Acetic acid separation and recovery device

Abstract

The application provides an acetic acid separation and recovery device, which comprises the following steps: filtering liquid through a filtering assembly; connecting a recovery assembly and the filtering assembly through a pipeline; arranging a first water pump; arranging the pipeline between the recovery assembly and the filtering assembly on the liquid inlet end and the liquid outlet end of the first water pump respectively; arranging a reverse osmosis membrane in the recovery assembly; conveying the liquid output by the filtering assembly to the reverse osmosis membrane through the pipeline; and arranging a cleaning assembly in the recovery assembly, and lifting and lowering the cleaning assembly relative to the recovery assembly to clean the recovery assembly. The filtering assembly is used for multi-stage filtration, and the reverse osmosis membrane is used for filtering impurities and salt in waste liquid, so that the purity and recovery efficiency of acetic acid are improved. After filtration, the recovery assembly and the reverse osmosis membrane are cleaned through the cleaning assembly. During the cleaning process, the cleaning efficiency is improved by cleaning different positions of the reverse osmosis membrane by driving the cleaning assembly to change the angle relative to the recovery assembly.

Description

Technical Field

[0001] This application relates to an acetic acid recovery device, and more particularly to an acetic acid separation and recovery device. Background Technology

[0002] Acetic acid is a common organic acid with the chemical formula CH3COOH. It has a sour taste and a pungent odor and is widely used in food processing, the chemical industry, and pharmaceuticals. In many industrial processes, acetic acid is used as a solvent, catalyst, or intermediate.

[0003] Reverse osmosis membranes are a commonly used technology for acetic acid recovery during long-term operation. However, contaminants such as salt, impurities, and microorganisms can accumulate on the surface of reverse osmosis membranes, leading to decreased membrane permeability and thus reducing the output and quality of freshwater.

[0004] To restore membrane performance, traditional reverse osmosis membrane units require regular cleaning and maintenance. However, membrane cleaning in traditional units typically necessitates shutdown and disassembly, a cumbersome and time-consuming process. This not only affects the continuous operation of the unit but also increases maintenance costs and manpower consumption. While existing technologies use water pumps to pressurize and clean the membrane through nozzles, most nozzles are fixed, limiting the cleaning angle and easily leading to dead zones. Utility Model Content

[0005] This application provides an acetic acid separation and recovery device to solve the problems existing in related technologies. The technical solution is as follows: This application provides an acetic acid separation and recovery device, comprising: Filter assembly; the liquid is filtered through the filter assembly. The recycling component is connected to the filter component via a pipe. The pipes between the first water pump, the recovery component, and the filtration component are respectively installed at the inlet and outlet of the first water pump. The reverse osmosis membrane is installed inside the recovery module, and the pipeline transports the liquid output from the filtration module to the reverse osmosis membrane. The cleaning component is located inside the recycling component. The cleaning component moves up and down relative to the recycling component to clean the recycling component.

[0006] In one implementation, The recyclable components include: The recycling bin has a discharge port, and the reverse osmosis membrane is installed inside the recycling bin in a barrel shape. The fixed column is located inside the recovery tank, the reverse osmosis membrane is ringed around the fixed column, and the cleaning component is located on the recovery tank and inside the fixed column.

[0007] In one implementation, The cleaning components include: The inner walls of the casing, the fixing column, and the recycling bin all have cavities for the casing to move. Several nozzles are installed on the casing. When the casing reciprocates relative to the recycling bin or the fixed column, the nozzles swing relative to the fixed column or the recycling bin. The drive unit is installed on the recycling bin and drives the housing to reciprocate relative to the recycling bin or the fixed column.

[0008] In one implementation, The cleaning components also include: The second water pump has its inlet connected to an external water source. The water supply pipe has several outlets. The inlet end of the water supply pipe is connected to the outlet end of the second water pump. The water supply pipe is enclosed in a casing, and the several outlets correspond to several nozzles.

[0009] In one implementation, The inner walls of the fixed column and the recycling bin have several through holes that are adapted to the nozzle. When the casing reciprocates relative to the recycling bin or the fixed column, the nozzle swings within the through holes.

[0010] In one implementation, it further includes: Several limiting posts are respectively set on the inner wall of the fixed post and the recycling box. The limiting posts are located at the corresponding through holes. The nozzle has a sliding groove, and the limiting posts are located in the sliding groove.

[0011] In one implementation, The filtering components include: The filter box has an inlet and an outlet, and the outlet is connected to the first water pump through a pipe. Filter screen; Filter cotton board; The activated carbon filter plate, filter mesh plate, filter cotton plate, and activated carbon filter plate are arranged sequentially from the end of the filter box with the inlet to the end with the outlet.

[0012] In one implementation, The filtered liquid enters the reverse osmosis membrane through pipes.

[0013] In one implementation, Water pipes are flexible pipe fittings.

[0014] In one implementation, The driving components include: The electric actuator has its output end located at the bottom of the housing.

[0015] The advantages or beneficial effects of the above technical solutions include at least the following: Multi-stage filtration using a filtration unit, combined with a reverse osmosis membrane, removes impurities and salts from the waste liquid, improving the purity and recovery efficiency of acetic acid. After filtration, a cleaning unit cleans the recovery unit and the reverse osmosis membrane. During the cleaning process, the angle of the cleaning unit relative to the recovery unit is adjusted to clean different parts of the reverse osmosis membrane, improving cleaning efficiency.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0018] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; 100. Filter assembly; 110. Filter box; 120. Filter screen; 130. Filter cotton plate; 140. Activated carbon filter plate; 200. Recycling component; 210. Recycling bin; 220. Fixing post; 230. Through hole; 300. First water pump; 400. Reverse osmosis membrane; 500. Cleaning assembly; 510. Housing; 520. Nozzle; 521. Slide rail; 530. Drive unit; 531. Electric push rod; 540. Second water pump; 550. Water supply pipe; 600, Limiting post. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0020] Figures 1-2 A structural diagram of an acetic acid separation and recovery apparatus according to an embodiment of this application is shown. Figures 1-2 As shown, the recycling device may include: Filter assembly 100, the liquid is filtered through filter assembly 100; The recycling component 200 is connected to the filter component 100 via a pipe. The pipes between the first water pump 300, the recovery component 200 and the filter component 100 are respectively installed at the inlet and outlet of the first water pump 300. The reverse osmosis membrane 400 is installed inside the recovery module 200, and the pipeline transports the liquid output from the filter module 100 to the reverse osmosis membrane 400. The cleaning component 500 is installed inside the recycling component 200. The cleaning component 500 moves up and down relative to the recycling component 200 to clean the recycling component 200.

[0021] In this embodiment, waste liquid is added to the filter assembly 100. Through multi-stage filtration by the filter assembly 100, impurities and salts in the waste liquid are filtered out. After filtration, the waste liquid is transported to the recovery assembly 200 by the first water pump 300 and further filtered by the reverse osmosis membrane 400. Through multi-stage filtration by the filter assembly 100 and the reverse osmosis membrane 400, impurities and salts in the waste liquid are filtered out, improving the purity and recovery efficiency of acetic acid. After filtration, the recovery assembly 200 and the reverse osmosis membrane 400 are cleaned by the cleaning assembly 500. During the cleaning process, the angle of the cleaning assembly 500 relative to the recovery assembly 200 is driven to clean different positions of the reverse osmosis membrane 400, improving the cleaning efficiency.

[0022] like Figure 1 As shown, in one embodiment, The recycled component 200 includes: The recycling bin 210 has a discharge port, and the reverse osmosis membrane 400 is installed inside the recycling bin 210 in a barrel shape. The fixed column 220 is set inside the recovery tank 210. The reverse osmosis membrane 400 is arranged around the fixed column 220. The cleaning component 500 is partly located on the recovery tank 210 and partly located inside the fixed column 220.

[0023] In this embodiment, waste liquid is transported into the reverse osmosis membrane 400, which is arranged in a barrel (or column) shape. The first water pump 300 transports the waste liquid to the center of the reverse osmosis membrane 400 through a pipeline. The waste liquid passes through the reverse osmosis membrane 400 and enters the recovery tank 210 to recover acetic acid. After recovery, the reverse osmosis membrane 400 is cleaned inside and out by the cleaning component 500. The cleaning component 500 is set on the recovery tank 210 and the fixed column 220. By changing the angle of the cleaning component 500 relative to the recovery tank 210 and the fixed column 220, the reverse osmosis membrane 400 can be cleaned at different positions.

[0024] like Figures 1-2 As shown, in one embodiment, Cleaning assembly 500 includes: The inner walls of the casing 510, the fixing column 220, and the recycling box 210 all have cavities for the casing 510 to move. A plurality of nozzles 520 are provided on the housing 510. When the housing 510 reciprocates relative to the recycling bin 210 or the fixed column 220, the nozzles 520 swing relative to the fixed column 220 or the recycling bin 210. The drive unit 530 is installed on the recycling bin 210 and drives the housing 510 to reciprocate relative to the recycling bin 210 or the fixed column 220.

[0025] In this embodiment, a plurality of housings 510 are provided on the inner wall of the recycling tank 210, and each housing 510 has a plurality of nozzles 520. The outer surface of the reverse osmosis membrane 400 is cleaned by the nozzles 520 on the inner wall of the recycling tank 210. Specifically, the number of casings 510 on the inner wall of the recycling box 210 is preferably four, so that the outer surface of the reverse osmosis membrane 400 can be cleaned from four directions to ensure that the reverse osmosis membrane 400 is cleaned without dead angles. A housing 510 is installed inside the fixed column 220. Four rows of nozzles 520 are installed on the housing 510 to clean the reverse osmosis membrane 400 from the inside, ensuring that the reverse osmosis membrane 400 is cleaned without dead angles. It should be noted that the nozzle 520 is rotatably mounted on the housing 510 via a rotating shaft, and the end of the nozzle 520 facing the housing 510 is arranged in a "U" shape.

[0026] like Figure 1 As shown, in one embodiment, The cleaning assembly 500 also includes: The second water pump 540 has its inlet end connected to an external water source. The water supply pipe 550 has several outlets. The inlet end of the water supply pipe 550 is connected to the outlet end of the second water pump 540. The water supply pipe 550 is enclosed in the housing 510, and the several outlets correspond to several nozzles 520 respectively.

[0027] In this embodiment, external clean water is delivered to the nozzle 520 through the water pipe 550 by the second water pump 540, thereby cleaning the reverse osmosis membrane 400. The water pipe 550 is wrapped inside the housing 510 to ensure that when the housing 510 is driven, it drives the nozzle 520 to swing, and at the same time, the water pipe 550 normally delivers water to the nozzle 520. Specifically, the water supply pipe 550 is an elastic pipe fitting, preferably a rubber pipe. The rubber pipe has a certain degree of elasticity, which can ensure the normal water supply function of the water supply pipe 550 when the casing 510 moves.

[0028] like Figures 1-2 As shown, in one embodiment, The inner walls of the fixed column 220 and the recycling box 210 have several through holes 230, which are adapted to the nozzle 520. When the housing 510 reciprocates relative to the recycling box 210 or the fixed column 220, the nozzle 520 swings within the through hole 230.

[0029] A number of limiting posts 600 are respectively set on the inner walls of the fixed post 220 and the recycling box 210. The limiting posts 600 are respectively located at the corresponding through holes 230. The nozzle 520 has a sliding groove 521, and the limiting posts 600 are located in the sliding groove 521.

[0030] In this embodiment, when the driving member 530 drives the housing 510 to move, the limiting post 600 slides in the slide groove 521, thereby realizing the swing of the nozzle 520. When the housing 510 moves upward, the nozzle 520 swings downward, and when the housing 510 moves downward, the nozzle 520 swings upward, thereby realizing the cleaning of the reverse osmosis membrane 400 from different angles and ensuring that the reverse osmosis membrane 400 is cleaned without dead angles. Specifically, the number of limiting posts 600 and through holes 230 corresponds to the number of nozzles 520. Baffles can be installed on nozzles 520 to block through holes 230 and reduce the amount of waste liquid seeping into the inner wall of the recycling tank 210.

[0031] like Figure 1 As shown, in one embodiment, Filter assembly 100 includes: The filter box 110 has an inlet and an outlet, and the outlet is connected to the first water pump 300 through a pipe. Filter screen 120; Filter cotton plate 130; The activated carbon filter plate 140, filter mesh plate 120, filter cotton plate 130 and activated carbon filter plate 140 are arranged sequentially from the end of the filter box 110 with the inlet to the end with the outlet.

[0032] In this embodiment, the waste liquid is transported to the filter box 110 through the feed port. After being filtered by the filter screen plate 120, the filter cotton plate 130 and the activated carbon filter plate 140, the impurities and particles in the waste liquid are effectively removed. Finally, it is transported to the first water pump 300 through the discharge port. The acetic acid is filtered through multiple stages, including filter screen 120, filter cotton 130, and activated carbon filter 140, and combined with reverse osmosis membrane 400 to filter impurities and salts in the waste liquid, thereby improving the purity and recovery efficiency of acetic acid.

[0033] like Figure 1 As shown, in one embodiment, The liquid filtered by filter box 110 enters the reverse osmosis membrane 400 through the pipeline.

[0034] In this embodiment, the reverse osmosis membrane 400 is configured as a barrel or column shape. The liquid filtered by the filter box 110 enters the center of the reverse osmosis membrane 400 and then enters the recovery box 210 through the reverse osmosis membrane 400, ensuring the filtration direction of the waste liquid.

[0035] like Figure 1 As shown, in one embodiment, Drive unit 530 includes: Electric actuator 531, the output end of which is located at the bottom of housing 510.

[0036] In this embodiment, the electric push rod 531 drives the housing 510 to move up and down reciprocally, thereby realizing the oscillation of the nozzle 520. Specifically, the inner walls of the fixed column 220 and the recycling box 210 are provided with cavities for the housing 510 to move, and several through holes 230 are connected to the cavities.

[0037] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0039] 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 at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An acetic acid separation and recovery device, characterized in that, include: The liquid is filtered through the filter assembly. A recycling component, which is connected to the filtration component via a pipe; The first water pump, the pipeline between the recovery component and the filtration component is respectively set at the inlet end and the outlet end of the first water pump; A reverse osmosis membrane is disposed within the recovery assembly, and a pipeline transports the liquid output from the filtration assembly to the reverse osmosis membrane. A cleaning component is disposed within the recycling component, and the cleaning component moves up and down relative to the recycling component to clean the recycling component.

2. The acetic acid separation and recovery device according to claim 1, characterized in that, The recycling component includes: A recycling bin has a discharge port, and the reverse osmosis membrane is disposed inside the recycling bin in a barrel shape. A fixed column is disposed inside the recovery tank, the reverse osmosis membrane is arranged around the fixed column, and the cleaning assembly is partially located on the recovery tank and partially located inside the fixed column.

3. The acetic acid separation and recovery device according to claim 2, characterized in that, The cleaning assembly includes: The casing has cavities on both the fixing column and the inner wall of the recycling box for the casing to move. A plurality of nozzles are provided on the housing. When the housing reciprocates relative to the recycling bin or the fixed column, the nozzles swing relative to the fixed column or the recycling bin. A driving component is disposed on the recycling bin, and the driving component drives the housing to reciprocate relative to the recycling bin or the fixed column.

4. The acetic acid separation and recovery device according to claim 3, characterized in that, The cleaning assembly also includes: The second water pump has its inlet connected to an external water source. A water supply pipe having several outlets, the inlet end of the water supply pipe being connected to the outlet end of the second water pump, the water supply pipe being enclosed within the housing, and each of the outlets corresponding to a number of nozzles.

5. The acetic acid separation and recovery device according to claim 3, characterized in that, The inner walls of the fixed column and the recycling bin have several through holes, which are adapted to the nozzle. When the casing reciprocates relative to the recycling bin or the fixed column, the nozzle swings within the through holes.

6. The acetic acid separation and recovery device according to claim 5, characterized in that, Also includes: A plurality of limiting posts are respectively disposed on the inner wall of the fixed post and the recycling box, and the plurality of limiting posts are respectively located at the corresponding through holes. The nozzle has a sliding groove, and the limiting posts are located in the sliding groove.

7. The acetic acid separation and recovery device according to claim 2, characterized in that, The filtering component includes: A filter box having an inlet and an outlet, the outlet being connected to the first water pump via a pipe; Filter screen; Filter cotton board; The activated carbon filter plate, the filter mesh plate, the filter cotton plate and the activated carbon filter plate are arranged sequentially from the end of the filter box with the inlet to the end with the outlet.

8. The acetic acid separation and recovery device according to claim 7, characterized in that, The liquid filtered by the filter box enters the reverse osmosis membrane through a pipe.

9. An acetic acid separation and recovery device according to claim 4, characterized in that, The water supply pipe is a flexible pipe fitting.

10. An acetic acid separation and recovery device according to claim 3, characterized in that, The driving component includes: An electric actuator, the output end of which is located at the bottom of the housing.

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