Hydrothermal reaction device for preparing photocatalyst

Abstract

The utility model relates to a hydrothermal reaction device for photocatalyst preparation, which belongs to the technical field of photocatalyst preparation and comprises a reaction kettle, a rotating frame is rotatably mounted on the inner bottom wall of the reaction kettle, a separation mesh barrel is slidably mounted at the top of the rotating frame, and the rotating frame comprises a bottom plate rotatably mounted on the inner bottom wall of the reaction kettle. According to the hydrothermal reaction device for preparing the photocatalyst, the rotatable rotating frame is arranged in the reaction kettle, and the separation net barrel is slidably mounted at the top of the rotating frame, so that when the rotating frame rotates, the separation net barrel can be driven to rotate, various raw materials react in the separation net barrel, and after the reaction is completed, liquid is discharged; the fixed substance is left in the separation net barrel, and the separation net barrel is taken out from the top, so that solid-liquid separation is realized, and the problem that the reactants need to be filtered, subjected to solid-liquid separation and then subjected to subsequent operation after the hydrothermal reaction and the reactants are output in a common hydrothermal reaction device for preparing the photocatalyst is solved.

Description

Technical Field

[0001] This utility model relates to the field of photocatalyst preparation technology, specifically a hydrothermal reaction device for photocatalyst preparation. Background Technology

[0002] Photocatalysis is based on the photoelectric effect of semiconductor materials. When a semiconductor material is irradiated with light of energy greater than its band gap, electrons in the valence band are excited to the conduction band, forming photogenerated electrons, while photogenerated holes are left in the valence band. These photogenerated electrons and holes are highly chemically reactive and can undergo redox reactions with substances adsorbed on the semiconductor surface, thereby accelerating the chemical reaction. The light source provides the energy to excite the semiconductor material to generate photogenerated electrons and holes. Commonly used light sources include ultraviolet lamps, visible light lamps, and sunlight. The semiconductor catalyst, as the core of the photocatalytic reaction, needs to possess a suitable band gap and good stability.

[0003] BiOF (bismuth oxyfluoride) photocatalyst is a promising material for photocatalysis. BiOF is a semiconductor material that can be used in photocatalytic applications based on environmental remediation. BiOF can be prepared through precipitation and subsequent heat treatment. The mechanochemical method is a low-cost, environmentally friendly, efficient, and highly controllable synthesis method, allowing for greater design possibilities in the material's structure and properties, and facilitating industrial production. BiOF exhibits high photocatalytic performance in degrading common organic pollutants. BiOF nanosheets can degrade 79.3% of Rhodamine B under 60 minutes of UV irradiation, while commercial rutile TiO2 can only degrade 33.7% of RhB.

[0004] In common hydrothermal reaction devices for photocatalyst preparation, after the hydrothermal reaction is carried out and the reactants are output, the reactants need to be filtered to separate the solid and liquid components before subsequent operations can be performed. In view of this, this application proposes a hydrothermal reaction device for photocatalyst preparation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a hydrothermal reaction apparatus for photocatalyst preparation, which has advantages such as separating fixed substances in the reaction vessel. It solves the problem that in common hydrothermal reaction apparatuses for photocatalyst preparation, after the hydrothermal reaction is carried out and the reactants are output, it is necessary to filter the reactants to separate the solid and liquid substances before proceeding with subsequent operations.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrothermal reaction apparatus for the preparation of photocatalysts, comprising a reaction vessel, wherein a rotating frame is rotatably mounted on the inner bottom wall of the reaction vessel, and a separation mesh bucket is slidably mounted on the top of the rotating frame;

[0007] The rotating frame includes a rotating base plate rotatably mounted on the bottom wall of the reactor. Four L-shaped support plates are fixedly installed around the rotating base plate, and limit strips are fixedly installed on the inner side wall of the L-shaped support plates.

[0008] Furthermore, four limiting plates are fixedly installed on the outer side of the separating net barrel, and a limiting groove adapted to the limiting strip is opened on one side of the limiting plate.

[0009] Furthermore, a mounting shaft is fixedly installed on the inner bottom wall of the separating net barrel, and four disturbance blades are fixedly installed on the surface of the mounting shaft.

[0010] Furthermore, a rotating motor is fixedly installed at the bottom of the reactor, and the output shaft of the rotating motor is fixedly connected to the bottom of the rotating base plate.

[0011] Furthermore, the top flange of the reactor is connected to a top cover, a feed pipe is fixedly installed on the top of the top cover, and a discharge pipe is fixedly installed on the bottom of the reactor. Both the feed pipe and the discharge pipe are equipped with control valves.

[0012] Furthermore, a support leg is fixedly installed at the bottom of the reactor, and a support base plate is fixedly installed at the bottom of the support leg.

[0013] Furthermore, an insulating shell is fixedly installed on the surface of the reactor, and a heating tube is fixedly installed between the reactor and the insulating shell.

[0014] Furthermore, a limit ring is fixedly installed on the top of the separating net barrel, and a handle is fixedly installed on the top of the limit ring.

[0015] Compared with the prior art, this utility model provides a hydrothermal reaction device for the preparation of photocatalysts, which has the following beneficial effects:

[0016] This hydrothermal reaction apparatus for photocatalyst preparation uses a rotatable frame inside the reactor. A separation screen is slidably mounted on top of the frame. As the frame rotates, it drives the separation screen to rotate as well. Various raw materials react inside the separation screen. After the reaction is complete, the liquid is discharged, while the solids remain inside the separation screen. The separation screen is then removed from the top, achieving solid-liquid separation. This solves the problem in common hydrothermal reaction apparatuses for photocatalyst preparation where, after the hydrothermal reaction and the output of the reactants, the reactants need to be filtered for solid-liquid separation before subsequent operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a top view of the separating mesh bucket of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the rotating frame of this utility model.

[0021] In the diagram: 1. Reactor; 2. Rotating frame; 21. Rotating base plate; 22. L-shaped support plate; 23. Limiting strip; 3. Separating mesh bucket; 31. Limiting plate; 32. Limiting groove; 4. Mounting shaft; 5. Disturbing blades; 6. Rotating motor; 7. Top cover; 8. Feed pipe; 9. Discharge pipe; 10. Support leg; 11. Supporting base plate; 12. Insulated outer shell; 13. Heating tube; 14. Limiting ring; 15. Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4 A hydrothermal reaction apparatus for the preparation of photocatalysts includes a reaction vessel 1, a rotating frame 2 rotatably mounted on the inner bottom wall of the reaction vessel 1, and a separation mesh barrel 3 slidably mounted on the top of the rotating frame 2.

[0024] The rotating frame 2 includes a rotating base plate 21 rotatably mounted on the bottom wall of the reactor 1. Four L-shaped support plates 22 are fixedly installed around the rotating base plate 21, and limit strips 23 are fixedly installed on the inner sidewalls of the L-shaped support plates 22. A separation mesh 3 is inserted into the rotating frame 2, and the reactants are placed into the separation mesh 3 for hydrothermal reaction. After the reaction is complete, the separation mesh 3 is removed, allowing the solidified substances in the reactants to be extracted, thus completing solid-liquid separation.

[0025] Secondly, four limiting plates 31 are fixedly installed on the outside of the separating net barrel 3. One side of the limiting plate 31 has a limiting groove 32 that matches the limiting strip 23. Through the cooperation of the limiting groove 32 and the limiting strip 23, the separating net barrel 3 is locked inside the rotating frame 2. When the rotating frame 2 rotates, it drives the separating net barrel 3 to rotate.

[0026] Meanwhile, a mounting shaft 4 is fixedly installed on the inner bottom wall of the separating net barrel 3, and four disturbance blades 5 are fixedly installed on the surface of the mounting shaft 4.

[0027] A rotary motor 6 is fixedly installed at the bottom of the reactor 1, and the output shaft of the rotary motor 6 is fixedly connected to the bottom of the rotating base plate 21. The rotary motor 6 drives the rotating frame 2 to rotate, drives the separation screen 3 to rotate, and drives the four agitator blades 5 to rotate, stirring the reactants and improving the reaction effect.

[0028] Meanwhile, the top flange of the reactor 1 is connected to the top cover 7, the top of the top cover 7 is fixedly installed with the feed pipe 8, and the bottom of the reactor 1 is fixedly installed with the discharge pipe 9. Both the feed pipe 8 and the discharge pipe 9 are equipped with control valves.

[0029] Among them, the bottom of the reactor 1 is fixedly installed with a support leg 10, and the bottom of the support leg 10 is fixedly installed with a support base plate 11.

[0030] Meanwhile, an insulating outer shell 12 is fixedly installed on the surface of the reactor 1. The insulating outer shell 12 has an internal insulation layer for heat preservation. A heating tube 13 is fixedly installed between the reactor 1 and the insulating outer shell 12. The reactor 1 is heated by the heating tube 13 to carry out a hydrothermal reaction.

[0031] Among them, a limit ring 14 is fixedly installed on the top of the separation net barrel 3, and a handle 15 is fixedly installed on the top of the limit ring 14.

[0032] In this embodiment, the separation screen 3 is installed inside the rotating frame 2. The limiting groove 32 and the limiting strip 23 cooperate to make the separation screen 3 stuck inside the rotating frame 2. The reactants are put into the separation screen 3 through the feed pipe 8. The rotating motor 6 drives the rotating frame 2 to rotate, which in turn drives the separation screen 3 to rotate, which in turn drives the four agitator blades 5 to rotate, stirring the reactants and improving the reaction effect. After the reaction is completed, the separation screen 3 is lifted out through the handle 15, and the solidified substance remains inside the separation screen 3, thus completing the solid-liquid separation.

[0033] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control functions, and the existing publicly available power connection technologies are not described in detail in the text.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrothermal reaction apparatus for the preparation of photocatalysts, comprising a reaction vessel (1), characterized in that: The inner bottom wall of the reactor (1) is rotatably mounted with a rotating frame (2), and the top of the rotating frame (2) is slidably mounted with a separation mesh bucket (3); The rotating frame (2) includes a rotating base plate (21) rotatably mounted on the bottom wall of the reactor (1). Four L-shaped support plates (22) are fixedly installed around the rotating base plate (21). Limiting strips (23) are fixedly installed on the inner side wall of the L-shaped support plates (22).

2. The hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: Four limiting plates (31) are fixedly installed on the outside of the separating net barrel (3), and a limiting groove (32) adapted to the limiting strip (23) is opened on one side of the limiting plate (31).

3. The hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: The inner bottom wall of the separation net barrel (3) is fixedly installed with a mounting shaft (4), and four disturbance blades (5) are fixedly installed on the surface of the mounting shaft (4).

4. The hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: A rotating motor (6) is fixedly installed at the bottom of the reactor (1), and the output shaft of the rotating motor (6) is fixedly connected to the bottom of the rotating base plate (21).

5. A hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: The top flange of the reactor (1) is connected to a top cover (7), and a feed pipe (8) is fixedly installed on the top of the top cover (7). A discharge pipe (9) is fixedly installed at the bottom of the reactor (1). Control valves are provided on both the feed pipe (8) and the discharge pipe (9).

6. The hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: The bottom of the reactor (1) is fixedly equipped with a support leg (10), and the bottom of the support leg (10) is fixedly equipped with a support base plate (11).

7. A hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: A heat-insulating shell (12) is fixedly installed on the surface of the reactor (1), and a heating tube (13) is fixedly installed between the reactor (1) and the heat-insulating shell (12).

8. A hydrothermal reaction apparatus for photocatalyst preparation according to claim 1, characterized in that: A limiting ring (14) is fixedly installed on the top of the separating net barrel (3), and a handle (15) is fixedly installed on the top of the limiting ring (14).

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