Double-lifting single-side arrangement system for vertical shaft construction in limited site

Abstract

The utility model discloses a double-lifting single-side arrangement system for vertical shaft construction in a limited site, which comprises a temporary derrick fixed on the ground, a first stable vehicle group is arranged on the ground on the first side of the temporary derrick, and a winch room is arranged on the ground on the second side of the temporary derrick. The first side and the second side of the temporary derrick are two opposite sides, a main hoister and an auxiliary hoister are arranged in the winch room, and a second winch group is arranged on the ground between the winch room and the temporary derrick. Steel wire ropes on the main hoister and the auxiliary hoister are respectively connected with hoisting buckets after bypassing head sheaves on the temporary derrick. Under the condition that the construction site is limited, the construction scheme that the double winches are arranged on the single side of the temporary derrick is adopted, the double winches are successfully arranged on the premise that the deflection angle and the rope outlet elevation angle of a steel wire rope meet safety regulations, the construction requirement is met, and the construction progress is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of interior vertical shaft construction, in particular to a double-lifting and single-side arrangement system for interior vertical shaft construction in a limited space. Background Art

[0002] In recent years, with the expansion of mining areas, many mines have needed to add return air shafts to address ventilation issues. Shaft construction often utilizes dual hoisting with a main and auxiliary winch. Most of the facilities and equipment within the shaft are suspended by wire ropes and hoisted using stabilizers and winches. When arranging hoisting equipment, consideration must be given to ensuring that the wire rope's deflection angle and lead-out angle meet safety regulations. Therefore, shaft construction requires a certain amount of space.

[0003] However, some ventilation shafts are located far away from the mining area and the site is small. In addition, there are restrictions due to existing buildings. It is not suitable to symmetrically arrange two systems in the limited site. If two drilling hoists are arranged on both sides, the site distance is insufficient and it cannot be implemented. If only one drilling winch is arranged, the lifting capacity is limited, the speed of gangue discharge and concrete pouring during shaft construction is slow, and the production progress cannot be guaranteed, which affects the progress of the project to a certain extent. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to provide a double-lift single-side arrangement system for vertical shaft construction in a limited site, which can ensure the progress of the project and reduce the requirement for site distance.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a double-lifting single-side arrangement system for vertical shaft construction in a limited site, including a temporary derrick fixed on the ground, a first stabilizing vehicle group is arranged on the ground on the first side of the temporary derrick, a winch room is arranged on the ground on the second side of the temporary derrick, the first side and the second side of the temporary derrick are opposite sides, a main hoist and an auxiliary hoist are provided in the winch room, a second stabilizing vehicle group is arranged on the ground between the winch room and the temporary derrick, and the steel wire ropes on the main hoist and the auxiliary hoist are respectively connected to buckets after passing around the sheave on the temporary derrick.

[0006] In the double-lifting single-sided arrangement system for the vertical shaft construction in the above-mentioned limited site, the line segment formed by sequentially connecting the center position of the first stabilizing vehicle group, the center position of the temporary derrick, the center position of the second stabilizing vehicle group and the center position of the winch room is a straight line L1, the extension direction of the straight line L1 is the length direction, and the direction perpendicular to the straight line L1 is the width direction; the first stabilizing vehicle group, the second stabilizing vehicle group and the winch room are all arranged within the width range of the temporary derrick.

[0007] In the double-lift single-sided arrangement system for vertical shaft construction in the above-mentioned limited site, the distribution width of the first stabilizing vehicle group is greater than the distribution width of the second stabilizing vehicle group; the first stabilizing vehicle group is symmetrically distributed about the straight line L1, and the second stabilizing vehicle group is symmetrically distributed about the straight line L1.

[0008] In the double-hoisting single-side arrangement system for vertical shaft construction in the above-mentioned limited space, the horizontal distance between the main hoist and the temporary derrick is smaller than the horizontal distance between the auxiliary hoist and the temporary derrick; the main hoist is arranged on one side of the straight line L1, and the auxiliary hoist is arranged on the other side of the straight line L1.

[0009] In the double-lifting single-sided arrangement system for vertical shaft construction in the above-mentioned limited site, the rope-out angle of the wire rope on the stabilizing car in the first stabilizing car group is 61.81°-66.13°; the rope-out angle of the wire rope on the stabilizing car in the second stabilizing car group is 35.94°-42.45°.

[0010] In the double-lifting and single-sided arrangement system for the vertical shaft construction in the above-mentioned limited site, the stabilizing cars in the first stabilizing car group are connected to the No. 1 hoisting car, No. 2 hoisting car, No. 1 template car, No. 2 template car and No. 1 rock grabbing locomotive through steel wire ropes; the stabilizing cars in the second stabilizing car group are connected to the No. 3 hoisting car, No. 4 hoisting car, No. 3 template car, No. 4 template car and No. 2 rock grabbing locomotive through steel wire ropes.

[0011] The double-lift single-side arrangement system for vertical shaft construction in the above-mentioned limited space is provided with a vehicle stabilizing foundation corresponding to the position of the temporary derrick support legs on the ground, and the vehicle stabilizing foundation is fixedly connected to the support legs of the temporary derrick by bolts.

[0012] In the above-mentioned limited site, a double-lifting single-side arrangement system is constructed in the vertical shaft. The thickness of the vehicle stabilizing foundation is 1.5m, the vehicle stabilizing foundation is a C30 concrete foundation, and the bolts are pre-embedded in the concrete foundation.

[0013] A double-lifting, single-sided arrangement system is used for the construction of the vertical shaft in the above-mentioned limited space. A waste rock turning platform is provided on the temporary derrick. The height of the waste rock turning platform is 11.6m. A waste rock chute is provided on the temporary derrick. A waste rock dump corresponding to the outlet end of the waste rock chute is provided on the ground. The width of the waste rock dump is equal to the distance between two adjacent legs of the temporary derrick. The waste rock dump is provided on the ground between the second stabilizing vehicle group and the temporary derrick.

[0014] A double-lift single-sided arrangement system is used for the construction of the vertical shaft in the above-mentioned limited site. A stone yard and an air compressor room are also arranged on the ground away from the temporary derrick; a mixing station is set on the ground adjacent to the first stabilizing vehicle group set up on the temporary derrick.

[0015] The technical solution of the utility model has achieved the following beneficial technical effects:

[0016] With the construction site limited, the double winch was successfully arranged on one side of the temporary derrick by adopting a construction plan. On the premise that the deflection angle and the rope elevation angle of the wire rope met the safety regulations, the double winch was successfully arranged to meet the construction needs and ensure the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the plan layout of the double-lift single-side arrangement system for vertical shaft construction in a limited space of the utility model;

[0018] Figure 2 Schematic diagram of the temporary derrick and the second stabilizing vehicle group of the present invention.

[0019] The reference numerals in the figure are: 1-vertical shaft; 2-temporary derrick; 3-first stabilizing vehicle group; 4-second stabilizing vehicle group; 5-winch room; 6-main hoist; 7-auxiliary hoist; 8-material yard; 9-mixing station; 10-air compressor room; 11-waste dump; 12-stabilizing vehicle foundation; 13-waste chute; 14-waste turning platform. DETAILED DESCRIPTION

[0020] In this embodiment, the double-lift single-side arrangement system for vertical shaft construction in a limited space is as follows: Figure 1 As shown, it includes a temporary derrick 2 fixed on the ground. The temporary derrick 2 uses a IVg type temporary derrick for drilling a well. A first stabilizing vehicle group 3 is arranged on the ground on the first side of the temporary derrick 2, and a winch room 5 is arranged on the ground on the second side of the temporary derrick 2. The first side and the second side of the temporary derrick 2 are opposite sides. A main hoist 6 and an auxiliary hoist 7 are arranged in the winch room 5. A second stabilizing vehicle group 4 is arranged on the ground between the winch room 5 and the temporary derrick 2. The steel wire ropes on the main hoist 6 and the auxiliary hoist 7 are connected to buckets after passing through the sheave on the temporary derrick 2. The main hoist uses a JKZ-2.8 / 15.5 type hoisting winch equipped with a 5m 3 Bucket, auxiliary hoist uses JK-3.0 / 20 hoist winch, equipped with 4m 3 A bucket is used to lift personnel, materials and gangue and a seat-hook type automatic gangue turning platform. A material yard 8 and an air compressor room 10 are also arranged on the ground away from the temporary derrick 2; a mixing station 9 is set on the ground adjacent to the first stabilizing vehicle group 3 of the temporary derrick 2. The mixing station 9 uses two JS-750 type forced mixers to mix materials.

[0021] like Figure 1As shown, the line segment formed by sequentially connecting the center position of the first stabilizing vehicle group 3, the center position of the temporary derrick 2, the center position of the second stabilizing vehicle group 4 and the center position of the winch house 5 is a straight line L1, the extension direction of the straight line L1 is the length direction, and the direction perpendicular to the straight line L1 is the width direction; the first stabilizing vehicle group 3, the second stabilizing vehicle group 4 and the winch house 5 are all arranged within the width range of the temporary derrick 2; the distribution width of the first stabilizing vehicle group 3 is greater than the distribution width of the second stabilizing vehicle group 4; the first stabilizing vehicle group 3 is symmetrically distributed about the straight line L1, and the second The stabilizing car group 4 is symmetrically distributed about the straight line L1. The stabilizing cars in the first stabilizing car group 3 are connected to the No. 1 hoisting car, No. 2 hoisting car, No. 1 template car, No. 2 template car and No. 1 rock grabbing locomotive through steel wire ropes; the stabilizing cars in the second stabilizing car group 4 are connected to the No. 3 hoisting car, No. 4 hoisting car, No. 3 template car, No. 4 template car and No. 2 rock grabbing locomotive through steel wire ropes. The rope-out angle of the steel wire rope on the stabilizing car in the first stabilizing car group 3 is 61.81°-66.13°; the rope-out angle of the steel wire rope on the stabilizing car in the second stabilizing car group 4 is 35.94°-42.45°.

[0022] The horizontal distance between the main hoist 6 and the temporary derrick 2 is smaller than the horizontal distance between the auxiliary hoist 7 and the temporary derrick 2; the main hoist 6 is arranged on one side of the straight line L1, and the auxiliary hoist 7 is arranged on the other side of the straight line L1.

[0023] A stabilizing foundation 12 corresponding to the position of the support legs of the temporary derrick 2 is provided on the ground. The stabilizing foundation 12 is fixedly connected to the support legs of the temporary derrick 2 by bolts. The thickness of the stabilizing foundation 12 is 1.5m. The stabilizing foundation 12 is cast with C30 concrete. The bolts are embedded in the concrete foundation. By raising the stabilizing foundation 12 and reinforcing the support legs with embedded bolts, safety requirements are met.

[0024] like Figure 2 As shown, the temporary derrick 2 is provided with a waste rock turning platform 14, the height of the waste rock turning platform 14 is 11.6m, the temporary derrick 2 is provided with a waste rock chute, and a waste rock dump 11 corresponding to the outlet end of the waste rock chute is provided on the ground, and the width of the waste rock dump 11 is equal to the distance between two adjacent legs of the temporary derrick 2; the waste rock dump 11 is set on the ground between the second stabilizing vehicle group 4 and the temporary derrick 2.

[0025] In this embodiment, the stability verification of the temporary derrick is as follows:

[0026] The double hoist winches are arranged on one side of the derrick. The first stabilizer group 3 has a large rope angle due to site restrictions. The main calculation is the derrick anti-overturning stability calculation. According to the derrick stability calculation formula:

[0027]

[0028] Where M W is the stabilizing torque, unit is kN·m; M Q is the overturning moment, unit is kN·m; K is the stability coefficient, which is 1.5.

[0029] Stabilizing torque:

[0030] M w =∑V·l1+Q·l2+2G(l3+l4) (2)

[0031] Overturning moment:

[0032] M Q =∑H·h1+∑W·h2 (3)

[0033] Wherein, ΣV is the resultant force of the vertical tension of the wire rope, in kN; Q is the weight of the derrick, gangue turning platform, etc., in kg; G is the weight of a foundation, in kg; l1, l2, l3, l4 are the distances from ΣV, Q, G to the overturning center, in m; ΣH is the resultant force of the horizontal tension of the wire rope, in kN; ΣW is the resultant force of the wind load, in kN; h1 and h2 are the distances from ΣH and ΣW to the overturning center, in m.

[0034] After calculation, the stabilizing moment M W =3478.55kN·m, overturning moment M Q =1339.6kN·m.

[0035] The stability coefficient K=3478.55 / 1339.6=2.60>1.5, so the derrick has good stability.

[0036] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the claims of this patent application.

Claims

1. Double lifting and single side arrangement system for vertical shaft construction in limited space, characterized by: The invention comprises a temporary derrick (2) fixed on the ground, a first stabilizing vehicle group (3) being arranged on the ground on a first side of the temporary derrick (2), a winch room (5) being arranged on the ground on a second side of the temporary derrick (2), the first side and the second side of the temporary derrick (2) being opposite to each other, a main hoist (6) and an auxiliary hoist (7) being arranged in the winch room (5), a second stabilizing vehicle group (4) being arranged on the ground between the winch room (5) and the temporary derrick (2), and the steel wire ropes on the main hoist (6) and the auxiliary hoist (7) being connected to buckets after passing through the sheave on the temporary derrick (2).

2. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 1 is characterized in that: A line segment formed by sequentially connecting the center position of the first stabilizing vehicle group (3), the center position of the temporary derrick (2), the center position of the second stabilizing vehicle group (4) and the center position of the winch house (5) is a straight line L1, the extension direction of the straight line L1 is the length direction, and the direction perpendicular to the straight line L1 is the width direction; the first stabilizing vehicle group (3), the second stabilizing vehicle group (4) and the winch house (5) are all arranged within the width range of the temporary derrick (2).

3. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 2 is characterized in that: The distribution width of the first stable vehicle group (3) is greater than the distribution width of the second stable vehicle group (4); the first stable vehicle group (3) is symmetrically distributed about the straight line L1, and the second stable vehicle group (4) is symmetrically distributed about the straight line L1.

4. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 2 is characterized in that: The horizontal distance between the main hoist (6) and the temporary derrick (2) is smaller than the horizontal distance between the auxiliary hoist (7) and the temporary derrick (2); the main hoist (6) is arranged on one side of the straight line L1, and the auxiliary hoist (7) is arranged on the other side of the straight line L1.

5. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to any one of claims 1-4, characterized in that: The wire rope delivery angle of the stabilizing vehicle in the first stabilizing vehicle group (3) is 61.81°-66.13°; the wire rope delivery angle of the stabilizing vehicle in the second stabilizing vehicle group (4) is 35.94°-42.45°.

6. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to any one of claims 1-4, characterized in that: The stabilizing cars in the first stabilizing car group (3) are respectively connected to the No. 1 hoisting car, the No. 2 hoisting car, the No. 1 template car, the No. 2 template car and the No. 1 rock grabbing locomotive through steel wire ropes; the stabilizing cars in the second stabilizing car group (4) are respectively connected to the No. 3 hoisting car, the No. 4 hoisting car, the No. 3 template car, the No. 4 template car and the No. 2 rock grabbing locomotive through steel wire ropes.

7. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 1 is characterized in that: A vehicle stabilizing foundation (12) corresponding to the position of the support legs of the temporary derrick (2) is provided on the ground, and the vehicle stabilizing foundation (12) is fixedly connected to the support legs of the temporary derrick (2) via bolts.

8. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 7 is characterized in that: The thickness of the vehicle stabilizing foundation (12) is 1.5 m, the vehicle stabilizing foundation (12) is a C30 concrete foundation, and the bolts are pre-embedded in the concrete foundation.

9. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 1 is characterized in that: The temporary derrick (2) is provided with a waste rock turning platform (14), the height of which is 11.6 m. The temporary derrick (2) is provided with a waste rock chute, and a waste rock dump (11) corresponding to the outlet end of the waste rock chute is provided on the ground. The width of the waste rock dump (11) is equal to the distance between two adjacent legs of the temporary derrick (2); the waste rock dump (11) is provided on the ground between the second stabilizing vehicle group (4) and the temporary derrick (2).

10. The double-lift single-side arrangement system for vertical shaft construction in a limited space according to claim 1 is characterized in that: A material field (8) and an air compressor room (10) are also arranged on the ground at a position away from the temporary derrick (2); and a mixing station (9) is arranged on the ground adjacent to the first stabilizing vehicle group (3) of the temporary derrick (2).

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