Chemical product preparation mother liquor recycling and filtering device

Abstract

The utility model discloses a chemical product preparation mother liquor recycling and filtering device, which relates to the technical field of mother liquor recycling and filtering and comprises a filtering tank body, a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is mounted on the upper side of the filtering tank body in a penetrating manner, and the liquid outlet pipe is mounted at the bottom of the filtering tank body in a penetrating manner. According to the chemical product preparation mother liquor recycling and filtering device, when a guiding auger rotates, mother liquor and impurities in the mother liquor are guided to a temporary storage cavity on the lower side along a first filtering cavity, and the mother liquor can spread to a second filtering cavity through the first filtering cavity in the guiding process of the guiding auger to be subjected to secondary filtering and then flows out of a liquid outlet pipe; impurities in the mother liquor enter the temporary storage cavity for temporary storage under the guiding action of the guiding auger, so that the chemical product preparation mother liquor recycling and filtering device solves the problem that the mother liquor cannot rapidly circulate due to the fact that the impurities are continuously accumulated to block meshes of the first filtering layer and the second filtering layer in the filtering process of a large amount of mother liquor.

Description

Technical Field

[0001] The utility model relates to the technical field of mother liquor recovery and filtration, in particular to a mother liquor recovery and filtration device for the preparation of chemical products. Background Technique

[0002] In the process of chemical product preparation, mother liquor recovery is a key link, which involves the recovery and reuse of solution by-products containing valuable substances generated during the production process. Mother liquor is usually generated during chemical reactions, crystallization, extraction, etc., and contains unreacted raw materials, intermediate products, solvents, and trace amounts of target products. The main purpose of mother liquor recovery is to achieve the effective utilization of resources and reduce environmental pollution. By recovering the useful components in the mother liquor, the production cost can be reduced, the utilization rate of raw materials can be improved, and the waste discharge can be reduced.

[0003] According to a mother liquor recovery device for L-phenylalanine filtration with the publication number CN115771962A, it includes a mother liquor tank, a filtration tank, an evaporation tank, a crystallization tank, and a waste liquid recovery tank connected in sequence through a connecting pipe. A filtration mechanism for filtering impurities in the L-phenylalanine mother liquor is installed inside the filtration tank; the filtration mechanism in the filtration tank can filter the L-phenylalanine mother liquor. Among them, the second filtration layer in the filtration mechanism can filter out particulate impurities in the L-phenylalanine mother liquor, and the first filtration layer in the filtration mechanism can remove bad substances such as oil stains and odors in the L-phenylalanine mother liquor; however, this filtration mechanism is arranged flatly and cannot collect and store impurities. During the filtration of a large amount of mother liquor, impurities will continuously accumulate and block the mesh holes of the first filtration layer and the second filtration layer, resulting in the inability of the mother liquor to flow quickly and reducing the mother liquor recovery efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a mother liquor recovery and filtration device for the preparation of chemical products, so as to solve the problem that during the filtration of a large amount of mother liquor in the above background technique, impurities will continuously accumulate and block the mesh holes of the first filtration layer and the second filtration layer, resulting in the inability of the mother liquor to flow quickly.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A mother liquor recovery and filtration device for the preparation of chemical products, including a filtration tank body, a liquid inlet pipe, and a liquid outlet pipe.

[0006] The liquid inlet pipe is installed through the upper side of the filtration tank body, the liquid outlet pipe is installed through the bottom of the filtration tank body, the liquid inlet pipe is connected to a guiding pipe through a connecting pipe, the end of the guiding pipe away from the liquid inlet pipe is inserted through the filtration frame, and a tank cover is arranged on the top of the filtration tank body.

[0007] Preferably, a first filtration chamber, a second filtration chamber and a temporary storage chamber are arranged inside the filtration frame. The second filtration chamber is located outside the first filtration chamber, and the temporary storage chamber is located at the bottom of the first filtration chamber.

[0008] Preferably, a driving motor is installed at the top of the tank cover through a locking bolt. The output end at the bottom of the driving motor is connected to the top of the guiding auger through a coupling. The bottom of the guiding auger is rotationally connected to the filtration frame through a bearing seat.

[0009] Preferably, a docking groove is formed inside the filtration tank body, an auxiliary limiting groove is formed at the bottom of the tank cover, and the upper side of the filtration frame is inserted into the auxiliary limiting groove through an auxiliary limiting block.

[0010] Preferably, the bottom of the filtration frame is inserted into the docking groove through an insertion block. Both the insertion block and the docking groove are cross-shaped, and the insertion dimensions of the insertion block and the docking groove match each other.

[0011] Preferably, a sealing groove is formed at the top of the filtration tank body, a sealing layer is connected to the bottom of the tank cover, the size of the sealing layer matches that of the sealing groove, an installation groove is formed inside the tank cover, and one side of the tank cover close to the installation groove is hinged to one side of the cover plate through an installation block and a pin shaft.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: In this chemical product preparation mother liquor recovery and filtration device, when the guiding auger rotates, the mother liquor and impurities in the mother liquor are guided along the first filtration chamber to the temporary storage chamber at the lower side. During the guiding process of the guiding auger, the mother liquor spreads from the first filtration chamber to the second filtration chamber for secondary filtration and then flows out through the liquid outlet pipe, while the impurities in the mother liquor enter the temporary storage chamber for temporary storage under the guiding action of the guiding auger, solving the problem that during the filtration of a large amount of mother liquor, impurities will continuously accumulate and block the mesh holes of the first filtration layer and the second filtration layer, resulting in the inability of the mother liquor to flow quickly.

[0013] 1. In this chemical product preparation mother liquor recovery and filtration device, to avoid impurities blocking the mesh holes of the filtration frame, after the mother liquor enters the inside of the filtration frame through the liquid inlet pipe, the connecting pipe and the guiding pipe, the driving motor is started. The driving motor drives the guiding auger to rotate through the coupling at the bottom. When the guiding auger rotates, the mother liquor and impurities in the mother liquor are guided along the first filtration chamber to the temporary storage chamber at the lower side. During the guiding process of the guiding auger, the mother liquor spreads from the first filtration chamber to the second filtration chamber for secondary filtration and then flows out through the liquid outlet pipe, while the impurities in the mother liquor enter the temporary storage chamber for temporary storage under the guiding action of the guiding auger. This chemical product preparation mother liquor recovery and filtration device is provided with a guiding auger, which can guide and store impurities, effectively avoiding a large amount of blockage of the mesh holes of the filtration frame and accelerating the flow rate of the mother liquor, and significantly improving the filtration efficiency of the mother liquor;

[0014] 2. When a large amount of impurities are stored in the filter frame of the chemical preparation mother liquor recovery and filtration device and need to be cleaned, the tank cover connected to the filter tank body is opened at this time, and the tank cover, the driving motor and the guiding auger connected to the tank cover are removed. At this time, the auxiliary limiting block on the upper side of the filter frame is no longer inserted into the auxiliary limiting groove, and the filter frame is vertically lifted upward. Under the insertion action of the insertion block at the bottom of the filter frame and the docking groove, the filter frame can be easily taken out for cleaning. The chemical preparation mother liquor recovery and filtration device limits and installs the filter frame in a double-insertion manner, and the disassembly is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic cross-sectional view of the main view of the filter tank body of the present utility model;

[0016] Figure 2 is a three-dimensional structure schematic diagram of the filter tank body of the present utility model;

[0017] Figure 3 is a three-dimensional structure schematic diagram of the filter frame of the present utility model;

[0018] Figure 4 is a three-dimensional structure schematic diagram of the tank cover of the present utility model;

[0019] Figure 5 is a three-dimensional structure schematic diagram of the auxiliary limiting groove of the present utility model.

[0020] In the figure: 1. Filter tank body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 201. Connecting pipe; 202. Guiding pipe; 4. Tank cover; 5. Filter frame; 501. First filtration chamber; 502. Second filtration chamber; 503. Driving motor; 504. Guiding auger; 505. Temporary storage chamber; 6. Insertion block; 601. Docking groove; 7. Auxiliary limiting groove; 701. Auxiliary limiting block; 8. Sealing groove; 801. Sealing layer; 9. Installation groove; 901. Cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 , the present utility model provides a technical solution: a chemical preparation mother liquor recovery and filtration device, including a filter tank body 1, a liquid inlet pipe 2 and a liquid outlet pipe 3,

[0023] A liquid inlet pipe 2 is installed through the upper side of the filter tank body 1, and a liquid outlet pipe 3 is installed through the bottom of the filter tank body 1. The liquid inlet pipe 2 is connected to the guiding pipe 202 through the connecting pipe 201. One end of the guiding pipe 202 away from the liquid inlet pipe 2 is inserted through the filter frame 5. A tank cover 4 is arranged at the top of the filter tank body 1. Inside the filter frame 5, there are a first filter chamber 501, a second filter chamber 502 and a temporary storage chamber 505. The second filter chamber 502 is located outside the first filter chamber 501, and the temporary storage chamber 505 is located at the bottom of the first filter chamber 501. A driving motor 503 is installed on the top of the tank cover 4 through a locking bolt. The output end at the bottom of the driving motor 503 is connected to the top of the guiding auger 504 through a coupling. The bottom of the guiding auger 504 is rotationally connected to the filter frame 5 through a bearing seat.

[0024] During specific implementation, to avoid impurities blocking the mesh holes of the filter frame 5, when the mother liquor enters the inside of the filter frame 5 through the liquid inlet pipe 2, the connecting pipe 201 and the guiding pipe 202, start the driving motor 503. The driving motor 503 will drive the guiding auger 504 to rotate through the coupling at the bottom. When the guiding auger 504 rotates, it guides the mother liquor and the impurities in the mother liquor along the first filter chamber 501 to the temporary storage chamber 505 at the lower side. During the guiding process of the guiding auger 504, the mother liquor will spread from the first filter chamber 501 to the second filter chamber 502 for secondary filtration and then flow out from the liquid outlet pipe 3. The impurities in the mother liquor enter the temporary storage chamber 505 for temporary storage under the guiding action of the guiding auger 504. At the same time, the second filter chamber 502 is set with a narrow lower side and a wide upper side, so that the floating sundries can float on the upper side of the second filter chamber 502, reducing the blockage of the outer wall of the second filter chamber 502. This chemical product preparation mother liquor recovery and filtration device is provided with a guiding auger 504, which can guide and store impurities, effectively avoid a large amount of blockage of the mesh holes of the filter frame 5, and at the same time can accelerate the flow rate of the mother liquor, and can significantly improve the filtration efficiency of the mother liquor.

[0025] Refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 It can be known that a docking groove 601 is opened inside the filter tank body 1, and an auxiliary limiting groove 7 is opened at the bottom of the tank cover 4. The upper side of the filter frame 5 is inserted into the auxiliary limiting groove 7 through the auxiliary limiting block 701. The bottom of the filter frame 5 is inserted into the docking groove 601 through the insertion block 6. Both the insertion block 6 and the docking groove 601 are cross-shaped, and the insertion dimensions of the insertion block 6 and the docking groove 601 match. A sealing groove 8 is opened at the top of the filter tank body 1, and a sealing layer 801 is connected to the bottom of the tank cover 4. The size of the sealing layer 801 matches that of the sealing groove 8. An installation groove 9 is opened inside the tank cover 4. One side of the tank cover 4 close to the installation groove 9 is hinged to one side of the cover plate 901 through an installation block and a pin shaft.

[0026] During specific implementation, when a large amount of impurities are stored in the filter box 5 and need to be cleaned, the tank cover 4 connected to the filter tank body 1 is opened at this time, and the tank cover 4, the driving motor 503 and the guiding auger 504 connected to the tank cover 4 are removed. At this time, the auxiliary limiting block 701 on the upper side of the filter box 5 is no longer inserted into the auxiliary limiting groove 7. The filter box 5 is vertically lifted upward. Under the insertion action of the insertion block 6 at the bottom of the filter box 5 and the docking groove 601, the filter box 5 can be easily taken out for cleaning. At the same time, an installation groove 9 for conveniently observing the state of the internal mother liquor and a cover plate 901 for covering the installation groove 9 are provided inside the tank cover 4. The setting of the sealing groove 8 and the sealing layer 801 can better improve the sealing performance when the tank cover 4 is connected to the filter tank body 1. This chemical product preparation mother liquor recovery and filtration device limits and installs the filter box 5 in a double-insertion manner, and the disassembly is convenient.

[0027] In summary, when using this chemical product preparation mother liquor recovery and filtration device, the mother liquor is guided into the filter box 5 through the liquid inlet pipe 2, the connecting pipe 201 and the guiding pipe 202. The driving motor 503 is started to drive the guiding auger 504 to rotate through the coupling at the bottom, accelerating the flow rate of the mother liquor and the filtration efficiency. At the same time, the impurities are introduced into the temporary storage cavity 505 for temporary storage, effectively avoiding the blockage of the mesh holes, and the filtered mother liquor is discharged from the liquid outlet pipe 3. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mother liquid recovery and filtering device for preparing chemical products, comprising a filtering tank body (1), a liquid inlet pipe (2) and a liquid outlet pipe (3), characterized in that: A liquid inlet pipe (2) is installed through the upper side of the filter tank body (1), and a liquid outlet pipe (3) is installed through the bottom of the filter tank body (1). The liquid inlet pipe (2) is connected to a guide pipe (202) via a connecting pipe (201), and one end of the guide pipe (202) away from the liquid inlet pipe (2) is inserted through the filter frame (5). A tank cover (4) is arranged on the top of the filter tank body (1).

2. The chemical product preparation mother liquor recovery and filtration device according to claim 1, characterized in that: The filter frame (5) is provided with a first filter cavity (501), a second filter cavity (502) and a temporary storage cavity (505) inside, wherein the second filter cavity (502) is located outside the first filter cavity (501), and the temporary storage cavity (505) is located at the bottom of the first filter cavity (501).

3. The chemical product preparation mother liquor recovery and filtration device according to claim 1, characterized in that: A driving motor (503) is installed on the top of the tank cover (4) via a locking bolt, and the output end of the bottom of the driving motor (503) is connected to the top of the guide auger (504) via a coupling, and the bottom of the guide auger (504) is rotatably connected to the filter frame (5) via a bearing seat.

4. The chemical product preparation mother liquor recovery and filtration device according to claim 1, characterized in that: The filter tank body (1) is provided with a docking groove (601) inside, the tank cover (4) is provided with an auxiliary limiting groove (7) at the bottom, and the upper side of the filter frame (5) is plugged into the auxiliary limiting groove (7) via an auxiliary limiting block (701).

5. The chemical product preparation mother liquor recovery and filtration device according to claim 4, characterized in that: The bottom of the filter frame (5) is plugged into the docking groove (601) via a plug-in block (6); the plug-in block (6) and the docking groove (601) are both cross-shaped, and the plug-in dimensions of the plug-in block (6) and the docking groove (601) match.

6. The chemical product preparation mother liquor recovery and filtration device according to claim 4, characterized in that: The top of the filter tank body (1) is provided with a sealing groove (8), the bottom of the tank cover (4) is connected with a sealing layer (801), the size of the sealing layer (801) matches that of the sealing groove (8), a mounting groove (9) is provided inside the tank cover (4), and a side of the tank cover (4) close to the mounting groove (9) is hinged to a side of a cover plate (901) via a mounting block and a pin shaft.

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