CN112483086A - System for causing metal ore bed to be cracked by instant electric pulse and using method - Google Patents
System for causing metal ore bed to be cracked by instant electric pulse and using method Download PDFInfo
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- CN112483086A CN112483086A CN202011191921.2A CN202011191921A CN112483086A CN 112483086 A CN112483086 A CN 112483086A CN 202011191921 A CN202011191921 A CN 202011191921A CN 112483086 A CN112483086 A CN 112483086A
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- 239000002184 metal Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims abstract description 61
- 238000004146 energy storage Methods 0.000 claims abstract description 57
- 238000002386 leaching Methods 0.000 claims abstract description 30
- 238000011065 in-situ storage Methods 0.000 claims abstract description 16
- 238000013467 fragmentation Methods 0.000 claims abstract description 15
- 238000006062 fragmentation reaction Methods 0.000 claims abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 9
- 238000007405 data analysis Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 7
- 238000013480 data collection Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 2
- 238000012795 verification Methods 0.000 claims description 2
- 238000004901 spalling Methods 0.000 claims 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/18—Other methods or devices for dislodging with or without loading by electricity
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M11/00—Power conversion systems not covered by the preceding groups
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Geology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention provides a system for causing metal ore bed fragmentation by transient electric pulse and a use method thereof, belonging to the technical field of in-situ leaching exploitation. The system comprises a transformer, a rectifier, an energy storage capacitor, an energy controller, a discharge electrode and the like, wherein the transformer is connected with the rectifier and used for converting alternating current into direct current, the rectifier is connected with the energy storage capacitor through threads, the energy storage capacitor is connected with the energy controller, the energy controller is connected with the energy converter, and the energy converter is connected with the discharge electrode and used for carrying out instantaneous electrical pulse action on an ore body so as to break a metal ore bed. The device is rational in infrastructure, and it is convenient to use, can effectual increase normal position leaching exploitation in-process slit passage, makes the mineral leaching liquid more abundant with the ore contact, provides the help for improving normal position leaching efficiency.
Description
Technical Field
The invention relates to the technical field of in-situ leaching exploitation, in particular to a system for causing metal ore bed fragmentation by instantaneous electric pulse and a using method thereof.
Background
In-situ leaching refers to injecting a solution from the earth surface into a deep-ground ore body through a liquid injection drill hole, carrying out leaching reaction on the solution and a target mineral in the flowing process of the solution in the ore body, enabling obtained soluble metal ions to enter the solution, lifting the solution to the earth surface through a liquid extraction hole, and finally obtaining a metal product through an extraction-electrodeposition process. The technology can realize underground unmanned operation, avoids environmental damage caused by ore body excavation, and has the characteristics of high safety, small pollution, low cost and the like. The process of flowing the solution in the ore body is the core of the whole ore leaching process, and the research on pore evolution plays an important role in promoting and developing the in-situ leaching technology. In recent years, many researchers have conducted some basic experimental studies on the performance changes of in situ immersion under various environmental conditions.
When various factors influencing the in-situ leaching performance are researched, the pore structure often plays a crucial role. The pore-cracking structure of the leaching system is the 'skeleton' of the leaching reaction system, leaching solution can reach a reaction interface only through the pore-cracking structure, and then is in contact with minerals to generate chemical reaction, and the corroded metal ions also need to be transported through the pore-cracking network, so that the leaching reaction system has important influence on mineral leaching. In the actual in-situ leaching process, the complex deep-ground environment of high temperature, high osmotic pressure and high ground pressure is encountered, and along with the progress of the leaching reaction, the pore fracture evolution in different time periods is dynamic, so that the pore fracture change under a single condition researched in a laboratory can not be matched with the actual condition. For example: the seepage fracture data obtained in the laboratory process is much greater than that of deep in situ leaching, due to the compression of seepage fractures caused by high and low pressures. Therefore, how to improve the microcrack structure of the ore body species and the leaching rate in the in-situ leaching process becomes a wide research object.
In conclusion, it is very important to research the seepage cracks in the in-situ leaching process. However, there are currently few reports or studies on this technology. The invention aims to provide a method for causing metal ore bed fragmentation by instantaneous electric pulse, which provides a technical basis for improving the precision of in-situ leaching design.
Disclosure of Invention
The invention aims to provide a system for causing metal ore bed fragmentation by transient electric pulse and a using method thereof.
The system comprises a transformer, a rectifier, an energy storage capacitor, an energy controller, an energy converter, a discharge electrode, a sleeve protection device, a data acquisition instrument, a data analysis system, a transmission data line and a pressure gauge, wherein the transformer is connected with the rectifier and used for converting alternating current into direct current, the rectifier is in threaded connection with the energy storage capacitor, the energy storage capacitor is connected with the energy controller, the energy controller is connected with the energy converter, one end of the energy converter is connected with the energy storage capacitor, the other end of the energy converter is connected with the discharge electrode, the other end of the discharge electrode is connected with the data acquisition instrument, the data acquisition instrument is connected with the data analysis system through the transmission data line, the pressure gauge is arranged on the transmission data line between the data acquisition instrument and the data analysis system, and the sleeve protection device is arranged.
The transformer can be used for selectively increasing or reducing the voltage according to the intensity of the ore bed, and the transformer is connected with the rectifier to realize the conversion from alternating current to direct current.
The energy storage capacitors are two groups, each group of energy storage capacitors are formed by connecting the energy storage capacitors in series end to end through threads, and the two groups of energy storage capacitors which are independent mutually are connected in parallel.
The energy controller is provided with various control buttons, so that the connection mode in the energy storage capacitor can be changed, the free conversion of series connection and parallel connection between capacitors is realized, and further the energy output is free
The energy converter converts the electric energy into an instantaneous electric pulse, the discharge electrode is directly contacted with an ore body, and the generation of the micro-cracks is realized by releasing the instantaneous electric pulse.
The casing protection device plays a role in protecting the metal ore bed fragmentation device caused by the whole instant electric pulse in a mode of connecting the internal thread and the external thread.
The using method of the system specifically comprises the following steps:
s1: analyzing and calculating according to conditions such as in-situ leaching ore body area, ore body depth, leaching solution volume and the like to obtain the range of the metal ore layer fragmentation caused by the required instantaneous electric pulse;
s2: drilling a vertical hole in the ore body by using a drilling machine, and roughly recording the depth of the drilled hole;
s3: the sleeve protection device formed by connecting the internal thread and the external thread is integrally plugged into the vertical drill hole;
s4: placing the first section of energy storage capacitor into a sleeve protection device, and fixing an energy converter and a discharge electrode to the end part of the first section of energy storage capacitor;
s5: then continuously tightening the rest energy storage capacitors by using the same method described in S4 and sending the energy storage capacitors into the casing protection device, and comparing and verifying the quantity of the energy storage capacitors with the length of the drill hole (a data analysis system can record the size of electric pulses required by various ore crushing at different depths, and the verification of the energy storage capacitors and the length of the drill hole can determine the size of the output electric pulses according to the quantity of the energy storage capacitors, so that the comparison with the data analysis system is carried out, and the accuracy and the practicability of the invention are further improved);
s6: turning on a power supply of the data acquisition instrument and starting to collect data;
s7: opening an energy controller, and applying pressure to the ore body to form a crack;
s8: after the data collection is finished, downloading the data through the port;
s9: taking out the sleeve protection device, arranging and arranging the energy storage capacitor, the energy converter and the discharge electrode, and storing energy in the energy storage capacitor again to ensure that the electric quantity is sufficient;
s10: and (4) analyzing and recording the metal ore layer fragmentation caused by each instantaneous electric pulse by using a data analysis system.
The technical scheme of the invention has the following beneficial effects:
according to the scheme, seams can be simultaneously and accurately formed on the ore body, real-time, online and continuous monitoring data can be obtained, and accurate basis is provided for analysis of in-situ leaching mining. The method mainly has the following advantages: firstly, the method is suitable for seam making behaviors of any ore body, namely high-hardness rock mass and low-hardness rock mass; secondly, seam forming can be accurately carried out on the ore body, the farthest monitoring distance can reach hundreds of meters, the monitoring requirement is far met, and meanwhile, a reliable basis is provided for later indoor related tests; thirdly, data in the whole seam making process are automatically collected by an acquisition system, and the process is safe and efficient; fourth, due to the portability and flexibility of the system, the operating points can be flexibly arranged according to the specific conditions of each ore body. Fifthly, the high pressure application range of deep rock crushing can be roughly determined according to the data collection system, and can be regulated and controlled; meanwhile, the system has the characteristics of simplicity in operation, relatively low manufacturing cost, long service life, intellectualization and the like, can provide a field basis for indoor design of in-situ leaching mining in the future, and has strong theoretical and practical values.
Drawings
FIG. 1 is a block diagram of a system for causing fragmentation of a metal deposit by an instantaneous electric pulse in accordance with the present invention;
FIG. 2 is a schematic diagram of transformer area division of the system of the present invention;
FIG. 3 is a schematic diagram of the connection of the energy storage capacitors of the system of the present invention.
Wherein: 1-transformer, 2-rectifier, 3-energy storage capacitor, 4-energy controller, 5-energy converter, 6-discharge electrode, 7-casing protection device, 8-transmission data line, 9-data analysis system, 10-data acquisition instrument, 11-pressure gauge, 12-high voltage transformer control area, 13-low voltage transformer control area, 14-internal and external screw connection, 15-energy storage capacitor parallel connection and 16-energy storage capacitor series connection.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a system for causing metal ore bed fragmentation by transient electric pulse and a using method thereof.
As shown in fig. 1, the system comprises a transformer 1, a rectifier 2, an energy storage capacitor 3, an energy controller 4, an energy converter 5, a discharge electrode 6, a casing protection device 7, a transmission data line 8, a data analysis system 9, a data acquisition instrument 10 and a pressure gauge 11, wherein the transformer 1 is connected with the rectifier 2 for converting alternating current into direct current, the rectifier 2 is connected with the energy storage capacitor 3 through a screw thread, the energy storage capacitor 3 is connected with the energy controller 4, the energy controller 4 is connected with the energy converter 5, one end of the energy converter 5 is connected with the energy storage capacitor 3, the other end of the energy converter 5 is connected with the discharge electrode 6, the other end of the discharge electrode 6 is connected with the data acquisition instrument 10, the data acquisition instrument 10 is connected with the data analysis system 9 through the transmission data line 8, the pressure gauge 11 is arranged on the transmission data line 8 between the data acquisition instrument 10 and the, the energy storage capacitor 3 and the energy converter 5 are externally provided with a sleeve protection device 7.
The transformer 1 is used for selectively increasing or reducing the voltage according to the intensity of the ore bed, and the transformer 1 is connected with the rectifier 2 to realize the conversion from alternating current to direct current. The transformer in the system of the invention is divided into a high voltage transformer control area 12 and a low voltage transformer control area 13, as shown in fig. 2, the transformer 1 is connected with the rectifier 2 by an internal and external thread connection 14.
As shown in fig. 3, the energy storage capacitors 3 are two groups, each group of energy storage capacitors is formed by connecting the energy storage capacitors end to end in series through threads to form an energy storage capacitor series connection 16, and two groups of mutually independent energy storage capacitors are connected in parallel to form an energy storage capacitor parallel connection 15.
Various control buttons are arranged on the energy controller 4, and energy output freedom is realized by changing the series-parallel connection of the energy storage capacitor 3.
The energy converter 4 converts the electric energy into an instantaneous electric pulse, the discharge electrode 6 is directly contacted with an ore body, and the generation of the micro-cracks is realized by releasing the instantaneous electric pulse.
The casing protection device 7 plays a role in protecting the metal ore bed fragmentation device caused by the whole instant electric pulse in a mode of connecting the internal thread and the external thread, and the number of the required casing protection devices 7 is calculated according to the requirement in actual monitoring.
When the system is applied, the specific operation method is as follows:
(1) and analyzing and calculating according to conditions such as in-situ leaching ore body area, ore body depth, leaching solution volume and the like to obtain the range of the metal ore layer fragmentation caused by the required instantaneous electric pulse.
(2) And (4) vertically drilling a hole in the ore body by using a drilling machine, and roughly recording the drilling depth.
(3) And the whole casing protection device formed by connecting the internal thread and the external thread is plugged into the vertical drill hole.
(4) And placing the first section of energy storage capacitor into the sleeve protection device, and fixing the energy converter and the discharge electrode to the end part of the first section of energy storage capacitor.
(5) The remaining storage capacitors were then successively tightened and fed into the casing protector in the same manner as described in (4) above, and the number of storage capacitors was verified against the length of the borehole.
(6) And starting a power supply of the data acquisition instrument to start data collection.
(7) And opening the energy controller to apply pressure to the ore body to form the crack.
(8) And after the data collection is finished, downloading the data through the port.
(9) And taking out the sleeve protection device, arranging and arranging the energy storage capacitor, the energy converter and the discharge electrode, and storing energy in the energy storage capacitor again to ensure that the electric quantity is enough.
(10) And (4) analyzing and recording the metal ore layer fragmentation caused by each instantaneous electric pulse by using a data analysis system.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A system for causing fragmentation of a metal deposit by an instantaneous electric pulse, comprising: comprises a transformer (1), a rectifier (2), an energy storage capacitor (3), an energy controller (4), an energy converter (5), a discharge electrode (6), a sleeve protection device (7), a transmission data line (8), a data analysis system (9), a data acquisition instrument (10) and a pressure gauge (11), wherein the transformer (1) is connected with the rectifier (2) and used for converting alternating current into direct current, the rectifier (2) is connected with the energy storage capacitor (3) through threads, the energy storage capacitor (3) is connected with the energy controller (4), the energy controller (4) is connected with the energy converter (5), one end of the energy converter (5) is connected with the energy storage capacitor (3), the other end of the energy converter (5) is connected with the discharge electrode (6), the other end of the discharge electrode (6) is connected with the data acquisition instrument (10), the data acquisition instrument (10) is connected with the data analysis system (9) through the transmission data line (8), a pressure gauge (11) is arranged on a transmission data line (8) between the data acquisition instrument (10) and the data analysis system (9), and a sleeve protection device (7) is arranged outside the energy storage capacitor (3) and the energy converter (5).
2. The system for causing spalling of a metal seam using transient electric pulses as in claim 1, wherein: the transformer (1) selectively boosts or reduces the voltage according to the intensity of the ore bed.
3. The system for causing spalling of a metal seam using transient electric pulses as in claim 1, wherein: the energy storage capacitors (3) are two groups, each group of energy storage capacitors (3) are connected in series end to end through threads, and the two groups of energy storage capacitors (3) which are independent of each other are connected in parallel.
4. The system for causing spalling of a metal seam using transient electric pulses as in claim 1, wherein: the energy controller (4) can change the connection mode inside the energy storage capacitor (3), realize free conversion between series connection and parallel connection of the capacitors, and further enable energy to be output freely.
5. The system for causing spalling of a metal seam using transient electric pulses as in claim 1, wherein: the energy converter (5) converts electric energy into an instantaneous electric pulse, the discharge electrode (6) is directly contacted with an ore body, and the generation of micro cracks is realized by releasing the instantaneous electric pulse.
6. The system for causing spalling of a metal seam using transient electric pulses as in claim 1, wherein: the sleeve protection device (7) plays a role in protecting the metal ore bed fragmentation device caused by the whole instant electric pulse in a mode of connecting the internal thread and the external thread.
7. A method of using the system for causing spalling of a metal seam using the transient electric pulse of claim 1, wherein: the method comprises the following steps:
s1: analyzing and calculating the range of the required instantaneous electric pulse to cause the metal ore layer to be cracked according to the in-situ leaching ore body area, the ore body depth and the leaching solution volume;
s2: drilling a vertical hole in an ore body by using a drilling machine, and recording the depth of the drilled hole;
s3: the sleeve protection device (7) formed by connecting the internal thread and the external thread is integrally plugged into the vertical drill hole;
s4: placing the first section of energy storage capacitor (3) into a sleeve protection device (7), and fixing an energy converter (5) and a discharge electrode (6) to the end part of the first section of energy storage capacitor (3);
s5: then continuously tightening the rest energy storage capacitors (3) and sending the rest energy storage capacitors into the casing protection device (7) by the same method in S4, and comparing the number of the energy storage capacitors (3) with the length of the drilled hole for verification;
s6: turning on a power supply of the data acquisition instrument (10) and starting to collect data;
s7: opening the energy controller (4), and applying pressure to the ore body to form a crack;
s8: after the data collection is finished, downloading the data through the port;
s9: taking out the sleeve protection device (7), arranging and arranging the energy storage capacitor (3), the energy converter (5) and the discharge electrode (6), and storing energy in the energy storage capacitor (3) again to ensure that the electric quantity is sufficient;
s10: and (3) analyzing and recording the metal ore layer fragmentation caused by each instantaneous electric pulse by using a data analysis system (9).
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104470A (en) * | 1986-06-27 | 1988-01-06 | Ceee公司 | The method and apparatus of fragmenting substance by discharge of pulsed electrical energy |
| CN1191587A (en) * | 1995-06-06 | 1998-08-26 | 麦斯韦尔技术股份有限公司 | Method and apparatus for blasting hard rock |
| CN1461239A (en) * | 2001-04-06 | 2003-12-10 | 住友电气工业株式会社 | Curshing apparatus electrode and crushing apparatus |
| WO2008097101A1 (en) * | 2007-02-09 | 2008-08-14 | Statoilhydro Asa | Assembly for drilling and logging, method for drilling and logging and device for electro pulse drilling |
| EA200802037A1 (en) * | 2008-08-25 | 2010-02-26 | Государственное Образовательное Учреждение Высшего Профессионального Образования "Московский Государственный Горный Университет (Мггу) | SYSTEM FOR CRUSHING OF MINING IN COMPLEX-STRUCTURAL MASSIFIES OF STRONG SPECIES |
| CN207470182U (en) * | 2017-11-17 | 2018-06-08 | 金川集团股份有限公司 | A kind of slot raise reservation device |
| CN111350504A (en) * | 2020-04-08 | 2020-06-30 | 四川大学 | On-site microwave rock breaking simulation system and simulation method |
| CN111350503A (en) * | 2020-03-03 | 2020-06-30 | 中国矿业大学 | Method for forming roadway anti-impact weak structural layer by coal rock pulse controllable strong wave induced cracking coal rock |
| CN111396049A (en) * | 2020-03-23 | 2020-07-10 | 中国矿业大学(北京) | Safe and environment-friendly rock blasting device and method |
-
2020
- 2020-10-30 CN CN202011191921.2A patent/CN112483086B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104470A (en) * | 1986-06-27 | 1988-01-06 | Ceee公司 | The method and apparatus of fragmenting substance by discharge of pulsed electrical energy |
| CN1191587A (en) * | 1995-06-06 | 1998-08-26 | 麦斯韦尔技术股份有限公司 | Method and apparatus for blasting hard rock |
| CN1461239A (en) * | 2001-04-06 | 2003-12-10 | 住友电气工业株式会社 | Curshing apparatus electrode and crushing apparatus |
| WO2008097101A1 (en) * | 2007-02-09 | 2008-08-14 | Statoilhydro Asa | Assembly for drilling and logging, method for drilling and logging and device for electro pulse drilling |
| EA200802037A1 (en) * | 2008-08-25 | 2010-02-26 | Государственное Образовательное Учреждение Высшего Профессионального Образования "Московский Государственный Горный Университет (Мггу) | SYSTEM FOR CRUSHING OF MINING IN COMPLEX-STRUCTURAL MASSIFIES OF STRONG SPECIES |
| CN207470182U (en) * | 2017-11-17 | 2018-06-08 | 金川集团股份有限公司 | A kind of slot raise reservation device |
| CN111350503A (en) * | 2020-03-03 | 2020-06-30 | 中国矿业大学 | Method for forming roadway anti-impact weak structural layer by coal rock pulse controllable strong wave induced cracking coal rock |
| CN111396049A (en) * | 2020-03-23 | 2020-07-10 | 中国矿业大学(北京) | Safe and environment-friendly rock blasting device and method |
| CN111350504A (en) * | 2020-04-08 | 2020-06-30 | 四川大学 | On-site microwave rock breaking simulation system and simulation method |
Non-Patent Citations (4)
| Title |
|---|
| 何桂春等: "超声波技术在选矿中的应用", 《金属矿山》 * |
| 吴春平等: "***动光弹实验装置的改进及装药结构设计", 《工程***》 * |
| 宋军涛等: "电脉冲对P510L钢的影响", 《北京科技大学学报》 * |
| 汪旭光等: "俄罗斯***器材的发展历程与现状", 《工程***》 * |
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