CN114320299B - Method and device for reducing mixing rate of waste rock in mining of small river siderite - Google Patents
Method and device for reducing mixing rate of waste rock in mining of small river siderite Download PDFInfo
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- CN114320299B CN114320299B CN202111364979.7A CN202111364979A CN114320299B CN 114320299 B CN114320299 B CN 114320299B CN 202111364979 A CN202111364979 A CN 202111364979A CN 114320299 B CN114320299 B CN 114320299B
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- 238000005065 mining Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000010878 waste rock Substances 0.000 title claims abstract description 13
- 229910021646 siderite Inorganic materials 0.000 title claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000005422 blasting Methods 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 239000004575 stone Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 16
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000002360 explosive Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 20
- 230000008569 process Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The invention relates to the technical field of iron ore mining, in particular to a method and a device for reducing the mixing rate of waste rock in mining of small river siderite, and the method comprises the following steps: the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely the ore body is pushed from the upper disc of the ore body to the lower disc of the ore body; in the invention, the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely, the mining sequence is pushed from the upper ore body disc to the lower ore body disc. Ore and waste stone are respectively perforated, sectional blasting, mining and stripping are clear, medium-length hole blasting is changed from vertical drilling into inclined drilling, the inclination angle of blast holes is based on the inclination angle of ore bodies, the blasting height is controlled within 10m, the bore hole diameter is phi 90, the chassis resistance line is valued according to 2.25m, the row spacing is valued according to 1.8m, the hole spacing is valued according to 1.4m, the ore quality can be effectively improved after implementation, the waste throwing rate is reduced to about 25% from the original 35%, blasting operation is greatly reduced, secondary crushing amount is reduced, production cost is reduced, and mining benefit is improved.
Description
Technical Field
The invention relates to the technical field of iron ore mining, in particular to a method and a device for reducing mixing rate of waste rock in mining of small river siderite.
Background
The ore required by mining company production mainly comes from small river side iron ore open-air mining field, the annual requirement is about 75 ten thousand tons, the ore body is gradually narrowed along with the reduction of the mining platform, the complexity is increased, the ore is mainly primary ore, the mining cost is increased along with the increase of the mining cost, and the mixing of waste rock in the ore directly influences the ore-out grade, so the mixing rate of the mining waste rock is reduced, the ore quality is improved, the cost is reduced (mainly the freight cost and the ore dressing cost), the high-quality good ore is extremely important, the application of iron ore is more extensive along with the development of society, and therefore, the requirement of a method and a device for reducing the mixing rate of the waste rock in the small river side iron ore mining is growing.
The existing iron ore mining method is to mine along the trend of ore bodies, ores and waste stones are mixed together during drilling and blasting when the ore bodies are mined along the trend of the ore bodies, so that the quality of the ores is reduced, the waste throwing rate reaches 35%, and the waste of resources is caused.
Disclosure of Invention
The invention aims to provide a method and a device for reducing the mixing rate of waste rock in mining of small river siderite, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a method and a device for reducing the mixing rate of waste rock in mining of small river siderite,
step one: the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely the ore body is pushed from the upper disc of the ore body to the lower disc of the ore body;
step two: respectively and obliquely drilling ores and waste stones by using a drilling device, wherein the inclination angle of the blast holes is based on the inclination angle of the ore body;
step three: and (3) filling explosive into the hole completed in the step two, and blasting.
Preferably, the hole diameter of the drill hole is phi 90mm, the chassis resistance line is valued according to 2.25m, the row spacing is valued according to 1.8m, and the hole spacing is valued according to 1.4 m.
Preferably, the drilling device comprises a supporting frame, one end of the supporting frame is rotationally connected with a fixing frame, the rear end of the fixing frame is fixedly connected with a second protective shell, the inner side of the second protective shell is fixedly connected with a third motor, the tail end of a main shaft of the third motor is fixedly connected with a gear, the outer side of the gear is meshed with a toothed ring, and the toothed ring is fixedly connected with the supporting frame.
Preferably, the rear end fixedly connected with fixed plate of fixed frame, the top fixedly connected with third protective housing of fixed plate, the inboard fixedly connected with fourth motor of third protective housing, the terminal fixedly connected with lead screw of main shaft of fourth motor, the outside spiral connection of lead screw has the sleeve, and sleeve and fixed plate sliding connection, telescopic bottom fixedly connected with fixture block, and fixture block and gear block.
Preferably, the one end fixedly connected with first motor of fixed frame, the terminal fixedly connected with adjusting screw of main shaft of first motor, adjusting screw's outside screwed connection has the movable block, the first protective housing of bottom fixedly connected with of movable block, the inboard fixedly connected with second motor of first protective housing, the terminal fixedly connected with pivot of main shaft of second motor, the other end fixedly connected with drill bit of pivot, the outside sliding connection of pivot has linear bearing, and linear bearing and fixed frame fixed connection.
Preferably, the bottom end fixedly connected with slider of first protective housing, the inboard sliding connection of slider has the guide rail, and guide rail and fixed frame fixed connection.
Preferably, the top fixedly connected with oil storage shell of movable block, the inboard fixedly connected with of oil storage shell crosses the oil net, the top of crossing the oil net is provided with cotton piece, the inboard screwed connection in top of oil storage shell has the end cap, the top fixedly connected with second pull ring of end cap, the bleeder vent has been seted up to the inboard of end cap.
Preferably, an end cover is spirally connected to the inner side of the top end of the fixing frame, and a first pull ring is fixedly connected to the top end of the end cover.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely, the mining sequence is pushed from the upper ore body disc to the lower ore body disc. Ore and waste stone are respectively perforated, sectional blasting, mining and stripping are clear, medium-length hole blasting is changed from vertical drilling into inclined drilling, the inclination angle of blast holes is based on the inclination angle of ore bodies, the blasting height is controlled within 10m, the bore hole diameter is phi 90, the chassis resistance line is valued according to 2.25m, the row spacing is valued according to 1.8m, the hole spacing is valued according to 1.4m, the ore quality can be effectively improved after implementation, the waste throwing rate is reduced to about 25% from the original 35%, blasting operation is greatly reduced, secondary crushing amount is reduced, production cost is reduced, and mining benefit is improved.
2. According to the invention, through the second protective shell, the third motor, the gear, the fixed plate, the clamping block, the third protective shell, the fourth motor, the screw rod and the sleeve, the drilling angle of the drill bit can be adjusted under the interaction of the gear and the toothed ring, so that the drilling requirement of a worker is met, the operation is simple, and the use of the worker is facilitated.
3. According to the invention, through the cotton block, the oil passing net, the oil storage shell, the second pull ring and the plug, lubricating oil can be added to the surface of the adjusting screw in the working process of the moving block and the adjusting screw through the oil storage shell, manual addition of a worker is not needed, and the use of the worker is facilitated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the mounting structure of the moving block of the present invention;
FIG. 3 is a schematic view of the installation structure of the cotton block of the present invention;
FIG. 4 is a schematic view of the mounting structure of FIG. 3 at A in accordance with the present invention;
FIG. 5 is a schematic side view of the mounting structure of the gear of the present invention;
FIG. 6 is a schematic view of the mounting structure of FIG. 5 at B in accordance with the present invention;
fig. 7 is a schematic structural diagram of the latch according to the present invention.
In the figure: 1-supporting frame, 2-universal wheel, 3-drill bit, 4-fixed frame, 5-first motor, 6-adjusting screw, 7-first protective housing, 8-second motor, 9-pivot, 10-linear bearing, 11-guide rail, 12-slider, 13-end cover, 14-first pull ring, 15-movable block, 16-ring gear, 17-cotton piece, 18-net, 19-oil storage housing, 20-second pull ring, 21-end cap, 22-second protective housing, 23-third motor, 24-gear, 25-fixed plate, 26-fixture block, 27-third protective housing, 28-fourth motor, 29-lead screw, 30-sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution:
a method and a device for reducing the mixing rate of waste rock in mining of small river siderite,
step one: the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely the ore body is pushed from the upper disc of the ore body to the lower disc of the ore body;
step two: respectively and obliquely drilling ores and waste stones by using a drilling device, wherein the inclination angle of the blast holes is based on the inclination angle of the ore body;
step three: and (3) filling explosive into the hole completed in the step two, and blasting.
Further, the bore diameter is phi 90mm, the chassis resistance line is valued according to 2.25m, the row spacing is valued according to 1.8m, and the bore spacing is valued according to 1.4 m.
Further, the drilling device comprises a support frame 1, one end of the support frame 1 is rotationally connected with a fixed frame 4, the rear end of the fixed frame 4 is fixedly connected with a second protective shell 22, the inner side of the second protective shell 22 is fixedly connected with a third motor 23, the tail end of a main shaft of the third motor 23 is fixedly connected with a gear 24, the outer side of the gear 24 is meshed with a toothed ring 16, and the toothed ring 16 is fixedly connected with the support frame 1.
Further, the rear end fixedly connected with fixed plate 25 of fixed frame 4, the top fixedly connected with third protective housing 27 of fixed plate 25, the inboard fixedly connected with fourth motor 28 of third protective housing 27, the terminal fixedly connected with lead screw 29 of main shaft of fourth motor 28, the outside spiral connection of lead screw 29 has sleeve 30, and sleeve 30 and fixed plate 25 sliding connection, the bottom fixedly connected with fixture block 26 of sleeve 30, and fixture block 26 and gear 24 block.
Further, the one end fixedly connected with first motor 5 of fixed frame 4, the terminal fixedly connected with adjusting screw 6 of main shaft of first motor 5, the outside screwed connection of adjusting screw 6 has movable block 15, the first protective housing 7 of bottom fixedly connected with of movable block 15, the inboard fixedly connected with second motor 8 of first protective housing 7, the terminal fixedly connected with pivot 9 of main shaft of second motor 8, the other end fixedly connected with drill bit 3 of pivot 9, the outside sliding connection of pivot 9 has linear bearing 10, and linear bearing 10 and fixed frame 4 fixed connection.
Further, the bottom end of the first protective shell 7 is fixedly connected with a sliding block 12, the inner side of the sliding block 12 is slidably connected with a guide rail 11, and the guide rail 11 is fixedly connected with the fixed frame 4.
Further, the top fixedly connected with oil storage shell 19 of movable block 15, the inboard fixedly connected with of oil storage shell 19 crosses oil net 18, the top of crossing oil net 18 is provided with cotton piece 17, the inboard screwed connection in top of oil storage shell 19 has end cap 21, the top fixedly connected with second pull ring 20 of end cap 21, the bleeder vent has been seted up to the inboard of end cap 21.
Further, an end cover 13 is spirally connected to the inner side of the top end of the fixing frame 4, and a first pull ring 14 is fixedly connected to the top end of the end cover 13.
The working flow is as follows: before the invention is used, the external power supply is used for supplying power, the inclination angle of the drill bit 3 is firstly adjusted according to the inclination angle of a drilled hole, the gear 24 is driven by the third motor 23 to rotate along the toothed ring 16, the gear 24 is driven by the fixed frame 4 to rotate around one end of the support frame 1, the fixed frame 4 is driven by the rotating shaft 9 to rotate around one end of the support frame 1 until the drill bit 3 is at a proper position, the sleeve 30 is driven by the fourth motor 28 to spirally rotate on the inner side of the sleeve 30 through the lead screw 29, the sleeve 30 is clamped together with the gear 24 through the clamping block 26, the limiting fixation of the gear 24 is realized through the clamping block 26, the situation that the gear 24 and the toothed ring 16 do not rotate mutually is ensured, the limiting fixation of the positions of the fixed frame 4 and the drill bit 3 is realized, then the drill bit 3 is driven by the second motor 8 through the rotating shaft 9, simultaneously, the first motor 5 gradually moves towards the right lower part through the adjusting screw rod 6, simultaneously, the moving block 15 gradually moves towards the inner side of the ore through the first protective shell 7, the second motor 8 and the rotating shaft 9, the first protective shell 7 also slides along the guide rail 11 through the sliding block 12, simultaneously, the cotton block 17 at the inner side of the oil storage shell 19 gradually drips lubrication on the surface of the adjusting screw rod 6 through the oil passing net 18 in the moving process of the moving block 15 along the adjusting screw rod 6, thereby realizing automatic lubrication of the adjusting screw rod 6, ensuring normal work between the moving block 15 and the adjusting screw rod 6, firstly taking out the end cover 13 from the inner side of the fixed frame 4 through the first pull ring 14 when the lubrication oil is required to be added to the inner side of the oil storage shell 19, then taking out the plug 21 from the inner side of the oil storage shell 19 through the second pull ring 20, then lubricating oil can be added to the inner side of the oil storage shell 19, so that the operation is simple, and the use of staff is convenient.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the invention, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the invention, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (6)
1. The drilling device is applied to reducing the mixing rate of waste rock in the mining of the small river siderite and is characterized by comprising a supporting frame (1), one end of the supporting frame (1) is rotationally connected with a fixed frame (4), the rear end of the fixed frame (4) is fixedly connected with a second protective shell (22), the inner side of the second protective shell (22) is fixedly connected with a third motor (23), the tail end of a main shaft of the third motor (23) is fixedly connected with a gear (24), the outer side of the gear (24) is meshed with a toothed ring (16), and the toothed ring (16) is fixedly connected with the supporting frame (1); the rear end of the fixed frame (4) is fixedly connected with a fixed plate (25), the top end of the fixed plate (25) is fixedly connected with a third protective shell (27), the inner side of the third protective shell (27) is fixedly connected with a fourth motor (28), the tail end of a spindle of the fourth motor (28) is fixedly connected with a screw rod (29), the outer side of the screw rod (29) is spirally connected with a sleeve (30), the sleeve (30) is in sliding connection with the fixed plate (25), the bottom end of the sleeve (30) is fixedly connected with a clamping block (26), and the clamping block (26) is clamped with a gear (24); the one end fixedly connected with first motor (5) of fixed frame (4), the terminal fixedly connected with adjusting screw (6) of main shaft of first motor (5), the outside screwed connection of adjusting screw (6) has movable block (15), the bottom fixedly connected with first protective housing (7) of movable block (15), the inboard fixedly connected with second motor (8) of first protective housing (7), the terminal fixedly connected with pivot (9) of main shaft of second motor (8), the other end fixedly connected with drill bit (3) of pivot (9), the outside sliding connection of pivot (9) has linear bearing (10), and linear bearing (10) and fixed frame (4) fixed connection.
2. Drilling device according to claim 1, characterized in that the bottom end of the first protective shell (7) is fixedly connected with a slide block (12), the inner side of the slide block (12) is slidingly connected with a guide rail (11), and the guide rail (11) is fixedly connected with the fixed frame (4).
3. Drilling device according to claim 1, characterized in that the top end of the moving block (15) is fixedly connected with an oil storage shell (19), the inner side of the oil storage shell (19) is fixedly connected with an oil passing net (18), the top end of the oil passing net (18) is provided with a cotton block (17), the inner side of the top end of the oil storage shell (19) is spirally connected with a plug (21), the top end of the plug (21) is fixedly connected with a second pull ring (20), and ventilation holes are formed in the inner side of the plug (21).
4. Drilling device according to claim 1, characterized in that the inside of the top end of the fixed frame (4) is screwed with an end cap (13), the top end of the end cap (13) being fixedly connected with a first pull ring (14).
5. An application method of the drilling device of any one of claims 1-4 in reducing mixing rate of waste rock in mining of small river siderite, which is characterized in that:
step one: the mining sequence is changed from the previous trend along the ore body to be vertical to the trend of the ore body, namely the ore body is pushed from the upper disc of the ore body to the lower disc of the ore body;
step two: respectively and obliquely drilling ores and waste stones by using a drilling device, wherein the inclination angle of the blast holes is based on the inclination angle of the ore body;
step three: and (3) filling explosive into the hole completed in the step two, and blasting.
6. The method for reducing the mixing rate of waste rock in mining of siderite in a river according to claim 5, wherein the hole diameter is Φ90mm, the chassis resistance line is 2.25m, the row pitch is 1.8m, and the hole pitch is 1.4 m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111364979.7A CN114320299B (en) | 2021-11-17 | 2021-11-17 | Method and device for reducing mixing rate of waste rock in mining of small river siderite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111364979.7A CN114320299B (en) | 2021-11-17 | 2021-11-17 | Method and device for reducing mixing rate of waste rock in mining of small river siderite |
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| CN114320299A CN114320299A (en) | 2022-04-12 |
| CN114320299B true CN114320299B (en) | 2024-04-09 |
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