A blasting drilling device for shallow goaf areas in open-pit mines

Abstract

This invention belongs to the field of open-pit mine blasting drilling technology and provides a blasting drilling device for shallow-buried goaf areas in open-pit mines. The device comprises: a main drill bit, detachably mounted on a drilling rig; the main drill bit is used for drilling; at least one drill sleeve, detachably mounted on the main drill bit; the drill sleeve includes at least one mounting curved plate; blasting material can be loaded into the drill sleeve for blasting; the mounting curved plate has an impact rod. In summary, this blasting drilling device for shallow-buried goaf areas in open-pit mines is not only rationally designed but also simple to operate, capable of achieving splash impact on the residual layer, causing goaf collapse, and ensuring the personal safety of workers; therefore, this device is suitable for industry promotion.

Description

Technical Field

[0001] The invention relates to the technical field of blasting drilling in open-pit mines, and in particular to a blasting drilling device for a shallow goaf area in an open-pit mine. Background Art

[0002] In the shallow goaf of open-pit mines, due to the cavities formed by the goaf, it is often necessary to carry out blasting and collapse treatment for safety reasons. In the traditional goaf, after the use of explosives for targeted blasting, there is always a residual layer, that is, the part extending outward from the goaf. For this part, secondary blasting or equipment treatment is usually used. Both of these methods require manual treatment nearby, which increases the safety risk of personnel.

[0003] In order to solve this problem, we propose a splash blasting device, which can impact the remaining layer through splashes to achieve collapse. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a blasting drilling device for a shallow goaf area in an open-pit mine, which can impact the remaining layer, achieve collapse, and ensure the personal safety of operators.

[0005] The present invention provides a blasting drilling device for shallow goaf areas in open-pit mines, comprising: a drill bit main part, which can be detachably mounted on a drilling rig; the drill bit main part is used for drilling; at least one drill sleeve, which can be detachably mounted on the drill bit main part; the drill sleeve comprises at least one mounting curved plate; wherein blasting material can be loaded into the drill sleeve for blasting.

[0006] Furthermore, the installation curved plate includes a magnetic strip, and the magnetic strip is arranged at least at one side of the installation curved plate. In actual use, the purpose of this design is to facilitate connection, so that multiple installation curved plates can form a drill sleeve, and the installation is detachable, so that it can be easily installed on the drill bit main part, that is, on the wall of the rear main installation pipe, so that the drill sleeve can be easily moved deeper as the drill bit main part is excavated.

[0007] Furthermore, it also includes a cover plate, the installation curved plate is a box body, and the cover plate is detachably installed on the installation curved plate. In actual use, the purpose of this design is to facilitate the installation of the curved plate in the package to prevent the internal material from flowing out.

[0008] Furthermore, the installation curved plate also has a packing layer, and the impact rod is located in the packing layer, and there are multiple impact rods, which are evenly distributed and close to the cover plate. In actual use, the packing layer effectively protects the impact rod, enabling it to disperse the impact. In actual use, the packing layer is made of a mixture of glue and mud, and the glue is biological glue, leather glue, etc.

[0009] Furthermore, the cover is made of a penetrable material. In actual use, the cover is made of paper material, so that it can be fully burned after the explosion.

[0010] Furthermore, the drill bit main part includes a main mounting tube and a drill bit excavation section; the main mounting tube is provided with a spiral through groove, the spiral through groove is arranged on the main mounting tube along the axial direction of the main mounting tube and penetrates the side wall of the main mounting tube; the drill bit excavation section is installed on the spiral through groove; the drill bit excavation section is used for drilling and excavation. In actual use, the drill bit excavation section can perform effective drilling and excavation, which is convenient for drilling construction.

[0011] Furthermore, the drill bit main part also includes a material guide spiral section, and the main mounting tube has a feed port; the material guide spiral section is installed in the main mounting tube, and one end is close to the feed port. In actual use, the purpose of this design is to facilitate the discharge of debris generated during the drilling process. In this way, it is possible to discharge debris while drilling, and a drill sleeve can be added, which greatly improves the efficiency of the drilling operation.

[0012] Furthermore, the guide spiral section and the drill head section are both made of rubber material, and the main installation tube is electrically connected to an external power supply. In actual use, the guide spiral section and the drill head section are both made of a mold die-casting integrated molding process. In this way, the main installation tube is first placed in the mold of the die-casting machine, and then the equipment is used for integrated molding; of course, this design is also a one-time process, and the guide spiral section and the drill head section are used once. Thanks to the required drilling area being a shallow buried goaf area of ​​an open-pit mine, the drilling difficulty is low, and hard rubber material can be used. After the drilling is completed, it only needs to be heated by electricity to make the guide spiral section and the drill head section become molten. In this way, it is easy to detach the main installation tube; this makes it easy to install explosives, and the molten rubber material will also make the drill sleeve tightly installed in the borehole.

[0013] Furthermore, the main installation pipe is provided with a front end drill bit, and the front end drill bit is used for drilling holes. In actual use, this design can effectively facilitate excavation.

[0014] Furthermore, it also includes a driving assembly, which is used to drive the main mounting tube to move. In actual work, this design can effectively drive the main mounting tube and realize its rotation; in the actual design, a detachable chuck is installed on a fixed rotating frame, the chuck is connected to the main mounting tube, and then the chuck is driven to rotate by a motor.

[0015] It can be seen from the above technical solution that the beneficial effects of the blasting drilling device for shallow goaf areas in open-pit mines provided by the present invention are as follows:

[0016] (1) In actual use, this design effectively guarantees the drilling requirements of the blasting drilling area in the shallow goaf of the open-pit mine. At the same time, the drill sleeves are placed into the boreholes one by one, which provides support for the boreholes and prevents the hole from collapsing during the installation of explosives.

[0017] (2) At the same time, the installation curved plate used in actual application is to achieve diffuse impact, which is used in conjunction with explosives; when the explosives are set on the inner tube wall of the drill sleeve, after the explosion, it can trigger the impact rod to impact in all directions, thereby achieving further blasting impact on the shallow goaf of the open-pit mine, which facilitates the collapse of the shallow goaf of the open-pit mine. Two impacts and double force can trigger impact, which can accelerate the collapse and reduce the goaf area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention, the following will briefly introduce the drawings required for the specific embodiments or the prior art description. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 A schematic diagram of a main drill bit component and a drill sleeve in a blasting drilling device for shallow goaf areas in an open-pit mine provided by an embodiment of the present invention;

[0020] Figure 2 for Figure 1 The enlarged structural diagram of point A and the schematic diagram of the spiral through groove are shown;

[0021] Figure 3 It is a top view schematic diagram of a plurality of installation curved plates assembled into a drill sleeve in the present invention;

[0022] Figure 4 It is a schematic diagram of the top view of the structure of the installation of a curved plate in a blasting drilling device for shallow goaf of an open-pit mine according to the present invention;

[0023] Reference numerals:

[0024] The drill bit main part 1, the drill sleeve 2, the mounting curved plate 21, the magnetic strip 211, the packing layer 212, the impact rod 22, the main mounting tube 11, the spiral through groove 111, the feed port 112, the front end drill bit 113, the drill bit excavation section 12, the material guide spiral section 13, the cover plate 3, the drive assembly 4, the chuck 401, and the fixed rotating frame 402. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0026] The embodiment is basically as shown in the attached Figures 1 to 4 As shown:

[0027] Embodiment 1:

[0028] like Figure 1-Figure 4 As shown, this embodiment provides a blasting drilling device for shallow goaf areas in open-pit mines, which impacts the remaining layers, achieves collapse, and ensures the personal safety of operators.

[0029] The present invention provides a blasting drilling device for shallow goaf areas in open-pit mines, comprising: a drill bit main part 1, which can be detachably mounted on a drilling rig; the drill bit main part 1 is used for drilling; at least one drill sleeve 2, which can be detachably mounted on the drill bit main part 1; the drill sleeve 2 includes at least one mounting curved plate 21; wherein blasting materials can be loaded into the drill sleeve 2 for blasting. In actual use, the design effectively guarantees the drilling needs of the blasting drilling area in the shallow goaf of the open-pit mine, and at the same time, the drill sleeves 2 are placed into the boreholes one by one, which provides support for the boreholes and prevents the hole from collapsing during the installation of explosives. At the same time, the installation curved plate 21 used in actual use is to achieve diffuse impact, which is used in conjunction with explosives. When the explosives are set on the inner tube wall of the drill sleeve 2, after the explosion, it can trigger the impact rod 22 to impact in all directions, thereby achieving further blasting impact on the shallow goaf of the open-pit mine, which facilitates the collapse of the shallow goaf of the open-pit mine. Two impacts, double force, and impact can accelerate the collapse and reduce the goaf area.

[0030] In this embodiment, the installation curved plate 21 includes a magnetic strip 211, and the magnetic strip 211 is arranged at least at one side of the installation curved plate 21. In actual use, the purpose of this design is to facilitate connection, so that multiple installation curved plates 21 can form a drill sleeve 2, and the drill sleeve 2 is detachable, so that it can be easily installed on the drill head main part 1, that is, on the wall of the main installation tube 11 at the rear, so that the drill sleeve 2 can be easily moved deeper as the drill head main part 1 is excavated.

[0031] In this embodiment, a cover plate 3 is further included, the installation curved plate 21 is a box body, and the cover plate 3 is detachably installed on the installation curved plate 21. In actual use, the purpose of this design is to facilitate the installation of the curved plate 21 in the package to prevent the internal material from flowing out.

[0032] In this embodiment, the installation curved plate 21 further has a packing layer 212, and the impact rod 22 is located in the packing layer 212, and a plurality of impact rods 22 are provided and evenly arranged close to the cover plate 3. In actual use, the packing layer 212 effectively protects the impact rod 22, so that the impact can be dispersed. In actual use, the packing layer 212 is made of a mixture of glue and mud, and the glue is biological glue, leather glue, etc.

[0033] In this embodiment, the cover plate 3 is made of a penetrable material. In actual use, the cover plate 3 is made of paper material, so that it can be fully burned after the explosion.

[0034] In this embodiment, the drill head main part 1 includes a main mounting tube 11 and a drill head excavation section 12; the main mounting tube 11 is provided with a spiral through groove 111, the spiral through groove 111 is arranged on the main mounting tube 11 along the axial direction of the main mounting tube 11 and penetrates the side wall of the main mounting tube 11; the drill head excavation section 12 is installed on the spiral through groove 111111; the drill head excavation section 12 is used for drilling and excavation. In actual use, the drill head excavation section 12 can perform effective drilling and excavation, which is convenient for drilling construction.

[0035] In this embodiment, the drill bit main part 1 further includes a material guide spiral section 13, and the main mounting tube 11 has a feed port 112; the material guide spiral section 13 is installed in the main mounting tube 11, and one end is close to the feed port 112. In actual use, the purpose of this design is to facilitate the discharge of debris generated during the drilling process, so that the debris can be discharged while drilling, and the drill sleeve 2 can be installed, which greatly improves the drilling efficiency.

[0036] In this embodiment, the guide spiral section 13 and the drill head section 12 are both made of rubber material, and the main installation tube 11 is electrically connected to an external power supply. In actual use, the guide spiral section 13 and the drill head section 12 are both made of a mold die-casting integrated molding process. In this way, the main installation tube 11 is first placed in the mold of the die-casting machine, and then the equipment is used for integrated molding; of course, this design is also a one-time process, and the guide spiral section 13 and the drill head section 12 are used once. Thanks to the required drilling area being a shallow buried goaf area of ​​an open-pit mine, the drilling difficulty is low, and hard rubber material can be used. After the drilling is completed, it only needs to be heated by electricity to make the guide spiral section 13 and the drill head section 12 become a molten state, so that the main installation tube 11 can be easily separated; this makes it convenient to install explosives, and the molten rubber material will also make the drill sleeve 2 firmly installed in the borehole.

[0037] In this embodiment, the main installation pipe 11 is provided with a front end drill bit 113, and the front end drill bit 113 is used for drilling. In actual use, this design can effectively facilitate excavation.

[0038] In this embodiment, a driving assembly 4 is also included, and the driving assembly 4 is used to drive the main installation tube 11 to move. In actual work, this design can effectively drive the main installation tube 11 and realize its rotation; in the actual design, a detachable chuck 401 is installed on a fixed rotating frame 402, and the chuck 401 is connected to the main installation tube 11, and then the chuck 401 is driven to rotate by a motor.

[0039] In summary, this blasting drilling device for shallow goaf areas in open-pit mines is not only reasonably designed but also easy to operate. It can splash and impact the remaining layers, collapse the goaf area, and ensure the personal safety of the operators. Therefore, the device is suitable for industry promotion.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A blasting drilling device for shallow goaf in open-pit mines, characterized in that: include: A drill bit main part, which can be detachably mounted on a drilling rig; the drill bit main part is used for drilling holes; At least one drill sleeve, which is detachably mounted on the drill head main part; the drill sleeve includes at least one mounting curved plate; blasting materials can be loaded into the drill sleeve for blasting; the mounting curved plate has an impact rod; The drill bit main part comprises a main mounting tube and a drill bit excavation section; the main mounting tube is provided with a spiral through groove, the spiral through groove is arranged on the main mounting tube along the axial direction of the main mounting tube and penetrates the side wall of the main mounting tube; the drill bit excavation section is installed on the spiral through groove; the drill bit excavation section is used for drilling and excavation; The drill bit main part also includes a material guide spiral section, and the main mounting tube has a material feed port; the material guide spiral section is installed in the main mounting tube, and one end of the material guide spiral section is close to the material feed port; The material guiding spiral section and the drill bit excavation section are both made of rubber material, and the main installation pipe is electrically connected to an external power supply; The main mounting tube is provided with a front end drill bit, and the front end drill bit is used for drilling holes; It also includes a driving assembly, which is used to drive the main mounting tube to move.

2. The blasting drilling device for shallow goaf in open-pit mines according to claim 1 is characterized in that: The installation curved plate includes a magnetic strip, and the magnetic strip is arranged at least at one side of the installation curved plate.

3. The blasting drilling device for shallow goaf in open-pit mines according to claim 1 is characterized in that: It also includes a cover plate, the installation curved plate is a box body, and the cover plate is detachably installed on the installation curved plate.

4. The blasting drilling device for shallow goaf in open-pit mines according to claim 3 is characterized in that: The installation curved plate also has a packing layer, and the impact rods are located in the packing layer, and a plurality of impact rods are provided and evenly distributed close to the cover plate.

5. The blasting drilling device for shallow goaf in open-pit mines according to claim 4, characterized in that: The cover plate is made of a penetrable material.

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