A shaft construction hoisting system and method of implementing the same

Abstract

This invention provides a vertical shaft construction hoisting system and its implementation method, relating to the field of vertical shaft construction technology. It includes a derrick device, a construction elevator, a hoisting platform, and a cage device fixedly installed on the ground surface. The derrick device includes a first pulley group rotatably connected to it. A mining hoist is installed on the ground surface where the derrick device is installed. The mining hoist has a first steel strand, which crosses the first pulley group and is fixedly connected to the hoisting platform at its other end. In this invention, the hoisting platform's lifting and lowering via the ground-based derrick system facilitates drilling and blasting excavation as well as manual slag removal. The construction elevator facilitates personnel movement between the ground surface and the cage. Construction materials can be quickly transported via the construction elevator and derrick device, improving construction efficiency. Pre-drilled holes in the lower layer of the hoisting platform facilitate plugging and slag removal. The hoisting platform, cage, and construction elevator are all designed with sufficient safety measures to prevent side slippage, falls, or falling objects from height, thus improving construction safety.

Description

Technical Field

[0001] This invention relates to the field of shaft construction technology, specifically to a shaft construction hoisting system and its implementation method. Background Technology

[0002] As mining and tunneling projects gradually move towards greater depths, shaft construction technology has become a focal point in the industry. Currently, the reverse shaft drilling method has become the mainstream method for shaft construction. Its main construction process can be summarized as "two in, two out": pilot hole drilling, reverse shaft enlargement, blasting to form the shaft, and lining construction. Due to its advantages such as high mechanization, fewer construction equipment, high muck removal efficiency, and convenient muck transportation, this method is commonly used for deep and large shaft construction. However, this method also has some disadvantages. First, the reverse shaft method faces the same problems as traditional direct shaft construction, such as inconvenient material transportation and personnel access. Additionally, the reverse shaft method suffers from the problem of muck chute blockage, which is difficult to clear. Furthermore, for deep and large shafts, the risk of falling rock fragments or initial concrete supports causing injury should also be considered. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a vertical shaft construction hoisting system and its implementation method, which solves the problems of inconvenient material transportation and personnel in vertical shaft construction methods, easy blockage of slag chutes, difficulty in clearing blockages, and injury caused by falling rock blocks or initial support concrete from the shaft wall.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vertical shaft construction hoisting system, comprising a derrick device, a construction elevator, a hoisting platform device, and a cage device fixedly installed on the ground surface. The derrick device includes a first pulley group rotatably connected to it. A mining hoist is installed on the ground surface where the derrick device is installed. The mining hoist is equipped with a first steel strand, which crosses the first pulley group and is fixedly connected to the hoisting platform device at its other end.

[0007] The construction elevator comprises a load-bearing steel frame installed on the ground, a hoisting winch, a second steel strand, a second pulley block, and a cage. The hoisting winch is installed on the ground surface and is equipped with a second steel strand. The upper part of the load-bearing steel frame is rotatably connected to the second pulley block, and the second steel strand crosses the second pulley block and is fixed to the cage at the other end.

[0008] The hanging plate device includes an upper plate, a lower plate, and a hanging plate support column fixed between the upper plate and the lower plate. The lower plate is provided with a circular reserved hole.

[0009] The cage device includes a hoisting winch and a cage. The cage includes a retaining shell, a steel fence, and a working platform. The steel fence is fixedly connected between the retaining shell and the working platform. The hoisting winch includes a third steel strand, the other end of which is fixedly connected to the retaining shell.

[0010] Preferably, ground anchors are provided on the ground surface where the derrick device is installed to pull and fix the derrick device.

[0011] Preferably, the load-bearing steel frame is welded from I-beams.

[0012] Preferably, the cage has a cage door on its side wall and a closed top.

[0013] Preferably, the upper plate and the lower plate are both welded from steel plates and structural steel, and the upper plate and the lower plate are distributed vertically.

[0014] Preferably, the upper plate is provided with a central reserved hole and a construction elevator reserved hole.

[0015] Preferably, the inner wall of the soil shell is fixedly connected to a placement plate with a central pick-up and drop hole, and the placement plate is equipped with a communication telephone and an alarm button.

[0016] Preferably, the retaining shell is a frustum-shaped shell with the opening facing downwards.

[0017] An implementation of a vertical shaft construction hoisting system includes the following: According to the above-described vertical shaft construction hoisting system, under the action of a mining hoist, the hoisting device moves up and down by winding and unwinding the first steel strand. Construction personnel can descend to the construction face or chute through the pre-reserved circular hole in the lower plate to perform manual slag removal operations. In addition, under the action of the hoisting winch, the second steel strand is wound and unwinded, thereby driving the cage to move up and down, and transporting personnel and materials inside the cage.

[0018] (III) Beneficial Effects

[0019] This invention provides a vertical shaft construction hoisting system and its implementation method. It has the following beneficial effects:

[0020] In this invention, the suspended platform is raised and lowered by the surface derrick system to facilitate drilling and blasting excavation as well as manual slag removal; the construction elevator facilitates personnel movement between the surface and the cage; the construction elevator and derrick device enable rapid transportation of construction materials, which helps improve construction efficiency; the pre-reserved holes in the lower layer of the suspended platform facilitate hole plugging and slag removal; the suspended platform, cage, and construction elevator are all designed with sufficient safety measures to prevent side slippage, falls, or falling objects from heights, thereby improving construction safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the lifting system in this invention;

[0022] Figure 2 This is a schematic diagram of the structure of the lifting system at the ground surface in this invention;

[0023] Figure 3 This is a schematic diagram of the construction elevator in this invention;

[0024] Figure 4 This is a schematic diagram of the hanging platform structure in this invention;

[0025] Figure 5 This is a schematic diagram of the construction elevator transporting the equipment to the hoisting platform in this invention;

[0026] Figure 6 This is a schematic diagram of the cage structure in this invention;

[0027] Figure 7 This is a longitudinal sectional view of the hoisting cage in this invention.

[0028] The components include: 1. Derrick assembly; 2. Construction elevator; 3. Hoisting platform assembly; 4. Cage assembly; 11. Derrick; 12. Steel strand; 13. Mine hoist; 14. First pulley block; 15. Ground anchor; 21. Load-bearing steel frame; 22. Hoisting winch; 23. Steel strand; 24. Second pulley block; 25. Cage; 26. Cage door; 31. Upper plate; 311. Upper plate lifting ring; 312. Upper plate central rectangular reserved hole; 313. Upper plate elevator reserved hole; 32. Hoisting platform support column; 33. Lower plate; 331. Lower plate circular reserved hole; 41. Hoisting winch; 42. Cage lock hole; 43. Retaining shell; 44. Steel fence; 45. Working platform; 46. Communication telephone; 47. Alarm bell button. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] like Figure 1-7As shown, this embodiment of the invention provides a vertical shaft construction hoisting system and its implementation method, including a derrick device 1, a construction elevator 2, a hoisting platform device 3, and a cage device 4 fixedly installed on the ground. The derrick device 1 is used to bear the total weight of the construction elevator 2, the hoisting platform device 3, the cage device 4, and all personnel and materials on them. The derrick device 1 includes a first pulley group 14 rotatably connected to it. A JK-2×1.5 mining hoist 13 is installed on the ground where the derrick device 1 is installed. The mining hoist 13 is equipped with a first steel strand 12, which crosses the first pulley group 14 and is fixedly connected to the hoisting platform device 3 at the other end. The hoisting platform device 3 moves up and down by winding and unwinding the first steel strand 12 through the mining hoist 13.

[0032] The construction elevator 2 consists of a ground-mounted load-bearing steel frame 21, a hoisting winch 22, a second steel strand 23, a second pulley block 24, and a cage 25. The load-bearing steel frame 21 is welded from I-beams. The hoisting winch 22 consists of three units, model JZ-10 / 600. The hoisting winch 22 is installed on the ground and is equipped with the second steel strand 23. The upper part of the load-bearing steel frame 21 is rotatably connected to the second pulley block 24. The second steel strand 23 crosses the second pulley block 24 and is fixed to the cage 25 at the other end. The transportation of personnel and materials is mainly achieved through the cage 25. The hoisting winch 22 is used to raise and lower the second steel strand 23, thereby driving the cage 25 to move up and down. The side wall of the cage 25 is equipped with a cage door 26, and the top is closed to ensure the safety of personnel and materials during transportation.

[0033] The hoisting platform device 3 includes an upper platform 31, a lower platform 33, and a hoisting platform support column 32 fixed between the upper platform 31 and the lower platform 33. Construction workers are positioned on the lower platform during construction, while falling rocks and other debris are blocked by the upper platform, effectively preventing the danger of falling objects from heights. The upper platform 31 has a central reserved hole 312 and a construction elevator reserved hole 313, while the lower platform 33 has a lower platform circular reserved hole 331. These holes facilitate the direct hoisting of concrete (materials that cannot be transported by the construction elevator) to the hoisting platform or working face via a winch. Additionally, the reserved holes facilitate drilling operations using a rock drill. Construction workers can also descend to the working face or slag chute through the lower platform circular reserved hole 331 for manual slag removal. Three equidistant upper platform lifting rings 311 are fixedly connected to the upper side of the upper platform 31. The steel strand 12, at its end furthest from the mine hoist 13, is connected to the hoisting platform device 3 by connecting to the corresponding upper platform lifting rings 311.

[0034] The hoisting cage device 4 includes a hoisting winch 41 and a hoisting cage. The hoisting cage includes a retaining shell 43, a steel fence 44, and a working platform 45. The retaining shell 43 is a frustum-shaped shell with its opening facing downwards, and a hoisting cage lock hole 42 is fixedly connected to the top. The retaining shell is a closed frustum shape from bottom to top. This is to reduce the impact and disturbance to the side wall of the chute when the hoisting cage rises, thereby reducing the risk of side wall collapse. Secondly, it is to prevent falling rocks and soil from the side wall from sliding down the side to lower the hoisting cage, ensuring the safety of construction personnel. The steel fence 44 is fixed. Connecting the earth shell 43 and the working platform 45, the hoisting winch 41 includes a third steel strand, the other end of which is fixedly connected to the cage lock hole 42 of the earth shell 43. The aforementioned steel fence 44 is connected to the retaining shell 43 to provide lateral stiffness and ensure that construction personnel are not subjected to lateral compression. The working platform 45 adopts a partitioned design, with a cavity area and a platform area. The platform area is used for construction personnel to stand or squat and adopt a reasonable posture for construction. The cavity area facilitates the contact between construction personnel and the working surface for tool cleaning or burying explosives.

[0035] Ground anchors 15 are installed on the ground surface where the derrick device 1 is installed, which are used to pull and fix the derrick device 1 to prevent uneven force on the derrick device 1 and tilting.

[0036] Both the upper plate 31 and the lower plate 33 are welded from steel plates and structural steel, and are distributed vertically.

[0037] The inner wall of the earthen shell 43 is fixedly connected to a placement plate with a central pick-up and drop hole. The placement plate is equipped with a communication telephone 46 and an alarm button 47 to ensure construction safety and rescue.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical shaft construction hoisting system, characterized in that: The equipment includes a derrick device (1), a construction elevator (2), a hoisting platform device (3), and a cage device (4) that are fixedly installed on the ground. The derrick device (1) includes a first pulley block (14) that is rotatably connected. A mining hoist (13) is installed on the ground where the derrick device (1) is installed. A first steel strand (12) is installed on the mining hoist (13), and the first steel strand (12) crosses the first pulley block (14) and is fixedly connected to the hoisting platform device (3) at the other end. The construction elevator (2) consists of a load-bearing steel frame (21) installed on the ground, a first hoisting winch (22), a second steel strand (23), a second pulley block (24), and a cage (25). The first hoisting winch (22) is installed on the ground and is equipped with a second steel strand (23). The upper part of the load-bearing steel frame (21) is rotatably connected to the second pulley block (24). The second steel strand (23) crosses the second pulley block (24) and is fixed to the cage (25) at the other end. The construction elevator (2) facilitates personnel to travel between the ground and the cage. The hoisting device (3) includes an upper plate (31), a lower plate (33), and a hoisting support column (32) fixed between the upper plate (31) and the lower plate (33). The upper plate (31) is provided with a central reserved hole (312) and a construction elevator reserved hole (313). The lower plate (33) is provided with a lower plate circular reserved hole (331). Construction personnel can descend to the construction surface or slag chute through the lower plate circular reserved hole (331) to carry out manual slag removal operations. The cage device (4) includes a second lifting winch (41) and a cage. The second lifting winch (41) is installed on the upper surface of the lower plate (33). The cage includes a retaining shell (43), a steel fence (44), and a working platform (45). The steel fence (44) is fixedly connected between the retaining shell (43) and the working platform (45). The second lifting winch (41) includes a third steel strand. The other end of the third steel strand is fixedly connected to the retaining shell (43). The retaining shell (43) is a frustum-shaped shell with an opening facing downwards.

2. The vertical shaft construction hoisting system according to claim 1, characterized in that: Ground anchors (15) are installed on the ground surface where the derrick device (1) is installed, for pulling and fixing the derrick device (1).

3. The vertical shaft construction hoisting system and its implementation method according to claim 2, characterized in that: The load-bearing steel frame (21) is welded from I-beams.

4. The vertical shaft construction hoisting system according to claim 3, characterized in that: The cage (25) is provided with cage doors (26) on its side walls and is closed at the top.

5. A vertical shaft construction hoisting system according to claim 4, characterized in that: The upper plate (31) and the lower plate (33) are both welded from steel plates and structural steel, and the upper plate (31) and the lower plate (33) are distributed vertically.

6. A vertical shaft construction hoisting system according to claim 5, characterized in that: The inner wall of the soil shell (43) is fixedly connected to a placement plate with a central pick-up and drop hole, and the placement plate is equipped with a communication telephone (46) and an alarm button (47).

7. An implementation method for a vertical shaft construction hoisting system, characterized in that: The system includes a vertical shaft construction hoisting system according to claim 6. Under the action of the mining hoist (13), the hoisting device (3) moves up and down by winding and unwinding the first steel strand (12). Construction personnel can descend to the construction face or chute through the circular reserved hole (331) of the lower plate to carry out manual slag removal operations. In addition, the action of the first hoisting winch (22) winds and unwinds the second steel strand (23), thereby driving the cage (25) to move up and down, and transporting personnel and materials in the cage (25).

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