CN104141494A - Physical simulation research device for gentle dip medium-thickness ore body stoping and use method thereof - Google Patents
Physical simulation research device for gentle dip medium-thickness ore body stoping and use method thereof Download PDFInfo
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Abstract
The invention discloses a physical simulation research device for gentle dip medium-thickness ore body stoping and a use method of the physical simulation research device, belonging to the technical field of mining engineering. The device comprises a bottom plate, a one-step mining experiment box and a two-step mining experiment box, wherein ore discharge chambers are formed in the bottom plate; ore outlets are formed in the bottoms of the one-step mining experiment box and the two-step mining experiment box; the ore discharge step distance, the distances among the ore discharge chambers and the angle of a fourth boundary plate can be adjusted. The use method of the device comprises performing one-step physical simulation ore discharge experiment, two-step physical simulation ore discharge experiment and ore dilution mechanism simulation experiment, simulating mining operation in the field of mines by adjusting the ore discharge step distance, the distances among the ore discharge chambers and the angle of the fourth boundary plate, and designing an optimal mining mode. By adopting the device, simulation on the mining process of a gentle dip medium-thickness ore body can be achieved, and technical support is provided for efficient and economical ore stoping of similar mines.
Description
Technical field:
The invention belongs to mining engineering technical field, particularly relate to a kind of gently inclined medium thick orebody back production physical simulation research device and using method thereof.
Background technology:
Along with national economy is lasting, stable, fast-developing, country constantly increases the demand of mineral products.China's metalliferous deposit lean ore is many, rich ore is few, small-sized ore deposit is many, the resources characteristic that large-scale, super-huge ore deposit is few and the requirement of development of the national economy high speed development are far from suitable, and superficial part ore deposit, rich ore are fewer and feweri in addition, and large quantities of mines phase out into deep mining, mining depth constantly increases, mining conditions worsens increasingly, and mining difficulty is increasing, causes resource supply and demand contradiction more outstanding.But solution shortage of resources, except strengthening exploration dynamics, improves resource recoverable amount, when marching to deep orebody exploitation, also should adopt advanced mining methods and winning equipment, safe, efficient, economic back production uneasily mining orebody.
Gently inclined medium thick orebody is acknowledged as uneasily mining orebody at present, and because inclination angle is slow, broken ore can not be borrowed completely from focusing on bottom and emit, and lower wall loss amount is larger, and when in scraper road, electricity consumption scraping is removed, flow by gravity electric scraper discharging efficiency is very low; Thick in ore body, as digging chassis ore removal funnel, to adopt and cut than greatly, efficiency is low, and ore cost of production is high; Ore-rock stability is poor, cannot carry out extensive operation, causes production capacity low.Domestic and international most of gently inclined medium thick orebody mine adopts stratified filling method and admission passage filling method to exploit this type of ore body more at present.Production capacity is low is the greatest problem running in this class orebody mining process.
For improving gently inclined medium thick orebody production capacity, expert has proposed sublevel mining room to be divided into upper and lower two parts both at home and abroad, and substep exploitation, first adopts bottom mineral building, after bottom mineral building is exploited complete and filling, then the actual mining technology scheme of back production top mineral building.Two rock drilling gallerys in each section construction arteries and veins, outside arteries and veins simultaneously, respectively rock drilling and the ore removal of responsible top mineral building and bottom mineral building.This method application medium-length hole ore deposit that falls, supporting scraper ore removal, greatly improve the production capacity in mine, but before substep exploitation, need to study gently inclined medium thick orebody ore prose style free from parallelism movement law and ore losses dilution mechanism in high-efficiency mining process, optimize the structural parameters of corresponding stope, comprise the research of dilution mechanism and the structural parameters of adopting the lateral opening angle of lower wall, ore caving interval, lower wall ore removal drift interval and the isoparametric ore of ore drawing mode.And present stage does not have the reasonable plan of a set of complete relevant parameter for substep extraction system research, traditional mining simulation scheme is also difficult to be applicable to the substep extraction system of middle thickness orebody.
Summary of the invention:
The problem existing for solving prior art, the present invention proposes a kind of simple in structure, easy to operate, and cost is low, and similarity degree is high, for gently inclined medium thick orebody back production physical simulation research device and the using method thereof of substep extraction system.
For achieving the above object, the present invention adopts following technical scheme: a kind of gently inclined medium thick orebody back production physical simulation research device, comprises that base plate, a step are adopted experimental box and two steps are adopted experimental box;
Described base plate upside is provided with that a step is adopted rock drilling chamber and two steps are adopted rock drilling chamber, one step is adopted rock drilling chamber and two steps and is adopted rock drilling chamber and be arranged in parallel, adopt on the sidewall that rock drilling chamber and two steps adopt rock drilling chamber and be respectively arranged with some groups of corresponding breach in a step, the spacing of described breach is identical, and this spacing can regulate, on base plate, be provided with the some group ore removal chambers corresponding with breach, described ore removal chamber is the square groove type that Open Side Down places, adopting top, rock drilling chamber in a step is provided with a step and adopts rock drilling chamber top board, adopting top, rock drilling chamber in two steps is provided with two steps and adopts rock drilling chamber top board, a described step is adopted rock drilling chamber top board and two steps, and to adopt rock drilling chamber top board be the two-stage structure separating in centre, described base plate also comprises Left-Hand Panel and right panel, Left-Hand Panel and right panel are separately fixed at base plate both sides, and Left-Hand Panel and right panel are arranged in parallel,
It is by first side limiting plate that a described step is adopted experimental box, Second Edge limiting plate, the 3rd boundary plates, the 4th boundary plates, one step is adopted rock drilling chamber top board and a left side, the closed casing that right panel forms, one step is adopted experimental box and is also comprised that a step adopts step gauge, in the 3rd boundary plates, be provided with some articles with left, the groove that right panel parallels, adopt experimental box inwall in a step and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove in the 3rd boundary plates and a step in the bottom that one step is adopted step gauge is set in parallel in a step and adopts experimental box inside, and can extract out by the groove in the 3rd boundary plates, wherein the lower end of first side limiting plate and the 4th boundary plates is arranged at respectively a step and adopts the both sides at top, rock drilling chamber, and form and a step adopt rock drilling chamber top board of the same size fall mine mouth, the angle of the 4th boundary plates can regulate, one step is adopted step gauge and is comprised some groups of difform plates, each group one step adopt step gauge respectively can with the 4th boundary plates corresponding matching of different angles,
It is by Second Edge limiting plate that described two steps are adopted experimental box, the 5th boundary plates, hexagon limiting plate, two steps are adopted rock drilling chamber top board and a left side, the closed casing that right panel forms, two steps are adopted experimental box and are also comprised that two steps adopt step gauge, on hexagon limiting plate, be provided with some articles with left, the groove that right panel parallels, adopt experimental box inwall in two steps and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove on hexagon limiting plate and two steps in the bottom that two steps are adopted step gauge is set in parallel in two steps and adopts experimental box inside, and can extract out by the groove on hexagon limiting plate, the lower end of the 5th boundary plates and Second Edge limiting plate is separately positioned on two steps adopts the both sides at top, rock drilling chamber, and form and two steps adopt rock drilling chamber top board of the same size fall mine mouth, wherein Second Edge limiting plate can be extracted out up, on left and right side panel, be provided with top board groove, described top board groove and a step are adopted rock drilling chamber top board and two steps to adopt rock drilling chamber top board corresponding.
A described step is adopted rock drilling chamber sidewall and two steps and is adopted rock drilling chamber sidewall and arrange respectively some groups, every group of breach spacing difference.
Described first side limiting plate, the 3rd boundary plates and the 5th boundary plates are fixed by the cutting of answering in contrast on left and right side panel respectively.
On described left and right side panel, be provided with the cutting of the different angles corresponding with the 4th boundary plates, the 4th boundary plates is fixed on left and right side panel by described cutting.
On described left and right side panel inwall, be provided with the track corresponding with Second Edge limiting plate, Second Edge limiting plate is arranged on left and right side panel by described track.
Described Second Edge limiting plate is divided into two parts, and two parts are hinged.
The lower end of described hexagon limiting plate is articulated with the upper end of the 5th boundary plates.
Described two steps are adopted rock drilling chamber sidewall and are adopted rock drilling chamber sidewall inner panel and two steps by two steps and adopt rock drilling chamber side plank and form, and wherein two steps are adopted rock drilling chamber sidewall inner panel and are replaced by not notched integral slab.
A described step is adopted rock drilling chamber sidewall and is adopted rock drilling chamber sidewall inner panel and a step by a step and adopt rock drilling chamber side plank and form, a described step is adopted rock drilling chamber sidewall inner panel and is also comprised baffle plate, it is identical that baffle plate and a step are adopted rock drilling chamber sidewall inner panel size, described left and right side panel is provided with baffle plate installing hole, and baffle plate installing hole is corresponding with baffle plate.
The using method of described gently inclined medium thick orebody back production physical simulation research device, comprises the following steps:
Step 1: carry out a step and adopt the experiment of physical simulation ore drawing,
A) indoor ore removal end is arranged on to a step and adopts rock drilling chamber side plank indentation, there;
B) with ore, one step being adopted to experimental box fills up, top board groove on left and right side panel is outwards extracted a step out and is adopted rock drilling chamber top board, when one step of every extraction is adopted the distance at step gauge interval, extract a step out and adopt explosion that step gauge carrys out the single step pitch of the simulated field ore deposit operation that falls, take out and adopt the ore of avalanche in experimental box from a step by ore removal chamber, the weight that records the ore gross weight of filling and the ore taking out from ore removal chamber, finally empties a step and adopts the ore in experimental box;
C) adjust the angle of the 4th boundary plates, change the corresponding step of angle therewith simultaneously and adopt step gauge, the angle of every adjustment one order four boundary plates, repeats the experiment of a step in b), until that each angle is all tested is complete;
D) extract an a part of step out and adopt step gauge, and it is identical to make a remaining step adopt step gauge spacing, thereby change the spacing that a step is adopted step gauge, the spacing that one step of every change is adopted step gauge, repeat the experiment of a step in c), all test complete until different steps is adopted step gauge spacing;
Thereby the spacing that e) regulates a step to adopt breach spacing on the sidewall of rock drilling chamber to change ore removal chamber, every change is the spacing of different ore removal chambers once, repeats one time steps d) in experiment, until all different ore removal chamber spacing are all tested complete;
F) add up the ratio of ore weight and the gross weight of the ore of filling of taking out from ore removal chamber in above step, be ore recovery ratio, go out a step and adopt the setup parameter of physical simulation ore drawing experiment as optimizing index Design taking ore recovery ratio;
Step 2: carry out two steps and adopt the experiment of physical simulation ore drawing,
A) indoor ore removal end is arranged on to two steps and adopts rock drilling chamber side plank indentation, there;
B) with ore, two steps being adopted to experimental box fills up, top board groove from left and right side panel is outwards extracted two steps out and is adopted rock drilling chamber top board, when two steps of every extraction are adopted the distance at step gauge interval, extract two steps out and adopt explosion that step gauge carrys out the single step pitch of the simulated field ore deposit operation that falls, take out and adopt the ore of avalanche in experimental box from two steps by ore removal chamber, the weight of the ore that records the gross weight of the ore of filling and take out from ore removal chamber, finally empties two steps and adopts the ore in experimental box;
C) extract out a part of two steps adopt step gauge and make remaining two steps adopt step gauge spacing identical, thereby change the spacing that two steps are adopted step gauge, the spacing that two steps of every change are adopted step gauge repeats the experiment of a step in b);
Thereby d) regulating a step to adopt rock drilling chamber sidewall and two steps adopts the spacing of the breach on the sidewall of rock drilling chamber and changes ore removal chamber spacing, the spacing of an ore removal chamber of every change, repeat the experiment of a step in c), until all different ore removal chamber spacing are all tested complete;
E) add up in above step the ratio of the gross weight of the weight of ore of taking out from ore removal chamber and the ore of filling, be ore recovery ratio, go out two steps and adopt physical simulation ore drawing experiment setup parameter as optimizing index Design taking ore recovery ratio;
Step 3: carry out ore dilution mechanism research physical simulation experiment,
A) step that taking-up one step is adopted in experimental box is adopted step gauge, and with tailings, one step is adopted to experimental box and fill up, two steps are adopted to experimental box ore fills up, extract Second Edge limiting plate out, on a left side, top board groove in right panel is outwards extracted two steps out and is adopted rock drilling chamber top board, when two steps of every extraction are adopted the distance at step gauge interval, extract two steps out and adopt step gauge, take out and adopt the ore of experimental box avalanche and the mixture of tailings from two steps in ore removal chamber, the mixture of ore of every taking-up and tailings, calculate the weight ratio of ore and ore tailings mixture, be product place values, in the time that product place value reaches cut-off grade value α, stop at ore removal chamber and outwards get the mixture of ore and tailings, calculate the now weight ratio from the ore weight of ore removal chamber taking-up and the ore of filling, it is ore recovery ratio, and calculate the tailings that taken out and the weight ratio of ore, it is ore dilution rate, then empty that a step is adopted experimental box and two steps are adopted experimental box,
B) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thereby change the spacing that two steps are adopted step gauge, the spacing that two steps of every change are adopted step gauge repeats experiment a) of step, all tests complete until two different steps are adopted step gauge spacing;
Change ore removal chamber spacing thereby c) regulate a step to adopt the breach spacing that rock drilling chamber sidewall and two steps adopt on the sidewall of rock drilling chamber, the spacing of an ore removal chamber of every change, repeats the experiment of a step in b), until different ore removal chamber spacing is all tested complete;
D) add up the ore recovery ratio in above step, go out the setup parameter of optimum ore dilution mechanism research physical simulation experiment taking ore recovery ratio and ore dilution rate as optimizing index Design.
Beneficial effect of the present invention: gently inclined medium thick orebody back production physical simulation research device of the present invention can be realized the analogue simulation of gently inclined medium thick orebody mining process, can realize the research of prose style free from parallelism flowing law, ore dilution mechanism and the optimization of room-characteritics parameter, for efficient, the economic production ore in similar mine provides technical support.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of gently inclined medium thick orebody back production physical simulation research device of the present invention;
Fig. 2 is the structural representation at the back side of Fig. 1;
Fig. 3 is the structural representation of the bottom of Fig. 1;
Fig. 4 is the cross-sectional view of Fig. 1.
Wherein: 1-base plate, 2-mono-step is adopted rock drilling chamber sidewall inner panel, and 3-mono-step is adopted rock drilling chamber side plank, 4-bis-steps are adopted rock drilling chamber sidewall inner panel, 5-bis-steps are adopted rock drilling chamber side plank, 6-Left-Hand Panel, 7-right panel, 8-the 3rd boundary plates, 9-the 4th boundary plates, 10-Second Edge limiting plate, 11-first side limiting plate, 12-mono-step is adopted step gauge, 13-the 5th boundary plates, 14-hexagon limiting plate, 15-bis-steps are adopted step gauge, 16-mono-step is adopted rock drilling chamber top board, 17-bis-steps are adopted rock drilling chamber top board, 18-hinge, 19-ore removal chamber, 20-breach, 21-baffle plate.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the present invention is described in further details, as shown in FIG. 1 to 3, a kind of gently inclined medium thick orebody back production physical simulation research device, comprises that base plate 1, a step are adopted experimental box and two steps are adopted experimental box;
Described base plate 1 upside is provided with that a step is adopted rock drilling chamber and two steps are adopted rock drilling chamber, one step is adopted rock drilling chamber and two steps and is adopted rock drilling chamber and be arranged in parallel, adopt on the sidewall that rock drilling chamber and two steps adopt rock drilling chamber and be respectively arranged with corresponding some groups of breach 20 in a step, the spacing of described breach 20 is identical, and this spacing can regulate, on base plate 1, be provided with the some group ore removal chambers 19 corresponding with breach 20, described ore removal chamber 19 is the square groove type that Open Side Down places, adopting top, rock drilling chamber in a step is provided with a step and adopts rock drilling chamber top board 16, adopting top, rock drilling chamber in two steps is provided with two steps and adopts rock drilling chamber top board 17, a described step adopts rock drilling chamber top board 16 and two steps are adopted the two-stage structure of rock drilling chamber top board 17 for separating in centre, described base plate 1 also comprises Left-Hand Panel 6 and right panel 7, Left-Hand Panel 6 and right panel 7 are separately fixed at base plate 1 both sides, and Left-Hand Panel 6 is arranged in parallel with right panel 7,
It is by first side limiting plate 11 that a described step is adopted experimental box, Second Edge limiting plate 10, the 3rd boundary plates 8, the 4th boundary plates 9, one step is adopted rock drilling chamber top board 16, the closed casing that Left-Hand Panel 6 and right panel 7 form, one step is adopted experimental box and is also comprised that a step adopts step gauge 12, in the 3rd boundary plates 8, be provided with the some articles of grooves that parallel with Left-Hand Panel 6 and right panel 7, adopt experimental box inwall in a step and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove in the 3rd boundary plates 8 and a step in the bottom that one step is adopted step gauge 12 is set in parallel in a step and adopts experimental box inside, and can extract out by the groove in the 3rd boundary plates 8, wherein the lower end of first side limiting plate 11 and the 4th boundary plates 9 is arranged at respectively a step and adopts the both sides at top, rock drilling chamber, and form and a step adopt rock drilling chamber top board 16 of the same size fall mine mouth, the angle of the 4th boundary plates 9 can regulate, one step is adopted step gauge 12 and is comprised some groups of difform plates, each group one step adopt step gauge 12 respectively can with the 4th boundary plates 9 corresponding matching of different angles,
It is by Second Edge limiting plate 10 that described two steps are adopted experimental box, the 5th boundary plates 13, hexagon limiting plate 14, two steps are adopted the closed casing that rock drilling chamber top board 17 and Left-Hand Panel 6 and right panel 7 form, two steps are adopted experimental box and are also comprised that two steps adopt step gauge 15, on hexagon limiting plate 14, be provided with the some articles of grooves that parallel with Left-Hand Panel 6 and right panel 7, adopt experimental box inwall in two steps and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove on hexagon limiting plate 14 and two steps in the bottom that two steps are adopted step gauge 15 is set in parallel in two steps and adopts experimental box inside, and can extract out by the groove on hexagon limiting plate 14, the lower end of the 5th boundary plates 13 and Second Edge limiting plate 10 is separately positioned on two steps adopts the both sides at top, rock drilling chamber, and form and two steps adopt rock drilling chamber top board 17 of the same size fall mine mouth, wherein Second Edge limiting plate 10 can be extracted out up,
In Left-Hand Panel 6 and right panel 7, be provided with top board groove, described top board groove and a step are adopted rock drilling chamber top board 16 and two steps to adopt rock drilling chamber top board 17 corresponding.
A described step is adopted rock drilling chamber sidewall and two steps, and to adopt rock drilling chamber sidewall be that the different step of many group breach 20 spacing is adopted rock drilling chamber sidewall and two steps are adopted rock drilling sidewall paneling, adopts rock drilling stone sidewall paneling and two steps to adopt rock drilling stone sidewall paneling be adjustable breach 20 spacing by changing a step of different breach 20 spacing.
Described first side limiting plate 11, the 3rd boundary plates 8 and the 5th boundary plates 13 are fixed by the cutting of answering in contrast in Left-Hand Panel 6 and right panel 7 respectively.
In described Left-Hand Panel 6 and right panel 7, be provided with the cutting of the different angles corresponding with the 4th boundary plates 9, initial angle is 30 ° in the present embodiment, in Left-Hand Panel 6 and right panel 7, have corresponding twice cutting every 5 °, until 60 °, the 4th boundary plates 9 is fixed in Left-Hand Panel 6 and right panel 7 by described cutting, by being fixed in different cuttings, can regulate the angle of the 4th boundary plates 9.
In described Left-Hand Panel 6 and right panel 7, be provided with the track corresponding with Second Edge limiting plate 10, Second Edge limiting plate 10 is arranged in Left-Hand Panel 6 and right panel 7 by described track.
Described Second Edge limiting plate 10 is divided into two parts, and two parts are hinged by hinge 18, and wherein part is above less, can come to adopt filler in experimental box to a step easily by the part of raising above.The lower end of described hexagon limiting plate 14 is articulated with the upper end of the 5th boundary plates 13, can adopt filler in experimental box to two steps by raising hexagon limiting plate 14.
Described two steps are adopted rock drilling chamber sidewall and are adopted rock drilling chamber sidewall inner panel 4 and two steps by two steps and adopt rock drilling chamber side plank 5 and form, wherein two steps are adopted rock drilling chamber sidewall inner panel 4 for not notched integral slab structure, the rear portion that when this integral slab structure can prevent from testing, ore is fallen into two steps and adopted experimental box.
A described step is adopted rock drilling chamber sidewall and is adopted rock drilling chamber sidewall inner panel 2 and a step by a step and adopt rock drilling chamber side plank 3 and form, described Left-Hand Panel 6 and right panel 7 are provided with baffle plate installing hole, it is corresponding that baffle plate installing hole and a step are adopted rock drilling chamber sidewall inner panel 4, a described step is adopted rock drilling chamber sidewall inner panel 2 and is also comprised baffle plate 21, it is identical that described baffle plate 21 and a step are adopted rock drilling chamber sidewall inner panel 2 sizes, can allow a step adopt rock drilling chamber sidewall inner panel 2 by insertion baffle plate and become integral slab structure, while preventing from testing, ore falls into a step and adopts other positions, experimental box bottom, the convenient ore from the interior taking-up avalanche in ore removal chamber 19.
The using method of described gently inclined medium thick orebody back production physical simulation research device, comprises the following steps:
Step 1: carry out a step and adopt the experiment of physical simulation ore drawing,
A) 19 the inners, ore removal chamber are arranged on to a step and adopt rock drilling chamber side plank 3 indentation, there;
B) with ore, one step being adopted to experimental box fills up, top board groove in Left-Hand Panel 6 and right panel 7 is outwards extracted a step out and is adopted rock drilling chamber top board 16, when one step of every extraction is adopted the distance at step gauge 12 intervals, extract a step out and adopt explosion that step gauge 12 carrys out the single step pitch of the simulated field ore deposit operation that falls, take out the ore of adopting avalanche in experimental box from a step by ore removal chamber 19, the weight of the ore gross weight that record is filled and the ore taking out from ore removal chamber 19, finally empties a step and adopts the ore in experimental box;
C) angle of adjustment the 4th boundary plates 9, in the present embodiment, the initial angle of the 4th boundary plates 9 is for to be 30 ° with level, change the corresponding step of angle therewith simultaneously and adopt step gauge 12, in the present embodiment 5 ° of every raisings have with in right panel 7 at Left-Hand Panel 6 together with corresponding cutting, 5 ° of the every raisings of the 4th boundary plates 9, repeat the experiment of a step in b), until the 4th boundary plates 9 angles and level are 60 °;
D) extract an a part of step out and adopt step gauge 12, and it is identical to make a remaining step adopt step gauge 12 spacing, thereby change the spacing that a step is adopted step gauge 12, in this step, first adopting step gauge 12 every a step extracts a step out and adopts step gauge 12, and repeat experiment c) of step, then adopt step gauge 12 every a step and extract again a step out and adopt step gauge 12, and repeat experiment c) of step;
E) by changing, different steps is adopted rock drilling chamber sidewall and two steps are adopted rock drilling chamber sidewall, the breach spacing and two steps that regulate a step to adopt on the sidewall of rock drilling chamber are adopted the breach spacing on the sidewall of rock drilling chamber, thereby change the spacing of ore removal chamber 19, every change is the spacing of different ore removal chambers 19 once, repeat one time steps d) in experiment, in the present embodiment, need three groups of different ore removal chamber 19 spacing to test, thereby will be according to these three times different ore removal chamber 19 spacing steps d in triplicate) experiment;
F) add up the ratio of the ore weight of taking out from ore removal chamber 19 in above step and the gross weight of the ore of filling, be ore recovery ratio, as going out a step, optimization index Design adopts the optimum setup parameter of experiment taking ore recovery ratio, design a step and adopt the actual conditions that the object of the optimum setup parameter of experiment is simulation scene, mine, and design and can reach economic maximized mining mode;
Step 2: carry out two steps and adopt the experiment of physical simulation ore drawing,
A) indentation, there that 19 the inners, ore removal chamber are arranged on to two steps adopt rock drilling chamber side plank 5;
B) with ore, two steps being adopted to experimental box fills up, top board groove from Left-Hand Panel 6 and right panel 7 is outwards extracted two steps out and is adopted rock drilling chamber top board 17, when two steps of every extraction are adopted the distance at step gauge 15 intervals, extract two steps out and adopt explosion that step gauge 15 carrys out the single step pitch of the simulated field ore deposit operation that falls, take out the ore of adopting avalanche in experimental box from two steps by ore removal chamber 19, the weight of the gross weight of the ore that record is filled and the ore taking out from ore removal chamber 19, finally empties two steps and adopts the ore in experimental box;
C) extract a part of two steps out and adopt step gauge 15, and it is identical to make remaining two steps adopt step gauge 15 spacing, thereby change the spacing that two steps are adopted step gauge 15, in the present embodiment, first adopting step gauge 15 every two steps extracts two steps out and adopts step gauge 15, and repeat experiment b) of step, then adopt step gauge 15 every two steps and extract two two steps out and adopt step gauge 15, and repeat experiment b) of step;
D) adopt rock drilling sidewall paneling by changing different a step ability rock drilling sidewall paneling and two steps, the breach spacing and two steps that regulate a step to adopt on the sidewall of rock drilling chamber are adopted the breach spacing on rock drilling stone sidewall, thereby change the spacing of ore removal chamber 19, every change is the spacing of different ore removal chambers 19 once, repeat the experiment of a step in c), in the present embodiment, need three groups of different ore removal chamber 19 spacing to test, one step of every replacing adopts rock drilling chamber sidewall and two steps are adopted experiment c) of step of rock drilling chamber sidewall repetition;
E) add up the ratio of the ore weight of taking out from ore removal chamber 19 in above step and the gross weight of the ore of filling, be ore recovery ratio, as going out two steps, optimization index Design adopts the optimum setup parameter of experiment taking ore recovery ratio, design two steps and adopt the actual conditions that the object of the optimum setting parameter of experiment is simulation scene, mine, and design and can reach economic maximized mining mode;
Step 3: carry out ore dilution mechanism research physical simulation experiment,
A) step that taking-up one step is adopted in experimental box is adopted step gauge 12, and with tailings, one step is adopted to experimental box and fill up, two steps are adopted to experimental box ore fills up, extract Second Edge limiting plate 10 out by the track on Left-Hand Panel 6 and right panel 7 inwalls, top board groove in Left-Hand Panel 6 and right panel 7 is outwards extracted two steps out and is adopted rock drilling chamber top board 17, when two steps of every extraction are adopted the distance at step gauge 15 intervals, extract two steps out and adopt step gauge 15, take out from two steps and adopt the ore of experimental box avalanche and the mixture of tailings in ore removal chamber 19, the mixture of ore of every taking-up and tailings, calculate the weight ratio of ore and ore tailings mixture, be product place values, in the time that product place value reaches cut-off grade value α, stop at ore removal chamber 19 and outwards get the mixture of ore and tailings, the weight ratio of the ore weight that calculating is now taken out from ore removal chamber 19 and the ore of filling, it is ore recovery ratio, and calculate the tailings that taken out and the weight ratio of ore, it is ore dilution rate, then empty that a step is adopted experimental box and two steps are adopted experimental box,
B) extract a part of two steps out and adopt step gauge 15, and it is identical to make remaining two steps adopt step gauge 15 spacing, thereby change the spacing that two steps are adopted step gauge 15, in the present embodiment, first adopting step gauge 15 every two steps extracts two steps out and adopts step gauge 15, and repeat experiment b) of step, then adopt step gauge 15 every two steps and extract two two steps out and adopt step gauge 15, and repeat experiment c) of step;
Thereby c) regulate a step to adopt breach spacing on the sidewall of rock drilling chamber and two steps to adopt breach spacing on rock drilling stone sidewall and change the spacing of ore removal chamber 19, every change is the spacing of different ore removal chambers 19 once, repeat the experiment of a step in b), in the present embodiment, need three groups of different ore removal chamber spacing to test, thereby according to these three times different ore removal chamber spacing step experiments b) in triplicate;
D) add up the ore recovery ratio in above step, as going out two optimum steps, optimization index Design adopts experiment setup parameter taking ore recovery ratio and ore dilution rate, the important indicator that wherein ore recovery ratio and ore dilution rate are mine economic profit, the present invention can be just to on-the-spot mining parameter before mining, adopt the mining parameters such as the lateral opening angle of lower wall and simulate as ore caving interval, a step, the exploitation economic benefit of gently inclined medium thick orebody is had to larger help.
Claims (10)
1. a gently inclined medium thick orebody back production physical simulation research device, is characterized in that: comprise that base plate, a step are adopted experimental box and two steps are adopted experimental box;
Described base plate upside is provided with that a step is adopted rock drilling chamber and two steps are adopted rock drilling chamber, one step is adopted rock drilling chamber and two steps and is adopted rock drilling chamber and be arranged in parallel, adopt on the sidewall that rock drilling chamber and two steps adopt rock drilling chamber and be respectively arranged with some groups of corresponding breach in a step, the spacing of described breach is identical, and this spacing can regulate, on base plate, be provided with the some group ore removal chambers corresponding with breach, described ore removal chamber is the square groove type that Open Side Down places, adopting top, rock drilling chamber in a step is provided with a step and adopts rock drilling chamber top board, adopting top, rock drilling chamber in two steps is provided with two steps and adopts rock drilling chamber top board, a described step is adopted rock drilling chamber top board and two steps, and to adopt rock drilling chamber top board be the two-stage structure separating in centre, described base plate also comprises Left-Hand Panel and right panel, Left-Hand Panel and right panel are separately fixed at base plate both sides, and Left-Hand Panel and right panel are arranged in parallel,
It is by first side limiting plate that a described step is adopted experimental box, Second Edge limiting plate, the 3rd boundary plates, the 4th boundary plates, one step is adopted rock drilling chamber top board and a left side, the closed casing that right panel forms, one step is adopted experimental box and is also comprised that a step adopts step gauge, in the 3rd boundary plates, be provided with some articles with left, the groove that right panel parallels, adopt experimental box inwall in a step and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove in the 3rd boundary plates and a step in the bottom that one step is adopted step gauge is set in parallel in a step and adopts experimental box inside, and can extract out by the groove in the 3rd boundary plates, wherein the lower end of first side limiting plate and the 4th boundary plates is arranged at respectively a step and adopts the both sides at top, rock drilling chamber, and form and a step adopt rock drilling chamber top board of the same size fall mine mouth, the angle of the 4th boundary plates can regulate, one step is adopted step gauge and is comprised some groups of difform plates, each group one step adopt step gauge respectively can with the 4th boundary plates corresponding matching of different angles,
It is by Second Edge limiting plate that described two steps are adopted experimental box, the 5th boundary plates, hexagon limiting plate, two steps are adopted rock drilling chamber top board and a left side, the closed casing that right panel forms, two steps are adopted experimental box and are also comprised that two steps adopt step gauge, on hexagon limiting plate, be provided with some articles with left, the groove that right panel parallels, adopt experimental box inwall in two steps and be provided with the cutting corresponding with described groove, the cutting that experimental box inwall is adopted by the groove on hexagon limiting plate and two steps in the bottom that two steps are adopted step gauge is set in parallel in two steps and adopts experimental box inside, and can extract out by the groove on hexagon limiting plate, the lower end of the 5th boundary plates and Second Edge limiting plate is separately positioned on two steps adopts the both sides at top, rock drilling chamber, and form and two steps adopt rock drilling chamber top board of the same size fall mine mouth, wherein Second Edge limiting plate can be extracted out up, on left and right side panel, be provided with top board groove, described top board groove and a step are adopted rock drilling chamber top board and two steps to adopt rock drilling chamber top board corresponding.
2. gently inclined medium thick orebody back production physical simulation research device according to claim 1, is characterized in that: a described step is adopted rock drilling chamber sidewall and two steps and adopted rock drilling chamber sidewall and arrange respectively some groups, every group of breach spacing difference.
3. gently inclined medium thick orebody back production physical simulation research device according to claim 1, is characterized in that: described first side limiting plate, the 3rd boundary plates and the 5th boundary plates are fixed by the cutting of answering in contrast on left and right side panel respectively.
4. gently inclined medium thick orebody back production physical simulation research device according to claim 1, it is characterized in that: on described left and right side panel, be provided with the cutting of the different angles corresponding with the 4th boundary plates, the 4th boundary plates is fixed on left and right side panel by described cutting.
5. gently inclined medium thick orebody back production physical simulation research device according to claim 1, it is characterized in that: on described left and right side panel inwall, be provided with the track corresponding with Second Edge limiting plate, Second Edge limiting plate is arranged on left and right side panel by described track.
6. gently inclined medium thick orebody back production physical simulation research device according to claim 1, is characterized in that: described Second Edge limiting plate is divided into two parts, and two parts are hinged.
7. gently inclined medium thick orebody back production physical simulation research device according to claim 1, is characterized in that: the lower end of described hexagon limiting plate is articulated with the upper end of the 5th boundary plates.
8. gently inclined medium thick orebody back production physical simulation research device according to claim 1, it is characterized in that: described two steps are adopted rock drilling chamber sidewall and adopted rock drilling chamber sidewall inner panel and two steps by two steps and adopt rock drilling chamber side plank and form, and wherein two steps are adopted rock drilling chamber sidewall inner panel and are replaced by not notched integral slab.
9. gently inclined medium thick orebody back production physical simulation research device according to claim 1, it is characterized in that: a described step is adopted rock drilling chamber sidewall and adopted rock drilling chamber sidewall inner panel and a step by a step and adopt rock drilling chamber side plank and form, a described step is adopted rock drilling chamber sidewall inner panel and is also comprised baffle plate, it is identical that baffle plate and a step are adopted rock drilling chamber sidewall inner panel size, described left and right side panel is provided with baffle plate installing hole, and baffle plate installing hole is corresponding with baffle plate.
10. the using method of gently inclined medium thick orebody back production physical simulation research device claimed in claim 1, is characterized in that: comprise the following steps:
Step 1: carry out a step and adopt the experiment of physical simulation ore drawing,
A) indoor ore removal end is arranged on to a step and adopts rock drilling chamber side plank indentation, there;
B) with ore, one step being adopted to experimental box fills up, top board groove on left and right side panel is outwards extracted a step out and is adopted rock drilling chamber top board, when one step of every extraction is adopted the distance at step gauge interval, extract a step out and adopt explosion that step gauge carrys out the single step pitch of the simulated field ore deposit operation that falls, take out and adopt the ore of avalanche in experimental box from a step by ore removal chamber, the weight that records the ore gross weight of filling and the ore taking out from ore removal chamber, finally empties a step and adopts the ore in experimental box;
C) adjust the angle of the 4th boundary plates, change the corresponding step of angle therewith simultaneously and adopt step gauge, the angle of every adjustment one order four boundary plates, repeats the experiment of a step in b), until that each angle is all tested is complete;
D) extract an a part of step out and adopt step gauge, and it is identical to make a remaining step adopt step gauge spacing, thereby change the spacing that a step is adopted step gauge, the spacing that one step of every change is adopted step gauge, repeat the experiment of a step in c), all test complete until different steps is adopted step gauge spacing;
Thereby the spacing that e) regulates a step to adopt breach spacing on the sidewall of rock drilling chamber to change ore removal chamber, every change is the spacing of different ore removal chambers once, repeats one time steps d) in experiment, until all different ore removal chamber spacing are all tested complete;
F) add up the ratio of ore weight and the gross weight of the ore of filling of taking out from ore removal chamber in above step, be ore recovery ratio, go out a step and adopt the setup parameter of physical simulation ore drawing experiment as optimizing index Design taking ore recovery ratio;
Step 2: carry out two steps and adopt the experiment of physical simulation ore drawing,
A) indoor ore removal end is arranged on to two steps and adopts rock drilling chamber side plank indentation, there;
B) with ore, two steps being adopted to experimental box fills up, top board groove from left and right side panel is outwards extracted two steps out and is adopted rock drilling chamber top board, when two steps of every extraction are adopted the distance at step gauge interval, extract two steps out and adopt explosion that step gauge carrys out the single step pitch of the simulated field ore deposit operation that falls, take out and adopt the ore of avalanche in experimental box from two steps by ore removal chamber, the weight of the ore that records the gross weight of the ore of filling and take out from ore removal chamber, finally empties two steps and adopts the ore in experimental box;
C) extract out a part of two steps adopt step gauge and make remaining two steps adopt step gauge spacing identical, thereby change the spacing that two steps are adopted step gauge, the spacing that two steps of every change are adopted step gauge repeats the experiment of a step in b);
Thereby d) regulating a step to adopt rock drilling chamber sidewall and two steps adopts the spacing of the breach on the sidewall of rock drilling chamber and changes ore removal chamber spacing, the spacing of an ore removal chamber of every change, repeat the experiment of a step in c), until all different ore removal chamber spacing are all tested complete;
E) add up in above step the ratio of the gross weight of the weight of ore of taking out from ore removal chamber and the ore of filling, be ore recovery ratio, go out two steps and adopt physical simulation ore drawing experiment setup parameter as optimizing index Design taking ore recovery ratio;
Step 3: carry out ore dilution mechanism research physical simulation experiment,
A) step that taking-up one step is adopted in experimental box is adopted step gauge, and with tailings, one step is adopted to experimental box and fill up, two steps are adopted to experimental box ore fills up, extract Second Edge limiting plate out, on a left side, top board groove in right panel is outwards extracted two steps out and is adopted rock drilling chamber top board, when two steps of every extraction are adopted the distance at step gauge interval, extract two steps out and adopt step gauge, take out and adopt the ore of experimental box avalanche and the mixture of tailings from two steps in ore removal chamber, the mixture of ore of every taking-up and tailings, calculate the weight ratio of ore and ore tailings mixture, be product place values, in the time that product place value reaches cut-off grade value α, stop at ore removal chamber and outwards get the mixture of ore and tailings, calculate the now weight ratio from the ore weight of ore removal chamber taking-up and the ore of filling, it is ore recovery ratio, and calculate the tailings that taken out and the weight ratio of ore, it is ore dilution rate, then empty that a step is adopted experimental box and two steps are adopted experimental box,
B) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thereby change the spacing that two steps are adopted step gauge, the spacing that two steps of every change are adopted step gauge repeats experiment a) of step, all tests complete until two different steps are adopted step gauge spacing;
Change ore removal chamber spacing thereby c) regulate a step to adopt the breach spacing that rock drilling chamber sidewall and two steps adopt on the sidewall of rock drilling chamber, the spacing of an ore removal chamber of every change, repeats the experiment of a step in b), until different ore removal chamber spacing is all tested complete;
D) add up the ore recovery ratio in above step, go out the setup parameter of optimum ore dilution mechanism research physical simulation experiment taking ore recovery ratio and ore dilution rate as optimizing index Design.
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