A charging and depth measuring device for assisting smooth blasting in mines

Abstract

The present invention relates to a charging and sounding device for assisting smooth surface blasting in mines, comprising a flexible covering body wrapped outside an explosive bag, the flexible covering body being provided with longitudinal keel ribs distributed along the length direction of the explosive bag, the flexible covering body being provided with rope holes evenly spaced along the length direction of the explosive bag, a fixed binding rope passing through the rope hole and wrapping around the flexible covering body at least once along the width direction of the explosive bag to bind the flexible covering body outside the explosive bag; the flexible covering body being provided with sounding strips distributed along the length direction of the explosive bag, the side depth strips being composed of color display grids distributed at intervals, the color display grids being different from the color of the flexible covering body, and the height of the color display grids being equal to the distance between two adjacent color display grids, the device can effectively prevent accidental falling off of detonators and accidental hole dropping of explosive strings, and an additional hole depth detection function is provided to ensure smooth construction work.

Description

Technical Field

[0001] The invention relates to the technical field of smooth surface blasting, and in particular to a charge and depth measuring device for assisting smooth surface blasting in mines. Background Art

[0002] At present, the following two methods are generally used when charging for smooth blasting in mines:

[0003] The first method is to tie the explosive string to a soft rope such as nylon rope and put it into the blast hole. This method has the following disadvantages:

[0004] ① Low safety guarantee, unable to ensure that the explosive string can smoothly reach the predetermined hole depth. When adjusting the position of the explosive package in the hole, it is easy to get stuck when entering the hole or pulling up. When the upward pulling force is too large, it is easy to cause the explosive string to be damaged or even the pull rope to break. When rubbing against the hole wall, it is easy to cause the explosive string or detonator to accidentally fall and the gun line to be damaged.

[0005] ② It is not convenient for detection. After measuring the length of the entire medicine string and the spacing between medicine packages, if the length of the medicine packages and the distribution spacing need to be adjusted, the bundling and detection steps need to be repeated, which is time-consuming and troublesome.

[0006] ③ Suitable for inclined hole and flat hole operations.

[0007] ④No waterproof and moisture-proof function.

[0008] The second method is to use two long thin bamboo strips connected in series to bundle the explosives, and then put them together into the blast hole. This method has the following disadvantages:

[0009] ① Low efficiency. It is necessary to string and fix bamboo boards in advance at the construction site, especially for deep hole blasting, which requires longer bamboo boards, consumes more manpower and working time, requires a large number of professionals, and requires multiple people to work together when putting the explosive string into the blast hole.

[0010] ② Low safety guarantee. When the explosive string is placed in a deep blast hole, the bamboo board is prone to breakage and loss of grip, causing the string to stall and fall into the hole. If the bamboo board is too short and falls into the hole completely, it will be difficult to salvage. In addition, when the explosive string is placed in the hole, the friction between the hard bamboo board (joint) and the hole wall can easily wear the exposed detonator line, causing line failure.

[0011] ③No waterproof and moisture-proof function. Summary of the invention

[0012] The object of the present invention is to provide a charging and depth measuring device for assisting smooth blasting in mines, so as to solve the above-mentioned problems in the prior art.

[0013] In order to solve the above problems, the present invention relates to a charging and depth measuring device for assisting smooth blasting in mines, which adopts the following technical solutions:

[0014] A charging and sounding device for assisting smooth surface blasting in mines, comprising a flexible covering body wrapped around an explosive pack, the flexible covering body being provided with longitudinal keel ribs distributed along the length direction of the explosive pack, the flexible covering body being provided with rope holes evenly spaced along the length direction of the explosive pack, a fixed binding rope passing through the rope holes and wrapping around the flexible covering body at least once along the width direction of the explosive pack to bind the flexible covering body to the outside of the explosive pack; the flexible covering body being provided with sounding strips distributed along the length direction of the explosive pack, the side depth strips being composed of color display grids distributed at intervals, the color display grids being different from the color of the flexible covering body, and the height of the color display grid being equal to the distance between two adjacent color display grids.

[0015] The above-mentioned charging and sounding device for auxiliary mine smooth blasting, the rope holes are distributed on both sides of the flexible sheathing body near the edge, two longitudinal keel ribs are arranged in the middle of the flexible sheathing body, and the area between the two longitudinal keel ribs forms a sounding strip.

[0016] In the above-mentioned charging and sounding device for auxiliary mine smooth blasting, the longitudinal keel reinforcement is a chemical fiber rope embedded or woven in the flexible sheathing body.

[0017] In the above-mentioned charging and depth sounding device for assisting smooth surface blasting in mines, the flexible covering body adopts a chemical fiber mesh surface.

[0018] In the above-mentioned charging and sounding device for assisting smooth blasting in mines, the rope hole on one side of the flexible covering body is replaced by a sub-velcro, and the mother velcro matching the sub-velcro is located between the two rope holes on the other side of the flexible covering body.

[0019] The above-mentioned charging and sounding device for auxiliary mine smooth blasting, the flexible covering body is made of waterproof cloth, waterproof zippers are installed on the two side edges of the waterproof cloth, and the waterproof zippers are closed to wrap the waterproof cloth outside the explosive bag.

[0020] In the above-mentioned charging and sounding device for auxiliary mine smooth blasting, the rope hole is sewn on the outer surface of the waterproof cloth, and the fixed binding rope passes through the rope hole to bind the waterproof cloth to the outside of the explosive package.

[0021] The above-mentioned charging and sounding device for assisting smooth surface blasting in mines also includes a traction assembly, which includes an internally hollow traction tube and a conical pointed bottom located at the lower end of the traction tube, and a steering ring bent toward the central axis of the traction tube is provided on the pointed bottom. One end of the traction rope is connected to the lower end of the flexible sheath, and the other end of the traction rope passes through the pointed bottom and bypasses the steering ring and extends upward along the central axis of the traction tube to the upper end of the traction tube.

[0022] The above-mentioned charging and sounding device for auxiliary mine smooth blasting, the pointed bottom is composed of three metal rods whose lower ends are welded to one point, the lower ends of the metal rods are welded to the straight line where the central axis of the traction tube is located, and the upper ends of the metal rods are welded to the lower end of the traction tube at equal intervals, and the angle α between the metal rods and the plane where the lower end surface of the traction tube is located is 60-70°; the two ends of the steering ring are rotatably mounted on two of the metal rods through bearings to realize self-rotation, and a pulley is installed in the middle of the steering ring, and the traction rope is passed around the pulley.

[0023] The above-mentioned charging and sounding device for assisting smooth surface blasting in mines, the traction pipe comprises a plurality of sub-traction pipes with the head and tail ends being threadedly connected.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. High safety. The explosives, detonators and gun lines in the lower hole are wrapped with external bodies, which basically prevents the falling of the gun bag and the falling of the detonator, greatly reduces the possibility of the gun line breaking due to friction, and ensures the smooth progress of the construction work. Adding two thickened nylon ropes as keel tendons greatly enhances the tensile strength, basically avoiding the situation where the gun string is stuck in the hole and cannot be pulled out of the gun hole. When used with a tractor, it can ensure that the gun string can reach the predetermined depth in the gun hole, and both flexibility and rigidity are taken into consideration.

[0026] 2. High operating efficiency. Conventional operations only require a small number of blasting technicians to simply bundle the explosive packages, avoiding the cumbersome bundling of explosive strings and bamboo strips. The disassembly is simple and fast, reducing labor costs, reducing the difficulty of charging, simplifying the charging procedure, and improving charging efficiency.

[0027] 3. A new function for detecting hole depth has been added. The depth of the blasthole can be measured by identifying the color grid of the external marking of the device, accurately judging whether the spacing between the detection medicine packages meets the design requirements, and flexibly adjusting the distribution position of the medicine string in the hole to prevent misoperation.

[0028] 4. It is suitable for straight hole, inclined hole and flat hole operations. When used with a traction tube, it can ensure that the explosive string enters the hole smoothly and reaches the bottom of the blast hole, ensuring that the inclined hole and flat hole operations can also be carried out normally.

[0029] 5. The device is easy to transport and store. It can be rolled up and stored like a transparent tape, which is convenient for transportation and can be cut when needed.

[0030] 6. In addition, waterproof and moisture-proof functions can be selected according to the construction environment, which greatly reduces the dependence on the blasting environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a planar development schematic diagram of the present invention.

[0033] Figure 2 It is a schematic diagram of the present invention after curling.

[0034] Figure 3 It is a schematic diagram of the structure of the explosive package wrapped in the present invention.

[0035] Figure 4 A schematic diagram of the structure of the traction component.

[0036] Figure 5 A schematic diagram of the structure of the pointed bottom of the traction component.

[0037] Figure 6 It is an overall schematic diagram of the use state of the present invention.

[0038] Figure 7 This is a schematic diagram of the structure of Example 2.

[0039] Figure 8 This is a schematic diagram of the structure of Example 3.

[0040] Explanation of the reference numerals in the figure: 1-flexible covering body, 2-longitudinal keel rib, 3-rope hole, 4-fixed binding rope, 5-explosive pack, 6-color developing grid, 7-sub-velcro, 8-female Velcro, 9-traction tube, 10-metal rod, 11-steering ring, 12-traction line, 13-waterproof zipper, 14-pulley. DETAILED DESCRIPTION

[0041] In order to make the technical purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] Embodiment 1:

[0043] A charging and depth measuring device for assisting smooth blasting in mines, such as Figure 1-6As shown, it includes a flexible sheath 1 wrapped around the explosive package, and the flexible sheath is provided with longitudinal keel ribs 2 distributed along the length direction of the explosive package, and rope holes 3 are evenly spaced along the length direction of the explosive package on the flexible sheath 1, and a fixed binding rope 4 passes through the rope holes and wraps around the flexible sheath 1 at least once along the width direction of the explosive package to bind the flexible sheath outside the explosive package. Among them, the rope holes 3 are distributed on both sides of the flexible sheath near the edge, and two longitudinal keel ribs 2 are inserted in the middle of the flexible sheath 1. In this embodiment, the flexible sheath 1 adopts a chemical fiber mesh surface. The longitudinal keel ribs 2 are thickened chemical fiber ropes embedded or woven in the flexible sheath. The chemical fiber mesh surface is relatively flexible and can be bent at will to wrap the explosive package in all directions, which basically prevents the occurrence of the explosive package falling off and the detonator falling hole, and greatly reduces the possibility of line damage caused by friction. The thickened chemical fiber rope has a certain degree of stiffness, which can prevent the chemical fiber mesh from wrinkling and twisting to a certain extent. At the same time, the thickened chemical fiber rope has good toughness, greatly enhances the tensile strength, and basically avoids the situation where the drug string cannot be pulled out of the blast hole. Generally, the lateral size of the chemical fiber mesh is about 25 cm to 35 cm, and the longitudinal length of the chemical fiber mesh is not limited, and it can be coiled and stored. The spacing between the two longitudinal keel tendons (i.e., the thickened chemical fiber rope) is about 2 cm. The left and right rope holes 3 are staggered, and the longitudinal spacing of the rope holes 3 on both sides of the longitudinal keel tendons 2 is 50 cm. At this time, the minimum spacing of the rope holes 3 (minimum tie mouth) is 25 cm, that is, the maximum error of the drug string spacing is 12.5 cm. In order to reduce this error, the holes can be appropriately encrypted in advance before the cost is controllable. For example, the longitudinal spacing of the rope holes 3 on both sides of the longitudinal keel tendons 2 can be set to 30 cm, thereby reducing the minimum hole spacing and reducing the error.

[0044] The area between the two longitudinal keel bars 2 on the flexible covering body 1 forms a sounding strip. The thickened chemical fiber rope has a certain degree of stiffness, which can prevent the chemical fiber mesh from wrinkling and twisting to a certain extent, and ensure the accuracy of the sounding strip measurement. The sounding strip is distributed and extended along the length direction of the explosive package. The side depth strip is composed of color-developing grids 6 distributed at intervals. The color-developing grids 6 are sprayed in other colors different from the color of the flexible covering body 1. In order to facilitate the calculation of the hole depth, the height of the color-developing grid 6 is equal to the distance between two adjacent color-developing grids 6, and the rope hole 3 on one side is located on the same horizontal plane as the change of the sprayed color.

[0045] When charging, the flexible coating 1 is laid flat, the explosive package is placed on the flexible coating 1, the flexible coating 1 is curled, and the fixed binding rope 4 is wound around the flexible coating 1 for 1-3 turns to tightly wrap the explosive package in the flexible coating 1. The upper and lower ends of the explosive package are firmly limited by the two fixed binding ropes 4, and the stability is good and the binding speed is very fast. At the same time, the length of the loaded explosive package can be calculated according to the number of grids of the color display grid 6, and each explosive package 5 can be adjusted independently in the flexible coating 1, so it is allowed to adjust or change the position and distribution of the explosive package in the hole at will according to the blasting design, and it is not necessary to remove all of them and re-bundle them, which greatly shortens the operation time (generally, the explosives must be used within 24 hours after leaving the warehouse, otherwise the surplus must be returned to the warehouse, and the approval process is relatively troublesome), ensuring smooth construction.

[0046] In addition, in order to make the drug string go down the hole smoothly, especially in the inclined hole operation, a traction assembly can be used, wherein the traction assembly includes a traction tube 9 with a hollow interior and a conical pointed bottom located at the lower end of the traction tube, a turning ring 11 bent toward the central axis of the traction tube 9 is welded on the pointed bottom, one end of the traction rope 12 is connected to the lower end of the flexible sheath 1, and the other end of the traction rope 12 passes through the pointed bottom and bypasses the pulley 14 on the turning ring and extends upward along the central axis of the traction tube to the upper end of the traction tube 9. The pointed bottom is composed of three metal rods 10 welded at the lower end at one point, the lower end of the metal rod 10 is welded to the straight line where the central axis of the traction tube 9 is located, and the upper end of the metal rod 10 is welded to the lower end of the traction tube 9 at equal intervals, and the angle α between the metal rod 19 and the plane where the lower end surface of the traction tube 9 is located is 65°; the turning ring 11 is welded to two of the metal rods 10. The traction rope 12 enters between the three metal bars in any direction, and then passes upward through the pulley 14 on the steering ring. Since the two ends of the steering ring 11 can realize self-rotation through bearings, a pulley 14 is sleeved in the middle of the steering ring 11 and is bent toward the central axis of the traction tube 9. Therefore, when the traction rope 12 is tightened and passed around the middle pulley, it can be ensured that the pulling direction of the traction rope 12 passes through the central axis of the stainless steel tube, which is convenient for pulling up and tightening the traction rope 12, preventing the traction rope 12 from having a large friction with the inner wall of the traction tube 9 and the traction tube from shaking significantly. Under the traction of the traction rope 12, the traction control controls the medicine string to go down the hole smoothly, effectively solving the problem that the medicine string is difficult to go down the hole due to the contact friction between gravity and the hole wall when operating in the inclined hole.

[0047] In order to adapt to different hole depths, the traction tube 9 is designed to be a plurality of sub-traction tubes with head and tail ends threadedly connected.

[0048] Embodiment 2: In this embodiment, a charging and depth sounding device for assisting smooth surface blasting in a mine is described centering on the differences from Embodiment 1.

[0049] like Figure 7As shown, the rope hole 3 on one side of the flexible covering body 1 is replaced by a sub-velcro 7, and a female velcro 8 matching the sub-velcro 7 is located between the two rope holes on the other side of the flexible covering body, which can further increase work efficiency.

[0050] Embodiment 3: In this embodiment, a charging and depth sounding device for assisting smooth blasting in a mine is described centering on the differences from Embodiment 1.

[0051] like Figure 8 As shown, the flexible covering body 1 is made of waterproof cloth, and waterproof zippers 13 are installed at the edges of both sides of the waterproof cloth. The waterproof zippers 13 are closed to wrap the waterproof cloth outside the explosive pack. Rope holes 3 are sewn on the outer surface of the waterproof cloth, and fixed binding ropes 4 pass through the rope holes 3 to tie the waterproof cloth outside the explosive pack. It can be applied to humid construction environments and is waterproof and moisture-proof.

[0052] Finally, it should be noted that the above-mentioned embodiments are only used to illustrate rather than limit the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any equivalent substitutions of the present invention and modifications or partial substitutions that do not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A charging and depth measuring device for assisting smooth blasting in mines, characterized in that: The invention comprises a flexible covering body wrapped around the explosive package, wherein the flexible covering body is provided with longitudinal keel bars distributed along the length direction of the explosive package, and rope holes are evenly spaced along the length direction of the explosive package on the flexible covering body, and a fixed binding rope passes through the rope holes and wraps around the flexible covering body at least once along the width direction of the explosive package to bind the flexible covering body outside the explosive package; the flexible covering body is provided with depth measuring strips distributed along the length direction of the explosive package, and the depth measuring strips are composed of color display grids distributed at intervals, the color display grids and the flexible covering body have different colors, and the height of the color display grids is different from that of the two adjacent color display grids. The distances between the color display grids are equal; the rope holes are distributed on both sides of the flexible sheathing body near the edges, two longitudinal keel ribs are arranged in the middle of the flexible sheathing body, and the area between the two longitudinal keel ribs forms a depth measuring strip; the longitudinal keel ribs are chemical fiber ropes embedded or woven in the flexible sheathing body; the upper and lower ends of the explosive pack are firmly limited by two fixed binding ropes, the length of the installed explosive pack can be calculated according to the number of color display grids, and each explosive pack can be independently adjusted in the flexible sheathing body, allowing the position and distribution of the explosive pack in the hole to be adjusted or changed at will according to the blasting design.

2. The charging and depth measuring device for assisting smooth blasting in mines according to claim 1, characterized in that: The flexible covering body adopts a chemical fiber mesh surface.

3. The charging and depth measuring device for assisting smooth blasting in mines according to claim 2, characterized in that: The rope hole on one side of the flexible covering body is replaced by a sub-velcro, and a mother velcro matching the sub-velcro is located between the two rope holes on the other side of the flexible covering body.

4. The charging and depth measuring device for assisting smooth blasting in mines according to claim 1 is characterized in that: The flexible covering body is made of waterproof cloth, and waterproof zippers are installed at the edges of both sides of the waterproof cloth. The waterproof zippers are closed to wrap the waterproof cloth outside the explosive package.

5. The charging and depth measuring device for assisting smooth blasting in mines according to claim 4, characterized in that: The rope hole is sewn on the outer surface of the waterproof cloth, and the fixed binding rope passes through the rope hole to bind the waterproof cloth to the outside of the explosive package.

6. A charging and depth measuring device for assisting smooth blasting in mines according to any one of claims 1 to 5, characterized in that: It also includes a traction assembly, which includes an internally hollow traction tube and a conical pointed bottom located at the lower end of the traction tube, wherein a steering ring bent toward the central axis of the traction tube is provided in the pointed bottom, one end of the traction rope is connected to the lower end of the flexible covering body, and the other end of the traction rope passes through the pointed bottom and bypasses the steering ring along the central axis of the traction tube to extend upward to the upper end of the traction tube.

7. The charging and depth measuring device for assisting smooth blasting in mines according to claim 6, characterized in that: The pointed bottom is composed of three metal rods whose lower ends are welded to one point, the lower ends of the metal rods are welded to the straight line where the central axis of the traction tube is located, and the upper ends of the metal rods are welded to the lower end of the traction tube at equal intervals, and the angle α between the metal rods and the plane where the lower end surface of the traction tube is located is 60-70°; the two ends of the steering ring are rotatably mounted on two of the metal rods through bearings to achieve self-rotation, and a pulley is installed in the middle of the steering ring, and the traction rope is passed around the pulley.

8. The charging and depth measuring device for assisting smooth blasting in mines according to claim 7, characterized in that: The traction tube comprises a plurality of sub-traction tubes with head and tail ends threadedly connected.

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