Environment-friendly blocking device applied to blister mud
By designing an environmentally friendly blocking device including a protective shell, a locking device and a sealing device, the problem of blister mud being easily damaged and fall off during rock drilling blasting is solved, and a more efficient blasting effect and a simpler operating process are achieved.
Patent Information
- Application Number
- CN202421528744.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When used in rock drilling and blasting, blasting mud is easily scratched or slipped by small rock blocks on the inner wall of the gun hole, resulting in poor blockage and affecting the blasting effect.
An environmentally friendly blocking device is designed, including a protective case, a locking device and a closure device. The locking device ensures that the blister mud is not damaged when stuffed into the gun hole through the arrangement of several locking members and the first stick; the sealing device prevents the blister mud from running out of the protective shell through the second stick connected movably.
Effectively protect the blister mud from being damaged, solve the problem that the blister mud is prone to fall off in the upper blast hole, improves blasting efficiency, and reduces the operating complexity and installation difficulty of the device.
Smart Images
Figure CN222689011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rock drilling and blasting, in particular to an environmentally friendly plugging device used for blister mud. Background Art
[0002] With the growing demand for mineral resources in recent years, more and more projects have been applied to tunneling and ore mining by rock drilling and blasting. A good blasting effect is not limited to the design of blasting parameters and the selection of detonators and explosives. The quality of the plugging of the blasthole is also very important. Suitable plugging materials can prevent the premature escape of detonation gas and strengthen the restraint effect on the detonation of explosives in the blasthole, which can effectively improve the utilization rate of explosives and reduce blasting costs.
[0003] In rock drilling and blasting projects, explosive cartons are used for blocking in order to facilitate blocking. This type of blocking easily causes the detonation gas to escape prematurely, which fails to achieve the restraining effect and increases the unit consumption of explosives. Therefore, some people propose to use water bubble mud as a blocking material to block the blastholes. Water bubble mud is cheap. When using it, water is injected into a cylindrical polyethylene plastic bag and the mouth is sealed. Its length is generally about 250 to 300 mm. Its function is to seal the mouth; second, when the explosive explodes, the water cannon mud explodes at the same time, and the water forms a mist distributed in the air, which can reduce dust, cool down and absorb toxic and harmful gases, which is conducive to improving working conditions.
[0004] Although blister mud is an excellent plugging material and has achieved very good blasting effects, in actual use, especially when using upward blastholes for blasting, some problems with blister mud itself seriously restrict its promotion and use. For example, the material made of blister mud itself is not strong. When operators use wooden sticks to insert blister mud into upward blastholes, the small rocks protruding from the inner wall of the blasthole can easily scratch the blister mud, or the blister mud can be poked with a little force; and blister mud is very easy to slip in the upward blasthole, making it difficult to load.
[0005] In view of this, it is necessary to design an environmentally friendly plugging device for use in bubble mud to solve the above problems. Utility Model Content
[0006] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide an environmentally friendly plugging device for blister mud, which can protect the blister mud from being damaged and loosened during the process of being inserted into the blast hole by arranging a protective shell, a locking device and a closing device.
[0007] To achieve the above-mentioned purpose, the utility model provides an environmentally friendly plugging device for blister mud, comprising: a protective shell, a plurality of layers of locking devices respectively arranged around the shell wall of the protective shell, and a closing device arranged at the bottom end of the protective shell; the locking device comprises a plurality of locking components connected to the shell wall of the protective shell at one end; a plurality of the locking components are evenly distributed around the shell wall of the protective shell; the locking components comprise a plurality of first sticks connected to the same position of the shell wall of the protective shell at one end.
[0008] Furthermore, the plurality of first sticks in the locking member are arranged in a sequence of gradually decreasing lengths; the shortest of the plurality of first sticks is adjacent to the protective shell.
[0009] Furthermore, a plurality of the first sticks in the locking member are located in the same plane.
[0010] Furthermore, the environmentally friendly plugging device applied to blister mud also includes: a buffer pad placed in the cavity of the sealing device.
[0011] Furthermore, the top of the protective shell is in a concave state.
[0012] Furthermore, the sealing device includes a first sealing layer arranged at the bottom end of the protective shell, and a second sealing layer arranged directly above the first sealing layer and located inside the protective shell.
[0013] Furthermore, the first sealing layer and the second sealing layer are both composed of a plurality of second rods, one end of which is movably connected to the side wall of the protective shell; and the plurality of second rods are evenly distributed on the surrounding side walls of the protective shell.
[0014] Furthermore, the lengths of several second sticks are all the same; the length of the second stick is greater than half the width of the protective shell; and the other end of the second stick extends toward one side of the top of the protective shell.
[0015] Furthermore, the height interval between the first sealing layer and the second sealing layer is 10 to 15 mm.
[0016] Furthermore, the arrangement direction of the locking devices in the plurality of layers is parallel to the extension direction of the protective shell.
[0017] The beneficial effects of the utility model are:
[0018] 1. The environmentally friendly plugging device for blister mud provided by the utility model is provided with a locking device around the shell wall of the protective shell and a closing device at the bottom end of the protective shell; wherein the locking device includes a plurality of locking members connected to the shell wall of the protective shell at one end, and the plurality of locking members are evenly distributed around the shell wall of the protective shell, and the locking members include a plurality of first sticks connected to the same position of the shell wall of the protective shell at one end, and the arrangement order of the first sticks is arranged in a gradually shortened order, and the shortest length of the first sticks is adjacent to the protective shell, so that the blister mud can be protected from being damaged to the greatest extent during the process of being inserted into the blasthole, and the problem that the blister mud is very easy to fall off in the upward blasthole can be effectively solved, so that the use of blister mud in rock drilling and blasting can be effectively promoted, thereby giving full play to the advantages of blister mud and improving blasting efficiency. This device also has the advantages of simple operation and high installation efficiency.
[0019] 2. The environmentally friendly plugging device for bubble mud provided by the utility model sets the top of the protective shell in a concave state. When a plurality of bubble muds need to be placed to plug the blast hole, if too much force is used to plug the bubble mud plugging device, the reserved area formed by the concave state will avoid direct contact between the two devices, thereby reducing the risk of excessive squeezing of the device.
[0020] 3. The environmentally friendly plugging device for blister mud provided by the utility model is configured to be movably connected with the second stick on the closing device and the protective shell, and the length of the second stick is configured to be greater than the radius of the protective shell. This structure that only allows entry but not exit can prevent blister mud and the buffer pad from escaping from the first closing layer after they are placed in the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram of the structure of an environmentally friendly plugging device for water bubble mud provided by the utility model;
[0022] Figure 2 A bottom view of the environmental protection plugging device for bubble mud provided by the utility model;
[0023] Figure 3 A schematic diagram of the structure of an environmentally friendly plugging device for bubble mud provided by the utility model, which is equipped with bubble mud and a buffer pad;
[0024] Figure 4 This is a schematic diagram of the application of the environmentally friendly plugging device for bubble mud provided by the utility model.
[0025] Reference numerals
[0026] 1-closing device; 11-first closing layer; 12-second closing layer; 2-locking device; 21-locking member; 3-protective shell; 4-buffer pad; 5-blister mud; 6-reserved area; 7-gun mud; 8-priming charge; 9-charge roll. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted. In addition, it should also be noted that the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0029] like Figures 1 to 4 As shown, the utility model provides an environmentally friendly plugging device for blister mud 5, comprising: a protective shell 3, several layers of locking devices 2 respectively arranged around the shell wall of the protective shell 3, and a closing device 1 arranged at the bottom end of the protective shell 3; the locking device 2 includes several locking members 21 connected to the shell wall of the protective shell 3 at one end; several locking members 21 are evenly distributed around the shell wall of the protective shell 3; the locking member 21 includes several first sticks connected to the same position of the shell wall of the protective shell 3 at one end. The arrangement order of several first sticks in the locking member 21 is arranged in a gradually shortened length; the shortest length of several first sticks is adjacent to the protective shell 3. Several first sticks in the locking member 21 are located in the same plane. The arrangement direction of several layers of the locking device 2 is parallel to the extension direction of the protective shell 3. (Wherein, the material of the environmentally friendly plugging device is a high-temperature degradable and environmentally friendly material, which will degrade into carbon dioxide, water and mineralized inorganic salts of the elements contained therein at high blasting temperatures.)
[0030] Such arrangement can protect the blister mud 5 from being damaged during the process of being inserted into the blasthole to the greatest extent, and effectively solve the problem that the blister mud 5 is very easy to fall off in the upward blasthole, so that the use of the blister mud 5 in rock drilling and blasting can be effectively promoted, thereby giving play to the advantages that the blister mud 5 should have and improving the blasting efficiency. This device also has the advantages of simple operation and high installation efficiency. Among them, when the environmental protection plugging device is inserted into the blasthole, because the length of the first stick in the outermost layer is the longest, the several first sticks in the provided locking device 2 will be in a tightened state, and further when the environmental protection plugging device reaches the specified position, several locking members 21 will expand outwards and jam the inner wall of the blasthole. The arrangement of the locking members 21 is similar to a sawtooth shape, which increases the contact area with the inner wall of the blasthole, thereby providing more supporting force for the locking members 21, and it is not easy to loosen. In addition, the environmentally friendly plugging device is made of high-temperature degradable and environmentally friendly materials. Under the high-temperature environment generated by the blast, the main degradation products of the device are carbon dioxide, water and mineralized inorganic salts of the elements it contains, etc. This has little impact on the environment and ecosystem and will not cause pollution or harm.
[0031] Specifically, in some embodiments of the present utility model, the environmentally friendly plugging device applied to the water bubble mud 5 further includes a cushion pad 4 placed in the cavity of the closing device 1. The cushion pad 4 includes cotton.
[0032] With such arrangement, the buffer pad 4 can protect the blister mud 5 by absorbing energy and prevent debris from entering the interior of the device.
[0033] Specifically, in some embodiments of the present invention, the top of the protective shell 3 is in a concave state (the top view of the protective shell 3 is circular).
[0034] With such arrangement, when a plurality of bubble muds 5 need to be placed to plug the blast hole, in case too much force is used to plug the next bubble mud 5, the reserved area 6 formed in the concave state will prevent the two devices from directly contacting each other, thereby reducing the risk of excessive squeezing of the device.
[0035] The sealing device 1 includes a first sealing layer 11 arranged at the bottom end of the protective shell 3, and a second sealing layer 12 arranged directly above the first sealing layer 11 and located inside the protective shell 3. The first sealing layer 11 and the second sealing layer 12 are both composed of a plurality of second sticks, one end of which is movably connected to the side wall of the protective shell 3; the plurality of second sticks are evenly distributed on the four side walls of the protective shell 3. The lengths of the plurality of second sticks are all the same; the length of the second stick is greater than half the length of the width of the protective shell 3; the other end of the second stick extends in a direction toward the top side of the protective shell 3. The height interval between the first sealing layer 11 and the second sealing layer 12 is 10 to 15 mm.
[0036] With such arrangement, the structure that allows entry but not exit can place the cushion pad 4 in the cavity formed by the first sealing layer 11 and the second sealing layer 12 through the first sealing layer 11 , without causing the cushion pad 4 to escape from the first sealing layer 11 .
[0037] Preferably, the dimensions of the environmentally friendly plugging device used for the bubble mud 5 are designed as follows: the inner diameter of the protective shell 3 needs to be larger than the outer diameter of the bubble mud 5 by more than 2 mm, the outer diameter of the protective shell 3 needs to be smaller than the diameter of the blast hole by more than 2 mm, and the height of the protective shell 3 needs to be larger than the height of the bubble mud 5 by more than 1 mm; the height interval between the first sealing layer 11 and the second sealing layer 12 is 10-15 mm; the height of the reserved area 6 formed by the concave state designed at the bottom end of the protective shell 3 is 5-20 mm; the height of the locking member 21 outside the protective shell 3 is 1 / 5-1 / 2 of the height of the protective shell 3, the width of the locking member 21 is 5-10 mm, the number of locking members 21 in each layer of the locking device 2 is 3-15, and the number of installation layers of the locking device 2 is 2-5 layers; when installing the environmentally friendly plugging device, in order to ensure the plugging quality, an area of more than 15 cm needs to be reserved at the blast hole mouth for plugging with the blast mud 7 or the blast paper box.
[0038] The environmentally friendly plugging device for the blister mud 5 provided by the utility model will be specifically described below in conjunction with the embodiments.
[0039] Example
[0040] Determine the design parameters of the rock drilling blasthole: the height of the blasthole is 2m, and the diameter of the blasthole is 35mm; the selected explosive type is emulsion explosive, the height of the explosive is 300mm, and the diameter of the explosive is 33mm; the filling height of each blasthole is 500-1700mm; according to the rock drilling blasting parameters, the diameter of the water-filled blister mud 5 is selected to be 32mm, and the height of the water-filled blister mud 5 is 305mm.
[0041] like Figures 1 to 4As shown, this embodiment provides an environmentally friendly plugging device for blister mud 5, comprising: a protective shell 3, three layers of locking devices 2 respectively arranged around the shell wall of the protective shell 3, a closing device 1 arranged at the bottom end of the protective shell 3, and a cotton cushion 4 placed in the cavity of the closing device 1; the locking device 2 includes a plurality of locking members 21 connected to the shell wall of the protective shell 3 at one end; a plurality of the locking members 21 are evenly distributed around the shell wall of the protective shell 3; the locking member 21 includes a plurality of first sticks connected to the same position of the shell wall of the protective shell 3 at one end. The arrangement order of the plurality of first sticks in the locking member 21 is arranged in a gradually shortened length; the shortest length of the plurality of first sticks is adjacent to the protective shell 3. The plurality of first sticks in the locking member 21 are located in the same plane. The arrangement direction of the plurality of layers of the locking device 2 is parallel to the extension direction of the protective shell 3.
[0042] The top of the protective shell 3 is in a concave state (the top view of the protective shell 3 is circular).
[0043] The sealing device 1 includes a first sealing layer 11 disposed at the bottom end of the protective shell 3, and a second sealing layer 12 disposed directly above the first sealing layer 11 and located inside the protective shell 3. The first sealing layer 11 and the second sealing layer 12 are both composed of a plurality of second sticks, one end of which is movably connected to the side wall of the protective shell 3; the plurality of second sticks are evenly distributed on the four sides of the protective shell 3. The lengths of the plurality of second sticks are all the same; the length of the second stick is greater than half the length of the width of the protective shell 3 (i.e., the radius of the protective shell 3); the other end of the second stick extends in a direction toward the top side of the protective shell 3.
[0044] The locking device 2 includes a first layer locking device 2 arranged around the shell wall of the protective shell 3, a second layer locking device 2 located directly below the first layer locking device 2 and arranged around the shell wall of the protective shell 3, and a third layer locking device 2 located directly below the second layer locking device 2 and arranged around the shell wall of the protective shell 3.
[0045] According to the parameters of the bubble mud 5, the dimensions of the environmentally friendly plugging device applied to the bubble mud 5 are determined as follows: the inner diameter of the protective shell 3 is 2 mm larger than the outer diameter of the bubble mud 5, the outer diameter of the protective shell 3 is 2 mm smaller than the diameter of the blast hole, and the height of the protective shell 3 is 325 mm; the height interval between the first sealing layer 11 and the second sealing layer 12 is 11 mm; the height of the reserved area 6 formed by the concave state of the top design of the protective shell 3 is 16.5 mm (that is, the radius of the concave shape is 16.5 mm); the height of the locking member 21 outside the protective shell 3 is 105 mm, the width of the locking member 21 is 6 mm, the number of locking members 21 in each layer of the locking device 2 is 12, and the number of installation layers of the locking device 2 is three; to ensure the quality of plugging, when installing the environmentally friendly plugging device, a 15 cm area needs to be reserved at the mouth of the blast hole for plugging with the blast mud 7 or the blast paper box.
[0046] Among them, the material of the environmentally friendly plugging device is an environmentally friendly material that can be degraded when the temperature reaches 1500℃. Under the high temperature of blasting, it will degrade into carbon dioxide, water and mineralized inorganic salts of the elements it contains.
[0047] The following is a description of the working process of an environmentally friendly plugging device for water bubble mud provided by the utility model:
[0048] like Figures 1 to 4 As shown, according to the plugging length of the blasthole design, after reserving a 15cm plugging length of the blasthole mud 7 at the orifice, the amount of blister mud 5 required to be inserted is calculated; after completing the production of the environmental protection plugging device, the installation of the blister mud 5 begins. First, a special needle is used to fill the blister mud 5 with water. After the filling is completed, Figure 1Turn the environmental protection plugging device in the embodiment upside down, put the blister mud 5 into the protective shell 3 through the first sealing layer 11 and the second sealing layer 12 on the environmental protection plugging device in turn, and then fill the cotton cushion pad 4 through the first sealing layer 11 and then insert it into the sealing device 1; the second stick on the sealing device 1 is movably connected to the protective shell 3, so after the blister mud 5 and the cushion pad 4 are placed in the shell, they can only go in but not out; then, fill the detonating charge 8 and the medicine roll 9 into the blast hole in turn, and then use a wooden stick to hold the concave opening above the environmental protection plugging device, turn the environmental protection plugging device with the blister mud 5 right side up (top side facing up) and slowly insert it into the blast hole (if resistance is encountered during the process, it may be that there are small stones in the blast hole, then you only need to slowly increase the force until it can be pushed, if it still cannot be pushed, then the environmental protection plugging device It is deemed to be invalid. At this time, the environmental protection plugging device can be vigorously pushed into the blasthole to fill the medicine roll 9 to prevent the middle from having a gap and reduce the plugging quality), and then fill in the next environmental protection plugging device equipped with blister mud 5 in turn; wherein, when the environmental protection plugging device is inserted into the blasthole, because the length of the first stick of the outermost layer is the longest, the several first sticks in the set locking device 2 will be in a tightened state, and further, when the environmental protection plugging device reaches the specified position, several locking components 21 will expand outward and jam the inner wall of the blasthole. The arrangement of the locking components 21 is similar to a sawtooth shape, which increases the contact area with the inner wall of the blasthole, thereby providing more supporting force for the locking components 21 and is not easy to loosen; finally, when the distance from the orifice is 15 cm, the orifice is sealed with gun mud 7 or gun paper box, and the blasthole plugging work is completed.
[0049] In summary, the utility model provides an environmentally friendly plugging device for blister mud, by surrounding a locking device on the shell wall of a protective shell and arranging a closing device at the bottom end of the protective shell; wherein the locking device includes a plurality of locking members connected to the shell wall of the protective shell at one end, and the plurality of locking members are evenly distributed around the shell wall of the protective shell, and the locking members include a plurality of first sticks connected to the same position of the shell wall of the protective shell at one end, and the arrangement order of the first sticks is arranged in a gradually shortened order, and the shortest length of the first sticks is adjacent to the protective shell, so that the blister mud can be protected from being damaged to the greatest extent during the process of being inserted into the blasthole, and the problem that the blister mud is very easy to fall off in the upward blasthole can be effectively solved, so that the use of blister mud in rock drilling and blasting can be effectively promoted, thereby giving play to the advantages of blister mud and improving blasting efficiency. This device also has the advantages of simple operation and high installation efficiency. By setting the top of the protective shell in a concave state, when the blasthole needs to be blocked and multiple blister muds need to be placed, if the force used to plug the next blister mud blocking device is too strong, the reserved area formed by the concave state will prevent the two devices from directly contacting each other, thereby reducing the risk of excessive squeezing of the device. By setting the second stick on the closing device to be movably connected to the protective shell, and setting the length of the second stick to be greater than the radius of the protective shell, this structural setting that only allows entry but not exit can prevent the blister mud and the buffer pad from escaping from the first closing layer after being placed in the shell.
[0050] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. An environmentally friendly plugging device for water bubble mud, characterized in that: include: A protective shell, a plurality of layers of locking devices respectively arranged around the shell wall of the protective shell, and a closing device arranged at the bottom end of the protective shell; the locking device comprises a plurality of locking members connected to the shell wall of the protective shell at one end; a plurality of the locking members are evenly distributed around the shell wall of the protective shell; the locking members comprise a plurality of first sticks connected to the same position of the shell wall of the protective shell at one end.
2. The environmentally friendly plugging device for blister mud according to claim 1 is characterized by: The plurality of first sticks in the locking member are arranged in a sequence of gradually decreasing lengths; the shortest of the plurality of first sticks is adjacent to the protective shell.
3. The environmentally friendly plugging device for blister mud according to claim 2 is characterized by: Several of the first sticks in the locking member are located in the same plane.
4. The environmental protection plugging device for blister mud according to claim 1 is characterized in that: Also includes: A cushion is disposed within the cavity of the closure device.
5. The environmentally friendly plugging device for water bubble mud according to claim 1 is characterized in that: The top of the protective shell is in a concave state.
6. The environmentally friendly plugging device for blister mud according to claim 1 is characterized by: The sealing device comprises a first sealing layer arranged at the bottom end of the protective shell, and a second sealing layer arranged just above the first sealing layer and located inside the protective shell.
7. The environmentally friendly plugging device for blister mud according to claim 6 is characterized by: The first sealing layer and the second sealing layer are both composed of a plurality of second sticks, one end of which is movably connected to the side wall of the protective shell; the plurality of second sticks are evenly distributed on the surrounding side walls of the protective shell.
8. The environmentally friendly plugging device for blister mud according to claim 7 is characterized by: The lengths of the plurality of second sticks are all the same; the length of the second stick is greater than half the width of the protective shell; and the other end of the second stick extends toward one side of the top end of the protective shell.
9. The environmentally friendly plugging device for blister mud according to claim 6, characterized in that: The height interval between the first sealing layer and the second sealing layer is 10-15 mm.
10. The environmentally friendly plugging device for blister mud according to claim 1, characterized in that: The arrangement direction of the locking devices in the plurality of layers is parallel to the extension direction of the protective shell.