A wear-resistant chute that is easy to install and replace

Abstract

The utility model discloses a wear -resisting chute convenient to installation and replacement belongs to chute technical field, the utility model discloses a chute body, the chute body is steel structure U type groove body, and the both sides of its top portion are equipped with the flange edge of horizontal extension, and the inside of chute body is provided with wear -resisting metal sheet, and wear -resisting metal sheet is detachably fixed in flange edge through bolt subassembly, and wear -resisting metal sheet is stainless steel sectional type splicing structure, and every section left side is equipped with wide trapezoidal interface, and right side is equipped with narrow trapezoidal interface, and the outside width of wide trapezoidal interface is 6mm than the outside width of narrow trapezoidal interface, and the inside wall of wear -resisting metal sheet is covered with natural rubber coating below 200mm area from the top, and the edge of wide trapezoidal interface is reserved 100mm width no -coating area, the utility model has the advantages of wear -resisting, long service period, light weight, small, and the advantage that replacing is fast.

Description

Technical Field

[0001] This utility model relates to the field of chute technology, specifically to a wear-resistant chute that is easy to install and replace. Background Technology

[0002] Sluices are widely used in the transportation of slurry materials in various mines. Under conditions of elevation difference, slurry is generally transported by gravity using sluices, which is safe, stable, and requires no power. For example, in mineral processing plants, slurry after crushing and grinding is mainly transported from one process (such as a ball mill) to the next process (such as a flotation machine or classifier).

[0003] Because production is continuous, the slurry constantly wears down the inner walls of the chute during its flow, especially when transporting irregularly shaped, coarse-grained slurry, where wear is accelerated. Currently, concentrators typically line the inner walls of the chute with replaceable wear-resistant materials, such as cast stone slabs. However, these materials require replacement after production has stopped, and also require a certain amount of maintenance time, impacting production efficiency. Fallen wear-resistant materials are not easily detected in time, easily leading to blockages and overflows in downstream chutes. By the time the material spills out significantly, it is often not discovered, resulting in serious production accidents. Some wear-resistant materials even flow into the next process equipment, causing damage to downstream equipment. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant chute that is easy to install and replace, and has the advantages of being wear-resistant, having a long service life, being lightweight, small in size, and quick to replace, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wear-resistant chute that is easy to install and replace includes a chute body, which is a steel U-shaped trough with horizontally extending flanges on both sides of its top. A wear-resistant metal plate is installed inside the chute body. The wear-resistant metal plate is detachably fixed to the flanges by bolt assembly. The wear-resistant metal plate is a segmented splicing structure of stainless steel. Each segment has a wide trapezoidal interface on the left and a narrow trapezoidal interface on the right. The outer width of the wide trapezoidal interface is 6mm larger than that of the narrow trapezoidal interface. The area of ​​the inner wall of the wear-resistant metal plate below 200mm from the top is covered with a natural rubber coating, and a 100mm wide uncoated area is reserved at the edge of the wide trapezoidal interface.

[0007] Preferably, the sidewall thickness of the chute body is 8mm, and transverse reinforcing ribs are provided at the bottom every 1.5m.

[0008] Preferably, the wear-resistant metal plate is made of Hardox 450 steel plate, with a single section length of 750mm.

[0009] Preferably, the mating gap between the wide trapezoidal interface and the narrow trapezoidal interface is ≤0.2mm.

[0010] Preferably, the bolt assembly comprises countersunk M12 stainless steel bolts arranged in two staggered rows at 300mm intervals along the chute body.

[0011] Preferably, a threaded hole is provided on the flange edge, and an EPDM sealing ring is embedded in the threaded hole.

[0012] Preferably, the natural rubber coating has a thickness of 10 mm and contains 20% silicon carbide particles with a particle size of 0.5-1 mm.

[0013] Preferably, the wear-resistant metal plate extends 100mm above the chute body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention provides a wear-resistant chute that is easy to install and replace. The chute body contains wear-resistant metal plates connected by bolts. The chute body does not directly contact the slurry, thus avoiding wear and eliminating the need for replacement. The wear-resistant metal plates are manufactured in sections with a slightly trapezoidal plane. During installation, each section is pressed together from left to right, eliminating the need for welding. The interior of the wear-resistant metal plates is uniformly coated with natural rubber, making them lightweight, wear-resistant, and extending their service life while reducing replacement frequency. In production, the wear-resistant metal plates and the rubber-coated sections can be used as spare parts, allowing for quick disassembly and replacement, significantly reducing the impact on production. Attached Figure Description

[0016] Figure 1 This is a left view of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a plan view of the connection of the wear-resistant metal plate of this utility model;

[0019] Figure 4 This is an isometric view of the chute body of this utility model;

[0020] Figure 5 This is an isometric drawing of the wear-resistant metal plate of this utility model.

[0021] In the diagram: 1. Chute body; 2. Wear-resistant metal plate; 3. Natural rubber coating; 4. Bolt assembly; 5. Flange edge; 6. Wide trapezoidal interface; 7. Narrow trapezoidal interface; 8. Threaded hole; 9. Uncoated area. Detailed Implementation

[0022] 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.

[0023] To address the problems of poor wear resistance, short service life, and inconvenient replacement in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-5 ;

[0024] A wear-resistant chute that is easy to install and replace includes a chute body 1, which is a steel U-shaped trough with horizontally extending flanges 5 on both sides of its top. Threaded holes 8 are opened on the flanges 5, which provide an installation reference surface for the wear-resistant metal plate 2. The width of the chute body 1 is 500mm, 600mm or 700mm, the side wall thickness is 8mm, and transverse reinforcing ribs are provided at the bottom every 1.5m to prevent deformation of the bottom plate of the chute body 1 caused by slurry impact.

[0025] The chute body 1 is equipped with a wear-resistant metal plate 2. The wear-resistant metal plate 2 is detachably fixed to the flange edge 5 by bolt assembly 4. The wear-resistant metal plate 2 is a stainless steel segmented splicing structure, with each segment having a standard length of 750mm. The wear-resistant metal plate 2 is made of Hardox450 wear-resistant steel plate.

[0026] The wear-resistant metal plate 2 is in the shape of a micro-trapezoidal plate. The left side of the wear-resistant metal plate 2 is a wide trapezoidal interface 6, and the right side of the wear-resistant metal plate 2 is a narrow trapezoidal interface 7. The outer width of the wide trapezoidal interface 6 is 6mm wider than the outer width of the narrow trapezoidal interface 7, which is the thickness of the two layers of wear-resistant metal plates 2. The narrow trapezoidal interface 7 is inserted into the wide trapezoidal interface 6 of the adjacent wear-resistant metal plate 2, so that the adjacent wear-resistant metal plates 2 can be connected without welding. The interface gap is ≤0.2mm to prevent slurry from seeping in.

[0027] The upper edge of the wear-resistant metal plate 2 is 100mm higher than the top of the chute body 1, and the 100mm higher structure of the wear-resistant metal plate 2 above the chute body 1 forms an installation handle.

[0028] Bolt assembly 4 includes countersunk M12 stainless steel bolts. Countersunk bolts prevent eddies from forming when the slurry flows. They are arranged in two staggered rows at 300mm intervals along the longitudinal direction of the chute body 1. Sealing rings are embedded in the bolt holes.

[0029] The inner surface of the wear-resistant metal plate 2 is uniformly covered with a natural rubber coating 3 with a coating thickness of 10mm. The coverage of the natural rubber coating 3 meets the following requirements: the area below 200mm from the top of the wear-resistant metal plate 2 is fully covered; a 100mm wide uncoated area 9 is reserved at the edge of the wide trapezoidal interface 6 to avoid rubber interference with the joint and sealing of the narrow trapezoidal interface 7 and the wide trapezoidal interface 6; 20% of silicon carbide particles with a particle size of 0.5-1mm are incorporated into the natural rubber coating 3 to reduce the wear rate and improve the service life.

[0030] Working principle: The U-shaped steel structure of the chute body 1 forms a slurry conveying channel. The top flange edge 5 provides an installation reference surface for the wear-resistant metal plate 2. A single section of the wear-resistant metal plate 2 is vertically fixed to the flange edge 5 by bolt assembly 4. Adjacent sections are horizontally inserted through wide trapezoidal interface 6 and narrow trapezoidal interface 7. Natural rubber coating 3 covers the lower part of the inner wall of the wear-resistant metal plate 2, directly contacting the slurry. A 100mm uncoated area is reserved on the left side to avoid rubber interference with the sealing surface of the interface. The impact force of the slurry is elastically absorbed by the rubber coating 3, reducing damage to the metal substrate. Loosen the bolt assembly 4 and hold the handle 100mm above the body to lift the old plate vertically. During installation, the new narrow trapezoidal interface 7 is inserted into the adjacent wide trapezoidal interface 6, and the bolts are tightened after they are pressed together.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A wear-resistant chute that is easy to install and replace, comprising a chute body (1), characterized in that: The chute body (1) is a steel U-shaped chute with horizontally extending flange edges (5) on both sides of its top. The chute body (1) is equipped with a wear-resistant metal plate (2). The wear-resistant metal plate (2) is detachably fixed to the flange edge (5) by bolt assembly (4). The wear-resistant metal plate (2) is a stainless steel segmented splicing structure. Each segment has a wide trapezoidal interface (6) on the left and a narrow trapezoidal interface (7) on the right. The outer width of the wide trapezoidal interface (6) is 6mm larger than that of the narrow trapezoidal interface (7). The area of ​​the inner wall of the wear-resistant metal plate (2) below the top 200mm is covered with a natural rubber coating (3), and a 100mm wide uncoated area (9) is reserved at the edge of the wide trapezoidal interface (6).

2. The wear-resistant chute that is easy to install and replace according to claim 1, characterized in that: The sidewall thickness of the chute body (1) is 8mm, and a transverse reinforcing rib is provided at the bottom every 1.5m.

3. The wear-resistant chute that is easy to install and replace according to claim 2, characterized in that: The wear-resistant metal plate (2) is made of Hardox 450 steel plate, with a single section length of 750mm.

4. The wear-resistant chute that is easy to install and replace according to claim 3, characterized in that: The mating gap between the wide trapezoidal interface (6) and the narrow trapezoidal interface (7) is ≤0.2mm.

5. The wear-resistant chute that is easy to install and replace according to claim 4, characterized in that: The bolt assembly (4) includes countersunk M12 stainless steel bolts arranged in two staggered rows at 300mm intervals along the chute body (1).

6. The wear-resistant chute that is easy to install and replace according to claim 5, characterized in that: The flange edge (5) is provided with a threaded hole (8), and the threaded hole (8) is embedded with an EPDM sealing ring.

7. The wear-resistant chute according to claim 6, characterized in that: The natural rubber coating (3) has a thickness of 10 mm and contains 20% silicon carbide particles with a particle size of 0.5-1 mm.

8. The wear-resistant chute according to claim 7, characterized in that: The wear-resistant metal plate (2) extends 100mm above the chute body (1).

Images