A safety adsorption device for reducing water content in carbonates

Abstract

The application discloses a safe adsorption device for reducing water content in carbonates, and belongs to the technical field of organic matter dehydration equipment. The safe adsorption device comprises a plurality of spliced pipelines, the spliced pipelines are symmetrically spliced by left pipelines and right pipelines, the upper and lower ends of the spliced pipelines in the middle region are connected through U-shaped grading pipelines, the lowermost spliced pipeline on the left side and the uppermost spliced pipeline on the right side are respectively connected with a carbonate feeding pipeline and a carbonate discharging pipeline through connecting flanges, a plurality of sets of rings are arranged outside the spliced pipelines in the middle region and are connected with support rods, the outer ends of the support rods are welded with fixing plates, and the fixing plates are fixed on the wall surface of a factory area through screws. The safe adsorption device can meet the multistage adsorption requirements of carbonates with different water contents, can realize the modular replacement of zeolite molecular sieves, filter cloth and filter screens, saves cost, and improves the adsorption efficiency without repeatedly filling and taking out a large amount of granular zeolite molecular sieves.

Description

Technical Field

[0001] This invention relates to the field of organic matter dehydration equipment technology, and more specifically, to a safe adsorption device for reducing the water content in carbonates. Background Technology

[0002] The main components of the electrolyte are carbonate, lithium hexafluorophosphate, and additives. The electrolyte production process first involves reducing the water content in the carbonate, lithium salt, and additives, then mixing these three substances to finally prepare the electrolyte. Generally, the water content in the electrolyte is required to be less than 20 ppm. Molecular sieve adsorption is the mainstream method for reducing the water content in carbonate to below 20 ppm. During the dehydration process, the molecular sieve is placed in the adsorption device, and the carbonate passes through the molecular sieve from bottom to top, achieving the goal of reducing its water content. Existing technologies mostly use zeolite molecular sieves, which are natural and synthetic crystalline aluminosilicates with molecular sieve properties. They have strong water absorption capacity and still exhibit considerable water absorption even at high temperatures, high space velocities, and low water content.

[0003] Existing adsorption equipment has the following problems: First, the adsorption pipeline is simple, with only one inlet and one outlet, which cannot meet the adsorption requirements of multiple stages with different water concentrations; second, the filling and removal of zeolite molecular sieves inside the adsorption device is cumbersome, resulting in low installation and disassembly efficiency, and the zeolite molecular sieves inside the adsorption device are not uniformly packed, easily resulting in areas with large gaps, which affects the adsorption effect on the water inside the carbonate; third, the filter cloth and filter screen inside the existing adsorption device are all fixed embedded structures, which are difficult to replace after long-term use. Only the entire adsorption device pipeline can be replaced, which is time-consuming, labor-intensive, and not economically efficient. Summary of the Invention

[0004] In view of the prior art, the present invention provides a safe adsorption device for reducing the water content in carbonates. This safe adsorption device can meet the multi-stage adsorption requirements of carbonates with different water contents. At the same time, it can realize modular replacement of zeolite molecular sieves, filter cloths and filter screens, saving costs and eliminating the need for repeated filling and removal of large amounts of granular zeolite molecular sieves, thereby improving adsorption efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A safe adsorption device for reducing the water content in carbonates includes several spliced ​​pipes, each consisting of a left-side pipe and a right-side pipe symmetrically spliced ​​together. The upper and lower ends of the spliced ​​pipe in the middle area are connected by U-shaped graded pipes. The lower left and upper right spliced ​​pipes are respectively connected to a carbonate feed pipe and a carbonate discharge pipe via connecting flanges. The spliced ​​pipe in the middle area is connected to a support rod by several rings. The outer end of the support rod is welded with a fixing plate, which is fixed to the wall of the plant area by screws around its perimeter. Connecting plates are provided at corresponding positions on the upper and lower ends of the left and right pipes. The connecting plates are fixed together by bolts to splice and fix the left and right pipes.

[0007] As a further optimization of this solution, the inlet end of the U-shaped grading pipe is connected to a liquid concentration sensor, and the outlet end of the U-shaped grading pipe is connected to a grading outlet pipe. Each grading outlet pipe is equipped with an electrically controlled valve. A control box is mounted on the support rod. The control box has a control panel on its outer side, and the control box is connected to all liquid concentration sensors and electrically controlled valves through control lines.

[0008] As a further optimization of this solution, threaded sleeves are screwed into the U-shaped graded pipe and the inner connection position of the connecting flange. The upper and lower surfaces of the threaded sleeve are provided with annular protrusions. Sealing rings are embedded in the outer and inner circumference of the annular protrusions. A cylindrical detachable frame is embedded between the upper and lower annular protrusions.

[0009] As a further optimization of this solution, replaceable mounting rings are installed at both the upper and lower ends of the detachable frame. Filter cloth and filter screen are stacked inside the replaceable mounting rings. Magnetic posts are provided on the surface of the replaceable mounting ring's frame. The magnetic posts are aligned and inserted into the through holes on the upper and lower frame surfaces of the detachable frame.

[0010] As a further optimization of this solution, the interior of the detachable frame is uniformly filled with zeolite molecular sieves.

[0011] As a further optimization of this solution, the left and right pipes are symmetrically spliced ​​together and then screwed into the threaded sleeve.

[0012] As a further optimization of this solution, the control box is connected to an external power supply from the factory area.

[0013] Compared with existing technologies, the beneficial effects of the present invention are as follows:

[0014] This invention utilizes a multi-segment spliced ​​pipe and a multi-stage U-shaped tiered pipe design to meet the multi-stage adsorption requirements of carbonates with different water contents. As the number of stages increases, the water content in the carbonate is gradually reduced. By opening the electrically controlled valve of a certain stage, carbonate liquids with different water contents at different stages can be collected in stages. At the same time, the water content of the carbonate liquid inside each segment of the U-shaped tiered pipe is monitored by a liquid concentration sensor, improving the collection accuracy and reliability. In addition, when the difference between the data of two adjacent liquid concentration sensors is small, the detachable frame between them needs to be replaced in time.

[0015] The invention features a detachable and connectable left and right pipe structure, which allows for flexible maintenance of the internal detachable frame and replaceable mounting ring. When the filter cloth and filter screen inside the replaceable mounting ring have been used for a long time, they can be replaced individually without replacing the entire adsorption pipe, thus saving economic costs.

[0016] In this invention, a detachable frame structure is designed, which is pre-filled with zeolite molecular sieves evenly. Compared with the traditional method of directly pouring granular zeolite molecular sieves into the pipe, the zeolite molecular sieves are more evenly and orderly distributed with better gap uniformity, which can improve the adsorption effect of zeolite molecular sieves and facilitate filling and replacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the safe adsorption device of the present invention;

[0018] Figure 2 This is a schematic diagram of the U-shaped hierarchical pipe connection structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the threaded sleeve installation structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the replaceable mounting ring structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the detachable frame of the present invention;

[0022] In the diagram: 1. Carbonate feed pipe; 2. Carbonate discharge pipe; 3. Left pipe; 4. Right pipe; 5. U-shaped grading pipe; 6. Collar; 7. Support rod; 8. Fixing plate; 9. Control box; 10. Liquid concentration sensor; 11. Electrically controlled valve; 12. Primary discharge pipe; 13. Secondary discharge pipe; 14. Connecting flange; 15. Connecting plate; 16. Bolt; 17. Threaded sleeve; 18. Annular protrusion; 19. Sealing ring; 20. Replaceable mounting ring; 21. Magnetic column; 22. Filter cloth and filter screen; 23. Removable frame; 24. Zeolite molecular sieve. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show components related to this application and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. For example, the thickness of the elements in the drawings may be exaggerated for clarity.

[0024] To address the problem that existing adsorption pipelines are simple, containing only one inlet and one outlet, and cannot meet the adsorption requirements of multiple stages with different water concentrations;

[0025] like Figure 1 As shown, this application includes several spliced ​​pipes, which are symmetrically spliced ​​together by left-side pipe 3 and right-side pipe 4. The upper and lower ends of the spliced ​​pipe in the middle area are connected by U-shaped graded pipes 5. The spliced ​​pipes located at the bottom left and top right are respectively connected to carbonate feed pipe 1 and carbonate discharge pipe 2 via connecting flanges 14. The spliced ​​pipe in the middle area is connected to support rods 7 by several collars 6. The outer ends of the support rods 7 are welded with fixing plates 8, and the fixing plates 8 are fixed to the factory wall by screws around them. Figure 1 The middle part is a collar, and the number of collars can be increased reasonably according to the number of spliced ​​pipes to ensure the stability and safety of the pipeline;

[0026] like Figure 2 As shown, connecting plates 15 are provided at corresponding positions on the upper and lower ends of the inner sides of the left pipe 3 and the right pipe 4. The connecting plates 15 are fixed together by bolts 16 to splice and fix the left pipe 3 and the right pipe 4.

[0027] like Figure 1 As shown, the embodiment is provided with two grading pipes. The inlet end of the middle U-shaped grading pipe 5 is connected to a liquid concentration sensor 10 and the outlet end of the U-shaped grading pipe 5 is connected to a primary outlet pipe 12. Similarly, the outlet end of the right-side U-shaped grading pipe 5 is connected to a secondary outlet pipe 13. Each grading outlet pipe is equipped with an electrically controlled valve 11. A control box 9 is mounted on the support rod 7. The outer side of the control box 9 is provided with a control panel and the control box 9 is connected to all liquid concentration sensors 10 and electrically controlled valves 11 through control lines.

[0028] Specifically, as the number of stages increases, the water content in the carbonate is gradually reduced. By opening the electrically controlled valve 11 of a certain stage, carbonate liquids with different water contents at different stages can be collected in stages. At the same time, the water content of the carbonate liquid inside each section of the U-shaped stage pipe 5 is monitored by the liquid concentration sensor 10 to improve the collection accuracy and reliability. In addition, when the difference between the data of two adjacent liquid concentration sensors 10 is small, the detachable frame 23 between them needs to be replaced in time.

[0029] To address the problems of cumbersome filling and removal of zeolite molecular sieves in existing adsorption devices, low installation and disassembly efficiency, and the fact that the filter cloth and screen inside the adsorption device are fixed and embedded structures, making them difficult to replace after long-term use, requiring the replacement of the entire adsorption device pipeline, which is time-consuming, labor-intensive, and not economically efficient.

[0030] like Figure 3 As shown, threaded sleeves 17 are screwed into the U-shaped graded pipe 5 and the inner connection position of the connecting flange 14. The upper and lower surfaces of the threaded sleeve 17 are provided with annular protrusions 18. Sealing rings 19 are embedded in the outer and inner circumference of the annular protrusions 18. A cylindrical detachable frame 23 is embedded between the upper and lower annular protrusions 18.

[0031] like Figure 4 As shown, replaceable mounting rings 20 are installed at both the upper and lower ends of the detachable frame 23. Filter cloth and filter screen 22 are stacked inside the replaceable mounting rings 20. Magnetic posts 21 are provided on the surface of the frame of the replaceable mounting rings 20. The magnetic posts 21 are aligned and inserted into the through holes on the upper and lower frame surfaces of the detachable frame 23, thus fixing the upper and lower replaceable mounting rings 20 magnetically. When disassembling and replacing, simply pull out the upper and lower replaceable mounting rings 20 and replace the damaged or ineffective filter cloth and filter screen 22 inside.

[0032] Specifically, the spliced ​​left pipe 3 and right pipe 4 structure allows for flexible maintenance of the internal detachable frame 23 and replaceable mounting ring 20. When the filter cloth and filter screen 22 inside the replaceable mounting ring 20 have been used for a long time, they can be replaced individually without replacing the entire adsorption pipe, thus saving economic costs.

[0033] To address the problem that the zeolite molecular sieve filling inside the adsorption device is not uniform, resulting in large gaps that affect the adsorption effect on the water inside the carbonate.

[0034] like Figure 5As shown, the interior of the detachable frame 23 is uniformly filled with zeolite molecular sieves 24. Compared with the traditional method of directly pouring granular zeolite molecular sieves 24 into the pipe, the zeolite molecular sieves 24 are more evenly and orderly distributed and have better gap uniformity, which can improve the adsorption effect of zeolite molecular sieves 24 on water.

[0035] In actual operation, after connecting all the components of this device, carbonate is introduced into the carbonate feed pipe 1. The carbonate first passes through the first detachable frame 23, which is uniformly filled with zeolite molecular sieve 24. The water content inside is adsorbed in the first stage. The water content in the carbonate can be detected by the first liquid concentration sensor 10. If collection is required, the first electrically controlled valve 11 is opened by the control box 9, so that the carbonate with that water content concentration flows out and is collected through the first-stage discharge pipe 12. Similarly, carbonate with less water content can be collected through the second-stage discharge pipe 13. Finally, after being adsorbed by the three detachable frames 23, the carbonate is discharged from the carbonate discharge pipe 2.

[0036] It should be noted that the above embodiments can be freely combined as needed. The above description is merely a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. All documents mentioned in this invention are incorporated herein by reference as if each document were individually incorporated by reference. Furthermore, it should be understood that after reading the above description of the present invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A safe adsorption device for reducing the water content in carbonates, characterized in that: The system includes several spliced ​​pipes, each composed of a left-side pipe and a right-side pipe symmetrically spliced ​​together. The upper and lower ends of the spliced ​​pipe in the middle area are connected by U-shaped graded pipes. The spliced ​​pipes at the bottom left and top right are respectively connected to a carbonate feed pipe and a carbonate discharge pipe via connecting flanges. The spliced ​​pipe in the middle area is connected to a support rod by several rings. The outer end of the support rod is welded with a fixing plate. The fixing plate is fixed to the wall of the factory area by screws around its perimeter. Connecting plates are provided at corresponding positions on the upper and lower ends of the left and right pipes. The connecting plates are fixed together by bolts to splice and fix the left and right pipes.

2. The safe adsorption device for reducing the water content in carbonates according to claim 1, characterized in that: The U-shaped grading pipe has a liquid concentration sensor connected to its inlet end and a grading outlet pipe connected to its outlet end. Each grading outlet pipe is equipped with an electrically controlled valve. A control box is mounted on the support rod. The control box has a control panel on its outer side and is connected to all liquid concentration sensors and electrically controlled valves via control lines.

3. The safe adsorption device for reducing the water content in carbonates according to claim 2, characterized in that: The U-shaped graded pipe and the inner connection position of the connecting flange are all screwed with threaded sleeves. The upper and lower surfaces of the threaded sleeve are provided with annular protrusions. The outer and inner circumference of the annular protrusions are fitted with sealing rings. A cylindrical detachable frame is embedded between the upper and lower annular protrusions.

4. The safe adsorption device for reducing the water content in carbonates according to claim 3, characterized in that: The detachable frame is equipped with replaceable mounting rings at both the top and bottom. Filter cloth and filter screen are stacked inside the replaceable mounting rings. Magnetic posts are provided on the surface of the frame of the replaceable mounting rings. The magnetic posts are aligned and inserted into the through holes on the surface of the top and bottom frames of the detachable frame.

5. A safe adsorption device for reducing the water content in carbonates according to claim 4, characterized in that: The interior of the detachable frame is uniformly filled with zeolite molecular sieves.

6. The safe adsorption device for reducing the water content in carbonates according to claim 5, characterized in that: The left and right pipes are symmetrically spliced ​​together and then screwed into the threaded sleeve.

7. A safe adsorption device for reducing the water content in carbonates according to claim 6, characterized in that: The control box is connected to an external power supply for the factory area.

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