Material mixing device for photocatalyst
By designing a photocatalyst material mixing device with a composite blade assembly and a spiral blade structure, the problem of particle aggregation caused by uneven stirring in photocatalyst production was solved, thereby improving mixing efficiency and catalytic activity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-06
AI Technical Summary
In existing photocatalyst production processes, the use of blades with fixed positions and shapes cannot effectively shear and stir, leading to the aggregation or agglomeration of titanium dioxide particles, which affects specific surface area, pore structure and catalytic activity.
A material mixing device for photocatalysts was designed, which adopts a composite blade assembly, including first and second rotating drums, equipped with arc-shaped blades and a ratchet structure. The rotation speed is controlled by resistance, providing helical force and horizontal stirring, avoiding violent particle collisions, and combining helical blades and stirring blades to achieve uniform mixing.
This effectively avoids particle aggregation, increases the specific surface area and catalytic activity of the photocatalyst, and improves mixing efficiency and quality.
Smart Images
Figure CN223969828U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photocatalysts, specifically to a material mixing device for photocatalysts. Background Technology
[0002] Photocatalysts are substances that can accelerate chemical reactions under light conditions. They are usually semiconductor materials. When light shines on the surface of a photocatalyst, photons with sufficiently high energy, usually ultraviolet or visible light, will excite electrons in the photocatalyst from the valence band to the conduction band, forming electron-hole pairs. These excited-state charge carriers are used to catalyze the reaction. At the same time, electrons combine with oxygen molecules in the conduction band to generate superoxide anions, while holes can oxidize water or organic matter to generate hydroxyl radicals. These are strong oxidants. Therefore, photocatalysts are commonly used in fields such as degrading organic pollutants, air purification, antibacterial and bactericidal effects, and photocatalytic water splitting to produce hydrogen.
[0003] The production process of photocatalysts typically involves multiple steps, including synthesis, processing, and post-processing. Different types of photocatalysts, such as titanium dioxide and tungsten dioxide, have different production methods, but most photocatalyst production processes involve several key steps, including sol-gel methods, vapor deposition methods, hydrothermal synthesis methods, high-temperature solid-state methods, and microwave-assisted synthesis methods. In the synthesis of these photocatalysts, stirring is a crucial operation, especially in sol-gel and precipitation methods.
[0004] Existing photocatalysts typically use fixed-position and fixed-shape blades for stirring during the production process. However, this type of blade cannot generate effective shear and stirring forces on the photocatalyst solution in the spatial layer. During the synthesis of photocatalysts, especially in the formation stage of titanium dioxide sol or gel, uneven or excessive stirring can easily lead to the aggregation or agglomeration of titanium dioxide particles, forming larger particles, which in turn affects the specific surface area, pore structure, and catalytic activity of the photocatalyst. Summary of the Invention
[0005] In view of this, the purpose of this application is to propose a material mixing device for photocatalysts, in order to solve the technical problem that the stirring of existing photocatalysts in the production process usually uses blades with fixed positions and fixed shapes. Such blades cannot form effective shear and stirring forces on the solution for generating photocatalysts in the spatial layer, which leads to the aggregation or agglomeration of titanium dioxide particles, forming larger particles, and thus affecting the specific surface area, pore structure and catalytic activity of the photocatalyst.
[0006] To achieve the above objectives, this application provides a photocatalyst material mixing device, including a base, a tank for filling photocatalyst materials is mounted on the base, a motor is mounted on the top of the tank, and a stirring mechanism for mixing the photocatalyst materials is provided inside the tank.
[0007] The stirring mechanism includes a straight rod, a fixed sleeve is fitted on the straight rod, and multiple sets of assembly cylinders are installed at equal intervals on the surface of the fixed sleeve. An inner cavity is opened inside the assembly cylinder, and a composite blade assembly is rotatably installed inside the inner cavity.
[0008] The composite blade assembly includes a first rotating cylinder, and the surface of the first rotating cylinder is provided with multiple sets of arc-shaped blades;
[0009] The first rotating cylinder has a docking post at one end, and a bearing fixed inside the inner cavity is assembled at one end of the docking post. A fixing ring fixed inside the inner cavity is provided on one side of the bearing. A ratchet is fixed on the docking post. Two mounting strips are provided on the surface of the fixing ring. A locking strip and a spring are respectively installed on the two mounting strips. The locking strip meshes with the outer side of the ratchet, and the spring is attached to the surface of the locking strip.
[0010] Preferably, the composite blade assembly further includes a second rotating cylinder, the surface of which is provided with multiple sets of arc-shaped blades facing opposite directions.
[0011] Preferably, a plug is fixedly fitted to one end of the second rotating drum.
[0012] Preferably, the other end of the second rotating drum is equipped with a ratchet facing the opposite direction, and a retaining ring that matches the ratchet is located inside the front end of the first rotating drum.
[0013] Preferably, the surface of the straight rod is provided with helical blades spiraling around its axis, and multiple sets of stirring blades are also provided at equal intervals at the bottom of the straight rod, with a sensor fixedly installed at the bottom end of the stirring blades.
[0014] Preferably, a centrifugal pump connected to the inside of the tank is fixedly installed on the surface of the base, and a liquid outlet pipe is fixedly installed at the output end of the centrifugal pump, with a pressure valve bolted onto the liquid outlet pipe.
[0015] Preferably, the surface of the tank is fixedly provided with a feed inlet that communicates with the inside of the tank.
[0016] Preferably, the tank body is provided with a connecting pipe that communicates with the outside.
[0017] Preferably, the bottom of the motor is provided with a mounting base that is fixed to the top of the tank.
[0018] Preferably, a coupling is connected to the top end of the straight rod, and the coupling is fixedly installed inside the mounting base.
[0019] The beneficial effects of this application are:
[0020] This application involves feeding the material for making photocatalysts into the tank, and then starting the motor to provide the power required for the stirring mechanism to operate. As the motor drives the straight rod to rotate, the assembly cylinder mounted on the straight rod begins to drive the composite blade assembly to rotate. During the rotation of the composite blade assembly, the arc-shaped blades on the surface of the first rotating cylinder are resisted by the liquid material. At the same time, the ratchet at one end of the first rotating cylinder, together with the fixing ring fixed in the inner cavity, can cause the first rotating cylinder to stutter during rotation, avoiding excessive rotation speed of the first rotating cylinder, which would cause violent collisions of the gel particles inside the material. The arc-shaped blades on the first rotating cylinder can provide a spiral force in the horizontal direction when rotating, which can better send the gel particles inside the material floating on the liquid surface to the bottom of the material, so that the gel particles are evenly distributed throughout the tank. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of this application;
[0023] Figure 2 This is an internal perspective view of the tank in this application;
[0024] Figure 3 This is a schematic diagram of the stirring mechanism structure of this application;
[0025] Figure 4 This is a schematic diagram of the composite blade assembly structure of this application;
[0026] Figure 5 This is a schematic diagram of the retaining ring and bearing structure of this application;
[0027] Figure 6 The retaining ring and ratchet of this application;
[0028] Figure 7 The straight rod and coupling of this application;
[0029] The numbers on the map are:
[0030] 1. Base; 11. Centrifugal pump; 12. Discharge pipe; 13. Pressure valve; 2. Tank body; 21. Inlet; 22. Connecting pipe; 3. Motor; 31. Mounting base; 4. Stirring mechanism; 41. Straight rod; 411. Spiral blade; 412. Coupling; 42. Stirring blade; 421. Sensor; 43. Fixing sleeve; 431. Assembly cylinder; 432. Inner cavity; 44. Composite blade assembly; 441. First rotating cylinder; 442. Second rotating cylinder; 443. Arc-shaped blade; 444. Cylinder plug; 445. Connecting column; 446. Bearing; 447. Fixing ring; 4471. Mounting strip; 4472. Clamping strip; 4473. Spring; 448. Ratchet. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments.
[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0033] To further understand this application, a detailed description of this application will be provided below with reference to the accompanying drawings.
[0034] Combination Figure 1 and Figures 3-6 This application provides a photocatalyst material mixing device, including a base 1, a tank 2 for filling photocatalyst material is mounted on the base 1, a motor 3 is mounted on the top of the tank 2, and a stirring mechanism 4 for mixing the photocatalyst material is provided inside the tank 2.
[0035] The stirring mechanism 4 includes a straight rod 41, a fixed sleeve 43 is sleeved on the straight rod 41, and multiple sets of assembly cylinders 431 are installed at equal intervals on the surface of the fixed sleeve 43. An inner cavity 432 is opened inside the assembly cylinder 431, and a composite blade assembly 44 is rotatably installed inside the inner cavity 432.
[0036] The composite blade assembly 44 includes a first rotating cylinder 441, and the surface of the first rotating cylinder 441 is provided with multiple sets of arc-shaped blades 443.
[0037] The first rotating drum 441 has a docking post 445 at one end, and a bearing 446 fixed inside the inner cavity 432 is mounted on one end of the docking post 445. A fixing ring 447 fixed inside the inner cavity 432 is provided on one side of the bearing 446. A ratchet 448 is fixed on the docking post 445. Two mounting strips 4471 are provided on the surface of the fixing ring 447. A retaining strip 4472 and a spring piece 4473 are respectively mounted on the two mounting strips 4471. The retaining strip 4472 meshes with the outer side of the ratchet 448, and the spring piece 4473 is attached to the surface of the retaining strip 4472.
[0038] In this embodiment, the material for making photocatalyst is first put into the tank 2. The material is in liquid state. Then, the motor 3 is started to provide the power required for the stirring mechanism 4 to run. As the motor 3 drives the straight rod 41 to rotate, the assembly cylinder 431 installed on the straight rod 41 begins to drive the composite blade assembly 44 to rotate.
[0039] Secondly, during the rotation of the composite blade assembly 44, the arc-shaped blades 443 on the surface of the first rotating drum 441 are resisted by the liquid material, and the first rotating drum 441 is rotated by this resistance. The bearing 446 in the inner cavity 432 of the assembly cylinder 431 can prevent the first rotating drum 441 from being blocked during rotation. At the same time, the ratchet 448 at one end of the first rotating drum 441, together with the fixing ring 447 fixed in the inner cavity 432, can make the first rotating drum 441 stutter during rotation, avoiding the first rotating drum 441 rotating too fast, which would cause the gel particles inside the material to collide violently. The arc-shaped blades 443 on the first rotating drum 441 can provide a spiral force in the horizontal direction when rotating, which can better send the gel particles inside the material floating on the liquid surface to the bottom of the material, so that the gel particles are evenly distributed in all parts of the tank 2.
[0040] When the motor 3 outputs in reverse, the locking strip 4472 on one side of the fixed ring 447 can lock the ratchet 448, so that the first rotating drum 441 stops rotating. At this time, the arc-shaped blade 443 on the surface of the first rotating drum 441 can be prevented from continuing to rotate, thereby disturbing the mixed material.
[0041] Combination Figure 4 The composite blade assembly 44 further includes a second rotating cylinder 442, the surface of which is provided with multiple sets of arc-shaped blades 443 in opposite directions;
[0042] In this embodiment, when the motor 3 outputs in the reverse direction, the arc-shaped blades 443 on the surface of the second rotating drum 442, which face opposite directions to the arc-shaped blades 443 on the surface of the first rotating drum 441, can rotate, thereby better spreading the gel particles inside the material evenly to the surrounding area.
[0043] Combination Figure 4 The second rotating drum 442 is fixedly fitted with a cylinder plug 444 at one end;
[0044] In this embodiment, the plug 444 at one end of the second rotating drum 442 can prevent material from flowing into the interior of the second rotating drum 442. The end of the second rotating drum 442 where the plug 444 is installed can be equipped with the first rotating drum 441 or the second rotating drum 442 with the same structure as described above. The crowded and lengthened composite blade group 44 allows for reasonable stirring operations to be performed according to the actual usage situation during the mixing of photocatalyst materials.
[0045] Combination Figure 4 The other end of the second rotating drum 442 is equipped with a ratchet 448 facing opposite directions, and a retaining ring 447 that matches the ratchet 448 is located inside the front end of the first rotating drum 441.
[0046] In this embodiment, the ratchet 448, which is mounted at the other end of the second drum 442 and is in the opposite direction to the ratchet 448, can be used to keep the second drum 442 stationary during the positive output of the motor 3, so as to avoid the rotation of the second drum 442 affecting the mixing operation of the first drum 441.
[0047] Combination Figure 3 The surface of the straight rod 41 is provided with spiral blades 411 spirally wound around its axis, and multiple sets of stirring blades 42 are also provided at equal intervals at the bottom of the straight rod 41. A sensor 421 is fixedly provided at the bottom end of the stirring blades 42.
[0048] In this embodiment, the spiral blades 411 allow the material to flow into the bottom of the tank 2 during mixing. Combined with the horizontal mixing of the first rotating drum 441, this accelerates the mixing rate of the photocatalyst material. When the motor 3 reverses, the spiral blades 411 cause the material to surge upwards. Combined with the second rotating drum 442, this further improves the mixing quality of the photocatalyst material. The stirring blades 42 are used to stir the material that has settled to the bottom. The sensor 421 below it can be used to sense the rotation speed of the straight rod 41, thereby reasonably controlling the output power of the motor 3.
[0049] Combination Figure 1 A centrifugal pump 11, which is connected to the inside of the tank 2, is fixedly installed on the surface of the base 1. A liquid outlet pipe 12 is fixedly installed at the output end of the centrifugal pump 11, and a pressure valve 13 is bolted on the liquid outlet pipe 12.
[0050] In this embodiment, the centrifugal pump 11 and the outlet pipe 12 are used to extract the already mixed photocatalyst solution inside the tank 2, while the pressure valve 13 is used to observe the flow rate at the outlet pipe 12.
[0051] Combination Figure 1 The surface of the tank body 2 is fixedly provided with a feed inlet 21 that communicates with the inside of the tank body 2;
[0052] In this embodiment, the materials required for making photocatalyst can be fed into the tank 2 through the feed inlet 21.
[0053] Combination Figure 2 The tank body 2 is provided with a connecting pipe 22 that communicates with the outside.
[0054] In this embodiment, the connecting pipe 22 can continuously provide other auxiliary materials during the material mixing process, further improving the quality of photocatalyst molding.
[0055] Combination Figure 3 The motor 3 is provided with a mounting base 31 fixed to the top of the tank body 2 at its bottom end;
[0056] In this embodiment, the mounting base 31 is used to fix the motor 3 and reduce the vibration of the motor 3 during operation.
[0057] Combination Figure 7 The top end of the straight rod 41 is connected to a coupling 412, which is fixedly installed inside the mounting base 31.
[0058] In this embodiment, the coupling 412 allows the straight rod 41 to rotate synchronously with the rotor of the motor 3, avoiding a speed difference between the motor 3 and the straight rod 41, which would reduce the output utilization of the motor 3.
[0059] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this application as described above, which are not provided in the details for the sake of brevity.
[0060] This application is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A photocatalyst material mixing device, characterized by comprising: a mixing container; a stirring device; a photocatalyst material supply device; and a photocatalyst material discharge device. Including base, the base is equipped with the jar body for filling photocatalyst material, the jar body top is equipped with motor, the jar body inside is provided with the stirring mechanism for mixing photocatalyst material, The stirring mechanism includes a straight rod, a fixed sleeve is sleeved on the straight rod, a plurality of assembly cylinders are installed on the surface of the fixed sleeve at equal intervals, an inner cavity is formed in the assembly cylinder, and a plurality of composite blade groups are rotatably installed in the inner cavity; The composite blade group includes a first rotating cylinder, and a plurality of arc-shaped leaves are arranged on the surface of the first rotating cylinder; One end of the first rotating cylinder is provided with a butt joint column, a bearing is fixedly arranged in the inner cavity at one end of the butt joint column, a fixed ring is arranged in the inner cavity at one side of the bearing, a ratchet wheel is fixedly arranged on the butt joint column, two installation strips are arranged on the surface of the fixed ring, a clamping strip and a spring sheet are respectively arranged on the two installation strips, the clamping strip is engaged with the outside of the ratchet wheel, and the spring sheet is attached to the surface of the clamping strip.
2. The photocatalyst material mixing device according to claim 1, wherein The composite blade group also includes a second rotating cylinder, and a plurality of arc-shaped leaves with opposite directions are arranged on the surface of the second rotating cylinder.
3. The photocatalyst material mixing device according to claim 2, wherein One end of the second rotating cylinder is fixedly provided with a cylinder plug.
4. The photocatalyst material mixing device according to claim 2, wherein The other end of the second rotating cylinder is provided with a ratchet wheel with opposite directions, and a fixed ring matched with the ratchet wheel is arranged in the inner side of the front end of the first rotating cylinder.
5. The photocatalyst material mixing device according to claim 1, wherein The surface of the straight rod is provided with a spiral blade spirally arranged around the axis, and a plurality of stirring leaves are arranged at equal intervals at the bottom of the straight rod, and a sensor is fixedly arranged at the bottom end of the stirring leaf.
6. The photocatalyst material mixing device according to claim 1, wherein A centrifugal pump is fixedly arranged on the surface of the base and communicated with the inside of the jar body, an outlet pipe is fixedly arranged at the output end of the centrifugal pump, and a pressure valve is bolted on the outlet pipe.
7. The photocatalyst material mixing device according to claim 1, wherein A feeding port is fixedly arranged on the surface of the jar body and communicated with the inside of the jar body.
8. The photocatalyst material mixing device according to claim 1, wherein A communication pipe is arranged in the jar body and communicated with the outside.
9. The photocatalyst material mixing device according to claim 8, wherein The bottom end of the motor is provided with a mounting seat fixedly arranged at the top end of the jar body.
10. The photocatalyst material mixing device according to claim 9, wherein A coupling is connected to the top end of the straight rod and fixedly arranged in the mounting seat.