CN104141494B - A kind of gently inclined medium thick orebody back production physics emulation research device and using method thereof - Google Patents
A kind of gently inclined medium thick orebody back production physics emulation research device and using method thereof Download PDFInfo
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Abstract
A kind of gently inclined medium thick orebody back production physics emulation research device and using method thereof, belong to mining engineering technical field. The inventive system comprises base plate, a step adopts experimental box and two steps adopt experimental box, and base plate is provided with out room, ore deposit, and the bottom that a step adopts experimental box and two steps adopt experimental box is provided with out mine mouth. One step adopts experimental box and two steps adopt going out ore deposit step pitch, going out room, ore deposit spacing and the 4th boundary plates angle can adjust of experimental box. Its using method comprise carry out a step adopt physics emulation put ore deposit experiment, two steps adopt physics emulation put ore deposit experiment and row ore slag cleaning mechanism research physical simulation experiment, by adjusting ore deposit step pitch, go out room, ore deposit spacing and the 4th boundary plates angle can simulate the mining at scene, mine, and design optimum mining mode. The present invention can realize the emulation simulation of gently inclined medium thick orebody mining process, for similar mine back production ore efficient, economic provides technical support.
Description
Technical field:
The invention belongs to mining engineering technical field, particularly relate to a kind of gently inclined medium thick orebody back production physics emulation research device and using method thereof.
Background technology:
Along with national economy is lasting, stable, fast-developing, the demand of mineral products is constantly increased by country. China's metalliferous deposit lean ore is many, rich ore is few, small-sized ore deposit is many, the requirement of the resources characteristic that ore deposit large-scale, super-huge is few and development of the national economy high speed development is far from suitable, and ore deposit, shallow portion, rich ore are fewer and feweri in addition, and large quantities of mine progressively proceeds to deep mining, mining depth constantly increases, field 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, it is to increase resource recoverable amount, while marching to deep orebody exploitation, advanced mining methods and mining equipment also should be adopted, safe, efficient, economic back production uneasily mining orebody.
Gently inclined medium thick orebody is acknowledged as uneasily mining orebody at present, and owing to inclination angle is delayed, avalanche ore can not completely be borrowed and release from focusing on bottom, and lower wall loss amount is relatively big, and when using Electric rake haulage in slusher runner, flow by gravity electric scraper discharging efficiency is very low; In ore body thick, as digging chassis go out ore deposit funnel, adopt and cut than greatly, efficiency is low, ore production cost height; Ore-rock stability is poor, cannot carry out extensive operation, cause throughput low. Major part gently inclined medium thick orebody mine many employings stratified filling method and admission passage filling method exploit this type of ore body both at home and abroad at present. Throughput is low is the greatest problem run in this kind of orebody mining process.
For improving gently inclined medium thick orebody throughput, domestic and international expert proposes and segmentation mineral building is divided into upper and lower two parts, and substep exploitation, first adopts bottom mineral building, until the exploitation of bottom mineral building complete and after filling, then the actual mining technology scheme of back production top mineral building. Simultaneously construct in arteries and veins in each segmentation, outer two the rock drilling gallerys of arteries and veins, be responsible for the rock drilling of top mineral building and bottom mineral building respectively and go out ore deposit. This method application medium-length hole ore blast, supporting scraper goes out ore deposit, substantially increase the throughput in mine, but before substep exploitation, need research gently inclined medium thick orebody ore prose style free from parallelism movement law and mine loss and dilution mechanism in high-efficiency mining process, optimize the structural parameter of corresponding stope, comprise adopt lower wall limit Kong Jiao, ore caving interval, lower wall go out ore deposit drift interval and put slag cleaning mechanism research and the structural parameter of the isoparametric ore of ore deposit mode. And present stage does not have the reasonable plan studied for the correlation parameter of substep exploitation method of complete set, traditional mining simulation scheme also is difficult to be applicable to the substep exploitation method of middle thickness orebody.
Summary of the invention:
For solving prior art Problems existing, the present invention proposes a kind of structure simply, and easy to operate, cost is low, and similarity degree is high, for gently inclined medium thick orebody back production physics emulation research device and the using method thereof of substep exploitation method.
For achieving the above object, the present invention adopts following technical scheme: a kind of gently inclined medium thick orebody back production physics emulation research device, comprises base plate, a step adopts experimental box and two steps adopt experimental box;
It is provided with a step on the upside of described base plate and adopts rock drilling room and two steps adopt rock drilling room, one step is adopted rock drilling room and is adopted the parallel setting in rock drilling room with two steps, rock drilling room is adopted and two steps are adopted and are respectively arranged with some groups of corresponding breach on the sidewall of rock drilling room in a step, the spacing of described breach is identical, and this spacing can regulate, base plate is provided with some group corresponding with breach and goes out room, ore deposit, described go out room, the ore deposit square grooved that is that Open Side Down and places, adopt top, rock drilling room in a step to be provided with a step and adopt rock drilling room top board, adopt top, rock drilling room in two steps to be provided with two steps and adopt rock drilling room top board, a described step adopt rock drilling room top board and two steps to adopt rock drilling room top board be the two-stage structure separated in centre, described base plate also comprises Left-Hand Panel and right side panel, Left-Hand Panel and right side panel are separately fixed at base plate both sides, and Left-Hand Panel and right side panel arranged in parallel,
It is by the first boundary plates that a described step adopts experimental box, the second boundary plate, 3rd boundary plates, 4th boundary plates, one step adopts rock drilling room top board and a left side, the closed casing that right side panel is formed, one step is adopted experimental box and is also comprised a step and adopt step gauge, 3rd boundary plates is provided with some articles with left, the groove that right side panel is mutually parallel, adopt experimental box inwall in a step and it is provided with the cutting corresponding with described groove, the bottom that one step adopts step gauge is set in parallel in a step by the cutting that the groove in the 3rd boundary plates and a step adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 3rd boundary plates, wherein the lower end of the first boundary plates and the 4th boundary plates is arranged at the both sides that a step adopts top, rock drilling room respectively, and formed with a step adopt rock drilling room top board of the same size fall mine mouth, the angle of the 4th boundary plates can regulate, one step adopts the plate that step gauge comprises some groups of different shapeies, each group one step adopt step gauge respectively can with the 4th boundary plates corresponding matching of different angles,
It is by the second boundary plate that described two steps adopt experimental box, 5th boundary plates, 6th boundary plates, two steps adopt rock drilling room top board and a left side, the closed casing that right side panel is formed, two steps are adopted experimental box and are also comprised two steps and adopt step gauge, 6th boundary plates is provided with some articles with left, the groove that right side panel is mutually parallel, adopt experimental box inwall in two steps and it is provided with the cutting corresponding with described groove, the bottom that two steps adopt step gauge is set in parallel in two steps by the cutting that the groove in the 6th boundary plates and two steps adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 6th boundary plates, the lower end of the 5th boundary plates and the second boundary plate is separately positioned on the both sides that two steps adopt top, rock drilling room, and formed with two steps adopt rock drilling room top board of the same size fall mine mouth, wherein the second boundary plate can be extracted out in top, left and right side panel is provided with top board groove, described top board groove adopt rock drilling room top board with a step and two steps to adopt rock drilling room top board corresponding.
A described step adopts rock drilling room sidewall and two steps are adopted rock drilling room sidewall and arranged some groups respectively, often organizes breach spacing different.
Described first boundary plates, the 3rd boundary plates and the 5th boundary plates are fixed by the cutting corresponded on left and right side panel respectively.
The cutting being provided with the different angles corresponding with the 4th boundary plates on described left and right side panel, the 4th boundary plates is fixed on left and right side panel by described cutting.
Being provided with the track corresponding with the second boundary plate on described left and right side panel inwall, the second boundary plate is arranged on left and right side panel by described track.
Described the second boundary plate is divided into two portions, and two portions are hinged.
The lower end of described 6th boundary plates is articulated with the upper end of the 5th boundary plates.
Described two steps are adopted rock drilling room sidewall and are adopted plate and two steps in the sidewall of rock drilling room by two steps and adopt rock drilling room sidewall outside plate and form, and wherein two steps adopt plate in the sidewall of rock drilling room is the integral slab of not band breach.
A described step is adopted rock drilling room sidewall and is adopted plate and a step in the sidewall of rock drilling room by a step and adopt rock drilling room sidewall outside plate and form, a described step is adopted plate in the sidewall of rock drilling room and is had baffle plate, it is identical that baffle plate adopts plate size in the sidewall of rock drilling room with a step, described left and right side panel is provided with baffle plate open holes, and baffle plate open holes is corresponding with baffle plate.
The using method of described gently inclined medium thick orebody back production physics emulation research device, comprises the following steps:
Step one: carry out a step adopt physics emulation put ore deposit experiment,
A) the indoor end in ore deposit will be gone out be arranged on a step and adopt rock drilling room sidewall outside plate indentation, there;
B) with ore, one step is adopted experimental box to fill up, top board groove on left and right side panel is outwards extracted a step out and is adopted rock drilling room top board, while often extracting a step out and adopt the distance at step gauge interval, extract one piece of one step out adopt the explosion that step gauge carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from a step is taken out by going out room, ore deposit, the ore gross weight that record is filled is with from the weight going out the ore that room, ore deposit is taken out, finally an empty clearly step adopts the ore in experimental box;
C) adjust the 4th boundary plates angle, change a step corresponding with this angle simultaneously and adopt step gauge, often adjust one order four boundary plates angle, repeat a step b) in experiment, until each angle is all tested 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, thus change the spacing that a step adopts step gauge, often change one step adopts the spacing of step gauge, repeat a step c) in experiment, all test complete until different steps adopts step gauge spacing;
E) regulate a step to adopt the breach spacing on the sidewall of rock drilling room thus change the spacing room, ore deposit, often change once the different spacing going out room, ore deposit, repeat a steps d) in experiment, until all different room, ore deposit spacing that goes out all are tested complete;
F) add up in above step from go out room, ore deposit take out ore weight and the ratio of the gross weight of the ore of filling, be ore recovery ratio, taking ore recovery ratio be optimizing index design a step adopt physics emulation put ore deposit experiment setting parameter;
Step 2: carry out two steps adopt physics emulation put ore deposit experiment,
A) the indoor end in ore deposit will be gone out be arranged on two steps and adopt rock drilling room sidewall outside plate indentation, there;
B) with ore, two steps are adopted experimental box to fill up, outwards extract two steps out from the top board groove left and right side panel and adopt rock drilling room top board, while often extracting two steps out and adopt the distance at step gauge interval, extract one piece of two step out adopt the explosion that step gauge carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from two steps is taken out by going out room, ore deposit, the gross weight of the ore that record is filled is with from the weight going out the ore that room, ore deposit is taken out, finally empty clearly two steps adopt the ore in experimental box;
C) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thus changes the spacing that two steps adopt step gauge, often changes the spacing that two step adopt step gauge and repeats a step b) in experiment;
D) step is regulated to adopt rock drilling room sidewall and two steps are adopted the spacing of the breach on the sidewall of rock drilling room thus changed and room, ore deposit spacing, often change the spacing once going out room, ore deposit, repeat a step c) in experiment, until all different room, ore deposit spacing that goes out all are tested complete;
E) add up in above step from go out room, ore deposit take out the weight of ore and the ratio of the gross weight of the ore of filling, be ore recovery ratio, taking ore recovery ratio be optimizing index design two steps adopt physics emulation put ore deposit experiment setting parameter;
Step 3: carry out ore slag cleaning mechanism research physical simulation experiment,
A) take out the step that a step adopts in experimental box and adopt step gauge, and with tailings, one step is adopted experimental box and fill up, two steps are adopted experimental box ore fill up, extract the second boundary plate out, on a left side, top board groove on the panel of right side is outwards extracted two steps out and is adopted rock drilling room top board, while often extracting two steps out and adopt the distance at step gauge interval, extract one piece of two step out adopt step gauge, go out room, ore deposit take out adopt the ore of experimental box avalanche and the mixture of tailings from two steps, often take out the mixture of an ore and tailings, calculate the weight ratio of an ore and ore tailings mixture, i.e. product place value, when product place value reaches cut-off grade value ��, stop at out the mixture that ore and tailings are outwards got in room, ore deposit, calculate now from the weight ratio of the ore going out ore weight and the filling taken out room, ore deposit, i.e. ore recovery ratio, and calculate the weight ratio of tailings and the ore taken out, i.e. ore dilution ratio, then an empty clearly step adopts experimental box and two steps adopt experimental box,
B) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thus change the spacing that two steps adopt step gauge, often change the spacing that two step adopt step gauge and repeat experiment a) of step, all test complete until two different steps adopt step gauge spacing;
C) regulate a step to adopt rock drilling room sidewall and two steps are adopted the breach spacing on the sidewall of rock drilling room thus changed and room, ore deposit spacing, often change the spacing once going out room, ore deposit, repeat a step b) in experiment, until different room, the ore deposit spacing that goes out all is tested complete;
D) add up the ore recovery ratio in above step, design the setting parameter of optimum ore slag cleaning mechanism research physical simulation experiment by optimizing index of ore recovery ratio and ore dilution ratio.
The useful effect of the present invention: the gently inclined medium thick orebody back production physics emulation research device of the present invention can realize the emulation simulation of gently inclined medium thick orebody mining process, prose style free from parallelism flowing law, the research of ore slag cleaning mechanism and the optimization of room-characteritics parameter can be realized, for similar mine back production ore efficient, economic provides technical support.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the gently inclined medium thick orebody back production physics emulation 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 adopts plate in the sidewall of rock drilling room, and 3-mono-step adopts rock drilling room sidewall outside plate, 4-bis-step adopts plate in the sidewall of rock drilling room, 5-bis-step adopts rock drilling room sidewall outside plate, 6-Left-Hand Panel, panel on the right side of 7-, 8-the 3rd boundary plates, 9-the 4th boundary plates, 10-the second boundary plate, 11-first boundary plates, 12-mono-step adopts step gauge, 13-the 5th boundary plates, 14-the 6th boundary plates, 15-bis-step adopts step gauge, 16-mono-step adopts rock drilling room top board, 17-bis-step adopts rock drilling room top board, 18-hinge, and 19-goes out room, ore deposit, 20-breach, 21-baffle plate.
Embodiment:
The present invention being described in further details below in conjunction with drawings and Examples, as shown in FIG. 1 to 3, a kind of gently inclined medium thick orebody back production physics emulation research device, comprises base plate 1, step and adopts experimental box and two steps adopt experimental box;
It is provided with a step on the upside of described base plate 1 and adopts rock drilling room and two steps adopt rock drilling room, one step is adopted rock drilling room and is adopted the parallel setting in rock drilling room with two steps, rock drilling room is adopted and two steps are adopted and are respectively arranged with corresponding some groups of breach 20 on the sidewall of rock drilling room in a step, the spacing of described breach 20 is identical, and this spacing can regulate, base plate 1 is provided with some group corresponding with breach 20 and goes out room, ore deposit 19, described go out room, the ore deposit 19 square grooved that is that Open Side Down and places, adopt top, rock drilling room in a step to be provided with a step and adopt rock drilling room top board 16, adopt top, rock drilling room in two steps to be provided with two steps and adopt rock drilling room top board 17, a described step adopt rock drilling room top board 16 and two steps to adopt rock drilling room top board 17 be the two-stage structure separated in centre, described base plate 1 also comprises Left-Hand Panel 6 and right side panel 7, Left-Hand Panel 6 and right side panel 7 are separately fixed at base plate 1 both sides, and Left-Hand Panel 6 is arranged in parallel with right side panel 7,
It is by the first boundary plates 11 that a described step adopts experimental box, the second boundary plate 10, 3rd boundary plates 8, 4th boundary plates 9, one step adopts rock drilling room top board 16, the closed casing that Left-Hand Panel 6 and right side panel 7 are formed, one step is adopted experimental box and is also comprised a step and adopt step gauge 12, 3rd boundary plates 8 is provided with the some articles of grooves mutually parallel with right side panel 7 with Left-Hand Panel 6, adopt experimental box inwall in a step and it is provided with the cutting corresponding with described groove, the bottom that one step adopts step gauge 12 is set in parallel in a step by the cutting that the groove in the 3rd boundary plates 8 and a step adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 3rd boundary plates 8, wherein the lower end of the first boundary plates 11 and the 4th boundary plates 9 is arranged at the both sides that a step adopts top, rock drilling room respectively, and formed with a step adopt rock drilling room top board 16 of the same size fall mine mouth, the angle of the 4th boundary plates 9 can regulate, one step adopts the plate that step gauge 12 comprises some groups of different shapeies, each group one step adopt step gauge 12 respectively can with the 4th boundary plates 9 corresponding matching of different angles,
It is by the second boundary plate 10 that described two steps adopt experimental box, 5th boundary plates 13, 6th boundary plates 14, two steps adopt the closed casing that rock drilling room top board 17 and Left-Hand Panel 6 and right side panel 7 are formed, two steps are adopted experimental box and are also comprised two steps and adopt step gauge 15, 6th boundary plates 14 is provided with the some articles of grooves mutually parallel with right side panel 7 with Left-Hand Panel 6, adopt experimental box inwall in two steps and it is provided with the cutting corresponding with described groove, the bottom that two steps adopt step gauge 15 is set in parallel in two steps by the cutting that the groove in the 6th boundary plates 14 and two steps adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 6th boundary plates 14, the lower end of the 5th boundary plates 13 and the second boundary plate 10 is separately positioned on the both sides that two steps adopt top, rock drilling room, and formed with two steps adopt rock drilling room top board 17 of the same size fall mine mouth, wherein the second boundary plate 10 can be extracted out in top,
Left-Hand Panel 6 and right side panel 7 are provided with top board groove, described top board groove adopt rock drilling room top board 16 with a step and two steps to adopt rock drilling room top board 17 corresponding.
A described step adopts rock drilling room sidewall, and adopt rock drilling room sidewall with two steps be that the step that many group breach 20 spacing are different adopts rock drilling chamber sidewall and two steps adopt rock drilling sidewall, by changing a step of different breach 20 spacing and adopt rock drilling stone sidewall and two steps adopt rock drilling stone sidewall and adjustable breach 20 spacing.
Described first boundary plates 11, the 3rd boundary plates 8 and the 5th boundary plates 13 are fixed by the cutting corresponded on Left-Hand Panel 6 and right side panel 7 respectively.
Described Left-Hand Panel 6 and right side panel 7 are provided with the cutting of the different angles corresponding with the 4th boundary plates 9, initial angle is 30 �� in the present embodiment, on Left-Hand Panel 6 and right side panel 7, corresponding twice cutting is had every 5 ��, until 60 ��, 4th boundary plates 9 is fixed on Left-Hand Panel 6 and right side panel 7 by described cutting, by being fixed in different cuttings, it is possible to regulate the angle of the 4th boundary plates 9.
Being provided with the track corresponding with the second boundary plate 10 on described Left-Hand Panel 6 and right side panel 7, the second boundary plate 10 is arranged on by described track on Left-Hand Panel 6 and right side panel 7.
Described the second boundary plate 10 is divided into two portions, and two portions are hinged by hinge 18, and the part above wherein is less, it is possible to adopt filler in experimental box to a step easily by raising part above. The lower end of described 6th boundary plates 14 is articulated with the upper end of the 5th boundary plates 13, it is possible to adopt filler in experimental box by raising the 6th boundary plates 14 to two steps.
Described two steps are adopted rock drilling room sidewall and are adopted plate 4 and two steps in the sidewall of rock drilling room by two steps and adopt rock drilling room sidewall outside plate 5 and form, wherein two steps adopt plate 4 in the sidewall of rock drilling room is the integral slab structure of not band breach, and when this integral slab structure is possible to prevent experiment, ore falls into the rear portion that two steps adopt experimental box.
A described step is adopted rock drilling room sidewall and is adopted plate 2 and a step in the sidewall of rock drilling room by a step and adopt rock drilling room sidewall outside plate 3 and form, described Left-Hand Panel 6 and right side panel 7 are provided with baffle plate open holes, it is corresponding that baffle plate open holes adopts plate 4 in the sidewall of rock drilling room with a step, a described step is adopted plate 2 in the sidewall of rock drilling room and is had baffle plate 21, it is identical that described baffle plate 21 adopts plate 2 size in the sidewall of rock drilling room with a step, a step can be allowed to adopt plate 2 in the sidewall of rock drilling room by insertion baffle plate and become integral slab structure, when preventing from testing, ore falls into a step and adopts other positions bottom experimental box, convenient from going out the ore taking out avalanche in room, ore deposit 19.
The using method of described gently inclined medium thick orebody back production physics emulation research device, comprises the following steps:
Step one: carry out a step adopt physics emulation put ore deposit experiment,
A) the inner, room, ore deposit 19 will be gone out be arranged on a step and adopt rock drilling room sidewall outside plate 3 indentation, there;
B) with ore, one step is adopted experimental box to fill up, top board groove on Left-Hand Panel 6 and right side panel 7 is outwards extracted a step out and is adopted rock drilling room top board 16, while often extracting a step out and adopt the distance at step gauge 12 interval, extract one piece of one step out adopt the explosion that step gauge 12 carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from a step is taken out by going out room, ore deposit 19, the ore gross weight that record is filled is with from the weight going out the ore that room, ore deposit 19 is taken out, finally an empty clearly step adopts the ore in experimental box;
C) angle of the 4th boundary plates 9 is adjusted, in the present embodiment, the initial angle of 4th boundary plates 9 is be 30 �� with level, change a step corresponding with this angle simultaneously and adopt step gauge 12, the present embodiment often improves 5 �� have with on right side panel 7 at Left-Hand Panel 6 together with corresponding cutting, 4th boundary plates 9 often improves 5 ��, repeats a step b) in experiment, until the 4th boundary plates 9 angle 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, thus change the spacing that a step adopts step gauge 12, first this step adopts step gauge 12 every a step extract a step out and adopt step gauge 12, and repeat a step c) experiment, then adopt step gauge 12 every a step to extract one piece of one step again out and adopt step gauge 12, and repeat a step c) experiment;
E) by changing different steps and adopt rock drilling room sidewall and two steps adopt rock drilling room sidewall, a step is regulated to adopt the breach spacing on the sidewall of rock drilling room and two steps adopt the breach spacing on the sidewall of rock drilling room, thus change the spacing room, ore deposit 19, often change once the different spacing going out room, ore deposit 19, repeat a steps d) in experiment, the present embodiment needs three groups of different room, ore deposit 19 spacing that go out tested, thus different to be gone out the experiment that room, ore deposit 19 spacing repeats three step d) according to these three times;
F) ratio from the ore weight and the gross weight of the ore of filling that go out room, ore deposit 19 taking-up in above step is added up, it is ore recovery ratio, take ore recovery ratio as the setting parameter that optimizing index is designed a step and adopted the optimum of experiment, design the practical situation that the object of setting parameter of optimum that a step adopts experiment is simulation scene, mine, and design and can reach economic maximized mining mode;
Step 2: carry out two steps adopt physics emulation put ore deposit experiment,
A) it is arranged on, by going out the inner, room, ore deposit 19, the indentation, there that two steps adopt rock drilling room sidewall outside plate 5;
B) with ore, two steps are adopted experimental box to fill up, outwards extract two steps out from the top board groove Left-Hand Panel 6 and right side panel 7 and adopt rock drilling room top board 17, while often extracting two steps out and adopt the distance at step gauge 15 interval, extract one piece of two step out adopt the explosion that step gauge 15 carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from two steps is taken out by going out room, ore deposit 19, the gross weight of the ore that record is filled is with from the weight going out the ore that room, ore deposit 19 is taken out, finally empty clearly two steps adopt 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, thus change the spacing that two steps adopt step gauge 15, first the present embodiment adopts step gauge 15 every two steps extract two steps out and adopt step gauge 15, and repeat a step b) experiment, then adopt step gauge 15 every two steps to extract two piece of two step out and adopt step gauge 15, and repeat a step b) experiment;
D) by changing different steps, just rock drilling sidewall and two steps adopt rock drilling sidewall, a step is regulated to adopt the breach spacing on the sidewall of rock drilling room and two steps adopt the breach spacing on rock drilling stone sidewall, thus change the spacing room, ore deposit 19, often change once the different spacing going out room, ore deposit 19, repeat a step c) in experiment, the present embodiment needs three groups of different room, ore deposit 19 spacing that go out tested, often changes step and adopt rock drilling chamber sidewall and two steps are adopted rock drilling chamber sidewall and repeated a step c) experiment;
E) ratio from the ore weight and the gross weight of the ore of filling that go out room, ore deposit 19 taking-up in above step is added up, it is ore recovery ratio, take ore recovery ratio as the setting parameter that optimizing index is designed two steps and adopted the optimum of experiment, design the practical situation that the object of parameter setting of optimum that two steps adopt experiment is simulation scene, mine, and design and can reach economic maximized mining mode;
Step 3: carry out ore slag cleaning mechanism research physical simulation experiment,
A) take out the step that a step adopts in experimental box and adopt step gauge 12, and with tailings, one step is adopted experimental box and fill up, two steps are adopted experimental box ore fill up, the second boundary plate 10 is extracted out by the track on Left-Hand Panel 6 and right side panel 7 inwall, top board groove on Left-Hand Panel 6 and right side panel 7 is outwards extracted two steps out and is adopted rock drilling room top board 17, while often extracting two steps out and adopt the distance at step gauge 15 interval, extract one piece of two step out adopt step gauge 15, going out room, ore deposit 19 and taking out the mixture of ore and the tailings adopting experimental box avalanche from two steps, often take out the mixture of an ore and tailings, calculate the weight ratio of an ore and ore tailings mixture, i.e. product place value, when product place value reaches cut-off grade value ��, stop at out the mixture that ore and tailings are outwards got in room, ore deposit 19, calculate now from the weight ratio of the ore going out ore weight and the filling taken out room, ore deposit 19, i.e. ore recovery ratio, and calculate the weight ratio of tailings and the ore taken out, i.e. ore dilution ratio, then an empty clearly step adopts experimental box and two steps adopt 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, thus change the spacing that two steps adopt step gauge 15, first the present embodiment adopts step gauge 15 every two steps extract two steps out and adopt step gauge 15, and repeat a step b) experiment, then adopt step gauge 15 every two steps to extract two piece of two step out and adopt step gauge 15, and repeat a step c) experiment;
C) step is regulated to adopt the breach spacing on the sidewall of rock drilling room and two steps are adopted the breach spacing on rock drilling stone sidewall thus changed the spacing room, ore deposit 19, often change once the different spacing going out room, ore deposit 19, repeat a step b) in experiment, the present embodiment needs three groups of different room, ore deposit spacing that go out tested, thus different go out the experiment that room, ore deposit spacing repeats three step b) according to these three times;
D) ore recovery ratio in above step is added up, design two optimum steps taking ore recovery ratio and ore dilution ratio as optimizing index and adopt experiment setting parameter, wherein ore recovery ratio and ore dilution ratio are the important indicator of mine economic profit, the present invention can just to the mining parameter at scene before mining, as ore caving interval, a step are adopted the mining parameters such as angle, hole, lower wall limit and simulated, the exploitation economic benefit of gently inclined medium thick orebody there is bigger help.
Claims (10)
1. a gently inclined medium thick orebody back production physics emulation research device, it is characterised in that: comprise base plate, a step adopts experimental box and two steps adopt experimental box;
It is provided with a step on the upside of described base plate and adopts rock drilling room and two steps adopt rock drilling room, one step is adopted rock drilling room and is adopted the parallel setting in rock drilling room with two steps, rock drilling room is adopted and two steps are adopted and are respectively arranged with some groups of corresponding breach on the sidewall of rock drilling room in a step, the spacing of described breach is identical, and this spacing can regulate, base plate is provided with some group corresponding with breach and goes out room, ore deposit, described go out room, the ore deposit square grooved that is that Open Side Down and places, adopt top, rock drilling room in a step to be provided with a step and adopt rock drilling room top board, adopt top, rock drilling room in two steps to be provided with two steps and adopt rock drilling room top board, a described step adopt rock drilling room top board and two steps to adopt rock drilling room top board be the two-stage structure separated in centre, described base plate also comprises Left-Hand Panel and right side panel, Left-Hand Panel and right side panel are separately fixed at base plate both sides, and Left-Hand Panel and right side panel arranged in parallel,
It is by the first boundary plates that a described step adopts experimental box, the second boundary plate, 3rd boundary plates, 4th boundary plates, one step adopts rock drilling room top board and a left side, the closed casing that right side panel is formed, one step is adopted experimental box and is also comprised a step and adopt step gauge, 3rd boundary plates is provided with some articles with left, the groove that right side panel is mutually parallel, adopt experimental box inwall in a step and it is provided with the cutting corresponding with described groove, the bottom that one step adopts step gauge is set in parallel in a step by the cutting that the groove in the 3rd boundary plates and a step adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 3rd boundary plates, wherein the lower end of the first boundary plates and the 4th boundary plates is arranged at the both sides that a step adopts top, rock drilling room respectively, and formed with a step adopt rock drilling room top board of the same size fall mine mouth, the angle of the 4th boundary plates can regulate, one step adopts the plate that step gauge comprises some groups of different shapeies, each group one step adopt step gauge respectively can with the 4th boundary plates corresponding matching of different angles,
It is by the second boundary plate that described two steps adopt experimental box, 5th boundary plates, 6th boundary plates, two steps adopt rock drilling room top board and a left side, the closed casing that right side panel is formed, two steps are adopted experimental box and are also comprised two steps and adopt step gauge, 6th boundary plates is provided with some articles with left, the groove that right side panel is mutually parallel, adopt experimental box inwall in two steps and it is provided with the cutting corresponding with described groove, the bottom that two steps adopt step gauge is set in parallel in two steps by the cutting that the groove in the 6th boundary plates and two steps adopt experimental box inwall and adopts experimental box inside, and can be extracted out by the groove in the 6th boundary plates, the lower end of the 5th boundary plates and the second boundary plate is separately positioned on the both sides that two steps adopt top, rock drilling room, and formed with two steps adopt rock drilling room top board of the same size fall mine mouth, wherein the second boundary plate can be extracted out in top, left and right side panel is provided with top board groove, described top board groove adopt rock drilling room top board with a step and two steps to adopt rock drilling room top board corresponding.
2. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterised in that: a described step adopts rock drilling room sidewall and two steps are adopted rock drilling room sidewall and arranged some groups respectively, often organizes breach spacing different.
3. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterised in that: described first boundary plates, the 3rd boundary plates and the 5th boundary plates are fixed by the cutting corresponded on left and right side panel respectively.
4. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterized in that: the cutting being provided with the different angles corresponding with the 4th boundary plates on described left and right side panel, the 4th boundary plates is fixed on left and right side panel by described cutting.
5. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterized in that: being provided with the track corresponding with the second boundary plate on described left and right side panel inwall, the second boundary plate is arranged on left and right side panel by described track.
6. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterised in that: described the second boundary plate is divided into two portions, and two portions are hinged.
7. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterised in that: the lower end of described 6th boundary plates is articulated with the upper end of the 5th boundary plates.
8. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterized in that: described two steps are adopted rock drilling room sidewall and adopted plate and two steps in the sidewall of rock drilling room by two steps and adopt rock drilling room sidewall outside plate and form, and wherein two steps adopt plate in the sidewall of rock drilling room is the integral slab of not band breach.
9. gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterized in that: a described step is adopted rock drilling room sidewall and adopted plate and a step in the sidewall of rock drilling room by a step and adopt rock drilling room sidewall outside plate and form, a described step is adopted plate in the sidewall of rock drilling room and is had baffle plate, it is identical that baffle plate adopts plate size in the sidewall of rock drilling room with a step, described left and right side panel is provided with baffle plate open holes, and baffle plate open holes is corresponding with baffle plate.
10. the using method of gently inclined medium thick orebody back production physics according to claim 1 emulation research device, it is characterised in that: comprise the following steps:
Step one: carry out a step adopt physics emulation put ore deposit experiment,
A) the indoor end in ore deposit will be gone out be arranged on a step and adopt rock drilling room sidewall outside plate indentation, there;
B) with ore, one step is adopted experimental box to fill up, top board groove on left and right side panel is outwards extracted a step out and is adopted rock drilling room top board, while often extracting a step out and adopt the distance at step gauge interval, extract one piece of one step out adopt the explosion that step gauge carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from a step is taken out by going out room, ore deposit, the ore gross weight that record is filled is with from the weight going out the ore that room, ore deposit is taken out, finally an empty clearly step adopts the ore in experimental box;
C) adjust the 4th boundary plates angle, change a step corresponding with this angle simultaneously and adopt step gauge, often adjust one order four boundary plates angle, repeat a step b) in experiment, until each angle is all tested 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, thus change the spacing that a step adopts step gauge, often change one step adopts the spacing of step gauge, repeat a step c) in experiment, all test complete until different steps adopts step gauge spacing;
E) regulate a step to adopt the breach spacing on the sidewall of rock drilling room thus change the spacing room, ore deposit, often change once the different spacing going out room, ore deposit, repeat a steps d) in experiment, until all different room, ore deposit spacing that goes out all are tested complete;
F) add up in above step from go out room, ore deposit take out ore weight and the ratio of the gross weight of the ore of filling, be ore recovery ratio, taking ore recovery ratio be optimizing index design a step adopt physics emulation put ore deposit experiment setting parameter;
Step 2: carry out two steps adopt physics emulation put ore deposit experiment,
A) the indoor end in ore deposit will be gone out be arranged on two steps and adopt rock drilling room sidewall outside plate indentation, there;
B) with ore, two steps are adopted experimental box to fill up, outwards extract two steps out from the top board groove left and right side panel and adopt rock drilling room top board, while often extracting two steps out and adopt the distance at step gauge interval, extract one piece of two step out adopt the explosion that step gauge carrys out the single step pitch of simulated field and fall ore deposit operation, the ore adopting avalanche in experimental box from two steps is taken out by going out room, ore deposit, the gross weight of the ore that record is filled is with from the weight going out the ore that room, ore deposit is taken out, finally empty clearly two steps adopt the ore in experimental box;
C) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thus changes the spacing that two steps adopt step gauge, often changes the spacing that two step adopt step gauge and repeats a step b) in experiment;
D) step is regulated to adopt rock drilling room sidewall and two steps are adopted the spacing of the breach on the sidewall of rock drilling room thus changed and room, ore deposit spacing, often change the spacing once going out room, ore deposit, repeat a step c) in experiment, until all different room, ore deposit spacing that goes out all are tested complete;
E) add up in above step from go out room, ore deposit take out the weight of ore and the ratio of the gross weight of the ore of filling, be ore recovery ratio, taking ore recovery ratio be optimizing index design two steps adopt physics emulation put ore deposit experiment setting parameter;
Step 3: carry out ore slag cleaning mechanism research physical simulation experiment,
A) take out the step that a step adopts in experimental box and adopt step gauge, and with tailings, one step is adopted experimental box and fill up, two steps are adopted experimental box ore fill up, extract the second boundary plate out, on a left side, top board groove on the panel of right side is outwards extracted two steps out and is adopted rock drilling room top board, while often extracting two steps out and adopt the distance at step gauge interval, extract one piece of two step out adopt step gauge, go out room, ore deposit take out adopt the ore of experimental box avalanche and the mixture of tailings from two steps, often take out the mixture of an ore and tailings, calculate the weight ratio of an ore and ore tailings mixture, i.e. product place value, when product place value reaches cut-off grade value ��, stop at out the mixture that ore and tailings are outwards got in room, ore deposit, calculate now from the weight ratio of the ore going out ore weight and the filling taken out room, ore deposit, i.e. ore recovery ratio, and calculate the weight ratio of tailings and the ore taken out, i.e. ore dilution ratio, then an empty clearly step adopts experimental box and two steps adopt experimental box,
B) extracting a part of two steps out adopts step gauge and makes remaining two steps adopt step gauge spacing identical, thus change the spacing that two steps adopt step gauge, often change the spacing that two step adopt step gauge and repeat experiment a) of step, all test complete until two different steps adopt step gauge spacing;
C) regulate a step to adopt rock drilling room sidewall and two steps are adopted the breach spacing on the sidewall of rock drilling room thus changed and room, ore deposit spacing, often change the spacing once going out room, ore deposit, repeat a step b) in experiment, until different room, the ore deposit spacing that goes out all is tested complete;
D) add up the ore recovery ratio in above step, design the setting parameter of optimum ore slag cleaning mechanism research physical simulation experiment by optimizing index of ore recovery ratio and ore dilution ratio.
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| CN105627851B (en) * | 2016-01-29 | 2018-01-30 | 王昌益 | A kind of new method of rock blasting Study on Deformation |
| CN112435564B (en) * | 2018-01-03 | 2023-01-13 | 北京科技大学 | Experimental instrument and experimental method for mining inclined medium-thick and thick ore bodies by caving method |
| CN109118926B (en) * | 2018-09-26 | 2020-12-08 | 西安科技大学 | Strip mine mining program demonstration physical model and use method thereof |
| CN110410077B (en) * | 2019-07-05 | 2020-07-31 | 东北大学 | Caving method end ore drawing model considering sidewall effect |
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