CN1039602C - Method for wrapping booster charge and increasing explosive efficiency - Google Patents
Method for wrapping booster charge and increasing explosive efficiency Download PDFInfo
- Publication number
- CN1039602C CN1039602C CN91104541A CN91104541A CN1039602C CN 1039602 C CN1039602 C CN 1039602C CN 91104541 A CN91104541 A CN 91104541A CN 91104541 A CN91104541 A CN 91104541A CN 1039602 C CN1039602 C CN 1039602C
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- stemming
- coating
- blasting
- present
- efficiency
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to clad stemming for plugging blast holes in blasting projects and a method for improving blasting efficiency. In the present invention, a quick-setting and fast-hardening material is filled in a clad bag; a series of products are mechanically produced for blasting; the stemming strength is very high and can reach 80 to 200 kg/cm<2> in 4 to 10 minutes; the stemming has good compactness in plugging blast holes; the energy of powder can be made full use of; simultaneously, the combination with the blasting chart automatically compiled by an HXTBT-IBM program can cause the efficiency of the blast holes to reach 95 to 100%; if digging a 13-square-meter roadway is taken for example, compared with the prior art, each 10-thousand-meter roadway can save 500 to 600 thousand yuan of project cost; if the present invention is popularized throughout the country, economic effects are very high.
Description
The invention belongs to the blasting engineering field, be specially adapted to use in tunnel and the excavation.
Prior art in this technical field generally adopts yellow mud or water stemming material as the plugged perforation material.This material belongs to inert material, and its obstruction intensity is low or filling speed is slow, influences construction speed and efficient.In addition, the parameter that influences explosion is more, determine that for these years blasting parameter is mainly by experience, be some formula that calculate blasting parameter, but all more scattered complexity is difficult to promote the use of, the blast hole utilization factor of blasting engineering is generally all about 85% at present, thereby waste explosive and detonator have increased construction costs, can not realize building the mine with getting twice the result with half the effort.
The object of the invention is to improve the mud material and the structure of plugged perforation.
Technical scheme of the present invention is achieved like this: loose, have water-swellable material scleroma or rapid solidification and pack into and coat the coating stemming of making cylindrical or multi-edge column-shaped in the bag, it coats that material in stemming comprises that yellow mud, resin, cement, sand, gypsum, calcium oxide, three second ammoniums, cyanogen coagulate, aluminium powder, T31 coagulating agent or accelerator, when make coating stemming, available homogenous material is made or is mixed with two kinds of materials at least or material is compound more than three kinds makes; Its mud material by weight, filler is 20～50%, cementing material is 25～50%, additive is 25～30%; The clad material that is used for the mud material external packing is plastic products, polyvinyl alcohol paper, cotton fabric, a kind of sealing bag that all can be made in the chemical ﹠ blended fabric.
In the prior art, blast hole utilization factor is generally about 85%, explosive consumption is at 2.0～4.5 kilograms/cubic metre, and detonator consumption is at 5.0～7.3/cubic metre, and the main cause that causes explosive, detonator consumption to surpass national standard is that the of poor quality and explosion Graphic Design of the obstruction of borehole is not optimized.Show according to test, adopt coating stemming of the present invention, blast hole utilization factor all 95～100% or to 110% about, its explosive consumption reduces about 30%, and detonator consumption saves 10～15%, is example with regard to one 13 square meters of horizontal tunnel, 100 meters long tunnels of every driving, can many drilling depths 10～15 meters, save about 1 ton in explosive, more than 1400 in detonator.If deduction stemming cost, per 100 meters tunnel saving investments are more than 5000 yuan, as if a mineral bureau annual advance ten thousand metres tunnel, 50～600,000 yuan of year saving investments will be very considerable if popularize its economic benefit of use in an all-round way in national mining industry.
For realizing task of the present invention, existing the invention will be further described in conjunction with the embodiments:
Loose, have water-swellable material scleroma or rapid solidification and fully mix or pack into 10～45mm that polyvinyl alcohol paper or other clad materials make and the bag of long 100～1000mm of compound branch seals through mechanical agitation in proportion, during on-the-spot the use, to coat stemming and immerse in the clear water, fill in the borehole with wooden stick coating stemming again after waiting to coat stemming and being soaked into.Coat stemming through hydration reaction and setting expansion this moment, the stemming intensity that stemming and borehole wall form one generation 80～200 kg/cm blocks borehole, gases at high pressure behind the explosive charge are difficult for leaking from the heel of a shot, the explosive charge energy can be fully used, thereby has improved the utilization rate of borehole.According to task of the present invention, its specific embodiment is as follows:
Embodiment 1: formation hardness Protodyakonov coefficient f=5～10 (sandstone)
Special cement 80～90%
Sand 5～13%
Aluminium powder 5～7%
Embodiment 2: formation hardness Protodyakonov coefficient f=8～12 (calcareous sandstone and other hard rocks)
Resin 60～80%
T31 coagulating agent 20～40%
Embodiment 3: formation hardness Protodyakonov coefficient f=6～7 (limestone)
Cyanogen coagulates 65～80%
Three second ammoniums 20～35%
Embodiment 4: formation hardness Protodyakonov coefficient f=4～6 (argillaceous sandstones)
Ordinary cement 50～70%
Gypsum 20～35%
Calcium oxide 5～10%
Aluminium powder 1～2%
Accelerator 2～3%
Claims (3)
1. coating stemming that is used for plugged perforation, it is characterized in that loose, have water-swellable material scleroma or rapid solidification and pack into and coat in the bag, make the coating stemming of cylindrical or multi-edge column-shaped, it coats that material in stemming comprises that yellow mud, resin, cement, sand, gypsum, calcium oxide, three second ammoniums, cyanogen coagulate, aluminium powder, T31 coagulating agent or accelerator, by coating the mud material weight ratio, filler is 20～50%, cementing material is 25～50%, and additive is 25～30%.
2. coating stemming according to claim 1 is characterized in that it coats stemming is to be mixed by one or both materials to make or material is compound more than three kinds makes.
3. according to 1 or 2 described coating stemmings, it is characterized in that described coating bag crust is plastic products, any one is made in polyvinyl alcohol paper, bafta, the chemical ﹠ blended fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91104541A CN1039602C (en) | 1991-07-03 | 1991-07-03 | Method for wrapping booster charge and increasing explosive efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91104541A CN1039602C (en) | 1991-07-03 | 1991-07-03 | Method for wrapping booster charge and increasing explosive efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1068187A CN1068187A (en) | 1993-01-20 |
| CN1039602C true CN1039602C (en) | 1998-08-26 |
Family
ID=4906684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91104541A Expired - Fee Related CN1039602C (en) | 1991-07-03 | 1991-07-03 | Method for wrapping booster charge and increasing explosive efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039602C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786269A (en) * | 2012-08-24 | 2012-11-21 | 山东矿业管理技术服务集团有限公司 | Preparation method of sandy stemming |
| CN104692727B (en) * | 2015-02-13 | 2016-08-31 | 中国长江三峡集团公司 | A kind of blast hole blocking gelling material possessing the micro-swollen characteristic of quick setting early strength |
| CN106167370A (en) * | 2016-03-11 | 2016-11-30 | 任旭明 | A kind of colliery expands breakage-proof yellow mud stemming manufacture method |
| CN106478014A (en) * | 2016-09-28 | 2017-03-08 | 贵州大学 | Special stemming and preparation method are removed in a kind of structure demolition |
| CN107014264B (en) * | 2017-04-28 | 2018-05-29 | 东北大学 | It is a kind of for drilling tamponade device of drillhole blasting and preparation method thereof |
| CN107314724B (en) * | 2017-08-11 | 2018-11-23 | 中铁隧道集团有限公司 | It is a kind of for improving the loading method of periphery weak surrounding rock explosion stability |
| CN110260740A (en) * | 2019-06-12 | 2019-09-20 | 黑龙江科技大学 | A kind of mining borehole high-efficient homogeneous aggregate cladding sealing material |
| CN110926292B (en) * | 2019-12-16 | 2021-09-10 | 淮南矿业(集团)有限责任公司 | Water-leakage-proof sand hole sealing bag for coal mine blasting and using method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200084U (en) * | 1985-04-01 | 1985-11-10 | 李起山 | Water seal and water pressure water case for shot hole blasting |
-
1991
- 1991-07-03 CN CN91104541A patent/CN1039602C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200084U (en) * | 1985-04-01 | 1985-11-10 | 李起山 | Water seal and water pressure water case for shot hole blasting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1068187A (en) | 1993-01-20 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |