CN112815795A - Blasting method for end part extremely-thin ore body resources - Google Patents
Blasting method for end part extremely-thin ore body resources Download PDFInfo
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- CN112815795A CN112815795A CN202110116740.1A CN202110116740A CN112815795A CN 112815795 A CN112815795 A CN 112815795A CN 202110116740 A CN202110116740 A CN 202110116740A CN 112815795 A CN112815795 A CN 112815795A
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- explosive
- ore
- blasting
- end part
- threaded rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
Abstract
The invention discloses a blasting method of end part extremely thin ore body resources, and relates to the technical field of mining. The blasting method of the end part extremely thin ore body resource comprises the following operations: and S1, detecting the position of the ore vein through an ultrasonic detector, generating a three-dimensional model, and setting the connection part between the extremely thin ore at the end part and the main ore vein as a transition section. According to the blasting method of the end part ultrathin ore body resource, the use of the auxiliary mechanism is additionally arranged on the basis of the prior art, the stability between different parts of the end part ultrathin ore is reinforced, the acting force of the non-blasting part during blasting is further reduced, and the influence on the non-blasting part when the end part ultrathin ore is blasted by the blasting part is greatly reduced, so that the possibility of displacement of the end part ultrathin ore is reduced, a three-dimensional modeling technology is applied, the extremely low cost is used, and the production safety is guaranteed.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a blasting method for end part extremely thin ore body resources.
Background
In the process of ore mining, blasting operation is sometimes needed to be carried out on ore veins, and blasting is a technology which utilizes the compression, loosening, destruction, throwing and killing effects generated by the explosion of explosives in air, water, earth and stone media or objects to achieve the expected purpose. When the explosive package or explosive charge explodes in earth and stone medium or structure, the earth and stone medium or structure generates the phenomena of compression, deformation, damage, loosening and throwing, and the explosive package or explosive charge is mainly used for earth and stone engineering, the demolition of metal buildings and structures and the like. The range of the study included: the properties and the using method of the explosive and the fireset, the explosive action of the charging (explosive package) in various media, the contact blasting and the non-contact blasting of the charging on the target, and the organization and the implementation of various blasting operations.
In the prior art, the end part extremely thin ore body has cohesiveness, wet expansion disintegration and extremely unstable, and if the blasting treatment is improper, the whole ore body can be separated from the original position, so that a series of safety accidents are easily caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a blasting method of end part ultrathin ore body resources, and solves the problems that in the prior art, the end part ultrathin ore body has cohesiveness, wet expansion disintegration and extremely unstable, and if the blasting treatment is improper, the whole ore body is separated from the original position, so that a series of safety accidents are easily caused.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method of blasting an end-ultrathin ore body resource, comprising the operations of:
s1, detecting the position of the ore vein through an ultrasonic detector, generating a three-dimensional model, and setting the connection part between the end part ultra-thin ore and the main ore vein as a transition section;
s2, calculating the size of explosive holes and explosive components according to the soil texture and the vein condition;
s3, preparing an auxiliary mechanism according to the size of the explosive hole, wherein the auxiliary mechanism consists of a threaded rod, two end discs and a rubber sleeve, the end discs are arranged at the two ends of the threaded rod in a threaded manner, the rubber sleeve is movably sleeved on the surface of the threaded rod, the size of the explosive hole needs to be larger than that of the rubber sleeve, and the radius difference between the explosive hole and the rubber sleeve is 1-3 cm;
s4, selecting an inner operating well on the three-dimensional model, wherein the inner operating well can be bent when selected, and the distance between the inner wall of the inner operating well and the transition section is required to be ensured to be more than 2m all the time;
s5, selecting the positions of explosive holes on the three-dimensional model according to the soil texture and the vein condition, and ensuring that the explosion ranges are not overlapped when the positions of the explosive holes are selected, and the transition section is not included in the explosion ranges;
s6, gradually excavating the inner operating well from top to bottom according to the three-dimensional model, and when the horizontal height of the inner operating well is the same as the horizontal height of the explosive hole, taking the current horizontal height as a horizontal line, carrying out horizontal excavation along the plane of the end extremely thin mine, drilling explosive holes on the end extremely thin mine while carrying out horizontal excavation, after the explosive holes are drilled each time, a limit groove matched with the end disc is arranged on the extremely thin ore at the end part and below the explosive hole, so that the inner cavity of the limit groove is possibly smaller, the end disc can be ensured to be placed in the limit groove, the end disc at the bottom end of the auxiliary mechanism is taken down, and a rubber sleeve is inserted into the explosive hole outside the inner operation well, then the end disc at the bottom end is mounted and arranged in the limit groove, filling concrete in the limiting groove to fix the end disc relative to the limiting groove, and operating until all excavation work of the inner operating well is finished;
s7, evacuating excavating personnel of the inner operating well, and refilling the waste materials obtained by excavating into the inner operating well;
s8, explosive holes are selected, the end disc at the top end of the auxiliary mechanism in the selected explosive holes is taken down, the threaded rod is rotated to enable the threaded rod to be separated from the end disc at the bottom end, then the rubber sleeve and the threaded rod are taken down, explosives are added into the explosive holes to perform blasting operation, and all the explosive holes are blasted sequentially from top to bottom from two sides to the middle.
Preferably, one end of the explosive hole, which is far away from the main vein, faces upwards, and an included angle of 40-50 degrees is formed between the straight line of the explosive hole body and the horizontal plane.
(III) advantageous effects
The invention provides a blasting method of end part extremely thin ore body resources. The method has the following beneficial effects: according to the blasting method of the end part ultrathin ore body resource, the use of the auxiliary mechanism is additionally arranged on the basis of the prior art, the stability between different parts of the end part ultrathin ore is reinforced, the acting force of the non-blasting part during blasting is further reduced, and the influence on the non-blasting part when the end part ultrathin ore is blasted by the blasting part is greatly reduced, so that the possibility of displacement of the end part ultrathin ore is reduced, a three-dimensional modeling technology is applied, the extremely low cost is used, and the production safety is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention at A-A without the auxiliary mechanism;
FIG. 3 is an enlarged view of a portion of the present invention after the auxiliary mechanism is placed at A-A;
fig. 4 is a schematic structural diagram of the auxiliary mechanism of the present invention.
In the figure: 1. extremely thin ore at the end; 2. governing the veins; 3. a transition section; 4. an inner operating well; 5. an auxiliary mechanism; 51. a threaded rod; 52. an end plate; 53. a rubber sleeve; 6. a explosive hole; 7. a limiting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a method of blasting an end-ultrathin ore body resource, comprising the operations of:
s1, detecting the position of the ore vein by an ultrasonic detector, generating a three-dimensional model, and setting the connection part between the end part ultra-thin ore 1 and the main ore vein 2 as a transition section 3;
s2, calculating the size of explosive holes and explosive components according to the soil texture and the vein condition;
s3, preparing an auxiliary mechanism 5 according to the size of an explosive hole, wherein the auxiliary mechanism 5 consists of a threaded rod 51, two end discs 52 and a rubber sleeve 53, the end discs 52 are arranged at the two ends of the threaded rod 51 in a threaded manner, the rubber sleeve 53 is movably sleeved on the surface of the threaded rod 51, the size of the explosive hole needs to be larger than that of the rubber sleeve 53, and the radius difference between the explosive hole and the rubber sleeve 53 is 1-3 cm;
s4, selecting the inner operating well 4 on the three-dimensional model, wherein the inner operating well 4 can be bent when selected, and the distance of more than 2m is required to be ensured between the inner wall of the inner operating well 4 and the transition section 3;
s5, selecting the positions of the explosive holes 6 on the three-dimensional model according to the soil texture and the vein condition, and ensuring that the explosion ranges are not overlapped when the positions of the explosive holes 6 are selected, wherein the transition section 3 is not included in the explosion ranges;
s6, excavating the inner operating well 4 step by step from top to bottom according to the three-dimensional model, when the horizontal height of the inner operating well 4 is the same as the horizontal height of the explosive hole 6, excavating horizontally along the plane of the end part ultrathin mine 1 by taking the current horizontal height as a horizontal line, drilling the explosive hole 6 on the end part ultrathin mine 1 while excavating horizontally, wherein one end of the explosive hole 6 far away from the main ore vein 2 faces upwards, and an included angle of 40-50 degrees exists between the straight line of the explosive hole 6 and the horizontal plane, after the explosive hole 6 is drilled, a limiting groove 7 matched with the end disc 52 is arranged on the end part ultrathin mine 1 and below the explosive hole 6, if the inner cavity of the limiting groove 7 is small, the end disc 52 can be ensured to be placed in the limiting groove 7, taking down the end disc 52 at the bottom end of the auxiliary mechanism 5, and inserting the rubber sleeve 53 into the explosive hole 6 outside the inner operating well 4, then, the end disc 52 at the bottom end is installed, the end disc 52 at the bottom end is arranged in the limiting groove 7, concrete is filled in the limiting groove 7, the end disc 52 is fixed relative to the limiting groove 7, and the operation is carried out until all excavation work of the inner operation well 4 is completed;
s7, evacuating excavating personnel of the inner operating well 4, and refilling the waste materials obtained by excavating into the inner operating well 4;
and S8, selecting the explosive holes 6, taking down the end disc 52 at the top end of the auxiliary mechanism 5 in the selected explosive holes 6, rotating the threaded rod 51 to separate the threaded rod 51 from the end disc 52 at the bottom end, then taking down the rubber sleeve 53 and the threaded rod 51, adding explosives into the explosive holes 6, and carrying out blasting operation, wherein blasting operation is carried out on all the explosive holes 6 sequentially from the top to the bottom and from two sides to the middle.
In summary, according to the blasting method for the end ultrathin ore body resource, the auxiliary mechanism is additionally arranged on the basis of the prior art, so that the stability between different parts of the end ultrathin ore is enhanced, the acting force of the non-blasting part during blasting is further reduced, and the influence on the non-blasting part during blasting of the blasted part of the end ultrathin ore is greatly reduced, so that the possibility of displacement of the end ultrathin ore is reduced, and the three-dimensional modeling technology is applied, so that the extremely low cost is used, and the production safety is guaranteed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A method for blasting end part extremely thin ore body resources is characterized in that: the method comprises the following operations:
s1, detecting the position of the ore vein through an ultrasonic detector, generating a three-dimensional model, and setting the connection part between the end extremely thin ore (1) and the main ore vein (2) as a transition section (3);
s2, calculating the size of explosive holes and explosive components according to the soil texture and the vein condition;
s3, preparing an auxiliary mechanism (5) according to the size of an explosive hole, wherein the auxiliary mechanism (5) consists of a threaded rod (51), two end discs (52) and a rubber sleeve (53), the end discs (52) are arranged at the threads of the two ends of the threaded rod (51), the rubber sleeve (53) is movably sleeved on the surface of the threaded rod (51), the size of the explosive hole needs to be larger than that of the rubber sleeve (53), and the radius difference between the explosive hole and the rubber sleeve is 1-3 cm;
s4, selecting an inner operating well (4) on the three-dimensional model, wherein the inner operating well (4) can be bent when being selected, and the distance of more than 2m is required to be ensured between the inner wall of the inner operating well (4) and the transition section (3);
s5, selecting the positions of the explosive holes (6) on the three-dimensional model according to the soil texture and the vein condition, and ensuring that the explosion ranges are not overlapped when the positions of the explosive holes (6) are selected, and the transition section (3) is not included in the explosion ranges;
s6, excavating the inner operating well (4) step by step from top to bottom according to the three-dimensional model, excavating horizontally along the plane of the end extremely thin mine (1) by taking the current horizontal height as a horizontal line when the horizontal height of the inner operating well (4) is the same as the horizontal height of the explosive hole (6), drilling the explosive hole (6) on the end extremely thin mine (1) while excavating horizontally, after drilling the explosive hole (6) each time, arranging a limiting groove (7) matched with the end disc (52) on the end extremely thin mine (1) and below the explosive hole (6), ensuring that the end disc (52) can be placed in the limiting groove (7) when the inner cavity of the limiting groove (7) is small, taking down the end disc (52) at the bottom end of the auxiliary mechanism (5), and inserting the rubber sleeve (53) into the explosive hole (6) outside the inner operating well (4), then, mounting the end disc (52) at the bottom end, enabling the end disc (52) at the bottom end to be arranged in the limiting groove (7), filling concrete in the limiting groove (7), and enabling the end disc (52) to be fixed relative to the limiting groove (7) so as to operate until the whole excavation work of the inner operation well (4) is completed;
s7, evacuating excavating personnel of the inner operating well (4), and refilling the waste materials obtained by excavating into the inner operating well (4);
s8, selecting the explosive holes (6), taking down the end disc (52) at the top end of the auxiliary mechanism (5) in the selected explosive hole (6), rotating the threaded rod (51) to separate the threaded rod (51) from the end disc (52) at the bottom end, then taking down the rubber sleeve (53) and the threaded rod (51), adding explosives into the explosive holes (6) for blasting operation, and blasting all the explosive holes (6) from top to bottom in sequence from two sides to the middle.
2. A method of blasting an end ultra-thin ore body resource according to claim 1, wherein: one end of the explosive hole (6) far away from the main vein (2) faces upwards, and an included angle of 40-50 degrees is formed between the straight line where the explosive hole (6) is located and the horizontal plane.
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|---|---|---|---|
| CN202110116740.1A CN112815795B (en) | 2021-01-28 | 2021-01-28 | Blasting method for end part extremely-thin ore body resources |
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| CN202110116740.1A CN112815795B (en) | 2021-01-28 | 2021-01-28 | Blasting method for end part extremely-thin ore body resources |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1839209C (en) * | 1989-04-11 | 1993-12-30 | Горный Институт Кольского Филиала Им.С.М.Кирова Ан Ссср | Method of mining thin gently sloping and sloping ore deposits |
| CN105221129A (en) * | 2015-11-13 | 2016-01-06 | 重庆大学 | A kind of hydraulic pressure demolition opens and splits-CO 2take the reservoir anti-reflection method of proppant pressure break |
| CN205426002U (en) * | 2016-03-07 | 2016-08-03 | 慈溪宝诚知识产权服务有限公司 | Explosive blasting protector |
| CN108361041A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of inclination upraise construction technology |
| CN108361032A (en) * | 2018-03-27 | 2018-08-03 | 西安建筑科技大学 | It is horizontal to tilting route slotting formula mining codes of the very thin arteries and veins to thin lode body |
| CN108362181A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of driving recovery method of extra narrow vein ore body |
| CN209639625U (en) * | 2019-02-12 | 2019-11-15 | 福建省新华都工程有限责任公司 | One kind being used for the oblique blast hole projectile filling positioning device of presplitting |
| CN110566206A (en) * | 2019-10-14 | 2019-12-13 | 中钢集团马鞍山矿山研究院有限公司 | Separate mining and filling mining method for upper and lower cut walls of rock ores with steeply inclined extremely thin veins |
| CN110617065A (en) * | 2019-10-14 | 2019-12-27 | 中钢集团马鞍山矿山研究院有限公司 | Stope structure arrangement mode of steep-dip extremely-thin ore vein cut-wall filling mining method |
-
2021
- 2021-01-28 CN CN202110116740.1A patent/CN112815795B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1839209C (en) * | 1989-04-11 | 1993-12-30 | Горный Институт Кольского Филиала Им.С.М.Кирова Ан Ссср | Method of mining thin gently sloping and sloping ore deposits |
| CN105221129A (en) * | 2015-11-13 | 2016-01-06 | 重庆大学 | A kind of hydraulic pressure demolition opens and splits-CO 2take the reservoir anti-reflection method of proppant pressure break |
| CN205426002U (en) * | 2016-03-07 | 2016-08-03 | 慈溪宝诚知识产权服务有限公司 | Explosive blasting protector |
| CN108361041A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of inclination upraise construction technology |
| CN108362181A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of driving recovery method of extra narrow vein ore body |
| CN108361032A (en) * | 2018-03-27 | 2018-08-03 | 西安建筑科技大学 | It is horizontal to tilting route slotting formula mining codes of the very thin arteries and veins to thin lode body |
| CN209639625U (en) * | 2019-02-12 | 2019-11-15 | 福建省新华都工程有限责任公司 | One kind being used for the oblique blast hole projectile filling positioning device of presplitting |
| CN110566206A (en) * | 2019-10-14 | 2019-12-13 | 中钢集团马鞍山矿山研究院有限公司 | Separate mining and filling mining method for upper and lower cut walls of rock ores with steeply inclined extremely thin veins |
| CN110617065A (en) * | 2019-10-14 | 2019-12-27 | 中钢集团马鞍山矿山研究院有限公司 | Stope structure arrangement mode of steep-dip extremely-thin ore vein cut-wall filling mining method |
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