CN1035839C - Controlled blasting and quarrying method for facing stone - Google Patents
Controlled blasting and quarrying method for facing stone Download PDFInfo
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- CN1035839C CN1035839C CN92113193A CN92113193A CN1035839C CN 1035839 C CN1035839 C CN 1035839C CN 92113193 A CN92113193 A CN 92113193A CN 92113193 A CN92113193 A CN 92113193A CN 1035839 C CN1035839 C CN 1035839C
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- hole
- stone
- blasting
- big gun
- charge
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Abstract
The present invention provides a blasting control and exploiting method for facing stone, which is characterized in that the method adopts a special explosive which is mainly concentrated on the upper part of a blast hole and is detonated by a detonating cord, and the charging without coupling is implemented. The method can exploit coarse material with a large scale and has the advantages of regular coarse material, high recovery rate and low cost; furthermore, the economic benefit can be enhanced by 1.5 to 2 times.
Description
The present invention relates to a kind of blasting excavation method of stone material, specifically a kind of controlled blasting recovery method of ornamental stone.
The exploitation of ornamental stone, requirement forms a certain size regular hexahedron, and its volume more then economic worth is higher.But known ornamental stone blasting excavation method, as Chinese Shanxi spirit Qiu's granite mine and the used recovery method of Sichuan Xin Kang granite mine, all use the lower black blasting powder of force of explosion, and explosive mainly concentrates on bottom, big gun hole, and use fuse blasting, so exploitation gained material cruding fragmentation is little, of poor quality, the rate of recovery is low and amount of consumption of drugs is big, cost is high.
Task of the present invention is to provide a kind of ornamental stone blasting excavation method, and material cruding fragmentation that this method obtains is big, quality is good, the rate of recovery is high and amount of consumption of drugs is little, cost is low.
The present invention is achieved in that Drilling is arranged straight big gun hole on the material ore body of being quarried, device ornamental stone exploitation special dynamite in the big gun hole, this explosive main device is also used fuse arming test experiment initiation in the top in big gun hole, carries out decoupling charge, to being formed the cleavage and blast active force by the quarrying material.
Big gun hole arrangement requirement so that explosion forms a plane, reaches the whole purpose of waste gauge in line.
The force of explosion of special dynamite is moderate, both has been higher than traditional black blasting powder, is lower than common strip mining transformation explosive again, so that can exploit out ornamental stone larger volume, regular.This explosive is to use the mixture of common strip mining transformation with inorganic mineral (for example diatomite) powder one class of explosive adding 5% to 12%, evenly stir and form, its density is controlled at about 1 grams per cubic centimter, and moisture content should be greater than 0.5%, and force of explosion is 150 to 200 liters/kilogram.
The special dynamite main device is in top, big gun hole, and uses fuse arming test experiment initiation, to being formed the cleavage and blast active force by the quarrying material, to give full play to explosive strength and to guarantee the regularity of waste material.For realize decoupling charge be the powder stick diameter less than blasthole diameter, this explosive is loaded in the pencil of the system of giving, this tube outer surface is shaped on fin every one section, occupy center, big gun hole to guarantee pencil.
Detonate and use primacord, fast because of its explosion transmission speed, up to 7000 meter per seconds, can guarantee the comprehensive effect of explosion, i.e. swift and violent, the whole splitting of explosion.
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing 1 is the artificial splitting schematic diagram of the waste material of fritter, that is design schematic diagram of the present invention.Straight layout and Drilling tier hole 1 on the broken stone plane of need, pad can pass through gad 2 hammering splitting stone materials after expanding pad 3 in hole 1 again, so that obtain required regular stone material comparatively effortlessly.Special dynamite of the present invention mainly is loaded on top, big gun hole, implements decoupling charge and promptly comes from this design principle.
Accompanying drawing 2 is known ornamental stone blasting excavation charge constitution figure, has three kinds of structures, that is: explosive 4 is equipped with in bottom, a kind big gun hole, fills out on it with big gun mud 5, is the most common charge constitution; Swelling agent 6 is equipped with in bottom, b kind big gun hole, and a space is left in the centre, and the big gun orifice part is then filled out to stop up mud 7; C kind big gun is equipped with incendiary agent 9 at the bottom of the hole, and both ends of the surface are lined with bed course 8 up and down, top, big gun hole is then filled out with dry ground 11 for it.The common feature of three kinds of charge constitutions is powder charges at the bottom of the hole, and its blast action and cleavage mechanism of the present invention are obviously runed counter to.
Accompanying drawing 3 is charge constitution figure of the present invention, three joint blank pipes 13 are equipped with in bottom, big gun hole, and special dynamite pencil 12 mainly is loaded on top, big gun hole, and one to two joint blank pipe 13 is housed therebetween, it is cracked to reduce stone material by air cushion adopting decoupling charge, improves waste material quality.The big gun orifice part is then filled out as usual with the also available pencil 12 of charges 14 and is replaced, and draws primacord 15 and the annex blasting cap 16 and the segment blasting fuse 17 of the usefulness of detonating.
Accompanying drawing 4 is the charge constitution figure of the embodiment of the invention 1,3 meters of big gun hole depths, and the aperture is 32 millimeters, special dynamite pencil diameter is 17 millimeters, long 250 millimeters.This special dynamite evenly mixes with No. 2 opencast explosives to be made with 7% inorganic mineral powder, adorn 3 joints at the bottom of the big gun hole and adorn 1 joint pencil behind the blank pipes and refill two joint blank pipes, continue powder charge then, make the explosive main device in top, big gun hole, and use fuse arming test experiment initiation, with No. 8 blasting caps and train ignition.
In the another embodiment of the present invention, special dynamite evenly mixes with No. 3 opencast explosives to be made with 6% perlite powder, with No. 8 electric cap igniting, surplus with embodiment 1.
Use blasting excavation method exploitation ornamental stone of the present invention, can exploit the waste material of big specification, and waste gauge is whole, rate of recovery height, cost is low.Economic benefit can improve 1.5 to 2 times.
Claims (4)
1. controlled blasting and quarrying method for facing stone, be included in and holed on the quarrying material, blasting charge, detonate, it is characterized in that this method adopts the ornamental stone special dynamite, hole charge mainly concentrates on top, big gun hole, carry out decoupling charge and use fuse arming test experiment initiation, special dynamite evenly mixes with explosive with common strip mining transformation to be made with inorganic mineral powder one class mixture, the content of inorganic mineral is 5%-20%, broken straight layout and Drilling tier hole (1) on the stone plane, in hole (1), fill up again with expansion pad (3), by gad (2) hammering splitting stone material, 3 joint blank pipes (13) are equipped with in bottom, big gun hole, special dynamite pencil (12) mainly is loaded on top, big gun hole, one to two joint blank pipe (13) is housed therebetween, and it is cracked to reduce stone material by air cushion layer adopting decoupling charge, and gun muzzle portion fills out with charges (14), also available pencil (12) replaces, and draws primacord (15) and blasting cap (16) and segment blasting fuse (17).
2. according to the described recovery method of claim 1, it is characterized in that the special dynamite force of explosion is 150-200 litre/kilogram, density is 1 grams per cubic centimter, and institute's water content is not more than 0.5%.
3. according to the described recovery method of claim 2, its feature is that also the special dynamite of this method is to be loaded in the pencil of the system of giving, and this tube outer surface is shaped on fin every one section.
4. according to the described recovery method of claim 3, it is characterized in that special dynamite is to make with 6% perlite powder No. 3 even mixing of opencast explosives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92113193A CN1035839C (en) | 1992-11-23 | 1992-11-23 | Controlled blasting and quarrying method for facing stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92113193A CN1035839C (en) | 1992-11-23 | 1992-11-23 | Controlled blasting and quarrying method for facing stone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1076272A CN1076272A (en) | 1993-09-15 |
| CN1035839C true CN1035839C (en) | 1997-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92113193A Expired - Fee Related CN1035839C (en) | 1992-11-23 | 1992-11-23 | Controlled blasting and quarrying method for facing stone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035839C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643360B (en) * | 2016-12-05 | 2018-08-17 | 西南交通大学 | A kind of underground deep hole boulder explosion Uncoincided charge device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105789A (en) * | 1985-07-25 | 1987-03-25 | 淮南矿业学院 | New method for cutting marble and granite, and in-hole energy-gathering device and cutter application |
| CN1040074A (en) * | 1988-07-30 | 1990-02-28 | 斯科钦斯基矿业学院 | Utilize the method for blast crushing kinds of rock |
| CN1052186A (en) * | 1989-12-02 | 1991-06-12 | 冶金工业部马鞍山矿山研究院 | Directional cutting explosion technology |
-
1992
- 1992-11-23 CN CN92113193A patent/CN1035839C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105789A (en) * | 1985-07-25 | 1987-03-25 | 淮南矿业学院 | New method for cutting marble and granite, and in-hole energy-gathering device and cutter application |
| CN1040074A (en) * | 1988-07-30 | 1990-02-28 | 斯科钦斯基矿业学院 | Utilize the method for blast crushing kinds of rock |
| CN1052186A (en) * | 1989-12-02 | 1991-06-12 | 冶金工业部马鞍山矿山研究院 | Directional cutting explosion technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1076272A (en) | 1993-09-15 |
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