CN104048570A - Deep hole blasting filling method - Google Patents
Deep hole blasting filling method Download PDFInfo
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- CN104048570A CN104048570A CN201410281545.4A CN201410281545A CN104048570A CN 104048570 A CN104048570 A CN 104048570A CN 201410281545 A CN201410281545 A CN 201410281545A CN 104048570 A CN104048570 A CN 104048570A
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Abstract
The invention discloses a deep hole blasting filling method. The deep hole blasting filling method includes the steps that the bottom of a blast hole is filled and blocked with cement, and meanwhile the bottom resistance line is reserved; a pre-designed amount of first explosive is loaded to the bottom of the blast hole, and meanwhile a first double-detonator and detonating cord igniting explosive package and a first detonator are loaded into the blast hole along with the first explosive; the position on the top of the first explosive is filled with an appropriate amount of river sand; a pre-designed amount of second explosive is continuously loaded to the top of the river sand, and meanwhile a second double-detonator and detonating cord igniting explosive package and a second detonator are loaded into the blast hole along with the second explosive; after all the explosive is loaded into the blast hole, the top of the second explosive is filled with fine river sand, and then two water bags are hoisted into the blast hole and press on the top of the fine river sand. The deep hole blasting filling method solves the problems that according to an original filling scheme, the number of plug holes is large and a large amount of dust is generated.
Description
Technical field
The invention belongs to mining technical field, be specifically related to a kind of deep hole blasting filling method.
Background technology
The all mouthful of current annual mining amount of plumbous zinc ore is about 1,600,000 tons, and the rock yield that its medium-length hole blasting is born is about 45～500,000 tons, and explosion number of times is about 90 times every year.In the process of blast working, according to correlation theory, after powder charge completes, the filling such as use river sand can increase the time that detonation gas acts on the pressure on hole wall and extends pressure-acting, thereby has greatly improved spalling degree and the casting distance of rock.In the time adopting traditional river sand interval to clog, the percentage of plugged hole after every separate explosion is about 80% left and right, meanwhile, also can produce a large amount of dust in hole, has brought adverse effect to underground ventilating.Be 50 and calculate according to 1 year 90 separate explosion, each blast charging hole count, after annual explosion to be processed, plug-hole quantity is all in 3600 (inferior) left and right, being no matter to process the human and material resources of required cost or time etc. factor, is all a huge burden.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the invention provides a kind of simple in structure, easy to use, demolition effect is good, percentage of plugged hole is low deep hole blasting filling method.
In order to realize above-mentioned purpose of the present invention, a kind of deep hole blasting filling method of the present invention adopts following technological process to carry out:
1) cement plug is blocked to bottom, big gun hole, retained bottom burden simultaneously;
2) pack explosive one into big gun hole bottom by the dose of design in advance, the first double detonator is added to fuse arming test experiment initiation cartridge bag and the first detonator simultaneously and also pack in big gun hole with explosive one;
3) insert appropriate river sand on explosive one top;
4) continue to pack into the explosive two of pre-designed dose on the top of described river sand, the second double detonator is added to fuse arming test experiment initiation cartridge bag and the second detonator simultaneously and also pack in big gun hole with explosive two;
5) in big gun hole, pack into after all explosives, insert thin river sand on the top of explosive two, then two water bags are hung in big gun hole, be pressed in the top of described thin river sand.
Further, for the ease of ignition charge, described the first detonator adds fuse arming test experiment initiation cartridge bag from described the first double detonator and extends to outside, described big gun hole.Described the second detonator adds fuse arming test experiment initiation cartridge bag from described the second double detonator and extends to outside, described big gun hole.
Further, for river sand can be combined with water better, reduce the generation of dust, the particle diameter of river sand described in powder charge process is between 0.35～0.5mm.
Further, in order to reach due demolition effect, described water bag is the polyethylene plastic bag of filling the difficult worn-off of clear water, and its thickness is 0.06875mm.
Further, in order to ensure that water bag can arrive thin river sand top position smoothly, the diameter of described water bag is slightly less than the diameter in described big gun hole.
Further, in order to ensure demolition effect, the length of described water bag is about 130cm, fill water after its length be about 100cm; The width of described water bag is about 165mm, and it fills water bag diameter after water is 105mm, is slightly less than the diameter in described big gun hole.
Further, described bottom burden length is 0.8～1.3m.
Further, the packed height of described river sand be 1.2m, the packed height of the thin river sand of described water bag below is 1.5m.
Compared with prior art, the invention has the beneficial effects as follows: 1. easy to use, simple to operate, without extra equipment and operation, carry out without professional; 2. material source is simple, and the polybag that the present invention uses only there are certain requirements thickness, diameter, without the customization of carrying out especially, also can not have higher requirements to other operation parameter; 3. improve successful, use after a kind of deep hole blasting filling method of the present invention, the percentage of plugged hole that every separate explosion produces is reduced to 20% left and right, by being combined with stope watering and lowering dust and tunnel water injector, also can obtain significant dust-laying effect, reduce the Occupational Disease Hazards that dust pollution and mine down-hole operating personnel may occur; 4. economic benefit is obvious, has reduced the expense of plug-hole and the buying of river sand, transport and the screening expense processed; Meanwhile, by reducing the generation of dust, optimize the working environment of operation field, can reduce the ventilation cost in mine.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the blast hole stemming structural representation of a kind of deep hole blasting filling method of the present invention.
In figure: 1-river sand, 21-the first detonator, 22-the second detonator, 31-the first double detonator adds fuse arming test experiment initiation cartridge bag, and 32-the second double detonator adds fuse arming test experiment initiation cartridge bag, 4-cement plug, 51-explosive one, 52-explosive two, 6-water bag.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, it is the blast hole stemming structural representation of a kind of deep hole blasting filling method of the present invention.Wherein, L1, L2 are the height that river sand 1 is filled at correspondence position, L1=1.2m, L2=1.5 rice.L3 is bottom, big gun hole burden length, and L3 span is 0.8～1.3m.
A kind of deep hole blasting filling method of the present invention carries out according to following technological process:
1) cement plug 4 is blocked to bottom, big gun hole, retained bottom burden simultaneously, its length L 3 is 0.8～1.3m;
2) pack explosive 1 into big gun hole bottom by the dose of design in advance, the first double detonator is added to fuse arming test experiment initiation cartridge bag 31 and the first detonator 21 also packs in big gun hole with explosive 1 simultaneously; The quantity of explosive one can arrange according to the actual requirements, is generally the 2-3 bar blasting charge;
3) insert appropriate river sand 1 on explosive one 51 tops; The packed height L1 of this section of river sand is 1.2m;
4) continue to pack into the explosive 2 52 of pre-designed dose on the top of described river sand 1, the second double detonator is added to fuse arming test experiment initiation cartridge bag 32 and the second detonator 22 also packs in big gun hole with explosive 2 52 simultaneously; The quantity of explosive two can arrange according to the actual requirements, is generally the 2-3 bar blasting charge;
5) in big gun hole, pack into after all explosives, insert river sand 1 on the top of explosive 2 52, then two water bags 6 are hung in big gun hole, be pressed in the top of described river sand 1.The particle diameter of described river sand 1 is between 0.35～0.5mm; Described water bag is the polyethylene plastic bag of filling the difficult worn-off of clear water, and its thickness is 0.06875mm; The length of described water bag 6 is about 130cm, fill water after its length be about 100cm; The width of described water bag 6 is about 165mm, and it fills water bag diameter after water is 105mm, is slightly less than the diameter in described big gun hole.
Than prior art, the invention provides a kind of new blast hole stemming scheme, after powder charge completes, original " 2.5～3.0m fills out sand " become " 1.5m fills out sand+2 water bag ", both can ensure original filling effect, can make again water bag break and turn to fine water droplets in explosion moment, reduce the generation of dust, solved original filling scheme and brought the many problems with producing a large amount of dust of plug-hole quantity.
The present invention has the following advantages: 1. easy to use, simple to operate, without extra equipment and operation, carry out without professional; 2. material source is simple, and the polybag that the present invention uses only there are certain requirements thickness, diameter, without the customization of carrying out especially, also can not have higher requirements to other operation parameter; 3. improve successful, use after a kind of deep hole blasting filling method of the present invention, the percentage of plugged hole that every separate explosion produces is reduced to approximately 20% left and right, by being combined with stope watering and lowering dust and tunnel water injector, also can obtain significant dust-laying effect, reduce the Occupational Disease Hazards that dust pollution and mine down-hole operating personnel may occur; 4. economic benefit is obvious, has reduced the expense of plug-hole and the buying of river sand, transport and the screening expense processed; Meanwhile, by reducing the generation of dust, optimize the working environment of operation field, can reduce the ventilation cost in mine.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, do not depart from technical solution of the present invention content therefore every, any amendment, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a deep hole blasting filling method, is characterized in that carrying out according to following technological process:
1) cement plug is blocked to bottom, big gun hole, retained bottom burden simultaneously;
2) pack explosive one into big gun hole bottom by the dose of design in advance, the first double detonator is added to short primacord igniting primer and the first detonator simultaneously and also pack in big gun hole with explosive one;
3) insert appropriate river sand on explosive one top;
4) as design powder charge be two-layer or two-layer more than, repeating step 2) step 3) until powder charge complete;
5) in big gun hole, pack into after all explosives, insert thin river sand on the top of explosive, then two water bags are hung in big gun hole, be pressed in the top of described thin river sand.This filling method has replaced original part river sand filling with the water bag of filling water, can effectively reduce the dust producing after explosion, reduces dilution, the reduction mine production cost of sneaking into the river sand in ore and causing.
2. a kind of deep hole blasting filling method according to claim 1, is characterized in that: described the first detonator adds fuse arming test experiment initiation cartridge bag from described the first double detonator and extends to outside, described big gun hole.
3. a kind of deep hole blasting filling method according to claim 1, is characterized in that: described the second detonator adds fuse arming test experiment initiation cartridge bag from described the second double detonator and extends to outside, described big gun hole.
4. a kind of deep hole blasting filling method according to claim 1, is characterized in that: the particle diameter of river sand described in powder charge process is between 0.35～0.5mm.
5. a kind of deep hole blasting filling method according to claim 1, is characterized in that: described water bag is the polyethylene plastic bag of filling the difficult worn-off of clear water, and its thickness is at least 0.06875mm.
6. a kind of deep hole blasting filling method according to claim 1, is characterized in that: the width of described water bag is about 165mm, and it fills water bag diameter after water is 105mm, is slightly less than the diameter in described big gun hole.
7. a kind of deep hole blasting filling method according to claim 1, is characterized in that: the length of described water bag is about 130cm, fill water after its length be about 100cm.
8. a kind of deep hole blasting filling method according to claim 1, is characterized in that: described bottom burden length is 0.8～1.3m.
9. a kind of deep hole blasting filling method according to claim 1, is characterized in that: the packed height of described river sand for 1.2m, the packed height of the thin river sand of described water bag below is 1.5m.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964620A (en) * | 2015-05-27 | 2015-10-07 | 中钢集团马鞍山矿山研究院有限公司 | Blasting method capable of effectively reducing fume harm |
| CN105674819A (en) * | 2016-03-03 | 2016-06-15 | 秦健飞 | Aqueous medium energy transition blasting method and charging cavity |
| CN108692622A (en) * | 2018-03-28 | 2018-10-23 | 中交公局第三工程有限公司 | A kind of method of tunnel photoface exploision |
| CN109870084A (en) * | 2019-03-20 | 2019-06-11 | 中南大学 | A kind of VCR mining codes exempt from cleaning bottom of hole blast charging structure and its construction method |
| CN111207640A (en) * | 2020-03-30 | 2020-05-29 | 南阳市神威***工程有限公司 | Ultra-deep hole blasting method |
| CN112304179A (en) * | 2020-10-23 | 2021-02-02 | 本钢板材股份有限公司 | Radial uncoupled and axial spaced presplitting blasting method |
| CN113513954A (en) * | 2021-07-14 | 2021-10-19 | 中国华冶科工集团有限公司 | Boundary control blasting method for underground mine deep hole stope |
| CN114199090A (en) * | 2021-12-09 | 2022-03-18 | 安徽铜冠（庐江）矿业有限公司 | Deep hole groove-drawing top-breaking gangue return-free charging structure and operation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110207555B (en) * | 2019-07-09 | 2021-08-13 | 中交路桥建设有限公司 | Soft interlayer geological slope controlled blasting method |
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| CN101046366A (en) * | 2007-01-24 | 2007-10-03 | 荆山 | Water pressure burst hole and burst method with energy saving and environment friendship |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964620A (en) * | 2015-05-27 | 2015-10-07 | 中钢集团马鞍山矿山研究院有限公司 | Blasting method capable of effectively reducing fume harm |
| CN105674819A (en) * | 2016-03-03 | 2016-06-15 | 秦健飞 | Aqueous medium energy transition blasting method and charging cavity |
| CN105674819B (en) * | 2016-03-03 | 2017-10-10 | 秦健飞 | A kind of aqueous medium transducing blasting method and its powder charge chamber |
| CN108692622A (en) * | 2018-03-28 | 2018-10-23 | 中交公局第三工程有限公司 | A kind of method of tunnel photoface exploision |
| CN109870084A (en) * | 2019-03-20 | 2019-06-11 | 中南大学 | A kind of VCR mining codes exempt from cleaning bottom of hole blast charging structure and its construction method |
| CN109870084B (en) * | 2019-03-20 | 2020-05-08 | 中南大学 | VCR mining method hole-sweeping-free blasting charge structure and construction method thereof |
| CN111207640A (en) * | 2020-03-30 | 2020-05-29 | 南阳市神威***工程有限公司 | Ultra-deep hole blasting method |
| CN112304179A (en) * | 2020-10-23 | 2021-02-02 | 本钢板材股份有限公司 | Radial uncoupled and axial spaced presplitting blasting method |
| CN113513954A (en) * | 2021-07-14 | 2021-10-19 | 中国华冶科工集团有限公司 | Boundary control blasting method for underground mine deep hole stope |
| CN114199090A (en) * | 2021-12-09 | 2022-03-18 | 安徽铜冠（庐江）矿业有限公司 | Deep hole groove-drawing top-breaking gangue return-free charging structure and operation method thereof |
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| CN104048570B (en) | 2016-02-03 |
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