A cleaning device for high-salinity wastewater membrane banks

Abstract

The utility model provides a kind of for high salt wastewater membrane group's cleaning device, including pickling unit, first feeding adjusting assembly, caustic cleaning unit, second feeding adjusting assembly, water washing unit and matched control system.Pickling tank is communicated with wastewater membrane group by first communication pipeline;First feeding adjusting assembly is connected with pickling tank, for quantitative addition cleaning material in pickling tank, and the material in pickling tank is stirred;Caustic cleaning tank is communicated with wastewater membrane group by second communication pipeline;Second feeding adjusting assembly is connected with caustic cleaning tank, for quantitative addition cleaning material in caustic cleaning tank, and the material in caustic cleaning tank is stirred;Water washing unit includes water washing tank, and water washing tank is communicated with wastewater membrane group by third communication pipeline;A kind of for high salt wastewater membrane group's cleaning device provided by the utility model, to be able to solve the problem that membrane group cleaning uses cleaning liquid PH value regulation is not accurate in prior art, leading to the problem of poor cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of membrane cleaning devices for high-salt wastewater, and specifically relates to a cleaning device for membrane modules in high-salt wastewater. Background Technology

[0002] In pharmaceutical and chemical production, various synthetic reactions generate high-salinity wastewater. Membrane separation technology is commonly used in high-salinity wastewater treatment processes, utilizing the differences in the selective permeability of membranes to different components in the wastewater to separate, purify, and concentrate target substances. Currently, commonly used membrane separation technologies include ultrafiltration, microfiltration, nanofiltration, and reverse osmosis, used to remove salts, suspended solids (SS), and colloids (COD) from wastewater. In practical applications, due to the high salinity of various membranes, the retention of Ca²⁺ in the wastewater... + Over time, the accumulation of heavy metals and inorganic salt ions can cause partial blockage of the membrane pores, affecting the membrane module's rejection rate and flux. Therefore, the membrane module needs to be cleaned regularly.

[0003] In existing technologies, the cleaning process for various membrane modules typically involves acid washing, alkaline washing, and water washing. However, due to varying levels of skill and experience among on-site operators, issues such as inaccurate pH adjustment and non-standard cleaning cycle counts can occur, leading to poor cleaning results. Furthermore, non-standard cleaning processes can severely impact membrane lifespan, increase wastewater investment and operating costs, and result in poor practicality. Utility Model Content

[0004] This invention provides a cleaning device for membrane modules used in high-salt wastewater treatment, which aims to solve the problem of inaccurate pH adjustment of the cleaning solution used in membrane module cleaning in the prior art, resulting in poor cleaning effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a cleaning device for membrane modules used in high-salt wastewater treatment, comprising:

[0006] A pickling unit includes a pickling tank, which is connected to a wastewater membrane assembly via a first connecting pipe.

[0007] The first feeding adjustment component is connected to the pickling tank and is used to add cleaning material to the pickling tank in a quantitative manner and to stir the material in the pickling tank.

[0008] The alkaline washing unit includes an alkaline washing tank, which is connected to the wastewater membrane assembly via a second connecting pipe.

[0009] The second feeding adjustment component is connected to the alkaline washing tank and is used to add a quantitative amount of cleaning material to the alkaline washing tank and to stir the material in the alkaline washing tank.

[0010] The washing unit includes a washing tank, which is connected to the wastewater membrane assembly via a third connecting pipe.

[0011] A matching control system.

[0012] In one possible implementation, the first feeding adjustment component includes:

[0013] A vacuum feeding structure is installed at the upper end of the pickling tank for quantitatively adding cleaning material into the pickling tank;

[0014] A dissolving and stirring assembly includes a stirring shaft and stirring blades. The stirring shaft is rotatably disposed in the pickling tank, and multiple stirring blades are provided, with each stirring blade spaced apart on the stirring shaft.

[0015] A water injection assembly is located at the upper end of the pickling tank and is used to inject water into the pickling tank.

[0016] A spray structure is installed in the pickling tank and connected to the outlet of the water injection component, for uniformly spraying water into the pickling tank.

[0017] In one possible implementation, the spray structure is a spray pipe.

[0018] In one possible implementation, the first feeding adjustment component further includes a level gauge disposed at the upper end of the pickling tank.

[0019] In one possible implementation, the first feeding adjustment component further includes a pH meter disposed on the pickling tank.

[0020] In one possible implementation, the second feeding adjustment component has the same structure as the first feeding adjustment component.

[0021] In one possible implementation, a dissolution baffle is fixed in the pickling tank.

[0022] In one possible implementation, a first control valve is provided on the first connecting pipeline, a second control valve is provided on the second connecting pipeline, and a third control valve is provided on the third connecting pipeline. The first control valve, the second control valve, and the third control valve are all connected to the control system.

[0023] The beneficial effects of the cleaning device for membrane modules in high-salt wastewater provided by this utility model are as follows: Compared with the prior art, the acid washing unit includes an acid washing tank, and a first feeding adjustment component is connected to the acid washing tank for quantitatively adding cleaning material to the acid washing tank and stirring the material in the acid washing tank. The alkaline washing unit includes an alkaline washing tank, and a second adjustment component is connected to the alkaline washing tank for quantitatively adding cleaning material to the alkaline washing tank and stirring the material in the alkaline washing tank. A matching control system is also provided to control the amount of cleaning material added by the first feeding adjustment component and the second feeding adjustment component, thereby ensuring the accuracy of the pH value of the cleaning solution formed in the acid washing tank and the alkaline washing tank. The pickling tank is connected to the wastewater membrane module through a first connecting pipeline, and the alkaline washing tank is connected to the wastewater membrane module through a second connecting pipeline. The wastewater membrane module is cleaned by the cleaning solutions in the pickling tank and the alkaline washing tank. Then, water is supplied to the wastewater membrane module through the water washing tank to wash the wastewater membrane module. This ensures the cleaning effect of the wastewater membrane module, extends the service life of the wastewater membrane module, saves production costs, and has good practicality. Attached Figure Description

[0024] Figure 1 A schematic diagram of a cleaning device for a membrane module used in high-salt wastewater, provided in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the application structure of a cleaning device for a membrane module used in high-salt wastewater, provided as an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Pickling unit; 11. Pickling tank; 12. First control valve; 13. Dissolving baffle; 14. Maintenance ladder; 20. First feeding adjustment assembly; 21. Vacuum feeding structure; 22. Dissolving and stirring assembly; 221. Stirring shaft; 222. Stirring propeller; 223. Drive motor; 23. Water injection assembly; 24. Spray structure; 25. Level gauge; 26. pH meter; 30. Alkali washing unit; 31. Alkali washing tank; 32. Second control valve; 40. Water washing unit; 41. Water washing tank; 42. Third control valve; 50. Weighing module. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" 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 this utility model 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 this utility model.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0032] Please refer to the following: Figure 1 and Figure 2 This invention provides a cleaning device for high-salinity wastewater membrane modules. The cleaning device includes an acid washing unit 10, a first feeding adjustment component 20, an alkaline washing unit 30, a second feeding adjustment component, a water washing unit 40, and a corresponding control system. The acid washing unit 10 includes an acid washing tank 11, which is connected to the wastewater membrane module via a first connecting pipe. The first feeding adjustment component 20 is connected to the acid washing tank 11 and is used to quantitatively add cleaning material to the acid washing tank 11 and stir the material in the acid washing tank 11. The alkaline washing unit 30 includes an alkaline washing tank 31, which is connected to the wastewater membrane module via a second connecting pipe. The second feeding adjustment component is connected to the alkaline washing tank 31 and is used to quantitatively add cleaning material to the alkaline washing tank 31 and stir the material in the alkaline washing tank 31. The water washing unit 40 includes a water washing tank 41, which is connected to the wastewater membrane module via a third connecting pipe.

[0033] In this embodiment, the first feeding adjustment component 20 is connected to the pickling tank 11 and is used to quantitatively add cleaning material to the pickling tank 11 and stir the material in the pickling tank 11. The pickling tank 11 is connected to the wastewater membrane group through a first connecting pipe, so that the cleaning solution in the pickling tank 11 is guided to the wastewater membrane group for cleaning through the first connecting pipe. Similarly, the second adjustment component is connected to the alkaline washing tank 31 and is used to quantitatively add cleaning material to the alkaline washing tank 31 and stir the material in the alkaline washing tank 31. The alkaline washing tank 31 is connected to the wastewater membrane group through a second connecting pipe, so that the cleaning solution in the alkaline washing tank 31 is guided to the wastewater membrane group for cleaning through the second connecting pipe. Then, water is supplied to the wastewater membrane group through the water washing tank 41 for water washing of the wastewater membrane group. At the same time, a matching control system is also provided to control the amount of cleaning material added by the first feeding adjustment component 20 and the second feeding adjustment component, so as to ensure the accuracy of the pH value of the cleaning solution.

[0034] This utility model provides a cleaning device for membrane modules used in high-salt wastewater treatment. Compared with the prior art, the acid washing unit 10 includes an acid washing tank 11, and a first feeding adjustment component 20 connected to the acid washing tank 11 for quantitatively adding cleaning material to the acid washing tank 11 and stirring the material in the acid washing tank 11. The alkaline washing unit 30 includes an alkaline washing tank 31, and a second adjustment component connected to the alkaline washing tank 31 for quantitatively adding cleaning material to the alkaline washing tank 31 and stirring the material in the alkaline washing tank 31. A matching control system is also provided to control the amount of cleaning material added by the first feeding adjustment component 20 and the second feeding adjustment component, thereby ensuring the accuracy of the pH value of the cleaning solution formed in the acid washing tank 11 and the alkaline washing tank 31. The pickling tank 11 is connected to the wastewater membrane module through the first connecting pipeline, and the alkaline washing tank 31 is connected to the wastewater membrane module through the second connecting pipeline. Thus, the wastewater membrane module is cleaned by the cleaning solution in the pickling tank 11 and the alkaline washing tank 31. Then, water is introduced to the wastewater membrane module through the water washing tank 41 to wash the wastewater membrane module, ensuring the cleaning effect of the wastewater membrane module, extending the service life of the wastewater membrane module, saving production costs, and having good practicality.

[0035] In some embodiments, please refer to Figure 1The first feeding and regulating component 20 includes a vacuum feeding structure 21, a dissolving and stirring component 22, a water injection component 23, and a spraying structure 24. The vacuum feeding structure 21 is located at the upper end of the pickling tank 11 and is used to quantitatively add cleaning material to the pickling tank 11. The dissolving and stirring component 22 includes a stirring shaft 221 and stirring paddles 222. The stirring shaft 221 is rotatably mounted in the pickling tank 11, and multiple stirring paddles 222 are provided, spaced apart on the stirring shaft 221. The water injection component 23 is located at the upper end of the pickling tank 11 and is used to inject water into the pickling tank 11. The spraying structure 24 is located in the pickling tank 11 and is connected to the outlet of the water injection component 23, used to evenly spray water into the pickling tank 11.

[0036] In this embodiment, a vacuum feeding structure 21 is installed at the upper end of the pickling tank 11. The vacuum feeding structure 21 quantitatively adds cleaning material to the pickling tank 11, controlling the amount of cleaning material added. A spray structure 24 is installed in the pickling tank 11 and is connected to the outlet of the water injection component 23, thereby uniformly spraying water into the pickling tank 11. A stirring shaft 221 is also rotatably installed in the pickling tank 11. Multiple stirring paddles 222 are installed on the stirring shaft 221, spaced apart. The stirring shaft 221 drives the stirring paddles 222 to rotate, stirring the materials (cleaning material and water) in the pickling tank 11, accelerating the dissolution of the cleaning material and ensuring uniform mixing of the cleaning material and water.

[0037] Specifically, the dissolving and stirring assembly 22 also includes a drive motor 223, the power output end of which is connected to the stirring shaft 221, and the stirring shaft 221 is driven to rotate by the drive motor 223.

[0038] In some embodiments, please refer to Figure 1 The spray structure 24 consists of spray pipes. A spray pipe is a piping system used for uniformly spraying liquids (such as water, chemical solutions, coolants, etc.). A spray pipe typically includes a main pipe, nozzles, fixtures, and connectors. The main pipe is the primary conduit for transporting the liquid; materials can include PVC, stainless steel, carbon steel, PP plastic, etc. Nozzles are installed on the pipe and determine the spray pattern (fan-shaped, cone-shaped, atomized, etc.). Fixtures are used to secure the spray pipes and prevent vibration or displacement. Connectors (such as flanges, threaded joints, quick-connect clamps, etc.) facilitate the installation and maintenance of the main pipe.

[0039] In some embodiments, please refer to Figure 1 The first feeding adjustment component 20 also includes a level gauge 25, which is located at the upper end of the pickling tank 11. In this embodiment, the level gauge 25 is used to monitor the liquid level in the pickling tank 11 in real time to prevent liquid overflow.

[0040] In some embodiments, please refer to Figure 1 The first feeding adjustment component 20 also includes a pH meter 26 installed on the pickling tank 11. In this embodiment, the pH meter 26 is used to measure the pH value of the liquid in the pickling tank 11, and can monitor whether the pickling solution meets the cleaning standards.

[0041] In some embodiments, please refer to Figure 1 The second feeding adjustment component has the same structure as the first feeding adjustment component 20.

[0042] In some embodiments, please refer to Figure 1 A dissolving baffle 13 is fixedly installed in the pickling tank 11. In this embodiment, the dissolving baffle 13 is fixedly installed on the inner wall of the pickling tank 11. The dissolving baffle 13 cooperates with the stirring propeller 222 to form an internal vortex in the pickling tank 11, which accelerates the dissolution and mixing of materials.

[0043] In some embodiments, please refer to Figure 2 A first control valve 12 is provided on the first connecting pipeline, a second control valve 32 is provided on the second connecting pipeline, and a third control valve 42 is provided on the third connecting pipeline. All three control valves are connected to a control system. In this embodiment, the first, second, and third connecting pipelines are controlled by the first, second, and third control valves, respectively, and since all three are connected to the control system, automated control can be achieved.

[0044] In some embodiments, please refer to Figure 1 The cleaning device for high-salt wastewater membrane modules provided in this embodiment of the utility model also includes a weighing module 50. There are two weighing modules 50, which are respectively arranged below the acid washing tank 11 and the alkaline washing tank 31, and are used to weigh the acid washing tank 11 and the alkaline washing tank 31.

[0045] In some embodiments, please refer to Figure 1 The pickling tank 11 is also equipped with a maintenance ladder 14.

[0046] 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 and improvements 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. A cleaning device for membrane modules used in high-salt wastewater treatment, characterized in that, include: A pickling unit includes a pickling tank, which is connected to a wastewater membrane assembly via a first connecting pipe. The first feeding adjustment component is connected to the pickling tank and is used to add cleaning material to the pickling tank in a quantitative manner and to stir the material in the pickling tank. The alkaline washing unit includes an alkaline washing tank, which is connected to the wastewater membrane assembly via a second connecting pipe. The second feeding adjustment component is connected to the alkaline washing tank and is used to add a quantitative amount of cleaning material to the alkaline washing tank and to stir the material in the alkaline washing tank. The washing unit includes a washing tank, which is connected to the wastewater membrane assembly via a third connecting pipe. A matching control system.

2. The cleaning device for membrane modules used in high-salinity wastewater as described in claim 1, characterized in that, The first feeding adjustment component includes: A vacuum feeding structure is installed at the upper end of the pickling tank for quantitatively adding cleaning material into the pickling tank; A dissolving and stirring assembly includes a stirring shaft and stirring blades. The stirring shaft is rotatably disposed in the pickling tank, and multiple stirring blades are provided, with each stirring blade spaced apart on the stirring shaft. A water injection assembly is located at the upper end of the pickling tank and is used to inject water into the pickling tank. A spray structure is installed in the pickling tank and connected to the outlet of the water injection component, for uniformly spraying water into the pickling tank.

3. The cleaning device for membrane modules used in high-salt wastewater as described in claim 2, characterized in that, The spray structure is a spray pipe.

4. The cleaning device for membrane modules used in high-salinity wastewater as described in claim 2, characterized in that, The first feeding adjustment component also includes a level gauge, which is located at the upper end of the pickling tank.

5. A cleaning device for membrane modules used in high-salinity wastewater as described in claim 2, characterized in that, The first feeding adjustment component also includes a pH meter installed on the pickling tank.

6. A cleaning device for membrane modules used in high-salinity wastewater as described in any one of claims 2-5, characterized in that, The second feeding adjustment component has the same structure as the first feeding adjustment component.

7. A cleaning device for membrane modules used in high-salinity wastewater as described in claim 2, characterized in that, The pickling tank is equipped with a dissolution baffle.

8. A cleaning device for membrane modules used in high-salinity wastewater as described in claim 1, characterized in that, A first control valve is provided on the first connecting pipeline, a second control valve is provided on the second connecting pipeline, and a third control valve is provided on the third connecting pipeline. The first control valve, the second control valve, and the third control valve are all connected to the control system.

Images