Solvent centrifugal removal device for carboxymethyl cellulose preparation

Abstract

The utility model discloses a solvent centrifugal removal device for carboxymethyl cellulose preparation, which belongs to the technical field of carboxymethyl cellulose preparation and comprises a protective cylinder, a centrifugal cylinder is slidably sleeved in the protective cylinder, a top cover is fixedly mounted at the top end of the centrifugal cylinder, and a gear ring is fixedly mounted at the top end of the top cover. A limiting sliding rail is fixedly installed at the bottom end of the gear ring. According to the centrifugal liquid removal device, the driving gear can drive the gear ring to rotate by starting the driving motor, so that the centrifugal liquid removal effect of the centrifugal barrel on carboxymethyl cellulose slurry is further achieved, and the spiral flow deflectors are fixedly connected to the circumferential inner wall of the protective barrel in a downward inclined manner; liquid scraping shovels are fixedly installed at the upper end of the outer wall of one side of the supporting rod in an inclined and downward mode, and the multiple liquid scraping shovels rotate along the inner wall of the bottom end of the protection barrel in the centrifugal liquid removal process of the centrifugal barrel; and accumulated liquid at the bottom end of the protection cylinder is completely discharged.

Description

Technical Field

[0001] This utility model relates to the field of carboxymethyl cellulose preparation technology, and in particular to a solvent centrifugation removal device for the preparation of carboxymethyl cellulose. Background Technology

[0002] Carboxymethyl cellulose (CMC) is an anionic cellulose ether, a non-toxic, odorless, white, flocculent powder. It is stable, readily soluble in water, and its aqueous solution is a neutral or alkaline, transparent, viscous liquid. It is soluble in other water-soluble adhesives and resins, but insoluble in organic solvents such as ethanol. Carboxymethyl cellulose can be used as an adhesive, thickener, suspending agent, emulsifier, dispersant, stabilizer, and sizing agent. Carboxymethyl cellulose (CMC) is the most widely produced, used, and convenient cellulose ether, commonly known as "industrial monosodium glutamate." During its preparation, filtration equipment is used to remove impurities and fibers from the carboxymethyl cellulose slurry, resulting in a relatively pure slurry.

[0003] A search revealed a patent with publication number CN221934210U entitled "A Centrifuge for the Production of Sodium Carboxymethyl Cellulose." The patent addresses the issue of mediocre centrifugation performance, cumbersome installation, and the inability to quickly lock the centrifuge. It proposes a solution using a locking structure and locking holes for rapid installation of the centrifuge tank, with the locking fan and locking block enabling quick locking. This significantly reduces the labor and time costs associated with the centrifuge. However, the following drawbacks remain: solvent tends to accumulate at the bottom of the centrifuge tank, making complete drainage difficult. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a solvent centrifugation removal device for the preparation of carboxymethyl cellulose.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A solvent centrifugation removal device for the preparation of carboxymethyl cellulose includes a protective cylinder, a centrifuge cylinder slidably sleeved inside the protective cylinder, a top cover fixedly installed at the top of the centrifuge cylinder, a toothed ring fixedly installed at the top of the top cover, a limit rail fixedly installed at the bottom of the toothed ring, the top of the protective cylinder slidably inserted into the limit rail, a frustum fixedly installed in the middle of the bottom inner wall of the protective cylinder, a drain channel fixedly installed at one end of the bottom of the protective cylinder, a guide plate fixedly connected to the inner circumference of the protective cylinder at an angle downwards, a discharge port fixedly provided in the middle of the bottom of the centrifuge cylinder, and the top of the discharge port circumference rotatably inserted into the middle of the frustum via a bearing, a plurality of support rods at equal angles fixedly installed at the bottom of the centrifuge cylinder, each support rod being obtuse-angled, a plurality of ball bearings rotatably installed at the bottom of the support rods, and a scraper fixedly installed at the upper end of the outer wall of one side of the support rod at an angle downwards.

[0007] Preferably, the lower end of the outer circumference of the protective cylinder is fixedly connected to multiple support frames at equal angles, and a pressure-distributing counterweight ring is fixedly installed between the bottom ends of the multiple support frames.

[0008] Preferably, a fixing plate is fixedly installed on the upper end of the outer circumference of the protective cylinder, and a drive motor is fixedly installed on the top of the fixing plate. A drive gear is fixedly installed on the output end of the drive motor, and the circumference of the drive gear meshes with the circumference of the gear ring.

[0009] Preferably, the guide vane is spiral-shaped, and both the outer wall of the guide vane and the inner circumferential wall of the protective cylinder are provided with a hydrophobic coating.

[0010] Preferably, a stirring motor is fixedly installed at the top center of the top cover, and a mixing rack is fixedly installed at the output end of the stirring motor. A central column is fixedly installed in the middle of the mixing rack, and a spiral feeding blade is fixedly installed at the bottom of the central column.

[0011] Preferably, the spiral feed blade is conical, wider at the top and narrower at the bottom.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention proposes a solvent centrifugation removal device for the preparation of carboxymethyl cellulose. By engaging a drive gear with a gear ring, starting the drive motor causes the drive gear to rotate, thereby achieving centrifugal desolventizing of the carboxymethyl cellulose slurry. A spiral guide vane is fixedly connected to the inclined inner wall of the protective cylinder, helping to slide liquid droplets ejected from the centrifuge and those adhering to the inner wall of the protective cylinder down the guide vane to the drainage channel. Multiple ball bearings are rotatably installed at the bottom of the support rod, and a scraper is fixedly installed at the inclined upper end of one side of the support rod. This ensures stable rotation of the centrifuge inside the protective cylinder and allows the scrapers to rotate along the inner wall of the bottom of the protective cylinder during centrifugal desolventizing, thus completely draining the accumulated liquid at the bottom of the protective cylinder. Furthermore, both the outer wall of the guide vane and the inner wall of the protective cylinder are coated with a hydrophobic coating to prevent liquid droplet retention.

[0014] This invention proposes a solvent centrifugal desolventizing device for the preparation of carboxymethyl cellulose. A stirring motor is fixedly installed at the top center of the top cover, and a mixing rack is fixedly installed at the output end of the stirring motor. A central column is fixedly installed in the middle of the mixing rack, and a conical spiral feeding blade with a wider top and narrower bottom is fixedly installed at the bottom of the central column. When the stirring motor is started, the mixing rack mixes the carboxymethyl cellulose slurry, which helps to accelerate the centrifugal desolventizing speed of carboxymethyl cellulose. After the centrifugal desolventizing of carboxymethyl cellulose is completed, the rotating spiral feeding blade helps to discharge the material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a solvent centrifugation removal device for the preparation of carboxymethyl cellulose proposed in this utility model;

[0016] Figure 2 This is a top view of the protective cylinder of a solvent centrifugal removal device for the preparation of carboxymethyl cellulose proposed in this utility model.

[0017] Figure 3 This is a bottom view of the centrifuge cylinder of a solvent centrifugation removal device for the preparation of carboxymethyl cellulose proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the mixing rack of a solvent centrifugation descrambling device for the preparation of carboxymethyl cellulose proposed in this utility model.

[0019] In the diagram: 1. Protective cylinder, 2. Support frame, 3. Pressure counterweight ring, 4. Fixing plate, 5. Drive motor, 6. Drive gear, 7. Centrifuge cylinder, 8. Top cover, 9. Gear ring, 10. Limiting slide rail, 11. Stirring motor, 12. Mixing rack, 13. Intermediate column, 14. Spiral feeder blade, 15. Drainage channel, 16. Guide vane, 17. Frustum base, 18. Discharge port, 19. Support rod, 20. Ball bearing, 21. Scraper. Detailed Implementation

[0020] Reference Figure 1-4 A solvent centrifugation removal device for the preparation of carboxymethyl cellulose includes a protective cylinder 1, a centrifuge cylinder 7 slidably sleeved inside the protective cylinder 1, a top cover 8 fixedly installed at the top of the centrifuge cylinder 7, a toothed ring 9 fixedly installed at the top of the top cover 8, a limiting slide rail 10 fixedly installed at the bottom of the toothed ring 9, the top of the protective cylinder 1 slidably inserted into the limiting slide rail 10, a frustum base 17 fixedly installed in the middle of the bottom inner wall of the protective cylinder 1, a drain channel 15 fixedly installed at one bottom end of the protective cylinder 1, a guide plate 16 fixedly connected to the inner circumference of the protective cylinder 1 at an angle downwards, a discharge port 18 fixedly provided in the middle of the bottom end of the centrifuge cylinder 7, and the top of the discharge port 18 rotatably inserted into the middle of the frustum base 17 through a bearing, a plurality of support rods 19 at equal angles fixedly installed at the bottom circumference of the centrifuge cylinder 7, each support rod 19 being obtuse-angled, a plurality of ball bearings 20 rotatably installed at the bottom end of the support rod 19, and a scraper 21 fixedly installed at the upper end of the outer wall of one side of the support rod 19 at an angle downwards.

[0021] In this utility model, multiple support frames 2 at equal angles are fixedly connected to the lower end of the outer circumference of the protective cylinder 1, and a pressure-distributing counterweight ring 3 is fixedly installed between the bottom ends of the multiple support frames 2, which helps to improve the stability of the protective cylinder 1 and the centrifuge cylinder 7 during operation.

[0022] A fixing plate 4 is fixedly installed on the upper end of the outer circumference of the protective cylinder 1, and a drive motor 5 is fixedly installed on the top of the fixing plate 4. A drive gear 6 is fixedly installed on the output end of the drive motor 5, and the circumference of the drive gear 6 meshes with the circumference of the gear ring 9.

[0023] The guide vane 16 is spiral-shaped, and both the outer wall of the guide vane 16 and the inner circumferential wall of the protective cylinder 1 are provided with a hydrophobic coating.

[0024] A stirring motor 11 is fixedly installed at the top center of the top cover 8, and a mixing rack 12 is fixedly installed at the output end of the stirring motor 11. A middle column 13 is fixedly installed in the middle of the mixing rack 12, and a spiral feeding blade 14 is fixedly installed at the bottom of the middle column 13.

[0025] The spiral feed blade 14 is conical, wider at the top and narrower at the bottom.

[0026] Working principle: The drive gear 6 meshes with the gear ring 9, and the drive motor 5 is started to make the drive gear 6 rotate with the gear ring 9, thereby achieving the centrifugal desolventizing effect of the centrifugal cylinder 7. The inner wall of the protective cylinder 1 is inclined downward and fixedly connected with a spiral guide plate 16, which helps to slide the liquid droplets thrown out by the centrifugal cylinder 7 and the liquid droplets adhering to the inner wall of the protective cylinder 1 along the guide plate 16 to the drainage channel 15. Multiple ball bearings 20 are rotatably installed at the bottom of the support rod 19, and a scraper 21 is inclined downward and fixedly installed on the upper end of the outer wall of one side of the support rod 19. This not only makes the centrifugal cylinder 7 rotate stably inside the protective cylinder 1, but also makes multiple scrapers 21 rotate along the inner wall of the bottom of the protective cylinder 1 during the centrifugal desolventizing process, thereby completely draining the accumulated liquid at the bottom of the protective cylinder 1. The outer wall of the guide plate 16 and the inner wall of the protective cylinder 1 are both provided with a hydrophobic coating to prevent liquid droplet retention.

[0027] A stirring motor 11 is fixedly installed at the top center of the top cover 8, and a mixing rack 12 is fixedly installed at the output end of the stirring motor 11. A middle column 13 is fixedly installed in the middle of the mixing rack 12, and a conical spiral feeding blade 14 with a wider top and narrower bottom is fixedly installed at the bottom of the middle column 13. When the stirring motor 11 is started, the mixing rack 12 mixes the carboxymethyl cellulose slurry, which helps to speed up the centrifugal dehydration of carboxymethyl cellulose. After the carboxymethyl cellulose is centrifuged and dehydrated, the rotating spiral feeding blade 14 helps to discharge the material.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solvent centrifugation removal device for the preparation of carboxymethyl cellulose, comprising a protective cylinder (1), wherein a centrifuge cylinder (7) is slidably sleeved inside the protective cylinder (1), and a top cover (8) is fixedly installed on the top of the centrifuge cylinder (7), a toothed ring (9) is fixedly installed on the top of the top cover (8), and a limiting slide rail (10) is fixedly installed on the bottom of the toothed ring (9), wherein the top of the protective cylinder (1) is slidably inserted into the limiting slide rail (10), characterized in that, A frustum base (17) is fixedly installed in the middle of the inner wall of the bottom end of the protective cylinder (1). A drain channel (15) is fixedly installed at one end of the bottom end of the protective cylinder (1). A guide plate (16) is fixedly connected to the inner wall of the protective cylinder (1) at an angle downwards. A discharge port (18) is fixedly provided in the middle of the bottom end of the centrifuge cylinder (7). The top of the discharge port (18) is rotatably inserted into the middle of the frustum base (17) through a bearing. Multiple support rods (19) with equal angles are fixedly installed at the bottom of the centrifuge cylinder (7). Each support rod (19) is obtuse-angled. Multiple ball bearings (20) are rotatably installed at the bottom end of the support rod (19). A scraper (21) is fixedly installed at the upper end of the outer wall of one side of the support rod (19) at an angle downwards.

2. The solvent centrifugation removal apparatus for the preparation of carboxymethyl cellulose according to claim 1, characterized in that, The lower end of the outer circumference of the protective cylinder (1) is fixedly connected to multiple support frames (2) at equal angles, and a pressure-distributing counterweight ring (3) is fixedly installed between the bottom ends of the multiple support frames (2).

3. The solvent centrifugation removal apparatus for the preparation of carboxymethyl cellulose according to claim 1, characterized in that, A fixing plate (4) is fixedly installed on the upper end of the outer circumference of the protective cylinder (1), and a drive motor (5) is fixedly installed on the top of the fixing plate (4). A drive gear (6) is fixedly installed at the output end of the drive motor (5), and the circumference of the drive gear (6) meshes with the circumference of the gear ring (9).

4. The solvent centrifugation removal apparatus for the preparation of carboxymethyl cellulose according to claim 1, characterized in that, The guide vane (16) is spiral-shaped, and both the outer wall of the guide vane (16) and the inner circumference of the protective cylinder (1) are provided with a hydrophobic coating.

5. The solvent centrifugation removal apparatus for the preparation of carboxymethyl cellulose according to claim 1, characterized in that, A stirring motor (11) is fixedly installed at the top center of the top cover (8), and a mixing rack (12) is fixedly installed at the output end of the stirring motor (11). A middle column (13) is fixedly installed in the middle of the mixing rack (12), and a spiral feeding blade (14) is fixedly installed at the bottom of the middle column (13).

6. The solvent centrifugation removal apparatus for the preparation of carboxymethyl cellulose according to claim 5, characterized in that, The spiral feed blade (14) is conical, wider at the top and narrower at the bottom.

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