CN104034546A - Automatic ore drawing experimental device capable of adjusting end wall inclination of working face - Google Patents
Automatic ore drawing experimental device capable of adjusting end wall inclination of working face Download PDFInfo
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- CN104034546A CN104034546A CN201410253217.3A CN201410253217A CN104034546A CN 104034546 A CN104034546 A CN 104034546A CN 201410253217 A CN201410253217 A CN 201410253217A CN 104034546 A CN104034546 A CN 104034546A
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Abstract
The invention belongs to the technical field of ore drawing in underground mining of metal mines and particularly relates to an automatic ore drawing experimental device capable of adjusting the end wall inclination of a working face. The automatic ore drawing experimental device is characterized by comprising a main ore storage tank, an ore drawing base arranged at the bottom of the main ore storage tank, a working face inclination adjusting module on the lower portion of the main ore storage tank, and an ore automatic screening process system connected with the ore drawing base. The automatic ore drawing experimental device can simulate the influence of working face inclination change on ore drawing loss and dilution during ore drawing of working faces at different inclinations to find out the optimal working face inclination and to fully utilize and recover resources. The automatic ore drawing experimental device capable of adjusting the end wall inclination of the working face is simple in structure, rapid and flexible in assembly, convenient to operate and use in experiments and high in automation degree.
Description
Technical field
The invention belongs to the mining ore drawing technical field of metal mine underground mining, especially relate to the automatic ore drawing experimental provision at a kind of adjustable workplace end wall inclination angle.
Background technology
Non-pillar sublevel caving mining methods from middle 1960s since China brings into use, rely on the features such as it is simple in structure, mechanization degree is high, cost is low, security performance is good, mining intensity is large, obtained rapid popularization at metal mine, particularly in iron ore mine, application is more extensive.
Ore drawing research for above-mentioned mining methods mainly contains laboratory physical simulation experiment method, on-the-spot industrial experiment method and Computer Numerical Simulation analytic approach etc.Laboratory physical simulation experiment method is in mining engineering, to carry out the front important parameter optimization means of commerical test, to reproduce original ore drawing scene with ore drawing physical model, in laboratory, utilize similar to field condition, and the physical model of relative decrease carries out ore drawing experiment in proportion, make model ore drawing process and on-the-spot ore drawing process reach approximate physical similarity, the Mine-rock in Caving Method characteristics of motion in grasp and understanding ore drawing process, the technical matters such as stope terrestrial stress Strata Behavior in the loss and dilution of broken ore in ore drawing process and ore drawing process, and then preferred and improvement Mining Structure Parameters and schedule of ore drawing.Therefore, Ore drawing model has important directive function to experiment.
At present, in the middle of the exploitation of iron ore mine, most of mines mainly adopt this pattern of sublevel caving method without sill pillar mining Side ore drawing to produce.Side ore drawing is under overlayer, to carry out ore drawing, and what while just starting ore drawing, emit is pure ore, and very fast top barren rock is sneaked into, and causes ore losses dilution.Loss and dilution rate height is the defect of this class mining methods maximum, is also a great problem that always perplexs mining circle.For the dilution of reducing the loss, experts and scholars start with from many aspects both at home and abroad, have carried out lot of experiments, also propose a lot of feasible schemes.From having improved in varying degrees loss and dilution index.But, a large amount of ore drawing experiments that experts and scholars do at present, the situation shown in a in following Fig. 1 that mainly concentrates on of simulation.In the situation shown in a, coal face end wall inclination angle is vertical.In the time that the inclination angle of workplace changes, ore drawing effect is difference to some extent.For this point, carried out systematic study with regard to current also nobody.Again two kinds of different states for b in Fig. 1 and the workplace end wall inclination angle shown in c, and at present less for the research of these two kinds of workplace inclination angle situations, and its main cause is to lack at present the experimental provision of this respect.In figure, A is level workings, and B is avalanche step pitch, and C is barren rock, and D is ore body, and E is Caved orebody, and F is loosening body, and G is coal face.
The simulated experiment of ore drawing physical simulation will, according to the difference of simulated object, be made the empirical model that corresponding ratio is different.Often once test, need to make a set of model corresponding with this parameter; In the time that experiment parameter changes, because original model no longer adapts to, need to make new model, for a long time, adopt stationary structure for the experimental provision of making ore drawing empirical model always, according to the different parameters of empirical model, make the stationary installation that structure and size are answered in contrast, this stationary installation is all the ore drawing experiment that in simulation drawing 1, the inclination angle of coal face end wall shown in a is vertical condition substantially, and for the experimental simulation in other workplace inclination angle situations, because of the restriction of stationary installation, experiment cannot realize.And the detachment process of the ore drawing of this stationary installation, ore and barren rock is substantially by manually completing, this often causes, and simulated experiment operational sequence is numerous and diverse, workload large, when laboratory fees, inefficiency.
Summary of the invention
The object of this invention is to provide the automatic ore drawing experimental provision at a kind of adjustable workplace end wall inclination angle, the impact of the variation that can simulate different coal faces inclination angle on ore drawing loss and dilution, thereby the workplace inclination angle of devise optimum, reduces ore drawing loss and dilution, fully reclaims and utilize mineral resources.
The present invention realizes by following technical proposals:
The automatic ore drawing experimental provision at a kind of adjustable workplace end wall of the present invention inclination angle, it is characterized in that comprising main body storage ore deposit case, be located at the ore drawing base of this main body storage ore deposit lower box part, be located at the workplace tilt adjustment assembly of described main body storage ore deposit lower box part, the ore automatic sieving disposal system being connected with described ore drawing base
Described main body storage ore deposit case comprises by two front columns, two storage ore deposit cabinet frame that rear column, tie-beam and bottom bracing form, be located at two stulls of this storage cabinet frame bottom, ore deposit, be located at respectively front panel and the rear panel of both sides, cabinet frame front and back, described storage ore deposit, be located at respectively the observation glass of the cabinet frame left and right sides, described storage ore deposit, be located at and between described stull and bottom bracing, observe workplace inclination angle index dial on glass, two described stulls are provided with spill chute, and described stull front end is provided with trip bolt
Described ore drawing base comprises bedframe, be located at the ore drawing device on this bedframe, this ore drawing device comprises discharging outlet, discharging exports the oscillating plate being hinged by bearing pin therewith, what be located at this oscillating plate below slips ore deposit skewed slot, be located at this and slip two bracing frames of skewed slot both sides, ore deposit, be located at the camshaft on these two bracing frames, two motor that camshaft two axial ends is connected therewith, described oscillating plate abuts against on the cam of described camshaft, described motor is connected with computer terminal port by control circuit
Described workplace tilt adjustment assembly comprises the activity translation plates of sliding along the spill chute in described stull, rotational slip plate in the embedding being connected by top coupling shaft activity translation plates therewith, the flap shutter being hinged by the bottom bracing of bottom coupling shaft and described main body storage ore deposit case, the middle part of this flap shutter is provided with drawhole, and the both sides of the edge of described flap shutter are provided with chute, in described embedding, rotational slip plate is located in described chute
Ore automatic sieving disposal system comprises two supports, be separately positioned on carrying roller and magnetic pulley on these two supports, connect the belt of described carrying roller and magnetic pulley, be located at the charging aperture of described carrying roller top, be located at the separate measurement device of described magnetic pulley rear side, the DAPAF that separate measurement device is connected therewith, described charging aperture is connected with the described ore deposit skewed slot that slips.
The described skewed slot width that slips ore deposit skewed slot is 85-95mm.
The described interior ramp rate of skewed slot that slips ore deposit skewed slot is greater than the natural repose angle of ore.
Described oscillating plate is sheet steel, and its length is 95-105mm, and width is 75-85mm.
Described front panel and rear panel are density fiber board.
Two described motor tops are equipped with submerged plate.
Advantage of the present invention:
When the automatic ore drawing experimental provision at adjustable workplace end wall of the present invention inclination angle can be simulated under different operating face inclination angle ore drawing, the impact of workplace change of pitch angle on ore drawing loss and dilution, thus find optimum workplace inclination angle, utilize fully and reclaim resource.In the middle of whole ore drawing process, ore drawing can complete ore drawing by the automatic ore drawing system of installing in base, and the ore being released can be realized separation, the record of experimental data and the computer program Automatic analysis of experimental data of ore through the ore automatic sieving disposal system of weighing again.Apparatus structure is simple, and assembling is flexibly quick, and experimental implementation is easy to use, and automaticity is higher.
Brief description of the drawings
Fig. 1 is three kinds of workplace end wall inclination angle states that simulated.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the unitized construction schematic diagram of figure main body storage of the present invention ore deposit case, ore drawing base and workplace tilt adjustment assembly.
Fig. 4 is main body storage of the present invention ore deposit box structure schematic diagram.
Fig. 5 is ore drawing understructure schematic diagram of the present invention.
Fig. 6 is workplace tilt adjustment modular construction schematic diagram of the present invention.
Embodiment
Further illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 2, the automatic ore drawing experimental provision at adjustable workplace end wall of the present invention inclination angle, it is characterized in that comprising main body storage ore deposit case 1, be located at the ore drawing base 2 of this main body storage ore deposit lower box part, be located at the workplace tilt adjustment assembly 3 of described main body storage case 1 bottom, ore deposit, the ore automatic sieving disposal system 4 being connected with described ore drawing base
As Fig. 3, shown in 4, described main body storage ore deposit case 1 comprises by two front column 1-2, two rear column 1-3, the storage ore deposit cabinet frame of tie-beam 1-4 and bottom bracing 1-1 composition, be located at two stull 1-5 of this storage cabinet frame bottom, ore deposit, be located at respectively front panel 1-6 and the rear panel 1-7 of both sides, cabinet frame front and back, described storage ore deposit, be located at respectively the observation glass 1-8 of the cabinet frame left and right sides, described storage ore deposit, be located at and between described stull 1-5 and bottom bracing 1-1, observe the workplace inclination angle index dial 1-9 on glass 1-8, two described stulls are provided with spill chute, and described stull front end is provided with trip bolt 1-10,
As Fig. 3, shown in 5, described ore drawing base 2 comprises bedframe 2-1, be located at the ore drawing device on this bedframe 2-1, this ore drawing device comprises discharging outlet 2-2, the oscillating plate 2-3 that discharging outlet 2-2 is hinged by bearing pin therewith, what be located at this oscillating plate 2-3 below slips ore deposit skewed slot 2-5, be located at this and slip two bracing frame 2-7 of skewed slot 2-5 both sides, ore deposit, be located at the camshaft 2-8 on these two bracing frame 2-7, two motor 2-4 that camshaft 2-8 two axial ends is connected therewith, described oscillating plate 2-3 abuts against on the cam of described camshaft 2-8, described motor 2-4 is connected with computer terminal port by control circuit,
As shown in Fig. 3,6, described workplace tilt adjustment assembly 3 comprises the activity translation plates 3-1 sliding along the spill chute on described stull 1-5, rotational slip plate 3-2 in the embedding being connected by top coupling shaft 3-4 activity translation plates therewith 3-1, the flap shutter 3-3 being hinged by the bottom bracing 1-1 of bottom coupling shaft 3-5 and described main body storage ore deposit case 1, the middle part of this flap shutter 3-3 is provided with drawhole, and the both sides of the edge of described flap shutter 3-3 are provided with chute, in described embedding, rotational slip plate 3-2 is located in described chute
As shown in Figure 2, ore automatic sieving disposal system 4 comprises two support 4-1, be separately positioned on carrying roller 4-2 and magnetic pulley 4-3 on these two support 4-1, connect the belt 4-4 of described carrying roller 4-2 and magnetic pulley 4-3, be located at the charging aperture 4-5 of described carrying roller 4-2 top, be located at the separate measurement device 4-6 of described magnetic pulley 4-3 rear side, the DAPAF 4-7 that separate measurement device 4-6 is connected therewith, described charging aperture 4-5 is connected with the described ore deposit skewed slot 2-5 that slips.
The described skewed slot width that slips ore deposit skewed slot 2-5 is 85-95mm.
The described interior ramp rate of skewed slot that slips ore deposit skewed slot 2-5 is greater than the natural repose angle of ore.
Described oscillating plate 2-3 is sheet steel, and its length is 95-105mm, and width is 75-85mm.
Described front panel 1-6 and rear panel 1-7 are density fiber board.
Two described motor 2-4 tops are equipped with submerged plate 2-6; be used for protecting motor 2-4 and interlock circuit; prevent in ore drawing process because tiny and powder ore enter motor 2-4 and bearing portion, cause the problem such as short circuit, stuck bearing and affect the normal work of the devices such as motor 2-4.
Principle of work of the present invention is:
Working surface angle changes principle: by front and back translational adjustment activity translation plates 3-1, drive rotational slip plate 3-2 in embedding to rotate around top coupling shaft 3-4; In embedding, rotational slip plate 3-2 is in rotating, again can slippage in the chute of flap shutter 3-3, force flap shutter 3-3 to rotate around bottom coupling shaft 3-5, when flap shutter 3-3 rotates, the angle of flap shutter 3-3 and surface level changes, this angle is exactly the workplace inclination angle that we simulate, and this angular dimension can be learnt by device side measurement of angle; By regulating this angle, the ore drawing experiment in simulation different angles situation, records experimental data, then realizes the fundamental purpose of experiment by the method deal with data of comparative analysis.
Automatically ore drawing principle: the ore drawing device that ore drawing base is built-in, by the rotation of electronic control motor 2-4, drive the rotation of camshaft 2-8, when camshaft 2-8 rotates, due to the effect of cam, making to be positioned at the oscillating plate 2-3 contacting with it above camshaft 2-8 swings back and forth in vertical direction, thereby force the ore at the discharging outlet 2-2 place being connected with oscillating plate 2-3 that the loosening ore drawing of being convenient to occurs, the ore being become flexible can enter and slips ore deposit skewed slot 2-5 along with oscillating plate 2-3 swings the inclined-plane landing forming, final ore enters the weigh charging aperture 4-5 of disposal system 4 of ore automatic sieving from slipping ore deposit skewed slot 2-5 outlet.
Ore separation principle: use iron ore to contain magnetic principles, by magnetic separation, separate automatic to barren rock and iron ore, automatic Weighing record data separately after separation, then give computer data transmission, finally by computer software analyzing and processing related data.Idiographic flow is as follows: the ore that is entered belt by charging aperture 4-5 place, under the drive of motor, be transported to the other end of belt by one end of belt, in the time that ore arrival has the belt other end of magnetic pulley 4-3 structure, due to the magnetic separation effect of magnetic pulley 4-3, absorption iron ore all enters separate measurement device 4-6 with the barren rock not being adsorbed and separates load-bearing, load-bearing data are also transferred to DAPAF 4-7, finally by DAPAF 4-7 relative program Treatment Analysis experimental data.
Experimental provision of the present invention has been assembled and after Preparatory work of experiment job done, the experiment of grouping simulation ore drawing, tests a corresponding working surface angle for every group, and its concrete operations are as follows: adjustment device work face tilt adjustment assembly 3, a selected workplace end wall inclination angle.For example: front and back translation twitch activity translation plates 3-1, cause activity translation plates 3-1 to slide along the spill chute on stull 1-5, drive rotational slip plate 3-2 in the embedding being attached thereto to rotate around top coupling shaft 3-4 simultaneously; And rotational slip plate 3-2 is embedded in flap shutter 3-3 in embedding, in rotating, again can be along the chute slippage in flap shutter 3-3.In embedding, in rotational slip plate 3-2 slipping, flap shutter 3-3 can rotate around bottom coupling shaft 3-5 again, and the angle of flap shutter 3-3 and surface level changes, and this angle is exactly the workplace end wall inclination angle that we simulate.By continuous front and back twitch activity translation plates 3-1, regulate the angle of flap shutter 3-3 and surface level, this angle is mainly observed measurement by the workplace inclination angle index dial 1-9 of side, when working surface angle is certain certain value, for example, 105 ° time, the now stuck activity translation plates of trip bolt 1-10 3-1, makes workplace end wall inclination angle keep stabilizing to 105 °.After treating that workplace inclination angle is determined, then need to fill experiment material by experiment.At ore and the overlying rock of the corresponding grade of main body storage ore deposit case 1 interior filling, make ore drawing Experiment Parameter model shown in corresponding table.In the middle of the process of dress ore and barren rock, be strictly combined the situation of mine reality, contrived experiment in proportion.After experiment material filling is complete, automatically carry out ore drawing by drawhole and ore drawing base 2 in device, until cut-off grade stops ore drawing.In ore drawing process, when the ore of emitting is weighed disposal system through ore automatic sieving, ore carries out automatically separating and each self-weighing on the one hand, records on the other hand experimental data analyzing and processing in addition.
After treating that last experiment is complete, remove last results from residue tests material.Now unclamp trip bolt 1-10, twitch activity translation plates 3-1 backward, drive workplace tilt adjustment assembly 3 to turn round, changing workplace inclination angle is another value, for example 90 °, when working surface angle is defined as after 90 °, again tighten the stuck activity translation plates of trip bolt 1-10 3-1, make workplace end wall inclination angle keep immobilizing.Then again fill experiment material by requirement of experiment, test.After experiment, unclamp again trip bolt 1-10, continue twitch activity translation plates 3-1 backward, change work face tilt adjustment assembly 3, changes the working surface angle value of workplace end wall inclination angle for testing, for example 75 °, after workplace end wall inclination angle is determined, tighten again trip bolt 1-10 and carry out stuck fixing activity translation plates 3-1, continue to fill material by requirement of experiment, then carry out ore drawing experiments experiment.Above-mentioned experimental procedure so repeatedly, constantly regulate workplace end wall inclination angle by twitching movable part 3-1, ore drawing experiment is simulated in grouping, and every group tested a corresponding working surface angle, in experimentation, constantly record ore losses dilution, find out ore drawing difference between each working surface angle.Determine optimum workplace inclination angle by analyzing comparative experiments data.
When the automatic ore drawing experimental provision at adjustable workplace end wall of the present invention inclination angle can be simulated under different operating face inclination angle ore drawing, the impact of workplace change of pitch angle on ore drawing loss and dilution, thus find optimum workplace inclination angle, utilize fully and reclaim resource.In the middle of whole ore drawing process, ore drawing can complete ore drawing by the automatic ore drawing system of ore drawing base 2 interior installations, and the ore being released can be realized separation, the record of experimental data and the computer program Automatic analysis of experimental data of ore through the ore automatic sieving disposal system 4 of weighing again.Apparatus structure is simple, and assembling is flexibly quick, and experimental implementation is easy to use, and automaticity is higher.
Claims (6)
1. the automatic ore drawing experimental provision at an adjustable workplace end wall inclination angle, it is characterized in that comprising main body storage ore deposit case, be located at the ore drawing base of this main body storage ore deposit lower box part, be located at the workplace tilt adjustment assembly of described main body storage ore deposit lower box part, the ore automatic sieving disposal system being connected with described ore drawing base
Described main body storage ore deposit case comprises by two front columns, two storage ore deposit cabinet frame that rear column, tie-beam and bottom bracing form, be located at two stulls of this storage cabinet frame bottom, ore deposit, be located at respectively front panel and the rear panel of both sides, cabinet frame front and back, described storage ore deposit, be located at respectively the observation glass of the cabinet frame left and right sides, described storage ore deposit, be located at and between described stull and bottom bracing, observe workplace inclination angle index dial on glass, two described stulls are provided with spill chute, and described stull front end is provided with trip bolt
Described ore drawing base comprises bedframe, be located at the ore drawing device on this bedframe, this ore drawing device comprises discharging outlet, discharging exports the oscillating plate being hinged by bearing pin therewith, what be located at this oscillating plate below slips ore deposit skewed slot, be located at this and slip two bracing frames of skewed slot both sides, ore deposit, be located at the camshaft on these two bracing frames, two motor that camshaft two axial ends is connected therewith, described oscillating plate abuts against on the cam of described camshaft, described motor is connected with computer terminal port by control circuit
Described workplace tilt adjustment assembly comprises the activity translation plates of sliding along the spill chute in described stull, rotational slip plate in the embedding being connected by top coupling shaft activity translation plates therewith, the flap shutter being hinged by the bottom bracing of bottom coupling shaft and described main body storage ore deposit case, the middle part of this flap shutter is provided with drawhole, and the both sides of the edge of described flap shutter are provided with chute, in described embedding, rotational slip plate is located in described chute
Ore automatic sieving disposal system comprises two supports, be separately positioned on carrying roller and magnetic pulley on these two supports, connect the belt of described carrying roller and magnetic pulley, be located at the charging aperture of described carrying roller top, be located at the separate measurement device of described magnetic pulley rear side, the DAPAF that separate measurement device is connected therewith, described charging aperture is connected with the described ore deposit skewed slot that slips.
2. the automatic ore drawing experimental provision at adjustable workplace end wall according to claim 1 inclination angle, the skewed slot width of ore deposit skewed slot of slipping described in it is characterized in that is 85-95mm.
3. the automatic ore drawing experimental provision at adjustable workplace end wall according to claim 1 inclination angle, the ramp rate in the skewed slot of ore deposit skewed slot of slipping described in it is characterized in that is greater than the natural repose angle of ore.
4. the automatic ore drawing experimental provision at adjustable workplace end wall according to claim 1 inclination angle, is characterized in that described oscillating plate is sheet steel, and its length is 95-105mm, and width is 75-85mm.
5. the automatic ore drawing experimental provision at adjustable workplace end wall according to claim 1 inclination angle, is characterized in that described front panel and rear panel are density fiber board.
6. the automatic ore drawing experimental provision at adjustable workplace end wall according to claim 1 inclination angle, is characterized in that two described motor tops are equipped with submerged plate.
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |