Bismuth vanadate photocatalyst preparation device

Abstract

The utility model relates to the technical field of renewable energy sources, in particular to a bismuth vanadate photocatalyst preparation device. The utility model aims to solve the problems of low wastewater treatment efficiency and high cost of the marine pressure rising station in the prior art. A bismuth vanadate photocatalyst preparation device comprises a heating furnace, a quadrangular frustum pyramid is arranged above the heating furnace, a ventilation opening is formed in the top of the quadrangular frustum pyramid in a penetrating mode, an observation opening is formed in the side wall of one side of the quadrangular frustum pyramid in a penetrating mode, a shell is arranged below the heating furnace, a reaction tank for bearing drawers is fixedly connected to the inner wall of the shell, a feeding door is installed on one side of the shell, and a clamping groove is formed in the side wall of the other side of the shell. The steel mesh is placed above the reaction tank through the clamping grooves in an attached contact mode. The bismuth vanadate photocatalyst which is supplied with power by an external power supply and prepared by the device is used for purifying domestic sewage of workers of an offshore booster station. According to the device, the ultraviolet and bismuth vanadate photocatalyst technology is utilized, efficient and low-cost wastewater treatment is achieved, meanwhile, the catalyst preparation efficiency is improved, and the wide application range is achieved.

Description

Technical Field

[0001] This utility model relates to the field of renewable energy technology, and in particular to a device for preparing bismuth vanadate photocatalysts. Background Technology

[0002] With the increasing severity of the global energy crisis and environmental pollution, the development of clean and renewable energy has become an urgent priority. Offshore wind power, as a clean energy source, has enormous development potential. Meanwhile, the wastewater from offshore substations is complex in composition, highly toxic, and poorly degradable, making it unsuitable for long-term storage and impacting the working environment of substation staff. Therefore, developing photocatalytic materials capable of degrading various organic pollutants is particularly important. Bismuth vanadate (BiVO4), as a material with excellent photocatalytic properties, has demonstrated superior degradation efficiency and stability in wastewater treatment.

[0003] In summary, there is an urgent need to design a bismuth vanadate photocatalyst preparation device to utilize the high degradation efficiency and stability of bismuth vanadate (BiVO4) in wastewater treatment, thereby improving the wastewater treatment efficiency of offshore wind farm substations and protecting the surrounding marine environment. Utility Model Content

[0004] This invention aims to solve the problems of low efficiency and high cost in wastewater treatment at offshore substations. To address the difficulties in wastewater treatment at offshore wind farm substations, a bismuth vanadate photocatalyst preparation device is designed. This device can improve the wastewater treatment efficiency and energy utilization efficiency of offshore wind farm substations, which is of great significance for the environmental friendliness of offshore wind farms.

[0005] To solve the above problems, this application provides the following technical solution:

[0006] An apparatus for preparing bismuth vanadate photocatalyst includes a heating furnace, with a truncated square topped by the furnace. A ventilation opening is provided through the top of the truncated square, and an observation port is provided through one side wall of the truncated square.

[0007] Below the heating furnace is the shell, and the inner wall of the shell is fixedly connected to the reaction tank with a support tray. A feeding door is installed on one side of the shell, and a slot is provided on the other side wall of the shell. The steel mesh is placed above the reaction tank through the slot.

[0008] The feeding door is rotatably connected to the side wall of the housing via multiple hinges.

[0009] A steel mesh handle is fixedly connected to the steel mesh, which is used to load block-shaped hydrotalcite.

[0010] The reaction tank is provided with a groove for placing the reaction raw materials.

[0011] The bottom of the heating furnace is also equipped with a heating port, which is connected to the heating device.

[0012] The mesh size of the steel mesh is 0.5~1.5cm.

[0013] An ultraviolet lamp is also installed on the inner wall of the shell above the steel mesh.

[0014] The frustum is formed by cutting off the top of a pyramid.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The entire device is easy to operate and maintain. By setting up the steel mesh 1041 and the steel mesh handle 1043, the reaction rate between the hydrotalcite and caustic soda can be easily controlled, preventing violent reactions during calcination that could cause caustic soda to splash and corrode the side wall of the heating furnace.

[0017] 2. This device can observe the internal reaction in real time by setting up an observation port 102 and a ventilation port 103. The ventilation port can effectively cool the high-temperature calcined material, reduce the cooling waiting time, and improve the efficiency of producing bismuth vanadate catalyst.

[0018] 3. This device utilizes ultraviolet lamp 107 to deposit bismuth vanadate on the surface of hydrotalcite. This modification treatment enhances the dispersibility of bismuth vanadate, thereby improving the surface activity and catalytic degradation efficiency of the photocatalyst. Photocatalytic degradation of organic pollutants reduces secondary pollution and protects the aquatic environment. Attached Figure Description

[0019] Appendix Figure 1 This is a top-view schematic diagram of the bismuth vanadate photocatalyst preparation device.

[0020] Appendix Figure 2 This is a schematic diagram of the feeding gate of the bismuth vanadate photocatalyst preparation device.

[0021] Appendix Figure 3 This is a schematic diagram of the internal structure of the shell of the bismuth vanadate photocatalyst preparation device.

[0022] Appendix Figure 4 This is a schematic diagram of the support drawer structure.

[0023] Figure reference numerals: heating furnace 1, feeding door 101, observation port 102, ventilation port 103, support drawer 104, steel mesh 1041, reaction tank 1042, steel mesh handle 1043, heating port 105, shell 106, ultraviolet lamp 107. Detailed Implementation

[0024] It should be understood that the terms "above," "top," "one side," "below," "inner wall," "other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Furthermore, the description of this invention is merely a preferred embodiment and is not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

[0026] The heating device connected to the ultraviolet lamp 107 and the heating port 105 is powered by an external power source.

[0027] Example 1

[0028] like Figures 1-4 As shown, an apparatus for preparing bismuth vanadate photocatalyst includes a heating furnace 1, a truncated square above the heating furnace 1, a ventilation opening 103 penetrating through the top of the truncated square, and an observation port 102 penetrating through one side wall of the truncated square.

[0029] Below the heating furnace 1 is a shell 106. The inner wall of the shell 106 is fixedly connected to the reaction tank 1042 with the support drawer 104. A feeding door 101 is installed on one side of the shell 106, and a slot is provided on the other side wall of the shell 106. The steel mesh 1041 is placed above the reaction tank 1042 through the slot.

[0030] The feeding door 101 is rotatably connected to the side wall of the housing 106 via multiple hinges.

[0031] A steel mesh handle 1043 is fixedly connected to the steel mesh 1041, and the steel mesh 1041 is used to load block-shaped hydrotalcite.

[0032] The reaction tank 1042 is provided with a groove for placing the reaction raw materials.

[0033] The bottom of the heating furnace 1 is also provided with a heating port 105, which is connected to the heating device.

[0034] The mesh size of 1041 steel mesh is 0.5~1.5cm.

[0035] An ultraviolet lamp 107 is also provided on the inner wall of the shell 106 above the steel mesh 1041.

[0036] A truncated pyramid is formed by cutting off the top of a pyramid. The heating port 105 is located at the center of the bottom of the heating furnace 1.

[0037] The hydroxy acid is methyl benzoate, the sodium hydroxide is 40 wt%-50 wt%, the bismuth source is bismuth nitrate, and the pH adjuster is vanadium acid. Powdered hydrotalcite has an excessively fast reaction rate, which is detrimental to controlling the reaction rate. Therefore, blocky hydrotalcite is preferred, with a particle size larger than the pore size of the 1041 steel mesh.

[0038] Preparation method of bismuth vanadate photocatalyst:

[0039] S1. Open the feeding door 101, add caustic soda to the reaction tank 1042, load block-shaped hydrotalcite onto the steel mesh 1041, then close the feeding door 101, turn on the heating device connected to the heating port 105, slowly pull out the steel mesh 1041 to evenly add the hydrotalcite into the caustic soda, react for 2-3 hours, then calcine at high temperature for 2 hours, turn off the heating device, open the feeding door 101, and after the heating furnace 1 cools to room temperature, add bismuth nitrate and methyl benzoate to the reaction tank 1042, and adjust the pH to 7-8 with vanadium acid.

[0040] S2. Turn on the UV lamp 107. Under UV irradiation, bismuth vanadate is deposited on the surface of the hydrotalcite to synthesize a bismuth vanadate photocatalyst.

[0041] The prepared bismuth vanadate photocatalyst was directly added to the wastewater, and under ultraviolet light catalysis, the bismuth vanadate photocatalyst degraded the organic pollutants in the wastewater into carbon dioxide and water.

[0042] Bismuth vanadate (BiVO4) photocatalysts are used to treat wastewater. Utilizing the photocatalytic properties of bismuth vanadate, organic pollutants in water are effectively degraded.

[0043] An apparatus for preparing bismuth vanadate photocatalysts is disclosed. This apparatus involves preparing a hydrotalcite-supported bismuth vanadate photocatalyst, comprising high-temperature calcination modification of hydrotalcite, organic carboxylic acids, and deposition of bismuth vanadate on the surface of the hydrotalcite. This modification process enhances the dispersibility of bismuth vanadate, improves its adsorption capacity and the separation efficiency of photogenerated carriers, thereby enhancing photocatalytic activity and catalytic degradation efficiency.

[0044] Furthermore, this device achieves the reduction of graphene oxide and the composite of bismuth vanadate and graphene through ultraviolet light irradiation, further enhancing the visible light activity of the photocatalyst and its performance in photocatalytic degradation of organic pollutants. This composite photocatalyst exhibits excellent performance in photocatalytic degradation of organic pollutants and shows promising application prospects in the environmental protection field.

[0045] By utilizing the photocatalytic activity of bismuth vanadate, highly oxidizing hydroxyl radicals are generated under light irradiation, which can effectively mineralize organic pollutants in wastewater and convert them into harmless carbon dioxide and water. The design of the device takes into account the catalyst loading issue.

[0046] A device for preparing bismuth vanadate photocatalysts is disclosed, which utilizes photocatalysis technology to prepare high-efficiency bismuth vanadate photocatalysts, achieving efficient and in-depth treatment of wastewater, and has significant environmental and economic benefits.

[0047] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A bismuth vanadate photocatalyst preparation apparatus, comprising a heating furnace (1), characterized in that, The heating furnace (1) is topped with a truncated quadrangular prism, with a ventilation opening (103) penetrating through the top of the truncated quadrangular prism and an observation opening (102) penetrating through one side wall of the truncated quadrangular prism. Below the heating furnace (1) is the shell (106), and the inner wall of the shell (106) is fixedly connected to the reaction tank (1042) with the support drawer (104). A feeding door (101) is installed on one side of the shell (106), and a slot is provided on the other side wall of the shell (106). The steel mesh (1041) is placed above the reaction tank (1042) through the slot.

2. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, The feeding door (101) is rotatably connected to the side wall of the housing (106) by multiple hinges.

3. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, A steel mesh handle (1043) is fixedly connected to the steel mesh (1041), and the steel mesh (1041) is used to load blocky hydrotalcite.

4. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, The reaction tank (1042) is provided with a groove for placing reaction raw materials.

5. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, The bottom of the heating furnace (1) is also provided with a heating port (105), which is connected to the heating device.

6. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, The mesh size of the steel mesh (1041) is 0.5~1.5cm.

7. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, An ultraviolet lamp (107) is also provided on the inner wall of the shell (106) above the steel mesh (1041).

8. The apparatus for preparing bismuth vanadate photocatalyst according to claim 1, characterized in that, The frustum is formed by cutting off the top of a pyramid.

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