A kind of slurry filter press device for lithium battery waste liquid treatment

Abstract

The utility model relates to lithium battery waste liquid processing technical field, and disclose a kind of for lithium battery waste liquid processing's chemical pulp pressure filter device, including processing cauldron body, the processing cauldron body top is fixedly connected with feed hopper, the processing cauldron body left and right sides are fixedly connected with supporting leg, chemical pulp mechanism is provided in the processing cauldron body, outlet mechanism is provided to the processing cauldron body outside, the chemical pulp mechanism includes agitating component and reinforcing component, the agitating component is set in the processing cauldron body left and right sides, the reinforcing component is set to the outer ring of agitating component. The chemical pulp pressure filter device for lithium battery waste liquid processing, by setting the chemical pulp mechanism, the turbulence degree of solution in processing cauldron body is significantly enhanced, reduces mixing dead angle, so that the solution of different regions is more fully mixed, improves the effect that the device uses to the slurry of lithium battery waste material in processing cauldron solution.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery waste liquid treatment technology, specifically a slurry pressing and filtration device for treating lithium battery waste liquid. Background Technology

[0002] Lithium battery wastewater mainly originates from production cleaning and battery dismantling processes. It contains heavy metals (cobalt, nickel, lithium, etc.), organic electrolytes (such as lithium hexafluorophosphate), and small amounts of impurities. Direct discharge would pollute water and soil and harm the ecosystem. Slurry filtration is a commonly used solid-liquid separation technology used to effectively separate and treat liquid and solid substances. In the slurry filtration process, the mixture to be treated is first mixed with a specific solidifying agent and stirred evenly to form a paste-like substance, also known as slurry.

[0003] Existing slurry and filter press devices have several significant drawbacks in treating lithium battery waste liquid. During the slurrying process, the stirring components often suffer from insufficient mixing of the solution inside the vessel due to their unidirectional rotation or inadequate structural design. This leads to dead zones in the stirring, preventing some waste liquid and materials from fully contacting and reacting, resulting in poor slurrying and affecting subsequent processing efficiency. In the filtration and discharge stage, there is a lack of effective impurity interception structures. Large particles of unslurried impurities can easily enter the discharge pipe with the solution, interfering with subsequent processing and reducing the quality of treatment. At the same time, cleaning the solid impurities remaining inside the equipment is very inconvenient, often requiring the disassembly of multiple components to clean the inside of the vessel. This operation is cumbersome and time-consuming, increasing the labor intensity of workers and the equipment maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a slurry pressing and filtration device for treating lithium battery waste liquid, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slurry pressing and filtration device for treating lithium battery waste liquid, comprising a processing vessel, a feed hopper fixedly connected to the top of the processing vessel, support legs fixedly connected to the left and right sides of the processing vessel, a slurry mechanism disposed inside the processing vessel, and a liquid discharge mechanism disposed outside the processing vessel.

[0006] The pulping mechanism includes an agitation component and a reinforcement component. The agitation component is located inside the left and right sides of the processing vessel, and the reinforcement component is located on the outer ring of the agitation component.

[0007] The liquid discharge mechanism includes a filter residue assembly and a cleaning assembly. The filter residue assembly is located on the left and right sides of the processing vessel, and the cleaning assembly is located on the front side of the processing vessel.

[0008] Preferably, the agitation assembly includes a servo motor, which is fixedly connected to the left and right sides of the processing vessel. A drive shaft is fixedly connected to the inner side of the servo motor. The drive shaft is rotatably connected to the left and right sides of the processing vessel. A stirring blade is fixedly connected to the outer ring of the drive shaft. A protruding rod is fixedly connected to the inner side of the drive shaft. A connecting drum is rotatably connected to the outer ring of the protruding rod.

[0009] Preferably, the left and right sides of the stirring blades are tilted at opposite angles.

[0010] Preferably, the reinforcing component includes a fixing plate, which is fixedly connected to the outer ring of the drive shaft located outside the stirring blade. A rotating ring is fixedly connected to the outer side of the fixing plate, and a collar is rotatably connected to the outer ring of the rotating ring. A connecting rod is fixedly connected to the inner side of the collar, and a fixing arm is fixedly connected to the outer ring of the connecting rod. The fixing arm is fixedly connected to the inner ring of the processing vessel.

[0011] Preferably, the filter residue assembly includes a filter screen, which is fixedly connected to the bottom of the left and right sides of the processing vessel. A liquid outlet pipe is provided on the outside of the filter screen, and the liquid outlet pipe is fixedly connected to the left and right sides of the processing vessel.

[0012] Preferably, the cleaning component includes a cleaning window, which is located on the front side of the processing vessel. A closed arc plate is provided on the front side of the cleaning window. The closed arc plate is slidably connected to the outer ring of the processing vessel. A handle is fixedly connected to the front side of the closed arc plate. Slide rails are slidably connected to the left and right sides of the closed arc plate. The slide rails are fixedly connected to the front side of the processing vessel.

[0013] Compared with the prior art, this utility model provides a slurry dewatering device for treating lithium battery waste liquid, which has the following beneficial effects: 1. This slurry and filter press device for lithium battery waste liquid treatment utilizes a slurry mechanism where counter-rotating agitators on both sides of the processing vessel cause the solution within the vessel to rotate in the opposite direction. Its core principle is the momentum transfer and viscous force between the agitators and the liquid. When the agitators rotate, their surfaces cause the contacting liquid to rotate along with them through viscous force (i.e., the "dragging effect" of the slurry and filter press device for lithium battery waste liquid treatment). Because the agitators rotate in opposite directions, the liquids they drive gain momentum in opposite directions, thus forming liquid flow fields with opposite rotation directions on both sides. This counter-rotation creates a significant velocity gradient inside the processing vessel, causing the solutions on both sides to impact and shear each other at the interface. This overcomes the limitations of the "overall circulation" that might occur with unidirectional rotation, significantly enhancing the turbulence of the solution within the processing vessel, reducing dead zones, and allowing for more thorough mixing of solutions in different areas. This improves the slurrying effect of the device on the lithium battery waste in the processing vessel solution.

[0014] 2. This slurry pressing and filtration device for treating lithium battery waste liquid has a liquid outlet mechanism. A filter screen is installed at the connection between the liquid outlet pipe and the processing vessel to filter the solution entering the liquid outlet pipe, preventing large particles of impurities from passing through the filter screen and entering the liquid outlet pipe. This also prevents solid impurities in the lithium battery waste that cannot be slurried from entering the liquid outlet pipe and participating in subsequent processing. In addition, the operator can pull the handle to control the opening and closing of the closed arc plate to facilitate the cleaning of the remaining solid impurities in the processing vessel, which is convenient for subsequent use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a front view of the present utility model; Figure 2 This is a schematic diagram of the open and closed state of this utility model; Figure 3 This is a front sectional view of the present invention; Figure 4 This is a side sectional view of the present invention; Figure 5 This is a schematic diagram of part of the pulping mechanism; Figure 6 This is a partial structural diagram of the pulping mechanism; Figure 7 This is a schematic diagram of the reinforced component structure.

[0016] In the diagram: 1. Pulping mechanism; 11. Agitator assembly; 1101. Servo motor; 1102. Drive shaft; 1103. Agitator blade; 1104. Protruding rod; 1105. Connecting drum; 12. Reinforcing assembly; 1201. Fixing plate; 1202. Rotary ring; 1203. Collar; 1204. Connecting rod; 1205. Fixing arm; 2. Liquid discharge mechanism; 21. Filter residue assembly; 2101. Filter screen; 2102. Liquid discharge pipe; 22. Cleaning assembly; 2201. Cleaning window; 2202. Closed arc plate; 2203. Handle; 2204. Slide rail; 3. Processing vessel body; 31. Feed hopper; 4. Support leg. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] This utility model provides a technical solution: Example

[0020] Combination Figures 1 to 7 A slurry pressing and filtration device for treating lithium battery waste liquid includes a processing vessel 3, a feed hopper 31 fixedly connected to the top of the processing vessel 3, support legs 4 fixedly connected to the left and right sides of the processing vessel 3, a slurry mechanism 1 inside the processing vessel 3, and a liquid discharge mechanism 2 outside the processing vessel 3.

[0021] The pulping mechanism 1 includes an agitation component 11 and a reinforcing component 12. The agitation component 11 is located inside the left and right sides of the processing vessel body 3, and the reinforcing component 12 is located on the outer ring of the agitation component 11.

[0022] The stirring assembly 11 includes a servo motor 1101, which is fixedly connected to the left and right sides of the processing vessel 3. A drive shaft 1102 is fixedly connected to the inner side of the servo motor 1101. The drive shaft 1102 is rotatably connected to the left and right sides of the processing vessel 3. A stirring blade 1103 is fixedly connected to the outer ring of the drive shaft 1102. A protruding rod 1104 is fixedly connected to the inner side of the drive shaft 1102. A connecting drum 1105 is rotatably connected to the outer ring of the protruding rod 1104. The stirring blades 1103 on the left and right sides are also connected to the stirring blades 1103. With opposite tilt angles, the reinforcing component 12 includes a fixing plate 1201, which is fixedly connected to the outer ring of the drive shaft 1102 located outside the stirring blade 1103. A rotating ring 1202 is fixedly connected to the outer side of the fixing plate 1201, and a collar 1203 is rotatably connected to the outer ring of the rotating ring 1202. A connecting rod 1204 is fixedly connected to the inner side of the collar 1203, and a fixing arm 1205 is fixedly connected to the outer ring of the connecting rod 1204. The fixing arm 1205 is fixedly connected to the inner ring of the processing vessel 3.

[0023] Furthermore, the counter-rotating stirring blades 1103 on both sides of the processing vessel 3 cause the solution inside the processing vessel 3 to rotate in the opposite direction. The core principle is the momentum transfer and viscous force between the stirring blades 1103 and the liquid. When the stirring blades 1103 rotate, their surfaces cause the contacting liquid to rotate with them through viscous force, i.e., the "dragging effect". Because the two stirring blades 1103 rotate in opposite directions, the liquids they drive gain momentum in opposite directions, thus forming liquid flow fields with opposite rotation directions on the left and right sides. This counter-rotation will create a significant velocity gradient inside the processing vessel 3. The solutions on both sides impact and shear each other at the interface, breaking the limitation of "overall circulation" that may be generated by rotation in one direction. This significantly enhances the turbulence of the solution inside the processing vessel 3, reduces dead zones in the stirring, and allows the solutions in different areas to mix more thoroughly. This improves the effect of the device on slurrying lithium battery waste in the solution of the processing vessel 3. Example

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4 Furthermore, based on Embodiment 1, the liquid discharge mechanism 2 includes a filter residue assembly 21 and a cleaning assembly 22. The filter residue assembly 21 is disposed on the left and right sides of the processing vessel body 3, and the cleaning assembly 22 is disposed on the front side of the processing vessel body 3.

[0025] The filter assembly 21 includes a filter screen 2101, which is fixedly connected to the bottom of the left and right sides of the processing vessel 3. A liquid outlet pipe 2102 is provided on the outside of the filter screen 2101, which is fixedly connected to the left and right sides of the processing vessel 3. The cleaning assembly 22 includes a cleaning window 2201, which is opened on the front side of the processing vessel 3. A closed arc plate 2202 is provided on the front side of the cleaning window 2201. The closed arc plate 2202 is slidably connected to the outer ring of the processing vessel 3. A handle 2203 is fixedly connected to the front side of the closed arc plate 2202. Slide rails 2204 are slidably connected to the left and right sides of the closed arc plate 2202, and the slide rails 2204 are fixedly connected to the front side of the processing vessel 3.

[0026] Furthermore, a filter screen 2101 is installed at the connection between the liquid outlet pipe 2102 and the processing vessel 3 to filter the solution entering the liquid outlet pipe 2102, preventing large particles of impurities from passing through the filter screen 2101 and entering the liquid outlet pipe 2102. This also prevents solid impurities in the lithium battery waste that cannot be slurried from entering the liquid outlet pipe 2102 and participating in subsequent processing. In addition, the operator can pull the handle 2203 to control the closing arc plate 2202 to open and close the cleaning window 2201, which facilitates the operator to clean the remaining solid impurities in the processing vessel 3 and facilitates subsequent use.

[0027] In actual operation, when this device is used and it is necessary to process lithium battery waste liquid into a slurry, the staff first puts the waste material into the processing vessel 3 through the feed hopper 31. Then the staff starts the servo motors 1101 on the left and right sides. The servo motors 1101 start and drive the stirring blades 1103 to rotate through the drive shaft 1102. The stirring blades 1103 on the left and right sides rotate in opposite directions. Through the reverse vortex generated in the solution in the processing vessel 3, the waste material in the solution is stirred and slurried. Finally, the slurry solution passes through the filter screen 2101 and enters the outlet pipe 2102 for discharge. Large particles of impurities that cannot be slurryed remain in the processing vessel 3. At this point, the slurry treatment of lithium battery waste liquid is completed. Finally, the staff pulls the handle 2203 upward to move the closed arc plate 2202 upward. The upward movement of the closed arc plate 2202 releases the seal on the cleaning window 2201, at which point the staff can clean the inside of the processing vessel 3 through the cleaning window 2201.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A slurry pressing and filtration device for treating lithium battery waste liquid, comprising a processing vessel (3), characterized in that: The top of the processing vessel (3) is fixedly connected to a feed hopper (31), and the left and right sides of the processing vessel (3) are fixedly connected to support legs (4). The processing vessel (3) is equipped with a slurry-forming mechanism (1) inside, and a liquid-discharging mechanism (2) is equipped on the outside of the processing vessel (3). The pulping mechanism (1) includes an agitation component (11) and a reinforcing component (12). The agitation component (11) is located inside the left and right sides of the processing vessel body (3), and the reinforcing component (12) is located on the outer ring of the agitation component (11). The liquid discharge mechanism (2) includes a filter residue assembly (21) and a cleaning assembly (22). The filter residue assembly (21) is located on the left and right sides of the processing vessel body (3), and the cleaning assembly (22) is located on the front side of the processing vessel body (3).

2. The slurry pressing and filtration device for treating lithium battery waste liquid according to claim 1, characterized in that: The stirring assembly (11) includes a servo motor (1101), which is fixedly connected to the left and right sides of the processing vessel (3). A drive shaft (1102) is fixedly connected to the inside of the servo motor (1101), and the drive shaft (1102) is rotatably connected to the left and right sides of the processing vessel (3).

3. The slurry pressing and filtration device for treating lithium battery waste liquid according to claim 2, characterized in that: The drive shaft (1102) is fixedly connected to the outer ring of the stirring blade (1103), and the inner side of the drive shaft (1102) is fixedly connected to the protruding rod (1104). The outer ring of the protruding rod (1104) is rotatably connected to the connecting drum (1105).

4. The slurry pressing and filtration device for treating lithium battery waste liquid according to claim 3, characterized in that: The left and right sides of the stirring blade (1103) have opposite tilt angles.

5. A slurry pressing and filtration device for treating lithium battery waste liquid according to claim 1, characterized in that: The reinforcement component (12) includes a fixing plate (1201), which is fixedly connected to the outer ring of the drive shaft (1102) located outside the stirring blade (1103). A rotating ring (1202) is fixedly connected to the outer side of the fixing plate (1201), and a collar (1203) is rotatably connected to the outer ring of the rotating ring (1202).

6. A slurry pressing and filtration device for treating lithium battery waste liquid according to claim 5, characterized in that: A connecting rod (1204) is fixedly connected to the inner side of the collar (1203), and a fixing arm (1205) is fixedly connected to the outer ring of the connecting rod (1204). The fixing arm (1205) is fixedly connected to the inner ring of the processing vessel body (3).

7. A slurry pressing and filtration device for treating lithium battery waste liquid according to claim 1, characterized in that: The filter assembly (21) includes a filter screen (2101), which is fixedly connected to the bottom of the left and right sides of the processing vessel (3). A liquid outlet pipe (2102) is provided on the outside of the filter screen (2101), which is fixedly connected to the left and right sides of the processing vessel (3).

8. A slurry pressing and filtration device for treating lithium battery waste liquid according to claim 1, characterized in that: The cleaning component (22) includes a cleaning window (2201), which is located on the front side of the processing vessel (3). A closed arc plate (2202) is provided on the front side of the cleaning window (2201), and the closed arc plate (2202) is slidably connected to the outer ring of the processing vessel (3).

9. A slurry pressing and filtration device for treating lithium battery waste liquid according to claim 8, characterized in that: A handle (2203) is fixedly connected to the front side of the closed arc plate (2202), and slide rails (2204) are slidably connected to the left and right sides of the closed arc plate (2202). The slide rails (2204) are fixedly connected to the front side of the processing vessel body (3).

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