A dividtor for laterite nickel spiral groove
The inner and outer cylinder configuration with spiral tubes and discharge pipes in the laterite nickel spiral chute addresses uneven discharge issues by preventing deposition and improving flow mobility, resulting in efficient and uniform slurry distribution.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- PT ESG NEW ENERGY MATERIAL
- Filing Date
- 2024-10-23
- Publication Date
- 2026-04-23
AI Technical Summary
Existing spiral chutes for laterite nickel ore processing face issues with uneven discharge due to mineral particle deposition near the discharge outlets, leading to reduced efficiency and overflow, particularly when the feed pipe is tilted or transversely arranged.
A divider for the laterite nickel spiral chute is designed with an inner and outer cylinder configuration, featuring spiral tubes and pulp discharge pipes, which directs the slurry to impact the inner cylinder bottom, preventing deposition and enhancing fluidity through annular chambers, ensuring uniform discharge.
The design prevents slurry deposition, maintains flow mobility, and improves discharge efficiency by uniformly distributing the slurry to secondary dividers and chutes, enhancing overall processing performance.
Smart Images

Figure ID2024000044_23042026_PF_FP_ABST
Abstract
Description
[0001] Description
[0002] A DIVIDTOR FOR LATERITE NICKEL SPIRAL GROOVE
[0003] FILED OF DISCLOSURE
[0004] This application relates to the technical field of laterite nickel ore , and speci fically relates to a dividtor for spiral chute of laterite nickel ore .
[0005] BACKGROUND
[0006] Currently, there are two primary categories of ore resources used for extracting nickel metal : nickel sul fide resources and laterite nickel resources . Nickel sul fide resources account for approximately 28 % of total nickel resources , while laterite nickel resources make up about 55% . Nickel sul fide exhibits excellent hydrophobic properties , allowing the flotation method to ef fectively concentrate nickel sul fide , thereby reducing smelting costs . Nickel sul fide mineral resources contribute around 59% of the world ' s nickel and nickel chemicals , making it the most signi ficant source of nickel extraction . Unfortunately, as the availability of large nickel sul fide mines continues to decline , the mining depth increases , leading to greater challenges and costs associated with extraction . In light of the impending depletion of nickel sul fide ore resources , there is a growing need to explore the abundant nickel resources found in laterite nickel ore .
[0007] The open number features a spiral chute buf fer tank for CN220460995U, which includes a buf fer tank body with a closed barrel structure on the side wall . An inlet pipe is located on the outer wall of the main body, leading to the closed end of the buf fer tank . The slurry material is discharged through multiple outlet tubes to ensure even distribution .
[0008] However, the presence of a signi ficant number of mineral particles in laterite nickel slurry can be af fected by the tilt or transverse arrangement of the feed pipe . This configuration impacts one side of the main body, resulting in the formation of a deposit area on the opposite side . Consequently, mineral particles accumulate near the deposit side , while the other outlet experiences increased discharge , leading to overflow and ultimately reducing the ef ficiency of outlet discharge .
[0009] SUMMARY
[0010] The purpose of this application is to address the aforementioned technical deficiencies by proposing an equali zer for the laterite nickel ore spiral chute . This solution aims to resolve issues related to the precipitation area in existing technology, particularly near the discharge outlet and the adj acent deposit area . Additionally, it seeks to enhance the ef ficiency of discharge by managing the flow from other discharge outlets , which can lead to increased discharge and improved overall performance .
[0011] To achieve the aforementioned technical obj ectives , this application utili zes the following technical solutions :
[0012] This application provides a divider for a laterite nickel spiral chute , which includes an outer cylinder, an inner cylinder, several spiral tubes , and multiple ore pulp discharge pipes . The inner cylinder is positioned within the outer cylinder, and the interior of the inner cylinder is connected to the slurry feed pipe . An annular chamber is formed between the outer wall of the outer cylinder and the inner wall of the inner cylinder . Several spiral tubes are uni formly arranged along the circumferential side of the inner cylinder and are all located within the annular chamber . One end of each spiral tube connects to the interior of the inner cylinder, while the other end spirals downward, allowing the pulp to flow through the spiral tube and into the annular chamber . Several pulp discharge pipes are uni formly arranged on the peripheral side of the outer cylinder and are all connected to the annular chamber .
[0013] The pulp is fed into the inner cylinder tube , where it is uni formly discharged through multiple spiral tubes . This process creates a spinning motion in the annular chamber . Simultaneously, the pulp impacts the bottom of the ring chamber . Finally, the pulp is uni formly discharged through multiple discharge pipes , directing it to the secondary homogeni zer and the spiral chute . In certain embodiments , the bottom of the inner wall o f the outer cylinder is curved, connecting the inner wall of the outer cylinder to the inner bottom wall . The pulp discharge tube is attached to the curved surface and is oriented along the spiral direction of the spiral tube .
[0014] In certain embodiments , the outer tube is designed as a conical structure , with its inner diameter gradually decreasing from top to bottom . The inner cylinder is positioned coaxially within the outer cylinder .
[0015] In certain embodiments , the bottom of the inner cylinder is positioned higher than the bottom of the outer cylinder . To achieve the desired pad height of the inner cylinder, a pad is placed at the bottom of the inner cylinder . The top and bottom ends of the pad are connected to the inner and outer cylinders , respectively . The outer diameter of the pad matches that of the inner cylinder, and the outer side of the pad is af fixed to the outer surface of the inner cylinder .
[0016] In certain embodiments , the slurry feeding pipe is positioned at the top of the inner cylinder . One end of the pipe is connected to the top of the inner cylinder, while the feed end of the slurry feeding pipe aligns with the bottom surface of the inner wall of the inner cylinder . This des ign ensures that the impact force from the feed directly acts on the bottom of the inner cylinder , thereby preventing the precipitation of materials on the inner surface of the cylinder .
[0017] In certain embodiments , the number of pulp discharge tubes is equal to the number of spiral tubes , with both typically ranging from 6 to 10 .
[0018] Compared to existing technologies , the Equi zer for the spiral chute designed for laterite nickel ore , as presented in this application, features a unique configuration . It consists of an outer cylinder, an inner cylinder, several spiral pipes , and multiple ore pulp discharge pipes . By designing the equal tank as a combination of inner and outer cylinders , the slurry is first directed into the inner cylinder, which has a smaller diameter . This design ensures that the feed impacts the entire bottom of the inner cylinder, preventing sedimentation within the inner tube . The discharge from the inner cylinder utili zes multiple downward- spiraling tubes, which direct the flow to the bottom of the annular chamber formed between the inner and outer cylinders. This arrangement helps to avoid pulp deposition in the annular chamber. Additionally, the pulp discharged through the spiral tubes creates turbulence within the annular chamber, enhancing the fluidity of the mineral pulp. This design further minimizes the risk of slurry deposition in the annular chamber, allowing each ore pulp discharge pipe to operate uniformly. Consequently, this configuration significantly improves discharge efficiency.
[0019] BRIEF DESCRIPTION OF THE DRAWINGS
[0020] FIG. 1 is a schematic diagram illustrating the overall stereoscopic structure of the divider for the laterite nickel spiral chute, as provided by the embodiment of the present application .
[0021] FIG. 2 is a schematic diagram illustrating the overall main profile structure of the divider for laterite nickel ore, as provided by the embodiment of this application.
[0022] FIG. 3 is a schematic diagram illustrating the overall top structure of the divider for the laterite nickel spiral chute, as provided by the embodiment of the present application.
[0023] FIG. 4 is a diagram illustrating the overall main structure of the divider for the laterite nickel spiral chute, as provided by the embodiment of the present application.
[0024] FIG. 5 is a schematic diagram illustrating the stereoscopic structure of the divider for the laterite nickel spiral chute, as provided by the embodiment of the present application.
[0025] FIG. 6 is a schematic representation of the inner cylinder of the laterite nickel ore spiral groove, as provided by the embodiment of the present application.
[0026] Note on the attached drawings :
[0027] 1. Outer cylinder; 11. Annular chamber; 12. Arc surface; 2. Inner cylinder; 3. Spiral pipe; 4. Pulp outlet pipe; 5. Pulp inlet pipe; 6. Cushion platform.
[0028] DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0029] In order to clarify the purpose, technical application, and advantages of the application, it is explained in detail in conj unction with the drawings and embodiments . It should be understood that the speci f ic embodiments described herein are intended solely to interpret the application and not to define its scope .
[0030] When the laterite nickel ore slurry is fed into the homogeni zer, the inclined or transverse arrangement of the existing feed pipes causes the slurry to impact the side of the divider . This movement shi fts the slurry to the opposite side , where it becomes blocked and suddenly slows down . The particulate matter in the slurry deposits due to inertia, leading to a degree of blockage that slows the side discharge . Consequently, the opposite side discharges more quickly, impacting the spiral chute . Ultimately, this situation hinders equal distribution and af fects the discharge ef ficiency of the outlet . To address the technical issues described above , this application proposes a divider for the laterite nickel spiral chute . The design features an equal tank in the form of inner and outer cylinders . The slurry ' s impact will target the entire bottom of the inner cylinder, preventing deposition within the inner tube . The discharge from the spiral tube will impact the bottom of the annular chamber formed between the inner and outer tubes , keeping the slurry in motion within the annular chamber . This design helps avoid slurry deposition and improves discharge ef ficiency .
[0031] It is important to note that the laterite nickel ore spiral chute described in this application is utili zed primarily for pulp processing . For the sake of convenience , this application focuses on the use of the laterite nickel ore spiral chute in pulp processing; however, the underlying principles of the spiral chute ' s operation are fundamentally the same when applied to other types of material processing .
[0032] Please refer to Figures 1 through 6 . The divider for the laterite nickel spiral chute consists of the following components : outer tube 1 , inner tube 2 , several spiral tubes 3 , and multiple pulp discharge pipes 4 . The inner tube 2 is positioned within the outer tube 1 . The interior of the inner tube 2 is connected to the slurry feed pipe 5 . An annular chamber 11 is formed between the outer wall of the outer tube 1 and the inner wall of the inner tube 2 . Several spiral tubes 3 are uni formly arranged along the circumferential side of the inner tube 2 and are all located within the annular chamber 11. One end of each spiral tube 3 connects to the interior of the inner tube 2, while the other end is angled downward. This design allows the pulp discharged through the spiral tube 3 to flow into the annular chamber 11. Additionally, several pulp discharge pipes 4 are uniformly arranged around the outer tube 1, all of which communicate with the annular chamber 11.
[0033] In this device, the inner cylinder (2) is positioned within the outer tube (1) . An annular chamber (11) is formed in the outer cylinder (1) . When in operation, the pulp is introduced into the interior of the inner tube (2) through the pulp feed pipe (5) . The interior of the inner tube (2) is connected to the annular chamber (11) via the spiral tube (3) , with one end of the spiral tube (3) inclined downward. After the discharge from the inner tube (2) through multiple spiral tubes (3) , a flow (1) is generated in the annular chamber (11) , enhancing the mobility of the mineral slurry within it. The pulp, in a cyclone state, is less likely to settle. Simultaneously, the spiral tube (3) impacts the bottom of the annular chamber (11) , preventing the accumulation of slurry deposits. The pulp in the annular chamber (11) is ultimately discharged evenly through several pulp discharge tubes (4) , directing it to the secondary mean divider and the spiral chute for uniform sorting. Reason: Improved clarity, readability, and technical accuracy by correcting grammatical errors, enhancing vocabulary, and restructuring sentences for better flow.
[0034] Revised Text: To prevent the deposition of material at the connection point between the side wall and the bottom wall of outer cylinder 1, this embodiment, as illustrated in FIG. 2, features a design where the bottom of the inner wall of outer cylinder 1 is connected to the bottom surface of the inner wall. Specifically, the connecting surface between the two is a curved surface, referred to as curved surface 12. This design allows the slurry at the arc connection to flow freely under the impact generated by the slurry discharge, thereby preventing deposition at the junction of the bottom of the inner wall and the bottom surface of the inner wall of outer cylinder 1. Additionally, outer cylinder 1 is designed with a tapered structure, where the inner diameter gradually narrows from top to bottom. The combination of the conical outer cylinder 1 , curved surface 12 , and spiral tube 3 enhances the impact on the annular chamber 11 , further reducing the likelihood of deposition .
[0035] In order to discharge the annular chamber 11 , as shown in FIG . 3 , the pulp discharge pipe 4 is connected to the arc surface 12 and is oriented along the spiral direction of the spiral tube 3 . This configuration allows the mineral slurry, while in a spinning state , to flow downstream into each pulp discharge pipe 4 and be expelled through the pulp discharge pipe 4 , ensuring that no turbulence occurs during the discharge process .
[0036] Preferably, the angle a of the pulp pipe 4 should be between 0 ° and 45 ° ( 0 ° < a < 45° ) .
[0037] Furthermore , the lowest point of the spiral tube 3 , located near the inner end of the inner tube 2 , is aligned with the hori zontal plane of the bottom end of the inner tube 2 . Additionally, the pulp discharge pipe 4 is positioned at the bottom of the outer tube 1 , allowing for the complete discharge of all slurry within the divider .
[0038] In this embodiment , as illustrated in FIG . 1 , the inner tube 2 is arranged coaxially with the outer tube 1 . The bottom of the inner tube 2 is positioned above the bottom of the outer tube 1 , allowing the spiral tube 3 to be mounted downward . This configuration facilitates the generation of a downward spiral impact force by the spiral tube 3 .
[0039] Since the bottom of inner tube 2 is positioned above the bottom of outer tube 1 , the installation of inner tube 2 can be facilitated by referring to Figures 1 through 3 . The bottom of inner table 6 can be fixed to the inner wall of inner tube 1 . The height of inner tube 2 can be adj usted by setting inner table 6 at the bottom . During the installation of inner cylinder 2 , pad 6 can be secured to the bottom of inner cylinder 2 . Subsequently, both pad 6 and inner cylinder 2 can be fixed inside outer cylinder 1 . Additionally, pad 6 can be secured to the interior of outer cylinder 1 to help position inner cylinder 2 , which can then be fixed onto pad 6 .
[0040] Preferably, the outer diameter of pad 6 should match the outer diameter of inner cylinder 2 . Additionally, pad 6 is coaxially connected to ensure that its outer side aligns with the outer face of inner cylinder 2, while the bottom of inner cylinder 2 remains free of slurry.
[0041] Because the inner tube 2 is inserted into the outer tube 1, and since inner tube 2 is smaller in diameter, the orientation of the ore pulp inlet pipe 5— whether inclined, transverse, or verticalwill direct the impact of the ore slurry towards the bottom of the inner tube 2. As a result, there will be no deposition within the inner tube 2. To enhance the anti-deposition effect, as illustrated in FIG. 2, the pulp feed pipe 5 is positioned centrally at the top of the inner tube 2. One end of the pipe is connected to the top of the inner tube 2, while the feed end of the pulp feed pipe 5 aligns with the bottom surface of the inner tube 2, ensuring that the feed impact is effectively directed to the bottom of the inner tube 2.
[0042] It is understood that in other embodiments, the pulp feed pipe 5 may be tilted or arranged horizontally, in which case it connects to the side wall of the inner tube 2.
[0043] In this embodiment, as illustrated in FIGS. 3 to 6, the number of pulp pipes (4) is equal to the number of screw tubes (3) , and the inner diameter of the pulp pipe (4) is less than or equal to the inner diameter of the screw tube (3) . Specifically, the number of spiral tubes (3) and pulp discharge tubes (4) is set to a range of 6 to 10, allowing them to share the discharge from the inner tube (2) with the discharge from the annular chamber (11) . The annular chamber (11) can discharge through the pulp discharge tube (4) to the secondary divider and the spiral chute.
[0044] Furthermore, from a top-down perspective, the length of spiral tube 3 is one-third of the circumference of the spiral circle. This design allows the slurry to spin and generate a downward impact as it flows through spiral tube 3, thereby reducing the overall cost of the device.
[0045] Working Principle: The pulp is transported to the inner tube
[0046] (2) via the pulp feed pipe (5) . The interior of the inner tube (2) is connected to the annular chamber (11) through the spiral tube
[0047] (3) . As the pulp is discharged from the inner tube (2) through multiple spiral tubes (3) , it creates turbulence in the annular chamber (11) . This turbulence enhances the mobility of the mineral slurry within the annular chamber (11) . Additionally, the spiral tube ( 3 ) impacts the bottom of the annular chamber ( 11 ) , preventing the accumulation of slurry deposits . Ultimately, the pulp in the annular chamber ( 11 ) is evenly discharged through several pulp discharge tubes ( 4 ) and delivered to the secondary mean divider and the spiral chute for uni form sorting .
[0048] Through the outer tube 1 , the inner tube 2 , several spiral tubes 3 , and multiple ore pulp discharge pipes 4 provided in this application, the design of the equal tank is structured as an inner and outer cylinder . This configuration allows the evenly divided slurry to first enter the inner cylinder 2 . Due to the small inner diameter of the inner cylinder 2 , the slurry ' s feed impacts the entire bottom of the inner cylinder 2 , preventing any deposition inside it . The discharge from the inner tube 2 utili zes multiple downward spiral tubes 3 . The discharge from these spiral tubes 3 impacts the bottom of the annular chamber 11 formed between the inner and outer tubes 1 , which helps avoid slurry deposition in the annular chamber 11 . Additionally, the pulp discharged through the spiral tube 3 spins within the annular chamber 11 , enhancing the mobility of the mineral slurry and further preventing deposition . This design ensures that each pulp discharge pipe 4 can release its contents uni formly, promoting consistent separation in the average separator and improving discharge ef ficiency . Reason : Improved clarity, readability, and technical accuracy while maintaining the original meaning .
[0049] In the description of this application, it is noted that the orientation or position relationships indicated by the terms "up" and "down" are based on the orientation or position relationships shown in the attached drawings , only to facilitate the description of this application and simpli fy the description, rather than indicating or implying that the device or element must have a speci fic orientation and operate in a speci fic orientation, and thus cannot be understood as a limitation of this application . Unless otherwise speci fied and defined, the terms " installation" , " connection" and " connection" should be broadly understood, for example , either fixed, removable or integrated, or mechanical or electrical , or directly or indirectly through an intermediate medium, or within the two components . For persons of ordinary skill in the art , the speci fic meaning of the above terms may be understood in this application . To be clear, the term "include", "include" or any other variant intended to cover non-exclusive inclusion, thus including a series of elements of the process, method, item or equipment includes not only those elements, but also other elements not explicitly listed, or also include elements inherent to this process, method, item, or equipment. Without more restrictions, the elements defined by the statement "including a..." does not exclude the existence of other same elements in the process, method, article, or device including the elements.
[0050] The specific embodiment of the present application described above does not constitute a limitation of the scope of protection of this application. Any other corresponding changes and deformation made in accordance with the technical conception of the application shall be covered within the protection of the claims of the application.
Claims
WHAT IS CLAIMED IS1 . A dividator for laterite nickel spiral chute , characteri zed by : outer barrel ;Inner cylinder, the inner cylinder is connected with the outer cylinder, and an annular chamber is formed between the outer wall of the outer cylinder and the inner wall of the inner cylinder ;A number of spiral tubes , a number of the spiral tubes are evenly arranged on the peripheral side of the inner tube and are located in the annular chamber, one end of the spiral tube is connected with the inner tube and the other end is tilted downward so that the pulp can form spin in the annular chamber after being discharged through the spiral tube ; and,There are several pulp discharge tubes , several of which are uni formly arranged on the peripheral side of the outer tube and are connected with the annular chamber .2 . An tor of the laterite nickel ore spiral chute according to claim 1 , wherein the connecting surface of the inner wall bottom of the outer cylinder and the bottom surface of the inner wall is provided as an arc surface .3 . The dividtor of the laterite nickel ute according to claim 2 , wherein the pulp discharge tube is connected to the curved surface and arranged along the helical direction of the spiral tube .4 . According to the claim of claim 1 , the outer tube is a conical structure and its inner diameter is gradually reduced from top to bottom .5 . A laterite nickel spiral chute equimeter according to claim 1 , wherein the inner cylinder is arranged coaxially with the outer cylinder and the bottom of the inner cylinder is higher than the bottom of the outer cylinder .6 . The dividtor of the laterite nickel spiral chute of claim 1 , wherein the bottom of the inner cylinder is provided with a pad, and the top and bottom ends of the pad connect the inner cylinder and the outer cylinder respectively .7 . The separator of the laterite nickel spiral chute according to claim 6 , wherein 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 face of the inner cylinder .8 . According to claim 1 , the pulp feeding pipe is disposed at the top of the inner cylinder, one end of which is connected to the top of the inner cylinder, and the feed end of the pulp feeding pipe corresponds to the bottom surface of the inner wall of the inner cylinder .9 . An dividi zer for the laterite nickel spiral ute according to claim 1 , wherein the number of the pulp discharge tubes is equal to the number of the spiral tubes .10 . The equali zer for the laterite nickel ore spiral chute according to claim 1 , wherein the helical tubes are provided with
Citation Information
Patent Citations
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