Impurity separation device for sodium carboxymethyl cellulose production

Abstract

The utility model discloses an impurity separation device for sodium carboxymethyl cellulose production, which comprises a main body, a primary filtering mechanism, a dismounting mechanism and an auxiliary mechanism, the primary filtering mechanism comprises a feeding box and a primary filtering piece, the dismounting mechanism comprises a fine filtering piece and a fixing piece, and the auxiliary mechanism comprises a water pump and a heating box. Under the mutual matching action of the mechanisms, the device can reduce membrane pollution and blockage risks and improve the operation stability of an ultrafiltration system through multi-stage filtration treatment, the treatment capacity of the system is improved through stage treatment, and the flow speed of a solution is more stable; the device is suitable for high-frequency operation or replacement of different batches of raw materials, and production line stagnation in the cleaning period is reduced through quick disassembly and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, specifically to an impurity separation device for the production of sodium carboxymethyl cellulose. Background Technology

[0002] In the production of sodium carboxymethyl cellulose, common impurities include unreacted cellulose, excess sodium monochloroacetate, salt, unreacted alkali (NaOH), by-product alcohols, and other organic matter. These impurities can seriously affect the purity, viscosity, and quality of the product.

[0003] First, without multi-stage filtration, impurities directly enter the ultrafiltration membrane, easily causing membrane fouling, clogging, or even rupture, thus requiring frequent cleaning / replacement of the membrane module, significantly increasing maintenance costs.

[0004] Secondly, if the primary filter has a complex structure and is not disassembled, cleaning will take a long time and may cause residual cross-contamination, affecting product purity.

[0005] Finally, without heating and stirring functions, the solution is prone to sedimentation, gelling, and pipe blockage during filtration or transportation. Stagnant areas will create dead material zones, leading to quality fluctuations. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an impurity separation device for the production of sodium carboxymethyl cellulose, thereby solving the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an impurity separation device for sodium carboxymethyl cellulose production, comprising a main body, a primary filtration mechanism, a disassembly mechanism, and an auxiliary mechanism. The primary filtration mechanism includes a feed box and a primary filter element. The feed box is fixedly installed inside the main body, and the primary filter element is installed on the main body and connected to the feed box. A locking block and a first spring are installed on the main body. The locking block is slidably connected to the main body, and the other end of the first spring is fixedly connected to the main body. The disassembly mechanism includes a fine filter element and a fixing element. The fine filter element is installed at the bottom of the feed box, and the fixing element is installed on the fine filter element and connected to the feed box. A positioning frame is installed on the fixing element, and a second spring is provided on the positioning frame. The positioning frame slides on the fixing element, and the second spring is fixedly connected to the fixing element.

[0010] Preferably, the auxiliary mechanism includes a water pump and a heating box. One end of the water pump is connected to the fine filter element and the other end is fixedly connected to the heating box. A motor is fixedly installed on the heating box, and a stirring shaft is fixedly installed on the motor. A heating plate is installed at the bottom of the heating box, and an ultrafilter is fixedly installed inside the main body.

[0011] In a further preferred embodiment, the main body is provided with a reset plate, the reset plate is provided with a third spring, the reset plate is slidably connected to the main body, and one end of the third spring is fixedly connected to the main body, which facilitates the removal of the primary filter element.

[0012] In a further preferred embodiment, the primary filter element is provided with a sealing gasket and a primary filter screen, and the sealing gasket is connected in conjunction with the feed box to facilitate sealing of the feed box.

[0013] In a further preferred embodiment, the bottom of the feed box is provided with a positioning hole, the positioning frame is connected to the positioning hole, and the fixing member is provided with a threaded hole to facilitate the locking of the fixing member's position.

[0014] In a further preferred embodiment, the primary filter element is provided with a connecting pipe, the connecting pipe is provided with an external thread, and the threaded hole is connected to the external thread to facilitate the fixing of the primary filter element in position by the fixing component.

[0015] In a further preferred embodiment, one end of the water pump is provided with a flexible hose and a first transmission pipe. The flexible hose is connected to the primary filter element, and the first transmission pipe is fixedly connected to the heating box, which facilitates the operation of the device.

[0016] In a further preferred embodiment, the ultrafilter is provided with a second transmission pipe, and the second transmission pipe is provided with a control valve to facilitate the transmission of the heated material.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an impurity separation device for the production of sodium carboxymethyl cellulose, which has the following beneficial effects:

[0019] By setting up a primary filtration mechanism, this invention enables multi-stage filtration through the coordinated action of components such as the feed box and the primary filter element. This reduces membrane fouling and clogging risks, improves the operational stability of the ultrafiltration system, and the staged treatment enhances the system's processing capacity and makes the solution flow rate more stable.

[0020] By setting up a disassembly mechanism, the filter screen and fine filter element of this device can be easily disassembled and assembled under the cooperation of components such as fine filter element and fixing element. It is suitable for high-frequency operation or replacement of different batches of raw materials, and the quick disassembly and cleaning reduces production line downtime during the cleaning cycle.

[0021] In this invention, by setting up an auxiliary mechanism, under the combined action of components such as the water pump and the heating box, the CMC solution in this device is viscous and easily precipitates when cooled. Heating and stirring can maintain a uniform state, and the temperature increase reduces the viscosity of the solution, making filtration smoother. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an impurity separation device for the production of sodium carboxymethyl cellulose according to this utility model;

[0023] Figure 2 This is an exploded view of the primary filter mechanism in this utility model;

[0024] Figure 3 This is a cross-sectional view of the internal structure of the main body in this utility model;

[0025] Figure 4 This is an exploded view of the disassembly mechanism in this utility model;

[0026] Figure 5 This is a schematic diagram of the auxiliary mechanism in this utility model.

[0027] In the diagram: 1. Main body; 2. Feed box; 3. Primary filter element; 4. Clamping block; 5. First spring; 6. Fine filter element; 7. Fixing element; 8. Positioning frame; 9. Second spring; 10. Water pump; 11. Heating box; 12. Motor; 13. Stirring shaft; 14. Heating plate; 15. Ultrafilter; 16. Reset plate; 17. Third spring; 18. Sealing gasket; 19. Primary filter screen; 20. Positioning hole; 21. Threaded hole; 22. Connecting pipe; 23. External thread; 24. Flexible hose; 25. First transmission pipe; 26. Second transmission pipe; 27. Control valve. Detailed Implementation

[0028] 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.

[0029] Example 1:

[0030] Please see Figures 1-5An impurity separation device for the production of sodium carboxymethyl cellulose includes a main body 1, a primary filtration mechanism, a disassembly mechanism, and an auxiliary mechanism. The primary filtration mechanism includes a feed box 2 and a primary filter element 3. The feed box 2 is fixedly installed inside the main body 1. The primary filter element 3 is installed on the main body 1 and is connected to the feed box 2. A locking block 4 and a first spring 5 are installed on the main body 1. The locking block 4 is slidably connected to the main body 1. The other end of the first spring 5 is fixedly connected to the main body 1. The disassembly mechanism includes a fine filter element 6 and a fixing element 7. The fine filter element 6 is installed at the bottom of the feed box 2. The fixing element 7 is installed on the fine filter element 6 and is connected to the feed box 2. A positioning frame 8 is installed on the fixing element 7. A second spring 9 is provided on the positioning frame 8. The positioning frame 8 slides on the fixing element 7. The second spring 9 is fixedly connected to the fixing element 7.

[0031] In this embodiment, the primary filtration mechanism includes a feed box 2 and a primary filter element 3. When the primary filter element 3 needs to be cleaned during use, the locking block 4 is pulled directly, allowing the locking block 4 to slide on the main body 1 and compress the first spring 5. Subsequently, the primary filter element 3 is no longer restrained, and the compressed third spring 17 directly pushes the reset plate 16 to apply power to the primary filter element 3, allowing the primary filter element 3 to detach from the feed box 2. When the primary filter element 3 detaches from the feed box 2, the sealing gasket 18 is disconnected from the feed box 2, and the primary filter screen 19 is removed, then cleaned, and reinstalled on the feed box 2 in reverse order according to the above operation.

[0032] In this embodiment, the disassembly mechanism includes a fine filter element 6 and a fixing element 7. During use, the fine filter element 6 does not need to be cleaned as frequently as the primary filter element 3. However, when cleaning is required, the hose 24 on the water pump 10 can be disconnected from the connecting pipe 22 first. Then, the positioning element on the fixing element 7 can be pulled so that the positioning element can stretch the second spring 9 and disengage from the positioning hole 20 at the bottom of the feed box 2. At this time, the fixing element 7 can be rotated so that the threaded hole 21 on the fixing element 7 can be engaged with the external thread 23 on the connecting pipe 22, thereby removing the fixing element 7 from the connecting pipe 22. Then, the fine filter element 6 can be taken out of the feed box 2.

[0033] In this embodiment, the auxiliary mechanism includes a water pump 10 and a heating tank 11. After the initial filter element 3 and the fine filter element 6 are cleaned and installed, the water pump 10 starts and directly transfers the solution in the feed tank 2 to the heating tank 11 through the first transmission pipe 25. Then, the heating plate 14 at the bottom of the heating tank 11 drives the solution inside the heating tank 11 to heat it directly. At the same time, the motor 12 drives the stirring shaft 13 to start rotating, stirring and disturbing the solution in the heating tank 11 to prevent caking. When the solution inside the heating tank 11 reaches the required temperature, the control valve 27 installed on the second transmission pipe 26 at the bottom of the heating tank 11 opens, allowing the solution to be transferred through the second transmission pipe 26 to the ultrafilter 15 with a filter pump for filtration.

[0034] Example 2:

[0035] In summary, when cleaning the primary filter element 3 during use, simply pull the locking block 4, allowing it to slide on the main body 1 and compress the first spring 5. The primary filter element 3 will then be freed from restraint, and the compressed third spring 17 will directly push the reset plate 16 to apply force to the primary filter element 3, allowing it to detach from the feed box 2. When the primary filter element 3 detaches from the feed box 2, the sealing gasket 18 disconnects from the feed box 2, and the primary filter screen 19 is removed. After cleaning, it is reinstalled onto the feed box 2 in reverse order. Although the fine filter element 6 requires less frequent cleaning than the primary filter element 3, when cleaning is needed, the hose 24 on the water pump 10 can be disconnected from the connecting pipe 22. Then, the positioning piece on the fixing piece 7 can be pulled, causing the positioning piece to stretch the second spring 9 and disengage from the positioning hole 20 at the bottom of the feed box 2. At this point, the fixing piece 7 can be rotated... Fixing part 7 is installed so that the threaded hole 21 on fixing part 7 is engaged with the external thread 23 on connecting pipe 22, thereby removing fixing part 7 from connecting pipe 22. Then, fine filter element 6 is taken out of feed box 2 for cleaning. After the initial filter element 3 and fine filter element 6 are cleaned and installed, water pump 10 starts and directly transfers the solution in feed box 2 to heating box 11 through first transmission pipe 25. Then, heating plate 14 at the bottom of heating box 11 is driven to directly heat the solution inside heating box 11. At the same time, motor 12 drives stirring shaft 13 to start rotating, stirring and agitating the solution in heating box 11 to prevent caking. When the solution inside heating box 11 reaches the temperature, control valve 27 installed on second transmission pipe 26 at the bottom of heating box 11 is opened, so that the solution can be transferred in second transmission pipe 26 to ultrafilter 15 with filter pump for filtration.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An impurity separation device for the production of sodium carboxymethyl cellulose, comprising a main body (1), a primary filtration mechanism, a disassembly mechanism, and an auxiliary mechanism, characterized in that, The primary filtration mechanism includes a feed box (2) and a primary filter element (3). The feed box (2) is fixedly installed inside the main body (1). The primary filter element (3) is installed on the main body (1) and is connected to the feed box (2). A locking block (4) and a first spring (5) are installed on the main body (1). The locking block (4) is slidably connected to the main body (1). The other end of the first spring (5) is fixedly connected to the main body (1). The disassembly mechanism includes a fine filter element (6) and a fixing element (7). The fine filter element (6) is installed at the bottom of the feed box (2). The fixing element (7) is installed on the fine filter element (6) and is connected to the feed box (2). A positioning frame (8) is installed on the fixing element (7). A second spring (9) is provided on the positioning frame (8). The positioning frame (8) slides on the fixing element (7). The second spring (9) is fixedly connected to the fixing element (7).

2. The impurity separation device for sodium carboxymethyl cellulose production according to claim 1, characterized in that: The auxiliary mechanism includes a water pump (10) and a heating box (11). One end of the water pump (10) is connected to the fine filter element (6) and the other end is fixedly connected to the heating box (11). A motor (12) is fixedly installed on the heating box (11). A stirring shaft (13) is fixedly installed on the motor (12). A heating plate (14) is installed at the bottom of the heating box (11). An ultrafilter (15) is fixedly installed inside the main body (1).

3. The impurity separation device for sodium carboxymethyl cellulose production according to claim 1, characterized in that: A reset plate (16) is provided on the main body (1), and a third spring (17) is provided on the reset plate (16). The reset plate (16) is slidably connected to the main body (1), and one end of the third spring (17) is fixedly connected to the main body (1).

4. The impurity separation device for sodium carboxymethyl cellulose production according to claim 2, characterized in that: The primary filter element (3) is provided with a sealing gasket (18) and a primary filter screen (19), and the sealing gasket (18) is connected to the feed box (2).

5. The impurity separation device for sodium carboxymethyl cellulose production according to claim 1, characterized in that: The bottom of the feed box (2) is provided with a positioning hole (20), the positioning frame (8) is connected to the positioning hole (20), and the fixing part (7) is provided with a threaded hole (21).

6. The impurity separation device for sodium carboxymethyl cellulose production according to claim 5, characterized in that: The primary filter element (3) is provided with a connecting pipe (22), and the connecting pipe (22) is provided with an external thread (23). The threaded hole (21) is connected to the external thread (23).

7. The impurity separation device for sodium carboxymethyl cellulose production according to claim 2, characterized in that: The water pump (10) is provided with a hose (24) and a first transmission pipe (25) at one end. The hose (24) is connected to the primary filter (3), and the first transmission pipe (25) is fixedly connected to the heating box (11).

8. The impurity separation device for sodium carboxymethyl cellulose production according to claim 7, characterized in that: The ultrafilter (15) is provided with a second transmission pipe (26), and the second transmission pipe (26) is provided with a control valve (27).

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