Wear-resistant ore pulp pipeline elbow
By setting up extension pipes in the slurry pipeline elbow and closing them with blind plates and flanges, the "mine grinding" model is formed, which solves the problem of fast wear of elbows in the slurry pipeline of coarse-particle material slurry pipelines, extends the service life and improves resistance Grinding performance.
Patent Information
- Application Number
- CN202421117089.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
In the metallurgical ore dressing industry, when the slurry pipes of coarse particulate materials are transported, the elbow part wears quickly, resulting in a short service life, increasing maintenance costs and safety risks, and may cause safety problems such as blockage and pipeline rupture.
Design an elbow of wear-resistant ore slurry pipe, and slurry pipes are slurry by setting up extension pipes, and sealing them with blind plates and flanges at the end of the extension pipes to form a "mine grinding" model to increase the wear resistance of the pipes.
It extends the service life of the elbow of the ore slurry pipeline, improves the wear resistance of the pipeline, reduces maintenance costs and safety risks, and avoids problems such as blockage and rupture.
Smart Images
Figure CN222458811U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of metallurgical ore dressing, and in particular relates to a wear-resistant ore slurry pipeline elbow. Background Art
[0002] In the metallurgical beneficiation industry, although the pipeline transportation technology of slurry is widely used, it has always faced the problem of serious pipeline wear caused by coarse material particle size, especially in the pipeline elbow. When the slurry flows through the elbow, due to the dynamic characteristics of the fluid, it will generate a large impact force and shear force on the inner wall of the elbow, resulting in rapid wear of the material in the elbow. This wear not only shortens the service life of the pipeline elbow, but also increases the operating cost of the enterprise. Frequent replacement of worn pipeline elbows not only increases maintenance costs, but also affects the continuity and stability of production. In addition, the rapid wear of pipeline elbows also increases the labor intensity of maintenance personnel. Since the worn parts are usually located inside the pipeline, maintenance personnel need to perform tedious disassembly and installation work, which not only increases working time, but also may pose a threat to the safety of maintenance personnel.
[0003] In addition, during the production process, it is often necessary to transport coarse-grained ore materials. Due to their special shape, coarse-grained ore materials are prone to blockage inside the pipeline during transportation, especially at the elbows or diameter changes of the pipeline. Due to the change in flow rate and the accumulation effect of particles, serious blockage may occur. This blockage not only affects the normal transportation of ore sand, but may also cause increased pressure in the pipeline and even cause safety problems such as pipeline rupture.
[0004] Secondly, coarse-grained ore materials will have a strong scouring effect on the inner wall of the pipeline during the flow process. This scouring will accelerate the wear of the pipeline material, especially at the protruding parts or welding parts of the inner wall of the pipeline, where the wear is more serious. Long-term scouring will cause the pipeline wall to become thinner, and may even cause perforation or fracture, seriously affecting the service life and safety of the pipeline.
[0005] Therefore, in the process of ore transportation, effective measures need to be taken to reduce particle size, optimize pipeline design, and strengthen pipeline maintenance and management to ensure safe and efficient operation of the pipeline. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a new slurry pipeline elbow to solve the problem of fast wear and short life of the elbow in the slurry pipeline transportation of coarse particle materials.
[0007] In order to solve the above problems, the technical solution adopted by the utility model is as follows:
[0008] The utility model provides a wear-resistant slurry pipeline elbow in a first aspect, the pipeline elbow comprises a slurry pipeline, an extension pipeline and a pulp removal pipeline respectively connected to the slurry pipeline, and a closing device for closing the extension pipeline, wherein the slurry pipeline is connected to the extension pipeline in a straight line and the extension pipeline is a further extension of the slurry pipeline, the slurry pipeline is connected to the pulp removal pipeline at an angle, and the slurry pipeline, the extension pipeline and the pulp removal pipeline are in a three-way structure; the end of the extension pipeline is a closed end, which is closed by the closing device; the closing device comprises: a blind plate and a flange, the blind plate closes the end of the extension pipeline, the flange is sleeved on the end of the extension pipeline, and is detachably connected to the blind plate; the blind plate comprises a wear-resistant waterproof layer and a bottom plate, the wear-resistant waterproof layer is in contact with the bottom plate and the wear-resistant waterproof layer faces the end of the extension pipeline.
[0009] In one embodiment of the utility model, the blind plate is provided with a plurality of first through holes, the flange is provided with a second through hole, the first through holes correspond to the second through holes, and the first through holes are connected to the second through holes by bolts.
[0010] In one embodiment of the utility model, the bottom plate is a rust-proof metal plate, the metal plate and the wear-resistant and waterproof layer are circular, and the radius is consistent with the flange plate of the flange.
[0011] In one embodiment of the present invention, the blind plate and the flange are connected via a rotation axis extending in a vertical direction and penetrating the first through hole and the second through hole, and the blind plate can rotate around the rotation axis.
[0012] In one embodiment of the utility model, the thickness of the metal plate is 8-12 mm, and the thickness of the wear-resistant and waterproof layer is 3-5 mm.
[0013] In one embodiment of the utility model, a waterproof and shock-absorbing reinforcement block is arranged on the outer side of the connection between the pulp supply pipe and the pulp removal pipe.
[0014] In one embodiment of the utility model, a visual inspection port is provided at the connection between the pulp supply pipe and the pulp removal pipe. The visual inspection port passes through the pipe and is covered by a transparent cover plate. An annular waterproof layer is provided at the connection between the transparent cover plate and the outer side of the pipe.
[0015] In one embodiment of the utility model, it further includes an inlet pipe which is connected to the incoming slurry pipe in a socket-type manner. The slurry enters the incoming slurry pipe through the inlet pipe. The inlet pipe is in the form of a socket, and the incoming slurry pipe is in the form of a spigot. The interior of the inlet pipe has a smooth conical surface or a threaded connection surface, and the incoming slurry pipe has a matching conical or threaded structure to form a mechanical bite with the inlet pipe.
[0016] In one embodiment of the utility model, an elastic waterproof and wear-resistant sealing ring is arranged on the outer side of the connection between the inlet pipe and the slurry pipe.
[0017] In one embodiment of the utility model, a first fastener is further provided on the outer side of the connection between the inlet pipe and the slurry supply pipe.
[0018] Beneficial effects of the utility model:
[0019] The utility model extends the incoming slurry pipeline by arranging an extension pipeline, and closes the end of the extended pipeline with a blind plate and a flange of a specific structure, so that the incoming slurry pipeline forms a "mine grinding" mode to increase the wear resistance of the pipeline. The utility model is particularly suitable for the pipeline transportation field of coarse-grained ore materials and prolongs the service life of the slurry pipeline elbow.
[0020] The utility model summarizes various aspects of the embodiment and should not be used to limit the claims. Other embodiments can be conceived based on the technology described herein, which will be obvious to those skilled in the art after studying the following drawings and specific embodiments, and these embodiments are intended to be included in the scope of the utility model.
[0021] These and other aspects, objects and features of the present invention will be understood and appreciated by those skilled in the art after studying the following specification, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] in:
[0024] Figure 1 Shown is a schematic diagram of a wear-resistant slurry pipeline elbow in some embodiments of the utility model.
[0025] Figure 2 Shown is a schematic diagram of the blind plate structure in some embodiments of the utility model.
[0026] Reference numerals
[0027] 1. Base plate; 2. Wear-resistant waterproof layer; 3. Bolts; 4. Flange; 5. Waterproof and shock-absorbing reinforcement block; 6. Slurry supply pipe; 7. Extension pipe; 8. Slurry removal pipe. DETAILED DESCRIPTION
[0028] Embodiments of the present utility model are described below. However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various alternative forms. The drawings are not necessarily drawn to scale; certain features may be exaggerated or minimized to show the details of specific components. Therefore, the specific structural and functional details disclosed in the present utility model should not be interpreted as restrictive, but merely as a representative basis for teaching those skilled in the art to use the present utility model in various ways. As will be understood by those skilled in the art, the various features shown and described with reference to any one of the drawings may be combined with the features shown in one or more other drawings to produce embodiments that are not explicitly shown or described. The combination of the features shown provides representative embodiments for typical applications. However, various combinations and modifications of features consistent with the teachings of the present utility model may be desirable for certain specific applications or embodiments.
[0029] In addition, in the present invention, relational terms such as first and second, etc. are used only to distinguish one entity or action from another entity or action, and do not necessarily require or imply any actual such relationship or order between these entities or actions. The terms "include", "comprises", or any other variation thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but may also include elements that are not explicitly listed or inherent to these processes, methods, articles, or apparatuses.
[0030] like Figure 1 As shown, the first aspect of the utility model provides a wear-resistant slurry pipeline elbow, the pipeline elbow comprises a slurry pipeline 6, an extension pipeline 7 and a deslurry pipeline 8 respectively connected to the slurry pipeline 6, and a closing device for closing the extension pipeline 7, wherein the slurry pipeline 6 is connected to the extension pipeline 7 in a straight line and the extension pipeline 7 is a further extension of the slurry pipeline 6, the slurry pipeline 6 is connected to the deslurry pipeline 8 at an angle, and the slurry pipeline 6, the extension pipeline 7 and the deslurry pipeline 8 are in a three-way structure; the end of the extension pipeline 7 is a closed end, which is closed by the closing device;
[0031] The closing device comprises: a blind plate and a flange 4, wherein the blind plate closes the end of the extension pipe 7, and the flange 4 is sleeved on the end of the extension pipe 7 and is detachably connected to the blind plate;
[0032] like Figure 2 As shown, the blind plate includes a wear-resistant waterproof layer 2 and a bottom plate 1 , the wear-resistant waterproof layer 2 is in contact with the bottom plate 1 and the wear-resistant waterproof layer 2 faces the end of the extension pipe 7 .
[0033] In some embodiments of the present invention, the wear-resistant and waterproof layer 2 is a polyurethane wear-resistant coating.
[0034] The utility model extends the pulp pipeline 6 by setting an extension pipeline 7, and closes the end of the extension pipeline 7 through a blind plate and a flange 4 with a specific structure, so that the pulp pipeline 6 forms a "mine grinding" mode to increase the wear resistance of the pipeline. It is particularly suitable for the pipeline transportation field of coarse-grained ore materials and prolongs the service life of the slurry pipeline elbow. The blind plate of the utility model is provided with a specific wear-resistant waterproof layer 2 and a bottom plate 1. The wear-resistant waterproof layer 2 is generally a polyurethane wear-resistant coating, which has elasticity and waterproofness, and can block the closed end to prevent water seepage from the closed end. In addition, its elasticity can also reduce the vibration generated in the "mine grinding" process and reduce pipeline noise.
[0035] In some embodiments of the utility model, the blind plate is provided with a plurality of first through holes, the flange 4 is provided with a second through hole, the first through holes correspond to the second through holes, and the first through holes and the second through holes are connected by bolts 3. In order to better connect the blind plate and the flange, in some embodiments, bolts 3 are usually selected to connect the blind plate and the flange to better seal the extension pipe 7, and when maintenance is required, the closed end can be better disassembled.
[0036] In some embodiments of the present invention, the bottom plate 1 is a rust-proof metal plate, the metal plate and the wear-resistant and waterproof layer 2 are circular, and the radius is consistent with the flange plate of the flange 4.
[0037] In order to prevent the loss of parts at the closed end during the maintenance process, in some embodiments of the utility model, the blind plate is connected to the flange 4 through a rotating shaft extending in the vertical direction and passing through the first through hole and the second through hole, and the blind plate can rotate around the rotating shaft. At the end of the blind plate opposite to the rotating shaft, the blind plate can be detachably connected to the flange 4 through a second fastener, and the second fastener can be a bolt or a nut. During the maintenance process, the second fastener is removed, the blind plate is rotated, and after the cleaning of the pipeline is completed, the blind plate is turned back and the second fastener is installed again to connect the blind plate and the flange 4 together. In addition, as needed, a thread can also be set at at least one end of the rotating shaft, and a nut can be connected to the thread, and the end of the blind plate provided with the rotating shaft can also be fixed.
[0038] In some embodiments of the present invention, the thickness of the metal plate is about 8-12 mm, and the thickness of the wear-resistant waterproof layer is 3-5 mm. The thickness of the rust-proof metal plate and the wear-resistant waterproof layer of the present invention is not limited to the above thicknesses, and the thickness can be designed according to the pipeline delivery pressure.
[0039] In some embodiments of the present invention, a waterproof and shock-absorbing reinforcement block 5 is provided on the outer side of the connection between the pulp supply pipe 6 and the pulp removal pipe 8. In one embodiment, Figure 1 As shown, a rubber lining is provided at the transition point between the pulp pipe and the deslurry pipe 8 as a waterproof and shock-absorbing reinforcement block 5. The rubber lining can absorb the vibration of the pipe caused by the "bending" of some coarse-grained ore materials, thereby extending the service life of the pipe.
[0040] In order to enable timely maintenance and avoid blockage caused by long-term material transportation in the pipeline, in some embodiments of the utility model, a visual inspection port is provided at the connection between the incoming slurry pipeline 6 and the deslurry pipeline 8. The visual inspection port runs through the pipeline and is covered by a transparent cover plate. An annular waterproof layer is provided at the connection between the transparent cover plate and the outside of the pipeline. The material flow in the pipeline can be observed in time through the transparent cover plate. When material blockage is observed, it can help maintenance personnel to open the closed end in time for maintenance. The annular waterproof layer can prevent material leakage from the visual inspection port.
[0041] When transporting coarse-grained ore materials, if the slurry pipeline elbow encounters a situation where the material is blocked and difficult to clear, or is damaged by external forces, in order to ensure normal production, the slurry pipeline elbow can be designed to be detachable so that it can be replaced in time when damaged. In some embodiments of the utility model, the slurry pipeline elbow further includes an inlet pipe connected to the incoming slurry pipeline 6 in a socket-type manner, and the slurry enters the incoming slurry pipeline 6 through the inlet pipe. The inlet pipe is in the form of a socket, and the incoming slurry pipeline 6 is in the form of a spigot, wherein the interior of the inlet pipe has a smooth conical surface or a threaded connection surface, and the incoming slurry pipeline 6 has a matching conical or threaded structure, forming a mechanical bite with the inlet pipe.
[0042] In some embodiments of the present invention, an elastic waterproof and wear-resistant sealing ring is provided on the outer side of the connection between the inlet pipe and the slurry pipe 6.
[0043] In some embodiments of the utility model, a first fastener is further provided outside the connection between the inlet pipe and the slurry pipe 6. The first fastener can be a clamp, which tightens the connection between the inlet pipe and the slurry pipe 6 to prevent leakage caused by thermal expansion and contraction.
[0044] In order to further illustrate the pipe elbow structure of the utility model, the preparation process of the pipe elbow of the utility model is as follows:
[0045] like Figure 1 , Figure 2 As shown in the schematic diagram of the pipeline elbow structure, a piece of iron disc is cut according to the radius of the flange 4 as the bottom plate 1, and a wear-resistant and waterproof layer 2 (polyurethane wear-resistant layer) with a thickness of about 3-5mm is coated on the bottom plate 1. Then, the connecting holes of the flange are opened, and the bottom plate 1 is fastened to the flange 4 with bolts 3 to form a buffer zone (i.e., the extended pipe 7 at the closed end). At this time, the slurry pipeline elbow is initially manufactured.
[0046] Afterwards, the buffer zone is filled with ore, and the slurry in the slurry pipe 6 impacts the accumulated ore in the buffer zone, forming a "ore grinding" mode, thereby increasing the service life of the pipeline elbow.
[0047] Specific pipe elbow structure such as Figure 1As shown, the specific production process is:
[0048] (1) Cut a piece of iron disc with a thickness of about 10 mm and a radius equal to the radius of flange 4 as the bottom plate 1 of the elbow blind plate (the thickness is determined according to the slurry conveying pressure), and coat the bottom plate 1 with a polyurethane wear-resistant layer to form a wear-resistant and waterproof layer 2 of about 3-5 mm. After the wear-resistant and waterproof layer 2 is dried, a blind plate is formed, and then the iron disc is aligned with the hole of the flange plate of flange 4 to open a hole;
[0049] (2) Fasten the blind plate to the flange 4 with bolts 3;
[0050] (3) The outlet position of the pipe elbow is determined according to the on-site installation environment;
[0051] (4) A waterproof and shock-absorbing reinforcement block 5 (such as a rubber lining) should be installed at the outlet of the pipe elbow to improve the wear resistance of this part.
[0052] It should be particularly pointed out that the various components in the above-mentioned embodiments can be crossed, replaced, added, and deleted with each other. Therefore, the combinations formed by these reasonable arrangements and combinations should also belong to the protection scope of the present utility model, and the protection scope of the present utility model should not be limited to the embodiments.
[0053] The above are exemplary embodiments disclosed by the present utility model. The order disclosed in the above embodiments of the present utility model is only for description and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope (including claims) disclosed in the embodiments of the present utility model is limited to these examples. Various changes and modifications can be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present utility model can be described or required in individual form, unless explicitly limited to the singular, they can also be understood as multiple. A skilled technician can implement the described functions in a flexible manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present utility model.
Claims
1. A wear-resistant slurry pipeline elbow, characterized in that: The pipeline elbow comprises a pulp supply pipeline (6), an extension pipeline (7) and a pulp removal pipeline (8) respectively connected to the pulp supply pipeline (6), and a closing device for closing the extension pipeline (7), wherein the pulp supply pipeline (6) and the extension pipeline (7) are connected in a straight line and the extension pipeline (7) is a further extension of the pulp supply pipeline (6), the pulp supply pipeline (6) and the pulp removal pipeline (8) are connected at an angle, and the pulp supply pipeline (6), the extension pipeline (7) and the pulp removal pipeline (8) are in a three-way structure; the end of the extension pipeline (7) is a closed end, which is closed by the closing device; The closing device comprises: a blind plate and a flange (4), wherein the blind plate closes the end of the extension pipe (7), and the flange (4) is sleeved on the end of the extension pipe (7) and is detachably connected to the blind plate; The blind plate comprises a wear-resistant waterproof layer (2) and a bottom plate (1), the wear-resistant waterproof layer (2) is in contact with the bottom plate (1) and the wear-resistant waterproof layer (2) faces the end of the extension pipe (7).
2. The wear-resistant slurry pipeline elbow according to claim 1 is characterized in that: The blind plate is provided with a plurality of first through holes, the flange (4) is provided with a second through hole, the first through holes correspond to the second through holes, and the first through holes are connected to the second through holes via bolts (3).
3. The wear-resistant slurry pipeline elbow according to claim 2 is characterized in that: The bottom plate (1) is a rust-proof metal plate, and the metal plate and the wear-resistant and waterproof layer (2) are circular, and the radius is consistent with the flange plate of the flange (4).
4. The wear-resistant slurry pipeline elbow according to claim 3 is characterized in that: The blind plate and the flange (4) are connected via a rotation axis extending in a vertical direction and penetrating the first through hole and the second through hole, and the blind plate can rotate around the rotation axis.
5. The wear-resistant slurry pipeline elbow according to claim 3 is characterized in that: The thickness of the metal plate is 8 to 12 mm, and the thickness of the wear-resistant and waterproof layer (2) is 3 to 5 mm.
6. The wear-resistant slurry pipeline elbow according to claim 3 is characterized in that: A waterproof and shock-absorbing reinforcement block (5) is arranged on the outer side of the connection between the pulp supply pipe (6) and the pulp removal pipe (8).
7. The wear-resistant slurry pipeline elbow according to claim 3 is characterized in that: A visual inspection port is provided at the connection between the pulp supply pipe (6) and the pulp removal pipe (8), the visual inspection port passes through the pipe and is covered by a transparent cover plate, and an annular waterproof layer is provided at the connection between the transparent cover plate and the outside of the pipe.
8. The wear-resistant slurry pipeline elbow according to claim 3, characterized in that: It further comprises an inlet pipe connected to the pulp pipe (6) in a socket-type manner, through which the slurry enters the pulp pipe (6), the inlet pipe is in the form of a socket, and the pulp pipe (6) is in the form of a spigot, wherein the interior of the inlet pipe has a smooth conical surface or a threaded connection surface, and the pulp pipe (6) has a matching conical or threaded structure to form a mechanical bite with the inlet pipe.
9. The wear-resistant slurry pipeline elbow according to claim 8, characterized in that: An elastic waterproof and wear-resistant sealing ring is arranged on the outside of the connection between the inlet pipe and the slurry supply pipe (6).
10. The wear-resistant slurry pipeline elbow according to claim 8, characterized in that: A first fastener is also provided on the outside of the connection between the inlet pipe and the slurry supply pipe (6).