CN112573977A - Oil phase for underground mixed emulsion explosive and preparation method thereof - Google Patents
Oil phase for underground mixed emulsion explosive and preparation method thereof Download PDFInfo
- Publication number
- CN112573977A CN112573977A CN202011566747.5A CN202011566747A CN112573977A CN 112573977 A CN112573977 A CN 112573977A CN 202011566747 A CN202011566747 A CN 202011566747A CN 112573977 A CN112573977 A CN 112573977A
- Authority
- CN
- China
- Prior art keywords
- oil phase
- emulsifier
- emulsion explosive
- oil
- mixed emulsion
- 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
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Colloid Chemistry (AREA)
Abstract
The invention discloses an oil phase for underground mixed emulsion explosive and a preparation method thereof, wherein the oil phase comprises 0-15 parts by weight of composite wax; 50-60 parts by weight of base oil; 30-40 parts of an emulsifier. The invention takes composite wax and base oil continuous phase to form oil film for wrapping, and simultaneously, the composite wax is used as a combustible agent, an emulsifier is used as a surfactant, so that dispersed phase water phase is dispersed in the continuous phase oil phase in the form of tiny liquid beads, and a firm film is formed on the surfaces of the tiny liquid beads. The underground mixed emulsion explosive produced by using the oil phase has excellent anti-bumping performance, is not easy to return explosive in the filling process, has stable explosion performance, and accords with the technical development direction of the underground mixed emulsion explosive.
Description
Technical Field
The invention belongs to the technical field of emulsion explosives, and particularly relates to an oil phase for underground mixed emulsion explosives and a preparation method thereof.
Background
The emulsion explosive field mixed loading technology is a technology for realizing excavation blasting by loading raw materials or semi-finished products of emulsion explosives by a loading vehicle, driving the loading vehicle into a blasting operation field, mixing the explosives in the blasting field and pumping the mixture to a blast hole at the same time. The high-efficiency operation of mechanization, namely preparation and use, of the explosive obviously improves the blasting quality and the production efficiency, improves the safety of preparation, transportation and use of the explosive to the maximum extent, and becomes a main development direction of the current civil explosive technology.
In the emulsification process of the on-site mixed emulsion explosive, dispersed phase droplets are distributed in an oil phase material in a micron-sized size to form a thermodynamically unstable water-in-oil (W/O) structure, and the structural system can be damaged in the transportation and storage processes of the on-site mixed emulsion explosive and a matrix thereof, so that oil and water phases are separated, inorganic oxidants such as ammonium nitrate are caused to crystallize, and the performance of the explosive is finally reduced and even refused to explode. In actual production, in order to enhance the convenience and safety of production operation, an emulsifier, hydrocarbon fuel and other additives are usually compounded and combined to form a composite oil phase, the basic requirements of the composite oil phase are that the composite oil phase has good fluidity, strong emulsifying power and excellent stability, the content of the composite oil phase accounts for a small amount in the whole structural system, but the quality of the composite oil phase often determines the service performance of the emulsion explosive, so the matching coupling of the viscosity, chain length, molecular structure and the emulsifier of an oil phase material is very important to ensure that an oil film of a continuous phase has enough strength, and the oil film is prevented from deforming or breaking when inorganic oxidant such as ammonium nitrate is crystallized.
With the development of mining industry and the progress of resource exploration, many mines in China are gradually changed from open-pit mining to underground mining. The formula of the existing underground emulsion explosive used in China is relatively complex, the cost of raw materials is high, the types of the raw materials are many, the produced emulsion matrix is poor in stability and anti-bumping performance and easy to break emulsion, and the viscosity of the emulsion matrix is not suitable and is easy to cause the problems of filling return explosive into an upward blast hole and poor explosion performance.
Disclosure of Invention
In view of the above, the invention aims to overcome the problems of the existing underground mixed emulsion explosive, and provides an oil phase for the underground mixed emulsion explosive, which is suitable for underground environment, has excellent anti-bumping performance, is not easy to return explosive in the filling process, and has stable explosive performance, and a preparation method thereof.
The invention provides an oil phase for underground mixed emulsion explosive, which comprises the following components in parts by weight:
0-15 parts of composite wax;
50-60 parts by weight of base oil;
30-40 parts of an emulsifier.
Preferably, the composite wax is selected from one or more of mineral composite wax, palm wax and vegetable wax.
Preferably, the base oil is a petroleum base oil and/or a technical white oil.
Preferably, the kinematic viscosity of the base oil is less than or equal to 15mm at 100 DEG C2/s。
Preferably, the emulsifier is polyisobutylene succinic anhydride emulsifier and/or SP-80 emulsifier.
Preferably, the emulsifier is a polyisobutylene succinic anhydride emulsifier and an SP-80 emulsifier, and the mass ratio of the polyisobutylene succinic anhydride emulsifier to the SP-80 emulsifier is 1: (1.5-2.8).
Preferably, the kinematic viscosity of the polyisobutylene succinic anhydride emulsifier is 100-200 mm at 100 DEG C2/s。
Preferably, the kinematic viscosity of the oil phase for the underground mixed emulsion explosive at 100 ℃ is 8-20 mm2/s。
The invention also provides a preparation method of the oil phase for the underground mixed emulsified explosive, which comprises the following steps:
heating and melting the composite wax, then adding the base oil and the emulsifier, heating and stirring.
Preferably, the heating and melting temperature is 85-90 ℃; the heating and stirring temperature is 90-100 ℃; the heating and stirring time is 1-2 h.
The invention has the beneficial effects that:
1. the oil phase for the underground mixed emulsion explosive takes the composite wax and the base oil as continuous phases, can form a water-in-oil (W/O) structure consisting of an oil film and an emulsifier, and the emulsifier is taken as a surfactant to ensure that a dispersed phase water phase is dispersed in a continuous phase oil phase in the form of tiny liquid beads and form a firm film on the surfaces of the tiny liquid beads. The emulsion explosive produced by adopting the oil phase has excellent anti-bumping performance and stable detonation performance, does not return after being filled into a downhole upward blast hole, and accords with the technical development direction of downhole mixed emulsion explosive.
2. The oil phase for the underground mixed emulsion explosive has the advantages of simple preparation process, convenient use, simple and easily obtained raw materials and convenient industrial production.
Detailed Description
In order to make those skilled in the art better understand the technical scheme of the present invention, the present invention will be further described in detail with reference to the following embodiments, and the present invention is not particularly limited to the sources of all raw materials, and may be commercially available.
The invention aims to provide an oil phase for underground mixed emulsion explosive and a preparation method thereof, so that the obtained emulsion explosive has excellent anti-bumping performance in underground environment, is not easy to return explosive in the filling process and has stable explosive performance. Specifically, the invention firstly provides an oil phase for mixing and loading an emulsion explosive underground, which comprises the following components:
0-15 parts of composite wax;
50-60 parts by weight of base oil;
30-40 parts of an emulsifier.
The oil phase for the underground mixed emulsion explosive provided by the invention takes the composite wax and the base oil as continuous phases, can form a water-in-oil (W/O) structure consisting of an oil film and an emulsifier, the addition of the emulsifier can greatly reduce the interfacial tension of the oil phase and the water phase to form a stable emulsion system, and the oil phase material is exposed outside the system to play a role in protection and can also be used as a combustible agent.
The composite wax can be one or more of mineral composite wax, palm wax and vegetable wax, and in the embodiment of the invention, the mineral composite wax can be reduced three-line cerate or reduced four-line cerate.
The base oil can be selected from petroleum base oil and/or industrial white oil, in the embodiment of the invention, the petroleum base oil can be selected from 150N petroleum base oil, and the industrial white oil can be selected from 32# industrial white oil; the kinematic viscosity of the base oil is less than or equal to 15mm at 100 DEG C2And s. The viscosity of the oil phase is related to the strength of the formed interfacial film, so that the speed of emulsion layering, flocculation and coalescence can be reduced, the stability of an emulsion matrix is enhanced, and the storage period of the emulsion explosive is prolonged.
The matching of the emulsifier and the oil phase material has obvious influence on the stability and the detonation performance of the emulsion explosive, according to the invention, the emulsifier in the oil phase is a surfactant, so that the interfacial tension between the oil phase and the water phase can be effectively reduced, the dispersed phase water phase is dispersed in the continuous phase oil phase in the form of tiny liquid beads, and a firm film is formed on the surfaces of the tiny liquid beads, so that a uniform emulsion state is kept, in addition, the addition of the surfactant enables the surfaces of oil drops to be attached with electric charges, a layer of protective film is formed on the surfaces of the oil drops, so that emulsion is easier to be stabilized, the stability, the physicochemical performance and the detonation performance of the emulsion explosive are determined, and the emulsifier, the composite wax and the base oil are matched in different proportions, and can be applied to the production of underground mixed emulsion explosives under different.
The emulsifier of the invention can be polyisobutylene butylene glycolThe emulsifier is selected from polyisobutylene succinic anhydride emulsifier and SP-80 emulsifier, and the mass ratio of the polyisobutylene succinic anhydride emulsifier to the SP-80 emulsifier is 1: (1.5-2.8). The polyisobutylene succinic anhydride emulsifier has the kinematic viscosity of 100-200 mm at 100 DEG C2/s。
The kinematic viscosity of the oil phase for the underground mixed emulsion explosive is (8-20) mm at 100 DEG C2/s。
In order to obtain an oil phase for the underground mixed emulsion explosive, which has simple process and convenient use, the invention also provides a preparation method of the oil phase for the underground mixed emulsion explosive, comprising the following steps: heating and melting the composite wax, then adding the base oil and the emulsifier, heating and stirring.
In the preparation method, the heating and melting temperature is 85-90 ℃, then the base oil and the emulsifier are added for heating and stirring, and the heating and stirring temperature is 90-100 ℃; the heating and stirring time is 1-2 h.
The detailed description of the invention is provided in the following examples, wherein the polyisobutylene succinic acid amide is commercially available from aobo chemical technology ltd, anhui in grams.
Example 1 preparation of oil phase for downhole co-loading emulsion explosives
Firstly adding 15 parts by weight of three-line reducing cerate, heating and melting to 90 ℃, then adding 10 parts by weight of polyisobutylene succinic acid amide, 20 parts by weight of SP-80 emulsifier and 55 parts by weight of No. 32 industrial white oil, heating and stirring to 100 ℃, then preserving heat and stirring for 2 hours to obtain the oil phase for the underground mixed emulsion explosive, detecting the kinematic viscosity of the oil phase at 100 ℃ to be 8mm2/s。
Example 2 preparation of oil phase for downhole co-loading emulsion explosives
Firstly, 16 parts by weight of polyisobutylene succinic acid amide, 24 parts by weight of SP-80 emulsifier, 30 parts by weight of No. 32 industrial white oil and 30 parts by weight of 150N petroleum base oil are added, heated and stirred to 90 ℃, and then the mixture is kept warm and stirred for 1 hour, so that the oil phase for the underground mixed emulsion explosive is obtained, and the kinematic viscosity of the oil phase is detected to be 14mm at 100 DEG C2/s。
Example 3 preparation of oil phase for downhole co-loading emulsion explosives
Firstly adding 12 parts by weight of minus four line cerate, heating and melting to 85 ℃, then adding 10 parts by weight of polyisobutylene succinic acid amide, 28 parts by weight of SP-80 emulsifier, 30 parts by weight of No. 32 industrial white oil and 20 parts by weight of 150N petroleum base oil, heating and stirring to 95 ℃, then keeping the temperature and stirring for 1.5 hours to obtain the oil phase for the underground mixed emulsion explosive, detecting that the kinematic viscosity of the oil phase is 20mm at 100 DEG C2/s。
Example 4 preparation of oil phase for downhole co-loading emulsion explosives
The difference from example 1 is only that the reduced trilinear cerate was replaced with carnauba wax, and the kinematic viscosity of the oil phase was measured to be 10mm at 100 deg.C2/s。
EXAMPLE 5 preparation of oil phase for downhole co-loading emulsion explosives
The difference from example 1 is only that the reduced-trilinear cerate was replaced with a vegetable wax, and the kinematic viscosity of the oil phase was measured to be 12mm at 100 ℃2/s。
Comparative example 1 preparation of oil phase for underground mix emulsion explosive
Polyisobutylene succinic acid amide 20 parts by weight
25 parts by weight of SP-80 emulsifier
150N Petroleum base oil 65 parts by weight
Adding 20 parts by weight of polyisobutylene succinic acid amide25 parts by weight of SP-80 emulsifier and 65 parts by weight of 150N petroleum base oil, heating and stirring to 95 ℃, then keeping the temperature and stirring for 2 hours to obtain the oil phase for the underground mixed emulsion explosive, and detecting the kinematic viscosity of the oil phase to be 7.4mm at 100 DEG C2/s。
The oil phase for the downhole bulk emulsion explosive obtained in examples 1 to 5 and comparative example 1 was used to prepare a downhole bulk emulsion explosive: the water-oil phase mixture ratio is (93.5 +/-0.3): (6.5 +/-0.3); the mass percentages of ammonium nitrate and water in the water phase are respectively (79 +/-2.5)%, and (21 +/-2.5)%. Pumping the water phase and the oil phase into a static emulsifier for emulsification to form an emulsion matrix, pumping the emulsion matrix into a storage bin of an emulsion matrix transport vehicle through a screw pump, transporting the emulsion matrix to a blasting site, and sensitizing and foaming the emulsion matrix to obtain the underground mixed emulsion explosive.
Effect example 1 bump test of a downhole mix-in emulsion explosive base
20kg of the underground mixed emulsion explosive matrixes prepared in the examples 1 to 5 and the comparative example 1 are weighed for bump test, and the test conditions are as follows: the frequency is 350r/min, the vibration time is 5h, and the detection results are shown in Table 1.
TABLE 1 latex matrix bump test comparison
As can be seen from Table 1, compared with the comparative example, the viscosity and the state of the emulsion matrix obtained by using the oil phase of the invention do not obviously change before and after the bumping test, which shows that the emulsion explosive matrix prepared by using the oil phase for the underground mixed emulsion explosive provided by the invention has stable quality, excellent anti-bumping performance and easy transportation and storage.
Effect example 2 inversion flowability test of underground mix-packed emulsion explosive base
The mixed emulsion explosive matrices in the wells prepared in examples 1 to 5 and comparative example 1 were placed in a 2000mL graduated cylinder, and then inverted to observe the fluidity of the emulsion matrices.
TABLE 2 inverse latex matrix flowability test
As can be seen from Table 2, compared with the comparative examples, the emulsion matrix obtained by using the oil phase of the present invention has no tendency of backflow, and it is also fully demonstrated that the mixed emulsion explosive produced by the present invention does not return after being loaded into the downhole upper blast hole.
Effect example 3 high and Low temperature cycle test of underground Mixed emulsion explosive
The high and low temperature cycle tests were performed on the mixed emulsion explosives in the wells prepared in examples 1 to 5 and comparative example 1, and 5 emulsion explosives in the same batch were prepared into cartridges with a diameter of 32mm and a weight of 300g and were selected for the high and low temperature cycle tests.
The test conditions are as follows: the temperature is-40 deg.C-50 deg.C (storing at 50 deg.C for 8h, and storing at-40 deg.C for 16h as a cycle), and the detection results are shown in Table 3.
TABLE 3 testing of detonation velocity under emulsion explosive high and low temperature cycling test
The test is used for determining the storage, transportation and use adaptability of the product under the high and low temperature climate environment conditions, and table 3 shows that the emulsion explosive in the comparative example 1 has obvious change through the high and low temperature cycle test, while the emulsion explosive prepared in the examples 1 to 5 of the invention has unobvious change of the detonation velocity through the high and low temperature cycle test, which indicates that the oil phase for the underground mixed emulsion explosive provided by the invention can also keep stable in the underground severe environment.
In conclusion, the oil phase raw materials for the underground mixed emulsion explosive provided by the invention are simple and easy to obtain, the process flow is simple and convenient, and compared with the traditional explosive, the emulsion explosive prepared by the oil phase for the underground mixed emulsion explosive provided by the invention has proper viscosity, excellent stability and explosion performance under the well, does not return the explosive, is suitable for the requirement of underground operation, and shows excellent comprehensive performance.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. An oil phase for underground mixed emulsion explosive is characterized by comprising the following components in parts by weight:
0-15 parts of composite wax;
50-60 parts by weight of base oil;
30-40 parts of an emulsifier.
2. The oil phase for a downhole mixed emulsion explosive according to claim 1, wherein the compound wax is one or more selected from mineral compound wax, palm wax and vegetable wax.
3. The oil phase for a downhole mixed emulsion explosive according to claim 1, wherein the base oil is a petroleum base oil and/or an industrial white oil.
4. The oil phase for a mixed emulsion explosive under well according to claim 1 or 3, wherein the kinematic viscosity of the base oil is 15mm or less at 100 ℃2/s。
5. The oil phase for a mixed emulsion explosive downhole according to claim 1, wherein the emulsifier is a polyisobutylene succinic anhydride emulsifier and/or an SP-80 emulsifier.
6. The oil phase for the mixed emulsion explosive in the well according to claim 5, wherein the emulsifier is polyisobutylene succinic anhydride emulsifier and SP-80 emulsifier; the mass ratio of the polyisobutylene succinic anhydride emulsifier to the SP-80 emulsifier is 1: (1.5-2.8).
7. The oil phase for the mixed emulsion explosive in the well according to claim 5 or 6, wherein the kinematic viscosity of the polyisobutylene succinic anhydride emulsifier is 100-200 mm at 100 ℃2/s。
8. The oil phase for the underground mixed emulsion explosive according to claim 1, wherein the kinematic viscosity of the oil phase for the underground mixed emulsion explosive at 100 ℃ is 8-20 mm2/s。
9. A method of preparing an oil phase for a downhole emulsion explosive according to claim 1, comprising: heating and melting the composite wax, then adding the base oil and the emulsifier, heating and stirring.
10. The method for preparing the alloy material according to claim 9, wherein the temperature for heating and melting is 85-90 ℃; the heating and stirring temperature is 90-100 ℃; the heating and stirring time is 1-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566747.5A CN112573977A (en) | 2020-12-25 | 2020-12-25 | Oil phase for underground mixed emulsion explosive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566747.5A CN112573977A (en) | 2020-12-25 | 2020-12-25 | Oil phase for underground mixed emulsion explosive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112573977A true CN112573977A (en) | 2021-03-30 |
Family
ID=75140662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011566747.5A Pending CN112573977A (en) | 2020-12-25 | 2020-12-25 | Oil phase for underground mixed emulsion explosive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112573977A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906466A (en) * | 2016-04-19 | 2016-08-31 | 贵州巨能化工有限公司 | A liquid composite oil phase used for an emulsion explosive and a preparing method thereof |
| CN110357750A (en) * | 2019-07-31 | 2019-10-22 | 北矿亿博(沧州)科技有限责任公司 | Compound oil phase for emulsion explosive and preparation method thereof, emulsified bases and emulsion |
| CN110964135A (en) * | 2019-11-20 | 2020-04-07 | 湖北同一科技有限公司 | Oxygen-enriched emulsifier for emulsion explosive and preparation method thereof |
-
2020
- 2020-12-25 CN CN202011566747.5A patent/CN112573977A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906466A (en) * | 2016-04-19 | 2016-08-31 | 贵州巨能化工有限公司 | A liquid composite oil phase used for an emulsion explosive and a preparing method thereof |
| CN110357750A (en) * | 2019-07-31 | 2019-10-22 | 北矿亿博(沧州)科技有限责任公司 | Compound oil phase for emulsion explosive and preparation method thereof, emulsified bases and emulsion |
| CN110964135A (en) * | 2019-11-20 | 2020-04-07 | 湖北同一科技有限公司 | Oxygen-enriched emulsifier for emulsion explosive and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1103033A (en) | Emulsion blasting composition | |
| EP0004160B1 (en) | Explosive compositions and method for their manufacture | |
| US6165297A (en) | Process and apparatus for the manufacture of emulsion explosive compositions | |
| US4500369A (en) | Emulsion explosive | |
| AU609943B2 (en) | Blasting composition | |
| US5026442A (en) | Melt-in-fuel emulsion explosive composition and method | |
| EP0194775A1 (en) | Stable nitrate/slurry explosives | |
| EP0123388A2 (en) | Water-in-wax emulsion blasting agent | |
| JP2942265B2 (en) | Emulsion explosive containing phenolic emulsifier derivative | |
| US10065899B1 (en) | Packaged granulated explosive emulsion | |
| CN1029521C (en) | Granulated emulsion explosive for rocks | |
| CN106008122A (en) | Powdery emulsion explosive for on-site mixed loading and preparation method of powdery emulsion explosive | |
| CN112236406B (en) | Method and apparatus for charging a borehole with a bulk water-based suspension or a hydrogel-type explosive | |
| US6808573B2 (en) | Emulsion phase having improved stability | |
| CN112573977A (en) | Oil phase for underground mixed emulsion explosive and preparation method thereof | |
| EP0460952A2 (en) | Emulsion that is compatible with reactive sulfide/pyrite ores | |
| CN103288568A (en) | Bulk emulsion explosive used for blasting underground mine and preparation method thereof | |
| US6942744B2 (en) | Emulsion explosive | |
| US4084993A (en) | Stable blasting slurry | |
| CA2748090C (en) | Amine reacted alpha, beta-unsaturated carbonyl compound thickened explosive emulsions | |
| US6539870B1 (en) | Blasting method for reducing nitrogen oxide fumes | |
| CA2301552C (en) | Explosives gasser composition and method | |
| US6855219B2 (en) | Method of gassing emulsion explosives and explosives produced thereby | |
| RU2277523C2 (en) | Emulsion explosive composition and the method of its production | |
| CN112876326A (en) | Mixed emulsion explosive and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |