Wear-resistant ore discharging funnel structure

Abstract

The utility model belongs to the field of magnetite production, and particularly relates to a wear-resistant ore discharging funnel structure. The funnel main body comprises a bottom wall and a peripheral wall, the bottom wall and the peripheral wall form a cavity of the funnel, the peripheral wall comprises an outer wall and an inner wall, and the inner wall is made of a magnetic material. According to the anti-abrasion ore discharging funnel, the inner wall is replaced by the magnetic material, magnetite can be tightly adsorbed on the lining plate, an adsorption protection layer is formed, and after the protection layer reaches a certain thickness, direct impact and abrasion are not generated between the magnetic lining plate and moving minerals any more, so that the abrasion speed of the magnetic lining plate is reduced, and the service life of the magnetic lining plate is prolonged. And the service life of the magnetic lining plate is greatly prolonged. And the protective layer is always in dynamic balance of abrasion and supplement, so that the effect of permanently protecting the magnetic lining plate and the ore discharging funnel is achieved, the impact and abrasion of ore or ore pulp to the inner wall of the funnel can be effectively reduced, the service life of the funnel is remarkably prolonged, and the overall operation efficiency of equipment is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the field of magnetite production, and in particular relates to a wear-resistant ore drain structure. Background Art

[0002] As one of the core equipment for production and operation in the fields of mining, metallurgy, and chemical industry, the ore drain plays a vital role in key links such as the head of the belt conveyor, the discharge system of the mill, the ore separation box of the magnetic separator, the overflow box of the cyclone, and the sand settling box. These devices are responsible for guiding the ore or slurry from a high altitude to the subsequent transportation or processing system smoothly and efficiently to ensure the smooth progress of the entire production process. However, although wear-resistant materials are widely used in the design and manufacturing of ore drains, due to the particularity of their working environment and the extreme physical loads they bear, there are still many problems that need to be solved in the existing technology, especially the short service life caused by non-wear resistance and the decline in equipment stability.

[0003] First, the ore drain faces continuous and high-speed impact from ore or slurry in actual operation. Ore usually contains hard mineral particles with a wide distribution of particle sizes. The large particles generate huge kinetic energy during free fall, which directly acts on the inner wall of the drain, causing significant impact wear. In addition, the slurry flow also carries fine abrasive particles during the flow process, forming abrasive wear. This dual wear mechanism causes serious loss of the inner wall material of the ore drain in a short period of time, which not only affects its own structural integrity, but may also cause deep damage such as metal fatigue and crack expansion, further shortening the service life of the drain.

[0004] Secondly, the wear resistance of existing mine drains often depends on the properties of the materials used, such as high-strength and high-hardness materials such as manganese steel and high-chromium cast iron. Although these materials have improved wear resistance to a certain extent, the wear resistance of a single material is limited by the complex and changeable ore characteristics and high-impact working conditions. Especially when processing magnetic minerals such as magnetite, the magnetic attraction between the ore and the inner wall of the drain may cause the ore to gather in a specific area, forming local high-wear hotspots and accelerating the loss of the inner wall material. In addition, the processing cost of traditional wear-resistant materials is high. Once they need to be replaced, it will not only increase maintenance costs, but also lead to longer production line downtime, affecting overall production efficiency.

[0005] In addition, the structural design of existing ore chutes mostly focuses on meeting basic functions of guiding flow and bearing, lacking targeted anti-impact and anti-wear designs. For example, the common smooth inner wall design is beneficial for reducing the flow resistance of ore, but it cannot effectively disperse and absorb impact energy when dealing with high-speed impacts, resulting in increased wear. Although some ore chutes are equipped with simple guide plates or grilles, their layouts and forms are often relatively single, making it difficult to adapt to changes in different ore particle sizes, densities, and flow rates, and it is difficult to effectively regulate the impact force.

[0006] In summary, the existing ore chutes have obvious deficiencies in terms of wear resistance, adaptability, and structural design. These problems directly shorten the service life of the ore chutes, increase the maintenance cost of the ore chutes, and further affect the poor stability of the entire equipment, thus affecting the operating efficiency and economic benefits of the entire production system. Therefore, developing a new type of ore chute that can effectively resist the impact of ore or pulp, extend the service life, and improve the equipment stability is of great significance for optimizing the production process, reducing costs, and ensuring safe production.

[0007] There is an urgent need to design an ore chute structure that can fundamentally improve the wear resistance of existing ore chutes and ensure their durable and efficient operation under harsh working conditions. Summary of the Utility Model

[0008] The technical problem to be solved by the present utility model is: to provide a wear-resistant ore chute structure that can greatly increase its service life.

[0009] To solve the above problems, the technical solution adopted by the present utility model is as follows:

[0010] The first aspect of the present utility model provides a wear-resistant ore chute structure. The chute main body includes a bottom wall and a peripheral wall. The bottom wall and the peripheral wall form the cavity of the chute. The peripheral wall includes an outer wall and an inner wall, and the inner wall is made of a magnetic material.

[0011] In some embodiments of the present utility model, the cavity has a cross-sectional shape of U-shaped, V-shaped, or U-shaped.

[0012] In some embodiments of the present utility model, the inner wall is provided with multiple groups of magnetic protrusions arranged longitudinally and / or horizontally.

[0013] In some embodiments of the present utility model, one or more vibrators are provided on the outer side of the outer wall, and the vibrator is detachably connected to the outer wall.

[0014] In some embodiments of the present utility model, the magnetic intensity of the inner wall increases along the direction from the opening part of the cavity to the bottom wall.

[0015] In some embodiments of the present invention, the inner wall includes a plurality of magnetic lining plates with different magnetic induction strengths, the magnetic poles of adjacent magnetic lining plates are opposite, and the magnetic lining plates include rectangles or mutually embedded polygons.

[0016] In some embodiments of the present invention, the background field strength of the inner wall ranges from 1000 Gs to 4500 Gs.

[0017] In some embodiments of the present invention, a waterproof and rust-proof isolation layer is provided between the outer wall and the inner wall.

[0018] In some embodiments of the present invention, a buffer layer for absorbing vibration energy is provided between the outer wall and the inner wall.

[0019] In some embodiments of the present invention, the inner wall is provided with one of a guide plate, a baffle or a grille.

[0020] Beneficial effects of the utility model: The wear-resistant ore drain structure of the utility model replaces the inner wall with magnetic material, which can tightly adsorb magnetite on the lining plate to form an adsorption protection layer. When the protective layer reaches a certain thickness, there is no direct impact and abrasion between the magnetic material and the moving material (mineral or slurry), thereby reducing the wear rate of the inner wall of the magnetic material and greatly extending the service life of the inner wall of the magnetic material. The protective layer is always in a dynamic balance between wear and replenishment, playing a role in permanently protecting the magnetic lining and the ore drain, and can more effectively reduce the impact and wear of ore or slurry on the inner wall of the drain, thereby significantly improving the service life of the drain and the overall operating efficiency of the equipment.

[0021] 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.

[0022] 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

[0023] 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.

[0024] in:

[0025] Figure 1 Shown is the structure of the mine drain in some embodiments of the utility model.

[0026] Reference numerals

[0027] 1. Outer wall; 2. Inner wall; 3. Material. 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, the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but may also include elements not explicitly listed or inherent to these processes, methods, articles or apparatuses.

[0030] The material in the utility model is magnetic ore or ore pulp, which is suitable for application scenarios where the maximum particle size of the ore or ore pulp is less than 60 mm.

[0031] like Figure 1As shown in the figure, the first aspect of the present utility model provides a wear-resistant ore-dropping hopper structure. The hopper body includes a bottom wall and a peripheral wall. The bottom wall and the peripheral wall form the cavity of the hopper. The peripheral wall includes an outer wall and an inner wall 2, and the inner wall 2 is made of a magnetic material. The wear-resistant ore-dropping hopper structure of the present utility model replaces the inner wall 2 with a magnetic material, which can tightly adsorb magnetite on the lining plate, forming an adsorption protection layer. When the protection layer reaches a certain thickness, there is no longer direct impact and abrasion between the magnetic material and the moving material 3 (minerals or pulp), thereby reducing the wear rate of the inner wall 2 of the magnetic material and greatly extending the service life of the inner wall 2 of the magnetic material. The protection layer is always in a dynamic balance of wear and replenishment, playing a role in permanently protecting the magnetic lining plate and the ore-dropping hopper, and can more effectively reduce the impact and wear of the ore or pulp on the inner wall 2 of the hopper, thereby significantly improving the service life of the hopper and the overall operation efficiency of the equipment.

[0032] The magnetic material of the present utility model can be a permanent magnet or an electromagnet.

[0033] In some embodiments of the present utility model, the cavity of the ore-dropping hopper has a U-shaped, V-shaped or U-shaped cross-sectional shape. For better transportation of the pulp, the bottom wall of the ore-dropping hopper of the present utility model has a hollow structure.

[0034] In order to guide the falling path of the magnetic ore and prevent the ore from directly "breaking" the hopper, in some embodiments of the present utility model, the inner wall 2 is provided with multiple groups of longitudinal and / or transverse magnetic protrusions to guide the ore to fall along a tortuous path, reduce the impact speed and reduce wear.

[0035] In some embodiments of the present utility model, the outer wall 1 is a magnetic metal, such as stainless steel, or other alloys that can be attracted by a magnet. The magnetic material of the inner wall 2 is a magnet or other magnetic structures.

[0036] In some embodiments of the present utility model, one or more vibrators are provided on the outer side of the outer wall 1, and the vibrators are detachably connected to the outer wall. The function of setting the vibrators is to generate high-frequency micro-vibrations during the falling process of the ore or pulp, promote the dispersion of the ore, avoid concentrated impact, and at the same time promote the dynamic update of the magnetic protection layer formed by the material 3, and slow down the wear of the lining plate.

[0037] The present utility model adopts a gradient magnetization design. In some embodiments of the present utility model, the magnetic intensity of the inner wall 2 gradually increases along the direction from the opening of the cavity to the bottom wall, so that the ore or pulp is gradually adsorbed during the falling process, effectively dispersing the impact force and reducing wear.

[0038] In some embodiments of the utility model, the inner wall 2 includes a plurality of magnetic lining plates with different magnetic induction strengths, the magnetic poles of the adjacent magnetic lining plates are opposite, and the magnetic lining plates include rectangular or mutually interlocking polygons. The magnetization structure on the inner wall 2 of the utility model adopts a relative layout of opposite poles, and the magnetic poles of adjacent magnetic blocks are opposite, so that the material 3 (ore or slurry) will roll and slide under the action of the magnetic field during the falling process, rather than directly impact, thereby reducing the impact wear on the lining plate.

[0039] In some embodiments of the present invention, the background field strength of the inner wall 2 ranges from 1000 Gs to 4500 Gs.

[0040] During the use of the leak of the utility model, if the outer wall 1 is rusted, the inner wall 2 is very easy to fall off. In order to prevent the outer wall 1 from rusting, in some embodiments of the utility model, a waterproof and rust-proof isolation layer is provided between the outer wall 1 and the inner wall 2. The waterproof and rust-proof isolation layer can be a waterproof paint or a dense oxide layer.

[0041] In some embodiments of the utility model, a buffer layer for absorbing vibration energy is provided between the outer wall 1 and the inner wall 2. The buffer layer can be a rubber material with an elastic structure, which can absorb the impact energy of the magnetic ore, reduce the direct impact force borne by the outer shell and the inner wall 2, and reduce wear.

[0042] In some embodiments of the present invention, the inner wall 2 is provided with one of a guide plate, a baffle or a grille. The guide plate, the baffle or the grille can guide the movement track of the ore and further reduce the wear of the inner wall 2.

[0043] The utility model is not only applicable to ore drains, but also can be applied to ore separation boxes (such as magnetic separator feed boxes, cyclone overflow boxes and sand settling boxes, etc.).

[0044] 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.

[0045] 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 mine drain structure, characterized in that: The funnel body includes a bottom wall and a peripheral wall. The bottom wall and the peripheral wall form the cavity of the funnel. The peripheral wall includes an outer wall (1) and an inner wall (2), and the inner wall (2) is made of a magnetic material.

2. The wear-resistant mine drain structure according to claim 1 is characterized in that: The cavity has a cross-sectional shape of U-shaped, V-shaped or U-shaped.

3. The wear-resistant mine drain structure according to claim 1 is characterized in that: The inner wall (2) is provided with multiple groups of magnetic protrusions arranged longitudinally and / or transversely.

4. The wear-resistant mine drain structure according to claim 1 is characterized in that: One or more vibrators are provided on the outer side of the outer wall (1), and the vibrator is detachably connected to the outer wall.

5. The wear-resistant mine drain structure according to claim 1, characterized in that: The magnetic intensity of the inner wall (2) gradually increases in the direction from the opening of the cavity to the bottom wall.

6. The wear-resistant mine drain structure according to claim 1, characterized in that: The inner wall (2) includes multiple magnetic liners with different magnetic induction intensities, and the magnetic poles of adjacent magnetic liners are opposite. The magnetic liners include rectangles or polygons that fit together.

7. The wear-resistant mine drain structure according to claim 1, characterized in that: The background magnetic field strength range of the inner wall (2) is from 1000 Gs to 4500 Gs.

8. The wear-resistant mine drain structure according to claim 1, characterized in that: A waterproof and rust-proof isolation layer is provided between the outer wall (1) and the inner wall (2).

9. The wear-resistant mine drain structure according to claim 1, characterized in that: A buffer layer for absorbing vibration energy is provided between the outer wall (1) and the inner wall (2).

10. The wear-resistant mine drain structure according to claim 2, characterized in that: The inner wall (2) is provided with one of a flow guide plate, a baffle or a grille.

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