A homogenizer for a laterite nickel ore spiral chute
By designing inner and outer cylinder structures and using spiral tube swirl technology, the problem of laterite nickel ore slurry deposition in the distributor was solved, achieving uniform discharge and improving discharge efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PT ESG NEW ENERGY MATERIAL
- Filing Date
- 2024-10-23
- Publication Date
- 2026-06-30
AI Technical Summary
The existing laterite nickel ore slurry is prone to forming sedimentation zones in the distributor, which leads to the deposition of mineral particles near the discharge port and affects the discharge efficiency.
Design a distributor for a spiral sluice box for laterite nickel ore. It adopts an inner and outer cylinder structure. The slurry passes through the inner cylinder and forms a vortex through the spiral tube to avoid sedimentation. The spiral tube impacts the bottom of the annular chamber to ensure uniform discharge.
It improves discharge efficiency, avoids slurry deposition in the annular chamber, and achieves uniform separation.
Smart Images
Figure CN224423114U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of laterite nickel ore beneficiation technology, specifically to a distributor for a spiral sluice of laterite nickel ore. Background Technology
[0002] Currently, the main types of ore resources available for nickel extraction are nickel sulfide ore and laterite nickel ore. Nickel sulfide ore accounts for approximately 28% of total nickel resources, while laterite nickel ore accounts for about 55%. Nickel sulfide has good hydrophobic properties, and flotation can effectively enrich it, thereby reducing smelting costs. Nickel sulfide ore resources provide approximately 59% of the world's nickel and nickel chemicals, making it the primary source of nickel. Unfortunately, with the continuous decline in the reserves of large-scale nickel sulfide mines and the increasing depth of mining, the difficulty and cost of extraction are constantly rising. Faced with the depletion crisis of nickel sulfide ore resources, people have had to turn their attention to laterite nickel ore, which has abundant nickel reserves.
[0003] CN220460995U discloses a spiral chute buffer tank, which includes a buffer tank body, which is a cylindrical structure closed at one end. An inlet pipe is provided on the side wall of the buffer tank body. Four outlet pipes communicating with the inner cavity of the buffer tank body are evenly distributed along the circumference of the buffer tank body on the outer wall of the buffer tank body from the inlet pipe to the closed end of the buffer tank body. The slurry material is discharged into the cylindrical buffer tank body through the inlet pipe arranged at the top or laterally. The slurry material is finally discharged through the multiple outlet pipes to achieve uniform distribution.
[0004] However, the laterite nickel ore slurry contains a large number of mineral particles. If the feed pipe is tilted or arranged laterally, it will impact one side of the distributor body, while a sedimentation zone will form on the other side. This will cause a large number of mineral particles to slowly accumulate near the discharge port on the side close to the sedimentation zone, while other discharge ports will increase the discharge, resulting in slurry overflow, which will affect the discharge efficiency of the discharge port. Summary of the Invention
[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a distributor for a spiral sluice of laterite nickel ore. This solves the technical problem that in the prior art, a sedimentation zone is formed inside the distributor, which causes a large amount of mineral particles to slowly accumulate near the discharge port on the side close to the sedimentation zone, while the discharge of other discharge ports increases, affecting the discharge efficiency of the discharge port.
[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical application:
[0007] This application provides a distributor for a spiral sluice box for laterite nickel ore, comprising: an outer cylinder, an inner cylinder, a plurality of spiral tubes, and a plurality of slurry discharge pipes. The inner cylinder is disposed inside the outer cylinder and is connected to the slurry inlet pipe. An annular cavity is formed between the outer wall of the outer cylinder and the inner wall of the inner cylinder. The plurality of spiral tubes are evenly arranged around the periphery of the inner cylinder and are all located within the annular cavity. One end of each spiral tube is connected to the interior of the inner cylinder, and the other end is spirally inclined downwards, so that the slurry can form a swirling flow within the annular cavity after being discharged through the spiral tubes. The plurality of slurry discharge pipes are evenly arranged around the periphery of the outer cylinder and are all connected to the annular cavity.
[0008] The slurry is fed into the inner cylinder through the slurry feed pipe and then evenly discharged through multiple spiral pipes inside the inner cylinder. It then forms a swirling flow in the annular chamber, which simultaneously impacts the bottom of the annular chamber. Finally, the slurry in the annular chamber is evenly discharged through multiple slurry discharge pipes and transported to the secondary distributor and spiral chute, respectively.
[0009] In some embodiments, the connection surface between the bottom of the inner wall of the outer cylinder and its inner bottom surface is set as an arc-shaped surface, so that the inner sidewall of the outer cylinder and the inner bottom wall are connected by an arc transition. The slurry discharge pipe is connected to the arc-shaped surface and is arranged inclined along the spiral direction of the spiral tube.
[0010] In some embodiments, the outer cylinder has a conical structure, with its inner diameter gradually decreasing from top to bottom. The inner cylinder is arranged coaxially with the outer cylinder.
[0011] In some embodiments, the bottom of the inner cylinder is higher than the bottom of the outer cylinder. Therefore, a platform is provided at the bottom of the inner cylinder to elevate it. The top and bottom ends of the platform are connected to the inner cylinder and the outer cylinder, respectively. The outer diameter of the platform is equal to the outer diameter of the inner cylinder, and the outer side of the platform is abutted to the outer side of the inner cylinder.
[0012] In some embodiments, the slurry feed pipe is disposed at the top of the inner cylinder, with one end connected to the top of the inner cylinder. The feed end of the slurry feed pipe corresponds to the bottom surface of the inner wall of the inner cylinder, so that the impact force generated by the feed will act directly on the bottom of the inner cylinder to prevent the slurry from settling on one side of the inner cylinder.
[0013] In some embodiments, the number of slurry discharge pipes is equal to the number of spiral pipes. The number of spiral pipes and slurry discharge pipes is 6-10.
[0014] Compared with existing technologies, the equalizer for laterite nickel ore spiral sluice provided in this application, through the setting of an outer cylinder, an inner cylinder, several spiral tubes, and several slurry discharge pipes, and by designing the equalization tank in the form of inner and outer cylinders, allows the slurry to be evenly distributed to first enter the inner cylinder. Due to the small inner diameter of the inner cylinder, the impact of the slurry feeding is directed at the bottom of the entire inner cylinder, thus preventing sedimentation inside the inner cylinder. The discharge from the inner cylinder uses multiple spiral tubes spiraling downwards. The discharge from the spiral tubes impacts the bottom of the annular cavity formed between the inner and outer cylinders, preventing slurry sedimentation in the annular cavity. At the same time, it also causes the slurry discharged through the spiral tubes to form a swirling flow in the annular cavity, thereby enhancing the fluidity of the slurry in the annular cavity and further preventing slurry sedimentation in the annular cavity. This allows each slurry discharge pipe to discharge evenly, which is beneficial to improving the discharge efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the distributor for the spiral chute of laterite nickel ore provided in the embodiments of this application;
[0016] Figure 2 This is a schematic diagram of the overall main view cross-sectional structure of the distributor for the spiral chute of laterite nickel ore provided in the embodiments of this application;
[0017] Figure 3 This is a top view schematic diagram of the overall structure of the distributor for the spiral chute of laterite nickel ore provided in the embodiments of this application;
[0018] Figure 4 This is a schematic diagram of the overall main view structure of the distributor for the spiral chute of laterite nickel ore provided in the embodiments of this application;
[0019] Figure 5 This is a top-view three-dimensional structural diagram of the distributor for the spiral chute of laterite nickel ore provided in the embodiments of this application;
[0020] Figure 6 This is a three-dimensional structural diagram of the inner cylinder of the distributor for the spiral chute of laterite nickel ore provided in this application embodiment.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Outer cylinder; 11. Annular chamber; 12. Arc-shaped surface; 2. Inner cylinder; 3. Spiral tube; 4. Slurry discharge pipe; 5. Slurry feed pipe; 6. Pad platform. Detailed Implementation
[0023] To make the objectives, technical claims, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0024] When laterite nickel ore slurry is fed into a distributor, the existing feed pipes are inclined or arranged laterally, causing the slurry to impact one side of the distributor body. This causes the slurry to move to the other side, where it is suddenly slowed down due to obstruction. Particles in the slurry are deposited under inertia, forming a blockage and slowing down the discharge from that side. Conversely, the discharge from the other side is faster, impacting the spiral chute and ultimately hindering its distribution function, thus affecting the discharge efficiency. To solve the above technical problems, this application provides a distributor for a laterite nickel ore spiral chute. The distributor tank is designed as an inner and outer cylinder. The impact of the slurry feed targets the entire bottom of the inner cylinder, preventing deposition inside. The discharge from the spiral pipe impacts the bottom of the annular chamber formed between the inner and outer cylinders, causing the slurry to swirl within the annular chamber, thus preventing slurry deposition and improving discharge efficiency.
[0025] It should be noted that the distributor for laterite nickel ore spiral chute described in this application is used for, but not limited to, slurry processing. For ease of explanation, this application only uses the application of the distributor for laterite nickel ore spiral chute in slurry processing as an example. The principle of the distributor for laterite nickel ore spiral chute in other types of material processing is essentially the same as that in slurry processing, and will not be elaborated here.
[0026] Please see Figures 1 to 6 The distributor for the spiral sluice of laterite nickel ore includes: an outer cylinder 1, an inner cylinder 2, several spiral tubes 3, and several slurry discharge pipes 4. The inner cylinder 2 is located inside the outer cylinder 1 and is connected to the slurry inlet pipe 5. An annular chamber 11 is formed between the outer wall of the outer cylinder 1 and the inner wall of the inner cylinder 2. Several spiral tubes 3 are evenly arranged around the inner cylinder 2 and are all located within the annular chamber 11. One end of each spiral tube 3 is connected to the interior of the inner cylinder 2, and the other end is spirally inclined downwards, so that the slurry can form a swirling flow in the annular chamber 11 after being discharged through the spiral tubes 3. Several slurry discharge pipes 4 are evenly arranged around the outer cylinder 1 and are all connected to the annular chamber 11.
[0027] In this device, an inner cylinder 2 is installed inside the outer cylinder 1, forming an annular chamber 11 inside the outer cylinder 1. During implementation, the slurry is fed into the inner cylinder 2 through the slurry feed pipe 5. The inner cylinder 2 and the annular chamber 11 are connected by a spiral pipe 3, and the discharge end of the spiral pipe 3 is inclined downwards. After the slurry is evenly discharged inside the inner cylinder 2 through multiple spiral pipes 3, it will form a vortex in the annular chamber 11, which can enhance the fluidity of the slurry in the annular chamber 11. The slurry in the vortex state is not easy to settle. At the same time, the downward spiral discharge of the spiral pipe 3 can impact the bottom of the annular chamber 11, thereby avoiding the deposition of slurry in the annular chamber 11. Finally, the slurry in the annular chamber 11 is evenly discharged through multiple slurry discharge pipes 4 and transported to the secondary distributor and spiral chute for uniform separation.
[0028] To prevent slurry from depositing at the junction of the side wall and bottom wall of the outer cylinder 1, in this embodiment, please refer to... Figure 2 The bottom of the inner wall of the outer cylinder 1 is connected to its inner wall bottom surface by an arc transition, that is, the connection surface between the two is an arc-shaped surface 12. This facilitates the flow of slurry at the arc-shaped connection point under the impact generated when the slurry is discharged, and prevents it from depositing at the connection point between the bottom of the inner wall of the outer cylinder 1 and the inner wall bottom surface of the outer cylinder 1. At the same time, the outer cylinder 1 is designed as a conical structure with its inner diameter gradually decreasing from top to bottom. Through the cooperation of the conical outer cylinder 1, the arc-shaped surface 12 and the spiral tube 3, the impact on the annular chamber 11 can be further increased, reducing the probability of deposition.
[0029] To facilitate material discharge from the annular chamber 11, please refer to the following embodiment: Figure 3 The slurry discharge pipe 4 is connected to the arc-shaped surface 12 and is arranged at an inclination along the spiral direction of the spiral pipe 3, so that the slurry in the swirling state can flow into each slurry discharge pipe 4 and be discharged through the slurry discharge pipe 4, so as to ensure that there is no turbulence during discharge.
[0030] Preferably, the inclination angle α of the slurry discharge pipe 4 is: 0°<α≤45°.
[0031] Furthermore, the lowest point of the spiral tube 3 near the inner end of the inner cylinder 2 is on the same horizontal plane as the bottom of the inner wall of the inner cylinder 2, and the slurry discharge pipe 4 is also located at the bottom of the outer cylinder 1, so that all the slurry in the distributor can be discharged.
[0032] In this embodiment, please refer to Figure 1 The inner cylinder 2 is coaxially arranged with the outer cylinder 1, and the bottom of the inner cylinder 2 is higher than the bottom of the outer cylinder 1. The spiral tube 3 can be installed at a downward angle to facilitate the spiral tube 3 to discharge material and form a downward spiral impact force.
[0033] Since the bottom of the inner cylinder 2 is higher than the bottom of the outer cylinder 1, in order to facilitate the positioning and installation of the inner cylinder 2, further, in some embodiments, please refer to... Figures 1 to 3 A base 6 is provided at the bottom of the inner cylinder 2. The top and bottom ends of the base 6 are fixedly connected to the bottom of the inner cylinder 2 and the bottom of the inner wall of the outer cylinder 1, respectively. The base 6 can be fixed to the inner cylinder 2 and the outer cylinder 1 by a sealed connection method such as welding. The base 6 elevates the inner cylinder 2, allowing it to be positioned in the height direction. When installing the inner cylinder 2, the base 6 can be fixed to the bottom of the inner cylinder 2 first, and then the base 6 and the inner cylinder 2 can be placed inside the outer cylinder 1 for fixed installation; alternatively, the base 6 can be fixed inside the outer cylinder 1 first, using the base 6 to position the inner cylinder 2, and then the inner cylinder 2 can be fixedly installed on the base 6.
[0034] Preferably, the outer diameter of the pad 6 is equal to the outer diameter of the inner cylinder 2, and the pad 6 and the inner cylinder 2 are coaxially and fixedly connected together, so that the outer side of the pad 6 is connected to the outer side of the inner cylinder 2, and no slurry will remain at the bottom of the inner cylinder 2 during implementation.
[0035] Because an inner cylinder 2 is added inside the outer cylinder 1, and the inner diameter of the inner cylinder 2 is small, regardless of whether the slurry feed pipe 5 is arranged inclined, horizontally, or vertically, the impact of the slurry feed will be directed at the entire bottom of the inner cylinder 2, thus preventing sedimentation inside the inner cylinder 2. To improve the anti-deposition effect, in this embodiment, please refer to... Figure 2 The slurry feed pipe 5 is centrally located at the top of the inner cylinder 2, with one end connected to the top of the inner cylinder 2. The feed end of the slurry feed pipe 5 corresponds to the bottom surface of the inner wall of the inner cylinder 2 to ensure that its feed impact is fully applied to the bottom of the inner cylinder 2.
[0036] It is understood that in other embodiments, the slurry feed pipe 5 may also be arranged at an angle or laterally, in which case the slurry feed pipe 5 is connected to the side wall of the inner cylinder 2 to achieve communication between the two.
[0037] Preferably, in this embodiment, please refer to Figures 3 to 6 The number of slurry discharge pipes 4 is equal to the number of spiral pipes 3, and the inner diameter of the slurry discharge pipe 4 is less than or equal to the inner diameter of the spiral pipe 3. The number of spiral pipes 3 and slurry discharge pipes 4 is set to 6-10, so that multiple spiral pipes 3 can share the discharge from the inner cylinder 2. During discharge, a swirling flow is formed within the annular chamber 11, and the slurry within the annular chamber 11 can be discharged through the slurry discharge pipes 4, flowing towards the secondary distributor and the spiral chute.
[0038] Furthermore, from a top-down perspective, the length of the spiral tube 3 is one-third of the full circle of the spiral, ensuring that the slurry can form a swirling flow and generate a downward impact as it passes through the spiral tube 3, and also reducing the cost of the equipment.
[0039] Working principle: The slurry is fed into the inner cylinder 2 through the slurry feed pipe 5. The inner cylinder 2 and the annular chamber 11 are connected by a spiral pipe 3. After the slurry is evenly discharged from the inner cylinder 2 through multiple spiral pipes 3, it will form a vortex in the annular chamber 11 to enhance the fluidity of the slurry in the annular chamber 11. At the same time, the spiral pipe 3 can impact the bottom of the annular chamber 11 by spiraling downward, thereby avoiding the deposition of slurry in the annular chamber 11. Finally, the slurry in the annular chamber 11 is evenly discharged through multiple slurry discharge pipes 4 and transported to the secondary distributor and spiral chute for uniform separation.
[0040] This application, through the design of an outer cylinder 1, an inner cylinder 2, several spiral tubes 3, and several slurry discharge pipes 4, utilizes an equalization tank in the form of inner and outer cylinders. The slurry requiring equalization first enters the inner cylinder 2. Due to the smaller inner diameter of the inner cylinder 2, the impact of the slurry feed is directed at the entire bottom of the inner cylinder 2, preventing sedimentation inside. The discharge from the inner cylinder 2 employs multiple downward spiral tubes 3. The discharge from the spiral tubes 3 impacts the bottom of the annular chamber 11 formed between the inner and outer cylinders 1, preventing slurry sedimentation within the annular chamber 11. Simultaneously, the slurry discharged through the spiral tubes 3 forms a swirling flow within the annular chamber 11, enhancing its fluidity and further preventing sedimentation. This ensures uniform discharge from each slurry discharge pipe 4, guaranteeing even ore distribution by the equalizer and improving discharge efficiency.
[0041] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0042] It should be noted that 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 limitation, 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.
[0043] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.
Claims
1. A distributor for a nickel laterite spiral, characterized in that, include: outer cylinder; An inner cylinder is disposed inside the outer cylinder and is connected to the slurry feed pipe. An annular cavity is formed between the outer wall of the outer cylinder and the inner wall of the inner cylinder. Several spiral tubes are evenly arranged around the inner cylinder and are all located in the annular cavity. One end of each spiral tube is connected to the inside of the inner cylinder, and the other end is spirally inclined downward, so that the slurry can form a vortex in the annular cavity after being discharged through the spiral tube. as well as, Several slurry discharge pipes are evenly arranged around the periphery of the outer cylinder and are all connected to the annular chamber.
2. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, The connection surface between the bottom of the inner wall of the outer cylinder and the bottom surface of the inner wall is set as an arc-shaped surface.
3. The distributor for the spiral sluice box of laterite nickel ore according to claim 2, characterized in that, The slurry discharge pipe is connected to the arc-shaped surface and is arranged at an angle along the spiral direction of the spiral pipe.
4. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, The outer cylinder has a conical structure, and its inner diameter gradually decreases from top to bottom.
5. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, The inner cylinder and the outer cylinder are arranged coaxially, and the bottom of the inner cylinder is higher than the bottom of the outer cylinder.
6. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, A platform is provided at the bottom of the inner cylinder, and the top and bottom of the platform are respectively connected to the inner cylinder and the outer cylinder.
7. The distributor for the spiral sluice box of laterite nickel ore according to claim 6, characterized in that, The outer diameter of the pad is equal to the outer diameter of the inner cylinder, and the outer side of the pad is connected to the outer side of the inner cylinder.
8. The distributor for the spiral chute of laterite nickel ore according to claim 1, characterized in that, The slurry feed pipe is located at the top of the inner cylinder, with one end connected to the top of the inner cylinder, and the feed end of the slurry feed pipe corresponding to the bottom surface of the inner wall of the inner cylinder.
9. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, The number of slurry discharge pipes is equal to the number of spiral pipes.
10. The distributor for the spiral sluice box of laterite nickel ore according to claim 1, characterized in that, The spiral tubes are provided in 6-10 units.