A sodium carboxymethyl cellulose breaking device
By designing a crushing cylinder and crushing mechanism, the problem of sodium carboxymethyl cellulose clumping and clogging the pipeline was solved, enabling smooth material transport and efficient production.
Patent Information
- Application Number
- CN202522060822.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
Sodium carboxymethyl cellulose tends to clump after vacuum centrifugation, causing material to clog pipelines and reduce production efficiency.
A device including a crushing cylinder, a crushing mechanism, a discharge pipe, and a breather valve was designed. The material is initially dispersed by centrifugal force, and the agglomerates are crushed into fine particles by multi-stage linkage of the crushing roller and crushing cutter head. Combined with the design of the limit frame and filter holes, the material is ensured to be discharged smoothly.
It effectively prevents material from caking and clogging pipes, improves production efficiency, saves space, and is easy to maintain.
Smart Images
Figure CN224672806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sodium carboxymethyl cellulose production technology, specifically to a sodium carboxymethyl cellulose crushing device. Background Technology
[0002] Sodium carboxymethyl cellulose (CMC-Na) is a water-soluble anionic polymer obtained through chemical modification of natural cellulose. It has thickening, film-forming, water-retaining, and colloidal stabilizing properties and is widely used in the pharmaceutical, food, and chemical industries. Its powder is hygroscopic, and when it comes into direct contact with water, the outer layer quickly absorbs water to form a gel barrier. The internal particles cannot be fully wetted and therefore agglomerate. Especially when there is insufficient stirring or the concentration is too high, it will form transparent lumps that are difficult to dissolve. In addition, temperature fluctuations and pH changes may exacerbate the crystallization tendency of its molecular chains, further promoting agglomeration.
[0003] Currently, in the vacuum centrifugation process of sodium carboxymethyl cellulose, after dehydration, the residual moisture and the adsorption force between particles are enhanced, leading to frequent agglomeration. Existing equipment usually transports the centrifuged material to the next process through pipelines, but the agglomerated material is prone to clogging the pipelines, requiring frequent shutdowns for cleaning, thereby reducing production efficiency.
[0004] Therefore, it is of great importance to design a sodium carboxymethyl cellulose crushing device to solve the above-mentioned defects. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention designs a sodium carboxymethyl cellulose crushing device. This device aims to solve the technical problem that, under existing technologies, sodium carboxymethyl cellulose easily clogs pipes after vacuum centrifugation, requiring frequent shutdowns for cleaning, thus reducing production efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A sodium carboxymethyl cellulose crushing device includes a crushing cylinder fixedly installed at the bottom of a centrifuge. A support frame is fixedly connected to the bottom of the crushing cylinder. A crushing mechanism is installed inside the crushing cylinder. A discharge pipe is fixedly connected to the outside of the crushing cylinder. A breather valve is fixedly installed on the outside of the discharge pipe. A guide pipe is fixedly installed at the front end of the discharge pipe. A discharge valve is fixedly installed at the top end of the guide pipe.
[0008] The crushing mechanism includes a material collection hood fixedly connected to the bottom of the crushing cylinder, a guide hood fixedly connected to the top of the material collection hood, a drive shaft rotatably connected to the top of the support frame and inside the material collection hood, a mounting frame fixedly installed on the outside of the drive shaft, multiple sets of crushing rollers rotatably connected to the inside of the mounting frame, and a crushing cutter head fixedly installed at the top of the drive shaft.
[0009] As a preferred embodiment of this utility model, the material collection hood has multiple sets of filter holes on the side near the discharge pipe, and a limit frame is fixedly installed inside the crushing cylinder and on the outside of the material collection hood.
[0010] As a preferred embodiment of this utility model, a geared motor is fixedly installed at the bottom of the support frame, and the driving end of the geared motor is fixedly connected to the bottom end of the drive shaft.
[0011] As a preferred embodiment of this utility model, the outer sides of the multiple sets of crushing rollers are all in contact with the inner sidewall of the collecting hood, and multiple sets of toothed grooves are opened on the outer sides of the multiple sets of crushing rollers. A conical protective cover is fixedly connected to the top of the mounting frame and located outside the drive shaft.
[0012] As a preferred embodiment of this utility model, the crushing cylinder and the centrifuge are fixedly connected by a flange, and multiple sets of self-locking casters are installed at the bottom of the support frame.
[0013] As a preferred embodiment of this utility model, a corrugated hose is installed between the discharge pipe and the guide pipe. Both ends of the corrugated hose are fixedly connected to the discharge pipe and the guide pipe respectively through connecting sleeves. A support frame is fixedly connected to the bottom end of the guide pipe.
[0014] As a preferred embodiment of this utility model, the connecting sleeve is composed of two sets of half sleeves, the right ends of the two sets of half sleeves are hinged together, the left end of one set of half sleeves is rotatably connected to a locking stud, and the left end of the other set of half sleeves is provided with a locking groove at a position corresponding to the locking stud. The top end of the locking stud is threadedly connected to a locking sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] In this invention, through the coordinated design of the crushing cylinder, support frame, crushing mechanism, discharge pipe, breather valve, guide pipe, and discharge valve, the material enters the crushing cylinder through the feed valve at the top of the centrifuge. The agglomerated material is initially dispersed under centrifugal force. The crushing mechanism starts simultaneously to crush the agglomerated material into fine particles. The crushing cylinder and its internal crushing mechanism are integrated at the bottom of the centrifuge, saving space and facilitating maintenance. Through the multi-stage linkage design of the crushing blades and crushing rollers, the crushing efficiency of stubborn agglomerated materials is significantly improved. The speed of the geared motor can be controlled to adapt to the needs of materials with different hardness or moisture content, providing high flexibility. The crushed material is discharged through the filter holes on the side of the collection hood. The discharged material is discharged from the discharge pipe under the restriction and guidance of the limit frame. The discharge valve is opened, and the breather valve automatically adjusts its opening according to the negative pressure to balance the air pressure inside and outside the cylinder, ensuring smooth material discharge. The crushed material enters the guide pipe through the discharge pipe and is finally transported to the next process, thereby avoiding material agglomeration and clogging of the pipe and improving production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the crushing cylinder of this utility model;
[0019] Figure 3 This is a schematic diagram of the crushing mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the connecting sleeve structure of this utility model.
[0021] In the diagram: 1. Centrifuge; 2. Crushing cylinder; 201. Flange; 3. Support frame; 301. Self-locking caster wheel; 4. Crushing mechanism; 401. Collection hood; 402. Guide hood; 403. Drive shaft; 404. Mounting frame; 405. Crushing roller; 406. Crushing cutter head; 407. Filter hole; 408. Limiting frame; 409. Gear motor; 410. Toothed groove; 411. Conical protective cover; 5. Discharge pipe; 501. Corrugated hose; 502. Connecting sleeve; 503. Half sleeve; 504. Locking stud; 505. Locking groove; 506. Locking sleeve; 6. Breathing valve; 7. Guide pipe; 701. Support frame; 8. Discharge valve. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example: Please refer to Figures 1-4 This utility model provides a technical solution:
[0024] A sodium carboxymethyl cellulose crushing device includes a crushing cylinder 2 fixedly installed at the bottom of a centrifuge 1. A support frame 3 is fixedly connected to the bottom of the crushing cylinder 2. A crushing mechanism 4 is installed inside the crushing cylinder 2. A discharge pipe 5 is fixedly connected to the outside of the crushing cylinder 2. A breather valve 6 is fixedly installed on the outside of the discharge pipe 5. A guide pipe 7 is fixedly installed at the front end of the discharge pipe 5. A discharge valve 8 is fixedly installed at the top end of the guide pipe 7. The material enters the crushing cylinder 2 through the feed valve at the top of the centrifuge 1. The agglomerated material is initially dispersed under the action of centrifugal force. The crushing mechanism 4 is activated simultaneously to crush the agglomerated material into fine particles. The discharge valve 8 is opened. The breather valve 6 automatically adjusts its opening according to the negative pressure to balance the air pressure inside and outside the cylinder and ensure smooth material discharge. The crushed material enters the guide pipe 7 through the discharge pipe 5 and is finally transported to the next process.
[0025] First, in this embodiment, the specific structure of the crushing mechanism 4 is as follows:
[0026] The crushing mechanism 4 includes a collection hood 401 fixedly connected to the bottom of the inside of the crushing cylinder 2. A guide hood 402 is fixedly connected to the top of the collection hood 401. A drive shaft 403 is rotatably connected to the top of the support frame 3 and located inside the collection hood 401. A mounting bracket 404 is fixedly installed on the outside of the drive shaft 403. Multiple sets of crushing rollers 405 are rotatably connected to the inside of the mounting bracket 404. A crushing cutter head 406 is fixedly installed at the top of the drive shaft 403. The bottom of the support frame 3... A geared motor 409 is fixedly installed in the centrifuge 1, and the drive end of the geared motor 409 is fixedly connected to the bottom end of the drive shaft 403. The outer sides of multiple sets of crushing rollers 405 are all in contact with the inner sidewall of the collection hood 401. Multiple sets of toothed grooves 410 are opened on the outer sides of the multiple sets of crushing rollers 405. A conical protective cover 411 is fixedly connected to the top of the mounting frame 404 and located outside the drive shaft 403. The material enters the crushing cylinder 2 through the feed valve at the top of the centrifuge 1 and is discharged into the guide hood 403. Under the action of 02, the material is introduced into the interior of the collection hood 401. The geared motor 409 drives the drive shaft 403 to rotate, which in turn drives the mounting frame 404 and multiple sets of crushing rollers 405 to rotate synchronously. The crushing cutter head 406 at the top of the drive shaft 403 cuts the incoming sodium carboxymethyl cellulose agglomerates at high speed to achieve coarse crushing. The conical protective cover 411 can prevent the accumulation of material on the mounting frame 404 and the formation of sanitary dead corners. The outer tooth groove 410 of the crushing roller 405 fits tightly with the inner wall of the collection hood 401, and further crushes the agglomerates through squeezing and shearing. The crushing cylinder 2 and its internal crushing mechanism 4 are integrated into the bottom of the centrifuge 1, saving space and facilitating maintenance. Through the multi-stage linkage design of the crushing cutter head 406 and the crushing roller 405, the crushing efficiency of stubborn agglomerates is significantly improved. The geared motor 409 can control the speed to adapt to the material requirements of different hardness or moisture content, which is highly flexible and can prevent material agglomeration from clogging the pipes, thereby improving production efficiency.
[0027] Furthermore, the material collection hood 401 has multiple sets of filter holes 407 on the side near the discharge pipe 5. A limit frame 408 is fixedly installed inside the crushing cylinder 2 and on the outside of the material collection hood 401. The crushed material is discharged through the filter holes 407 on the side of the material collection hood 401. The discharged material is discharged from the discharge pipe 5 under the restriction and guidance of the limit frame 408. The inlet of the discharge pipe 5 is at the lowest point of the material collection hood 401, thereby avoiding material accumulation and making the discharge cleaner.
[0028] Then, the crushing cylinder 2 is fixedly connected to the centrifuge 1 via flange 201. Multiple sets of self-locking casters 301 are installed at the bottom of the support frame 3. The flange 201 connection ensures the sealing of the interface between the crushing cylinder 2 and the centrifuge 1, preventing material leakage and enhancing the overall structural stability of the equipment. The standardized design of flange 201 facilitates disassembly, cleaning, or replacement of parts, reducing downtime. Multiple sets of self-locking casters 301 support the entire equipment, making it easy to adjust the position or move the equipment on the production line.
[0029] Secondly, a corrugated hose 501 is installed between the discharge pipe 5 and the guide pipe 7. Both ends of the corrugated hose 501 are fixedly connected to the discharge pipe 5 and the guide pipe 7 respectively through connecting sleeves 502. A support frame 701 is fixedly connected to the bottom end of the guide pipe 7. The corrugated hose 501 adapts to the vibration or displacement during equipment operation, avoiding stress concentration or pipe deformation caused by rigid connection. The support frame 701 fixes the position of the bottom end of the guide pipe 7 to prevent pipe deviation due to material impact or hose deformation, and ensures the stability of the discharge direction.
[0030] Finally, the connecting sleeve 502 consists of two sets of half sleeves 503. The right ends of the two sets of half sleeves 503 are hinged together. The left end of one set of half sleeves 503 is rotatably connected to a locking stud 504. The left end of the other set of half sleeves 503 is provided with a locking groove 505 at the position corresponding to the locking stud 504. The top end of the locking stud 504 is threadedly connected to a locking sleeve 506. The two sets of half sleeves 503 open and close by hinge, and cooperate with the locking stud 504 and the locking groove 505 to achieve quick disassembly and assembly without tools, which is convenient for maintenance or replacement of the corrugated hose 501.
[0031] In this embodiment, the specific implementation scenario is as follows: Material enters the crushing cylinder 2 through the top feed valve of the centrifuge 1. The agglomerated material is initially dispersed under the action of centrifugal force. The crushing mechanism 4 starts synchronously and is guided into the interior of the collection hood 401 under the action of the guide cover 402. The reduction motor 409 drives the drive shaft 403 to rotate, which drives the mounting frame 404 and multiple sets of crushing rollers 405 to rotate synchronously. The crushing cutter head 406 at the top of the drive shaft 403 cuts the incoming sodium carboxymethyl cellulose agglomerates at high speed to achieve coarse crushing. The conical protective cover 411 can prevent the accumulation of material on the mounting frame 404 and the formation of sanitary dead corners. The outer tooth groove 410 of the crushing roller 405 is closely attached to the inner wall of the collection hood 401, and the agglomerates are further crushed through squeezing and shearing. The crushing cylinder 2 and the crushing mechanism 4 inside it are integrated into the bottom of the centrifuge 1, saving space and making it convenient. For maintenance, the multi-stage linkage design of the crushing blade 406 and the crushing roller 405 significantly improves the crushing efficiency of stubborn lumps. The speed of the geared motor 409 can be controlled to adapt to the needs of materials with different hardness or moisture content, which is highly flexible. The crushed material is discharged through the filter hole 407 on the side of the collection hood 401. The discharged material is discharged from the discharge pipe 5 under the restriction and guidance of the limit frame 408. The discharge valve 8 is opened and the breathing valve 6 automatically adjusts the opening according to the negative pressure to balance the air pressure inside and outside the cylinder and ensure smooth discharge of the material. The crushed material enters the guide pipe 7 through the discharge pipe 5 and is finally transported to the next process. The whole operation process is simple and convenient. This utility model integrates the crushing cylinder 2 and its internal crushing mechanism 4 into the bottom of the centrifuge 1, which saves space and facilitates maintenance. At the same time, it can avoid material lumps from clogging the pipe and improve production efficiency.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sodium carboxymethyl cellulose crushing device, comprising a crushing cylinder (2) fixedly installed at the bottom of a centrifuge (1), characterized in that: The bottom of the crushing cylinder (2) is fixedly connected to a support frame (3), the crushing mechanism (4) is installed inside the crushing cylinder (2), the outside of the crushing cylinder (2) is fixedly connected to a discharge pipe (5), a breather valve (6) is fixedly installed on the outside of the discharge pipe (5), a guide pipe (7) is fixedly installed at the front end of the discharge pipe (5), and a discharge valve (8) is fixedly installed at the top end of the guide pipe (7). The crushing mechanism (4) includes a material collection hood (401) fixedly connected to the bottom of the inside of the crushing cylinder (2). A guide hood (402) is fixedly connected to the top of the material collection hood (401). A drive shaft (403) is rotatably connected to the top of the support frame (3) and inside the material collection hood (401). A mounting frame (404) is fixedly installed on the outside of the drive shaft (403). Multiple sets of crushing rollers (405) are rotatably connected to the inside of the mounting frame (404). A crushing cutter head (406) is fixedly installed at the top of the drive shaft (403).
2. The sodium carboxymethyl cellulose crushing equipment according to claim 1, characterized in that: The material collection hood (401) has multiple sets of filter holes (407) on the side near the discharge pipe (5), and a limit frame (408) is fixedly installed inside the crushing cylinder (2) and outside the material collection hood (401).
3. The sodium carboxymethyl cellulose crushing equipment according to claim 1, characterized in that: A geared motor (409) is fixedly installed at the bottom of the support frame (3), and the driving end of the geared motor (409) is fixedly connected to the bottom end of the drive shaft (403).
4. The sodium carboxymethyl cellulose crushing equipment according to claim 1, characterized in that: The outer sides of the multiple sets of crushing rollers (405) are in contact with the inner sidewall of the collecting hood (401), and the outer sides of the multiple sets of crushing rollers (405) are provided with multiple sets of toothed grooves (410). A conical protective cover (411) is fixedly connected to the top of the mounting frame (404) and to the outside of the drive shaft (403).
5. The sodium carboxymethyl cellulose crushing equipment according to claim 1, characterized in that: The crushing cylinder (2) is fixedly connected to the centrifuge (1) via a flange (201), and the bottom of the support frame (3) is equipped with multiple sets of self-locking casters (301).
6. The sodium carboxymethyl cellulose crushing device according to claim 1, characterized in that: A corrugated hose (501) is installed between the discharge pipe (5) and the guide pipe (7). Both ends of the corrugated hose (501) are fixedly connected to the discharge pipe (5) and the guide pipe (7) respectively through connecting sleeves (502). A support frame (701) is fixedly connected to the bottom end of the guide pipe (7).
7. The sodium carboxymethyl cellulose crushing device according to claim 6, characterized in that: The connecting sleeve (502) consists of two sets of half sleeves (503), with the right ends of the two sets of half sleeves (503) hinged together. The left end of one set of half sleeves (503) is rotatably connected to a locking stud (504), and a locking groove (505) is provided at the position corresponding to the locking stud (504) on the left end of the other set of half sleeves (503). The top end of the locking stud (504) is threadedly connected to a locking sleeve (506).