Lime pulping tank
By designing a lime slurry tank with a three-layer circular frame structure and multiple sets of stirring blades, the problems of low efficiency and unstable concentration in manual slurry preparation were solved, achieving efficient stirring and temperature control, and improving the metal recycling efficiency of waste battery treatment.
Patent Information
- Application Number
- CN202520492274.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, artificial pulping is inefficient, the lime slurry concentration is unstable, which affects the metal leaching efficiency and purity of waste battery treatment. In addition, ordinary stirring equipment cannot efficiently disperse lime particles and lacks temperature control devices.
A lime slurry tank was designed, which adopts a three-layer circular frame structure, including an outer frame, a middle frame and an inner frame. It is equipped with a heating control component and multiple sets of stirring blades. The stability is improved by stirring rods and side rods. The stirring blades contact the side walls to prevent sticking and can be adjusted in angle to suit different inner diameters.
It achieves efficient mixing and temperature control of lime slurry, maintains stable concentration, improves metal recovery rate and leaching efficiency, and expands the applicability of the equipment.
Smart Images

Figure CN223915186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulping equipment technology, specifically to a lime pulping tank. Background Technology
[0002] The treatment of spent ternary lithium batteries aims to recover valuable metals such as nickel, cobalt, and manganese, achieving resource recycling and reducing environmental pollution. The treatment process typically includes dismantling, crushing, sorting, leaching, and subsequent metal separation and purification steps. In the leaching stage, lime slurry (made from lime pulp) is often used to adjust the pH of the reaction system and promote the dissolution of metal ions. A suitable lime slurry can effectively control the reaction process and improve the metal recovery rate.
[0003] In some small-scale waste battery processing workshops, manual pulping is still practiced. Workers rely on experience to mix lime and water, a method that is inefficient, producing limited batches that are difficult to meet the demands of large-scale waste battery processing. Furthermore, manual operation makes it difficult to precisely control the lime-to-water ratio, leading to large fluctuations in lime slurry concentration. During the leaching process of waste ternary lithium batteries, unstable lime slurry concentration can cause the pH of the reaction system to become uncontrolled, affecting metal leaching efficiency and purity, and reducing overall recycling benefits. Some companies use ordinary mechanical stirring pulping equipment, which is often a simple tank with stirring blades. On the one hand, the design of the stirring blades is often not optimized for the characteristics of lime in waste battery processing, failing to efficiently disperse lime particles and easily causing lime agglomeration, resulting in uneven distribution of effective components in the lime slurry. During the leaching reaction, agglomerated lime cannot fully regulate pH, hindering the dissolution of metal ions, and also lacks temperature control devices to assist in the process. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a lime slurry tank, which can effectively solve the problems in the existing technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This utility model provides a lime slurry tank, including a middle frame, an outer frame and an inner frame disposed on the outer and inner sides of the middle frame, respectively. A mounting bracket is fixed to the top of the outer frame, and the top of the mounting bracket is fixedly connected to a drive motor. The output end of the drive motor is connected to a reducer, and the output end of the reducer is fixedly connected to a stirring assembly. The stirring assembly includes a stirring rod and stirring blades fixed to the outer side of the stirring rod. Multiple sets of side rods are fixedly connected to the outer side of the stirring rod, and vertical rods are fixed between the side rods. Two support plates are fixed to the outer side of the vertical rod and the bottom end of the bottom side rod. A clamping plate is provided in the middle of each set of support plates. A circular hole groove is formed through one side of the clamping plate, and a groove is formed in the middle of the other side. The support plate passes through the circular hole groove via a pin and is fixedly connected to the bottom threaded structure of the pin via a locking nut. Stirring blades are fixed inside the groove, and the stirring blades are fixedly connected to the support plates via bolts.
[0007] Furthermore, at least two sets of stirring blades are fixed to the outer side of the vertical rod, and at least two sets of stirring blades are fixed to the bottom end of the side rod.
[0008] Furthermore, the end cross-section of each set of stirring blades is a triangular structure, and the two sets of stirring blades and stirring rods are arranged in the direction of rotation.
[0009] Furthermore, a heating control component is fixed to the outer side of the middle frame, and one end of the heating control component is fixedly connected to a heating wire, which is located at the bottom of the inner frame.
[0010] Furthermore, the ends of each set of stirring blades are in contact with the side walls on both sides and the bottom side wall of the inner frame.
[0011] Furthermore, the bottom end of the mounting bracket is fixedly connected to the cover plate.
[0012] The technical solution provided by this utility model has the following advantages compared with the known public technology:
[0013] This utility model features a three-layer circular frame structure consisting of an outer frame, a middle frame, and an inner frame. During use, the material inside the inner frame can be heated and kept at a specified stable temperature by a heating control component, facilitating lime slurry preparation.
[0014] In this device, the outer side of the stirring rod is equipped with multiple sets of side rod structures and vertical rod structures. During use, these structures improve structural stability and prevent wobbling. They also enhance the fixation effect of the stirring blades. When fixing the stirring blades, two support plates are used as a set, and the clamping plates are fixedly connected by a pin and a locking nut for secure fastening. Finally, the stirring blades are fixedly connected by bolts. Therefore, during use, the device can: 1) re-stir the material; 2) remove material adhering to the side and bottom side walls by contacting them, reducing cleaning and subsequent problems caused by sticky adhesion; 3) adjust the angle between the stirring blades and the stirring rod support using the pins and locking nuts, and adjust the contact angle with the side and bottom side walls; and 4) be adaptable to inner frame structures with different inner diameters, expanding the device's application range. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the structure of this utility model;
[0018] Figure 3 This is an exploded view of the structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the stirring assembly and the heating control assembly in this utility model. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0021] The present invention will be further described below with reference to the embodiments.
[0022] See attached document Figure 1 -Appendix Figure 4A lime slurry preparation tank includes a middle frame 6, an outer frame 1 and an inner frame 52 disposed on the outer and inner sides of the middle frame 6, respectively. A mounting bracket 2 is fixed to the top of the outer frame 1, and the top of the mounting bracket 2 is fixedly connected to a drive motor 3. The output end of the drive motor 3 is connected to a reducer 31, and the output end of the reducer 31 is fixedly connected to a stirring assembly 5. The stirring assembly 5 includes a stirring rod 51 and stirring blades 53 fixed to the outer side of the stirring rod 51. Multiple sets of side rods 511 are fixedly connected to the outer side of the stirring rod 51, and a series of... The vertical rod 512 has two support plates 513 fixed to its outer side and bottom end of the bottom side rod 511. Each support plate 513 has a clamping plate 516 in the middle. One side of the clamping plate 516 has a through-hole groove, and the middle of the other side has a groove. The support plate 513 passes through the through-hole groove through a pin 514 and is fixedly connected to the bottom thread structure of the pin 514 by a locking nut 515. The stirring blade 53 is fixed in the groove and is fixedly connected to the support plate 513 by bolts.
[0023] At least two sets of stirring blades 53 are fixed to the outer side of the vertical rod 512, and at least two sets of stirring blades 53 are fixed to the bottom end of the side rod 511. The end cross-section of each set of stirring blades 53 is triangular, and the two sets of stirring blades 53 are arranged with the stirring rod 51 in the direction of rotation. The end of each set of stirring blades 53 contacts the side walls on both sides and the bottom side wall of the inner frame 52. In this device, the multiple sets of side rods 511 and the vertical rod 512 structure provided on the outer side of the stirring rod 51 can improve the structural stability and prevent shaking during use. On the other hand, it can expand the fixing effect of the stirring blades 53. When fixed with the stirring blades 53, it is secured by two pieces of... As a set of support plate 513 structure, clamp plate 516 is fixedly connected by pin shaft 514 and locking nut 515 to achieve fastening. Finally, stirring blade 53 is fixedly connected by bolt structure. Therefore, in use, firstly, the material can be re-stirred. Secondly, by contacting the side walls and bottom side walls, the material adhering to them can be fully scraped off, reducing cleaning and subsequent problems caused by sticky adhesion. Thirdly, the angle between stirring blade 53 and stirring rod 51 bracket can be adjusted by pin shaft 514 and locking nut 515, and the contact angle with the side walls (bottom side wall) can be adjusted. Fourthly, it can be applied to inner frame 52 structures with different inner diameters, expanding the application range of this device.
[0024] A heating control component 4 is fixed to the outside of the middle frame 6, and one end of the heating control component 4 is fixedly connected to a heating wire 41, which is located at the bottom of the inner frame 52. The bottom of the mounting bracket 2 is fixedly connected to the cover plate. Through the three-layer circular frame structure of the outer frame 1-middle frame 6-inner frame 52, the heating control component 4 can be used to heat and keep the material in the inner frame 52 at a specified stable temperature, which is convenient for lime slurry preparation.
[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A lime slaking tank characterized by, The utility model relates to a kind of stirring device, including middle frame (6), outer frame (1) and inner frame (52) being set to the outside and inside of middle frame (6), the top of the outer frame (1) is fixed with mounting bracket (2), the top of the mounting bracket (2) is fixedly connected with driving motor (3), the output end of the driving motor (3) is drivingly connected with speed reducer (31), the output end of the speed reducer (31) is fixedly connected with stirring assembly (5), the stirring assembly (5) includes stirring rod (51) and stirring blade (53) fixed to the outside of stirring rod (51) in it, the outside of the stirring rod (51) is fixedly connected with multiple groups of side rod (511), side rod (511) is fixed with vertical rod (512) between, the outside of the vertical rod (512) and the bottom end of side rod (511) are both fixed with two as a group of support plate (513), the middle part of each group of support plate (513) is provided with clamping plate (516), one side of the clamping plate (516) is provided with circular hole slot, and the middle part of the other side is provided with groove, and the support plate (513) is fixedly connected with the bottom end screw thread structure of pin shaft (514) by being passed through circular hole slot and by locking nut (515) through pin shaft (514), and stirring blade (53) is fixed in the groove, and stirring blade (53) is fixedly connected with support plate (513) by bolt.
2. A lime slaking tank according to claim 1, wherein, The outside of the vertical rod (512) is fixed with at least two groups of stirring blade (53), and the bottom end of the bottom end of the side rod (511) is fixed with at least two groups of stirring blade (53).
3. A lime slaking tank according to claim 1, wherein, The end section of each group of stirring blade (53) is triangular structure, and two groups of stirring blade (53) are arranged according to the rotation direction between stirring rod (51).
4. A lime slurrying tank according to claim 1, wherein The outside of the middle frame (6) is fixed with heating control assembly (4), and one end of the heating control assembly (4) is fixedly connected with heating wire (41), and the heating wire (41) is arranged at the bottom end of the inner frame (52).
5. A lime slurrying tank according to claim 4, wherein The end of each group of stirring blade (53) is in contact with the side wall of both sides of the inner frame (52) and the side wall of bottom.
6. A lime slurrying tank according to claim 1, wherein The bottom of the mounting bracket (2) is fixedly connected with cover plate.