A mine safety unblocking device and its use method

Abstract

The application discloses a kind of ore industry engineering technical field's safe dredging and blocking device of ore chute, the ore chute is equipped with table board, the dredging and blocking device includes: placing telescopic piece on table board;Fixed end of the telescopic piece is equipped with first pulley, the moving end of the telescopic piece is equipped with second pulley, the first pulley is wound with the pull rope for lifting explosive between second pulley;In the application, explosive is fixed in the area close to the bottom of ore by telescopic piece, so that the blasting is more accurate, improve the efficiency of dredging and blocking, and the operator does not need to be in the ore chute during blasting process, increase the safety during blasting process.

Description

Technical Field

[0001] This invention relates to the field of mining engineering technology, specifically to a safety unblocking device for ore chutes and its usage method. Background Technology

[0002] A mine pass is a tunnel through which ore is transported downwards by its own weight. As the main ore transport channel in a mine, the mine pass plays a crucial role in the mining process. If a mine pass becomes blocked for any reason, it will severely affect the normal operation of the mine and may even cause a shutdown. Currently, methods for dealing with mine pass blockages mainly include mechanical prying, drilling and blasting, blasting with explosive charges suspended by bamboo poles, blasting with explosive charges suspended by hydrogen balloons, and mining rockets. These methods are effective in dealing with mine pass blockages to a certain extent, but they still have significant safety risks and limitations.

[0003] Mechanical prying and bamboo pole-suspended explosive charge blasting methods address blockages at low heights but pose high safety risks; drilling and blasting methods are costly, complex to operate, and difficult to implement; hydrogen balloon-suspended explosive charge blasting and mining rocket blasting methods are difficult to control in terms of precision and have poor blasting effects on blockages.

[0004] The above methods have a low success rate. Operators need to enter the extremely dangerous area of ​​the ore pass to carry out the work, which poses a very high risk to personal safety. At the same time, they cannot achieve precise positioning for blasting and are prone to causing serious impact damage to the ore pass wall and adjacent structures. Prolonged storage exacerbates the compaction of ore in the ore pass and increases the difficulty of treatment. Summary of the Invention

[0005] The purpose of this invention is to provide a safe unblocking device for mine ore chutes and its usage method, in order to solve the problems mentioned in the background art, such as the low success rate of existing treatments and the need for operators to enter the extremely dangerous areas of the mine ore chutes for operation, which poses a very high risk to personal safety.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a safety unblocking device for a mine chute, wherein a platform is provided inside the mine chute, and the unblocking device includes: a telescopic component placed on the platform;

[0007] The telescopic component has a first pulley on its fixed end and a second pulley on its moving end. A rope for lifting explosives is wound between the first and second pulleys. When the telescopic component extends and contacts the bottom of the ore blocking the mine chute, and moves the second pulley upwards towards the bottom of the ore, the end of the rope outside the mine chute is pulled. Through the rolling of the first and second pulleys, the explosives wound on the other end of the rope are pulled up and brought close to the bottom of the ore for blasting to clear the blockage.

[0008] Preferably, the unblocking device further includes a base and a swing frame hinged to the base, with the telescopic member mounted on the swing frame.

[0009] Preferably, the telescopic component is detachably mounted on the swing frame.

[0010] Preferably, one end of the base is provided with two supports located on both sides of the swing frame. The two supports are provided with through holes on the side that is close to each other. The swing frame is U-shaped. The two outer sides of the swing frame are provided with insert rods for inserting into the through holes. The two inner sides of the swing frame are provided with clamping plates for clamping the telescopic component. The swing frame is provided with a cylinder for changing the distance between the two clamping plates. The cylinder is connected to an inflation component for controlling the operation of the cylinder.

[0011] Preferably, the bracket is equipped with a rangefinder and a camera, and the swing frame is equipped with a lighting lamp.

[0012] Preferably, the telescopic member is provided with a second pad and a first pad at its upper and lower ends, respectively.

[0013] Preferably, the base is provided with a limiting member for fixing the swing frame.

[0014] Preferably, the limiting member includes a frame mounted on the base, and the frame is provided with positioning pins for fixing the swing frame.

[0015] As a preferred embodiment, a method for using a mine chute safety unblocking device includes the following steps:

[0016] S1: After placing the telescopic component between the two clamping plates, the inflation component works, causing the cylinder to control the two clamping plates to move closer together and contact the telescopic component, thus fixing the telescopic component on the swing frame.

[0017] S2: Place the base on the platform, move the swing frame so that the telescopic component rotates parallel to the base, push the base so that the telescopic component enters the bottom of the ore blocking the mine chute through the opening, and then move the swing frame in the opposite direction so that the telescopic component rotates in the opposite direction to reset.

[0018] S3: After the moving base and swing frame move the telescopic component to the predetermined area, the inflation component works to inflate the telescopic component, causing it to extend and reach the bottom of the ore. The inflation component controls the cylinder to work, so that the two clamps move away from each other and do not contact the telescopic component, and the base and swing frame are moved away.

[0019] S4: Attach explosives to one end of the pull rope, move the other end of the pull rope to the outside of the ore pass and pull it. Guided by the rotation of the first pulley and the second pulley, the explosives rise close to the bottom of the ore and are then blasted to clear the blockage.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: In this application, the telescopic component is placed on a platform in the ore chute. The telescopic component extends and presses against the bottom of the ore blocking the ore chute, fixing the telescopic component in the blocked area of ​​the ore chute. The second pulley is brought close to the bottom of the ore. One end of the pull rope is pulled from the outside of the ore chute. The first and second pulleys rotate and guide the explosives tied to the other end of the pull rope, raising them close to the bottom of the ore for detonation. The explosives are fixed in the area close to the bottom of the ore by the telescopic component, making the detonation more precise and improving the efficiency of unblocking. Furthermore, the operator does not need to be in the ore chute during the detonation process, increasing the safety of the detonation process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the unblocking device of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the telescopic component and the swing frame of the present invention;

[0023] Figure 3 This is an enlarged schematic diagram of the structure at point A in this invention;

[0024] Figure 4 This is a schematic diagram of the working process of the unblocking device of the present invention.

[0025] In the diagram: 1. Telescopic component; 2. First pulley; 3. Second pulley; 4. Base; 5. Swing frame; 6. Limiting component; 61. Positioning pin; 7. Cylinder; 8. Clamping plate; 9. Lighting lamp; 10. Rangefinder; 11. Bracket; 12. Insert rod; 13. First pad; 14. Second pad; 15. Inflatable assembly; 16. Platform. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figure 1 and Figure 4 A safety unblocking device for a mine chute includes: a telescopic component 1; wherein, a platform 16 is provided inside the mine chute, and the telescopic component 1 is placed on the platform 16.

[0029] Please see Figure 1 and Figure 2The fixed end of the telescopic component 1 is provided with a first pulley 2, and the moving end of the telescopic component 1 is provided with a second pulley 3. A pull rope is wound between the first pulley 2 and the second pulley 3. One end of the pull rope passes through the first pulley 2 and the second pulley 3 in sequence from the bottom of the telescopic component 1, and then falls to the bottom of the telescopic component 1.

[0030] It should be noted that the first pulley 2, the second pulley 3, and the pull rope constitute a lifting assembly. One end of the pull rope is used to secure the explosive, and the other end extends to the outside of the ore pass. Pulling the pull rope from the outside of the ore pass, guided by the rolling of the first pulley 2 and the second pulley 3, lifts the explosive wrapped around the end of the rope, bringing it closer to the bottom of the ore. Because the telescopic component 1 extends and presses against the bottom of the ore blocking the ore pass, it is fixed in the blocked area. No operator is needed to support the telescopic component 1. Furthermore, during the blasting process, the operator only needs to pull the pull rope from the outside of the ore pass. Compared to the mechanical prying method and the suspended explosive charge method, there is no need to... When working below or near the mine shaft, operators can work in a relatively safe area using the installation device, effectively reducing safety risks and avoiding dangers such as injuries from falling rocks. Furthermore, by fixing the telescopic component 1 to the blocked area, the explosive can be moved closer to the bottom of the ore by pulling the rope, bringing the explosive closer to the ore and closer to an area suitable for blasting (the position of the explosive is determined by the installation position of the telescopic component 1; by fixing the telescopic component 1 to an area suitable for blasting in the blocked area, the explosive is brought closer to an area suitable for blasting). Compared with hydrogen balloons suspending explosive charges for blasting and mining rockets, this method has higher accuracy and success rate.

[0031] It should also be noted that the telescopic component 1 is a telescopic rod (which can be a multi-stage telescopic rod); the telescopic rod is made of PVC pipe to reduce the cost of the telescopic component 1. Since the telescopic component 1 will be damaged during the blasting process, the cost of the mine chute unblocking process is reduced by adjusting the material of the telescopic component 1.

[0032] In this embodiment, as a further optimization, please refer to... Figure 1 and Figure 2 The upper and lower ends of the telescopic component 1 are respectively provided with a second pad 14 and a first pad 13. The first pad 13 and the second pad 14 are both made of rubber, which can play a certain buffering role and protect the upper and lower ends of the telescopic component 1. At the same time, the first pad 13 and the second pad 14 can undergo a certain deformation, which can make the telescopic component 1 fully contact the uneven area to ensure the stability of the installation of the telescopic component 1.

[0033] Example 2

[0034] As a further optimization of Example 1, please refer to Figure 1 and Figure 2The unblocking device also includes a base 4 and a swing frame 5 hinged to the base 4. The telescopic component 1 is installed on the swing frame 5. By installing the telescopic component 1 on the swing frame 5, the position of the telescopic component 1 can be changed during operation by adjusting the angle of the swing frame 5 and the position of the base 4, thereby accurately adjusting the position of the top of the telescopic component 1 and the blockage. By accurately blasting the blockage, the success rate of unblocking can be improved.

[0035] In this embodiment, as a further optimization, please refer to... Figure 1 and Figure 2 The telescopic component 1 can be detachably installed on the swing frame 5, so that the connection between the telescopic component 1 and the swing frame 5 can be disconnected. After the telescopic component 1 is installed in the predetermined area, the connection between the telescopic component 1 and the swing frame 5 can be disconnected, so that the base 4 and the swing frame 5 can be removed, ensuring that the two can be reused. This makes the telescopic component 1 the only vulnerable part during the blasting process, effectively reducing costs.

[0036] In this embodiment, as a further optimization, please refer to... Figure 1 and Figure 2 Two supports 11 are provided at one end of the base 4, and the two supports 11 are located on both sides of the swing frame 5. The sides of the two supports 11 that are close to each other are provided with insertion holes. The swing frame 5 is U-shaped (the swing frame 5 includes a handrail and two mounting brackets symmetrically installed on one side of the handrail). The sides of the two mounting brackets that are far from each other are provided with insertion rods 12, which are inserted into the insertion holes (the insertion rods 12 fit against the insertion holes but are not connected, that is, the insertion rods 12 can move and rotate within the insertion holes). The sides of the two mounting brackets that are close to each other are provided with clamps. 8. A cylinder 7 is provided between the two mounting brackets, and an inflation component 15 (such as an air pump) is connected to the cylinder 7. The inflation component 15 is used to control the extension and retraction of the cylinder 7, thereby changing the distance between the two mounting brackets and thus changing the distance between the two clamping plates 8. When the two clamping plates 8 are brought together, the clamping plates 8 contact the telescopic component 1, fixing the telescopic component 1 between the two clamping plates 8, thereby connecting the swing frame 5 to the telescopic component 1. When the two clamping plates 8 are moved away from each other, the clamping plates 8 do not contact the telescopic component 1, disconnecting the connection between the swing frame 5 and the telescopic component 1.

[0037] It should be noted that the distance between the two supports 11 is constant. When the swing frame 5 moves forward or backward, the insertion rod 12 cannot be moved out of the insertion hole, ensuring that the swing frame 5 and the support 11 are properly connected (hinged).

[0038] In this embodiment, as a further optimization, please refer to... Figure 1 , Figure 2 and Figure 3The bracket 11 is equipped with a rangefinder 10 and a camera, and the swing frame 5 is equipped with a lighting lamp 9. The lighting lamp 9 can illuminate the blocked area of ​​the ore chute, making the rangefinder 10 and the camera observe more clearly. The camera can be used to photograph the condition of the bottom of the blocked ore chute and feed it back to the operator. At the same time, the rangefinder 10 is used to measure the distance from the rangefinder 10 to the bottom of the ore, so that the operator can select the appropriate length of the telescopic component 1. Based on the feedback from the rangefinder 10 and the camera, the installation area of ​​the telescopic component 1 is determined to improve the accuracy of blasting.

[0039] In this embodiment, as a further optimization, please refer to... Figure 1 and Figure 2 The base 4 is equipped with a limiting component 6;

[0040] The limiting component 6 includes a frame mounted on the base 4. The frame is U-shaped and is fitted onto the outside of a mounting bracket. Several sets of limiting holes are provided on the frame, distributed from top to bottom. Positioning pins 61 are inserted into the limiting holes. There are two positioning pins 61, which are located on the upper and lower sides of the mounting bracket, respectively, to limit the mounting bracket and thus fix the swing bracket 5 so that it will not rotate easily. When it is necessary to rotate the swing bracket 5, the positioning pins 61 are removed from the limiting holes.

[0041] Please see Figure 4 A method for using a mine chute safety unblocking device, specifically including the following steps:

[0042] Step 1: Place base 4 on platform 16, move base 4 so that lighting lamp 9, rangefinder 10 and camera can enter under the ore blocking the ore chute; lighting lamp 9 illuminates the area under the ore, rangefinder 10 measures the distance to the bottom of the ore to select a suitable length of telescopic component 1, and camera takes pictures of the bottom of the ore and sends them back to the operator; using the information from rangefinder 10 and camera, select a suitable area to install telescopic component 1.

[0043] The second step is to place the telescopic component 1 between the two clamping plates 8, and then the inflation component 15 will work to make the cylinder 7 control the two clamping plates 8 to move closer to each other and contact the telescopic component 1, thus fixing the telescopic component 1 on the swing frame 5.

[0044] Third step: Place the base 4 on the platform 16, move the swing frame 5 so that the telescopic component 1 rotates parallel to the base 4, push the base 4 so that the telescopic component 1 enters the bottom of the ore blocking the mine chute through the opening, and then move the swing frame 5 in the opposite direction so that the telescopic component 1 rotates in the opposite direction to reset.

[0045] Step 4: After moving the base 4 and swing frame 5 to the predetermined area (the predetermined area refers to the installation area determined based on feedback), the inflation component 15 works to inflate the telescopic component 1, causing it to extend and reach the bottom of the ore. After fixing the telescopic component 1 in the blocked area, the inflation component 15 controls the cylinder 7 to work, so that the two clamping plates 8 are separated from each other and do not contact the telescopic component 1. The connection between the swing frame 5 and the telescopic component 1 is disconnected, and then the base 4 and the swing frame 5 are moved away.

[0046] Step 5: Tie explosives to one end of the rope, move the other end of the rope to the outside of the ore pass and pull it. Guided by the rotation of the first pulley 2 and the second pulley 3, the explosives rise close to the bottom of the ore and are then blasted to clear the blockage.

[0047] It should be noted that this application has the advantages of low safety risk, simple operation, low construction difficulty, low cost, high success rate of unblocking, fast efficiency, strong applicability and wide range of treatment when unblocking chutes.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety unblocking device for a mine chute, wherein a platform (16) is provided inside the mine chute, characterized in that: The unblocking device includes: a telescopic component (1) placed on the platform (16); The telescopic component (1) has a first pulley (2) on its fixed end and a second pulley (3) on its moving end. A rope for lifting explosives is wound between the first pulley (2) and the second pulley (3). The telescopic component (1) extends to contact the bottom of the ore blocking the mine chute and moves up with the second pulley (3) to the bottom of the ore. Then, the rope is pulled at one end outside the mine chute. The first pulley (2) and the second pulley (3) roll together to pull up the explosives wound at the other end of the rope, bringing them close to the bottom of the ore for blasting and unblocking. The unblocking device also includes a base (4) and a swing frame (5) hinged to the base (4), and the telescopic component (1) is detachably installed on the swing frame (5); The base (4) has two supports (11) on one end, which are respectively located on both sides of the swing frame (5). The two supports (11) are provided with insertion holes on the side that is close to each other. The swing frame (5) is U-shaped. The two outer sides of the swing frame (5) are provided with insertion rods (12) for inserting into the insertion holes. The two inner sides of the swing frame (5) are provided with clamping plates (8) for clamping the telescopic component (1). The swing frame (5) is provided with a cylinder (7) for changing the distance between the two clamping plates (8). The cylinder (7) is connected to an inflation assembly (15) for controlling the operation of the cylinder (7). The bracket (11) is equipped with a rangefinder (10) and a camera, and the swing frame (5) is equipped with a lighting lamp (9).

2. The safety unblocking device for mine ore chutes according to claim 1, characterized in that: The upper and lower ends of the telescopic component (1) are respectively provided with a second pad (14) and a first pad (13).

3. The safety unblocking device for mine ore chutes according to claim 1, characterized in that: The base (4) is provided with a limiting member (6) for fixing the swing frame (5).

4. A mine chute safety unblocking device according to claim 3, characterized in that: The limiting member (6) includes a frame mounted on the base (4), and the frame is provided with a positioning pin (61) for fixing the swing frame (5).

5. A method of using a mine chute safety unblocking device, comprising the mine chute safety unblocking device as described in any one of claims 1-4, characterized in that: Specifically, the following steps are included: S1: After placing the telescopic component (1) between the two clamps (8), the inflation component (15) works, causing the cylinder (7) to control the two clamps (8) to move closer to each other and contact the telescopic component (1), thus fixing the telescopic component (1) on the swing frame (5). S2: Place the base (4) on the platform (16), move the swing frame (5) so that the telescopic part (1) rotates parallel to the base (4), push the base (4) so ​​that the telescopic part (1) enters the bottom of the ore blocking the ore chute through the opening, and then move the swing frame (5) in the opposite direction so that the telescopic part (1) rotates in the opposite direction to reset. S3: After the movable base (4) and swing frame (5) move the telescopic component (1) to the predetermined area, the inflation component (15) works to inflate the telescopic component (1) so that it extends to the bottom of the ore. The inflation component (15) controls the cylinder (7) to work so that the two clamps (8) move away from each other and do not contact the telescopic component (1), and the base (4) and swing frame (5) are moved away. S4: Tie explosives to one end of the rope, move the other end of the rope to the outside of the ore pass and pull it. Guided by the rotation of the first pulley (2) and the second pulley (3), the explosives rise close to the bottom of the ore and are then blasted to clear the blockage.

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