Intelligent blasting device for strip mine

Abstract

The utility model discloses an intelligent blasting device for strip mine, relates to the technical field of mine blasting, and comprises a storage cylinder, a measuring rod and a driving piece, the bottom of the storage cylinder is provided with an explosive outlet hole located above a blast hole, the measuring rod is movably arranged in the storage cylinder along the vertical direction, and the bottom end of the measuring rod is located right above the explosive outlet hole; the portion, extending out of the storage cylinder, of the top end of the measuring rod forms an observation portion, an observation mark is arranged on the observation portion in the length direction of the observation portion, and the driving piece is used for driving the measuring rod to move upwards away from or penetrate through the medicine outlet hole downwards, so that when the measuring rod opens or blocks the medicine outlet hole, the observation portion ascends or descends upwards or downwards at the top of the storage cylinder. Through the arrangement of the measuring rod and the lifting motion of the measuring rod, the explosive outlet hole can be opened, blocked and opened, the purpose of conveying granular explosives in the storage cylinder into a blast hole is achieved, and conveying is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of mine blasting, in particular to an intelligent blasting device for open-pit mines. Background Art

[0002] In the process of open-pit blasting, charging operation is an indispensable part. At present, step drilling and blasting is usually adopted to peel off the overlying rock layer or ore body to form a blast hole, and then granular explosives are delivered into the blast hole to complete the charging operation. Afterwards, it is sealed and blasting work can be carried out.

[0003] After searching, the patent document with the authorization announcement number CN219956307U discloses an intelligent blasting device for open-pit mines, which includes a filling box, an open-pit mine body, a blasting hole, a cover plate, a feed pipe, a pull rod and a discharge port. The device is provided with a feed dust bag, an explosive box and a clamp. The explosive box is opened, the feed dust bag is put on the opening of the explosive box and fixed by the clamp. The explosive box is controlled to pour the internal explosives into the filling box through the feed dust bag and the feed pipe, and the added explosive powder enters the blasting hole through the discharge port, thereby realizing the filling of explosives into the blasting hole. The feed dust bag is provided to avoid the occurrence of explosive dust when pouring the explosives, and there is no need for the staff to align the feed pipe to pour the explosives.

[0004] However, the above-mentioned device will have the following problems when in use: when loading granular explosives into the blasthole, the granular explosives in the blasthole need to be loaded to a specified depth, and the above-mentioned device cannot control the loading depth of the granular explosives according to the actual situation on site, which may easily lead to overloading or underloading of the granular explosives. If the amount of granular explosives loaded is large, it is easy to cause waste of explosives and uncontrollable explosion accidents; if the amount of granular explosives loaded is small, it is not conducive to the blasting work.

[0005] Therefore, in response to the above problems, we propose an open-pit mine intelligent blasting device that can control the explosive filling depth to solve them. Utility Model Content

[0006] The purpose of the utility model is to solve the problems in the prior art and to propose an intelligent blasting device for open-pit mines. The blasting device opens or closes a charge hole by setting a measuring rod movable along a vertical direction, thereby conveniently completing the charge loading work. At the same time, during the charge loading process, the movable measuring rod can also be used to measure the depth of the charge in the blast hole at all times, so that the charge in the blast hole can be accurately controlled to a specified depth.

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] An open-pit mine intelligent blasting device includes a storage tube, a measuring rod and a driving member. A charge outlet hole located above a blast hole is opened at the bottom of the storage tube. The measuring rod is movably arranged in the storage tube along a vertical direction, and the bottom end of the measuring rod is located directly above the charge outlet hole. The portion of the measuring rod extending out of the storage tube from the top end constitutes an observation portion. An observation mark is arranged on the observation portion along its length direction. The driving member is used to drive the measuring rod to move upward away from or downward through the charge outlet hole.

[0009] As a further solution of the utility model: an indicator sign is arranged on the top of the storage tube, and the arrow of the indicator sign points to the observation mark on the measuring rod.

[0010] As a further solution of the utility model: a first camera is arranged on the top of the storage tube, and the lens of the first camera faces the observation mark of the measuring rod.

[0011] As a further solution of the utility model: a second camera is fixedly arranged at the bottom end of the measuring rod.

[0012] As a further solution of the utility model: the driving member includes a support frame and a wire wheel arranged on the support frame, and a pull rope is wound around the wire wheel, and the top end of the measuring rod is fixedly arranged at one end of the pull rope; an elastic member fixedly connected to the measuring rod is arranged on the storage cylinder, and the elastic member is in a compressed state so that the measuring rod has a tendency to move downward.

[0013] As a further solution of the utility model: a guide plate is fixedly provided on the inner side wall of the storage tube, and a guide hole coaxially arranged with the medicine outlet hole is opened on the guide plate, and the bottom end of the measuring rod movably passes through the guide hole.

[0014] As a further solution of the utility model: an auxiliary frame is fixedly arranged on the top of the storage cylinder, and an auxiliary wheel for supporting the pull rope is rotatably arranged on the top of the auxiliary frame.

[0015] As a further solution of the utility model: the support frame is provided with a fastening bolt for locking the wire wheel.

[0016] As a further solution of the utility model: a battery is fixedly arranged on the support frame, and the first camera and the second camera are both electrically connected to the battery.

[0017] As a further solution of the utility model: a light strip is arranged at the bottom end of the measuring rod.

[0018] As a further solution of the utility model: a display electrically connected to the first camera and the second camera is arranged on the support frame, and a battery is used to supply energy to the display.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. Through the arrangement of the measuring rod and the observation part thereon, the lifting movement of the measuring rod can realize the opening and blocking of the medicine outlet hole. The opening of the medicine outlet hole realizes the purpose of conveying the granular explosive inside the storage tube to the inside of the blast hole, and the transportation is convenient; at the same time, the movement of the measuring rod can drive the observation part to move accordingly, and the observation mark on the observation part can be observed by the staff, and then the length of the bottom end of the measuring rod extending into the inside of the blast hole can be obtained, that is, the filling depth of the explosive inside the blast hole can be obtained. By reciprocatingly opening and blocking the medicine outlet hole, the amount of explosive inside the blast hole gradually increases until the filling depth of the explosive inside the blast hole reaches the specified depth through the indirect observation of the observation part on the measuring rod, that is, the filling is completed, and the overall operation is very convenient; so far, the utility model can realize the online real-time monitoring effect of the filling depth of the explosive inside the blast hole through indirect observation.

[0021] 2. By setting the indicator sign, the arrow of the indicator sign points to the observation mark on the measuring rod. After the bottom end of the measuring rod extends into the blast hole, the filling depth of the blast hole explosives can be calculated by knowing the observation mark value when the bottom end of the measuring rod blocks the discharge hole, the observation mark value when the bottom end of the measuring rod touches the top of the explosives in the blast hole, and the initial depth of the blast hole, so as to facilitate the staff to accurately carry out the explosives filling work.

[0022] 3. Through the setting of the first camera and the second camera, the monitoring images of the first camera and the second camera can be viewed in real time using a display, which is convenient for staff to perform remote operations and avoid the dangers caused by on-site operations.

[0023] 4. By setting the elastic member, the elastic member is in a compressed state so that the measuring rod has a tendency to move downward. In the subsequent downward movement of the measuring rod, it will be affected by its own gravity and the elastic effect of the elastic member, making the downward movement of the measuring rod more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the overall structure of the measuring rod and the guide plate in the utility model.

[0029] In the figure: 1. storage cylinder; 2. measuring rod; 3. medicine outlet hole; 4. first camera; 5. second camera; 6. support frame; 7. wire wheel; 8. pull rope; 9. elastic member; 10. guide plate; 11. auxiliary frame; 12. auxiliary wheel; 13. fastening bolt; 14. battery; 15. light strip; 16. display; a. blast hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 4 As shown, the open-pit mine intelligent blasting device includes a storage cylinder 1 with granular explosives stored therein, a measuring rod 2 and a driving member. A drug outlet hole 3 is opened at the bottom of the storage cylinder 1. When in use, the drug outlet hole 3 is located above the blast hole a; the measuring rod 2 is movably arranged in the storage cylinder 1 along the plumb direction, and the bottom end of the measuring rod 2 is located directly above the drug outlet hole 3. The part of the top of the measuring rod 2 extending out of the storage cylinder 1 constitutes an observation part, and an observation mark (not shown in the figure) is arranged on the observation part along its length direction. The driving member is used to drive the measuring rod 2 to move upward away from or downward through the drug outlet hole 3, so that the upward movement of the measuring rod 2 will open the drug outlet hole 3, and the downward movement of the measuring rod 2 will block the drug outlet hole 3. Specifically, when the driving member is used to drive the measuring rod 2 to open the medicine outlet hole 3, the granular explosive inside the storage tube 1 will be transported from the medicine outlet hole 3 to the inside of the blast hole a. After the corresponding amount of explosives is transported, the measuring rod 2 is driven to move downward until the bottom end of the measuring rod 2 is inserted into the medicine outlet hole 3, thereby blocking the medicine outlet hole 3 and preventing the explosive inside the storage tube 1 from continuing to flow into the inside of the blast hole a, thereby completing the explosive loading work.

[0033] On the basis of the above-mentioned arrangement of the observation part and the observation mark, when the measuring rod 2 opens or blocks the medicine outlet hole 3, the observation part will drive the observation mark thereon to move upward or downward at the top of the storage tube 1, and then the staff can know the position of the measuring rod 2 on the storage tube 1 by observing the position of the observation mark at the top of the storage tube 1, that is, know the length of the bottom end of the measuring rod 2 extending downward into the borehole a. Specifically, when the bottom end of the measuring rod 2 blocks the medicine outlet hole 3, the value of the observation mark at the top of the storage tube 1 at this time is recorded as A, and then in the process of opening the medicine outlet hole 3 to transport granular explosives into the borehole a, the staff estimates the filling depth of the amount of explosives transported into the borehole a at this time. Before the filling depth reaches the specified filling depth, the staff can drive the measuring rod 2 downward to block the medicine outlet hole 3, and then continue to drive the measuring rod 2 downward until the bottom end of the measuring rod 2 touches the top of the explosive in the borehole a. At this time, the position of the measuring rod 2 on the storage tube 1 is The observation mark value of the observation part located at the top of the storage tube 1 is B, that is, the length C=AB of the measuring rod 2 extending into the borehole a. Then, the depth of the borehole a in the initial state is subtracted from C to obtain the filling depth of the explosive in the borehole a at this time. If this filling depth is too small, the discharge hole 3 can be opened again to allow the explosive in the storage tube 1 to be transported to the borehole a. The opening time is controlled, and then the discharge hole 3 is blocked and the filling depth is measured again. This process is repeated until the filling depth of the explosive in the borehole a meets the specified depth requirement, and the explosive loading work is completed.

[0034] When the observation part drives the observation mark thereon and the top of the storage tube 1 to move upward or downward until they are stable, in order to facilitate the staff to read the value of the observation mark more accurately, an indicator sign (not shown in the figure) can be set on the top of the storage tube 1, and the arrow of the indicator sign points to the observation mark on the measuring rod 2.

[0035] It should be noted that the observation identifier in this embodiment can be represented in the following forms:

[0036] 1) The observation mark is set as a linear scale mark. When the observation part moves, the linear scale mark will be driven to move accordingly. The staff can know the length of the bottom end of the measuring rod 2 inside the blast hole a according to the linear scale mark value pointed by the arrow on the indicator plate;

[0037] 2) The observation mark is composed of a plurality of strip areas of different colors, for example, it is set as a three-color strip area, which is arranged from top to bottom in the observation part, and its colors are yellow, green and red from top to bottom. During the process of loading explosives, when the arrow of the indicator sign points to the yellow strip area, it means that the length of the bottom end of the measuring rod 2 extending into the inside of the blasthole a is long, the filling depth of the explosives is small, and it is unqualified; when the arrow of the indicator sign points to the green strip area, it means that the length of the bottom end of the measuring rod 2 extending into the inside of the blasthole a is within the allowable error range, and the filling depth of the explosives is qualified; when the arrow of the indicator sign points to the red strip area, it means that the length of the bottom end of the measuring rod 2 extending into the inside of the blasthole a is small, the filling depth of the explosives is small, and it is unqualified.

[0038] Regarding the arrangement of the driving member mentioned above, the driving member includes a support frame 6 and a reel 7 arranged on the support frame 6, and a pull rope 8 is wound on the reel 7, and the top end of the measuring rod 2 is fixedly arranged at one end of the pull rope 8. Specifically, an auxiliary frame 11 can be fixedly arranged on the top of the storage tube 1, and an auxiliary wheel 12 for supporting the pull rope 8 is rotatably arranged on the top of the auxiliary frame 11. A fastening bolt 13 for locking the reel 7 is arranged on the support frame 6. In the initial state, the bottom end of the measuring rod 2 is inserted into the medicine outlet hole 3, and the granular explosive inside the storage tube 1 cannot flow, and then the locking of the reel 7 by the fastening bolt 13 is released, driving the reel 7 to rotate, so that the pull rope 8 drives the measuring rod 2 to move upward, until the bottom end of the measuring rod 2 moves upward out of the medicine outlet hole 3, and the medicine outlet hole 3 is opened. This state can be controlled by Figure 1 To indicate; when the medicine outlet hole 3 needs to be blocked after being opened for a corresponding period of time, under the action of the gravity of the measuring rod 2, the measuring rod 2 will move downward until the bottom end of the measuring rod 2 is inserted into the medicine outlet hole 3, thereby blocking the medicine outlet hole 3.

[0039] like Figure 1 As shown, in the process of the measuring rod 2 moving downward by its own weight, in order to enhance the downward movement trend of the measuring rod 2, an elastic member 9 fixedly connected to the measuring rod 2 can be provided on the storage tube 1, and the elastic member 9 is in a compressed state, so that the measuring rod 2 has a downward movement trend. In the subsequent downward movement of the measuring rod 2, it will be affected by its own weight and the elastic effect of the elastic member 9, so that the downward movement of the measuring rod 2 is more stable. It should be noted that the elastic member 9 in this embodiment can be set as a conventional technical means in the prior art such as a spring.

[0040] like Figure 1 and Figure 4 As shown, during the movement of the measuring rod 2, in order to keep it in a vertical direction during the upward or downward movement, a guide plate 10 can be fixedly provided on the inner wall of the storage tube 1, and a guide hole coaxially arranged with the medicine outlet hole 3 is opened on the guide plate 10, and the bottom end of the measuring rod 2 movably passes through the guide hole.

[0041] Embodiment 2:

[0042] like Figure 1-Figure 2 As shown, the difference between this embodiment and the first embodiment is that in this embodiment, a first camera 4 is provided at the top of the storage tube 1, and the lens of the first camera 4 is directly facing the observation mark of the measuring rod 2, so that the observation mark of the corresponding position can be viewed through the first camera 4, and it is not necessary to rely on the indicator plate for reading. At the same time, in the process of the measuring rod 2 extending downward into the blasthole a, in order to make the bottom end of the measuring rod 2 accurately contact the top of the explosive inside the blasthole a, a second camera 5 can be fixedly provided at the bottom end of the measuring rod 2, and the top of the explosive inside the blasthole a can be observed by the second camera 5. Furthermore, a light strip 15 can also be provided at the bottom end of the measuring rod 2, and the light strip 15 can be used to illuminate the inside of the blasthole a, so that the second camera 5 can observe more clearly.

[0043] Embodiment three:

[0044] Furthermore, the difference between this embodiment and the second embodiment is that a cleaning ring can be fixedly provided on the inner side of the medicine outlet hole 3. In the process of inserting the measuring rod 2 into the medicine outlet hole 3 from top to bottom, the measuring rod 2 will pass through the cleaning ring. The diameter of the cleaning ring is adapted to the diameter of the measuring rod 2. Then, in the process of the movement of the measuring rod 2, the cleaning ring can clean the dust and other foreign matters on the outside of the measuring rod 2, thereby ensuring the normal operation of the second camera 5.

[0045] Embodiment 4:

[0046] like Figure 3 As shown, the difference between this embodiment and the above-mentioned embodiment 2 or embodiment 3 is that in this embodiment, a battery 14 is fixedly arranged on the support frame 6, and the first camera 4 and the second camera 5 are both electrically connected to the battery 14, and the battery 14 can be used to power the first camera 4 and the second camera 5. At the same time, a display 16 electrically connected to the first camera 4 and the second camera 5 is arranged on the support frame 6, and the battery 14 is used to supply energy to the display 16, and the monitoring screen of the first camera 4 and the second camera 5 can be viewed in real time by the display 16, which is convenient for the staff to perform remote operation and avoid the danger caused by on-site operation.

[0047] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. Open-pit mine intelligent blasting device, characterized in that: The invention comprises a storage tube (1), a measuring rod (2) and a driving member. The storage tube (1) is provided with a medicine outlet hole (3) located above a blast hole (a) at the bottom. The measuring rod (2) is movably arranged in the storage tube (1) along a vertical direction, and the bottom end of the measuring rod (2) is located directly above the medicine outlet hole (3). The portion of the top end of the measuring rod (2) extending out of the storage tube (1) constitutes an observation portion. The observation portion is provided with an observation mark along its length direction. The driving member is used to drive the measuring rod (2) to move upward away from or downward through the medicine outlet hole (3).

2. The open-pit mine intelligent blasting device according to claim 1 is characterized in that: An indicator plate is arranged on the top of the storage tube (1), and the arrow of the indicator plate points toward the observation mark on the measuring rod (2).

3. The open-pit mine intelligent blasting device according to claim 1, characterized in that: A first camera (4) is arranged on the top of the storage tube (1), and the lens of the first camera (4) faces the observation mark of the measuring rod (2).

4. The open-pit mine intelligent blasting device according to claim 3 is characterized in that: A second camera (5) is fixedly arranged at the bottom end of the measuring rod (2).

5. The open-pit mine intelligent blasting device according to claim 4 is characterized in that: The driving member comprises a support frame (6) and a wire wheel (7) arranged on the support frame (6), and a pull rope (8) is wound around the wire wheel (7), and the top end of the measuring rod (2) is fixedly arranged on one end of the pull rope (8); an elastic member (9) fixedly connected to the measuring rod (2) is arranged on the storage cylinder (1), and the elastic member (9) is in a compressed state so that the measuring rod (2) has a tendency to move downward.

6. The open-pit mine intelligent blasting device according to any one of claims 1 to 5, characterized in that: A guide plate (10) is fixedly arranged on the inner wall of the storage cylinder (1), and a guide hole coaxially arranged with the medicine outlet hole (3) is opened on the guide plate (10), and the bottom end of the measuring rod (2) movably passes through the guide hole.

7. The open-pit mine intelligent blasting device according to claim 5, characterized in that: An auxiliary frame (11) is fixedly arranged on the top of the storage cylinder (1), and an auxiliary wheel (12) for supporting the pull rope (8) is rotatably arranged on the top of the auxiliary frame (11).

8. The open-pit mine intelligent blasting device according to claim 7, characterized in that: The support frame (6) is provided with a fastening bolt (13) for locking the wire wheel (7).

9. The open-pit mine intelligent blasting device according to claim 8, characterized in that: A storage battery (14) is fixedly arranged on the support frame (6), and the first camera (4) and the second camera (5) are both electrically connected to the storage battery (14).

10. The open-pit mine intelligent blasting device according to any one of claims 7 to 9, characterized in that: A light strip (15) is provided at the bottom end of the measuring rod (2).

Images