Powdery raw material feeding device for hydrogen production and feeding control method

Abstract

The invention belongs to the technical field of feeding control, and provides a feeding device for powdery raw materials for hydrogen production and a feeding control method.The feeding device for the powdery raw materials for hydrogen production comprises a supporting frame, the supporting frame is fixedly connected with a material storage box, the material storage box is connected with a screening mechanism capable of screening the powdery raw materials, and the screening mechanism is arranged on the supporting frame. The screening mechanism is fixedly connected with a material guiding barrel, the interior of the material guiding barrel is divided into a first groove cavity and a second groove cavity through a partition plate, and the screening mechanism can guide screened powdery raw materials into the first groove cavity and the second groove cavity; a connecting frame is fixedly connected to the bottom of the material guiding barrel and rotationally connected with a flow guiding mechanism. According to the invention, under the vibration action of the sleeve, the powdery raw material is dispersed and is in full contact with hot air at the same time; furthermore, under the vibration effect of the sleeve, the dispersion uniformity of the powdery raw materials in the storage filter element can be further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of feed control, and in particular relates to a powdered raw material feed device for hydrogen production and a feed control method. Background Art

[0002] At present, the common methods of hydrogen production mainly include fossil fuel reforming hydrogen production, water electrolysis hydrogen production, etc. Although the technology of fossil fuel reforming hydrogen production is relatively mature, it relies on fossil fuels and inevitably produces greenhouse gases such as carbon dioxide. Solid metal hydrolysis hydrogen production, such as aluminum-based solid metal hydrolysis hydrogen production, has the advantages of large hydrogen production, fast hydrogen production rate, and long-term storage, and can produce hydrogen by reacting with water at room temperature and pressure.

[0003] The powdered solid metal hydrolysis hydrogen production materials mainly include aluminum alloy powder, aluminum gallium alloy powder and other powdered raw materials. Before the powdered raw materials participate in the hydrolysis reaction, they must first be loaded into the storage filter element, and then the storage filter element is installed on the fixed seat inside the reaction vessel. When the powdered raw materials are loaded into the storage filter element, it is necessary to avoid reaction with external water vapor to cause clogging of the feeding device; When the existing powdered raw material feeding device for hydrogen production is loading the powdered raw material into the storage filter, the powdered raw material is unevenly loaded in the storage filter, which makes it difficult for the powdered raw material inside the storage filter to fully react during the hydrolysis reaction; and during the loading process, part of the powdered raw material is not fully dried, causing the feeding device to be blocked, affecting the loading accuracy. Summary of the invention

[0004] The object of the present invention is to provide a powdered raw material feeding device and a feeding control method for hydrogen production, aiming to solve the technical problem of uneven filling of powdered raw materials in a material storage filter element in the prior art.

[0005] The present invention is implemented as follows: a powdered raw material feeding device for hydrogen production comprises a support frame, the support frame is fixedly connected to a material storage box, the material storage box is connected to a screening mechanism capable of screening the powdered raw material, the screening mechanism is fixedly connected to a material guide cylinder, the material guide cylinder is divided into a first slot cavity and a second slot cavity by a partition, and the screening mechanism can respectively introduce the screened powdered raw material into the first slot cavity and the second slot cavity; The bottom of the material guide cylinder is fixedly connected with a connecting frame, and the connecting frame is rotatably connected with a flow guide mechanism, and the flow guide mechanism can preheat the material storage filter element. The connecting frame is provided with a driving component that drives the flow guide mechanism to rotate, and the outside of the flow guide mechanism is slidably connected with a sleeve, and the flow guide mechanism is provided with an elastic component that elastically supports the sleeve. A transmission component is provided between the connecting frame and the sleeve, and when the flow guide mechanism drives the sleeve to reciprocate, the transmission component can drive the sleeve to reciprocate vertically along the flow guide mechanism. The sleeve is divided into two cavities, each of which is connected to a discharge pipe, and a solenoid valve is provided at the discharge pipe. The upper part of the sleeve is rotatably connected to a No. 1 rotating joint, and a No. 1 material guide pipe is connected between the No. 1 rotating joint and the No. 1 slot cavity and the No. 2 slot cavity respectively, and a stop valve is provided on the No. 1 material guide pipe. A drying mechanism is provided in the material guide cylinder, and the drying mechanism is used to push the powdered raw materials in the No. 1 slot cavity and the No. 2 slot cavity to the corresponding No. 1 material guide pipe port, and the drying mechanism can simultaneously dry the powdered raw materials in the No. 1 slot cavity and the No. 2 slot cavity when in contact; The No. 1 slot cavity is provided with an air drying component, which can perform hot air drying on the powdered raw materials in the No. 1 slot cavity, and a No. 2 material guide pipe is connected between the No. 1 slot cavity and the guide mechanism.

[0006] Further technical solution: the drying mechanism includes a No. 1 motor, an electric heating tube, a spiral mesh plate and a spiral push plate; The No. 1 motor is fixedly connected to the outer end surface of the material guide barrel, the output shaft of the No. 1 motor is fixedly connected to the electric heating tube, an insulating sleeve is arranged between the No. 1 motor and the electric heating tube, a section of the electric heating tube in the No. 1 groove cavity is fixedly connected to a spiral mesh plate, and a section of the electric heating tube in the No. 2 groove cavity is fixedly connected to a spiral push plate.

[0007] Further technical solution: the air drying assembly includes an air pump, an air outlet, a guide plate and a filter plate; An air pump is fixedly connected to the outer end surface of the material guiding cylinder, and the air outlet pipe of the air pump is rotatably connected to the electric heating tube, and the air outlet pipe of the air pump is communicated with the electric heating tube, a section of the electric heating tube in the No. 1 groove cavity is provided with a plurality of air outlet holes, a filter plate is arranged in the No. 1 groove cavity at a position away from the spiral mesh plate, a guide plate is arranged between the filter plate and the spiral mesh plate, and the guide plate is fixedly connected to the inner wall of the No. 1 groove cavity.

[0008] Further technical solution: the flow guiding mechanism comprises an air guide pipe, an electric telescopic sleeve, a plastic pipe and a guide valve; The air guide tube is rotatably connected to the connecting frame, the lower end of the air guide tube is connected to a vertically retractable electric telescopic sleeve, an electric control valve is arranged between the air guide tube and the electric telescopic sleeve, a plastic tube is arranged between the electric telescopic sleeve and the cavity, a guide valve for unidirectional air guidance into the cavity is arranged on the plastic tube, and a No. 1 filter is arranged at the interface between the plastic tube and the cavity; A No. 2 rotating joint is arranged at the port of the air guide pipe, the No. 2 rotating joint is connected with one end of the No. 2 material guide pipe, and a No. 2 filter is arranged at the interface between the No. 2 material guide pipe and the No. 1 groove cavity.

[0009] Further technical solution: the elastic component includes an electric rod, a spring baffle and a spring; The electric rod is fixedly connected to the outer wall of the air guide tube, the outer wall of the sleeve is fixedly connected to a fixing seat, the telescopic end of the electric rod is fixedly connected to a spring baffle, and a spring is arranged between the spring baffle and the fixing seat.

[0010] Further technical solution: The driving assembly includes a No. 2 motor and a gear transmission pair, the No. 2 motor is fixedly connected to the lower bottom surface of the material guide barrel, and the gear transmission pair is transmission-connected between the output shaft of the No. 2 motor and the air guide tube.

[0011] Further technical solution: The transmission assembly includes an upper gear plate and a lower gear plate, the upper gear plate is fixedly connected to the lower end surface of the connecting frame, the lower gear plate is fixedly connected to the sleeve, and the upper gear plate can engage with the lower gear plate.

[0012] Further technical solution: the screening mechanism includes a screening box, a screening plate, a No. 1 pipeline and a No. 2 pipeline; The screening box is connected to the No. 1 slot cavity and the No. 2 slot cavity with a No. 1 pipe and a No. 2 pipe respectively. A screening plate is obliquely arranged in the screening box. The lower side of the screening plate is connected to the screening box, and the other side of the screening plate is connected to the No. 1 pipe through a hose.

[0013] A method for controlling the feeding of a powdered raw material for hydrogen production is applied to the above-mentioned powdered raw material feeding device for hydrogen production, comprising the following steps: Step S1: Position the storage filter element below the support frame and lift it upwards through the lifting mechanism until the discharge pipe extends into the storage filter element; Step S2: starting the drying mechanism and the air-drying assembly, the drying mechanism preheats and dries the inner wall of the No. 2 slot cavity, and the air-drying assembly preheats and dries the inner wall of the No. 1 slot cavity, and then the hot air in the air-drying assembly enters the guide mechanism through the No. 2 material guide pipe, and the hot air in the guide mechanism preheats and dries the inner wall of the storage filter element; Step S3: Open the valve between the material storage box and the screening mechanism, the powdered raw materials in the material storage box enter the screening mechanism for screening, the powdered raw materials with larger volume enter the No. 1 slot cavity after screening, and the powdered raw materials with smaller volume enter the No. 2 slot cavity, and the drying mechanism is used to push the powdered raw materials in the No. 1 slot cavity and the No. 2 slot cavity to the corresponding No. 1 material guide pipe port and dry the powdered raw materials when they are in contact; at this time, start the air drying component to further perform hot air drying on the larger powdered raw materials in the No. 1 slot cavity; Step S4: the powdered raw materials in the No. 1 slot cavity and the No. 2 slot cavity respectively enter the two cavities through the No. 1 material guide pipe, at this time, the stop valve on the No. 1 material guide pipe is started to close, the driving assembly is started to drive the guide mechanism to reciprocate, the guide mechanism drives the sleeve to reciprocate, and the powdered materials in the two cavities in the sleeve are thrown out through the two discharge pipes, and the powdered raw materials in the two cavities are spread in the storage filter element; Step S5: When the discharge pipe feeds into the storage filter element, the guide mechanism is connected to the cavity, and the elastic component pushes the sleeve to lift. Under the transmission action of the transmission component, the sleeve vibrates vertically back and forth, and the hot air in the guide mechanism heats the powdered raw material in the cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The guide mechanism drives the sleeve to reciprocate, and the powder materials in the two cavities in the sleeve are thrown out through the two discharge pipes. The powder materials in the two cavities are evenly spread in the storage filter element, so that the subsequent powder materials can fully contact and react with water; when the electric rod is extended and pushes the sleeve upward, under the guidance of the upper toothed disc and the elastic support of the spring, the sleeve can reciprocate vertically along the outside of the air guide pipe, and the powder materials in the two cavities in the sleeve can be further dispersed; 2. Start the drying mechanism and the air-drying component. The drying mechanism preheats and dries the inner wall of the No. 2 slot cavity, and the air-drying component preheats and dries the inner wall of the No. 1 slot cavity. Then, the hot air in the air-drying component enters the guide mechanism through the No. 2 guide pipe. The hot air in the guide mechanism preheats and dries the inner wall of the storage filter element. At the same time, the sleeve contacts and is heated by the guide mechanism. With the cooperation of the air-drying component and the guide mechanism, it is possible to prevent the powdery material from contacting external moisture and causing chemical reactions when entering the storage filter element. 3. The drying mechanism can simultaneously dry the powdered raw materials in the No. 1 and No. 2 troughs; at this time, since the larger powdered raw materials in the No. 1 trough have a larger surface area and the gaps between the powdered raw materials are larger, the air drying component is used to further perform hot air drying on the larger powdered raw materials in the No. 1 trough; 4. Before the discharge pipe feeds the storage filter element, start the electric control valve between the air guide pipe and the electric telescopic sleeve to open, and the hot air enters the air guide pipe through the No. 2 rotary joint. At this time, the hot air is discharged from the electric telescopic sleeve and enters the storage filter element, thereby preheating the inner wall of the storage filter element; when the discharge pipe feeds the storage filter element, the guide valve is controlled to open and the electric control valve between the air guide pipe and the electric telescopic sleeve is closed, and the hot air enters the cavity to heat the powdered raw material to prevent the powdered raw material in the cavity from being too humid and sticking to block the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the screening mechanism in the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the material guide barrel in the present invention.

[0018] Figure 4 It is a schematic diagram of the connection between the flow guiding mechanism and the sleeve in the present invention.

[0019] Figure 5 for Figure 4 A magnified schematic diagram of area A in the middle.

[0020] Figure 6 for Figure 4 A magnified schematic diagram of area B.

[0021] Figure 7 It is a structural schematic diagram of the flow guiding mechanism in the present invention.

[0022] Figure 8 It is a schematic diagram of the internal structure of the sleeve in the present invention.

[0023] In the attached figure: 1, support frame; 2, storage box; 3, screening mechanism; 31, screening box; 32, screening plate; 33, No. 1 pipeline; 34, No. 2 pipeline; 4, drying mechanism; 41, No. 1 motor; 42, electric heating pipe; 43, spiral mesh plate; 44, spiral push plate; 5, air drying component; 51, air pump; 52, air outlet; 53, guide plate; 54, filter plate; 6, flow guide mechanism; 61, air guide pipe; 62, electric telescopic sleeve; 63, plastic pipe; 64, guide valve; 7, Elastic component; 71, electric rod; 72, spring baffle; 73, spring; 74, fixed seat; 8, driving component; 81, No. 2 motor; 82, gear transmission pair; 9, transmission component; 91, upper gear plate; 92, lower gear plate; 10, material guide cylinder; 11, No. 1 groove cavity; 12, No. 2 groove cavity; 13, connecting frame; 14, sleeve; 15, No. 1 material guide pipe; 16, No. 2 material guide pipe; 17, No. 1 rotating joint; 18, cavity; 19, discharge pipe; 20, No. 2 rotating joint. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] like Figure 1-Figure 8As shown, a powdered raw material feeding device for hydrogen production provided by the present invention comprises a support frame 1, the support frame 1 is fixedly connected to a storage box 2, the storage box 2 is connected to a screening mechanism 3 capable of screening the powdered raw material, the screening mechanism 3 is fixedly connected to a material guide cylinder 10, the material guide cylinder 10 is divided into a first slot cavity 11 and a second slot cavity 12 by a partition, and the screening mechanism 3 can introduce the screened powdered raw material into the first slot cavity 11 and the second slot cavity 12 respectively; The bottom of the material guide cylinder 10 is fixedly connected with a connecting frame 13, and the connecting frame 13 is rotatably connected with a flow guide mechanism 6, and the flow guide mechanism 6 can preheat the material storage filter element. The connecting frame 13 is provided with a driving component 8 that drives the flow guide mechanism 6 to rotate, and the flow guide mechanism 6 is externally slidably connected with a sleeve 14, and the flow guide mechanism 6 is provided with an elastic component 7 that elastically supports the sleeve 14. A transmission component 9 is provided between the connecting frame 13 and the sleeve 14. When the flow guide mechanism 6 drives the sleeve 14 to reciprocate, the transmission component 9 can push the sleeve 14 to reciprocate vertically along the flow guide mechanism 6. The sleeve 14 is divided into two cavities 18, and the cavities 18 are connected to a discharge pipe 19, and a solenoid valve is provided at the discharge pipe 19. The upper part of the sleeve 14 is rotatably connected to a No. 1 rotating joint 17, and a No. 1 material guide pipe 15 is connected between the No. 1 rotating joint 17 and the No. 1 slot cavity 11 and the No. 2 slot cavity 12, respectively. The No. 1 material guide pipe 15 is provided with a stop valve, and a drying mechanism 4 is provided in the material guide cylinder 10. The drying mechanism 4 is used to push the powdered raw materials in the No. 1 slot cavity 11 and the No. 2 slot cavity 12 to the corresponding No. 1 material guide pipe 15 port, and the drying mechanism 4 can simultaneously dry the powdered raw materials in the No. 1 slot cavity 11 and the No. 2 slot cavity 12 when in contact; The first slot cavity 11 is provided with an air-drying component 5 , which can perform hot air drying on the powdered raw materials in the first slot cavity 11 . A second material guide pipe 16 is connected between the first slot cavity 11 and the guide mechanism 6 .

[0027] A method for controlling the feeding of a powdered raw material for hydrogen production is applied to the powdered raw material feeding device for hydrogen production described in the above embodiment, and comprises the following steps: Step S1: Position the storage filter element below the support frame 1 and lift it upwards through the lifting mechanism until the discharge pipe 19 extends into the storage filter element; Step S2: first start the drying mechanism 4 and the air-drying component 5, the drying mechanism 4 preheats and dries the inner wall of the No. 2 slot cavity 12, and the air-drying component 5 preheats and dries the inner wall of the No. 1 slot cavity 11, and then the hot air in the air-drying component 5 enters the guide mechanism 6 through the No. 2 material guide pipe 16, and the hot air in the guide mechanism 6 preheats and dries the inner wall of the storage filter element, and at the same time, the sleeve 14 contacts with the guide mechanism 6 and is heated. With the cooperation of the air-drying component 5 and the guide mechanism 6, it is possible to prevent the powdered material from coming into contact with external moisture and producing a chemical reaction during the process of entering the storage filter element.

[0028] Step S3: Open the valve between the material storage box 2 and the screening mechanism 3, the powdered raw materials in the material storage box 2 enter the screening mechanism 3 for screening, the powdered raw materials with larger volume enter the No. 1 slot cavity 11 after screening, and the powdered raw materials with smaller volume enter the No. 2 slot cavity 12, the drying mechanism 4 is used to push the powdered raw materials in the No. 1 slot cavity 11 and the No. 2 slot cavity 12 to the corresponding No. 1 material guide pipe 15 port, and the drying mechanism 4 can simultaneously dry the powdered raw materials in the No. 1 slot cavity 11 and the No. 2 slot cavity 12 when in contact; at this time, since the surface area of ​​the larger powdered raw materials in the No. 1 slot cavity 11 is larger, and the gaps between the powdered raw materials are larger, the air-drying component 5 is used to further perform hot air drying on the larger powdered raw materials in the No. 1 slot cavity 11; Step S4: the powdered raw materials in the No. 1 groove cavity 11 and the No. 2 groove cavity 12 respectively enter the two cavities 18 through the No. 1 guide pipe 15. At this time, the stop valve on the No. 1 guide pipe 15 is started to close, and the driving component 8 is started to drive the guide mechanism 6 to rotate back and forth. The guide mechanism 6 drives the sleeve 14 to rotate back and forth. The powdered materials in the two cavities 18 in the sleeve 14 are thrown out through the two discharge pipes 19. The powdered raw materials in the two cavities 18 are evenly spread in the storage filter element, so that the powdered raw materials are evenly dispersed in the storage filter element, which is convenient for the subsequent powdered raw materials to fully contact and react with water; Step S5: When the discharge pipe 19 feeds the material storage filter element, the guide mechanism 6 is connected to the cavity 18, and the elastic component 7 pushes the sleeve 14 to lift. Under the transmission action of the transmission component 9, the sleeve 14 vibrates vertically back and forth, and the hot air in the guide mechanism 6 heats the powdered raw material in the cavity 18. Under the vibration action of the sleeve 14, the powdered raw material is dispersed and fully contacted with the hot air, so that the powdered raw material is further dried, which is convenient for feeding into the material storage filter element; further, under the vibration action of the sleeve 14, the dispersion uniformity of the powdered raw material in the material storage filter element can be further improved.

[0029] like Figure 3 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention, the drying mechanism 4 includes a No. 1 motor 41, an electric heating tube 42, a spiral mesh plate 43 and a spiral push plate 44; The No. 1 motor 41 is fixedly connected to the outer end surface of the material guiding cylinder 10, the output shaft of the No. 1 motor 41 is fixedly connected to the electric heating tube 42, an insulating sleeve is provided between the No. 1 motor 41 and the electric heating tube 42, a section of the electric heating tube 42 in the No. 1 groove cavity 11 is fixedly connected to a spiral mesh plate 43, and a section of the electric heating tube 42 in the No. 2 groove cavity 12 is fixedly connected to a spiral push plate 44.

[0030] In this embodiment, the No. 1 motor 41 is started, the No. 1 motor 41 drives the electric heating tube 42 to rotate, the electric heating tube 42 drives the spiral mesh plate 43 to heat and push the larger volume powdered raw material in the No. 1 groove cavity 11, and the electric heating tube 42 simultaneously drives the spiral push plate 44 to heat and push the smaller volume powdered raw material in the No. 2 groove cavity 12.

[0031] like Figure 3 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention, the air drying component 5 includes an air pump 51, an air outlet 52, a guide plate 53 and a filter plate 54; An air pump 51 is fixedly connected to the outer end surface of the material guiding cylinder 10, and the air outlet pipe of the air pump 51 is rotatably connected to the electric heating tube 42, and the air outlet pipe of the air pump 51 is communicated with the electric heating tube 42. The electric heating tube 42 is provided with a plurality of air outlet holes 52 in a section of the No. 1 groove cavity 11, and a filter plate 54 is arranged at a position away from the spiral mesh plate 43 in the No. 1 groove cavity 11, and a guide plate 53 is arranged between the filter plate 54 and the spiral mesh plate 43, and the guide plate 53 is fixedly connected to the inner wall of the No. 1 groove cavity 11.

[0032] In this embodiment, the air pump 51 is started, and the air pump 51 introduces the hot air in the electric heating tube 42 into the first groove cavity 11 through the air outlet 52. At this time, since the spiral mesh plate 43 is a mesh structure, the hot air can fully contact the powdered raw material, thereby hot air drying the powdered raw material in the first groove cavity 11; The air-dried powdered raw material enters into the No. 1 material guide pipe 15 through the lower side of the guide plate 53, and the wind flows to the filter plate 54 through the upper side of the guide plate 53. The filter plate 54 can absorb the water vapor in the hot air, and then the hot air enters into the No. 2 material guide pipe 16 from the lower side of the guide plate 53. The No. 2 material guide pipe 16 is arranged on one side of the No. 1 material guide pipe 15, so that the hot air can heat the port of the No. 1 material guide pipe 15 to avoid the powdered raw material sticking and clogging at the port of the No. 1 material guide pipe 15.

[0033] like Figure 7 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention is provided, wherein the flow guiding mechanism 6 comprises an air guiding pipe 61, an electric telescopic sleeve 62, a plastic pipe 63 and a guide valve 64; The air guide tube 61 is rotatably connected to the connecting frame 13, and the lower end of the air guide tube 61 is connected to a vertically retractable electric telescopic sleeve 62, an electric control valve is arranged between the air guide tube 61 and the electric telescopic sleeve 62, a plastic tube 63 is arranged between the electric telescopic sleeve 62 and the cavity 18, and a guide valve 64 for unidirectional air guidance into the cavity 18 is arranged on the plastic tube 63, and a No. 1 filter is arranged at the interface between the plastic tube 63 and the cavity 18; A No. 2 rotating joint 20 is provided at the end of the air guide pipe 61 , and the No. 2 rotating joint 20 is connected to one end of the No. 2 material guide pipe 16 . A No. 2 filter is provided at the interface between the No. 2 material guide pipe 16 and the No. 1 groove cavity 11 .

[0034] In this embodiment, before the discharge pipe 19 feeds the material storage filter element, the electric control valve between the air guide pipe 61 and the electric telescopic sleeve 62 is started to open, and the hot air enters the air guide pipe 61 through the second rotary joint 20. At this time, the hot air is discharged from the electric telescopic sleeve 62 and enters the material storage filter element, thereby preheating the inner wall of the material storage filter element; When the discharge pipe 19 feeds into the storage filter element, the guide valve 64 is controlled to open and the electric control valve between the air guide pipe 61 and the electric telescopic sleeve 62 is closed, and hot air enters the cavity 18 to heat the powdered raw material to prevent the powdered raw material in the cavity 18 from being too humid in the cavity 18 and sticking to and clogging the discharge pipe 19.

[0035] like Figure 6 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention is provided, wherein the elastic component 7 includes an electric rod 71, a spring baffle 72 and a spring 73; The electric rod 71 is fixedly connected to the outer wall of the air guide tube 61 , the outer wall of the sleeve 14 is fixedly connected to a fixing seat 74 , the telescopic end of the electric rod 71 is fixedly connected to a spring baffle 72 , and a spring 73 is provided between the spring baffle 72 and the fixing seat 74 .

[0036] In this embodiment, the spring 73 elastically supports the sleeve 14 , and the electric rod 71 is started to extend. The electric rod 71 can push the fixing seat 74 through the spring 73 , and the fixing seat 74 can drive the sleeve 14 to move vertically.

[0037] like Figure 5 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention, the driving assembly 8 includes a No. 2 motor 81 and a gear transmission pair 82, the No. 2 motor 81 is fixedly connected to the lower bottom surface of the material guide barrel 10, and the output shaft of the No. 2 motor 81 is transmission-connected to the air guide pipe 61 via the gear transmission pair 82.

[0038] In this embodiment, the second motor 81 drives the air guide tube 61 to reciprocate through the gear transmission pair 82.

[0039] like Figure 4 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention, the transmission assembly 9 includes an upper toothed disc 91 and a lower toothed disc 92, the upper toothed disc 91 is fixedly connected to the lower end surface of the connecting frame 13, the lower toothed disc 92 is fixedly connected to the sleeve 14, and the upper toothed disc 91 can engage with the lower toothed disc 92.

[0040] In this embodiment, when the electric rod 71 extends and pushes the sleeve 14 upward, the lower toothed disc 92 on the sleeve 14 is in elastic contact with the upper toothed disc 91 on the connecting frame 13. When the sleeve 14 drives the lower toothed disc 92 to rotate, under the guiding effect of the upper toothed disc 91 and the elastic support of the spring 73, the sleeve 14 can vibrate vertically back and forth along the outside of the air guide tube 61. At this time, the powdered raw materials in the two cavities 18 in the sleeve 14 can be further dispersed.

[0041] like Figure 2 As shown, a powdered raw material feeding device for hydrogen production provided by the present invention is provided, wherein the screening mechanism 3 comprises a screening box 31, a screening plate 32, a No. 1 pipeline 33 and a No. 2 pipeline 34; A No. 1 pipe 33 and a No. 2 pipe 34 are respectively connected between the screening box 31 and the No. 1 slot cavity 11 and the No. 2 slot cavity 12. A screening plate 32 is obliquely arranged in the screening box 31. The lower side of the screening plate 32 is connected to the screening box 31, and the other side of the screening plate 32 is connected to the No. 1 pipe 33 through a hose.

[0042] In this embodiment, when the powdered raw materials in the storage box 2 enter the screening box 31, the screening plate 32 screens the powdered raw materials, and the powdered raw materials with larger volumes enter the No. 1 slot cavity 11 through the No. 1 pipe 33, and the powdered raw materials with smaller volumes enter the No. 2 slot cavity 12 through the No. 2 pipe 34.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powdered raw material feeding device for hydrogen production, comprising a support frame (1), wherein the support frame (1) is fixedly connected to a material storage box (2), characterized in that: The material storage box (2) is connected to a screening mechanism (3) capable of screening powdered raw materials, the screening mechanism (3) is fixedly connected to a material guide cylinder (10), and the material guide cylinder (10) is divided into a first slot cavity (11) and a second slot cavity (12); The bottom of the material guide cylinder (10) is fixedly connected to a connecting frame (13), the connecting frame (13) is rotatably connected to a flow guide mechanism (6), the flow guide mechanism (6) can preheat the material storage filter element, the connecting frame (13) is provided with a driving component (8) for driving the flow guide mechanism (6) to rotate, the flow guide mechanism (6) is slidably connected to the outside of a sleeve (14), the flow guide mechanism (6) is provided with an elastic component (7) for elastically supporting the sleeve (14), a transmission component (9) is provided between the connecting frame (13) and the sleeve (14), and when the flow guide mechanism (6) drives the sleeve (14) to reciprocate, the transmission component (9) can drive the sleeve (14) to reciprocate vertically along the flow guide mechanism (6); The sleeve (14) is divided into two cavities (18), each of the cavities (18) is connected to a discharge pipe (19), and a solenoid valve is provided at the discharge pipe (19). The upper part of the sleeve (14) is rotatably connected to a No. 1 rotating joint (17), and a No. 1 material guide pipe (15) is respectively connected between the No. 1 rotating joint (17) and the No. 1 groove cavity (11) and the No. 2 groove cavity (12), and a stop valve is provided on each of the No. 1 material guide pipes (15). A drying mechanism (4) is provided in the material guide cylinder (10), and the drying mechanism (4) is used to push the powdered raw material to the port of the No. 1 material guide pipe (15), and the drying mechanism (4) can simultaneously dry the powdered raw material; The first tank cavity (11) is provided with an air drying component (5), and the air drying component (5) is capable of performing hot air drying on the powdered raw material in the first tank cavity (11). A second material guide pipe (16) is connected between the first tank cavity (11) and the guide mechanism (6).

2. The powdered raw material feeding device for hydrogen production according to claim 1, characterized in that: The drying mechanism (4) comprises a first motor (41), an electric heating tube (42), a spiral mesh plate (43) and a spiral push plate (44); The No. 1 motor (41) is fixedly connected to the outer end surface of the material guide barrel (10); the output shaft of the No. 1 motor (41) is fixedly connected to an electric heating tube (42); a heat insulating sleeve is provided between the No. 1 motor (41) and the electric heating tube (42); a section of the electric heating tube (42) in the No. 1 groove cavity (11) is fixedly connected to a spiral mesh plate (43); and a section of the electric heating tube (42) in the No. 2 groove cavity (12) is fixedly connected to a spiral push plate (44).

3. The powdered raw material feeding device for hydrogen production according to claim 2, characterized in that: The air-drying component (5) comprises an air pump (51), an air outlet (52), a guide plate (53) and a filter plate (54); An air pump (51) is fixedly connected to the outer end surface of the material guide cylinder (10); an air outlet pipe of the air pump (51) is rotatably connected to the electric heating pipe (42), and the air outlet pipe of the air pump (51) is in communication with the electric heating pipe (42); a section of the electric heating pipe (42) in the No. 1 groove cavity (11) is provided with a plurality of air outlet holes (52); a filter plate (54) is provided in the No. 1 groove cavity (11) at a position away from the spiral mesh plate (43); a guide plate (53) is provided between the filter plate (54) and the spiral mesh plate (43); and the guide plate (53) is fixedly connected to the inner wall of the No. 1 groove cavity (11).

4. The powdered raw material feeding device for hydrogen production according to claim 1, characterized in that: The flow guiding mechanism (6) comprises an air guiding pipe (61), an electric telescopic sleeve (62), a plastic pipe (63) and a guide valve (64); The air guide tube (61) is rotatably connected to the connecting frame (13); the lower end of the air guide tube (61) is connected to a vertically retractable electric telescopic sleeve (62); an electric control valve is provided between the air guide tube (61) and the electric telescopic sleeve (62); a plastic tube (63) is provided between the electric telescopic sleeve (62) and the cavity (18); a guide valve (64) for unidirectionally guiding air into the cavity (18) is provided on the plastic tube (63); and a first filter screen is provided at the interface between the plastic tube (63) and the cavity (18); A second rotating joint (20) is provided at the end of the air guide pipe (61), the second rotating joint (20) is connected to one end of the second material guide pipe (16), and a second filter is provided at the interface between the second material guide pipe (16) and the first groove cavity (11).

5. The powdered raw material feeding device for hydrogen production according to claim 4, characterized in that: The elastic component (7) comprises an electric rod (71), a spring baffle (72) and a spring (73); The electric rod (71) is fixedly connected to the outer wall of the air guide tube (61); the outer wall of the sleeve (14) is fixedly connected to a fixing seat (74); the telescopic end of the electric rod (71) is fixedly connected to a spring baffle (72); and a spring (73) is provided between the spring baffle (72) and the fixing seat (74).

6. The powdered raw material feeding device for hydrogen production according to claim 1, characterized in that: The transmission assembly (9) comprises an upper toothed disc (91) and a lower toothed disc (92); the upper toothed disc (91) is fixedly connected to the lower end surface of the connecting frame (13); the lower toothed disc (92) is fixedly connected to the sleeve (14); and the upper toothed disc (91) can mesh with the lower toothed disc (92).

7. A method for controlling the feeding of a powdered raw material for hydrogen production, applied to the feeding device for a powdered raw material for hydrogen production according to any one of claims 2 to 6, characterized in that: The following steps are involved: Step S1: positioning the material storage filter element below the support frame (1) and lifting it upwards through the lifting mechanism until the discharge pipe (19) extends into the material storage filter element; Step S2: starting the drying mechanism (4) and the air-drying component (5), wherein the drying mechanism (4) preheats and dries the inner wall of the No. 2 slot cavity (12), and the air-drying component (5) preheats and dries the inner wall of the No. 1 slot cavity (11), and then the hot air in the air-drying component (5) enters the guide mechanism (6) through the No. 2 material guide pipe (16), and the hot air in the guide mechanism (6) preheats and dries the inner wall of the material storage filter element; Step S3: opening the valve between the material storage box (2) and the screening mechanism (3), the powdered raw materials in the material storage box (2) enter the screening mechanism (3) for screening, the powdered raw materials with a larger volume enter the No. 1 slot (11) after screening, and the powdered raw materials with a smaller volume enter the No. 2 slot (12), the drying mechanism (4) is used to push the powdered raw materials in the No. 1 slot (11) and the No. 2 slot (12) to the corresponding No. 1 material guide pipe (15) port and dry the powdered raw materials when they are in contact; at this time, the air drying component (5) is started to further perform hot air drying on the powdered raw materials with a larger volume in the No. 1 slot (11); Step S4: the powdery raw materials in the No. 1 groove cavity (11) and the No. 2 groove cavity (12) respectively enter the two cavities (18) through the No. 1 material guide pipe (15). At this time, the stop valve on the No. 1 material guide pipe (15) is started to close, and the driving component (8) is started to drive the flow guide mechanism (6) to reciprocate. The flow guide mechanism (6) drives the sleeve (14) to reciprocate. The powdery materials in the two cavities (18) in the sleeve (14) are thrown out through the two discharge pipes (19). The powdery raw materials in the two cavities (18) are spread in the storage filter element; Step S5: When the discharge pipe (19) feeds material into the storage filter element, the flow guide mechanism (6) is connected to the cavity (18), and the elastic component (7) pushes the sleeve (14) to rise. Under the transmission action of the transmission component (9), the sleeve (14) reciprocates and vibrates vertically, and the hot air in the flow guide mechanism (6) heats the powdered raw material in the cavity (18).

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