High-temperature roasting device for hydrogen production by methanol low-temperature aqueous phase reforming

Abstract

The utility model belongs to the technical field of methanol hydrogen production, and particularly relates to a high-temperature roasting device for methanol low-temperature water-phase reforming hydrogen production. Comprising a high-temperature roasting box and a box cover fixedly arranged on the high-temperature roasting box, a feeding port is formed in the box cover, a sealing cover is rotationally arranged in the feeding port, and the high-temperature roasting box is used for roasting hydrogen production solids at high temperature. Through the arrangement of the servo motor, the rotating disc, the connecting rod, the screening box and the cutting screening plate, hydrogen production solids fed into the high-temperature roasting box can be screened according to the diameter size, so that the diameters of the hydrogen production solids entering the high-temperature roasting box are small, and the high-temperature roasting time can be shortened due to the small diameters of the hydrogen production solids; in this way, the situation that the high-temperature roasting quality of the hydrogen production solid is affected due to the fact that the high-temperature roasting time of the hydrogen production solid is long is reduced, the hydrogen production solid penetrating through the screening box can be cut under the action of the cutting screen plate, the length of the hydrogen production solid can be shortened, and therefore the size of the hydrogen production solid is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of methanol hydrogen production, in particular to a high-temperature roasting device used for low-temperature aqueous phase reforming of methanol to produce hydrogen. Background Art

[0002] As a clean secondary energy source, hydrogen energy has great development potential and has attracted widespread attention from countries around the world. At present, hydrogen fuel cells are one of the new technology platforms for the efficient and clean use of hydrogen energy. However, to fully utilize hydrogen energy, a series of difficulties need to be overcome, including hydrogen production and storage. However, if the existing energy transportation facilities can be used to deliver hydrogen production raw materials to the terminal and hydrogen production can be carried out in situ, the disadvantages of hydrogen storage can be avoided to a large extent. Among them, the use of liquid fuels such as methanol, ethanol, and gasoline through steam reforming to produce hydrogen for fuel cell power generation is considered to be one of the most feasible ways. In comparison, methanol has become the first choice for hydrogen production raw materials due to its advantages such as low cost, sulfur-free, high energy density, and low reaction temperature.

[0003] In recent years, transition metal carbides have become a research hotspot due to their unique electronic structures and excellent catalytic properties. Molybdenum carbide-based catalysts, in particular, have garnered widespread attention due to their exceptionally high catalytic activity in methanol reforming to produce hydrogen. The hydrogen production process involves dispersing a platinum metal compound, a molybdenum metal compound, and mesoporous zinc oxide in water to obtain a mixed solution; heating and stirring the mixed solution to evaporate the water, followed by vacuum drying and calcination to obtain a solid product; grinding, tableting, and particle screening the solid product; and reducing the solid product after particle screening using one or a combination of H2, CO, 5% H2 / Ar, and 5% CO / Ar.

[0004] The hydrogen-producing mixed liquid after water removal in the above hydrogen production step becomes a hydrogen-producing solid. The hydrogen-producing solid is vacuum dried and roasted to obtain a solid product. A high-temperature roasting device is required for roasting the hydrogen-producing solid. The commonly used high-temperature roasting device is to directly put the hydrogen-producing solid into it for roasting. Although this is simple and convenient, the hydrogen-producing solids put into the high-temperature roasting device are of different sizes. In order to completely roast the hydrogen-producing solids of different sizes, the roasting time of the hydrogen-producing solid needs to be extended. If the roasting time of the hydrogen-producing solid is too long, it is easy to cause cracking, thereby affecting the solid product obtained by roasting the hydrogen-producing solid.

[0005] Therefore, we proposed a high-temperature roasting device for low-temperature aqueous phase reforming of methanol to produce hydrogen to solve the above problems. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies of the prior art, the present invention provides a high-temperature roasting device for producing hydrogen through low-temperature aqueous phase reforming of methanol, which solves the problems raised in the above-mentioned background technology.

[0008] (2) Technical solution

[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0010] A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol, comprising a high-temperature roasting box and a box cover fixedly mounted on the high-temperature roasting box, the box cover being provided with a feed port, a sealing cover being rotatably mounted within the feed port, the high-temperature roasting box being used for high-temperature roasting of solids for producing hydrogen, and the sealing cover being used for sealing the high-temperature roasting box;

[0011] A support frame is fixedly arranged on the box cover, a feed hopper is fixedly arranged on the support frame, a cutting screen plate is fixedly arranged in the feed hopper, limit plates are fixedly arranged on both sides of the upper end surface of the feed hopper, slide grooves are provided on the two limit plates, a screening box is arranged between the two limit plates, and a slider is fixedly arranged on the wall surface of the screening box opposite to the two limit plates, and the two sliders are respectively slidably arranged in the two slide grooves;

[0012] The servo motor is fixed on the feed hopper through a bracket to provide kinetic energy for the swing of the screening box. A turntable is fixed on the output end of the servo motor, and a connecting rod is rotatably provided on the turntable. The end of the connecting rod away from the turntable is rotatably connected to a slider on the screening box.

[0013] Furthermore, a scraper is rotatably provided in the high-temperature roasting box, the cross section of the scraper is in the shape of a U, and the scraper is attached to the inner wall surface of the high-temperature roasting box. A drive motor is fixedly provided on the lower end surface of the high-temperature roasting box, and the output end of the drive motor is connected to the scraper.

[0014] Furthermore, an opening is provided on the high-temperature roasting box, a sealing door is rotatably connected in the opening, the sealing door is adapted to the size of the opening, and a door handle is fixedly provided on the sealing door.

[0015] Furthermore, a reinforcement ring is fixedly provided on the high-temperature roasting box, and a plurality of the reinforcement rings are provided.

[0016] Furthermore, the box cover and the upper end surface of the high-temperature roasting box are both provided with a plurality of positioning holes, and the positions of the plurality of positioning holes on the box cover and the high-temperature roasting box correspond to each other in pairs.

[0017] Furthermore, a plurality of supporting legs are fixedly provided on the lower end surface of the high-temperature roasting box, and foot pads are fixedly provided on the bottom ends of the supporting legs.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol, which has the following beneficial effects:

[0020] The utility model can not only screen the diameter of the hydrogen-producing solid put into the high-temperature roasting box through the arrangement of the servo motor, the turntable, the connecting rod, the screening box and the cutting screen plate, so that the diameter of the hydrogen-producing solid entering the high-temperature roasting box is smaller, and the smaller diameter of the hydrogen-producing solid can shorten the high-temperature roasting time, thereby reducing the high-temperature roasting quality of the hydrogen-producing solid caused by the long high-temperature roasting time of the hydrogen-producing solid, but also the hydrogen-producing solid passing through the screening box can be cut under the action of the cutting screen plate, thereby shortening the length of the hydrogen-producing solid, thereby reducing the size of the hydrogen-producing solid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a bottom view of the support frame of the utility model;

[0023] Figure 3 This is a schematic diagram of the feed hopper structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the high-temperature roasting box structure of the utility model.

[0025] In the figure: 1. High-temperature roasting box; 2. Box cover; 3. Sealing cover; 4. Support frame; 5. Feed hopper; 6. Cutting screen plate; 7. Limit plate; 8. Slide; 9. Screening box; 10. Slider; 11. Servo motor; 12. Bracket; 120. Turntable; 13. Connecting rod; 14. Scraper; 15. Drive motor; 16. Sealing door; 17. Reinforcement ring; 18. Support foot; 19. Foot pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example

[0028] like Figure 1-4As shown, an embodiment of the present invention proposes a high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol, comprising a high-temperature roasting box 1 and a box cover 2 fixedly arranged on the high-temperature roasting box 1, wherein the box cover 2 is provided with a feed port, and a sealing cover 3 is rotatably arranged in the feed port. The high-temperature roasting box 1 is used for high-temperature roasting of hydrogen-producing solids, and the sealing cover 3 is used for sealing the high-temperature roasting box 1;

[0029] A support frame 4 is fixedly arranged on the box cover 2, and a feed hopper 5 is fixedly arranged on the support frame 4. A cutting screen plate 6 is fixedly arranged in the feed hopper 5, and limit plates 7 are fixedly arranged on both sides of the upper end surface of the feed hopper 5. A chute 8 is opened on the two limit plates 7, and a screening box 9 is arranged between the two limit plates 7. A slider 10 is fixedly arranged on the side wall of the screening box 9 opposite to the two limit plates 7, and the two sliders 10 are respectively slidably arranged in the two chute 8;

[0030] The servo motor 11 is fixedly mounted on the feed hopper 5 via a bracket 12 to provide kinetic energy for the swinging of the screening box 9. A turntable 120 is fixedly mounted on the output end of the servo motor 11. A connecting rod 13 is rotatably mounted on the turntable 120. The end of the connecting rod 13 away from the turntable 120 is rotatably connected to a slider 10 on the screening box 9.

[0031] Through the arrangement of the servo motor 11, the turntable 120, the connecting rod 13, the screening box 9, and the cutting screen plate 6, not only can the diameter of the hydrogen-producing solid put into the high-temperature roasting box 1 be screened, thereby making the diameter of the hydrogen-producing solid entering the high-temperature roasting box 1 smaller, and the smaller diameter of the hydrogen-producing solid can shorten the high-temperature roasting time, thereby reducing the high-temperature roasting quality of the hydrogen-producing solid caused by the long high-temperature roasting time of the hydrogen-producing solid, but also the hydrogen-producing solid passing through the screening box 9 can be cut under the action of the cutting screen plate 6, thereby shortening the length of the hydrogen-producing solid, thereby reducing the size of the hydrogen-producing solid.

[0032] A scraper 14 is rotatably mounted within the high-temperature roasting box 1. The scraper 14 has a U-shaped cross-section and is attached to the inner wall of the high-temperature roasting box 1. A drive motor 15 is fixedly mounted on the lower end of the high-temperature roasting box 1, and the output end of the drive motor 15 is connected to the scraper 14. The scraper 14 and drive motor 15 allow the inner wall of the high-temperature roasting box 1 to be cleaned, thereby preventing excessive roasting residue from adhering to the inner wall of the high-temperature roasting box 1 and reducing the roasting effect of the high-temperature roasting box 1 on the hydrogen-producing solid.

[0033] The high-temperature roasting box 1 has an opening, into which a sealed door 16 is rotatably connected. The sealed door 16 is sized to fit the opening and has a door handle fixed to it. A plurality of reinforcement rings 17 are fixed to the high-temperature roasting box 1. The opening and sealed door 16 facilitate cleaning and maintenance of the interior of the high-temperature roasting box 1, as well as the removal of processed materials. The reinforcement rings 17 serve to reinforce the high-temperature roasting box 1, preventing deformation.

[0034] The upper surfaces of both the lid 2 and the high-temperature roasting box 1 are provided with multiple positioning holes, each corresponding to the other. The lower surface of the high-temperature roasting box 1 is fixedly provided with multiple support legs 18, each with a foot pad 19 fixed at its bottom. The positioning holes are provided to securely connect the lid 2 to the high-temperature roasting box 1, and the foot pad 19 increases the contact area between the support legs 18 and the ground, thereby making the high-temperature roasting box 1 more stable during use.

[0035] Working principle of the utility model: when it is necessary to roast the hydrogen-producing solid at high temperature, the servo motor 11 is first started, and the start of the servo motor 11 drives the turntable 120 to rotate. The rotation of the turntable 120 pushes the screening box 9 to swing horizontally along the chute 8 through the connecting rod 13, and then the hydrogen-producing solid is put into the screening box 9. The screening box 9 flattens the hydrogen-producing solid in the screening box 9 during the swinging process for screening. When the sieve holes on the screening box 9 correspond to the sieve holes on the cutting sieve plate 6, the screening The hydrogen-producing solid on the box 9 passes through the screening box 9 and the cutting sieve plate 6 in turn and falls into the feed hopper 5. The feed hopper 5 transports the hydrogen-producing solid to the high-temperature roasting box 1 for roasting. If the hydrogen-producing solid passing through the screening box 9 is long, one end of the hydrogen-producing solid is inserted into the sieve hole on the cutting sieve plate 6 during the screening process, and the other end still stays in the sieve hole of the screening box 9. The sieve holes on the screening box 9 and the cutting sieve plate 6 are staggered. At this time, the hydrogen-producing solid between the screening box 9 and the cutting sieve plate 6 is cut into smaller pieces.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol, comprising a high-temperature roasting box (1) and a box cover (2) fixedly arranged on the high-temperature roasting box (1), characterized in that: The lid (2) is provided with a feed inlet, and a sealing cover (3) is rotatably arranged in the feed inlet. The high-temperature roasting box (1) is used for high-temperature roasting of hydrogen-producing solids, and the sealing cover (3) is used to seal the high-temperature roasting box (1). A support frame (4) is fixedly arranged on the lid (2). A feed hopper (5) is fixedly arranged on the support frame (4). A cutting sieve plate (6) is fixedly arranged in the feed hopper (5). Limiting plates (7) are fixedly arranged on both sides of the upper end surface of the feed hopper (5). Sliding grooves (8) are formed in both of the limiting plates (7). A screening box (9) is arranged between the two limiting plates (7). Sliders (10) are fixedly arranged on the side walls of the screening box (9) opposite to the two limiting plates (7). The two sliders (10) are respectively slidably arranged in the two sliding grooves (8). A servo motor (11) is fixedly arranged on the feed hopper (5) through a bracket (12) and provides kinetic energy for the swing of the screening box (9). The output end of the servo motor (11) is fixedly provided with a turntable (120). A connecting rod (13) is rotatably arranged on the turntable (120). The end of the connecting rod (13) far from the turntable (120) is rotatably connected to a slider (10) on the screening box (9).

2. A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol according to claim 1, characterized in that: A scraper (14) is rotatably arranged in the high-temperature roasting box (1). The cross section of the scraper (14) is U-shaped, and the scraper (14) is attached to the inner wall surface of the high-temperature roasting box (1). A driving motor (15) is fixedly arranged on the lower end surface of the high-temperature roasting box (1). The output end of the driving motor (15) is docked with the scraper (14).

3. A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol according to claim 1, characterized in that: An opening is formed in the high-temperature roasting box (1), and a sealing door (16) is rotatably connected in the opening. The sealing door (16) is adapted to the size of the opening. A door handle is fixedly arranged on the sealing door (16).

4. A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol according to claim 1, characterized in that: A reinforcing ring (17) is fixedly arranged on the high-temperature roasting box (1), and there are multiple reinforcing rings (17).

5. The high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol according to claim 1, characterized in that: Multiple positioning holes are formed in both the upper end surface of the lid (2) and the high-temperature roasting box (1), and the multiple positioning holes on the lid (2) and the high-temperature roasting box (1) correspond to each other in position two by two.

6. A high-temperature roasting device for producing hydrogen by low-temperature aqueous phase reforming of methanol according to claim 1, characterized in that: Multiple support feet (18) are fixedly arranged on the lower end surface of the high-temperature roasting box (1), and foot pads (19) are fixedly arranged at the bottom ends of the support feet (18).

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