A container liner bag for transporting asphalt

Abstract

The application relates to a container inner liner bag for transporting asphalt, belonging to the technical field of transporting asphalt, and solves the problems of asphalt adhesion, residue, leakage and bag body tearing. The bag body is composed of a polypropylene woven base layer and an inner silicon oil anti-adhesion layer, significantly reduces asphalt adhesion, and makes the unloading residue close to zero. The bag body adopts a modular design of a connecting bag, a first cover and a second cover. The first cover and the second cover are sewn on both ends of the connecting bag through a connecting assembly. Both ends of the connecting bag are inwardly folded to form flanges, and the flanges, the first cover or the second cover and the connecting bag body form three-layer overlapping sewing areas, greatly improving the seam strength. The sewing line is externally attached to a closed belt, and a closed layer is filled to double-seal pinholes and prevent asphalt leakage. The first cover is provided with a filling valve and a hanging rope for hoisting. The outer wall of the connecting bag is provided with a ring-shaped anti-explosion belt to constrain expansion. The first cover, the second cover and the connecting bag are additionally provided with strip-shaped anti-explosion belts at the joint positions to disperse stress and prevent tearing.

Description

Technical Field

[0001] This application relates to the technical field of transporting asphalt, and in particular to a container liner bag for transporting asphalt. Background Technology

[0002] In the asphalt transportation sector, the common method currently used is to transport asphalt using containers with inner liner bags. The containers are equipped with hooks for lifting the ton bags. During unloading, a crane is used to lift the container, open the unloading door at the bottom of the container, and cut open the bottom of the inner liner bag, allowing the asphalt to flow out under its own weight.

[0003] Currently, a key defect exists in the widely used inner lining bag materials on the market: their inner wall surface adheres to high-temperature liquid asphalt. During unloading, as the asphalt flows out under gravity, some of it adheres tightly to the inner wall of the lining bag, unable to flow down smoothly under its own weight. This portion of asphalt ultimately remains on the bag wall. This adhesion phenomenon results in a significant asphalt loss after each shipment. Utility Model Content

[0004] To reduce asphalt loss, this application provides a container liner bag for transporting asphalt.

[0005] The technical solution provided in this application for a container liner bag for transporting asphalt is as follows:

[0006] A container liner bag for transporting asphalt includes a bag body, the bag body comprising a base layer and an anti-sticking layer, the anti-sticking layer being connected to the base layer, the anti-sticking layer comprising a silicone oil layer, and the base layer comprising a woven layer.

[0007] By adopting the above technical solution, the base layer uses polypropylene woven fabric to provide structural support and tensile strength, serving as a carrier for asphalt; the silicone oil layer covers the inner surface of the base layer, thereby effectively reducing the adhesion between asphalt and the bag, so that the residual amount during unloading approaches zero.

[0008] Preferably, the bag body further includes a connecting bag, a first cap, and a second cap, wherein the first cap and the second cap are respectively sewn together at both ends of the connecting bag via a connecting assembly.

[0009] By adopting the above technical solution, the connecting bag serves as the main body of the bag, and the first and second caps are sewn together to form a closed chamber.

[0010] Preferably, the connecting assembly includes a first flange and a second flange; the first flange is connected to one end of the connecting bag, and the first cap is sewn onto the first flange; the second flange is connected to the other end of the connecting bag, and the second cap is sewn onto the second flange.

[0011] By adopting the above technical solution, the first and second flanges at both ends of the connecting bag are folded towards the inner cavity of the bag, so that when the first or second cap is sewn, it forms a three-layer overlapping sewing area with the folded layer of the connecting bag and the main body. This structure significantly improves the seam thickness and tear resistance, effectively resisting lifting tension and the impact of asphalt flow.

[0012] Preferably, both the first and second flanges have a sealing strip on the side facing away from the connecting bag, and the sealing strip is used to seal the sewing needle hole.

[0013] By adopting the above technical solution, the sealing tape covering the sewing area completely covers the sewing needle hole through physical adhesion; together with the sealant layer, it forms a double sealing barrier to prevent high-temperature asphalt from seeping out from the needle hole.

[0014] Preferably, a sealing layer is provided between the sealing strip and the connecting bag. The sealing layer is connected to both.

[0015] By adopting the above technical solution, the sealing layer located between the sealing strip and the connecting bag fills the micro gaps at the seam, and works in synergy with the sealing strip to enhance the sealing performance of pinholes, especially providing redundant protection against the tendency of asphalt penetration under high temperature environments.

[0016] Preferably, a filling valve is connected to the first cap.

[0017] By adopting the above technical solution, the filling valve set on the first cap is used to fill the bag with asphalt.

[0018] Preferably, the first cover is connected to a hanging rope that works with a hook inside the container.

[0019] By adopting the above technical solution, the hanging rope of the first cover is connected to the container hook, so as to achieve stable hoisting of the bag.

[0020] Preferably, the outer wall of the connecting bag is connected with an annular explosion-proof belt, and the first cap, the second cap and the connecting bag are connected with a strip explosion-proof belt.

[0021] By adopting the above technical solutions: circumferential explosion-proof tape: wrapped around the outer wall of the connecting bag, it restrains the radial expansion of the bag body under internal pressure and prevents it from bursting; strip explosion-proof tape: connects the seam of the first cap, the second cap and the connecting bag, and weakens the stress concentration in the sewing area through multi-directional tension dispersion, suppressing the risk of tearing of the cap connection seam due to asphalt shaking or hoisting.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By uniformly applying silicone oil to the inner wall of the bag, the silicone oil layer reduces the adhesion between the asphalt and the bag. During unloading, the asphalt can slide more smoothly and completely off the inner wall of the liner bag, significantly reducing the amount of asphalt remaining on the bag wall.

[0024] 2. The connecting bag, the first cap, and the second cap are designed as separate units and connected by sewing to form a modular structure. The hanging rope of the first cap is connected to the container hook to achieve stable lifting of the bag; the second cap is sealed to the bottom of the connecting bag, bears the weight of the asphalt and guides it to the unloading port to avoid unloading difficulties caused by bag deformation or displacement.

[0025] 3. After folding the upper and lower ends of the connecting bag into the inner cavity, sew the first and second covers to form a "three-layer fabric sewing area" (the first or second cover, the folded layer, and the connecting bag body), which greatly increases the thickness and connection strength of the sewing area and prevents the seam from tearing due to the impact of asphalt gravity. Attached Figure Description

[0026] Figure 1 This is an exploded view diagram used to illustrate the overall structure in Embodiment 1 of this application.

[0027] Figure 2 This is a partial cross-sectional view of Embodiment 1 of this application, used to illustrate the first cap and the connecting bag.

[0028] Figure 3 This is a partial cross-sectional view of Embodiment 1 of this application, used to illustrate the second cap and the connecting bag.

[0029] Figure 4 This is a schematic diagram of the overall structure used in Embodiment 1 of this application.

[0030] Figure 5 This is a schematic diagram of the overall structure used to illustrate Embodiment 2 of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Bag body; 11. Base layer; 12. Anti-stick layer; 13. Connecting bag; 131. First flange; 132. Second flange; 14. First cap; 141. Filling valve; 142. Hanging rope; 15. Second cap; 16. Sealing tape; 17. Sealing layer; 18. Circular explosion-proof tape; 19. Strip explosion-proof tape. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] Example 1

[0034] Embodiment 1 of this application discloses a container liner bag for transporting asphalt, referring to... Figures 1-3The bag includes a bag body 1, which is used to hold asphalt. The bag body 1 includes a base layer 11 and an anti-sticking layer 12. In this embodiment, the base layer 11 includes a woven layer made of polypropylene woven fabric. The anti-sticking layer 12 includes a silicone oil layer. The base layer 11 is used as a carrier for holding asphalt, and the silicone oil layer is used to reduce the asphalt adhering to the bag body 1.

[0035] Reference Figures 1-3 The bag body 1 also includes a connecting bag 13, a first cap 14, and a second cap 15. In this embodiment, the connecting bag 13 is a tubular bag with open ends, sewn from a single piece of polypropylene woven fabric. The first cap 14 and the second cap 15 are respectively connected to the two ends of the connecting bag 13 via a connecting assembly, and the ends of the first cap 14 and the second cap 15 are folded over and inserted into the connecting bag 13. The connecting assembly includes a first flange 131 and a second flange 132, which are integral with the connecting bag 13 and located at the two ends of the connecting bag 13, respectively. The first flange 131 and the second flange 132 are folded towards the inner cavity of the connecting bag 13.

[0036] Reference Figures 1-3 The first flange 131 and the second flange 132 are folded towards the inner cavity of the connecting bag 13, and then the first cap 14 and the second cap 15 are sewn on. This is equivalent to forming a three-layer fabric sewing area at the joint, consisting of the first cap 14 or the second cap 15, the folded layer of the connecting bag 13, and the main body of the connecting bag 13. This significantly thickens and reinforces the seam, greatly improving the connection strength between the connecting bag 13 and the first cap 14 and the second cap 15, and effectively preventing the seam from tearing or coming apart.

[0037] Reference Figures 1-3 A sealing tape 16 is affixed to the seams where the connecting bag 13 is sewn together, the seams where the first cap 14 is sewn to the connecting bag 13, and the seams where the second cap 15 is sewn to the connecting bag 13. The sealing tape 16 is located on the outside of the bag body 1. The function of the sealing tape 16 is to seal any needle holes left by the sewing, preventing asphalt from seeping out. Simultaneously, to enhance the sealing effect, a sealing layer 17 is provided between the seams and the sealing tape 16. This sealing layer 17 is a sealant layer formed by applying high-temperature adhesive; in this embodiment, the sealing tape 16 is a high-temperature resistant adhesive tape.

[0038] Reference Figure 4 Multiple hanging ropes 142 are fixedly connected to the upper top wall of the first cover 14. The hanging ropes 142 of the first cover 14 are connected to the container hooks to achieve stable hoisting of the bag body 1. A filling valve 141 is also connected to the upper top wall of the first cover 14. The filling valve 141 is set on the first cover 14 and is used to fill asphalt into the bag body 1.

[0039] The implementation principle of Example 1 is as follows: The core of this container liner bag for transporting asphalt lies in solving the problem of asphalt residue sticking to the wall. The inner wall of the bag body 1 is coated with a silicone oil layer, significantly reducing asphalt adhesion and ensuring that after the bottom of the bag is cut during unloading, the asphalt can flow almost completely down by gravity, greatly reducing residual loss. The main body of the bag body 1 is a tubular connecting bag 13, with its two ends folded inward to form thickened flanges. The first cap 14 and the second cap 15 are sewn onto these folded flanges, forming a three-layer overlapping stitched area of ​​"first cap 14 or second cap 15, folded layer, and bag body 1," greatly improving the connection strength and effectively preventing seam tearing during lifting or load-bearing. The first cap 14 is equipped with a filling valve 141 for injecting asphalt and a hanging rope 142 for connecting to the container hook for stable lifting. All sewing lines are double-sealed to prevent leakage: first, a sealing layer is applied to fill the gaps, and then high-temperature resistant tape is used to seal the needle holes, ensuring that no leakage occurs during asphalt transportation.

[0040] Example 2

[0041] Reference Figure 5 The difference between this embodiment and embodiment 1 is that an explosion-proof belt is fixedly connected to the outside of the bag body 1. Specifically, multiple strip-shaped explosion-proof belts 19 are fixedly connected between the first cover 14, the second cover 15 and the connecting bag 13, and multiple ring-shaped explosion-proof belts 18 are connected to the outer wall of the connecting bag 13 itself.

[0042] The implementation principle of Example 2 is as follows: High-temperature liquid asphalt will generate huge pressure and impact during transportation. The annular explosion-proof tape 18 is wrapped around the outside of the connecting bag 13 to resist the internal pressure and prevent the bag 1 from over-expanding or even bursting. The connection between the first cap 14, the second cap 15 and the connecting bag 13 is a weak point. Multiple strip explosion-proof tapes 19 at this connection are used to share the tensile force and prevent the connection seam from being torn open when the asphalt shakes or is hoisted.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container liner bag for transporting asphalt, characterized in that: The bag includes a bag body (1), which includes a base layer (11) and an anti-stick layer (12). The anti-stick layer (12) is connected to the base layer (11). The anti-stick layer (12) includes a silicone oil layer, and the base layer (11) includes a woven layer.

2. The container liner bag for transporting asphalt according to claim 1, characterized in that: The bag body (1) also includes a connecting bag (13), a first cap (14) and a second cap (15), the first cap (14) and the second cap (15) being connected to both ends of the connecting bag (13) by connecting components.

3. A container liner bag for transporting asphalt according to claim 2, characterized in that: The connecting component includes a first flange (131) and a second flange (132); The first flange (131) is connected to one end of the connecting bag (13), and the first cap (14) is sewn onto the first flange (131); the second flange (132) is connected to the other end of the connecting bag (13), and the second cap (15) is sewn onto the second flange (132).

4. A container liner bag for transporting asphalt according to claim 3, characterized in that: Both the first flange (131) and the second flange (132) have a sealing strip (16) on the side away from the connecting bag (13), and the sealing strip (16) is used to seal the sewing needle hole.

5. A container liner bag for transporting asphalt according to claim 4, characterized in that: A sealing layer (17) is provided between the sealing strip (16) and the connecting bag (13), and the sealing layer (17) is connected to both.

6. A container liner bag for transporting asphalt according to claim 2, characterized in that: A filling valve (141) is connected to the first cap (14).

7. A container liner bag for transporting asphalt according to claim 2, characterized in that: The first cover (14) is connected to a hanging rope (142) that works with the hook inside the container.

8. A container liner bag for transporting asphalt according to claim 7, characterized in that: The outer wall of the connecting bag (13) is connected with an annular explosion-proof belt (18), and a strip explosion-proof belt (19) is connected between the first cap (14), the second cap (15) and the connecting bag (13).

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