Experimental device for simulating backfill mining method

Abstract

The present invention relates to the technical field of filling mining, and discloses an experimental device for simulating filling mining method, comprising a pressure device, a generating device, a pressure plate replacement device and a stirring device, wherein the generating device comprises a base one, wherein the base one is provided with an anti-splashing groove with an opening facing upward, a filling containing groove is installed in the anti-splashing groove, and liquid outflow channels are arranged around the filling containing groove, and a water filter cloth is installed in the liquid outflow channel; the present invention automatically realizes the replacement of the pressure plate through the pressure plate replacement device, thereby avoiding the problem of cumbersome replacement steps; wherein the pressure plate can be automatically lifted up when clamped through the cooperation of the extrusion block and the extrusion groove, thereby realizing the active connection between the loading cylinder and the insertion part, and the device is automatically reset when disassembled, which is beneficial to the next replacement of the pressure plate by the device.

Description

Technical Field

[0001] The invention relates to the technical field of filling mining, in particular to an experimental device for simulating filling mining method. Background Art

[0002] Backfill mining technology has been developed early in my country's mineral resource mining, especially in the mining of metal mines, but it still has problems such as high cost, low production efficiency, and changeable environmental conditions. In order to solve these problems, researchers need to be able to visually observe the underground conditions during backfill mining and quantify the conditions of certain parts of the backfill mining process.

[0003] For example, the Chinese patent application with publication number CN117092285A discloses an experimental device for simulating backfill mining and its use method, including a pressure device, a generator, and a stirring device, wherein the generator is located under the pressure head of the pressure device, and the input end of the generator is connected to the stirring device via a pipeline. This invention can help researchers select more suitable backfill raw materials, backfill raw material ratios, and water filtration materials according to relevant results by simulating backfill flow, backfill solidification, retaining wall bearing capacity, and water filtration of water filter cloth during backfill mining, based on the data recorded by the experimental device and further experiments on the solidified backfill body, effectively solving the problems of high mining costs, low mining efficiency, and poor safety in mines.

[0004] In the above scheme, when installing the pressure plate, the operator pushes the shift block away from the countersunk hole, even if the shift block and the latch move away from the countersunk hole, and then aligns the countersunk hole with the pressure head and inserts it, and then releases the shift block. The latch is inserted into the annular groove under the pushing action of the compression spring. Due to the top action of the latch, the pressure plate cannot be separated from the pressure head. When disassembling, the shift block and the latch move away from the countersunk hole to separate the pressure plate from the pressure head plate, so that another pressure plate can be replaced. It can be seen that although the pressure plate can be replaced, the replacement of the pressure plate requires steps such as disassembly, replacement, alignment, and lifting, and the steps are relatively cumbersome. Summary of the invention

[0005] The present invention aims to solve the technical problem that when the pressing plate needs to be replaced, the steps of disassembly, replacement, alignment, lifting, etc. are required, and the steps are relatively cumbersome. To this end, the present invention provides an experimental device for simulating the backfill mining method.

[0006] An experimental device for simulating backfill mining method includes a pressure device, a generating device, a pressure plate replacement device and a stirring device. The generating device includes a base one, and the base one is provided with an anti-splashing groove with an upward opening, a filling containing groove is installed in the anti-splashing groove, liquid outflow channels are arranged on all sides of the filling containing groove, a water filter cloth is installed in the liquid outflow channel, a pressure plate is movably arranged in the filling containing groove, and the pressure plate is detachably connected to the pressure device. The pressure plate replacement device is arranged on one side of the generating device, and is used for replacing the pressure plates of different sizes to connect with the pressure device. The stirring device is connected to the filling containing groove through a pipeline.

[0007] Preferably, the pressure device includes a base two, on which a connecting column one is fixedly mounted, a connecting column two is fixedly mounted on the top of the connecting column one, a lead screw perpendicular to the connecting column two is rotatably mounted on the lower surface of one end of the connecting column two away from the connecting column one, a driving motor one for driving the lead screw to rotate is also mounted on the upper surface of the connecting column two, a lead screw nut is threadedly sleeved on the lead screw, a plurality of anti-rotation sliding holes are opened on the lead screw nut, a plurality of anti-rotation rods are also mounted on the lower surface of the connecting column two, the anti-rotation rods are nested in the anti-rotation sliding holes one by one, a U-shaped mounting groove is fixedly mounted on the lead screw nut, and a loading head is fixedly mounted on the bottom end of the U-shaped mounting groove.

[0008] Preferably, a mounting hole is provided on the loading head, a loading cylinder is rotatably mounted in the mounting hole, positioning teeth and grooves are evenly mounted on the inner wall of the loading cylinder, and a guiding structure is provided at the bottom end of the positioning teeth and grooves.

[0009] Preferably, a mounting column is provided at the center of the upper surface of the pressure plate, the inner wall of the mounting column is slidably connected with a mounting sleeve through a limiting sliding groove, the top of the mounting column is symmetrically provided with an extrusion groove, the mounting sleeve is symmetrically provided with a limited mounting piece, the limiting mounting piece is provided with a sliding hole, a sliding rod is slidably provided in the sliding hole, one end of the sliding rod is fixedly connected with an extrusion block, the other end of the sliding rod is connected with an end sealing piece, and a spring is sleeved on the sliding rod between the end sealing piece and the limiting mounting piece;

[0010] An insertion portion for being embedded in the loading tube is connected to the top end surface of the mounting column, and a tooth portion corresponding to the positioning tooth groove is provided on the insertion portion.

[0011] Preferably, the pressure plate replacement device includes a base three, on which a rotating block is rotatably mounted via a rotating column, on which a telescopic column is linearly slidably mounted, and a U-shaped fork is fixedly mounted at one end of the telescopic column away from the rotating block, and the U-shaped fork is used to be nested between the lower surface of the mounting sleeve and the upper surface of the pressure plate.

[0012] Preferably, the pressure plate replacement device further comprises a telescopic rod with one end rotatably mounted on the base three, and the other end of the telescopic rod is hinged to an end of the rotating block away from the U-shaped fork.

[0013] Preferably, both sides of the loading head extend upwardly at an angle, and clamping slide grooves are arranged on both sides of the loading head, and a slider is slidably arranged in the clamping slide groove, and the slider is connected with a clamping plate;

[0014] The loading head is provided with a telescopic cylinder for pushing the clamping plate for clamping.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The present invention automatically replaces the pressure plate through the pressure plate replacement device, avoiding the problem of cumbersome replacement steps; wherein the pressure plate can be automatically lifted up when clamped through the cooperation of the extrusion block and the extrusion groove, thereby realizing the active connection between the loading cylinder and the insertion part. The device is automatically reset when disassembled, which is beneficial to the next replacement of the pressure plate by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention from one angle (excluding the telescopic cylinder and the telescopic rod);

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle (excluding the telescopic cylinder and the telescopic rod);

[0020] Figure 3 It is a schematic diagram of the installation of the extrusion block of the present invention;

[0021] Figure 4 It is a top view of the overall structure of the present invention (excluding the telescopic rod);

[0022] Figure 5 This is a schematic diagram of the internal structure of the installation sleeve of the present invention;

[0023] Figure 6 It is a schematic diagram of the installation of the guide structure of the present invention.

[0024] In the figure: 1, base 1; 2, anti-splash groove; 3, filling and containing groove; 4, liquid outflow channel; 5, water filter cloth; 6, pressure plate; 7, base 2; 8, connecting column 1; 9, connecting column 2; 10, lead screw; 11, drive motor 1; 12, lead screw nut; 13, anti-rotation rod; 14, U-shaped installation groove; 15, loading head; 16, loading cylinder; 17, positioning tooth groove; 18, guide structure; 19, installation Column; 20, limit slide; 21, installation sleeve; 22, extrusion groove; 23, limit installation plate; 24, slide rod; 25, extrusion block; 26, end plate; 27, spring; 28, insertion part; 29, tooth part; 30, base three; 31, rotating column; 32, rotating block; 33, telescopic column; 34, U-shaped fork; 35, telescopic rod; 36, clamping slide; 37, slider; 38, splint; 39, telescopic cylinder. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] like Figures 1 to 6 As shown, the present invention provides an experimental device for simulating backfill mining method, including a pressure device, a generating device, a pressure plate replacement device and a stirring device. The generating device includes a base 1, on which is provided an anti-splashing groove 2 with an opening facing upward, a filling containing groove 3 is installed in the anti-splashing groove 2, and liquid outflow channels 4 are arranged around the filling containing groove 3, and a water filter cloth 5 is installed in the liquid outflow channel 4. A pressure plate 6 is movably arranged in the filling containing groove 3, and the pressure plate 6 is detachably connected to the pressure device. The pressure plate replacement device is arranged on one side of the generating device, and is used for replacing pressure plates 6 of different sizes to connect with the pressure device. The stirring device is connected to the filling containing groove 3 through a pipeline.

[0027] Among them, the pressure device includes a base 27, a connecting column 18 is fixedly installed on the base 27, a connecting column 29 is fixedly installed on the top of the connecting column 18, a lead screw 10 perpendicular to the connecting column 29 is rotatably installed on the lower surface of one end of the connecting column 29 away from the connecting column 18, and a driving motor 11 for driving the lead screw 10 to rotate is also installed on the upper surface of the connecting column 29, a lead screw nut 12 is threadedly sleeved on the lead screw 10, and a plurality of anti-rotation sliding holes are opened on the lead screw nut 12, and a plurality of anti-rotation rods 13 are also installed on the lower surface of the connecting column 29, and the anti-rotation rods 13 are nested in the anti-rotation sliding holes one by one, a U-shaped mounting groove 14 is fixedly installed on the lead screw nut 12, and a loading head 15 is fixedly installed at the bottom end of the U-shaped mounting groove 14.

[0028] The loading head 15 is provided with a mounting hole, in which a loading cylinder 16 is rotatably mounted. Positioning tooth grooves 17 are evenly mounted on the inner wall of the loading cylinder 16 , and a guide structure 18 is provided at the bottom end of the positioning tooth groove 17 .

[0029] Among them, a mounting column 19 is arranged at the center of the upper surface of the pressure plate 6, and the inner wall of the mounting column 19 is slidably connected with a mounting sleeve 21 through a limiting sliding groove 20, and an extrusion groove 22 is symmetrically arranged at the top of the mounting column 19, and a limiting mounting piece 23 is symmetrically arranged on the mounting sleeve 21, and a sliding hole is opened on the limiting mounting piece 23, and a sliding rod 24 is slidably arranged in the sliding hole, one end of the sliding rod 24 is fixedly connected with an extrusion block 25, and the other end of the sliding rod 24 is connected to a sealing piece 26, and a spring 27 is sleeved on the sliding rod 24 between the sealing piece 26 and the limiting mounting piece 23; an insertion portion 28 for embedding into the loading cylinder 16 is connected to the top surface of the mounting column 19, and a tooth portion 29 corresponding to the positioning tooth groove 17 is arranged on the insertion portion 28.

[0030] Among them, the pressure plate replacement device includes a base three 30, on which a rotating block 32 is rotatably installed through a rotating column 31, on which a telescopic column 33 is linearly slidably installed, and a U-shaped fork 34 is fixedly installed at one end of the telescopic column 33 away from the rotating block 32, and the U-shaped fork 34 is used to be nested between the lower surface of the mounting sleeve 21 and the upper surface of the pressure plate 6.

[0031] The pressing plate replacement device further comprises a telescopic rod 35 rotatably mounted on the base 30 at one end, and the other end of the telescopic rod 35 is hinged to an end of the rotating block 32 away from the U-shaped fork 34 .

[0032] Among them, the two sides of the loading head 15 extend upward at an angle, and clamping grooves 36 are provided on both sides of the loading head 15. A slider 37 is slidably provided in the clamping groove 36, and the slider 37 is connected to a clamping plate 38; a telescopic cylinder 39 is installed on the loading head 15 for pushing the clamping plate 38 for clamping.

[0033] The working principle of the present invention is:

[0034] When replacing a platen 6 of a different size, first drive the telescopic rod 35 to extend and retract, so that the rotating block 32 rotates along the rotating column 31 until the U-shaped fork 34 is stacked for the pre-placed platen 6, and then the telescopic column 33 is extended in the rotating block 32 (similar to a hydraulic cylinder), and then the U-shaped fork 34 is directly inserted between the lower surface of the mounting sleeve 21 of the topmost platen 6 in the stacking of the platens 6 and the upper surface of the platen 6, and then the telescopic rod 35 is continued to be controlled to extend, so that the rotating block 32 rotates along the rotating column 31, and at the same time the telescopic column 33 is controlled to extend and retract, until the platen 6 is located below the loading head 15, and at this time the loading cylinder 16 is located directly above the insertion portion 28;

[0035] Then, the telescopic cylinder 39 is controlled to extend, thereby pushing the clamping plate 38 to slide along the clamping slot 36 through the slider 37. Since the clamping slot 36 is arranged in an arc shape, the sliding trajectory of the clamping plate 38 is the same as that of the clamping slot 36. The overall performance is that the clamping plate 38 slides from the top to the bottom, and at the same time the direction of the clamping plate 38 rotates from the inclined direction to the vertical direction, so that it can be ensured that the clamping plate 38 does not block the movement of the insertion part 28 when it is opened, and the end sealing pieces 26 on both sides below the insertion part 28 can be squeezed when the clamping plate 38 is closed. When the end sealing pieces 26 are pressed, the end sealing pieces 26 drive the slide rod 24 to The slide bar 24 drives the extrusion block 25 to move inward together, and the left and right extrusion blocks 25 squeeze the extrusion groove 22. The extrusion of the extrusion groove 22 and the extrusion block 25 causes the extrusion groove 22 to rise, thereby driving the insertion portion 28 to be inserted into the loading cylinder 16. The tooth portion 29 that is not aligned with the positioning tooth groove 17 is guided into the positioning tooth groove 17 through the guide structure 18 in the loading cylinder 16. At this time, the pressure plate 6 completes the upward stable connection process, and then controls the telescopic column 33 to contract, so that the U-shaped fork 34 is withdrawn, and then controls the telescopic rod 35 to extend and retract, so that the U-shaped fork 34 is reset;

[0036] A gear ring may also be provided at the top of the loading cylinder 16, and then a gear driven by a motor is engaged therewith, thereby controlling the rotation position adjustment of the loading cylinder 16 to overcome the deviation of the pressing plate 6 from the preset position;

[0037] Then, the driving motor 11 drives the lead screw 10, thereby the lead screw nut 12 on the lead screw 10, and then through the transmission of the action between the parts, the pressing plate 6 slides downward to perform the test;

[0038] After the test is completed, the above process is repeated so that the U-shaped fork 34 is inserted back between the lower surface of the mounting sleeve 21 and the upper surface of the pressure plate 6, and then the clamp 38 is controlled to open, so that the connection between the pressure plate 6 and the loading head 15 is loosened, thereby completing a round of testing, and then the next specification pressure plate 6 is replaced for a new round of testing. The specific method of filling the filling and containing tank 3 through the pipeline by the stirring device and the related specific test schemes can refer to the schemes of the prior art and are not specifically limited in the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An experimental device for simulating backfill mining method, comprising a pressure device, a generating device, a pressure plate replacement device and a stirring device, wherein the generating device comprises a base (1), wherein the base (1) is provided with an anti-splashing groove (2) with an opening facing upward, wherein a filling receiving groove (3) is installed in the anti-splashing groove (2), wherein liquid outflow channels (4) are arranged around the filling receiving groove (3), wherein a water filter cloth (5) is installed in the liquid outflow channel (4), and wherein a pressure plate (6) is movably arranged in the filling receiving groove (3), wherein the characteristics are as follows: The pressing plate (6) is detachably connected to the pressure device, the pressing plate replacement device is arranged on one side of the generating device and is used to replace the pressing plates (6) of different sizes to be connected to the pressure device, and the stirring device is connected to the filling and containing tank (3) via a pipeline; The pressure device comprises a base 2 (7), a connecting column 1 (8) is fixedly mounted on the base 2 (7), a connecting column 2 (9) is fixedly mounted on the top of the connecting column 1 (8), a lead screw (10) perpendicular to the connecting column 2 (9) is rotatably mounted on the lower surface of one end of the connecting column 2 (9) away from the connecting column 1 (8), a driving motor 1 (11) for driving the lead screw (10) to rotate is also mounted on the upper surface of the connecting column 2 (9), a lead screw nut (12) is threadedly sleeved on the lead screw (10), a plurality of anti-rotation sliding holes are opened on the lead screw nut (12), a plurality of anti-rotation rods (13) are also mounted on the lower surface of the connecting column 2 (9), the anti-rotation rods (13) are nested in the anti-rotation sliding holes in a one-to-one correspondence, a U-shaped mounting groove (14) is fixedly mounted on the lead screw nut (12), and a loading head (15) is fixedly mounted on the bottom end of the U-shaped mounting groove (14); The loading head (15) is provided with a mounting hole, a loading cylinder (16) is rotatably mounted in the mounting hole, positioning tooth grooves (17) are evenly mounted on the inner wall of the loading cylinder (16), and a guide structure (18) is provided at the bottom end of the positioning tooth groove (17); A mounting column (19) is arranged at the center of the upper surface of the pressure plate (6); the inner wall of the mounting column (19) is slidably connected to a mounting sleeve (21) via a limiting sliding groove (20); an extrusion groove (22) is symmetrically arranged at the top of the mounting column (19); a limiting mounting piece (23) is symmetrically arranged on the mounting sleeve (21); a sliding hole is provided on the limiting mounting piece (23); a sliding rod (24) is slidably arranged in the sliding hole; one end of the sliding rod (24) is fixedly connected to an extrusion block (25); the other end of the sliding rod (24) is connected to an end sealing piece (26); a spring (27) is sleeved on the sliding rod (24) between the end sealing piece (26) and the limiting mounting piece (23); An insertion portion (28) for embedding into the loading cylinder (16) is connected to the top end surface of the mounting column (19), and a tooth portion (29) corresponding to the positioning tooth groove (17) is provided on the insertion portion (28).

2. The experimental device for simulating backfill mining method according to claim 1, characterized in that: The pressure plate replacement device comprises a base three (30), a rotating block (32) is rotatably mounted on the base three (30) via a rotating column (31), a telescopic column (33) is linearly slidably mounted on the rotating block (32), a U-shaped fork (34) is fixedly mounted on one end of the telescopic column (33) away from the rotating block (32), and the U-shaped fork (34) is used to be nested between the lower surface of the mounting sleeve (21) and the upper surface of the pressure plate (6).

3. The experimental device for simulating backfill mining method according to claim 2, characterized in that: The pressure plate replacement device also includes a telescopic rod (35) with one end rotatably mounted on the base three (30), and the other end of the telescopic rod (35) is hinged to an end of the rotating block (32) away from the U-shaped fork (34).

4. The experimental device for simulating backfill mining method according to claim 3, characterized in that: Both sides of the loading head (15) extend upwardly in an inclined manner, and both sides of the loading head (15) are provided with clamping slide grooves (36), and a slider (37) is slidably provided in the clamping slide groove (36), and the slider (37) is connected to a clamping plate (38); The loading head (15) is provided with a telescopic cylinder (39) for pushing the clamping plate (38) for clamping.

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