CN1082526A - Mixed explosive with low explosion rate and method for making - Google Patents
Mixed explosive with low explosion rate and method for making Download PDFInfo
- Publication number
- CN1082526A CN1082526A CN 92105539 CN92105539A CN1082526A CN 1082526 A CN1082526 A CN 1082526A CN 92105539 CN92105539 CN 92105539 CN 92105539 A CN92105539 A CN 92105539A CN 1082526 A CN1082526 A CN 1082526A
- Authority
- CN
- China
- Prior art keywords
- explosive
- low
- making
- mixed
- annexation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
- C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
- C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/30—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with vegetable matter; with resin; with rubber
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Mixed explosive with low explosion rate provided by the invention and method for making belong to a kind of low explosive and the method for making in the industrial explosive field.Existing low explosive is to add the lightweight micro powder granule to make or mixed by rock dynamite and black powder in the typing high explosive.The present invention is mixed after granulation is made by a certain percentage by weak property explosive, additive and annexation.Be characterized in having low explosion velocity, low brisance, low density, and method for making is simple, with low cost, the suitable stone digging technical scale exploitation blasting explosive of doing.
Description
Mixed explosive with low explosion rate provided by the invention and method for making belong to a kind of mixed explosives with low detonation speed and the method for making in the industrial explosive field.
In the prior art, mixed explosives with low detonation speed is to add lightweight micro powder granule thinner in the typing high explosive, or the adding black explosive is mixed and made in rock dynamite.Before plant pyrotechnic composition, though have the low and detonation sensitivity advantages of higher of detonation pressure,, thereby be difficult to obtain the mixed uniform product of sieve because the proportion of lightweight micro mist and main body high explosive differs greatly; Though the pyrotechnic composition reasonable idea is planted in the back, processing is simple, and product is easy to the moisture absorption caking, and manufacturing cost is still higher; Simultaneously, though these two kinds of pyrotechnic composition are successfully used to explosive welding,, be difficult to satisfy the particular requirement of stone digging protective mining to explosive because of all containing the simple substance high explosive.
The objective of the invention is to overcome the shortcoming of prior art and mixed explosives with low detonation speed a kind of suitable stone digging industrial scale applications, that method for making is simple, with low cost is provided.
The material mine exploitation explosion belongs to the controlled blasting category.The exploitation explosion requires to treat that quick-fried rock mass is by predetermined surface of separation cracking, and sillar under quick-fried and virgin rock [mass itself is all excellent, even do not allow half residual on the cracking face garden big gun hole wall visible crack to occur, this has just proposed particular requirement to the performance of the used explosive of explosion.According to the controlled blasting principle, the pulverizing circle around the big gun hole is eliminated in the high-pressure shocking wave destruction that hole wall is produced when reducing the powder stick explosion, reduces hole wall blast crack, should adopt low explosion velocity, low brisance, low-density explosive.Experimental study shows, in certain density range, exists good linear relationship between the explosion velocity of explosive and the density, and explosion velocity reduces along with reducing of density, and adds the explosion velocity that suitable annexation also can reduce explosive in explosive; The explosion velocity of explosive is lower, and its power is just little, and is also just more little to the damage that stone material causes.The present invention is based on above-mentioned explosion principle and result of study, propose in weak property explosive, to add an amount of additive and inertia annexation, add tackiness agent after being mixed in proportion and make the blast explosive that a kind of suitable material mine exploitation is used through granulation.
Content of the present invention comprises mixed explosive with low explosion rate and method for making.The component concentration of mixed explosive with low explosion rate (weight %) is:
Weak property explosive 65.0-88.0
Additive 2.0-15.0
Inertia annexation 0.2-10.0
Tackiness agent 2.0-9.0
Weak property explosive of the present invention adopts the source abundant, and cheap ammonium nitrate is good with ammonium nitrate crystals.
Explosive property be adjusted and be changed to adding additive and inertia annexation can in weak property explosive, make it to be fit to the particular requirement of material mine exploitation explosion.
Additive can suit measures to local conditions to adopt coal dust, wood powder, lime powder etc.; Additive screening fineness is done through oven dry or stir-fry between the 0.5-2.5 millimeter, makes its water ratio be no more than 5%.
The inertia annexation adopts quartz sand, rock dust etc., and its size range is at 0.2-300 μ m, and its adding reduces the power (as brisance) of explosive with increase detonate energy and susceptibility.This react with not in blast process of inertia annexation.
For the resistance to water soak, the free-running property that improve explosive with reduce explosive density, add and bondingly sticking explosive is carried out granulation.Tackiness agent can be with rice a paste, batter, starch paste, dextrin etc., with starch paste for well.
Each feed composition according to its kind difference, mixes according to a certain percentage and makes mixed explosive with low explosion rate.Method for making to mixed explosive with low explosion rate of the present invention is described below.
1, with weak property explosive, additive, inertia annexation mix the formation explosive composition behind the weighing respectively;
2, paste adhesive is joined mix granulation and dry in the explosive composition thoroughly, become prill;
3, prill is packed into the outside be with in the yellow hard plastic tube of retaining ring, make the production tube shaped explosive charge.
The mixed explosive with low explosion rate that adopts said components content and method for making to make, its explosion velocity is the 1500-2500 meter per second, and brisance is the 4-10 millimeter, and density is 0.5-0.75/ centimetre
3
The present invention compared with prior art has following advantage:
1, do not contain the simple substance high explosive in the explosive of the present invention, the power of explosive and brisance are reduced, meet the particular requirement of material mine exploitation explosion explosive;
2, the made explosive of the present invention is a particulate state, and free-running property is good, is fit to mechanized charging; And be difficult for the moisture absorption, be convenient to store;
3, blasting explosives packing shell of the present invention is a plastic conduit, and pipe is outer to be with retaining ring, in the hole in powder charge easy to connect, not coupling deck charging fast reliably is convenient in the location, execute-in-place is easy;
4, explosive method for making of the present invention is simple, and raw material sources are abundant, and are cheap, the explosive low cost of manufacture.
Embodiment 1: ammonium nitrate, wood powder, rock dust are mixed by 85: 13: 2 proportionings, add 5% batter and mix granulation thoroughly, in the plastics tubing of packing into after drying.Explosive property is: explosion velocity 2010 meter per seconds, 5 millimeters of brisances, density 0.65 gram per centimeter
3
Embodiment 2: adopt ammonium nitrate, coal dust, quartz sand, mix by 87: 12: 1 proportionings, the starch paste of adding 7% is mixed granulation thoroughly, in the plastics tubing of packing into after drying.Explosive property is: explosion velocity 2250 meter per seconds, 6 millimeters of brisances, density 0.6 gram per centimeter
3
Than the explosive of making rock is carried out controlled blasting with above-mentioned set of dispense, its cloth hole parameter is: 0.3 meter of pitch-row, and 2 meters of hole depths adopt not coupling deck charging, and charge density is 120 gram/rice
2; After even rope detonated, rock was along big gun hole line direction cracking, and the cracking face is smooth, and no naked eyes visible crack on the residual hole wall has obtained the blasting effect of expecting.
Claims (5)
1, adding the tackiness agent granulation after mixed explosive with low explosion rate of the present invention and method for making are characterised in that and adopt ammonium nitrate, additive and inertia annexation to mix by a certain percentage makes;
2, by a certain percentage said according to claim 1, it is characterized in that: the component concentration of this explosive (weight %) is:
Ammonium nitrate 65.0-88.0
Additive 2.0-15.0
Inertia annexation 0.2-10.0
Tackiness agent 2.0-9.0
3, according to the said additive of claim 1, it is characterized in that adopting coal dust, wood powder, lime powder etc.;
4, according to the said inertia annexation of claim 1, it is characterized in that adopting quartz sand, rock dust etc.;
5,, it is characterized in that adopting rice paste, batter, starch paste, dextrin etc. according to the said tackiness agent of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105539 CN1082526A (en) | 1992-07-07 | 1992-07-07 | Mixed explosive with low explosion rate and method for making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105539 CN1082526A (en) | 1992-07-07 | 1992-07-07 | Mixed explosive with low explosion rate and method for making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1082526A true CN1082526A (en) | 1994-02-23 |
Family
ID=4941448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105539 Pending CN1082526A (en) | 1992-07-07 | 1992-07-07 | Mixed explosive with low explosion rate and method for making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082526A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976874A (en) * | 2012-11-05 | 2013-03-20 | 黄山三邦金属复合材料有限公司 | Diluent for explosive welding explosive, and explosive welding technology thereof |
| CN104557352A (en) * | 2015-01-05 | 2015-04-29 | 浏阳市诚发科技有限公司 | Sulfur-free environment-friendly gun propellant |
| WO2017162225A1 (en) * | 2016-03-22 | 2017-09-28 | K+S Aktiengesellschaft | Method for producing solid, granulated ammonium nitrile blasting agent |
-
1992
- 1992-07-07 CN CN 92105539 patent/CN1082526A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976874A (en) * | 2012-11-05 | 2013-03-20 | 黄山三邦金属复合材料有限公司 | Diluent for explosive welding explosive, and explosive welding technology thereof |
| CN104557352A (en) * | 2015-01-05 | 2015-04-29 | 浏阳市诚发科技有限公司 | Sulfur-free environment-friendly gun propellant |
| WO2017162225A1 (en) * | 2016-03-22 | 2017-09-28 | K+S Aktiengesellschaft | Method for producing solid, granulated ammonium nitrile blasting agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104045495B (en) | Granular ammonium nitrate-fuel oil mixture of a kind of viscosity and preparation method thereof | |
| CN102924195B (en) | Viscous porous granulated ammonium nitrate fuel oil explosive and preparation method thereof | |
| CN1884231A (en) | Water gel explosive with low detonation velocity for mining and method for producing same | |
| CN1067364C (en) | Beneficial use of energy-containing water | |
| CN114279286A (en) | Multistage filling blasting dust-settling method for open-air iron ore | |
| US4756779A (en) | Process for the production of particulate, water resistant explosives based on ammonium nitrate | |
| CN1082526A (en) | Mixed explosive with low explosion rate and method for making | |
| CN102584104A (en) | General blasting blockage stemming and preparation method thereof | |
| CN1031362A (en) | Granulated emulsion explosive for rocks | |
| CN103063093A (en) | Water stemming | |
| RU2308667C1 (en) | Explosive charge (modifications) | |
| CN101560130A (en) | Ammonia dynamite for explosive compound welding of titanium plate and steel plate | |
| US3377909A (en) | Explosive composition and method | |
| CN106946636A (en) | One kind emulsification ANFO explosives prill and its continuous production technology | |
| KR20030075643A (en) | Two-face simultaneous cut blasting using air decking | |
| CN108774097A (en) | A kind of high density moisture-proof ammonium nitrate-fuel oil mixture and preparation method thereof | |
| CN1066838A (en) | Flocculent non-sensitizing agent ammonium nitrate explosive and its manufacturing process | |
| CN1089080C (en) | Enhanced performance blasting agent | |
| CN101955402A (en) | Low-density powdery modified ammonium nitrate fuel oil explosive | |
| CN216815219U (en) | Blast hole filling structure and dust fall structure for multistage filling and blasting of open-air iron ore | |
| CN103242115A (en) | Water gel and ammonium nitrate fuel oil explosive and production method thereof | |
| US3061488A (en) | Explosive composition | |
| CN87104088A (en) | Dynamite ammonoperchlorate-D and focus hollow charge exploder | |
| CN116178090B (en) | Antifreeze agent for coal-based explosive, low-Wen Meiji-resistant explosive and preparation method of antifreeze agent | |
| CN85100393A (en) | non-TNT adhesive granular explosive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |