Damaged emulsion explosive remodeling device

Abstract

The utility model relates to the technical field of mining blasting, in particular to a damaged emulsion explosive remodeling device. The remodeling device comprises a plastic package roll rotating shaft and an explosive roll rotating shaft which are arranged in parallel, the plastic package roll rotating shaft and the explosive roll rotating shaft are detachably arranged on a support, the plastic package roll rotating shaft and the explosive roll rotating shaft are rotationally connected with the support, and the explosive roll rotating shaft is further provided with a gap used for containing a damaged emulsion explosive roll. The cartridge rotating shaft is provided with clamping pieces on the two sides of the gap respectively, and the clamping pieces are used for fixing the damaged emulsion explosive cartridge. The device is simple in structure, and can solve the problems of direct use of emulsion explosive cartridges with damaged outer packages or reutilization of waste materials by wrapping the damaged emulsion explosive with the plastic film again.

Description

Technical Field

[0001] This utility model relates to the field of mining blasting technology, specifically to a device for reshaping damaged emulsion explosives. Background Technology

[0002] Emulsion explosives are widely used in mining operations both domestically and internationally due to their superior explosive performance, reliable safety, and strong water resistance. As a special type of water-in-oil emulsion continuous medium explosive, emulsion explosives can be categorized into rolled products, bagged products, bulk products, latex solution products, and latex ammonium nitrate explosive blends based on their packaging and product form. Among these, rolled products are more commonly used in mining blasting both domestically and internationally due to their ease of handling and loading.

[0003] Emulsion explosive rolls are made by wrapping emulsion explosive rolls in plastic film into cylindrical rolls. Due to packaging technology issues and improper storage, the plastic film wrapping the emulsion explosive rolls may burst along the sealing line of the cylindrical surface, causing damage to the emulsion explosive packaging and leakage of the explosive, making it impossible to continue filling the rolls. The explosive composition inside such damaged rolls has not changed. If this type of explosive is directly discarded as emulsion explosive waste, it will increase the cost of explosive use and the workload of disposal.

[0004] Currently, one approach to handling emulsion explosive rolls with damaged outer plastic film packaging is to directly ignore the damage and proceed with the loading operation. However, after loading, the emulsion explosive loses its outer plastic film protection, making it impossible to control the coupling and structural changes of the explosive charge within the borehole. Furthermore, leaked explosives from the damaged rolls easily adhere to the borehole wall, hindering subsequent loading operations and even causing blockages, potentially leading to large fragments and increasing the risk of secondary damage. Another approach is to completely remove the outer plastic film packaging from the damaged emulsion explosive rolls and treat the components as waste for chemical separation and secondary processing, as illustrated by the emulsion explosive waste treatment device and method disclosed in CN105111030A. However, this method is time-consuming and labor-intensive, increasing explosive processing and environmental costs. Moreover, the requirements for explosive component separation and harmless treatment are high, necessitating specialized explosive production workshops, which are generally unsuitable for mining enterprises to carry out independently, raising concerns about safety.

[0005] Therefore, how to handle damaged emulsion explosives to achieve a balance between economy and safety is a technical problem that needs to be solved. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a device for reshaping damaged emulsion explosives.

[0007] The present invention adopts the following technical solution:

[0008] A device for reshaping damaged emulsion explosive includes a plastic-sealed roll shaft and an explosive roll shaft arranged in parallel. Both the plastic-sealed roll shaft and the explosive roll shaft are telescopic rods and are detachably mounted on a support. The plastic-sealed roll shaft and the explosive roll shaft are rotatably connected to the support. The explosive roll shaft also has a gap for placing the damaged emulsion explosive roll. Clamping members are provided on both sides of the gap to fix the damaged emulsion explosive roll.

[0009] Preferably, it also includes a medicine roll rotating shaft transmission rod, which is arranged parallel to the medicine roll rotating shaft. The two ends of the medicine roll rotating shaft transmission rod are respectively fixedly connected to the medicine roll rotating shafts on both sides of the gap through transmission brackets, and the synchronous rotation of the medicine roll rotating shafts on both sides of the gap is maintained by the transmission brackets.

[0010] Preferably, the transmission support is a telescopic support, which is used to adjust the transmission rod of the explosive cartridge to fit tightly against the outer surface of the damaged emulsion explosive cartridge.

[0011] Preferably, two sets of the cartridge rotating shaft drive rods are symmetrically arranged on the outside of the damaged emulsion explosive cartridges, and the shape of the cartridge rotating shaft drive rods is set to conform to the concave curved surface of the outer surface of the damaged emulsion explosive cartridges.

[0012] Preferably, the bracket includes two pairs of support rods that respectively support the plastic-sealed roll spindle and the medicine roll spindle, and the bottom of the support rods are connected as one piece by a base.

[0013] Preferably, the top of the support rod is provided with a through hole, and there is a rotational clearance between the plastic-sealed roller and the through hole of the oppositely arranged support rod, or a rotating component is provided between the roller and the through hole to allow the plastic-sealed roller to rotate on the support along the rod axis.

[0014] Preferably, there is a rotational clearance between the medicine roll shaft and the through hole of the oppositely arranged support rod, or a rotating component is provided between the shaft and the through hole to allow the plastic-sealed roll shaft to rotate on the support along the rod axis.

[0015] Preferably, a turntable is provided at one or both ends of the medicine roll rotating shaft.

[0016] Preferably, the turntable is connected to a motor, or a rocker arm is provided on the turntable.

[0017] Preferably, the clamping member is detachably mounted on the medicine roll shaft, and the clamping force of the clamping member is greater than 80KN.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This plastic sealing device provides a simple method and approach for handling damaged emulsion explosives, allowing them to be reused normally through reshaping.

[0020] 2. The installation of both the plastic-sealed roll and the damaged emulsion explosive roll in this device is adjustable, accommodating the reshaping and sealing of emulsion explosives of different specifications. Because the roll length is adjustable, the relative positions of the plastic-sealed roll and the damaged emulsion explosive roll are also adjustable. In the absence of a suitable size and width of plastic-sealing film, the relative positions of the two can be adjusted to allow for comprehensive reshaping of the damaged emulsion explosive roll's outer packaging using a multi-layer spiral winding method.

[0021] 3. Damaged emulsion explosive cartridges are assisted in transmitting the torque of the cartridge shaft through the cartridge shaft transmission rod, which can effectively prevent the cartridge from twisting and deforming during the reshaping process.

[0022] 4. The film material for the plastic seal roll is readily available. It can be the same outer packaging plastic film as the emulsion explosive roll, or it can be a transparent plastic wrap or other alternatives. The cost is low, and safety can be ensured without affecting the performance of the emulsion explosive.

[0023] 5. This plastic sealing device is small and portable, and can be reshaped on the mining blasting site, avoiding the cost of explosives wasted due to the on-site damage of explosive cartridges. It can greatly save the cost of using explosives in the mine and reduce the workload of explosives disposal.

[0024] 6. Using this device, damaged explosives can be directly loaded without much cost and effort, eliminating explosive leakage caused by damaged outer packaging of emulsion explosives. This avoids charging blockage, agent leakage, and explosive residue, as well as the resulting blasting safety problems, ensuring the consistency between the borehole charging structure and the blasting design, and preventing other blasting accidents such as misfires.

[0025] 7. This reshaping device solves the problem of directly using or reusing damaged emulsion explosive cartridges. The device has a simple structure, is safe and convenient to use, and saves on additional costs caused by explosive damage in mining blasting. It can be widely used in various construction sites that use emulsion explosive cartridges for blasting and has a very high application prospect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall remodeling device for damaged emulsion explosives in Example 1.

[0027] Figure 2 This is a schematic diagram of the end-capsule clamp holding the end of the emulsion explosive cartridge in Example 1.

[0028] Figure 3 This is a schematic diagram of the overall remodeling device for damaged emulsion explosives in Example 2.

[0029] Figure 4 This is a front view of the device for reshaping damaged emulsion explosives in Example 2.

[0030] Figure 5 This is a top view of the device for reshaping damaged emulsion explosives in Example 2.

[0031] Figure 6 This is a schematic diagram of the arrangement of the medicine roll transmission rod in Example 2.

[0032] Figure 7 This is a preferred schematic diagram of the medicine roll transmission rod in Example 2.

[0033] The meanings of the symbols in the diagram are as follows:

[0034] 1-1. Base; 1-2. Plastic-sealed roll support rod; 1-3. Medicine roll support rod; 1-4. Rotating disk; 1-5. Rotating rocker arm; 1-6. Clamping component; 1-7. Medicine roll rotating shaft; 1-8. Plastic-sealed roll rotating shaft; 1-9. Transmission bracket; 1-10. Medicine roll rotating shaft transmission rod; 1-11. Quick-change socket.

[0035] 2-1. Plastic-sealed rolls; 2-2. Damaged emulsion explosive rolls; 2-3. Plastic-sealing film. Detailed Implementation

[0036] The technical solution of this utility model will be described in more detail below with reference to the accompanying drawings and embodiments:

[0037] Example 1

[0038] like Figures 1-2 As shown, a device for reshaping damaged emulsion explosive includes a plastic-sealed roll shaft 1-8 and a cartridge shaft 1-7 arranged in parallel. The plastic-sealed roll shaft 1-8 and the cartridge shaft 1-7 are detachably mounted on a support. The plastic-sealed roll shaft 1-8 and the cartridge shaft 1-7 are rotatably connected to the support. The cartridge shaft 1-7 also has a gap for placing a damaged emulsion explosive cartridge 2-2. Clamping elements 1-6 are respectively provided on both sides of the gap to fix the damaged emulsion explosive cartridge 2-2.

[0039] Clamping element 1-6 can be a spring clamp. Clamping element 1-6 is detachably mounted on the medicine roll shaft 1-7 for easy replacement, and the clamping force of clamping element 1-6 is not less than 80kN.

[0040] The support includes two pairs of support rods that support the plastic-sealed roll shaft 1-8 and the medicine roll shaft 1-7 respectively, referred to as plastic-sealed roll support rod 1-2 and medicine roll support rod 1-3. The bottom of each support rod is connected as a whole through the base 1-1.

[0041] In this embodiment, each support rod has a through hole at its top. A rotational clearance exists between the through holes of the plastic-sealed roll shaft 1-8 and the oppositely arranged plastic-sealed roll support rod 1-2, allowing the plastic-sealed roll shaft 1-8 to rotate around its axis on the support; a rotational clearance exists between the through holes of the medicine roll shaft 1-7 and the oppositely arranged medicine roll support rod 1-3, allowing the medicine roll shaft 1-7 to rotate around its axis on the support.

[0042] In this embodiment, both the plastic-sealed roll shaft 1-8 and the explosive roll shaft 1-7 are telescopic rods, such as sleeve-type telescopic rods, with manual or electric length adjustment. The explosive roll shaft 1-7 has axial sliding capability on the support on either side of the gap, and the plastic-sealed roll shaft 1-8 also has axial sliding capability on the support, facilitating the fixing of the explosive roll shaft 1-7 and the adjustment of the plastic-sealed roll position. When there is no plastic-sealing film 2-3 matching the length of the damaged emulsion explosive, the plastic-sealing film 2-3 can be fully wrapped and reshaped to completely reshape the outer packaging of the damaged emulsion explosive roll by adjusting the relative positions of the plastic-sealed roll and the damaged emulsion explosive roll in a multi-layer spiral winding manner.

[0043] Furthermore, rotating components are provided between the plastic seal roll shaft 1-8 and the through hole, and between the medicine roll shaft 1-7 and the through hole. The rotating components are bearings or other similar components to ensure the rotation of the plastic seal roll shaft 1-8 and the medicine roll shaft 1-7, and to provide locking of the shaft in the upper horizontal direction.

[0044] A turntable 1-4 is also provided at one or both ends of the medicine roll rotating shaft 1-7. The turntable 1-4 can be connected to a motor, or equipped with a rocker arm 1-5, etc., to assist in controlling the rotation of the medicine roll rotating shaft 1-7.

[0045] In this embodiment, the plastic-sealed roll support rod 1-2 and the cartridge support rod 1-3 are fixed to the base 1-1 by welding. The base 1-1 can be made of rectangular steel plate, or it can be made of triangular steel, square steel pipe, etc., welded into a rectangle to reduce the overall weight of the device and better adapt to the working conditions of the undulating terrain in the mining area. The bodies of the plastic-sealed roll support rod 1-2 and the cartridge support rod 1-3 can be made of round or square steel pipe, with the through hole diameter slightly larger than that of the plastic-sealed roll shaft 1-8 and the cartridge shaft 1-7.

[0046] The dimensions of this reshaping device can be adjusted according to actual needs. In one specific embodiment, the base 1-1 has a length × width × height of 85cm × 40cm × 5cm and a through hole diameter of 1.7cm. The square cross-section of the support rod has a length × width of 5cm × 3cm. The height of the plastic-sealed roll support rod 1-2 is slightly higher than that of the medicine roll support rod 1-3. The height of the plastic-sealed roll support rod 1-2 is 40cm, and the height of the medicine roll support rod 1-3 is 30cm.

[0047] Example 2

[0048] Both ends of the damaged emulsion explosive cartridge 2-2 are connected to the cartridge shaft 1-7 via clamping members 1-6. During rotation, the damaged emulsion explosive cartridge 2-2 is subjected to the torque transmitted by the cartridge shaft 1-7, which can easily cause the cartridge to twist and deform. Therefore, based on Example 1, a cartridge shaft transmission rod 1-10 is also provided.

[0049] refer to Figures 3-5 The cartridge shaft drive rod 1-10 is set parallel to the cartridge shaft 1-7. Both ends of the drive rod 1-10 are connected to the cartridge shafts 1-7 on both sides of the gap via transmission brackets 1-9. The drive rod 1-10 ensures synchronous rotation of the cartridge shafts 1-7 on both sides of the gap. By using the drive rod 1-10 to transmit torque instead of the damaged emulsion explosive cartridge 2-2, torsional deformation that may occur during the reshaping process of the damaged emulsion explosive cartridge 2-2 is avoided.

[0050] The transmission bracket 1-9 and the explosive cartridge shaft 1-7 are detachably connected via a quick-change socket 1-11. The quick-change socket 1-11 can be a threaded interface or a slot interface, facilitating the removal and replacement of transmission brackets 1-9 at different heights to accommodate the diameter of broken emulsion explosive cartridges 2-2 with varying cross-sectional sizes. This ensures that the transmission rod 1-10 connected to the explosive cartridge shaft is tightly fitted against the outer packaging sidewall of the explosive cartridge after the broken emulsion explosive cartridge 2-2 is clamped and fixed at the end. The transmission bracket 1-9 can also be configured as a telescopic bracket, allowing for faster adjustment of the transmission rod 1-10 to ensure it is tightly fitted against the outer surface of the broken emulsion explosive cartridge 2-2.

[0051] The cartridge drive shaft 1-10 rotates together with the damaged emulsion explosive cartridge 2-2 and is wrapped in the plastic film 2-3. After reshaping, the cartridge drive shaft 1-10 can be pulled out from one end of the cartridge to separate the cartridge drive shaft 1-10 from the reshaped damaged emulsion explosive cartridge 2-2. The gap created after pulling out the cartridge drive shaft 1-10 can be filled by squeezing and kneading the emulsion explosive. Then, the plastic film 2-3 at both ends of the emulsion explosive cartridge can be neatly sealed without affecting the performance of the reshaped emulsion explosive cartridge.

[0052] refer to Figures 6-7 In order to further improve the torque transmission effect of the cartridge shaft drive rod 1-10 on the broken emulsion explosive cartridge 2-2, two sets of cartridge shaft drive rods 1-10 are symmetrically arranged at a 180° interval on the outside of the broken emulsion explosive cartridge.

[0053] The shape of the drive rod 1-10 of the explosive cartridge can be set to conform to the concave curved surface of the outer surface of the damaged emulsion explosive cartridge 2-2, so as to reduce the gap formed during the repeated wrapping process of the plastic film 2-3.

[0054] Example 3

[0055] The method for reshaping damaged emulsion explosives using this reshaping device includes the following steps:

[0056] S1. Before the remolding operation begins, check whether the production date and hazard and transport markings of the damaged emulsion explosive cartridge 2-2 meet the continued use specifications. If the damaged emulsion explosive 2-2 has expired or the markings are unclear, it cannot be sealed and used and must be transferred to the explosive disposal site for unified disposal.

[0057] S2. Fix the sealing rings at both ends of the qualified broken emulsion explosive cartridge 2-2 to the clamping parts 1-6 on the cartridge shaft 1-7. At the same time, adjust the transmission bracket 1-9 so that the cartridge shaft transmission rod 1-10 is in contact with the outer surface of the broken emulsion explosive cartridge 2-2, so that the cartridge shaft 1-7, the broken emulsion explosive cartridge 2-2 and the cartridge shaft transmission rod 1-10 form a rotating whole.

[0058] S3. Select a plastic seal roll 2-1 of the corresponding size of the damaged emulsion explosive cartridge 2-2, install it on the plastic seal roll shaft 1-8, pull the end of the plastic seal film 2-3 of the plastic seal roll 2-1 to the surface of the damaged emulsion explosive cartridge 2-2 for adhesion and fixation, and then rotate the cartridge shaft 1-7 to automatically wind the plastic seal film 2-3 on the plastic seal roll 2-1 to the surface of the damaged emulsion explosive cartridge 2-2 and the cartridge drive rod 1-10.

[0059] S4. The surface of the damaged emulsion explosive cartridge 2-2 is completely wrapped with the plastic sealing film 2-3 to complete the reshaping. After ensuring that there is no more leakage at the damaged area of ​​the damaged emulsion explosive cartridge 2-2, cut the plastic sealing film 2-3 and glue the cut ends of the plastic sealing film 2-3 to the surface of the cartridge; pull out the cartridge shaft drive rod 1-10 from both ends of the reshaped damaged emulsion explosive cartridge 2-2, remove the reshaped damaged emulsion explosive cartridge 2-2 from the cartridge shaft 1-7, tidy up the gap formed by pulling out the cartridge shaft drive rod 1-10, and neatly seal the plastic sealing film 2-3 at both ends of the cartridge to obtain the reshaped emulsion explosive cartridge.

[0060] In this method, the sealing roll 2-1 is made of polyethylene or polyvinyl chloride film. The width of the sealing film 2-3 of the sealing roll 2-1 is selected according to the length of the damaged emulsion explosive roll, and its length should be about 20cm longer than the length of the roll so that the end face of the damaged emulsion explosive roll 2-2 is also protected after wrapping. If a suitable size sealing roll 2-1 is not available at the construction site, a sealing film 2-3 with a width smaller than the length of the damaged emulsion explosive roll 2-2 can be used, and the damaged emulsion explosive roll 2-2 can be spirally wrapped by adjusting the sealing roll 2-1. The sealing film 2-3 should be wrapped 4 to 6 times on the outer packaging surface of the damaged emulsion explosive roll 2-2 to achieve a better repair effect.

[0061] The plastic sealing film 2-3 can be adhered to the surface of the damaged emulsion explosive cartridge 2-2 with adhesive tape. When adhering, both the cylindrical and end faces of the damaged emulsion explosive cartridge 2-2 need to be adhered to prevent the damaged emulsion explosive cartridge 2-2 from falling off from the reshaped and wrapped plastic sealing film 2-3.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for reshaping damaged emulsion explosives, characterized in that, The device includes a plastic-sealed roll spool and a propellant roll spool arranged in parallel. The plastic-sealed roll spool and the propellant roll spool are detachably mounted on a bracket. The plastic-sealed roll spool and the propellant roll spool are rotatably connected to the bracket. The propellant roll spool also has a gap for placing a broken emulsion explosive roll. Clamping elements are provided on both sides of the gap to fix the broken emulsion explosive roll.

2. The device for reshaping damaged emulsion explosives according to claim 1, characterized in that, It also includes a medicine roll rotating shaft transmission rod, which is arranged parallel to the medicine roll rotating shaft. Both ends of the medicine roll rotating shaft transmission rod are fixedly connected to the medicine roll rotating shafts on both sides of the gap through transmission brackets, and the medicine roll rotating shafts on both sides of the gap are kept rotating synchronously by the transmission brackets.

3. The device for reshaping damaged emulsion explosives according to claim 2, characterized in that, The transmission support is a telescopic support, which is used to adjust the transmission rod of the explosive cartridge to fit tightly against the outer surface of the damaged emulsion explosive cartridge.

4. The device for reshaping damaged emulsion explosives according to claim 2, characterized in that, Two sets of the cartridge rotating shaft drive rods are symmetrically arranged on the outside of the damaged emulsion explosive cartridges, and the shape of the cartridge rotating shaft drive rods is set to conform to the concave curved surface of the outer surface of the damaged emulsion explosive cartridges.

5. The device for reshaping damaged emulsion explosives according to claim 1, characterized in that, The bracket includes two pairs of support rods that respectively support the plastic-sealed roll spindle and the medicine roll spindle, and the bottom of the support rods are connected as one piece by a base.

6. The device for reshaping damaged emulsion explosive according to claim 5, characterized in that, The top of the support rod is provided with a through hole; there is a rotational gap between the plastic-sealed roll shaft and the through hole of the oppositely arranged support rod, or a rotating component is provided between the plastic-sealed roll shaft and the through hole to allow the plastic-sealed roll shaft to rotate on the support about its axis; there is a rotational gap between the medicine roll shaft and the through hole of the oppositely arranged support rod, or a rotating component is provided between the plastic-sealed roll shaft and the through hole to allow the plastic-sealed roll shaft to rotate on the support about its axis.

7. A device for reshaping damaged emulsion explosives according to claim 6, characterized in that, Both the plastic-sealed roll shaft and the medicine roll shaft are telescopic rods. A turntable is also provided at one or both ends of the medicine roll shaft. The turntable is connected to a motor, or a rocker arm is provided on the turntable.

8. The device for reshaping damaged emulsion explosive according to claim 1, characterized in that, The clamping member is detachably mounted on the medicine roll shaft, and the clamping force of the clamping member is greater than 80KN.

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