Explosive filling powder returning safety recovery device
By designing a security recovery device that contains retractable legs, locking mechanisms, supporting rods and explosive installations of collecting warehouses, it solves the problem of back powder scattered and leakage during the explosive filling process, and realizes efficient return recycling and recycling and recycling Convenient operation.
Patent Information
- Application Number
- CN202420003271.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The existing explosive refill recovery device still has some refills and leaks when loading explosives, and it is inconvenient to operate, making it difficult to effectively refill the refill.
Designed a secure recovery device including telescopic legs, locking mechanisms, supporting rods, and explosive installations for collecting warehouses. It uses automatic closed -closed port and flexible closed cycles to prevent the looseness and leakage of the pink. And the locking mechanism is convenient to operate.
Effectively solve the problem of looseness and leakage of the powder back in the explosive loading process, maximize recycling the powder, reduce waste and environmental pollution, and improve the convenience and safety of operation.
Smart Images
Figure CN222418802U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of blasting charge return powder recovery, and in particular relates to a safe recovery device for explosive charge return powder. Background Art
[0002] In underground mining activities, the current mainstream mining design is mainly based on upward fan-shaped deep holes, especially in large-scale mining, the bottom cutting and pulling of the mine room or the stope is almost mainly based on the upward deep hole mode. Therefore, when loading powdered explosives into the blasthole (also called the charge hole), the drug delivery tube is first lifted up and sent to the end of the blasthole, and the powder is filled from top to bottom, and the drug delivery tube is gradually pulled out until the explosives are filled to the designed position. Since the fan-shaped blastholes are mostly upward drilling, their orifices are inclined downward, so when loading explosives, there will be more or less "powder return" phenomenon, and the powder return rate is generally about 5% to 10%. If these "returned powders" are not cleaned and recycled in time, it will not only cause a lot of waste and environmental pollution, but also increase production costs. However, if the returned powder is recycled when it has fallen on the ground of the tunnel, it will be difficult to recycle these "returned powders" because the ground of the tunnel is uneven. Moreover, since the operator is standing below the blasthole when working, when the deep hole loader is started, the powdered explosive is sent into the blasthole through the drug delivery pipe by high-pressure wind, and the loading position inside the blasthole cannot be seen, and can only be judged by experience and the return of explosives, that is, the explosives are flushed out of the hole. Since the operator is standing near the bottom of the hole, the returned explosives will directly scatter onto the arms and other parts of the person, and the rest will be scattered on the ground. Explosives are irritating to human skin and cause itching, which is not conducive to occupational hygiene and health.
[0003] In order to solve the above problems, ordinary plastic film is usually used to temporarily block a part of the space at the opening of the blasthole to prevent powder from scattering, but this operation is more troublesome and cannot effectively prevent powder from scattering. A more prominent solution is a recovery device for explosive powder return disclosed in a Chinese patent with authorization announcement number CN201413093, which consists of a lifting support tube and a powder receiving bag. The lifting support tube includes an upper support tube, a lower support tube, a base, a lifting adjustment device, and a cross bar; the lifting adjustment device adopts a lock ring structure, or a spring structure, or a four-link structure; the base is fixedly connected to the lower end of the lower support tube, and the cross bar is vertically connected to the upper end of the upper support tube and can slide relative to the upper support tube; the anti-static conical powder receiving bag is hung on the cross bar. The usage process of the device is as follows: when the blasthole is drilled and ready to be loaded with explosives, the device is placed in the tunnel, the bag mouth of the charge receiving bag is aligned with and close to the hole mouth, the lifting and adjusting device is adjusted to make the top of the upper support tube close to the top of the tunnel, and the charging pipe loads the explosives into the blasthole through the reserved charging hole of the charge receiving bag, and the fallen "return powder" is received by the charge receiving bag.
[0004] Since the device adopts a lifting and adjusting device, and the cross bar can move relative to the upper supporting bar, the powder receiving bag can be adjusted to align with and close to the opening of the powder hole, and the device will not move when loading explosives, so the "returned powder" when loading explosives basically all falls into the powder receiving bag, avoiding the waste and environmental pollution caused by loading explosives, which not only reduces production costs but also eliminates safety hazards.
[0005] Although the powder recovery device has effectively solved the problem of powder recovery during the explosives filling process, there are still some problems: first, the charging tube charges the blast hole with explosives from the charging reserved hole of the charging bag. After the charging is completed, some explosive powder will be taken out when the charging tube is pulled out, and some explosives will leak out of the reserved hole, resulting in a small amount of explosives scattering; secondly, the charging bag is connected to the cross bar and is close to the hole mouth through the cross bar. It does not take into account that when the rock surface at the hole mouth is uneven, the charging bag cannot fit well with the hole mouth, and there is a large gap; moreover, because only one end of the cross bar is connected to the support rod, the stability is not good. The qualitative properties are poor. During the charging process, the cross bar is easily deformed due to the force on the cross bar and the charge bag, causing the charge bag to detach from the charge hole, further increasing the gap between the charge bag and the rock surface. When loading explosives, due to the existence of air pressure, part of the explosive powder will leak out from the gap between the charge bag and the rock surface, and some explosives will still be scattered. Thirdly, since the charge bag is connected to the cross bar, when the charge reaches a certain amount, it needs to be dumped to take out the powder. However, the space in the on-site tunnel is narrow, and the dumping operation is inconvenient. The powder dumping process will inevitably cause secondary scattering of the powder, which is not convenient for collecting the powder. Utility Model Content
[0006] In view of the shortcomings of the prior art, the utility model provides a safe recovery device for powder returned during explosive filling, which solves the problem that although the prior art effectively solves the problem of powder returned during explosive filling, there are still problems such as some powder returned from explosives scattering and leaking, and the device is difficult to operate.
[0007] In order to solve the above technical problems, the utility model provides the following core technical solutions: including retractable legs, locking mechanisms, support rods, and collection bins, the retractable legs are fixed in length by the locking mechanisms, the number of support rods is greater than 1 and connected to the retractable legs, the collection bin is firmly supported by the support rods, there is an opening on the wall of the collection bin, the opening on the wall of the collection bin is an automatic closing opening, and the automatic closing opening is automatically closed by setting a closing piece and a spring piece inside; the automatic closing opening is provided with a closing piece and a spring piece inside, the closing piece covers the inner side of the opening on the wall of the collection bin, and the closing piece is fixedly connected to the inner side of the wall of the collection bin through the spring piece; when the closing piece is subjected to force, the spring piece bends to open the closing piece; when the closing piece is not subjected to force, the closing piece is closed under the action of the spring piece to achieve automatic closure. When the drug delivery tube passes through the closing opening, the closing piece is immediately pushed open and the spring piece behind the closing piece is compressed. When the drug delivery tube is withdrawn and leaves the closing opening, the closing piece is immediately flipped back to its original position under the rebound force of the spring piece, completing the closing action, and preventing the drug powder in the drug hole from being taken out by the drug delivery tube and causing leakage.
[0008] The utility model has the advantages of convenient and reliable operation, which not only effectively solves the problem of powder recovery during explosive filling, but also avoids the scattering and leakage of the returned powder to the greatest extent, effectively avoids the waste and environmental pollution caused by explosive filling, and eliminates safety hazards.
[0009] Furthermore, based on the above core technical solution, the retractable legs are made of copper alloy, which can effectively prevent static electricity. The retractable legs are retracted in three sections, with a maximum diameter of 50mm and a retractable length range of 1 to 3 meters. They are not only highly firm, but also can adapt well to the height required on site.
[0010] Furthermore, based on the above core technical solution, the locking mechanism is a hand-turned lock buckle, which is easy to operate and can be fixed at any time when adjusting the length of the telescopic leg. The locking mechanism can also be other structures such as bolts, and its main function is to fix the telescopic leg to a height that can adapt to the needs of the site.
[0011] Furthermore, based on the above core technical solution, the number of the support rods is 3, and the support rods are supporting components that connect and fix the collecting bin and provide a three-dimensional space for the collecting bin. Three support rods are used to form a triangular support, which can more stably support the collecting bin. The structure is simple and uses less materials, but it is relatively stable and not easy to deform.
[0012] Furthermore, based on the above core technical solution, the collecting bin is in an irregular funnel shape, the bin wall with the automatic closing mouth is tilted downward by 60 degrees, and the bin wall on the other side is tilted downward by 80 degrees, and the lower end converges to form a "trumpet mouth" shape; the upper mouth is larger than the medicine hole opening, which is conducive to collecting the returned powder, and the bin wall with the automatic closing mouth is tilted downward by 60 degrees to facilitate the insertion of the charging tube. The automatic closing mouth can be in approximately the same vertical position as the medicine hole opening, so it is more convenient to insert the charging tube and then continue to insert the medicine hole.
[0013] Furthermore, based on the above core technical solution, a collecting bag is fixedly connected to the lower end of the collecting bin, and the lower end of the collecting bin is communicated with the collecting bag. The collecting bag is detachable and has a volume of not less than 15 liters. It can accommodate the returned powder of a single blast hole with a diameter of 80 mm and a depth of less than 15 m. The returned powder rate is calculated at a maximum of 10%. When a large amount of returned powder is collected in the collecting bag, the collecting bag can be removed to facilitate the pouring out of the collected explosive powder.
[0014] Furthermore, based on the above core technical solution, the support rod is connected to the retractable leg through a locking disk, the locking disk carries the support rod and the collection bin, and the locking disk is connected to the retractable leg through bolts, which can be disassembled for easy storage and transportation.
[0015] Furthermore, based on the above core technical solution, the upper opening of the collecting bin is fixedly connected to a flexible closing ring, and the material of the flexible closing ring is flexible rubber, or other anti-static flexible materials; when the rock surface at the opening of the blasthole is uneven, the flexible closing ring can compensate for the gap at the joint to a certain extent, but it cannot be completely sealed, so that the air in the blasthole can be released when loading explosives.
[0016] The explosives filling and returning powder safety recovery device provides a solution to the problems arising from blasting practice. To ensure the inherent safety of the device, the above-mentioned accessories should be made of copper alloy or anti-static materials to prevent the explosives from exploding due to sparks or static electricity generated by collision during use.
[0017] The explosive filling powder safety recovery device adopts multiple support rods to firmly support the collection bin and the design of automatic closing mouth. On the one hand, it can avoid the waste and pollution caused by the scattering and leakage of the collected explosive powder to the greatest extent, and eliminate the safety hazards caused by the accumulation of powder on the ground; on the other hand, it can prevent the powder from being scattered on the body of the blasting workers, protecting their occupational health. Moreover, the operation process is convenient and reliable, eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0019] Figure 1 This is a schematic diagram of the first embodiment of the present utility model;
[0020] Figure 2 It is a schematic diagram of the automatic closing mouth in the first embodiment of the utility model.
[0021] Figure 3 This is a schematic diagram of the working principle of the first embodiment of the utility model
[0022] In the figure: 1. retractable legs; 2. locking mechanism; 3. support rod; 4. collection bin; 5. automatic closing mouth; 51. closing piece; 52. spring piece; 6. collection bag; 7. locking plate; 8. flexible closing ring. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.
[0024] Embodiment 1:
[0025] like Figure 1 The device for safely recovering powder returned from explosive filling shown in the figure comprises a retractable leg 1, a locking mechanism 2, a support rod 3, and a collection bin 4. The retractable leg 1 is made of copper alloy, which can effectively prevent static electricity. The retractable leg 1 is retracted in three sections, with a maximum diameter of 50 mm and a retractable length range of 1 to 3 meters. It not only has high firmness, but also can adapt well to the height required on site. The retractable leg 1 is fixed in length by the locking mechanism 2. The locking mechanism 2 is a hand-twisted lock buckle, which is relatively easy to operate and can be fixed at any time when adjusting the length of the retractable leg 1. The main function is to fix the retractable leg 1 to a height that can adapt to the needs of the site.
[0026] There are three support rods 3 connected to the telescopic legs 1. The support rods 3 are supporting components that connect and fix the collection bin 4, firmly support the collection bin 4, and provide a three-dimensional space for the collection bin 4. Three support rods 3 are used to form a triangular support, which can more firmly support the collection bin 4. The structure is simple, the material is less, but it is relatively stable and not easy to deform. The support rod 3 is connected to the telescopic legs 1 through a locking plate 7, and the locking plate 7 carries the support rod 3 and the collection bin 4. The locking plate 7 is connected to the telescopic legs 1 through bolts and can be disassembled for easy storage and transportation.
[0027] The collecting bin 4 is fixedly supported by the supporting rod 3, and there is an opening on the wall of the collecting bin 4, and the opening on the wall of the collecting bin 4 is an automatic closing opening 5. Figure 2The automatic closing mouth 5 shown is automatically closed by arranging a closing piece 51 and a spring piece 52 inside; the automatic closing mouth 5 is provided with a closing piece 51 and a spring piece 52 inside, the closing piece 51 covers the inner side of the opening on the wall of the collecting bin 4, and the closing piece 51 is fixedly connected to the inner side of the wall of the collecting bin 4 through the spring piece 52; when the closing piece 51 is subjected to force, the spring piece 52 bends to open the closing piece 51; when the closing piece 51 is not subjected to force, the closing piece 51 is closed under the action of the spring piece 52; when the drug delivery tube passes through the closing mouth, the closing piece 51 is immediately pushed open and the spring piece 52 behind the closing piece 51 is compressed; when the drug delivery tube is withdrawn and leaves the closing mouth, the closing piece 51 is immediately flipped back to its original position under the rebound force of the spring piece 52, completing the sealing action to prevent the powder in the medicine hole from being brought out by the drug delivery tube and causing leakage.
[0028] The collecting bin 4 is in an irregular funnel shape, with the bin wall with the automatic closing mouth 5 tilted downward by 60 degrees, and the bin wall on the other side tilted downward by 80 degrees, forming a "trumpet mouth" shape at the lower end; the upper mouth is larger than the medicine hole opening, which is conducive to collecting the returned powder. The bin wall with the automatic closing mouth 5 tilts downward by 60 degrees to facilitate the insertion of the charging tube. The automatic closing mouth 5 can be in approximately the same vertical position as the medicine hole opening. It is more convenient to insert the charging tube and then continue to insert the medicine hole.
[0029] A collecting bag 6 is also fixedly connected to the lower end of the collecting bin 4. The lower end of the collecting bin 4 is communicated with the collecting bag 6. The collecting bag 6 is detachable and has a volume of not less than 15 liters. It can accommodate the returned powder of a single blast hole with a diameter of 80 mm and a depth of less than 15 m. The returned powder rate is calculated at a maximum of 10%. When a large amount of returned powder is collected in the collecting bag 6, the collecting bag 6 can be removed to facilitate pouring out the collected explosive powder.
[0030] The upper opening of the collecting bin 4 is fixedly connected to the flexible sealing ring 8, and the material of the flexible sealing ring 8 is flexible rubber, and it can also be other anti-static flexible materials; when the rock surface at the opening of the blasthole is uneven, the flexible sealing ring 8 can compensate for the gap at the joint to a certain extent, but it cannot be completely sealed, so that the air in the blasthole can be discharged when loading explosives.
[0031] The explosives filling and returning powder safety recovery device provides a solution to the problems arising from blasting practice. To ensure the inherent safety of the device, the above-mentioned accessories should be made of copper alloy or anti-static materials to prevent the explosives from exploding due to sparks or static electricity generated by collision during use.
[0032] Embodiment 2:
[0033] A safe recovery device for powder return from explosive filling, comprising a retractable leg 1, a locking mechanism 2, a support rod 3, and a collection bin 4. The retractable leg 1 is made of copper alloy, which can effectively prevent static electricity. The retractable leg 1 is retracted in three sections, with a maximum diameter of 50 mm and a retractable length range of 1 to 3 meters. It not only has high firmness, but also can well adapt to the height required on site. The retractable leg 1 is fixed in length by a locking mechanism 2. The locking mechanism 2 is a bolt, which is relatively easy to operate and can be fixed at any time when adjusting the length of the retractable leg 1. The main function is to fix the retractable leg 1 to a height that can adapt to the needs of the site.
[0034] There are four support rods 3 connected to the retractable legs 1. The support rods 3 are support components that connect and fix the collecting bin 4, firmly supporting the collecting bin 4 and providing a three-dimensional space for the collecting bin 4. Using four support rods 3 can more firmly support the collecting bin 4 and prevent it from being deformed.
[0035] The collecting bin 4 is fixedly supported by the supporting rod 3, and there is an opening on the wall of the collecting bin 4, and the opening on the wall of the collecting bin 4 is an automatic closing opening 5. Figure 2 The automatic closing mouth 5 shown is automatically closed by arranging a closing piece 51 and a spring piece 52 inside; the automatic closing mouth 5 is provided with a closing piece 51 and a spring piece 52 inside, the closing piece 51 covers the inner side of the opening on the wall of the collecting bin 4, and the closing piece 51 is fixedly connected to the inner side of the wall of the collecting bin 4 through the spring piece 52; when the closing piece 51 is subjected to force, the spring piece 52 bends to open the closing piece 51; when the closing piece 51 is not subjected to force, the closing piece 51 is closed under the action of the spring piece 52; when the drug delivery tube passes through the closing mouth, the closing piece 51 is immediately pushed open and the spring piece 52 behind the closing piece 51 is compressed; when the drug delivery tube is withdrawn and leaves the closing mouth, the closing piece 51 is immediately flipped back to its original position under the rebound force of the spring piece 52, completing the sealing action to prevent the powder in the medicine hole from being brought out by the drug delivery tube and causing leakage.
[0036] The collecting bin 4 is in an irregular funnel shape, with the bin wall with the automatic closing mouth 5 tilted downward by 60 degrees, and the bin wall on the other side tilted downward by 80 degrees, forming a "trumpet mouth" shape at the lower end; the upper mouth is larger than the medicine hole opening, which is conducive to collecting the returned powder. The bin wall with the automatic closing mouth 5 tilts downward by 60 degrees to facilitate the insertion of the charging tube. The automatic closing mouth 5 can be in approximately the same vertical position as the medicine hole opening. It is more convenient to insert the charging tube and then continue to insert the medicine hole.
[0037] A collecting bag 6 is also fixedly connected to the lower end of the collecting bin 4. The lower end of the collecting bin 4 is communicated with the collecting bag 6. The collecting bag 6 is detachable and has a volume of not less than 15 liters. It can accommodate the returned powder of a single blast hole with a diameter of 80 mm and a depth of less than 15 m. The returned powder rate is calculated at a maximum of 10%. When a large amount of returned powder is collected in the collecting bag 6, the collecting bag 6 can be removed to facilitate pouring out the collected explosive powder.
[0038] The explosives filling and returning powder safety recovery device provides a solution to the problems arising from blasting practice. To ensure the inherent safety of the device, the above-mentioned accessories should be made of copper alloy or anti-static materials to prevent the explosives from exploding due to sparks or static electricity generated by collision during use.
[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A safe recovery device for explosive powder filling, comprising a telescopic leg (1), a locking mechanism (2), a support rod (3), and a collection bin (4), wherein the telescopic leg (1) is fixed in length by the locking mechanism (2), the support rod (3) is fixedly connected to the telescopic leg (1), the collection bin (4) is fixedly supported by the support rod (3), and the collection bin (4) has an opening on its wall, characterized in that: The number of the support rods (3) is greater than one, and the support rods (3) stably support the collection bin (4); the opening on the bin wall of the collection bin (4) is an automatically closed opening (5); a closing piece (51) and a spring piece (52) are arranged inside the automatically closed opening (5); the closing piece (51) covers the inner side of the opening on the bin wall of the collection bin (4); the closing piece (51) is fixedly connected to the inner side of the bin wall of the collection bin (4) via the spring piece (52); when the closing piece (51) is subjected to force, the spring piece (52) bends to open the closing piece (51); when the closing piece (51) is not subjected to force, the closing piece (51) is closed under the action of the spring piece (52).
2. The explosive filling powder safety recovery device according to claim 1, characterized in that: The telescopic legs (1) are made of copper alloy, are telescopic in three sections, have a maximum diameter of 50 mm, and a telescopic length range of 1 to 3 meters.
3. The explosive filling powder safety recovery device according to claim 1, characterized in that: The locking mechanism (2) is a hand-turned lock.
4. The explosive filling powder safety recovery device according to claim 1, characterized in that: The number of the support rods (3) is 3.
5. The explosive filling powder safety recovery device according to claim 1, characterized in that: The collecting bin (4) is in an irregular funnel shape, with the bin wall having the automatic closing mouth (5) tilted downward by 60 degrees, and the bin wall on the other side tilted downward by 80 degrees, with the lower end converging to form a "trumpet mouth" shape.
6. The explosive filling powder safety recovery device according to claim 1, characterized in that: The lower end of the collecting bin (4) is also fixedly connected to a collecting bag (6), the lower end of the collecting bin (4) is in communication with the collecting bag (6), and the collecting bag (6) is detachable and has a volume of not less than 15 liters.
7. The explosive filling powder safety recovery device according to claim 1, characterized in that: The support rod (3) is connected to the telescopic leg (1) via a locking plate (7); the locking plate (7) carries the support rod (3) and the collecting bin (4); and the locking plate (7) is connected to the telescopic leg (1) via bolts.
8. The explosive filling powder safety recovery device according to claim 1, characterized in that: The upper opening of the collecting bin (4) is fixedly connected to a flexible closed ring (8), and the material of the flexible closed ring (8) is flexible rubber.