CN103360190B - A kind of outdoor metal mine explosion prepackage explosive formulation and manufacture craft - Google Patents
A kind of outdoor metal mine explosion prepackage explosive formulation and manufacture craft Download PDFInfo
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- CN103360190B CN103360190B CN201310313769.4A CN201310313769A CN103360190B CN 103360190 B CN103360190 B CN 103360190B CN 201310313769 A CN201310313769 A CN 201310313769A CN 103360190 B CN103360190 B CN 103360190B
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Abstract
The invention provides a kind of outdoor metal mine explosion prepackage explosive formulation and manufacture craft, the mass percentage content of wherein said formula is: diesel oil 3.0-5.0%, Sodium Nitrite 0.025-0.05%, phosphinylidyne 0.05-0.075%, ammonium nitrate 73-79%, water 14-19%, anhydrous sorbitol list olein and/or polyisobutene succinimide content are 1.0-2.0%, nitric acid or acetic acid are 0.2%.The emulsion explosive of this invention is pre-installed 10 days in the inner acidic water surrounding of big gun hole, and quality of explosive is stablized, and guarantees emulsion explosive steady detonation.Solve metallic ore mountain gun hole inner acidic water to emulsion explosive demulsification, and the problem of the existing quick-fried operation of the even existing dress of explosive blasting can not be pre-installed.
Description
Technical field
The invention belongs to mining technical field, be specifically related to a kind of outdoor metal mine explosion prepackage explosive formulation and manufacture craft.
Background technology
Existing metal mine use on-site mixed explosive completes and carries out explosion, make use of the feature of the good water resisting property of wherein emulsion explosive, but all contain sour water in metallic ore, make emulsion explosive water repelling property be deteriorated, quality of explosive is unstable, emulsion explosive loads in big gun hole, store row explosion again after 3-5 days, there is blasting quality difference, the problem of even miss-firing, can not after pre-powder charge and pre-powder charge blasting quality poor, can not meet the needs of the outdoor Large-scale blasting of metal sulfide.
Summary of the invention
For solve emulsion explosive can not pre-install with pre-powder charge after the problem of blasting quality difference, invented a kind of outdoor metal sulfide mountain explosion prepackage explosive formulation and manufacture craft.
The technical scheme of a kind of outdoor metal mine explosion prepackage explosive formulation and manufacture craft is: the mass percentage content of described formula is: diesel oil 3.0-5.0%, Sodium Nitrite 0.025-0.05%, carboxamide 0.05-0.075%, ammonium nitrate 73-79%, water 14-19%, single olein and/or polyisobutene succinimide content are 1.0-2.0%, nitric acid or acetic acid are 0.2%.This explosive, can seriation from having cap-sensitivity to without cap-sensitivity (namely having 1 kilogram of black terraced priming bomb Sensitivity to Primary Explosion).B: manufacturing process steps of the present invention is: its manufacture craft comprises preparation station, ground and on-the-spot mixed system two processes of demolition site explosive truck, and preparation station, ground is prepared by aqueous phase and oil phase preparation forms.Ammonium nitrate makes aqueous phase solution by fragmentation by helical feed to melting tank, oil phase makes oil-phase solution by proportioning, after qualified after testing by pump delivery to field mixed loading truck.
The invention has the beneficial effects as follows: this emulsion explosive is pre-installed 10 days in the inner acidic water surrounding of big gun hole, and explosion properties is stablized, solve the problem of metallic ore outdoor big gun hole inner acidic water to emulsion explosive storage quality, guarantee emulsion explosive steady detonation.
Accompanying drawing illustrates:
Fig. 1 is present invention process schema.
Embodiment:
Emulsifying manner: ground system breast and scene car system breast mixed processed two kinds of modes.5 formulas are divided into, the different maturity periods of realizing the different sensitivity of explosive and storage according to formula for raw stock difference.
5 formula identical points: diesel oil 3.0-5.0%, Sodium Nitrite 0.025-0.05%, ammonium nitrate 73-75% and water 16-19% or ammonium nitrate 75-79% and water 14-16%.During ammonium nitrate 73-75% and water 16-19%, this explosive is without cap-sensitivity; During ammonium nitrate 75-79% and water 14-16%, this explosive has cap-sensitivity.
Formula one: except above-mentioned raw materials and content, also comprise anhydrous sorbitol list olein content 1.0-2.0%, nitric acid 0.02%, carboxamide 0.05-0.075%.This explosive is more than 1 day shelf lives in sour water, is suitable for all metal mines, and charge explosion feature is that existing dress is existing quick-fried.
Formula two: except above-mentioned raw materials and content, also comprise polyisobutene succinimide content 1.0-2.0%, acetic acid 0.02%, carboxamide 0.05-0.075%.This explosive shelf lives in sour water can reach more than 10 days, is suitable for all metal mines, and charge explosion feature is existing dress now quick-fried and preload blasting.
Formula three: except above-mentioned raw materials and content, also comprising anhydrous sorbitol list olein content is 0.5-1.0%, and polyisobutene succinimide content is 0.5-1.0%, nitric acid 0.02%, carboxamide 0.05-0.075%.This explosive shelf lives in sour water can reach more than 7 days, is suitable for all metal mines, and charge explosion feature is existing dress now quick-fried and preload blasting.
Formula four: except above-mentioned raw materials and content, also comprising anhydrous sorbitol list olein content is 0.5-1.0%, and polyisobutene succinimide content is 0.5-1.0%, acetic acid 0.02%, carboxamide 0.05-0.075%.This explosive shelf lives in sour water can reach more than 7 days, and be suitable for all metal mines, charge explosion feature is preload blasting.
Formula five: except above-mentioned raw materials and content, also comprising anhydrous sorbitol list olein content is 0.5-1.0%, and polyisobutene succinimide content is 0.5-1.0%, acetic acid 0.02%.This explosive is more than 1 day shelf lives in sour water, is suitable for other metal mine except metal sulfide, and charge explosion feature is that existing dress is existing quick-fried.
See Fig. 1, manufacturing process steps of the present invention is: its manufacture craft comprises preparation station, ground and on-the-spot mixed system two processes of demolition site explosive truck, and preparation station, ground is prepared by aqueous phase and oil phase preparation forms.Ammonium nitrate makes aqueous phase solution by fragmentation by helical feed to melting tank, oil phase makes oil-phase solution by proportioning, after qualified after testing by pump delivery to field mixed loading truck.
1, aqueous phase configuration prepares: by computer control, automatically open and add water solenoid valve, adds in aqueous phase preparing tank by temperature higher than the water of 80 DEG C, starts stirrer, opens steam valve and passes into steam and heat.When Heating temperature reaches 90 DEG C, start the crusher of broken caking ammonium nitrate raw material, the worm conveyor of broken rear ammonium nitrate raw material, the fly-ash separator of suction ammonium nitrate dust.The process that ammonium nitrate dissolves, needs continuous heating, after terminating by first stopping crusher, stop worm conveyor again, finally stop the order of fly-ash separator and stop successively producing.After temperature, crystallization point reach the processing requirement of aqueous phase solution, steam off valve, stops stirring, and the aqueous phase solution preparation the first step completes.The technic index of the first step aqueous phase solution preparation is: temperature 70-90 DEG C, crystallization point 55-75 DEG C.
2, aqueous phase configuration: changed by transfer line, is started aqueous phase pump, and is pumped in hold tank by aqueous phase solution, and control aqueous phase solution temperature 75-90 DEG C in hold tank.On bulk mixing truck during emulsification, every 10 tons of aqueous phase solutions add 5000 milliliters, 55% nitric acid; During the emulsification of preparation station, ground, every 10 tons of aqueous phase solutions add 90% acetic acid 3000 milliliters.Aqueous phase solution preparation second step completes.The technic index of second step aqueous phase solution preparation is: crystallization point 55-75 DEG C, pH value 3.0-6.0.
3, oil phase preparation: by computer control, automatically start diesel oil pump, added by diesel oil in oil phase tank, polyisobutene succinimide and anhydrous sorbitol list olein add in the ratio of formula one, two, three, four, five defined and mix subsequently.Open steam valve, start stirrer.
After temperature reaches certain value, steam off valve, stops stirrer, and oil phase preparation is complete.The temperature 10-50 DEG C of oil phase preparation.
4, whipping agent preparation: Sodium Nitrite and carboxamide are added whipping agent tank, starts stirrer, stops after stirring, and whipping agent preparation is complete.The technic index of whipping agent preparation is: Sodium Nitrite and carboxamide ratio 1:4-1:2, temperature 10-35 DEG C.
5, the mixed system of explosive: according to blasting operation task needs, determine the demand of newborn explosive, calculate aqueous phase, oil phase, whipping agent intended use, aqueous phase, oil phase, whipping agent work in-process are pumped into explosive truck, transports to blasting operation scene and carries out the mixed system of explosive.
6, powder charge and big gun hole are filled: aqueous phase, oil phase are respectively under the effect of explosive truck aqueous phase pump and oil phase pump, to converge at Y-junction place through magnetic valve, under meter and enter emulsor, emulsion matrix and whipping agent enter mixing tank simultaneously, mixed medicine slurry falls in spiral pump funnel by deadweight, and medicine slurry press-in hose reel, medicine-feeding rubber pipe are sent into big gun hole by the pressure by spiral pump.Namely become explosive through sensitization in 5-10 minutes again, moving vehicle fills next big gun hole more successively, until powder charge terminates.
Its schedule of operation is: I) medicine-feeding rubber pipe mating holes position; II) pilot engine, make air pressure get to 0.7Mpa; III) start power-taking device, open reel reversing valve, first have a fling at explosive on ground, measure explosive density, and estimate explosive form, can lower opening after qualified.IV) medicine-feeding rubber pipe is slowly sent at the bottom of hole.Medicine-feeding rubber pipe can be inserted aperture if anhydrous in hole.V) according to the requirement of blasting works teacher by initiating equipment load hole.VI) explosive load in big gun hole is set on control device.VII) operate run switch, pharmacy starts.Medicine slurry is sent at the bottom of hole, simultaneously slowly on carry medicine-feeding rubber pipe.On the speed that rises of the speed carried and powder column suitable.When counting down as " 0 ", pharmacy terminates.VIII) move position, hole, close power-taking device, to subsequent work point, repeat above-mentioned steps.Ⅸ), during last hole powder charge of per car, control device is put number and put 100Kg less, when counting down to " 0 ", open air purge air valve, the surplus medicine in medicine-feeding rubber pipe is blown into big gun hole.Pack up sebific duct, after cleaning associated pipe, close power-taking device, work complete.Ⅹ) as found operation irregularity, close emergent stopping electricity and turn round, pharmacy stops.
The technic index of on-the-spot mixed system is: emulsor minimum speed 1000 revs/min, explosive density 1.05-1.30 kilogram/liter, explosion velocity 3500-6000 meter per second (powder stick diameter is 100 millimeters of PP plastics tubings is constraint condition).
This emulsion explosive explosion properties is stablized, and solves the problem of metallic ore outdoor big gun hole inner acidic water to emulsion explosive storage quality, guarantees emulsion explosive steady detonation.
Be described with reference to the exemplary embodiment of accompanying drawing to the application above.Those skilled in the art should understand that; above-mentioned embodiment is only used to the object that illustrates and the example of lifting; instead of be used for limiting; the any amendment done under all instructions in the application and claims, equivalently to replace, all should be included in and this application claims in the scope of protection.
Claims (4)
1. an outdoor metal mine explosion prepackage explosive formulation, it is characterized in that, the mass percentage content of described formula is: diesel oil 3.0-5.0%, Sodium Nitrite 0.025-0.05%, carboxamide 0.05-0.075%, ammonium nitrate 73-79%, water 14-19%, anhydrous sorbitol list olein and/or polyisobutene succinimide content are 1.0-2.0%, nitric acid or acetic acid are 0.2%;
The step of the manufacture craft that described explosive adopts is specifically:
1) aqueous phase configuration prepares: by computer control, automatically open and add water solenoid valve, adds in aqueous phase preparing tank by temperature higher than the water of 80 DEG C, starts stirrer, opens steam valve and passes into steam and heat; When Heating temperature reaches 90 DEG C, start crusher, worm conveyor, fly-ash separator, in the process that ammonium nitrate dissolves, need continuous heating, after temperature, crystallization point reach the processing requirement of aqueous phase solution, steam off valve, stops stirring;
2) aqueous phase configuration: changed by transfer line, start aqueous phase pump, and by step 1) aqueous phase solution pump in hold tank, and control aqueous phase solution temperature 75-90 DEG C in hold tank, every 10 tons of aqueous phase solutions add 5000 milliliters, 55% nitric acid or 90% acetic acid 3000 milliliters;
3) oil phase preparation: start diesel oil pump by computer control, added by diesel oil in oil phase tank, polyisobutene succinimide and/or anhydrous sorbitol list olein add and mix;
4) whipping agent preparation: Sodium Nitrite and carboxamide are added whipping agent tank, starts stirrer, stops after stirring;
5) the mixed system of explosive: aqueous phase, oil phase, whipping agent work in-process are pumped into explosive truck, transports to blasting operation scene and carries out the mixed system of explosive;
6) powder charge and big gun hole are filled: aqueous phase, oil phase are respectively under the effect of explosive truck aqueous phase pump and oil phase pump, to converge at Y-junction place through magnetic valve, under meter and enter emulsor, emulsion matrix and whipping agent enter mixing tank simultaneously, mixed medicine slurry falls in spiral pump funnel by deadweight, and medicine slurry press-in hose reel, medicine-feeding rubber pipe are sent into big gun hole by the pressure by spiral pump; Namely become explosive through sensitization in 5-10 minutes again, moving vehicle fills next big gun hole more successively, until powder charge terminates.
2. formula according to claim 1, is characterized in that, in described formula ammonium nitrate for when being more than or equal to 73% and being less than or equal to 75% and water for be more than or equal to 16% be less than or equal to 19% time, this explosive is without cap-sensitivity.
3. formula according to claim 1, is characterized in that, ammonium nitrate for be greater than 75% be less than or equal to 79% time and water for be more than or equal to 14% be less than 16% time, this explosive has cap-sensitivity.
4. formula according to claim 1, is characterized in that, the oxygen balance of this explosive is negative oxygen rate 2-6%.
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