Method for removing impurities from wastewater in preparation of copper methionine and recycling of mother liquor

Abstract

The application provides a method for removing impurities from wastewater in the preparation process of methionine copper and recycling mother liquor, and relates to the technical field of methionine copper preparation. According to the device for removing impurities from wastewater in the preparation process of methionine copper, the inner cavity of the purification component is assembled with a purification inner cylinder for removing impurities from water, the inner cavity of the purification component and the outer surface of the purification inner cylinder are jointly assembled to form a backflushing channel, the inside of the purification inner cylinder is assembled with an ultrafiltration purification member, and the fine filtration assembly comprises a fine filter and a coarse filter. The fine filter and the coarse filter can finely filter impurities in the solution, finally, ultrafine filtration is performed by using the ultrafiltration purification member, and when the fine filtration assembly filters, the water flow intermittently impacts, the second elastic member is driven to displace the fine filtration assembly, the occurrence of blockage of filter holes of the fine filter and the coarse filter on the fine filtration assembly is reduced, and the filtration efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of copper methionine preparation technology, and more specifically, to a wastewater removal device and a method for recycling mother liquor during the preparation of copper methionine. Background Technology

[0002] After ion exchange adsorption of Na+ on sodium methionine and H+ on the H-type resin using H-type resin, an ion exchange solution mainly containing methionine and a regenerated solution mainly containing sodium sulfate are obtained. The ion exchange solution is then subjected to flash evaporation, low-temperature crystallization, separation, membrane concentration, membrane decolorization, electrodialysis, and chromatography to obtain the product methionine. The regenerated solution is then sent to processes such as alkali adjustment, MVR concentration, and separation to obtain the byproduct sodium sulfate.

[0003] In the preparation of copper methionine, during the room-temperature crystallization process, the mixed solution generated by the neutralization reaction contains methionine and sodium sulfate. Separation technology is used to pre-remove impurities from the methionine and sodium sulfate solutions before separation. This separation process controls the concentration of organic and inorganic impurities in the mixed solution, separating high-molecular-weight organic matter, microorganisms, and suspended solids, allowing them to be processed separately in subsequent steps. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a wastewater removal device and a method for mother liquor recycling in the preparation of copper methionine. By employing separation technology, methionine and sodium sulfate solutions are pre-removed and then separated. This separates the concentrations of organic and inorganic impurities in the mixed solution during the process, separating high-molecular-weight organic matter, microorganisms, and suspended solids, ultimately allowing both to be processed separately in subsequent steps.

[0005] This application is implemented as follows:

[0006] This application provides a wastewater removal device for the preparation of copper methionine, including:

[0007] The purification component has an inner purification cylinder installed in its inner cavity for removing impurities from the water. The inner cavity of the purification component and the outer surface of the inner purification cylinder are assembled together to form a backwash channel. An ultrafiltration purification component is installed inside the inner purification cylinder. At the same time, a fine filter assembly for primary filtration of the water is provided on the left side of the inner cavity of the inner purification cylinder. The fine filter assembly includes a fine filter element and a coarse filter element. An anti-clogging component is installed at one end of the fine filter assembly located in the inner cavity of the inner purification cylinder.

[0008] According to the wastewater removal device in the preparation process of copper methionine according to the embodiments of this application, the right side of the inner cavity of the purification inner cylinder is connected to a draining device, and a collecting part is provided on the left side of the purification inner cylinder, and a liquid delivery device is connected to one end of the collecting part.

[0009] According to the wastewater purification device in the preparation process of copper methionine according to the embodiments of this application, the inner cavity of the purification component is equipped with a circulation backwash assembly, which includes a water pump body assembled at the right end of the bottom of the purification component for water delivery, and also includes an assembly partition plate one and an assembly partition plate two sleeved on both ends of the outer surface of the inner cylinder of the purification component. A through pipe is installed through the surface of the assembly partition plate one, and a water delivery tank is opened on the surface of the assembly partition plate two.

[0010] According to the wastewater purification device in the preparation process of copper methionine according to the embodiments of this application, the outer surface of the fine filter element is fitted with a feeding base, and the outer ring of the inner surface of the feeding base is provided with a feeding cavity. At the same time, assembly grooves are symmetrically provided around the outer ring of the inner surface of the feeding base.

[0011] According to the wastewater removal device in the preparation process of copper methionine according to the embodiments of this application, one end of the conveying base is integrally formed with a sliding cylinder, and several drainage cylinders are symmetrically installed on the outer ring of one side of the conveying base.

[0012] According to the wastewater removal device in the preparation process of copper methionine according to the embodiments of this application, the coarse filter element is slidably assembled in the inner cavity of the conveying base, and a sealing ring plate is sleeved on the surface of the coarse filter element.

[0013] According to the wastewater removal device in the preparation process of copper methionine according to the embodiments of this application, a connecting plate is symmetrically installed around the outer surface of the sealing ring plate, and a sliding shaft is provided through the surface of the connecting plate.

[0014] According to the wastewater purification device for the preparation of copper methionine in this application embodiment, the anti-clogging component includes a feeding cylinder, which is disposed in the inner cavity of the purification inner cylinder, and an assembly plate is installed in the middle of the outer surface of the feeding cylinder. A sealing partition is fixedly sleeved on the right end of the surface of the feeding cylinder.

[0015] According to the wastewater removal device for the preparation of copper methionine in this application embodiment, a first elastic element and a second elastic element are symmetrically installed at both ends of the outer surface of the feeding cylinder.

[0016] A method for recycling mother liquor includes:

[0017] S1. Ultrafiltration purification components and fine filtration modules are used to separate the mixed solution wastewater generated from the room temperature crystallization and recrystallization processes, so as to form a higher purity filtrate and waste residue;

[0018] S2. The high-concentration filtrate enters the acidification and crystallization process, while the residual organic matter and inorganic salts in the separated wastewater are treated by ion exchange and neutralization to remove harmful components and recycle them, reducing the input of fresh raw materials.

[0019] S3. After filtration, the waste is backwashed and recycled using a circulating backwashing component. The recycled waste residue can be dried, incinerated, or subjected to solid-liquid separation to convert it into solid waste or extract valuable substances from it.

[0020] The beneficial effects of this invention are:

[0021] 1. In the process of treating solid sludge, this application uses fine and coarse filter elements to finely filter impurities in the solution, and finally uses an ultrafiltration purification component for ultrafine filtration. When the fine filter element is filtering, the intermittent impact of the water flow can compress the second elastic element and drive the fine filter element to move, thereby reducing the occurrence of clogging of the filter pores of the fine and coarse filter elements and increasing the filtration efficiency.

[0022] 2. This application, by designing a circulating backwashing structure within the purification component, utilizes a water pump to flush backwash water into the ultrafiltration purification component and the fine filter assembly, flushing the filter pores on both structures to prevent clogging. When the backwash water passes through the feed cylinder, the first elastic element is compressed, causing the feed cylinder to shift and adjust the position of the fine filter assembly. When the backwash water flushes the coarse filter, it can displace the fine filter, creating a gap between them. This allows the filter residue and backwash water to be quickly flushed into the collection section for collection, improving the filter residue collection efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional assembly diagram of the overall structure according to an embodiment of this application;

[0025] Figure 2 This is an exploded perspective view of the overall structure according to an embodiment of this application;

[0026] Figure 3 This is a three-dimensional cross-sectional view of the purification component structure according to an embodiment of this application;

[0027] Figure 4 This is a three-dimensional sectional view of the purification inner cylinder structure according to an embodiment of this application;

[0028] Figure 5 This is a three-dimensional assembly diagram of the fine filter component structure according to an embodiment of this application;

[0029] Figure 6This is an exploded perspective view of the fine filter component structure according to an embodiment of this application;

[0030] Figure 7 This is an exploded three-dimensional schematic diagram of the fine filter component structure according to an embodiment of this application;

[0031] Figure 8 This is a three-dimensional schematic diagram of the coarse filter structure according to an embodiment of this application;

[0032] Figure 9 This is a three-dimensional cross-sectional view of the delivery base structure according to an embodiment of this application.

[0033] In the picture:

[0034] 100. Purification component; 111. Drainage component; 112. Liquid delivery component; 110. Purification inner cylinder; 120. Ultrafiltration purification component;

[0035] 200. Anti-clogging component; 210. Feeding cylinder; 211. Assembly plate; 212. Sealing partition; 220. First elastic element; 230. Second elastic element;

[0036] 300. Fine filter assembly; 310. Conveying base; 311. Conveying chamber; 312. Assembly tank; 313. Slide cylinder; 314. Drainage cylinder; 320. Fine filter element; 330. Coarse filter element; 331. Sealing ring plate; 332. Connecting plate; 333. Sliding shaft;

[0037] 400. Circulation backflushing assembly; 410. Water pump body; 420. Assembly partition one; 421. Through pipe; 430. Assembly partition two;

[0038] 500. Collection Department. Detailed Implementation

[0039] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Example

[0042] like Figures 1-4As shown, the wastewater purification device in the preparation process of copper methionine according to the embodiment of this application includes a purification component 100. The inner cavity of the purification component 100 is equipped with a purification inner cylinder 110 for removing impurities from the water. The inner cavity of the purification component 100 and the outer surface of the purification inner cylinder 110 are assembled together to form a backwash channel. The inner cavity of the purification inner cylinder 110 is equipped with an ultrafiltration purification component 120 for removing impurities from the water.

[0043] The right side of the inner cavity of the purification inner cylinder 110 is connected to a drain component 111, and the other end of the drain component 111 extends through the outside of the purification component 100. Meanwhile, a collection section 500 is provided on the left side of the purification inner cylinder 110, and a liquid delivery component 112 is connected to one end of the collection section 500. Similarly, the other end of the liquid delivery component 112 extends through the outside of the purification component 100. During backwashing, the liquid in the purification inner cylinder 110 can flow through the collection section 500 to collect impurities.

[0044] Furthermore, a sealing cap is threaded onto one end of the surface of the collection section 500. When filter residue is stored in the collection section 500, the impurities in the collection section 500 can be cleaned by unscrewing the sealing cap.

[0045] like Figures 2-4 As shown, in order to perform cyclic backwashing on the ultrafiltration purification component 120, the fine filter element 320, and the coarse filter element 330, a cyclic backwashing assembly 400 is installed in the inner cavity of the purification component 100. The cyclic backwashing assembly 400 includes a water pump body 410 installed at the right end of the bottom of the purification component 100 for water delivery, and also includes a first assembly partition 420 and a second assembly partition 430 sleeved on both ends of the outer surface of the inner purification cylinder 110. A through pipe 421 is installed through the surface of the first assembly partition 420. The through pipe 421 is composed of a through pipe and a one-way valve body. Meanwhile, a water delivery trough is opened on the surface of the second assembly partition 430.

[0046] Furthermore, the inlet end of the water pump body 410 is connected to the inner cavity of the purification component 100 through a pipe, while the outlet end of the water pump body 410 is connected to the inner cavity of the drain component 111 through a pipe.

[0047] In this way, the water pump body 410 draws water from the backwash channel formed by the purification component 100 and the purification inner cylinder 110 into the drain component 111, and then backwashes it into the purification component 100 through the drain component 111 to clean the ultrafiltration purification component 120, the fine filter component 320 and the coarse filter component 330. This causes the cleaned impurities to remain in the collection section 500, while the backwash water flows back into the backwash channel formed by the purification component 100 and the purification inner cylinder 110 through the collection section 500 for recycling.

[0048] like Figures 2-9As shown, a fine filter assembly 300 for primary filtration of water is provided on the left side of the inner cavity of the purification inner cylinder 110. The fine filter assembly 300 includes a fine filter element 320 and a coarse filter element 330, which cooperate with each other to form a filtration channel for filtration and purification of the flowing water. A feeding base 310 is fitted on the outer surface of the fine filter element 320, and a feeding cavity 311 is opened on the outer ring of the inner surface of the feeding base 310. At the same time, assembly grooves 312 are symmetrically opened around the outer ring of the inner surface of the feeding base 310.

[0049] One end of the feeding base 310 is integrally formed with a slide cylinder 313, and the inner surface of the slide cylinder 313 is sealed and slidably connected to the outer surface of the feeding cylinder 210. A number of drainage cylinders 314 are symmetrically installed on the outer ring of one side of the feeding base 310. One end of the drainage cylinder 314 is connected to the inner cavity of the feeding cavity 311. The drainage cylinder 314 is preferably composed of a fixed pipe and a one-way valve body.

[0050] The coarse filter element 330 is slidably assembled in the inner cavity of the conveying base 310, and one end of it is in contact with the fine filter element 320 to form a microfiltration channel for fine filtration of floating impurities in the water. A sealing ring plate 331 is sleeved on the surface of the coarse filter element 330, and the outer surface of the sealing ring plate 331 and the inner surface of the conveying base 310 make a sealing sliding contact, thereby using the sealing ring plate 331 to seal the sealing ring plate 331.

[0051] A connecting plate 332 is symmetrically installed around the outer surface of the sealing ring plate 331. A sliding shaft 333 is provided through the surface of the connecting plate 332, and the sliding shaft 333 is installed in the assembly groove 312. The surface of the connecting plate 332 extends into the inner cavity of the assembly groove 312. This allows the backwash water to push the coarse filter 330 away from the fine filter 320 without external force restraint. Part of the backwash water passes through the fine filter 320 and the coarse filter 330 to flush their filter holes, while the other part of the backwash water is discharged through the water flow channel formed by the feed chamber 311 and the drain cylinder 314. This avoids the problem that the coarse filter 330 cannot effectively backwash the filter holes of the fine filter 320 due to impurities in the filter holes of the fine filter 320 during backwashing.

[0052] like Figures 3-4As shown, an anti-clogging component 200 is installed at one end of the fine filter assembly 300 and in the inner cavity of the purification inner cylinder 110. This anti-clogging component 200 is used to prevent the filter holes of the fine filter element 320 and the fine filter assembly 300 from clogging during filtration. The anti-clogging component 200 includes a feeding cylinder 210, which is disposed in the inner cavity of the purification inner cylinder 110. An assembly plate 211 is installed in the middle of the outer surface of the feeding cylinder 210. The outer surface of the assembly plate 211 is connected to the inner surface of the purification inner cylinder 110. A sealing partition 212 is fixedly sleeved on the right end of the surface of the feeding cylinder 210. The outer surface of the sealing partition 212 makes a sealing sliding contact with the inner surface of the purification inner cylinder 110.

[0053] The first elastic element 220 and the second elastic element 230 are symmetrically installed at both ends of the outer surface of the feeding cylinder 210. The first elastic element 220 and the second elastic element 230 are preferably springs, and their specific elastic force values ​​are selected according to actual needs. The other end of the first elastic element 220 is connected to the sealing partition 212, and the other end of the second elastic element 230 is connected to the surface of the slide cylinder 313 through a connector.

[0054] like Figures 1-9 As shown, the method for recycling mother liquor according to an embodiment of this application includes:

[0055] S1. The ultrafiltration purification component 120 and the fine filtration component 300 are used to separate the mixed solution wastewater generated in the room temperature crystallization and recrystallization processes, so as to form a higher purity filtrate and waste residue.

[0056] S2. The high-concentration filtrate enters the acidification and crystallization process, while the residual organic matter and inorganic salts in the separated wastewater are treated by ion exchange and neutralization to remove harmful components and recycle them, reducing the input of fresh raw materials.

[0057] S3. After filtration, the waste is backwashed and recycled using the circulating backwash component 400. The recycled waste residue can be dried, incinerated, or separated into solid and liquid components to convert it into solid waste or extract valuable substances from it.

[0058] The electronic components and models used in this invention can be customized according to actual usage requirements.

[0059] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. 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.

[0060] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should 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. A wastewater removal device for the preparation of copper methionine, characterized in that, The system includes a purification component (100), the inner cavity of which is fitted with a purification inner cylinder (110) for removing impurities from the water. The inner cavity of the purification component (100) and the outer surface of the purification inner cylinder (110) are assembled together to form a backwash channel. Meanwhile, a collection section (500) is provided on the left side of the purification inner cylinder (110), so that the cleaned impurities are retained in the collection section (500), while the backwash water flows back into the purification component (100) through the collection section (500). The backwash channel formed by the purification inner cylinder (110) and the purification inner cylinder (110) is recycled. The purification inner cylinder (110) is equipped with an ultrafiltration purification component (120). At the same time, a fine filter assembly (300) for primary filtration of water is provided on the left side of the inner cavity of the purification inner cylinder (110). The fine filter assembly (300) includes a fine filter element (320) and a coarse filter element (330). An anti-clogging component (200) is installed at one end of the fine filter assembly (300) and in the inner cavity of the purification inner cylinder (110). The outer surface of the fine filter element (320) is fitted with a feeding base (310), and the outer ring of the inner surface of the feeding base (310) is provided with a feeding cavity (311). Meanwhile, assembly grooves (312) are symmetrically provided around the outer ring of the inner surface of the feeding base (310). The guide base (310) has an integrally formed slide cylinder (313) at one end, and several drainage cylinders (314) are symmetrically installed on the outer ring of one side of the guide base (310). The coarse filter element (330) is slidably assembled in the inner cavity of the conveying base (310), and a sealing ring plate (331) is sleeved on the surface of the coarse filter element (330). A connecting plate (332) is symmetrically installed around the outer surface of the sealing ring plate (331). A sliding shaft (333) is provided through the surface of the connecting plate (332), and the sliding shaft (333) is installed in the assembly groove (312). The anti-blocking component (200) includes a feeding cylinder (210), which is disposed in the inner cavity of the purification inner cylinder (110). An assembly plate (211) is installed in the middle of the outer surface of the feeding cylinder (210), and a sealing partition (212) is fixedly sleeved on the right end of the surface of the feeding cylinder (210). The first elastic element (220) and the second elastic element (230) are symmetrically installed at both ends of the outer surface of the feeding cylinder (210). The other end of the first elastic element (220) is connected to the sealing partition (212), and the other end of the second elastic element (230) is connected to the surface of the slide cylinder (313) through a connector.

2. The wastewater removal device for the preparation of copper methionine according to claim 1, characterized in that, The right side of the inner cavity of the purification inner cylinder (110) is connected to a drain component (111), while the end of the collection part (500) is connected to a liquid delivery component (112).

3. The wastewater removal device for the preparation of copper methionine according to claim 1, characterized in that, The inner cavity of the purification component (100) is equipped with a circulation backwash assembly (400), which includes a water pump body (410) assembled at the right end of the bottom of the purification component (100) for water delivery, and also includes an assembly partition plate one (420) and an assembly partition plate two (430) sleeved on both ends of the outer surface of the purification inner cylinder (110). The surface of the assembly partition plate one (420) is through-installed with a through pipe (421), while the surface of the assembly partition plate two (430) is provided with a water delivery trough.

4. A method for recycling mother liquor, comprising using the wastewater removal device for the preparation of copper methionine according to any one of claims 1-3, characterized in that, include: S1. The mixed solution wastewater generated from the room temperature crystallization and recrystallization processes is separated by an ultrafiltration purification component (120) and a fine filtration component (300) to form a higher purity filtrate and waste residue. S2. The high-concentration filtrate enters the acidification and crystallization process, while the residual organic matter and inorganic salts in the separated wastewater are treated by ion exchange and neutralization to remove harmful components and recycle them, reducing the input of fresh raw materials. S3. The filtered waste residue is backwashed and recycled using the circulating backwashing component (400). The recycled waste residue is then dried, incinerated, and subjected to solid-liquid separation to convert it into solid waste or extract valuable substances from it.

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