CN214273639U - Mine underground raw ore pre-throwing waste and transferring system - Google Patents
Mine underground raw ore pre-throwing waste and transferring system Download PDFInfo
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- CN214273639U CN214273639U CN202022980648.3U CN202022980648U CN214273639U CN 214273639 U CN214273639 U CN 214273639U CN 202022980648 U CN202022980648 U CN 202022980648U CN 214273639 U CN214273639 U CN 214273639U
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Abstract
The utility model discloses a mine is useless and transit system of throwing in advance in crude ore in pit. The system comprises a mineral separation device, a supporting beam and an inclined shaft lifting device, wherein the mineral separation device is arranged above a raw ore storage bin and comprises a pickpocket inclined screen and an automatic overturning screen which are arranged end to end, the pickpocket inclined screen is obliquely arranged, the upper end of the pickpocket inclined screen corresponds to the discharge end of an automatic ore dumping device, the automatic overturning screen is positioned below the pickpocket inclined screen, the aperture of a screen hole of the automatic overturning screen is smaller than that of the pickpocket inclined screen, a connecting piece matched with an electric hoist is arranged at the front end of the automatic overturning screen, and the tail end of the automatic overturning screen is movably connected with a concrete partition wall between the raw ore storage bin and a waste rock bin; the supporting beam is arranged between the raking fence inclined screen and the automatic overturning screen and fixedly supports the ore dressing device; the lower part of the inclined shaft lifting device is arranged at the discharge end of the waste rock bin. By adopting the system, a part of waste rocks can be pre-thrown in advance underground, the ore dressing principle that the underground waste rocks can be thrown and early thrown is realized, the grade of the protruding raw ore is improved, the production cost of a concentrating mill, the protruding amount of the waste rocks and the lifting pressure of a vertical shaft are reduced, the backfill management of an underground goaf is solved, and the mechanical level of a mine is improved.
Description
Technical Field
The utility model belongs to the technical field of mining machinery, particularly, relate to mine underground crude ore throws useless and transit system in advance.
Background
When underground mining of a mine, a footrill, a blind shaft and a blind inclined shaft are jointly developed, and mining is carried out by a shallow hole shrinkage method. With the continuous increase of mining depth along with the scale mining for many years, development, production prospecting, mining preparation cutting and mining are mostly concentrated in the deep part, which causes the tension of promotion and the increase of transportation cost, and especially the original transportation promotion capability of old mines seriously restricts the production development requirement; meanwhile, the pulse amplitude of deep ore veins becomes small, the ore grade is reduced, and the grade of the protruding raw ore needs to be improved by pre-throwing waste underground; along with the continuous extension of exploitation middle section, the collecting space area volume is continuously increased, and the collecting space area is urgently needed to be backfilled.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses an it is useless and the transit system of throwing in advance to aim at providing the mine underground crude ore. The system is adopted to treat the raw ore, so that a part of barren rocks can be pre-thrown in the underground, the ore dressing principle that the barren rocks can be thrown and early thrown is realized in the underground, the grade of the unbounded raw ore can be improved, the quantity of the barren rocks generated is reduced, the lifting pressure of a vertical shaft is relieved, the barren rocks can be transferred to a goaf for backfilling, the backfilling treatment of the underground goaf is solved, the production cost of a concentrating mill is reduced, the mechanization level of the mine can be improved, the mining cost and the labor intensity are reduced, and the system has good social and economic values.
According to the utility model discloses an aspect, the utility model provides a mine is former ore deposit in pit is thrown useless and transfer system in advance. According to the utility model discloses an embodiment, this system includes:
an automatic crude ore dumping device;
storing raw ore in a warehouse;
a concrete partition wall is arranged between the waste rock bin and the raw ore storage bin;
the ore dressing device, the ore dressing device is established raw ore warehouse top just is located the automatic device below that falls of raw ore, the ore dressing device includes the raking bar inclined screen and the automatic sieve that turns over that arrange from beginning to end:
the raking fence inclined screen is obliquely arranged, and the upper end of the raking fence inclined screen corresponds to the discharge end of the automatic crude ore dumping device;
the automatic overturning sieve is positioned below the pickpocket inclined sieve, the front end of the automatic overturning sieve is arranged at the tail end of the pickpocket inclined sieve, the mesh aperture of the automatic overturning sieve is smaller than that of the pickpocket inclined sieve, the front end of the automatic overturning sieve is provided with a connecting piece matched with the electric hoist, the tail end of the automatic overturning sieve is arranged above the concrete partition wall and is movably connected with the concrete partition wall, and the automatic overturning sieve is suitable for realizing overturning and falling from a horizontal position to a waste rock bin around the connecting component of the automatic overturning sieve and the concrete partition wall under the control of the electric hoist;
the supporting beam is arranged between the pickoff fence inclined screen and the automatic overturning screen and is used for fixing the lower end of the pickoff fence inclined screen and supporting the front end of the automatic overturning screen;
the inclined shaft hoisting device, establish inclined shaft hoisting device's lower part the discharge end in barren rock storehouse, inclined shaft hoisting device is used for realizing the transportation of barren rock in the barren rock storehouse to the collecting space area.
According to the utility model discloses useless and transfer system is thrown in advance to mine underground raw ore, can utilize automatic ore device of falling to pour the raw ore of mine car transportation into automatically and take off the fence inclined screen mesh and throw useless processing, make the raw ore of small-particle size directly get into raw ore storage storehouse through taking off the fence inclined screen mesh, bold barren rock and ore slide into below automatic turnover screen platform through inclined screen mesh, pick up bold ore into raw ore storehouse through manual sorting further, surplus barren rock controls the upset of automatic turnover screen towards barren rock storehouse through electric block, make bold barren rock get into barren rock storehouse, wherein, automatic turnover screen is arranged horizontally in the manual sorting process, realize the upset towards barren rock storehouse from horizontal position through electric block control when empting barren rock; in addition, the supporting beams can be utilized to realize the vertical arrangement and end-to-end connection of the pickoff fence inclined screen and the automatic overturning screen, so that the large ores and waste rocks on the pickoff fence inclined screen can slide to the automatic overturning screen, and the stability of the whole ore dressing device can be improved; in addition, the inclined shaft lifting device can be used for transferring the waste rocks to the goaf. In conclusion, the system is simple in structure, and the system is adopted to treat the raw ore, so that a part of barren rocks can be pre-thrown in the underground, and the ore dressing principle that the barren rocks can be thrown in the early stage is realized in the underground, so that the grade of the unbounded raw ore can be improved, the quantity of the barren rocks discharged is reduced, the lifting pressure of a vertical shaft is relieved, the barren rocks can be transferred to a goaf to be backfilled, the goaf can be backfilled in time by pre-throwing the barren rocks, the backfilling treatment of the underground goaf is solved, the production cost of a concentrating mill is reduced, the mechanization level of a mine can be improved, the mining and dressing cost and the labor intensity are reduced, and the system has good social and economic values.
Additionally, according to the utility model discloses above-mentioned embodiment's mine is former ore deposit in pit is thrown useless and transfer system in advance can also have following additional technical characterstic:
optionally, the pickoff fence inclined screen comprises a plurality of first screen bars arranged at intervals in the width direction of the pickoff fence inclined screen, the automatic turnover screen comprises a plurality of second screen bars arranged at intervals in the width direction of the automatic turnover screen, and the distance between any two adjacent second screen bars is smaller than the distance between any two adjacent first screen bars.
Optionally, the supporting beam comprises a cross beam and a supporting column, the cross beam is arranged along the width direction of the pickpocket fence inclined screen, the tail end of the pickpocket fence inclined screen abuts against one side of the cross beam, and the front end of the automatic overturning screen is supported by the other side of the cross beam; the support column is arranged below the cross beam and supports the cross beam.
Optionally, at least one of the following conditions is met: a plurality of first grooves suitable for embedding the first screen bars are formed in one side, close to the raking fence inclined screen, of the cross beam; a plurality of second grooves suitable for embedding the second screen bars are formed in one side, close to the automatic turnover screen, of the cross beam; the height of the cross beam close to one side of the pickoff fence inclined screen is larger than that of the automatic turnover screen when the automatic turnover screen is positioned at a horizontal position.
Optionally, a fixed beam is arranged in the middle of the pickoff fence inclined screen, the fixed beam is located below the pickoff fence inclined screen and arranged in parallel to the cross beam, and a plurality of third grooves suitable for embedding the first screen bars are formed in the fixed beam.
Optionally, the tail end of the automatic trommel extends above the waste bin.
Optionally, the ore dressing device comprises at least one pickoff fence inclined screen and at least two automatic overturning screens arranged side by side, wherein each automatic overturning screen is independently provided with a connecting piece matched with the electric hoist and movably connected with the concrete partition wall.
Optionally, at least one of the following conditions is met: the distance between two adjacent automatic turnover screens is not more than 8 cm; the two sides of the automatic turnover screen in the width direction at least extend to the end part of the pickoff fence inclined screen; and the connecting pieces matched with the electric hoist on each automatic turnover screen are arranged in pairs, and the connecting pieces arranged in pairs are symmetrically distributed on two sides of the automatic turnover screen in the width direction.
Optionally, the waste rock bin comprises a first waste rock bin and a second waste rock bin, the discharge end of the first waste rock bin is arranged at the lower part of the inclined shaft lifting device, the second waste rock bin is arranged at the upper part of the inclined shaft lifting device, the inclined shaft lifting device is suitable for transferring waste rocks in the first waste rock bin to the second waste rock bin, and waste rocks in the second waste rock bin are suitable for transferring to the goaf through a mine car.
Optionally, at least one of the following conditions is met: at least one of the raw ore storage bin and the waste rock bin is provided with a vibrating ore hopper at the bottom; and the discharge end of the raw ore storage bin is connected with the ore removal device of the other mining middle section below the mining middle section where the raw ore storage bin is located.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of the structure of the mine underground raw ore pre-throwing waste system according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a support beam according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a pickoff fence inclined screen and an automatic turnover screen according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a waste rock bin and a slant well lifting device of the pickoff fence inclined screen according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the mine underground raw ore pre-dumping system according to the utility model discloses a from the top down looks.
Fig. 6 is a schematic view of the distribution of the screen bars and the screen holes of the pickoff fence inclined screen according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of the structure of the mine underground raw ore pre-dumping system adopted in embodiment 1 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "horizontal", "bottom", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In addition, in the present disclosure, unless otherwise expressly stated or limited, the first feature may be directly on or directly under the second feature, or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
According to the utility model discloses an aspect, the utility model provides a mine is former ore deposit in pit is thrown useless and transfer system in advance. According to the utility model discloses an embodiment, referring to fig. 1 ~ 4, this system includes: the automatic raw ore dumping device comprises a raw ore automatic dumping device 100, an ore dressing device 200, a raw ore storage bin 300, a waste rock bin 400, an inclined shaft lifting device 500 and a supporting beam 600. Wherein a concrete partition wall is arranged between the waste rock bin 400 and the raw ore storage bin 300; the ore dressing device 200 is established in the automatic ore device 100 below that falls of raw ore in the 300 tops of raw ore storage bin and being located the raw ore, and ore dressing device 200 includes the raking fence inclined screen 210 and the automatic sieve 220 that turns over that the head and the tail arranged: the raking fence inclined screen 210 is obliquely arranged, and the upper end of the raking fence inclined screen corresponds to the discharge end of the raw ore automatic dumping device 100; the automatic overturning sieve 220 is positioned below the pickpocket inclined sieve 100, the front end of the automatic overturning sieve 220 is arranged at the tail end of the pickpocket inclined sieve 100, the mesh aperture of the automatic overturning sieve 220 is smaller than that of the pickpocket inclined sieve 210, the front end of the automatic overturning sieve 220 is provided with a connecting piece 222 matched with the electric hoist 224, the tail end of the automatic overturning sieve 220 is arranged above the concrete partition wall and is movably connected with the concrete partition wall, and the automatic overturning sieve 220 is suitable for realizing overturning and falling from a horizontal position to the waste rock bin 400 around a connecting component 223 of the automatic overturning sieve and the concrete partition wall under the control of the electric hoist 224; the supporting beam 600 is arranged between the pickpocket fence inclined screen 210 and the automatic overturning screen 220 and is used for fixing the lower end of the pickpocket fence inclined screen 210 and supporting the front end of the automatic overturning screen 220; the lower part of the inclined shaft lifting device 500 is arranged at the discharge end of the waste rock bin 400, and the inclined shaft lifting device 500 is used for transferring waste rocks in the waste rock bin 400 to a goaf.
According to the embodiment of the utility model, this mine is former ore in pit throws useless and transfer system in advance can utilize automatic ore device of falling to pour the former ore of mine car transportation into automatically and take off the fence inclined screen mesh and throw useless processing, make the former ore of small-particle size directly get into the former ore storage storehouse through taking off the fence inclined screen mesh, bold barren rock and ore slide into below automatic turnover sieve platform through the inclined screen mesh, pick up bold ore into the former ore storehouse through manual sorting, surplus barren rock controls the upset of automatic turnover sieve towards barren rock storehouse through electric block, make bold barren rock get into the barren rock storehouse, wherein, automatic turnover sieve is arranged horizontally in the manual sorting process, realize the upset towards the barren rock storehouse from horizontal position through electric block control when empting barren rock; in addition, the supporting beams can be utilized to realize the vertical arrangement and end-to-end connection of the pickoff fence inclined screen and the automatic overturning screen, so that the large ores and waste rocks on the pickoff fence inclined screen can slide to the automatic overturning screen, and the stability of the whole ore dressing device can be improved; in addition, the inclined shaft lifting device can be used for transferring the waste rocks to the goaf. In conclusion, the system is simple in structure, when the system is used for processing raw ore, the grade of the protruding-hole raw ore can be improved, the protruding-hole quantity of waste rocks is reduced, the lifting pressure of the vertical shaft is relieved, the waste rocks can be transferred to the goaf to be backfilled, the pre-cast waste rocks can be timely backfilled to the goaf, the backfilling management of the underground goaf is achieved, the production cost of an enterprise is reduced, the mechanical level of the mine can be improved, the labor intensity of operating personnel is reduced, and the system has good social and economic values.
The mine underground raw ore pre-throwing waste and transferring system of the embodiment of the invention is described in detail with reference to fig. 1-6.
Raking fence inclined screen 210
According to the utility model discloses an embodiment, take off fence inclined screen 210 is suitable for and carries out the primary election to former ore, makes the direct former ore of small-size grain diameter get into former ore storage storehouse through taking off fence inclined screen sieve mesh.
According to a specific embodiment of the present invention, the pickoff fence inclined screen 210 may include a plurality of first screen bars 211 arranged at intervals along the width direction of the pickoff fence inclined screen 210, and the gap between two adjacent first screen bars forms the screen holes of the pickoff fence inclined screen, as shown in fig. 3 and fig. 6, a strip-shaped screen hole may be formed between two adjacent first screen bars 211 in the pickoff fence inclined screen 210, and the screen hole cross section 212 may be a structure with a narrow top and a wide bottom, and the inventors found that by forming a strip-shaped screen hole, not only the inclined screen structure may be simplified, but also smooth separation of small-particle-size raw ore and large ore may be facilitated; in addition, the cross section of each sieve pore is narrow at the top and wide at the bottom, so that small-particle-size raw ores falling through the inclined sieve can more smoothly fall into the raw ore storage bin, and the problem that the small-particle-size raw ores are blocked in the sieve pores due to uneven particle sizes to block the inclined sieve in the fence, so that the screening efficiency and the screening effect are influenced is avoided.
According to the utility model discloses a still another embodiment, it is shown with reference to fig. 6, take off every first ribbon 211's in fence inclined screen 210 cross-section can be respectively independently for falling the trapezium structure, not only can ensure from this that the sieve mesh cross-section that forms is under the narrow wide structure, can also make the sieve mesh grow gradually along the direction aperture towards former ore storage storehouse, can more be favorable to the former ore of granule footpath to fall into former ore storage storehouse smoothly from this, avoid appearing the problem that the former ore of granule footpath blockked up the inclined screen sieve mesh. Further, the first screen bars 211 can be steel screen bars, so that the strength and the service life of the pickoff fence inclined screen can be further improved. More preferably, each first screen band 211 can be independently a large-face-up trapezoidal steel, namely the long bottom of the trapezoidal steel faces upwards, the inventor finds that the raw ore rolls on the inclined screen of the pickpocket fence through the automatic ore dumping device and then continues to roll on the inclined screen of the pickpocket fence until the raw ore slides to the automatic screen overturning platform, during which the ore rolls and the raw ore with small grain size drops to the raw ore storage bin, the sieve bars are greatly abraded, excessive abrasion of the screen bars can also cause the spacing between the screen bars to be enlarged, reduce the screening effect of the raking fence inclined screen, cause the pre-throwing rate of waste rocks to be reduced, reduce the grade of the protruding raw ore, the wear resistance and the service life of the pickoff fence inclined screen can be obviously improved by adopting the bar-shaped steel with the trapezoidal cross section as the first screen bar, thereby greatly reducing the probability of the reduction of the grade of the outlet raw ore and the reduction of the waste rock pre-throwing rate caused by the abrasion of the screen bars and the frequency of replacing the screen bars.
According to the utility model discloses a still another embodiment, every first ribbon 211 can be dismantled and fix on taking off fence inclined screen in the fence inclined screen 210, can be more convenient for replace or dismantle the ribbon from this, conveniently replace the ribbon of damage or solve the problem of sieve mesh jam at any time.
According to another embodiment of the present invention, the distance L between two adjacent first bars 211 in the pickoff fence inclined screen 2101The adjustable inclined screen is characterized in that the size of the screen hole of the raking fence inclined screen is adjustable, the size of the screen hole of the raking fence inclined screen directly influences the grade of raw ore and the manual sorting difficulty of a subsequent automatic overturning screen platform, and the size of the screen hole of the inclined screen can be flexibly regulated according to actual ore dressing requirements such as the whole particle size distribution of the raw ore and the grade requirement for obtaining the raw ore, so that the effect of obtaining the raw ore with higher grade and remarkably reducing the manual sorting difficulty is achieved. It should be noted that, in the present invention, the distance between the two adjacent screen bars refers to the shortest distance between the two adjacent screen bars.
According to another embodiment of the present invention, the inclined angle of the pickoff fence 210 can be 28 to 36 degrees, for example, 28 degrees, 29 degrees, 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees or 36 degrees, and the interval L between two adjacent first bars 2111The thickness of the inclined sieve can be 12-18 cm, for example, 12cm, 13cm, 14cm, 15cm, 16cm, 17cm or 18cm, and the inventor finds that the larger the inclination angle of the raking inclined sieve is, the higher the ore sliding speed is, the larger the amount of ore flowing into the automatic sieve turning platform is, the poorer the ore dressing and screening effects are, and the greater the difficulty of subsequent manual sorting is; and along with the inclination that takes off the fence inclined screen diminishes, ore landing speed also diminishes, the ore of small particle size can fully fall into raw ore storage bin, though can improve the screening effect, but can obviously reduce screening efficiency, and still can lead to some ore to be difficult to fall into automatic sieve turning platform from the swift current smoothly, influence the automatic screening efficiency who takes off the fence inclined screen, and through the inclination of controlling the fence inclined screen of taking off 28 ~ 36 degrees, both can avoid ore landing speed too fast to influence screening effect and the higher raw ore grade who obtains, reduce the follow-up artifical degree of difficulty of selecting, can also ensure that the bold ore on the sieve can smooth landingAnd the automatic screen overturning platform realizes automatic mineral separation of the raking fence inclined screen. Further, the inventor also finds that if the spacing between the screen bars is too small, the screen holes are smaller, the grade of the obtained raw ore is higher, and conversely, the larger the large ore blocks on the automatic overturning screen platform are, the raw ore with relatively larger particle size is retained on the inclined screen surface and then slides to the automatic overturning screen platform, so that the difficulty of manual sorting is greatly increased; and if the interval of grating is too big, the sieve mesh is also great, will lead to too much barren rock to fall into the former ore storage storehouse, leads to the former ore grade to obviously reduce, the utility model discloses in be above-mentioned scope through control grating interval, both can obtain the former ore of higher grade, can show again to reduce the manual work and select the degree of difficulty. Preferably, the distance between any two adjacent first screen bars can be the same, and the specifications of the screen bars can also be the same, so that the uniformity of the obtained raw ore can be further improved. In addition, it should be noted that the length of the middle pickoff fence inclined screen 210 along the inclined direction of the inclined screen is not particularly limited, and those skilled in the art can select the length according to actual needs.
According to another embodiment of the present invention, as shown in fig. 5, the side of the pickoff fence inclined screen 210 may further be provided with a sidewalk 230, so that it is more convenient to replace the first screen bar or clean the ore retained on the screen surface.
According to the embodiment of the utility model, when taking off the bold barren and falling down to automatic turnover screen on the fence inclined screen, automatic turnover screen is the horizontality, and bold barren and ore slide into the automatic turnover screen platform in below through taking off fence inclined screen sifter, select by the manual work further to pick up the bold ore into the raw ore storehouse, then overturn through the automatic turnover screen of electric block control, pour the barren rock on the automatic turnover screen into the barren storehouse.
According to an embodiment of the present invention, as understood by referring to fig. 3 and 6, the automatic turnover screen 220 may include a plurality of second bars 221 spaced along the width direction of the automatic turnover screen 220, the distance between any two adjacent second bars 221 is smaller than the distance 211 between any two adjacent first bars, the gap between two adjacent second bars 221 forms the screen hole of the automatic turnover screen, so that the large waste rock and ore sliding down from the pickoff fence inclined screen can be retained on the automatic turnover screen platform, and the large waste rock is prevented from entering the raw ore storage bin, as understood by referring to fig. 3 and 6, a long strip-shaped screen hole can be formed between two adjacent second bars 221 in the automatic turnover screen 220, and the cross section of the screen hole can be a structure with a narrow top and wide bottom, the inventor finds that by forming the long strip-shaped screen hole, not only the inclined screen structure can be simplified, but also when small-particle-diameter ore sliding down to the automatic turnover screen when the particle size is smaller than the screen hole of the automatic turnover screen, the raw ore storage bin can be used for enabling the small-particle-size raw ore to fall into more smoothly, the situation that the small-particle-size raw ore is clamped in the sieve pores due to uneven particle sizes and then influences the smoothness of the sieve surface of the automatic turnover sieve and the sliding path of large ore on the raking fence inclined sieve is avoided, and the safety and the operation efficiency during manual re-selection are guaranteed.
According to the utility model discloses a still another embodiment, the cross-section of every second ribbon 221 can be respectively independently for falling the trapezium structure in the automatic sieve 220 that turns over, not only can ensure from this that the sieve mesh cross-section that forms is under narrow wide structure, can also make the sieve mesh grow gradually along the direction aperture towards former ore storage storehouse, can more be favorable to the former ore of small-grain diameter to fall into former ore storage storehouse smoothly from this, avoids appearing the problem that the former ore of small-grain diameter blockked up the automatic sieve mesh that turns over of sieve. Further, the second screen bars 221 may also be trapezoidal steel with a large face facing upwards, and the thickness of the second screen bars 221 is preferably smaller than that of the first screen bars 211, and the inventor finds that, after being screened by the pickoff fence inclined screen, seventy percent or even more than eighty percent of the raw ores can fall into a raw ore storage bin, large waste rocks or ores which fall onto the automatic turnover screen only account for a small part of the treatment capacity of the raking fence inclined screen, even if the large waste rocks or ores slide on the automatic turnover screen, the abrasion to the automatic turnover screen is small, and the large waste rocks or ores slide to the automatic turnover screen platform and then can stand still, so that the abrasion to the automatic turnover screen can be greatly reduced, and the automatic turnover screen can be ensured to have better strength, wear resistance and service life by adopting the inverted trapezoidal interface screen bars with small thickness, meanwhile, the automatic overturning sieve is light due to the adoption of the trapezoid steel with small thickness, so that the overturning and falling of the automatic overturning sieve are facilitated.
According to the utility model discloses a still another embodiment, the cross-section of every second ribbon 221 can independently be the I-shaped structure respectively in the automatic sieve that turns over 220, for example every second ribbon 221 can be respectively independently for big face up's I-steel, adopts big face up's I-steel also to make the sieve mesh cross-section form under the narrow width structure, and, as above, adopt the I-steel as the second ribbon also can ensure that automatic sieve that turns over has better intensity, wearability and life, simultaneously compare in trapezoidal steel, the I-steel is more light, and more be favorable to the monolithic stationary of automatic sieve that turns over and the upset and the fall back of automatic sieve that turns over, and the comprehensive technological effect is better, consequently can prefer big face up's I-steel to use as the second ribbon.
According to another embodiment of the present invention, each second screen bar 221 in the automatic overturning screen 220 can be separately and independently fixedly connected to the automatic overturning screen 220, because the screen surface of the automatic overturning screen can be overturned when dumping the waste rocks, the stability of the screen bars and the automatic overturning screen needs to be strictly ensured, the automatic overturning screen can be overturned and fallen back as a whole by fixedly connecting the screen bars to the automatic overturning screen, and the screen bars are prevented from falling off in the overturning process, so that the safety during the operation of the automatic overturning screen and the service life of the automatic overturning screen are significantly improved; preferably, the second screen bars 221 made of steel may be welded to the automatic flipper 220, whereby the stability of the automatic flipper during the flipping and falling process may be greatly improved.
According to the utility model discloses a still another embodiment, the distance between automatic turnover screen 220 front end and the pickoff fence inclined screen tail end can be not more than 5cm, for example can be 1cm, 1.5cm, 2cm, 2.5cm, 3cm, 3.5cm, 4cm, 4.5cm or 5cm etc. preferably 3 ~ 5cm, and wherein this distance can be for horizontal interval, both can avoid dropping to former ore storage storehouse by the bold barren rock of pickoff fence inclined screen landing from this, still does not influence the free activity of automatic turnover screen.
According to the utility model discloses a still another concrete embodiment, the utility model discloses well automatic sieve turnover 220 does not receive special restriction with the coupling assembling 223 of concrete, and the technical personnel in the field can select according to actual need, only need satisfy automatic sieve turnover 220 can rotate and then realize empting of barren rock around coupling assembling 223 under electric block 224's control can. For example, the connection assembly 223 between the automatic turnover screen 220 and the concrete partition wall may be a hinge, so that when the waste rock needs to be dumped, the electric hoist on the lifting truss is connected with the connection piece at the front end of the automatic turnover screen and lifts the automatic turnover screen, so that the automatic turnover screen rises and falls around the hinge, and the purpose of dumping large waste rock into the waste rock bin is achieved.
According to the utility model discloses a still another concrete embodiment, automatic sieve turnover 220 can be established in the below of automatic sieve turnover 220 with the coupling assembling 223 of concrete partition wall, the length that automatic sieve turnover 220 tail end extends to coupling assembling 223 outside can be less than the height that coupling assembling 223 is located on the concrete partition wall, not only can realize the free upset and the fall back of automatic sieve turnover from this, can also utilize coupling assembling to play certain supporting role to the tail end of free sieve turnover, can also avoid automatic sieve turnover tail end to stretch out the overlength and restrict the automatic rotation angle of sieve turnover simultaneously, influence the barren rock effect of overturning.
According to another embodiment of the present invention, the distance between two adjacent second bars 221 in the automatic turnover screen 220 may be 5-14 cm, for example, 6cm, 7cm, 8cm, 9cm, 10cm, 11cm, 12cm, or 13cm, and preferably 5-10 cm. The automatic sieve overturning mainly used for manually selecting massive waste stones and overturning the waste stones, not only needs to consider the realization of automatic sieve overturning from the horizontal direction to the overturning and falling back of a waste stone bin in the design process, but also needs to consider the smoothness and safety of manual selection, namely, on the one hand, the massive waste stones needing to be scraped off the sliding of the inclined sieve overturning are intercepted on the sieve surface of the automatic sieve overturning, and on the other hand, when the massive ores are picked up into a raw ore storage bin through manual selection, the operation safety of workers is ensured.
According to the utility model discloses a still another embodiment, refer to fig. 3 and show, ore dressing device 200 can include at least one take off fence inclined screen 210 and two at least automatic turnover screens 220 of arranging side by side, every automatic turnover screen 220 can be equipped with respectively independently with connecting piece 222 that electric block 224 matches and with concrete partition wall swing joint, can make two at least automatic turnover screens can alternate use from this, when one of them automatic turnover screen need carry out the barren rock and turn over and fall, it still can continue to accept the big barren rock and the ore of taking off fence inclined screen landing and carry out artifical the selection to have at least one automatic turnover screen, thereby can further improve ore dressing efficiency, realize that the serialization of ore dressing operation goes on. It should be noted that the width directions of the automatic turnover screen and the pickoff fence inclined screen are the same, and in addition, the number of the pickoff fence inclined screen and the automatic turnover screen in the mineral separation device is not particularly limited, and a person skilled in the art can select the pickoff fence inclined screen and the automatic turnover screen according to actual needs, for example, the pickoff fence inclined screen and the automatic turnover screen can be selected according to factors such as mineral separation treatment capacity and space environment of a mineral separation site, specifically, the pickoff fence inclined screen and the automatic turnover screen can be arranged in a one-to-one correspondence manner, and a setting manner that one pickoff fence inclined screen corresponds to a plurality of automatic turnover screens. Preferably, the automatic turnover screen 220 may extend at least to the end of the pickoff fence inclined screen 210 at both sides in the width direction thereof, so as to further ensure that ore sliding down from the pickoff fence inclined screen can fall onto the automatic turnover screen.
According to another embodiment of the present invention, referring to fig. 3, the distance L between two adjacent automatic turnover screens2The thickness of the waste rock is not more than 8cm, for example, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm or 8cm, so that the alternative operation of the two automatic turnover sieves is not influenced, the waste rock can be prevented from sliding off from a gap between the automatic turnover sieves, and the operation safety of operators is ensured. Wherein, the distance L between two adjacent automatic turnover screens2It can be understood as the minimum distance between two adjacent screen bars of two automatic turnover screens.
According to the utility model discloses a still another concrete embodiment, the connecting piece 222 that matches with electric block 224 on every automatic sieve turnover 220 can set up in pairs, and connecting piece 222 that sets up in pairs can the symmetric distribution in the both sides of automatic sieve turnover 220 width direction, can further improve the uniformity of automatic sieve turnover in upset and fall back in-process rotation angle from this, avoids automatic sieve turnover atress inequality to take place to incline and then leads to barren rock landing to former ore storage storehouse.
According to a specific embodiment of the present invention, referring to fig. 2 and 3, the supporting beam 600 may include a beam 610 and a supporting column 620, the beam 610 may be disposed along the width direction of the pickpocket inclined screen 210, the tail end of the pickpocket inclined screen 210 is supported against one side of the beam 610, the front end of the automatic overturning screen 220 is supported by the other side of the beam 610, the supporting column 620 is disposed below the beam 610 and supports the beam 620, wherein the supporting column may be directly disposed in the raw ore storage bin to support the beam, it should be noted that one side of the beam 610 close to the pickpocket inclined screen 210 is higher than one side of the beam close to the automatic overturning screen 220, thereby, the pickpocket inclined screen is fixed by the supporting beam and supports the automatic overturning screen, both end-to-end connection of the automatic overturning screen and the pickpocket inclined screen can be realized, and stability of the ore dressing apparatus is further facilitated.
According to another embodiment of the present invention, referring to fig. 3, the beam 610 may at least satisfy one of the following conditions: one side of the cross beam 610 close to the pickoff fence inclined screen 210 may be provided with a plurality of first grooves (not shown) suitable for the first screen bars 211 to be embedded, so that the first screen bars can be embedded in the first grooves to fix the lower end of the pickoff fence inclined screen; further, one side of the cross beam 610 close to the automatic upender 220 may be provided with a plurality of second grooves (not shown) suitable for the second screen bars 221 to be embedded, so that when the automatic upender is in a horizontal position, the second screen bars can be embedded into the second grooves to improve the stability of automatic upending in the sliding and manual sorting processes of large ores and waste rocks, and ensure the operation safety; two platforms with different heights can be respectively formed on one side of the beam 610 close to the pickpocket inclined screen 210 and one side close to the automatic overturning screen 220, and the vertical arrangement of the pickpocket inclined screen and the automatic overturning screen, the fixation of the tail end of the pickpocket inclined screen and the support of the front end of the automatic overturning screen are realized through the platforms with different heights. In addition, referring to fig. 3, the height of the cross beam 610 close to the side of the pickpocket inclined screen 210 is greater than the height of the automatic overturning screen 220 when the automatic overturning screen is located at a horizontal position, so that the automatic overturning screen platform can be ensured to be located below the tail end of the pickpocket inclined screen, and large waste rocks and ores on the pickpocket inclined screen can be more favorably smoothly slid to the free overturning screen.
According to the utility model discloses a specific embodiment, refer to fig. 3 and show, the middle part of taking off fence inclined screen 210 can be equipped with fixed beam 700, fixed beam 700 can be located and take off fence inclined screen below and be on a parallel with crossbeam 610 and arrange, can be equipped with a plurality of third recesses (not shown) that are suitable for the embedding of first grizzly bar on the fixed beam 700, adopt above-mentioned setting can further improve the steadiness of taking off fence inclined screen on the basis that does not influence the landing of ore, guarantee operation safety, improve the life of taking off fence inclined screen simultaneously.
According to the utility model discloses a specific embodiment, the tail end tip of automatic sieve turnover 220 can extend to waste rock storehouse 400 top, can further ensure from this that the waste rock on the automatic sieve turnover all can the landing to waste rock storehouse.
According to the utility model discloses a specific embodiment, the discharge end of raw ore warehouse 300 can link to each other with the ore removal device in another mining middle section of raw ore warehouse 300 place mining middle section below, can export the raw ore that will obtain through the ore removal tunnel in another mining middle section of raw ore warehouse place mining middle section below from this.
According to the utility model discloses a specific embodiment, as shown in FIG. 4, the waste rock storehouse 400 can include first waste rock storehouse 410 and second waste rock storehouse 420, the lower part at inclined shaft hoisting device 500 can be established to the discharge end of first waste rock storehouse 410, the second waste rock storehouse can be located inclined shaft hoisting device 500 upper portion, wherein, first waste rock storehouse 410 mainly used keeps in the waste rock after the ore dressing, second waste rock storehouse 420 mainly used keeps in the waste rock that is used for backfilling the collecting space area, inclined shaft hoisting device 500 is suitable for transporting the waste rock in first waste rock storehouse 410 to second waste rock storehouse 420, the waste rock in second waste rock storehouse 420 is suitable for transporting to the collecting space area through the mine car. Therefore, the goaf can be timely backfilled with the waste rocks pre-thrown by the pre-throwing waste system, so that the problem of filling materials in the mine goaf is solved, the quantity of the waste rocks generated from the goaf is reduced, the mine goaf can be effectively treated, and the lifting pressure of the vertical shaft is relieved.
According to another embodiment of the present invention, as shown in fig. 4, the slant well lifting device 500 comprises a winch 510, a side dump car 520 and a rail 530, the side dump car 520 is driven by the winch 510 to reciprocate along the rail between the first waste rock storage 410 and the second waste rock storage 420, and the waste rock in the first waste rock storage 410 is transferred to the second waste rock storage 420 through the slant well 540 and the lifting device, wherein the side dump car 520 can further improve the level of mechanization and reduce the manual labor. In addition, the inclination angle and the size of the middle inclined shaft hoisting device 500 of the present invention are not particularly limited, and those skilled in the art can select the inclination angle and the size according to actual needs. Furthermore, it still needs to explain, the utility model discloses the inclined shaft hoisting device that well adoption and a plurality of mining middle sections that use among the existing mining effect step-wise distribute is different, and inclined shaft hoisting device among the existing mining operation is used for the ore removal of former ore more, and the utility model discloses well adoption shaft carries out the ore removal of former ore, and inclined shaft hoisting device 500 independently distributes respectively in each mining middle section, and only is used for the transfer of barren rock to the realization is used for the purpose of this mining middle section goaf's backfill with the barren rock in specific mining middle section.
According to the utility model discloses a still another embodiment, at least one bottom in raw ore warehouse 300 and barren rock storehouse 400 can be equipped with the vibration and put ore bucket 800, for example can all set up the vibration and put ore bucket 800 bottom raw ore warehouse 300, first barren rock storehouse 410 and second barren rock storehouse 420, through the automatic device of falling the ore deposit, take off the fence inclined screen, automatic sieve that turns over, the combination of ore bucket and inclined shaft promotion transportation etc. is put in the vibration, improvement mine mechanization level that can be very big, reduce operation personnel intensity of labour, better social and economic value have.
According to the utility model discloses a further concrete embodiment, the discharge end of raw ore warehouse 300 can link to each other with the ore removal device in another mining middle section below the mining middle section that raw ore warehouse 300 is located, can promote the raw ore output that will obtain through the shaft through the ore removal tunnel in another mining middle section below the mining middle section that raw ore warehouse is located from this.
To sum up, the mine underground raw ore of the above-mentioned embodiment of the utility model is thrown useless and transfer system in advance has following advantage at least: 1. the raw ore is pre-polished with a part of waste rock in advance in the underground, so that the grade of the protruding raw ore is improved, the ore dressing principle that the waste rock can be polished in advance is realized in the underground, and the production cost of an ore dressing plant is effectively reduced; 2. the quantity of the waste rocks discharged from the pits is reduced, and the lifting pressure of the vertical shaft is relieved; 3. and the pre-cast waste rock is backfilled in the goaf in time, so that the mine goaf can be effectively treated. The volume of a mined-out area of a mine is increased day by day after years of large-scale mining, and the mined-out area needs to be backfilled urgently, the waste rock selected by the crude ore pre-waste-throwing system of the embodiment of the utility model solves the problem of filling materials, is transported by an inclined shaft lifting and transporting system, and is filled by filling and cutting the mined-out area, so that the mined-out area of the mine is guaranteed to be treated, the safety of the mined-out area is guaranteed, and the mined-out area has better social and economic benefits; 4. by combining the automatic ore dumping device, the raking fence inclined screen, the automatic screen overturning, the vibrating ore bucket, the inclined shaft lifting and transporting and the like, the mechanization level of the mine is greatly improved, and the labor intensity of operators is reduced; 5. including a plurality of subsystems in the mine mining system, for example mining subsystem, ore dressing subsystem, ore removal subsystem and ventilation subsystem etc. can with the utility model provides a mine is in pit that the crude ore is thrown useless in advance and the movement system is arranged in the ore mining system as the ore dressing subsystem.
The solution of the present invention will be explained with reference to the following examples. It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
Example 1
Set up to tin panning hole tungsten ore 056 middle section to 106 middle sections the utility model discloses go up mine underground raw ore throw useless system in advance, as shown in fig. 7, including the automatic device of falling the ore deposit of raw ore, take off the fence inclined screen, turn over the sieve automatically, raw ore storage storehouse, barren rock storehouse, vibration put ore bucket, inclined shaft hoisting device etc.. The current production scale of the tin-washing pit tungsten ore is 50 ten thousand t/a, and underground mining, footrill + blind shaft + blind inclined shaft combined development and shallow hole shrinkage mining are adopted. Wherein the inclination angle of the grate bars of the pickoff fence is 32 degrees, and the spacing between the grate bars is 15 cm; the screen surface of the automatic turnover screen is formed by upward large I-steel surfaces at intervals of 12cm, the I-steel is welded on the automatic turnover screen, the head end of the automatic turnover screen is connected with and controlled by an electric hoist on a hoisting truss through a connecting piece, and the tail end of the automatic turnover screen is connected with and mixed with an electric hoist on the truss through a mixerThe hinge between the concrete partition walls is movably connected, and the turnover screen is controlled to rise and fall around the hinge by an electric hoist; the bottom of the raw ore storage bin is communicated with a 056 middle section transportation roadway; the number of the waste rock bins 1 is located at the tail end of the automatic turnover screen and used for storing waste rocks, and the number of the waste rock bins 2 is located at the upper part of the inclined shaft lifting and transporting system and used for storing and transporting waste rocks after primary selection for filling; three vibration ore discharging hoppers are arranged and are respectively arranged at the bottoms of the raw ore storage bin, the No. 1 waste rock bin and the No. 2 waste rock bin and used for automatic ore discharging; the inclined shaft hoisting device consists of an inclined shaft, a rope way, a winch, a loose wheel and a 2.7m shaft3The side dump type mine car is mainly used for transferring the waste rocks in the waste rock bin 1 to the waste rock bin 2 and transferring the waste rocks in the waste rock bin 2 to the gob in the middle section 106.
When the system is adopted for pre-throwing the raw ore, the raw ore transported by a 106 middle-section transportation roadway mine car is transferred through an automatic ore pouring device and poured into a raking inclined screen surface, the small-particle-size raw ore directly enters a raw ore storage bin through screen strip gaps, the raw ore storage bin ore is placed into the mine car through a 056 middle-section vibration ore placing hopper, the ore is transferred to a ground selecting factory through a vertical shaft, large waste stones and ore slide into an automatic turnover screen platform below through the inclined screen surface, then the ore on the platform is further picked into the raw ore storage bin through manual selection, the waste stones in the automatic turnover screen are lifted through an electric hoist and poured into a 1# waste stone bin, and the waste stones are placed into a 2.7m storage bin through a vibration ore placing hopper3In the side dump type mine car, the waste rocks in the 2# waste rock bin and the 2# waste rock bin are transferred to the 2# waste rock bin through the inclined shaft lifting and transporting system and are put into a 106 middle section of 0.75m through a vibrating ore placing hopper3In the mine car, the mine car is transferred to each goaf through a locomotive to fill the goaf.
The underground raw ore pre-throwing waste system is put into test operation in 2017 in 8 months, and the change situation of the raw ore grade is as follows: 0.388% in 2016, 0.419% in 2017, 0.520% in 2018, 0.500% in 2019, and normal operation of the raw ore pre-throwing waste system in 2018 and 2019, wherein the raw ore grade tends to be stable and is improved by about 0.1% compared with the original ore grade before comparison. In addition, the underground crude ore pre-throwing waste system has 5828 tons of waste stones pre-thrown in 2017, 22747 tons of waste stones pre-thrown in 2018 and 19581 tons of waste stones pre-thrown in 2019, and the waste throwing rate is about 15%; the method reduces the waste rock caving amount by about 2 ten thousand tons every year while improving the grade of the raw ore, and can save about 26 ten thousand yuan of lifting and transporting cost every year according to the lifting and transporting cost of 13 yuan/ton; for the fixed lifting capacity of the vertical shaft, the waste stone is replaced by the crude ore lifting outlet, and the yield of tungsten concentrate (65 degrees) can be increased every year in the mine: 20000 ton x 0.5% (raw ore grade) x 86.5% (ore dressing recovery) x 95% (concentration recovery)/0.65% ═ 126.4 ton, calculated according to tungsten concentrate (65 °) market price 7.5 ten thousand yuan/ton, annual increase output value is 126.4 ton x 7.5 ten thousand yuan/ton 948 ten thousand yuan.
In conclusion, through setting the waste pre-throwing system for the underground mine raw ore of the embodiment of the utility model, the underground raw ore is subjected to waste pre-throwing treatment, the waste throwing rate reaches about 15%, the grade of the protruding raw ore is improved, the lifting pressure of a vertical shaft is relieved, and the production cost of enterprise units is reduced; the pre-cast waste rock is backfilled in the goaf in time, so that the quantity of the waste rock which exits from the pits is reduced, and the mine goaf can be effectively treated; the construction of the underground raw ore pre-waste-throwing system greatly improves the mechanization level of the mine, reduces the labor intensity of operators and has better social and economic values.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a useless and transit system of mine underground raw ore throwing in advance which characterized in that includes:
an automatic crude ore dumping device;
storing raw ore in a warehouse;
a concrete partition wall is arranged between the waste rock bin and the raw ore storage bin;
the ore dressing device, the ore dressing device is established raw ore warehouse top just is located the automatic device below that falls of raw ore, the ore dressing device includes the raking bar inclined screen and the automatic sieve that turns over that arrange from beginning to end:
the raking fence inclined screen is obliquely arranged, and the upper end of the raking fence inclined screen corresponds to the discharge end of the automatic crude ore dumping device;
the automatic overturning sieve is positioned below the pickpocket inclined sieve, the front end of the automatic overturning sieve is arranged at the tail end of the pickpocket inclined sieve, the mesh aperture of the automatic overturning sieve is smaller than that of the pickpocket inclined sieve, the front end of the automatic overturning sieve is provided with a connecting piece matched with the electric hoist, the tail end of the automatic overturning sieve is arranged above the concrete partition wall and is movably connected with the concrete partition wall, and the automatic overturning sieve is suitable for realizing overturning and falling from a horizontal position to a waste rock bin around the connecting component of the automatic overturning sieve and the concrete partition wall under the control of the electric hoist;
the supporting beam is arranged between the pickoff fence inclined screen and the automatic overturning screen and is used for fixing the lower end of the pickoff fence inclined screen and supporting the front end of the automatic overturning screen;
the inclined shaft hoisting device, establish inclined shaft hoisting device's lower part the discharge end in barren rock storehouse, inclined shaft hoisting device is used for realizing the transportation of barren rock in the barren rock storehouse to the collecting space area.
2. The mine underground raw ore pre-throwing waste and transferring system according to claim 1, wherein the pickoff fence inclined screen comprises a plurality of first screen bars arranged at intervals in the width direction of the pickoff fence inclined screen, the automatic turnover screen comprises a plurality of second screen bars arranged at intervals in the width direction of the automatic turnover screen, and the distance between any two adjacent second screen bars is smaller than that between any two adjacent first screen bars.
3. The mine downhole run-of-mine pre-dumping and diversion system of claim 2, wherein said support beam comprises:
the cross beam is arranged along the width direction of the pickpocket fence inclined screen, the tail end of the pickpocket fence inclined screen is abutted against one side of the cross beam, and the front end of the automatic overturning screen is supported by the other side of the cross beam;
and the supporting columns are arranged below the cross beam and support the cross beam.
4. The mine downhole run-of-mine pre-dumping and diverting system according to claim 3, wherein at least one of the following conditions is met:
a plurality of first grooves suitable for embedding the first screen bars are formed in one side, close to the raking fence inclined screen, of the cross beam;
a plurality of second grooves suitable for embedding the second screen bars are formed in one side, close to the automatic turnover screen, of the cross beam;
the height of the cross beam close to one side of the pickoff fence inclined screen is larger than that of the automatic turnover screen when the automatic turnover screen is positioned at a horizontal position.
5. The mine underground raw ore pre-throwing waste and transferring system according to claim 4, wherein a fixed beam is arranged in the middle of the pickoff fence inclined screen, the fixed beam is positioned below the pickoff fence inclined screen and arranged parallel to the cross beam, and a plurality of third grooves suitable for embedding the first screen bars are formed in the fixed beam.
6. The mine downhole raw ore pre-dumping and transporting system according to any one of claims 1 to 5, wherein a tail end of the automatic flipper extends above the waste rock bin.
7. The mine underground raw ore pre-throwing waste and transferring system according to claim 1, wherein the ore dressing device comprises at least one raking fence inclined screen and at least two automatic overturning screens arranged side by side, and each automatic overturning screen is independently provided with a connecting piece matched with the electric hoist and movably connected with the concrete partition wall.
8. The mine downhole run-of-mine pre-dumping and diverting system according to claim 7, wherein at least one of the following conditions is met:
the distance between two adjacent automatic turnover screens is not more than 8 cm;
the two sides of the automatic turnover screen in the width direction at least extend to the end part of the pickoff fence inclined screen;
and the connecting pieces matched with the electric hoist on each automatic turnover screen are arranged in pairs, and the connecting pieces arranged in pairs are symmetrically distributed on two sides of the automatic turnover screen in the width direction.
9. The system for pre-throwing waste and transferring crude ore under mine according to claim 1 or 8, wherein the waste rock bin comprises a first waste rock bin and a second waste rock bin, wherein the discharge end of the first waste rock bin is arranged at the lower part of the inclined shaft lifting device, the second waste rock bin is arranged at the upper part of the inclined shaft lifting device, the inclined shaft lifting device is suitable for transferring waste rock in the first waste rock bin to the second waste rock bin, and waste rock in the second waste rock bin is suitable for transferring to a goaf through a mine car.
10. The mine downhole run-of-mine pre-dumping and diverting system according to claim 9, wherein at least one of the following conditions is met:
at least one of the raw ore storage bin and the waste rock bin is provided with a vibrating ore hopper at the bottom;
and the discharge end of the raw ore storage bin is connected with the ore removal device of the other mining middle section below the mining middle section where the raw ore storage bin is located.
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| CN202022980648.3U CN214273639U (en) | 2020-12-08 | 2020-12-08 | Mine underground raw ore pre-throwing waste and transferring system |
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| CN202022980648.3U CN214273639U (en) | 2020-12-08 | 2020-12-08 | Mine underground raw ore pre-throwing waste and transferring system |
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