Conveying belt
By setting a basalt fiber insulation layer inside the rubber layer covering the conveyor belt, the problem of short service life of the high-temperature resistant conveyor belt in high-temperature environment is solved, and excellent high-temperature resistance and thermal insulation performance are achieved, which prolongs the service life and reduces production costs.
Patent Information
- Application Number
- CN202422517383.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing high-temperature resistant conveyor belts have a short service life in high-temperature environments and insufficient heat resistance.
The basalt fiber insulation layer is arranged inside the upper covering rubber layer. The basalt fiber insulation layer formed by weaving warp and weft basalt fiber single yarns has excellent high temperature resistance and thermal insulation performance, reducing the transfer of heat to the core.
It effectively protects the core from damage by high temperature, prolongs the service life of the conveyor belt, and reduces production costs.
Smart Images
Figure CN223303420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of conveyor belts, in particular to a conveyor belt. Background Art
[0002] Conveyor belts are an integral component of industrial automation, primarily used for continuous material transport and widely used in industries such as metallurgy, building materials, chemicals, and electronics manufacturing. They typically consist of a belt core and upper and lower cover layers. The upper and lower cover layers, located on the upper and lower sides of the belt core, protect the core from wear and provide friction for the conveyed material. The belt core, the primary component of the conveyor belt, is typically constructed of steel wire rope or high-modulus, low-shrinkage polyester canvas for strength and stability.
[0003] In the industrial production process, it is often necessary to transport high-temperature materials, such as heat treatment, sintering, and molten metal. Ordinary conveyor belts will soften and deform in such high-temperature environments. At this time, high-temperature resistant conveyor belts are needed to ensure the stability of transportation.
[0004] High-temperature resistant conveyor belts usually adopt a rubber formula with ethylene propylene rubber (EPDM) as the main body, which includes an EPDM matrix, a peroxide vulcanization system, and special antioxidants. Among them, the peroxide vulcanization system and special antioxidants are used to improve heat resistance.
[0005] However, in actual production (such as steel mills and cement plants), in order to improve efficiency and reduce operating costs, some industries transport materials with temperatures far exceeding the heat resistance grade standards, which greatly shortens the overall service life of the conveyor belt. Utility Model Content
[0006] The utility model aims to solve the problem that the existing high temperature resistant conveyor belt has insufficient heat resistance and short service life. The utility model provides a conveyor belt with better heat insulation and high temperature resistance.
[0007] In order to solve the above technical problems, an embodiment of the present utility model discloses a conveyor belt, comprising: a core body; an upper covering rubber layer, which is arranged on one side of the core body along the thickness direction of the conveyor belt; a lower covering rubber layer, which is arranged on the other side of the core body along the thickness direction of the conveyor belt; a basalt fiber thermal insulation layer, which is arranged inside the upper covering rubber layer, and the basalt fiber thermal insulation layer is woven by warp basalt fiber single yarn and weft basalt fiber single yarn, wherein the warp density of the weaving is 9.5 yarns / cm to 11.5 yarns / cm, and the weft density is 4.8 yarns / cm to 6.8 yarns / cm.
[0008] With the above technical solution, the upper covering rubber layer is the part that is in direct contact with the material. When conveying the material, the upper covering rubber layer will first experience a temperature rise due to frictional heat generation and the material being a high-temperature material. In the embodiment of the present application, a basalt fiber thermal insulation layer is used and arranged inside the upper covering rubber layer, which can effectively isolate the heat from being transferred to the lower structure (i.e., the core body that plays the main supporting role, and the lower covering rubber layer), effectively reducing the thermal damage to the core body, protecting the core body from high temperature damage, delaying the thermal degradation caused by high temperature, and extending the service life of the conveyor belt.
[0009] The basalt fiber insulation layer is woven from single basalt fiber yarns with a warp density of 9.5 to 11.5 strands / cm and a weft density of 4.8 to 6.8 strands / cm, resulting in excellent high-temperature resistance and thermal insulation properties. For example, a conveyor belt using the basalt fiber insulation layer can operate normally at temperatures of 880°C.
[0010] According to another specific embodiment of the present invention, the warp density is 10.5 pieces / cm, and the weft density is 5.8 pieces / cm.
[0011] According to another specific embodiment of the present invention, the thickness of the basalt fiber insulation layer is 0.53 mm to 0.63 mm.
[0012] Using this technical solution, the thickness of the basalt fiber insulation layer can be adjusted to any value within 0.58 ± 0.05, providing excellent high-temperature resistance and thermal insulation performance. For example, the conveyor belt can operate normally at 880°C. This also effectively reduces production costs.
[0013] According to another specific embodiment of the present invention, the weight of the basalt fiber insulation layer is 477g / m 2 ~511g / m 2 .
[0014] The above technical solution can reduce thermal conductivity, increase thermal resistance, and effectively improve the high temperature resistance and thermal insulation performance of the basalt fiber insulation layer.
[0015] According to another specific embodiment of the present invention, the weaving structure of the warp basalt fiber single yarn and the weft basalt fiber single yarn is plain weave.
[0016] According to another specific embodiment of the present invention, the longitudinal breaking strength of the basalt fiber insulation layer is 135 N / mm to 380 N / mm.
[0017] According to another specific embodiment of the present invention, the latitudinal breaking strength of the basalt fiber insulation layer is 80 N / mm to 200 N / mm.
[0018] According to another specific embodiment of the present invention, the radial single yarn strength and / or the weft single yarn strength of the warp basalt fiber single yarn is 134N / end to 350N / end.
[0019] According to another specific embodiment of the present invention, the basalt fiber thermal insulation layer has a warp elongation at break and / or a weft elongation at break of 2% to 5%.
[0020] According to another specific embodiment of the present invention, the longitudinal adhesion of the basalt fiber insulation layer is greater than or equal to 7.8 N / mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram showing a conveyor belt according to an embodiment of the present invention.
[0022] Figure 2 A schematic diagram of the internal structure of a conveyor belt according to an embodiment of the present utility model is shown. DETAILED DESCRIPTION
[0023] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0024] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0025] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.
[0026] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0027] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.
[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
[0029] refer to Figure 1 , Figure 1 An application diagram of the conveyor belt 100 according to an embodiment of the present application is shown as an example.
[0030] In the industrial production process, the conveyor belt 100 and the roller body 200 cooperate to realize the conveyance of the material 300, such as Figure 1 As shown, the conveyor belt 100 is wound around rollers 200 at both ends and transports the material 300 on the conveyor belt 100 to the next process device 400 (such as a storage silo, batching station, etc.). However, when the material 300 is a high-temperature material such as molten metal, slag, refractory bricks, hot-rolled steel billets, scrap steel, cement and limestone, the conveyor belt 100 needs to have excellent high-temperature resistance.
[0031] Based on this, reference Figure 2 The embodiment of the present application provides a high-temperature resistant conveyor belt 100 , including an upper covering rubber layer 101 , a core body 102 , a lower covering rubber layer 103 and a basalt fiber insulation layer 104 .
[0032] It can be seen that along the thickness direction of the conveyor belt 100 (eg Figure 2 The core 102 is located in the middle of the conveyor belt 100, and the upper cover rubber layer 101 is arranged on one side of the core 102 (ie Figure 2 The lower cover glue layer 103 is arranged on the other side of the core 102 (ie Figure 2 The side indicated by the Z2 direction).
[0033] Furthermore, the basalt fiber insulation layer 104 is woven from single basalt fiber yarns in the warp direction and single basalt fiber yarns in the weft direction, with a warp density of 9.5 to 11.5 yarns / cm and a weft density of 4.8 to 6.8 yarns / cm. The basalt fiber insulation layer 104 is disposed within the upper cover rubber layer 101. For example, the basalt fiber insulation layer 104 has a warp density of 10.5 yarns / cm and a weft density of 5.8 yarns / cm.
[0034] For another example, the warp density of the basalt fiber insulation layer 104 can also be 9.5 fibers / cm, 10.4 fibers / cm, 11.1 fibers / cm, 11.5 fibers / cm, etc.; the weft density of the basalt fiber insulation layer 104 can also be 4.8 fibers / cm, 5.5 fibers / cm, 6.6 fibers / cm, 6.8 fibers / cm, etc.
[0035] refer to Figure 2 Combined with Figure 1 Since the upper covering rubber layer 101 is in direct contact with the material 300, when conveying the material 300, due to frictional heat generation, the material being a high-temperature material, etc., the upper covering rubber layer 101 will first experience a temperature rise. In the embodiment of the present application, a basalt fiber insulation layer 104 is used and arranged inside the upper covering rubber layer 101, which can effectively isolate the heat from being transferred to the lower structure (i.e., the core 102 that plays the main supporting role, and the lower covering rubber layer 103), effectively reducing the thermal damage to the core 102, protecting the core 102 from high temperature damage, delaying thermal degradation caused by high temperature, and extending the service life of the conveyor belt 100.
[0036] At the same time, the basalt fiber insulation layer 104 is woven from warp basalt fiber single yarns with a warp density of 9.5 to 11.5 strands / cm and weft basalt fiber single yarns with a weft density of 4.8 to 6.8 strands / cm, and has excellent high temperature resistance and thermal insulation properties.
[0037] In one possible embodiment, the thickness L of the basalt fiber insulation layer 104 is 0.53 mm to 0.63 mm. For example, the thickness of the basalt fiber insulation layer 104 can be tested using the ASTM D1777 standard test method. For example, the thickness L of the basalt fiber insulation layer 104 can be 0.53 mm, 0.57 mm, 0.61 mm, 0.629 mm, 0.63 mm, and so on.
[0038] Using this technical solution, the thickness L of the basalt fiber insulation layer 104 can be 0.58±0.05, which provides excellent high-temperature resistance and thermal insulation performance. For example, in this case, the conveyor belt 100 can operate normally at 880°C. At the same time, it can also effectively reduce production costs.
[0039] In one possible embodiment, the weight of the basalt fiber insulation layer 104 is 477 g / m 2 ~511g / m 2 For example, the basalt fiber insulation layer 104 may be subjected to a cloth weight test using the ASTM D3776 standard test method.
[0040] For example, the weight of the basalt fiber insulation layer 104 can be 477 g / m 2 , 485g / m 2 , 503g / m 2 , 511g / m 2 Equal values.
[0041] The adoption of this technical solution can reduce thermal conductivity, increase thermal resistance, and effectively improve the high temperature resistance and thermal insulation performance of the basalt fiber insulation layer 104.
[0042] In one possible embodiment, the warp and weft basalt fiber yarns are woven in a plain weave. Using this technical solution, the warp and weft basalt fiber yarns are woven in an alternating pattern, resulting in a tight and evenly distributed interweaving of the yarns. This facilitates uniform heat distribution, thereby preventing localized overheating of the conveyor belt 100.
[0043] However, the embodiments of the present application are not limited to this. For example, any one of the weaving structures such as twill, satin, Oxford, diamond, and square may be used.
[0044] In a possible implementation, the longitudinal breaking strength of the basalt fiber insulation layer 104 is 135 N / mm to 380 N / mm.
[0045] In a possible implementation, the basalt fiber insulation layer 104 has a latitudinal breaking strength of 80 N / mm to 200 N / mm.
[0046] For example, the basalt fiber insulation layer 104 may be tested for breaking strength using the ASTM D5035 standard test method.
[0047] In one possible embodiment, the radial single yarn strength and / or weft single yarn strength of the warp basalt fiber single yarn is 134 N / end to 350 N / end. For example, the single yarn strength test of the basalt fiber insulation layer 104 can be performed using the ASTM D5035 standard test method.
[0048] In one possible embodiment, the warp elongation at break and / or the weft elongation at break of the basalt fiber insulation layer 104 is 2% to 5%. For example, the elongation at break of the basalt fiber insulation layer 104 can be tested using the ASTM D5035 standard test method.
[0049] In one possible embodiment, the longitudinal adhesion of the basalt fiber insulation layer 104 is greater than or equal to 7.8 N / mm. For example, a core adhesive may be used to perform the adhesion test.
[0050] refer to Figure 1 and Figure 2 In the embodiment of the present application, the conveyor belt 100 of the embodiment of the present application adopts a basalt fiber insulation layer 104, and arranges it inside the upper covering rubber layer 101, so that it can effectively isolate the heat received by the upper covering rubber layer 103, thereby protecting the core 102 and the lower covering rubber layer 103 located at the bottom of the upper covering rubber layer 103, effectively reducing the thermal damage to the core 102 caused by heat, protecting the core 102 from damage by high temperature, delaying thermal degradation caused by high temperature, and extending the service life of the conveyor belt 100.
[0051] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.
Claims
1. A conveyor belt, characterized in that: include: core; An upper covering rubber layer is provided on one side of the core body along the thickness direction of the conveyor belt; a lower covering rubber layer, arranged on the other side of the core body along the thickness direction of the conveyor belt; The basalt fiber thermal insulation layer is arranged inside the upper covering rubber layer. The basalt fiber thermal insulation layer is woven by warp basalt fiber single yarn and weft basalt fiber single yarn, wherein the warp density of the weaving is 9.5 to 11.5 yarns / cm, and the weft density is 4.8 to 6.8 yarns / cm.
2. The conveyor belt according to claim 1, characterized in that The warp density is 10.5 pieces / cm, and the weft density is 5.8 pieces / cm.
3. The conveyor belt according to claim 1, characterized in that The thickness of the basalt fiber thermal insulation layer is 0.53 mm to 0.63 mm.
4. The conveyor belt according to claim 1, characterized in that The weight of the basalt fiber insulation layer is 477g / m 2 ~511g / m 2 .
5. The conveyor belt according to claim 1, characterized in that The weaving structure of the warp basalt fiber single yarn and the weft basalt fiber single yarn is plain weave.
6. The conveyor belt according to claim 1, characterized in that The longitudinal breaking strength of the basalt fiber thermal insulation layer is 135N / mm to 380N / mm.
7. The conveyor belt according to claim 1, characterized in that The latitudinal breaking strength of the basalt fiber thermal insulation layer is 80 N / mm to 200 N / mm.
8. The conveyor belt according to claim 1, characterized in that The radial single yarn strength and / or weft single yarn strength of the warp basalt fiber single yarn is 134N / end to 350N / end.
9. The conveyor belt according to claim 1, characterized in that The basalt fiber heat insulation layer has a warp elongation at break and / or a weft elongation at break of 2% to 5%.
10. The conveyor belt according to claim 1, characterized in that The longitudinal adhesion of the basalt fiber insulation layer is greater than or equal to 7.8 N / mm.