A safety device for iron ore mining

Abstract

The utility model discloses a kind of for iron ore mining and selecting safety assurance device, including two protective plates, the upper end both sides of one of protective plates are equipped with H-shaped steel, the upper end middle part of H-shaped steel is equipped with hydraulic buffer cylinder, the upper end of hydraulic buffer cylinder is connected with U-shaped channel steel, the upper end both sides of two U-shaped channel steels are installed in the lower end both sides of another protective plate;One side of H-shaped steel is equipped with two hydraulic dampers, the upper end of hydraulic damper is detachably equipped with guide rod, the upper end of guide rod is through the lateral wall of H-shaped steel and is fixed in the lower end both sides of U-shaped channel steel;Multiple through holes are equipped with at the periphery of protective plate at equal intervals.The utility model solves the problem that traditional single-layer protective plate is easy to break, improves the sufficiency, firmness and strength of protection, improves the protection of low-frequency heavy blow at the same time, effectively prevents deformation, improves stability, avoids internal equipment from being damaged due to extrusion, and enhances practicality.

Description

Technical Field

[0001] This utility model relates to the field of iron ore mining and beneficiation safety assurance technology, and in particular to a safety assurance device for iron ore mining and beneficiation. Background Technology

[0002] Iron ore mining and beneficiation is a high-risk industry. Especially in open-pit or underground mining operations, falling rocks are one of the most common safety threats. Every year, about 30% of mine accidents worldwide are caused by falling rocks, resulting in deformation of protective covers, short circuits in equipment, and even casualties. Traditional protective devices often use a single steel plate structure, which is easily deformed under impact, indirectly damaging internal equipment (such as hydraulic pumps or sensors). To address these issues, we propose a safety protection device for iron ore mining and beneficiation. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a safety assurance device for iron ore mining and beneficiation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A safety device for iron ore mining and beneficiation includes two protective plates. I-beams are installed on both sides of the upper end of one of the protective plates. A hydraulic buffer cylinder is installed in the middle of the upper end of the I-beams. A U-shaped channel steel is connected to the upper end of the hydraulic buffer cylinder. The upper sides of the two U-shaped channel steels are installed on both sides of the lower end of the other protective plate. Two hydraulic dampers are installed on one side of the I-shaped steel. Guide rods are detachably installed on the upper end of the hydraulic dampers. The upper end of the guide rods penetrates the side wall of the I-shaped steel and is fixed to both sides of the lower end of the U-shaped channel steel. The protective plate has multiple through holes spaced at equal intervals around its perimeter.

[0005] Preferably, a bearing plate is fixed to the upper end of the hydraulic damper, a second connecting plate is fixed to the upper end of the bearing plate, a first connecting plate is fixed to the lower end of the guide rod, and a second screw is installed at each of the four corners of the lower end of the bearing plate. The upper ends of the second screws are connected to the second connecting plate and the first connecting plate.

[0006] Preferably, a U-shaped mounting bracket is fixed to the middle of the upper end of the I-beam, and the hydraulic buffer cylinder is mounted on the U-shaped mounting bracket.

[0007] Preferably, mounting plates are fixed on both sides of the upper end of the I-beam, and a guide rod on the same side passes through a mounting plate on the same side.

[0008] Preferably, the lower corners of the I-beam are each provided with a first screw, and the lower end of the first screw is connected to one of the protective plates.

[0009] Preferably, one of the protective plates has mounting holes at its four corners.

[0010] This utility model has the following advantages: 1. Modular design simplifies maintenance, reduces costs, facilitates replacement, and saves labor costs; 2. The double protective plates and through holes enhance the adequacy, robustness, and strength of the protection; 3. The hydraulic buffer cylinder and hydraulic damper enhance protection against low-frequency heavy impacts, effectively prevent deformation, improve stability, and avoid damage to internal equipment due to compression. In summary, this utility model solves the problem of easy breakage of traditional single-layer protective plates, improves the adequacy, robustness and strength of protection, enhances protection against low-frequency heavy impacts, effectively prevents deformation, improves stability, avoids damage to internal equipment due to compression, and enhances practicality. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram showing the connection structure between the U-shaped channel steel and the I-shaped steel of this utility model; Figure 3 This is a structural diagram of the hydraulic damper of this utility model.

[0012] In the diagram: 101 Protective plate, 102 Through hole, 103 Mounting hole, 201 I-beam, 202 First screw, 301 Hydraulic damper, 302 Mounting plate, 303 Guide rod, 304 First connecting plate, 305 Second connecting plate, 306 Second screw, 307 Bearing plate, 401 Hydraulic buffer cylinder, 402 U-shaped mounting bracket, 501 U-shaped channel steel, 502 Connecting hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Reference Figure 1-3 A safety device for iron ore mining and beneficiation includes two protective plates 101, one of which has I-beams 201 installed on both sides of its upper end. The I-beams 201 are made of low alloy steel and their I-beam design provides high bending stiffness and effectively disperses lateral impact force. A hydraulic buffer cylinder 401 is installed in the middle of the upper end of the I-beam 201. The upper end of the hydraulic buffer cylinder 401 is connected to a U-shaped channel steel 501. The upper ends of the two U-shaped channel steels 501 are installed on both sides of the lower end of another protective plate 101. The hydraulic buffer cylinder 401 absorbs the main impact energy. Two hydraulic dampers 301 are installed on one side of the I-shaped steel 201. A guide rod 303 is detachably installed on the upper end of the hydraulic damper 301. The upper end of the guide rod 303 passes through the side wall of the I-shaped steel 201 and is fixed to the lower ends of the U-shaped channel steel 501. The hydraulic damper 301 absorbs the remaining impact energy. The protective plate 101 has multiple through holes 102 at equal intervals around its perimeter. The through holes 102 are arranged in an equally spaced array (the hole diameter is usually 5-10 mm and the spacing is 15-20 cm). This is not only used for pressure relief during the initial impact (reducing the accumulation of peak pressure by 30-40%), but also allows debris and dust to escape, preventing secondary blockage. The upper end of the hydraulic damper 301 is fixed with a bearing plate 307, the upper end of the bearing plate 307 is fixed with a second connecting plate 305, the lower end of the guide rod 303 is fixed with a first connecting plate 304, and the lower end of the bearing plate 307 is equipped with a second screw 306 at each of the four corners. The upper end of the second screw 306 is connected to the second connecting plate 305 and the first connecting plate 304. A U-shaped mounting bracket 402 is fixed at the middle of the upper end of the I-beam 201. The hydraulic buffer cylinder 401 is installed on the U-shaped mounting bracket 402. The U-shaped mounting bracket 402 is formed by stamping and provides a stable base. Mounting plates 302 are fixed on both sides of the upper end of the I-beam 201. A guide rod 303 on the same side passes through a mounting plate 302 on the same side. The rigid structure of the guide rod 303 cooperates with the mounting plate 302 to form a "guide track" to limit the lateral displacement of the protective plate. The lower end of the I-beam 201 is provided with a first screw 202 through each of the four corners. The lower end of the first screw 202 is connected to one of the protective plates 101. The I-beam 201 disperses the lateral force, and the U-shaped channel steel 501 forms a closed loop to ensure that the impact force is evenly distributed. One of the protective plates 101 has mounting holes 103 at its four corners. The mounting holes 103 (diameter 20-25mm) are arranged in accordance with the standard spacing of mine supports, allowing the use of high-strength bolts to fix them to the mine roof or side wall.

[0015] In this invention, when falling debris hits the protective cover, the components work together to gradually absorb and disperse the impact energy, preventing deformation from being transmitted to the internal equipment. 1. Initial impact reception and guard plate response: The crushed stone first hits the upper protective plate 101. The through hole 102 is designed with pressure relief holes to allow air and debris to escape, reducing pressure accumulation. The impact force is then transmitted to the connected U-shaped channel steel 501, which is coupled to the lower protective plate 101 through the guide rod 303 and the hydraulic buffer cylinder 401. At this stage, the guide rod 303 directs the force to the hydraulic damper 301. The rigid structure of the guide rod 303 can prevent the protective plate from deflecting. 2. Energy absorption by hydraulic dampers: The impact force is transmitted to the hydraulic damper 301 through the guide rod 303. At this time, the piston movement inside the damper forces the oil to flow through the small hole, generating viscous resistance, which can absorb the impact energy and convert it into heat energy dissipation. 3. Secondary buffering and structural stability of the hydraulic buffer cylinder: Simultaneously, the force is transmitted to the hydraulic buffer cylinder 401 via the I-beam 201. This cylinder is mounted on the U-shaped mounting bracket 402 and provides vertical buffering. The compressed oil in the buffer cylinder generates a reaction force, pushing the U-shaped channel steel 501 upward. At the same time, the I-beam 201, as a "beam structure," uses its I-shaped cross-section to disperse the lateral force, while the U-shaped channel steel 501 is engaged with another protective plate 101, forming a closed loop to ensure that the impact force is evenly distributed and to avoid local overload. 4. Overall reset and protection maintenance: After the impact, the self-recovering characteristic of the hydraulic system resets the guide rod 303 and the bearing plate 307. The sliding design of the guide rod allows it to return to its original position after a small displacement, while the mounting hole 103 facilitates the overall fixing of the device to the mine support by bolts, ensuring that the protective cover does not change shape after multiple impacts and protecting the internal equipment (such as sensors or motors) from indirect damage.

[0016] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A safety device for iron ore mining and beneficiation, comprising two protective plates (101), characterized in that, One of the protective plates (101) has I-shaped steel (201) installed on both sides of its upper end. A hydraulic buffer cylinder (401) is installed in the middle of the upper end of the I-shaped steel (201). The upper end of the hydraulic buffer cylinder (401) is connected to a U-shaped channel steel (501). The upper ends of the two U-shaped channel steels (501) are installed on both sides of the lower end of the other protective plate (101). Two hydraulic dampers (301) are installed on one side of the I-beam (201). A guide rod (303) is detachably installed on the upper end of the hydraulic damper (301). The upper end of the guide rod (303) passes through the side wall of the I-beam (201) and is fixed to both sides of the lower end of the U-shaped channel steel (501). The protective plate (101) has multiple through holes (102) at equal intervals around its perimeter.

2. The safety device for iron ore mining and beneficiation according to claim 1, characterized in that: The upper end of the hydraulic damper (301) is fixed with a bearing plate (307), the upper end of the bearing plate (307) is fixed with a second connecting plate (305), the lower end of the guide rod (303) is fixed with a first connecting plate (304), and the lower end of the bearing plate (307) is equipped with a second screw (306) at each of the four corners. The upper end of the second screw (306) is connected to the second connecting plate (305) and the first connecting plate (304).

3. A safety device for iron ore mining and beneficiation according to claim 1, characterized in that: A U-shaped mounting bracket (402) is fixed at the middle of the upper end of the I-beam (201), and the hydraulic buffer cylinder (401) is mounted on the U-shaped mounting bracket (402).

4. A safety device for iron ore mining and beneficiation according to claim 1, characterized in that: Mounting plates (302) are fixed on both sides of the upper end of the I-beam (201), and a guide rod (303) on the same side passes through a mounting plate (302) on the same side.

5. A safety device for iron ore mining and beneficiation according to claim 1, characterized in that: The lower end of the I-beam (201) is provided with a first screw (202) at each of the four corners, and the lower end of the first screw (202) is connected to one of the protective plates (101).

6. A safety device for iron ore mining and beneficiation according to claim 1, characterized in that: One of the protective plates (101) has mounting holes (103) at its four corners.

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