Large-diameter static blasting auxiliary device and large-diameter static blasting auxiliary system
By using a temperature-controlled flow channel in a large-diameter static blasting auxiliary device to control the hydration reaction of the fracturing agent, the problem of blowout in large-diameter borehole static blasting was solved, achieving a more efficient construction effect.
Patent Information
- Application Number
- CN202422970304.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-03
AI Technical Summary
During static blasting in large-diameter boreholes, the reaction state of the fracturing agent is difficult to control, which can easily lead to blowout problems.
A large-diameter static blasting auxiliary device is adopted, including a sealing top cover and multiple liners. The intensity of the hydration reaction of the blasting agent is controlled by introducing media of different temperatures into the temperature-controlled flow channel, thus avoiding blowout phenomenon.
Effectively controlling the hydration reaction of the fracturing agent improves the efficiency of static blasting operations, avoids blowout problems, and increases construction efficiency.
Smart Images
Figure CN223449087U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to static blasting technical field, concretely relates to a large diameter static blasting auxiliary device and large diameter static blasting auxiliary system. BACKGROUND
[0002] Static blasting technology is a technology that uses static breaking agent to cause rock cracking and breaking and then excavates, and has the advantages of small noise, small smoke, small vibration, no flying stone, no toxic and harmful gas compared with traditional explosive blasting technology, so it is widely used in rock excavation in urban areas or densely populated areas, and a larger diameter drill hole is usually used to improve blasting efficiency.
[0003] The effect of static breaking agent is greatly affected by the construction environment, especially the temperature, and there are many drawbacks in the use process, such as in winter construction when the temperature is low, the breaking agent hydration reaction is very slow, which causes the breaking time to be long, and after the hydration reaction starts, a large amount of hydration heat is rapidly released, the liquid in the breaking agent slurry reaches 100 DEG C in a short time, and the liquid evaporates at high temperature and accumulates in the drill hole to form high-pressure steam, which will carry the breaking agent out of the drill hole when the pressure reaches a certain value; in the summer construction when the temperature is high, there is no slow stage of breaking agent hydration reaction, but the hole spraying phenomenon will be more severe. The breaking agent hydration reaction is too slow or too severe, which will greatly affect the construction efficiency, especially for larger diameter drill holes. UTILITY MODEL CONTENTS
[0004] The utility model embodiment provides a kind of large diameter static blasting auxiliary device and large diameter static blasting auxiliary system, to solve the problem of the reaction state of breaking agent in the prior art when large diameter drill hole static blasting, prone to hole spraying.
[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:
[0006] Firstly, the utility model embodiment provides a kind of large diameter static blasting auxiliary device, comprising:
[0007] Sealing top cover and multiple arc-shaped lining plates;
[0008] The lining plate is located below the sealing top cover, and the multiple lining plates are sequentially connected around the same center, forming a cylindrical lining plate structure;
[0009] Each lining plate is movably connected with the sealing top cover and has a degree of freedom in the direction perpendicular to the drill hole depth;
[0010] The temperature control flow channel is provided in the lining plate, the flow outlet and the flow inlet are provided on the hole sealing top cover, and two ends of the temperature control flow channel are connected with the flow outlet and the flow inlet respectively.
[0011] In combination with the first aspect, in a possible implementation manner, the temperature control flow channel is a zigzag channel, and the temperature control flow channel extends around an axis of the hole sealing top cover.
[0012] In combination with the first aspect, in a possible implementation manner, the lining plate is a hollow plate, a temperature control pipeline is provided in an inner cavity of the lining plate, two ends of the temperature control pipeline are connected with the flow outlet and the flow inlet respectively, and the temperature control pipeline forms the temperature control flow channel.
[0013] In some embodiments, the lining plate is a stainless steel component.
[0014] In some embodiments, the temperature control pipeline is a copper component, or the temperature control pipeline is a plastic component.
[0015] In combination with the first aspect, in a possible implementation manner, the lower side of the hole sealing top cover is provided with a plurality of slides extending along the radial direction of the hole sealing top cover, the slides correspond to the lining plates one by one, and the lining plates are in sliding fit with the slides.
[0016] In combination with the first aspect, in a possible implementation manner, the flow inlet is provided with a plurality of flow inlets corresponding to the lining plates one by one, and each flow inlet is located above the corresponding lining plate; and the flow outlet is provided with a plurality of flow outlets corresponding to the lining plates one by one, and each flow outlet is located above the corresponding lining plate.
[0017] In combination with the first aspect, in a possible implementation manner, the hole sealing top cover is a stainless steel component.
[0018] Compared with the prior art, the scheme shown in the embodiments of the present application has the following advantages: a plurality of lining plates are inserted into the drill hole, a hole sealing top cover is arranged at the hole opening of the drill hole, and the crushing agent for static blasting is arranged in the internal space enclosed by the plurality of lining plates. If the external environment temperature is too low, the crushing agent is heated by injecting a high-temperature medium into the temperature control flow channel, so as to accelerate the hydration reaction of the crushing agent. After the hydration reaction of the crushing agent for a period of time, a low-temperature medium is injected into the temperature control flow channel to reduce the temperature in the drill hole, so as to reduce the degree of the hydration reaction of the crushing agent. It can be seen that the large-diameter static blasting auxiliary device of the present application can control the degree of the hydration reaction of the crushing agent by injecting media with different temperatures into the temperature control flow channel according to actual operation requirements, and can effectively avoid the generation of the jet hole problem, and can improve the operation efficiency of static blasting.
[0019] In a second aspect, the utility model embodiment further provides a large diameter static blasting auxiliary system, including above-mentioned large diameter static blasting auxiliary device.
[0020] In a possible implementation manner of the second aspect, the large diameter static blasting auxiliary system further includes a circulating inlet pipe, a circulating outlet pipe, a temperature control circulating pump and a medium containing box, a water outlet end of the circulating inlet pipe is communicated with the flow inlet, a water inlet end of the circulating outlet pipe is communicated with the flow outlet, and the water inlet end of the circulating inlet pipe and the water outlet end of the circulating outlet pipe are connected with the medium containing box through the temperature control circulating pump respectively.
[0021] Compared with the prior art, the scheme shown in the embodiment of the application can control the intensity of the hydration reaction of the breaking agent by circulating the medium with different temperatures into the temperature control flow channel according to actual operation requirements, effectively avoid the generation of the problem of the blast hole and improve the operation efficiency of the static blasting. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 The hole sealing top cover and the lining plate are partially cut open in the perspective view of the large diameter static blasting auxiliary device provided by the utility model embodiment;
[0023] Figure 2 The use state schematic view of the large diameter static blasting auxiliary system provided by the utility model embodiment is shown in the figure;
[0024] MARKED FOR EXPLANATION:
[0025] 1, hole sealing top cover; 2, lining plate; 3, temperature control flow channel; 310, temperature control pipeline; 4, flow outlet; 5, flow inlet; 6, circulating inlet pipe; 7, circulating outlet pipe; 8, temperature control circulating pump; 9, rock; 10, drill hole. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical schemes and beneficial effects of the utility model to be solved more clear and obvious, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0027] In the claim, the specification and the above drawings of the utility model, unless otherwise explicitly limited, the terms such as “first”, “second” or “third” are used to distinguish different objects, and are not used to describe a specific order.
[0028] In the claims, the specification, and the drawings of the present application, the terms "include" and "have", including their derivatives, are intended to be construed as encompassing a non-exclusive inclusion of the elements or steps listed thereafter; that is, the method or device that "includes", "has", or "comprises" elements or steps which follow the term, is encompassed by the method or device that "consists" of or "consists essentially of" only those elements or steps.
[0029] In the claims, the specification, and the drawings of the present application, the terms "include" and "have", including their derivatives, are intended to be construed as encompassing a non-exclusive inclusion of the elements or steps listed thereafter; that is, the method or device that "includes", "has", or "comprises" elements or steps which follow the term, is encompassed by the method or device that "consists" of or "consists essentially of" only those elements or steps.
[0030] In the claims, the specification, and the drawings of the present application, the terms "include" and "have", including their derivatives, are intended to be construed as encompassing a non-exclusive inclusion of the elements or steps listed thereafter; that is, the method or device that "includes", "has", or "comprises" elements or steps which follow the term, is encompassed by the method or device that "consists" of or "consists essentially of" only those elements or steps.
[0031] Please refer to Figure 1 , the large diameter static blasting auxiliary device provided by the present application will be described. The large diameter static blasting auxiliary device comprises a hole sealing top cover 1 and a plurality of arc-shaped lining plates 2; the lining plates 2 are located below the hole sealing top cover 1, and the plurality of lining plates 2 are sequentially connected in a head-to-tail manner around the same center to form a cylindrical lining plate 2 structure; each lining plate 2 is movably connected with the hole sealing top cover 1 and has a degree of freedom of moving along a direction perpendicular to the hole depth of the drill hole 10; a temperature control flow channel 3 is arranged in the lining plate 2, a flow outlet 4 and a flow inlet 5 are arranged on the hole sealing top cover 1, and the two ends of the temperature control flow channel 3 are connected with the flow outlet 4 and the flow inlet 5 respectively.
[0032] In the embodiment, the degree of freedom of each lining plate 2 moving along a direction perpendicular to the hole depth of the drill hole 10 means that the lining plate 2 can move along a corresponding radial line of the hole sealing top cover 1, and the radial line corresponds to the position of the center line of the lining plate 2; or the path of the lining plate 2 is not through the radial center of the hole sealing top cover 1, and is arranged at an angle with the radial direction of the hole sealing top cover 1.
[0033] In the embodiment, the broken agent expands outward and pushes the lining plate 2, and at the same time expands outward through the gap between the two adjacent lining plates 2, so as to generate a crack along the expansion direction. Optionally, in order to facilitate the blasting direction, two lining plates 2 are arranged, the two lining plates 2 are symmetrically arranged left and right, two gaps are formed between the two lining plates 2, and the blasting crack extends along the distribution path of the two gaps.
[0034] In the embodiment, the medium can be water, oil, etc., which can flow conveniently in the temperature control flow channel 3 and can conduct heat better.
[0035] In the embodiment, the hole sealing top cover 1 is circular and has an outer diameter slightly larger than the diameter of the drill hole 10, so as to better seal the hole of the drill hole 10.
[0036] Compared with the prior art, the large-diameter static blasting auxiliary device provided in the embodiment has the plurality of lining plates 2 inserted into the drill hole 10, the hole sealing top cover 1 covers the hole of the drill hole 10, and the crushing agent for static blasting is arranged in the internal space enclosed by the plurality of lining plates 2. If the external environment temperature is too low, the crushing agent is heated by injecting the high-temperature medium into the temperature control flow channel 3, and then the hydration reaction of the crushing agent is accelerated. After the hydration reaction of the crushing agent for a period of time, the temperature in the drill hole 10 is reduced by injecting the low-temperature medium into the temperature control flow channel 3, and then the degree of the hydration reaction of the crushing agent is reduced. As can be seen, the large-diameter static blasting auxiliary device can control the degree of the hydration reaction of the crushing agent by injecting the medium with different temperatures into the temperature control flow channel 3 according to actual operation requirements, and at the same time, the problems of slow hydration reaction in low-temperature construction and violent hydration reaction in high-temperature construction in the large-diameter static crushing technology are solved, and the operation efficiency of the static blasting is improved.
[0037] In some embodiments, referring to Figure 1 , the temperature control flow channel 3 is a zigzag channel, and the temperature control flow channel 3 extends around the axis of the hole sealing top cover 1. The zigzag channel design makes the distribution area of the temperature control flow channel 3 in the lining plate 2 larger and the distribution path longer, so that the internal space of the lining plate 2 can be fully utilized to expand the heat exchange area with the crushing agent, and more effective temperature control operation can be achieved.
[0038] In some embodiments, the lining plate 2 is a solid plate, and the temperature control flow channel 3 is directly formed in the lining plate 2 by means of lost foam casting or the like.
[0039] In other embodiments, referring to Figure 1 , the lining plate 2 is a hollow plate, and the temperature control pipeline 310 is arranged in the inner cavity of the lining plate 2. The two ends of the temperature control pipeline 310 are connected with the flow outlet 4 and the flow inlet 5 respectively, and the temperature control pipeline 310 forms the temperature control flow channel 3. The hollow lining plate 2 is lighter in weight and can be formed by welding a plurality of plate materials. The temperature control pipeline 310 is installed and fixed in the lining plate 2, and this design makes the structure of the lining plate 2 simple and the manufacturing cost low.
[0040] Optionally, the inner cavity of the stainless steel plate is filled with solid heat-conducting glue, which can form good heat conduction efficiency between the lining plate 2 and the temperature control pipeline 310, improve the response speed of the temperature control of the crushing agent, and further improve the accuracy of the temperature control. On the other hand, the solid heat-conducting glue can also form support between the inner wall of the lining plate 2 and the temperature control pipeline 310, which positively promotes the stability of the position and structure of the temperature control pipeline 310 in the lining plate 2.
[0041] Optionally, the temperature control pipeline 310 is a serpentine coil that meets the distribution mode of the serpentine channel extending around the axis of the hole sealing top cover 1, thereby maximizing the heat exchange area.
[0042] Optionally, in order to maximize the structural strength of the lining plate 2 in the hollow state while trying to meet the lightweight design requirements, the lining plate 2 is a stainless steel component.
[0043] Optionally, the temperature control pipeline 310 is a copper component, so that the temperature control pipeline 310 has high thermal conductivity, which can effectively improve the temperature control response speed. Alternatively, the temperature control pipeline 310 is a plastic component, so that the temperature control pipeline 310 has good flexibility, making installation more convenient and conducive to higher density pipeline arrangement.
[0044] In some embodiments that can realize the movement of the lining plate 2, the lower side of the hole sealing top cover 1 is provided with a plurality of slides extending along the radial direction thereof, and the slides correspond to the lining plates 2 one by one, and the lining plates 2 are in sliding fit with the slides. In specific implementation, the slide is a convex rail protruding from the lower side of the hole sealing top cover 1, and the top of the lining plate 2 is provided with a guide groove; or the slide is a slide groove recessed in the lower side of the hole sealing top cover 1, and the top of the lining plate 2 is provided with a guide shoe corresponding to the slide groove. In this embodiment, the lining plate 2 and the hole sealing top cover 1 are designed in a sliding fit manner. The lining plate 2 realizes translation in a translational manner, and the force exerted by the lining plate 2 on the sidewall of the drill hole 10 after the expansion of the crushing agent is more uniform, does not affect the transmission of the expansion force, and the crushing effect is better.
[0045] On the basis of the sliding fit between the lining plate 2 and the hole sealing top cover 1, two limit pieces are respectively arranged on the hole sealing top cover 1 along the movement path of the lining plate 2, one of which is used to limit the stroke of the lining plate 2 moving towards the axis of the hole sealing top cover 1 (i.e. moving inward), and the lining plate 2 is located at the position closest to the axis of the hole sealing top cover 1 in the initial state, and the outer diameter of the cylindrical lining plate 2 structure formed at this position is substantially the same as the inner diameter of the drill hole 10, and after being inserted into the drill hole 10, each lining plate 2 is basically attached to the inner wall of the drill hole 10; the other limit piece is used to limit the stroke of the lining plate 2 moving away from the axis of the hole sealing top cover 1 (i.e. moving outward), to avoid the problem that the static crushing agent expands to push the lining plate 2 to move so that the lining plate 2 falls off the hole sealing top cover 1.
[0046] More specifically, in order to realize the connection between the flow inlet 5 and the temperature control flow channel 3, a connecting hose is arranged between the flow inlet 5 and the temperature control flow channel 3, which can correspondingly stretch and deform when the lining plate 2 moves, without affecting the flow of the temperature control medium. Based on this, in order to facilitate the arrangement of the connecting hose, the inlet end of the temperature control flow channel 3 is opened on the inner side surface of the lining plate 2.
[0047] Similarly, in order to realize the connection between the flow outlet 4 and the temperature control flow channel 3, a connecting hose is arranged between the flow outlet 4 and the temperature control flow channel 3, which can correspondingly stretch and deform when the lining plate 2 moves, without affecting the flow of the temperature control medium. Based on this, in order to facilitate the arrangement of the connecting hose, the outlet end of the temperature control flow channel 3 is opened on the inner side surface of the lining plate 2.
[0048] In other scenarios, the lining plate 2 is rotationally connected with the hole sealing top cover 1, and the rotation shaft is perpendicular to the central axis of the hole sealing top cover 1. The breaker is placed in the internal space enclosed by the plurality of lining plates 2. As the breaker expands, the lower side of each lining plate 2 swings outward and presses the sidewall of the borehole 10, realizing the swinging movement of the lining plate 2. The swinging path of the lining plate 2 is coplanar with the axis of the hole sealing top cover 1. Based on this, in order to realize the connection between the flow inlet 5, the flow outlet 4 and the temperature control flow channel 3, connecting hoses are respectively arranged between the flow inlet 5 and the temperature control flow channel 3, and between the flow outlet 4 and the temperature control flow channel 3. The connecting hoses can correspondingly stretch and deform when the lining plate 2 moves, without affecting the flow of the temperature control medium. In order to facilitate the arrangement of the connecting hoses, the inlet end and the outlet end of the temperature control flow channel 3 are both opened on the inner side surface of the lining plate 2.
[0049] In some embodiments, referring to Figure 1 and Figure 2 , the flow inlet 5 is provided with a plurality of flow inlets, which are one-to-one corresponding to the lining plates 2, and each flow inlet 5 is located above the corresponding lining plate 2. The flow outlet 4 is also provided with a plurality of flow outlets, which are one-to-one corresponding to the lining plates 2, and each flow outlet 4 is located above the corresponding lining plate 2. Corresponding to different lining plates 2, the flow inlets 5 and the flow outlets 4 can make the medium flow of each lining plate 2 relatively independent, which is convenient for control and can reduce the failure rate.
[0050] In some embodiments, in order to improve the structural strength of the hole sealing top cover 1, the hole sealing top cover 1 is a stainless steel component.
[0051] Optionally, the sealing top cover 1 is a solid plate member, and a channel is arranged inside the sealing top cover 1, and the flow inlet 5 and the flow outlet 4 are respectively communicated with a channel. Alternatively, the sealing top cover 1 is a hollow plate member, so as to reduce the weight. Based on this, the flow inlet 5 is an adapter connector, which penetrates the sealing top cover 1 from top to bottom, and the lower end is connected with the inlet end of the temperature control flow channel 3; the flow outlet 4 is an adapter connector, which penetrates the sealing top cover 1 from top to bottom, and the lower end is connected with the outlet end of the temperature control flow channel 3; and each adapter connector is connected with the sealing top cover 1 in a sealed manner through welding or by arranging a sealing gasket.
[0052] Based on the same inventive concept, refer to Figure 2 The embodiment also provides a large-diameter static blasting auxiliary system, which comprises the large-diameter static blasting auxiliary device.
[0053] Compared with the prior art, the large-diameter static blasting auxiliary system provided by the embodiment can control the intensity of the hydration reaction of the breaking agent by introducing media of different temperatures into the temperature control flow channel 3 according to actual operation requirements, and can effectively avoid the generation of the problem of the blast hole, and can improve the operation efficiency of the static blasting.
[0054] In some embodiments, refer to Figure 2 The large-diameter static blasting auxiliary system further comprises a circulating inlet pipe 6, a circulating outlet pipe 7, a temperature control circulating pump 8 and a medium containing box (for example, a water tank), the water outlet end of the circulating inlet pipe 6 is communicated with the flow inlet 5, the water inlet end of the circulating outlet pipe 7 is communicated with the flow outlet 4, and the water inlet end of the circulating inlet pipe 6 and the water outlet end of the circulating outlet pipe 7 are respectively connected with the medium containing box through the temperature control circulating pump 8. The temperature control circulating pump 8 provides power for the circulation of the medium in the pipes, and can adjust the temperature of the medium in the medium containing box, so as to control the temperature in the borehole 10, finally effectively control the reaction rate and the reaction intensity of the breaking agent, and improve the blasting efficiency. The temperature control circulating pump 8 can be obtained by purchase, and can meet the requirement of temperature control, and the structure thereof will not be described in detail herein.
[0055] Optionally, the circulating inlet pipe 6 comprises a main pipe and a plurality of branch pipes, the main pipe is connected with the temperature control circulating pump 8, and the branch pipes are connected with the flow inlets 5; and the circulating outlet pipe 7 comprises a main pipe and a plurality of branch pipes, the main pipe is connected with the temperature control circulating pump 8, and the branch pipes are connected with the flow outlets 4.
[0056] Optionally, in order to facilitate the arrangement of the pipes and reduce the construction cost, the circulating inlet pipe 6 and the circulating outlet pipe 7 are plastic pipes.
[0057] The use method of the large-diameter static blasting auxiliary system provided by the embodiment mainly comprises the following steps:
[0058] (a) Blasting parameter design: according to the actual situation of the properties of the rock 9, geological structure, etc., the static blasting design parameters are determined, including the minimum offset line shape, hole diameter, hole spacing, row spacing and hole depth, etc.;
[0059] (b) Determining the size of the device: according to the determined blasting design parameters, the size of the large-diameter static blasting auxiliary device is determined;
[0060] (c) Connecting the temperature control circulating pump 8: connecting the circulating inlet pipe 6 and the circulating outlet pipe 7 with the flow inlet 5 and the flow outlet 4 on the hole sealing top cover 1 and the temperature control circulating water pump to ensure the smoothness of the pipeline;
[0061] (d) Installing the device and grouting: the device is arranged in the drill hole 10, and 1-2 rows can be arranged at a time; after the arrangement is completed, the prepared static breaking agent is injected into the drill hole 10;
[0062] (e) Hot water circulation: after grouting is completed, the temperature control circulating water pump is started to circulate hot water into the water pipe to accelerate the hydration reaction of the breaking agent; it should be noted that this step can be omitted when the construction temperature is high;
[0063] (f) Cold water circulation: after the breaking agent hydration reaction for a period of time, the temperature control circulating water pump is set to cold water for cold water circulation to reduce the temperature in the drill hole 10 and prevent the breaking agent from being sprayed out of the drill hole 10.
[0064] Referring to Figure 2 , specific use examples are as follows:
[0065] First, the size of the device is determined according to the breaking design parameters. The rock 9 is Yanshanian granite, and the hole spacing is determined to be 80 cm, the row spacing is 64 cm, the hole diameter is 10 cm, and the hole depth is 1 m. Therefore, the diameter of the lining plate 2 structure in the large-diameter static blasting auxiliary device is selected to be 10 cm, and the lining plate 2 is a steel plate with a length of 1 m. The lining plate 2 is a hollow structure, and a copper temperature control pipeline 310 with a diameter of 5 mm is arranged inside for water circulation. The copper pipe is arranged in a snake shape. The hole sealing top cover 1 is a circular steel member with a diameter of 12 cm, and two groups of flow outlets 4 and flow inlets 5 with a diameter of 5 mm are arranged on the hole sealing top cover 1 and connected with the temperature control pipelines 310 in the left and right lining plates 2. The two groups of flow outlets 4 and flow inlets 5 are connected with the temperature control circulating pump 8 through the plastic circulating inlet pipe 6 and the circulating outlet pipe 7. The temperature control circulating pump 8 can accurately control the temperature of the medium (such as circulating water) in the medium containing box, and the control range is between 5℃ and 40℃. During static blasting construction, the following steps are taken:
[0066] (1) According to the static blasting design parameters, drill holes are drilled in the rock 9, and the large-diameter static blasting auxiliary device is arranged in the drill hole 10, and two rows are arranged at a time;
[0067] (2) Start the temperature control circulating pump 8 to carry out the initial circulation, ensure the pipeline unobstructed;
[0068] (3) According to the actual situation of the project, I type static breaker is selected, the dosage is 2.9 kg / m, and the water-cement ratio is 0.3; the static breaker and water are taken according to the design parameters and stirred, and after the stirring is completed, the prepared static breaker is injected into the drill hole 10;
[0069] (4) After the grouting is completed, the temperature control circulating pump 8 is started, the water temperature is controlled at 35 DEG C, and the hydration reaction of the breaker is accelerated; after the hydration reaction of the breaker is 2 hours, the temperature of the temperature control circulating pump 8 is set to 10 DEG C, the cold water circulation is carried out, the temperature in the drill hole 10 is reduced, and the breaker is prevented from being sprayed out of the drill hole 10. The two lining plates 2 are extruded to the rock wall during the expansion of the breaker, the blasting pressure is generated to the rock wall, and the counterforce for preventing the punching of the hole sealing top cover 1 is provided.
[0070] The large-diameter static blasting auxiliary system has the advantages of simple operation, good safety, strong practicability, large single-hole charging capacity, strong breaking capacity and significantly improved breaking efficiency.
[0071] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A large diameter static blasting auxiliary device, characterized in that: include: A sealing top cover (1) and a plurality of arc-shaped lining plates (2); The lining plate (2) is located below the sealing top cover (1), and a plurality of the lining plates (2) are connected end to end in sequence around the same center of a circle to form a cylindrical lining plate (2) structure; Each of the lining plates (2) is movably connected to the sealing cover (1) and has the freedom to move in a direction perpendicular to the depth of the drill hole (10); A temperature-controlled circulation channel (3) is provided in the lining plate (2), a circulation outlet (4) and a circulation inlet (5) are provided on the sealing top cover (1), and both ends of the temperature-controlled circulation channel (3) are respectively connected to the circulation outlet (4) and the circulation inlet (5).
2. The large-diameter static blasting auxiliary device according to claim 1, characterized in that: The temperature-controlled circulation channel (3) is a tortuous serpentine channel, and the temperature-controlled circulation channel (3) extends around the axis of the sealing top cover (1).
3. The large-diameter static blasting auxiliary device according to claim 1 or 2, characterized in that: The lining plate (2) is a hollow plate. A temperature control pipe (310) is provided in the inner cavity of the lining plate (2). The two ends of the temperature control pipe (310) are respectively connected to the circulation outlet (4) and the circulation inlet (5). The temperature control pipe (310) forms the temperature control circulation channel (3).
4. The large-diameter static blasting auxiliary device according to claim 3, characterized in that: The lining plate (2) is a stainless steel component.
5. The large-diameter static blasting auxiliary device according to claim 3, characterized in that: The temperature control pipe (310) is a copper component, or the temperature control pipe (310) is a plastic component.
6. The large diameter static blasting auxiliary device according to claim 1, characterized in that: The lower side of the sealing top cover (1) is provided with a plurality of slideways extending in its radial direction, the slideways corresponding to the lining plates (2) one by one, and the lining plates (2) are in sliding engagement with the slideways.
7. The large diameter static blasting auxiliary device according to claim 1, characterized in that: There are a plurality of circulation inlets (5), which correspond one-to-one to the lining plates (2), and each circulation inlet (5) is located above the corresponding lining plate (2); there are a plurality of circulation outlets (4), which correspond one-to-one to the lining plates (2), and each circulation outlet (4) is located above the corresponding lining plate (2).
8. The large-diameter static blasting auxiliary device according to claim 1, characterized in that: The sealing top cover (1) is a stainless steel component.
9. A large diameter static blasting auxiliary system, characterized in that: The large-diameter static blasting auxiliary device comprises the large-diameter static blasting auxiliary device according to any one of claims 1 to 8.
10. The large diameter static blasting auxiliary system according to claim 9, characterized in that: The large-diameter static blasting auxiliary system further comprises a circulation inlet pipe (6), a circulation outlet pipe (7), a temperature-controlled circulation pump (8) and a medium storage box, wherein the water outlet end of the circulation inlet pipe (6) is connected to the circulation inlet (5), the water inlet end of the circulation outlet pipe (7) is connected to the circulation outlet (4), and the water inlet end of the circulation inlet pipe (6) and the water outlet end of the circulation outlet pipe (7) are respectively connected to the medium storage box via the temperature-controlled circulation pump (8).