Grinding device for polyanionic cellulose production

Abstract

The utility model discloses a grinding device for polyanionic cellulose production, which belongs to the technical field of polyanionic cellulose production and comprises a grinding box, a grinding disc, an air bellow, a material collecting mechanism and an air pipe. Wherein the grinding disc is arranged in the grinding box, and a grinding part is arranged on the grinding disc. The material collecting mechanism is arranged in the air bellow and used for collecting materials conveyed into the air bellow. The air pipe is provided with a control valve and used for connecting the grinding box and the air boxes and connecting the two adjacent air boxes. According to the polyanionic cellulose grinding and collecting device, materials in the grinding box are ground in advance, finally, the materials are conveyed into different air boxes through the air pipes, collection of the polyanionic cellulose materials is achieved through the material collecting mechanism, and the grinding and collecting efficiency is improved. Moreover, the collection of polyanionic cellulose materials with different particle sizes can be realized by replacing different material collecting mechanisms, so that different production requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of polyanionic cellulose technology, specifically to a grinding device for the production of polyanionic cellulose. Background Technology

[0002] The raw materials for polyanionic cellulose are usually in fibrous or powder form. Regardless of whether they are fibrous or powdered, the particle size of the polyanionic cellulose raw materials does not meet production requirements. Therefore, they need to be ground before proceeding to the next process. This necessitates the use of grinding equipment.

[0003] For example, the utility model patent with authorization announcement number CN220919493U discloses a grinding device for producing polyanionic cellulose. This device includes a grinding chamber, with a filter plate, a guide frame, and a grinding frame fixedly connected to the inner wall of the grinding chamber from top to bottom. This grinding device for producing polyanionic cellulose uses a servo motor output to drive a drive rod and roller to rotate, applying force to the drive shaft. This allows the drive shaft to drive two sets of moving rods, a crushing plate, and crushing teeth to reciprocate vertically relative to the grinding chamber and a fixed cylinder, thus facilitating the crushing of large-particle-size polyanionic cellulose and enabling more effective grinding of the polyanionic cellulose.

[0004] However, the drawback of this prior art is that the polyanionic cellulose ground by the device is collected uniformly, which results in polyanionic cellulose products with different particle sizes being mixed together and unable to be separated. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a grinding device for the production of polyanionic cellulose, which solves the problem in the prior art where polyanionic cellulose particles of different sizes are mixed together and cannot be separated.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a grinding device for the production of polyanionic cellulose, comprising: a grinding box and a grinding disc disposed in the grinding box, wherein the grinding disc is provided with a grinding part for grinding the material on the grinding disc; a wind box, wherein the wind box is provided with a material collecting mechanism for collecting the material in the wind box; and a duct with a control valve for connecting the grinding box and the wind box, wherein two adjacent wind boxes are also connected by a duct.

[0007] Optionally, the edge of the grinding disc is provided with a toothed ring, the outer periphery of the grinding part is fixed with a toothed part that meshes with the toothed ring, and the grinding part is provided with a crank connecting rod, which is driven to rotate by a motor.

[0008] Optionally, the grinding disc is further provided with a gear, which meshes with a gear meshing part, and the gear is provided with a stirring part, which is rotatably connected to the grinding box.

[0009] Optionally, the toothed ring has a beveled edge on the side away from the grinding disc, and the beveled edge is fixed to the inner wall of the grinding chamber.

[0010] Optionally, the material collection mechanism includes several air ducts suspended inside the air box. The air ducts have a hollow inner cavity inside, and several air ports communicating with the hollow inner cavity are opened on the surface of the air ducts. Material collection filter bags are fitted around the air ducts.

[0011] Optionally, the air box is provided with a cover, the cover is hollow inside, one end of the cover is connected to the hollow inner cavity of the air duct, and the other end is connected to a second fan.

[0012] Optionally, a blower is installed on the air duct between the grinding box and the air box, and the blower is used to transport the material ground in the grinding box to the air box.

[0013] Optionally, the grinding apparatus further includes a base plate on which a support member is provided for supporting the grinding chamber, the blower, and the air box.

[0014] Optionally, the grinding device further includes a feed cylinder connected to the grinding box, wherein a crushing roller driven by a motor is provided inside the feed cylinder, and a second inclined side is also provided inside the feed cylinder to cooperate with the crushing roller.

[0015] Optionally, a collection bucket is provided at the outlet of the air box, which is used to receive the ground polyanionic cellulose.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention includes a bellows with a material collection mechanism after the grinding box for the grinding process. This allows the ground polyanionic cellulose to be collected by the material collection mechanism inside the bellows. By changing the material collection mechanism of different specifications, polyanionic cellulose of different particle sizes can be collected, thereby meeting different production needs.

[0018] This invention enables the grinding part to rotate during the grinding process by meshing with the toothed ring on the grinding disc, thereby accelerating the grinding process and improving grinding efficiency.

[0019] This invention, by setting up a stirring part and a gear fixed to the stirring part, enables the grinding part to drive the gear to rotate during the grinding process, thereby driving the stirring part to rotate. This allows the polyanionic cellulose material that falls from the grinding disc after grinding to be stirred, thus preventing the material from piling up and sticking together, thereby ensuring the quality of the material.

[0020] This utility model also includes a material collection mechanism consisting of a wind duct and a material collection filter bag. By replacing the material collection filter bag with different specifications, materials of different particle sizes can be collected. After collection, by conveying blowing air into the wind duct, the polyanionic cellulose material collected on the material collection filter bag can be blown down and thus collected. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a grinding device for producing polyanionic cellulose according to the present invention.

[0023] Figure 2 This is a three-dimensional sectional view of the grinding box of a grinding device for producing polyanionic cellulose according to this utility model.

[0024] Figure 3 This utility model relates to a grinding device for the production of polyanionic cellulose. Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 This is a schematic diagram of the structure of the grinding device air duct and the material collection filter bag for the production of polyanionic cellulose according to this utility model.

[0026] Figure 5 This is a three-dimensional sectional view of the bellows of a grinding device for producing polyanionic cellulose according to this utility model.

[0027] Figure 6 This utility model relates to a grinding device for the production of polyanionic cellulose. Figure 2 Enlarged view of point B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Grinding box; 2. Grinding disc; 3. Grinding section; 4. Air box; 5. Air duct; 6. Gear ring; 7. Gear meshing section; 8. Crank connecting rod; 9. Motor; 10. Gear; 11. Mixing section; 12. Bevel one; 13. Air duct; 14. Collection filter bag; 15. Box cover; 16. Fan two; 17. Fan one; 18. Base plate; 19. Supporting component; 20. Feed cylinder; 21. Crushing roller; 22. Bevel two; 23. Collection bucket. Detailed Implementation

[0030] 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.

[0031] As mentioned above, after grinding with existing technology, the polyanionic cellulose particles of varying sizes become mixed together and cannot be separated. This causes inconvenience for subsequent production needs. To address this, this invention provides a grinding device that improves grinding efficiency and separates the ground polyanionic cellulose particles of varying sizes, thereby meeting different production requirements. This invention solves the problem in the following way.

[0032] Example 1:

[0033] like Figures 1 to 3 As shown, this utility model discloses a grinding device for producing polyanionic cellulose. The grinding device includes at least a grinding box 1, a grinding disc 2, a grinding section 3, a bellows 4, a material collection mechanism, and an air duct 5. The grinding disc 2 is disposed inside the grinding box 1, and the grinding section 3 is disposed on the grinding disc 2. The grinding section 3 and the grinding disc 2 are in contact, and the grinding section 3 reciprocates on the grinding disc 2. Through friction of the contact surfaces, the polyanionic cellulose raw material on the grinding disc 2 is ground. The grinding disc 2 has several small holes. Only when the particle size of the raw material is ground to be smaller than or equal to the size of one hole can it pass through the hole and proceed to the next process.

[0034] At least one air box 4 is provided, and the air box 4 is connected to the grinding box 1 via an air duct 5 equipped with a control valve. A blower 17 is installed on the air duct 5 between the grinding box 1 and the air box 4, and the blower 17 is used to transport the material ground in the grinding box 1 into the air box 4. When there are two or more air boxes 4, adjacent air boxes 4 are also connected by air ducts 5, and these air ducts 5 are all equipped with control valves, which can be used to control the entry and exit of materials. The air box 4 is equipped with a collection mechanism, and the collection mechanism in each air box 4 can be changed according to different usage requirements. The polyanionic cellulose material passing through the small holes on the grinding disc 2 enters the air box 4 through the air duct 5, is collected by the collection mechanism, and is finally discharged through the discharge port provided on the air box 4 (the discharge port of the air box 4 is also equipped with a control valve, which can be used to control the discharge). It is collected by the collection bucket 23 located at the discharge port of the air box 4, thus completing the particle size separation of polyanionic cellulose. The grinding apparatus also includes a base plate 18, on which a support member 19 is provided. The support member 19 is used to support the grinding box 1, the blower 17 and the air box 4.

[0035] Example 2:

[0036] Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also provides an embodiment two, such as... Figures 2 to 3 As shown, in this second embodiment, the grinding section 3 is equipped with a crank connecting rod 8, which is driven to rotate by a motor 9, which is fixed to the grinding box 1. The crank connecting rod 8 is positioned such that the axis of the output shaft of the motor 9 is parallel to, but not coincident with, the axis of the center portion of the grinding section 3. Therefore, when the motor 9 is powered on, the end of the crank connecting rod 8 connected to the grinding section 3 performs a reciprocating circular motion on the grinding disc 2, thereby driving the grinding section 3 to perform a reciprocating circular motion, thus achieving the grinding of the polyanionic cellulose material on the grinding disc 2, making it finer.

[0037] The edge of the grinding disc 2 is provided with a toothed ring 6, and the outer periphery of the grinding part 3 is fixed with a toothed part 7 that meshes with the toothed ring 6. Therefore, while the grinding part 3 moves in a circular motion on the grinding disc 2, it also rotates around itself at the point where it connects to the crank connecting rod 8 due to the meshing action. The rotation of the grinding part 3 also accelerates the grinding of the polyanionic cellulose material on the grinding disc 2, further enhancing its grinding efficiency.

[0038] The toothed ring 6 has a beveled edge 12 on the side away from the grinding disc 2, and the beveled edge 12 is fixed to the inner wall of the grinding chamber 1. This provides some protection for the meshing connection between the toothed ring 6 and the meshing part 7. When the polyanionic cellulose material falls onto the beveled edge 12, it will fall into the middle of the grinding disc 2 along the beveled angle of the beveled edge 12, waiting to be ground.

[0039] After grinding, the polyanionic cellulose material falls from the small hole of the grinding disc 2 and accumulates at the discharge port of the grinding chamber 1 (when the control valve is closed). At this time, due to electrostatic adsorption and molecular chain entanglement between the powdered polyanionic cellulose materials, the material will pile up or stick together. To solve this problem, in this embodiment, the grinding disc 2 is also equipped with a gear 10, which meshes with a gear 7. When the grinding part 3 rotates, the gear 7 also rotates, thereby driving the gear 10 to rotate. The gear 10 is equipped with a stirring part 11, which is rotatably connected to the grinding chamber 1 and located in the part of the grinding disc 2 near the discharge port. When the gear 10 rotates, the stirring part 11 also rotates, thereby breaking up the sticky and piled-up material and avoiding the above-mentioned problem.

[0040] Example 3:

[0041] Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also provides an embodiment three, such as... Figures 4 to 5 As shown, in this embodiment three, the material collection mechanism includes several air ducts 13 suspended inside the air box 4. The air ducts 13 are fitted with material collection filter bags 14. The material collection filter bags 14 have different materials and filter diameters, such as needle-punched felt filter bags and HEPA high-efficiency filter paper, which can be replaced according to actual production needs. When the blower 17 blows the powder that has been ground in the grinding box 1 into the air box 4 through the air duct 5, the powder that meets the filter diameter will be collected by the material collection filter bags 14, and the powder that does not meet the filter diameter will pass through the material collection filter bags 14 to the next place until all the powder is stuck on the material collection filter bags 14. At this time, the material collection process of the material collection mechanism is completed (this process requires the control valve of the outlet of the air box 4 to be closed. If some powder does not stick to the material collection filter bags 14 but falls to the outlet, it needs to be collected separately and then recycled or put back into the process).

[0042] Meanwhile, the air duct 13 has a hollow inner cavity, and several air vents communicating with the hollow inner cavity are opened on the surface of the duct. The air box 4 is equipped with a cover 15, which is hollow inside. One end of the cover 15 communicates with the hollow inner cavity of the air duct 13, and the other end is connected to a second blower 16. When the second blower 16 starts, air is injected into the cover 15. The air passes through the inner cavity of the cover 15, enters the hollow inner cavity of the air duct 13, and finally exits from the air vents on the surface of the duct. Finally, the air is blown onto the collection filter bag 14, thus blowing off the powder adhering to it, which then falls from the outlet of the air box 4 into the collection bucket 23. (During this process, the control valve at the connection point between the air box 4 and the air duct 5 needs to be closed to prevent powder from entering the air duct 5 or other parts of the air box 4 during this process.)

[0043] Example 4:

[0044] Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also provides an embodiment four, such as... Figure 1 , Figure 6 As shown in Embodiment 4, the grinding device further includes a feed cylinder 20 connected to the grinding chamber 1. A crushing roller 21 driven by a motor 9 is installed inside the feed cylinder 20. A second inclined edge 22, used in conjunction with the crushing roller 21, is also installed inside the feed cylinder 20. The side of the second inclined edge 22 facing the feed material is inclined downwards, causing the polyanionic cellulose material falling onto it to fall along the incline and contact the crushing roller 21, where it is crushed. The other side of the second inclined edge 22 is in contact with the crushing roller 21 and has a preset gap between it and the roller. Raw material particles larger than this preset gap will continuously be crushed by the crushing roller 21 and the second inclined edge 22 until their size is smaller than the preset gap, at which point they can pass through the gap and fall into the aforementioned grinding disc 2 for grinding.

[0045] In summary, the grinding apparatus for producing polyanionic cellulose disclosed in this utility model, based on the above embodiments, has at least the following advantages over the prior art, including but not limited to:

[0046] After the grinding box 1 for the grinding process, this utility model also provides a bellows 4 with a material collection mechanism. This allows the ground polyanionic cellulose to be collected by the material collection mechanism inside the bellows 4. By changing the material collection mechanism of different specifications, polyanionic cellulose of different particle sizes can be collected, thereby meeting different production needs.

[0047] This invention enables the grinding part 3 to rotate during the grinding process by meshing the toothed part 7 on the grinding part 3 with the toothed ring 6 on the grinding disk 2, thereby accelerating the grinding process and improving the grinding efficiency.

[0048] This invention, by setting up a stirring part 11 and a gear 10 fixed to the stirring part 11, enables the grinding part 3 to drive the gear 10 to rotate during the grinding process, thereby driving the stirring part 11 to rotate. This allows the polyanionic cellulose material that falls from the grinding disc 2 after grinding to be stirred, thereby avoiding the accumulation and adhesion between materials and ensuring the quality of the material.

[0049] This utility model also includes a material collection mechanism consisting of a wind duct 13 and a material collection filter bag 14. By replacing the material collection filter bag 14 with different specifications, materials of different particle sizes can be collected. After collection, by conveying blowing air into the wind duct 13, the polyanionic cellulose material collected on the material collection filter bag 14 can be blown down and collected.

[0050] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A grinding device for producing polyanionic cellulose, characterized by comprising: include: Grinding box (1) and grinding disc (2) provided in grinding box (1), grinding disc (2) is provided with grinding part (3), grinding part (3) is used to grind the material on grinding disc (2); A bellows (4) is provided with a material collection mechanism inside the bellows (4) for collecting materials inside the bellows (4); A duct (5) with a control valve is provided for connecting the grinding box (1) and the air box (4). Two adjacent air boxes (4) are also connected by the duct (5).

2. The grinding device for producing polyanionic cellulose according to claim 1, characterized by The edge of the grinding disc (2) is provided with a toothed ring (6), and the outer periphery of the grinding part (3) is fixed with a toothed part (7) that meshes with the toothed ring (6). The grinding part (3) is provided with a crank connecting rod (8), which is driven to rotate by a motor (9).

3. The grinding device for producing polyanionic cellulose according to claim 2, characterized in that, The grinding disc (2) is also provided with a gear (10), which meshes with the gear (7). The gear (10) is provided with a stirring part (11), which is rotatably connected to the grinding box (1).

4. The grinding device for producing polyanionic cellulose according to claim 2, wherein The toothed ring (6) has a beveled edge (12) on the side away from the grinding disc (2), and the beveled edge (12) is fixed to the inner wall of the grinding box (1).

5. A grinding apparatus for producing polyanionic cellulose according to claim 1, characterized in that, The material collection mechanism includes several air ducts (13) suspended in the air box (4). The air duct (13) has a hollow inner cavity inside, and several air ports communicating with the hollow inner cavity are opened on the surface of the duct. The air duct (13) is surrounded by a material collection filter bag (14).

6. The grinding device for producing polyanionic cellulose according to claim 5, wherein The air box (4) is provided with a cover (15). The cover (15) is hollow inside. One end of the cover (15) is connected to the hollow cavity of the air duct (13), and the other end is connected to a second fan (16).

7. The grinding device for producing polyanionic cellulose according to claim 1, characterized in that, A blower (17) is installed on the air duct (5) between the grinding box (1) and the air box (4). The blower (17) is used to transport the material ground by the grinding box (1) to the air box (4).

8. The grinding device for producing polyanionic cellulose according to claim 7, wherein The grinding device also includes a base plate (18), on which a support member (19) is provided. The support member (19) is used to support the grinding box (1), the blower (17) and the air box (4).

9. The grinding device for producing polyanionic cellulose according to claim 1, characterized by The grinding device also includes a feed cylinder (20) connected to the grinding box (1). The feed cylinder (20) is equipped with a crushing roller (21) driven by a motor (9). The feed cylinder (20) is also equipped with a second inclined side (22) used in conjunction with the crushing roller (21).

10. The grinding device for producing polyanionic cellulose according to claim 1, characterized in that, A collection bucket (23) is provided at the outlet of the blower (4), and the collection bucket (23) is used to receive the ground polyanionic cellulose.

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