Charging system and rock drilling rig

Abstract

The present invention belongs to the technical field of drilling and blasting construction equipment, and specifically discloses a charging system and a drilling rig. The charging system includes a silo having a chamber for placing explosive rolls, an air pipe connected to the silo, and an air charging pipe connected to the air pipe. The air charging pipe forms an injection pipe for ejecting the explosive rolls forward, and the air pipe is used to provide an air source for ejecting the explosive rolls forward. The charging system also includes a connection portion for connecting to the boom of the drilling rig. The drilling rig includes the aforementioned charging system. The present invention abandons the prior art method of using rods to push the explosive rolls into the blasthole. Instead, it uses high-pressure air to blow the explosive rolls into the blasthole, achieving automated charging and improving the safety of the charging process.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling and blasting construction equipment, and in particular relates to a charging system and a rock drilling trolley. Background Art

[0002] Drilling and blasting construction involves drilling (blasting) holes in the section, installing explosive cartridges in the holes, and detonating the explosive cartridges. To improve efficiency and safety, drilling rigs have become widely used in drilling and blasting construction. Drilling rigs typically consist of a drill boom and a service arm, equipped with a drill rig and a propulsion mechanism. The drill rig is used to drill holes in the front section, and the propulsion mechanism is used to propel the drill rig back and forth along the drill boom. The service arm is equipped with a service platform. After drilling is completed, workers ascend the service platform and, using insulating rods such as bamboo poles and plastic pipes, sequentially deliver different types of explosives or spacers into the blasthole. This manual method of loading explosives presents problems such as poor safety and high labor intensity. Summary of the Invention

[0003] The purpose of the present invention is to provide a charging system to solve the technical problems of low efficiency and poor safety of manual charging in the prior art. The purpose of the present invention is also to provide a drilling rig with the above charging system.

[0004] To achieve the above-mentioned purpose, the technical solution of the charge system provided by the present invention is:

[0005] A charging system includes a silo having a accommodating cavity for placing explosive rolls, the silo being connected to an air pipe, the air pipe being connected to an air-blowing charging pipe, the air-blowing charging pipe forming an injection pipe for ejecting the explosive roll forward, the air pipe being used to provide an air source for ejecting the explosive roll forward, and the charging system also being provided with a connecting portion for connecting to a drilling rig boom.

[0006] The beneficial effect is that the present invention abandons the traditional method of using insulating rods to load explosive rolls into blastholes, and provides a charging system that uses airflow to blow explosive rolls. When in use, the charging system can be connected to the boom of the drilling rig and move with the boom. First, the explosive roll is placed in the silo. When the air charging tube is coaxial with the pre-drilled blasthole, high-pressure gas is blown out of the air pipe, blowing the explosive roll into the air charging tube, and then blowing it into the blasthole through the air charging tube to complete the charging. The present invention can automatically realize charging, and during the drug delivery process, there is no rigid contact between the drug delivery insulating rod and the explosive roll as in the traditional solution, which is safer.

[0007] As a further improvement, the silo is a funnel-type silo.

[0008] The beneficial effect is that compared with a silo structure with a width that can only accommodate one row of explosive rolls, the silo in this solution can accommodate more explosive rolls at a time, thereby improving construction efficiency.

[0009] As a further improvement, the side panels on at least one of the left and right sides of the silo are arc-shaped panels.

[0010] The beneficial effect is that such a design ensures that the explosive roll can still fall normally at a stable speed after the silo is turned to a certain angle along with the arm.

[0011] As a further improvement, the interior of the silo is further provided with at least one layer of partitions arranged front to back and extending vertically, and the partitions divide the silo into different accommodating chambers. Except for the accommodating chamber for placing explosive rolls, the remaining accommodating chambers are used for placing spacers or blockers. The air blowing and charging pipe and the air pipe are both connected to the bottom of the silo, and a silo door is provided at the bottom of each accommodating chamber.

[0012] The beneficial effect is that such a design meets the requirements of segmented charging, so that the charging system can be loaded with explosives of different proportions for blastholes of different positions and types, thereby achieving precise blasting.

[0013] As a further improvement, the partition includes two layers, and the two layers of partition divide the silo into three accommodating chambers, one accommodating chamber is used to place a spacer, and one accommodating chamber is used to place a blocking object.

[0014] As a further improvement, a connecting pipe is provided at the bottom of the silo. An opening for passing explosive rolls, spacers and blocking materials is provided on the side of the connecting pipe close to the silo door. One end of the connecting pipe is connected to the air pipe, and the other end is connected to the air charging pipe.

[0015] The beneficial effects are: improving the concentration of blowing energy and saving energy.

[0016] As a further improvement, the charging system is also provided with electronic switches and controllers for controlling each compartment door.

[0017] The beneficial effect is that the opening and closing of different doors can be automatically controlled according to different positions and types of explosive rolls, so as to realize different proportions of explosives.

[0018] As a further improvement, the air-blowing charge tube is a telescopic sleeve.

[0019] The beneficial effect is that if the charging system is connected to the drill arm, the retractable structure prevents the drill arm from interfering with the front section during drilling.

[0020] As a further improvement, the outer periphery of the air-blowing charge tube is further connected to a diffusion ring, the outer periphery of the air-blowing charge tube is provided with a communication hole for communicating with the diffusion ring, and the diffusion ring is provided with a diffusion hole for communicating with the communication hole.

[0021] The beneficial effect is that the air in the blasthole can be discharged outwards at an accelerated speed, making it easier for the explosive roll to be blown into the blasthole.

[0022] To achieve the above objectives, the technical solution of the rock drilling rig provided by the present invention is:

[0023] The drilling rig includes a boom, which is connected to a charging system. The charging system includes a silo, which has a accommodating cavity for placing explosive rolls. The silo is connected to an air pipe, which is connected to an air blowing charging pipe. The air blowing charging pipe forms an injection pipe for ejecting the explosive roll forward. The air pipe is used to provide an air source for ejecting the explosive roll forward. The charging system is also provided with a connecting portion for connecting to the boom of the drilling rig.

[0024] The beneficial effect is that the present invention abandons the traditional method of using insulating rods to load explosive rolls into blastholes, and provides a charging system that uses airflow to blow explosive rolls. When in use, the charging system can be connected to the boom of the drilling rig and move with the boom. First, the explosive roll is placed in the silo. When the air charging tube is coaxial with the pre-drilled blasthole, high-pressure gas is blown out of the air pipe, blowing the explosive roll into the air charging tube, and then blowing it into the blasthole through the air charging tube to complete the charging. The present invention can automatically realize charging, and during the drug delivery process, there is no rigid contact between the drug delivery insulating rod and the explosive roll as in the traditional solution, which is safer.

[0025] As a further improvement, the silo is a funnel-type silo.

[0026] The beneficial effect is that compared with a silo structure with a width that can only accommodate one row of explosive rolls, the silo in this solution can accommodate more explosive rolls at a time, thereby improving construction efficiency.

[0027] As a further improvement, the side panels on at least one of the left and right sides of the silo are arc-shaped panels.

[0028] The beneficial effect is that such a design ensures that the explosive roll can still fall normally at a stable speed after the silo is turned to a certain angle along with the arm.

[0029] As a further improvement, the interior of the silo is further provided with at least one layer of partitions arranged front to back and extending vertically, and the partitions divide the silo into different accommodating chambers. Except for the accommodating chamber for placing explosive rolls, the remaining accommodating chambers are used for placing spacers or blockers. The air blowing and charging pipe and the air pipe are both connected to the bottom of the silo, and a silo door is provided at the bottom of each accommodating chamber.

[0030] The beneficial effect is that such a design meets the requirements of segmented charging, so that the charging system can be loaded with explosives of different proportions for blastholes of different positions and types, thereby achieving precise blasting.

[0031] As a further improvement, the partition includes two layers, and the two layers of partition divide the silo into three accommodating chambers, one accommodating chamber is used to place a spacer, and one accommodating chamber is used to place a blocking object.

[0032] As a further improvement, a connecting pipe is provided at the bottom of the silo. An opening for passing explosive rolls, spacers and blocking materials is provided on the side of the connecting pipe close to the silo door. One end of the connecting pipe is connected to the air pipe, and the other end is connected to the air charging pipe.

[0033] The beneficial effects are: improving the concentration of blowing energy and saving energy.

[0034] As a further improvement, the charging system is also provided with electronic switches and controllers for controlling each compartment door.

[0035] The beneficial effect is that the opening and closing of different doors can be automatically controlled according to different positions and types of explosive rolls, so as to realize different proportions of explosives.

[0036] As a further improvement, the air-blowing charge tube is a telescopic sleeve.

[0037] The beneficial effect is that if the charging system is connected to the drill arm, the retractable structure prevents the drill arm from interfering with the front section during drilling.

[0038] As a further improvement, the outer periphery of the air-blowing charge tube is further connected to a diffusion ring, the outer periphery of the air-blowing charge tube is provided with a communication hole for communicating with the diffusion ring, and the diffusion ring is provided with a diffusion hole for communicating with the communication hole.

[0039] The beneficial effect is that the air in the blasthole can be discharged outwards at an accelerated speed, making it easier for the explosive roll to be blown into the blasthole. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of Example 1 of the charge system of the present invention;

[0041] Figure 2 for Figure 1 Bottom view of the middle silo;

[0042] Figure 3 for Figure 1 Cross-sectional view of the intermediate silo;

[0043] Figure 4 for Figure 1 A partial cross-sectional view of the connection between the middle diffusion ring and the air-blowing charge tube.

[0044] Description of reference numerals:

[0045] 1. Drill arm; 11. Drill rod; 2. Charging system; 21. Silo; 211. Partition; 212. Silo door; 213. Curved plate; 214. Connecting pipe; 22. Connecting plate; 23. Air-blowing charging pipe assembly; 231. Casing; 232. Telescopic pipe; 24. Air pipe; 25. Cylinder; 31. Controller; 32. Operation panel; 4. Diffuser ring. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0048] It should be noted that relational terms such as "first" and "second" that may appear are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, terms such as "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, elements defined by the phrase "including a..." do not exclude processes or methods that include the elements.

[0049] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "provided with" and "provided with" should be understood in a broad sense. For example, the object "provided with" may be a part of the main body, or may be arranged separately from the main body and connected to the main body. The connection may be detachable or non-detachable. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] The present invention is described in further detail below with reference to the examples.

[0052] Specific embodiment 1 of the charge system provided by the present invention:

[0053] like Figure 1 As shown, the charging system 2 includes a silo 21. The front end of the silo 21 (facing the tunnel face) is connected to an air charge pipe assembly 23, and the rear end is connected to an air pipe 24. The air charge pipe assembly 23 includes a sleeve 231 and a telescopic pipe 232. Both sleeve 231 and telescopic pipe 232 extend in the front-to-back direction. The telescopic pipe 232 is connected to the silo 21. The air opening of the air pipe 24 faces the telescopic pipe 232, allowing material in the silo 21 to fall into the sleeve. During operation, the air pipe 24 can be connected to the air compressor of the drilling rig to provide an air source for blowing the material in the air charge pipe assembly 23 forward. The telescopic pipe 232 can be extended and retracted along the sleeve 231. The charging system 2 also includes a connecting plate 22 for connecting to the drilling rig. In this embodiment, the charging system 2 is connected to the drill boom 1 of the drilling rig. Specifically, the silo 21 and the air charge pipe assembly 23 are both connected to the drill boom 1 via the connecting plate 22. In addition, the connecting plate 22 is also connected to a telescopic power device for driving the telescopic tube 232 to move forward and backward. In this embodiment, the telescopic power device is a cylinder 25. In other embodiments, the telescopic power device can be a hydraulic cylinder.

[0054] like Figure 2 and Figure 3 As shown, the cross-section of silo 21 is a "funnel-shaped" structure, with the lower end width being narrower than the upper end width. In other words, silo 21 has a funnel-like structure and is vertically provided with two layers of partitions 211, front and rear. These partitions 211 divide silo 21 into three chambers: one for explosives, one for spacers, and one for plugging objects. Each chamber has a controllably opened and closed door 212 at its bottom. A connecting pipe 214 is also provided at the bottom of silo 21. Near the door 212, openings are provided for the explosives, spacers, and plugging objects. When door 212 is opened, the material in the silo falls into connecting pipe 214. The front end of connecting pipe 214 communicates with the air-charging tube assembly 23, and the rear end communicates with the air pipe 24. Thus, connecting pipe 214 forms a connecting chamber that connects the air pipe 24 with the air-charging tube assembly 23.

[0055] The right side of the silo 21 (on the left and right sides of the tunnel) is connected to the drill arm 1 via a connecting plate 22, and the left side plate is a curved plate 213. This design ensures that when the silo 21 rotates with the drill arm 1 at a certain angle (no more than 90 degrees), the material in the silo 21 can still slide into the connecting pipe 214 at a stable speed.

[0056] The charging system in this embodiment also includes an electronic switch, a controller 31, an operating screen 32 and sensors for controlling the opening and closing of each door, automatically controlling the opening and closing of each door, matching different explosive formulas for blast holes (peripheral holes, auxiliary holes, groove holes, floor holes) of different locations and uses, and achieving precise blasting.

[0057] The working principle of this embodiment is as follows: the charging system 2 moves with the drill boom 1 of the drilling rig. When the air charging tube assembly 23 is coaxial with the pre-drilled blasthole, the telescopic tube 232 extends and inserts into the blasthole. The door of the hopper 21 opens, and the explosive roll, spacer, or plugging material falls into the connecting tube 214. The air pipe 24 begins to blow high-pressure gas forward, and the gas in the blasthole is discharged through the gap between the telescopic tube 232 and the blasthole. The explosive roll, spacer, or plugging material is blown forward into the blasthole, achieving automatic charging. Unlike the prior art, the charging system of this embodiment not only achieves automatic charging, but also does not require insulating rods to assist in pushing the explosive into the blasthole. Therefore, there is no rigid contact between the rod and the explosive roll, which improves safety.

[0058] The outer periphery of the telescopic tube 232 of the blowing charge tube assembly 23 is also connected to a diffusion ring 4, such as Figure 4 As shown, the diffuser ring 4 is provided with an annular groove. The outer periphery of the telescopic tube 232 is provided with a connecting hole that communicates with the diffuser ring 4. The inner side of the annular groove of the diffuser ring 4 is provided with a diffusion hole that communicates with the connecting hole of the telescopic tube 232. The gas within the telescopic tube 232 is blown outward through the diffusion hole and diffused to the surrounding area through the annular groove. During charging, the diffuser ring 4 is positioned at the orifice of the blasthole. The high-pressure air within the telescopic tube 232 is diffused to the surrounding area by the diffusion effect of the diffuser ring 4, accelerating air circulation around the orifice. This accelerates the discharge of air within the blasthole, making it easier to inject the explosive coil. Of course, the annular groove can be omitted, and the diffusion hole can be a tapered hole, which also provides a diffusing effect.

[0059] The second embodiment of the charging system provided by the present invention differs from the first embodiment primarily in that, in the first embodiment, the silo 21 is bell-mouth-shaped and equipped with two baffles, and the air pipe and air charging tube assembly 23 communicate with the bottom of the silo 21. In this embodiment, the silo, similar in structure to the connecting pipe 214 in the first embodiment, is cylindrical and can accommodate only one explosive roll. During use, the charging system is connected to the drilling rig's service arm, and an operator manually adds explosive rolls or other ingredients to the silo from the service platform of the service arm.

[0060] Specific embodiment 3 of the explosive charging system provided by the present invention differs from embodiment 1 primarily in that, in embodiment 1, the silo 21 is shaped like a "trumpet." In this embodiment, the silo is a cubic silo, wide enough to accommodate only one explosive roll. The explosive rolls are arranged vertically in a row, with the air pipe and the charge-inflating tube connected to the bottom of the silo. In this case, a silo door is not required. After the air pipe blows the bottommost explosive roll into the charge-inflating tube, the upper explosive rolls automatically fall to the bottom under the action of gravity and are subsequently blown into the charge-inflating tube by the air pipe.

[0061] Specific embodiment 4 of the charge charging system provided by the present invention differs from embodiment 1 primarily in that, in embodiment 1, the right side panel of the silo 21 is a curved panel 213. In this embodiment, both side panels of the silo are straight, resulting in a triangular cross-section. Both the air charge pipe and the air duct are connected to the bottom of the silo, eliminating the need for a silo door. Similar to embodiment 3, a connecting cavity is formed at the bottom of the silo, connecting the air charge pipe and the air duct.

[0062] Specific embodiment 5 of the charge charging system provided by the present invention differs from embodiment 1 primarily in that, in embodiment 1, each door in the silo 21 is automatically controlled by an electronic switch. In this embodiment, each door is a mechanical switch. Similar to embodiment 2, a worker standing on a service platform manually controls the opening and closing of each door.

[0063] Specific embodiment 6 of the explosive charging system provided by the present invention differs from embodiment 1 primarily in that, while in embodiment 1, the silo 21 is provided with two layers of partitions for the purpose of accommodating spacers and blockers to change the explosive ratio, this embodiment does not have partitions, and the internal chamber is only suitable for holding explosive rolls.

[0064] The seventh embodiment of the explosive charging system provided by the present invention differs from the first embodiment primarily in that, while the silo 21 in the first embodiment is provided with two layers of partitions, the present embodiment has only one layer of partitions, which divides the silo into two cavities: one for holding explosive cartridges, and the other for holding spacers or plugs.

[0065] Specific embodiment 8 of the charge system provided by the present invention differs from embodiment 1 primarily in that, in embodiment 1, the charge-blow pipe assembly 23 is a telescopic sleeve structure to prevent the charge-blow pipe assembly 23 from hitting the tunnel face during operation of the drill rod 11 of the drill boom 1. In this embodiment, the charge-blow pipe is a non-retractable hollow tube, and the charge system can be connected to the service arm of the drilling rig.

[0066] Specific embodiment 9 of the charge system provided by the present invention differs from embodiment 1 primarily in that, in embodiment 1, the charge system includes a connecting plate 22 for connecting to the drill boom 1. In this embodiment, the connecting plate is not included. During use, a clamp can be provided on the boom frame of the drill boom or service boom to connect the charge system to the boom frame of the drill boom or service boom via the clamp.

[0067] Specific embodiment 1 of the rock drilling rig in the present invention:

[0068] The rock drilling rig includes a drill arm, and the arm frame of the drill arm is connected to the charging system described in Example 1, 3, 4, 6, 7 or 9 of the above-mentioned charging system, which will not be described in detail here.

[0069] Specific embodiment 2 of the rock drilling rig in the present invention:

[0070] The drilling rig includes a drill arm and a service arm. The arm support of the service arm is connected to the charging system described in Example 2, 5, 8 or 9 of the above-mentioned charging system, which will not be described in detail here.

[0071] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A charging system, characterized in that: The hopper is a funnel-type hopper, and the side panels of at least one of the left and right sides of the hopper are arc-shaped panels. The interior of the hopper is also provided with two layers of partitions arranged front to back and extending vertically. The two layers of partitions divide the hopper into three accommodating chambers, one accommodating chamber for placing explosive rolls, one accommodating chamber for placing spacers, and one accommodating chamber for placing blocking objects. A hopper door is provided at the bottom of each accommodating chamber, and a connecting pipe is provided at the bottom of the hopper. An opening for passing explosive rolls, spacers and blocking objects is provided on the side of the connecting pipe close to the hopper door. One end of the connecting pipe is connected to the hopper door, and the other end is connected to the air charging pipe.

2. The charging system according to claim 1, characterized in that: The charging system is also provided with electronic switches and controllers for controlling each compartment door.

3. The charging system according to claim 1, characterized in that: The air-blowing charging tube is a telescopic sleeve.

4. The charging system according to claim 1, characterized in that: The outer periphery of the air-blowing charge tube is further connected to a diffusion ring. The outer periphery of the air-blowing charge tube is provided with a communication hole for communicating with the diffusion ring. The diffusion ring is provided with a diffusion hole for communicating with the communication hole.

5. A drilling rig, including a boom, characterized in that: The arm is connected to the charging system according to any one of claims 1 to 4.

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