Anti-impact lining rail fixing structure in ore storage bin

Abstract

The utility model belongs to the technical field of mine engineering, and particularly discloses an anti-impact lining rail fixing structure in an ore storage bin. A lining rail of the fixing structure is of an L-shaped structure, a plurality of longitudinal lining rails are arranged in a concrete silo wall at intervals, a plurality of transversely-arranged channel steel is fixed to the bottom face of the lining rail in the concrete silo wall in the length direction at intervals, a plurality of rooting hooks are of an n-shaped structure, and a plurality of rooting hooks are fixed to the positions, away from the lining rail, in an inner groove of the channel steel in the length direction at intervals. The end faces, extending out of the channel steel, of the rooting hooks are provided with hook bars hooked with steel bars in the concrete bin wall. The channel steel with the rooting hooks is embedded in the concrete bin wall and welded with the lining rail through the channel steel, so that the construction safety problem that an anti-impact lining rail needs to be arranged on a high ore bin can be solved, meanwhile, the situation that the interior of the ore bin is blocked due to the fact that the lining rail falls off when the ore bin is impacted by ore when the ore bin is used can be reduced, and the service life of the ore bin is prolonged. The device has the characteristics of simple structure, high impact resistance and convenience and safety in construction.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, specifically to a mine bin anti-impact lining rail fixing structure that is simple in structure, has strong impact resistance, and is convenient and safe to construct. Background Technology

[0002] In the infrastructure construction of mining projects, it is common practice to install an impact protection device during the construction of ore bins to reduce damage to the bin walls caused by falling ore, thereby protecting the bin structure, extending its service life, and ensuring safety. Traditional impact protection devices primarily involve laying pre-embedded rails inside the bin walls, followed by pouring steel fiber reinforced concrete. This absorbs impact energy and alters the material's trajectory, ultimately protecting the bin structure from damage. However, in actual construction, some ore bins have high walls with a vertical angle of 90°, and some even exceed 40 meters in height. The traditional construction process for impact protection devices involves welding the rails to the reinforcing steel bars within the bin walls. Due to the limited connection area between the steel bars and the rails, this method is prone to rail detachment during construction and actual use, affecting safety and causing blockages that disrupt normal production.

[0003] To address the aforementioned problems, existing technologies employ bolts to fix longitudinally arranged steel sections (i.e., liner rails) to the ore bin wall. This increases the connection surface between the steel sections and the bin wall, improving connection reliability and reducing the risk of steel sections detaching. Furthermore, buffer devices made of angle steel, channel steel, flat steel, or round steel are installed between the steel sections to replace the liner plates. This allows larger particles of ore that fall into the bin during production to be trapped in the gaps at the lower ends of the steel sections, while finer particles fill the gaps or accumulate on the buffer device. Subsequent ore entering the bin falls onto the earlier particles, thus protecting the bin itself. This extends the overall service life of the bin, reduces production costs, and decreases maintenance workload. However, the reliability of the bolt connection to the bin wall is not high, and there are certain safety risks during construction. Moreover, the limited connection surface between the steel sections and the bolts makes it difficult to effectively solve the problem of liner rails easily detaching, affecting safety and normal production. To address this, existing technologies include installing channel steel in the middle rail and welding anchor bars to the inner side of the channel steel flange. Then, lower flange bolt holes are drilled on the lower flange of the rail, and web bolt holes are drilled on the web of the channel steel. Bolts and nuts are then used to secure the wedge-shaped pads, pressure plates, and washers to the channel steel through the web bolt holes, lower flange bolt holes, and the wedge-shaped pads, pressure plates, and washers. This firmly fixes the rail to the mine wall, effectively preventing it from falling off, and the bolted connection simplifies the installation process. However, since both the channel steel web and the rail require drilling for bolting, the initial drilling process is cumbersome and reduces the strength of both the channel steel and the rail. Furthermore, the bolted connection requires additional components such as wedge-shaped pads, pressure plates, and washers to ensure reliable connection, resulting in a complex overall structure and a cumbersome connection process. Moreover, the bolted connection structure has a limited effective contact area between the rail and the channel steel, and the protruding bolt structure is easily damaged by ore impact, leading to a need to improve connection reliability.

[0004] Therefore, how to safely and securely install the pre-embedded rails of the mine bunker's anti-impact device during actual construction is a current research focus in the field of mining engineering. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a mine bin anti-impact lining rail fixing structure that is simple in structure, has strong impact resistance, and is convenient and safe to construct.

[0006] The present utility model is realized as follows: It includes channel steel, root hooks, lining rails, concrete bin walls, and reinforced concrete protection. The lining rail has an "L" - shaped structure. Multiple longitudinal lining rails are arranged at intervals within the concrete bin wall. Multiple transversely arranged channel steels are fixedly arranged at intervals along the length direction on the bottom surface of the lining rails within the concrete bin wall. Reinforced concrete protection is provided outside the ore bin within the concrete bin wall. The root hook has a "ji" - shaped structure. Multiple root hooks are fixedly arranged at intervals along the length direction within the inner groove of the channel steel away from the lining rail. Hook bars for hooking the steel bars within the reinforced concrete protection are provided on the end surfaces of the root hooks extending out of the channel steel.

[0007] Furthermore, the concrete bin wall is cast in layers along the height direction, and the height of each casting layer is equivalent to the longitudinal length of the corresponding lining rail. The lining rails within adjacent layers of the concrete bin wall are fixedly connected.

[0008] Furthermore, the lining rail includes a transverse section perpendicular to the concrete bin wall at the top and a longitudinal section extending longitudinally. The transverse section extends towards the inner side of the concrete bin wall, and the longitudinal section is arranged on the surface layer of the concrete bin wall.

[0009] Furthermore, the length L1 of the transverse section is 65 - 80% of the thickness of the concrete bin wall, and the length L2 of the longitudinal section is 2.5 - 3.0 m.

[0010] Furthermore, the splicing joint of the transverse section and the longitudinal section is welded on both sides, and the bottom of the rail is reinforced by double - side welding with ribbed steel bars.

[0011] Furthermore, multiple channel steels are arranged at equal intervals of 300 - 500 mm along the length direction of the longitudinal section, and the top surface of the channel steel is welded to the bottom surface of the longitudinal section in double - side welding for the whole length.

[0012] Furthermore, the length L3 of the top transverse bar of the root hook is 90 - 98% of the width of the bottom of the inner groove of the channel steel. The length L4 of the leg bars on both sides of the root hook is the total thickness of the concrete bin wall minus the thickness of the reinforced concrete protection layer. The length of the hook bar is 4 - 6 times the diameter of the root - hook steel bar.

[0013] Furthermore, the top transverse bar of the root hook is welded to the inner groove of the channel steel on both sides. The hook bars on both sides of the root hook have an "L" - shaped or "U" - shaped structure and are hooked and fixed to the steel bars within the concrete bin wall.

[0014] Furthermore, the lining rail is an H - shaped steel, an I - shaped steel, or a rail.

[0015] The beneficial effects of the present utility model:

[0016] 1. This utility model embeds channel steel with rooting hooks inside the concrete silo wall and welds the channel steel to the lining rail, making the connection between the lining rail and the silo wall stable and reliable. This effectively reduces the risk of lining rail detachment and the blockage problem inside the silo caused by lining rail detachment. Moreover, when the lining rail is subjected to strong impact from ore in a local area, the impact force of the ore can be dispersed to the entire silo wall through the joint surface between the lining rail and the channel steel, effectively reducing the possibility of local damage to the silo wall and improving the impact resistance of the silo wall.

[0017] 2. The channel steel, lining rail, and anchoring hook of this utility model can be prefabricated in a unified and standardized manner according to the design, which effectively reduces the workload of on-site construction. Moreover, the lining rail is processed in sections and combined with layered pouring construction, which not only makes the process highly integrated, thereby enhancing the fixing strength of the anti-impact device of the mine bin wall, but also ensures safe and efficient construction, and solves the construction safety problem of installing anti-impact lining rails in high mine bins.

[0018] 3. This utility model increases the effective contact area between the channel steel and the lining rail by welding the bottom surface of the lining rail to the top surface of the channel steel, thereby improving the connection reliability. It also avoids the strength reduction problem caused by drilling of the channel steel and the lining rail, and reduces the processing and installation problems caused by drilling. The welding connection also avoids the damage of bolted connections due to the impact of ore on the protruding structure. In addition, the anchoring hooks welded inside the channel steel and hooking with the reinforcing bars can further improve the reliability of the connection between the lining rail and the mine wall.

[0019] Therefore, this utility model has the characteristics of simple structure, strong impact resistance, and convenient and safe construction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 Left view before concrete was poured;

[0022] Figure 3 This is a schematic diagram of the rail liner structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the rooting hook structure of this utility model;

[0024] In the diagram: 1-channel steel, 2-rooting hook, 3-lined rail, 31-transverse section, 32-longitudinal section, 33-threaded steel, 34-double-sided welded seam, 4-concrete silo wall, 5-reinforced concrete protective layer. Detailed Implementation

[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1 to 4 shown, the present utility model includes a channel steel 1, a rooting hook 2, a lining rail 3, a concrete bin wall 4, and a reinforced concrete protection 5. The lining rail 3 has an "L" - shaped structure. Multiple longitudinal lining rails 3 are arranged at intervals inside the concrete bin wall 4. Multiple horizontally - arranged channel steels 1 are fixedly arranged at intervals along the length direction on the bottom surface of the lining rail 3 inside the concrete bin wall 4. A reinforced concrete protection 5 is arranged outside the ore bin inside the concrete bin wall 4. The rooting hook 2 has a "U" - shaped structure. Multiple rooting hooks 2 are fixedly arranged at intervals along the length direction inside the inner groove of the channel steel 1 away from the lining rail 3. Hook bars for hooking with the steel bars inside the reinforced concrete protection 5 are arranged on the end faces of the rooting hooks 2 extending out of the channel steel 1.

[0027] It should be noted that the outside of the ore bin is the outer wall of the ore bin, that is, the side without the lining rail 3.

[0028] The concrete bin wall 4 is cast in layers along the height direction, and the height of each casting layer is equivalent to the longitudinal length of the corresponding lining rail 3. The lining rails 3 in adjacent layers inside the concrete bin wall 4 are fixedly connected.

[0029] The fact that the height of each casting layer of the concrete bin wall 4 is equivalent to the longitudinal length of the corresponding lining rail 3 means that after casting, the upper end faces of the lining rails 3 in each casting layer can be exposed on the concrete surface and can be welded to the lower end faces of the lining rails 3 in the upper layer.

[0030] The lining rail 3 includes a transverse section 31 perpendicular to the concrete bin wall 4 at the top and a longitudinal section 32 extending longitudinally. The transverse section 31 extends towards the inside of the concrete bin wall 4, and the longitudinal section 32 is arranged on the surface layer of the concrete bin wall 4.

[0031] The length L1 of the transverse section 31 is 65 - 80% of the thickness of the concrete bin wall 4, and the length L2 of the longitudinal section 32 is 2.5 - 3.0 m.

[0032] The splicing part of the transverse section 31 and the longitudinal section 32 is welded on both sides, and the rail bottom is reinforced and welded on both sides with deformed steel bars 33.

[0033] Multiple channel steels 1 are arranged at equal intervals of 300 - 500 mm along the length direction of the longitudinal section 32, and the top surfaces of the channel steels 1 are welded to the bottom surfaces of the longitudinal section 32 in double - sided welding along the entire length.

[0034] The length L3 of the top horizontal bar of the rooting hook 2 is 90-98% of the width of the inner groove bottom of the channel steel 1. The length L4 of the leg bars on both sides of the rooting hook 2 is the total thickness of the concrete silo wall 4 minus the thickness of the reinforced concrete protective layer 5. The length of the hook bar is 4-6 times the diameter of the steel bar of the rooting hook 2. The top horizontal bar of the rooting hook 2 is welded on both sides to the inner groove of the channel steel 1. The hook bars on both sides of the rooting hook 2 are in an "L" shape or a "U" shape and are hooked and fixed to the steel bars inside the concrete silo wall 4.

[0035] The lining rail 3 is an H-shaped steel, an I-shaped steel or a rail.

[0036] As Figures 1 to 4 shown, the construction process of the present utility model is as follows:

[0037] S100: Divide the lining rail 3 into a transverse section 31 and a longitudinal section 32. The length L1 of the transverse section 31 is generally 65-80% of the thickness of the concrete silo wall 4, and the length L2 of the longitudinal section 32 is generally 2.5-3.0 m. Reserve a 10-12 mm gap between the transverse section 31 and the longitudinal section 32, and then set a center line with the center of the reserved middle section. Taking the rail surface as a plane at an angle of 45°, cut from the rail bottom to process into an inverted "V" groove. After cutting, carry out bending processing with the center line to process the lining rail 3 into an "L" shape, and use double-sided welding to weld the cut at the splicing joint. The rail bottom is processed by double-sided reinforcement welding with a 14# deformed bar 33.

[0038] S200: The rooting hook 2 is processed into a "U" shape with a 14# deformed bar. The length L3 of the top horizontal bar is the width of the inner groove of the channel steel 1. The length L4 of the leg bar of the rooting hook 2 is the total thickness of the concrete silo wall 4 minus the thickness of the reinforced concrete protective layer 5 to facilitate hooking and fixing the hook bar to the outer steel bars. The length of the hook bar bent at the bottom of the leg bar is processed according to 5 times the diameter of the deformed bar used for the rooting hook 2, which can meet the requirement of hanging on the steel bars of the ore bin wall.

[0039] S300: First, weld the top horizontal bar of the rooting hook 2 on both sides inside the inner groove of the channel steel 1. Install the channel steel 1 at equal intervals of 300-500 mm according to the length L2 of the longitudinal section 32 of the lining rail 3 between the lining rails 3 arranged on the concrete silo wall 4. At the same time, make the hook bar at the bottom of the rooting hook 2 hook with the steel bars inside the reinforced concrete protective layer 5, and finally use double-sided welding to weld and connect the hook bar of the rooting hook 2 with the steel bars.

[0040] S400: Place the processed lining rail 3 on top of the channel steel 1 from the bottom. The channel steel 1 has been installed at equal intervals according to the length L2 of the longitudinal section 32 of the lining rail 3. Then use double-sided welding to weld the top surface of the channel steel 1 and the bottom surface of the lining rail 3 for the full length; and make the transverse section 31 hang on the upper part of the channel steel 1 to form a stable installation of the lining rail 3.

[0041] S500: After completing steps S300 and S400, the impact protection device of the first-layer concrete silo wall 4 is installed and fixed, and then the pouring work of this layer is carried out. After the pouring is completed, the steel bars of the next layer of concrete silo wall 4 are laid out, and then the materials processed in steps S100 and S200 are used to install and fix the impact protection device of the next layer of concrete silo wall 4 according to steps S300 and S400.

[0042] S600: Construction continues until the top of the ore bin is completed, at which point the anti-impact device for the bin wall is installed and secured.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A shock-resistant lining rail fixing structure inside a mine bin, characterized in that: The structure includes channel steel (1), anchoring hooks (2), lining rails (3), concrete silo wall (4), and reinforced concrete protection (5). The lining rails (3) are L-shaped. Multiple longitudinal lining rails (3) are arranged at intervals inside the concrete silo wall (4). Multiple transversely arranged channel steels (1) are fixed at intervals along the length direction on the bottom surface of the lining rails (3) inside the concrete silo wall (4). Reinforced concrete protection (5) is provided on the outside of the silo inside the concrete silo wall (4). The anchoring hooks (2) are Z-shaped. Multiple anchoring hooks (2) are fixed at intervals along the length direction in the inner groove of the channel steel (1) away from the lining rails (3). The end face of the anchoring hooks (2) extending out of the channel steel (1) is provided with hook bars that hook with the reinforcing bars inside the reinforced concrete protection (5).

2. The anti-impact lining rail fixing structure inside the mine bin according to claim 1, characterized in that: The concrete silo wall (4) is formed by layering along the height direction, and the height of each layer is equivalent to the longitudinal length of the corresponding lining rail (3). The lining rails (3) in adjacent layers of the concrete silo wall (4) are fixedly connected.

3. The anti-impact lining rail fixing structure inside the mine bin according to claim 2, characterized in that: The liner (3) includes a transverse section (31) with its top perpendicular to the concrete silo wall (4) and a longitudinal section (32) extending longitudinally. The transverse section (31) extends into the inside of the concrete silo wall (4), and the longitudinal section (32) is disposed on the surface of the concrete silo wall (4).

4. The anti-impact lining rail fixing structure inside the mine bin according to claim 3, characterized in that: The length L1 of the transverse section (31) is 65-80% of the thickness of the concrete silo wall (4), and the length L2 of the longitudinal section (32) is 2.5-3.0m.

5. The anti-impact lining rail fixing structure inside the mine bin according to claim 3, characterized in that: The joint between the transverse section (31) and the longitudinal section (32) is welded on both sides, and the bottom of the rail is reinforced by double-sided welding with threaded steel (33).

6. The anti-impact lining rail fixing structure inside the mine bin according to claim 3, characterized in that: The longitudinal section (32) is provided with multiple channel steels (1) at equal intervals of 300-500mm along its length, and the top surface of the channel steels (1) is welded to the bottom surface of the longitudinal section (32) on both sides along its entire length.

7. The anti-impact lining rail fixing structure inside the mine bin according to claim 2, characterized in that: The length L3 of the top horizontal bar of the rooting hook (2) is 90 to 98% of the width of the bottom of the inner channel of the channel steel (1). The length L4 of the leg bars on both sides of the rooting hook (2) is the total thickness of the concrete silo wall (4) minus the thickness of the reinforced concrete protective layer (5). The length of the hook bar is 4 to 6 times the diameter of the reinforcing bar of the rooting hook (2).

8. The anti-impact lining rail fixing structure inside the mine bin according to claim 7, characterized in that: The top horizontal rib of the rooting hook (2) is welded to the inner groove of the channel steel (1) on both sides. The hook ribs on both sides of the rooting hook (2) are in an "L" or "U" shape and are hooked and fixed to the steel bars inside the concrete silo wall (4).

9. The anti-impact lining rail fixing structure inside the mine bin according to any one of claims 2 to 8, characterized in that: The liner (3) is an H-beam, I-beam, or steel rail.

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