CN213726983U - Environment-friendly blasting device - Google Patents
Environment-friendly blasting device Download PDFInfo
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- CN213726983U CN213726983U CN202022238089.9U CN202022238089U CN213726983U CN 213726983 U CN213726983 U CN 213726983U CN 202022238089 U CN202022238089 U CN 202022238089U CN 213726983 U CN213726983 U CN 213726983U
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Abstract
The utility model provides an environment-friendly blasting device belongs to power electronic technology field, in particular to utilize high-pressure heavy current discharge's blasting device, and the device includes high-voltage pulse generator, coaxial transmission line and high tension pole etc. and high-voltage pulse generator is used for producing ten thousand volt level electric pulses, and coaxial transmission line is used for effectively transmitting the electric pulse, and high tension pole be electric pulse output unit and with by broken thing contact. The utility model discloses utilize high-voltage electric pulse, will be heated rapidly by the inside small air gap of broken thing, small air gap heating inflation back, form the local explosion of countless and then develop to conducted cracked, the device has compensatied the not enough of current crushing technique, has accurate controllable, green, cost-effective ratio advantage such as high, can be extensive be applied to fields such as aerospace, exploration, mining, directional blasting, particle manufacturing, environmental protection processing.
Description
Technical Field
The utility model relates to an environment-friendly blasting device belongs to power electronics technical field, especially an utilize device of high-pressure heavy current discharge rubble.
Background
The breaking of hard solids such as rock or aggregate of mixtures is a behavior closely related to human activities, and is the most basic and common operation in the fields of exploration, mining, medical treatment, environmental protection and the like. With the progress of society and the development of science and technology, people have higher and higher requirements on crushing, and the requirements on safety, efficiency, consumption and environmental protection are higher.
There are three common methods of disruption: mechanical, chemical and physical methods. Mechanical methods include gyratory crushing, impact crushing, and vibratory crushing, among others. Chemical methods mainly utilize chemical agents to achieve fragmentation. Physical laws include thermal disruption, high-pressure water jet disruption, electron beam disruption, and laser disruption. Although the traditional crushing method is simple and easy to implement, particularly the chemical method is the most widely applied method at present, the defects are obvious, and the defects are reflected in large consumption at one time and potential safety hazards. Although the electron beam crushing and the laser crushing have advanced technology, the crushing is still realized by utilizing long-time heat energy accumulation in principle, so the energy consumption is large, the equipment is expensive and the efficiency is low.
With the increasing level of recognition, it has been found that hard solids such as rocks or aggregates of mixtures are not completely dense solids, but are composed of a large number of crystallites with air gaps inside. When a high voltage electric pulse is applied, the tiny air gaps can be rapidly heated and expanded to form countless local explosions which can be further developed into conductive fragmentation. In addition, when the electric pulse duration is short, the primary energy consumption is relatively low, and the electric pulse duration can be repeatedly carried out under the same energy supply condition, so that the production efficiency is improved, and the crushing effect is fully ensured. Based on the new findings, how to design a novel environment-friendly blasting device which can realize high-efficiency blasting operation by only consuming electric energy becomes a technical difficulty in the current field.
SUMMERY OF THE UTILITY MODEL
In the face of the above technical background, the utility model provides a novel environment-friendly blasting device utilizes the high-voltage electric pulse, will be heated rapidly by the inside small air gap of broken thing, and after small air gap heating inflation, it is cracked to form countless local explosion and then develop to the conductibility, and the device has compensatied the not enough of current crushing technique, has accurate controllable, green, cost-effectiveness ratio advantage such as high, can be extensive be applied to fields such as aerospace, exploration, mining, directional blasting, particle manufacturing, environmental protection processing.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions
The utility model provides an environment-friendly blasting device which characterized in that, includes high voltage pulse generator, coaxial transmission line and high voltage electrode, wherein: the high-voltage pulse generator is used for generating kilovolt-level electric pulses; the coaxial transmission line is used for effectively transmitting the kilovolt-level electric pulse to the high-voltage electrode; the high-voltage electrode is used as an output component of electric pulse and is hermetically arranged in a pre-buried hole of a crushed object, and a blasting medium is filled in the pre-buried hole.
Preferably, the high-voltage pulse generator comprises one or a combination of a TESLA pulse modulator, a MARX generator, an LTD induction superimposer and an LC resonance high-voltage generator;
the working parameters of the kilovolt-level electric pulse in the high-voltage pulse generator comprise voltage amplitude, current amplitude, pulse width and repetition frequency, wherein: the voltage amplitude ranges from 10 to 50 kilovolts; the range of the current amplitude is 0.2-1 kilo amperes; the pulse width is in the range of 100 to 1000 nanoseconds; the repetition rate is in the range of 0.1 to 0.5 hz.
Preferably, the coaxial transmission line is divided into a positive transmission line and a negative transmission line, wherein:
the tail end of the positive electrode transmission line is connected with a positive electrode of the high-voltage electrode, and the positive electrode is hermetically arranged in the embedded hole; the tail end of the negative electrode transmission line is grounded or connected with a negative electrode of the high-voltage electrode, and the negative electrode is hermetically arranged in the pre-buried hole.
Preferably, the coaxial transmission line is a coaxial diode structure, a strip line structure or a multi-strand high-voltage coaxial cable structure.
Preferably, the high-voltage electrode is metal material, and the shape of high-voltage electrode includes one or more combination in spheroid, ellipsoid, cylinder, flat board, cone, the wedge, when the high-voltage electrode was the cylinder structure, the high-voltage electrode included the cylinder and set up at the terminal pointed end of cylinder, the outside of cylinder has evenly arranged the multiunit clitellum.
Preferably, the device further comprises a controller, wherein the controller is used for controlling the high-voltage pulse generator to work and detecting the working state of the high-voltage electrode.
Preferably, the blasting medium is one of water, transformer oil and esters.
Preferably, the high-voltage electrode sealing device further comprises a sealing member for mounting the high-voltage electrode, wherein the sealing member comprises a cover body, a wire holder arranged at the top of the cover body and an electrode holder arranged at the bottom of the cover body, and the sealing member comprises: the bottom of the cover body is provided with a sealing ring, and the cover body is connected with a crushed object through a plurality of fixing screws; the wire holder is used for connecting a coaxial transmission line; the electrode holder is used for mounting a high-voltage electrode.
The utility model provides an environment-friendly blasting device has following beneficial effect:
the utility model provides an environmental protection rubble device can show the not enough of remedy current rubble method, and this scheme is based on the new discovery of high-voltage pulse technique and stereoplasm solid-state thing or mixture aggregate inner structure, uses high-voltage pulse to be heated by the little air gap of broken thing inside rapidly, and after little air gap heating inflation, form countless local explosion and then develop into can conduct the fracture, and the device has remedied the not enough of current crushing technique, has only to consume the electric energy, repeatedly usable, and the cost-effectiveness ratio is high; explosive is not needed, and the method is safe and reliable; the operation is simple, and the maintenance requirement is low; the crushing speed is high, and the crushing is accurate and controllable; the method has the advantages of environmental friendliness, environmental protection and the like, and can be widely applied to the fields of aerospace, exploration, mining, directional blasting, particle manufacturing, environmental protection treatment and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic view of a first embodiment of the present invention;
fig. 3 is a schematic view of a second embodiment of the present invention;
FIG. 4 is a schematic view of the high voltage electrode structure of the present invention;
FIG. 5 is a schematic view of the sealing member of the present invention;
fig. 6 is a schematic view of the installation of the fixing screw according to the present invention.
In the figure, 1-high voltage pulse generator, 2-coaxial transmission line, 201-positive transmission line, 202-negative transmission line, 3-high voltage electrode, 301-positive electrode, 302-negative electrode, 303-cylinder, 304-tip, 305-ring belt, 4-controller, 5-object to be crushed, 501-pre-buried hole, 502-blasting medium, 6-sealing element, 601-cover body, 602-wire holder, 603-electrode holder, 604-sealing ring and 605-fixing screw.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention is further explained according to the attached drawings:
example one
As shown in fig. 1, the environment-friendly blasting device comprises a high-voltage pulse generator 1, a coaxial transmission line 2 and a high-voltage electrode 3, wherein: the high-voltage pulse generator 1 is used for generating kilovolt-level electric pulses; the coaxial transmission line 2 is used for effectively transmitting kilovolt-level electric pulses to the high-voltage electrode 3; the high voltage electrode 3 is used as an output member of an electric pulse and is in contact with the object to be crushed.
Specifically, the coaxial transmission line 2 may be a coaxial diode structure, a stripline structure, or a multi-strand high-voltage coaxial cable structure. The blasting media 502 may be one of water, transformer oil, and esters.
It should be noted that the high voltage pulse generator 1 includes one or more of TESLA pulse modulator, MARX generator, LTD inductive superimposer, and LC resonant high voltage generator. Specifically, the high-voltage pulse generator 1 may directly adopt the existing TESLA pulse modulator, MARX generator, LTD induction superimposer, artificial line or pulse forming network, or may use the above devices in series to boost the voltage in multiple stages.
It should be further noted that the input of the high voltage pulse generator may be 220V commercial power, or may be direct current, and the form is not limited.
Example two
In this embodiment, the operating parameters of the kilovolt-level electrical pulse include a voltage amplitude, a current amplitude, a pulse width, and a repetition frequency, where: the voltage amplitude ranges from 10 to 50 kilovolts; the range of the current amplitude is 0.2-1 kilo amperes; the pulse width is in the range of 100 to 1000 nanoseconds; the repetition rate is in the range of 0.1 to 0.5 hz.
Specifically, TESLA type pulse modulator can adopt current structure, also can adopt novel structure, and this novel TESLA type pulse modulator includes that laser triggers passageway, main switch, switch insulation support body, transformer primary, the secondary limit of transformer, pulse formation line urceolus, pulse formation line inner tube, transformer power supply end, inner tube supporter and packaging shell, wherein: the laser trigger channel is arranged at one end of the packaging shell and is used for butting the accurate trigger unit; the main switch is arranged in the packaging shell and positioned on one side close to the laser trigger channel, one end of the main switch is connected with the built-in transformer, the other end of the main switch is connected with a high-voltage large-current pulse output port, and the main switch is controlled by the accurate trigger unit to realize instantaneous discharge of the transformer; the switch insulating support is used for supporting the main switch and isolating the main switch from the pulse forming line; the primary side of the transformer is a multi-turn winding metal belt and is arranged at the middle side position inside the packaging shell; the secondary side of the transformer is of a cone-shaped structure formed by closely winding thin metal wires and is arranged inside the primary side of the transformer; the pulse forming line outer cylinder is a metal cylinder, the outer wall of the metal cylinder is connected with the secondary side of the transformer, one end of the metal cylinder is connected with an electrode of the main switch, and the other end of the metal cylinder is provided with an opening; the pulse forming line inner cylinder is of a cylindrical or columnar structure and is coaxially arranged inside the pulse forming line outer cylinder through an inner cylinder support body; one end of the power supply end of the transformer is connected with an external power supply, the other end of the power supply end of the transformer is connected with the transformer, and the transformer is a coaxial conical TESLA transformer with a built-in pulse forming line.
It should be further noted that when the pulse high voltage modulator may also be a combination of a TESLA type pulse modulator and a MARX type high voltage generator, the combination forms a transfer relationship, and the MARX generator is used as a first stage to perform boosting operation and transfer the boosted voltage to the TESLA modulator of a second stage for shaping.
EXAMPLE III
As shown in fig. 1, the present embodiment further includes a controller 4, and the controller 4 is used for controlling the operation of the high voltage pulse generator 1 and detecting the operating state of the high voltage electrode 3. It should be noted that the controller 4 is configured to complete functions such as timing triggering, state monitoring, energy supply, logic management, emergency management, fault detection, remote control, and human-computer interaction.
Specifically, the high voltage pulse generator 1 is monitored by the controller 4 in real time to complete initial charging and discharging, main loop conduction and electric pulse generation. The controller 4 is composed of an integrated circuit including: the system comprises main modules of FPGA operation, RAM storage, D/A acquisition, A/D acquisition and the like, and the functions of time sequence triggering, state monitoring, energy supplement, logic management, emergency management, fault detection, remote control, man-machine interaction and the like are completed.
Example four
As shown in fig. 2, the present embodiment adopts the technical scheme of integral blasting, which is specifically as follows:
A1) a pre-buried hole 501 is arranged at the central position of the object 5 to be crushed;
A2) arranging a positive electrode 301 of a high-voltage electrode 3 in a pre-buried hole 501, filling a blasting medium 502 in the pre-buried hole 501, and sealing the high-voltage electrode 3, the pre-buried hole 501 and the blasting medium 502 through a sealing member 6;
it should be noted that the coaxial transmission line 2 is divided into a positive transmission line 201 and a negative transmission line 202, where: the tail end of the positive transmission line 201 is connected with a positive electrode 301 of the high-voltage electrode 3, and the positive electrode 301 is hermetically arranged in the pre-buried hole 501; the end of the negative transmission line 202 is grounded.
A3) And (3) driving a high-voltage pulse generator to discharge by using a controller, and integrally blasting the crushed object 5, wherein the range of voltage amplitude is 10-50 ten thousand volts, the range of current amplitude is 0.2-1 ten thousand amperes, the range of pulse width is 100-1000 nanoseconds, and the range of repetition frequency is 0.1-0.5 Hz in the discharging process.
It should be noted that the preferred value of the voltage amplitude during discharge is 20 kilovolts, the preferred value of the current amplitude is 0.8 kiloamps, the preferred value of the pulse width is 500 nanoseconds, and the preferred value of the repetition frequency is 0.4 hertz. When the properties and sizes of the objects to be crushed are different, the optimal parameters are further searched, and the crushing operation is performed once or repeatedly.
It needs to be further explained that the high voltage electrode must be effectively fixed with the broken object, and the high voltage electrode and the medium are sealed in the pre-buried hole to prevent falling off.
EXAMPLE five
As shown in fig. 3, the present embodiment adopts a technical scheme of local blasting, which specifically includes:
B1) a plurality of pre-buried holes 501 are arranged at the edge of the to-be-blasted area of the object 5 to be blasted;
it should be noted that a plurality of positive electrode buried holes may be provided, or a single positive electrode buried hole may be provided. The number of the cathode pre-buried holes is multiple, and the anode pre-buried holes and the cathode pre-buried holes are arranged at the edge of the area to be blasted.
B2) Arranging a positive electrode 301 of a high-voltage electrode 3 in a pre-buried hole 501 at one side, arranging a negative electrode 302 of the high-voltage electrode 3 in a pre-buried hole 501 at the other side, filling a blasting medium 502 in the pre-buried hole 501, and sealing the high-voltage electrode 3, the pre-buried hole 501 and the blasting medium 502 through a sealing member 6;
B3) the controller is used for driving the high-voltage pulse generator to discharge, and local blasting is carried out on the crushed object 5, the range of voltage amplitude in the discharging process is 10-50 ten thousand volts, the range of current amplitude is 0.2-1 ten thousand amperes, the range of pulse width is 100-1000 nanoseconds, and the range of repetition frequency is 0.1-0.5 hertz.
It should be noted that, during the discharging process, the voltage amplitude is preferably 30 ten thousand volts, the current amplitude is preferably 1 ten thousand amperes, the pulse width is preferably 800 nanoseconds, and the repetition frequency is preferably 0.5 hertz, and when the properties and the size of the object to be crushed are different, the optimum parameters should be further searched for, and the crushing operation should be performed once or repeatedly.
It needs to be further explained that the high voltage electrode must be effectively fixed with the broken object, and the high voltage electrode and the medium are sealed in the pre-buried hole to prevent falling off.
EXAMPLE six
In this embodiment, the high voltage electrode 3 is made of a metal material, the shape of the high voltage electrode 3 includes one or more combinations of a sphere, an ellipsoid, a cylinder, a flat plate, a cone and a wedge, the high voltage electrode generally includes a positive electrode and a negative electrode, and the number of each electrode may be one or more.
When the high voltage electrode 3 is a cylindrical structure, as shown in fig. 4, the high voltage electrode 3 includes a cylinder 303 and a tip 304 disposed at the end of the cylinder 303, and a plurality of groups of annular bands 305 are uniformly disposed on the outer side of the cylinder 303, as shown in fig. 4. When the high voltage electrode 3 is cylindrical, a plurality of strands of copper wires may be twisted.
EXAMPLE seven
The high voltage electrode is inserted into the pre-buried hole and may be fixed by its own shape or by an additional seal 6. The sealing element 6 may be in a suction cup structure or a sealing cover structure, the suction cup structure may be a rubber suction cup or a plastic suction cup, and the sealing cover structure is shown in fig. 5 and 6, and specifically includes a cover 601, a wire holder 602 disposed on the top of the cover 601, and an electrode holder 603 disposed on the bottom of the cover 601, where: a sealing ring 604 is arranged at the bottom of the cover body 601, the sealing ring 604 can be a rubber sealing ring, and the cover body 601 is connected with the object to be crushed 5 through a plurality of fixing screws 605; the wire holder 602 is used for connecting the coaxial transmission line 2; the electrode holder 603 is used for mounting the high voltage electrode 3.
It should be noted that the fixing screw 605 may be a common screw or an expansion screw, or may be replaced by a screw or a steel nail.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. The utility model provides an environment-friendly blasting device, its characterized in that includes high voltage pulse generator (1), coaxial transmission line (2) and high voltage electrode (3), wherein:
the high-voltage pulse generator (1) is used for generating kilovolt-level electric pulses;
the coaxial transmission line (2) is used for effectively transmitting kilovolt-level electric pulses to the high-voltage electrode (3);
the high-voltage electrode (3) is used as an output component of electric pulse and is hermetically arranged in a pre-buried hole (501) of a crushed object (5), and the pre-buried hole (501) is filled with a blasting medium (502).
2. An environment-friendly blasting apparatus as defined in claim 1,
the high-voltage pulse generator (1) comprises one or a combination of a TESLA pulse modulator, a MARX generator, an LTD induction superimposer and an LC resonance high-voltage generator;
the working parameters of the kilovolt-level electric pulse in the high-voltage pulse generator (1) comprise voltage amplitude, current amplitude, pulse width and repetition frequency, wherein: the voltage amplitude ranges from 10 to 50 kilovolts; the range of the current amplitude is 0.2-1 kilo amperes; the pulse width is in the range of 100 to 1000 nanoseconds; the repetition rate is in the range of 0.1 to 0.5 hz.
3. The environment-friendly blasting apparatus according to claim 1, wherein the coaxial transmission line (2) is divided into a positive transmission line (201) and a negative transmission line (202), wherein:
the tail end of the positive electrode transmission line (201) is connected with a positive electrode (301) of the high-voltage electrode (3), and the positive electrode (301) is hermetically arranged in the pre-buried hole (501);
the tail end of the negative electrode transmission line (202) is grounded or connected with a negative electrode (302) of the high-voltage electrode (3), and the negative electrode (302) is hermetically arranged in the pre-buried hole (501).
4. An environment friendly blasting apparatus as defined in claim 3, wherein the coaxial transmission line (2) is of a coaxial diode structure, a stripline structure or a multi-strand high voltage coaxial cable structure.
5. The environment-friendly blasting device according to claim 1, wherein the high voltage electrode (3) is made of a metal material, the shape of the high voltage electrode (3) comprises one or more combinations of a sphere, an ellipsoid, a cylinder, a flat plate, a cone and a wedge, when the high voltage electrode (3) is in a cylinder structure, the high voltage electrode (3) comprises a cylinder (303) and a tip (304) arranged at the end of the cylinder (303), and a plurality of groups of annular bands (305) are uniformly arranged on the outer side of the cylinder (303).
6. An environment friendly blasting apparatus as defined in claim 1, further comprising a controller (4), said controller (4) being adapted to control the operation of the high voltage pulse generator (1) and to detect the operating condition of the high voltage electrode (3).
7. An environment friendly blasting apparatus as defined in claim 1, wherein said blasting medium (502) is one of water, transformer oil and esters.
8. The environment-friendly blasting apparatus according to claim 1, further comprising a sealing member (6) for mounting the high voltage electrode (3), wherein the sealing member (6) comprises a cover body (601), a wire holder (602) disposed at the top of the cover body (601), and an electrode holder (603) disposed at the bottom of the cover body (601), wherein:
a sealing ring (604) is arranged at the bottom of the cover body (601), and the cover body (601) is connected with a crushed object (5) through a plurality of fixing screws (605);
the wire holder (602) is used for connecting a coaxial transmission line (2);
the electrode seat (603) is used for installing a high-voltage electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022238089.9U CN213726983U (en) | 2020-10-10 | 2020-10-10 | Environment-friendly blasting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022238089.9U CN213726983U (en) | 2020-10-10 | 2020-10-10 | Environment-friendly blasting device |
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| CN213726983U true CN213726983U (en) | 2021-07-20 |
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