Feeding device
By designing a feeding device that includes a weighing sensor and a control valve, the problems of dust generation and low feeding accuracy in powder feeders are solved, realizing an efficient and precise powder feeding process, which is suitable for the production of solid oxide electrolytic cells.
Patent Information
- Application Number
- CN202520242494.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing powder feeders have dust problems during the feeding process, resulting in low feeding accuracy and low efficiency, especially for raw material powders with a low mass content, which affects the production of solid oxide electrolytic cells.
A feeding device was designed, including a material box, a feeding mechanism, a material hopper, and a discharging mechanism. The material hopper is equipped with a weighing sensor and a control valve. The weighing sensor controls the opening and closing of the material hopper. Combined with a spiral agitator and a disc agitator, the device achieves accurate weighing and mixing of materials, reducing dust generation.
It improves the accuracy and efficiency of material feeding, reduces dust generation, and ensures uniform mixing and efficient feeding of various powder raw materials.
Smart Images
Figure CN223747501U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to powder feeding technology field, especially a kind of feeding device. BACKGROUND
[0002] With the increasingly prominent problems of resource depletion and environmental pollution, clean energy gradually becomes mainstream energy, and among them, water electrolysis hydrogen is increasingly valued by people due to its high efficiency, environmental protection and other advantages. Solid oxide electrolysis cell (SOEC) has the advantages of high efficiency and low pollution, and can realize the efficient, clean and large-scale preparation of hydrogen by using solid oxide electrolysis cell technology. The manufacturing process of SOEC electrode: mix various raw material powders, additives and solvents according to the proportion, and prepare a solid oxide electrolysis cell electrode with good performance by coating, sintering, post-processing and other processes such as screen printing, manual coating or dip coating. In the early mixing process, multiple powders with uneven particle sizes are often used, and when feeding with the existing powder feeder, the powders will be lifted, especially when feeding the raw material powder with low mass fraction, the serious dust problem will cause low feeding accuracy and low feeding efficiency, which is not conducive to the production of solid oxide electrolysis cell. SUMMARY
[0003] The utility model aims to provide a kind of feeding device, reduce the generation of dust when running, improve feeding efficiency and accuracy.
[0004] To achieve the above purpose, the utility model provides a kind of feeding device, comprising:
[0005] material box;
[0006] feeding mechanism, including the outlet located at upper end and the inlet located at lower end, the inlet of the feeding mechanism is arranged in the material box;
[0007] material hopper, arranged above the material box, the inlet of the material hopper is communicated with the outlet of the feeding mechanism, a weighing sensor is arranged on the material hopper, a first control valve is installed at the outlet of the material hopper, and the first control valve is signal connected with the weighing sensor;And
[0008] discharging mechanism, including pipeline, disc agitator and first screw agitator, the upper end of the pipeline is communicated with the outlet of the material hopper, and the disc agitator and the first screw agitator are communicated with the outlet of the pipeline.
[0009] In some embodiments, the material box, the feeding mechanism, the material hopper and the pipeline are each provided with one or more, and are sequentially and one-to-one corresponding communication.
[0010] In some embodiments, two outlets of the pipes are in communication with an inlet of the disc agitator, two other outlets of the pipes are in communication with an outlet of the disc agitator, and the outlet of the disc agitator is in communication with an inlet of the first screw agitator.
[0011] In some embodiments, the discharging mechanism comprises a second screw agitator, which is arranged in the pipe and close to the outlet of the material hopper.
[0012] In some embodiments, the feeding mechanism comprises a protective cover, a conveying belt arranged in the protective cover, a partition plate mounted on the conveying belt, and a first motor mounted on the protective cover, the first motor being used to drive the conveying belt, the lower end of the conveying belt extending into the material box, and the upper end of the conveying belt extending into the material hopper.
[0013] In some embodiments, a support frame is arranged at the lower part of the material hopper.
[0014] In some embodiments, the first screw agitator forms an angle of 45-65° with the vertical direction.
[0015] In some embodiments, the first screw agitator comprises a shell, a screw agitator paddle arranged in the shell, and a second motor mounted on the shell, the second motor being in transmission connection with the screw agitator paddle.
[0016] In some embodiments, the first screw agitator comprises a second control valve, which is mounted at the outlet of the shell.
[0017] In some embodiments, the second control valve is a distance a from the lower end of the screw agitator paddle, and the length of the shell is b, and 0.15b≤a≤0.25b is satisfied.
[0018] The utility model provides a kind of feeding device, compared with prior art, its beneficial effects are in that:
[0019] By arranging the material hopper above the material box, the inlet of the material hopper is in communication with the outlet of the feeding mechanism, a weighing sensor is arranged on the material hopper, a first control valve is mounted at the outlet of the material hopper, the first control valve is signal-connected with the weighing sensor, and the opening or closing of the first control valve is controlled by the weighing sensor, so as to improve the feeding efficiency and precision; the material box, the feeding mechanism, the material hopper and the discharging mechanism are closed and communicated, and the generation of dust is reduced during operation. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 A perspective structural schematic view of the feeding device provided in the embodiments of the utility model.
[0021] Figure 2 The application provides a feeding device upper feeding mechanism local amplification structure schematic view.
[0022] Figure 3 The application provides a feeding device material hopper and discharge mechanism amplification structure schematic view.
[0023] Figure 4 The application provides a feeding device first spiral agitator explosion amplification structure schematic view.
[0024] In the figure: 1, material box; 2, upper feeding mechanism; 21, protective cover; 22, conveying belt; 23, partition plate; 24, first motor; 3, material hopper; 31, weighing sensor; 32, first control valve; 33, cover plate; 4, discharge mechanism; 41, pipeline; 42, disc agitator; 43, first spiral agitator; 431, shell; 432, spiral stirring paddle; 433, second motor; 434, second control valve; 44, second spiral agitator; 5, support frame. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.
[0026] It should be understood that, in the description of the application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element indicated must be in a particular orientation, constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. The terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. That is, the features with "first", "second" can explicitly or implicitly include one or more of the features. In addition, unless otherwise stated, the meaning of "multiple" is two or more.
[0027] In addition, the technical features involved in different embodiments of the application described below can be combined with each other as long as there is no conflict.
[0028] As Figures 1-4As shown, the material feeding device of the embodiment of the utility model, including material box 1, feeding mechanism 2, material hopper 3 and discharge mechanism 4, wherein feeding mechanism 2 transports the material in material box 1 to material hopper 3 to weigh, then discharges through discharge mechanism 4 to complete the feeding operation, and the specific moving direction of the material is shown by the arrow in Figure 1 .
[0029] Feeding mechanism 2 includes the outlet at the upper end and the inlet at the lower end, and the inlet of feeding mechanism 2 is arranged in material box 1. In this way, feeding mechanism 2 can transport the material from material box 1 to material hopper 3.
[0030] Material hopper 3 is arranged above material box 1, the inlet of material hopper 3 is communicated with the outlet of feeding mechanism 2, a weighing sensor 31 is arranged on material hopper 3, a first control valve 32 is installed at the outlet of material hopper 3, and the first control valve 32 is signal connected with the weighing sensor 31. Specifically, when there is no material in material hopper 3 (at this time, the weighing sensor 31 detects that the weight is 0), the first control valve 32 at the outlet of material hopper 3 is opened; when the mass change in material hopper 3 is identified (at this time, the weighing sensor 31 detects that the weight is greater than 0), the first control valve 32 at the outlet of material hopper 3 is closed; as the mass of the material in material hopper 3 increases, when the required mass is reached (at this time, the weighing reaches the set formula mass), the first control valve 32 at the outlet of material hopper 3 is opened, and the feeding mechanism 2 stops transporting the material.
[0031] Discharge mechanism 4 includes a pipeline 41, a disc stirrer 42 and a first spiral stirrer 43, the upper end of the pipeline 41 is communicated with the outlet of the material hopper 3, and the disc stirrer 42 and the first spiral stirrer 43 are communicated with the outlet of the pipeline 41. Among them, the pipeline 41 is arranged to be downwardly bent, which can reduce the material falling speed, the disc stirrer 42 realizes the premixing of solid-liquid or solid-solid material, and the first spiral stirrer 43 can further mix the material.
[0032] Based on the above structure, the opening or closing of the first control valve 32 is controlled by the weighing sensor 31, which can improve the feeding efficiency and precision; the material box 1, the feeding mechanism 2, the material hopper 3 and the discharge mechanism 4 are closed and communicated, and the generation of dust is reduced during operation.
[0033] As shown in Figure 1 and 3 , in some embodiments, the material box 1, the feeding mechanism 2, the material hopper 3 and the pipeline 41 are each provided with one or more, and are sequentially and one-to-one communicated. In this way, the mixing and feeding requirements of various materials can be met.
[0034] As shown in Figure 3As shown, in some embodiments, the outlets of two pipes 41 are connected to the inlet of the disc agitator 42, the outlets of the other two pipes 41 are connected to the outlet of the disc agitator 42, and the outlet of the disc agitator 42 is connected to the inlet of the first spiral agitator 43. In this way, the materials in all four pipes 41 can be mixed in the first spiral agitator 43.
[0035] like Figure 3 As shown, in some embodiments, the discharge mechanism 4 includes a second spiral agitator 44, which is disposed in the pipe 41 and near the outlet of the material hopper 3. The second spiral agitator 44 facilitates the smooth discharge of material from the pipe 41.
[0036] like Figure 2 As shown, in some embodiments, the feeding mechanism 2 includes a protective cover 21, a conveyor belt 22 disposed within the protective cover 21, a partition 23 mounted on the conveyor belt 22, and a first motor 24 mounted on the protective cover 21. The first motor 24 drives the conveyor belt 22, the lower end of which extends into the material box 1, and the upper end of which extends into the material hopper 3. Thus, the partition 23, moving with the conveyor belt 22, can transport materials from the material box 1 to the material hopper 3. If the material is powder, the partition 23 is flat; if the material is liquid, the partition 23 is conical.
[0037] like Figure 1 As shown, in some embodiments, the feeding device includes a support frame 5, which is installed at the lower part of the material hopper 3. The support frame 5 is used to support the material hopper 3 and keep the structure of the material hopper 3 stable.
[0038] like Figure 3 As shown, in some embodiments, the first spiral agitator 43 makes an angle of 45°-65° with the vertical direction. The arrangement of the first spiral agitator 43 facilitates the discharge of materials.
[0039] like Figure 4 As shown, in some embodiments, the first spiral mixer 43 includes a housing 431, a spiral mixing blade 432 disposed within the housing 431, and a second motor 433 mounted on the housing 431. The second motor 433 is drively connected to the spiral mixing blade 432. The spiral mixing blade 432 is driven to rotate by the second motor 433, which can transport and mix materials.
[0040] In some embodiments, the first spiral agitator 43 includes a second control valve 434, which is installed at the outlet of the housing 431. When feeding is required, the second control valve 434 is opened to feed the material.
[0041] In some embodiments, a cover plate 33 is arranged on the material hopper 3, and the outlet of the feeding mechanism 2 communicates with the material hopper 3 through the cover plate 33. Dust overflow from the material hopper 3 is avoided.
[0042] In the above embodiments, by using the relatively static powder conveying mode (the partition plate 23 is relatively static with the material) combined with the weighing sensor 31, the seamless connection between components reduces the dust problem of the raw material powder during the weighing and transfer processes, and the vacuum powder extraction step in the existing powder feeder is omitted, avoiding the dust disturbance caused by the pressure during powder extraction. Two of the four pipelines 41 are connected to the disc mixer 42 for premixing, which can realize the mixing and feeding process of pure solid and solid materials, and also realize the mixing and pulping process of solid and liquid materials. The first screw mixer 43 is arranged at a certain angle to cooperate with the gravity of the powder to make the powder weighing more accurate, greatly improving the feeding efficiency and accuracy, and enabling the low-quality material powder in the raw material formula to be fully mixed without loss.
[0043] If the angle of the bent pipeline 41 is too large, the mixed powder will be left in the pipeline 41 and the outflow will be uneven, causing outflow deviation. If the angle is too small, the mixed powder will not be fully mixed and will be directly discharged, causing deviation in the mixing formula and even powder agglomeration.
[0044] The distance between the second control valve 434 and the lower end of the screw stirring paddle 432 is a, and the length of the shell 431 is b, which satisfies 0.15b≤a≤0.25b. It should be noted that if the distance between the second control valve 434 and the lower end of the screw stirring paddle 432 is less than 0.15 times the length of the shell 431, the mixed raw material powder will be easily squeezed and blocked in front of the second control valve 434, and even the shell 431 will be blocked (the powder has a certain humidity and is not completely dry). If it is greater than 0.25 times, the overall height of the feeding device needs to be increased to meet the height requirement of the first screw mixer 43, which may cause residual powder and make it difficult to observe whether the powder is completely discharged.
[0045] In addition, the feeding process of the feeding device is as follows:
[0046] S1: A batch of different types of solid or liquid materials is added to each material box 1, and the feeding mechanism 2 is started after the material box 1 is closed. The material is transported to each material hopper 3 through the partition plate 23, and the weighing sensor 31 recognizes the weight increase, and the first control valve 32 is in a closed state.
[0047] S2: when the material in each hopper 3 reaches the required mass of the formula, the feeding mechanism 2 is closed while the first control valve 32 is opened, the material in each hopper 3 enters the pipeline 41 under the action of the second screw stirrer 44, the solid material in two pipelines 41 directly enters the first screw stirrer 43, and the solid-liquid or solid-solid material in the other two pipelines 41 first enters the disc stirrer 42 and then enters the first screw stirrer 43;
[0048] S3: the first screw stirrer 43 is opened, and the required multiple materials are fully mixed, the mixed powder or slurry is located between the lower end of the screw stirring paddle 432 and the second control valve 434, the second control valve 434 is opened, so that the mixed material enters the receiving container through the vertical discharge port, and the discharging process is completed.
[0049] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be regarded as the protection scope of the present application.
Claims
1. A dosing device, characterized in that The utility model relates to a material feeding device, which comprises a material box, a feeding mechanism, a material hopper and a discharging mechanism. The feeding mechanism comprises an outlet at the upper end and an inlet at the lower end, and the inlet of the feeding mechanism is arranged in the material box. The material hopper is arranged above the material box, and the inlet of the material hopper is communicated with the outlet of the feeding mechanism. The material hopper is provided with a weighing sensor, and the outlet of the material hopper is provided with a first control valve connected with the weighing sensor. The discharging mechanism comprises a pipeline, a disc stirrer and a first screw stirrer.
2. The dosing device according to claim 1, characterized in that The upper end of the pipeline is communicated with the outlet of the material hopper.
3. The dosing device according to claim 2, characterized in that The disc stirrer and the first screw stirrer are communicated with the outlet of the pipeline.
4. The dosing device of claim 2, wherein The material box, the feeding mechanism, the material hopper and the pipeline are one-to-one correspondingly communicated.
5. The dosing device of claim 1, wherein, The outlets of two pipelines are communicated with the inlet of the disc stirrer, and the outlets of the other two pipelines are communicated with the outlet of the disc stirrer.
6. The dosing device of claim 1, wherein, The outlet of the disc stirrer is communicated with the inlet of the first screw stirrer.
7. The dosing device of claim 1, wherein The discharging mechanism comprises a second screw stirrer arranged in the pipeline and close to the outlet of the material hopper.
8. The dosing device of claim 1, wherein, The feeding mechanism comprises a protective cover, a conveying belt arranged in the protective cover, a partition plate arranged on the conveying belt and a first motor arranged on the protective cover.
9. The dosing device of claim 8, wherein, The first motor is used for driving the conveying belt.
10. The dosing device of claim 9, wherein, The lower end of the conveying belt extends into the material box, and the upper end of the conveying belt extends into the material hopper. The utility model further comprises a supporting frame arranged at the lower part of the material hopper. The first screw stirrer forms an angle of 45-65 degrees with the vertical direction. The first screw stirrer comprises a shell, a screw stirring paddle arranged in the shell and a second motor arranged on the shell. The second motor is in transmission connection with the screw stirring paddle. The first screw stirrer comprises a second control valve arranged at the outlet of the shell. The distance between the second control valve and the lower end of the screw stirring paddle is a, and the length of the shell is b. 0.15b≤a≤0.25b.