Structure for avoiding ore drawing blockage of branch draw shaft

Abstract

The utility model relates to the technical field of mining, in particular to a structure for avoiding ore drawing blockage of a branch draw shaft, which comprises a base plate and a sliding plate, the base plate is arranged along the length direction of a branch draw shaft body and is fixedly mounted in the branch draw shaft body, and the sliding plate is arranged on the base plate; a mounting groove is formed in the base plate, a mounting plate is movably arranged in the mounting groove, and the mounting plate is used for being connected with the sliding plate; at least one abutting unit is arranged between the bottom of the mounting groove and the mounting plate, and the abutting unit has the trend of driving the sliding plate to be away from the base plate; the side, deviating from the base plate, of the sliding plate is a smooth plane, and the problem that pits are prone to being formed in the bottom wall of an existing branch ore chute, and then branch ore sliding blockage is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a structure for preventing branch chute ore discharge from being blocked. Background Art

[0002] During the mining process, the transportation and hoisting of ore are key links in the entire production process, which directly determines the production efficiency and economic benefits of the mine. As the core facility for ore transportation, the stability and durability of the mine main chute are crucial to ensuring the continuity and safety of mine production. However, the main chute faces many challenges during operation, especially the frequent impact of high-speed ore on the shaft wall during ore falling. This high-intensity physical impact can easily cause damage to the shaft wall structure and affect the smooth transportation of ore. In order to alleviate the stress condition of the main chute and reduce the risk of direct damage, the mine design usually adopts the strategy of arranging multiple branch chutes on the side of the main chute; this layout allows the ore to gradually flow into the main chute from the middle section through the branch chutes, thereby dispersing the direct impact of the ore on the main chute. However, while this design protects the main chute to a certain extent, it also presents new challenges for the branch chutes. Specifically, during the formation and mining process, the ore surface often exhibits irregularities and unevenness due to various factors, including geological conditions, mining methods, and the physical properties of the ore itself. As the ore slides down the branch chutes, it exerts more complex and variable forces on the chute walls. This uneven stress accelerates the wear and damage of the chute walls. Over time, these minor damages accumulate and expand, eventually forming visible pits. The appearance of pits not only directly weakens the overall stability and load-bearing capacity of the chute structure, but also easily accumulates and retains ore, forming blockages and hindering the normal transportation of subsequent ore.

[0003] Therefore, in view of this, the inventors proposed a structure to avoid blockage of branch chute discharge, so as to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a structure to prevent branch chutes from being blocked, so as to solve the problem that pits are easily formed on the bottom wall of the existing branch chutes, thereby causing blockage of the branch chutes.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A structure for preventing branch chute ore discharge blockage includes a base plate and a slide plate arranged in a branch chute body, wherein the base plate is arranged along the length direction of the branch chute body and is fixedly mounted in the branch chute body, and the slide plate is arranged on the base plate;

[0007] The base plate is provided with a mounting groove, in which a mounting plate is movably arranged, and the mounting plate is used to be connected to the slide plate;

[0008] At least one abutting unit is provided between the bottom of the mounting groove and the mounting plate, and the abutting unit has a tendency to drive the slide away from the base plate;

[0009] The side of the slide plate facing away from the base plate is a smooth plane.

[0010] According to the above technical solution, the base plate is fixedly installed at the bottom of the branch chute body and extends along its length, providing a support structure for the slide. The slide is set on the base plate, and its side facing away from the base plate is polished into a smooth plane to reduce the friction between the ore and the slide during the sliding process, ensuring that the ore can pass smoothly and avoiding the risk of blockage during the transportation of the ore; in the installation groove, a mounting plate is movably arranged, which is connected to the slide, and together constitutes a support system that can be fine-tuned. At least one abutment unit is set between the bottom of the installation groove and the mounting plate. These abutment units can drive the slide away from the base plate to form a tiny gap. The existence of this gap provides a buffer space for the impact of the ore, effectively reducing the direct impact of the ore on the slide and the base plate; when the ore falls into the slide from the top of the branch chute, they will slide rapidly along the smooth surface of the slide. In this process, even if the impact force of the ore is large, due to the certain gap between the slide and the base plate, and the buffering effect of the abutment unit, the impact of the ore on the slide will be greatly weakened, protecting the structural integrity of the slide and the base plate.

[0011] Furthermore, the abutment unit includes symmetrically arranged elastic telescopic parts;

[0012] The elastic telescopic member includes a bottom cylinder, a slider, a first spring and a support rod, the bottom of the bottom cylinder is fixed to the mounting groove, the slider is slidably connected to the inside of the bottom cylinder, one end of the support rod is fixed to the slider, and the other end of the support rod is connected to the mounting plate;

[0013] The first spring is arranged in the bottom cylinder, one end of the first spring is connected to the lower surface of the bottom cylinder, and the other end of the first spring is connected to the slider. The first spring has a tendency to drive the slider to move upward.

[0014] Furthermore, a first guide rod is provided between the two bottom cylinders, and a second guide rod is provided between the two support rods. Sleeve rings are symmetrically slidably sleeved on the first guide rod and the second guide rod, and mutually intersecting rotating rods are hinged between adjacent sleeve rings.

[0015] A second spring is provided on the first guide rod and / or the second guide rod, and the second spring has a tendency to drive two adjacent sleeve rings to approach each other.

[0016] Furthermore, the number of the second springs is four;

[0017] Wherein, the two springs are sleeved on the first guide rod, and the two second springs are sleeved on the second guide rod.

[0018] Furthermore, a vibration exciter is provided on the mounting plate, and the vibration exciter can drive the mounting plate to vibrate.

[0019] Furthermore, elastic rubber pads are provided on both sides of the skateboard, and the elastic rubber pads can be elastically deformed when subjected to external force.

[0020] Furthermore, a connecting partition is provided between the mounting plate and the slide plate, the upper end of the connecting partition is fixed to the slide plate, and the lower end of the connecting partition is fixed to the mounting plate.

[0021] Furthermore, a buffer curtain is provided at the location where the branch chute body is connected to the main chute;

[0022] The buffer curtain includes a mounting strip, a fastener and a curtain plate. The fastener fixes the mounting strip on the main chute, and the curtain plate is movably connected to the mounting strip.

[0023] The mounting strip is securely fastened to the sidewall of the main chute using fasteners, providing a stable support point for the curtain panel. The curtain panel is then movably connected to the mounting strip, allowing it to swing or flip freely.

[0024] Furthermore, the angle between the branch chute body and the main chute is a, and the value range of a is 45 degrees to 60 degrees.

[0025] Furthermore, the slide plate is one or more of a manganese steel plate, a molybdenum steel plate, and a chromium-molybdenum-silicon-manganese steel plate.

[0026] According to the above technical solution, it has high strength, hardness and wear resistance, can withstand rock impact, and avoid damage to the branch chute body.

[0027] Beneficial effects of the utility model:

[0028] The utility model uses components such as a slide plate, an abutment unit and an exciter, and by setting the side of the slide plate away from the base plate to a smooth plane, it can effectively reduce the friction of the ore during the sliding process. The abutment unit can reduce the impact of the falling rock on the slide plate to a certain extent, ensuring that the ore can smoothly and quickly pass through the branch chute body into the main chute, thereby improving the transportation efficiency of the ore and greatly reducing the risk of production interruption due to blockage, providing a strong guarantee for the safe production of the mine.

[0029] 2. The utility model adopts a high-strength, wear-resistant slide plate, and sets elastic telescopic parts, guide rods, springs and other buffer structures between the slide plate and the base plate, which can effectively absorb and disperse the impact force generated when the ore falls, avoiding damage to the chute structure caused by long-term impact.

[0030] 3. The utility model effectively optimizes the ore processing process by reasonably setting the angle between the branch chute body and the main chute, and adopting designs such as buffer curtains. The selection of the angle ensures that the ore can slide down at an appropriate speed, avoiding blockage problems caused by too fast or too slow speed. The setting of the buffer curtain further reduces the impact caused by the falling ore, and also reduces dust pollution, providing strong support for the environmentally friendly production of the mine.

[0031] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the utility model to avoid branch chutes and main chutes;

[0033] Figure 2 This is a schematic cross-sectional view of a branch chute body in the structure for preventing branch chute ore discharge blockage according to the present invention;

[0034] Figure 3 The utility model is used to avoid the blockage of branch chute ore discharge structure. Figure 2 Partial schematic diagram of

[0035] Figure 4 The utility model is used to avoid the blockage of branch chute ore discharge structure. Figure 2 Schematic diagram of the structure of part B;

[0036] Figure 5 The utility model is used to avoid the blockage of branch chute ore discharge structure. Figure 1 Schematic diagram of the structure of part A.

[0037] Among them, the main chute 1, the branch chute body 2, the base plate 3, the mounting groove 31, the slide plate 4, the elastic rubber pad 41, the mounting plate 5, the abutment unit 6, the elastic telescopic part 61, the bottom cylinder 611, the slider 612, the first spring 613, the support rod 614, the first guide rod 621, the second guide rod 622, the second spring 623, the sleeve ring 624, the rotating rod 625, the exciter 7, the connecting partition 8, the buffer curtain 9, the mounting strip 91, the fastener 92, and the curtain plate 93. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0040] This embodiment proposes a structure to avoid blockage of branch chute discharge, such as Figures 1 to 4 As shown, a plurality of branch chute bodies 2 are provided on one side of the main chute 1, and the branch chute bodies 2 are connected to the main chute 1; a base plate 3 and a slide plate 4 are provided in the branch chute body 2, and the base plate 3 and the slide plate 4 are arranged along the length direction of the branch chute body 2, the base plate 3 is fixedly mounted on the inner bottom surface of the branch chute body 2, and the slide plate 4 is arranged on the base plate 3, and the side of the slide plate 4 facing away from the base plate 3 (that is, Figure 3 The upper surface of the middle slide 4 is a smooth plane; elastic rubber pads 41 are provided on both sides of the slide 4. The elastic rubber pads 41 can be elastically deformed when subjected to external force. During use, the impact of falling rocks may generate up and down or left and right pressure on the slide 4. By providing the elastic rubber pads 41, deformation can occur, thereby extending the service life of the slide 4.

[0041] Furthermore, the slide plate 4 is one or more of manganese steel plate, molybdenum steel plate, chromium-molybdenum-silicon-manganese steel plate; in this embodiment, the slide plate 4 is made of manganese steel plate, which has high strength, hardness and wear resistance, can withstand rock impact, and avoid damage to the bottom of the branch chute body 2.

[0042] like Figure 2 、 Figure 3 and Figure 4 As shown, the base plate 3 is provided with a mounting groove 31, in which a mounting plate 5 is movably disposed. A connecting partition 8 is provided between the mounting plate 5 and the slide plate 4. The upper end of the connecting partition 8 is fixedly connected to the slide plate 4, and the lower end of the connecting partition 8 is fixedly connected to the mounting plate 5. Of course, in a possible embodiment, the mounting plate 5, the slide plate 4, and the connecting partition 8 can also be an integrated structure.

[0043] like Figure 3 and Figure 4 As shown, at least one abutment unit 6 is provided between the bottom of the mounting groove 31 and the mounting plate 5, and the abutment unit 6 has a tendency to drive the slide 4 away from the base plate 3. According to the above technical solution, the base plate 3 is fixedly installed at the bottom of the branch chute body 2, extending along its length direction, providing a support structure for the slide 4, and the slide 4 is provided on the base plate 3, and its side facing away from the base plate 3 is polished into a smooth plane to reduce the friction between the ore and the slide 4 during the sliding process, ensuring that the ore can pass smoothly and avoiding the risk of blockage during the transportation of the ore; in the mounting groove 31, a mounting plate 5 is movably provided, which is connected to the slide 4, and together constitutes a support system that can reduce impact, and at least one is provided between the bottom of the mounting groove 31 and the mounting plate 5. The abutment units 6 can drive the slide 4 away from the base plate 3 to form a tiny gap. The existence of this gap provides a buffer space for the impact of the ore, effectively reducing the direct impact of the ore on the slide 4 and the base plate 3; when the ore falls onto the slide 4 from above the branch chute, they will slide down rapidly along the smooth surface of the slide 4. In this process, the impact force of the ore is very large. Due to the certain gap between the slide 4 and the base plate 3, and the buffering effect of the abutment unit 6, the impact of the ore on the slide 4 will also be greatly weakened, thereby protecting the structural integrity of the branch chute body 2.

[0044] As a preferred embodiment, the abutment unit 6 includes a symmetrically arranged elastic telescopic member 61; the elastic telescopic member 61 includes a bottom cylinder 611, a slider 612, a first spring 613 and a support rod 614, the bottom of the bottom cylinder 611 is fixed on the mounting groove 31, the slider 612 is slidably connected to the inside of the bottom cylinder 611, the bottom end of the support rod 614 is fixed on the slider 612, and the top of the support rod 614 is connected to the mounting plate 5; the first spring 613 is arranged in the bottom cylinder 611, the bottom end of the first spring 613 is connected to the lower surface of the bottom cylinder 611, and the top of the first spring 613 is connected to the slider 612, and the first spring 613 has a tendency to drive the slider 612 to move upward. According to the above technical solution, the bottom cylinder 611 is the main part of the elastic telescopic member 61 and is firmly fixed on the mounting groove 31. The slider 612 is slidably connected to the inside of the bottom cylinder 611 and can move up and down under the constraint of the bottom cylinder 611. The first spring 613 is the core component of the elastic telescopic member 61. It is arranged inside the bottom cylinder 611, one end of which is connected to the lower surface of the bottom cylinder 611 and the other end is connected to the slider 612. The first spring 613 has a strong elastic restoring force, which always maintains a tendency to drive the slider 612 to move upward. When the ore falls on the slide 4, the slide 4 will be subjected to a downward impact force, and this impact force will be transmitted through the mounting plate 5 and the support The rod 614 is transmitted to the slider 612. At this time, the first spring 613 will be compressed to absorb and store the energy generated by the impact of the ore; as the ore continues to slide down the slide 4 and the impact force gradually weakens, the first spring 613 begins to gradually restore its original length and drives the slider 612 and the support rod 614 to move upward together. During this process, the slider 612 will slide along the inner wall of the bottom cylinder 611 until the first spring 613 restores its elasticity. At this time, the slide 4 also returns to its initial position, ready to meet the next wave of ore impact; the elastic telescopic member 61 in the abutment unit 6 achieves effective buffering and dispersion of the impact force of the ore through its unique structure and working principle.

[0045] In a preferred embodiment, a first guide rod 621 is disposed between the two bottom cylinders 611, and a second guide rod 622 is disposed between the two support rods 614. Sleeve rings 624 are symmetrically and slidably mounted on both the first and second guide rods 621, 622. Intersecting rotating rods 625 are hingedly connected between adjacent sleeve rings 624. Second springs 623 are mounted on the first guide rod 621 and / or the second guide rod 622, tending to pull adjacent sleeve rings 624 toward each other. Preferably, four second springs 623 are provided in this embodiment, two of which are mounted on the first guide rod 621, and two of which are mounted on the second guide rod 622.

[0046] According to the above technical solution, this embodiment, based on the elastic telescopic member 61, adds first and second guide rods 621, 622, and their supporting structure, further enhancing the stability and cushioning effect of the abutment unit 6. The first guide rod 621 is connected between the two bottom cylinders 611, while the second guide rod 622 is connected between the two support rods 614. Sleeve rings 624 are slidably mounted on the first and second guide rods 621, 622, respectively. Adjacent sleeve rings 624 are interconnected by hinged rotating rods 625, forming a scissor-fork structure. When the slider 612 moves up and down within the bottom cylinder 611, the sleeve rings 624 and rotating rods 625 work together to further disperse and cushion the impact energy of the ore. The addition of second springs 623 adds further elastic restoring force to this structure. Four second springs 623 are respectively mounted on the first and second guide rods 621, 622, and tend to drive adjacent sleeve rings 624 toward each other. When the ore impacts the slide 4, the second spring 623 will be compressed, absorbing part of the impact energy, and dispersing this energy throughout the abutment unit 6 through the transmission of the sleeve ring 624 and the rotating rod 625. As the ore continues to slide down and the impact force weakens, the second spring 623 begins to gradually restore its original length, and drives the sleeve ring 624 and the rotating rod 625 to move together, so that the slide 4 returns to its initial position. During this process, due to the cross design of the rotating rod 625, they will squeeze each other and generate an outward force. This force can further disperse the impact energy of the ore, protect the slide 4 and the base plate 3 from damage, significantly improve the buffering effect and stability of the abutment unit 6, and provide a more reliable guarantee for safe production in the mine.

[0047] As a preferred embodiment, a vibrator 7 is provided on the mounting plate 5, which can drive the mounting plate 5 to vibrate, thereby preventing the ore from accumulating or sticking on the slide 4. Especially when the ore is humid or contains sticky substances, the vibration can help the ore slide more smoothly and reduce the risk of blockage. According to actual needs, mine workers can adjust the vibration frequency and amplitude of the vibrator 7 to avoid blockage during the ore transportation process.

[0048] As a preferred embodiment, a buffer curtain 9 is provided at the location where the branch chute body 2 is connected to the main chute 1;

[0049] The buffer curtain 9 includes a mounting bar 91, a fastener 92, and a curtain plate 93. The fastener 92 secures the mounting bar 91 to the main chute 1, and the curtain plate 93 is movably connected to the mounting bar 91. In this embodiment, the fastener 92 is preferably a bolt. The mounting bar 91 is firmly fixed to the side wall of the main chute 1 by the bolts, providing a stable support point for the curtain plate 93. The curtain plate 93 is movably connected to the mounting bar 91 and can swing or flip freely. When ore falls from the branch chute body 2 into the main chute 1, it will first impact the curtain plate 93 of the buffer curtain 9. After the impact, the curtain plate 93 will deform or swing to a certain extent, thereby effectively absorbing and dissipating the impact energy of the ore. This not only protects the side wall of the main chute 1 from direct impact by the ore, but also reduces the noise and dust generated by the falling ore, thus ensuring safe production in the mine.

[0050] As a preferred embodiment, Figure 1 As shown, the angle between the branch chute body 2 and the main chute 1 is a, and the value range of a is 45 degrees to 60 degrees.

[0051] According to the above technical solution, when the angle a is less than 45 degrees, the speed at which the ore slides down the slide plate 4 under the action of gravity will increase significantly. This excessively fast sliding speed will cause the ore to exert a huge impact force on the connection area between the branch chute body 2 and the main chute 1, which may destroy the structural integrity of the branch chute body 2 and the main chute 1, such as causing the well wall to rupture or the ore to splash; on the contrary, when the angle a is greater than 60 degrees, the resistance to the ore's sliding will increase, causing the ore's movement speed to slow down, and the ore will easily accumulate in the branch chute body 2, forming a blockage; the utility model adopts an angle of 45 to 60 degrees between the branch chute body 2 and the main chute 1, ensuring that the ore can slide down at an appropriate speed, and will neither damage the chute structure due to excessive speed nor cause blockage due to excessively slow speed, thereby ensuring the safety and stability of the chute system.

[0052] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A structure for preventing blockage of branch chute discharge, comprising a branch chute body (2) connected to a main chute (1), characterized in that: It comprises a base plate (3) and a slide plate (4) arranged in a branch chute body (2), wherein the base plate (3) is arranged along the length direction of the branch chute body (2), and the base plate (3) is fixedly installed in the branch chute body (2), and the slide plate (4) is arranged on the base plate (3); The base plate (3) is provided with a mounting groove (31), a mounting plate (5) is movably provided in the mounting groove (31), and the mounting plate (5) is used to be connected to the slide plate (4); At least one abutting unit (6) is provided between the bottom of the mounting groove (31) and the mounting plate (5), and the abutting unit (6) has a tendency to drive the slide plate (4) away from the base plate (3); The side of the slide plate (4) facing away from the base plate (3) is a smooth plane.

2. The structure for preventing branch chute ore discharge blockage according to claim 1 is characterized in that: The abutment unit (6) comprises symmetrically arranged elastic telescopic parts (61); The elastic telescopic member (61) comprises a bottom cylinder (611), a slider (612), a first spring (613) and a support rod (614); the bottom of the bottom cylinder (611) is fixed to the mounting groove (31); the slider (612) is slidably connected to the inside of the bottom cylinder (611); one end of the support rod (614) is fixed to the slider (612); and the other end of the support rod (614) is connected to the mounting plate (5); The first spring (613) is arranged in the bottom cylinder (611), one end of the first spring (613) is connected to the lower surface of the bottom cylinder (611), and the other end of the first spring (613) is connected to the slider (612), and the first spring (613) has a tendency to drive the slider (612) to move upward.

3. The structure for preventing branch chute ore discharge blockage according to claim 2 is characterized in that: A first guide rod (621) is provided between the two bottom cylinders (611), and a second guide rod (622) is provided between the two support rods (614). Sleeve rings (624) are symmetrically slidably sleeved on the first guide rod (621) and the second guide rod (622), and mutually intersecting rotating rods (625) are hinged between adjacent sleeve rings (624). A second spring (623) is provided on the first guide rod (621) and / or the second guide rod (622), and the second spring (623) has a tendency to drive two adjacent sleeve rings (624) to approach each other.

4. The structure for preventing branch chute ore discharge blockage according to claim 3 is characterized in that: The number of the second springs (623) is four; The two springs are sleeved on the first guide rod (621), and the two second springs (623) are sleeved on the second guide rod (622).

5. The structure for preventing branch chute ore discharge blockage according to claim 1 is characterized in that: A vibration exciter (7) is provided on the mounting plate (5), and the vibration exciter (7) can drive the mounting plate (5) to vibrate.

6. The structure for preventing blockage of branch chute ore discharge according to claim 5 is characterized in that: Elastic rubber pads (41) are provided on both sides of the slide plate (4), and the elastic rubber pads (41) are capable of elastic deformation when subjected to external force.

7. The structure for preventing blockage of branch chute ore discharge according to claim 1 is characterized in that: A connecting partition (8) is provided between the mounting plate (5) and the slide plate (4), the upper end of the connecting partition (8) is fixed to the slide plate (4), and the lower end of the connecting partition (8) is fixed to the mounting plate (5).

8. The structure for preventing branch chute ore discharge blockage according to claim 7 is characterized in that: A buffer curtain (9) is provided at the location where the branch chute body (2) is connected to the main chute (1); The buffer curtain (9) comprises a mounting strip (91), a fastener (92) and a curtain plate (93), wherein the fastener (92) fixes the mounting strip (91) on the main chute (1), and the curtain plate (93) is movably connected to the mounting strip (91).

9. The structure for preventing branch chute ore discharge blockage according to claim 7, characterized in that: The angle between the branch chute body (2) and the main chute (1) is a, and the value range of a is 45 degrees to 60 degrees.

10. The structure for preventing branch chute ore discharge blockage according to any one of claims 1 to 9, characterized in that: The slide plate (4) is one or more of a manganese steel plate, a molybdenum steel plate, and a chromium-molybdenum-silicon-manganese steel plate.

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