Fabric wear-resistant flame-retardant conveying belt

Through multi-layer structural design and material combination, the fabric wear-resistant and flame-retardant conveyor belt solves the problem of decreased wear resistance and flame retardant performance after long-term use, achieving efficient wear resistance and flame retardant protection, and is suitable for underground coal mines and other mining scenarios.

CN223865593UActive Publication Date: 2026-02-03HEBEI HUANQIU RUBBER PROD
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Patent Information

Application Number
CN202520155282.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-03
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing fabric abrasion-resistant and flame-retardant conveyor belts cannot maintain both high abrasion resistance and flame retardant properties simultaneously after long-term use.

Method used

It adopts a multi-layer structure design, including a core, abrasion-resistant components, fabric components and flame-retardant layers. The combination of hard rubber, polyurethane, magnesium hydroxide and phosphorus-based flame retardants provides abrasion-resistant and flame-retardant protection respectively, while steel wire and reinforcing strips enhance structural stability.

Benefits of technology

It improves the wear resistance and flame retardancy of the conveyor belt, extends its service life, reduces the risk and spread of fire, and adapts to complex transportation environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of conveying belts, and discloses a fabric wear-resistant flame-retardant conveying belt which comprises a belt core, a wear-resistant assembly is arranged on the outer side of the belt core, a fabric assembly is arranged on the outer side of the wear-resistant assembly, first reinforcing strips are fixedly connected to the two sides of the outer wall of the belt core, and a plurality of second reinforcing strips are fixedly connected to the outer wall of the belt core. Reinforcing steel bars are fixedly connected to the interiors of the first reinforcing strips and the interiors of the second reinforcing strips. The belt core comprises a first steel wire, a second steel wire is arranged on the outer wall of the first steel wire, and the first steel wire and the second steel wire are arranged at equal intervals in a surrounding mode. According to the utility model, through the design of a multi-layer wear-resistant structure, the first hard rubber wear-resistant layer preliminarily resists friction, the second polyurethane wear-resistant layer deals with complex wear by virtue of high hardness and tear resistance, the steel wires of the belt core are wound, and the reinforcing strips and the reinforcing steel bars provide supporting force, so that the friction is effectively resisted, the wear is effectively reduced, and the service life and the practicability of the conveying belt are improved.
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Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a fabric wear-resistant and flame-retardant conveyor belt. Background Technology

[0002] Fabric-based wear-resistant and flame-retardant conveyor belts are conveyor belts with a fabric skeleton, possessing wear-resistant and flame-retardant properties through a special process. In underground coal mines, due to the presence of flammable gases such as methane and limited ventilation, from a safety perspective, the flame-retardant properties of this conveyor belt can prevent the spread of fires caused by gas explosions, reduce smoke and toxic gas production to ensure ventilation safety; from a durability perspective, it can withstand the complex transportation environment of coal particle friction and adapt to underground spatial layouts. In mining and other similar scenarios, for safety reasons, it can prevent ore friction ignition and reduce the risk of fire damage to facilities. Simultaneously, its wear-resistant properties can resist ore abrasion and adapt to high-intensity conveying tasks, thus finding application in underground coal mines and other mining scenarios.

[0003] Fabric conveyor belts include ordinary fabric conveyor belts, wear-resistant fabric conveyor belts, and wear-resistant and flame-retardant fabric conveyor belts. Among them, the wear-resistant and flame-retardant fabric conveyor belts not only have wear resistance but also flame-retardant properties. This is achieved by adding flame retardants during the manufacturing process. They are suitable for applications with fire risks and where wear resistance is required, such as conveying coal in underground coal mines and conveying flammable chemicals in chemical raw material plants.

[0004] Existing fabric wear-resistant and flame-retardant conveyor belts mostly rely on a single layer of flame-retardant material to deal with fires and prevent them from spreading. However, using only a single flame-retardant and wear-resistant material cannot guarantee the wear resistance of the conveyor belt after long-term use. Therefore, the fabric wear-resistant and flame-retardant conveyor belt is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fabric wear-resistant and flame-retardant conveyor belt, which aims to improve the problem that the existing fabric wear-resistant and flame-retardant conveyor belt cannot achieve high-efficiency wear resistance and flame retardancy during use by using only a single layer of flame-retardant and wear-resistant materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fabric wear-resistant and flame-retardant conveyor belt, including a belt core, a wear-resistant component is provided on the outside of the belt core, a fabric component is provided on the outside of the wear-resistant component, a first reinforcing strip is fixedly connected to both sides of the outer wall of the belt core, a plurality of second reinforcing strips are fixedly connected to the outer wall of the belt core, and a reinforcing steel strip is fixedly connected inside both the first and second reinforcing strips.

[0007] Furthermore, the core includes a steel wire one, and a steel wire two is provided on the outer wall of the steel wire one, with the steel wire one and the steel wire two arranged in a equidistant ring.

[0008] Furthermore, the wear-resistant component includes a first wear-resistant layer, one side of the outer wall of the first wear-resistant layer is disposed on the upper side of the belt core, and a second wear-resistant layer is fixedly connected to one side of the outer wall of the first wear-resistant layer.

[0009] Furthermore, the fabric assembly includes reinforcing yarns, the outer wall of which is disposed on one side of the wear-resistant component, and wrapping yarns are uniformly disposed on the outer side of the reinforcing yarns.

[0010] Furthermore, a flame-retardant layer one is fixedly connected to one side of the outer wall of the fabric assembly, and a flame-retardant layer two is fixedly connected to one side of the outer wall of the flame-retardant layer one.

[0011] Furthermore, the wear-resistant component, fabric component, flame-retardant layer one, and flame-retardant layer two are equidistantly distributed, and all three components are wrapped around the outside of the core.

[0012] Furthermore, the first wear-resistant layer is made of hard rubber, the second wear-resistant layer is made of polyurethane, and the first wear-resistant layer and the second wear-resistant layer are fixed together by a high-strength adhesive.

[0013] Furthermore, the first flame-retardant layer is made of magnesium hydroxide, and the second flame-retardant layer is made of phosphorus-based flame retardant. Both the first and second flame-retardant layers are wrapped around the outside of the fabric assembly.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, through a multi-layer wear-resistant structure design, the hard rubber wear-resistant layer one and the polyurethane wear-resistant layer two in the wear-resistant component work together; the hard rubber can initially resist friction, while the polyurethane, with its high hardness and tear resistance, can cope with more complex wear conditions; at the same time, the belt core is made of steel wire and equipped with reinforcing strips and internal reinforcing steel strips, providing strong support for the conveyor belt; this structure can effectively resist various frictions and reduce wear during material conveying, thereby improving the service life and practicality of the conveyor belt.

[0016] 2. In this utility model, by setting up a double flame-retardant layer, the magnesium hydroxide in the first flame-retardant layer decomposes upon heating to produce water and absorb heat, while the phosphorus-based flame retardant in the second flame-retardant layer forms a protective film to isolate oxygen during combustion. This combination exerts its flame-retardant effect through different mechanisms, greatly improving the flame-retardant effect. Moreover, the wear-resistant components, fabric components, and flame-retardant layers work closely together and collaboratively. When encountering a fire source, the outer structure can prevent direct contact with the flame, buying time for the flame-retardant layer to take effect, thereby effectively reducing the risk of fire and the speed of its spread. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the wear-resistant and flame-retardant fabric conveyor belt proposed in this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the fabric component of the fabric wear-resistant and flame-retardant conveyor belt proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the two-part structure of the wear-resistant layer of the wear-resistant and flame-retardant fabric conveyor belt proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the two-part steel wire structure of the wear-resistant and flame-retardant fabric conveyor belt proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the wrapping yarn portion of the fabric wear-resistant and flame-retardant conveyor belt proposed in this utility model.

[0022] Legend:

[0023] 1. Core; 101. Steel Wire 1; 102. Steel Wire 2; 2. Wear-resistant component; 201. Wear-resistant layer 1; 202. Wear-resistant layer 2; 3. Fabric component; 301. Reinforcing wire; 302. Wrapping wire; 4. Reinforcing strip 1; 5. Reinforcing strip 2; 6. Reinforcing steel strip; 7. Flame-retardant layer 1; 8. Flame-retardant layer 2. 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] Reference Figure 1 - Figure 5This utility model provides an embodiment of a fabric wear-resistant and flame-retardant conveyor belt, including a belt core 1. The belt core 1 serves as the basic support and bears tensile force, and is the core structure of the conveyor belt. Wear-resistant components 2 are provided on the outer side of the belt core 1 to resist friction and wear on the conveyor belt surface from materials, improving the wear resistance of the conveyor belt. Fabric components 3 are provided on the outer side of the wear-resistant components 2 to enhance the structural strength of the conveyor belt and provide some protection for internal components. Reinforcing strips 4 are fixedly connected to both sides of the outer wall of the belt core 1. The reinforcing strips 4 enhance the structural stability of both sides of the belt core 1 and prevent lateral deformation. Multiple... Reinforcing strip 2 5 further strengthens the overall strength of the belt core 1, making it more reliable when bearing material weight and running tension. Reinforcing strips 1 4 and 2 5 are both internally fixed with reinforcing steel strips 6, which greatly improve the strength of the reinforcing strips, thereby enhancing the load-bearing capacity and tensile strength of the entire conveyor belt. The belt core 1 includes steel wire 101, which is one of the main load-bearing components of the belt core 1, providing a certain strength and toughness. Steel wire 2 102 is provided on the outer wall of steel wire 101. Steel wire 2 102 works in conjunction with steel wire 101 to form a robust structure of the belt core 1, enhancing its overall performance. The wear-resistant component 2 includes a first wear-resistant layer 201, with one side of its outer wall positioned above the belt core 1. This first wear-resistant layer 201 can initially withstand the friction of the material, providing some wear protection. A second wear-resistant layer 202 is fixedly connected to one side of the outer wall of the first wear-resistant layer 201, offering better wear resistance and able to handle more complex wear conditions. The two wear-resistant layers work synergistically to effectively improve the wear resistance of the conveyor belt. The fabric component 3 includes reinforcing filaments 301, with their outer walls positioned on one side of the wear-resistant component 2, providing reinforcement. The reinforcing filament 301 is used to enhance the strength of the fabric assembly 3, enabling it to better withstand external forces. The reinforcing filament 301 is uniformly surrounded by wrapping filaments 302, which can wrap and protect the internal structure and also help improve the overall flexibility and durability of the conveyor belt. A flame-retardant layer 7 is fixedly connected to one side of the outer wall of the fabric assembly 3. When the flame-retardant layer 7 encounters a fire source, it can play a flame-retardant role, prevent the spread of flames, and ensure the safety of the conveyor belt. A flame-retardant layer 8 is fixedly connected to one side of the outer wall of the flame-retardant layer 7. The flame-retardant layer 8 and the flame-retardant layer 7 work together to further improve the flame-retardant performance of the conveyor belt and enhance its safety in flammable environments.

[0026] Reference Figure 1 - Figure 5The wear-resistant component 2, fabric component 3, flame-retardant layer 7, and flame-retardant layer 8 are equidistantly distributed. This equidistant distribution allows each layer to more evenly bear pressure and friction when it functions, ensuring the overall stability of the conveyor belt's performance. All three components wrap around the outer side of the belt core 1, providing comprehensive protection. Simultaneously, the layers work synergistically to enhance the overall performance of the conveyor belt from different aspects. Wear-resistant layer 201 is made of hard rubber, which has a certain hardness and wear resistance, providing basic wear protection against material friction. Wear-resistant layer 202 is made of polyurethane, which has high hardness, high wear resistance, and good tear resistance, enabling it to cope with more complex and severe wear conditions. Working synergistically with wear-resistant layer 201, it greatly improves the wear resistance of the conveyor belt. The two wear-resistant layers are fixed with high-strength adhesive to ensure a tight bond and prevent separation during operation. Together, they effectively resist material wear. Flame-retardant layer 7 is made of magnesium hydroxide, which decomposes to produce water when heated. The water absorbs a large amount of heat during evaporation, thereby reducing the temperature of the combustion zone and providing the first line of fire protection for the conveyor belt. Flame-retardant layer 8 is made of phosphorus-based flame retardant, which forms phosphoric acid, metaphosphoric acid, and other substances when burning. These substances form a protective film on the surface of the conveyor belt, isolating oxygen and preventing the combustion from continuing. Together with flame-retardant layer 7, they further improve the flame-retardant performance of the conveyor belt. Both flame-retardant layers 7 and 8 are wrapped around the outside of the fabric assembly 3. When exposed to a fire source, they can effectively and promptly exert their flame-retardant function, protecting the internal structure of the conveyor belt, preventing the spread of fire, and ensuring the safe use of the conveyor belt in flammable environments.

[0027] Working principle: When this fabric wear-resistant and flame-retardant conveyor belt is required, the belt core 1 is the core, composed of steel wire 101 and steel wire 102 wrapped at equal intervals, providing basic strength and support for the conveyor belt, capable of withstanding the weight of materials and conveying tension. The outer wall reinforcement strips 4 and 5, and the internal reinforcing steel strips 6 further enhance stability, disperse stress, and prevent deformation and damage. The wear-resistant component 2 is located outside the belt core 1. The hard rubber of the wear-resistant layer 201 and the polyurethane of the wear-resistant layer 202 are fixed by high-strength adhesive. When conveying materials, they work together to resist friction, with the hard rubber initially bearing the initial wear. Polyurethane, with its high hardness and tear resistance, copes with complex and harsh conditions, improving wear resistance and service life. The reinforcing yarn 301 and wrapping yarn 302 of the fabric component 3 are on the outside of the wear-resistant component 2, reinforcing the structure and protecting the interior. The magnesium hydroxide of the flame-retardant layer 1 7 and the flame-retardant layer 2 8 are on the outside of the fabric component 3. When exposed to a fire source, the magnesium hydroxide decomposes and absorbs heat, and the phosphorus-based flame retardant forms a protective film to isolate oxygen, thus achieving flame retardancy. The layers are evenly distributed and tightly wrap the belt core 1, working together to give the conveyor belt good flame retardant properties while being wear-resistant, meeting the needs of different scenarios, such as underground coal mines and mines.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fabric wear-resistant and flame-retardant conveyor belt, comprising a belt core (1), characterized in that: The outer side of the belt core (1) is provided with a wear-resistant component (2), the outer side of the wear-resistant component (2) is provided with a fabric component (3), the outer sides of the outer wall of the belt core (1) are fixedly connected with a first reinforcing strip (4), the outer wall of the belt core (1) is fixedly connected with a plurality of second reinforcing strips (5), and the first reinforcing strip (4) and the second reinforcing strip (5) are both fixedly connected with reinforcing steel strips (6).

2. The fabric wear-resistant and flame-retardant conveyor belt according to claim 1, characterized in that: The core (1) includes a steel wire one (101), and a steel wire two (102) is provided on the outer wall of the steel wire one (101). The steel wire one (101) and the steel wire two (102) are arranged in a equidistant ring.

3. The fabric wear-resistant and flame-retardant conveyor belt according to claim 2, characterized in that: The wear-resistant component (2) includes a first wear-resistant layer (201), one side of the outer wall of the first wear-resistant layer (201) is disposed on the upper side of the core (1), and a second wear-resistant layer (202) is fixedly connected to one side of the outer wall of the first wear-resistant layer (201).

4. The fabric wear-resistant and flame-retardant conveyor belt according to claim 3, characterized in that: The fabric assembly (3) includes a reinforcing filament (301), the outer wall of which is disposed on one side of the wear-resistant assembly (2), and wrapping filaments (302) are uniformly disposed on the outer side of the reinforcing filament (301).

5. The fabric wear-resistant and flame-retardant conveyor belt according to claim 4, characterized in that: Flame-retardant layer one (7) is fixedly connected to one side of the outer wall of the fabric assembly (3), and flame-retardant layer two (8) is fixedly connected to one side of the outer wall of the flame-retardant layer one (7).

6. The fabric wear-resistant and flame-retardant conveyor belt according to claim 5, characterized in that: The wear-resistant component (2), fabric component (3), flame-retardant layer one (7) and flame-retardant layer two (8) are arranged at equal intervals, and the wear-resistant component (2), fabric component (3), flame-retardant layer one (7) and flame-retardant layer two (8) are all wrapped around the outside of the core (1).

7. The fabric wear-resistant and flame-retardant conveyor belt according to claim 3, characterized in that: The first wear-resistant layer (201) is made of hard rubber, the second wear-resistant layer (202) is made of polyurethane, and the first wear-resistant layer (201) and the second wear-resistant layer (202) are fixed together by a high-strength adhesive.

8. The fabric wear-resistant and flame-retardant conveyor belt according to claim 5, characterized in that: The flame retardant layer one (7) is made of magnesium hydroxide, and the flame retardant layer two (8) is made of phosphorus-based flame retardant. Both the flame retardant layer one (7) and the flame retardant layer two (8) are wrapped around the outside of the fabric assembly (3).