A wear-resistant and flame-retardant conveyor belt for coal mines
Patent Information
- Application Number
- CN202522459429.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-20
AI Technical Summary
一方面，其阻燃覆盖胶层的耐磨强度与阻燃效率有限，长期与煤炭物料摩擦后易出现胶层脱落的问题，导致阻燃性能逐步衰减；另一方面，输送带的边缘部位因长期与输送设备导轨接触、受力集中，容易发生磨损、分层甚至撕裂，中部区域则在重载物料的反复冲击与摩擦下，易出现破裂、贯穿等故障，严重影响输送带的使用寿命与运输安全性，难以适配高强度、长时间的煤炭运输需求
通过在输送带主体内的中部设置由回转形金属丝和连接金属丝组成的中部加强耐磨结构，回转形金属丝可分散重载物料带来的冲击与摩擦压力，连接金属丝进一步提升结构整体性，有效增强输送带中部的抗磨损与抗破裂能力，避免中部区域因长期受力出现贯穿故障；通过在输送带主体内的边缘部位设置由边缘金属丝和纵向金属丝组成的边缘加强耐磨结构，边缘金属丝能直接抵御输送设备导轨对输送带边缘的摩擦损伤，纵向金属丝贯穿带芯与粘合胶层，强化边缘部位的结构稳定性，减少分层、撕裂问题的发生；同时输送带主体表面涂覆的阻燃聚氨酯涂层，搭配阻燃覆盖胶层形成双重阻燃防护，既提升了阻燃效率，又增强了表面耐磨性能，延缓胶层脱落速度，进而全面延长输送带的使用寿命，保障煤炭运输过程的安全性与连续性。
Smart Images
Figure CN224782961U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveyor belts, and in particular to a wear-resistant and flame-retardant conveyor belt for coal mines. Background Technology
[0002] Coal mine conveyor belts are core equipment in coal mining and transportation, and must withstand the friction, compression, and complex working conditions of coal materials over long periods. Therefore, wear resistance and flame retardancy are their core technical indicators. Structurally, traditional coal mine conveyor belts mostly use a fiber-woven core as the load-bearing skeleton, with an outer coating of adhesive and flame-retardant covering rubber. Some products may have simple reinforcement structures added to achieve basic load-bearing, wear resistance, and flame retardancy functions, ensuring the continuity of coal transportation.
[0003] Although traditional wear-resistant and flame-retardant conveyor belts for coal mines can meet basic usage requirements, they still have significant shortcomings in practical applications. On the one hand, the wear resistance and flame-retardant efficiency of their flame-retardant coating are limited, and the coating is prone to peeling off after long-term friction with coal materials, leading to a gradual decline in flame-retardant performance. On the other hand, the edges of the conveyor belt are prone to wear, delamination, and even tearing due to long-term contact with the guide rails of the conveying equipment and concentrated stress. The central area is also prone to cracking and penetration under repeated impacts and friction from heavy-load materials, seriously affecting the service life and transportation safety of the conveyor belt and making it difficult to meet the high-intensity, long-term coal transportation requirements. Utility Model Content
[0004] The main objective of this invention is to provide a wear-resistant and flame-retardant conveyor belt for coal mines, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wear-resistant and flame-retardant conveyor belt for coal mines includes a conveyor belt body. A centrally reinforced wear-resistant structure is fixedly installed in the middle of the conveyor belt body. The centrally reinforced wear-resistant structure is composed of a rotating metal wire and a connecting metal wire. There are two connecting metal wires, both of which are fixedly connected to the rotating metal wire. Two edge-reinforced wear-resistant structures are symmetrically fixedly installed at the edges of the conveyor belt body. The edge-reinforced wear-resistant structures are composed of edge metal wires and longitudinal metal wires. There are two edge metal wires, which are symmetrically arranged. There are several longitudinal metal wires, all of which are fixedly installed on the two edge metal wires. The surface of the conveyor belt body is coated with a flame-retardant polyurethane coating.
[0006] Preferably, the conveyor belt body is composed of a polyester fiber and cotton fiber blended woven belt core, an adhesive layer, and a flame-retardant covering adhesive layer.
[0007] Preferably, there are two adhesive layers, which are respectively fixedly installed on the two end faces of the polyester fiber and cotton fiber blended woven belt core, and there are two flame-retardant covering adhesive layers, which are respectively fixedly installed on the outer end faces of the two adhesive layers.
[0008] Preferably, the central reinforced wear-resistant structure is located within the flame-retardant covering adhesive layer, and the central reinforced wear-resistant structure is also located between the two edge reinforced wear-resistant structures.
[0009] Preferably, the two edge metal wires on the edge-reinforced wear-resistant structure are located at the edges of the two flame-retardant covering adhesive layers, respectively.
[0010] Preferably, the longitudinal metal wires on the edge-reinforced abrasion-resistant structure pass through the polyester and cotton fiber blended woven core and the adhesive layer.
[0011] Compared with the prior art, the present invention has the following beneficial effects: By incorporating a centrally reinforced wear-resistant structure consisting of rotating and connecting metal wires within the conveyor belt body, the rotating metal wires disperse the impact and frictional pressure from heavy-load materials, while the connecting metal wires further enhance the overall structural integrity, effectively strengthening the wear and tear resistance of the central section of the conveyor belt and preventing through-through failures caused by long-term stress. Furthermore, by installing an edge-reinforced wear-resistant structure consisting of edge and longitudinal metal wires at the edges of the conveyor belt body, the edge metal wires directly resist frictional damage from the conveyor equipment guide rails, while the longitudinal metal wires penetrate the belt core and adhesive layer, reinforcing the structural stability of the edge areas and reducing delamination and tearing. Simultaneously, the flame-retardant polyurethane coating on the surface of the conveyor belt body, combined with the flame-retardant covering adhesive layer, forms a double flame-retardant protection, improving flame-retardant efficiency, enhancing surface wear resistance, and slowing down the adhesive layer shedding rate. This comprehensively extends the service life of the conveyor belt, ensuring the safety and continuity of coal transportation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A magnified view of point A; Figure 3 This is a schematic diagram of the edge-reinforced wear-resistant structure of this utility model; Figure 4 This is a schematic diagram of the central reinforced wear-resistant structure of this utility model.
[0013] In the diagram: 1. Conveyor belt body; 2. Middle reinforced wear-resistant structure; 3. Edge reinforced wear-resistant structure; 4. Polyester and cotton fiber blended woven belt core; 5. Adhesive layer; 6. Flame-retardant covering layer; 7. Rotary metal wire; 8. Connecting metal wire; 9. Edge metal wire; 10. Longitudinal metal wire. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0015] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a wear-resistant and flame-retardant conveyor belt for coal mines includes a conveyor belt body 1. A centrally reinforced wear-resistant structure 2 is fixedly installed in the middle of the conveyor belt body 1. The centrally reinforced wear-resistant structure 2 is composed of a rotating metal wire 7 and a connecting metal wire 8. There are two connecting metal wires 8, both of which are fixedly connected to the rotating metal wire 7. Two edge reinforced wear-resistant structures 3 are symmetrically fixedly installed at the edge of the conveyor belt body 1. The edge reinforced wear-resistant structure 3 is composed of edge metal wires 9 and longitudinal metal wires 10. There are two edge metal wires 9, which are symmetrically arranged. There are several longitudinal metal wires 10, all of which are fixedly installed on the two edge metal wires 9. The surface of the conveyor belt body 1 is coated with a flame-retardant polyurethane coating. The flame-retardant polyurethane coating on the surface of the conveyor belt body 1 and the flame-retardant covering rubber layer 6 form a double flame-retardant protection, which not only improves the flame-retardant efficiency but also enhances the surface wear resistance, slows down the peeling speed of the rubber layer, and ensures the safety and continuity of the conveyor belt during coal transportation.
[0016] Specifically, the conveyor belt body 1 consists of a polyester fiber and cotton fiber blended woven belt core 4, an adhesive layer 5, and a flame-retardant covering layer 6. There are two adhesive layers 5, which are fixedly installed on the two end faces of the polyester fiber and cotton fiber blended woven belt core 4. There are two flame-retardant covering layers 6, which are fixedly installed on the outer end faces of the two adhesive layers 5. During the use of the conveyor belt body 1, the polyester fiber and cotton fiber blended woven belt core 4 serves as the core load-bearing skeleton, providing stable support for the overall structure and bearing the main tensile force during transportation. The two adhesive layers 5 are respectively attached to the two end faces of the polyester fiber and cotton fiber blended woven belt core 4, tightly bonding the belt core and the flame-retardant covering layer 6 to prevent the layers from separating. The two flame-retardant covering layers 6 wrap around the outside of the adhesive layers 5, directly contacting the coal material and conveying equipment, initially resisting friction damage and playing a basic flame-retardant role.
[0017] Specifically, the central reinforced wear-resistant structure 2 is located within the flame-retardant covering rubber layer 6, and is also located between the two edge reinforced wear-resistant structures 3. The rotating metal wire 7 effectively disperses the impact and friction pressure brought by the heavy-load material. The two connecting metal wires 8 further enhance the integrity of the central structure, strengthen the wear resistance and crack resistance of the central part of the conveyor belt body 1, and prevent the central area from experiencing through-through failure due to long-term stress.
[0018] Specifically, the two edge metal wires 9 on the edge-reinforced wear-resistant structure 3 are located at the edges of the two flame-retardant covering rubber layers 6, and the longitudinal metal wires 10 on the edge-reinforced wear-resistant structure 3 pass through the polyester fiber and cotton fiber blended woven belt core 4 and the adhesive layer 5. The two edge-reinforced wear-resistant structures 3 are symmetrically installed at the edge of the conveyor belt body 1, and the two edge metal wires 9 on them are located at the edges of the two flame-retardant covering rubber layers 6, directly resisting the friction damage of the conveyor belt edge to the guide rail of the conveyor equipment. Several longitudinal metal wires 10 pass through the polyester fiber and cotton fiber blended woven belt core 4 and the adhesive layer 5, further strengthening the structural stability of the edge and reducing the occurrence of delamination and tearing problems.
[0019] It should be noted that the rotating metal wire 7 and connecting metal wire 8 in the central reinforced wear-resistant structure 2 are both made of high-strength stainless steel. This material has excellent wear resistance, corrosion resistance, and fatigue strength, and can maintain structural stability under long-term heavy material impact and friction conditions. Its toughness can adapt to the bending conveying requirements of the conveyor belt, preventing the metal wire from breaking due to repeated bending. The edge metal wire 9 and longitudinal metal wire 10 in the edge reinforced wear-resistant structure 3 are made of high-manganese steel wire. High-manganese steel wire has extremely high hardness and wear resistance, which can effectively resist long-term friction and wear between the guide rail of the conveyor equipment and the edge of the conveyor belt. At the same time, its good tensile strength can strengthen the structural support of the edge. Both metal materials have been rust-proofed to prevent corrosion in the harsh environment of the coal mine, which is humid and dusty, ensuring the long-term use effect of the reinforced wear-resistant structure.
[0020] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A wear-resistant and flame-retardant conveyor belt for coal mines, comprising a conveyor belt body (1), characterized in that: A centrally reinforced wear-resistant structure (2) is fixedly installed in the middle of the conveyor belt body (1). The centrally reinforced wear-resistant structure (2) is composed of a rotating metal wire (7) and a connecting metal wire (8). There are two connecting metal wires (8), both of which are fixedly connected to the rotating metal wire (7). Two edge reinforced wear-resistant structures (3) are symmetrically fixedly installed at the edge of the conveyor belt body (1). The edge reinforced wear-resistant structure (3) is composed of an edge metal wire (9) and a longitudinal metal wire (10). There are two edge metal wires (9) and they are symmetrically arranged. There are several longitudinal metal wires (10) and they are all fixedly installed on the two edge metal wires (9). The surface of the conveyor belt body (1) is coated with a flame-retardant polyurethane coating.
2. The wear-resistant and flame-retardant conveyor belt for coal mines according to claim 1, characterized in that: The conveyor belt body (1) is composed of a polyester fiber and cotton fiber blended woven belt core (4), an adhesive layer (5), and a flame-retardant covering layer (6).
3. The wear-resistant and flame-retardant conveyor belt for coal mines according to claim 2, characterized in that: There are two adhesive layers (5) and they are fixedly installed on the two end faces of the polyester fiber and cotton fiber blended woven belt core (4). There are two flame-retardant covering adhesive layers (6) and they are fixedly installed on the outer end faces of the two adhesive layers (5).
4. The wear-resistant and flame-retardant conveyor belt for coal mines according to claim 3, characterized in that: The central reinforced wear-resistant structure (2) is located within the flame-retardant covering adhesive layer (6), and the central reinforced wear-resistant structure (2) is located between the two edge reinforced wear-resistant structures (3).
5. The wear-resistant and flame-retardant conveyor belt for coal mines according to claim 4, characterized in that: The two edge metal wires (9) on the edge-reinforced wear-resistant structure (3) are located at the edges of the two flame-retardant covering adhesive layers (6).
6. The wear-resistant and flame-retardant conveyor belt for coal mines according to claim 5, characterized in that: The longitudinal metal wires (10) on the edge-reinforced abrasion-resistant structure (3) pass through the polyester and cotton fiber blended woven core (4) and the adhesive layer (5).