Ton bag
By adjusting the position of the U-shaped reinforcing strips on the ton bags to avoid areas with weak stress, the problem of bag cutting failure was solved, and efficient and safe material transportation was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-20
AI Technical Summary
The U-shaped reinforcing strips covering the bottom wall of existing ton bags cause cutting failures, making them incompatible with new fixed cement production lines and posing safety hazards and low efficiency issues.
The two arms of the U-shaped reinforcement strip extend to the middle of the side and between the bottom wall, avoiding areas with weak stress and ensuring that the stress point of the bag is located on the upper side, thus increasing the success rate of bag cutting.
It improved the success rate of bag cutting, reduced the risk of tearing, enhanced safety and production efficiency, and ensured the smooth transportation of materials.
Smart Images
Figure CN224020458U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nuclear waste treatment technical field, especially a ton bag. BACKGROUND
[0002] Nuclear waste treatment refers to using various treatment technologies to dispose of the waste materials that are no longer needed and have radioactivity after nuclear fuel production, processing and nuclear reactor use. Among them, cement fixation is one of the main technologies for treating low and medium level radioactive solid waste, which has the advantages of stable process and simple operation. This technology mainly realizes the mode by transferring the ton bag containing nuclear waste fixation materials to the discharge port of the mixer, cutting it, then adding a certain proportion of water in the mixer to stir into cement fixation medium, and then injecting the cement fixation medium into the steel drum / steel box containing waste.
[0003] The traditional ton bag is mainly transported and cut by manual operation, which is not only low in efficiency, but also the mixer is often arranged at the second floor or higher position. During the cutting operation, personnel inevitably appear in complex operation conditions such as edge operation, high altitude operation, limited space operation, high dust environment operation, etc., which seriously affects the safety of personnel. In order to reduce the safety risk of operation site and improve the production efficiency, a new type of cement fixation production line with ton bag opening machine, pipe conveyor and large capacity mixer as core equipment has been gradually used. The production line hooks the U-shaped reinforcing strip of the ton bag through the electric hoist of the ton bag opening machine, so as to lift the ton bag and the nuclear waste fixation material in it into the ton bag opening machine. During the falling of the electric hoist, the nuclear waste fixation material is cut by the cutter at the bottom of the ton bag opening machine under the action of its own weight, realizing the conveying of the material in the pipe conveyor and the stirring of the large capacity mixer. The whole process is closed, manual operation is less, and the safety of the production site can be improved.
[0004] However, the ton bag on the market cannot match the above opening method, because the U-shaped reinforcing strip of the ton bag usually extends from the side of the ton bag to the bottom wall, wraps the bottom wall of the ton bag, and avoids tearing the seam between the bottom wall and the side during lifting, but the U-shaped reinforcing strip causes the ton bag to be unable to be cut smoothly by the cutter of the opening machine during the cutting process. Therefore, there is an urgent need for a ton bag that can ensure that the bottom wall and the side are not easily torn during lifting, and can be cut smoothly by the cutter. UTILITY MODEL CONTENTS
[0005] The utility model discloses a purpose is to solve above-mentioned technical problem, provide a ton bag, the two supporting arm of U-shaped reinforcing strip extends preset position, be located between the intermediate position of side body and bottom wall, to avoid the stress point of bag body from the suture line department of bottom wall and side body - stress weak area and above portion of the intermediate position of side body - expansion stress maximum area, guarantee ton bag firm and reliable while, bottom wall no reinforcing strip improves the cutting bag success rate is high.
[0006] To realize above-mentioned purpose, the utility model provides following scheme: the utility model discloses a ton bag, including bag body, the bag body includes the side body of reinforcing strip, the one end of side body is equipped with opening, the other end of side body is equipped with the bottom wall of no reinforcing strip, the tensile strength of reinforcing strip is greater than bag body, reinforcing strip includes annular reinforcing strip and U-shaped reinforcing strip, the annular reinforcing strip is close to opening, U-shaped reinforcing strip is along the circumferential spacing of side body and is arranged, two supporting arms of U-shaped reinforcing strip are fixedly connected with annular reinforcing strip, two supporting arms of U-shaped reinforcing strip extend towards bottom wall and extend to preset position, and the preset position is located between the intermediate position of side body and bottom wall.
[0007] Preferably, the preset position is located at 1 / 3 to 1 / 4 of the distance from the bottom wall to the side body.
[0008] Preferably, the U-shaped reinforcing strip is provided with four strips.
[0009] Preferably, the side body is cylindrical, and the two supporting arms of the U-shaped reinforcing strip are perpendicular to the radial direction of the side body.
[0010] Preferably, the side body is provided with a top wall at the end of the opening, the opening diameter is smaller than the top wall diameter, the opening is coaxially arranged in the middle of the top wall, a cylindrical interface is connected at the opening, and the annular reinforcing strip is adjacent to the top wall.
[0011] Preferably, the top wall and the side body, and the bottom wall and the side body are fixedly connected by stitching lines, and the stitching lines are arranged in 2-3 rows.
[0012] Preferably, the annular reinforcing strip and the U-shaped reinforcing strip are fixedly connected to the side body by Z-shaped stitching lines.
[0013] Preferably, it further includes a waterproof membrane, which is heat-fused to the inner side of the bag body.
[0014] Preferably, the tensile strength of the side body is not less than 2 times the loading weight of the bag body, and the tensile strength of the bottom wall is not less than 3 times the loading weight of the bag body.
[0015] Preferably, the tensile strength of the annular reinforcing strip and the U-shaped reinforcing strip is not less than 3 times the loading weight of the bag body.
[0016] The utility model discloses relative to prior art has obtained following technical effect:
[0017] The U-shaped reinforcing strip in the ton bag of the utility model does not extend and cover the bottom wall of the bag body any more, but extends between the middle position of the side body and the bottom wall, moves the stress point of the bag body to the top of the connecting place of the bottom wall and the side body, avoids the stress weak area of the sewing line of the bottom wall and the side body, makes the U-shaped reinforcing strip not covering the bottom wall of the bag body also can guarantee that the connecting place of the bottom wall and the side body will not tear, and the stress point of the bag body is also lower than the middle position of the side body, skillfully avoids the maximum stress area of the side body expansion, guarantees that the side body will not break, and the bottom wall has no reinforcing strip, then reduces the probability of bag cutting failure, improves the bag cutting success rate.
[0018] The utility model other scheme relative to prior art has obtained following technical effect:
[0019] 1. In the ton bag of the utility model, the side body is cylindrical, the bottom wall is round bottom, when the bag body is cut, there is no material accumulation in the bag, and the material in the bag can all flow out, and the conventional ton bag is mainly square or cuboid, and more material accumulation is stored in the four corners of the bottom, which can easily cause large deviation of dry material conveying amount.
[0020] 2. In the ton bag of the utility model, the safety is improved. After the reinforcing strip is rearranged, the constraint of the maximum stress area during material hoisting is increased, and the ton bag is firm and reliable under dynamic load. DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without paying creative labor for those skilled in the art.
[0022] Fig. 1 It is a perspective structure schematic view of the ton bag in the embodiments of the utility model.
[0023] Fig. 2 It is a perspective structure schematic view of the ton bag in the embodiments of the utility model.
[0024] Mark explanation: 1, side body, 2, top wall, 3, bottom wall, 4, U-shaped reinforcing strip, 5, annular reinforcing strip, 6, cylindrical interface. DETAILED DESCRIPTION
[0025] Clearly and completely, the technical solutions in the embodiments of the present application will be described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by analysis of those skilled in the art without creative labor belong to the scope of protection of the present application.
[0026] The utility model discloses a kind of ton bags, to solve the problems existing in prior art, U-shaped reinforcing strip no longer extends and covers the bottom wall of bag body, but extends between the middle position of side body and bottom wall, the stress point of bag body is moved to the top of the junction of bottom wall and side body, avoid the stress weak area of the line of bottom wall and side body and the maximum area of expansion stress above the middle position of side body, after reinforcing strip is rearranged, the constraint of maximum area of stress during material hoisting is increased, under dynamic load, ton bag is firm and reliable, side body cannot be easily disconnected, and bottom wall has no reinforcing strip, so as to reduce the probability of bag cutting failure, improve the success rate of bag cutting.
[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.
[0028] The present embodiment provides a kind of ton bags, such as Figs. 1-2As shown, the bag body includes a side body 1, one end of the side body 1 is provided with an opening, and the other end of the side body 1 is provided with a bottom wall 3. The side body 1 is provided with a reinforcing strip, and the bottom wall 3 is not provided with a reinforcing strip. The bottom wall 3 is only a closed bag bottom of the bag body and does not have any reinforcing structure (including reinforcing strips). The tensile strength of the reinforcing strip is greater than that of the bag body. The reinforcing strip includes a U-shaped reinforcing strip 4 and a ring-shaped reinforcing strip 5. The ring-shaped reinforcing strip 5 is close to the opening, and the U-shaped reinforcing strip 4 is arranged at intervals along the circumference of the side body 1. The two arms of the U-shaped reinforcing strip 4 are fixedly connected with the ring-shaped reinforcing strip 5, and the two arms of the U-shaped reinforcing strip 4 extend towards the bottom wall 3 and extend to a preset position between the middle position of the side body 1 and the bottom wall 3. When the bottom wall 3 of the bag body is placed downward and the opening is placed upward, the preset position is below 1 / 2 of the height of the side body 1 and above the bottom wall 3. The purpose of this is to make the two arms of the U-shaped reinforcing strip 4 move downward to avoid the position above 1 / 2 of the height of the side body 1 when hoisting the closed opening of the U-shaped reinforcing strip 4, so as to avoid the position above 1 / 2 of the height of the side body 1 (including 1 / 2 of the height of the side body 1), which is the maximum expansion stress area, thereby ensuring that the side body 1 will not be broken, and at the same time, the stress point is above the bottom wall 3, which can avoid the position of the bottom wall 3 and the side body 1, which is the stress weak area, thereby ensuring that the side body 1 and the bottom wall 3 will not be torn, so that the U-shaped reinforcing strip 4 does not need to be wrapped to the bottom wall 3, and can also prevent the side body 1 and the bottom wall 3 from being torn, and can also avoid the problem that it cannot be smoothly cut open.
[0029] In an embodiment, as shown in Figs. 1-2 the preset position is located at 1 / 3-1 / 4 of the distance from the bottom wall 3 to the side body 1. That is, when the bottom wall 3 of the bag body is placed downward and the opening is placed upward, the preset position is located at 1 / 3-1 / 4 of the height of the side body 1. This can avoid the position above 1 / 2 of the height of the side body 1, which is the maximum expansion stress area, and also avoid the position of the bottom wall 3 and the side body 1, which is the stress weak area. The preset position is neither too close to 1 / 2 of the height of the side body 1 nor too close to the position of the bottom wall 3 and the side body 1, thereby avoiding the problem of breakage caused by being too close.
[0030] In an embodiment, as shown in Figs. 1-2 the U-shaped reinforcing strip 4 is provided with four U-shaped reinforcing strips 4. The four U-shaped reinforcing strips 4 are evenly distributed circumferentially on the side body 1. The four U-shaped reinforcing strips 4 are reference values, and the number can be increased or decreased as needed.
[0031] In an embodiment, as shown in Figs. 1-2As shown, the side body 1 is cylindrical, the two arms of the U-shaped reinforcing strip 4 are perpendicular to the radial direction of the side body 1, that is, the two arms of the U-shaped reinforcing strip 4 extend along the axial direction of the side body 1, and the two arms of the U-shaped reinforcing strip 4 are parallel to each other. The conventional ton bag is mainly a cuboid structure, and after the ton bag is cut by the cutter of the bag opening machine, a large amount of material is left at the four corners of the bottom, which causes a large deviation in the dry material conveying amount. The ton bag is designed to be cylindrical, which can ensure that there is no residual material after the bag is cut.
[0032] In an embodiment, as shown in Figs. 1-2 The side body 1 is provided with an open end provided with a top wall 2, the diameter of the opening is smaller than the diameter of the top wall, the opening is coaxially arranged at the middle of the top wall 2, the opening is connected with a cylindrical interface 6, and the annular reinforcing strip 5 is adjacent to the top wall 2. The setting of the cylindrical interface 6 makes the type of the ton bag flat bottom small opening type. If the top is not provided with the cylindrical interface 6, and the diameter of the opening is the same as that of the side body 1, it is a flat bottom large opening type.
[0033] In an embodiment, as shown in Figs. 1-2 The bottom wall 3 is not provided with a reinforcing strip, which means that only the side body 1 is provided with a reinforcing strip, or only the side body 1 and the top wall 2 are provided with a reinforcing strip. The reinforcing strip on the top wall 2 can be a straight reinforcing strip, such as four straight reinforcing strips arranged in a cross shape on the top wall 2.
[0034] In an embodiment, as shown in Figs. 1-2 The top wall 2 and the side body 1, and the bottom wall 3 and the side body 1 are fixedly connected by stitching lines, and 2-3 stitching lines are arranged. Compared with 1 line, 2-3 lines can ensure the stitching strength of the bottom wall 3 and the side body 1, and compared with 4 lines, 2-3 lines can ensure that the stitching part of the bottom wall 3 and the side body 1 can be smoothly cut open.
[0035] In an embodiment, as shown in Figs. 1-2 The annular reinforcing strip 5 and the side body 1 are fixedly connected by Z-shaped stitching lines, the U-shaped reinforcing strip 4 and the side body 1 are also fixedly connected by Z-shaped stitching lines, and the annular reinforcing strip 5 and the U-shaped reinforcing strip 4 can also be fixedly connected by Z-shaped stitching lines. Z-shaped lines can increase the stitching strength.
[0036] In an embodiment, as shown in Figs. 1-2As shown, the waterproof film is heat-fused to the inner side of the bag body. If the top wall 2 and the cylindrical interface 6 are present, the waterproof film is heat-fused to the inner side of the side body 1, the top wall 2, the bottom wall 3, and the cylindrical interface 6. If the top wall 2 and the cylindrical interface 6 are not present, the waterproof film is heat-fused to the inner side of the side body 1 and the bottom wall 3. For conventional ton bags, to avoid the problem of material getting wet during transportation and storage, a waterproof film is placed inside the ton bag to isolate external moisture and water, and there is no direct connection between the waterproof film and the ton bag. During the cutting process of the ton bag by the cutting knife of the bag opening machine, the built-in waterproof film may not be cut through during the cutting process of the ton bag. The present embodiment heat-fuses the waterproof film to the inner wall of the ton bag, which not only ensures the moisture-proof effect but also avoids the phenomenon of not being cut through.
[0037] In an embodiment, as shown in the drawings, the tensile strength of the side body 1 is not less than 2 times the loading weight of the bag body, and the tensile strength of the bottom wall 3 is not less than 3 times the loading weight of the bag body. Figs. 1-2
[0038] In an embodiment, as shown in the drawings, the tensile strength of the side body 1 is not less than 2 times the loading weight of the bag body, and the tensile strength of the bottom wall 3 is not less than 3 times the loading weight of the bag body. Figs. 1-2
[0039] In an embodiment, as shown in the drawings, the tensile strength of the side body 1 is not less than 2 times the loading weight of the bag body, and the tensile strength of the bottom wall 3 is not less than 3 times the loading weight of the bag body. Figs. 1-2 Figs. 1-2
[0040] (1) First, according to the material density, bagging weight, and other parameters, the ton bag volume is determined. The material density is about 1.6 t / m 3 , and the ton bag needs to contain 1.6 t of material, so at least 1 m 3 volume of ton bag is required. Considering the requirement that the ton bag may be stacked on the pallet, the ton bag diameter is designed to be 1.2 m, and the height is about 0.9 m. To improve the redundancy of the ton bag, the height is increased by about 20% based on the design value, i.e. 1.1 m.
[0041] (2) The bag body / bag bottom material is cut according to the ton bag size. Considering the influence of dynamic load during loading and unloading, the material of the bag body (side body 1) is preferably a material with a tensile strength of at least 2 times the bagging weight, such as a polypropylene material base cloth with a tensile strength of ≥3000 N / 50 mm. The material of the bag bottom (bottom wall 3) is selected to have a tensile strength of at least 3 times the bagging weight, such as a polypropylene material base cloth with a tensile strength of ≥4500 N / 50 mm. Considering the convenience of material bagging, the opening is located at the center of the bag top (top wall 2), and the opening diameter is about 45 cm.
[0042] (3) Add a waterproof film (plastic film). The cut ton bag that is not sewn is heat-fused to the inner wall of the ton bag that is not sewn.
[0043] (4)Sewing line assembly sewing ton bag, wherein, bag body (side body 1), bag body (side body 1)-bag bottom (bottom wall 3), bag body (side body 1)-bag top (top wall 2)-sealing, 2-3 stitches, the stitching site is preferably coincident.
[0044] (5) According to the size of ton bag, five reinforcing strips are selected, the tensile strength of the reinforcing strip is not less than 3 times of the bag weight, such as polyester or polyamide material sling, the tensile strength of the polyester or polyamide material sling is greater than or equal to 24000N / root, and the elongation is less than 20%.
[0045] (6) Sewing reinforcing strip. Four reinforcing strips are rolled into U-shaped, the closed part of the U-shaped is upward, the two arms of the U-shaped are sewn from top to bottom with the side body 1, forming a U-shaped reinforcing strip 4, the closed part of the U-shaped reinforcing strip 4 is used for forklift, hoisting machinery loading and unloading, the two arms of the U-shaped reinforcing strip 4 extend to between 1 / 3 and 1 / 4 of the total height of the side body 1, and the other one is arranged in a circle along the position (the sewing position of the side body 1 and the top wall 2) on the ton bag and is sewn, forming a ring-shaped reinforcing strip 5. The reinforcing strip sewing adopts Z-shaped line arrangement to increase the sewing strength.
[0046] (7) Sealing of the sewing position. Turn the inside of the ton bag to the outside, and continue to cover the waterproof film (plastic film) to the sewing position by hot melting.
[0047] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A ton bag, characterized in that, The bag includes a bag body, which has a side body with a reinforcing strip. One end of the side body has an opening, and the other end of the side body has a bottom wall without the reinforcing strip. The tensile strength of the reinforcing strip is greater than that of the bag body. The reinforcing strip includes an annular reinforcing strip and a U-shaped reinforcing strip. The annular reinforcing strip is close to the opening, and the U-shaped reinforcing strip is spaced circumferentially along the side body. The two arms of the U-shaped reinforcing strip are fixedly connected to the annular reinforcing strip. The two arms of the U-shaped reinforcing strip extend toward the bottom wall and extend to a preset position. The preset position is located between the middle of the side body and the bottom wall.
2. The ton bag according to claim 1, characterized in that, The preset position is located at 1 / 3 to 1 / 4 of the distance between the side and the bottom wall.
3. The ton bag according to claim 2, characterized in that, The U-shaped reinforcing strip has four sections.
4. The ton bag according to any one of claims 1-3, characterized in that, The side body is cylindrical, and the two arms of the U-shaped reinforcing strip are perpendicular to the radial direction of the side body.
5. The ton bag according to claim 4, characterized in that, The side of the structure with the opening has a top wall, the diameter of the opening is smaller than the diameter of the top wall, the opening is coaxially arranged in the middle of the top wall, a cylindrical interface is connected to the opening, and the annular reinforcing strip is adjacent to the top wall.
6. The ton bag according to claim 5, characterized in that, The top wall and the side body, as well as the bottom wall and the side body, are fixedly connected by sutures, with 2 to 3 sutures.
7. The ton bag according to claim 5, characterized in that, Both the annular reinforcing strip and the U-shaped reinforcing strip are fixedly connected to the stitching on the side with Z-shaped stitching.
8. The ton bag according to claim 1, characterized in that, It also includes a waterproof membrane, which is heat-fused to the inside of the bag body.
9. The ton bag according to claim 1, characterized in that, The tensile strength of the sidewall is not less than twice the load weight of the bag body, and the tensile strength of the bottom wall is not less than three times the load weight of the bag body.
10. The ton bag according to claim 9, characterized in that, The tensile strength of the annular reinforcing strip and the U-shaped reinforcing strip shall not be less than three times the load weight of the bag.