Path mechanism of middling grade return channel
By using spring steering and speed reduction components in the middlings return channel, the problem of pipe elbow wear caused by high middlings flow velocity was solved, thus improving the durability and economy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG PROVINCE DABAOSHAN MINING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-19
AI Technical Summary
During the return process, the high flow rate caused wear and frequent replacement of pipeline bends, especially at the bends. Existing rubber bends are prone to deformation or bursting, resulting in high maintenance costs.
The system employs a spring-driven steering component and a speed-reducing component. The spring-driven steering component reduces the impact force of the liquid and absorbs the impact energy through the elastic deformation of the spring. Combined with the inclined plate and baffle, the flow direction is adjusted. The speed-reducing component slows down the flow velocity through the deceleration plate to prevent direct impact.
It effectively reduces wear on pipe bends, lowers maintenance frequency and costs, and extends equipment lifespan.
Smart Images

Figure CN224252968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral processing technology, specifically to a path mechanism for a middlings grade return channel. Background Technology
[0002] In the mineral sorting process, the treatment of middlings (i.e., substandard materials with grades between concentrate and tailings) is a key step in improving resource recovery. Typically, middlings need to be returned to previous processes (such as roughing, scavenging, or regrinding) for further processing, and the liquid is returned to the previous stage through pipelines.
[0003] Compared to pure liquids, middlings typically contain a certain amount of slurry or particles. At higher flow rates, these particles impact the inner wall of the pipe at a certain angle, causing the surface material to gradually peel off. This is especially true at bends, where the high velocity on the inner side and the low velocity on the outer side of the mixed mineral liquid create secondary flow, further reducing the bend's lifespan. Current technology uses rubber bends to replace existing bends; however, rubber bends are limited by material properties and structure, making them prone to plastic deformation and even bursting, while also incurring higher maintenance costs. Utility Model Content
[0004] The purpose of this utility model is to provide a path mechanism for a mid-grade ore return channel to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:
[0005] The fixed components include a flotation machine, a pipe connected to one side of the flotation machine, an elbow fixedly connected between the pipes, and a ball mill connected to the pipes;
[0006] A spring steering component, comprising a cleaning port in the middle of the bend, a sealing cover threaded to the cleaning port, a U-shaped plate connected inside the cleaning port, a fixing ring fixed to the U-shaped plate, a fixing post fixed to the U-shaped plate, a first spring connected to the middle of the fixing ring, a baffle connected to the other end of the first spring, and a protective rubber sleeved on the outside of the first spring.
[0007] Furthermore, there are several springs, and each spring has a retaining ring connected to both ends.
[0008] Furthermore, the spring steering component also includes a bottom ring fixed to one side of the baffle, a pressure rod passing through the middle of the bottom ring, a second spring fitted on the pressure rod, a nut threaded to the outside of the pressure rod, and a protective soft shell fitted on the outside of the spring. The outer end of the pressure rod is beveled, which corresponds exactly to the interface position.
[0009] Furthermore, the spring steering component also includes a ramp screwed to one side of the baffle, a hinge connecting the baffle and the ramp, and an interface fixed to the bottom surface of the ramp.
[0010] Furthermore, the hinge is connected to the upper side of the baffle and the ramp.
[0011] Furthermore, it also includes a speed-reducing component, which includes a deceleration plate disposed at the pipe opening, a support rod vertically fixed in the middle of the deceleration plate, a fixing head fixed at the end of the support rod, a crossbar vertically passing through and fixed in the middle of the fixing head, and a support ring fitted and fixed inside the pipe.
[0012] Furthermore, the deceleration plate has a large opening at its edge and a small opening in the middle, and the support ring has an inverted triangular edge.
[0013] This invention has the following beneficial effects: When a liquid containing mixed minerals passes through a bend quickly, the inertia causes a strong impact on the bend. The spring-loaded steering component directs the liquid, causing it to impact the baffle. The first spring under the baffle is compressed, reducing the impact force caused by inertia and preventing the liquid from directly rubbing against the bend. At the same time, the inclined baffle provides a steering force for the liquid, reducing the impact. The cleaning port connected below the spring helps to clear any blockages that may occur at the bend. Meanwhile, the inclined plate on the side of the baffle helps to deflect the liquid. When the impact force is large, the inclined plate is pushed, causing the second spring to compress and increasing the steering surface. When the impact force decreases, the inclined plate springs back, increasing the tilting force and aiding in the steering.
[0014] This invention reduces wear caused by water flow impacting the pipe by incorporating a buffer spring component, thereby minimizing economic losses due to frequent elbow replacements. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the elbow structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the speed reduction component of this utility model;
[0019] Figure 4 This is a top view of the spring steering component of this utility model;
[0020] Figure 5 This is a bottom view of the spring steering component of this utility model;
[0021] Figure 6 This is a schematic diagram of the relevant structure of the second spring of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 10. Flotation machine; 11. Pipeline; 12. Elbow; 13. Ball mill; 20. Cleaning port; 21. Sealing cover; 22. U-shaped plate; 23. Fixing ring; 24. Fixing column; 25. First spring; 26. Baffle; 27. Protective rubber; 28. Inclined plate; 29. Hinge; 291. Interface; 30. Bottom ring; 31. Pressure rod; 32. Second spring; 33. Nut; 34. Protective soft shell; 40. Deceleration plate; 41. Support rod; 42. Fixing head; 43. Crossbar; 44. Support ring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] Please see Figure 1-6 As shown, this utility model is a path mechanism for a mid-grade ore return channel, comprising:
[0027] The fixed components include a flotation machine 10, a pipe 11 connected to one side of the flotation machine 10, an elbow 12 fixedly connected between the pipes 11, and a ball mill 13 connected to the pipes 11.
[0028] The spring steering component includes a cleaning port 20 opened in the middle of the bend 12, a sealing cover 21 threaded to the cleaning port 20, a U-shaped plate 22 connected inside the cleaning port 20, a fixing ring 23 fixed to the U-shaped plate 22, a fixing post 24 fixed to the U-shaped plate 22, a first spring 25 connected in the middle of the fixing ring 23, a baffle 26 connected to the other end of the first spring 25, and a protective rubber 27 sleeved on the outside of the first spring 25.
[0029] Flotation machine 10 is the core equipment for mineral processing. It separates middlings through flotation, causing valuable minerals to float on bubbles and separate from gangue. Pipeline 11 is the material transmission channel, connecting flotation machine 10, elbow 12, ball mill 13, and other equipment. Elbow 12 is used to change the flow direction of materials in pipeline 11. Ball mill 13 is used to regrind middlings to improve the liberation degree of mineral monomers, so that they can be returned to the flotation process for further recovery of valuable components. Cleaning port 20 is used to periodically clean the accumulated material, impurities, or wear residue in elbow 12 to prevent pipeline 11 from becoming blocked and maintain flow efficiency. Sealing cover 21 is used to seal cleaning port 20 to prevent slurry leakage or air from entering pipeline 11 and to ensure stable system pressure. U-shaped plate 22 serves as the support frame for spring steering component. Fixed ring 23 fixes one end of first spring 25, providing a support point for the spring. First spring 25 achieves flexible control of material steering, avoiding rigid impact that causes equipment wear. When the impact force decreases, the spring pushes baffle 26 to reset. The elastic structure prevents large pieces of material from getting stuck, and the movement of the baffle 26 assists in clearing blockages. The fixing column 24 is used to fix the position of the U-shaped plate 22 within the elbow 12, or to assist in supporting the movement trajectory of the baffle 26, ensuring structural stability. The protective rubber 27 prevents slurry from seeping into the spring, preventing particles in the slurry from wearing down the spring and extending its service life.
[0030] There are several springs, and each spring has a retaining ring 23 connected to both ends;
[0031] Multiple springs connected in parallel enhance the buffering effect and structural stability. Baffle 26 is used for guiding and diverting the flow; by adjusting the angle of baffle 26 through the elastic action of the springs, the flow direction of the material within the elbow 12 is changed.
[0032] The spring steering component also includes a bottom ring 30 fixed to one side of the baffle 26, a pressure rod 31 passing through the middle of the bottom ring 30, a second spring 32 fitted on the pressure rod 31, a nut 33 threaded to the outside of the pressure rod 31, and a protective soft shell 34 fitted on the outside of the spring. The outer end of the pressure rod 31 is beveled, which corresponds exactly to the position of the interface 291.
[0033] The bottom ring 30 serves as a support base for the pressure rod 31, fixing the position of the second spring 32 and transmitting the pressure of the pressure rod 31 to the baffle 26. The pressure rod 31 pushes the pressure rod 31 to move along the bottom ring 30, compressing or releasing the second spring 32; the second spring 32 enhances the baffle 26's adaptability to material impact forces. The nut 33 locks the spring position; the protective soft shell 34 protects the second spring 32 from slurry corrosion or particle abrasion, while reducing noise generated by spring vibration.
[0034] The spring steering component also includes a ramp 28 screwed to one side of the baffle 26, a hinge 29 connecting the baffle 26 and the ramp 28, and an interface 291 fixed to the bottom surface of the ramp 28;
[0035] Hinge 29 connects to the upper side of baffle 26 and ramp 28;
[0036] The inclined plate 28 can rotate around the hinge 29 to change the angle of the material impact surface and optimize the steering effect. The hinge 29 is used to connect the baffle 26 and the inclined plate 28, and the interface 291 is used to dock the pressure bar 31.
[0037] Working principle: When the liquid containing mixed minerals passes through the bend quickly, the inertia generates a strong impact on the bend 12. The spring-loaded steering component deflects the liquid, causing it to impact the baffle 26. The first spring 25 under the baffle 26 is compressed, reducing the impact force of the liquid due to inertia and preventing the liquid from directly rubbing against the bend 12. At the same time, the inclined baffle 26 provides a steering force for the liquid, reducing the impact. The cleaning port 20 connected below the spring helps to clear any blockages that may occur at the bend 12. Meanwhile, the inclined plate 28 on the side of the baffle 26 helps to deflect the liquid. When the impact force is large, the inclined plate 28 is pushed, causing the second spring 32 to compress, increasing the steering surface. When the impact force decreases, the inclined plate 28 springs back, increasing the tilting force and helping to deflect.
[0038] This solution reduces wear caused by water flow impacting pipe 11 by using a buffer spring component, thereby reducing economic losses caused by frequent replacement of elbow 12.
[0039] Please see Figure 1-6 As shown, this embodiment, based on the above embodiment, further includes:
[0040] The deceleration component includes a deceleration plate 40 installed at the inlet of the pipe 11, a support rod 41 vertically fixed in the middle of the deceleration plate 40, a fixing head 42 fixed at the end of the support rod 41, a crossbar 43 vertically passing through and fixed in the middle of the fixing head 42, and a support ring 44 fitted and fixed inside the pipe 11.
[0041] The deceleration plate 40 reduces the material flow rate, and the support rod 41 transmits the force to the fixed head 42 and the crossbar 43 to ensure the stability of the deceleration plate 40 within the pipe 11. The fixed head 42 is used to fix the position of the deceleration plate 40 and is connected to the support ring 44 on the inner wall of the pipe 11 through the crossbar 43 to form a rigid support structure; the crossbar 43 is used to enhance the impact resistance of the deceleration plate 40 and prevent it from deforming due to material impact; the support ring 44 provides circumferential support for the deceleration plate 40 to ensure the overall stability of the deceleration component.
[0042] The deceleration plate 40 has a large opening at the edge and a small opening in the middle, while the support ring 44 has an inverted triangular edge.
[0043] The deceleration plate 40, with its structure of a large opening at the edge and a small opening in the middle, creates a throttling effect as the slurry flows through, reducing the flow velocity and preventing high-speed impact on the equipment. The inverted triangle shape prevents material from accumulating at the edge and causing blockages.
[0044] Working principle: A speed-reducing component is installed inside the pipe 11 to reduce the liquid flow rate while ensuring that the transport is not blocked. The slow plate 40 has a large opening at the edge and a small opening in the middle to reduce the liquid flow rate while preventing blockage by minerals. The liquid impacts the slow plate 40, the support rod 41 supports the slow plate 40, and the crossbar 43 and support ring 44 are used to fix the slow plate 40 firmly on the pipe 11.
[0045] This solution reduces the water velocity in advance, further preventing the liquid from impacting elbow 12.
[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A path mechanism for a mid-grade ore return channel, characterized in that, include: The fixed components include a flotation machine (10), a pipe (11) connected to one side of the flotation machine (10), an elbow (12) fixedly connected between the pipes (11), and a ball mill (13) connected to the pipes (11). The spring steering component includes a cleaning port (20) in the middle of the bend (12), a sealing cover (21) threaded to the cleaning port (20), a U-shaped plate (22) connected inside the cleaning port (20), a fixing ring (23) fixed on the U-shaped plate (22), a fixing post (24) fixed on the U-shaped plate (22), a first spring (25) connected in the middle of the fixing ring (23), a baffle (26) connected to the other end of the first spring (25), and a protective rubber (27) sleeved on the outside of the first spring (25).
2. The path mechanism of the middlings grade return channel according to claim 1, characterized in that: There are several springs, and each spring is connected to a retaining ring (23) at both ends.
3. The path mechanism of the middlings grade return channel according to claim 1, characterized in that: The spring steering component also includes a bottom ring (30) fixed to one side of the baffle (26), a pressure rod (31) passing through the middle of the bottom ring (30), a second spring (32) fitted on the pressure rod (31), a nut (33) threaded to the outside of the pressure rod (31), and a protective soft shell (34) fitted on the outside of the spring. The outer end of the pressure rod (31) is beveled, which corresponds exactly to the position of the interface (291).
4. The path mechanism of the middlings grade return channel according to claim 1, characterized in that: The spring steering component also includes a ramp (28) screwed to one side of the baffle (26), a hinge (29) connecting the baffle (26) and the ramp (28), and an interface (291) fixed to the bottom surface of the ramp (28).
5. The path mechanism of the middlings grade return channel according to claim 4, characterized in that: The hinge (29) is connected to the upper side of the baffle (26) and the ramp (28).
6. The path mechanism of a middlings grade return channel according to claim 1, characterized in that: It also includes a speed-reducing component, which includes a slowing plate (40) set at the opening of the pipe (11), a support rod (41) vertically fixed in the middle of the slowing plate (40), a fixing head (42) fixed at the end of the support rod (41), a crossbar (43) vertically passing through and fixed in the middle of the fixing head (42), and a support ring (44) fitted and fixed inside the pipe (11).
7. The path mechanism of a middlings grade return channel according to claim 6, characterized in that: The slowing plate (40) has a large opening at the edge and a small opening in the middle, and the support ring (44) has an inverted triangle edge.