Sliding support structure for mining in gently inclined medium-thick ore deposits and use method thereof

Abstract

The present invention provides a sliding support structure for mining in a gently inclined medium-thick ore deposit and a method for using the same. A plurality of arc-shaped steel guard plates form an annular steel shield, and a track is also provided. Two sets of sliding brackets are provided on the track. The lower part of the sliding bracket is slidably connected to the track, and the outer ring of the sliding bracket is slidably connected to the inner wall of the steel shield. The two sets of sliding brackets are connected by a plurality of hydraulic cylinders. The two sets of sliding brackets, the steel shield and the track form a sliding support structure. The entire steel shield can slide on the track through the two sets of sliding brackets, so that the entire steel shield can be moved conveniently, and can play a temporary support role at the position where the mine needs to be constructed. The structure is simple and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of mine support, and in particular to a sliding support structure for mining in a gently inclined medium-thick ore deposit and a use method thereof. Background Art

[0002] Slightly inclined medium-thick ore bodies are a common form of ore bodies in my country. This type of ore body accounts for more than 70% of the total reserves of chemical mines, about 35% of gypsum deposits in building materials mines, and about 18% of iron ore deposits in metallurgical mines. For this type of ore deposit, underground mining is generally a weak link. The main reason for the gently inclined medium-thick ore body is that it is restricted by the inclination and thickness of the ore body.

[0003] Phosphate rock is a general term for economically usable phosphate minerals, and is an important chemical mineral raw material. It can be used to make phosphate fertilizers, and can also be used to make yellow phosphorus, phosphoric acid, phosphides and other phosphates for use in medicine, food, matches, dyes, sugar, ceramics, national defense and other industrial sectors.

[0004] When mining gently inclined medium-thick phosphate ore bodies through machinery, support structures are used to support the mine caves to prevent mine cave collapse. However, existing support structures for phosphate mining are mostly supported by scaffolding splicing. During the construction of the mine cave support structure, the mine cave location in the soft rock layer needs to be supported in sections to prevent collapse of the soft rock layer. When construction workers carry out temporary construction under the mine cave in the soft rock layer, they need to build temporary scaffolding support structures. After the construction is completed, the temporary scaffolding support structures need to be dismantled and rebuilt, resulting in reduced construction efficiency and a large increase in labor. Summary of the invention

[0005] The main purpose of the present invention is to provide a sliding support structure for mining in gently inclined medium-thick ore deposits and a method of using the same, so as to solve the problem that when construction workers carry out temporary construction under a mine cave in a soft rock layer, they need to build a temporary scaffolding support structure, and after the construction is completed, they need to dismantle the temporary scaffolding support structure, which reduces the construction efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sliding support structure for mining in gently inclined medium and thick ore deposits, a plurality of arc-shaped steel guard plates form an annular steel guard cover, and a track is also provided. Two groups of sliding brackets are arranged on the track. The bottom of the sliding bracket is slidably connected to the track, and the outer ring of the sliding bracket is slidably connected to the inner wall of the steel guard cover. The two groups of sliding brackets are connected by multiple hydraulic cylinders. The two groups of sliding brackets, the steel guard cover and the track constitute a sliding support structure.

[0007] In a preferred embodiment, a sliding block is provided at the lower end of the sliding bracket, the sliding block is slidably connected to the track, and a plurality of locking nuts are provided at both ends of the sliding block, and the locking nuts pass through the sliding block and abut against the track.

[0008] In the preferred embodiment, a plurality of top support frames are provided on the upper surface of the sliding bracket, and a top sliding plate is provided at the end of the top support frame, and the top sliding plate is against the inner wall of the steel shield.

[0009] In the preferred embodiment, a plurality of side sliding plates are symmetrically provided on both sides of the sliding bracket, and the side sliding plates are against the inner wall of the steel shield.

[0010] In the preferred embodiment, a plurality of slide bars are provided on the inner wall of the steel shield, and a plurality of slide grooves are provided on the side slide plate and the top slide plate, and the slide grooves are slidably connected to the slide bars.

[0011] In a preferred embodiment, a plurality of top support frames are connected by diagonal tie rods.

[0012] In the preferred embodiment, both ends of the steel shield are provided with inwardly protruding limit ribs, and the side sliding plates and the top sliding plates are against the limit ribs to limit the upper limits.

[0013] In the preferred embodiment, a reinforcement block is provided at the corner position of the sliding bracket.

[0014] The method of use includes: S1, transporting a plurality of steel guard plates to a designated location of a mining tunnel of a medium-thick ore deposit, and assembling a plurality of arc-shaped steel guard plates into a ring-shaped steel guard;

[0015] S2. Assemble the sliding bracket inside the steel shield, assemble the top support frame on the top of the sliding bracket first, install the top sliding plate on the top support frame, and the top sliding plate on the top of the sliding bracket cooperates with the sliding strip on the inner wall of the steel shield;

[0016] S3, the side sliding plates on both sides of the sliding bracket are matched with the sliding strips on the side wall of the steel shield;

[0017] S4. Use a jack to lift up the entire sliding bracket, install a track at the bottom of the sliding bracket, remove the jack, and make the sliding bracket fit with the track;

[0018] S5. Install at least four hydraulic cylinders between the two sliding supports to complete the assembly of the sliding support structure.

[0019] The construction method of the sliding bracket is:

[0020] A1. Two sliding brackets are respectively set at both ends of the steel shield. The front sliding bracket is fixed on the track by locking nuts, and the rear sliding bracket and the track are in a movable state;

[0021] A2. Use the hydraulic cylinder to retract and pull the rear sliding bracket to the middle of the steel shield, loosen the locking nut of the front sliding bracket, and then fix the rear sliding bracket on the track with the locking nut;

[0022] A3. Start the hydraulic cylinder to push the front sliding bracket. The front sliding bracket abuts against the limit retaining edge at the front end of the steel shield to form a limit. The front sliding bracket pushes the entire steel shield to slide inside the mine.

[0023] A4. The sliding bracket at the rear pushes the sliding bracket in the front to drive the entire steel shield to slide on the track. The sliding bracket at the rear rests against the limit stop at the rear end of the steel shield to complete one sliding. Repeat the steps multiple times to complete the sliding of the steel shield.

[0024] The present invention provides a sliding support structure for mining in gently inclined medium-thick ore deposits and a method of using the same. The interior of a steel shield is supported by two groups of sliding brackets. The two groups of sliding brackets slide on tracks. The two groups of sliding brackets are connected by multiple hydraulic cylinders. The steel shield plays a role of temporary support and protection for construction personnel. The entire steel shield can slide on the track through the two groups of sliding brackets, which makes it easy to move the entire steel shield. It can play a role of temporary support at the location where construction is required in the mine tunnel. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 It is the overall appearance structure diagram of the present invention;

[0027] Figure 2 This is a bottom structural diagram of the steel protective barrel of the present invention;

[0028] Figure 3 This is a left-side sectional structural diagram of a steel protective barrel of the present invention;

[0029] Figure 4 It is a front view cross-sectional structural diagram of the present invention;

[0030] Figure 5 This is a structural diagram of the sliding support of the present invention connected via a hydraulic cylinder;

[0031] Figure 6 It is a diagram of the internal structure of the steel protective barrel of the present invention.

[0032] In the figure: steel shield 1; slide bar 101; limit retaining edge 102; sliding bracket 2; slider 201; reinforcement block 202; track 3; hydraulic cylinder 4; top support frame 5; top sliding plate 6; slide groove 601; inclined rod 7; side sliding plate 8; locking nut 9. DETAILED DESCRIPTION

[0033] like Figures 1 to 6As shown, a sliding support structure for mining in a gently inclined medium-thick ore deposit and a method of using the same, a plurality of arc-shaped steel guard plates form an annular steel shield 1, and a track 3 is also provided, two groups of sliding brackets 2 are provided on the track 3, the lower part of the sliding bracket 2 is slidably connected to the track 3, the outer ring of the sliding bracket 2 is slidably connected to the inner wall of the steel shield 1, the two groups of sliding brackets 2 are connected by a plurality of hydraulic cylinders 4, and the two groups of sliding brackets 2, the steel shield 1 and the track 3 form a sliding support structure. A slider 201 is provided at the lower end of the sliding bracket 2, the slider 201 is slidably connected to the track 3, and a plurality of locking nuts 9 are provided at both ends of the slider 201, and the locking nuts 9 pass through the slider 201 and abut against the track 3.

[0034] During use: In order to facilitate the movement of the entire steel shield 1, the front sliding bracket is fixed to the track 3 by using the locking nut 9 first, and the hydraulic cylinder 4 is retracted to pull the rear sliding bracket to the middle of the steel shield 1, loosen the locking nut 9 of the front sliding bracket, and then fix the rear sliding bracket to the track 3 by using the locking nut 9 first, and then start the hydraulic cylinder 4 to push the front sliding bracket, and the front sliding bracket abuts against the limiting retaining edge 102 at the front end of the steel shield 1 to form a limit, and the rear sliding bracket pushes the front sliding bracket to drive the entire steel shield 1 to slide on the track 3, and the rear sliding bracket abuts against the limiting retaining edge 102 at the rear end of the steel shield 1 to complete one sliding, and repeat the steps multiple times to complete the sliding of the steel shield 1.

[0035] In the preferred embodiment, a plurality of top support frames 5 are provided on the upper surface of the sliding bracket 2, and a top sliding plate 6 is provided at the end of the top support frame 5, and the top sliding plate 6 abuts against the inner wall of the steel shield 1. The top support frame 5 is used to support the plurality of top sliding plates 6, and the top sliding plates 6 are slidably connected to the inner wall of the steel shield 1.

[0036] In the preferred embodiment, a plurality of side sliding plates 8 are symmetrically arranged on both sides of the sliding bracket 2, and the side sliding plates 8 are against the inner wall of the steel shield 1. The side sliding plates 8 support and slide the side wall of the steel shield 1, so that the sliding of the steel shield 1 is more uniform and stable.

[0037] In the preferred embodiment, the inner wall of the steel shield 1 is provided with a plurality of slide bars 101, and the side sliding plate 8 and the top sliding plate 6 are provided with a plurality of slide grooves 601, and the slide grooves 601 are slidably connected with the slide bars 101. The slide grooves 601 of the side sliding plate 8 and the top sliding plate 6 are slidably connected with the slide bars 101, which can well fix the position of the steel shield 1, so that the steel shield 1 can slide in a straight line.

[0038] In a preferred embodiment, the plurality of top support frames 5 are connected by diagonal tie rods 7. The diagonal tie rods 7 strengthen the connection structure between the plurality of top support frames 5.

[0039] In the preferred embodiment, the two ends of the steel shield 1 are provided with inwardly protruding limit ribs 102, and the side sliding plates 8 and the top sliding plates 6 are pressed against the limit ribs 102 for upper limit. The two sets of sliding brackets 2 are pressed against the early limit ribs 102 for limit, and are also used to use the sliding brackets 2 to push the steel shield 1 to move.

[0040] In the preferred embodiment, a reinforcing block 202 is provided at the corner of the sliding bracket 2. The reinforcing block 202 strengthens the structure of the sliding bracket 2 to make the structure more stable.

[0041] Example 1

[0042] Further illustrate with reference to Example 1, Figure 1-6 , transport multiple steel guard plates to the designated location of the mining tunnel of the medium-thick ore deposit, and assemble multiple arc-shaped steel guard plates into a ring-shaped steel guard 1.

[0043] Assemble the sliding bracket 2 inside the steel shield 1, first assemble the top support frame 5 on the top of the sliding bracket 2, install the top sliding plate 6 on the top support frame 5, and the top sliding plate 6 on the top of the sliding bracket 2 cooperates with the sliding strip 101 on the inner wall of the steel shield 1.

[0044] The side sliding plates 8 on both sides of the sliding bracket 2 cooperate with the sliding strips 101 on the side walls of the steel shield 1.

[0045] The entire sliding bracket 2 is lifted up by a jack, and the track 3 is installed at the bottom of the sliding bracket 2 . The jack is removed to make the sliding bracket 2 cooperate with the track 3 .

[0046] At least four hydraulic cylinders 4 are installed between the two sliding supports 2 to complete the assembly of the sliding support structure.

[0047] Example 2

[0048] Further illustrate with reference to Examples 1 and 2, Figure 1-6 In the structure shown, the construction method of the sliding bracket is as follows: two sliding brackets 2 are respectively arranged at both ends of the steel shield 1, the front sliding bracket is fixed on the track 3 by using the locking nut 9, and the rear sliding bracket and the track 3 are in an active state.

[0049] The hydraulic cylinder 4 is retracted to pull the rear sliding bracket to the middle of the steel shield 1, the locking nut 9 of the front sliding bracket is loosened, and then the rear sliding bracket is fixed to the track 3 using the locking nut 9.

[0050] Then start the hydraulic cylinder 4 to push the front sliding bracket, the front sliding bracket abuts against the limiting retaining edge 102 at the front end of the steel shield 1 to form a limit, and the front sliding bracket pushes the entire steel shield 1 to slide inside the mine.

[0051] The rear sliding bracket pushes the front sliding bracket to drive the entire steel shield 1 to slide on the track 3, and the rear sliding bracket rests on the limiting retaining edge 102 at the rear end of the steel shield 1 to complete one sliding. The steps are repeated multiple times to complete the sliding of the steel shield 1.

[0052] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A method for using a sliding support structure for mining in a gently inclined medium-thick ore deposit, characterized by: The mine sliding support structure comprises: a plurality of arc-shaped steel guard plates forming an annular steel guard cover (1), a track (3) being provided, two sets of sliding brackets (2) being provided on the track (3), the lower part of the sliding bracket (2) being slidably connected to the track (3), the outer ring of the sliding bracket (2) being slidably connected to the inner wall of the steel guard cover (1), the two sets of sliding brackets (2) being connected via a plurality of hydraulic cylinders (4), and the two sets of sliding brackets (2), the steel guard cover (1) and the track (3) forming a sliding support structure; A sliding block (201) is provided at the lower end of the sliding bracket (2), the sliding block (201) is slidably connected to the track (3), a plurality of locking nuts (9) are provided at both ends of the sliding block (201), and the locking nuts (9) pass through the sliding block (201) and abut against the track (3); A plurality of top support frames (5) are provided on the upper surface of the sliding bracket (2), and a top sliding plate (6) is provided at the end of the top support frame (5), and the top sliding plate (6) abuts against the inner wall of the steel shield (1); A plurality of side sliding plates (8) are symmetrically provided on both sides of the sliding bracket (2), and the side sliding plates (8) are against the inner wall of the steel shield (1); Both ends of the steel shield (1) are provided with inwardly protruding limit ribs (102), and the side sliding plates (8) and the top sliding plate (6) abut against the upper limit of the limit ribs (102); The construction method of the sliding bracket is: A1. Two sliding brackets (2) are respectively arranged at both ends of the steel shield (1). The front sliding bracket is fixed on the track (3) by means of a locking nut (9), and the rear sliding bracket and the track (3) are in a movable state; A2. Use the hydraulic cylinder (4) to retract and pull the rear sliding bracket to the middle of the steel shield (1), loosen the locking nut (9) of the front sliding bracket, and then fix the rear sliding bracket to the track (3) using the locking nut (9); A3, the hydraulic cylinder (4) is started again to push the front sliding bracket, and the front sliding bracket abuts against the limit retaining edge (102) at the front end of the steel shield (1) to form a limit, and the front sliding bracket pushes the entire steel shield (1) to slide inside the mine; A4. The rear sliding bracket pushes the front sliding bracket to drive the entire steel shield (1) to slide on the track (3). The rear sliding bracket abuts against the limit retaining edge (102) at the rear end of the steel shield (1), completing one sliding movement. The steps are repeated multiple times to complete the sliding movement of the steel shield (1).

2. The method for using the sliding support structure for mining in a gently inclined medium-thick ore deposit according to claim 1 is characterized by: The inner wall of the steel shield (1) is provided with a plurality of slide bars (101), and the side sliding plates (8) and the top sliding plates (6) are both provided with a plurality of slide grooves (601), and the slide grooves (601) are slidably connected to the slide bars (101).

3. The method for using the sliding support structure for mining in a gently inclined medium-thick ore deposit according to claim 2 is characterized by: The plurality of top support frames (5) are connected via diagonal tie rods (7).

4. The method for using the sliding support structure for mining in a gently inclined medium-thick ore deposit according to claim 3 is characterized by: A reinforcement block (202) is provided at a corner position of the sliding bracket (2).

5. A method for using a sliding support structure for mining a gently inclined medium-thick ore deposit according to any one of claim 4, characterized in that: Usage methods include: S1, transporting a plurality of steel guard plates to a designated location of a mining tunnel of a medium-thick ore deposit, and assembling a plurality of arc-shaped steel guard plates into an annular steel guard cover (1); S2, assembling the sliding bracket (2) inside the steel shield (1), assembling the top support frame (5) on the top of the sliding bracket (2), installing the top sliding plate (6) on the top support frame (5), and matching the top sliding plate (6) on the top of the sliding bracket (2) with the sliding strip (101) on the inner wall of the steel shield (1); S3, the side sliding plates (8) on both sides of the sliding bracket (2) are matched with the sliding strips (101) on the side walls of the steel shield (1); S4, using a jack to lift up the entire sliding bracket (2), installing the track (3) at the bottom of the sliding bracket (2), removing the jack, and making the sliding bracket (2) and the track (3) cooperate; S5. Install at least four hydraulic cylinders (4) between the two sliding supports (2) to complete the assembly of the sliding support structure.

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