Sodium dehydroacetate mother liquor recovery device

By designing a ring-shaped filter and a stirring rod, the problems of continuous filtration and sedimentation in existing devices were solved, enabling efficient recovery and stable storage of sodium dehydroacetate mother liquor.

CN223969628UActive Publication Date: 2026-03-06HUBEI ZHONGSHUI CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing sodium dehydroacetate mother liquor recovery device cannot achieve continuous filtration, requiring shutdown for cleaning. Furthermore, the mother liquor precipitates when left to stand, affecting recovery efficiency and chemical reaction effect. Filter crystals tend to adhere to the pipe wall.

Method used

The system employs a ring-shaped filter, a C-shaped platform, a motor, gears, and transmission components to achieve continuous filtration of the mother liquor and automatic removal of crystals. A stirring rod and a vibrating material assembly prevent the mother liquor from settling and promote the rolling off of crystals.

Benefits of technology

It enables continuous filtration and stirring of the mother liquor, improves recovery efficiency, prevents crystal adhesion, and ensures stable mother liquor quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sodium dehydroacetate mother liquor recovery device which comprises a recovery box, a storage groove is formed in the bottom of the interior of the recovery box, a C-shaped table is arranged on the top of one side of the interior of the recovery box, a motor is arranged in the middle of the top of the recovery box, and a rotating rod is arranged at the output end of the motor. A rotary table is arranged at the top of the outer side of the rotary rod, and an annular filter screen is arranged at the bottom of the outer side of the rotary table; through mutual cooperation of the annular filter screen, the C-shaped table, the motor, the gear A, the gear B, the transmission assembly, the sleeve rod, the scraping rod and the transmission rod, when the device filters the sodium dehydroacetate mother liquor, the mother liquor can be filtered by continuously rotating the annular filter screen, filtered impurities can be continuously conveyed to the other side, and meanwhile, the annular filter screen is controlled to rotate, so that the impurities can be continuously conveyed to the other side. When the mother liquor is filtered, the scraping rod can be driven to rotate in the opposite direction, so that filtered crystals can be swept away, continuous filtration of the mother liquor is realized, and the recovery efficiency of the mother liquor is improved.
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Description

Technical Field

[0001] This utility model relates to the field of sodium dehydroacetate mother liquor recovery technology, specifically a sodium dehydroacetate mother liquor recovery device. Background Technology

[0002] Sodium dehydroacetate is a white or nearly white crystalline powder, non-toxic and odorless. It is readily soluble in water, glycerol, and propylene glycol, and slightly soluble in ethanol and acetone. Its aqueous solution does not change at 120°C and remains stable and neutral or slightly alkaline after heating at 120°C for 2 hours. It has good light and heat resistance and can be used as a preservative, insecticide, and food additive. In the production of sodium dehydroacetate, it is necessary to separate the crystals after the reaction from the mother liquor, which requires a mother liquor recovery device.

[0003] A patent with authorization announcement number "CN217909304U" discloses a device for recovering sodium dehydroacetate mother liquor, including a main housing; a rotating shaft is fixedly connected to the bottom end of the motor's main shaft; four vertical protrusions are provided on the outer side of the lower part of the rotating shaft, and a vertical circular hole with a diameter equal to the cross-sectional diameter of the rotating shaft is provided in the middle of the connecting block, and four vertical grooves corresponding to the vertical protrusions on the outer side of this vertical circular hole are also provided. In this invention, the rotating shaft can both drive the sealing plug to move up and down and drive the filter cartridge to rotate. When removing the crystalline powder from the filter cartridge, it is not necessary to scoop it out from the top; it can be discharged directly from the bottom, making it more convenient to use. Moreover, the high-speed rotation during the removal process reduces the likelihood of residue.

[0004] However, this device has the following shortcomings:

[0005] 1. The above device cannot continuously filter sodium dehydroacetate mother liquor during filtration and recovery. After a period of filtration, it is necessary to stop the machine to clean the filtered crystals, which greatly reduces the recovery efficiency of sodium dehydroacetate mother liquor.

[0006] 2. When storing the recovered sodium dehydroacetate mother liquor, the above-mentioned device failed to stir the mother liquor, resulting in the mother liquor being left to stand for a long time and easily settling to the bottom, which affected the chemical reaction effect of the sodium dehydroacetate mother liquor. In addition, when the filtered crystals were discharged, there was a lack of agitation measures, and the crystals easily adhered to the pipe wall and could not be easily discharged. Utility Model Content

[0007] The purpose of this invention is to provide a sodium dehydroacetate mother liquor recovery device to solve the existing problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sodium dehydroacetate mother liquor recovery device, comprising a recovery tank, a storage tank at the bottom of the recovery tank, a C-shaped platform at the top of one side of the recovery tank, a motor at the center of the top of the recovery tank, a rotating rod at the output end of the motor, a turntable at the top of the outer side of the rotating rod, an annular filter at the bottom of the outer side of the turntable, the annular filter being fitted inside the C-shaped platform, a feed pipe at one side of the top of the recovery tank, the bottom of the feed pipe extending to the inner side of the C-shaped platform, and a stirring rod at the bottom of the rotating rod;

[0009] A transmission rod is fitted in the middle of the top of the inside of the recycling bin. A sleeve rod is fitted on the top of the inside of the recycling bin away from the feed pipe. Gear A is provided on the top of the outer side of the rotating rod. Gear B, which meshes with gear A, is provided on the bottom of the transmission rod. A transmission assembly that is connected to the sleeve rod is provided on the top of the outer side of the transmission rod. A scraper that cooperates with the annular filter is provided on the bottom of the sleeve rod. A guide plate is provided on one side of the bottom of the C-shaped platform. A collection box is provided on one side of the recycling bin. A communication port connected to the recycling bin is provided on one side of the collection box.

[0010] A vibrating material assembly is provided on one side of the top of the storage tank.

[0011] Preferably, the vibrating material assembly includes a pusher block, a pusher rod, and an impact head. A pusher rod is sleeved on one side of the top of the storage tank. A pusher block that cooperates with the stirring rod is provided at the bottom of the pusher rod. An impact head that cooperates with the guide plate is provided at the top of the pusher rod, which can vibrate the guide plate.

[0012] Preferably, the transmission assembly includes a belt and two sets of pulleys. The top of both the transmission rod and the sleeve rod is provided with pulleys, and the outer sides of the two sets of pulleys are jointly fitted with a belt for transmitting power to the sleeve rod.

[0013] Preferably, the push block is hemispherical in shape, and a limiting block is provided on the top of the outer side of the push rod, which can cooperate with the stirring rod. The limiting block can restrict the range of motion of the push rod.

[0014] Preferably, an arc-shaped groove is provided at the bottom of the inner side of the C-shaped platform, and a sliding ring that cooperates with the arc-shaped groove is provided on the outer side of the annular filter screen, which can guide the annular filter screen so that the annular filter screen can rotate along the inner side of the C-shaped platform.

[0015] Preferably, a protective compartment is provided in the middle of the top of the recycling bin, and the protective compartment is located outside the motor, sleeve rod and transmission rod, for protecting the motor and transmission components.

[0016] Preferably, a door is provided at the bottom of one side of the collection box to facilitate centralized cleaning of collected impurities.

[0017] Preferably, the bottom of the recycling tank away from the storage tank is provided with a liquid outlet pipe, and the outside of the liquid outlet pipe is provided with a sealing cap for discharging the recycled mother liquor in the storage tank for reuse.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the sodium dehydroacetate mother liquor recovery device;

[0019] 1. Through the cooperation between the annular filter, C-shaped platform, motor, gear A, gear B, transmission assembly, sleeve rod, scraper rod and transmission rod, the device can filter the mother liquor of sodium dehydroacetate by continuously rotating the annular filter. The filtered impurities can be continuously transported to the other side. At the same time, when the annular filter rotates, it can drive the scraper to rotate in the opposite direction, thereby removing the filtered crystals. This achieves continuous filtration of the mother liquor and improves the recovery efficiency of the mother liquor.

[0020] 2. Through the cooperation between the stirring rod, storage tank, push block, push rod and impact head, the device can stir the mother liquor after filtration by stirring the stirring rod to prevent the mother liquor from settling and improve its effectiveness. When the stirring rod stirs the mother liquor, it can intermittently push the impact head to impact the guide plate, promote the filter crystals to roll into the collection box, facilitate centralized treatment, and reduce the occurrence of crystal adhesion. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a front sectional view of the present invention;

[0023] Figure 3 This is a top sectional view of the annular filter and C-shaped platform of this utility model;

[0024] Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0025] In the diagram: 1. Recycling bin; 2. Annular filter screen; 3. Turntable; 4. C-shaped platform; 5. Feed pipe; 6. Motor; 7. Gear A; 8. Gear B; 9. Transmission assembly; 10. Sleeve rod; 11. Scraper rod; 12. Guide plate; 13. Connecting port; 14. Collection bin; 15. Rotating rod; 16. Stirring rod; 17. Storage tank; 18. Push block; 19. Push rod; 20. Impact head; 21. Transmission rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 The present invention provides an embodiment of a sodium dehydroacetate mother liquor recovery device, comprising a recovery tank 1, a storage tank 17 at the bottom inside the recovery tank 1, a C-shaped platform 4 at the top of one side inside the recovery tank 1, a motor 6 at the middle of the top of the recovery tank 1, a rotating rod 15 at the output end of the motor 6, a turntable 3 at the top outside the rotating rod 15, an annular filter 2 at the bottom outside the turntable 3, the annular filter 2 being fitted inside the C-shaped platform 4, a feed pipe 5 at one side of the top of the recovery tank 1, the bottom of the feed pipe 5 extending to the inside of the C-shaped platform 4, and a stirring rod 16 at the bottom of the rotating rod 15.

[0028] A transmission rod 21 is fitted in the middle of the top of the inside of the recycling box 1. A sleeve rod 10 is fitted on the side of the top of the inside of the recycling box 1 away from the feed pipe 5. A gear A7 is set on the top of the outside of the rotating rod 15. A gear B8 that meshes with the gear A7 is set on the bottom of the transmission rod 21. A transmission component 9 that is connected to the sleeve rod 10 is set on the top of the outside of the transmission rod 21. A scraper 11 that cooperates with the annular filter screen 2 is set on the bottom of the sleeve rod 10. A guide plate 12 is set on one side of the bottom of the C-shaped platform 4. A collection box 14 is set on one side of the recycling box 1. A communication port 13 that communicates with the recycling box 1 is set on one side of the collection box 14. A door is set on the bottom of one side of the collection box 14 to facilitate the centralized cleaning of collected impurities.

[0029] A vibrating assembly is provided on one side of the top of the storage tank 17. The vibrating assembly includes a pusher block 18, a pusher rod 19, and an impact head 20. The pusher rod 19 is sleeved on one side of the top of the storage tank 17. The bottom of the pusher rod 19 is provided with a pusher block 18 that cooperates with the stirring rod 16. The top of the pusher rod 19 is provided with an impact head 20 that cooperates with the guide plate 12. The guide plate 12 can be vibrated. When the stirring rod 16 rotates, it can push the impact head 20 to intermittently impact the guide plate 12 to promote the flow of filtered crystals into the collection box 14.

[0030] Furthermore, the transmission assembly 9 includes a belt and two sets of pulleys. The top of the outer side of the transmission rod 21 and the sleeve rod 10 are both provided with pulleys, and the outer side of the two sets of pulleys is covered with a belt for transmitting power to the sleeve rod 10. When the transmission rod 21 rotates, it can drive one set of pulleys to rotate. One set of pulleys can drive the other set of pulleys to rotate the sleeve rod 10 through the transmission of the belt.

[0031] Furthermore, the push block 18 is hemispherical in shape, and a limiting block is provided on the top of the outer side of the push rod 19, which can cooperate with the stirring rod 16. The limiting block can restrict the range of motion of the push rod 19.

[0032] Furthermore, an arc-shaped groove is provided at the bottom of the inner side of the C-shaped platform 4, and a sliding ring that cooperates with the arc-shaped groove is provided on the outer side of the annular filter screen 2, which can guide the annular filter screen 2 so that the annular filter screen 2 can rotate along the inner side of the C-shaped platform 4.

[0033] Furthermore, a protective compartment is provided in the middle of the top of the recycling bin 1, and the protective compartment is located outside the motor 6, sleeve rod 10 and transmission rod 21, which is used to protect the motor 6 and transmission assembly 9 and other components.

[0034] Furthermore, a liquid outlet pipe is provided at the bottom of the recovery tank 1 on the side away from the storage tank 17, and a sealing cap is provided on the outside of the liquid outlet pipe to discharge the recovered mother liquor in the storage tank 17 for reuse.

[0035] Working principle: When in use, the motor 6 can be started to run. After the sodium dehydroacetate solution is transported to the recovery tank 1 through the feed pipe 5, the solution can fall onto the annular filter screen 2 between the C-shaped platform 4 and the turntable 3. The crystals in the solution can be filtered out through the annular filter screen 2. The filtered mother liquor can then fall into the storage tank 17 for storage. The motor 6 can drive the rotating rod 15 to rotate, which in turn drives the turntable 3 to rotate. The turntable 3 then drives the annular filter screen 2, so that the annular filter screen 2 can continuously transport the filtered crystals to one side. At the same time, the rotating rod 15 can drive the transmission rod 21 to rotate through the meshing of gear A7 and gear B8. After being received, the transmission rod 21 can drive the sleeve rod 10 to rotate through the transmission component 9. The sleeve rod 10 can drive the scraper rod 11 to rotate in the opposite direction to the annular filter screen 2. Thus, when the annular filter screen 2 transports the filtered crystals to one side of the scraper rod 11, the scraper rod 11 can sweep away the filtered crystals from the annular filter screen 2, thereby realizing continuous filtration of the mother liquor.

[0036] The filtered mother liquor can be recycled back into the storage tank 17 for reuse. The rotating rod 15 can drive the stirring rod 16 to rotate, stirring the mother liquor and preventing it from settling. The filtered crystals can be swept onto the guide plate 12 and rolled in the guide box 14 of the guide plate 12. At the same time, when the stirring rod 16 rotates to stir the mother liquor, it can intermittently push the push block 18 to move upward. Then the push block 18 drives the push rod 19, so that the impact head 20 can intermittently impact the bottom of the guide plate 12, causing the guide plate 12 to vibrate and promote the crystals to roll off.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A sodium dehydroacetate mother liquor recovery device comprising a recovery tank (1), characterized in that: The bottom of the recycling box (1) is provided with a storage groove (17), the top of one side of the recycling box (1) is provided with a C-shaped table (4), the middle of the top of the recycling box (1) is provided with a motor (6), the output end of the motor (6) is provided with a rotating rod (15), the top of the outer side of the rotating rod (15) is provided with a rotating table (3), the bottom of the outer side of the rotating table (3) is provided with an annular filter screen (2), the annular filter screen (2) is sleeved on the inner side of the C-shaped table (4), one side of the top of the recycling box (1) is provided with a feeding pipe (5), the bottom of the feeding pipe (5) extends to the inner side of the C-shaped table (4), and the bottom of the rotating rod (15) is provided with a stirring rod (16). The middle of the top of the recycling box (1) is sleeved with a transmission rod (21), one side of the top of the recycling box (1) away from the feeding pipe (5) is sleeved with a sleeve rod (10), the top of the outer side of the rotating rod (15) is provided with a gear A (7), the bottom of the transmission rod (21) is provided with a gear B (8) engaged with the gear A (7), the top of the outer side of the transmission rod (21) is provided with a transmission assembly (9) in transmission connection with the sleeve rod (10), the bottom of the sleeve rod (10) is provided with a scraping rod (11) matched with the annular filter screen (2), one side of the bottom of the C-shaped table (4) is provided with a flow guide plate (12), one side of the recycling box (1) is provided with a collection box (14), and one side of the collection box (14) is provided with a communication port (13) in communication with the recycling box (1). One side of the top of the storage groove (17) is provided with a material vibrating assembly.

2. The sodium dehydroacetate mother liquor recovery apparatus according to claim 1, characterized in that: The material vibrating assembly comprises a push block (18), a push rod (19) and a striking head (20), one side of the top of the storage groove (17) is sleeved with the push rod (19), the bottom of the push rod (19) is provided with the push block (18) matched with the stirring rod (16), and the top of the push rod (19) is provided with the striking head (20) matched with the flow guide plate (12).

3. The sodium dehydroacetate mother liquor recovery apparatus of claim 1, wherein: The transmission assembly (9) comprises a belt and two groups of belt pulleys, the top of the outer side of the transmission rod (21) and the sleeve rod (10) is provided with a belt pulley, and the outer sides of the two groups of belt pulleys are jointly sleeved with a belt.

4. The sodium dehydroacetate mother liquor recovery apparatus of claim 2, wherein: The push block (18) is in a semispherical shape, and the top of the outer side of the push rod (19) is provided with a limiting block.

5. The sodium dehydroacetate mother liquor recovery apparatus of claim 1, wherein: The bottom of the inner side of the C-shaped table (4) is provided with an arc-shaped groove, and the outer side of the annular filter screen (2) is provided with a sliding ring matched with the arc-shaped groove.

6. The sodium dehydroacetate mother liquor recovery apparatus of claim 1, wherein: The middle of the top of the recycling box (1) is provided with a protective bin, and the protective bin is located on the outer side of the motor (6), the sleeve rod (10) and the transmission rod (21).

7. The sodium dehydroacetate mother liquor recovery apparatus of claim 1, wherein: The bottom of one side of the collection box (14) is provided with a bin door.

8. The sodium dehydroacetate mother liquor recovery apparatus of claim 1, wherein: The bottom of the side of the recycling box (1) away from the storage groove (17) is provided with a liquid outlet pipe, and the outer side of the liquid outlet pipe is provided with a sealing cover.

Citation Information

Patent Citations

  • Sodium dehydroacetate mother liquor recovery device

    CN217909304U