Apparatus for dehydrogenation of a metallic material and method of use thereof

Abstract

The present application relates to the technical field of steel metallurgy, and discloses a device for dehydrogenation of metal materials, which comprises a heating furnace, a furnace door is slidably connected to the opening of the heating furnace, a plurality of round rods are fixedly connected to the inner bottom of the heating furnace, and a gas exchange assembly for introducing hot steam into the heating furnace is installed on the side of the heating furnace away from the furnace door; the gas exchange assembly comprises an air inlet pipe in communication with the heating furnace, a heating tank is communicated with the end of the air inlet pipe away from the heating furnace, an air outlet pipe is in communication between the heating furnace and the heating tank, and a delayed recovery assembly is arranged at the end of the air outlet pipe close to the heating furnace; the delayed recovery assembly comprises a first storage box fixedly connected to the heating furnace, and a longitudinal pipe is in communication between the top of the first storage box and the air outlet pipe. The present application solves the problem that the heating furnace maintaining a vacuum state in the prior art has a long time for vacuumizing before heating the metal material and for waiting for the heating medium, resulting in a slow heating speed of the metal material.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy technology, and in particular to an apparatus for dehydrogenation of metallic materials and its method of use. Background Technology

[0002] When the hydrogen content in a metallic material reaches a certain value, its mechanical properties will be severely reduced, and even hydrogen embrittlement may occur. Hydrogen in metals may form solid solutions, hydrides, or molecular hydrogen gas, or it may react chemically with the second phase in the metal to generate gaseous products that exist in the metal. From the analysis of hydrogen in metals, the sources can be divided into two types: one is hydrogen absorbed during the smelting process and subsequent processing, and the other is hydrogen contained in the service environment medium of the metal.

[0003] Traditional methods for dehydrogenating metal materials involve baking them in a conventional furnace. However, once baking stops and cooling begins, the metal material reabsorbs hydrogen due to the cooling process, resulting in a decrease in the dehydrogenation effect. Therefore, a furnace capable of maintaining a vacuum is needed to prevent the dehydrogenation effect from deteriorating due to hydrogen absorption during cooling. However, the furnace requires evacuation and heating of the internal medium before it can heat the metal material, which results in a long heating time and a slow heating rate. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, the heating furnace that maintains a vacuum state has a long time for vacuuming and waiting for the heating medium before heating the metal material, resulting in a slow heating rate of the metal material. Therefore, this invention proposes a device for dehydrogenation of metal materials and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for dehydrogenation of metallic materials includes a heating furnace, a furnace door slidably connected to the opening of the heating furnace, a plurality of round rods fixedly connected to the bottom inner side of the heating furnace, a heating platform slidably connected to the top of the round rods, and an air exchange component for introducing hot steam into the heating furnace is installed on the side of the heating furnace away from the furnace door.

[0007] The ventilation assembly includes an air inlet pipe connected to the heating furnace, an air inlet pipe connected to a heating tank at the end away from the heating furnace, an electric heating rod extending into the heating tank at one side, a first valve connected to the end of the air inlet pipe near the heating furnace, an exhaust pipe connected between the heating furnace and the heating tank, and a delayed recovery assembly at the end of the exhaust pipe near the heating furnace.

[0008] The delayed recovery component includes a first storage box fixedly connected to the heating furnace. A longitudinal pipe is connected between the top of the first storage box and the exhaust pipe. A partition plate for dividing the exhaust pipe into upper and lower parts is fixedly connected to one end of the exhaust pipe near the heating furnace. A vent is provided on the top of the partition plate. A folding plate is slidably connected to the top of the partition plate. A perforation corresponding to the vent is provided on the top of the folding plate.

[0009] Preferably, a vacuum pump for evacuating the interior of the heating furnace is fixedly connected to the top of the heating furnace, a resistance wire is installed on the inner wall of the heating furnace away from the furnace door, and a controller for controlling the vacuum pump and the resistance wire is installed on the side of the heating furnace away from the furnace door. The vacuum pump and the resistance wire are electrically connected to the controller through wires.

[0010] Preferably, the exhaust pipe includes a thin pipe communicating with the heating furnace, a first square pipe connected to the end of the thin pipe away from the heating furnace, a second square pipe connected to the end of the first square pipe away from the thin pipe, a partition plate fixedly connected to the thin pipe and the first square pipe, and a top of the folding plate slidably connected to the top inner side of the first square pipe. The height of the first square pipe is H1, and the height of the second square pipe is H2, satisfying the following relationship:

[0011] H1 < H2.

[0012] Preferably, a sliding plate is slidably connected between the two sides of the inner wall of the second square tube, and a push rod for pushing the folding plate is fixedly connected to the side of the sliding plate near the partition plate.

[0013] Preferably, a first motor is fixedly connected to the bottom inner side of the second square tube, and the output end of the first motor is provided with a first threaded rod that moves through the slide plate at one end.

[0014] Preferably, a push plate is slidably connected between the two sides of the inner wall of the first storage box, and a second threaded rod is provided on one side of the push plate, with one end extending movably to the outside of the first storage box. A handle is fixedly connected to the end of the second threaded rod away from the first storage box.

[0015] Preferably, a support rod is fixedly connected to the side of the heating tank near the heating furnace, and a second storage box communicating with the second square tube is fixedly connected to the top of the support rod. A second valve communicates between the second storage box and the heating tank.

[0016] Preferably, a support frame is fixedly connected to the side of the heating furnace near the furnace door, a winding frame is fixedly connected to the top of the support frame, a winding rod is rotatably connected between the two sides of the winding frame, a second motor for driving the winding rod to rotate is fixedly connected to one side of the winding frame, a traction rope is fixedly connected between the top of the furnace door and the winding rod, and a limiting post for guiding the movement path of the traction rope is fixedly connected to the top of the support frame.

[0017] Preferably, the heating platform has a transverse groove extending through the heating platform on the side near the exhaust pipe, a water storage tank is provided at the bottom of the inner side of the transverse groove, a groove is provided inside the heating platform, a connecting pipe is provided on the side of the heating platform near the exhaust pipe with one end extending into the groove and the water storage tank, a transverse plate corresponding to the partition plate is fixedly connected between the two sides of the inner wall of the connecting pipe, a drain groove communicating with the transverse groove is provided on the top of the heating platform, and a blower for introducing air into the first storage box is fixedly connected to one side of the heating furnace.

[0018] A method of using a device for dehydrogenation of a metallic material includes the following steps:

[0019] Step 1: Add materials, open the furnace door, move the heating platform outside the furnace, place the metal materials to be dehydrogenated on the heating platform, then push the heating platform into the furnace, and finally close the furnace door.

[0020] Step 2, preheating: The hot steam generated inside the heating tank is introduced into the heating furnace. The hot steam pushes the cooler air inside the heating furnace to the outside of the heating furnace, and the hot steam preheats the cooler metal material on the heating platform.

[0021] Step 3, waste heat collection: First, the low-temperature air discharged from the furnace is vented away. Then, the hot steam discharged from the furnace is collected and discharged back into the heating tank. After the heating tank heats the air inside, it is discharged back into the furnace. Finally, the valve between the furnace and the heating tank is closed. The hot steam in contact with the metal material condenses into water, creating a negative pressure environment inside the furnace.

[0022] Step 4: Vacuum heating. Start the vacuum pump to evacuate the inside of the heating furnace and maintain the vacuum environment inside the furnace. Then start the resistance wire to heat the inside of the heating furnace.

[0023] Step 5: Remove the material, turn off the resistance wire and vacuum pump, open the furnace door, wait for the internal temperature of the heating furnace to cool down, then move the heating platform outside the heating furnace and remove the metal material from the heating platform.

[0024] Compared with the prior art, the present invention provides an apparatus for dehydrogenation of metallic materials and a method for using the same, which has the following beneficial effects:

[0025] 1. The ventilation component of this invention introduces hot steam into the heating furnace, pushing the originally low-temperature air inside the heating furnace to the outside of the heating furnace, shortening the time required for heating the medium inside the heating furnace. The metal material is initially heated by contact with the hot steam. Due to the condensation of the hot steam, a negative pressure environment is formed inside the heating furnace, shortening the time required for vacuuming the inside of the heating furnace. This achieves the purpose of reducing the time required for vacuuming and heating the medium before heating the metal in a vacuum-maintaining heating furnace, and accelerates the heating and dehydrogenation speed of the metal material.

[0026] 2. After the vacuum pump of this invention evacuates the furnace to a suitable range, the resistance wire stabilizes the temperature inside the furnace within a suitable range. The controller controls the temperature inside the furnace. When baking stops, cooling begins. Because the furnace is kept in a vacuum state, the metal material will not absorb hydrogen due to cooling, thus achieving the purpose of dehydrogenation.

[0027] 3. In this invention, the air with a lower temperature inside the heating furnace is forced into the exhaust pipe, and the air with a lower temperature passes through the perforation and vent to enter the first storage box. Excess steam entering the heating furnace returns to the heating tank through the exhaust pipe and is recycled. This can recycle excess steam entering the heating furnace, reduce heat loss, and prevent the air with a lower temperature inside the heating furnace from being recycled.

[0028] 4. In this invention, the pusher plate moves away from the heating furnace, increasing the amount of air that can enter the first collection box through the exhaust pipe. The time for delaying steam collection can be adjusted as needed to meet the needs of heating furnaces of different volumes to recover the steam discharged from inside, thereby maximizing the proportion of steam in the recovered gas and improving the efficiency of heat utilization.

[0029] 5. The blower of this invention continuously cools the heating platform by blowing into the groove of the heating platform, which can increase the utilization of steam condensation to form negative pressure inside the heating furnace, reduce the power consumption of the vacuum pump to evacuate the heating furnace, and blow air directly into the heating furnace, which can quickly cool the metal and the heating furnace, prevent the internal heat from causing injury to the staff when the heating furnace is opened, and at the same time reduce the waiting time required for the metal to cool naturally. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall side structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the ventilation assembly of the present invention;

[0033] Figure 4 This is an internal cross-sectional view of the exhaust pipe of the present invention;

[0034] Figure 5 This is an internal cross-sectional view of the first storage box of the present invention;

[0035] Figure 6 This is a schematic diagram of the support frame of the present invention;

[0036] Figure 7 This is a schematic diagram of the heating furnace of the present invention;

[0037] Figure 8 This is a schematic diagram of the support rod and heating platform of the present invention;

[0038] Figure 9 This is a partial cross-sectional view of the support rod and heating platform of the present invention.

[0039] In the diagram: 1. Heating furnace; 2. Furnace door; 3. Vacuum pump; 4. Resistance wire; 5. Controller; 6. Ventilation assembly; 61. Inlet pipe; 62. Heating tank; 63. First valve; 64. Exhaust pipe; 641. Thin tube; 642. First square tube; 643. Second square tube; 65. Delayed recovery assembly; 651. First storage box; 652. Divider plate; 653. Folding plate; 7. Round rod; 8. Heating platform; 9. Slide plate; 10. Push rod; 11. First motor; 12. First threaded rod; 13. Push plate; 14. Second threaded rod; 15. Handle; 16. Support rod; 17. Second storage box; 18. Second valve; 19. Support frame; 20. Winding frame; 21. Second motor; 22. Traction rope; 23. Limiting post; 24. Connecting pipe; 25. Horizontal plate. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Example 1

[0043] Reference Figures 1-4A device for dehydrogenating metallic materials includes a heating furnace 1. A furnace door 2 is slidably connected to the opening of the heating furnace 1. Multiple round rods 7 are fixedly connected to the bottom inner side of the heating furnace 1, and a heating platform 8 is slidably connected to the top of the round rods 7. A ventilation assembly 6 for introducing hot steam into the heating furnace 1 is installed on the side of the heating furnace 1 away from the furnace door 2. The furnace door 2 is opened, the heating platform 8 is moved to the outside of the heating furnace 1, and then the metallic material to be dehydrogenated is placed on the heating platform 8. The heating platform 8 is moved into the heating furnace 1, and then the furnace door 2 is closed. The ventilation assembly 6 introduces hot steam into the heating furnace 1, pushing out the originally cooler air inside the heating furnace 1. Outside the furnace 1, the connection between the heating furnace 1 and the ventilation assembly 6 is then disconnected. At this time, the heating furnace 1 does not exchange air with the outside. The hot steam entering the heating furnace 1 quickly and initially heats the interior of the heating furnace 1, shortening the time required for heating the medium inside the heating furnace 1. After the hot steam comes into contact with the lower-temperature metal material, it condenses into water. The metal material is initially heated by contact with the hot steam. Due to the condensation of the hot steam, a negative pressure environment is formed inside the heating furnace 1, shortening the time required for vacuuming the interior of the heating furnace 1. This achieves the goal of reducing the time required for vacuuming and heating the medium before heating the metal in the heating furnace 1, thus accelerating the heating and dehydrogenation rate of the metal material.

[0044] The ventilation assembly 6 includes an air inlet pipe 61 connected to the furnace 1. The end of the air inlet pipe 61 furthest from the furnace 1 is connected to a heating tank 62. A heating rod extending into the heating tank 62 is located on one side of the heating tank. A first valve 63 is connected to the end of the air inlet pipe 61 closest to the furnace 1. An exhaust pipe 64 connects the furnace 1 and the heating tank 62. A delayed recovery assembly 65 is located at the end of the exhaust pipe 64 closest to the furnace 1. The heating rod inside the heating tank 62 continuously heats the water inside the tank into steam. When the furnace door 2 is closed, the first valve 63 is opened, and the hot steam inside the heating tank 62 enters the furnace 1 through the air inlet pipe 61, pushing the cooler air in the furnace 1 into the exhaust pipe 64. Hot steam continues to flow into the furnace 1, filling it with steam. The heating furnace 1 also enters the exhaust pipe 64. The delayed recovery component 65 recovers the hot steam entering the exhaust pipe 64, closes the first valve 63, and blocks the connection between the heating furnace 1 and the exhaust pipe 64. The hot steam inside the heating furnace 1 initially heats the metal material. Some of the hot steam condenses into water on the surface of the metal material, creating a negative pressure inside the heating furnace 1. Then, the heating furnace 1 is evacuated and heated, so that the metal material is heated and dehydrogenated in a vacuum environment. Before the vacuum heating inside the heating furnace 1, preheating treatment is performed. Preheated steam is directly injected to squeeze out the air with a lower temperature inside the heating furnace 1, shortening the time required for the heating furnace 1 to heat its internal medium. At the same time, a negative pressure state is created inside the heating furnace 1, shortening the time required for evacuating the heating furnace 1.

[0045] The delayed recovery assembly 65 includes a first storage box 651 fixedly connected to the heating furnace 1. A longitudinal pipe connects the top of the first storage box 651 to an exhaust pipe 64. A partition plate 652, dividing the exhaust pipe 64 into upper and lower parts, is fixedly connected to the end of the exhaust pipe 64 near the heating furnace 1. A vent is provided at the top of the partition plate 652, and a slidable baffle plate 653 is slidably connected to the top of the partition plate 652. A perforation corresponding to the vent is provided at the top of the baffle plate 653. Initially, the perforation on the baffle plate 653 aligns with the vent on the partition plate 652. When steam enters the heating furnace 1 through the inlet pipe 61, the cooler air inside the heating furnace 1 is forced into the exhaust pipe 64. Since the exhaust pipe 64 is blocked by the baffle plate 653, the cooler air passes through the perforation and vent into the first storage box 651 until the steam entering the heating furnace 1 gradually... As the amount of gas increases, the amount of gas squeezed into the exhaust pipe 64 also gradually increases, and the air pressure inside the exhaust pipe 64 gradually increases until the air pressure inside the exhaust pipe 64 reaches a certain level. Due to the air pressure difference on both sides, the baffle plate 653 is pushed towards the heating tank 62 until the baffle plate 653 moves to the area where the height of the exhaust pipe 64 increases. The baffle plate 653 no longer completely blocks the exhaust pipe 64, and the air inside the heating furnace 1 moves towards the heating tank 62 through the baffle plate 653 until the connection between the heating tank 62 and the heating furnace 1 is interrupted. The air with a lower temperature inside the heating furnace 1 enters the first storage box 651 and is stored, while the excess steam entering the heating furnace 1 returns to the heating tank 62 through the exhaust pipe 64 and is recycled. This can recycle the excess steam entering the heating furnace 1, reduce heat loss, and prevent the air with a lower temperature inside the heating furnace 1 from being recycled.

[0046] A vacuum pump 3 for evacuating the interior of the heating furnace 1 is fixedly connected to the top of the furnace 1. A resistance wire 4 is installed on the inner wall of the furnace 1 away from the furnace door 2. A controller 5 for controlling the vacuum pump 3 and the resistance wire 4 is also installed on the same side of the furnace 1 away from the furnace door 2. Both the vacuum pump 3 and the resistance wire 4 are electrically connected to the controller 5 via wires. After the metal material to be dehydrogenated is placed inside the heating furnace 1 and the furnace door 2 is confirmed to be closed, the vacuum pump 3 is turned on to evacuate the furnace. After the vacuum inside the heating furnace 1 is evacuated to a suitable range, the resistance wire 4 is turned on. The controller 5 controls the temperature inside the heating furnace 1 after being heated by the resistance wire 4, so that the temperature inside the heating furnace 1 is stabilized within a suitable range. When the heating stops, the temperature is lowered. Because the heating furnace 1 is maintained in a vacuum state, the metal material will not absorb hydrogen due to cooling, thus preventing a decrease in the dehydrogenation effect and achieving the purpose of dehydrogenation.

[0047] The exhaust pipe 64 includes a thin pipe 641 connected to the heating furnace 1. One end of the thin pipe 641 away from the heating furnace 1 is connected to a first square pipe 642. The other end of the first square pipe 642 away from the thin pipe 641 is connected to a second square pipe 643. A partition plate 652 is fixedly connected to the thin pipe 641 and the first square pipe 642. The top of the partition plate 653 is slidably connected to the top inner side of the first square pipe 642. The height of the first square pipe 642 is H1, and the height of the second square pipe 643 is H2, satisfying the following relationship:

[0048] H1 < H2, the height of the second square tube 643 is greater than that of the first square tube 642. When the folding plate 653 is located inside the first square tube 642 at its starting point, the folding plate 653 completely blocks the area of ​​the first square tube 642 above the partition plate 652. After the low-temperature gas inside the heating furnace 1 enters the exhaust pipe 64, it can only pass through the perforations and vents to enter the first storage box 651. As the amount of gas entering the exhaust pipe 64 from the heating furnace 1 gradually increases, the gas pressure inside the exhaust pipe 64 and the first storage box 651 gradually increases. Due to the pressure difference on both sides, the baffle plate 653 is pushed towards the second square tube 643 until the end of the baffle plate 653 away from the heating furnace 1 enters the interior of the second square tube 643. The baffle plate 653 cannot completely block the second square tube 643. The steam that subsequently enters the exhaust pipe 64 passes through the gap between the baffle plate 653 and the second square tube 643 and then moves towards the heating tank 62. This can delay the collection of the gas discharged from the heating furnace 1, reduce the recovery of the originally low-temperature air inside the heating furnace 1, and increase the proportion of steam in the recovered gas.

[0049] A sliding plate 9 is slidably connected between the two sides of the inner wall of the second square tube 643. A push rod 10 for pushing the folding plate 653 is fixedly connected to the side of the sliding plate 9 near the partition plate 652. A first motor 11 is fixedly connected to the bottom inner side of the second square tube 643. The output end of the first motor 11 is provided with a first threaded rod 12 that moves through the sliding plate 9. The area where the perforation on the folding plate 653 overlaps with the vent on the partition plate 652 is designated as area A. The area where the end of the folding plate 653 away from the heating furnace 1 enters the second square tube 643 is designated as area C. The area between area A and area C is designated as area B. When the folding plate 653 is in area A, all the gas entering the exhaust pipe 64 from the heating furnace 1 enters the first storage box 651 until the folding plate 653 is pushed through area B and enters area C due to the pressure difference on both sides. At this time, the gas entering the exhaust pipe 64 from the heating furnace 1 enters the second square pipe 643 through the first square pipe 642. After the metal dehydrogenation inside the heating furnace 1 is completed, the first motor 11 starts, drives the first threaded rod 12 to rotate, and then drives the slide plate 9 and push rod 10 to move. The push rod 10 pushes the folding plate 653 back to the starting point, so that the heating furnace 1 can reheat the metal for dehydrogenation.

[0050] Example 2

[0051] like Figures 1-5 As shown, this embodiment is basically the same as embodiment 1. Preferably, a push plate 13 is slidably connected between the two sides of the inner wall of the first storage box 651. A second threaded rod 14 is provided on one side of the push plate 13, with one end extending movably to the outside of the first storage box 651. A handle 15 is fixedly connected to the end of the second threaded rod 14 away from the first storage box 651. At the beginning, rotating the handle 15 drives the second threaded rod 14 to rotate, thereby pushing the push plate 13 to the position closest to the heating furnace 1. The push plate 13 blocks the connection port with the exhaust pipe 64 above, and the air inside the first storage box 651 is completely discharged until the heating tank 62 begins to discharge steam into the heating furnace 1. Then, rotating the handle 15 in the opposite direction drives the push plate 13 to move to a suitable position, so that the gas inside the exhaust pipe 64 can enter the first storage box 651. Since the heating furnace 1 originally has a low temperature, When collecting steam discharged from the heating furnace 1, a certain delay time is required. When the space inside the heating furnace 1 is large and the delay time needs to be increased, the operator turns the handle 15, which in turn drives the second threaded rod 14 to rotate, thereby moving the push plate 13 away from the heating furnace 1. This allows more air to enter the first collection box 651 through the exhaust pipe 64, and more of the cooler air discharged from the heating furnace 1 can enter the first collection box 651. This process continues until the metal inside the heating furnace 1 has been heated and dehydrogenated. After the furnace door 2 is opened, the handle 15 is turned again to discharge the gas from the first collection box 651. The delay time for collecting steam can be adjusted as needed to meet the requirements of heating furnaces of different volumes to recover the steam discharged from their interiors, maximizing the proportion of steam in the recovered gas and thus improving the heat utilization efficiency.

[0052] A support rod 16 is fixedly connected to the side of the heating tank 62 near the heating furnace 1. A second storage box 17, which communicates with the second square tube 643, is fixedly connected to the top of the support rod 16. A second valve 18 is connected between the second storage box 17 and the heating tank 62. Initially, the second valve 18 is closed, and steam is discharged from the inside of the heating furnace 1 and accumulates in the exhaust pipe 64 and the second storage box 17. The air pressure in the exhaust pipe 64 and the second storage box 17 gradually increases until the heating tank 62 no longer supplies steam into the heating furnace 1, and the heating of the heating tank 62 is stopped. The first valve 63 is closed, and the temperature inside the heating tank 62 gradually decreases. Then the second valve 18 is opened, and the steam inside the second storage box 17 is forced into the heating tank 62 due to the greater air pressure. This reduces the backflow of steam from the heating tank 62 into the exhaust pipe 64 and increases the amount of steam discharged from the heating furnace 1 that is recovered in the heating tank 62.

[0053] Example 3

[0054] like Figures 1-7As shown, this embodiment is basically the same as embodiment 1. Preferably, a support frame 19 is fixedly connected to the side of the heating furnace 1 near the furnace door 2. A winding frame 20 is fixedly connected to the top of the support frame 19. A winding rod is rotatably connected between the two sides of the winding frame 20. A second motor 21 for driving the winding rod to rotate is fixedly connected to one side of the winding frame 20. A traction rope 22 is fixedly connected between the top of the furnace door 2 and the winding rod. A limiting post 23 for guiding the movement path of the traction rope 22 is fixedly connected to the top of the support frame 19. When the furnace door 2 needs to be opened, the second motor 21 drives the winding rod to rotate, and then pulls the furnace door 2 up through the traction rope 22 until the furnace door 2 is raised to a suitable height. After the furnace door 2 is raised, the second motor 21 stops working. When the furnace door 2 needs to be closed, the second motor 21 rotates in the opposite direction until the furnace door 2 is closed. This allows for convenient control of the opening and closing of the furnace door 2, making it convenient to put metal materials into the heating furnace 1 and take them out of the heating furnace 1.

[0055] Example 4

[0056] like Figures 1-9As shown, this embodiment is basically the same as embodiment 1. Preferably, a transverse groove penetrating the heating platform 8 is provided on the side of the heating platform 8 near the exhaust pipe 64. A water storage tank is provided at the bottom of the inner side of the transverse groove. A groove is provided inside the heating platform 8. A connecting pipe 24 is provided on the side of the heating platform 8 near the exhaust pipe 64, with one end extending into the groove and the water storage tank. A transverse plate 25 corresponding to the partition plate 652 is fixedly connected between the two sides of the inner wall of the connecting pipe 24. A drain groove communicating with the transverse groove is provided on the top of the heating platform 8. A draining groove for discharging water into the furnace 1 is fixedly connected on one side. When the blower that introduces air into the first storage box 651 pushes the heating platform 8 into the heating furnace 1, it pushes the heating platform 8 to the deepest part of the heating furnace 1, aligning the connecting pipe 24 with the exhaust pipe 64. Steam inside the heating furnace 1 enters the exhaust pipe 64 from the area above the horizontal plate 25 inside the connecting pipe 24, and then exits from inside the heating furnace 1. While the steam inside the heating furnace preheats the metal material, the steam condenses into water and falls through the drain trough into the water storage tank below. When the connection between the heating furnace 1 and the heating tank 62 is completely severed, the control push rod 1... 0. Push the folding plate 653 to area B, start the blower to continuously introduce cool air into the first storage box 651. The air enters the groove of the heating platform 8 to cool the heating platform 8. The steam inside the heating furnace 1 comes into contact with the heating platform 8 and further condenses until the gas pressure inside the heating furnace 1 no longer changes. At this time, turn off the blower. This can increase the utilization of steam condensation to form a negative pressure inside the heating furnace 1, reducing the power consumption of the vacuum pump 3 to evacuate the heating furnace 1. When the metal material inside the heating furnace 1 has completed dehydrogenation and the furnace door 2 needs to be opened, the resistance... Both wire 4 and vacuum pump 3 have stopped working. At this time, the blower starts working. The control push rod 10 pushes the baffle 653 to move to the first area. The air blown out by the blower enters the heating furnace 1 directly through the exhaust pipe 64 to cool the heating furnace 1 and the metal inside. Since the gas after the metal dehydrogenation has been drawn away by vacuum pump 3, the air blown into the heating furnace 1 by the blower will not cause the metal to absorb hydrogen again. This allows the metal and heating furnace 1 to cool down quickly, preventing the internal heat of the heating furnace 1 from causing injury to the staff when it is turned on. At the same time, it reduces the waiting time required for the metal to cool naturally.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An apparatus for dehydrogenation of metallic materials, comprising a heating furnace (1), wherein a furnace door (2) is slidably connected to the opening of the heating furnace (1), characterized in that, Multiple round rods (7) are fixedly connected to the bottom inner side of the heating furnace (1), and a heating platform (8) is slidably connected to the top of the round rods (7). A ventilation assembly (6) for introducing hot steam into the heating furnace (1) is installed on the side of the heating furnace (1) away from the furnace door (2). The ventilation assembly (6) includes an air inlet pipe (61) connected to the heating furnace (1). The end of the air inlet pipe (61) away from the heating furnace (1) is connected to a heating tank (62). A heating rod with one end extending into the heating tank (62) is provided on one side. The end of the air inlet pipe (61) near the heating furnace (1) is connected to a first valve (63). An exhaust pipe (64) is connected between the heating furnace (1) and the heating tank (62). A delayed recovery assembly (65) is provided at the end of the exhaust pipe (64) near the heating furnace (1). The delayed recovery component (65) includes a first storage box (651) fixedly connected to the heating furnace (1). A longitudinal pipe is connected between the top of the first storage box (651) and the exhaust pipe (64). A partition plate (652) for dividing the exhaust pipe (64) into upper and lower parts is fixedly connected to one end of the exhaust pipe (64) near the heating furnace (1). A vent is provided on the top of the partition plate (652). A folding plate (653) is slidably connected to the top of the partition plate (652). A perforation corresponding to the vent is provided on the top of the folding plate (653). The exhaust pipe (64) includes a thin pipe (641) connected to the heating furnace (1). The end of the thin pipe (641) away from the heating furnace (1) is connected to a first square pipe (642). The end of the first square pipe (642) away from the thin pipe (641) is connected to a second square pipe (643). A partition plate (652) is fixedly connected to the thin pipe (641) and the first square pipe (642). The top of the folding plate (653) is slidably connected to the top inner side of the first square pipe (642). The height of the first square pipe (642) is H1, and the height of the second square pipe (643) is H2, satisfying the following relationship: H1 < H2.

2. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, The top of the heating furnace (1) is fixedly connected to a vacuum pump (3) for evacuating the inside of the heating furnace (1). A resistance wire (4) is installed on the inner wall of the heating furnace (1) away from the furnace door (2). A controller (5) for controlling the vacuum pump (3) and the resistance wire (4) is installed on the side of the heating furnace (1) away from the furnace door (2). The vacuum pump (3) and the resistance wire (4) are electrically connected to the controller (5) through wires.

3. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, A sliding plate (9) is slidably connected between the two sides of the inner wall of the second square tube (643), and a push rod (10) for pushing the folding plate (653) is fixedly connected to the side of the sliding plate (9) near the partition plate (652).

4. The apparatus for dehydrogenation of metallic materials according to claim 3, characterized in that, The bottom inner side of the second square tube (643) is fixedly connected to a first motor (11), and the output end of the first motor (11) is provided with a first threaded rod (12) that moves through the slide plate (9).

5. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, A push plate (13) is slidably connected between the two sides of the inner wall of the first storage box (651). A second threaded rod (14) is provided on one side of the push plate (13) with one end extending to the outside of the first storage box (651). A handle (15) is fixedly connected to the end of the second threaded rod (14) away from the first storage box (651).

6. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, The heating tank (62) is fixedly connected to a support rod (16) on the side near the heating furnace (1). The top of the support rod (16) is fixedly connected to a second storage box (17) that communicates with the second square tube (643). A second valve (18) communicates between the second storage box (17) and the heating tank (62).

7. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, The heating furnace (1) is fixedly connected to a support frame (19) on the side near the furnace door (2). A winding frame (20) is fixedly connected to the top of the support frame (19). A winding rod is rotatably connected between the two sides of the winding frame (20). A second motor (21) for driving the winding rod to rotate is fixedly connected to one side of the winding frame (20). A traction rope (22) is fixedly connected between the top of the furnace door (2) and the winding rod. A limiting post (23) for guiding the movement path of the traction rope (22) is fixedly connected to the top of the support frame (19).

8. The apparatus for dehydrogenation of metallic materials according to claim 1, characterized in that, The heating platform (8) has a transverse groove on the side near the exhaust pipe (64) that runs through it. A water storage tank is provided at the bottom of the inner side of the transverse groove. A groove is provided inside the heating platform (8). A connecting pipe (24) is provided on the side of the heating platform (8) near the exhaust pipe (64) that extends into the groove and the water storage tank. A transverse plate (25) corresponding to the partition plate (652) is fixedly connected between the two sides of the inner wall of the connecting pipe (24). A drain groove communicating with the transverse groove is provided on the top of the heating platform (8). A blower for introducing air into the first storage box (651) is fixedly connected to one side of the heating furnace (1).

9. A method of using a metal material dehydrogenation device as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Add materials, open the furnace door (2), move the heating platform (8) to the outside of the heating furnace (1), place the metal materials that need to be dehydrogenated on the heating platform (8), then push the heating platform (8) into the heating furnace (1), and finally close the furnace door (2). Step 2, preheating: The hot steam generated inside the heating tank (62) is introduced into the heating furnace (1). The hot steam pushes the air with a lower temperature inside the heating furnace (1) to the outside of the heating furnace (1). The hot steam preheats the metal material with a lower temperature on the heating platform (8). Step 3, waste heat collection: First, the low-temperature air discharged from the heating furnace (1) is discharged away. Then, the hot steam discharged from the heating furnace (1) is collected and discharged back into the heating tank (62). After the heating tank (62) heats the air inside, it is discharged back into the heating furnace (1). Finally, the valve between the heating furnace (1) and the heating tank (62) is closed. The hot steam that comes into contact with the metal material condenses into water, creating a negative pressure environment inside the heating furnace (1). Step 4, vacuum heating: evacuate the inside of the heating furnace (1) to maintain the vacuum environment inside the heating furnace (1), and then heat the inside of the heating furnace (1); Step 5: Remove the material, stop evacuating and heating the inside of the heating furnace (1), open the furnace door (2), wait for the temperature inside the heating furnace (1) to cool down, then move the heating platform (8) to the outside of the heating furnace (1) and remove the metal material on the heating platform (8).

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