A system for preparing a metal salt solution with a sufficient breakage of a caked raw material

Abstract

The utility model discloses a kind of metal salt solution preparation systems of agglomerated raw material crushing fully, including ton bag extruder, and for the material feeding hopper for the material of ton bag extruder crushing is input into dissolving kettle, the hot pure water impact device for being equipped with for the impact crushing of agglomerated material in the material feeding hopper in the material feeding hopper top.The utility model is by additionally adding hot pure water impact device, the agglomerated material still existing in material feeding hopper after ton bag extruder preliminary crushing is secondarily impacted and crushed, using the impact force and temperature softening effect of hot pure water, effectively solve the problem that ton bag extruder is not thoroughly crushed to serious material of board consolidation, center area material residue large piece, realize the full and even crushing of material;The preparation system allows to use the agglomerated raw material of lower cost, while improving crushing efficiency and quality stability, realizes cost reduction and efficiency increase.

Description

Technical Field

[0001] This invention belongs to the field of electrode material production technology, and particularly relates to a metal salt solution preparation system. Background Technology

[0002] In the production of ternary precursors, the preparation of metal salt solutions is a critical step. If the raw materials, such as nickel sulfate and cobalt sulfate, agglomerate, it will directly affect the accuracy of feeding and the uniformity of material mixing, thereby impairing key performance indicators of the precursor product, such as compositional consistency and particle size distribution. Therefore, effectively breaking up agglomerated raw materials is a necessary pretreatment measure to ensure a smooth production process and stable product quality.

[0003] Currently, the industry commonly uses ton bag extrusion presses to mechanically crush agglomerated nickel sulfate and cobalt sulfate. This equipment uses a hydraulic system to apply pressure to the entire ton bag containing the material, thereby crushing the agglomerated material inside. This method offers advantages such as high automation, fast processing speed, and high operational efficiency. It significantly reduces manual operation, lowers the risk of dust exposure during material handling, and improves the on-site working environment.

[0004] However, ton bag extruders have significant limitations: firstly, for severely caking materials, the extrusion pressure is difficult to transmit to the interior, resulting in limited crushing effect; secondly, their effect is mainly concentrated on the outside of the ton bag, while the material in the central area often remains in large lumps, failing to meet the particle fineness requirements of subsequent processes. To solve this problem, production lines typically require manual secondary forced crushing using hammers, steel bars, etc., which is labor-intensive, time-consuming, and poses safety hazards. During manual crushing, hard lumps can easily puncture the ton bag, causing material spillage and potentially introducing packaging fragments and other impurities; simultaneously, the presence of caking materials can easily scratch and impact the inner wall of the equipment, leading to wear and tear, peeling of the surface anti-corrosion coating, and ultimately, the contamination of the product by metallic foreign objects. To avoid these problems, some manufacturers choose to purchase more expensive, well-preserved non-caking raw materials, but this directly increases production costs. Therefore, there is an urgent need to develop a metal salt solution preparation system that can fully and uniformly crush caking raw materials, thereby achieving cost reduction and efficiency improvement while ensuring quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide a metal salt solution preparation system for fully and uniformly breaking up agglomerated raw materials.

[0006] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows: A metal salt solution preparation system for fully crushing agglomerated raw materials includes a ton bag extruder and a feeding hopper for feeding the crushed material from the ton bag extruder into a dissolving kettle. A hot pure water impact device is provided above the feeding hopper for impact crushing the agglomerated material in the feeding hopper.

[0007] In the aforementioned metal salt solution preparation system, preferably, the hot pure water impact device includes a first hot pure water supply pipe and a universal loading arm connected to the first hot pure water supply pipe for multi-directional impact on the agglomerated material in the feeding hopper. The universal loading arm is located above the feeding hopper. The universal loading arm can flexibly adjust the impact direction and angle, specifically breaking up stubborn agglomerates in the center that are difficult for ton bag extruders to handle, ensuring that the material is fully and uniformly broken up. At the same time, the hot pure water supplied through the first hot pure water supply pipe not only provides high-pressure physical impact force, but also softens the crystal structure through temperature, forming a physical and thermochemical synergistic crushing mechanism, effectively dealing with severely agglomerated materials.

[0008] In the aforementioned metal salt solution preparation system, preferably, the system further includes a dissolving vessel. The lower end of the dissolving vessel is connected to a circulation pipe that communicates with the universal loading arm. A circulation pump is installed on the circulation pipe to supply the hot solution from the dissolving vessel to the universal loading arm. This configuration allows for the direct use of the existing hot solution in the dissolving vessel for impact crushing without increasing the water volume when the water volume has reached the upper limit of the process requirements, ensuring complete material addition. This significantly reduces additional water and energy consumption, and ensures that the temperature and concentration of the circulating solution are consistent with the solution in the dissolving vessel, avoiding interference with the stability of the dissolution system during the impact process.

[0009] In the aforementioned metal salt solution preparation system, preferably, a first flow-adjustable valve is provided at the connection between the universal loading arm and the first hot pure water supply pipeline, and a second flow-adjustable valve is provided at the connection between the universal loading arm and the circulation pipeline. By setting the first and second flow-adjustable valves at the connections between the universal loading arm and the first hot pure water supply pipeline and the circulation pipeline, precise and flexible control of the impact water source, flow rate, and pressure is achieved. This allows operators to adjust the impact intensity in real time according to the hardness, size, and distribution of the agglomerated material, ensuring uniform and thorough crushing. Simultaneously, valve adjustment supports the independent use or mixed supply of fresh and circulating hot pure water, optimizing the comprehensive utilization of heat and water resources, reducing energy consumption and waste, and significantly improving the system's adaptability to different operating conditions and process controllability.

[0010] In the aforementioned metal salt solution preparation system, preferably, the dissolving vessel is connected to a second hot pure water supply pipeline, and the first and second hot pure water supply pipelines are connected to a total pure water supply pipeline. The total pure water supply pipeline is equipped with a liquid flow meter for monitoring the total amount of water added. This configuration, through the liquid flow meter, achieves precise control of the total amount of hot pure water supplied, ensuring a high degree of consistency in the solid-liquid ratio required for the preparation of the metal salt solution.

[0011] In the aforementioned metal salt solution preparation system, preferably, the feeding hopper is connected to the dissolving vessel via a vertically downward feeding pipe. The vertically downward feeding pipe allows the crushed material to fall rapidly and centrally into the dissolving vessel under gravity. The vertical feeding path facilitates coordinated operation with the upward hot pure water impact device, allowing the water flow to flush the inner wall of the pipe and the material, preventing material from sticking to the wall and causing blockage, while also achieving further cleaning and dispersion.

[0012] In the aforementioned metal salt solution preparation system, preferably, the distance between the universal loading arm's injection port and the material in the feeding hopper is 15-20 cm. This distance ensures that the universal loading arm can achieve optimal impact crushing efficiency on the material in the feeding hopper.

[0013] In the aforementioned metal salt solution preparation system, preferably, an electric hoist is provided above the feeding hopper to transport the material crushed by the ton bag extruder to the feeding hopper. The electric hoist can directly and smoothly lift the material, initially crushed by the ton bag extruder, from the processing station to the feeding hopper, achieving a seamless connection between the crushing and feeding processes.

[0014] Preferably, the above-mentioned metal salt solution preparation system further includes a delivery pump, a security filter, and a precision filter connected sequentially to the discharge end of the dissolving vessel. In this configuration, the dissolved metal salt solution is delivered by the delivery pump to the security filter, which serves as a primary protective barrier, and then undergoes deep and fine filtration through the precision filter to ensure the solution meets process requirements.

[0015] Compared with the prior art, the advantages of this utility model are: This invention incorporates a hot pure water impact device to perform secondary impact crushing on the agglomerated material remaining in the hopper after the initial crushing in a ton bag extruder. Utilizing the impact force and softening effect of hot pure water, it effectively solves the problem of incomplete crushing of severely agglomerated materials and large residual material in the central area in ton bag extruders, achieving thorough and uniform crushing of the material. This design eliminates the need for manual secondary crushing using hammers or steel rods, significantly reducing labor intensity, safety hazards, and processing time. It also avoids the risks of ton bag breakage, material spillage, and impurity introduction caused by manual crushing. This preparation system allows the use of lower-cost agglomerated raw materials, achieving cost reduction and efficiency improvement while enhancing crushing efficiency and quality stability. Attached Figure Description

[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the metal salt solution preparation system for thoroughly broken agglomerated raw materials, as shown in the embodiment; Figure 2 The process flow diagram of the metal salt solution preparation system is shown in the example.

[0018] Legend 1. Ton bag extruder; 2. Dissolving kettle; 21. Second hot pure water supply pipeline; 22. Manual valve; 3. Feeding hopper; 31. Vertical feed pipe; 4. Hot pure water impact device; 41. First hot pure water supply pipeline; 42. Universal loading arm; 43. Circulation pipeline; 44. Circulation pump; 45. First flow adjustable valve; 46. Second flow adjustable valve; 5. Main pure water supply pipeline; 51. Liquid flow meter; 6. Electric hoist; 7. Conveying pump; 8. Security filter; 9. Precision filter. Detailed Implementation

[0019] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0020] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0021] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0022] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0023] Example: like Figure 1 and Figure 2As shown, the metal salt solution preparation system for fully crushed agglomerated raw materials in this embodiment includes a ton bag extruder 1 and a feeding hopper 3 for feeding the material crushed by the ton bag extruder 1 into the dissolving kettle 2. A hot pure water impact device 4 is provided above the feeding hopper 3 for impact crushing the agglomerated material in the feeding hopper 3.

[0024] In this embodiment, the hot pure water impact device 4 includes a first hot pure water supply pipe 41 and a universal loading arm 42 connected to the first hot pure water supply pipe 41 for multi-directional impacting of agglomerated materials in the feeding hopper 3. The universal loading arm 42 is located above the feeding hopper 3.

[0025] In this embodiment, the metal salt solution preparation system also includes a dissolving vessel 2. The lower end of the dissolving vessel 2 is provided with a circulation pipe 43 that communicates with the universal loading arm 42. The circulation pipe 43 is provided with a circulation pump 44 for supplying the hot solution from the dissolving vessel 2 to the universal loading arm 42.

[0026] In this embodiment, a first flow-adjustable valve 45 is provided at the connection between the universal loading arm 42 and the first hot pure water supply pipeline 41, and a second flow-adjustable valve 46 is provided at the connection between the universal loading arm 42 and the circulation pipeline 43.

[0027] In this embodiment, the dissolving vessel 2 is connected to a second hot pure water supply pipe 21, and the first hot pure water supply pipe 41 and the second hot pure water supply pipe 21 are connected to a main pure water supply pipe 5. The main pure water supply pipe 5 is equipped with a liquid flow meter 51 for monitoring the total amount of water added. The second hot pure water supply pipe 21 is equipped with a manual valve 22.

[0028] In this embodiment, the feeding hopper 3 is connected to the dissolving vessel 2 via a vertically downward feeding pipe 31. Specifically, the feeding hopper 3 is located in the feeding station on the second floor, and the dissolving vessel 2 is located on the first floor and below the feeding hopper 3.

[0029] In this embodiment, the distance between the injection port of the universal loading arm 42 and the material in the feeding hopper 3 is 15cm.

[0030] In this embodiment, an electric hoist 6 is provided above the feeding hopper 3 to transport the material crushed by the ton bag extruder 1 to the feeding hopper 3.

[0031] In this embodiment, a delivery pump 7, a security filter 8, and a precision filter 9 are also connected in sequence to the discharge end of the dissolving vessel 2.

[0032] In this embodiment, the specific steps include: Step 1: Coarse Crushing of Materials: The agglomerated nickel sulfate and cobalt sulfate are transported one bag at a time to the extrusion platform of the ton bag extruder 1 according to the feeding sequence. The ton bag extruder 1 is started for coarse crushing of the materials. After extrusion, the materials are transported to the side of the feeding hopper 3; Step 2: Add water to dissolving vessel 2: Set the hot pure water (45±5℃) addition volume to 7m³. 3 Open the manual valve 22 and turn on the liquid flow meter 51. Hot pure water enters the dissolving kettle 2 through the second hot pure water supply pipeline 21 via the automatic control program. Step 3: Turn off the water inlet, turn on the stirrer of dissolving vessel 2, and start the heater of dissolving vessel 2; Step 4: Feeding and Primary Crushing: Start the electric hoist 6 to lift the material above the feeding hopper 3, making the ton bag discharge port level with the hopper. Open the ton bag discharge port, and small pieces of material automatically enter the dissolving kettle 2 through the vertical feed pipe 31 under gravity; Secondary Impact Crushing: Set the hot pure water addition to 8m³. 3 Turn on the liquid flow meter 51. Move the universal loading arm 42, aligning its inlet with the clumped material in the feeding hopper 3, and place it approximately 15cm away from the material. Open the first flow adjustable valve 45 to control the water flow rate. Simultaneously, continuously move and adjust the position and direction of the universal loading arm 42, using hot pure water to impact the material from all directions until all clumps are broken up and enter the dissolving tank 2 through the vertical feed pipe 31. After completion, close the liquid flow meter 51 and the first flow adjustable valve 45.

[0033] Step 5: Replenish crushing in circulating water mode. This step should be performed based on the actual situation. Step 5-1: If all materials have been fed in, and the second 8m setting is complete... 3 If the hot pure water has been added, skip this step.

[0034] Step 5-2: If the water level in the dissolving vessel 2 has reached the upper limit required by the process, but the material has not yet been completely added, there is no need to add more hot pure water. At this time, turn on the circulation pump 44 to pump the hot solution in the dissolving vessel 2 to the universal loading arm 42 through the circulation pipe 43. Control the solution flow rate through the second flow adjustable valve 46, and continuously move the position and direction of the universal loading arm 42 to continuously impact the material until all agglomerated material is broken up and enters the dissolving vessel 2.

[0035] Step 6: Dissolution and Adjustment: Continuously stir the material in dissolving vessel 2 for 4-6 hours. Take samples for testing to determine impurities and the content of nickel, cobalt, and manganese. Based on the test results, add material or water to adjust the solution concentration and metal ratio to the acceptable range.

[0036] Step 7: Filtration and Conveying: Open the security filter 8 and the precision filter 9 in sequence. The qualified metal salt solution, after impurity removal, is conveyed to the downstream production line via the conveying pump 7.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A system for preparing a metal salt solution by thoroughly crushing agglomerated raw materials, comprising a ton bag extruder (1) and a feeding hopper (3) for feeding the crushed material from the ton bag extruder (1) into a dissolving vessel (2), characterized in that, A hot pure water impact device (4) is provided above the feeding hopper (3) for impacting and crushing the agglomerated material in the feeding hopper (3).

2. The metal salt solution preparation system according to claim 1, characterized in that, The hot pure water impact device (4) includes a first hot pure water supply pipe (41) and a universal loading arm (42) connected to the first hot pure water supply pipe (41) for multi-directional impact on the agglomerated material in the feeding hopper (3). The universal loading arm (42) is located above the feeding hopper (3).

3. The metal salt solution preparation system according to claim 2, characterized in that, The metal salt solution preparation system also includes a dissolving vessel (2), the lower end of which is provided with a circulation pipe (43) connected to the universal loading arm (42), and the circulation pipe (43) is provided with a circulation pump (44) for supplying the hot solution of the dissolving vessel (2) to the universal loading arm (42).

4. The metal salt solution preparation system according to claim 3, characterized in that, The universal loading arm (42) is provided with a first flow adjustable valve (45) at the connection between it and the first hot pure water supply pipeline (41), and the universal loading arm (42) is provided with a second flow adjustable valve (46) at the connection between it and the circulation pipeline (43).

5. The metal salt solution preparation system according to claim 3, characterized in that, The dissolving vessel (2) is connected to a second hot pure water supply pipe (21), and the first hot pure water supply pipe (41) and the second hot pure water supply pipe (21) are connected to a total pure water supply pipe (5). The total pure water supply pipe (5) is equipped with a liquid flow meter (51) for monitoring the total amount of water added.

6. The metal salt solution preparation system according to claim 3, characterized in that, The feeding hopper (3) is connected to the dissolving vessel (2) through a vertically downward feeding pipe (31).

7. The metal salt solution preparation system according to claim 2, characterized in that, The distance between the nozzle of the universal loading arm (42) and the material in the feeding hopper (3) is 15-20cm.

8. The metal salt solution preparation system according to any one of claims 1-7, characterized in that, An electric hoist (6) is provided above the feeding hopper (3) to transport the material crushed by the ton bag extruder (1) to the feeding hopper (3).

9. The metal salt solution preparation system according to any one of claims 1-7, characterized in that, It also includes a delivery pump (7), a security filter (8) and a precision filter (9) that are connected in sequence to the discharge end of the dissolving vessel (2).

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