Tower-type split-phase extraction device and waste battery recovery equipment

Abstract

The utility model provides a tower-type split-phase extraction device and waste battery recovery equipment. The tower-type split-phase extraction device comprises a tank body and a stirrer. A longitudinal partition plate is arranged in an inner cavity of the tank body and divides the inner cavity of the tank body into a mixed-phase side cavity and a split-phase side cavity; the heavy-phase inlet pipe is communicated with the top end part of the mixed-phase side cavity, the light-phase inlet pipe is communicated with the bottom end part of the mixed-phase side cavity, the light-phase outlet pipe is communicated with the top end part of the split-phase side cavity, and the heavy-phase outlet pipe is communicated with the bottom end part of the split-phase side cavity; the stirrer is transversely arranged in the middle of the mixed-phase side cavity, an upper inlet is formed in the top end part, facing the mixed-phase side cavity, of the stirrer, a lower inlet is formed in the bottom end part, facing the mixed-phase side cavity, of the stirrer, a stirring liquid outlet is formed in the stirrer, facing the split-phase side cavity, and the stirring liquid outlet is communicated with the split-phase side cavity; the battery crushed material solution and the extraction agent are stirred by the stirrer, so that the mixing rate and the mixing effect of the battery crushed material solution and the extraction agent can be accelerated, the boundary between the extraction liquid and the original solvent is clear, and liquid separation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of waste battery recycling, and in particular to a tower extraction device and waste battery recycling equipment. Background Art

[0002] With the extensive use of new energy vehicles, the amount of waste batteries has also increased explosively. In order to prevent waste batteries from polluting the environment, waste batteries are usually crushed, extracted, and separated to recover metal elements such as cobalt, nickel, and manganese in the batteries, ultimately reducing damage to the environment.

[0003] At present, the main method for extracting electrolyte from waste batteries is horizontal extraction equipment, which occupies a large area and is not easy to install. At the same time, the open structure is used, and the pungent exhaust gas generated during the extraction of electrolyte is directly discharged, which is easy to pollute the working environment and does not meet environmental protection requirements. Some manufacturers have also discovered this problem.

[0004] For example, Chinese patent document CN116637400A discloses an extraction tower for recycling waste batteries, including a feed pipe at the upper end of the tower body, the lower end of the feed pipe extending into the tower body, a lower sealing plug at the lower end of the feed pipe, a frame arranged around the feed pipe on the outer wall of the lower end of the feed pipe, a coil arranged in the frame, a guide sleeve arranged in the feed pipe, an armature installed in the guide sleeve along the up and down directions, a return spring arranged between the guide sleeve and the armature, the armature is fixedly connected to the lower sealing plug through a guide rod, a feeding port connected to the feed pipe is arranged on the outer wall of the feed pipe, an upper sealing plug for closing the feeding port is slidingly assembled in the feed pipe, a telescopic cylinder for driving the upper sealing plug to move is arranged on the upper side of the feed pipe, a connecting rod is arranged on the lower side of the upper sealing plug, an upper contact electrically connected to the coil is arranged at the lower end of the connecting rod, and a lower contact electrically connected to the coil is arranged at the upper end of the guide sleeve.

[0005] However, the design of the extraction tower for recycling waste batteries has the following problems:

[0006] The above-mentioned extraction tower for recycling waste batteries can continuously extract waste batteries and effectively control the emission of pungent exhaust gas, but it mainly relies on gravity to mix the extractant with the battery crushed material, and the mixing process is slow and the mixing effect is poor. At the same time, the boundary between the extract and the original solvent after mixing is blurred, making the subsequent liquid separation process complicated. Utility Model Content

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tower-type phase separation extraction device and waste battery recycling equipment with good mixing effect and clear phase separation.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A tower phase separation extraction device, comprising:

[0010] A tank body, wherein the inner cavity of the tank body is provided with a longitudinal partition, and the longitudinal partition divides the inner cavity of the tank body into a mixed-phase side cavity and a split-phase side cavity; a heavy-phase inlet pipe, a light-phase inlet pipe, a light-phase outlet pipe and a heavy-phase outlet pipe are provided on the outer side of the tank body, the heavy-phase inlet pipe is connected to the top end of the mixed-phase side cavity, the light-phase inlet pipe is connected to the bottom end of the mixed-phase side cavity, the light-phase outlet pipe is connected to the top end of the split-phase side cavity, and the heavy-phase outlet pipe is connected to the bottom end of the split-phase side cavity;

[0011] A stirrer, wherein the stirrer is horizontally placed in the middle of the mixed-phase side chamber, and the two ends of the stirrer are respectively embedded in the longitudinal partition and the cavity wall of the mixed-phase side chamber; the stirrer has an upper inlet opening toward the top end of the mixed-phase side chamber, the stirrer has a lower inlet opening toward the bottom end of the mixed-phase side chamber, and the stirrer has a stirring liquid outlet opening toward the phase-separation side chamber, and the stirring liquid outlet is connected to the phase-separation side chamber.

[0012] In one embodiment, the agitator includes a cylinder, a driver, a rotating shaft and a plurality of paddles;

[0013] The two ends of the cylinder are respectively embedded in the longitudinal partition and the cavity wall of the mixed-phase side cavity, the upper inlet, the lower inlet and the stirring liquid outlet are all opened on the cylinder, the driver is arranged on the outside of the cylinder, the rotating shaft is built into the cylinder, the rotating shaft is connected to the rotating driving end of the driver, and a plurality of the paddles are arranged at intervals along the length direction of the rotating shaft.

[0014] In one embodiment, the rotating shaft is axially opposite to the stirring liquid outlet, the paddle includes a plurality of stirring blades and a plurality of spiral blades, the upper inlet and the lower inlet are arranged close to the stirring blades, and the spiral blades are arranged close to the stirring liquid outlet.

[0015] In one embodiment, the mixed-phase side chamber is divided into a heavy phase temporary storage chamber, a mixing chamber and a light phase temporary storage chamber, which are arranged in sequence from top to bottom. The agitator is arranged in the mixing chamber, the heavy phase inlet pipe is connected to the heavy phase temporary storage chamber, and the light phase inlet pipe is connected to the light phase temporary storage chamber. The heavy phase temporary storage chamber and the mixing chamber are separated by a first opening and closing structure. When the first opening and closing structure is opened, the heavy phase temporary storage chamber is connected to the mixing chamber. The light phase temporary storage chamber and the mixing chamber are separated by a second opening and closing structure. When the second opening and closing structure is opened, the light phase temporary storage chamber is connected to the mixing chamber.

[0016] In one embodiment, the first opening and closing structure includes a first partition and a first flow control valve, an upper feed port is provided on the first partition, the mixing chamber is connected to the heavy phase temporary storage chamber through the upper feed port, and the first flow control valve is arranged at the upper feed port.

[0017] In one embodiment, the first opening and closing structure also includes a first pressure gauge and a first control module, and the first flow control valve is a first solenoid valve; the first pressure gauge is embedded in the cavity wall of the mixing chamber, and the detection end of the first pressure gauge is arranged opposite to the upper inlet; the control module is electrically connected to the first solenoid valve and the first pressure gauge, respectively.

[0018] In one embodiment, the second opening and closing structure includes a second partition and a second flow control valve, a lower feed port is provided on the second partition, the mixing chamber is connected to the light phase temporary storage chamber through the lower feed port, and the flow control valve is arranged at the lower feed port.

[0019] In one embodiment, the second opening and closing structure also includes a second pressure gauge and a second control module, and the second flow control valve is a second solenoid valve; the second pressure gauge is embedded in the cavity wall of the mixing chamber, and the detection end of the second pressure gauge is arranged opposite to the lower inlet; the control module is electrically connected to the second solenoid valve and the second pressure gauge, respectively.

[0020] In one of the embodiments, a transparent observation tube is further provided on the outer side of the tank body, and the transparent observation tube includes an observation main pipe, an upper portion pipe, a middle portion pipe and a lower portion pipe, one end of the observation main pipe is connected to the top end of the phase-splitting side cavity through the upper portion pipe, the other end of the observation main pipe is connected to the bottom end of the phase-splitting side cavity through the lower portion pipe, and the middle part of the observation main pipe is connected to the middle part of the phase-splitting side cavity through the middle portion pipe.

[0021] A waste battery recycling device comprises the tower-type phase separation extraction device of any one of the above embodiments.

[0022] Compared with the prior art, the present invention has at least the following advantages:

[0023] 1) By arranging a longitudinal partition in the inner cavity of the tank body, the inner cavity of the tank body is divided into a mixed phase side cavity and a phase separation side cavity, so that the mixed phase side cavity and the phase separation side cavity are arranged side by side. Compared with the traditional stacked extraction tower, the height is smaller, the occupation area is small, the center of gravity is lower, and the placement is more stable.

[0024] 2) The battery crushing material solution enters from the heavy phase inlet pipe, and the extractant enters from the light phase inlet pipe. Because the heavy phase inlet pipe is connected to the top part of the mixed phase side chamber, the agitator is placed horizontally in the middle part of the mixed phase side chamber, and the light phase inlet pipe is connected to the bottom part of the mixed phase side chamber. At the same time, the battery crushing material solution contains metal elements with high density, which will sink under the action of gravity while the extractant will float. Because the agitator opens an upper inlet toward the top part of the mixed phase side chamber, and the agitator opens a lower inlet toward the bottom part of the mixed phase side chamber, the battery crushing material solution can be mixed with the extractant in the agitator. The agitator stirs the battery crushing material solution and the extractant, which can accelerate the mixing rate and mixing effect of the battery crushing material solution and the extractant. The battery crushing material solution and the extractant are stirred and mixed by the agitator and then enter the phase separation side chamber.

[0025] 3) By opening the stirring liquid outlet of the agitator toward the phase-separation side chamber, the fully mixed battery crushing material-extractant stirring liquid can enter the phase-separation side chamber through the stirring liquid outlet. After the battery crushing material-extractant stirring liquid has been standing for a long time, the extractant will carry the metal elements and separate them from the battery crushing material-extractant stirring liquid. The phase-separation side chamber is consistent with the height of the tank body, the light phase outlet pipe is connected to the top end of the phase-separation side chamber, and the heavy phase outlet pipe is connected to the bottom end of the phase-separation side chamber, so that there is a sufficient distance between the light phase outlet pipe and the heavy phase outlet pipe, which can provide sufficient phase separation distance and time for the battery crushing material-extractant stirring liquid, thereby making the boundary between the extractant and the original solvent clear, and finally facilitating the subsequent liquid separation operation and improving the extraction purity of the extractant for metal elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic structural diagram of a tower-type phase separation extraction device according to an embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 The cross-sectional structure diagram of the tower phase separation extraction device shown;

[0029] Figure 3 for Figure 1 A partial cross-sectional view of a tower phase separation extraction device is shown.

[0030] Reference numerals: 100, tower phase separation extraction device; 110, tank body; 1110, longitudinal partition; 111, first opening and closing structure; 11a, first partition; 11b, first flow control valve; 11c, upper feed inlet; 11d, first pressure gauge; 101d, first wire hole; 112, second opening and closing structure; 12a, second partition; 12b, second flow control valve; 12c, lower feed inlet; 12d, second pressure gauge; 102d, second wire hole; 131, control panel; 1120, mixed phase side chamber; 112a, heavy phase temporary storage chamber; 112b, mixing chamber; 112c, light phase temporary storage chamber; 1121, heavy phase inlet pipe; 1122, light phase inlet pipe; 1130, phase separation side chamber; 1131, light phase outlet pipe; 1132, heavy phase outlet pipe; 120, agitator; 1210, upper inlet; 1220, lower inlet; 1230, stirring liquid outlet; 121, cylinder; 122, driver; 123, rotating shaft; 124, paddle; 1241, stirring blade; 1242, spiral blade; 130, transparent observation tube; 1310, observation main pipe; 1320, upper sub-pipe; 1330, middle sub-pipe; 1340, lower sub-pipe. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0035] like Figure 1 and Figure 2 As shown, a tower phase separation extraction device 100 of an embodiment includes a tank body 110 and an agitator 120. The inner cavity of the tank body 110 is provided with a longitudinal partition 1110, and the longitudinal partition 1110 divides the inner cavity of the tank body 110 into a mixed phase side cavity 1120 and a phase separation side cavity 1130; the outer side of the tank body 110 is provided with a heavy phase inlet pipe 1121, a light phase inlet pipe 1122, a light phase outlet pipe 1131 and a heavy phase outlet pipe 1132, the heavy phase inlet pipe 1121 is connected to the top end of the mixed phase side cavity 1120, the light phase inlet pipe 1122 is connected to the bottom end of the mixed phase side cavity 1120, the light phase outlet pipe 1131 is connected to the top end of the phase separation side cavity 1130, and the heavy phase outlet pipe 1132 is connected to the bottom end of the mixed phase side cavity 1120. The agitator 120 is arranged horizontally in the middle of the mixed-phase side chamber 1120, and the two ends of the agitator 120 are respectively embedded in the longitudinal partition 1110 and the cavity wall of the mixed-phase side chamber 1120; the agitator 120 is provided with an upper inlet 1210 at the top end of the mixed-phase side chamber 1120, and the agitator 120 is provided with a lower inlet 1220 at the bottom end of the mixed-phase side chamber 1120, and the agitator 120 is provided with a stirring liquid outlet 1230 toward the phase-separation side chamber 1130, and the stirring liquid outlet 1230 is connected to the phase-separation side chamber 1130.

[0036] It should be noted that the liquid entering from the heavy phase inlet pipe 1121 is the heavy phase liquid, and the liquid entering from the light phase inlet pipe 1122 is the light phase liquid. The density of the heavy phase liquid is greater than the density of the light phase liquid. For the convenience of explanation, the heavy phase liquid is the battery crushing material solution (i.e., the solution to be extracted), and the light phase liquid is the extractant (which can be a sodium carbonate solution or a sodium sulfide solution). Of course, this is not limited here, and those skilled in the art can also replace it as needed.

[0037] It can be understood that by arranging the longitudinal partition 1110 in the inner cavity of the tank body 110, the inner cavity of the tank body 110 is divided into the mixed phase side cavity 1120 and the phase separation side cavity 1130, so that the mixed phase side cavity 1120 and the phase separation side cavity 1130 are arranged in parallel. Compared with the traditional stacked extraction tower, the height is smaller, the occupation area is small, and the center of gravity is lower and the placement is more stable.

[0038] It can be understood that the battery crushing material solution enters from the heavy phase inlet pipe 1121, and the extractant enters from the light phase inlet pipe 1122, because the heavy phase inlet pipe 1121 is connected to the top part of the mixed-phase side chamber 1120, the agitator 120 is placed horizontally in the middle part of the mixed-phase side chamber 1120, and the light phase inlet pipe 1122 is connected to the bottom part of the mixed-phase side chamber 1120. At the same time, the battery crushing material solution contains metal elements with a high density, which will sink under the action of gravity while the extractant will float, because the agitator 120 opens an upper inlet 1210 toward the top part of the mixed-phase side chamber 1120, and the agitator 120 opens a lower inlet 1220 toward the bottom part of the mixed-phase side chamber 1120, so that the battery crushing material solution can be mixed with the extractant in the agitator 120. The agitator 120 stirs the battery crushing material solution and the extractant, which can accelerate the mixing rate and mixing effect of the battery crushing material solution and the extractant.

[0039] It can be understood that by opening the stirring liquid outlet 1230 of the agitator 120 toward the phase-separation side chamber 1130, the fully mixed battery crushing material-extractant stirring liquid can enter the phase-separation side chamber 1130 through the stirring liquid outlet 1230. After the battery crushing material-extractant stirring liquid has been standing for a long time, the extractant will carry the metal elements and separate them from the battery crushing material-extractant stirring liquid. The phase-separation side chamber 1130 is consistent with the height of the tank body 110, and the light phase outlet pipe 1131 is connected to the top end of the phase-separation side chamber 1130, and the heavy phase outlet pipe 1132 is connected to the bottom end of the phase-separation side chamber 1130, so that there is a sufficient distance between the light phase outlet pipe 1131 and the heavy phase outlet pipe 1132, which can provide sufficient phase separation distance and time for the battery crushing material-extractant stirring liquid, thereby making the boundary between the extractant and the original solvent clear, and finally facilitating the subsequent liquid separation operation and improving the extraction purity of the extractant for metal elements.

[0040] Combination Figure 2As shown, in one embodiment, the agitator 120 includes a cylinder 121, a driver 122, a rotating shaft 123 and a plurality of paddles 124; the two ends of the cylinder 121 are respectively embedded in the longitudinal partition 1110 and the cavity wall of the mixed-phase side cavity 1120, the upper inlet 1210, the lower inlet 1220 and the stirring liquid outlet 1230 are all opened on the cylinder 121, the driver 122 is arranged on the outside of the cylinder 121, the rotating shaft 123 is built into the cylinder 121, the rotating shaft 123 is connected to the rotating driving end of the driver 122, and the plurality of paddles 124 are arranged at intervals along the length direction of the rotating shaft 123. It can be understood that because the upper inlet 1210, the lower inlet 1220 and the stirring liquid outlet 1230 are all opened on the cylinder 121, the battery crushing material solution can enter the cylinder 121 from the upper inlet 1210, and the extractant can enter the cylinder 121 from the lower inlet 1220. Because the rotating shaft 123 is built into the cylinder 121, the rotating shaft 123 is connected to the rotating drive end of the driver 122, and a plurality of paddles 124 are arranged at intervals along the length direction of the rotating shaft 123, so that the rotating shaft 123 is driven to rotate by the driver 122, and the rotating shaft 123 drives a plurality of paddles 124 to stir to fully mix the battery crushing material solution and the extractant, further improving the mixing efficiency and effect of the battery crushing material solution and the extractant. Specifically, a plurality of paddles 124 are evenly spaced along the length direction of the rotating shaft 123, so that the mixing degree of the battery crushing material solution and the extractant at various locations of the rotating shaft 123 can be uniform.

[0041] Combination Figure 2 As shown, in one embodiment, the rotating shaft 123 and the stirring liquid outlet 1230 are axially arranged opposite to each other, the paddle 124 includes a plurality of stirring blades 1241 and a plurality of spiral blades 1242, the upper inlet 1210 and the lower inlet 1220 are arranged close to the stirring blades 1241, and the spiral blades 1242 are arranged close to the stirring liquid outlet 1230. It can be understood that because the upper inlet 1210 and the lower inlet 1220 are arranged close to the position of the stirring blade 1241, and the spiral blade 1242 is arranged close to the stirring liquid outlet 1230, the battery crushing material solution entering from the upper inlet 1210 and the extractant entering from the lower inlet 1220 can first be fully stirred by the stirring blade 1241 to form a battery crushing material-extractant stirring liquid, and the battery crushing material-extractant stirring liquid is then applied with a directional thrust toward the stirring liquid outlet 1230 through the spiral blade 1242. The directional thrust pushes the battery crushing material-extractant stirring liquid into the directional side chamber, which can accelerate the flow of the battery crushing material-extractant stirring liquid to the directional side chamber and is not easy to flow back, thereby ultimately improving the speed of the entire extraction.

[0042] In one embodiment, the mixed phase side chamber 1120 is divided into a heavy phase temporary storage chamber 112a, a mixing chamber 112b and a light phase temporary storage chamber 112c, which are arranged in sequence from top to bottom. The agitator 120 is arranged in the mixing chamber 112b, the heavy phase inlet pipe 1121 is connected to the heavy phase temporary storage chamber 112a, and the light phase inlet pipe 1122 is connected to the heavy phase temporary storage chamber 112a. The heavy phase temporary storage chamber 112a and the mixing chamber 112b are separated by a first opening and closing structure 111. When the first opening and closing structure 111 is opened, the heavy phase temporary storage chamber 112a is connected to the mixing chamber 112b. The light phase temporary storage chamber 112c and the mixing chamber 112b are separated by a second opening and closing structure 112. When the first opening and closing structure 111 is opened, the light phase temporary storage chamber 112c is connected to the mixing chamber 112b. It can be understood that because the heavy phase inlet pipe 1121 is connected to the heavy phase temporary storage chamber 112a, the battery crushing material solution can enter the heavy phase temporary storage chamber 112a from the heavy phase inlet pipe 1121, and because the light phase inlet pipe 1122 is connected to the heavy phase temporary storage chamber 112a, the extractant can enter the heavy phase temporary storage chamber 112a from the light phase inlet pipe 1122. By setting the first opening and closing structure 111 between the heavy phase temporary storage chamber 112a and the mixing chamber 112b, A second opening and closing structure 112 is provided between the mixing chamber 112b and the light phase temporary storage chamber 112a, so that the mixing chamber 112b is separated from the heavy phase temporary storage chamber 112a and the light phase temporary storage chamber 112c. The user can control the flow rate of the battery crushing material solution entering the mixing chamber 112b by opening or closing the first opening and closing structure 111, and can control the flow rate of the extractant entering the mixing chamber 112b by opening or closing the second opening and closing structure 112, so that the extractant and the battery crushing material solution in the mixing chamber 112b are maintained at an optimal mixing ratio, further improving the extraction effect. It should be noted that the optimal mixing ratio of the extractant and the battery crushing material solution can be obtained after repeated experiments, and the present disclosure does not limit the optimal mixing ratio of the extractant and the battery crushing material solution.

[0043] Combination Figure 3As shown, specifically, the first opening and closing structure 111 includes a first baffle 11a and a first flow control valve 11b, an upper feed port 11c is provided on the first baffle 11a, the mixing chamber 112b is connected to the heavy phase temporary storage chamber 112a through the upper feed port 11c, and the first flow control valve 11b is arranged at the upper feed port 11c. It can be understood that the heavy phase temporary storage chamber 112a and the mixing chamber 112b can be well separated by the first baffle 11a, and by arranging the first flow control valve 11b at the upper feed port 11c, the upper feed port 11c can be opened or closed by the first flow control valve 11b, so as to realize accurate control of the flow rate of the battery crushing material solution entering the mixing chamber 112b. Furthermore, the first opening and closing structure 111 also includes a first pressure gauge 11d and a first control module (not shown), the first flow control valve 11b is a first solenoid valve; the first pressure gauge 11d is embedded in the cavity wall of the mixing chamber 112b, and the detection end of the first pressure gauge 11d is arranged opposite to the upper inlet 1210; the control module is electrically connected to the first solenoid valve and the first pressure gauge 11d. It can be understood that because the detection end of the first pressure gauge 11d is arranged opposite to the upper inlet 1210, the user can measure the pressure value near the upper inlet 1210 through the first pressure gauge 11d, and judge whether the inflow of the battery crushing material solution meets the standard through the pressure value, and because the first control module is electrically connected to the first solenoid valve and the first pressure gauge 11d, the first control module can control the opening or closing of the first solenoid valve according to the inflow of the battery crushing material solution, so that the control of the inflow of the battery crushing material solution is more accurate and intelligent. It should be noted that the parameters for the inflow of the battery crushing material solution to meet the standard can be obtained after repeated experiments, and the present disclosure does not limit the parameters for the inflow of the battery crushing material solution to meet the standard. At the same time, the method of the first control module controlling the first solenoid valve and the method of the second control module controlling the second solenoid valve are both prior arts and are not within the scope of protection of the present disclosure.

[0044] Combination Figure 3As shown, similarly, the second opening and closing structure 112 includes a second partition 12a and a second flow control valve 12b, a lower feed port 12c is provided under the second partition 12a, the mixing chamber 112b is connected to the light phase temporary storage chamber 112c through the lower feed port 12c, and the second flow control valve 12b is arranged at the lower feed port 12c. It can be understood that the light phase temporary storage chamber 112c can be well separated from the mixing chamber 112b by the second partition 12a, and by arranging the second flow control valve 12b at the lower feed port 12c, the lower feed port 12c can be opened or closed by the second flow control valve 12b, so as to realize accurate control of the flow rate of the extractant entering the mixing chamber 112b. Further, the second opening and closing structure 112 also includes a second pressure gauge 12d and a second control module (not shown), and the second flow control valve 12b is a second solenoid valve; the second pressure gauge 12d is embedded in the cavity wall of the mixing chamber 112b, and the detection end of the second pressure gauge 12d is arranged opposite to the lower inlet 1220; the control module is electrically connected to the second solenoid valve and the second pressure gauge 12d. It can be understood that because the detection end of the second pressure gauge 12d is arranged opposite to the lower inlet 1220, the user can measure the pressure value near the lower inlet 1220 through the second pressure gauge 12d, and judge whether the inflow of the extractant meets the standard by the pressure value, and because the second control module is electrically connected to the second solenoid valve and the second pressure gauge 12d, the second control module can control the opening or closing of the second solenoid valve according to the inflow of the extractant, so that the control of the inflow of the extractant is more accurate and intelligent. It should be noted that the parameters for the inflow of the extractant to meet the standard can be obtained after repeated experiments, and the present disclosure does not limit the parameters for the inflow of the extractant to meet the standard.

[0045] Combination Figure 2 As shown, in one embodiment, the first control module and the second control module are both integrated in the control panel 131, and the first control module is electrically connected to the second control module. It can be understood that the inflow of the battery crushing material solution is measured by the first pressure gauge 11d, and the inflow of the extractant is measured by the second pressure gauge 12d. The control panel 131 can compare the inflow of the battery crushing material solution with the inflow of the extractant measured by the second pressure gauge 12d, and choose to control the opening or disconnection of the first solenoid valve or the second solenoid valve, adjust the inflow of the battery crushing material solution and the inflow of the extractant, so as to maintain the optimal mixing ratio of the extractant and the battery crushing material solution in real time, and ensure the best extraction effect. It should be noted that the method of measuring the inflow of the battery crushing material solution by the first pressure gauge 11d and the method of measuring the inflow of the extractant by the second pressure gauge 12d are both prior arts and are not within the scope of protection of the present disclosure.

[0046] Specifically, when the difference between the pressure value at the first pressure gauge 11d and the pressure value at the second pressure gauge 12d exceeds the preset range, it indicates that the inflow of the battery crushing material solution in the mixing chamber exceeds the standard, and the first solenoid valve is closed at this time to reduce the inflow of the battery crushing material solution; on the contrary, when the difference between the pressure value at the first pressure gauge 11d and the pressure value at the second pressure gauge 12d is less than the preset range, it indicates the inflow of the extractant in the mixing chamber, and the second solenoid valve is closed at this time to reduce the inflow of the extractant until the difference between the pressure value at the first pressure gauge 11d and the pressure value at the second pressure gauge 12d is within the set range. The above-mentioned tower phase separation extraction device 100 can effectively adjust the mixing ratio of the extractant and the battery crushing material solution in the mixing chamber. It should be noted that the preset range of the difference between the pressure value at the first pressure gauge 11d and the pressure value at the second pressure gauge 12d can be obtained after repeated experiments, and the present disclosure does not limit the preset range of the difference between the pressure value at the first pressure gauge 11d and the pressure value at the second pressure gauge 12d.

[0047] In one embodiment, the electrical connection can be a wireless connection or a wired connection. Specifically, the wireless connection can use Bluetooth connection, wifi (mobile hotspot) connection, etc., and the wired connection can use wires, circuit boards, and other connection methods. Specifically, the first partition 11a is provided with a first wire hole 101d, and the wire can connect the first solenoid valve and the first control module through the first wire hole 101d. The second partition 12a is provided with a second wire hole 102d, and the wire can connect the second solenoid valve and the second control module through the second wire hole 102d. Of course, this is only an example and is not a limitation of this embodiment.

[0048] Combination Figure 2 As shown, in one embodiment, a transparent observation tube 130 is further provided on the outer side of the tank body 110, and the transparent observation tube 130 includes an observation main pipe 1310, an upper branch pipe 1320, a middle branch pipe 1330 and a lower branch pipe 1340. One end of the observation main pipe 1310 is connected to the top end of the phase-splitting side cavity 1130 through the upper branch pipe 1320, the other end of the observation main pipe 1310 is connected to the bottom end of the phase-splitting side cavity 1130 through the lower branch pipe 1340, and the middle part of the observation main pipe 1310 is connected to the middle part of the phase-splitting side cavity 1130 through the middle branch pipe 1330. It can be understood that one end of the observation main pipe 1310 is connected to the top end of the phase-separation side chamber 1130, the other end of the observation main pipe 1310 is connected to the bottom end of the phase-separation side chamber 1130, and the middle part of the observation main pipe 1310 is connected to the middle part of the phase-separation side chamber 1130, so that the user can observe the boundary between the extract and the original solvent at both ends and the middle part of the phase-separation side chamber 1130 through the observation main pipe 1310, and the extraction effect can be directly known according to the boundary between the extract and the original solvent, without disassembling the device, which is more convenient to use.

[0049] The present disclosure also provides a waste battery recycling device including a tower phase separation extraction device 100 of any of the above embodiments. It can be understood that by applying the tower phase separation extraction device 100 of the present disclosure to the waste battery recycling device, the mixing rate and mixing effect of the battery crushing material solution and the extractant can be accelerated by stirring the battery crushing material solution and the extractant through the stirrer 120. At the same time, the boundary between the extract and the original solvent is clear, which ultimately facilitates the subsequent liquid separation operation and improves the extraction purity of the extractant for metal elements.

[0050] In one embodiment, for better understanding, the use process of the tower phase separation extraction device 100 is described as follows:

[0051] Combination Figure 2 As shown, before use, the battery crushing material solution enters from the heavy phase inlet pipe 1121 at the top end of the mixed-phase side chamber 1120, and the extractant enters from the light phase inlet pipe 1122 at the bottom end of the mixed-phase side chamber 1120. The battery crushing material solution sinks due to gravity and the extractant floats. The battery crushing material solution and the extractant are mixed in the agitator 120. The agitator 120 fully stirs the battery crushing material solution and the extractant to form a battery crushing material-extractant stirring liquid. The battery crushing material-extractant stirring liquid enters into the phase-separation side chamber 1130 through the stirring liquid outlet 1230. After a long period of standing in the phase-separation side chamber 1130, the extractant carries the metal elements and separates from the battery crushing material-extractant stirring liquid to form the original solvent and the extractant, respectively. The original solvent and the extract with lower density float on the top of the tube body and are discharged from the light phase outlet pipe 1131, while the original solvent and the extract with higher density sink to the top of the tube body and are discharged from the heavy phase outlet pipe 1132, thereby achieving rapid liquid separation operation.

[0052] Compared with the prior art, the present invention has at least the following advantages:

[0053] 1) By arranging a longitudinal partition 1110 in the inner cavity of the tank body 110, the inner cavity of the tank body 110 is divided into a mixed phase side cavity 1120 and a phase separation side cavity 1130, so that the mixed phase side cavity 1120 and the phase separation side cavity 1130 are arranged in parallel. Compared with the traditional stacked extraction tower, the height is smaller, the occupation area is small, and the center of gravity is lower, which makes it more stable.

[0054] 2) The battery crushing material solution enters from the heavy phase inlet pipe 1121, and the extractant enters from the light phase inlet pipe 1122. Because the heavy phase inlet pipe 1121 is connected to the top part of the mixed phase side chamber 1120, the agitator 120 is placed horizontally in the middle part of the mixed phase side chamber 1120, and the light phase inlet pipe 1122 is connected to the bottom part of the mixed phase side chamber 1120, and the battery crushing material solution contains metal elements with high density, it will sink under the action of gravity and the extractant will float, because the agitator 120 opens an upper inlet 1210 toward the top part of the mixed phase side chamber 1120, and the agitator 120 opens a lower inlet 1220 toward the bottom part of the mixed phase side chamber 1120, so that the battery crushing material solution can be mixed with the extractant in the agitator 120, and the agitator 120 stirs the battery crushing material solution and the extractant, which can accelerate the mixing rate and mixing effect of the battery crushing material solution and the extractant.

[0055] 3) By opening the stirring liquid outlet 1230 of the stirrer 120 toward the phase-separation side chamber 1130, the fully mixed battery crushing material-extracting agent stirring liquid can enter the phase-separation side chamber 1130 through the stirring liquid outlet 1230. After the battery crushing material-extracting agent stirring liquid has been standing for a long time, the extracting agent will carry the metal elements and separate them from the battery crushing material-extracting agent stirring liquid. The phase-separation side chamber 1130 is consistent with the height of the tank body 110, and the light phase outlet pipe 1131 is connected to the top end of the phase-separation side chamber 1130, and the heavy phase outlet pipe 1132 is connected to the bottom end of the phase-separation side chamber 1130, so that there is a sufficient distance between the light phase outlet pipe 1131 and the heavy phase outlet pipe 1132, which can provide sufficient phase separation distance and time for the battery crushing material-extracting agent stirring liquid, thereby making the boundary between the extracting liquid and the original solvent clear, and finally facilitating the subsequent liquid separation operation and improving the extraction purity of the extracting agent for the metal elements.

[0056] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A tower phase separation extraction device (100), characterized in that: include: A tank body (110), wherein the inner cavity of the tank body (110) is provided with a longitudinal partition (1110), and the longitudinal partition (1110) divides the inner cavity of the tank body (110) into a mixed-phase side cavity (1120) and a split-phase side cavity (1130); a heavy-phase inlet pipe (1121), a light-phase inlet pipe (1122), a light-phase outlet pipe (1131), and a heavy-phase outlet pipe (1132) are provided on the outer side of the tank body (110), wherein the heavy-phase inlet pipe (1121) is connected to the top end of the mixed-phase side cavity (1120), the light-phase inlet pipe (1122) is connected to the bottom end of the mixed-phase side cavity (1120), the light-phase outlet pipe (1131) is connected to the top end of the split-phase side cavity (1130), and the heavy-phase outlet pipe (1132) is connected to the bottom end of the split-phase side cavity (1130); The agitator (120) is disposed horizontally in the middle of the mixed-phase side chamber (1120), and the two ends of the agitator (120) are respectively embedded in the longitudinal partition (1110) and the cavity wall of the mixed-phase side chamber (1120); the agitator (120) is provided with an upper inlet (1210) at the top end of the mixed-phase side chamber (1120), the agitator (120) is provided with a lower inlet (1220) at the bottom end of the mixed-phase side chamber (1120), and the agitator (120) is provided with a stirring liquid outlet (1230) toward the phase-separation side chamber (1130), and the stirring liquid outlet (1230) is connected to the phase-separation side chamber (1130).

2. The tower phase separation extraction device (100) according to claim 1, characterized in that: The stirrer (120) comprises a cylinder (121), a driver (122), a rotating shaft (123) and a plurality of paddles (124); The two ends of the cylinder (121) are respectively embedded in the longitudinal partition (1110) and the cavity wall of the mixed-phase side cavity (1120); the upper inlet (1210), the lower inlet (1220) and the stirring liquid outlet (1230) are all opened on the cylinder (121); the driver (122) is arranged on the outside of the cylinder (121); the rotating shaft (123) is built into the cylinder (121); the rotating shaft (123) is connected to the rotating driving end of the driver (122); and a plurality of blades (124) are arranged at intervals along the length direction of the rotating shaft (123).

3. The tower phase separation extraction device (100) according to claim 2, characterized in that: The rotating shaft (123) and the stirring liquid outlet (1230) are axially arranged opposite to each other, the paddle (124) includes a plurality of stirring blades (1241) and a plurality of spiral blades (1242), the upper inlet (1210) and the lower inlet (1220) are arranged close to the stirring blades (1241), and the spiral blades (1242) are arranged close to the stirring liquid outlet (1230).

4. The tower phase separation extraction device (100) according to claim 1, characterized in that: The mixed phase side chamber (1120) is divided into a heavy phase temporary storage chamber (112a), a mixing chamber (112b) and a light phase temporary storage chamber (112c) which are arranged in sequence from top to bottom. The agitator (120) is arranged in the mixing chamber (112b). The heavy phase inlet pipe (1121) is connected to the heavy phase temporary storage chamber (112a). The light phase inlet pipe (1122) is connected to the light phase temporary storage chamber (112c). The mixing chambers (112b) are separated by a first opening and closing structure (111); when the first opening and closing structure (111) is opened, the heavy phase temporary storage chamber (112a) is connected to the mixing chamber (112b); the light phase temporary storage chamber (112c) and the mixing chamber (112b) are separated by a second opening and closing structure (112); when the second opening and closing structure (112) is opened, the light phase temporary storage chamber (112c) is connected to the mixing chamber (112b).

5. The tower phase separation extraction device (100) according to claim 4, characterized in that: The first opening and closing structure (111) comprises a first partition (11a) and a first flow control valve (11b); an upper feed port (11c) is provided on the first partition (11a); the mixing chamber (112b) is connected to the heavy phase temporary storage chamber (112a) through the upper feed port (11c); and the first flow control valve (11b) is arranged at the upper feed port (11c).

6. The tower phase separation extraction device (100) according to claim 5, characterized in that: The first opening and closing structure (111) further comprises a first pressure gauge (11d) and a first control module; the first flow control valve (11b) is a first solenoid valve; the first pressure gauge (11d) is embedded in the cavity wall of the mixing chamber (112b), and the detection end of the first pressure gauge (11d) is arranged opposite to the upper inlet (1210); the control module is electrically connected to the first solenoid valve and the first pressure gauge (11d), respectively.

7. The tower phase separation extraction device (100) according to claim 4, characterized in that: The second opening and closing structure (112) comprises a second partition (12a) and a second flow control valve (12b); a lower feed port (12c) is provided on the second partition (12a); the mixing chamber (112b) is connected to the light phase temporary storage chamber (112c) through the lower feed port (12c); and the flow control valve is arranged at the lower feed port (12c).

8. The tower phase separation extraction device (100) according to claim 7, characterized in that: The second opening and closing structure (112) further comprises a second pressure gauge (12d) and a second control module; the second flow control valve (12b) is a second solenoid valve; the second pressure gauge (12d) is embedded in the cavity wall of the mixing chamber (112b), and the detection end of the second pressure gauge (12d) is arranged opposite to the lower inlet (1220); the control module is electrically connected to the second solenoid valve and the second pressure gauge (12d), respectively.

9. The tower phase separation extraction device (100) according to claim 1, characterized in that: A transparent observation tube (130) is also provided on the outside of the tank body (110), and the transparent observation tube (130) comprises an observation main tube (1310), an upper tube (1320), a middle tube (1330) and a lower tube (1340). One end of the observation main tube (1310) is connected to the top end of the phase-splitting side cavity (1130) through the upper tube (1320), the other end of the observation main tube (1310) is connected to the bottom end of the phase-splitting side cavity (1130) through the lower tube (1340), and the middle part of the observation main tube (1310) is connected to the middle part of the phase-splitting side cavity (1130) through the middle tube (1330).

10. A waste battery recycling device, characterized in that: It comprises the tower phase separation extraction device (100) according to any one of claims 1 to 9.

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