Defluorination device and defluorination system

Abstract

The utility model relates to the technical field of lithium battery recovery, and discloses a defluorination device and a defluorination system, the defluorination system comprises a liquid storage tank, a feeding pump, a feeding pipeline, a discharging pipeline, an accommodating tank and a defluorination device; the defluorination device comprises a shell and a liquid separation assembly, according to the system, the liquid separation assembly is arranged in the shell, so that after entering the shell, the battery black powder leaching liquid flows through the first branch pipe to the liquid separation openings of the second branch pipe and flows to the fluorine removal resin from the liquid separation openings, and due to the fact that the pipe diameter of the second branch pipe and the calibers of the liquid separation openings are gradually reduced from the connecting end to the closed end, the fluorine removal effect is improved; the flow velocity of the battery black powder lixivium flowing out of each liquid separation port is the same, and bias flow influence does not occur between the lixivium, so that the lixivium is more fully contacted with the fluorine removal resin, and the adsorption effect of the fluorine removal resin on fluorine ions is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to a defluorination device and a defluorination system. Background Art

[0002] When recycling lithium battery black powder, the fluoride ions in the black powder need to be removed and recycled to avoid contaminating the production equipment and even the environment in subsequent processes.

[0003] At present, the defluorination device mainly adsorbs the battery black powder leachate through the defluorination resin, that is, after the battery black powder leachate is transported to the inside of the defluorination resin, the fluoride ions are adsorbed by the defluorination resin. In the existing defluorination device, after the battery black powder leachate is input into the inside of the defluorination resin, the battery black powder leachate is concentrated together and moves along a fixed direction, and the defluorination resin in the defluorination device is not fully utilized, resulting in poor adsorption effect. Utility Model Content

[0004] The purpose of the utility model is to provide a defluorination device and a defluorination system, which can improve the adsorption effect of fluoride ions.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a defluorination device, comprising: a shell and a liquid separation component; the shell is respectively provided with a liquid inlet and a liquid outlet on both sides of a first direction, the shell has a storage cavity inside, the storage cavity is used to place the defluorination resin, the liquid inlet, the storage cavity and the liquid outlet are connected in sequence; the liquid separation component comprises a first branch pipe and a second branch pipe, the first branch pipe is arranged at the liquid inlet and extends along the first direction, the second branch pipe is located in the storage cavity, and one end of the second branch pipe is connected to the first branch pipe; the second branch pipe has a plurality of liquid separation ports, the plurality of liquid separation ports are arranged at intervals along the axial direction of the second branch pipe, and the liquid separation ports are arranged toward the defluorination resin, one end of the second branch pipe connected to the first branch pipe is a connecting end, and the other end is a closed end, from the connecting end to the closed end, the diameter of the second branch pipe gradually decreases, and the diameters of the plurality of liquid separation ports gradually decrease.

[0006] Optionally, the liquid separation component includes a plurality of second branch pipes, and the plurality of second branch pipes are evenly spaced along the circumference of the first branch pipe.

[0007] Optionally, it also includes a filter assembly, which is arranged in the storage chamber and divides the storage chamber into an adsorption chamber and a filter chamber in the first direction, the adsorption chamber is used to place the defluorination resin and is connected to the liquid inlet, the filter chamber is connected to the liquid outlet, and the second branch pipe is located in the adsorption chamber.

[0008] Optionally, the filter assembly includes a baffle and a water cap, the baffle is disposed in the storage chamber and divides the storage chamber into the adsorption chamber and the filter chamber in the first direction, and the water cap is detachably mounted on the baffle and is used for filtering.

[0009] Optionally, the filter assembly includes a plurality of water caps, and the plurality of water caps are evenly spaced apart and arranged on the baffle.

[0010] Optionally, the shell includes a cylinder, a first head and a second head, the cylinder is open at both ends in the first direction, the first head and the second head are respectively detachably installed on the two ends of the cylinder in the first direction, the first head, the cylinder and the second head together form a storage cavity, the liquid inlet is arranged on the first head, and the liquid outlet is arranged on the second head.

[0011] Optionally, the shell further has a filling port and a discharge port, the filling port is connected to the storage cavity and is used to fill the defluorination resin into the storage cavity, and the discharge port is connected to the storage cavity and is used to discharge the defluorination resin in the storage cavity.

[0012] Optionally, a discharge pipe is further included, which is inserted into the discharge port and is trumpet-shaped, and the diameter of the discharge pipe on the side facing the storage chamber is smaller than the diameter of the discharge pipe on the side away from the storage chamber.

[0013] In order to achieve the same purpose, the utility model also provides a defluorination system, including: a liquid storage tank, a feed pump, a feed pipe, a discharge pipe, a containing tank and the defluorination device as described above, the liquid storage tank is connected to the first branch pipe through the feed pipe, the liquid storage tank is used to place the battery black powder leachate, the feed pump is arranged on the feed pipe, and is used to pump the battery black powder leachate in the liquid storage tank to the first branch pipe, the containing tank is connected to the liquid outlet through the discharge pipe, and the containing tank is used to place the treated battery black powder leachate.

[0014] Optionally, a precooler is also included, which is arranged on the feed pipeline and located between the feed pump and the defluorination device, and the precooler is used to reduce the temperature of the battery black powder leachate in the feed pipeline.

[0015] Compared with the prior art, the defluorination device and defluorination system of the utility model embodiment have the following beneficial effects: the device sets a liquid separation component in the shell, so that after the battery black powder leachate enters the shell, it will flow through the first branch pipe to each liquid separation port of the second branch pipe, and flow to the defluorination resin from multiple liquid separation ports. Since the diameter of the second branch pipe and the diameter of the liquid separation port gradually decrease from the connecting end to the closed end, the flow rate of the battery black powder leachate flowing out of each liquid separation port is the same, and there will be no deviation between each other, so that it can be more fully in contact with the defluorination resin, thereby improving the adsorption effect of the defluorination resin on fluoride ions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the defluorination device of an embodiment of the utility model;

[0017] Figure 2 It is a bottom view of the liquid separation component of the embodiment of the utility model;

[0018] Figure 3 is a side view of the liquid separation component of an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the housing of an embodiment of the utility model;

[0020] Figure 5 It is a schematic structural diagram of the defluorination system according to an embodiment of the utility model.

[0021] In the figure, 1, defluorination device; 11, shell; 111, cylinder; 112, first head; 1121, liquid inlet; 113, second head; 1131, liquid outlet; 114, storage chamber; 1141, adsorption chamber; 1142, filtration chamber; 115, filling port; 116, discharge port; 12, liquid separation component; 121, first branch pipe; 122, second branch pipe; 1221, liquid separation port; 1222, connecting end; 1223, closed end; 13, filtration component; 131, baffle; 132, water cap; 14, defluorination resin; 15, discharge pipe; 2, liquid storage tank; 3, feed pump; 4, feed pipeline; 5, discharge pipeline; 6, accommodating tank; 7, precooler; X, first direction. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] like Figure 1-Figure 3 As shown, a defluorination device 1 of an embodiment of the utility model comprises: a shell 11 and a liquid separation component 12; the shell 11 is provided with a liquid inlet 1121 and a liquid outlet 1131 on both sides of the first direction X, respectively; the shell 11 has a storage chamber 114 inside, the storage chamber 114 is used to place the defluorination resin 14, the liquid inlet 1121, the storage chamber 114 and the liquid outlet 1131 are connected in sequence; the liquid separation component 12 comprises a first branch pipe 121 and a second branch pipe 122, the first branch pipe 121 is provided at the liquid inlet 1121 and extends along the first direction X, and the second branch pipe 12 2 is located in the storage cavity 114, and one end of the second branch pipe 122 is connected to the first branch pipe 121; the second branch pipe 122 has a plurality of liquid separation ports 1221, and the plurality of liquid separation ports 1221 are arranged at intervals along the axial direction of the second branch pipe 122, and the liquid separation ports 1221 are arranged toward the defluorinated resin 14, one end of the second branch pipe 122 connected to the first branch pipe 121 is a connecting end 1222, and the other end is a closed end 1223, and from the connecting end 1222 to the closed end 1223, the diameter of the second branch pipe 122 gradually decreases, and the diameters of the plurality of liquid separation ports 1221 gradually decrease.

[0026] Based on the above scheme, the device sets a liquid separation component 12 in the shell 11, so that after the battery black powder leachate enters the shell 11, it will flow through the various liquid separation ports 1221 from the first branch pipe 121 to the second branch pipe 122, and flow from multiple liquid separation ports 1221 to the defluorination resin 14. Since the diameter of the second branch pipe 122 and the diameter of the liquid separation port 1221 gradually decrease from the connecting end 1222 to the closed end 1223, the flow rate of the battery black powder leachate flowing out of each liquid separation port 1221 is the same, and there will be no deviation between each other, so that it can more fully contact with the defluorination resin 14, thereby improving the adsorption effect of the defluorination resin 14 on fluoride ions.

[0027] In some embodiments, the fluorine-removing resin 14 is a macroporous adsorption resin loaded with aluminum or lanthanum.

[0028] like Figure 2 As shown, in order to further improve the adsorption effect, the liquid separation component 12 includes a plurality of second branch pipes 122, and the plurality of second branch pipes 122 are evenly spaced along the circumference of the first branch pipe 121. The liquid is simultaneously diverted through the liquid separation ports 1221 on the plurality of second branch pipes 122, so that the battery black powder leachate can be in contact with the defluorination resin 14 more fully.

[0029] like Figure 1 As shown, for ease of use, it also includes a filter component 13, which is arranged in the storage chamber 114, and divides the storage chamber 114 into an adsorption chamber 1141 and a filter chamber 1142 in the first direction X. The adsorption chamber 1141 is used to place the defluorination resin 14, and is connected to the liquid inlet 1121, the filter chamber 1142 is connected to the liquid outlet 1131, and the second branch pipe 122 is located in the adsorption chamber 1141. The adsorbed battery black powder leachate is filtered through the filter component 13 to filter the defluorination resin 14 in the liquid, thereby avoiding the loss of the defluorination resin 14 in the shell 11.

[0030] like Figure 1 As shown, for ease of use, the filter assembly 13 includes a baffle 131 and a water cap 132. The baffle 131 is disposed in the storage chamber 114, and divides the storage chamber 114 into an adsorption chamber 1141 and a filter chamber 1142 in a first direction X. The water cap 132 is detachably mounted on the baffle 131. The water cap 132 is used for filtering. When the water cap 132 needs to be cleaned or replaced, it can be directly removed from the baffle 131, which is very convenient.

[0031] like Figure 1 As shown, in order to improve the filtering effect, the filter assembly 13 includes a plurality of water caps 132, and the plurality of water caps 132 are evenly spaced on the baffle 131, which can improve the filtering efficiency without affecting the flow rate of the liquid, further reducing the influence of liquid deviation and improving the adsorption effect of the defluorination resin 14.

[0032] like Figure 4 As shown, for ease of use, the shell 11 includes a cylinder 111, a first head 112 and a second head 113. The cylinder 111 is open at both ends in the first direction X. The first head 112 and the second head 113 are respectively detachably installed on the two ends of the cylinder 111 in the first direction X. The first head 112, the cylinder 111 and the second head 113 together enclose a storage chamber 114. The liquid inlet 1121 is provided on the first head 112, and the liquid outlet 1131 is provided on the second head 113. By setting the shell 11 as a structure assembled by the cylinder 111, the first head 112 and the second head 113, it is convenient to clean the interior of the shell 11.

[0033] like Figure 1 As shown, the baffle 131 is arranged in the area corresponding to the second end cap 113 . When a problem occurs in the filter assembly 13 and needs to be inspected, the second end cap 113 can be removed for inspection.

[0034] like Figure 4 As shown, for ease of use, the shell 11 also has a filling port 115 and a discharge port 116. The filling port 115 is connected to the storage chamber 114 and is used to fill the defluorination resin 14 into the storage chamber 114. The discharge port 116 is connected to the storage chamber 114 and is used to discharge the defluorination resin 14 in the storage chamber 114.

[0035] like Figure 1 As shown, for ease of use, a discharge pipe 15 is further included, which is inserted into the discharge port 116 and is in a trumpet shape. The diameter of the discharge pipe 15 on the side facing the storage chamber 114 is smaller than the diameter of the discharge pipe 15 on the side facing away from the storage chamber 114. When the defluorination resin 14 in the shell 11 is cleaned, the discharge pipe 15 is set to be in a trumpet shape so that the defluorination resin 14 can be discharged as much as possible to avoid residues of the defluorination resin 14.

[0036] like Figure 1 As shown, in some embodiments, a plurality of discharge ports 116 and a plurality of discharge pipes 15 are included. The plurality of discharge ports 116 are arranged at intervals along the circumference of the shell 11 , and the plurality of discharge pipes 15 are respectively arranged on the plurality of discharge ports 116 to improve the discharge efficiency of the defluorination resin 14 .

[0037] like Figure 5 As shown, a defluorination system of an embodiment of the utility model includes: a liquid storage tank 2, a feed pump 3, a feed pipe 4, a discharge pipe 5, a receiving tank 6 and the defluorination device 1 as above, the liquid storage tank 2 is connected to the first branch pipe 121 through the feed pipe 4, the liquid storage tank 2 is used to place the battery black powder leachate, the feed pump 3 is arranged on the feed pipe 4, and is used to pump the battery black powder leachate in the liquid storage tank 2 to the first branch pipe 121, the receiving tank 6 is connected to the liquid outlet 1131 through the discharge pipe 5, and the receiving tank 6 is used to place the treated battery black powder leachate.

[0038] In some embodiments, the liquid storage tank 2, the feed pump 3, the feed pipe 4, the discharge pipe 5, the storage tank 6 and the defluorination device 1 are all installed on the frame through hanging plates to improve the integration of the defluorination system and achieve skid installation.

[0039] In some embodiments, a plurality of defluorination devices 1 are included, and the plurality of defluorination devices 1 are connected to a liquid storage tank via a feed pipe 4 , and connected to a containing tank 6 via a discharge pipe 5 .

[0040] like Figure 5As shown, it also includes a precooler 7, which is arranged on the feed pipeline 4 and located between the feed pump 3 and the defluorination device 1. The precooler 7 is used to reduce the temperature of the battery black powder leachate in the feed pipeline 4.

[0041] In some embodiments, in order to reduce costs and withstand the corrosion of battery black powder leachate, the precooler 7 uses a graphite heat exchanger and uses cooling water or salt water as a cooling medium.

[0042] In summary, the embodiment of the utility model provides a defluorination device 1 and a defluorination system, which sets a liquid separation component 12 in the shell 11, so that after the battery black powder leachate enters the shell 11, it will flow through the various liquid separation ports 1221 from the first branch pipe 121 to the second branch pipe 122, and flow from multiple liquid separation ports 1221 to the defluorination resin 14. Since the diameter of the second branch pipe 122 and the diameter of the liquid separation port 1221 gradually decrease from the connecting end 1222 to the closed end 1223, the flow rate of the battery black powder leachate flowing out of each liquid separation port 1221 is the same, and there will be no deviation between each other, so that it can be more fully in contact with the defluorination resin 14, thereby improving the adsorption effect of the defluorination resin 14 on fluoride ions.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A defluorination device, It is characterized in that include: A housing (11) and a liquid dispensing assembly (12); The shell (11) is provided with a liquid inlet (1121) and a liquid outlet (1131) on both sides in a first direction (X), the shell (11) has a storage cavity (114) inside, the storage cavity (114) is used to place the fluorine-removing resin (14), and the liquid inlet (1121), the storage cavity (114) and the liquid outlet (1131) are connected in sequence; The liquid dispensing assembly (12) comprises a first branch pipe (121) and a second branch pipe (122); the first branch pipe (121) is arranged at the liquid inlet (1121) and extends along the first direction (X); the second branch pipe (122) is located in the storage cavity (114), and one end of the second branch pipe (122) is connected to the first branch pipe (121); The second branch pipe (122) has a plurality of liquid separation ports (1221), and the plurality of liquid separation ports (1221) are arranged at intervals along the axial direction of the second branch pipe (122), and the liquid separation ports (1221) are arranged toward the fluorine-removing resin (14). One end of the second branch pipe (122) connected to the first branch pipe (121) is a connecting end (1222), and the other end is a closed end (1223). From the connecting end (1222) to the closed end (1223), the diameter of the second branch pipe (122) gradually decreases, and the diameters of the plurality of liquid separation ports (1221) gradually decrease.

2. The defluorination device according to claim 1, It is characterized in that The liquid separation component (12) comprises a plurality of second branch pipes (122), and the plurality of second branch pipes (122) are evenly spaced along the circumference of the first branch pipe (121).

3. The defluorination device according to claim 1, It is characterized in that The invention also comprises a filter assembly (13), wherein the filter assembly (13) is arranged in the storage chamber (114) and divides the storage chamber (114) into an adsorption chamber (1141) and a filter chamber (1142) in the first direction (X); the adsorption chamber (1141) is used for placing the defluorination resin (14) and is connected to the liquid inlet (1121); the filter chamber (1142) is connected to the liquid outlet (1131); and the second branch pipe (122) is located in the adsorption chamber (1141).

4. The defluorination device according to claim 3, It is characterized in that The filter assembly (13) comprises a baffle (131) and a water cap (132); the baffle (131) is arranged in the storage chamber (114) and divides the storage chamber (114) into the adsorption chamber (1141) and the filter chamber (1142) in the first direction (X); the water cap (132) is detachably mounted on the baffle (131); and the water cap (132) is used for filtering.

5. The defluorination device according to claim 4, It is characterized in that The filter assembly (13) comprises a plurality of water caps (132), and the plurality of water caps (132) are evenly spaced and arranged on the baffle (131).

6. The defluorination device according to claim 1, It is characterized in that The shell (11) comprises a cylinder (111), a first seal (112) and a second seal (113); the cylinder (111) is open at both ends in the first direction (X); the first seal (112) and the second seal (113) are respectively detachably mounted on the two ends of the cylinder (111) in the first direction (X); the first seal (112), the cylinder (111) and the second seal (113) jointly enclose a storage chamber (114); the liquid inlet (1121) is arranged on the first seal (112); and the liquid outlet (1131) is arranged on the second seal (113).

7. The defluorination device according to claim 1, It is characterized in that The housing (11) further comprises a loading port (115) and a discharge port (116); the loading port (115) is communicated with the storage chamber (114) and is used for loading the defluorination resin (14) into the storage chamber (114); and the discharge port (116) is communicated with the storage chamber (114) and is used for discharging the defluorination resin (14) in the storage chamber (114).

8. The defluorination device according to claim 7, It is characterized in that The invention also comprises a discharge pipe (15), wherein the discharge pipe (15) is inserted into the discharge port (116), and the discharge pipe (15) is trumpet-shaped, and the diameter of the discharge pipe (15) on the side facing the storage chamber (114) is smaller than the diameter of the discharge pipe (15) on the side facing away from the storage chamber (114).

9. A defluorination system, It is characterized in that include: A liquid storage tank (2), a feed pump (3), a feed pipeline (4), a discharge pipeline (5), a containing tank (6), and a defluorination device (1) according to any one of claims 1 to 8, wherein the liquid storage tank (2) is connected to the first branch pipe (121) via the feed pipeline (4), the liquid storage tank (2) is used to place battery black powder leachate, the feed pump (3) is arranged on the feed pipeline (4), and is used to pump the battery black powder leachate in the liquid storage tank (2) to the first branch pipe (121), the containing tank (6) is connected to the liquid outlet (1131) via the discharge pipeline (5), and the containing tank (6) is used to place the treated battery black powder leachate.

10. The defluorination system according to claim 9, It is characterized in that It also includes a precooler (7), which is arranged on the feed pipeline (4) and located between the feed pump (3) and the defluorination device (1), and is used to reduce the temperature of the battery black powder leachate in the feed pipeline (4).

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