Consistency control device for multi-hole complex perforation angle for strip mine

By designing a consistency control device for complex perforation angles of multiple pores in open-pit mines, the problem of inconsistency between multiple gun holes and slope angles is solved, and the parallelism and angle consistency between gun holes is achieved, reducing the cost of secondary mechanical cutting and ensuring the aesthetics of the slope.

CN222668111UActive Publication Date: 2025-03-25HEBEI IRON & STEEL GRP SIJIAYING YANSHAN IRON MINE CO LTD
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Patent Information

Application Number
CN202421261053.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-03-25
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

During the step mining process of open-pit mines, the multiple pre-cracked gun holes are not parallel and inconsistent with the slope design angle, resulting in uneven slope surfaces after blasting and cutting, and the half-wall holes are chaotic and intersected, affecting the aesthetics of the slope and increasing the cost of secondary mechanical cutting.

Method used

A consistent control device for complex perforation angles of multiple pores is designed, including base, straight rod, cross rod, level, angle measuring instrument and fixed support rod. By adjusting the direction and angle of these elements, each gun hole is parallel to the previous gun hole and consistent with the designed slope angle.

Benefits of technology

The parallelism between multiple gun holes and consistency with the slope angle is achieved, which reduces the secondary mechanical cutting cost of the slope after blasting, and ensures the overall aesthetics of the slope.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a multi-hole-number complex perforation angle consistency control device for an open-pit mine, belongs to the technical field of open-pit mine perforation equipment, and is used for ensuring the consistency of angles of a plurality of blast holes. According to the technical scheme, one ends of two metal rods of a base are rotationally connected through a base shaft, a gradienter is placed on one metal rod of the base, a straight rod is vertically placed, the lower end of the straight rod is rotationally connected with the front end of the metal rod, where the gradienter is placed, of the base through a straight rod connecting shaft, and a transverse rod is horizontally placed; the upper end of the straight rod is connected with the middle of the cross rod through the cross rod connecting shaft, the straight rod angle measuring instrument is installed at the lower end of the straight rod, the cross rod angle measuring instrument is installed at the upper end of the straight rod, and the two ends of the cross rod are connected with the drill rod fixing supports respectively. The device is simple in structure and convenient to use, all blast holes and a designed slope surface can be ensured to be consistent in angle and parallel to each other by adjusting the base, the straight rod and the cross rod in different directions and adjusting the angle of a plane connected with the drill rod, and the secondary cutting cost of machinery is greatly reduced.
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Description

Technical Field

[0001] The utility model relates to a device for controlling the consistency of multiple pre-splitting blasting holes under complex conditions in an open pit to ensure that the angles of the multiple holes are consistent, and belongs to the technical field of open pit mine perforating equipment. Background Art

[0002] During the step mining process of open-pit mines, when approaching the end of the slope, it is necessary to perforate along the end boundary line of the slope and use pre-splitting blasting technology to blast and cut the slope. Pre-splitting blasting is to protect the slope to be excavated by pre-cutting a pre-crack through a special charging structure. The protected slope will retain 1 / 2 of the blasthole wall, commonly known as the half-porosity, which is a key indicator to verify the success of pre-splitting blasting. The distance between pre-splitting blastholes is 2-3 meters. In order to ensure that the slope surface angle is smooth and beautiful, all pre-splitting blastholes need to be parallel and consistent with the slope design angle.

[0003] At present, all large-scale open-pit mines in China use integrated or split down-the-hole drilling rigs for pre-splitting drilling operations. The drill rods of the drilling rigs rotate 360 ​​degrees, and it is relatively easy to control the angle of a single blasthole. Since the drilling rig needs to be moved once for each blasthole, and the end boundary line is mostly arc-shaped, the effect of consistent angles and parallelism of multiple blastholes cannot be guaranteed. If the angle of the blasthole is inconsistent with the slope surface, the slope surface after blasting and cutting will be uneven, and mechanical equipment will be required for secondary cutting; if the blastholes are not parallel, the blasthole charge structure will be different, which will also cause the slope surface to be uneven, and the half-wall holes will be randomly crossed, affecting the overall aesthetics of the permanent slope surface. Since the half-wall holes can only be revealed after the blasting is completed, it is necessary to study a multi-blasthole consistency control device suitable for any angle and parallelism, which plays a role in the drilling process to ensure that all blastholes after blasting and cutting are consistent with the designed slope angle and parallel to each other. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a consistency control device for complex perforation angles of multiple holes for open-pit mines. This control device can solve the problem that multiple blast holes in open-pit mines are not parallel and have inconsistent angles with the retained slope, thereby avoiding the uneven surface of the retained slope after blasting and the disorderly crossing of half-wall holes, and can reduce the cost of secondary mechanical cutting of the rock slope.

[0005] The technical solution to solve the above technical problems is:

[0006] A consistency control device for multi-hole complex perforation angles for open-pit mines comprises a base, a straight rod, a cross rod, a spirit level, a base shaft, a straight rod connecting shaft, a cross rod connecting shaft, a straight rod angle measuring instrument, a base angle measuring instrument, a cross rod angle measuring instrument, and a fixed support rod. The base is composed of two metal rods, the two metal rods of the base are placed on the ground, one end of the two metal rods is rotatably connected by the base shaft, the spirit level is placed on a metal rod of the base, the straight rod is a metal rod, the straight rod is placed vertically, the lower end of the straight rod is rotatably connected to the front end of the metal rod of the base on which the spirit level is placed through the straight rod connecting shaft, the cross rod is a metal rod, the cross rod is placed horizontally, the upper end of the straight rod is rotatably connected to the middle part of the cross rod through the cross rod connecting shaft, a straight rod angle measuring instrument is installed at the connection between the lower end of the straight rod and the metal rod of the base, a cross rod angle measuring instrument is installed at the connection between the upper end of the straight rod and the cross rod, and both ends of the cross rod are respectively connected to fixed support rods.

[0007] The above-mentioned consistency control device for complex perforation angles of multiple holes for open-pit mines, the front ends of the two metal rods of the base are divided into left and right sides, the upper end of the left side is connected to the other base shaft through a connecting shaft, and a base angle measuring instrument is provided between the two.

[0008] The above-mentioned consistency control device for multi-hole complex perforation angles for open-pit mines, the front end of the metal rod of the base for installing the level gauge has a horizontal axial hole, the lower end of the straight rod is located on one side of the horizontal axial hole of the metal rod of the base, the lower end of the straight rod has an axial hole opposite to the horizontal axial hole of the metal rod of the base, the straight rod connecting shaft is inserted into the axial hole to rotatably connect the lower end of the straight rod with the front part of the metal rod of the base, a straight rod angle measuring instrument is installed at the connection, the right side of the metal rod of the base is connected to the straight rod through the connecting shaft, and a straight rod angle measuring instrument is provided between the two.

[0009] The above-mentioned consistency control device for complex perforation angles of multiple holes for open-pit mines has a horizontal axial hole at the upper end of the straight rod, and the axial direction of the axial hole is parallel to the length direction of the metal rod of the base 1 for installing the spirit level. The center of the cross bar has an axial hole opposite to the axial hole at the upper end of the straight rod, and the cross bar connecting shaft is inserted into the axial hole to rotatably connect the upper end of the straight rod with the middle part of the cross bar, and a cross bar angle measuring instrument is installed at the connection. The upper end axial hole of the straight rod and the side surface of the middle axial hole of the cross bar are respectively provided with top screw holes, and the top screw passes through the top screw hole to tightly connect the upper end of the straight rod and the middle part of the cross bar with the cross bar connecting shaft respectively.

[0010] The above-mentioned consistency control device for multi-hole complex perforation angles for open-pit mines, the two fixed support rods are parallel in the horizontal direction, the front ends of the two fixed support rods are respectively welded with brackets, the brackets are triangular, and the brackets at the front ends of the two fixed support rods are respectively closely connected to the side faces of the drill pipe.

[0011] The beneficial effects of the utility model are:

[0012] The utility model has a simple structure and is easy to use. By adjusting the different directions of the metal skeleton of the base, the straight rod and the cross rod and adjusting the angle of the connecting drill rod plane, each blast hole can be parallel to the previous blast hole and consistent with the inclination angle of the slope surface. It is ensured that after blasting and cutting, all blast holes are consistent with the designed slope surface angle and are parallel to each other. The cost of mechanical secondary cutting is greatly reduced, and the overall beauty of the slope is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 It is a schematic elevation diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection structure between the base and the straight rod;

[0016] Figure 4 It is a schematic diagram of the connection structure between the straight rod and the cross rod;

[0017] Figure 5 It is a structural schematic diagram of a drill pipe fixing bracket.

[0018] The markings in the figure are as follows: base 1, straight rod 2, cross rod 3, level 4, base axis 5, straight rod connecting axis 6, cross rod connecting axis 7, straight rod angle measuring instrument 8, base angle measuring instrument 9, cross rod angle measuring instrument 10, fixed support rod 11, bracket 12, drill rod 13, drill bit 14. DETAILED DESCRIPTION

[0019] The utility model is composed of a base 1, a straight rod 2, a cross rod 3, a level 4, a base shaft 5, a straight rod connecting shaft 6, a cross rod connecting shaft 7, a straight rod angle measuring instrument 8, a base angle measuring instrument 9, a cross rod angle measuring instrument 10, a fixed support rod 11 and a bracket 12.

[0020] As shown in the figure, the base 1 is composed of two metal rods. The metal rods of the base 1 and the straight rods 2 and the cross rods 3 are all metal square tubes, which can be aluminum alloy square tubes, and have the advantages of light weight and high strength.

[0021] The figure shows that the two metal rods of the base 1 are placed on the ground, and one end of the two metal rods is rotatably connected by the base shaft 5. The front ends of the two metal rods of the base 1 are divided into left and right sides, and the upper end of the left side is in a tiger's mouth shape, which is connected to the other base shaft through the connecting shaft 5. The base shaft 5 is inserted into the shaft hole to rotatably connect the front ends of the two metal rods of the base 1. The base angle measuring instrument 12 is installed at the connection of the two metal rods of the base 1. The base 1 is placed on the ground, and opening the two metal rods can make the base 1 firmly support the structure above and will not tip over. The level 4 is placed on a metal rod of the base 1 to adjust the level of the base 1.

[0022] As shown in the figure, the straight rod 2 is placed vertically, and the lower end of the straight rod 2 is rotatably connected to the front end of the metal rod of the base 1 on which the level 4 is placed through the straight rod connecting shaft 6.

[0023] The connection structure is as follows: the front end of the metal rod of the base 1 for installing the level gauge 4 has a horizontal axis hole, the lower end of the straight rod 2 is located on one side of the horizontal axis hole of the metal rod of the base 1, the lower end of the straight rod 2 has an axis hole opposite to the horizontal axis hole of the metal rod of the base 1, and the straight rod connecting shaft 6 is inserted into the axis hole to rotatably connect the lower end of the straight rod 2 with the front part of the metal rod of the base 1. The straight rod angle measuring instrument 8 is installed at the connection to display the inclination angle of the straight rod 2 and the metal rod of the base 1.

[0024] As shown in the figure, the horizontal axis hole of the metal rod of the base 1 and the axis hole at the lower end of the straight rod 2 and the side thereof are respectively provided with top screw holes, and the top screws pass through the top screw holes to tightly connect the metal rod of the base 1 and the lower end of the straight rod 2 to the straight rod connecting shaft 6 respectively.

[0025] As shown in the figure, the crossbar 3 is placed horizontally, and the upper end of the straight rod 2 is connected to the middle of the crossbar 3 through the crossbar connecting shaft 7. Its connection structure is: the upper end of the straight rod 2 has a horizontal shaft hole, the axial direction of the shaft hole is parallel to the length direction of the metal rod of the base 1 on which the level gauge 4 is installed, the center of the crossbar 3 has a shaft hole opposite to the shaft hole at the upper end of the straight rod 2, and the crossbar connecting shaft 7 is inserted into the shaft hole to rotatably connect the upper end of the straight rod 2 with the middle of the crossbar 3. A crossbar angle measuring instrument 10 is installed at the connection to display the inclination angle of the straight rod 2 and the crossbar 3.

[0026] As shown in the figure, there are top screw holes on the side of the upper end shaft hole of the straight rod 2 and the middle part shaft hole of the cross bar 3 respectively. The top screw passes through the top screw holes to tightly connect the upper end of the straight rod 2 and the middle part of the cross bar 3 to the cross bar connecting shaft 7 respectively.

[0027] As shown in the figure, the two ends of the cross bar 3 are respectively connected to the fixed support rod 11 and the bracket 12, the rear ends of the two fixed support rods 11 are vertically fixedly connected to the two ends of the cross bar 3 by bolts, the two fixed support rods 11 are parallel in the horizontal direction, and the front ends of the two fixed support rods 11 are respectively welded with brackets 12, the bracket 12 is triangular, and the brackets 12 at the front ends of the two fixed brackets are respectively tightly connected to the side surfaces of the drill rod 13.

[0028] The method of using the utility model is as follows:

[0029] After assembly, the two angle scales and level gauges on the device will be adjusted and fixed to the designed angle according to the drilling technical requirements. When the first blast hole operation is completed and the second blast hole is drilled, it is only necessary to adjust the bottom metal bracket to ensure the bottom is level. After the drill rod is adjusted according to the fixed angle of the device, it can ensure that the blast holes are parallel to each other and maintain the same angle with the slope surface. It ensures that all blast holes are consistent with the designed slope angle after blasting and cutting, and the blast holes are parallel to each other, which greatly reduces the cost of secondary mechanical cutting of rock slopes.

[0030] An embodiment of the present utility model is as follows:

[0031] The two metal rods of the base 1 have a square tube diameter of 50 mm and a length of 2000 mm;

[0032] The square tube length of the straight rod 2 metal rod is 50mm, the width is 25mm, and the height is 1500mm;

[0033] The square tube diameter of the crossbar 3 metal rod is 40mm and the length is 1200mm;

[0034] The model of the level 4 is DL290100;

[0035] The base shaft 5 has a diameter of 20 mm and a length of 35 mm;

[0036] The diameter of the straight rod connecting shaft 6 is 20 mm and the length is 20 mm;

[0037] The crossbar connecting shaft 7 has a diameter of 15 mm and a length of 50 mm;

[0038] The fixed support rod 11 has a diameter of 30 mm and a length of 600 mm;

[0039] The bracket 12 has a diameter of 10 mm and a length of 200 mm.

Claims

1. A consistency control device for multiple holes with complex perforation angles for open-pit mines, characterized by: It comprises a base (1), a straight rod (2), a cross rod (3), a level (4), a base shaft (5), a straight rod connecting shaft (6), a cross rod connecting shaft (7), a straight rod angle measuring instrument (8), a base angle measuring instrument (9), a cross rod angle measuring instrument (10), and a fixed support rod (11). The base (1) is composed of two metal rods. The two metal rods of the base (1) are placed on the ground. One end of the two metal rods is rotatably connected by the base shaft (5). The level (4) is placed on a metal rod of the base (1). The straight rod (2) is a metal rod. The straight rod (2) is placed vertically. The lower end of the straight rod (2) is rotatably connected to the front end of the metal rod of the base (1) on which the level gauge (4) is placed via a straight rod connecting shaft (6); the cross rod (3) is a metal rod, which is placed horizontally; the upper end of the straight rod (2) is rotatably connected to the middle of the cross rod (3) via a cross rod connecting shaft (7); a straight rod angle measuring instrument (8) is installed at the connection between the lower end of the straight rod (2) and the metal rod of the base (1); a cross rod angle measuring instrument (10) is installed at the connection between the upper end of the straight rod (2) and the cross rod (3); and both ends of the cross rod (3) are respectively connected to fixed support rods (11) of the drill rod.

2. The consistency control device for multiple holes and complex perforation angles for open-pit mines according to claim 1 is characterized by: The front ends of the two metal rods of the base (1) are divided into left and right sides, and the upper end of the left side is connected to the other base shaft through a base shaft (5), and a base angle measuring instrument (9) is provided between the two.

3. The consistency control device for complex perforation angles with multiple holes for open-pit mines according to claim 1 is characterized by: The front end of the metal rod of the base (1) for installing the level gauge (4) has a horizontal axis hole, the lower end of the straight rod (2) is located on one side of the horizontal axis hole of the metal rod of the base (1), the lower end of the straight rod (2) has an axis hole opposite to the horizontal axis hole of the metal rod of the base (1), the straight rod connecting shaft (6) is inserted into the axis hole to rotatably connect the lower end of the straight rod (2) with the front part of the metal rod of the base (1), and the straight rod angle measuring instrument (8) is installed at the connection, the right side of the metal rod of the base (1) is connected to the straight rod (2) through the connecting shaft (6), and the straight rod angle measuring instrument (8) is arranged between the two.

4. The consistency control device for complex perforation angles with multiple holes for open-pit mines according to claim 1 is characterized by: The upper end of the straight rod (2) has a horizontal axial hole, the axial direction of the axial hole is parallel to the length direction of the metal rod of the base (1) on which the level gauge (4) is installed, the center of the cross bar (3) has an axial hole opposite to the axial hole at the upper end of the straight rod (2), the cross bar connecting shaft (7) is inserted into the axial hole to rotatably connect the upper end of the straight rod (2) with the middle part of the cross bar (3), and the cross bar angle measuring instrument (10) is installed at the connection, and the upper end axial hole of the straight rod (2) and the middle axial hole of the cross bar (3) are respectively provided with top screw holes on the side, and the top screw passes through the top screw hole to respectively connect the upper end of the straight rod (2) and the middle part of the cross bar (3) with the cross bar connecting shaft (7).

5. The consistency control device for multiple holes and complex perforation angles for open-pit mines according to claim 1 is characterized by: The two fixed support rods (11) are parallel in the horizontal direction, and brackets (12) are respectively welded to the front ends of the two fixed support rods (11). The brackets (12) are triangular in shape, and the brackets (12) at the front ends of the two fixed support rods (11) are respectively closely connected to the side surfaces of the drill rod (13).