Strip mine step deep hole blasting device
The explosives are melted and centrifugally sprayed onto the deep hole wall of the open-pit mine step through components such as the charge guide spindle tube and the rotating discharge sleeve, solving the problem of charging in the irregular space at the bottom and achieving efficient blasting effects.
Patent Information
- Application Number
- CN202511069013.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-26
AI Technical Summary
During deep-hole blasting on open-pit mine steps, traditional methods cannot effectively load explosives into the irregular space at the bottom, resulting in reduced blasting efficiency.
Using components such as the guide spindle tube, melting sleeve and rotating discharge sleeve, the solid explosive is melted and sprayed to the hole wall through centrifugal force, achieving efficient stacking of explosives and combining it with traditional electronic detonation methods to improve the explosion effect.
It effectively reduces the space retention in deep holes on the open-pit mine steps and improves the blasting efficiency and charging efficiency.
Smart Images
Figure CN120702292A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of deep hole blasting, in particular to an open-pit mine step deep hole blasting device. Background Art
[0002] In the process of deep hole blasting on the bench of open pit mines, due to the irregularity of the deep hole of the open pit bench and the fact that the bottom space is larger than the upper space, in the traditional process of placing explosives, it is impossible to place the explosives in the irregular space at the bottom. As a result, there is space left in the deep hole of the open pit bench, which greatly reduces the impact effect of the explosion and reduces the explosion efficiency.
[0003] In view of this, we propose a blasting device that can realize deep hole charging on the steps of open-pit mines, greatly improving the blasting efficiency. Summary of the Invention
[0004] In view of the defects in the prior art, the present invention provides an open-pit mine bench deep hole blasting device to achieve effective charging of explosives on the bottom, reduce space retention, and improve blasting efficiency.
[0005] The present invention provides an open-pit mine step deep-hole blasting device, comprising: a charging section, the charging section comprising a charge guide main shaft tube, a melting sleeve and a rotating discharge sleeve, wherein one end of the charge guide main shaft tube extends into the deep hole of the open-pit mine step; and explosives enter the deep hole of the open-pit mine step through the charge guide main shaft tube; the melting sleeve is arranged on the inner wall of the charge guide main shaft tube, wherein the melting sleeve is electrically connected to the outside and melts the blasting explosive by increasing the temperature; and a blasting section, the blasting section is arranged in the deep hole of the open-pit mine step, and the explosives are detonated by electricity.
[0006] Furthermore, the device further comprises a fixing bracket, which is fixedly mounted outside the deep hole of the open pit mine step, and the drug guide main shaft tube is detachably mounted on the fixing bracket. In actual use, the purpose of this design is to allow the drug guide main shaft tube to be suspended in the deep hole of the open pit mine step, which facilitates subsequent work.
[0007] Furthermore, the drug guide spindle is provided with a fixed inner mounting platform, and the fusion sleeve is removably mounted within the drug guide spindle, with one end of the fusion sleeve abutting against the fixed inner mounting platform. In actual use, the purpose of this design is to achieve effective installation of the fusion sleeve and limit its installation length, effectively ensuring stability during installation.
[0008] Furthermore, the melting sleeve includes a liquid injection sleeve and a heating grid, which is installed within the injection sleeve and electrically connected to an external power source. The injection sleeve is provided with a liquid inlet and a liquid outlet, wherein the injection sleeve is injected with liquid through the liquid inlet. In actual use, the purpose of this design is to achieve water-insulated heating of the emulsion explosive. This ensures that the heating temperature is stable at 100°C, and the emulsion explosive can be transformed from a solid state to an emulsified and molten state. In actual operation, when the emulsion explosive flows down the outer wall of the injection sleeve, the heating grid causes the water temperature inside the injection sleeve to rise, achieving the effect of emulsified melting of the explosive. This facilitates subsequent charging.
[0009] Furthermore, the drug guide main shaft tube is also provided with an outer mounting section, and the rotary discharge sleeve is rotatably mounted on the outer mounting section; the rotary discharge sleeve includes a rotary sleeve and a rotary motor; the rotary motor is fixedly mounted on the outer wall of the outer mounting section, and one end of the rotary sleeve is rotatably mounted on the outer mounting section via a bearing; the rotary sleeve and the rotary motor are connected via a gear transmission. In actual use, the purpose of this design is to facilitate the installation of the rotary discharge sleeve and to realize the rotary drive of the rotary sleeve by the rotary motor through gears, thereby ensuring that the rotary sleeve can rotate; in this way, when the above-mentioned emulsion explosive in a molten state is in the rotary sleeve, an effective centrifugal force can be generated. In this way, the above-mentioned centrifugal force can be used to spray the above-mentioned emulsion explosive in a molten state to the surrounding walls of the deep hole of the open-pit mine step, so as to facilitate its further filling into the deep hole of the open-pit mine step.
[0010] Furthermore, the rotating sleeve is provided with a material guide notch, which is located on the side of the rotating sleeve and communicates with the material guide main shaft tube. In actual use, the design of the material guide notch is to enable the molten emulsion explosive to be ejected one by one from the material guide notch under the action of centrifugal force. In this way, it can gradually accumulate in the deep hole of the open-pit mine step, thereby achieving the effect of explosive charging without space retention. At the same time, the molten emulsion explosive will gradually solidify in the absence of high temperature and continuous heating, thus forming a solid explosive.
[0011] Furthermore, the rotary discharge sleeve also includes a material ejecting member, which is fixedly installed in the rotating sleeve; the material ejecting member includes an electric cylinder and a lifting cylinder head, and the lifting cylinder head is fixedly installed on the output shaft of the electric cylinder, and through the output shaft, it moves linearly along the axial direction of the rotating sleeve and abuts against the pipe mouth of the outer mounting section. In actual use, the purpose of this design is to play the role of an on-off switch through the abutment between the lifting cylinder head and the pipe mouth of the outer mounting section. In this way, in actual work, the temperature rise time of the emulsion explosive in the melting sleeve can be effectively prolonged, and its molten state can be effectively ensured. On the other hand, during the contraction process of its output shaft, the electric cylinder can also effectively change the size of the guide notch to adjust its size, facilitate the change of the injection amount, and then together with the rotating motor, realize the flow adjustment of centrifugal injection, further improving the scope of application.
[0012] Furthermore, one end section of the lifting cylinder head is inclined and close to the material guide notch. In actual use, the purpose of this design is to facilitate the tilting of materials and achieve more efficient centrifugal throwing.
[0013] From the above technical solution, it can be seen that the beneficial effects of the open-pit mine bench deep hole blasting device provided by the present invention are:
[0014] (1) In actual operation, the device heats up the solid emulsion explosive through the charging section to melt the emulsion explosive, and then through the efficient rotation of the rotary discharge sleeve, the above-mentioned molten emulsion explosive is efficiently stacked under the action of centrifugal force, effectively filling the bottom space of the deep hole of the open-pit mine step with material. In this way, the deep hole of the open-pit mine step is blasted by the blasting section; among them, the blasting section adopts the traditional electronic detonation method to effectively improve the explosion effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. In all the drawings, the various elements or parts are not necessarily drawn according to the actual scale.
[0016] Figure 1 A front view of an open-pit mine bench deep-hole blasting device provided by an embodiment of the present invention;
[0017] Figure 2 for Figure 1 The enlarged structural diagram of point A is shown;
[0018] Reference numerals:
[0019] Charging part 1, drug guide main shaft tube 11, fixed inner mounting platform 101, outer mounting section 102, melting sleeve 12, liquid injection sleeve 121, heating grid 122, liquid inlet 1211, liquid outlet 1212, rotating discharge sleeve 13, rotating sleeve 131, material guide notch 1311, rotating motor 132, material ejecting part 133, electric cylinder 1331, lifting cylinder head 1332, blasting part 2, fixed frame 3. DETAILED DESCRIPTION
[0020] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.
[0021] The embodiment is basically as shown in the attached Figures 1 to 2 As shown:
[0022] like Figure 1-2 As shown, the present embodiment provides an open-pit mine bench deep-hole blasting device, which can achieve effective charging of explosives at the bottom, reduce space retention, and improve blasting efficiency.
[0023] The present invention provides an open-pit mine step deep hole blasting device, comprising: a charging part 1, wherein the charging part 1 comprises a charge guide main shaft tube 11, a melting sleeve 12 and a rotating discharge sleeve 13, wherein one end of the charge guide main shaft tube 11 extends into the deep hole of the open-pit mine step; and explosives enter the deep hole of the open-pit mine step through the charge guide main shaft tube 11; the melting sleeve 12 is arranged on the inner wall of the charge guide main shaft tube 11, wherein the melting sleeve 12 is electrically connected to the outside and melts the blasting explosive by increasing the temperature; and a blasting part 2, wherein the blasting part 2 is arranged in the deep hole of the open-pit mine step and is electrically detonated to detonate the explosives. In actual operation, the device uses the charging part 1 to heat the original solid emulsion explosive to melt the emulsion explosive, and then through the efficient rotation of the rotating discharge sleeve 13, the above-mentioned molten emulsion explosive is efficiently stacked under the action of centrifugal force, effectively filling the bottom space of the deep hole on the open-pit mine step with material. In this way, the blasting part 2 is used to blast the deep hole on the open-pit mine step; among them, the blasting part 2 adopts the traditional electronic detonation method to effectively improve the explosion effect.
[0024] In this embodiment, it also includes a fixing frame 3, which is fixedly mounted outside the deep hole of the open-pit mine step, and the drug guide main shaft tube 11 is detachably mounted on the fixing frame 3. In actual use, the purpose of this design is to allow the drug guide main shaft tube 11 to be suspended in the deep hole of the open-pit mine step, which facilitates subsequent work.
[0025] In this embodiment, the drug guide spindle tube 11 is provided with a fixed inner mounting platform 101, and the fusion sleeve 12 is detachably mounted within the drug guide spindle tube 11, with one end of the fusion sleeve 12 abutting against the fixed inner mounting platform 101. In actual use, the purpose of this design is to achieve effective installation of the fusion sleeve 12 and limit its installation length, effectively ensuring stability during installation.
[0026] In this embodiment, the melting sleeve 12 includes a liquid injection sleeve 121 and a heating grid 122. The heating grid 122 is installed within the liquid injection sleeve 121 and electrically connected to an external power source. The liquid injection sleeve 121 is provided with a liquid inlet 1211 and a liquid outlet 1212. Liquid is injected into the liquid injection sleeve 121 through the liquid inlet 1211. In practice, this design is intended to achieve water-insulated heating of the emulsion explosive. This ensures a stable heating temperature of 100°C, enabling the emulsion explosive to be transformed from a solid state to an emulsified, molten state. In actual operation, as the emulsion explosive flows down the outer wall of the liquid injection sleeve 121, the heating grid 122 causes the water temperature within the liquid injection sleeve 121 to rise, achieving an emulsified, molten state. This facilitates subsequent charging.
[0027] In this embodiment, the medicine guiding main shaft tube 11 is also provided with an outer mounting section 102, and the rotating discharge sleeve 13 is rotatably mounted on the outer mounting section 102; the rotating discharge sleeve 13 includes a rotating sleeve 131 and a rotating motor 132; the rotating motor 132 is fixedly mounted on the outer wall of the outer mounting section 102, and one end of the rotating sleeve 131 is rotatably mounted on the outer mounting section 102 through a bearing; the rotating sleeve 131 and the rotating motor 132 are connected by gear transmission. In actual use, the purpose of this design is to facilitate the installation of the rotating discharge sleeve 13 and realize the rotational drive of the rotating sleeve 131 by the rotating motor 132 through gears to ensure that the rotating sleeve 131 can rotate; in this way, when the above-mentioned emulsion explosive in a molten state is in the rotating sleeve 131, an effective centrifugal force can be formed. In this way, the above-mentioned emulsion explosive in a molten state can be sprayed around the hole wall of the deep hole of the open-pit mine step through the above-mentioned centrifugal force, so as to facilitate its further filling into the deep hole of the open-pit mine step.
[0028] In this embodiment, the rotating sleeve 131 is provided with a material guide notch 1311, which is located on the side of the rotating sleeve 131 and communicates with the material guide main shaft tube 11. In actual use, the design of the material guide notch 1311 is to enable the molten emulsion explosive to be ejected one by one from the material guide notch 1311 under the action of centrifugal force. In this way, it can gradually accumulate in the deep hole of the open-pit mine step, thereby achieving the effect of explosive charging without space retention. At the same time, the molten emulsion explosive will gradually solidify in the absence of high temperature and continuously rise in temperature, thereby forming a solid explosive.
[0029] In this embodiment, the rotating discharge sleeve 13 also includes a lifting piece 133, and the lifting piece 133 is fixedly installed in the rotating sleeve 131; the lifting piece 133 includes an electric cylinder 1331 and a lifting cylinder head 1332, and the lifting cylinder head 1332 is fixedly installed on the output shaft of the electric cylinder 1331, and through the output shaft, it moves linearly along the axial direction of the rotating sleeve 131, and abuts against the pipe mouth of the outer mounting section 102. In actual use, the purpose of this design is to achieve the effect of an on-off switch by abutting the lifting cylinder head 1332 with the pipe mouth of the outer mounting section 102. In this way, in actual work, the heating time of the emulsion explosive in the melting sleeve 12 can be effectively prolonged, and its molten state can be effectively guaranteed. On the other hand, the electric cylinder 1331 can also effectively change the size of the guide notch 1311 during the contraction of its output shaft, thereby adjusting its size and facilitating the change of the injection amount. Together with the rotating motor 132, the flow rate of the centrifugal injection can be adjusted, further improving the scope of application.
[0030] In this embodiment, the cross section of one end of the lifting cylinder head 1332 is an inclined surface and is close to the direction of the material guide notch 1311. In actual use, the purpose of this design is to facilitate the tilting of materials and achieve more efficient centrifugal throwing.
[0031] To sum up, this open-pit mine step deep hole blasting device is not only reasonably designed, but also simple to operate. It can effectively realize the detonation of the deep hole of the open-pit mine step, and during the charging process, it greatly reduces the space retention in the deep hole of the open-pit mine step. Through efficient charging stacking, the charging efficiency is greatly improved. Therefore, this device is suitable for industry promotion.
[0032] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.
[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. 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 make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions 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 description of the present invention.
Claims
1. A deep hole blasting device for open pit mine steps, characterized in that: include: The charging part includes a charge guide main shaft tube, a melting sleeve and a rotating discharge sleeve, wherein one end of the charge guide main shaft tube extends into the deep hole of the open-pit mine step; and the explosive enters the deep hole of the open-pit mine step through the charge guide main shaft tube; The fusion sleeve is arranged on the inner wall of the lead main shaft tube, wherein the fusion sleeve is electrically connected to the outside and melts the blasting explosive by increasing the temperature; and The blasting unit is set in a deep hole on the step of the open-pit mine, and the explosives are detonated by electricity.
2. The open-pit mine bench deep hole blasting device according to claim 1, characterized in that: Also includes: A fixing frame is fixedly mounted outside a deep hole on a step of an open-pit mine, and the drug guide main shaft tube is detachably mounted on the fixing frame.
3. The open-pit mine bench deep hole blasting device according to claim 1, characterized in that: The medicine guiding main shaft tube is provided with a fixed inner mounting platform, the melting sleeve is detachably mounted in the medicine guiding main shaft tube, and one end of the melting sleeve abuts against the fixed inner mounting platform.
4. The open-pit mine bench deep hole blasting device according to claim 3, characterized in that: The melting sleeve includes a liquid injection sleeve and a heating grid, wherein the heating grid is installed in the liquid injection sleeve and is electrically connected to an external power supply; the liquid injection sleeve is provided with a liquid inlet and a liquid outlet; wherein the liquid injection sleeve injects liquid through the liquid inlet.
5. The open-pit mine bench deep hole blasting device according to claim 1, characterized in that: The medicine guide main shaft tube is also provided with an outer mounting section, and the rotary discharge sleeve is rotatably mounted on the outer mounting section; the rotary discharge sleeve includes a rotating sleeve and a rotating motor; the rotating motor is fixedly mounted on the outer wall of the outer mounting section, and one end of the rotating sleeve is rotatably mounted on the outer mounting section through a bearing; the rotating sleeve and the rotating motor are connected through a gear transmission.
6. The open pit mine bench deep hole blasting device according to claim 5, characterized in that: The rotating sleeve is provided with a material guiding notch, and the material guiding notch is arranged on the side of the rotating sleeve and communicates with the medicine guiding main shaft tube.
7. The open-pit mine bench deep hole blasting device according to claim 5, characterized in that: The rotary discharge sleeve also includes a lifting piece, which is fixedly installed in the rotating sleeve; the lifting piece includes an electric cylinder and a lifting cylinder head, and the lifting cylinder head is fixedly installed on the output shaft of the electric cylinder, and moves linearly along the axial direction of the rotating sleeve through the output shaft, and abuts against the pipe mouth of the outer mounting section.
8. The open-pit mine bench deep hole blasting device according to claim 7, characterized in that: The cross section of one end of the jacking cylinder head is an inclined surface and is close to the direction of the material guiding notch.