Electrolyte circulation system and circulation method for high-voltage arc rock breaking

Abstract

The present invention relates to the technical field of pile drivers, and discloses an electrolyte circulation system and circulation method for high-voltage electric arc rock breaking, comprising a mud pool; an electrolyte pool connected to the mud pool; a pulse generator arranged in an underground pile hole, the pulse generator having a hollow cavity internally constructed, the electrolyte pool being connected to the hollow cavity through a first pipeline, and being used to inject an electrolyte solution into the hollow cavity; an arc drill bit arranged in the underground pile hole and connected to the lower end of the pulse generator; and a submersible pump arranged in the hollow cavity, the submersible pump having an inlet and an outlet, the outlet of the submersible pump being connected to the mud pool through a second pipeline, wherein the pulse generator releases electric energy and transmits the electric energy to the arc drill bit, so that the arc drill bit breaks the surrounding rocks into crushed stones, and the submersible pump sequentially transports the electrolyte solution mixed with crushed rocks back to the mud pool through the inlet of the submersible pump and the second pipeline. The electrolyte circulation system has the advantage of high drilling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pile drivers, and in particular to an electrolyte circulation system and a circulation method for high-voltage electric arc rock breaking. Background Art

[0002] At present, traditional piling is done by mechanical rock breaking or manual drilling, usually using rotary drilling rigs, electro-hydraulic pile drivers, impact vibration hammers, etc. In soft and medium-hard rock formations, rotary drill bits with carbide cutting tools are used for drilling; in medium-hard and above rock formations, milling tooth roller bits are used for drilling; in hard rock formations, diamond drill bits or steel grain drill bits are used for drilling; in hard and brittle rock formations, hydraulic (pneumatic) in-hole impactor drills or toothed drills are used for drilling.

[0003] The structure of existing pile driving machinery and equipment is relatively complex. Different drill bits or other mechanical structures are required for different rock formations. During the drilling process, the drill needs to be continuously lifted, slag unloaded, and drilled. Drilling is time-consuming, work efficiency is low, and time and labor costs are high. When mechanical drilling tools are used to process harder rock formations such as granite, they take a lot of time to drill. Mechanical drilling tools are prone to wear and tear and need to be replaced frequently, which is costly.

[0004] In the existing electrolyte circulation system, the circulation pump is often arranged outside the pile hole. As the depth of the pile hole increases, due to the negative pressure limitation of the pump, the broken rocks at the bottom of the pile hole cannot be quickly and effectively discharged out of the hole with the electrolyte circulation system, which affects the drilling efficiency and increases energy consumption. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the circulation pump in the prior art is often arranged outside the pile hole. As the depth of the pile hole increases, due to the negative pressure limitation of the pump, the broken rock at the bottom of the pile hole cannot be quickly and effectively discharged out of the hole along with the electrolyte circulation, which affects the drilling efficiency and increases energy consumption, thereby providing an electrolyte circulation system and circulation method for high-voltage arc rock breaking.

[0006] According to a first aspect of the present application, there is provided an electrolyte circulation system for high-voltage electric arc rock breaking, comprising: a mud pool; an electrolyte pool connected to the mud pool; a pulse generator arranged in an underground pile hole, the interior of the pulse generator being configured with a hollow cavity, the electrolyte pool being connected to the hollow cavity via a first pipeline, and being used to inject an electrolyte solution into the hollow cavity; an arc drill bit arranged in the underground pile hole and connected to the lower end of the pulse generator; and a submersible pump arranged in the hollow cavity, the submersible pump being configured with an inlet and an outlet, the outlet of the submersible pump being connected to the mud pool via a second pipeline, wherein the pulse generator releases electrical energy and transmits the electrical energy to the arc drill bit, so that the arc drill bit breaks the surrounding rocks into gravel, and the submersible pump transports the electrolyte solution mixed with the crushed rocks back to the mud pool via the inlet of the submersible pump and the second pipeline in sequence.

[0007] The submersible pump is arranged in the hollow cavity and close to the end of the electric arc drill. Compared with arranging the pump outside the hole, the arrangement of the present application can quickly and effectively discharge the broken rock at the bottom of the hole, greatly improving the drilling efficiency of the electric arc drill.

[0008] The electrolyte circulation system further comprises a submersible pump seat, which is arranged in the hollow cavity and close to the end of the arc drill bit, and is fixed on the inner wall of the hollow cavity, and the submersible pump is installed on the submersible pump seat. By adding the submersible pump seat, the submersible pump can be effectively installed and fixed, and the submersible pump can be prevented from tilting during operation.

[0009] The pulse generator includes a tube body arranged in an underground pile hole, the hollow cavity is constructed inside the tube body, the first end of the first pipeline is connected to the electrolyte pool, and the second end of the first pipeline extends to the bottom position of the hollow cavity. By extending the second end of the first pipeline to the bottom position of the hollow cavity, it is not necessary to occupy the space of the underground pile hole separately, avoiding the position interference between the first pipeline and the pulse generator or affecting the placement or removal of the pulse generator.

[0010] Wherein, the electrolyte circulation system further includes a power module; the pulse generator further includes an energy storage capacitor arranged in the hollow cavity, and the energy storage capacitor is electrically connected to the power module.

[0011] The energy storage capacitor has a through hole inside, and the first pipeline passes through the through hole. In this way, the energy storage volume of the energy storage capacitor can be increased within the effective space, so that it can continuously provide electrical energy for the electric arc drill.

[0012] Wherein, the pulse generator further comprises a spark switch arranged between the energy storage capacitor and the arc drill bit, and the spark switch is electrically connected to the energy storage capacitor and the arc drill bit respectively.

[0013] Wherein, the arc drill bit is detachably arranged at the lower end of the tube body.

[0014] The electrolyte circulation system further includes a filter component, which is arranged at the position where the mud pool and the electrolyte pool are connected. By adding the filter component at the position where the mud pool and the electrolyte pool are connected, the crushed stones can be filtered, so that the electrolyte solution mixed with the crushed stones can be transported back to the electrolyte pool after being filtered by the filter component for the next circulation.

[0015] According to the second aspect of the present application, there is also provided an electrolyte circulation method for high-voltage electric arc rock breaking, comprising: conveying an electrolyte solution to the bottom of an underground pile hole; charging the energy storage capacitor in the pulse generator to reach a preset capacitance value, triggering a spark switch in the pulse generator, and transferring the electrical energy in the energy storage capacitor to the arc drill bit, so as to cause the arc drill bit to crush the surrounding rocks; conveying the electrolyte solution mixed with crushed rocks to the mud pool for sedimentation and filtration, so as to be conveyed to the electrolyte pool for the next circulation.

[0016] Compared with the prior art, the electrolyte circulation system for high-voltage arc rock breaking provided by the present invention has the following advantages:

[0017] Compared with the prior art, the electrolyte circulation system of the high-voltage electric arc rock breaking of the present application sets the pump on the ground. The present application sets the submersible pump in the underground pile hole, which can effectively avoid the negative pressure limitation of the submersible pump and ensure the suction of the submersible pump, so as to quickly and effectively clean the broken rock at the bottom of the underground pile hole, ensure the drilling speed, and greatly improve the drilling efficiency of the arc drill bit. The electrolyte circulation system of the present application can immediately discharge the broken rock out of the hole with the electrolyte solution circulation, and does not need to lift the drill, unload the slag and drill down like the traditional mechanical drilling rig, which greatly improves the drilling rate, reduces energy consumption and reduces the cost of drilling. In addition, the submersible pump of the present application is installed in the hollow cavity of the pulse generator, and the submersible pump is not associated with the arc drill bit. In this way, when drilling underground pile holes of different apertures, it is only necessary to replace the drill bit of the corresponding size, which does not affect the structure of the entire electrolyte circulation system. The entire electrolyte circulation system can remain unified and unchanged, thereby greatly reducing the cumbersomeness of operation. In addition, the present application utilizes an arc drill bit to first crush the surrounding rocks and then perform drilling and grinding, which has the characteristics of high crushing efficiency, fast drilling speed, small equipment wear, low failure rate, safety and environmental protection, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the positive cycle of the electrolyte circulation system of the high-voltage arc rock breaking according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the negative circulation of the electrolyte circulation system of the high-voltage arc rock breaking according to an embodiment of the present invention;

[0021] Figure 3 for Figure 1 A schematic diagram of the connection structure of the first pipeline, the pulse generator and the arc drill bit;

[0022] Figure 4 The figure is a schematic flow chart of the steps of the electrolyte circulation method for high-voltage arc rock breaking according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1: mud pool; 2: electrolyte pool; 3: pulse generator; 31: tube body; 311: hollow cavity; 32: energy storage capacitor; 321: through hole; 322: power interface; 200: underground pile hole; 4: first pipeline; 5: arc drill; 6: submersible pump; 7: second pipeline; 8: power module; 9: spark switch; 10: filter component. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1 to 3 As shown, the figure schematically shows that the electrolyte circulation system of the high-voltage electric arc rock breaking includes a mud pool 1, an electrolyte pool 2, a pulse generator 3, a first pipeline 4, an arc drill bit 5, a submersible pump 6 and a second pipeline 7. It should be noted that the so-called "high voltage" refers to a voltage between 40KV (kilovolts) and 500KV (kilovolts).

[0030] In the embodiment of the present application, the electrolyte pool 2 is connected to the mud pool 1 .

[0031] The pulse generator 3 is disposed in the underground pile hole 200 . A hollow cavity 311 is configured inside the pulse generator 3 . The electrolyte pool 2 is connected to the hollow cavity 311 through a first pipeline 4 for injecting an electrolyte solution into the hollow cavity 311 .

[0032] The arc drill bit 5 is disposed in the underground pile hole 200 and connected to the lower end of the pulse generator 3 .

[0033] The submersible pump 6 is arranged in the hollow cavity 311. The submersible pump 6 is configured with an inlet (not shown in the figure) and an outlet (not shown in the figure). The outlet of the submersible pump 6 is connected to the mud pool 1 through the second pipeline 7. The pulse generator 3 releases electric energy and transmits the electric energy to the electric arc drill 5, so that the electric arc drill 5 breaks the surrounding rocks into gravel. The submersible pump 6 sequentially transports the electrolyte solution mixed with the crushed rocks back to the mud pool 1 through the inlet of the submersible pump 6 and the second pipeline 7. Specifically, the electrolyte solution in the electrolyte pool 2 is first injected into the bottom of the underground pile hole 200, and then the pulse generator 3 is used to release electric energy and transmit the electric energy to the electric arc drill 5, so that the electric arc drill 5 breaks the surrounding rocks into gravel. The submersible pump 6 sequentially transports the electrolyte solution mixed with the crushed rocks back to the mud pool 1 through the inlet of the submersible pump 6 and the second pipeline 7. It can be seen that compared with the prior art in which a pump (not shown in the figure) is set on the ground, the electrolyte circulation system of the high-voltage electric arc rock breaking of the present application sets the submersible pump 6 in the underground pile hole 200, which can effectively avoid the negative pressure limitation of the submersible pump 6 and ensure the suction of the submersible pump 6, so as to quickly and effectively clean the broken rock at the bottom of the underground pile hole 200, ensure the drilling speed, and greatly improve the drilling efficiency of the arc drill bit 5. The electrolyte circulation system of the present application can immediately discharge the broken rock (broken rock) out of the hole along with the electrolyte solution circulation, without the need to lift the drill, unload slag and drill like a traditional mechanical drilling rig, which greatly improves the drilling rate, reduces energy consumption and reduces the cost of drilling.

[0034] In addition, the submersible pump 6 of the present application is installed in the hollow cavity 311 of the pulse generator 3, and the submersible pump 6 is not associated with the arc drill bit 5. In this way, when drilling underground pile holes 200 with different apertures, it is only necessary to replace the drill bit of the corresponding size, which does not affect the structure of the entire electrolyte circulation system. The entire electrolyte circulation system can remain unified, thereby greatly reducing the complexity of the operation.

[0035] In addition, compared with the complex structure of existing mechanical equipment, different drill bits or other mechanical structures are required for different rock formations, and the drill needs to be continuously lifted, slag unloaded, and drilled during the drilling process. Drilling is time-consuming, work efficiency is low, and time and labor costs are high. When dealing with harder rock formations such as granite, mechanical drilling tools need to spend a lot of time drilling, mechanical drilling tools are prone to wear, need to be replaced frequently, and are costly. The present application uses a pulse generator 3 to transfer electrical energy to the arc drill bit 5, and the arc drill bit 5 will crush the surrounding rocks after receiving the electrical energy. It can be seen that the present application uses the arc drill bit 5 to first crush the surrounding rocks and then drill and grind. Compared with the existing drill bit that directly drills and grinds large pieces of rock, it has the characteristics of high crushing efficiency, fast drilling speed, low equipment wear, low failure rate, safety and environmental protection.

[0036] The electrolyte circulation system of the present application can be designed in a positive circulation mode in which the electrolyte solution is input into the underground pile hole 200 through the first pipeline 4, and the crushed rock can be discharged from the gap between the hole walls along with the electrolyte solution.

[0037] The electrolyte circulation system of the present application can also be designed as a reverse circulation mode in which the electrolyte is input into the underground pile hole 200 from the gap in the hole wall, and the crushed rock is discharged from the second pipeline 7 along with the electrolyte solution.

[0038] It should also be noted that the present application has low requirements for the electrolyte solution and is green, environmentally friendly and recyclable.

[0039] In a preferred embodiment of the present application, the submersible pump 6 is arranged in the hollow cavity 311 and close to the end of the electric arc drill bit 5. Specifically, the submersible pump 6 is arranged in the hollow cavity 311 and close to the end of the electric arc drill bit 5. Compared with arranging the pump outside the hole, this arrangement of the present application can quickly and effectively discharge the broken rock at the bottom of the hole, greatly improving the drilling efficiency of the electric arc drill bit 5.

[0040] It should be noted that the first end of the first pipeline 4 is connected to the electrolyte pool 2 , and the second end of the first pipeline 4 freely extends into the hollow cavity 311 of the pulse generator 3 .

[0041] The first end of the second pipeline 5 is connected to the outlet of the submersible pump 6 , and the second end of the second pipeline 5 is connected to the mud pool 1 .

[0042] The inlet of the submersible pump 6 is freely and openly arranged in the hollow cavity 311 of the pulse generator 3. When the electrolyte solution is injected into the bottom of the underground pile hole 200, it needs to submerge the submersible pump 6 so that the submersible pump 6 can smoothly transport the electrolyte solution mixed with crushed rock back to the mud pool 1. After filtering in the mud pool 1, the electrolyte solution will flow back into the electrolyte pool 2 for the next cycle.

[0043] like Figures 1 to 3 As shown, in a preferred embodiment of the present application, the electrolyte circulation system further includes a submersible pump seat (not shown in the figure), which is arranged in the hollow cavity 311 and close to the end of the arc drill 5, and the submersible pump seat is fixed on the inner wall of the hollow cavity 311, and the submersible pump 6 is installed on the submersible pump seat. Specifically, by adding the submersible pump seat, the submersible pump 6 can be effectively installed and fixed, and the submersible pump 6 can be prevented from tilting during operation.

[0044] In a specific embodiment of the present application, the submersible pump seat can be fixedly installed on the inner wall of the hollow cavity 311 by welding, bolt connection, screw connection or snap connection.

[0045] like Figures 1 to 3As shown, in a preferred embodiment of the present application, the pulse generator 3 includes a tube body 31 disposed in the underground pile hole 200, the hollow cavity 311 is configured inside the tube body 31, the first end of the first pipeline 4 is connected to the electrolyte pool 2, and the second end of the first pipeline 4 extends to the bottom position of the hollow cavity 311. Specifically, by extending the second end of the first pipeline 4 to the bottom position of the hollow cavity 311, the space of the underground pile hole 200 does not need to be occupied separately, avoiding the first pipeline 4 from interfering with the pulse generator 3 or affecting the placement or removal of the pulse generator 3.

[0046] like Figure 3 As shown, in a preferred embodiment of the present application, the electrolyte circulation system also includes a power module 8.

[0047] The pulse generator 3 also includes an energy storage capacitor 32 disposed in the hollow cavity 311, and the energy storage capacitor 32 is electrically connected to the power module 8. Specifically, by electrically connecting the energy storage capacitor 32 to the power module 8, the power module 8 will continuously charge the energy storage capacitor 32 to ensure the normal operation of the energy storage capacitor 32, so that the energy storage capacitor 32 can continuously provide electrical energy to the electric arc drill 5, ensuring that the electric arc drill 5 continuously breaks the surrounding rocks.

[0048] It should be noted that a power supply interface 322 is configured on the energy storage capacitor 32 , and the power supply interface 322 is electrically connected to the power supply module 8 .

[0049] like Figure 3 As shown, in a preferred embodiment of the present application, the energy storage capacitor 32 is internally configured with a through hole 321, and the first pipeline 4 passes through the through hole 321. Specifically, the so-called "through hole 321" refers to a vertical through-hole arrangement along the longitudinal direction of the energy storage capacitor 32, that is, the energy storage capacitor 32 is annular as a whole, so that the energy storage volume of the energy storage capacitor 32 can be increased within the effective space, so that it can continuously provide electrical energy to the arc drill 5.

[0050] like Figure 3 As shown, in a preferred embodiment of the present application, the pulse generator 3 further includes a spark switch 9 disposed between the energy storage capacitor 32 and the arc drill bit 5, and the spark switch 9 is electrically connected to the energy storage capacitor 32 and the arc drill bit 5, respectively. Specifically, during operation, the power interface 322 is externally connected to the power module 8 to charge the energy storage capacitor 32. When the electric energy of the energy storage capacitor 32 reaches a preset capacitance value, the spark switch 9 is broken down and the electric energy is transmitted to the arc drill bit 5 through the spark switch 9. The arc drill bit 5 generates a high-voltage arc discharge to crush the surrounding rocks.

[0051] The electric energy of the energy storage capacitor 32 is consumed, the spark switch 9 is automatically closed, and the external power supply module 8 continues to charge the energy storage capacitor 32. After being fully charged, the spark switch 9 is broken, and the electric energy is transmitted to the arc drill 5. The arc drill 5 generates a high-voltage arc discharge to break the surrounding rocks. The pulse generator 3 is charged and discharged repeatedly when working.

[0052] It should be noted that the above-mentioned "capacitance preset value" may increase with the increase of the hardness of the surrounding rock formations, and decrease with the decrease of the hardness of the surrounding rock formations. That is, if the hardness of the rock formations surrounding the current arc drill bit 5 is relatively large, the "capacitance preset value" will also increase accordingly; if the hardness of the rock formations surrounding the current arc drill bit 5 is relatively small, the "capacitance preset value" will also decrease accordingly.

[0053] It is understandable that if the surrounding rock formation is hard, the drilling time will be correspondingly extended, and the capacitance of the energy storage capacitor 32 will need to be increased accordingly.

[0054] On the contrary, if the surrounding rock formation has a lower hardness, the drilling time will be shortened accordingly, and the capacitance of the energy storage capacitor 32 can be reduced accordingly.

[0055] It should be noted that the specific size of the "capacitance preset value" is not limited here.

[0056] In a preferred embodiment of the present application, the arc drill bit 5 is detachably arranged at the lower end of the tube body 31. Specifically, the arc drill bit 5 is detachably arranged at the lower end of the tube body 31, which is convenient for replacement and installation of the arc drill bit 5, wherein the so-called "detachable" installation method can be screw connection, bolt connection, snap connection or riveting, etc.

[0057] It should be noted that the above-mentioned detachable installation method is not limited to the methods listed in the above-mentioned embodiments, that is, as long as the detachable connection between the arc drill bit 5 and the lower end of the tube body 31 can be achieved.

[0058] like Figures 1 to 3 As shown, in a preferred embodiment of the present application, the electrolyte circulation system further includes a filter component 10, which is arranged at the portion where the mud pool 1 is connected to the electrolyte pool 2. Specifically, by adding the filter component 10 at the portion where the mud pool 1 is connected to the electrolyte pool 2, the crushed stones can be filtered, so that the electrolyte solution mixed with the crushed stones is filtered by the filter component 10 and then transported back to the electrolyte pool 2 for the next circulation.

[0059] It can be seen that the electrolyte solution of the present application can be recycled repeatedly, thereby greatly saving costs.

[0060] Specifically, the filter component 10 can be constructed as a filter screen or filter gauze with filter mesh holes.

[0061] It should be noted that the pore size of the filter mesh of the filter component 10 needs to be smaller than the outer contour size of a single conventional gravel, so that the electrolyte solution mixed with gravel can be better filtered.

[0062] like Figure 4 As shown, according to the second aspect of the present application, there is also provided an electrolyte circulation method for high-voltage arc rock breaking, comprising:

[0063] Step S1, transporting the electrolyte solution to the bottom of the underground pile hole 200. Before step S1, all pipelines of the entire electrolyte circulation system need to be connected and checked, and the grounding work needs to be done well to ensure the insulation and safety of the electrolyte circulation system.

[0064] Step S2, charging the energy storage capacitor 32 in the pulse generator 3 to reach a preset capacitance value, triggering the spark switch 9 in the pulse generator 3, and transferring the electrical energy in the energy storage capacitor 32 to the arc drill 5, so as to prompt the arc drill 5 to crush the surrounding rocks into gravel.

[0065] Step S3, the electrolyte solution mixed with crushed rock is transported to the mud pool 1 for precipitation and filtration, so as to be transported to the electrolyte pool 2 for the next cycle. Specifically, the present application first injects the electrolyte solution into the underground pile hole 200 and makes the electrolyte solution submerge the submersible pump 6. When the energy storage capacitor 32 is charged to a preset capacitance value, the spark switch 9 in the pulse generator 3 is triggered, and the electric energy in the energy storage capacitor 32 is transferred to the arc drill 5, so as to prompt the arc drill 5 to crush the surrounding rocks into gravel.

[0066] At this time, the submersible pump 6 starts to work, and the electrolyte solution mixed with crushed rocks is pumped into the mud pool 1. The electrolyte solution after precipitation and filtration is transported back to the electrolyte pool 2 for the next cycle by precipitation and filtration in the mud pool 1. It can be seen that the electrolyte circulation method of the present application can effectively avoid the limitation of the negative pressure of the submersible pump 6 by setting the submersible pump 6 in the underground pile hole 200, ensure the suction of the submersible pump 6, so as to quickly and effectively clean the crushed rocks at the bottom of the underground pile hole 200, ensure the drilling speed, and greatly improve the drilling efficiency of the arc drill 5. The electrolyte circulation method of the present application can immediately discharge the broken rocks (crushed rocks) out of the hole along with the electrolyte solution circulation, without the need to lift the drill, unload the slag and drill down like the traditional mechanical drilling rig, which greatly improves the drilling rate, reduces energy consumption and reduces the cost of drilling.

[0067] In addition, the present application utilizes the pulse generator 3 to transmit electrical energy to the arc drill bit 5, and the arc drill bit 5 will crush the surrounding rocks after receiving the electrical energy. It can be seen that the present application utilizes the arc drill bit 5 to first crush the surrounding rocks and then drill and grind them. Compared with the existing drill bit that directly drills and grinds large pieces of rock, it has the characteristics of high crushing efficiency, fast drilling speed, low equipment wear, low failure rate, safety and environmental protection.

[0068] In a preferred embodiment of the present application, steps S2 to S3 are repeated to form a positive circulation system, and the arc drill bit 5 drills continuously with the cooperation of the positive circulation system.

[0069] It should be noted that since the size of the crushed rock and the depth of the underground pile hole 200 will affect the efficiency of the submersible pump 6, the flow rate of the mud is used to provide feedback to the power regulator of the submersible pump 6 to achieve real-time adjustment of the submersible pump 6 and keep the submersible pump 6 in the optimal efficiency state.

[0070] To sum up, compared with the prior art that sets the pump on the ground, the electrolyte circulation system of the high-voltage electric arc rock breaking of the present application sets the submersible pump 6 in the underground pile hole 200, which can effectively avoid the negative pressure limitation of the submersible pump 6 and ensure the suction of the submersible pump 6, so as to quickly and effectively clean the broken rock at the bottom of the underground pile hole 200, ensure the drilling speed, and greatly improve the drilling efficiency of the arc drill bit 5. The electrolyte circulation system of the present application can immediately discharge the broken rock (broken rock) out of the hole along with the electrolyte solution circulation, without the need to lift the drill, unload slag and drill like traditional mechanical drilling rigs, which greatly improves the drilling rate, reduces energy consumption and reduces the cost of drilling.

[0071] In addition, the submersible pump 6 of the present application is installed in the hollow cavity 311 of the pulse generator 3, and the submersible pump 6 is not associated with the arc drill bit 5. In this way, when drilling underground pile holes 200 with different apertures, it is only necessary to replace the drill bit of the corresponding size, which does not affect the structure of the entire electrolyte circulation system. The entire electrolyte circulation system can remain unified, thereby greatly reducing the complexity of the operation.

[0072] In addition, compared with the complex structure of existing mechanical equipment, different drill bits or other mechanical structures are required for different rock formations, and the drill needs to be continuously lifted, slag unloaded, and drilled during the drilling process. Drilling is time-consuming, work efficiency is low, and time and labor costs are high. When dealing with harder rock formations such as granite, mechanical drilling tools need to spend a lot of time drilling, mechanical drilling tools are prone to wear, need to be replaced frequently, and are costly. The present application uses a pulse generator 3 to transfer electrical energy to the arc drill bit 5, and the arc drill bit 5 will crush the surrounding rocks after receiving the electrical energy. It can be seen that the present application uses the arc drill bit 5 to first crush the surrounding rocks and then drill and grind. Compared with the existing drill bit that directly drills and grinds large pieces of rock, it has the characteristics of high crushing efficiency, fast drilling speed, low equipment wear, low failure rate, safety and environmental protection.

[0073] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An electrolyte circulation system for high-voltage arc rock breaking, characterized in that: include: mud pool; an electrolyte pool, connected to the mud pool; A pulse generator is arranged in the underground pile hole, wherein a hollow cavity is formed inside the pulse generator, and the electrolyte pool is connected to the hollow cavity through a first pipeline, and is used to inject an electrolyte solution into the hollow cavity; an arc drill bit, disposed in the underground pile hole and connected to the lower end of the pulse generator; as well as A submersible pump is disposed in the hollow cavity, the submersible pump is structured with an inlet and an outlet, the outlet of the submersible pump is connected to the mud pool through a second pipeline, wherein the pulse generator releases electrical energy and transmits the electrical energy to the arc drill bit, so that the arc drill bit breaks the surrounding rocks into crushed stones, and the submersible pump sequentially transports the electrolyte solution mixed with the crushed rocks back to the mud pool through the inlet of the submersible pump and the second pipeline; The submersible pump is arranged in the hollow cavity and close to the end of the electric arc drill bit; The pulse generator comprises a pipe body arranged in an underground pile hole, and the hollow cavity is constructed inside the pipe body; Alternatively, the electrolyte pool is connected to the underground pile hole through a first pipeline, and the second pipeline is arranged between the hole wall of the underground pile hole and the pulse generator; the outlet of the submersible pump is connected to the mud pool through a second pipeline, and the second pipeline is arranged in the hollow cavity.

2. The electrolyte circulation system for high-voltage arc rock breaking according to claim 1 is characterized in that: The electrolyte circulation system also includes a submersible pump seat, which is arranged in the hollow cavity and close to the end of the arc drill bit. The submersible pump seat is fixed on the inner wall of the hollow cavity, and the submersible pump is installed on the submersible pump seat.

3. The electrolyte circulation system for high-voltage arc rock breaking according to claim 1, characterized in that: The first end of the first pipeline is connected to the electrolyte pool, and the second end of the first pipeline extends into the bottom position of the hollow cavity.

4. The electrolyte circulation system for high-voltage arc rock breaking according to claim 3 is characterized in that: The electrolyte circulation system also includes a power module; The pulse generator also includes an energy storage capacitor disposed in the hollow cavity, and the energy storage capacitor is electrically connected to the power module.

5. The electrolyte circulation system for high-voltage arc rock breaking according to claim 4, characterized in that: The energy storage capacitor is internally configured with a through hole, and the first pipeline passes through the through hole.

6. The electrolyte circulation system for high-voltage arc rock breaking according to claim 4, characterized in that: The pulse generator further comprises a spark switch arranged between the energy storage capacitor and the electric arc drill, and the spark switch is electrically connected to the energy storage capacitor and the electric arc drill respectively.

7. The electrolyte circulation system for high-voltage arc rock breaking according to claim 3 is characterized in that: The electric arc drill bit is detachably arranged at the lower end of the tube body.

8. The electrolyte circulation system for high-voltage arc rock breaking according to claim 1, characterized in that: The electrolyte circulation system further includes a filter component, which is arranged at a location where the mud pool and the electrolyte pool are connected to each other.

9. A circulation method using the electrolyte circulation system for high-voltage arc rock breaking according to any one of claims 1 to 8, characterized in that: include: delivering an electrolyte solution to the bottom of an underground pile hole; The energy storage capacitor in the pulse generator is charged to reach a preset capacitance value, and the spark switch in the pulse generator is triggered to transfer the electric energy in the energy storage capacitor to the electric arc drill bit, so as to cause the electric arc drill bit to break the surrounding rocks; The electrolyte solution mixed with the crushed rock is transported to the mud pool for sedimentation and filtration, so as to be transported to the electrolyte pool for the next circulation.

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