Electronic-grade caustic soda filtering device

Abstract

The utility model discloses an electronic-grade caustic soda filtering device which comprises a conical-bottom filtering barrel, the conical-bottom filtering barrel is fixed on a support, a rotary filtering net is rotatably arranged in the conical-bottom filtering barrel, a secondary filtering net is detachably arranged in the rotary filtering net, a cover plate is arranged above the secondary filtering net in a covering mode, and the conical-bottom filtering barrel is fixed on the support. And a liquid inlet pipe is arranged on the cover plate through a universal joint rotating joint. According to the utility model, the rotary filter screen and the secondary filter screen which can rotate are arranged in the conical bottom filter barrel, so that the conical bottom filter barrel can be used for standing filtration and can also be driven by a gear to rotate for filtration, and the filtration modes are diversified; a liquid inlet pipe and a liquid outlet pipe are arranged on the conical bottom filter barrel, and a return filter pipe is connected between the liquid inlet pipe and the liquid outlet pipe, so that secondary filtration can be directly performed; and the liquid outlet pipe is connected with the water outlet pipe, so that liquid can be directly discharged during cleaning.

Description

Technical Field

[0001] This utility model relates to the field of caustic soda filtration technology, and in particular to an electronic-grade caustic soda filtration device. Background Technology

[0002] Electronic-grade caustic soda (also known as high-purity caustic soda) is an indispensable basic chemical material in the electronics industry and is widely used in high-end manufacturing fields such as semiconductors, liquid crystal displays, and solar cells.

[0003] In the production process of electronic-grade caustic soda, filtration is a crucial step to remove suspended solids, particulate impurities, and other fine contaminants from the solution. Traditional filtration devices suffer from the following problems:

[0004] Low filtration efficiency: Traditional filtration devices often use a single filter medium, which is difficult to effectively remove fine particles and suspended solids, resulting in substandard product purity.

[0005] Maintenance difficulties: Existing filtration devices are complicated and time-consuming to replace filter media or clean, which affects production efficiency.

[0006] Secondary filtration is difficult: During the filtration process, some filter media may require secondary filtration. When the filter is returned to the filter, new impurities will be introduced, causing secondary pollution. Utility Model Content

[0007] The main purpose of this invention is to provide an electronic-grade caustic soda filtration device, which aims to solve the technical problems of low filtration efficiency, difficult maintenance, and difficult secondary filtration in the existing technology.

[0008] To achieve the above objectives, this utility model provides an electronic-grade caustic soda filtration device, including a conical bottom filter barrel, which is fixed on a support. A rotating filter screen is rotatably installed inside the conical bottom filter barrel. A secondary filter screen is detachably installed inside the rotating filter screen. A cover plate is installed on the top of the secondary filter screen, and a liquid inlet pipe is installed on the cover plate through a universal joint swivel joint.

[0009] Furthermore, the bottom of the cone-bottom filter is provided with a liquid outlet pipe, and a return filter pipe is connected between the liquid outlet pipe and the liquid inlet pipe, and a return filter valve is installed on the return filter pipe.

[0010] Furthermore, a driven gear is provided at the edge of the rotating filter screen, and a driving gear meshes with the driven gear. The driving gear is mounted on the motor via a coupling, and the motor is mounted on the bracket via a motor frame.

[0011] Furthermore, an outlet valve is also connected to the outlet pipe, and the outlet valve is connected to the right side of the return filter pipe.

[0012] Furthermore, a water outlet pipe is also connected to the liquid outlet pipe, and the water outlet pipe is connected between the return filter pipe and the liquid outlet valve;

[0013] The water outlet pipe is equipped with a water outlet valve.

[0014] Furthermore, the cone-bottom filter barrel is provided with an annular slide rail;

[0015] The rotating filter screen is equipped with a slider that is adapted to the annular slide rail;

[0016] The rotating filter screen is rotatably installed inside the conical bottom filter barrel via a slide rail and a slider.

[0017] Furthermore, the bottom of the conical bottom filter barrel is equipped with a suspension, and the bottom of the rotating filter screen is rotatably mounted on the suspension via a rotating shaft.

[0018] Furthermore, a liquid discharge pump is installed on the liquid discharge pipe, and the liquid discharge pump is installed on the left side of the return filter pipe.

[0019] Furthermore, the secondary filter screen is detachably installed inside the rotating filter screen by screws.

[0020] The beneficial effects of this utility model are reflected in:

[0021] In this utility model, the conical bottom filter barrel is equipped with a rotatable rotating filter screen and a secondary filter screen, which can be used for static filtration or for rotating filtration driven by gears, providing multiple filtration methods.

[0022] The cone-bottom filter is equipped with an inlet pipe and an outlet pipe, and a return filter pipe is connected between the inlet pipe and the outlet pipe, which can be used for secondary filtration.

[0023] The liquid outlet pipe is connected to a water outlet pipe, so the liquid can be discharged directly during cleaning. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the filter assembly of this utility model;

[0026] Figure 3 This is an exploded structural diagram of the filter component of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Conical bottom filter barrel; 2. Suspension; 3. Rotary filter screen; 3a. Driven gear; 4. Secondary filter screen; 5. Cover plate; 6. Universal joint swivel joint; 7. Inlet pipe; 8. Outlet pipe; 9. Outlet pump; 10. Return filter pipe; 11. Outlet water pipe; 12. Return filter valve; 13. Outlet water valve; 14. Outlet valve; 15. Drive gear; 16. Motor; 17. Support frame. Detailed Implementation

[0029] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0032] See Figures 1 to 3 This utility model discloses an electronic-grade caustic soda filtration device, including a conical bottom filter barrel 1, which is fixed on a support 17. A rotating filter screen 3 is rotatably provided inside the conical bottom filter barrel 1. A secondary filter screen 4 is detachably installed inside the rotating filter screen 3. A cover plate 5 is installed on the top of the secondary filter screen 4. A liquid inlet pipe 7 is installed on the cover plate 5 through a universal joint swivel joint 6.

[0033] Working principle

[0034] During filtration, the waste liquid is passed through the inlet pipe into the secondary filter screen to filter out larger impurities;

[0035] The liquid that has passed through the two-stage filter flows into the rotating filter to remove smaller impurities;

[0036] When rotary filtration is required, start the motor, and the filter screen will rotate via gears to perform rotary filtration.

[0037] If the filtered liquid needs to be filtered again, it can be drawn back into the filter screen through the return filter tube for secondary filtration.

[0038] After filtration, if discharge is required, it can be discharged through the outlet pipe;

[0039] When the filter screen and filter canister need cleaning, the cleaning liquid can be discharged from the outlet pipe.

[0040] In some embodiments, see Figure 1 As shown, the bottom of the cone-bottom filter 1 is provided with a liquid outlet pipe 8, and a return filter pipe 10 is connected between the liquid outlet pipe 8 and the liquid inlet pipe 7. A return filter valve 12 is installed on the return filter pipe 10.

[0041] In some embodiments, see Figure 1 and 2 As shown, a driven gear 3a is provided at the edge of the rotating filter screen 3, and a drive gear 15 meshes around the driven gear 3a. The drive gear 15 is mounted on the motor 16 through a coupling, and the motor 16 is mounted on the bracket 17 through a motor frame.

[0042] In some embodiments, see Figure 3 As shown, the liquid outlet pipe 8 is also connected to a liquid outlet valve 14, which is connected to the right side of the return filter pipe 10.

[0043] In some embodiments, see Figure 1 As shown, a water outlet pipe 11 is also connected to the liquid outlet pipe 8, and the water outlet pipe 11 is connected between the return filter pipe 10 and the liquid outlet valve 14.

[0044] The water outlet pipe 11 is equipped with a water outlet valve 13.

[0045] In some embodiments, see Figure 2 As shown, the cone-bottom filter barrel 1 is equipped with an annular slide rail;

[0046] The rotating filter 3 is equipped with a slider that is adapted to the annular slide rail;

[0047] The rotating filter screen 3 is rotatably installed inside the conical bottom filter barrel 1 via a slide rail and a slider.

[0048] In some embodiments, see Figure 2 and 3 As shown, the bottom of the cone-bottom filter barrel 1 is equipped with a suspension 2, and the bottom of the rotating filter screen 3 is rotatably mounted on the suspension 2 via a rotating shaft.

[0049] In some embodiments, see Figure 1 As shown, the liquid outlet pipe 8 is equipped with a liquid outlet pump 9, which is installed on the left side of the return filter pipe 10.

[0050] In some embodiments, see Figure 3 As shown, the secondary filter 4 is detachably installed inside the rotating filter 3 by screws.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electronic-grade caustic soda filtration device, comprising a conical-bottom filter barrel (1), wherein the conical-bottom filter barrel (1) is fixed on a support (17), characterized in that, The cone-bottom filter barrel (1) is rotatably equipped with a rotating filter screen (3), and a secondary filter screen (4) is detachably installed inside the rotating filter screen (3). A cover plate (5) is installed on the top of the secondary filter screen (4), and an inlet pipe (7) is installed on the cover plate (5) through a universal joint swivel joint (6).

2. The electronic-grade caustic soda filtration device as described in claim 1, characterized in that, The bottom of the cone-bottom filter barrel (1) is provided with an outlet pipe (8), and a return filter pipe (10) is connected between the outlet pipe (8) and the inlet pipe (7). A return filter valve (12) is installed on the return filter pipe (10).

3. The electronic-grade caustic soda filtration device as described in claim 1, characterized in that, The rotating filter (3) is provided with a driven gear (3a) at its edge. A drive gear (15) meshes with the driven gear (3a) on its periphery. The drive gear (15) is mounted on a motor (16) via a coupling. The motor (16) is mounted on a bracket (17) via a motor frame.

4. The electronic-grade caustic soda filtration device as described in claim 2, characterized in that, The outlet pipe (8) is also connected to an outlet valve (14), which is connected to the right side of the return filter pipe (10).

5. The electronic-grade caustic soda filtration device as described in claim 4, characterized in that, The liquid outlet pipe (8) is also connected to a water outlet pipe (11), which is connected between the return filter pipe (10) and the liquid outlet valve (14); The outlet pipe (11) is equipped with an outlet valve (13).

6. The electronic-grade caustic soda filtration device as described in claim 1, characterized in that, The cone-bottom filter barrel (1) is equipped with an annular slide rail; The rotating filter (3) is provided with a slider that is adapted to the annular slide rail; The rotating filter screen (3) is rotatably installed inside the cone-bottom filter barrel (1) through the cooperation of the slide rail and the slider.

7. The electronic-grade caustic soda filtration device as described in claim 6, characterized in that, The bottom of the cone-bottom filter barrel (1) is equipped with a suspension (2), and the bottom of the rotating filter screen (3) is rotatably mounted on the suspension (2) via a rotating shaft.

8. The electronic-grade caustic soda filtration device as described in claim 5, characterized in that, The outlet pipe (8) is equipped with an outlet pump (9), which is installed on the left side of the return filter pipe (10).

9. The electronic-grade caustic soda filtration device as described in claim 1, characterized in that, The secondary filter (4) is detachably installed inside the rotating filter (3) by screws.

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