Silo structure
By using a combination of protective lining and grouting layer in the silo structure, the problem of easy damage to the silo structure is solved, efficient repair effect is achieved, the service life is extended and maintenance costs are reduced.
Patent Information
- Application Number
- CN202422730264.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Silo structures are prone to cracks, voids and deformation during use. Traditional repair methods can only provide temporary repairs, resulting in frequent shutdowns for maintenance and affecting production efficiency.
A combination structure of protective lining and grouting layer is adopted. The protective lining includes the first and second protective liners. Manganese steel plates of different thicknesses are spliced and welded to the silo body. The grouting layer fills the gap to form a high-strength repair solution.
Significantly extend the service life of the silo, reduce the probability of downtime for repairs, reduce long-term maintenance costs, improve production efficiency, and enhance structural stability and durability.
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Figure CN223423719U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of coal mining supporting construction, in particular to a silo structure. BACKGROUND
[0002] In the related art, the silo structure can be used for storing raw materials such as coal and gangue. The silo structure generally includes a cylindrical part and a funnel part located at the lower end of the cylindrical part. During use, a belt conveyor or other conveying structure is used to supply materials from the top to the inside of the silo structure, and the materials are discharged outward from the outlet below the funnel part.
[0003] During the feeding process, the coal, gangue and other materials directly fall from the top and directly hit the sidewall of the funnel part. In addition, when the silo is blocked, an air cannon is generally used to impact and remove the blocked materials. This process also causes damage to the sidewall of the silo structure.
[0004] Therefore, after long-term use, the silo structure is prone to cracks, cavities, deformation of the funnel part and other problems. The traditional repair method mainly focuses on local repair, which restores the function of the damaged part by using formwork support and concrete pouring. However, this method can only temporarily repair the surface problem and cannot fundamentally solve the structural damage, resulting in the silo problem again in a short time. That is, the conventional repair method mainly focuses on local repair, which cannot effectively prolong the service life of the silo and requires multiple repairs of the silo. Each repair of the silo structure requires downtime for maintenance, which seriously affects production efficiency. UTILITY MODEL CONTENTS
[0005] The main purpose of the utility model is to provide a silo structure to solve the problem of multiple repairs affecting production efficiency in the related art.
[0006] To achieve the above purpose, the utility model provides a silo structure, which includes: a silo body including a first cylinder segment and a second cylinder segment located below the first cylinder segment, the first cylinder segment has a first inner wall, the second cylinder segment has a second inner wall, the first inner wall extends along the vertical direction, and the second inner wall is inclined inward in the direction from top to bottom; a protective lining including a first protective lining plate arranged on the inner side of the first inner wall and spaced apart from the first inner wall, and a second protective lining plate arranged on the inner side of the second inner wall and spaced apart from the second inner wall, the thickness of the second protective lining plate is greater than the thickness of the first protective lining plate; a grouting layer connected between the silo body and the protective lining.
[0007] Furthermore, the first protective lining includes a plurality of first manganese steel plates spliced together, and the thickness of the first manganese steel plates is between 16 mm and 20 mm; and / or, the second protective lining includes a plurality of second manganese steel plates spliced together, and the thickness of the second manganese steel plates is between 20 mm and 22 mm.
[0008] Furthermore, the first protective lining includes a plurality of first manganese steel plates spliced together, and adjacent first manganese steel plates are welded together; and / or, the second protective lining includes a plurality of second manganese steel plates spliced together, and adjacent second manganese steel plates are welded together.
[0009] Furthermore, the thickness of the grouting layer is between 8 cm and 12 cm.
[0010] Furthermore, the silo structure also includes a connecting rod passing through the silo body and the first protective lining, and the connecting rod is welded to the first protective lining.
[0011] Furthermore, the silo structure further includes a connecting piece arranged on the outside of the silo body, and the outer end of the connecting rod passes outward from the silo body and is welded to the connecting piece.
[0012] Furthermore, the silo structure further includes a reinforcement ring arranged around the outer periphery of the silo body, and the outer end of the connecting rod passes outward from the silo body and is welded to the reinforcement ring.
[0013] Furthermore, the silo structure includes a plurality of reinforcement rings, which are spaced apart in the axial direction of the silo body.
[0014] Furthermore, the silo structure includes a plurality of connecting rods, the plurality of connecting rods including a plurality of first rods arranged at intervals along the circumferential direction of the first barrel segment and a plurality of second rods arranged at intervals along the circumferential direction of the first barrel segment, the plurality of first rods and the plurality of second rods are arranged at intervals in the axial direction of the first barrel segment, and the first rods and the second rods are staggered in the circumferential direction of the first barrel segment.
[0015] Furthermore, the silo structure further comprises a mesh filler provided at the damaged portion outside the silo body and a protective coating provided on the outer surface of the silo body and the outer surface of the mesh filler.
[0016] By applying the technical solution of the present invention, the silo body is the main structure of the silo structure, and the protective lining is arranged on the inner side of the silo body, which can bear the impact force of the falling materials, thereby preventing the falling materials from damaging the silo body. The protective lining is spaced apart from the silo body and connected to the silo body through a grouting layer, which can ensure the stability of the connection between the protective lining and the silo body and prevent the protective lining from falling from the silo body. The protective lining includes a first protective lining connected to the first inner wall of the first barrel section and a second protective lining connected to the second inner wall of the second barrel section, wherein the first barrel section is the cylindrical part of the silo body, and the first inner wall is subjected to a smaller impact; the second barrel section is the funnel part of the silo body, and the second inner wall is subjected to a larger impact, so that the thickness of the second protective lining is greater than that of the first protective lining, which can reduce the cost of the protective lining while achieving protection of the first and second inner walls. In this application, a protective lining that fully covers the inner wall of the silo body and a grouting layer connecting the protective lining and the silo body are used to replace the localized repair solutions in related technologies. This allows for high-strength repairs, thereby reducing the probability of subsequent downtime for repairs and ensuring production efficiency. Therefore, the technical solution of this application can effectively solve the problem of multiple repairs required in related technologies, which affects production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a silo structure according to the present utility model is shown;
[0019] Figure 2 Shown Figure 1 A schematic diagram of the three-dimensional structure of the silo structure from another angle;
[0020] Figure 3 Shown Figure 1 A schematic cross-sectional view of a portion of the silo structure;
[0021] Figure 4 Shown Figure 1 A schematic cross-sectional view of another part of the silo structure;
[0022] Figure 5 Shown Figure 4 An enlarged view of the silo structure at point A;
[0023] Figure 6 Shown Figure 1 Schematic diagram of the inner part of the silo structure;
[0024] Figure 7 Shown Figure 1 Schematic diagram of the outer part of the silo structure.
[0025] The above drawings include the following reference numerals:
[0026] 10. Silo body; 11. First cylinder section; 111. First inner wall; 12. Second cylinder section; 121. Second inner wall;
[0027] 20. Protective lining; 21. First protective lining; 22. Second protective lining;
[0028] 30. Grouting layer;
[0029] 40. Connecting rod; 41. First rod; 42. Second rod;
[0030] 50. Connecting piece;
[0031] 60. Reinforcement ring. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0034] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0035] like Figures 1 to 3 As shown, the present application provides a silo structure, and an embodiment of the silo structure of the present application includes: a silo body 10, a protective lining 20, and a grouting layer 30. The silo body 10 includes a first cylinder section 11 and a second cylinder section 12 located below the first cylinder section 11. The first cylinder section 11 has a first inner wall 111, and the second cylinder section 12 has a second inner wall 121. The first inner wall 111 extends in the vertical direction, and the second inner wall 121 is inclined inward from top to bottom. The protective lining 20 includes a first protective lining plate 21 arranged on the inner side of the first inner wall 111 and spaced apart from the first inner wall 111, and a second protective lining plate 22 arranged on the inner side of the second inner wall 121 and spaced apart from the second inner wall 121. The thickness of the second protective lining plate 22 is greater than that of the first protective lining plate 21. The grouting layer 30 is connected between the silo body 10 and the protective lining plate 20.
[0036] Using the technical solution of this embodiment, the silo body 10 serves as the main structure of the silo. The protective liner 20 is disposed inside the silo body 10 to withstand the impact of falling materials, thereby preventing damage to the silo body 10. The protective liner 20 is spaced apart from the silo body 10 and connected to the silo body 10 via a grouting layer 30, ensuring a secure connection between the protective liner 20 and the silo body 10 and preventing the protective liner 20 from falling off the silo body 10. The protective lining 20 includes a first protective lining 21 connected to the first inner wall 111 of the first cylinder section 11 and a second protective lining 22 connected to the second inner wall 121 of the second cylinder section 12, wherein the first cylinder section 11 is the cylindrical part of the silo body 10, and the impact on the first inner wall 111 is relatively small; the second cylinder section 12 is the funnel part of the silo body 10, and the impact force on the second inner wall 121 is relatively large, so the thickness of the second protective lining 22 is greater than that of the first protective lining 21, which can reduce the cost of the protective lining 20 while protecting the first inner wall 111 and the second inner wall 121. In this embodiment, a protective lining 20 that fully covers the inner wall of the silo body 10 and a grouting layer 30 connecting the protective lining 20 and the silo body 10 are used to replace the localized repair solutions in related technologies. This allows for high-intensity repairs, thereby reducing the probability of subsequent downtime for repairs and ensuring production efficiency. Furthermore, compared to solutions that require frequent subsequent maintenance, this significantly reduces the long-term maintenance costs of the silo structure (maintenance costs are reduced by approximately 40%), greatly reducing the long-term economic burden. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies of requiring multiple repairs that affects production efficiency.
[0037] Specifically, the silo body 10 in this embodiment refers to a silo structure that has cracks, cavities, etc. inside after a period of use. The technical solution of this embodiment is obtained after processing and treating the silo structure that has been damaged and needs to be repaired. The grouting layer 30 will fill the cracks, cavities, etc. on the silo structure.
[0038] During construction, the platform between the first barrel section 11 and the second barrel section 12 can be used. Figure 3 An opening is provided through the side wall of the first cylinder section 11 (at a height of approximately 20m) and a scaffolding structure is built outside the silo body 10. The upper end of the scaffolding structure corresponds to the height of the opening to facilitate the transportation of materials during construction. After construction is completed, the opening is sealed.
[0039] like Figure 1 and Figure 2As shown, the silo body 10 of this embodiment includes a first cylinder segment 11 and four second cylinder segments 12 arranged below the first cylinder segment 11, and each second cylinder segment 12 has a square cross section.
[0040] In this embodiment, the first protective lining 21 includes a plurality of first manganese steel plates spliced together, and the thickness of the first manganese steel plates is between 16 mm and 20 mm; the second protective lining 22 includes a plurality of second manganese steel plates spliced together, and the thickness of the second manganese steel plates is between 20 mm and 22 mm. Manganese steel plates have the advantages of high strength, good wear resistance, strong impact toughness, and corrosion resistance. Using the first manganese steel plates to splice the first protective lining 21 and using the second manganese steel plates to splice the second protective lining 22 can ensure the protective effect of the silo body 10. The thickness of the first manganese steel plate and the thickness of the second manganese steel plate are within the above-mentioned range, which can achieve protection of the first inner wall 111 and the second inner wall 121 while reducing the cost of the protective lining 20. Preferably, the thickness of the first manganese steel plate can be 16 mm, 18 mm, or 20 mm; the thickness of the second manganese steel plate can be 20 mm or 22 mm.
[0041] In this embodiment, the first protective liner 21 comprises a plurality of first manganese steel plates spliced together, with adjacent first manganese steel plates welded together. The second protective liner 22 comprises a plurality of second manganese steel plates spliced together, with adjacent second manganese steel plates welded together. Welding the plurality of first manganese steel plates and the plurality of second manganese steel plates together offers the advantages of reliable connection and ease of operation.
[0042] In this embodiment, the thickness of the grouting layer 30 is between 8 cm and 12 cm. Preferably, the thickness of the grouting layer 30 can be 8 cm, 10 cm or 12 cm. Among them, the grouting layer 30 uses C40 grouting material. The compressive strength of C40 grouting material is much higher than that of ordinary cement-based grouting material, and it can withstand heavy loads and high stresses. In addition, the C40 grouting material has good fluidity, and can well fill and reinforce damaged structures such as cracks and voids on the silo body 10, especially for deep structural damage, the repair effect is good. In addition, the C40 grouting material has micro-expansion, which can ensure the close combination between the silo body 10 and the protective lining 20 during the solidification process, avoid the occurrence of shrinkage cracks that affect the reinforcement effect, and has good durability, and can withstand the pressure and environmental impact of the materials inside the silo structure for a long time.
[0043] In the technical solution of this embodiment, a separate lining structure is formed using manganese steel plates. A high-flow, high-strength grouting material is used to fill the gap between the lining structure and the silo body 10. This significantly improves the structural stability and durability of the silo structure. This solution is suitable for various types of silo structures in industries such as coal, mining, and metallurgy, enabling effective repair regardless of the severity of damage. By comprehensively repairing the silo body 10, this embodiment effectively extends the service life of the silo body 10, increasing the overall strength of the silo structure by approximately 30% and at least doubling its durability.
[0044] like Figure 4 and Figure 5 As shown, the silo structure further includes a connecting rod 40 passing through the silo body 10 and the first protective liner 21, and the connecting rod 40 is welded to the first protective liner 21. The connecting rod 40 fixes the first protective liner 21 to the inner side of the first inner wall 111, facilitating the subsequent grouting operation to form the grouting layer 30.
[0045] like Figure 4 、 Figure 5 and Figure 7 As shown, the silo structure further includes a connecting piece 50 disposed on the outside of the silo body 10. The outer end of the connecting rod 40 extends outward from the silo body 10 and is welded to the connecting piece 50. The connecting piece 50 is disposed on the outside of the silo body 10. The ends of the connecting rod 40 are respectively welded to the first protective liner 21 and the connecting piece 50, forming a tensioning effect, so that the first protective liner 21 can be stably connected to the inner side of the silo body 10.
[0046] The connecting piece 50 may be a 5 cm×5 cm manganese steel sheet with a thickness of 16 mm.
[0047] like Figure 4 、 Figure 5 and Figure 7 As shown, the silo structure also includes a reinforcement ring 60 wrapped around the outer circumference of the silo body 10. The outer end of the connecting rod 40 extends outward from the silo body 10 and is welded to the reinforcement ring 60. The reinforcement ring 60 surrounds the outer side of the silo body 10, further enhancing the overall stability and deformation resistance of the silo body 10. The outer end of the connecting rod 40 is welded to the reinforcement ring 60, while the inner end of the connecting rod 40 is welded to the first protective liner 21, creating a tensioning effect that ensures a stable connection between the first protective liner 21 and the reinforcement ring 60 and the silo body 10.
[0048] The thickness of the reinforcement ring 60 is 200 mm.
[0049] like Figure 4 、 Figure 5 and Figure 7As shown, the silo structure includes a plurality of reinforcement rings 60, which are spaced apart in the axial direction of the silo body 10. Arranging a plurality of reinforcement rings 60 in the height direction of the silo body 10 can further enhance the overall stability and anti-deformation capability of the silo body 10.
[0050] Specifically, the outer ends of multiple connecting rods 40 all extend out of the silo body 10. For the connecting rods 40 with reinforcement rings 60 on the outside, the outer ends of the connecting rods 40 are welded to the reinforcement rings 60. For the connecting rods 40 located between the reinforcement rings 60, connecting plates 50 are provided and welded to the outer ends of the connecting rods 40.
[0051] like Figure 6 As shown, the silo structure includes a plurality of connecting rods 40, which include a plurality of first rods 41 spaced apart along the circumferential direction of the first barrel segment 11 and a plurality of second rods 42 spaced apart along the circumferential direction of the first barrel segment 11. The plurality of first rods 41 and the plurality of second rods 42 are spaced apart in the axial direction of the first barrel segment 11, and the first rods 41 and the second rods 42 are staggered in the circumferential direction of the first barrel segment 11. Figure 7 The first, third and fifth rows of connecting rods 40 are all first rods 41; Figure 7 The second, fourth and sixth rows of connecting rods 40 are all second rods 42, and the multiple connecting rods 40 are arranged in a manner that the first rods 41 and the second rods 42 are staggered in the circumferential direction, so that the force on the silo body 10 is more uniform.
[0052] In this embodiment, the silo structure also includes a mesh filler applied to damaged areas on the outside of the silo body 10, and a protective coating applied to the outer surface of the silo body 10 and the outer surface of the mesh filler. After extended use, the exterior of the silo body 10 may also become damaged. Since damage to the exterior of the silo body 10 is relatively shallow, conventional mesh filler can be used to repair the damaged areas. After the damaged areas are repaired, a protective coating is applied to the outer surfaces of the silo body 10 and the mesh filler, enhancing the overall weather resistance and corrosion resistance of the silo structure, ensuring the long-term use of the silo structure in harsh environments.
[0053] Specifically, the first protective lining 21 in this embodiment is formed by stacking first manganese steel plates layer by layer and injecting high-strength, high-fluidity grouting material between the first manganese steel plates and the silo body 10. The specific construction steps are as follows:
[0054] 1. Build scaffolding structures inside and outside the silo body 10 to ensure the safety of construction workers and facilitate material transportation;
[0055] 2. Clean the raw materials stored in the silo body 10 and open an opening on the side wall of the first cylinder section 11 to facilitate construction workers to enter and exit the silo body 10;
[0056] 3. Cut and reshape the exposed steel bars inside the silo body 10 and clean the damaged concrete area to ensure that the interior of the silo body 10 is clean and the structure is stable;
[0057] 4. Drill holes in the inner wall of the silo body 10 and insert connecting rods 40. The interval between the connecting rods 40 is 200 mm, and the length of the inner and outer ends of the connecting rods 40 exposed from the silo body 10 is about 150 mm.
[0058] 5. Process the manganese steel plates according to the arc shape of the inner wall of the first barrel section 11 to form multiple first manganese steel plates, and open grouting holes and connection holes for inserting the connecting rods 40 on the first manganese steel plates. Connect the first manganese steel plates to the connecting rods 40 by welding. Adjacent first manganese steel plates are also connected by welding to form an independent lining structure on the inner side of the first barrel section 11.
[0059] 6. Stir the grouting material in the prescribed proportion to ensure that the material is uniform and the performance meets the standards. Start pouring the grouting material layer by layer from the bottom of the first cylinder section 11, with each layer height of 1.2m, to ensure that the grouting material evenly fills the gap between the lining structure and the silo body 10;
[0060] 7. Use a vibrating rod to vibrate the grouting material to ensure that the grouting material is tightly filled without leaving any gaps, thereby improving the grouting quality;
[0061] 8. After each layer of grouting is completed, the grouting opening is sealed by welding and the weld is polished to ensure the welding quality and flatness;
[0062] 9. Install reinforcement rings 60 at different elevations on the outside of the silo body 10. The reinforcement rings 60 are welded to the outer ends of the connecting rods 40 to enhance the overall stability and deformation resistance of the silo structure.
[0063] 10. Use anti-cracking mesh cloth and polymer cement mortar to repair the damaged part of the outside of the silo body 10 so that the outer surface of the repaired silo body 10 is smooth and crack-free, and then apply anti-corrosion coating to enhance the durability and aesthetics of the silo structure.
[0064] The maintenance method for the inside and outside of the second barrel section 12 is similar to that for the first barrel section 11 , with the only difference being the cutting of the manganese steel plate. Other operations are the same and will not be described here.
[0065] The surface of the repaired silo structure is flat and smooth, the structural stability is greatly enhanced, and the repair effect is remarkable. Through the overall reinforcement and surface repair of the silo structure, safety hazards are eliminated and the service life is extended.
[0066] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0068] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.
[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A silo structure, characterized in that: include: The silo body (10) comprises a first cylinder section (11) and a second cylinder section (12) located below the first cylinder section (11), wherein the first cylinder section (11) has a first inner wall (111), and the second cylinder section (12) has a second inner wall (121), wherein the first inner wall (111) extends in a vertical direction, and the second inner wall (121) is arranged to be inclined inward from top to bottom; A protective lining (20) comprising a first protective lining plate (21) disposed on the inner side of the first inner wall (111) and spaced apart from the first inner wall (111), and a second protective lining plate (22) disposed on the inner side of the second inner wall (121) and spaced apart from the second inner wall (121), wherein the thickness of the second protective lining plate (22) is greater than the thickness of the first protective lining plate (21); A grouting layer (30) is connected between the silo body (10) and the protective lining (20).
2. The silo structure according to claim 1, characterized in that: The first protective lining (21) comprises a plurality of first manganese steel plates spliced together, wherein the thickness of the first manganese steel plates is between 16 mm and 20 mm; and / or, The second protective lining (22) comprises a plurality of second manganese steel plates spliced together, and the thickness of the second manganese steel plates is between 20 mm and 22 mm.
3. The silo structure according to claim 1, characterized in that: The first protective lining plate (21) comprises a plurality of first manganese steel plates spliced together, and adjacent first manganese steel plates are welded; and / or, The second protective lining (22) comprises a plurality of second manganese steel plates spliced together, and adjacent second manganese steel plates are welded together.
4. The silo structure according to claim 1, characterized in that: The thickness of the grouting layer (30) is between 8 cm and 12 cm.
5. The silo structure according to any one of claims 1 to 4, characterized in that: The silo structure further comprises a connecting rod (40) passing through the silo body (10) and the first protective lining (21), and the connecting rod (40) is welded to the first protective lining (21).
6. The silo structure according to claim 5, characterized in that: The silo structure further comprises a connecting piece (50) arranged on the outside of the silo body (10), and the outer end of the connecting rod (40) passes outward from the silo body (10) and is welded to the connecting piece (50).
7. The silo structure according to claim 5, characterized in that: The silo structure further comprises a reinforcement ring (60) arranged around the outer periphery of the silo body (10); the outer end of the connecting rod (40) passes outward from the silo body (10) and is welded to the reinforcement ring (60).
8. The silo structure according to claim 7, characterized in that: The silo structure comprises a plurality of reinforcement rings (60), and the plurality of reinforcement rings (60) are arranged at intervals in the axial direction of the silo body (10).
9. The silo structure according to claim 5, characterized in that: The silo structure includes a plurality of connecting rods (40), and the plurality of connecting rods (40) include a plurality of first rods (41) arranged at intervals along the circumferential direction of the first barrel segment (11) and a plurality of second rods (42) arranged at intervals along the circumferential direction of the first barrel segment (11). The plurality of first rods (41) and the plurality of second rods (42) are arranged at intervals in the axial direction of the first barrel segment (11), and the first rods (41) and the second rods (42) are staggered in the circumferential direction of the first barrel segment (11).
10. The silo structure according to any one of claims 1 to 4, characterized in that: The silo structure further comprises a mesh filler provided at a damaged portion outside the silo body (10) and a protective coating provided on the outer surface of the silo body (10) and the outer surface of the mesh filler.