A sodium carboxymethyl cellulose liquid alkali recycling device

Abstract

The utility model discloses a kind of sodium carboxymethyl cellulose liquid alkali cyclic recycling devices, it is related to liquid alkali cyclic recycling technical field, specifically a kind of sodium carboxymethyl cellulose liquid alkali cyclic recycling device, including recycling box, the left side of recycling box is provided with controller, the inside wall of recycling box is provided with support plate, the top of support plate is provided with first protective box, the inner bottom wall of first protective box is provided with first motor, the output of first motor is provided with carousel. The sodium carboxymethyl cellulose liquid alkali cyclic recycling device, by recycling box, controller, first protective box, first motor, carousel, connecting rod, slider, L-shaped plate, screen frame, second protective box, second motor, lead screw and the setting of first cleaning brush, make the sodium carboxymethyl cellulose liquid alkali cyclic recycling device have the effect of improving the filtering efficiency of liquid alkali, while conveniently and timely cleaning the impurities on the surface of filter screen.

Description

Technical Field

[0001] This utility model relates to the field of liquid alkali recycling technology, specifically a device for recycling and utilizing sodium carboxymethyl cellulose liquid alkali. Background Technology

[0002] Sodium carboxymethyl cellulose is an important water-soluble polymer compound widely used in the food, pharmaceutical, petroleum, and textile industries. Its production process typically involves an alkalization-etherification reaction. Specifically, cellulose (such as cotton pulp or wood pulp) is mixed with liquid alkali (sodium hydroxide solution) to undergo an alkalization reaction, producing alkali cellulose. Chloroacetic acid is then added for etherification. Finally, the product is obtained through neutralization, washing, and drying. During the alkalization process, the liquid alkali acts as both a reactant and a swelling agent; its concentration and dosage are crucial to reaction efficiency and product quality (such as degree of substitution and purity). However, in traditional production processes, the remaining liquid alkali after the reaction (containing small amounts of cellulose debris, byproducts, and impurities) is usually either directly discharged or simply treated and reused.

[0003] An existing sodium carboxymethyl cellulose liquid alkali recycling device uses a single filtration device, which has poor separation effect on large particulate impurities and sticky cellulose, is prone to clogging, and requires frequent replacement of filter cloth or filter bag, resulting in high maintenance costs. Moreover, replacing the filter screen is cumbersome and time-consuming. This paper proposes a sodium carboxymethyl cellulose liquid alkali recycling device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a sodium carboxymethyl cellulose liquid alkali recycling device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a sodium carboxymethyl cellulose liquid alkali recycling device, comprising a recycling box, a controller provided on the left side of the recycling box, a support plate provided on the inner side wall of the recycling box, a first protective box provided on the top of the support plate, a first motor provided on the inner bottom wall of the first protective box, a turntable provided at the output end of the first motor, a connecting rod rotatably connected to one side of the turntable via a pin, a slot provided inside the first protective box, a slider engaged inside the slot, an L-shaped plate welded to the top of the slider, a screen frame welded to the other end of the L-shaped plate, a second protective box provided on the rear inner side wall of the recycling box, a second motor provided on the inner bottom wall of the second protective box, a lead screw provided at the output end of the second motor, a first cleaning brush connected to the outer surface of the lead screw, a sliding groove provided inside the front wall of the recycling box, a filter plate engaged in the sliding groove, and card boxes provided on both the left and right sides of the recycling box.

[0008] Optionally, the top of the recycling bin is provided with a feed pipe, and the bottom of the recycling bin is provided with a discharge pipe.

[0009] Optionally, a first filter screen is provided inside the sieve frame, the other end of the connecting rod is rotatably connected to one side of the slider by a pin, a guide rod is provided on the inner side wall of the recycling box, and the other end of the first cleaning brush is sleeved on the outer surface of the guide rod.

[0010] Optionally, there are two filter plates, with a second filter screen inside each filter plate. The inner wall of the recycling bin is provided with a first funnel, a second funnel, and a storage bin. The first funnel is located above the first filter screen, and the storage bin is located above the first filter plate. A control valve is provided inside the outlet of the storage bin. The second funnel is located above the second filter plate, and the first filter plate is located above the second filter plate.

[0011] Optionally, a first through hole is provided inside the left wall of the recycling bin, and a cleaning rod adapted to the inner diameter of the first through hole is provided in the first through hole. The other end of the cleaning rod is threadedly connected to a second cleaning brush.

[0012] Optionally, the inner wall of the card box is provided with a second through hole, and a U-shaped pull rod adapted to the inner diameter of the second through hole is provided in the second through hole. A spring is sleeved on the outer surface of the U-shaped pull rod, and a baffle is welded to the outer surface of the U-shaped pull rod. A third through hole is provided inside the left and right walls of the filter plate.

[0013] Optionally, the recycling bin is provided with a sliding plate on the right side, and the number of sliding plates is three.

[0014] This invention provides a device for recycling and reusing sodium carboxymethyl cellulose solution, which has the following advantages:

[0015] 1. The sodium carboxymethyl cellulose liquid alkali recycling device, through the arrangement of a recycling box, controller, first protective box, first motor, turntable, connecting rod, slider, L-shaped plate, screen frame, second protective box, second motor, lead screw and first cleaning brush, enables the sodium carboxymethyl cellulose liquid alkali recycling device to improve the filtration efficiency of liquid alkali, and at the same time facilitate the timely cleaning of impurities on the filter screen surface.

[0016] 2. The sodium carboxymethyl cellulose liquid alkali recycling device, through the setting of a card box, U-shaped pull rod, spring, baffle, filter plate and second filter screen, makes it easy to replace the filter screen. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;

[0019] Figure 3 This is a side view sectional diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the present invention from a top cross-section.

[0021] Figure 5 This is a schematic diagram of the top cross-section of this utility model.

[0022] In the diagram: 1. Recycling bin; 2. Controller; 3. First protective box; 4. First motor; 5. Turntable; 6. Connecting rod; 7. Slider; 8. L-shaped plate; 9. Screen frame; 10. Second protective box; 11. Second motor; 12. Lead screw; 13. First cleaning brush; 14. Filter plate; 15. Card box; 16. Feed pipe; 17. Discharge pipe; 18. First filter screen; 19. Guide rod; 20. Second filter screen; 21. Storage bin; 22. Control valve; 23. Cleaning rod; 24. Second cleaning brush; 25. U-shaped pull rod; 26. Spring; 27. Baffle; 28. Slide plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example

[0025] Please see Figures 1 to 5This utility model provides a technical solution for a sodium carboxymethyl cellulose liquid alkali recycling device, including a recycling box 1, a controller 2 on the left side of the recycling box 1, a support plate on the inner side wall of the recycling box 1, a first protective box 3 on the top of the support plate, a first motor 4 on the inner bottom wall of the first protective box 3, a turntable 5 at the output end of the first motor 4, a connecting rod 6 rotatably connected to one side of the turntable 5 via a pin, a slot is provided inside the first protective box 3, a slider 7 is engaged inside the slot, an L-shaped plate 8 is welded to the top of the slider 7, a screen frame 9 is welded to the other end of the L-shaped plate 8, a second protective box 10 is provided on the rear inner side wall of the recycling box 1, a second motor 11 is provided on the inner bottom wall of the second protective box 10, a lead screw 12 is provided at the output end of the second motor 11, a first cleaning brush 13 is connected to the outer surface of the lead screw 12, a sliding groove is provided inside the front wall of the recycling box 1, a filter plate 14 is engaged in the sliding groove, and card boxes 15 are provided on both the left and right sides of the recycling box 1.

[0026] Specifically, controller 2 can be an existing controller on the market, such as a Siemens S7-300 PLC controller or a programmable single-chip microcomputer controller. According to the original intention and purpose of the implementation of the device, controller 2 is programmed so that controller 2 can control the working status of the first motor 4, the second motor 11 and the control valve 22, so as to cooperate with each other to complete the corresponding control and operation in accordance with the spirit of the implementation plan.

[0027] Please see Figures 1 to 2 The top of the recycling bin 1 is equipped with a feed pipe 16, and the bottom of the recycling bin 1 is equipped with a discharge pipe 17.

[0028] Specifically, the liquid alkali to be recycled enters the recycling tank 1 through the feed pipe 16 for filtration, and the filtered liquid alkali is discharged through the discharge pipe 17.

[0029] Please see Figures 1 to 4 The screen frame 9 is equipped with a first filter screen 18. The other end of the connecting rod 6 is rotatably connected to one side of the slider 7 via a pin. The inner wall of the recycling box 1 is equipped with a guide rod 19. The other end of the first cleaning brush 13 is sleeved on the outer surface of the guide rod 19.

[0030] Specifically, the guide rod 19 limits the first cleaning brush 13, allowing the first cleaning brush 13 to move left or right along the guide rod 19.

[0031] Please see Figures 2 to 5There are two filter plates 14. A second filter screen 20 is installed inside the filter plate 14. A first funnel, a second funnel and a storage box 21 are installed on the inner side wall of the recycling box 1. The first funnel is located above the first filter screen 18. The storage box 21 is located above the first filter plate 14. A control valve 22 is installed inside the outlet of the storage box 21. The second funnel is located above the second filter plate 14. The first filter plate 14 is located above the second filter plate 14.

[0032] Specifically, the first and second funnels guide the liquid alkali to ensure that the liquid alkali can fall stably onto the filter screen. The mesh size of the second filter screen 20 is smaller than that of the first filter screen 18. The flow rate of the liquid alkali through the second filter screen 20 is less than that through the first filter screen 18. To ensure that the liquid alkali can pass smoothly through the second filter screen 20, the liquid alkali filtered by the first filter screen 18 needs to be temporarily stored.

[0033] Please see Figures 2 to 5 The left wall of the recycling bin 1 has a first through hole, and a cleaning rod 23 adapted to the inner diameter of the first through hole is installed in the first through hole. The other end of the cleaning rod 23 is threadedly connected to a second cleaning brush 24.

[0034] Specifically, the second cleaning brush 24 is located on the right side of the second filter plate 14, which can prevent liquid alkali from flowing out from the right side of the filter plate 14 to a certain extent. At the same time, the second filter screen 20 is at a certain angle to the horizontal plane.

[0035] Please see Figures 4 to 5 The inner wall of the card box 15 has a second through hole, and a U-shaped pull rod 25 adapted to the inner diameter of the second through hole is provided in the second through hole. A spring 26 is sleeved on the outer surface of the U-shaped pull rod 25, and a baffle 27 is welded on the outer surface of the U-shaped pull rod 25. The interior of the left and right walls of the filter plate 14 has a third through hole.

[0036] Specifically, the U-shaped pull rod 25 limits the filter plate 14 to prevent it from sliding and affecting the filtration effect, and also facilitates the subsequent cleaning and replacement of the second filter screen 20.

[0037] Please see Figures 1 to 5 There are three sliding plates 28 on the right side of the recycling bin 1.

[0038] Specifically, the slide plate 28 is located below the screen frame 9 and the filter plate 14, respectively, and the slide plate 28 is inclined at a certain angle to the horizontal plane.

[0039] In use, liquid alkali is fed into the recycling bin 1 through the feed pipe 16. At the same time, the controller 2 starts the first motor 4. The output of the first motor 4 drives the turntable 5 to rotate, and the turntable 5 drives the connecting rod 6. The connecting rod 6 drives the slider 7, L-shaped plate 8, sieve frame 9 and first filter screen 18 to move back and forth in a linear motion, improving the filtration efficiency and screening the liquid alkali. The liquid alkali that has passed the initial filtration falls into the storage bin 21. The controller 2 adjusts the flow rate of the control valve 22 so that the liquid alkali falls at a stable flow rate to the second filter screen 20 of the first filter plate 14. The first filter screen 18 (with a mesh diameter of D1) undergoes secondary filtration. The filtrate continues to flow under gravity through the second funnel and through the second filter screen 20 (with a mesh diameter of D2 < D1) of the second filter plate 14 for fine filtration. Finally, it is discharged from the recycling bin 1 through the discharge pipe 17. During the filtration process, a significant amount of impurities accumulates on the first filter screen 18 and the second filter screen 20. When cleaning the impurities, the controller 2 can start the second motor 11 on the upper first filter screen 18. The output of the second motor 11 drives the lead screw 12 to rotate, and the lead screw 12 drives the transmission connection... The first cleaning brush 13 on the outer surface moves to the right along the guide rod 19, cleaning the impurities accumulated on the surface of the first filter screen 18 to the right side of the screen frame 9, and then sliding out through the slide plate 28. The second filter screen 20 below can be cleaned manually. During cleaning, first pull the cleaning rod 23 and the second cleaning brush 24 to the left, then push the cleaning rod 23 and the second cleaning brush 24 so that the second cleaning brush 24 is in close contact with the second filter screen 20, pushing the impurities on the surface of the second filter screen 20 to the right side of the second filter screen 20, and then sliding out through the slide plate 28. The impurities can be removed below the slide plate 28. A collection box is placed to collect impurities and liquid alkali flowing out from the slide plate 28. When replacing the second filter screen 20, pull the U-shaped lever 25. The U-shaped lever 25 drives the baffle 27 to move and disengage from the third through hole inside the filter plate 14, removing the filter plate 14 from the recycling box 1. Replace the second filter screen 20 with a new one, put the filter plate 14 back in its original position, and then release the U-shaped lever 25. The spring 26 releases its elasticity and pushes the baffle 27, causing the baffle 27 to enter the third through hole inside the filter plate 14 to limit and fix the filter plate 14, thus completing the replacement of the second filter screen 20.

[0040] 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 device for recycling and reusing sodium carboxymethyl cellulose solution, comprising a recycling tank, characterized in that: A controller is located on the left side of the recycling bin. A support plate is located on the inner wall of the recycling bin. A first protective box is located on the top of the support plate. A first motor is located on the inner bottom wall of the first protective box. A turntable is located at the output end of the first motor. A connecting rod is rotatably connected to one side of the turntable via a pin. A slot is opened inside the first protective box, and a slider is engaged inside the slot. An L-shaped plate is welded to the top of the slider, and a screen frame is welded to the other end of the L-shaped plate. A second protective box is located on the rear inner wall of the recycling bin. A second motor is located on the inner bottom wall of the second protective box. A lead screw is located at the output end of the second motor. A first cleaning brush is connected to the outer surface of the lead screw. A sliding groove is opened inside the front wall of the recycling bin, and a filter plate is engaged in the sliding groove. Card boxes are located on both the left and right sides of the recycling bin.

2. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The recycling bin is equipped with a feed pipe at the top and a discharge pipe at the bottom.

3. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The screen frame is equipped with a first filter screen inside. The other end of the connecting rod is rotatably connected to one side of the slider through a pin. The inner side wall of the recycling box is equipped with a guide rod, and the other end of the first cleaning brush is sleeved on the outer surface of the guide rod.

4. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The number of filter plates is two, and a second filter screen is provided inside the filter plate. The inner side wall of the recycling box is provided with a first funnel, a second funnel and a storage box. The first funnel is located above the first filter screen, the storage box is located above the first filter plate, and a control valve is provided inside the outlet of the storage box. The second funnel is located above the second filter plate, and the first filter plate is located above the second filter plate.

5. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The left wall of the recycling bin has a first through hole, and a cleaning rod adapted to the inner diameter of the first through hole is installed in the first through hole. The other end of the cleaning rod is threaded to a second cleaning brush.

6. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The inner wall of the card box has a second through hole, and a U-shaped pull rod adapted to the inner diameter of the second through hole is provided in the second through hole. A spring is sleeved on the outer surface of the U-shaped pull rod, and a baffle is welded to the outer surface of the U-shaped pull rod. A third through hole is provided inside the left and right walls of the filter plate.

7. The sodium carboxymethyl cellulose liquid alkali recycling device according to claim 1, characterized in that: The recycling bin is equipped with three sliding plates on its right side.

Images