Surface soil layered covering and curing device for open pit coal mine dumping site

Abstract

The utility model relates to the technical field of coal mines, in particular to an opencast coal mine waste dump surface soil layered covering and solidifying device which comprises a material box and a threaded sleeve, a first bearing is embedded in the top of a fixing frame, a first fixing rod is fixedly installed on an inner ring of the first bearing, and a motor is installed on the top of the fixing frame above the first fixing rod. First stirring rods are installed on the outer side of the section, extending into the material box, of the first fixing rod in an annular array mode, a connecting rod is welded to the bottom of the first fixing rod, second fixing rods are welded to the bottom of the connecting rod, reciprocating lead screws are fixedly installed on inner rings of two second bearings, and the threaded sleeves are connected with the reciprocating lead screws in an engaged mode; a support is welded to the side, away from the material box, of the threaded sleeve, and a pressing plate is installed at the bottom of the support. The material mixing device has the advantages that material particles attached to the inner wall of the material box are scraped down and backfilled to the ground in the process of mixing the materials in the material box, and the materials are compacted on the ground.

Description

Technical Field

[0001] This utility model relates to the technical field of open-pit coal mine spoil heaps, specifically to a device for layering and solidifying topsoil in open-pit coal mine spoil heaps. Background Technology

[0002] An open-pit coal mine spoil heap is an area where coal seam cover and waste rock are transported to the surface and piled up during the open-pit coal mining process. These piled-up cover and waste rock are commonly referred to as "gangue" or "coal gangue." Open-pit coal mine spoil heaps cover a large area and are mainly used to store the earth and rock generated during mining. They are rationally arranged and safety measures are implemented to ensure minimal environmental impact. Open-pit coal mine spoil heaps play an important role in the coal industry and must also comply with relevant environmental protection regulations and standards to reduce pollution and minimize damage to the surrounding ecosystem. Open-pit coal mine spoil heaps need to be backfilled to reduce environmental pollution and restore vegetation after land reclamation. Backfilling can reduce or avoid the negative environmental impacts caused by open-pit coal mines.

[0003] During the backfilling process, workers need to compact the backfill materials, such as gravel and soil, on the surface of the open-pit coal mine spoil heap. This helps to ensure that the surface is flat and stable after backfilling, improves the bearing capacity of the foundation, and reduces the risk of geological disasters. Good compaction can effectively improve the stability and safety of the backfill site. Currently, the materials are compacted after the backfilling is completed, which makes the materials backfilled before compaction easily loosened and slipped by external factors, affecting the quality of backfilling and reducing the efficiency of backfilling. Utility Model Content

[0004] The purpose of this utility model is to provide a topsoil layering and solidification device for open-pit coal mine spoil heaps. It has the advantages of scraping off the material particles adhering to the inner wall of the material box and backfilling them onto the ground during the mixing process of the material inside the material box, and compacting the material onto the ground. This solves the problem that the backfill material cannot be compacted in time during the backfilling process of open-pit coal mine spoil heaps, which affects the backfilling efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a topsoil layering and solidification device for open-pit coal mine spoil heaps, comprising a material box and a screw sleeve. A fixing frame is welded to the top of the material box, a bearing is embedded in the top of the fixing frame, a fixing rod is fixedly installed on the inner ring of the bearing, a motor is installed on the top of the fixing frame above the fixing rod, a stirring rod is installed in a ring array on the outer side of a section of the fixing rod extending into the material box, a connecting rod is welded to the bottom of the fixing rod, a fixing rod is welded to the bottom of the connecting rod, two bearings are symmetrically installed on the side of the material box, a reciprocating screw is fixedly installed on the inner ring of the two bearings, the screw sleeve is meshed with the reciprocating screw, a bracket is welded to the side of the screw sleeve away from the material box, and a pressure plate is installed at the bottom of the bracket.

[0006] When using the topsoil layering and solidification device for open-pit coal mine spoil heaps in this technical solution, backfill materials such as crushed stone and soil are added into the material box through the feed inlet on the top of the material box. The material box stores the material. A push-pull force can be applied to the material box using a handle, or the handle can be fixedly connected to the drive mechanism using bolts or other tools through the fixing holes. The drive mechanism can move the material box to a different position. The material box moves on the ground via casters at the bottom. After moving into the open-pit coal mine spoil heap, the motor drives the pulley at the top of the fixed rod to rotate through the transmission structure. The pulley drives the fixed rod to rotate, which in turn drives the mixing rod to rotate. The mixing rod then moves the backfill material inside the material box. During mixing, the first fixed rod rotates, driving the scraper to rotate via the connecting rod. The scraper scrapes down material particles adhering to the inner wall of the hopper. The mixed material inside the hopper is discharged through the discharge pipe. The first fixed rod rotates, driving the second fixed rod to rotate via the connecting plate. The second fixed rod then drives the second mixing rod to rotate, which in turn stirs the material passing through the discharge pipe. The discharge pipe then backfills the material into uneven areas of the open-pit coal mine spoil heap. Two pulleys drive a reciprocating screw to rotate, and a screw sleeve moves on the screw. The screw sleeve, through a bracket, lowers a pressure plate, which applies pressure to the backfilled material, compacting it firmly onto the ground.

[0007] Preferably, the top of the hopper has a feed inlet. Backfill materials such as crushed stone and soil enter the hopper through the feed inlet, and the hopper stores the backfill materials.

[0008] Preferably, both the fixed rod and the top of the reciprocating screw are equipped with pulleys, and the two pulleys are movably connected by a belt. When the fixed rod rotates, it transmits power to the pulleys, and the two pulleys drive the reciprocating screw to rotate via the belt.

[0009] Preferably, the motor transmission structure is fixedly connected to the pulley at the top of the fixed rod. The motor drives the pulley to rotate through the transmission structure, and the pulley drives the fixed rod to rotate.

[0010] Preferably, a connecting plate is welded to the outer side of a section of the fixing rod extending into the material box. A scraper is installed on the end of the connecting plate opposite to the fixing rod, and the scraper contacts the inner wall of the material box. When the fixing rod rotates, it drives the scraper to rotate through the connecting plate. During the rotation, the scraper scrapes off the material particles adhering to the inner wall of the material box.

[0011] Preferably, a discharge pipe is embedded in the bottom of the material box, and a stirring rod is installed in a circular array on the outer side of a section of the fixed rod extending into the discharge pipe. The backfill material inside the material box is discharged from the discharge pipe. When the fixed rod rotates, it drives the fixed rod to rotate through the connecting rod. The fixed rod drives the stirring rod to rotate, and the stirring rod stirs the material passing through the discharge pipe to prevent material blockage.

[0012] Preferably, a groove is provided on the side of the hopper opposite to the screw sleeve, and a slider is installed on the side of the screw sleeve opposite to the hopper. The slider and the groove are slidably connected. The slider limits the movement of the screw sleeve. When the screw sleeve moves on the reciprocating screw, the slider slides in the groove to prevent the screw sleeve from shaking.

[0013] Preferably, support plates are welded to both the front and rear sides of the bottom of the material box, and casters are symmetrically and movably installed on opposite sides of the two support plates. The support plates can be moved on the ground via the casters, and the support plates can carry the material box on the ground.

[0014] Preferably, a handle is welded to the side of the material box away from the threaded sleeve, and the handle has a fixing hole. The handle can be used to apply a pushing or pulling force to the material box. Through the fixing hole of the handle, the handle can be fixedly connected to the drive mechanism using bolts or other tools, and the drive mechanism can drag the material box to move its position.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a mixing rod, a scraper, and a pressure plate. A motor drives a pulley at the top of the fixed rod to rotate via a transmission structure. The pulley rotates the fixed rod, which in turn rotates the mixing rod. The mixing rod mixes the backfill material inside the hopper. As the fixed rod rotates, it drives the scraper to rotate via a connecting plate. During rotation, the scraper removes material particles adhering to the inner wall of the hopper. The mixed material inside the hopper is then discharged through the outlet pipe. The rotation of the fixed rod also drives a second fixed rod to rotate via a connecting rod. The second rod drives the second mixing rod to rotate, which mixes the material passing through the discharge pipe. The discharge pipe then backfills the material to uneven areas of the open-pit coal mine spoil heap. Two pulleys drive the reciprocating screw to rotate via belts. The screw sleeve moves on the reciprocating screw, and the screw sleeve drives the pressure plate to descend via the bracket. The pressure plate applies pressure to the material backfilled to the ground, compacting the material onto the ground. This achieves the effect of scraping off material particles adhering to the inner wall of the material box and backfilling them onto the ground during the mixing process inside the material box, and compacting the material onto the ground. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0018] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention from a third angle;

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention from a fourth angle;

[0021] Figure 5 This is a cross-sectional view of the material bucket and discharge pipe of this utility model.

[0022] In the diagram: 1. Support plate; 2. Material box; 3. Fixing frame; 4. Bearing 1; 5. Stirring rod 1; 6. Fixing rod 1; 7. Belt; 8. Scraper; 9. Bearing 2; 10. Reciprocating screw; 11. Screw sleeve; 12. Bracket; 13. Slide groove; 14. Slider; 15. Pressure plate; 16. Caster; 17. Handle; 18. Motor; 19. Fixing hole; 20. Connecting plate; 21. Pulley; 22. Discharge pipe; 23. Stirring rod 2; 24. Connecting rod; 25. Fixing rod 2; 26. Feed inlet. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figures 1-5 As shown, this utility model proposes a topsoil layering, covering, and solidification device for open-pit coal mine spoil heaps, comprising a material box 2 and a screw sleeve 11. The top of the material box 2 has a feed inlet 26. A fixing frame 3 is welded to the top of the material box 2. A bearing 4 is embedded in the top of the fixing frame 3. A fixing rod 6 is fixedly installed on the inner ring of the bearing 4. A motor 18 is installed on the top of the fixing frame 3 above the fixing rod 6. A stirring rod 5 is installed in a circular array on the outer side of a section of the fixing rod 6 extending into the material box 2. A connecting plate 20 is welded to the outer side of a section of the fixing rod 6 extending into the material box 2. A scraper 8 is installed on the end of the connecting plate 20 facing away from the fixing rod 6, and the scraper 8 contacts the inner wall of the material box 2. A connecting rod 24 is welded to the bottom of the fixing rod 6. A fixing rod 25 is welded to the bottom of the connecting rod 24. A discharge pipe 22 is embedded in the bottom of the material box 2. A section of the fixed rod 25 extends into the discharge pipe 22, and a stirring rod 23 is installed in a ring array on its outer side. Two bearings 29 are symmetrically installed on the side of the material box 2. A reciprocating screw 10 is fixedly installed in the inner ring of the two bearings 29. Pulleys 21 are installed on the top of both the fixed rod 16 and the reciprocating screw 10. The two pulleys 21 are movably connected by a belt 7. The transmission structure of the motor 18 is fixedly connected to the pulley 21 on the top of the fixed rod 16. The screw sleeve 11 is engaged with the reciprocating screw 10. A bracket 12 is welded to the side of the screw sleeve 11 away from the material box 2. A pressure plate 15 is installed at the bottom of the bracket 12. Support plates 1 are welded to the front and rear sides of the bottom of the material box 2. Casters 16 are symmetrically and movably installed on the opposite side of the two support plates 1. A handle 17 is welded to the side of the material box 2 away from the screw sleeve 11. The handle 17 has a fixing hole 19.

[0029] In this embodiment, backfill materials such as crushed stone and soil are added to the material box 2 through the feed inlet 26 at the top of the material box 2. The material box 2 stores the materials. The handle 17 can be used to apply a pushing or pulling force to the material box 2. Alternatively, the handle 17 can be fixedly connected to the drive mechanism through the fixing hole 19 of the handle 17 using bolts or other tools. The drive mechanism can drag the material box 2 to move its position. The material box 2 moves on the ground via the casters 16 at the bottom. After moving into the open-pit coal mine spoil heap, the motor 18 drives the pulley 21 at the top of the fixed rod 6 to rotate through the transmission structure. The pulley 21 drives the fixed rod 6 to rotate, and the fixed rod 6 drives the stirring rod 5 to rotate. The stirring rod 5 mixes and stirs the backfill materials inside the material box 2. When the fixed rod 6 rotates, it... The connecting plate 20 drives the scraper 8 to rotate. During the rotation, the scraper 8 scrapes off the material particles attached to the inner wall of the material box 2. The mixed material inside the material box 2 is discharged from the discharge pipe 22. When the fixed rod 1 6 rotates, it drives the fixed rod 25 to rotate through the connecting rod 24. The fixed rod 25 drives the stirring rod 23 to rotate. The stirring rod 23 stirs the material passing through the discharge pipe 22. The discharge pipe 22 backfills the material to the uneven ground of the open-pit coal mine spoil heap. The two pulleys 21 are driven by the belt 7. The pulleys 21 drive the reciprocating screw 10 to rotate. The screw sleeve 11 moves on the reciprocating screw 10. The screw sleeve 11 drives the pressure plate 15 to descend through the bracket 12. The pressure plate 15 applies pressure to the material backfilled to the ground and compacts the material on the ground.

[0030] Example 2

[0031] like Figures 1-5 As shown, the present invention proposes a topsoil layering and solidification device for open-pit coal mine spoil heaps. Compared with Embodiment 1, this embodiment further includes: a chute 13 and a slider 14. The chute 13 is provided on the side of the material box 2 opposite to the screw sleeve 11, and the slider 14 is installed on the side of the screw sleeve 11 opposite to the material box 2. The slider 14 and the chute 13 are slidably connected.

[0032] In this embodiment, the screw sleeve 11 is limited by the slider 14. When the screw sleeve 11 moves, the slider 14 slides in the groove 13 to prevent the screw sleeve 11 from shaking.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An open-pit coal mine dump surface soil layering covering and solidifying device comprising a material box (2) and a screw sleeve (11), characterized in that: The top of the material box (2) is welded with a fixing frame (3), the top of the fixing frame (3) is embeddedly installed with a bearing one (4), the inner ring of the bearing one (4) is fixedly installed with a fixed rod one (6), the top of the fixed rod one (6) is installed with a motor (18), the fixed rod one (6) is inserted into the inside of the material box (2) and is externally installed with a stirring rod one (5) in an annular array, the bottom of the fixed rod one (6) is welded with a connecting rod (24), the bottom of the connecting rod (24) is welded with a fixed rod two (25), the side of the material box (2) is symmetrically installed with two bearing twos (9), the inner ring of the two bearing twos (9) is fixedly installed with a reciprocating screw rod (10), the screw sleeve (11) is meshedly connected with the reciprocating screw rod (10), the side, away from the material box (2), of the screw sleeve (11) is welded with a support (12), and the bottom of the support (12) is installed with a pressing plate (15).

2. The device for layering and covering and solidifying the surface soil of a dump of an open-pit coal mine according to claim 1, characterized in that: The top of the material box (2) is provided with an inlet (26).

3. The device for layering and covering and solidifying the surface soil of a dump of an open-pit coal mine according to claim 1, characterized in that: The top of the fixed rod one (6) and the reciprocating screw rod (10) is installed with a belt pulley (21), and the two belt pulleys (21) are movably connected through a belt (7).

4. An apparatus for layering and covering and solidifying topsoil of a coal mine dump in an open cut coal mine according to claim 3 wherein: The transmission structure of the motor (18) is fixedly connected with the belt pulley (21) at the top of the fixed rod one (6).

5. The device for layering and covering and solidifying the surface soil of a dump of an open coal mine according to claim 1, characterized in that: The outside of the fixed rod one (6) is welded with a connecting plate (20), one end of the connecting plate (20), away from the fixed rod one (6), is installed with a scraper (8), and the scraper (8) is in contact with the inner wall of the material box (2).

6. An overburden strata layering, covering and consolidating device for an open cut coal mine waste dump according to claim 1 wherein: The bottom of the material box (2) is embeddedly installed with a discharge pipe (22), and the outside of the fixed rod two (25) is installed with a stirring rod two (23) in an annular array.

7. The device for layering and covering and solidifying the surface soil of a dump of an open coal mine according to claim 1, characterized in that: The side, opposite to the screw sleeve (11), of the material box (2) is provided with a sliding groove (13), the side, opposite to the material box (2), of the screw sleeve (11) is installed with a sliding block (14), and the sliding block (14) and the sliding groove (13) are slidably connected.

8. The device for layering and covering and solidifying the surface soil of a dump of an open pit coal mine according to claim 1, characterized in that: The bottom of the material box (2) is welded with a supporting plate (1) on each of the front and rear sides, and the opposite side of each of the two supporting plates (1) is symmetrically movably installed with a trundle (16).

9. The device for layering and covering and solidifying the surface soil of a dump of an open coal mine according to claim 1, characterized in that: The side, away from the screw sleeve (11), of the material box (2) is welded with a handle rod (17), and the handle rod (17) is provided with a fixing hole (19).

Images