CN1359011A - High-resolution three-dimension three-component earthquake focus prospecting cannonball and making method thereof - Google Patents

High-resolution three-dimension three-component earthquake focus prospecting cannonball and making method thereof Download PDF

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Publication number
CN1359011A
CN1359011A CN 01124170 CN01124170A CN1359011A CN 1359011 A CN1359011 A CN 1359011A CN 01124170 CN01124170 CN 01124170 CN 01124170 A CN01124170 A CN 01124170A CN 1359011 A CN1359011 A CN 1359011A
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China
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ammonium nitrate
water
powder column
hypocentrum cartridge
polyfoam
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CN 01124170
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CN1166960C (en
Inventor
黄文尧
康大浩
吕淑然
赵瑞平
郭钟灿
郭子如
颜事龙
谢兴华
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Beijing Kelang Petroleum Technology Co.,Ltd.
Blasting Engineering and Equipment Research Institute Anhui University of Science & Technology
BGP Inc
Original Assignee
Institute Of Explosion Engineering And Materials Huainan Industrial Institute
KELANG PETROLEUM TECHNOLOGY Co Ltd BEIJING
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Priority to CNB011241705A priority Critical patent/CN1166960C/en
Publication of CN1359011A publication Critical patent/CN1359011A/en
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Publication of CN1166960C publication Critical patent/CN1166960C/en
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Abstract

The composition of seismic bomb with low detonation speed (D-1700-2600m/s) contains (wt%) emulsified paste body 46-55.5%, foamed plastic carrier 3.0-5.0% and activated water-resisting ammonium nitrate 40-50%. Said invention also discloses its production method and charging structure. Said method includes the following steps: firstly, preparing the above-mentioned three components, mixing foamed plastic carrier and activated water-resisting ammonium nitrate, then adding emulsified paste body, granulating, cooling and charging. The most upper end of seismic bomb is equipped with detonate-tube seat with inverted fork, and other charge column tubes are screw-connected between them. Its composition contains no toxic components of TNT, etc.

Description

High-resolution three-dimension three-component earthquake focus prospecting cannonball and method for making thereof
Technical field
The present invention relates to a kind of explosive and loaded constitution thereof, particularly a kind of oil, coalfield three-dimension three-component earthquake focus prospecting cannonball and method for making thereof of being used for.
Background technology
In the prior art, the conventional explosives focus has ammonium ladder type, oil-in-water type, tremelliform, expanded ammonium nitrate types etc. can be referring to China Patent No. 97107103.9, title: explosive-source explosive post and method for making thereof, its explosion velocity is greater than 3500m/s, in oil, coal seismic prospecting, be widely used in the longitudinal wave earthquake exploration, and many shear wave vibrator cars are adopted in the shear wave earthquake exploration at present, or adopt three artillery salvo wells, construction is complicated, cost is high.
Summary of the invention
For overcoming the difficult problem that existing hypocentrum cartridge can not be used for the many ripple explorations of high resolving power, the present invention is by making low explosive, and adopt limited cylindricality (straight line) length powder charge technology, and provide a kind of can being implemented in to excite longitudinal and transverse wave energy strong in the well, bandwidth, the signal to noise ratio (S/N ratio) height, the multi-wave seismic focus exploration bullet that surface wave interference is little also provides the manufacture method of this hypocentrum cartridge simultaneously.
The present invention adopts following technical proposals for this reason: a kind of high-resolution three-dimension three-component earthquake focus prospecting cannonball, the explosion velocity scope is 1700~2600m/s, it is characterized in that the explosive composition in this hypocentrum cartridge is by weight percentage: emulsification lotion 46~55.5, polyfoam carrier 3.0~5.0, the anti-water ammonium nitrate 40~50 of activation.
Weight percentage at above-mentioned each component, detailed again division then is the hypocentrum cartridge for explosion velocity scope 1700~2000m/s, the component of its explosive and content (quality %) are: activate anti-water ammonium nitrate 40~45, emulsification lotion 50~55.5, polyfoam carrier 4.5~5.0, charge diameter are φ 22~25mm; For the hypocentrum cartridge of explosion velocity scope 2000~2300m/s, the component of its explosive and content (quality %) are: activate anti-water ammonium nitrate 45~50, emulsification lotion 46~51, polyfoam carrier 3.5~4.0, charge diameter is φ 22~25mm; For the hypocentrum cartridge of explosion velocity scope 2300~2600m/s, the component of its explosive and content (quality %) are: activate anti-water ammonium nitrate 44.5~50, emulsification lotion 47~52, polyfoam carrier 3.0~3.5, charge diameter is φ 28~32mm.The component and the content (quality %) of the anti-water ammonium nitrate of activation are in the component of the hypocentrum cartridge of above-mentioned three kinds of explosion velocity scopes: ammonium nitrate 98.8~99.1, AN-TNT containing explosive anticaking agent 0.2~0.4, surfactivity water repellent agent 0.7~0.9; The component of emulsification lotion and content (quality %) are: ammonium nitrate 73.5~81.5, sodium nitrate 10~15, urea 1~3, water 5~7, compound oil phase material 1.5~2.5, compound emulsifying agent 1~2; Surfactivity water repellent agent component and content (quality %) are: pitch 42~48, complex wax 42~48, succimide 4~6, octadecane amine phosphate 4~6; Compound oil phase material component and content (quality %) are: complex wax 50~70, machine oil 30~50; Compound emulsifying agent component and content (quality %) are: succimide 50~55, anhydrous sorbitol list olein 45~50, polyfoam carrier are the polyfoam of lightweight, and density is 0.015~0.028g/cm 3
Among the present invention for the hypocentrum cartridge of different explosive except that on the component content of explosive, changing, the diameter of powder charge also has difference, wherein the polyfoam carrier plays a crucial role.
Hypocentrum cartridge of the present invention, the powder charge total length can reach 6~20m, be to compose in series by more piece powder column pipe, one end of each powder column pipe is with the external thread plug, and viscose glue sealing, the other end is with the internal thread plug, also seal with viscose glue, blasting charge in the pipe, the free end of the powder column pipe of head end is provided with the detonator seat in addition, and detonator seat sidewall is provided with down fork, and be provided with detonator line perforation, utilize set internal and external screw thread plug to connect successively between each powder column pipe and be fixed into the right cylinder shape, each powder column pipe is separate, the waterproof resistance to compression.
The hypocentrum cartridge method for making of above-mentioned three kinds of explosion velocity scopes is:
A. polyfoam is ground into irregular granularly, and 100% cross 8 mesh sieves;
B. with pitch, complex wax, succimide, octadecane amine phosphate consolute, 80~90 ℃ of temperature are made the surfactivity water repellent agent;
C. after pulverizing dry 8~12 minutes in the ammonium nitrate adding edge runner with coarse crushing, add the AN-TNT containing explosive anticaking agent and mixed 4~6 minutes, add the material that is obtained by step b again and rolled 10~15 minutes, temperature is 60~65 ℃;
D. ammonium nitrate, sodium nitrate, urea, water heating are dissolved, temperature is 105~115 ℃, forms water; And with compound oil phase material and composite emulsifying agent material heat fused, temperature is 80~95 ℃, forms oil phase; Water and oil phase are made the emulsification lotion through emulsification after 5~8 minutes, be cooled to 60~70 ℃;
E. will be added by the material that step a obtains in the kneader, turn on agitator adds the material that is obtained by step c slowly, mixes after 3~5 minutes, adds the material that is obtained by steps d again, mixes 6~8 minutes;
F. the material that step e is obtained is cooled to below 45 ℃, the powder column pipe of packing into, viscose glue sealing.
Ultimate principle of the present invention is: the anti-water ammonium nitrate of activation that utilizes membrane technology to make AN-TNT containing explosive anticaking agent and surfactivity water repellent agent disperse coating powdery ammonium nitrate to make is embedded on the irregular polyfoam carrier surface, outer emulsified lotion film coats, the final blasting explosive granules that has micropore that forms, the detonation sensitivity height can make the hypocentrum cartridge of different explosive according to explosive density and the powder charge of different-diameter PVC plastic tube.
The present invention has following characteristics:
1, selects lightweight foamed plastics for use, and pulverized 8 mesh sieves, the detonation sensitivity of explosive and the density and the explosion velocity of adjusting explosive are played a crucial role as carrier.
2, still there is not report about the preparation of the anti-water ammonium nitrate of activation is domestic, present domestic only the have preparation of anti-water ammonium nitrate, the preparation of expanded ammonium nitrate, among the present invention water repellent agent (pitch and paraffin) and surfactant (octadecane amine phosphate, succimide) are combined for the surface processing of ammonium nitrate do, thereby play the double effects of anti-water and activation, simultaneously, stop powdery ammonium nitrate to destroy emulsification lotion film, the bin stability of explosive is played an important role because of the moisture absorption.(this point outstanding contributions of the present invention just are because the less stable of former explosive).
3, liquid water content is few in the emulsification lotion, and selects compound emulsifying agent and compound oil phase material for use, can guarantee that this emulsification lotion cools to i.e. curing about 45 ℃ with the mixing of materials of being mixed with the anti-water ammonium nitrate of activation by the polyfoam carrier, thereby make explosive become graininess.(in other words, just solidify as long as this emulsification lotion is cooled to about 45 ℃, therefore, before the emulsification lotion solidified, film forming disperseed to coat other particle).
4, adopt special powder charge powder column pipe, this powder column pipe is different from hypocentrum cartridge commonly used, because each powder column pipe of hypocentrum cartridge commonly used all has the detonator seat, and material is tygon, adopt friction to connect, the a small amount of employing is threaded, and soft because of material, it is unreliable to connect, and because of each powder column pipe all has the detonator seat, its explosion transfer performance is unreliable, especially when propagation of explosion length during greater than 10 meters, can't realize smoothly at all.Because of loaded constitution of the present invention is selected for use fire-retardant, antistatic, the powder charge of hard PVC pipe, its intensity is big, compressive property is good, each shot hole has only the detonator seat in top, the detonator seat has two to fall fork (about existing this invention of the structural design grand celebration in 1998 of falling to pitch outward, but it is to do in addition specially, be not one but be connected with the powder column pipe with screw thread with the detonator seat, see also patent name seismic exploration seismic source well explosive tin hat, patent No. ZL 98215719.0, Granted publication CN2331001Y), the invention is characterized in a detonator seat and falls to pitch to be designed to a member that this member plays three effects (1) as plug; (2) the scene pre-installed detonator that detonates of going into the well; (3) when under the hypocentrum cartridge in well during projected depth, the fork that falls helps the location again, is unlikely to make powder column pipe emersion from well.
In sum, the present invention compares with other hypocentrum cartridge, and its remarkable advantage is
1) do not contain poisonous components such as any secondary explosive or TNT in the composition selecting for use of contained explosive, production safety, free from environmental pollution.
2) product is graininess, has free-running property preferably, helps minor diameter, the filling of long powder column.
3) loaded constitution is reasonable, adopts fire-retardant, antistatic, hard PVC pipe powder charge, good pressure-resistant performance, and each powder column pipe two ends seals with the plug viscose glue, and water resistance is reliable, and adjacent two powder column pipes adopt internal and external threads to connect, and easy to operate, explosion transfer performance is reliable and stable.
4) in well, can realize low velocity detonation, can satisfy consistent with the stratum velocity of longitudinal wave.
5) manufacture method is easy, and is reliable, is suitable for suitability for industrialized production.
Hypocentrum cartridge provided by the invention is widely used in coalfield, the three-dimensional 3-component earthquake exploration of oil.
Description of drawings
Fig. 1 is a focus structural representation of the present invention.
Referring to Fig. 1, hypocentrum cartridge of the present invention is to be composed in series by a plurality of powder column pipes, one end of each powder column pipe 1 is with internal thread plug 2, and viscose glue sealing, the other end is with external thread plug 3, also seal with viscose glue, blasting charge 4 in the pipe, the free end of the powder column pipe 1 of head end is provided with detonator seat 5 in addition, and what detonator seat 5 sidewalls were provided with symmetry pitches 6, and is provided with detonator line perforation 7, utilize between each powder column pipe set in, external thread plug 2,3 connect successively is fixed into the right cylinder shape, each powder column pipe range about 1.0 meters separate, the waterproof resistance to compression, the length overall of whole hypocentrum cartridge can be according to using needs to make random length between the 6-20 rice.
Embodiment
Following embodiment can make those skilled in the art more fully understand the present invention, but does not limit the present invention in any way.In addition, if no special instructions, the each component percentage composition is meant weight percentage among the present invention.<embodiment 1 〉
Making the explosion velocity scope is 1700~2000m/s hypocentrum cartridge, wherein each component content is: polystyrene foam carrier 5%, activate anti-water ammonium nitrate 45%, emulsification lotion 50%, activate wherein that the each component percentage composition is an ammonium nitrate 99% in the anti-water ammonium nitrate, AN-TNT containing explosive anticaking agent 0.2%, surfactivity water repellent agent 0.8%; Wherein the each component percentage composition is in the surfactivity water repellent agent: pitch 45%, paraffin 45%, succimide 5%, octadecane amine phosphate 5%; Emulsification lotion each component content is: ammonium nitrate 74.5%, sodium nitrate 14%, urea 2%, water 6%, compound oil phase material 2%, compound emulsifying agent 1.5%, and compound oil phase material is: 65% complex wax or paraffin and 35% machine oil; Compound emulsifying agent is: 50% anhydrous sorbitol list olein (commercial disignation SP-80) and 50% succimide (commercial disignation T-152).
The AN-TNT containing explosive anticaking agent is chemical plant, Shaoyang, Hunan in the embodiments of the invention, and Huainan industry institute's blasting engineering and equipment research institute produce, and complex wax or paraffin are produced for Jiangsu Taizhou Refinery, and is as follows.
Make hypocentrum cartridge of the present invention according to above-mentioned component and content with following preparation process:
A. lightweight foamed plastics is ground into irregular graininess, crosses 8 mesh sieves, standby;
B. with pitch, complex wax, succimide, octadecane amine phosphate under the condition of 90 ± 5 ℃ of temperature, carry out misciblely, whole miscible backs are standby 80 ℃ of left and right sides;
C. pulverized dry 10 minutes in the ammonium nitrate adding edge runner with coarse crushing, add the AN-TNT containing explosive anticaking agent and mixed 5 minutes, add the surfactivity water repellent agent again and roll mixing 12 minutes, control ammonium nitrate temperature is 65 ± 5 ℃;
D. ammonium nitrate, sodium nitrate, urea, water adding water are dissolved in the jar and dissolve, temperature is 110 ± 5 ℃, forms water; Compound oil phase material and compound emulsifying agent are melted in the oil phase melting pot, and temperature makes oil phase at 85 ± 5 ℃; Oil phase is added in the emulsion tank, and turn on agitator adds water slowly, emulsification blanking after 6 minutes, and it is standby to be cooled to 70 ℃ of insulations;
E. in kneader, add the polyfoam carrier earlier, turn on agitator adds the anti-water ammonium nitrate of activation slowly and mixes after 4 minutes, adds the emulsification lotion that is obtained by steps d, mixes discharging after 8 minutes, 50~55 ℃ of temperature;
F. the material that mixes is cooled to below 45 ℃, the diameter of packing into is in the hard PVC pipe (long 1 meter) of φ 25mm, earlier pvc pipe one end is sealed with arbitrary plug viscose glue, after filling explosive, again with another plug viscose glue sealing other end, according to customer requirements, the required powder column of each shot hole is tied into a bundle, but wherein have only a powder column Guan Yiduan to be provided with the detonator seat, the other end is the external thread plug, other powder column pipe two ends are respectively external thread plug and internal thread plug, with each top bundle powder column boxing for later use.The screw thread that utilizes inside and outside plug during use is in conjunction with being about to a plurality of powder column pipes series connection, finally makes the explosion velocity scope and provides use for the hypocentrum cartridge of 1700~2000m/s.<embodiment 2 〉
The explosion velocity scope is 1700~2000m/s hypocentrum cartridge, its component is: polystyrene foam carrier 4.5%, activate anti-water ammonium nitrate 40%, emulsification lotion 55.5%, wherein activate in the anti-water ammonium nitrate and contain: ammonium nitrate 99%, AN-TNT containing explosive anticaking agent 0.2%, surfactivity water repellent agent 0.8%; Wherein each component is in the surfactivity water repellent agent: pitch 42%, complex wax or paraffin 48%, succimide 5%, octadecane amine phosphate 5%; The component of emulsification lotion is: ammonium nitrate 76%, sodium nitrate 13%, urea 1.5%, water 6%, compound oil phase material 2%, compound emulsifying agent 1.5%, compound oil phase material contain 60% complex wax and 40% machine oil; Compound emulsifying agent contains 50% anhydrous sorbitol list olein and 50% succimide.According to above-mentioned component and content, according to the preparation process of embodiment 1, but charge diameter is φ 22mm, can produce the hypocentrum cartridge that the explosion velocity scope is 1700~2000m/s.<embodiment 3 〉
The explosion velocity scope is 2000~2300m/s hypocentrum cartridge, and its component is: polystyrene foam carrier 4.0% activates anti-water ammonium nitrate 48%, emulsification lotion 48%, wherein activate anti-water ammonium nitrate and contain ammonium nitrate 98.8%, AN-TNT containing explosive anticaking agent 0.3%, surfactivity water repellent agent 0.9%; Wherein the surfactivity water repellent agent contains: pitch 42%, complex wax 48%, succimide 4%, octadecane amine phosphate 6%; The emulsification lotion contains: ammonium nitrate 78.5%, sodium nitrate 11.5%, urea 1%, water 5%, compound oil phase material 2%, compound emulsifying agent 2%, and compound oil phase material contains: 50% complex wax and 50% machine oil; Compound emulsifying agent contains 55% anhydrous sorbitol list olein and 45% succimide.
Above-mentioned component and content according to the preparation process of embodiment 1, can be produced the hypocentrum cartridge that the explosion velocity scope is 2000~2300m/s.<embodiment 4 〉
The explosion velocity scope is 2000~2300m/s hypocentrum cartridge, and its component is: polystyrene foam carrier 3.5% activates anti-water ammonium nitrate 46.5%, emulsification lotion 50%, wherein activating anti-water ammonium nitrate is ammonium nitrate 99.1%, AN-TNT containing explosive anticaking agent 0.2%, surfactivity water repellent agent 0.7%; Wherein the surfactivity water repellent agent contains: pitch 48%, complex wax 42%, succimide 6%, octadecane amine phosphate 4%; The emulsification lotion contains: ammonium nitrate 81.5%, sodium nitrate 10%, urea 1%, water 5%, compound oil phase material 1.5%, compound emulsifying agent 1%, and wherein compound oil phase material comprises: 70% complex wax and 30% machine oil; Compound emulsifying agent is: 50% anhydrous sorbitol list olein and 50% succimide.
According to the preparation process of embodiment 1, but charge diameter is φ 22mm, can produce the hypocentrum cartridge that the explosion velocity scope is 2000~2300m/s.<embodiment 5 〉
The explosion velocity scope is 2300~2600m/s hypocentrum cartridge, its component is: polystyrene foam carrier 3.0%, activate anti-water ammonium nitrate 50%, emulsification lotion 47%, activate wherein that each component is in the anti-water ammonium nitrate: ammonium nitrate 98.8%, AN-TNT containing explosive anticaking agent 0.4%, surfactivity water repellent agent 0.8%; Wherein the surfactivity water repellent agent comprises: pitch 45%, paraffin 45%, succimide 5%, octadecane amine phosphate 5%; The component of emulsification lotion is: ammonium nitrate 74.5%, sodium nitrate 15%, urea 3%, water 5%, compound oil phase material 1.5%, compound emulsifying agent 1%, and wherein compound oil phase material comprises: 65% paraffin and 35% machine oil; Compound emulsifying agent contains: 50% anhydrous sorbitol list olein and 50% succimide.
According to above-mentioned component and content, according to the preparation process of embodiment 1, but charge diameter is φ 28mm, can produce the hypocentrum cartridge that the explosion velocity scope is 2300~2600m/s.<embodiment 6 〉
The explosion velocity scope is 2300~2600m/s hypocentrum cartridge, its component is: polystyrene foam carrier 3.5%, activate anti-water ammonium nitrate 44.5%, emulsification lotion 52%, activate wherein that each component is in the anti-water ammonium nitrate: ammonium nitrate 99%, AN-TNT containing explosive anticaking agent 0.2%, surfactivity water repellent agent 0.8%; And each component content is in the surfactivity water repellent agent: pitch 45%, complex wax 45%, succimide 5%, octadecane amine phosphate 5%; Each component content is in the emulsification lotion: ammonium nitrate 75.5%, sodium nitrate 12%, urea 2%, water 7%, compound oil phase material 2.5%, compound emulsifying agent 1%, and wherein compound oil phase material contains: 65% paraffin and 35% machine oil; Compound emulsifying agent contains: 45% anhydrous sorbitol list olein and 55% succimide.
According to above-mentioned component and content, according to the preparation process of embodiment 1, but charge diameter is φ 32mm, can produce the hypocentrum cartridge that the explosion velocity scope is 2300~2600m/s.

Claims (9)

1, a kind of high-resolution three-dimension three-component earthquake focus prospecting cannonball, the explosion velocity scope is 1700~2600m/s, it is characterized in that the explosive composition in this hypocentrum cartridge is by weight percentage: emulsification lotion 46~55.5, polyfoam carrier 3.0~5.0, the anti-water ammonium nitrate 40~50 of activation.
2, hypocentrum cartridge according to claim 1 is characterized in that the emulsification lotion contains by weight percentage: ammonium nitrate 73.5~81.5, sodium nitrate 10~15, urea 1~3, water 5~7, compound oil phase material 1.0~2.5, compound emulsifying agent 1~2.
3, hypocentrum cartridge according to claim 1 is characterized in that activating anti-water ammonium nitrate and contains by weight percentage: ammonium nitrate 98.8~99.1, surfactivity water repellent agent 0.7~0.9, AN-TNT containing explosive anticaking agent 0.2~0.4.
4, hypocentrum cartridge according to claim 1 is characterized in that the polyfoam carrier is the polyfoam of lightweight, and its density is: 0.015~0.028g/cm 3
5, hypocentrum cartridge according to claim 2 is characterized in that compound oil phase material contains by weight percentage: paraffin or complex wax 50~70; Machine oil 30~50; The component of compound emulsifying agent contains by weight percentage: anhydrous sorbitol list olein 45~55, succimide 45~55.
6, hypocentrum cartridge according to claim 3 is characterized in that the surfactivity water repellent agent contains by weight percentage: pitch 42~48, complex wax 42~48, succimide 4~6, octadecane amine phosphate 4~6.
7, according to each described hypocentrum cartridge of claim 1 to 6, it is characterized in that the powder charge total length is 6~20m, be to compose in series by more piece powder column pipe, each saves between the powder column pipe and connects by internal and external threads is fixing, has a detonator seat to be located on the free end of top powder column pipe.
8, hypocentrum cartridge according to claim 7, it is characterized in that said powder column pipe is a flame-retardant and anti-static hard PVC pipe, and on detonator seat sidewall, be provided with two forks, and each powder column pipe is connected into right cylinder by external thread plug and internal thread plug, and each powder column pipe is separate.
9, a kind of method of making each described hypocentrum cartridge of claim 1 to 6 is characterized in that may further comprise the steps:
A. polyfoam is ground into irregular graininess, and 100% mistake, 8 mesh sieves, make the polyfoam carrier;
B. with pitch, complex wax, succimide, octadecane amine phosphate in 80~90 ℃ of consolutes; Make the surfactivity water repellent agent;
C. after pulverizing dry 8~12 minutes in the ammonium nitrate adding edge runner with coarse crushing, add the AN-TNT containing explosive anticaking agent and mixed 4~6 minutes, add the material that is obtained by step b again and rolled 10~15 minutes, temperature is 60~70 ℃;
D. ammonium nitrate, sodium nitrate, urea, water heating are dissolved, temperature is 105~115 ℃, forms water; And with compound oil phase material and composite emulsifying agent material heat fused, temperature is 80~95 ℃, forms oil phase; Water and oil phase are made the emulsification lotion in 5~8 minutes through emulsification, be cooled to 60~70 ℃;
E. will be added by the polyfoam carrier that step a obtains in the kneader, turn on agitator adds the material that is obtained by step c slowly, mixes after 3~5 minutes, adds the material that is obtained by steps d again, mixes 6~8 minutes;
F. will be cooled to below 45 ℃ the powder column pipe of packing into, the sealing of two ends viscose glue by the material that step e obtains.
CNB011241705A 2001-08-17 2001-08-17 High-resolution three-dimension three-component earthquake focus prospecting cannonball and making method thereof Expired - Fee Related CN1166960C (en)

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CN102241552A (en) * 2011-04-29 2011-11-16 中北大学 High density rock powdery emulsion explosive and preparation method thereof
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CN101900518A (en) * 2010-07-02 2010-12-01 北京理工大学 Pre-reamed explosive source charge structure
CN101900518B (en) * 2010-07-02 2013-09-25 北京理工大学 Pre-reamed explosive source charge structure and method using structure to generate seismic wave
CN102606342A (en) * 2011-01-19 2012-07-25 徐清华 Metal/water/air reaction feedback type engine and high-speed sea flitting aircraft with diving function
CN102249829A (en) * 2011-04-20 2011-11-23 中国科学技术大学 Coated porous metal foam composite explosive and preparation method thereof
CN102249829B (en) * 2011-04-20 2012-11-07 中国科学技术大学 Coated porous metal foam composite explosive and preparation method thereof
CN102241552A (en) * 2011-04-29 2011-11-16 中北大学 High density rock powdery emulsion explosive and preparation method thereof
CN102241552B (en) * 2011-04-29 2013-03-27 中北大学 High density rock powdery emulsion explosive and preparation method thereof
CN103172477A (en) * 2013-04-12 2013-06-26 天津宏泰化工有限公司 Emulsion explosive and preparation method thereof
CN103172477B (en) * 2013-04-12 2016-06-29 天津宏泰化工有限公司 A kind of emulsion and preparation method thereof
CN106017241A (en) * 2016-07-13 2016-10-12 中国人民解放军理工大学 Modularized two-way linear shaped charge cutter

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