatment device (2), a magnesium slag treatment device (3), and a magnesium liquid neutralization device (4). The inspection platform (1) is equipped with a liquid outlet (11). The waste gas treatment device (2) includes a support rod (21), a gas collection hood (22), an induced draft fan (23), and a waste gas adsorber (24). The lower end of the support rod (21) is fixedly mounted on the inspection platform (1); The gas collection hood (22) is a conical shell with the opening facing downwards. The gas collection hood (22) is fixedly connected to the upper end of the support rod (21) and is placed above the inspection platform (1). The top of the gas collection hood (22) is provided with a gas collection port (221). The induced draft fan (23) is located on one side of the maintenance platform (1). The air inlet of the induced draft fan (23) is connected to the air collection port (221) through the air pipe (25), and the air outlet of the induced draft fan (23) is connected to the waste gas adsorber (24) through the air outlet pipe (26). The magnesium slag treatment device (3) includes a collection box (31) and a collection container (32). The collection box (31) is fixedly installed on one side of the inspection platform (1). The upper part of the collection box (31) is provided with a feed inlet (311), the interior is provided with a cavity to accommodate the collection box (32), and the side wall is provided with a box door (312). The collection box (32) is disposed inside the collection box (31), and the upper part of the collection box (32) is open; The magnesium liquid neutralization device (4) includes a neutralization box (41). The neutralization box (41) is located below the inspection platform (1). The neutralization box (41) is connected to the liquid outlet (11) through the connecting pipe (42), and is filled with neutralizing liquid.

2. The magnesium alloy die casting feed tube access platform of claim 1, wherein, The magnesium liquid neutralization device (4) also includes a stirring mechanism (43). The stirring mechanism (43) includes a stirring motor (431) and a stirring rod (432). The stirring motor (431) is fixedly installed on the top of the neutralization box (41). The stirring rod (432) is vertically installed, with its upper end fixedly connected to the output shaft of the stirring motor (431) and its lower end extending through the top surface of the neutralization box (41) into the interior of the neutralization box (41). The lower end is provided with stirring blades (433).

3. The magnesium alloy die casting sprue tube access platform of claim 2, wherein, The magnesium liquid neutralization device (4) also includes a liquid addition tank (44) and a pH sensor (45). The liquid addition tank (44) is located on top of the neutralization tank (41), and the bottom of the liquid addition tank (44) is connected to the neutralization tank (41) through the liquid addition pipe (47). The liquid addition pipe (47) is equipped with a liquid addition valve (471). The pH sensor (45) is located inside the neutralization chamber (41).

4. The magnesium alloy die casting sprue tube access platform of claim 3, wherein, The maintenance platform (1) has a baffle (12) on the outer periphery of its top surface. The baffle (12) has a slag discharge port (13) located above the collection box (31). A slag guide cylinder (33) is provided at the slag discharge port (13). The upper end of the slag guide cylinder (33) is connected to the slag discharge port (13), and the lower end extends into the feed inlet (311) of the collection box (31).

5. The magnesium alloy die casting feed tube access platform of claim 4, wherein, The waste gas adsorber (24) is an activated carbon adsorber.

6. The magnesium alloy die casting sprue tube access platform of claim 5, wherein, The support rod (21) includes a fixed cylinder (211), a lifting rod (212), and a fastener (213). The fixed cylinder (211) is a straight cylinder, vertically arranged, with its lower end fixedly mounted on the inspection platform (1). The upper outer wall is provided with external threads, and the upper end is provided with multiple strip-shaped openings (214) extending downward from the end and penetrating the side wall. The multiple strip-shaped openings (214) are distributed at equal intervals along the circumference. The lifting rod (212) is a straight rod with a diameter that matches the inner diameter of the fixed cylinder (211). The lower end of the lifting rod (212) is inserted into the fixed cylinder (211) from the upper end, and the upper end is fixedly connected to the gas collection hood (22). The fastener (213) is cylindrical and has a frustum-shaped fastening cavity inside that connects the two ends of the fastener (213). The diameter of the lower end of the fastening cavity is the same as the outer diameter of the fixed cylinder (211), and the diameter of the upper end of the fastening cavity is smaller than the outer diameter of the fixed cylinder (211) and larger than the outer diameter of the lifting rod (212). The inner wall of the fastening cavity is provided with an internal thread that matches the external thread. The fastener (213) is sleeved on the upper end of the fixed cylinder (211) to fix the fixed cylinder (211) and the lifting rod (212).

7. The magnesium alloy die casting sprue tube access platform of claim 6, wherein, The inside of the collection box (32) is provided with an antistatic coating.

8. The magnesium alloy die casting sprue tube access platform of claim 7, wherein, It also includes a controller (46). The controller (46) is connected to the induced draft fan (23), pH sensor (45) and liquid filling valve (471) to control the automatic operation of the device.

9. The magnesium alloy die casting feed tube access platform of claim 8, wherein, The bottom of the inspection platform (1) is provided with multiple support legs (14). The support leg (14) is vertically arranged and its upper end is fixedly connected to the inspection platform (1).

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