CN111910952A - Environment-friendly concrete structure crushing device and crushing method adopting high-voltage pulse technology - Google Patents
Environment-friendly concrete structure crushing device and crushing method adopting high-voltage pulse technology Download PDFInfo
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- CN111910952A CN111910952A CN202010531112.5A CN202010531112A CN111910952A CN 111910952 A CN111910952 A CN 111910952A CN 202010531112 A CN202010531112 A CN 202010531112A CN 111910952 A CN111910952 A CN 111910952A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
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Abstract
The invention provides an environment-friendly concrete structure crushing device adopting a high-voltage pulse technology and a crushing method. The concrete structure crushing device and the crushing method have the advantages of being convenient to operate, energy-saving, efficient, environment-friendly, short in required time, good in crushing effect, small in energy consumption and the like, and reducing pollution to the environment.
Description
Technical Field
The invention relates to an electric crushing device and a crushing method for a concrete structure, in particular to an environment-friendly concrete structure crushing device and a crushing method adopting a high-voltage pulse technology, and belongs to the technical field of concrete structure dismantling methods.
Background
With the progress of urbanization of economic development being accelerated, new buildings and demolished buildings are continuously increased every year, and the buildings which are repainted for a long time are also confronted with demolition and reconstruction, so that the demand of engineering demolition is increased. The traditional demolition method at present has the defects of much dust, large noise, high potential safety hazard, low demolition speed, great damage to recyclable demolition materials, high energy consumption, no contribution to construction operation at intensive building groups and the like.
In addition, as the occurrence of the hydro-electric effect requires a large amount of capacitors to store low-energy power supplies so as to instantly release high voltage, large current and high energy, the existing high-voltage pulse discharge equipment generally has the defects of large volume (the side length is about 2 meters generally), inconvenience in carrying and the like, and the high-voltage pulse discharge crushing technology at home and abroad belongs to the research stage, and the high-voltage pulse generator does not form industrial production.
Disclosure of Invention
The invention provides a concrete structure crushing device and a crushing method which are convenient to operate, energy-saving, efficient, environment-friendly and solve the problems that the traditional dismantling method mentioned in the background art has the defects of high dust, high noise, high potential safety hazard, low dismantling speed, large damage to recyclable dismantling materials, high energy consumption and large volume and is not beneficial to carrying in intensive building groups, and the existing high-voltage pulse discharge equipment is large in size and not beneficial to carrying.
The invention provides an environment-friendly concrete structure crushing device adopting a high-voltage pulse technology and a crushing method, and the environment-friendly concrete structure crushing device comprises a supercharging device 1, a storage device 2, a discharging device 3, a plurality of electric wires and electrolyte 7; supercharging device 1, storage device 2 and discharge device 3 connect gradually through the electric wire, electrolyte 7 dress is in concrete 5 if dry concrete drilling 6, discharge device 3 inserts in concrete drilling 6's electrolyte 7.
Preferably, the wire is a high voltage insulated wire 4.
Preferably, the boosting device 1 comprises a diode 8, a charging resistor 9 and a boosting coil 11, wherein one end of the boosting coil 11 of the boosting device 1 is connected with a power supply, and the other end is sequentially connected with the diode 8 and the charging resistor 9.
Preferably, the booster coil 11 is capable of boosting a voltage of 1kV up to 20 kV.
Preferably, the storage means 2 comprises control means 12 and capacitive means 13, said control means 12 being connected to said capacitive means 13.
Preferably, the control device 12 is a three-electrode ball gap switch.
Preferably, the discharge device 3 is a discharge electrode 14.
Preferably, the environment-friendly concrete structure crushing device adopting the high-voltage pulse technology has the release peak voltage of 20kV, the peak current of 30kA and the one-time release energy of 50 kJ.
The environment-friendly concrete structure crushing device and the crushing method adopting the high-voltage pulse technology have the beneficial effects that:
1. the environment-friendly concrete structure crushing device and crushing method adopting the high-voltage pulse technology are different from the traditional crushing technologies such as machinery, blasting and the like, the high-voltage pulse technology is low in noise, less in dust emission and high in safety, and the device and method are more suitable for the dismantling work of intensive building groups than other methods.
2. According to the environment-friendly concrete structure crushing device and crushing method adopting the high-voltage pulse technology, an operator can complete discharge crushing only by controlling the switch in the high-voltage pulse crushing process, so that the operation difficulty is reduced.
3. Compared with other environment-friendly crushing devices and crushing methods such as static crushing, electric heating and the like, the environment-friendly concrete structure crushing device and crushing method adopting the high-voltage pulse technology have the advantages of short required time, good crushing effect, low energy consumption and the like, and reduce the pollution to the environment.
4. The environment-friendly concrete structure crushing device and the crushing method adopting the high-voltage pulse technology adopt the high-voltage pulse technology, and have the advantages of environmental protection, easy operation, energy conservation, high efficiency and the like.
5. The environment-friendly concrete structure crushing device adopting the high-voltage pulse technology is a detachable high-voltage pulse mode device, can be disassembled in groups before transportation and assembled on a construction site, and solves the problem that large-size equipment is inconvenient to transport.
6. The environment-friendly concrete structure crushing device adopting the high-voltage pulse technology can release peak voltage of 20kV, peak current of 30kA and once-release energy of 50kJ, and meets the occurrence condition of instantaneous high-voltage breakdown crushing of a liquid-electric effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of an environment-friendly concrete structure breaking device using high-voltage pulse technology according to the present invention;
FIG. 2 is an electrical control diagram of the environmentally friendly concrete structure breaking apparatus using high voltage pulse technology according to the present invention;
FIG. 3 is a first schematic view of concrete drilling straight hole arrangement, wherein the concrete has the size of 800mm × 400mm, the hole edge distance is 200mm, and the hole distance is 50 mm;
FIG. 4 is a schematic diagram of a concrete drilling line hole arrangement, wherein the concrete has the size of 900mm × 500mm, the hole edge distance is 250mm, and the hole distance is 50 mm;
FIG. 5 is a schematic view of concrete hole drilling linear hole arrangement, wherein the concrete has the size of 1000mm × 600mm, the hole edge distance is 300mm, and the hole distance is 50 mm;
FIG. 6 is a schematic diagram of concrete drilling with broken line hole layout, wherein the concrete dimensions are 1000mm by 800mm, and wherein the hole spacing is 250 mm;
FIG. 7 is a schematic diagram of a concrete drilling double row hole arrangement, wherein the number of drilling holes is 4, the size of the concrete is 900mm x 900mm, and the hole edge distance is 250 mm;
FIG. 8 is a schematic diagram of concrete drilling holes with a double row hole arrangement, wherein the number of the drilling holes is 6, the size of the concrete is 1300mm multiplied by 900mm, and the hole edge distance is 250 mm;
FIG. 9 is a schematic diagram of concrete drilling hole arrangement in double rows with 8 drilling holes, wherein the concrete dimension is 1700mm × 900mm, and the hole margin is 250 mm;
in the figure: 1-a supercharging device; 2-a storage device; 3-a discharge device; 4-high voltage insulated wire; 5-concrete; 6-drilling concrete; 7-electrolyte; 8-a diode; 9-a charging resistor; 10-a power supply; 11-a booster coil; 12-a control device; 13-a capacitive device; 14-discharge electrode.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1. The environment-friendly concrete structure crushing device adopting the high-voltage pulse technology comprises a pressurizing device 1, a storage device 2, a discharging device 3, a plurality of wires and electrolyte 7; supercharging device 1, storage device 2 and discharge device 3 connect gradually through the electric wire, electrolyte 7 dress is in concrete 5 if dry concrete drilling 6, discharge device 3 inserts in concrete drilling 6's electrolyte 7.
The wire is a high voltage insulated wire 4. The discharge device 3 is a discharge electrode 14.
Supercharging device 1 includes diode 8, charging resistor 9 and pressure boost coil 11, supercharging device 1's pressure boost coil 11's one end is connected with the power, and one end connects gradually with diode 8 and charging resistor 9.
The booster coil 11 is capable of boosting a voltage of 1kV up to 20 kV.
The storage device 2 comprises a control device 12 and a capacitance device 13, wherein the control device 12 is connected with the capacitance device 13.
If the drilling number of the dry concrete drilling holes 6 is 2, 3, 4, 6 or 8, the arrangement mode can be linearly arranged and folded according to the concrete 5 sizeIn a double row or row arrangement, as shown in figures 3-9, wherein the pitch of the holes is
50mm or 70 mm. When the discharge blasting is carried out, if the dry concrete drill hole 6 is communicated for blasting, the crushing of the concrete block is facilitated.
The working principle of the environment-friendly concrete structure crushing device and the crushing method adopting the high-voltage pulse technology is as follows:
the energy storage device is utilized to convert low-grade energy into high-grade energy to enable the conductive liquid to form a plasma channel, and the concrete member is broken due to the action of shock waves and air bubbles, so that the dismantling effect is achieved.
Firstly, drilling a hole in the concrete 5, putting electrolyte into the hole, putting the discharge electrode 14 in the electrolyte, and under the action of instantaneous high voltage, electrons in the liquid collide with molecules to generate quanta (or photons) so as to continue to collide with the molecules to form electron avalanche. During discharging, the electrolyte is instantaneously heated and converted into plasma for instantaneous expansion, and the shock wave emitted in the form of ultrasonic wave is released in the space with limited aperture to generate shock pressure on the rock so as to form blasting.
(1) Description of high-voltage pulse discharge apparatus:
because the generation of the liquid electricity effect needs a large amount of capacitors to store low-energy power supplies so as to instantly release high voltage, large current and high energy, the existing high-voltage pulse discharge equipment generally has the defects of large volume (the side length is about 2 meters generally), inconvenience in carrying and the like, and the high-voltage pulse discharge crushing technology at home and abroad belongs to the research stage, and the high-voltage pulse generator does not form industrial production. In order to facilitate engineering application, the invention provides a detachable high-voltage pulse mode device. The device can be disassembled in groups and assembled on a construction site before transportation, and the transportation problem of large-volume equipment is solved. The schematic diagram of the high-voltage pulse discharge device is shown in fig. 2, wherein a first grouping device is a supercharging device 1, a second grouping device is an energy storage device 2, and a third grouping device is a discharge device 3, the peak voltage of the test equipment can be released to 20kV, the peak current of the test equipment can be released to 30kA, and the once-released energy of the test equipment is 50kJ, so that the generation condition of the liquid-electric effect can be met.
(2) The test scheme of the high-voltage pulse discharge concrete member breaking method comprises the following steps:
in the project, discharge crushing research in high-voltage pulse liquid is carried out by taking concrete beams, plates and column members as research objects, and the crushing scheme is shown in figure 1. Drilling a hole on the concrete 5 in advance, injecting the electrolyte 7, placing the discharge electrode 14 in the electrolyte and plugging the end head to avoid the electrolyte from expanding and overflowing after forming plasma.
After the device is connected with the common 220V low-power voltage, high voltage is formed through the supercharging device 1, alternating current is converted into direct current through the diode of the rectifying device, direct current high voltage is formed, charging protection is carried out through the charging resistor 9, and the rectifying device is prevented from being broken down due to overlarge current. The capacitor device 13 is composed of a plurality of capacitors connected in series and in parallel, stores low power voltage, and breaks down the control device 12, i.e. the three-electrode ball gap switch, when the rated high voltage value is reached, the discharge loop is conducted accordingly. The large electrical energy stored in the capacitor means 13 is instantaneously discharged at the discharge electrode 14 in the conductive liquid.
After the high-voltage pulse device releases high-voltage strong current, the electrolyte 7 between the electrodes is broken down to form a liquid-electricity effect, and impact load is generated on the side wall of the concrete hole. When the concrete reaches the tensile strength, the concrete cracks, and when the cracks extend from the concrete holes to the outer edge of the concrete and the cracks between the two holes are communicated, the concrete member reaches the breaking effect.
The invention relates to an environment-friendly concrete structure crushing method adopting a high-voltage pulse technology, which specifically comprises the following steps:
firstly, drilling a plurality of holes on the concrete member to be crushed, putting an electrolyte 7 after drilling, inserting a discharge electrode 14, then switching on a power supply, boosting by a boosting device 1 after a common power supply is switched on, converting alternating current into direct current, storing the voltage of the direct current in a storage device 2, and puncturing a control device 12 after a capacitor device 13 in the storage device 2 reaches a certain voltage to form a passage between the discharge electrodes 14;
then the electrolyte 7 in the middle of the discharge electrode 14 is broken down to form a passage, the electrolyte 7 forms plasma and rapidly expands to the periphery, impact pressure is formed on the side wall in the closed space of the concrete drill 6, and then the concrete 5 is cracked.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An environment-friendly concrete structure crushing device adopting a high-voltage pulse technology is characterized by comprising a supercharging device (1), a storage device (2), a discharging device (3), a plurality of electric wires and electrolyte (7);
supercharging device (1), storage device (2) and discharge device (3) connect gradually through the electric wire, electrolyte (7) dress is in concrete drilling (6) of concrete (5), discharge device (3) insert in electrolyte (7) of a plurality of dry concrete drilling (6).
2. The environmentally friendly concrete structure breaking device adopting high voltage pulse technology according to claim 1, wherein the wire is a high voltage insulated wire (4).
3. The environment-friendly concrete structure breaking device adopting high voltage pulse technology as claimed in claim 1, wherein the pressure boosting device (1) comprises a diode (8), a charging resistor (9) and a pressure boosting coil (11), one end of the pressure boosting coil (11) of the pressure boosting device (1) is connected with a power supply, and the other end is connected with the diode (8) and the charging resistor (9) in sequence.
4. The environmentally friendly concrete structure breaking device using high voltage pulse technology according to claim 3, wherein the boosting coil (11) can boost a voltage of 1kV to 20 kV.
5. The environmentally friendly concrete structure breaking device using high voltage pulse technology according to claim 1, wherein the storage device (2) comprises a control device (12) and a capacitance device (13), and the control device (12) is connected with the capacitance device (13).
6. The environmentally friendly concrete structure breaking device adopting high voltage pulse technology according to claim 5, wherein the control device (12) is a three-electrode ball gap switch.
7. The environment-friendly concrete structure breaking device adopting high voltage pulse technology according to claim 1, wherein the discharge device (3) is a discharge electrode (14).
8. The eco-friendly concrete structure breaking device using high voltage pulse technology according to claim 1, wherein the eco-friendly concrete structure breaking device using high voltage pulse technology has a peak discharge voltage of 20kV, a peak current of 30kA, and a primary discharge energy of 50 kJ.
9. The crushing method of the environment-friendly concrete structure crushing device adopting the high-voltage pulse technology according to any one of claims 1 to 8, which is characterized by comprising the following steps:
firstly, drilling a plurality of holes on the concrete member to be crushed, putting an electrolyte (7) after drilling, inserting a discharge electrode (14), then switching on a power supply, boosting by a boosting device (1) after a common power supply is switched on, converting alternating current into direct current, storing the voltage of the direct current power supply in a storage device (2), and puncturing a control device (12) after a capacitor device (13) in the storage device (2) reaches a certain voltage to form a passage between the discharge electrodes (14);
then the electrolyte (7) in the middle of the discharge electrode (14) is broken down to form a passage, the electrolyte (7) forms plasma and rapidly expands to the periphery, impact pressure is formed on the side wall in the closed space of the concrete drill hole (6), and then the concrete (5) is cracked.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1461239A (en) * | 2001-04-06 | 2003-12-10 | 住友电气工业株式会社 | Curshing apparatus electrode and crushing apparatus |
| CN103753701A (en) * | 2013-12-30 | 2014-04-30 | 华中科技大学 | Pulse discharge concrete recovery system |
| CN105043706A (en) * | 2015-07-14 | 2015-11-11 | 中国石油大学(北京) | Electric-explosion plasma petroleum yield-increase testing device |
| CN105444631A (en) * | 2016-01-06 | 2016-03-30 | 中国矿业大学 | Liquid-phase plasma rock blasting method |
| CN108955433A (en) * | 2018-07-06 | 2018-12-07 | 哈尔滨理工大学 | Fuse explosion breaking concrete system and breaking method |
-
2020
- 2020-06-11 CN CN202010531112.5A patent/CN111910952A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1461239A (en) * | 2001-04-06 | 2003-12-10 | 住友电气工业株式会社 | Curshing apparatus electrode and crushing apparatus |
| CN103753701A (en) * | 2013-12-30 | 2014-04-30 | 华中科技大学 | Pulse discharge concrete recovery system |
| CN105043706A (en) * | 2015-07-14 | 2015-11-11 | 中国石油大学(北京) | Electric-explosion plasma petroleum yield-increase testing device |
| CN105444631A (en) * | 2016-01-06 | 2016-03-30 | 中国矿业大学 | Liquid-phase plasma rock blasting method |
| CN108955433A (en) * | 2018-07-06 | 2018-12-07 | 哈尔滨理工大学 | Fuse explosion breaking concrete system and breaking method |
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Application publication date: 20201110 |