Indoor experiment method for simulating filling process of metal underground mine stope
Technical Field
The invention relates to an indoor experimental method for simulating a filling process of a metal underground mine stope.
Background
In the underground mine filling process, a ground filling station is built on the ground, filling equipment, a stirring process and the preparation of the whole filling material are advanced and transparent, but the stope is relatively closed in the process that the filling material enters the stope, personnel and equipment cannot enter the stope in the filling process, and the monitoring and control of the whole filling process cannot be realized; no matter mine tailing filling or cemented filling, the proportion of sand accounts for most of the filling materials, but in the flowing process of the filling materials, because the specific gravity of the sand is high and the specific gravity of the cement is low, the tailing can be precipitated too early, the strength of a filling body is uneven, and the front end strength and the rear end strength in the whole filling field are obviously different. Because the filling process is totally closed, the filling process cannot be objectively known, and the overall strength of the filling body cannot be evaluated.
Disclosure of Invention
The invention aims to provide an indoor experimental method for simulating the filling process of a metal underground mine stope, which is beneficial to solving the problem of strength detection of filling bodies at all positions of the mine stope in the filling process so as to improve the whole mine filling process.
The technical scheme of the invention is as follows: an indoor experiment method for simulating the filling process of a metal underground mine stope comprises an indoor experiment device for simulating the filling process of the metal underground mine stope, wherein the indoor experiment device comprises a base with universal wheels, a balance weight is arranged on the base, a slurry collecting box is arranged on the upper side of the base, a supporting rod is fixed on the rear side of the slurry collecting box, an energy-saving lamp is arranged on the upper portion of the supporting rod, a cantilever rod is arranged at the upper end of the supporting rod, a camera is arranged at the cantilever end of the cantilever rod, a grouting pipe with a water valve is arranged on one side of the upper portion of the slurry collecting box, a grouting pipe is connected to the inlet end of the grouting pipe, a supporting partition plate driven to lift by a lifting mechanism is arranged between the base and the slurry collecting box, mold boxes are arranged on the supporting partition plate along the transverse intervals, and a liquid outlet mechanism which is applied to injecting slurry into the mold boxes relative to, the slurry collecting box is also provided with a controller for controlling the lifting mechanism, and the steps are as follows:
(1) starting a power supply main brake, and lighting an energy-saving lamp arranged on a support rod to prepare a camera light source for the experimental process;
(2) the balance weight on the base is adjusted to enable the whole equipment to be in a balanced state;
(3) connecting the grouting pipe with a guniting pipe for filling liquid to flow, and simultaneously turning on a controller switch;
(4) opening a water valve, and controlling the opening degree of the water valve according to the flow rate of the slurry;
(5) after the valve is opened, the slurry flows into the slurry collecting box, and when the slurry is accumulated to a certain position in the slurry collecting box, the water valve is closed;
(6) the camera records the flowing and precipitating processes of the slurry in the grouting process, and provides pictures and data for later experimental result arrangement;
(7) the operation controller controls the hydraulic device to drive the lifting mechanism to lift the mold box filled with the molds;
(8) after the lifting mechanism rises to a specified position, the liquid outlet mechanism is started to enable the slurry to flow into the mold, and filling bodies at different positions are obtained;
(9) when the filling body is filled in the mold, the liquid outlet mechanism is closed;
(10) the controller controls the hydraulic device to drive the lifting mechanism to move downwards;
(11) taking out the mold for maintenance;
(12) and (4) pushing the equipment to another position according to the experimental requirement, and repeating the actions from the step (1) to the step (11).
Further, the serum collection box is made of transparent materials.
Furthermore, a drainage system is installed on the slurry collection box and comprises a water storage tank arranged on the other side of the slurry collection box, a drainage hole communicated with the water storage tank is formed in the slurry collection box, and a drainage pipeline with an electric water valve is arranged on the lower portion of the water storage tank.
Further, elevating system is including setting up the stand between thick liquid collection box and the base all around, support baffle all around respectively with stand sliding fit, one side of base is provided with down the baffle, be provided with the constant head tank down on the baffle, be provided with the flexible body that goes up and down by hydraulic means drive in the constant head tank, the upper end of flexible body is fixed with the last baffle with support baffle fixed connection.
Furthermore, the liquid outlet mechanism comprises longitudinal tunnels which are arranged on the bottom plate of the slurry collecting box at intervals along the transverse direction, longitudinal grooves are respectively arranged on two side walls of each longitudinal tunnel, inserting plates are arranged in the longitudinal tunnels, and convex parts matched with the longitudinal grooves are respectively arranged at two side parts of each inserting plate; when the lifting mechanism rises to the designed position, the inserting plate is slowly drawn out, so that the slurry flows into the die.
Compared with the prior art, the invention has the following advantages:
1. the problem that the grout of the filling body at different stages and different positions can still be collected when the deep part of the metal mine is in a high-risk environment is solved, so that the strength of the filling body is detected, the safety operation is realized, the manpower and material resources are saved, the automation is greatly improved, and the normal operation of the mine under the condition of quality and quantity guarantee is ensured;
2. the slurry collection condition, the operation condition of the lifting equipment and the filling body pouring condition can be shot and recorded in real time through the camera, and can be transmitted to the computer terminal through the controller, so that real-time management is facilitated, and the shot images are analyzed, judged and operated on the computer terminal to perform the next operation;
3. the filling liquid in filling fields at different positions can be collected through terminal control, so that the intensity detection is carried out, and the filling process is analyzed and reproduced;
4. the vibrator can analyze and judge the intensity change of the filling body after vibration and stirring, so that the intensity of the filling body reaches the intensity requirement and is indicated for the next step.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the lifting mechanism of the present invention;
FIG. 3 is a partial schematic view of the lifting mechanism of the present invention;
FIG. 4 is a diagram of the drainage system of the slurry collection box of the present invention;
FIG. 5 is a schematic view of the mold box and mold mounting structure of the present invention;
FIG. 6 is a schematic view of the connection structure of the inserting plate and the grout collecting box of the present invention;
FIG. 7 is a partial schematic view of a camera support bar and upright of the present invention;
in the figure: 1-universal wheel; 2-a base; 3, balancing weight; 4-a hydraulic device; 5, a column; 6-supporting the partition plate; 7, a mold box; 8, inserting a plate; 9-a controller; 10-a serum collection box; 11-a water storage tank; 12-a drain pipe; 13-a support bar; 14-energy saving lamp; 15-a camera; 16-a water valve; 17-grouting pipe; 18-a guniting pipe; 19-a lifting mechanism;
701-a through hole; 702-a mold; 703-bolt and nut; 704-a positioning plate;
801-longitudinal lanes; 802-longitudinal grooves; 803-a convex part; 804-column threaded hole;
1101-a drain hole; 1102-an electric water valve; 1104-a membrane pressure sensor;
1301 — a cantilever bar;
1901 — lower baffle; 1902-an expandable body; 1903-positioning plate; 1905 a cube on the lower side; 1906-positioning groove; 1907 — cube on top; 1908 — convex plate; 1909 — bottom hole; 1910 — connecting hole.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1 to 7
The indoor experiment method for simulating the filling process of the metal underground mine stope comprises an indoor experiment device for simulating the filling process of the metal underground mine stope, wherein the indoor experiment device comprises a base 2 with universal wheels 1, and a counterweight 3 is arranged on the base and is installed on one side with light bearing weight of the base. The upper side of base is provided with thick liquid and gathers box 10, the rear side of thick liquid is gathered the box and is fixed with bracing piece 13, bracing piece upper portion is provided with electricity-saving lamp 14, and the upper end of bracing piece is provided with the cantilever bar, the cantilever end of cantilever bar is provided with camera 15. And one side of the upper part of the slurry collection box is provided with a grouting pipe 17 with a water valve 16, the inlet end of the grouting pipe is connected with a guniting pipe 18, and the guniting pipe is a plastic hose. Be located and be provided with the supporting diaphragm 6 that is gone up and down by elevating system 19 drive between base and the thick liquid collection box, be provided with mould box 7 along horizontal interval on the supporting diaphragm, the thick liquid collection box still is provided with the play liquid mechanism that is applied to the injection thick liquid in to the mould box relatively with mould box, still is provided with the controller 9 that is used for controlling elevating system on the thick liquid collection box, and the step is as follows:
(1) starting a power supply main brake, and lighting an energy-saving lamp arranged on a support rod to prepare a camera light source for the experimental process;
(2) the balance weight on the base is adjusted to enable the whole equipment to be in a balanced state;
(3) connecting the grouting pipe with a guniting pipe for filling liquid to flow, and simultaneously turning on a controller switch;
(4) opening a water valve, and controlling the opening degree of the water valve according to the flow rate of the slurry;
(5) after the valve is opened, the slurry flows into the slurry collecting box, and when the slurry is accumulated to a certain position in the slurry collecting box, the water valve is closed; the drainage system arranged on the other side surface of the slurry collection box can automatically discharge redundant water;
(6) the camera records the flowing and precipitating processes of the slurry in the grouting process, and provides pictures and data for later experimental result arrangement;
(7) the operation controller controls the hydraulic device to drive the lifting mechanism to lift the mold box filled with the molds;
(8) after the lifting mechanism rises to a specified position, the liquid outlet mechanism is started to enable the slurry to flow into the mold, and filling bodies at different positions are obtained;
(9) when the filling body is filled in the mold, the liquid outlet mechanism is closed;
(10) the controller controls the hydraulic device to drive the lifting mechanism to move downwards;
(11) taking out the mold for maintenance;
(12) and (4) pushing the equipment to another position according to the experimental requirement, and repeating the actions from the step (1) to the step (11).
In this embodiment, the camera is mounted in a sleeve at a cantilever end of the cantilever rod, and the cantilever rod and the support rod of the camera are welded together through the orthogonal frame. The slurry collection condition, the operation condition of the lifting device and the condition of the pouring filling body are shot and recorded in real time through the camera, and can be transmitted to the computer terminal through the controller, so that real-time management is facilitated, and the computer terminal is analyzed, judged and operated through shot images to perform the next operation. The energy-saving lamp is installed on one side of the supporting rod facing the equipment through a bolt.
In this embodiment, because the density of sand is greater than the cement thick liquid, the bottom is gone into to sand meeting very fast, and the thick liquid is gathered the box and is transparent material, can really restore the whole process that the thick liquid flows and deposits.
In this embodiment, the slurry collecting box is provided with a drainage system, the drainage system comprises a water storage tank 11 arranged at the other side of the slurry collecting box, the slurry collecting box is provided with a drainage hole 1101 communicated with the water storage tank, and the lower part of the water storage tank is provided with a drainage pipe 12 provided with an electric water valve 1102 for timely draining off redundant water. A waterproof film pressure sensor 1104 is arranged in the water storage tank so as to sense the water pressure in the water storage tank, when the water level rises to the position of the film pressure sensor, a pressure sensor arranged in the water storage tank is triggered, and then an electric water valve arranged on a drainage pipeline is controlled to be automatically closed through a computer terminal.
In this embodiment, elevating system is including setting up stand 5 between thick liquid collection box all around and the base, supporting partition plate all around respectively with stand sliding fit, the stand has the effect of restriction supporting partition plate moving direction. One side of base is provided with down baffle 1901, be provided with constant head tank 1906 down on the baffle, be provided with the flexible body 1902 by the hydraulic means drive lift of installing on the counter weight in the constant head tank, the lower extreme of the flexible body is connected with the constant head tank through the locating plate, and the locating plate passes through bolt and nut and links to each other with the constant head tank, the upper end of the flexible body is fixed with the last baffle with support baffle fixed connection through locating plate 1903.
In this embodiment, a cube shallow slot is dug respectively in four angular positions on the base, the stand welding is in the cube shallow slot, four through-holes have been opened to the support baffle four angular positions, the stand passes the through-hole, and the top processing of stand is the helicitic texture, the thick liquid is gathered box bottom and is opened and be processed into the nut hole with the helicitic texture assorted on stand top, the stand tip is screwed through precession nut hole and is connected with thick liquid collection box.
In this embodiment, the telescopic body includes hollow cubes which are gradually reduced from top to bottom and are in nested connection, the upper end portion of the cube 1905 located on the lower side is inserted from a bottom hole on a cube bottom plate located on the upper side, a convex plate 1908 whose area is larger than that of the bottom hole is arranged on the upper end portion of the cube located on the lower side, and a connection hole 1910 for connecting with a hydraulic device is arranged on the convex plate. The uppermost hollow cube is connected to a hydraulic device. Therefore, the hydraulic oil is injected into the hollow cube through the hydraulic device to enable the telescopic body to complete the telescopic operation.
In this embodiment, play liquid mechanism includes along horizontal interval set up vertical tunnel 801 on thick liquid collection box bottom plate, the both sides wall in vertical tunnel is provided with vertical recess 802 respectively, is provided with picture peg 8 in the vertical tunnel, the both sides portion of picture peg is provided with respectively with vertical recess matched with convex part 803. When the lifting mechanism rises to the designed position, the inserting plate is slowly drawn out, so that the slurry flows into the die.
In this embodiment, the mold box 7 is fixed on the supporting partition plate through a positioning plate 704 and a bolt and a nut 703, the mold box can be used for placing the mold 702, and the periphery of the supporting partition plate is provided with a through hole 701 in sliding fit with the upright column.
It will be apparent to those skilled in the art that various modifications, changes, substitutions and variations can be made in the above-described exemplary embodiments without departing from the spirit and scope of the invention.