Injection type blast hole backfilling device
By using a rotating rod and a mixing rod to agitate the slag in the injection-type blast hole backfilling device, combined with the oscillation of the material pipe device, the problems of slag blockage and uneven distribution were solved, achieving smooth discharge of slag and uniform filling in the blast holes, thus improving the compactness and stability of the filling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建省新华都工程有限责任公司
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-17
AI Technical Summary
Existing injection-type blast hole backfilling devices are prone to jamming and uneven distribution during blast hole backfilling, resulting in poor blast hole discharge and inability to completely and densely fill the blast holes.
The slag is stirred by rotating rods and mixing rods in the bottom box of the silo, and combined with the swing of the material pipe device, the slag is ensured to be evenly distributed in the blast hole. The amount of slag filling is controlled in real time by visual sensors and laser testers.
It improves the fluidity and discharge speed of the excavated soil, ensures that the excavated soil is evenly distributed in the blast hole, enhances the compactness and stability of the filling, and reduces the waste of excavated soil and the risk of equipment jamming.
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Figure CN224136492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blast hole backfilling technology, specifically to an injection-type blast hole backfilling device. Background Technology
[0002] Backfilling blast holes in engineering projects serves three main purposes. First, it enhances the utilization rate of blasting energy, allowing the explosive energy to concentrate more effectively on rock breaking, reducing energy loss outside the hole, and improving blasting efficiency. Second, it effectively controls flyrock, reducing the risk of injury to surrounding facilities and personnel from flying debris. Third, it helps reduce blasting noise and dust by blocking the blast holes, hindering noise propagation and dust dispersion, thus mitigating adverse impacts on the environment and human health.
[0003] The existing Chinese utility model patent with publication number CN210773723U discloses a backfilling device for engineering blasting holes. The key technical features of this backfilling device are: a placement platform, a backfilling funnel, and a positioning assembly. Two side-by-side handrails are fixedly installed on the right side of the placement platform, and connecting rods are fixedly installed at the four corners of the bottom. The bottom ends of the connecting rods are equipped with casters. Two limiting blocks are fixedly installed on the top of the placement platform near the handrails. A first fixing head is fixedly installed on one side of the two limiting blocks near the edge of the placement platform, and a first limiting spring is connected to the first fixing head. The backfilling funnel is embedded through and embedded in the placement platform, located to the left of the limiting blocks and between the two connecting rods. This backfilling device for engineering blasting holes is easy to move and transfer, has good mobility, saves time and labor, and eliminates the need for manual support of the funnel during the filling process. The fixing method is extremely reliable and safe.
[0004] Currently, the injection-type borehole backfilling devices in use still have the following problems:
[0005] When backfilling blast holes with excavated soil, the large volume and excessive weight of the excavated soil can cause it to get stuck inside the equipment during dumping, affecting the backfilling progress. At the same time, the material pipe will concentrate and pile the excavated soil together during backfilling, resulting in uneven distribution of the excavated soil inside the blast holes and inability to be completely filled and compacted. Utility Model Content
[0006] The purpose of this invention is to provide an injection-type borehole backfilling device to solve the problems mentioned in the background art.
[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:
[0008] The injection-type blast hole backfilling device provided by this utility model includes a working frame, a material pipe device, and a silo bottom box. The material pipe device is installed in the middle of the working frame, and the top of the material pipe device and the bottom of the silo bottom box are interconnected. A fixing block is fixedly installed on one side of the inner wall of the material pipe device, and a connecting rod is fixedly connected above the fixing block. An installation ring is fixedly installed at one end of the connecting rod, and the installation ring is located inside the outer ring. A driver is installed on one side of the outer ring.
[0009] The bottom box of the silo has a conical groove in the middle, and a motor box is installed at the bottom of the groove. A rotating rod is rotatably connected to the top of the motor box, and mixing rods are installed on the four sides of the rotating rod. One side of the mixing rod is fixedly connected to the scraper.
[0010] Preferably, the connecting rod is located on the inner side of the material pipe device, and the outer ring is movably installed at the bottom of the hopper bottom box. A side block is fixedly installed on one side of the outer ring, and a top rod is inserted inside the side block. One end of the top rod is movably connected to the driver, and the outer ring rotates through the top rod and the driver.
[0011] Preferably, a hopper is installed on one side of the upper part of the working frame, and a pressurizing device is installed on one side of the hopper. The pressurizing device is located on the upper side of the working frame, and a pressurizing pipe is connected between the pressurizing device and the hopper. The hopper is located above the bottom box of the hopper.
[0012] Preferably, the rotating rod is located in the middle of the internal groove of the bottom box of the silo, and the upper part of the rotating rod is conical. Two sets of rings are sleeved on the outside of the rotating rod, and mixing rods of different lengths extend from the outside of the two sets of rings.
[0013] Preferably, the hopper has material holes of different sizes on its upper and lower sides, and the top opening of the material pipe device is located at the bottom edge of the lower material hole, the pressure pipe is located above the upper material hole, and the rotating rod is inserted into the lower material hole.
[0014] Preferably, a vision sensor is installed in the middle of the working frame, a laser tester is installed on one side of the vision sensor, and a material pipe device is provided on the other side of the vision sensor.
[0015] Preferably, the scraper is externally attached to the side of the groove inside the bottom box of the hopper, and the mixing rod is located below the hopper.
[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:
[0017] 1. When backfilling the blast holes, the silo pressurizes the slag inside and discharges it in sequence through a pressurizing device. The silo is also equipped with a rotating rod that agitates the slag inside, increasing the fluidity of the slag and ensuring smooth discharge. At the same time, the mixing rod and scraper mix the slag at the bottom, preventing blockage and keeping the bottom of the slag loose, which increases the fluidity of the slag and improves the discharge speed.
[0018] 2. When backfilling the blast holes, the excavated soil is filled into the blast holes through the material pipe device. The material pipe device rotates through the connecting rod and the outer ring, causing the material pipe device to swing inside the blast holes. This allows the excavated soil to be evenly distributed inside the blast holes during backfilling, making the internal space of the blast holes more compact and reasonable, while increasing the stability of the blast holes. Attached Figure Description
[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the bottom box of the silo of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the hopper of this utility model;
[0024] Figure 4 This is a schematic diagram of the material tube device of this utility model;
[0025] In the picture:
[0026] 1. Working frame; 2. Hopper; 3. Pressurizing pipe; 4. Pressurizing device; 5. Material pipe device; 51. Fixing block; 52. Connecting rod; 53. Mounting ring; 54. Outer ring; 55. Side block; 56. Top rod; 57. Driver; 6. Vision sensor; 7. Laser tester; 8. Hopper bottom box; 81. Motor box; 82. Rotating rod; 83. Circular ring; 84. Mixing rod; 85. Scraper; 9. Material hole. Detailed Implementation
[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0028] Please see Figures 1-4 The injection-type blast hole backfilling device includes a working frame 1, a material pipe device 5, and a hopper bottom box 8. A hopper 2 is installed on one side of the upper part of the working frame 1, and a pressurizing device 4 is installed on one side of the hopper 2. The pressurizing device 4 is located on the upper side of the working frame 1, and a pressurizing pipe 3 is connected between the pressurizing device 4 and the hopper 2.
[0029] For details, please refer to the following: Figure 1 As shown, the material pipe device 5 is installed in the middle of the working frame 1, and the top of the material pipe device 5 and the bottom of the hopper bottom box 8 are interconnected. A fixing block 51 is fixedly installed on one side of the inner wall of the material pipe device 5, and a connecting rod 52 is fixedly connected above the fixing block 51. An installation ring 53 is fixedly installed at one end of the connecting rod 52, and the installation ring 53 is located inside the outer ring 54. A driver 57 is installed on one side of the outer ring 54.
[0030] In this embodiment, the connecting rod 52 is located on the inner side of the material tube device 5, and the outer ring 54 is movably installed on the bottom of the hopper bottom box 8. A side block 55 is fixedly installed on one side of the outer ring 54, and a top rod 56 is inserted inside the side block 55. One end of the top rod 56 is movably connected to the driver 57, and the outer ring 54 rotates through the top rod 56 and the driver 57.
[0031] The present invention relates to an injection-type blast hole backfilling device. The material pipe device 5 fills the slag inside the hopper 2 into the blast hole. At the same time, the material pipe device 5 is connected to the outer ring 54 through the fixing block 51 and the connecting rod 52. The outer ring 54 is rotated by the driver 57 and the top rod 56, so that the material pipe device 5 swings above the blast hole, allowing the slag to be filled evenly inside the blast hole, making the slag inside the blast hole dense and increasing the stability between the slag.
[0032] The hopper 2 is located above the hopper bottom box 8. A vision sensor 6 is installed in the middle of the working frame 1, and a laser tester 7 is installed on one side of the vision sensor 6. A material pipe device 5 is set on the other side of the vision sensor 6.
[0033] The injection-type blast hole backfilling device of this utility model uses a vision sensor 6 to monitor the image of the blast hole position in real time and perform blast hole edge recognition. A laser tester 7 measures the remaining depth of the blast hole in real time. When the blast hole edge outline disappears and the remaining depth is less than zero, the pressurization of the pressurization device 4 is stopped.
[0034] For details, please refer to the following: Figure 2 As shown, a conical groove is provided in the middle of the bottom box 8 of the silo, and a motor box 81 is installed at the bottom of the groove. A rotating rod 82 is rotatably connected to the top of the motor box 81, and mixing rods 84 are installed on the four sides of the rotating rod 82. One side of the mixing rod 84 is fixedly connected to the scraper 85.
[0035] In this embodiment, the rotating rod 82 is located in the middle of the inner groove of the bottom box 8 of the hopper, and the upper part of the rotating rod 82 is conical. Two sets of rings 83 are sleeved on the outside of the rotating rod 82, and mixing rods 84 of different lengths extend from the outside of the two sets of rings 83. The outside of the scraper 85 is attached to the side of the inner groove of the bottom box 8 of the hopper, and the mixing rod 84 is located below the hopper 2. Different sized material holes 9 are opened on the upper and lower sides of the inside of the hopper 2, and the top opening of the material pipe device 5 is located at the bottom edge of the lower material hole 9. The pressure pipe 3 is located above the upper material hole 9, and the rotating rod 82 is inserted into the inside of the lower material hole 9.
[0036] This utility model discloses an injection-type blast hole backfilling device. The bottom box 8 and the hopper 2 are used to fill the slag. The bottom box 8 rotates the slag inside the hopper 2 through the central rotating rod 82, which disperses the slag inside the hopper 2 and prevents it from accumulating and being difficult to discharge. The mixing rod 84 and the scraper 85 are set to agitate the slag at the bottom of the hopper 2, allowing the slag to flow smoothly. At the same time, the scraper 85 scrapes away the slag remaining on the edge of the bottom box 8, which not only reduces the waste of slag resources, but also prevents the bottom outlet diameter of the bottom box 8 from becoming smaller.
[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An injection gun backfill device comprising a service rig (1), a tube device (5) and a hopper base box (8), characterized in that: The material pipe device (5) is installed in the middle of the working frame (1), and the top of the material pipe device (5) and the bottom of the hopper bottom box (8) are interconnected. A fixing block (51) is fixedly installed on one side of the inner wall of the material pipe device (5), and a connecting rod (52) is fixedly connected above the fixing block (51). An installation ring (53) is fixedly installed at one end of the connecting rod (52), and the installation ring (53) is located inside the outer ring (54). A driver (57) is installed on one side of the outer ring (54). The bottom box (8) of the silo has a conical groove in the middle, and a motor box (81) is installed at the bottom of the groove. A rotating rod (82) is rotatably connected to the top of the motor box (81), and mixing rods (84) are installed on the four sides of the rotating rod (82). One side of the mixing rod (84) is fixedly connected to the scraper (85).
2. The injection cannon backfill device of claim 1, wherein: The connecting rod (52) is located on the inner side of the material pipe device (5), and the outer ring (54) is movably installed on the bottom of the hopper bottom box (8). A side block (55) is fixedly installed on one side of the outer ring (54). A top rod (56) is inserted inside the side block (55), and one end of the top rod (56) is movably connected to the driver (57). The outer ring (54) rotates through the top rod (56) and the driver (57).
3. The injection cannon backfill device of claim 1, wherein: A hopper (2) is installed on one side of the upper part of the working frame (1), and a pressurizing device (4) is installed on one side of the hopper (2). The pressurizing device (4) is located on the upper side of the working frame (1), and a pressurizing pipe (3) is connected between the pressurizing device (4) and the hopper (2). The hopper (2) is located above the hopper bottom box (8).
4. The injection cannon backfill device of claim 1, wherein: The rotating rod (82) is located in the middle of the internal groove of the bottom box (8) of the hopper, and the upper part of the rotating rod (82) is conical. Two sets of rings (83) are sleeved on the outside of the rotating rod (82), and mixing rods (84) of different lengths extend from the outside of the two sets of rings (83).
5. The injection cannon backfill device of claim 3, wherein: The hopper (2) has material holes (9) of different sizes on its upper and lower sides. The top opening of the material pipe device (5) is located at the bottom edge of the lower material hole (9). The pressure pipe (3) is located above the upper material hole (9), and the rotating rod (82) is inserted into the lower material hole (9).
6. The injection cannon backfill device of claim 1, wherein: A vision sensor (6) is installed in the middle of the working frame (1), and a laser tester (7) is installed on one side of the vision sensor (6), and a material pipe device (5) is provided on the other side of the vision sensor (6).
7. The injection cannon backfill device of claim 3, wherein: The scraper (85) is attached to the side of the groove inside the bottom box (8) of the hopper, and the mixing rod (84) is located below the hopper (2).
Citation Information
Patent Citations
Engineering blasting hole backfilling device
CN210773723U