Photovoltaic wastewater fluorine and silicon removal treatment device

Abstract

The utility model provides a kind of photovoltaic wastewater defluorination and silicon removal processing device, it is related to the technical field of photovoltaic wastewater treatment, including reaction bucket and filter barrel, the top of the reaction bucket is close to being provided with feed pipe, the bottom side of the reaction bucket is also provided with discharge pipe, the bottom of the reaction bucket is close to being provided with grid assembly, the grid assembly and the bottom of the reaction bucket form settling zone between, the settling zone is connected with the filter barrel by pipeline;Filter pressure assembly is arranged in the filter barrel, the filter pressure assembly includes filter inner tube being arranged in the middle part of filter barrel and the pressing plate that can be moved to the direction of the filter inner tube, the bottom of the filter inner tube and the bottom of the filter barrel form liquid storage cavity between, the bottom of the filter barrel and the feed pipe between the reaction bucket are connected by pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic wastewater treatment, and more specifically, to a treatment device for removing fluoride and silicon from photovoltaic wastewater. Background Technology

[0002] Photovoltaic wastewater treatment refers to the process of treating and processing wastewater generated by the photovoltaic industry. The photovoltaic industry refers to the solar photovoltaic power generation industry, which generates a certain amount of wastewater during its production process. The purpose of photovoltaic wastewater treatment is to reduce environmental pollution and resource waste. Photovoltaic wastewater contains substances such as silicon and fluorine. When treating wastewater, agents are usually added to the wastewater to produce a chemical reaction, thereby removing silicon, fluorine, and other substances.

[0003] In existing technologies, when treating photovoltaic wastewater containing silicon and fluorine, it is necessary to add reagents to carry out a reaction. During the reaction, a large amount of flocculent material is generated. This flocculent material gradually accumulates and settles at the bottom during the treatment process, which seriously affects the treatment of wastewater. Utility Model Content

[0004] The purpose of this invention is to provide a treatment device for removing fluoride and silicon from photovoltaic wastewater, which can treat the flocculent matter generated during photovoltaic wastewater treatment, transfer the flocculent matter, reduce the impact of flocculent matter deposition on wastewater treatment, and achieve the technical effect of improving wastewater treatment efficiency.

[0005] This utility model is achieved through the following technical solution: it includes a reaction tank and a filter tank, a feed pipe is provided near the top of the reaction tank, a discharge pipe is provided on the bottom side of the reaction tank, a grid assembly is provided near the bottom of the reaction tank, a settling zone is formed between the grid assembly and the bottom of the reaction tank, and the settling zone is connected to the filter tank through a pipe.

[0006] The filter barrel is equipped with a filtration and pressure assembly, which includes an inner filter cylinder located in the middle of the filter barrel and a pressure plate that can move toward the inner filter cylinder. A liquid storage chamber is formed between the bottom of the inner filter cylinder and the bottom of the filter barrel.

[0007] To better realize this utility model, the grid assembly further includes a partition, a grid is provided in the middle of the partition, a retaining ring cylinder is also installed on the partition, the retaining ring cylinder is provided with a first arc-shaped mesh, a filter membrane is attached to the wall of the first arc-shaped mesh, and a gap is left between the retaining ring cylinder and the reaction tank.

[0008] It is also provided with an inner cylinder of the enclosure, which is attached to the inside of the enclosure ring cylinder. The inner cylinder of the enclosure is provided with a second arc-shaped grid. The inner cylinder of the enclosure can rotate so that the first arc-shaped grid and the second arc-shaped grid can be staggered or aligned with each other.

[0009] To better realize this utility model, the partition is further provided with an annular groove, the bottom of the inner cylinder of the enclosure can be inserted into the annular groove, and the top of the inner cylinder of the enclosure is provided with a rotating rod, which is placed above the reaction tank and extends towards the outer wall of the reaction tank.

[0010] To better realize this utility model, a bottom enclosure tube is further provided below the partition, and the bottom of the bottom enclosure tube is fixedly connected to the bottom of the reaction tank so as to form a settling zone inside the bottom enclosure tube.

[0011] A gap is left between the bottom cylinder of the enclosure and the inner wall of the reaction tank to form a drainage zone.

[0012] To better realize this utility model, the filter assembly further includes a drive motor, the output shaft of which is connected to a rotating lead screw, and the pressure plate is threaded onto the rotating lead screw so that the pressure plate can move toward the inner filter cylinder.

[0013] To better realize this utility model, the filter barrel wall is further provided with a groove, and the end of the filter inner cylinder is placed in the groove.

[0014] To better realize this utility model, a compression spring is further provided at the bottom of the groove, and the top of the compression spring is fixedly connected to the top of the filter cylinder.

[0015] The beneficial effects of this utility model are:

[0016] This invention features a reaction tank with a grid assembly that divides the tank into a settling zone and a discharge zone. During the reaction, flocculent wastewater is collected in the settling zone and transferred via pipes. The wastewater, after reacting with the reagents, is then transferred to the discharge zone through a surrounding ring. The remaining flocculent material, along with the wastewater, enters a filter tank for further separation, facilitating collection and subsequent treatment. This structure effectively separates and transfers flocculent material, reducing the impact of excessive flocculent material on the interaction between wastewater and reagents. The structure is simple, easy to operate, and improves wastewater treatment efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the reaction vessel provided by this utility model;

[0019] Figure 2 A cross-sectional view of the reaction vessel provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure of the grille assembly provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the filter barrel provided by this utility model;

[0022] Figure 5 A cross-sectional view of the filter bucket provided by this utility model;

[0023] icon:

[0024] 100-Reaction tank, 110-Grid assembly, 111-Baffle, 112-Grid, 113-Enclosure ring cylinder, 114-First arc-shaped grid, 115-Inner enclosure cylinder, 116-Second arc-shaped grid, 117-Annular groove, 118-Rotating rod, 119-Bottom enclosure cylinder, 120-Settling zone, 130-Drainage zone, 200-Filter tank, 201-Groove, 202-Compression spring, 210-Inner filter cylinder, 220-Pressure plate, 230-Storage chamber, 240-Drive motor, 241-Rotating screw. Detailed Implementation

[0025] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] This invention provides a treatment device for defluorination and desiliconization of photovoltaic wastewater. In the prior art, when treating photovoltaic wastewater containing silicon and fluoride, it is necessary to add reagents for reaction. During the reaction, a large amount of flocculent matter is generated, which gradually accumulates and settles at the bottom, seriously affecting the treatment of wastewater. In order to solve the above-mentioned technical problems, this invention optimizes the structure of the treatment device to treat the flocculent matter generated during the reaction, allowing the flocculent matter to be transferred, thereby reducing its impact on the reaction and improving the efficiency of wastewater treatment.

[0028] like Figures 1-5As shown, the photovoltaic wastewater defluorination and desiliconization treatment device mainly includes a reaction tank 100 and a filter tank 200. The reaction tank 100 and the filter tank 200 are connected by a pipe. The structure of the reaction tank 100 is described as follows: the reaction tank 100 has a barrel-shaped structure. A grid assembly 110 is set near the bottom of the reaction tank 100. A settling zone 120 is formed between the grid assembly 110 and the bottom of the reaction tank 100. The settling zone 120 is used to collect the flocculent material generated during the reaction process. After the flocculent material gradually forms and has a certain weight, it begins to settle. The settling will gradually fall into the settling zone 120, which is specifically achieved through the grid assembly 110.

[0029] The structure of the grille assembly 110 is as follows: Figure 3 As shown, the main components include a partition 111, with a grid 112 structure in the middle of the partition 111 to facilitate the falling of flocculent material from the grid 112 and its deposition in the settling zone 120. In the initial reaction process, after the wastewater is added, a portion of the wastewater will directly enter the settling zone 120. The defluorination or desiliconization agent is added to the reaction tank 100 to allow for a full reaction. During the reaction, flocculent material is continuously generated and deposited, resulting in more flocculent material accumulating in the settling zone 120, while the wastewater is above the flocculent material. To ensure a full reaction, a stirrer can be installed in the reaction tank 100. This stirrer is not shown in this view. It can be a structure commonly used in the prior art, such as a stirring blade installed on a stirring shaft. The stirring shaft is rotated by a drive motor 240 to achieve the purpose of stirring and mixing the wastewater and the agent.

[0030] Additionally, a retaining ring cylinder 113 is installed above the partition 111. This retaining ring cylinder 113 is as follows: Figure 1 As shown in .2.3, the enclosure ring cylinder 113 is provided with an arc-shaped mesh section, and a filter membrane is attached to the wall of the arc-shaped mesh. The filter membrane is a conventional separation membrane, which allows water to pass through but prevents flocculent matter from passing through. In addition, an enclosure inner cylinder 115 is also provided, which is also provided with an arc-shaped mesh section. During the full reaction of wastewater and reagent, the arc-shaped meshes of the enclosure ring cylinder 113 and the enclosure inner cylinder 115 are staggered to prevent the wastewater from flowing out of the reaction zone formed in the reaction tank 100 (that is, the area inside the enclosure inner cylinder 115 is the reaction zone). During and after the reaction, the flocculent matter gradually settles and falls into the settling zone 120. When the arc-shaped meshes of the enclosure ring cylinder 113 and the enclosure inner cylinder 115 are rotated to their opposite positions, the wastewater can overflow and flow to the bottom of the reaction tank 100. Then, the reacted wastewater is transferred out through the discharge pipe at the bottom side of the reaction tank 100.

[0031] In order to better install the inner cylinder 115 of the enclosure, an upward annular groove 117 is provided on the partition 111. The bottom of the inner cylinder 115 of the enclosure can be inserted into the annular groove 117. In addition, in order to facilitate the rotation of the inner cylinder 115 of the enclosure, a rotating rod 118 is provided on the top of the inner cylinder 115 of the enclosure. As shown in the figure, the rotating rod 118 is positioned above the reaction tank 100 and extends towards the outer wall of the reaction tank 100, so that the operator can manually rotate the inner cylinder 115 of the enclosure.

[0032] As shown in the figure, the first arc-shaped mesh 114 can be one-quarter of the enclosure ring cylinder 113. There may be one or more first arc-shaped meshes 114. In this utility model, one is selected. The second arc-shaped mesh 116 can be one-third of the enclosure inner cylinder 115 and is arranged adjacent to the first arc-shaped mesh 114. In this way, only a slight rotation of a small part is needed to align the first arc-shaped mesh 114 and the second arc-shaped mesh 116. Separation membranes are installed on both the first arc-shaped mesh 114 and the second arc-shaped mesh 116, which can effectively prevent fibrous materials from passing through the mesh.

[0033] The settling zone 120 is formed by setting a bottom enclosure cylinder 119 below the partition 111. Specifically, the bottom of the bottom enclosure cylinder 119 is fixedly connected to the bottom of the reaction tank 100. The settling zone 120 is formed at the bottom of the grid 112, the bottom enclosure cylinder 119, and the reaction tank 100, where the flocculent material after the reaction will be deposited.

[0034] There is also a gap between the bottom cylinder 119 of the enclosure and the bottom of the reaction tank 100, forming a drainage area 130. When the second arc-shaped grid 116 of the inner cylinder 115 of the enclosure is aligned with the first arc-shaped grid 114 of the ring cylinder 113 of the enclosure, the wastewater will gradually flow out from the grid strips and enter the drainage area 130, and then be discharged through the discharge pipe.

[0035] The purpose of setting up the drainage zone 130 is to facilitate the drainage of wastewater and to separate wastewater from flocculent matter, thereby facilitating subsequent wastewater treatment.

[0036] The flocculent wastewater deposited in the settling zone 120 is transferred to the filter tank 200 through a pipeline. A filtration pressure assembly is installed in the filter tank 200. The filtration pressure assembly includes an inner filter cylinder 210 installed in the filter tank 200 and a pressure plate 220 that can move towards the inner filter cylinder 210. Specifically, a groove 201 is provided in the wall of the filter tank 200, the end of the inner filter cylinder 210 is placed in the groove 201, and a compression spring 202 is also provided between the bottom of the inner filter cylinder 210 and the bottom of the groove 201, so that the inner filter cylinder 210 can have a certain downward buffering effect.

[0037] The pressure plate 220 can move into the filter inner cylinder 210 by setting a drive motor 240. The output shaft of the drive motor 240 is connected to a transmission screw. The pressure plate 220 is threaded onto the rotating screw 241. Under the action of the drive motor 240, the pressure plate 220 can gradually press down and act on the flocculent wastewater, so that the flocculent can be squeezed out to squeeze out excess wastewater. The squeezed flocculent forms a clump, which is easy to transfer for subsequent flocculent treatment.

[0038] The workflow of this utility model is as follows:

[0039] The mesh of the enclosure ring cylinder 113 and the enclosure inner cylinder 115 is staggered, so that the enclosure inner cylinder 115 forms a reaction zone with an opening at the top. Wastewater and reagents are added through the feed pipe. After the wastewater and reagents react fully, flocculent matter is gradually formed. The flocculent matter gradually accumulates and settles in the settling zone 120, while the wastewater after the reaction is above the flocculent matter.

[0040] When the mesh of the enclosure ring cylinder 113 and the enclosure inner cylinder 115 is aligned by rotating the rotating rod 118, the wastewater in the reaction zone will gradually flow out through the enclosure inner cylinder 115 and the enclosure ring cylinder 113, gradually leaving a drainage area 130, and then the wastewater will be transferred out through the discharge pipe.

[0041] The wastewater containing flocculent material is transferred through a pipeline to the inner filter cylinder 210 of the filter tank 200. Under the action of the drive motor 240, the pressure plate 220 is gradually pressed down, squeezing the wastewater out of the filter screen at the bottom of the inner filter cylinder 210. Finally, the flocculent material accumulates on the filter screen of the inner filter cylinder 210, and the flocculent material is collected to facilitate subsequent treatment. The filtered wastewater remains in the liquid storage chamber 230, and can also be transferred through a pipeline to the feed pipe above the reaction tank 100 so that it can re-enter the reaction.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A treatment device for defluorination and desiliconization of photovoltaic wastewater, characterized in that, The system includes a reaction tank (100) and a filter tank (200). A feed pipe is provided near the top of the reaction tank (100), and a discharge pipe is provided on the bottom side of the reaction tank (100). A grid assembly (110) is provided near the bottom of the reaction tank (100). A settling zone (120) is formed between the grid assembly (110) and the bottom of the reaction tank (100). The settling zone (120) is connected to the filter tank (200) through a pipe. The filter barrel (200) is provided with a filtration pressure assembly, which includes a filter inner cylinder (210) disposed in the middle of the filter barrel (200) and a pressure plate (220) that can move toward the filter inner cylinder (210). A liquid storage chamber (230) is formed between the bottom of the filter inner cylinder (210) and the bottom of the filter barrel (200).

2. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 1, characterized in that, The grid assembly (110) includes a partition (111), a grid (112) is provided in the middle of the partition (111), and a retaining ring cylinder (113) is also installed on the partition (111). The retaining ring cylinder (113) is provided with a first arc-shaped grid (114), and a filter membrane is attached to the wall of the first arc-shaped grid (114). A gap is left between the retaining ring cylinder (113) and the reaction tank (100). It is also provided with an inner cylinder (115) for the enclosure, which is attached to the inner cylinder (113) for the enclosure. The inner cylinder (115) for the enclosure is provided with a second arc-shaped grid (116). The inner cylinder (115) for the enclosure is rotatable so that the first arc-shaped grid (114) and the second arc-shaped grid (116) can be staggered or aligned with each other.

3. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 2, characterized in that, The partition (111) is provided with an annular groove (117), the bottom of the inner cylinder (115) of the enclosure can be inserted into the annular groove (117), and the top of the inner cylinder (115) of the enclosure is provided with a rotating rod (118), the rotating rod (118) is placed above the reaction tank (100) and extends towards the outer wall of the reaction tank (100).

4. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 3, characterized in that, Below the partition (111) is a bottom enclosure cylinder (119), the bottom of which is fixedly connected to the bottom of the reaction tank (100) so that a settling zone (120) is formed inside the bottom enclosure cylinder (119). A gap is left between the bottom cylinder of the enclosure (119) and the inner wall of the reaction tank (100) to form a drainage zone (130).

5. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 4, characterized in that, The filter assembly also includes a drive motor (240), the output shaft of which is connected to a rotating lead screw (241), and the pressure plate (220) is threaded onto the rotating lead screw (241) so that the pressure plate (220) can move toward the filter inner cylinder (210).

6. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 5, characterized in that, The filter barrel (200) has a groove (201) on its wall, and the end of the filter inner cylinder (210) is placed in the groove (201).

7. The photovoltaic wastewater defluorination and desiliconization treatment device according to claim 6, characterized in that, A compression spring (202) is provided at the bottom of the groove (201), and the top of the compression spring (202) is fixedly connected to the top of the filter cylinder.

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