Anti-impact device of mine draw shaft wall

Abstract

The utility model discloses an anti-impact device of a mine draw shaft wall. The anti-impact device comprises a steel lining rail assembly and a walling crib. The walling crib is provided with a steel belt with an annular section, and the walling crib is connected with the steel fiber reinforced concrete layer through a connecting piece I; rooting hooks are welded to the outer walls of the arc-shaped steel plates and fixed in the steel fiber reinforced concrete layer. The steel fiber concrete layer is poured on the wall of the mine draw shaft; the steel lining rail assembly comprises a plurality of steel lining rails, and the steel lining rails are perpendicular to the walling crib and fixed to the inner wall of the walling crib. The multiple steel lining rails are evenly arranged in the circumferential direction. The steel lining rail is connected with the steel plate through a connecting piece II. The ore pass is simple in structure, convenient to operate and capable of effectively preventing the ore pass from collapsing due to the fact that the wall of the ore pass is prone to being smashed and the surrounding rock of the wall of the ore pass is smashed, improving the impact and abrasion resistance of the ore pass and prolonging the service life of the ore pass.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine construction engineering, and in particular relates to an anti-impact device for a mine chute wall. Background Art

[0002] In mining construction projects, ore chute discharge has the characteristics of saving transportation equipment, no need for lifting, convenient production management, large production capacity, low power and material consumption, etc., so it is widely used in mines. Ore chute belongs to the development project, which is an important form of transportation in metal mine production and a throat for storing and transporting ore. Ore chute has a long service life, is often impacted by ore during use, and has a harsh operating environment. Ore chute is also a mining project that often has problems. During the movement or movement of ore and waste rock in the chute, impact and friction are generated on the wall of the shaft, causing the cross-sectional size of the chute to continue to increase. When the cross-section expands to a certain extent, the surrounding rock of the shaft wall will collapse locally, and further development will cause large-scale collapse, which will affect the stability of surrounding projects. Therefore, a new type of impact resistance device for the wall of the mine chute is needed to increase the service life. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides an anti-impact device for the wall of a mine chute which has a simple structure and can prevent the surrounding rock of the wall from collapsing and increase the service life of the mine chute.

[0004] The technical scheme adopted by the utility model is: an impact-resistant device for the wall of a mine chute, comprising a steel liner rail assembly and a shaft ring; the shaft ring installation cross-section is a ring-shaped steel belt, and the shaft ring is connected to the steel fiber concrete layer through a connecting piece I; rooting hooks are welded on the outer wall of the arc-shaped steel plate, and the rooting hooks are fixed in the steel fiber concrete layer; the steel fiber concrete layer is cast on the wall of the mine chute; the steel liner rail assembly comprises a plurality of steel liner rails, and the steel liner rails are fixed on the inner wall of the shaft ring perpendicular to the shaft ring; the plurality of steel liner rails are evenly arranged along the circumferential direction; the steel liner rails are connected to the steel plate through a connecting piece II.

[0005] Furthermore, the connecting member I is a bolt, a screw or an anchor rod, and the connecting member II is a bolt.

[0006] Furthermore, multiple steel lining rails are arranged in mirror symmetry; the symmetry plane is the plane where the well circle diameter and the center line are located; the lengths of multiple steel lining rails on one side of the symmetry plane are unequal, and the length of the steel lining rails increases successively from one end of the diameter of the symmetry plane to the other end.

[0007] Furthermore, the well ring includes four arc-shaped steel belts, each having a curvature of π / 2; the four arc-shaped steel belts are coaxially connected to form a ring-shaped well ring; an arc-shaped steel plate is installed on the arc-shaped steel belt, each having a curvature of π / 2, and a rooting hook is welded on the outer wall of the arc-shaped steel plate; when the four arc-shaped steel belts are connected to form the well ring, the arc-shaped steel plates are assembled into a ring-shaped steel plate.

[0008] Furthermore, the steel liner rail, steel plate and well ring are made of wear-resistant and corrosion-resistant alloy steel.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model has a simple structure and is easy to operate. The annular steel plate is used to be installed on the wall of a mine chute, which can effectively prevent the impact and friction force on the wall of the chute generated by the movement or displacement of ore and waste rock in the chute, and can prevent the collapse of the surrounding rock of the chute, thereby increasing the service life of the mine chute. It is suitable for the installation and repair of the walls of mine chutes of various specifications and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a top view of the impact resistant device for the wall of a mine chute according to the present invention.

[0012] Figure 2 A side view of the impact resistance device on the wall of a mine chute.

[0013] Figure 3 This is the structural diagram of the connection between the steel lining rail, shaft ring and steel fiber concrete layer.

[0014] In the figure: 1. steel liner, 2. well ring, 3. bolts, 4. rooting hooks, 5. arc steel plate, 6. bolts, 7. steel fiber concrete layer. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1-3 As shown, the utility model includes a steel liner rail assembly and a well ring 2; the well ring 2 includes four arcuate steel belts, the arcuate steel belts have an arcuate of π / 2; the four arcuate steel belts are coaxially connected to form an annular well ring, and adjacent arcuate steel belts are connected by bolts 6. An arcuate steel plate 5 is installed on the arcuate steel belt, the arcuate steel plate 5 has an arcuate of π / 2, and a rooting hook 4 is welded on the outer wall of the arcuate steel plate 5; the rooting hook 4 is used to install the arcuate steel plate 5 on the steel fiber concrete layer 7. When the four arcuate steel belts are connected to form the well ring 2, the arcuate steel plate 5 is assembled into an annular steel plate.

[0017] The shaft ring 2 is installed on the steel fiber concrete layer 7 by bolts (or screws, anchor rods), and the steel fiber concrete layer is cast on the wall of the mine shaft. The steel liner rail assembly includes a plurality of steel liner rails 1, which are connected to the shaft ring 2 by bolts 3 and fixed to the steel plate by bolts. The plurality of steel liner rails 1 are evenly arranged along the circumferential direction, and the steel liner rails are connected to the steel plate by bolts.

[0018] Multiple steel lining rails 1 are arranged in mirror symmetry; the symmetry plane is the plane where the diameter and center line of the well ring 2 are located; the lengths of multiple steel lining rails 1 on one side of the symmetry plane are not equal to each other, and the lengths of the steel lining rails 1 increase successively from one end of the diameter of the symmetry plane to the other end. The steel lining rails 1, steel plates and well ring 2 are made of wear-resistant and corrosion-resistant alloy steel.

[0019] The construction method of the utility model is as follows:

[0020] (1) Check the condition of mine chutes, prepare necessary materials and tools, and conduct safety assessments.

[0021] (2) Determine the basic shape and size of mine chutes.

[0022] (3) Designing the shape, size and material of steel lining rails and manufacturing them, transporting them by hoisting, and using them at specific locations in mine chutes to improve material flow or protect the shaft wall.

[0023] (4) Positioning work: Use measuring tools to determine the exact position of the steel liner 1 in the mine chute; Install the support structure: Install the positioning plate support structure in the mine chute to support and fix the steel liner 1; The rooting hook 4 acts on the arc-shaped steel plate 5 through welding to fix the entire device in the mine chute.

[0024] (5) Installation device: First, the steel liner 1 is installed in steps through the positioning plate, and the steel liner 1 is fixed to the well ring 2 by bolts 3. The well ring 2 is divided into four arc-shaped steel belts of a quarter circle, and the arc-shaped steel belts are installed and fixed by bolts 6, so that the whole device becomes a whole. Then, the arc-shaped steel plate 5 is installed on the well ring 2. The arc-shaped steel plate 5 can improve the impact resistance of the mine chute steel liner. Then, the arc-shaped steel plate 5 is connected and fixed to the steel liner 1 by bolts 3, and finally, the steel fiber concrete layer 7 is poured on the outside of the arc-shaped steel plate 5, so that the rooting hook 4 and the steel fiber concrete layer 7 form a whole, thereby completing the installation of the whole device.

[0025] (6) Final inspection and adjustment: Check the installed rooting hooks 4 and steel lining rails 1 to ensure that they are accurately positioned and firmly fixed, and make adjustments as needed.

Claims

1. An anti-impact device for the wall of a mine chute, Features: It includes a steel liner rail assembly and a shaft ring; the shaft ring installation cross-section is a ring-shaped steel belt, and the shaft ring is connected to the steel fiber concrete layer through a connector I; rooting hooks are welded on the outer wall of the arc-shaped steel plate, and the rooting hooks are fixed in the steel fiber concrete layer; the steel fiber concrete layer is cast on the wall of the mine chute; the steel liner rail assembly includes a plurality of steel liner rails, and the steel liner rails are fixed on the inner wall of the shaft ring perpendicular to the shaft ring; the plurality of steel liner rails are evenly arranged along the circumferential direction; the steel liner rails are connected to the steel plate through a connector II.

2. The anti-impact device for the mine shaft wall according to claim 1, Features: The connecting member I is a bolt, a screw or an anchor rod, and the connecting member II is a bolt.

3. The anti-impact device for the mine shaft wall according to claim 1, Features: Multiple steel lining rails are arranged in mirror symmetry; the symmetry plane is the plane where the well circle diameter and the center line are located; the lengths of multiple steel lining rails on one side of the symmetry plane are unequal, and the lengths of the steel lining rails increase successively from one end of the diameter of the symmetry plane to the other end.

4. The anti-impact device for the mine shaft wall according to claim 1, Features: The well ring includes four arc-shaped steel belts, each with a curvature of π / 2; the four arc-shaped steel belts are coaxially connected to form a circular well ring; arc-shaped steel plates are installed on the arc-shaped steel belts, each with a curvature of π / 2, and rooting hooks are welded on the outer wall of the arc-shaped steel plate; when the four arc-shaped steel belts are connected to form the well ring, the arc-shaped steel plates are assembled into a circular steel plate.

5. The anti-impact device for the mine shaft wall according to claim 1, It is characterized in that The steel liner rail, steel plate and well ring are made of wear-resistant and corrosion-resistant alloy steel.

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