Static blasting device and static blasting control method

Abstract

The application provides a static blasting device and a static blasting control method, and relates to the technical field of blasting. The static blasting device comprises a blasting pipe, a chemical reaction filling fuel layer and an ignition head which are filled in the blasting pipe, a female connecting assembly which is arranged at one end of the blasting pipe, and a male connecting assembly which is arranged at the other end of the blasting pipe and matched with the female connecting assembly. The female connecting assembly comprises a connecting seat which is fixed to the one end of the blasting pipe, and the connecting seat is provided with a first plug-in slot and a second plug-in slot which are in communication with each other, the first plug-in slot and the second plug-in slot are coaxial, and the first plug-in slot is located at the top of the second plug-in slot. The male connecting assembly comprises a plug-in seat which is fixed to the other end of the blasting pipe, the plug-in seat is hollow, and the plug-in seat is provided with a plug-in rod, and the bottom of the plug-in rod is lower than the bottom of the plug-in seat. The application can connect multiple blasting pipes together to form a whole, and then the length of the whole blasting pipe after being connected in series can be adjusted according to the actual depth of a crack hole, so that the expansion and cracking of rocks and other objects are facilitated.

Description

Technical Field

[0001] This invention relates to the field of blasting technology, and more specifically, to a static blasting device and a static blasting control method. Background Technology

[0002] In many construction sites, the use of explosives is not permitted in rocky environments, and excavators are not feasible. Therefore, carbon dioxide gas blasting technology has emerged. This involves filling iron pipes with carbon dioxide gas and then manually detonating it using a detonator. This technology requires a mechanical device for filling the carbon dioxide gas, such as a carbon dioxide filling machine, resulting in high costs. The minimum cost during construction is 70 yuan per cubic meter. This high unit price makes it unaffordable for many large-scale rock excavations. Many projects cannot afford this unit price, and in many places, various high-tech equipment must be used. Under normal national construction projects, this method is too slow to be completed according to regulations.

[0003] Existing static blasting devices achieve blasting by filling a blasting tube with a chemically reacting fuel to generate gas that expands and causes explosion. These devices do not require a carbon dioxide filling machine and are simple to operate. They are typically activated by an initiation controller connected to a wire with an ignition head at the end, which is placed inside the blasting tube to ignite the chemically reacting fuel. However, since the length of a typical static blasting device is fixed, a single blasting tube of standard size is insufficient when the fracture hole is deep. To address this technical problem, related technologies have proposed manufacturing blasting tubes of various lengths specifically for different fracture hole depths. However, this approach significantly increases equipment costs and results in complex product specifications, hindering on-site management and standardization. Summary of the Invention

[0004] The purpose of this invention is to provide a static blasting device and a static blasting control method, which can address the shortcomings of existing technologies by providing a solution. It can connect multiple blasting tubes in series to form a whole, and then adjust the overall length of the series blasting tubes according to the actual depth of the fracturing hole. It is simple to operate and facilitates the expansion and fracturing of rocks and other objects.

[0005] The technical solution adopted in this invention is as follows:

[0006] In a first aspect, embodiments of this application provide a static blasting device, including a blasting tube, the blasting tube being filled with a chemically reactive fuel layer and an ignition head; one end of the blasting tube is provided with a female connection assembly, and the other end of the blasting tube is provided with a female connection assembly that cooperates with the female connection assembly;

[0007] The female connection assembly includes a connector fixed to one end of the rupture tube. The connector has a first insertion slot and a second insertion slot that are interconnected. The first insertion slot and the second insertion slot are coaxial, and the first insertion slot is located at the top of the second insertion slot.

[0008] The sub-connection assembly includes a plug-in socket fixed to the other end of the rupture tube. The plug-in socket is hollow inside and has a plug-in rod inside. The bottom of the plug-in rod is lower than the bottom of the plug-in socket.

[0009] Furthermore, in some embodiments of the present invention, the aforementioned plug rod is slidably fitted with a sliding sleeve, the sliding sleeve being located between the plug rod and the plug seat; the sliding sleeve is provided with a first sliding hole penetrating the sliding sleeve in the vertical direction, a conductive slide rod is slidably provided in the first sliding hole, the length of the conductive slide rod being greater than the length of the first sliding hole; the plug seat is provided with a first conductive piece that engages with the conductive slide rod, the first conductive piece being located above the conductive slide rod;

[0010] The connector is provided with a third insertion slot. The connector is provided with a second conductive plate at the bottom of the third insertion slot. The second conductive plate is connected to the first conductive plate by a connecting wire. The connecting wire passes through the inside of the rupture tube, and the ignition head is located on the connecting wire.

[0011] Furthermore, in some embodiments of the present invention, the top end of the conductive slide rod is located above the sliding sleeve, and the bottom end of the conductive slide rod is located inside the first sliding hole; the conductive slide rod is provided with a connecting block, which is located above the sliding sleeve; the conductive slide rod is fitted with a first spring, the top end of the first spring is connected to the connecting block, and the bottom end of the first spring is connected to the top of the sliding sleeve.

[0012] Furthermore, in some embodiments of the present invention, the inner wall of the above-mentioned plug-in seat is provided with a second sliding hole, and a slider is slidably disposed in the second sliding hole along the vertical direction. The slider is disposed in the sliding sleeve, and a second spring is connected between the slider and the plug-in seat.

[0013] Furthermore, in some embodiments of the present invention, the side wall of the aforementioned plug rod is provided with a receiving groove, and a locking pin is slidably disposed in the receiving groove; the connecting seat is provided with a locking groove that cooperates with the locking pin, and the locking groove communicates with the second plug groove.

[0014] Furthermore, in some embodiments of the present invention, the outward-facing end of the locking pin is rounded.

[0015] Furthermore, in some embodiments of the present invention, a third spring is provided in the aforementioned receiving groove, one end of the third spring is connected to the insertion rod, and the other end of the third spring is connected to the locking pin, which abuts against the inner wall of the sliding sleeve.

[0016] Secondly, embodiments of this application provide a static blasting control method, including the aforementioned static blasting device, and further including the following steps:

[0017] Multiple static blasting devices are assembled in series, with the sub-connecting component of the previous static blasting device embedded in the mother connecting component of the next static blasting device for connection. After the static blasting devices are connected in series, the ignition heads of the static blasting devices are connected together in series through connecting wires.

[0018] The connected static blasting devices are placed in the fracture hole. The end of the detonation wire of the detonation controller is inserted into the third insertion slot of the uppermost static blasting device and abuts against the second conductive piece 14. The detonation controller is then activated to carry out the blasting.

[0019] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0020] It can connect multiple blasting tubes together to form a whole, and then adjust the overall length of the blasting tubes after connecting them according to the actual depth of the fracturing hole. It is simple to operate and facilitates the expansion and fracturing of rocks and other objects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A partial cross-sectional view of a single static blasting device provided in an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the two static blasting devices provided in an embodiment of the present invention before they are assembled;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial cross-sectional view of the female connecting component and the female connecting component before they are assembled, as provided in an embodiment of the present invention.

[0026] Figure 5 This is a partial cross-sectional view of the assembled female connection component and female connection component provided in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0028] Icons: 1-Burning tube; 2-Chemical reaction filling fuel layer; 3-Ignition head; 4-Connecting seat; 5-First insertion slot; 6-Second insertion slot; 7-Insertion seat; 8-Insertion rod; 9-Sliding sleeve; 10-First sliding hole; 11-Conductive sliding rod; 12-First conductive sheet; 13-Third insertion slot; 14-Second conductive sheet; 15-Connecting wire; 16-Connecting block; 17-First spring; 18-Second sliding hole; 19-Slider; 20-Second spring; 21-Accommodating groove; 22-Locking pin; 23-Locking groove; 24-Third spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, if terms such as "first" or "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0035] Example

[0036] Please refer to Figures 1-6 This embodiment provides a static blasting device, including a blasting tube 1, which is filled with a chemical reaction fuel layer 2 and an ignition head 3. In this embodiment, the chemical reaction fuel layer 2 is composed of a mixture of potassium calcium nitrate fertilizer and white sugar. Potassium calcium nitrate fertilizer is a strong oxidizer; when white sugar and other strong oxidizers are mixed, they become flammable and explosive materials. Upon contact with an open flame, they produce a violent chemical reaction and generate a large amount of carbon dioxide gas. The ignition head 3 is connected to a detonation controller. During detonation, the detonation controller supplies power to the ignition head 3, which ignites the chemical reaction fuel layer 2 to cause the blast. One end of the blasting tube 1 is provided with a female connection assembly, and the other end of the blasting tube 1 is provided with a female connection assembly that cooperates with the female connection assembly.

[0037] The female connection assembly includes a connection seat 4 fixed to one end of the burst tube 1. The connection seat 4 is provided with a first insertion groove 5 and a second insertion groove 6 that are interconnected. The first insertion groove 5 and the second insertion groove 6 are coaxial, and the first insertion groove 5 is located at the top of the second insertion groove 6.

[0038] The sub-connection assembly includes a plug-in seat 7 fixed to the other end of the rupture tube 1. The plug-in seat 7 is hollow inside, and a plug-in rod 8 is provided inside the plug-in seat 7. The bottom of the plug-in rod 8 is lower than the bottom of the plug-in seat 7. Both the plug-in seat 7 and the plug-in rod 8 are cylindrical.

[0039] The plug rod 8 is slidably fitted with a sliding sleeve 9, which is located between the plug rod 8 and the plug seat 7. The sliding sleeve 9 has a first sliding hole 10 that penetrates the sliding sleeve 9 in the vertical direction. A conductive slide rod 11 is slidably installed in the first sliding hole 10, and the length of the conductive slide rod 11 is greater than the length of the first sliding hole 10. The plug seat 7 is provided with a first conductive piece 12 that cooperates with the conductive slide rod 11. The first conductive piece 12 is located above the conductive slide rod 11. The conductive slide rod 11, the first conductive piece 12, and the second conductive piece 14 are all made of copper.

[0040] The connector 4 is provided with a third insertion slot 13. A second conductive sheet 14 is provided at the bottom of the third insertion slot 13. The second conductive sheet 14 is connected to the first conductive sheet 12 by a connecting wire 15. The connecting wire 15 passes through the inside of the rupture tube 1, and the ignition head 3 is located on the connecting wire 15.

[0041] The top end of the conductive slide rod 11 is located above the sliding sleeve 9, and the bottom end of the conductive slide rod 11 is located inside the first sliding hole 10. This can hide the conductive slide rod 11 and prevent it from being exposed to the outside and damaged by bumps or other factors.

[0042] The conductive slide rod 11 is equipped with a connecting block 16, which is located above the sliding sleeve 9. A first spring 17 is fitted onto the conductive slide rod 11; the top end of the first spring 17 is connected to the connecting block 16, and the bottom end of the first spring 17 is connected to the top of the sliding sleeve 9. The first spring 17 applies an upward elastic force to the connecting block 16 and the conductive slide rod 11 to keep the conductive slide rod 11 in its current position. Furthermore, the conductive slide rod 11 can also be kept in this position when the rupture tube 1 is inverted.

[0043] The inner wall of the connector 7 is provided with a second sliding hole 18. A slider 19 is slidably mounted vertically within the second sliding hole 18. The slider 19 is located on the sliding sleeve 9, and a second spring 20 connects the slider 19 and the connector 7. The slider 19 can drive the sliding sleeve 9 to move together. Under normal conditions, the second spring 20 applies an upward elastic force to the slider 19 to keep the slider 19 and the sliding sleeve 9 in their current positions.

[0044] Under normal circumstances, such as Figure 4 As shown, the top of the conductive slide rod 11 is spaced a distance from the first conductive sheet 12, the bottom of the conductive slide rod 11 is located inside the first sliding hole 10, and the bottom of the sliding sleeve 9 is located between the bottom of the plug-in seat 7 and the bottom of the plug-in rod 8.

[0045] In practical use, an appropriate number of static blasting devices are selected and connected in series according to the depth of the fracture hole. During connection, such as... Figure 2 and Figure 4 As shown, the upper static blasting device is vertically aligned with the lower static blasting device, and the sub-connecting assembly at the bottom of the upper static blasting device moves and embeds into the female connecting assembly at the top of the lower static blasting device. During the embedding process, the insertion rod 8 is inserted into the second insertion slot 6, and the insertion seat 7 is inserted into the first insertion slot 5.

[0046] During insertion, the bottom of the sliding sleeve 9 abuts against the connecting seat 4. With continued insertion, the sliding sleeve 9 is pushed by the connecting seat 4 and slides upward relative to the insertion rod 8. The sliding sleeve 9 drives the slider 19 to slide upward, and the slider 19 pulls the second spring 20 to extend. Until the conductive slide rod 11 slides upward with the sliding sleeve 9, the top of the conductive slide rod 11 abuts against the first conductive piece 12.

[0047] As insertion continues, the conductive slide rod 11 remains stationary relative to the insertion rod 8, and the sliding sleeve 9 is held and continues to slide upward. At this time, the bottom of the conductive slide rod 11 gradually slides out from the first sliding hole 10 and abuts against the second conductive piece 14 corresponding to the static blasting device below. Figure 5 As shown, the series splicing process between the mother connection assembly and the daughter connection assembly is completed. After the series splicing, the blasting tubes 1 of the two static blasting devices are connected into a whole, and the overall length increases. At the same time, since the top of the conductive slide rod 11 abuts against the first conductive plate 12 corresponding to the upper static blasting device, and the bottom of the conductive slide rod 11 abuts against the second conductive plate 14 corresponding to the lower static blasting device, the connecting wires 15 of the two static blasting devices are connected in series through the conductive slide rod 11.

[0048] Following this method, multiple static blasting devices are connected in series to form a whole and placed inside the rupture hole. Then, the detonation wire of the detonation controller is inserted into the third insertion slot 13 corresponding to the uppermost static blasting device and abuts against the second conductive plate 14. To facilitate insertion, a plug of a corresponding shape can be provided at the end of the detonation wire of the detonation controller. The plug is inserted into the third insertion slot 13 and abuts against the second conductive plate 14.

[0049] At the time of detonation, the detonation controller is activated. The detonation controller transmits current to the second conductive plate 14 corresponding to the uppermost static blasting device through the detonation wire. Since the ignition heads 3 of each static blasting device are connected in series through the connecting wires 15, the current can flow through each connecting wire 15 and reach the ignition head 3 of each static blasting device. At this time, each ignition head 3 is energized to ignite the chemical reaction filling fuel layer 2 in each blasting tube 1. In this way, the chemical reaction filling fuel layer 2 burns and expands to achieve detonation.

[0050] Thus, the static blasting device provided in this application can connect multiple blasting tubes 1 together to form a whole, and then adjust the overall length of the blasting tubes 1 after being connected together according to the actual depth of the fracturing hole. It is simple to operate and facilitates the expansion and fracturing of rocks and other objects.

[0051] like Figure 4 and Figure 5As shown, in some embodiments of the present invention, the side wall of the aforementioned plug-in rod 8 is provided with a receiving groove 21, and a locking pin 22 is slidably disposed within the receiving groove 21; the connecting seat 4 is provided with a locking groove 23 that cooperates with the locking pin 22, and the locking groove 23 communicates with the second plug-in groove 6. The outward end of the locking pin 22 is rounded, which facilitates the movement of the end of the locking pin 22 and its insertion into the locking groove 23.

[0052] A third spring 24 is provided inside the receiving groove 21. One end of the third spring 24 is connected to the plug rod 8, and the other end of the third spring 24 is connected to the locking pin 22. The locking pin 22 abuts against the inner wall of the sliding sleeve 9.

[0053] Under normal conditions, the locking pin 22 abuts against the inner wall of the sliding sleeve 9, preventing it from popping out of the receiving groove 21. During the series connection of the female and female connecting components, the sliding sleeve 9 is pushed and slides upwards relative to the insertion rod 8, gradually exposing the opening of the receiving groove 21 until the locking groove 23 aligns with the opening of the receiving groove 21. At this point, under the force of the third spring 24, the third spring 24 pushes the smooth end of the locking pin 22 out of the receiving groove 21 and into the locking groove 23 for locking. Figure 5 As shown, the plug rod 8 and the connecting seat 4 can be locked and fixed together by the locking pin 22, which prevents the two static blasting devices from falling off and separating, and facilitates their series connection and splicing.

[0054] This embodiment also provides a static blasting control method, including the above-mentioned static blasting device, and further including the following steps:

[0055] Multiple static blasting devices are assembled in series, with the sub-connecting component of the previous static blasting device embedded in the female connecting component of the next static blasting device for connection. After the static blasting devices are connected in series, the ignition heads 3 of each static blasting device are connected together in series through connecting wires 15.

[0056] The connected static blasting devices are placed in the fracture hole. The end of the detonation wire of the detonation controller is inserted into the third insertion slot 13 of the uppermost static blasting device and abuts against the second conductive plate 14. The detonation controller is then activated to carry out the blasting.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application.

[0058] Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this application is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims. Various modifications and variations of this invention will be apparent to those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A static blasting device comprising a blasting tube, said blasting tube being filled with a chemical reaction filling fuel layer and an ignition head; characterized in that: One end of the blasting pipe is provided with a female connecting assembly, and the other end of the blasting pipe is provided with a male connecting assembly matched with the female connecting assembly; The female connecting assembly comprises a connecting seat fixed to one end of the blasting pipe, and the connecting seat is provided with a first insertion slot and a second insertion slot in communication with each other, and the first insertion slot and the second insertion slot are coaxial, and the first insertion slot is located at the top of the second insertion slot; The male connecting assembly comprises an insertion seat fixed to the other end of the blasting pipe, and the insertion seat is hollow inside, and the insertion seat is provided with an insertion rod inside, and the bottom of the insertion rod is lower than the bottom of the insertion seat; The insertion rod is slidably sleeved with a sliding sleeve, and the sliding sleeve is located between the insertion rod and the insertion seat; the sliding sleeve is provided with a first sliding hole penetrating through the sliding sleeve in the vertical direction, and a conductive sliding rod is slidably arranged in the first sliding hole, and the length of the conductive sliding rod is greater than the length of the first sliding hole; the insertion seat is provided with a first conductive sheet matched with the conductive sliding rod, and the first conductive sheet is located above the conductive sliding rod; The connecting seat is provided with a third insertion slot, and the connecting seat is provided with a second conductive sheet at the bottom of the third insertion slot, and the second conductive sheet is connected with the first conductive sheet through a connecting wire; the connecting wire passes through the inside of the blasting pipe, and the ignition head is arranged on the connecting wire.

2. The static blasting device of claim 1, wherein: The top end of the conductive sliding rod is located above the sliding sleeve, and the bottom end of the conductive sliding rod is located in the first sliding hole; the conductive sliding rod is provided with a connecting block, and the connecting block is located above the sliding sleeve; the conductive sliding rod is sleeved with a first spring, and the top end of the first spring is connected with the connecting block, and the bottom end of the first spring is connected with the top of the sliding sleeve.

3. The static blasting device of claim 1, wherein: The inner side wall of the insertion seat is provided with a second sliding hole, and a sliding block is slidably arranged in the second sliding hole in the vertical direction, and the sliding block is arranged on the sliding sleeve, and the sliding block is connected with the insertion seat through a second spring.

4. The static blasting device of claim 1, wherein: The side wall of the insertion rod is provided with a containing sliding groove, and a locking bolt is slidably arranged in the containing sliding groove; the connecting seat is provided with a locking groove matched with the locking bolt, and the locking groove is in communication with the second insertion slot.

5. The static blasting device of claim 4, wherein: The end of the locking bolt facing outward is smooth.

6. The static blasting device of claim 4, wherein: The containing sliding groove is provided with a third spring, one end of the third spring is connected with the insertion rod, and the other end of the third spring is connected with the locking bolt, and the locking bolt abuts against the inner side wall of the sliding sleeve.

7. A method of static blasting control, characterized by: The static blasting device comprises the static blasting device according to any one of claims 1-6, and further comprises the following steps: A plurality of static blasting devices are sequentially connected in series, wherein the male connecting assembly of a previous static blasting device is embedded into the female connecting assembly of a subsequent static blasting device for connection, and after the static blasting devices are connected in series, the ignition heads of the static blasting devices are connected together through the connecting wires; The static blasting devices connected in series are placed in a crack hole, the end of the detonation control wire of the detonation controller is inserted into the third insertion slot of the uppermost static blasting device and abuts against the second conductive sheet (14), and the detonation controller is started to perform blasting. The end of the locking bolt facing outward is smooth.

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