Smooth blasting peripheral eye flute-shaped cumulative blasting charging device

Abstract

The utility model relates to a smooth blasting peripheral eye flute-shaped energy-gathered blasting charging device which comprises a flute-shaped energy-gathered pipe and a plurality of energy-gathered structures, the energy-gathered pipe comprises two energy-gathered half shells, the two energy-gathered half shells are in butt joint with each other, seams on the two sides of the energy-gathered half shells are closed, and the energy-gathered structures are fixed between the two ends in the energy-gathered pipe at intervals in the length direction of the energy-gathered pipe. Each energy gathering structure comprises a fixing ring and an energy gathering cover, the energy gathering covers are hollow cone components and are fixed to one ends of the fixing rings respectively, an injection stopping ring is arranged between every two adjacent energy gathering structures, a charging cavity is formed between each injection stopping ring and the adjacent energy gathering cover, and a charging hole is formed in one energy gathering half shell. The blasting device has the advantages that the whole blasting device is more efficient and more convenient to charge, the water stopping effect of the device can be improved to a greater extent by sealing charge in advance, and water, gravel and other impurities are prevented from entering the pipe to cause explosion extinguishing; and the internal injection stopping ring is convenient to control the explosive loading amount, so that the effect of smooth blasting can be achieved, and meanwhile, the rock throwing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to a peripheral flute-shaped concentrated blasting charge device for smooth blasting. Background Art

[0002] In the field of modern engineering blasting, smooth blasting technology, as an efficient rock crushing method, has been widely used in tunnel excavation, foundation excavation, mining and other fields. Its main purpose is to control the release of blasting energy, minimize unnecessary rock damage and vibration, so as to achieve the desired blasting effect, ensure the smoothness and stability of the blasting surface, and thus reduce the cost and time of subsequent processing. However, the traditional smooth blasting method has many shortcomings in the implementation process, such as low charging efficiency, unstable blasting effect, poor blasting safety and other problems.

[0003] On the one hand, the traditional method of charging peripheral holes in smooth blasting usually needs to be done manually after drilling, which is not only labor-intensive and inefficient, but also difficult to ensure the uniformity and compactness of the charge, which in turn affects the stability and predictability of the blasting effect. On the other hand, the traditional charging method is easily disturbed by water flow and debris during the charging process in harsh environments, and there is a risk of explosion failure and blasting failure, which increases safety hazards.

[0004] Therefore, it is urgent to develop a new type of smooth blasting peripheral eye focused blasting charge device and blasting method, aiming to significantly improve the effect of smooth blasting through innovative focused charge design and optimized blasting strategy, while reducing costs and improving safety. The successful development and application of this technology will bring revolutionary improvements to the field of engineering blasting technology, especially in high-precision blasting projects such as tunnels, mining and urban construction, which will greatly improve engineering efficiency and safety, and is expected to promote the development of the entire engineering blasting technology to a higher level.

[0005] In recent years, the development of shaped charge blasting technology has provided a new idea for solving the above problems. Shaped charge blasting uses a charge container of a specific shape to concentrate the energy of the explosive to form a high-speed, high-energy jet to accurately penetrate the target material. This technology has been successfully applied in the military and industrial fields, but in the design and implementation of charge for the peripheral holes of smooth blasting, how to effectively integrate shaped charge blasting technology to improve blasting efficiency and blasting quality is still a technical problem that needs to be solved urgently.

[0006] Based on this, a new type of flute-shaped energy-gathering blasting charging device for smooth blasting peripheral eyes is proposed. The device adopts a flute-shaped energy-gathering tube and multiple energy-gathering structures inside, which can not only effectively concentrate the explosion energy and improve the blasting accuracy and effect, but also greatly improve the charging efficiency and safety through the pre-closed charging method. In addition, the injection stop ring design inside the device facilitates the control of the charging amount, further enhances the effect of smooth blasting, and increases the throwing effect on the rock, providing a new idea and tool for the development and application of smooth blasting technology. Through the research and application of this technology, it is expected to solve the problems of traditional smooth blasting in terms of charging efficiency, blasting effect stability and safety, and promote the development of smooth blasting technology in a more efficient and safer direction. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a smooth blasting peripheral eye flute-shaped concentrated energy blasting charging device, which effectively overcomes the defects of the prior art.

[0008] The technical solution of the utility model to solve the above technical problems is as follows:

[0009] A flute-shaped energy-gathering blasting charge device for smooth blasting peripheral eye comprises a flute-shaped energy-gathering tube and a plurality of energy-gathering structures, wherein the energy-gathering tube comprises two energy-gathering half shells with semicircular cross sections, the two energy-gathering half shells are butt-jointed with each other, and the seams on both sides are sealed by sealing members, the plurality of energy-gathering structures are fixed at intervals between the two ends of the interior of the energy-gathering tube along the length direction of the energy-gathering tube, the energy-gathering structure comprises a fixing ring and an energy-gathering cover, the energy-gathering cover is a hollow cone member, and is respectively fixed at one end of the corresponding fixing ring, and the cone tip points to the energy-gathering tube One end of the above-mentioned energy focusing structure is provided with a stop ring between two adjacent energy focusing structures, the outer surface of the above-mentioned stop ring is in contact with the inner surface of the above-mentioned energy focusing tube, a charging cavity is formed between the above-mentioned stop ring and the adjacent above-mentioned energy focusing cover, and an air compartment is formed between the above-mentioned stop ring and the adjacent above-mentioned fixing ring, a charging hole is provided at a position corresponding to each of the above-mentioned charging cavities on one of the above-mentioned energy focusing half shells, the above-mentioned charging cavity is filled with explosives, and the above-mentioned charging holes are closed after the explosives are filled, and an injection stop plate which can be taken out from the joint of the above-mentioned energy focusing half shells is provided at one end of the above-mentioned stop ring away from the energy focusing cover.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a connecting rod is connected to the edge of the injection stop plate, and the injection stop plate can be extended from the seam on one side of the two energy-gathering half shells, and after rotation, it blocks the end of the injection stop ring away from the adjacent energy-gathering cover, or is taken out from the seam on one side of the two energy-gathering half shells.

[0012] Furthermore, one end of the injection stop ring close to the energy focusing cover is configured as a tapered surface.

[0013] Furthermore, the fixing ring and the injection stop ring are respectively fixed on the inner surface of one of the energy-gathering half shells.

[0014] Furthermore, the cone angle of the energy focusing cover is α, and 30°≤α≤120°.

[0015] Furthermore, the sealing member is a sealing film and is attached to the outer side of the seam along the length direction of the seam.

[0016] Furthermore, the above-mentioned explosive is emulsion explosive or water gel explosive.

[0017] The beneficial effects of the utility model are: reasonable structural design, more efficient and convenient charging of the entire blasting device, and pre-sealing of the charge can increase the water-stopping effect of the device to a greater extent, preventing water, gravel and other debris from entering the tube and causing explosion failure; the internal injection stop ring is convenient for controlling the charge amount, and the energy-gathering structure can realize the energy-gathering effect in the direction of the blasthole connection line, which can achieve the effect of smooth blasting while increasing the throwing effect on rocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model's smooth blasting peripheral eye flute-shaped energy-gathering blasting charging device after removing the explosives;

[0019] Figure 2 It is a schematic diagram of the interior of the remaining parts of the smooth blasting peripheral eye flute-shaped shaped charge blasting charging device of the utility model after removing the shaped charge half shell with charge holes;

[0020] Figure 3 It is a structural schematic diagram of the stop injection ring of the smooth blasting peripheral eye flute-shaped energy-gathering blasting charging device of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the stop injection plate of the smooth blasting peripheral eye flute-shaped concentrated energy blasting charging device of the utility model;

[0022] Figure 5 It is a structural schematic diagram of an energy-gathering half shell provided with charge holes in a smooth blasting peripheral eye flute-shaped energy-gathering blasting charge device of the utility model;

[0023] Figure 6 It is an overall schematic diagram of the utility model of the smooth blasting peripheral eye flute-shaped shaped energy blasting charging device after the charging is completed;

[0024] Figure 7 It is a structural schematic diagram of the explosive filling device in the smooth blasting peripheral eye flute-shaped energy-gathering blasting charging device of the utility model;

[0025] Figure 8It is a schematic diagram of the filling structure of the charging device in a blast hole when the explosion transmission direction involved in the blasting method of the smooth blasting peripheral eye flute-shaped concentrated blasting charging device of the utility model is from the inside to the outside of the blast hole.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Energy-gathering tube; 2. Energy-gathering structure; 3. Stop injection ring; 5. Explosive filling device; 11. Energy-gathering half shell; 12. Charging hole; 21. Fixing ring; 22. Energy-gathering cover; 31. Stop injection plate; 51. Injection barrel; 52. Injection push plate; 53. Injection nozzle; 54. Injection tube; 55. Push rod; 56. Pressure plate; 311. Connecting rod. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] Example: Figures 1 to 7 As shown, the smooth blasting peripheral eye flute-shaped energy-gathering blasting charge device of this embodiment comprises a flute-shaped energy-gathering tube 1 and a plurality of energy-gathering structures 2, wherein the energy-gathering tube 1 comprises two energy-gathering half shells 11 with a semicircular cross section, the two energy-gathering half shells 11 are butted against each other, and the seams on both sides are sealed by a seal, and the plurality of energy-gathering structures 2 are fixed at intervals between the two ends of the energy-gathering tube 1 along the length direction of the energy-gathering tube 1, and the energy-gathering structure 2 comprises a fixing ring 21 and an energy-gathering cover 22, the energy-gathering cover 22 is a hollow cone member, and is respectively fixed at one end of the corresponding fixing ring 21, and the cone tip points to one end of the energy-gathering tube 1 A stop ring 3 is provided between two adjacent energy-gathering structures 2, the outer surface of the stop ring 3 contacts the inner surface of the energy-gathering tube 1, a charge cavity (denoted by a in the figure) is formed between the stop ring 3 and the adjacent energy-gathering cover 22, and an air compartment is formed between the stop ring 3 and the adjacent fixing ring 21, a charge hole 12 is provided at a position corresponding to each charge cavity on one of the energy-gathering half shells 11, the charge cavity is filled with explosives, and the charge hole 12 is closed after the explosives are filled, and a stop plate 31 that can be taken out from the seam of the energy-gathering half shell 11 is provided at one end of the stop ring 3 away from the energy-gathering cover 22. In this embodiment, the design of the side seams and charge holes 12 after the two energy-gathering half shells 11 are buckled together realizes the radial energy-gathering effect of the charge, which can increase the corresponding radial energy-gathering blasting cutting effect.

[0030] The blasting method of the smooth blasting peripheral eye flute-shaped concentrated energy blasting charge device of this embodiment comprises the following steps:

[0031] Step 1: Assemble the smooth blasting peripheral eye flute-shaped shaped blasting charge device, as follows:

[0032] S1, bonding a plurality of energy-gathering structures 2 to the inner surface of an energy-gathering half shell 11 without charge holes 12, and making the cone tips of the energy-gathering cover 22 point to one end of the energy-gathering half shell 11;

[0033] S2, snapping another energy-gathering half shell 11 onto the open side of the energy-gathering half shell 11 of S1, so that the two are butted together to form the entire energy-gathering tube 1, and then sealing the seams on both sides of the two energy-gathering half shells 11 except for the air compartment by means of a seal;

[0034] Step 2: Charge the explosives, as follows:

[0035] S3, using the stop plate 31 to block the end of one of the stop rings 3 away from the energy-gathering cover 22, and in the blocking process, filling the explosive into the charge cavity through the charge hole 12, then taking out the stop plate 31 from the joint, sealing the joints on both sides of the air compartment through the seal, and sealing the charge hole 12 through the seal to prevent debris such as gravel in the hole from entering the device;

[0036] Among them, the distance between adjacent injection stop rings 3 and fixed rings 21 is adjusted according to different sympathetic detonation distances to control the amount of each section;

[0037] S4, repeat the above-mentioned S3 operation to fill each charge cavity with explosives;

[0038] Step 3: Drill several blast holes (indicated by K in the figure) in the blasted rock;

[0039] Step 4: Determine the installation method of the smooth blasting peripheral eye flute-shaped shaped blasting charge device in the blast hole, as follows:

[0040] If the direction of explosion is from the outside to the inside of the blast hole, the smooth blasting peripheral eye flute-shaped shaped blasting charge device is installed into the blast hole, and the cone tip of the shaped cover 22 is directed to the outside of the blast hole, and then the starting explosive is installed at one end of the shaped tube 1, and the starting explosive (indicated by g in the figure) is connected to the detonator (indicated by b in the figure) and the detonating wire (indicated by m in the figure);

[0041] If the direction of explosion is from the inside to the outside of the blast hole, the smooth blasting peripheral eye flute-shaped shaped blasting charge device is installed into the blast hole, and the cone tip of the shaped hood 22 is directed toward the inside of the blast hole, and then the starting explosive is installed at one end of the shaped tube 1, and the detonator and detonating wire are connected to the starting explosive;

[0042] Step 5: insert multiple smooth blasting peripheral eye flute-shaped shaped blasting charge devices into the blast hole in sequence according to the scheme adapted in step 4, and keep the seams on both sides of the smooth blasting peripheral eye flute-shaped shaped blasting charge devices in the same direction, and make the charge hole 12 face the inside of the blasted rock, and then lead the detonating wire out of the blast hole after it is attached to the side of the shaped tube 1, and seal the blast hole mouth;

[0043] Step six: detonate the starting explosive via the detonating cord to carry out blasting.

[0044] In this embodiment, in order to facilitate the injection of explosives and ensure the length of the air interval, the energy-gathering structure 2 and the injection stop ring 3 are both glued to the inner surface of one of the above-mentioned energy-gathering half shells 11 (the energy-gathering half shell 11 is provided with a charging hole 12) in advance with glue, and the interval is set to different distances according to actual needs, such as 30 cm, 40 cm, etc., which can be arbitrarily combined to control the spacing between adjacent energy-gathering structures. After the outer shells of the two energy-gathering half shells 11 are snapped together and connected to form an energy-gathering tube 1, seams are formed on both sides of the energy-gathering tube 1. Except for the charging holes 12 and the injection stop ring 3 that are reserved for the injection operation, the remaining parts are wrapped and sealed with sealing members for standby use. In addition, the distance f between adjacent charging holes 12 in the energy-gathering half shell 11 should be controlled to be consistent with the spacing of adjacent energy-gathering structures 2 inside the energy-gathering tube 1 (such as Figure 5 As shown), and should be on the side close to the energy-gathering cover 22. Specifically, according to the spacing between adjacent energy-gathering structures 2, the spacing f of the charge holes 12 can be set to 30 cm, 40 cm, 50 cm, etc.

[0045] In this embodiment, the sealing member is a transparent sealing film (plastic film), and is sealed and attached to the seams on both sides of the energy-gathering tube 1 (excluding the seams of the charge hole 12 and the injection stop ring 3) along the length direction of the seams. The sealed seams can prevent foreign matter from entering and causing explosion failure, thereby ensuring the quality of explosion transmission. After the injection is completed, the sealing member is used to completely seal the gaps in the energy-gathering tube 1 including the charge hole 12 and the injection stop plate 31. When the explosive explodes, the overall effect of the sealing member on the blasting can be ignored.

[0046] It should be noted that when the explosive in charge chamber a explodes, the high temperature melts to form a concentrated energy jet, and detonates the explosive in the adjacent charge chamber in the direction of explosion transmission, thereby realizing long-distance transmission of energy and stable long-distance explosion transmission.

[0047] In this embodiment, the detonator can be detonated by the detonating wire, thereby detonating the explosive. After the explosive is detonated, the energy-gathering cover 22 of the energy-gathering structure 2 adjacent to the explosive forms an energy-gathering jet to detonate the subsequent adjacent explosives until all the explosives are detonated. In this process, there is no need to set a detonating cord, and smooth surface blasting of spaced charges can be achieved.

[0048] In this embodiment, the energy-gathering half shell 11 adopts a PVC pipe of a certain length. Specifically, the length can be changed according to the requirements of the construction site. It can be designed to be 80cm-200cm and can be spliced ​​according to the situation.

[0049] In this embodiment, the cone angle of the energy-gathering cover 22 is α, and 30°≤α≤120°. Optimally, the cone angle of the energy-gathering cover 22 is set to 90°-120°, and the wall thickness of the energy-gathering cover 22 is 1mm-2mm. If the energy-gathering cover 22 is too thin or too thick, the energy of the formed energy-gathering jet will be too small, making it difficult to achieve long-distance explosion transmission. At this time, for the wall thickness of the energy-gathering cover 22, the wall thickness of the energy-gathering cover 22 can be set to be the same, or different wall thicknesses can be set at different positions, for example, the thickness of the hollow cone gradually increases from the top to the bottom. Of course, other forms of thickness changes are also possible.

[0050] In this embodiment, in order to form a focused jet during the explosion, the focused cover 22 needs to be made of metal. Since the temperature during the explosion is high, in order to prevent the focused cover 22 from being vaporized, the focused cover 22 is preferably made of aluminum, iron, aluminum alloy, or iron alloy. Taking aluminum as an example, aluminum is used as the material of the focused cover 22. At this time, the focused cover 22 has a certain ductility and is not easy to vaporize. When it is fixed inside the focused structure, a focused jet can be formed, thereby detonating the explosive in the charge cavity a to achieve long-distance transmission. At this time, the transmission distance can reach more than 30 cm. Therefore, in the case of interval charging, there is no need to add a detonating cord to achieve long-distance transmission, thereby saving costs.

[0051] In this embodiment, the fixing ring 21 in the energy gathering structure 2 can be made into an integrated structure with the energy gathering cover 22, that is, the two are bonded into one piece before construction. Specifically, the fixing ring 21 can be made of PVC material and bonded to the end of the energy gathering cover 22 with glue.

[0052] In this embodiment, the fixing ring 21, the explosive and the energy-gathering tube 1 are all coaxially assembled pipes or cylindrical components.

[0053] In this embodiment, the detonating wire connected to the detonator can be led out from the joint between the two energy-gathering half shells 11. The lead wire will not contact the inner wall of the blast hole, will not increase the actual diameter of the energy-gathering tube 1, and will not reduce the reliability of explosion transmission.

[0054] In the above S4, after the explosive is filled, the energy-gathering tube 1 is reinforced by wrapping an adhesive tape around the outside.

[0055] The above-mentioned explosives are emulsion explosives or water gel explosives. In step five, the blast hole orifice can be sealed with gun mud or water sandbags. For the energy-gathering half shell 11 involved in the above steps, the central angle can be changed according to actual needs, so that the lateral gap of the flute-shaped tube after buckling can have different sizes, which can achieve different energy-gathering effects. Specifically, the central angle of a single energy-gathering half shell 11 can be designed to be 160°-175°, and the size of the seams on both sides of the two energy-gathering half shells 11 can be fine-tuned, and the seams can be closed by sealing members, so that the seams play a radial energy-gathering role, and different seam sizes are selected according to the actual situation on site.

[0056] As a preferred embodiment, Figure 7 As shown, in the above step S3, the explosive is filled using an explosive filling device 5, which includes a syringe 51 with a scale, a medicine injection push plate 52, an injection nozzle 53, a medicine injection tube 54, a push rod 55 and a pressure plate 56. The syringe 51 is open at one end, and the middle of the other end is connected to the injection nozzle 53. One end of the medicine injection tube 54 is connected to the injection nozzle 53, one end of the push rod 55 is vertically connected to the middle of one end of the medicine injection push plate 52, and the pressure plate 56 is vertically connected to the other end of the push rod 55. The medicine injection push plate 52 is installed in the syringe 51, and its outer edge is in sealing contact with the inner wall of the syringe 51, and can move along the syringe 51. When injecting medicine, the other end of the medicine injection tube 54 extends into the charging cavity through the charging hole 12 for filling.

[0057] In the above embodiment, if Figure 3 As shown, the wall thickness d of the injection stop ring 3 is consistent with the axial length of the cone surface h, and is in contact with the inner wall of the energy-gathering tube 1. The injection tube 54 is made of a rubber tube, and its diameter can be equal to or slightly smaller than the charge hole 12, and its length is guaranteed to be able to enter the vicinity of the adjacent energy-gathering cover 22 inside the energy-gathering tube 1. Specifically, according to the axial distance between the charge hole 12 and the adjacent energy-gathering cover 22, the length of the injection tube 54 can be 10cm-50cm. The injection nozzle 53 is made of a hard PVC material, and its length can be 2-5cm, and its diameter is slightly smaller than that of the injection tube 54, and it can be manually fitted on the injection tube 54. The injection tube 54 is a transparent acrylic tube, and the amount of explosives and the cumulative situation can be observed with the naked eye when the explosives are pressed in. A length scale line is set on the injection barrel 51, which can display the internal charge situation of the injection barrel 51. The scale indication can be accumulated by 1ml, and the volume is converted according to the density of the explosive to obtain the amount of explosives. The injection push plate 52 is a circular plate, and its diameter is consistent with the inner diameter of the injection barrel 51 to prevent the explosive from overflowing from the gap when the explosive is pressed into the injection barrel 51. The way to squeeze the explosive into the injection gun is to remove the outer packaging and squeeze it into the injection tube 54 from the end of the explosive package along the injection barrel 51 near the end of the injection push plate 52.

[0058] In this embodiment, Figure 4As shown, the injection stop plate 31 is a circular plate adapted to the cross-sectional shape of the inner cavity of the energy-gathering tube 1. The edge of the injection stop plate 31 is connected with a connecting rod 311. The injection stop plate 31 can be inserted from the joint on one side of the two energy-gathering half shells 11, and after rotation, it blocks the end of the injection stop ring 3 away from the adjacent energy-gathering cover 22, or is taken out from the joint on one side of the two energy-gathering half shells 11. After being inserted into the energy-gathering tube 1 in the gap direction before injection, it is rotated 90 degrees along the axial direction of the connecting rod 311 to be in a position parallel to and in contact with the end of the injection stop ring 3. The thickness of the injection stop plate 31 should be controlled within a range smaller than the lateral gap. Specifically, according to the size of the lateral gap, the thickness of the injection stop plate 31 can be set to 1-3 mm. After the injection of explosives is completed, the injection stop plate is rotated 90 degrees along the axial direction of the connecting rod 311 and then pulled out along the gap.

[0059] In this embodiment, the charge hole 12 should be close to the side of the energy-gathering cover 22 rather than the side of the injection stop ring 3. The purpose is that when injecting explosives, the explosives will be squeezed to the side of the energy-gathering cover 22 first and then accumulated at the injection stop ring 3, ensuring that the amount of explosives reaches the expected amount, and the injection stop plate 31 can better control the amount of explosives to prevent overflow. Optimally, the end of the injection stop ring 3 close to the energy-gathering cover 22 is set as a cone surface. The design purpose of the cone surface is to increase the contact area between the explosive and the injection stop ring 3 when the explosives are pressed against the injection stop ring 3, thereby increasing the friction force and slowing down the flow rate of the explosives. At the same time, the wedge angle formed between the cone surface and the energy-gathering half shell 11 plays a role in fixing the explosives, which is convenient for controlling the amount of explosives.

[0060] It should be noted that: in this embodiment, (such as Figure 8 As shown in the figure, when the charging device is inserted into the blast hole, the lateral gap h of the flute tube is consistent with the lateral gap h of the adjacent flute tube, and the charging hole 12 is facing the inner side i of the blasted rock, and the detonating wire of the detonator is attached to the side of the energy-gathering tube 1 and then led out of the blast hole. In this way, the energy after blasting can be concentratedly transmitted in a predetermined direction, so that the throwing effect on the blasted rock Y is better.

[0061] The flute-shaped charge device and blasting method of this embodiment also have the following advantages:

[0062] 1) The components are pre-assembled in the energy-gathering tube 1 to facilitate the injection operation at the construction site.

[0063] 2) The charging process is simple and efficient. Since the energy-gathering tube 1 assembly is prefabricated in advance, during on-site operation, it is only necessary to load the explosives into the corresponding charging cavity a and then fully seal the energy-gathering tube 1, so that the charging quality can be accurately controlled.

[0064] 3) The inner diameter of the energy-gathering tube 1 does not need to be consistent with the diameter of the emulsion explosive, and the charging is convenient. The diameter of the flute-shaped tube can be changed according to the size of the drill hole, which is more flexible and controllable than the traditional energy-gathering tube.

[0065] 4) The device is simpler. On site, it is only necessary to inject explosives through the charge hole 12 and place it in the blast hole after it is fully sealed, which is convenient for workers to assemble, saves time and cost, and simplifies the blasting process.

[0066] 5) After the energy-gathering tube 1 is filled, it is directly placed in the blast hole. During the placement process, due to the protection of the energy-gathering tube 1, the internal energy-gathering structure 2 is not disturbed by the blast hole wall, which can effectively ensure the explosion transmission effect.

[0067] 6) The lateral gaps of the energy-gathering tube 1 and the charge holes 12 can guide the energy of the explosives and enhance the throwing effect on the blasted rocks. In addition, the flute-shaped tube constraint can constrain the injected explosives and ensure the effect of long-distance explosion transmission.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A peripheral flute-shaped blasting charge device for smooth blasting, characterized in that: The invention comprises a flute-shaped energy-gathering tube (1) and a plurality of energy-gathering structures (2), wherein the energy-gathering tube (1) comprises two energy-gathering half shells (11) with semicircular cross-sections, the two energy-gathering half shells (11) are butt-jointed with each other, and the seams on both sides are sealed by sealing members, the plurality of energy-gathering structures (2) are fixed at intervals between the two ends of the energy-gathering tube (1) along the length direction, the energy-gathering structure (2) comprises a fixing ring (21) and an energy-gathering cover (22), the energy-gathering cover (22) is a hollow cone member, and is respectively fixed to one end of the corresponding fixing ring (21), and the cone tip points to one end of the energy-gathering tube (1), and two adjacent energy-gathering structures are fixed to one end of the energy-gathering tube (1). (2), an injection stop ring (3) is provided between the energy collecting tube (1), the outer surface of the injection stop ring (3) is in contact with the inner surface of the energy collecting tube (1), a charge cavity is formed between the injection stop ring (3) and the adjacent energy collecting cover (22), an air compartment is formed between the injection stop ring (3) and the adjacent fixing ring (21), a charge hole (12) is provided at a position corresponding to each charge cavity on one of the energy collecting half shells (11), the charge cavity is filled with explosives, and the charge hole (12) is closed after the explosives are filled, and an injection stop plate (31) is provided at one end of the injection stop ring (3) away from the energy collecting cover (22) and can be removed from the joint of the energy collecting half shell (11).

2. A smooth blasting peripheral eye flute-shaped shaped charge device according to claim 1, characterized in that: The edge of the injection stop plate (31) is connected to a connecting rod (311). The injection stop plate (31) can be extended from the joint on one side of the two energy-gathering half shells (11), and after rotation, it can block the end of the injection stop ring (3) away from the adjacent energy-gathering cover (22), or be taken out from the joint on one side of the two energy-gathering half shells (11).

3. The peripheral flute-shaped charge device for smooth blasting according to claim 1 is characterized in that: An end portion of the injection stop ring (3) close to the energy gathering cover (22) is configured as a conical surface.

4. The peripheral flute-shaped charge device for smooth blasting according to claim 1 is characterized in that: The fixing ring (21) and the injection stop ring (3) are respectively fixed on the inner surface of one of the energy-gathering half shells (11).

5. The peripheral flute-shaped charge device for smooth blasting according to claim 1 is characterized in that: The cone angle of the energy focusing cover (22) is α, and 30°≤α≤120°.

6. The peripheral flute-shaped charge device for smooth blasting according to claim 1 is characterized in that: The sealing member is a sealing film and is attached to the outer side of the seam along the length direction of the seam.

7. A smooth blasting peripheral eye flute-shaped shaped charge device according to any one of claims 1 to 6, characterized in that: The explosive is emulsion explosive or water gel explosive.

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