An experimental hydrogen reduction furnace

Abstract

This utility model discloses an experimental hydrogen reduction furnace, including a furnace body. A mechanism box is located at the bottom of the furnace body, and a sliding component is located on one side of the top of the mechanism box. The furnace body is slidably connected to the mechanism box via the sliding component. A base is located on the other side of the top of the mechanism box, and a vacuum pumping component, a pressure relief component, and a gas inlet component are respectively provided on the base and connected to the interior of the base. By setting the vacuum pumping component, pressure relief component, and gas inlet component on the base, this utility model can automatically and precisely control the gas environment inside the sintering tube after it is connected to the base. The vacuum pumping component quickly creates a vacuum environment, providing a pure space for the hydrogen reduction reaction. The pressure relief component promptly discharges excess gas, preventing the sintering tube from rupturing and ensuring experimental safety. The gas inlet component has several independent second gas inlet pipes that can flexibly introduce various reaction gases into the sintering tube to meet different experimental conditions and improve the versatility of the equipment.

Description

Technical Field

[0001] This application relates to the field of reduction furnace equipment technology, and more specifically, to an experimental hydrogen reduction furnace. Background Technology

[0002] Experimental hydrogen reduction furnaces are widely used experimental equipment in fields such as materials science, chemical engineering, and metal smelting. They are mainly used to carry out reduction reactions on various materials in a hydrogen atmosphere, which helps to synthesize new materials, purify substances, and explore the chemical properties of substances.

[0003] Existing hydrogen reduction furnaces are not highly automated, and most adopt a structure with a fixed heating furnace body mechanically connected to a detachable material loading component. This makes the loading and unloading of materials extremely inconvenient. The control of the amount of gas filling the internal environment of the material loading component in existing hydrogen reduction furnaces is mostly manually adjusted, making it difficult to achieve efficient vacuuming and precise proportioning of various reaction gases. This cannot meet the stringent requirements of current complex and precise experiments for the reaction atmosphere.

[0004] Therefore, we propose an experimental hydrogen reduction furnace to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide an experimental hydrogen reduction furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an experimental hydrogen reduction furnace, comprising a furnace body, a mechanism box at the bottom of the furnace body, a sliding component on one side of the top of the mechanism box, the furnace body being slidably connected to the mechanism box via the sliding component, a base on the other side of the top of the mechanism box, a vacuum pumping component, a pressure relief component, and a gas inlet component respectively provided on the base and communicating with the interior of the base, a bearing plate extending toward one end of the furnace body inside the base, and an installation groove surrounding the outer periphery of the bearing plate on the end face of the base, a detachable sintering tube being sealed and connected in the installation groove.

[0007] Preferably, the furnace body has a hollow furnace chamber, and multiple sets of molybdenum heating components are arranged around the inner wall of the furnace chamber. The furnace body is movably covered outside the support plate by a sliding component. The sintering tube is connected to the base and is arranged between the support plate and the molybdenum heating components.

[0008] Preferably, the inner bottom wall of the mounting groove is deepened with a threaded hole, and the corresponding end of the sintering tube is provided with a flange that engages with the mounting groove. The flange end face is provided with a through hole, and a bolt is provided in the through hole. One end of the bolt passes through the through hole and engages with the threaded hole through the thread. A sealing assembly is provided between the mounting groove and the flange of the sintering tube.

[0009] Preferably, the sliding assembly includes a connecting base fixedly connected to the bottom of the furnace body, and a connecting sleeve connected to the other end of the connecting base. The connecting sleeve is slidably fitted onto the transmission screw through the mechanism box. The transmission screw is fixed to the top surface inside the mechanism box and rotatably connected to the mechanism box. One end of the transmission screw is provided with a first bevel gear. The mechanism box is also provided with a drive motor. The output end of the drive motor is fixedly connected with a second bevel gear. The first bevel gear and the second bevel gear are meshed together. The top of the mechanism box is also provided with a guide rail parallel to the setting direction of the transmission screw. A slider is slidably connected on the guide rail, and the top surface of the slider is fixedly connected to the connecting base.

[0010] Preferably, the vacuum assembly includes a vacuum port with one end connected to the base, a vacuum tube connected to the other end of the vacuum port, and a vacuum pump connected to the other end of the vacuum tube. The vacuum pump is installed inside the mechanism housing.

[0011] Preferably, the pressure relief assembly includes a pressure relief port disposed on the base and communicating with the interior of the base at one end, a pressure relief pipe connected to the other end of the pressure relief port, a gas storage cylinder connected to the other end of the pressure relief pipe, a fixing frame connected to the outside of the gas storage cylinder, the gas storage cylinder being installed on the outside of the mechanism box via the fixing frame, and the gas storage cylinder and the fixing frame being detachably connected.

[0012] Preferably, a first on / off control valve is installed on the pressure relief port.

[0013] Preferably, the air intake assembly includes a first air intake pipe connected to the base, and a plurality of independent second air intake pipes are provided at the other end of the first air intake pipe, the second air intake pipes being connected to the first air intake pipe.

[0014] Preferably, the second intake pipe includes a main body with one end connected to the first intake pipe, and the other end of the main body is provided with a connection port connected to the main body. A second on / off control valve is provided between the main body and the connection port.

[0015] Preferably, a pressure monitoring component is installed at the top of the base.

[0016] The experimental hydrogen reduction furnace provided by this utility model has the following advantages compared with the prior art:

[0017] This invention, by setting a vacuum pumping component, a pressure relief component, and a gas inlet component on the base, can automatically and precisely control the gas environment inside the sintering tube after it is connected to the base. The vacuum pumping component quickly creates a vacuum environment, providing a pure space for the hydrogen reduction reaction. The pressure relief component promptly discharges excess gas to prevent the sintering tube from rupturing and ensure the safety of the experiment. The gas inlet component has several independent second gas inlet pipes that can flexibly introduce various reaction gases into the sintering tube to meet the needs of different experimental conditions and improve the versatility of the equipment.

[0018] This invention achieves a movable connection between the furnace body and the sintering tube by setting a sliding component between the furnace body and the mechanism box, facilitating switching between material loading and reaction operations. Control valves are installed in the pressure relief component and the gas inlet component to flexibly control the on / off connection between these components and the sintering tube. This allows for automatic and precise control of the gas environment within the sintering tube, meeting the requirements for gas types and ratios under different experimental conditions and improving the automation level of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the present invention (second perspective).

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a front structural sectional view of the present invention;

[0023] Figure 5 This is a partial cross-sectional schematic diagram of the three-dimensional structure of the connection relationship between the furnace body, sintering tube, and base of this utility model.

[0024] In the diagram: 1. Furnace body; 11. Furnace chamber; 12. Molybdenum heating assembly; 2. Mechanism box; 3. Vacuum assembly; 31. Vacuum port; 32. Vacuum tube; 33. Pump; 4. Pressure relief assembly; 41. Pressure relief port; 42. Pressure relief pipe; 43. Gas storage cylinder; 5. Base; 51. Pressure monitoring assembly; 52. Mounting groove; 53. Support plate; 54. Sintering tube; 541. Flange; 6. Inlet assembly; 61. First inlet pipe; 62. Second inlet pipe; 621. Second on / off control valve; 622. Main body; 623. Connection port; 7. Sliding assembly; 71. Connecting base; 72. Connecting sleeve; 73. Guide rail; 74. Transmission screw; 741. First bevel gear; 75. Drive motor; 751. Second bevel gear. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] In addition, the term "multiple" should mean two or more.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0031] like Figures 1 to 5As shown, an experimental hydrogen reduction furnace includes a furnace body 1. A mechanism box 2 is located at the bottom of the furnace body 1. A sliding assembly 7 is located on one side of the top of the mechanism box 2. The furnace body 1 is slidably connected to the mechanism box 2 via the sliding assembly 7. A base 5 is located on the other side of the top of the mechanism box 2. A vacuum assembly 3, a pressure relief assembly 4, and a gas inlet assembly 6, all connected to the interior of the base 5, are respectively provided on the base 5. A support plate 53 extending towards one end of the furnace body 1 is located inside the base 5. An installation groove 52 is provided on the end face of the base 5, surrounding the outer periphery of the support plate 53. A detachable sintering tube 54 is sealed and connected in the installation groove 52. In use, the base 5 is used to fix the support plate 54. Material is placed on plate 53. A sintering tube 54 is installed on the base 5 to seal the support plate 53. The base 5 is covered by the furnace body 1 to heat the material. A sliding component 7 is used to realize the movable connection between the furnace body 1 and the support plate 53. The vacuum component 3, pressure relief component 4 and air intake component 6 on the base 5 are used to treat the gas in the sealed environment after the sintering tube 54 is sealed. The air intake component 6 introduces gas into the furnace body 1 through the first air intake pipe 61 and the second air intake pipe 62. The pressure monitoring component 51 at the top of the base 5 is used to monitor the pressure inside the furnace body 1.

[0032] Furthermore, the furnace body 1 has a hollow furnace chamber 11 inside. Multiple sets of molybdenum heating components 12 are arranged around the inner wall of the furnace chamber 11. The furnace body 1 is movably covered outside the support plate 53 by a sliding component 7. The sintering tube 54 is connected to the base 5 and is arranged between the support plate 53 and the molybdenum heating components 12. In use, the furnace chamber 11 inside the furnace body 1 is a heating reaction space. The multiple sets of molybdenum heating components 12 are used to heat the materials in the furnace chamber 11. During heating, the furnace body 1 is moved by the sliding component 7 and moves towards the support plate 53 and is covered outside the support plate 53. The sintering tube 54 is arranged between the support plate 53 and the molybdenum heating components 12 to make the heat evenly distributed.

[0033] Furthermore, the inner bottom wall of the mounting groove 52 is deepened with threaded holes, and a flange 541 is provided on one end of the sintering tube 54 to engage with the mounting groove 52. A through hole is provided on the end face of the flange 541, and a bolt is provided in the through hole. One end of the bolt passes through the through hole and is connected to the threaded hole through the thread. A sealing assembly is provided between the mounting groove 52 and the flange 541 of the sintering tube 54. The bolt is used to connect the sintering tube 54 to the mounting groove 52 of the base 5 through the flange 541 of the sintering tube 54. The sealing assembly ensures the airtightness of the connection between the sintering tube 54 and the base 5.

[0034] Furthermore, the sliding assembly 7 includes a connecting base 71 fixedly connected to the bottom of the furnace body 1. The other end of the connecting base 71 is connected to a connecting sleeve 72. The connecting sleeve 72 passes through the mechanism box 2 and is slidably fitted onto the transmission screw 74. The transmission screw 74 is fixed to the top surface inside the mechanism box 2 and is rotatably connected to the mechanism box 2. One end of the transmission screw 74 is provided with a first bevel gear 741. The mechanism box 2 is also provided with a drive motor 75. The output end of the drive motor 75 is fixedly connected to a second bevel gear 751. The first bevel gear 741 and the second bevel gear 751 are meshed. The top of the mechanism box 2 is also provided with a guide rail 73 parallel to the direction of the transmission screw 74. A slider is slidably connected to the guide rail 73. The top surface of the slider is fixedly connected to the connecting base 71. In use, the sliding control of the furnace body 1 relative to the mechanism box 2 is achieved through the coordinated action of the connecting sleeve 72, the transmission screw 74, the first bevel gear 741, the drive motor 75, the second bevel gear 751, the guide rail 73, and the slider.

[0035] Furthermore, the vacuum assembly 3 includes a vacuum port 31 connected to the base 5 at one end, a vacuum tube 32 connected to the other end of the vacuum port 31, and a vacuum pump 33 connected to the other end of the vacuum tube 32. The vacuum pump 33 is installed inside the mechanism box 2. In use, the sintering tube 54 is sealed to the base 5, and the vacuum assembly 3 performs vacuuming inside the sintering tube 54 through the vacuum port 31, the vacuum tube 32, and the vacuum pump 33.

[0036] Furthermore, the pressure relief assembly 4 includes a pressure relief port 41 disposed on the base 5 and connected at one end to the interior of the base 5. The other end of the pressure relief port 41 is connected to a pressure relief pipe 42, and the other end of the pressure relief pipe 42 is connected to a gas storage cylinder 43. A fixing frame is connected to the outside of the gas storage cylinder 43. The gas storage cylinder 43 is installed on the outside of the mechanism box 2 through the fixing frame. The gas storage cylinder 43 and the fixing frame are detachably connected. During use, during the heating process, the internal pressure of the sintering tube 54 gradually increases. In order to prevent the sintering tube 54 from rupturing, the gas generated by the reduction reaction of the venting material is vented through the pressure relief port 41. The gas enters the gas storage cylinder 43 through the pressure relief pipe 42 for storage, avoiding the direct emission of harmful products.

[0037] Furthermore, a first on / off control valve is installed on the pressure relief port 41. In use, the first on / off control valve is a solenoid valve, which is used to release pressure by pre-setting a pressure relief threshold. When the internal pressure of the sintering tube 54 exceeds the set threshold during the reaction process, the first on / off control valve opens to release pressure. When the pressure value is less than the threshold, the first on / off control valve closes, so that the sintering tube 54 has good airtightness during the reaction process.

[0038] Furthermore, the air intake assembly 6 includes a first air intake pipe 61 connected to the base 5. The other end of the first air intake pipe 61 is provided with a plurality of independent second air intake pipes 62. The second air intake pipes 62 are connected to the first air intake pipe 61. In use, the plurality of independent second air intake pipes 62 can simultaneously introduce different reaction gases required for the reduction reaction into the sintering tube 54.

[0039] Furthermore, the second air inlet pipe 62 includes a main pipe body 622 with one end connected to the first air inlet pipe 61, and a connection port 623 connected to the main pipe body 622 at the other end. A second on / off control valve 621 is provided between the main pipe body 622 and the connection port 623. The connection port 623 is used to connect to the gas supply equipment. The second on / off control valve 621 is preferably a solenoid valve, which is used to independently control the on / off of the corresponding second air inlet pipe 62, thereby flexibly controlling the gas content introduced into the sintering pipe 54.

[0040] Furthermore, a pressure monitoring component 51 is installed at the top of the base 5 to monitor the internal pressure value in the sintering tube 54 in real time.

[0041] The working principle of this utility model is as follows: First, when a hydrogen reduction reaction is required on the material, the furnace body 1 is moved to a position away from the base 5 by the sliding component 7, separating the base 5 from the sintering tube 54 and exposing the support plate 53 for loading the material. After the material is loaded, the sintering tube 54 is installed in the mounting groove 52 of the base 5, making the base 5 and the sintering tube 54 sealed together. The vacuum pump 33 in the vacuum component 3 is started, and the air inside the sintering tube 54 is extracted through the vacuum port 31 to form a vacuum environment to ensure the purity of the subsequent hydrogen reduction reaction. Then, the second on / off control valve 621 in the air inlet component 6 is opened, and hydrogen and other gases required for the reduction reaction are introduced into the sintering tube 54 through the first air inlet pipe 61 and several second air inlet pipes 62. After the gas is filled, the furnace body 1 is controlled by the sliding component 7 to slide along the guide rail 73 closer to the base 54. The base 5 is placed over the sintering tube 54. After the furnace body 1 moves to completely cover the sintering tube 54, the molybdenum heating component 12 installed in the furnace chamber 11 starts to work, heating the sintering tube 54 so that the hydrogen and materials inside the sintering tube 54 react. The sintering tube 54 has high thermal conductivity, which makes the heat inside it evenly distributed, ensuring that the materials inside are heated evenly, thereby catalyzing and promoting the reduction reaction of hydrogen on the materials. During the reaction, the pressure monitoring component 51 monitors the pressure inside the furnace body 1 in real time. When the pressure is too high, the first on / off control valve controls the opening of the pressure relief port 41, so that the gas inside the furnace body 1 enters the gas storage bottle 43 through the pressure relief pipe 42 for pressure relief, preventing the sintering tube 54 from rupturing due to excessive pressure. After the reaction is completed, the furnace body 1 is moved away by the sliding component 7. After cooling, the sintering tube 54 can be disassembled, and the materials generated after the reduction reaction can be taken out from the support plate 53.

[0042] The above-described specific embodiments are merely preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. An experimental hydrogen reduction furnace, comprising a furnace body (1), characterized in that: The furnace body (1) has a mechanism box (2) at the bottom. A sliding component (7) is provided on one side of the top of the mechanism box (2). The furnace body (1) is slidably connected to the mechanism box (2) through the sliding component (7). A base (5) is provided on the other side of the top of the mechanism box (2). A vacuum component (3), a pressure relief component (4), and an air intake component (6) are respectively provided on the base (5) and connected to the interior of the base (5). A bearing plate (53) extending toward one end of the furnace body (1) is provided inside the base (5). An installation groove (52) is provided around the outer periphery of the bearing plate (53) on the end face of the base (5). A detachable sintering tube (54) is sealed and connected in the installation groove (52).

2. The experimental hydrogen reduction furnace according to claim 1, characterized in that: The furnace body (1) has a hollow furnace chamber (11) inside. Multiple sets of molybdenum heating components (12) are arranged around the inner wall of the furnace chamber (11). The furnace body (1) is movably covered outside the support plate (53) by a sliding component (7). The sintering tube (54) is connected to the base (5) and is arranged between the support plate (53) and the molybdenum heating components (12).

3. The experimental hydrogen reduction furnace according to claim 2, characterized in that: The inner bottom wall of the mounting groove (52) is deepened with threaded holes. The sintered tube (54) is provided with a flange (541) that engages with the mounting groove (52) at one end. The flange (541) has a through hole on its end face and a bolt in the through hole. One end of the bolt passes through the through hole and engages with the threaded hole through the thread. A sealing assembly is provided between the mounting groove (52) and the flange (541) of the sintered tube (54).

4. The experimental hydrogen reduction furnace according to claim 3, characterized in that: The sliding assembly (7) includes a connecting base (71) fixedly connected to the bottom of the furnace body (1). The other end of the connecting base (71) is connected to a connecting sleeve (72). The connecting sleeve (72) passes through the mechanism box (2) and is slidably fitted onto the transmission screw (74). The transmission screw (74) is fixed on the top surface inside the mechanism box (2) and rotatably connected to the mechanism box (2). One end of the transmission screw (74) is provided with a first bevel gear (741). The mechanism box (2) is also provided with a drive motor (75). The output end of the drive motor (75) is fixedly connected to a second bevel gear (751). The first bevel gear (741) and the second bevel gear (751) are meshed. The top of the mechanism box (2) is also provided with a guide rail (73) parallel to the setting direction of the transmission screw (74). A slider is slidably connected on the guide rail (73). The top surface of the slider is fixedly connected to the connecting base (71).

5. The experimental hydrogen reduction furnace according to claim 4, characterized in that: The vacuum assembly (3) includes a vacuum port (31) connected to the base (5) at one end, a vacuum tube (32) connected to the other end of the vacuum port (31), and a vacuum pump (33) connected to the other end of the vacuum tube (32). The vacuum pump (33) is installed inside the mechanism box (2).

6. The experimental hydrogen reduction furnace according to claim 5, characterized in that: The pressure relief assembly (4) includes a pressure relief port (41) disposed on the base (5) and one end of which is connected to the interior of the base (5). The other end of the pressure relief port (41) is connected to a pressure relief pipe (42). The other end of the pressure relief pipe (42) is connected to a gas storage cylinder (43). A fixing frame is connected to the outside of the gas storage cylinder (43). The gas storage cylinder (43) is installed on the outside of the mechanism box (2) through the fixing frame. The gas storage cylinder (43) and the fixing frame are detachably connected.

7. The experimental hydrogen reduction furnace according to claim 6, characterized in that: A first on / off control valve is installed on the pressure relief port (41).

8. The experimental hydrogen reduction furnace according to claim 7, characterized in that: The air intake assembly (6) includes a first air intake pipe (61) connected to the base (5), and a plurality of independent second air intake pipes (62) are provided at the other end of the first air intake pipe (61). The second air intake pipes (62) are connected to the first air intake pipe (61).

9. The experimental hydrogen reduction furnace according to claim 8, characterized in that: The second intake pipe (62) includes a main body (622) that is connected to the first intake pipe (61) at one end, and a connection port (623) that is connected to the main body (622) at the other end. A second on / off control valve (621) is provided between the main body (622) and the connection port (623).

10. An experimental hydrogen reduction furnace according to claim 9, characterized in that: A pressure monitoring component (51) is installed at the top of the base (5).

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