Wall-attached jet type integrated ore collection, separation and transportation equipment and its design method

Abstract

The present invention provides an integrated collecting equipment for wall-attached jet type ore collection, separation and transportation and its design method, belonging to the technical field of deep-sea mineral resources collection. The equipment includes: a collecting device that designs a Coanda effect jet plate using curve coordinates s-θ, a separation mechanism with an internal grid, a conveying hose mechanism that weaves a metal hose with a modified generalized rose curve, as well as a feeding mechanism, a conveying mechanism and a pumping device. Its design method includes: designing a Coanda effect jet plate through a formula so that it is tangent and connected to the lifting inclined pipe and the main nozzle; defining the metal hose weaving structure using the modified generalized rose curve formula; and deriving the critical included angle of the grid in the separation chamber based on fluid mechanics. The present invention efficiently integrates the functions of ore collection, separation and transportation, solves the problems of low efficiency and unreasonable structural connection of existing collecting equipment, and significantly improves the collection efficiency of deep-sea nodule ore and the reliability of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical fields of mining equipment and fluid machinery, and particularly to an integrated ore collection, separation, and transportation equipment based on the Coanda effect and a design method thereof. This technology integrates multiple functions to improve the efficiency and quality of deep-sea nodule ore collection. Background Art

[0002] With the gradual depletion of land mineral resources, the development and utilization of deep-sea mineral resources have received increasing attention. Deep-sea nodule ore is rich in various metal elements and has extremely high economic value. In the process of deep-sea mineral collection, the ore collection technology based on the Coanda effect jet has been applied to a certain extent. However, the curved panels of the existing ore collection heads based on the Coanda effect jet usually adopt an arc shape, which makes the growth of the wall-attached jet uneven and the jet growth rate unstable, resulting in uneven pressure difference force provided for the nodule ore and unable to uniformly increase the ore movement speed, thus affecting the collection efficiency. In terms of the pipeline connection of the collection equipment, although metal hoses are commonly used for soft connection between pipelines and can compensate for large displacement deviations, the braided structure design of traditional metal hoses is not reasonable enough, and interference is likely to occur between the wire strands, affecting the service life and performance of the hoses. Moreover, in the integrated design of ore collection, separation, and transportation, the connection between various parts of the structure is not optimized enough, and the determination of the grille angle in the separation chamber lacks a scientific basis, resulting in the need to improve the working efficiency and stability of the entire collection equipment.

[0003] Therefore, there is an urgent need for an integrated ore collection, separation, and transportation equipment based on the Coanda effect and a design method thereof to solve the problems existing in the prior art. Summary of the Invention

[0004] The embodiments of the present invention provide a wall-attached jet type integrated ore collection, separation, and transportation equipment and a design method thereof, aiming at the problems existing in the current technology, such as the unstable jet growth rate of the arc-shaped curved panel resulting in uneven distribution of ore lifting force, the easy vibration and wire strand interference of metal hoses under complex working conditions, and the lack of an accurate control method for the grille angle in the separation chamber.

[0005] The core technology of the present invention mainly optimizes the linear growth characteristics of the jet through a logarithmic spiral Coanda effect ore collection hood, combines a modified generalized rose curve metal hose to suppress vibration, and derives an empirical formula for the critical included angle γ of the grille in the separation chamber based on mechanical balance to achieve efficient collection, stable transportation, and precise separation of deep-sea minerals.

[0006] In the first aspect, the present invention provides a wall-attached jet type integrated ore collection, separation, and transportation equipment, including:

[0007] A visualization experimental water tank;

[0008] A conveyor belt is arranged along the length direction of the visualization experimental water tank and is used for conveying simulated ore particles.

[0009] A feeding mechanism has a tapered shape along the depth direction of the visualization experimental water tank and is used for laying simulated ore particles on the conveyor belt.

[0010] A collection device is erected above the conveyor belt and includes a main spray pipe, a secondary spray pipe, and a collecting hood. A logarithmic spiral Coanda effect curved panel is arranged inside the collecting hood and is used for collecting and conveying the simulated ore particles on the conveyor belt to a conical hopper through a lifting inclined pipe.

[0011] A conical hopper conveys the simulated ore particles to a separation bin outside the visualization experimental water tank through a hose.

[0012] The separation bin is provided with a grille inside, a discharge port at the bottom, and a suction pump is connected to the top through a suction pump pipeline. The grille can block the simulated ore particles so that the simulated ore particles are discharged from the discharge port.

[0013] Further, the hose is provided with a section of metal hose, and the metal hose includes a metal mesh sleeve, a corrugated pipe, a joint, and a connected floating body.

[0014] Further, the projection curve of the metal mesh sleeve is defined by a modified generalized rose curve, and the expression is:

[0015]

[0016] Wherein, R e represents the nominal radius of the braided structure and determines the overall size of the mesh sleeve; h is the undulation height of the braided strands, which affects the flexibility and compressive strength of the mesh sleeve; N is the number of fluctuations of the braided strands within one pitch and is used to control the braiding density; P is the pitch of the braided strands and determines the spiral characteristics of the braided structure; δ is an angle parameter used to parametrically describe the spatial position of the strands;

[0017] x, y are used to describe the projection trajectory of the braided strands on a plane perpendicular to the axis of the hose through polar coordinates; L is the axial movement distance of the braided strands and is used to convert the angle parameter into an actual displacement.

[0018] Further, the logarithmic spiral Coanda effect curved panel adopts a curved surface coordinate s-θ design, and the specific formula is:

[0019]

[0020] Among them, r is the straight-line distance from the origin O to the specified point on the curve, which is used to determine the spatial position of the logarithmic spiral Coanda effect curved panel; R is the radius of curvature of the specified point, which determines the degree of curvature of the curve at the specified point; θ is the angle turned from the origin to the specified point, which reflects the extension state of the curve along the rotation direction; s is the curve parameter, which is used to scale the expansion rate of the logarithmic spiral and affects the density of the spiral.

[0021] Furthermore, the logarithmic spiral Coanda effect curved panel is smoothly connected to the lifting inclined pipe and the main nozzle. The definition of smooth connection is as follows:

[0022] The angle β between the lifting inclined pipe and the horizontal plane is 40 - 50°;

[0023] The angle α between the wall of the main nozzle and the horizontal plane is 25 - 35°;

[0024] The distance between the lowest point of the logarithmic spiral Coanda effect curved panel and the ground is between the upper distance threshold and the lower distance threshold;

[0025] The logarithmic spiral Coanda effect curved panel is tangent to the lifting inclined pipe at the first tangent point and tangent to the main nozzle at the second tangent point.

[0026] Furthermore, the critical angle γ between the grille and the horizontal plane is determined by an implicit equation:

[0027]

[0028] Among them, F d is the component of the fluid drag force perpendicular to the flow direction; μ is the friction coefficient between the ore and the grille; m is the total mass of the simulated ore particles; g is the acceleration due to gravity;

[0029]

[0030] Among them, ρ f is the fluid density; v is the flow velocity; A is the total cross-sectional area of the simulated ore particles; C d is the drag coefficient.

[0031] Furthermore, the empirical formula for the critical angle γ between the grille and the horizontal plane is:

[0032]

[0033] Among them, ρ p is the ore density, and d is the average particle size of the simulated ore particles.

[0034] Furthermore, the hose adopts a double-arch or single-arch configuration.

[0035] Furthermore, the simulated ore particles are composed of quartz sand, cement, and perlite.

[0036] Second aspect, the present invention provides a design method for an integrated collection equipment of wall-attached jet type ore collection, separation and transportation, including the following steps:

[0037] Design a logarithmic spiral Coanda effect curved panel through the logarithmic spiral formula, and make it tangent and connected to the lifting inclined pipe and the main nozzle;

[0038] Define the braided structure of the hose by using the modified generalized rose curve formula;

[0039] Derive the critical angle γ of the grille in the separation chamber based on fluid mechanics;

[0040] Integrate the logarithmic spiral Coanda effect curved panel, the hose and the separation chamber into the collection equipment.

[0041] The main contributions and innovations of the present invention are as follows:

[0042] 1. Improvement of collection efficiency: Breaking through the traditional arc curved panel design, adopting a logarithmic spiral Coanda effect curved panel, making the growth rate of the wall-attached jet constant, providing a uniform pressure difference force for the ore, solving the problem in the prior art that the uneven jet causes the ore movement speed to increase unevenly, and significantly improving the collection efficiency of deep-sea nodule ore.

[0043] 2. Optimization of hose performance: By braiding a metal hose with a modified generalized rose curve, realizing "one strand straddling three strands" non-interference braiding, combined with the double-arch / single-arch configuration design, solving the problem of strand interference compared with traditional metal hoses, improving the flexibility, displacement compensation ability and service life of the hose, and enhancing the reliability of the equipment.

[0044] 3. Optimization of structural coordination: The Coanda effect jet plate is designed through a specific formula, tangent and connected to the lifting inclined pipe and the main nozzle to ensure a smooth flow field; the critical angle of the grille in the separation chamber is determined through scientific formula derivation, realizing more efficient ore separation compared with the blindness of the separation structure design in the prior art, and overall achieving the integrated and efficient operation of ore collection, separation and transportation.

[0045] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present invention more concise and understandable. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0047] Figure 1 is a schematic structural diagram of an integrated collection equipment of wall-attached jet type ore collection, separation and transportation according to an embodiment of the present invention;

[0048] Figure 2 It is a structural design diagram of a collection device according to an embodiment of the present invention;

[0049] Figure 3 It is a structural diagram of a hose according to an embodiment of the present invention;

[0050] Figure 4 It is a schematic diagram of a double-arch configuration hose according to an embodiment of the present invention;

[0051] Figure 5 It is a schematic diagram of a single-arch configuration hose according to an embodiment of the present invention.

[0052] In the figure, 1, visual experimental pool; 2, conveyor belt; 3, feeding mechanism; 4, collection device; 5, hose; 6, separation bin; 7, suction pump pipeline; 8, suction pump; 9, conical hopper; 10, impeller feeder; 21, limit plate; 41, main spray pipe; 42, secondary spray pipe; 43, ore collection hood; 431, curved panel; 44, lifting inclined pipe; 45, main spray and suction pump; 46, secondary spray and suction pump; 51, metal mesh sleeve; 52, corrugated pipe; 53, joint; 61, grille. Specific Embodiments

[0053] Here, exemplary embodiments will be described in detail, and examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of this specification. On the contrary, they are merely examples of devices and methods that are consistent with some aspects of one or more embodiments of this specification as detailed in the appended claims.

[0054] It should be noted that: In other embodiments, the steps of the corresponding methods are not necessarily executed in the order shown and described in this specification. In some other embodiments, the steps included in the method may be more or less than those described in this specification. In addition, a single step described in this specification may be decomposed into multiple steps for description in other embodiments; and multiple steps described in this specification may also be combined into a single step for description in other embodiments.

[0055] Existing deep-sea mineral collection equipment based on the Coanda effect jet has problems such as low collection efficiency, unreasonable metal hose braiding structure, poor connection of each part of the structure, and lack of scientific design of the separation bin grille angle.

[0056] Based on this, the present invention is based on a new design to solve the problems existing in the prior art.

[0057] Embodiment 1

[0058] The present invention aims to propose a wall-attached jet type integrated ore collection, separation, and transportation equipment method. By adopting a Coanda effect curved panel 431 with a logarithmic spiral shape and a collection - transportation integrated hose 5 with a modified generalized rose curve design for the metal mesh sleeve 51, designing the Coanda effect jet plate through a specific formula and determining its connection method with other structures, and deriving the determination method for the critical angle between the grille 61 and the horizontal plane in the separation chamber 6, the efficient integration of ore collection, separation, and transportation is achieved.

[0059] Specifically, the embodiment of the present invention provides a wall-attached jet type integrated ore collection, separation, and transportation equipment. Specifically, referring to Figure 1 , the collection equipment includes:

[0060] A visualization experimental pool 1, by constructing a controllable pool environment, reproducing the hydrodynamic conditions (such as water flow velocity, ore suspension state) of the deep-sea ore collection scenario, providing a test scenario close to the actual deep-sea working conditions for the ore collection equipment, and ensuring the feasibility of the technical solution in practical applications;

[0061] In this embodiment, the visualization experimental pool 1 utilizes the "visualization" feature to directly observe the internal flow field changes (such as the Coanda effect jet morphology), ore movement trajectories, and ore separation processes in the separation chamber 6 during the operation of the collection equipment, facilitating the analysis of the equipment working mechanism and accurately positioning the technical optimization points. Combining the ore laid in the pool (such as simulated ore made of quartz sand, cement, and perlite), testing the jet effect of the logarithmic spiral curved panel 431, the rationality of the critical angle design of the grille 61 in the separation chamber 6, etc., verifying the core technical parameters through experimental data, and providing a basis for equipment optimization. As an experimental carrier for the integrated collection equipment (including the feeding mechanism 3, conveyor mechanism, pumping device, etc.), supporting the linkage test of the entire process of ore collection, separation, and transportation, ensuring the stability of the coordinated operation of each component, and guaranteeing the reliability of the overall performance of the equipment.

[0062] A conveyor belt 2, arranged along the length direction of the visualization experimental pool 1, for transporting simulated ore particles;

[0063] In this embodiment, the conveyor belt 2 is driven by a motor and is specifically designed for the underwater environment. The simulated nodular ore (simulated ore particles) is made by mixing quartz sand, cement, and perlite in a mixer, configured into a material with a specific gravity of 2, and then kneaded into spherical particles with a diameter of 1 - 8 cm in a pelletizer.

[0064] Preferably, a limiting plate 21 is further provided on the conveyor belt 2 to prevent the simulated ore particles discharged from the bottom of the feeding mechanism 3 from leaking outside the conveyor belt 2.

[0065] A feeding mechanism 3, with a tapered shape along the depth direction of the visualization experimental pool 1, for laying the simulated ore particles on the conveyor belt 2;

[0066] In this embodiment, its main function is to lay simulated ore particles on the conveyor belt 2. It is a device of the prior art. For example, it is generally in a tapered shape along the depth direction of the pool and mainly consists of the following parts:

[0067] Funnel-shaped feed inlet: Located at the top, used for pouring in ore (such as simulated nodule particles);

[0068] Tapered conveying channel: The inner wall is smooth, guiding the ore to concentrate towards the bottom of the pool;

[0069] Flow control valve: Adjust the falling speed of the ore to adapt to the collection efficiency;

[0070] Dispersion outlet (optional): A perforated plate or a rotary nozzle is provided at the bottom to evenly spread the ore onto the conveyor belt 2.

[0071] Among them, this tapered shape helps to guide the ore to move more orderly towards the collection device 4, and at the same time can play a role in gathering the ore to a certain extent. At the shallower position of the pool, the opening of the feeding mechanism 3 is larger, which can accommodate more ore. As the depth increases, the opening gradually becomes smaller, making the ore gradually concentrate during the downward movement, facilitating the subsequent efficient collection by the collection device 4.

[0072] Collection device 4, erected above the conveyor belt 2, includes a main spray pipe 41, a secondary spray pipe 42, and a ore collection hood 43. A logarithmic spiral Coandă effect curved panel 431 is arranged inside the ore collection hood 43, which is used to collect and convey the simulated ore particles on the conveyor belt 2 to the conical hopper 9 through the lifting inclined pipe 44;

[0073] In this embodiment, the main spray pipe 41 is connected to the main spray suction pump 45 through a pipeline, and the secondary spray pipe 42 is connected to the secondary spray suction pump 46 through a pipeline.

[0074] Among them, the logarithmic spiral Coandă effect curved panel 431 (hereinafter referred to as the curved panel 431) is designed using the curve coordinates s-θ and designed using the following formula:

[0075]

[0076] Among them, r is the straight-line distance from the origin O to the specified point on the curve, which is used to determine the spatial position of the curved panel 431; R is the radius of curvature of the specified point, which determines the degree of bending of the curve at the specified point; θ is the angle turned from the origin to the specified point, which reflects the extension state of the curve along the rotation direction; s is the curve parameter, which is used to scale the expansion rate of the logarithmic spiral and affects the density of the spiral.

[0077] 1) First, determine the angle β between the lifting inclined pipe 44 and the horizontal plane to be 40 - 50°, then the upper plate L1 of the lifting inclined pipe 44 can be determined.

[0078] 2) Determine the angle α between the wall L2 of the main nozzle 41 and the horizontal plane, where α = 25 - 35°.

[0079] 3) Adjust the position and orientation of the curved panel 431 such that the distance H between the lowest point of the logarithmic spiral curve C and the ground lies between the upper and lower distance thresholds H δ1 and H δ2 .

[0080] 4) As Figure 2 shown, fit the logarithmic spiral curve C to L1 and L2 such that C is tangent to L1 at point S 11 , and C is tangent to L2 at point S1.

[0081] Thus, a smooth connection between the curved panel 431, the lifting inclined pipe 44, and the jet main nozzle 41 is achieved, optimizing the jet path, ensuring the smoothness and stability of the overall flow field of the collection device 4, and improving the ore collection efficiency. The curved panel 431 can utilize the Coanda effect to make the jet fluid flow along the surface of the jet plate, providing a pressure difference force for the ore to drive the movement of the ore and achieving efficient collection.

[0082] The conical hopper 9 conveys the simulated ore particles to the separation chamber 6 outside the visualization experiment water tank 1 through the hose 5;

[0083] In this embodiment, the ore collected by the collection device 4 reaches the conical hopper 9 through the inclined ore collection pipe. The hopper is connected to the impeller feeder 10, and then to a section of hose 5. The hose 5 extends outside the water tank, and the outlet of the hose 5 is connected to the side of the separation chamber 6. The impeller feeder 10 is of an open design, and the surrounding water can flow into the impeller channel of the feeder.

[0084] Preferably, the present invention adopts an integrated design concept of collection - transportation, which can take into account the vibrations of both the hose 5 and the collection device 4 under the combined action of internal and external flows. As Figure 3 shown, the hose 5 equipment includes a section of metal conveying hose 5. This metal hose 5 includes a metal mesh sleeve 51, a corrugated pipe 52, a joint 53, and a connected floating body. The present invention modifies the generalized rose curve to define the projection curve of the metal mesh sleeve 51 as shown in the following formula:

[0085]

[0086] where R e represents the nominal radius of the braided structure, determining the overall size of the mesh sleeve; h is the undulation height of the braided strands, affecting the flexibility and compressive strength of the mesh sleeve; N is the number of fluctuations of the braided strands within one pitch, used to control the braiding density; P is the pitch of the braided strands, determining the helical characteristics of the braided structure; δ is the angle parameter, used to parametrically describe the spatial position of the strands;

[0087] x and y are used to describe the projection trajectory of the braided strands on the plane perpendicular to the axis of the hose 5 in polar coordinates; L is the axial movement distance of the braided strands, which is used to convert the angular parameter into the actual displacement.

[0088] The traditional rose curve is r = α * sin(Nθ) (the meanings of the specific symbols are prior art and will not be elaborated here), while the present invention forms an offset rose curve by superimposing R e and h * sin(Nδ), so that when the strands are braided, they can not only maintain a spiral trend, but also optimize the gap between the wire strands through the undulation height h and the fluctuation times N to avoid interference. This design can achieve high-quality braiding with one strand crossing three strands and no interference between the wire strands. That is, by modifying the projection curve of the generalized rose curve to define the metal mesh sleeve 51, the problems of wire strand interference and insufficient flexibility in the braiding of the traditional metal hose 5 are solved, and "one strand crossing three strands" non-interference braiding is achieved, improving the reliability of the hose 5 under complex working conditions.

[0089] Preferably, as Figure 4 and Figure 5 shown, the hose 5 adopts a double-arch or single-arch configuration.

[0090] The separation chamber 6 is internally provided with a grille 61, a discharge port is arranged at the bottom, and a suction pump 8 is connected to the top through a suction pump pipeline 7. The grille 61 can block the simulated ore particles so that the simulated ore particles are discharged from the discharge port.

[0091] In this embodiment, the three pumps, namely the main and auxiliary spray pumps and the suction pump 8, are all fixed on the vertical bracket, and the installation method, installation position and structure of this bracket are not limited.

[0092] Among them, the separation chamber 6 is internally provided with a grille 61. After the ore enters the separation chamber 6 through the hose 5, it is blocked by the grille 61 and discharged from the lower outlet. The upper part of the separation chamber 6 is connected to the suction pump pipeline 7, and the suction action of the suction pump 8 provides the power for the ore to reach the separation chamber 6 from the outlet of the feeder and realize solid-liquid separation.

[0093] Preferably, the method for determining the critical angle γ between the grille 61 in the separation chamber 6 and the horizontal plane is as follows:

[0094] The gravitational component of the ore entering the separation chamber 6 along the inclined plane direction of the grille 61 is ;

[0095] The fluid drag force component perpendicular to the flow direction is ;

[0096] The normal support force is ;

[0097] It is necessary to satisfy the sliding condition of the ore particles to obtain the implicit equation of the critical angle γ:

[0098]

[0099] Ignoring the high-order terms, an empirical formula for the critical angle γ is obtained:

[0100]

[0101] where F d is the component of the fluid drag force perpendicular to the flow direction; μ is the friction coefficient between the ore and the grille 61; m is the total mass of the simulated ore particles; g is the acceleration due to gravity; ρ f is the fluid density; v is the flow velocity; A is the total cross-sectional area of the simulated ore particles; C d is the drag coefficient; ρ p is the ore density, and d is the average particle size of the simulated ore particles.

[0102] In this way, by deriving the implicit equation of the critical angle γ through the mechanical equilibrium equation and simplifying it into an empirical formula, the grille angle can be dynamically adjusted according to the ore density (ρ p ), particle size (d), and flow velocity (v) to ensure the sliding separation of the ore along the grille. The solid-liquid separation efficiency is significantly improved, and the ore residue and fluid energy consumption are reduced.

[0103] In summary, through the optimization of the jet stability by the logarithmic spiral curved panel, the enhancement of the hose anti-vibration performance by the generalized rose curve braiding, the precise control of the separation angle by the mechanical equation, and the modular integrated design, the present invention comprehensively solves the problems of low collection efficiency, easy damage of the hose, incomplete separation, and complex system of traditional deep-sea mining equipment, significantly improves the comprehensive performance of ore collection, transportation, and separation, and is applicable to industrial applications in deep-sea complex working conditions.

[0104] Embodiment 2

[0105] Based on the same concept, the present invention also proposes a design method for a wall-attached jet type ore collection, separation, and transportation integrated collection equipment, including:

[0106] The following steps are included:

[0107] Design a logarithmic spiral Coandă effect curved panel 431 through the logarithmic spiral formula, and make it tangent and connected to the lifting inclined tube 44 and the main nozzle 41;

[0108] Define the braiding structure of the hose 5 using the modified generalized rose curve formula;

[0109] Derive the critical angle γ of the grille 61 in the separation chamber 6 based on fluid mechanics;

[0110] Integrate the logarithmic spiral Coandă effect curved panel 431, the hose 5, and the separation chamber 6 into the collection equipment of Embodiment 1.

[0111] Those skilled in the art should understand that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0112] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Wall jet type ore collection, separation and transportation integrated collection equipment, characterized in that: include: Visualization experimental pool; A conveyor belt is arranged along the length direction of the visualization experimental pool and is used to transport simulated ore particles; The material spreading mechanism, which is tapered along the depth direction of the visualization experimental water pool, is used to spread the simulated ore particles on the conveyor belt; A collection device is installed above the conveyor belt, comprising a main nozzle, an auxiliary nozzle and a collection cover, wherein a logarithmic spiral Coanda effect curved panel is provided in the collection cover, and is used to collect and transport the simulated ore particles on the conveyor belt into a conical hopper through a lifting inclined pipe; A conical hopper, which transports simulated ore particles to a separation bin outside the visualization experiment pool through a hose; A separation bin is provided with a grid inside, a discharge port at the bottom, and a suction pump connected to the top through a suction pump pipeline, wherein the grid can block the simulated ore particles so that the simulated ore particles are discharged from the discharge port; The critical angle γ between the grid and the horizontal plane is determined by an implicit equation: Among them, F d is the fluid drag force component perpendicular to the flow direction; μ is the friction coefficient between the ore and the grid; m is the total mass of the simulated ore particles; g is the gravitational acceleration; Among them, ρ f is the fluid density; v is the flow velocity; A is the total cross-sectional area of ​​the simulated ore particles; C d is the drag coefficient.

2. The wall-jet type ore collection, separation and transportation integrated collection equipment as claimed in claim 1, characterized in that: The hose is provided with a section of metal hose, which comprises a metal mesh sleeve, a bellows, a joint and a connected float.

3. The wall-jet type ore collection, separation and transportation integrated collection equipment as claimed in claim 2, characterized in that: The projection curve of the metal mesh sleeve is defined by a modified generalized rose curve, and the expression is: Among them, R e It represents the nominal radius of the braided structure and determines the overall size of the mesh; h is the undulation height of the braided strands, which affects the flexibility and compressive strength of the mesh; N is the number of fluctuations of the braided strands within one pitch, which is used to control the braiding density; P is the braided strand pitch, which determines the helical characteristics of the braided structure; δ is an angle parameter used to parameterize the spatial position of the strands; x, y are the projection trajectories of the braided strands on the plane perpendicular to the axis of the hose described by polar coordinates; L is the axial movement distance of the braided strands, which is used to convert the angle parameters into actual displacement.

4. The wall-jet type ore collection, separation and transportation integrated collection equipment as claimed in claim 1, characterized in that: The logarithmic spiral Coanda effect curved panel is designed using the surface coordinate s-θ, and the specific formula is: Among them, r is the straight-line distance from the origin O to the specified point on the curve, which is used to determine the spatial position of the logarithmic spiral Coanda effect curved panel; R is the radius of curvature of the specified point, which determines the degree of curvature of the curve at the specified point; θ is the angle from the origin to the specified point, which reflects the extension state of the curve along the direction of rotation; s is the curve parameter, which is used to scale the expansion rate of the logarithmic spiral and affect the density of the spiral.

5. The wall-jet type ore collection, separation and transportation integrated collection equipment as claimed in claim 4, characterized in that: The logarithmic spiral Coanda effect curved plate is smoothly connected with the lifting inclined tube and the main nozzle, wherein the smooth connection is defined as: The angle between the lifting inclined pipe and the horizontal plane is β=40~50°; The angle between the main nozzle wall and the horizontal plane is α=25~35°; The distance between the lowest point of the logarithmic spiral Coanda effect curved panel and the ground is between the upper distance threshold and the lower distance threshold; The logarithmic spiral Coanda effect curved plate is tangent to the lifting inclined tube at a first tangent point, and is tangent to the main nozzle at a second tangent point.

6. The wall-jet type ore collection, separation and transportation integrated collection equipment as claimed in claim 1, characterized in that: The empirical formula for the critical angle γ between the grid and the horizontal plane is: Among them, ρ p is the ore density, and d is the average particle size of the simulated ore particles.

7. The wall-jet type ore collection, separation and transportation integrated collection equipment according to any one of claims 1 to 6, characterized in that: The hose adopts a double-arch or single-arch configuration.

8. The wall-jet type ore collection, separation and transportation integrated collection equipment according to any one of claims 1 to 6, characterized in that: The simulated ore particles are composed of quartz sand, cement and perlite.

9. The design method of the wall-jet type ore collection, separation and transportation integrated collection equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: The logarithmic spiral type Coanda effect curved plate is designed by using the logarithmic spiral formula, and is connected tangentially with the lifting inclined pipe and the main nozzle; The braided structure of the hose is defined using the modified generalized rose curve formula; Based on fluid mechanics, the critical angle γ of the grille in the separation chamber is derived; Integrate logarithmic spiral Coanda effect curved panels, hoses and separation chambers into the collection equipment.

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