Wear-resistant glass fiber cloth bag

Abstract

The utility model discloses a wear-resistant glass fiber cloth bag, which belongs to the technical field of glass fiber cloth bags and comprises a glass fiber cloth bag main body, two connecting handles are fixedly mounted on the outer side of the glass fiber cloth bag main body, and expansion cloth is fixedly mounted on the inner side of the glass fiber cloth bag main body. A reinforcing sewing thread is arranged at the joint of the glass fiber cloth bag main body, the connecting handle and the expansion cloth; the reinforced middle layer is arranged on one side of the protective outer layer, and the foundation inner layer is arranged on one side of the reinforced middle layer; the technical bottleneck is systematically solved through a triple combination reinforcing system (a protective outer layer, a reinforcing middle layer and a basic inner layer) and an interface modification technology, so that the service life of the cloth bag is prolonged to 24-30 months, the comprehensive cost is reduced by more than 60%, a nano-scale smooth surface (Ra is less than or equal to 0.5 mu m) is formed under the action of a modified polytetrafluoroethylene (PTFE) micro powder coating of a surface wear-resistant layer material, and the service life of the cloth bag is prolonged. The friction coefficient is reduced to below 0.12, and the abrasion of dust particles to the bag body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber bag technology, specifically to a wear-resistant glass fiber bag. Background Technology

[0002] In industrial filtration and material handling, fiberglass bags are widely used due to their high temperature resistance (200-280℃), corrosion resistance (acid and alkali resistance, pH 2-12), and high filtration efficiency (≥99.5%). However, traditional single-layer fiberglass bags exhibit significant drawbacks under complex operating conditions:

[0003] Insufficient wear resistance: The glass fiber has a Mohs hardness of only 5.5, and under the scouring of dusty airflow (wind speed > 2.5 m / min), the surface wear rate reaches 0.8 mg / m. 2 The following issues contribute to the poor performance of filter bags: low tensile strength (warp and weft breaking strength is typically <1200N / 5cm), leading to frequent tearing under high-pressure pulse cleaning (pressure >0.5MPa); poor deformation resistance (elastic modulus is approximately 70GPa), resulting in creep under long-term loads (>1500Pa pressure difference), causing bag collapse deformation rates up to 15%; and weak interfacial stability (interlayer adhesion strength <2N / cm), making them prone to delamination under alternating temperature and humidity conditions (ΔT >80℃ / ΔRH >60%). These problems result in an annual replacement rate exceeding 40% for traditional filter bags, causing downtime losses exceeding 2 million RMB per set.

[0004] In use, although existing technologies attempt to improve performance through surface coating (such as PTFE coating) and structural reinforcement (such as adding metal mesh), new problems still exist, such as easy coating peeling (adhesion <5N / cm) and metal wire corrosion (salt spray test <500h); therefore, this device provides wear-resistant glass fiber cloth bags. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a wear-resistant fiberglass bag to solve the aforementioned technical problems.

[0006] The present invention adopts the following technical solution: a wear-resistant fiberglass bag, including a fiberglass bag body, two connecting handles are fixedly installed on the outer side of the fiberglass bag body, an extension cloth is fixedly installed on the inner side of the fiberglass bag body, and a reinforcing sewing line is provided at the connection between the fiberglass bag body, the connecting handles and the extension cloth;

[0007] The fiberglass bag body includes a protective outer layer, a reinforcing middle layer, and a basic inner layer. The reinforcing middle layer is disposed on one side of the protective outer layer, and the basic inner layer is disposed on one side of the reinforcing middle layer.

[0008] The protective outer layer includes a surface wear-resistant layer, an antistatic buffer layer, and an environmental isolation layer. The antistatic buffer layer is disposed on one side of the surface wear-resistant layer, and the environmental isolation layer is disposed on one side of the antistatic buffer layer.

[0009] As a further improvement to the above solution, the reinforcing middle layer includes a transverse reinforcing layer, a longitudinal reinforcing layer and a three-dimensional support layer, wherein the longitudinal reinforcing layer is disposed on one side of the transverse reinforcing layer and the three-dimensional support layer is disposed on one side of the longitudinal reinforcing layer.

[0010] As a further improvement to the above scheme, the foundation inner layer includes a main load-bearing layer, a stress-dispersing layer, and an interface bonding layer. The stress-dispersing layer is disposed on one side of the main load-bearing layer, and the interface bonding layer is disposed on one side of the stress-dispersing layer.

[0011] As a further improvement to the above solution, the surface wear-resistant layer is made of polytetrafluoroethylene, the antistatic buffer layer is made of conductive carbon black-doped silicone rubber, and the environmental isolation layer is made of modified polyimide.

[0012] As a further improvement to the above scheme, the material of the transverse reinforcing layer is carbon fiber bundles, the material of the longitudinal reinforcing layer is polyethylene, and the material of the three-dimensional support layer is basalt fiber three-dimensional braided fabric.

[0013] As a further improvement to the above solution, the main load-bearing layer is made of glass fiber, the stress dispersion layer is made of aramid pulp nonwoven layer, and the interface bonding layer is made of epoxy resin and nano clay composite material.

[0014] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0015] I. This utility model systematically solves the above-mentioned technical bottlenecks through a triple composite reinforcement system (protective outer layer - reinforced middle layer - basic inner layer) and interface modification technology, which increases the service life of the filter bag to 24-30 months and reduces the overall cost by more than 60%. The surface wear-resistant layer material is modified polytetrafluoroethylene (PTFE) micro powder coating to form a nanoscale smooth surface (Ra≤0.5μm), which reduces the coefficient of friction to below 0.12 and reduces the wear of dust particles on the bag body;

[0016] II. The main body of the fiberglass bag is composed of the above three composite layers with a total thickness of 5.5-6.5mm; the connecting handle is fixed by riveting with a 316L stainless steel ring with a diameter of 12mm, and the load-bearing capacity is >500kg; the extension fabric is set on both sides of the bag opening, and is woven with aramid fiber with a breaking strength of >2000N, supporting a 20% expansion of the bag volume; the reinforcing sewing thread is made of polyethylene terephthalate thread with a diameter of 0.5mm, a sewing density of 12 stitches / cm, and an anti-aging effect of up to 5000 hours. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the fiberglass bag body and connecting handle in this utility model.

[0020] Figure 3 This is a partial three-dimensional structural diagram of the protective outer layer, the reinforcing middle layer, and the basic inner layer in this utility model.

[0021] Figure 4 This is a partial structural diagram of the surface wear-resistant layer in this utility model.

[0022] Figure Labels

[0023] 1. Fiberglass bag body; 2. Connecting handle; 3. Extension fabric; 4. Reinforced sewing thread; 5. Protective outer layer; 6. Reinforced middle layer; 7. Basic inner layer; 8. Surface wear-resistant layer; 9. Antistatic buffer layer; 10. Environmental isolation layer; 11. Lateral reinforcement layer; 12. Longitudinal reinforcement layer; 13. Three-dimensional support layer; 14. Main load-bearing layer; 15. Stress dispersion layer; 16. Interface adhesive layer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] This utility model embodiment provides a wear-resistant fiberglass bag, which includes a fiberglass bag body 1, two connecting handles 2 fixedly installed on the outer side of the fiberglass bag body 1, an extension cloth 3 fixedly installed on the inner side of the fiberglass bag body 1, and a reinforcing sewing line 4 provided at the connection between the fiberglass bag body 1, the connecting handles 2 and the extension cloth 3.

[0027] The fiberglass bag body 1 includes a protective outer layer 5, a reinforcing middle layer 6, and a basic inner layer 7. The reinforcing middle layer 6 is disposed on one side of the protective outer layer 5, and the basic inner layer 7 is disposed on one side of the reinforcing middle layer 6.

[0028] The protective outer layer 5 includes a surface wear-resistant layer 8, an antistatic buffer layer 9, and an environmental isolation layer 10. The antistatic buffer layer 9 is disposed on one side of the surface wear-resistant layer 8, and the environmental isolation layer 10 is disposed on one side of the antistatic buffer layer 9.

[0029] Furthermore, this invention systematically solves the above-mentioned technical bottlenecks through a triple composite reinforcement system (protective outer layer - reinforcing middle layer - basic inner layer) and interface modification technology, thereby increasing the service life of the bag to 24-30 months and reducing the overall cost by more than 60%. The surface wear-resistant layer material is modified polytetrafluoroethylene (PTFE) micro powder coating to form a nanoscale smooth surface (Ra≤0.5μm), reducing the coefficient of friction to below 0.12 and reducing the wear of dust particles on the bag body.

[0030] In a further preferred embodiment of the present invention, the reinforcing middle layer 6 includes a transverse reinforcing layer 11, a longitudinal reinforcing layer 12 and a three-dimensional support layer 13. The longitudinal reinforcing layer 12 is disposed on one side of the transverse reinforcing layer 11, and the three-dimensional support layer 13 is disposed on one side of the longitudinal reinforcing layer 12.

[0031] Furthermore, this prevents delamination and peeling that can occur with long-term use, ensuring a tighter connection between the fabric bags.

[0032] In a further preferred embodiment of the present invention, the inner base layer 7 includes a main load-bearing layer 14, a stress dispersion layer 15, and an interface adhesive layer 16. The stress dispersion layer 15 is disposed on one side of the main load-bearing layer 14, and the interface adhesive layer 16 is disposed on one side of the stress dispersion layer 15.

[0033] Furthermore, it reduces the stress concentration factor of the bag by 40%, prevents crack initiation, provides a basic strength fracture strength of 1800N / 5cm, withstands high temperatures up to 280℃, and accounts for 60% of the total load-bearing capacity.

[0034] In a further preferred embodiment of this utility model, the surface wear-resistant layer 8 is made of polytetrafluoroethylene, the antistatic buffer layer 9 is made of conductive carbon black-doped silicone rubber, and the environmental isolation layer 10 is made of modified polyimide.

[0035] Furthermore, the surface wear-resistant layer 8, made of modified polytetrafluoroethylene (PTFE) micro-powder coating, forms a nanoscale smooth surface with Ra≤0.5μm, reducing the coefficient of friction to below 0.12 and minimizing wear from dust particles on the bag. The antistatic buffer layer 9, made of conductive carbon black-doped silicone rubber, has a surface resistivity ≤1×10^9Ω, dissipating static electricity accumulation; a Shore hardness of A70, absorbing over 30% of mechanical impact energy. The environmental isolation layer 10 is made of modified polyimide (PI) film with a thickness of 50-80μm; it has a temperature resistance range of -60℃ to +300℃, blocks the penetration of acid and alkali media, and has a water vapor permeability <0.5g / m². 2 ·day.

[0036] In a further preferred embodiment of this utility model, the transverse reinforcing layer 11 is made of carbon fiber bundles, the longitudinal reinforcing layer 12 is made of polyethylene, and the three-dimensional support layer 13 is made of basalt fiber three-dimensional braided fabric.

[0037] Furthermore, the transverse reinforcement layer 11 is made of T700 grade carbon fiber strands; its function is to increase the transverse tensile strength to 2500N / 5cm and the elastic modulus to 230GPa, suppressing the transverse tensile deformation of the bag; the longitudinal reinforcement layer 12 is made of ultra-high molecular weight polyethylene; its function is to increase the longitudinal tensile strength to 3000N / 5cm and the impact strength to 15 times that of steel, preventing the bag from tearing longitudinally; the three-dimensional support layer 13 is made of basalt fiber three-dimensional woven fabric; its function is to form a three-dimensional grid structure with a compressive strength >100MPa, effectively resisting the collapse and deformation of the bag.

[0038] In a further preferred embodiment of the present invention, the main load-bearing layer 14 is made of glass fiber, the stress dispersion layer 15 is made of aramid pulp nonwoven layer, and the interface adhesive layer 16 is made of epoxy resin and nano clay composite material.

[0039] Furthermore, the main load-bearing layer 14 is made of E-CR glass fiber, which provides basic strength with a tensile strength of 1800 N / 5 cm and high temperature resistance up to 280 °C, accounting for 60% of the total load-bearing capacity; the stress dispersion layer 15 is made of aramid pulp nonwoven layer, which serves to evenly diffuse local stress, reduce the stress concentration coefficient of the bag body by 40%, and prevent crack initiation; the interface bonding layer 16 is made of epoxy resin and nano clay composite material, which provides interlayer shear strength > 5 N / cm and enhances interlayer bonding through the "bridging effect" of nano clay.

[0040] Specifically, the surface wear-resistant layer 8 is made of modified polytetrafluoroethylene (PTFE) micro-powder coating, forming a nanoscale smooth surface with Ra≤0.5μm, reducing the coefficient of friction to below 0.12 and minimizing dust particle wear on the bag. The antistatic buffer layer 9 is made of conductive carbon black-doped silicone rubber, with a surface resistivity ≤1×10^9Ω, dissipating static electricity accumulation; it has a Shore hardness of A70, absorbing more than 30% of mechanical impact energy. The environmental isolation layer 10 is made of modified polyimide (PI) film with a thickness of 50-80μm, providing a temperature resistance range of -60℃ to +300℃, blocking the penetration of acid and alkali media, and a water vapor permeability <0.5g / m². 2 ·day.

[0041] The transverse reinforcement layer 11 is made of T700 grade carbon fiber strands; its function is to increase the transverse tensile strength to 2500N / 5cm and the elastic modulus to 230GPa, suppressing the transverse tensile deformation of the bag; the longitudinal reinforcement layer 12 is made of ultra-high molecular weight polyethylene; its function is to increase the longitudinal tensile strength to 3000N / 5cm and the impact resistance to steel to 15 times, preventing the bag from tearing longitudinally; the three-dimensional support layer 13 is made of basalt fiber three-dimensional woven fabric; its function is to form a three-dimensional grid structure with a compressive strength >100MPa, effectively resisting the collapse and deformation of the bag.

[0042] The main load-bearing layer 14 is made of E-CR glass fiber, which provides basic strength with a tensile strength of 1800 N / 5 cm and high temperature resistance up to 280℃, accounting for 60% of the total load-bearing capacity; the stress dispersion layer 15 is made of aramid pulp nonwoven layer, which serves to evenly diffuse local stress, reduce the stress concentration coefficient of the bag body by 40%, and prevent crack initiation; the interface bonding layer 16 is made of epoxy resin and nano clay composite material, which provides interlayer shear strength > 5 N / cm and enhances interlayer bonding through the "bridging effect" of nano clay.

[0043] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. Abrasion-resistant fiberglass bag, characterized in that: include; The fiberglass bag body (1) has two connecting handles (2) fixedly installed on the outside of the fiberglass bag body (1), and an extension cloth (3) fixedly installed on the inside of the fiberglass bag body (1). Reinforcing sewing thread (4) is provided at the connection between the fiberglass bag body (1), the connecting handles (2) and the extension cloth (3). The fiberglass bag body (1) includes a protective outer layer (5), a reinforcing middle layer (6) and a basic inner layer (7). The reinforcing middle layer (6) is disposed on one side of the protective outer layer (5), and the basic inner layer (7) is disposed on one side of the reinforcing middle layer (6). The protective outer layer (5) includes a surface wear-resistant layer (8), an antistatic buffer layer (9), and an environmental isolation layer (10). The antistatic buffer layer (9) is disposed on one side of the surface wear-resistant layer (8), and the environmental isolation layer (10) is disposed on one side of the antistatic buffer layer (9).

2. The wear-resistant fiberglass bag as described in claim 1, characterized in that: The reinforcing middle layer (6) includes a transverse reinforcing layer (11), a longitudinal reinforcing layer (12) and a three-dimensional support layer (13). The longitudinal reinforcing layer (12) is disposed on one side of the transverse reinforcing layer (11), and the three-dimensional support layer (13) is disposed on one side of the longitudinal reinforcing layer (12).

3. The wear-resistant fiberglass bag as described in claim 1, characterized in that: The basic inner layer (7) includes a main load-bearing layer (14), a stress-dispersing layer (15) and an interface bonding layer (16). The stress-dispersing layer (15) is disposed on one side of the main load-bearing layer (14), and the interface bonding layer (16) is disposed on one side of the stress-dispersing layer (15).

4. The wear-resistant fiberglass bag as described in claim 2, characterized in that: The transverse reinforcing layer (11) is made of carbon fiber bundles, the longitudinal reinforcing layer (12) is made of polyethylene, and the three-dimensional support layer (13) is made of basalt fiber three-dimensional braid.

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