CN212963058U - Upward blast hole blocking treatment tool for underground mining - Google Patents
Upward blast hole blocking treatment tool for underground mining Download PDFInfo
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- CN212963058U CN212963058U CN202021408517.1U CN202021408517U CN212963058U CN 212963058 U CN212963058 U CN 212963058U CN 202021408517 U CN202021408517 U CN 202021408517U CN 212963058 U CN212963058 U CN 212963058U
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Abstract
The utility model discloses a stifled processing tool of upward big gun hole card of underground mining. The tool comprises a drill bit, one or more drill rods and a drill bit shank which are sequentially connected, wherein the drill bit is pyramid-shaped and is made of a steel plate; the drill rod is of a tubular structure manufactured by welding steel pipes; the drill shank is of a U-shaped structure made of threaded steel; bolts or nuts are arranged at the lower end of the drill bit, the two ends of the drill rod and the U-shaped opening of the drill shank, and the drill bit, the drill rod and the drill shank are connected in a bolt connection mode. The blocking blast hole is processed by adopting the tool, so that the processing efficiency can be greatly improved: the time for processing the blast hole can be shortened, the success rate of processing the blast hole is improved, and the labor and labor cost are saved; and the tool has the advantages of simple structure, small volume, easy disassembly, convenient carrying, difficult deformation, safety, reliability and the like.
Description
Technical Field
The utility model relates to a big gun hole processing tool technical field especially relates to an underground mining upward blocks up processing tool of big gun hole card.
Background
Stope blasting is the most important link in mine production, and is directly related to the overall economic benefit of the whole mine, however, various factors influence the stope blasting effect and the safe operation of construction and production in the mining process. Wherein, the influence of blast hole quality to stope blasting is especially important. In particular, the blast holes of some mine stopes are deeper, the deepest depth can reach about 20m, and the situations that faults and karst caves exist among ore bodies are more. Under the influence of factors such as geological factors, ground pressure, hole wall rock breakage and blasting vibration for a long time, dislocation can occur in the blast hole, and a large amount of clogs such as broken stones can exist in the blast hole and can not fall freely, so that the blast hole is extruded in the hole, and the quality of the blast hole can not meet the blasting design requirement.
Therefore, the quality of the blast hole directly influences the overall blasting effect, and in the charging process, the detonating primer and the explosive cannot reach the designed position, so that the situation that the blasting primer and the explosive are blown down and pushed away from the suspended ceiling can be caused to occur, the ore blasting amount is reduced, the economic benefit is reduced, and meanwhile, in the process of treating the suspended ceiling of the pushed wall, the potential safety hazard of construction and production also exists greatly and the material cost is increased.
So, before the blasting powder charge, it is crucial to the stifled processing of the card of big gun hole, to the relatively poor problem of effect that the ordinary plastics tubule of tradition adoption handled the big gun hole, the utility model relates to a novel underground mining goes up to stifled processing tool of big gun hole card.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stifled processing tool of hole card on underground mining to there is the low scheduling problem of treatment efficiency in adopting ordinary plastics tubule to handle the big gun hole among the solution prior art.
The above object of the present invention is achieved by the following technical solutions:
according to one aspect of the utility model, the utility model provides an underground mining upward blast hole blocking processing tool, including the bore bit that links to each other in proper order, one or more consecutive drill rods and bore bit tail, wherein, the bore bit is the pyramid shape of making through the steel sheet; the drill rod is of a tubular structure manufactured by welding steel pipes; the drill shank is of a U-shaped structure made of threaded steel; bolts or nuts are arranged at the lower end of the drill bit, the two ends of the drill rod and the U-shaped opening of the drill shank, and the drill bit, the drill rod and the drill shank are connected in a bolt connection mode.
Preferably, a bolt is welded at the lower end of the drill bit; one end of the drill rod is welded with a nut, and the other end of the drill rod is welded with a bolt; and a nut is welded at the U-shaped opening of the drill shank, and a hole for inserting a short crowbar is formed below the nut.
Preferably, the bolt is a hexagon bolt, and the nut is a hexagon nut.
Preferably, two hexagonal nuts are vertically (vertically) welded at the U-shaped opening of the drill shank.
Preferably, the length of the drill bit is 90 mm-110 mm. More preferably, the bit has a length of 100 mm.
Preferably, the drill rod and the bolt and the nut respectively positioned at both ends of the drill rod have a total length of 500mm to 800 mm.
Preferably, the height of the drill bit shank is 60 mm-80 mm. More preferably, the shank adapter has a height of 70 mm.
Preferably, the distance between the upper surface of the nut in the drill shank and the top end of the U-shaped opening is 5-15 mm. More preferably, the upper surface of the nut in the shank is at a distance of 10mm from the top end of the U-shaped mouth.
Preferably, the thickness of the steel plate in the drill bit is 20 mm. The welded steel pipe in the drill rod is DN 15. The diameter of the deformed steel bar in the drill bit shank is 14 mm.
Compared with the prior art, the tool is used for processing the blocking blast hole, so that the processing efficiency can be greatly improved, the time for processing the blast hole can be shortened, the success rate of processing the blast hole is improved, and the labor and labor cost are saved. The utility model discloses stifled processing tool of blast hole card on underground mining simple structure, small, convenient to carry, quick detachable, non-deformable, and safe and reliable. Specifically, the following aspects are presented:
(1) the utility model discloses each part is owing to adopt steel material in this instrument, can adapt to the plug and the jam strength of all big gun holes, and non-deformable has saved the man-hour of handling the big gun hole greatly, has improved the efficiency and the success rate of handling the big gun hole to provide necessary condition for the stope blasting. Not only the blasting effect is improved, but also the situation that the stope pushes the wall and hangs the roof is greatly improved. In the whole stope blasting construction process, the safety is guaranteed.
(2) The utility model discloses this instrument is handling the big gun hole in-process, and two people just can accomplish the operation, and it needs three to four people to compare to handle the big gun hole with traditional plastics tubule, has saved manpower and cost of labor greatly.
(3) The utility model discloses this instrument is because every drill rod is shorter, and weight is lighter, and is small, when handling many route big gun holes in succession, carries also comparatively lightly, deposits and does not need big space.
Drawings
Fig. 1 is the structure schematic diagram of the upward blast hole blocking processing tool for underground mining.
In FIG. 1, 10 bits, 20 rods, 30 bits, 40 bolts, 50 nuts.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:
fig. 1 schematically shows the structure of an up-hole blocking processing tool in underground mining. As shown in figure 1, the utility model provides an underground mining upward big gun hole blocking processing tool forms through three parts connection, includes bore bit 10, drill rod 20 and bore bit shank 30 respectively.
The bit 10 is pyramid-shaped, wherein the length of the bit 10 (excluding the length of the hexagon head cap screw 40) may be 90mm to 110mm, for example, 100mm as shown in fig. 1. The drill bit 10 can be made of a steel plate with the diameter delta 20mm, and the steel plate is cut and ground to form a sharp pyramid-shaped structure.
The drill rod 20 is a tubular structure, and may be one or more, and when more, the drill rods are connected end to end in sequence. The drill rod 20 can be cut by a DN15 common welded steel tube, and can be cut into round tubes with different lengths, and the total length of the drill rod 20 after the bolt 40 and the nut 50 are welded can be about 500 mm-800 mm. As shown in fig. 1, N blast holes may be connected end to end in sequence, so as to extend the length of the tool, and facilitate the treatment of blast holes of corresponding depths.
The shank adapter 30 is of a U-shaped structure and can be made of 14 mm-diameter threaded steel with the length of about 200 mm. The shank adapter 30 may have a height of 60mm to 80mm, for example, 70mm as shown in fig. 1. The nut 50 in the drill rod 30 can be welded at a position 5 mm-15 mm away from the top end of the U-shaped opening, namely the distance between the upper surface of the nut 50 and the top end of the U-shaped opening is 5 mm-15 mm, for example, 10mm, and a certain distance is reserved between the lower surface of the nut 50 and the bottom end of the U-shaped drill rod 30 so as to insert a short crowbar conveniently. For more secure connection with the drill rod 20, two nuts 50 may be provided vertically (up and down) at the U-shaped opening, as shown in fig. 1.
The utility model discloses in, above-mentioned triplex adopts can dismantle the connected mode and connect and form, specifically, sets up bolt 40 or nut 50 in the lower extreme of bore bit 10, the both ends of drill rod 20 and the U-shaped mouth department of bore bit 30, bore bit 10, drill rod 20 and bore bit 30 adopt the bolt 40 connected mode to connect and form.
In an alternative embodiment, as shown in fig. 1, M12 × 30 hexagon bolts 40 are fully welded at the lower end of the drill bit 10; one end of the drill rod 20 is fully welded with an M12 hexagon nut 50, and the other end is fully welded with an M12 multiplied by 30 hexagon bolt 40; m12 hexagonal nut 50 is fully welded at the U-shaped opening of the drill shank 30, and a hole for inserting a short crowbar is formed below the hexagonal nut 50. The bit 10, the N shank rods 20 and the shank adapter 30 are screwed according to the depth of the blast hole.
When the concrete operation is used: firstly, a drill bit 10 is connected with a drill rod 20 and is sent into a blast hole, a plurality of drill rods 20 are connected at the tail part of the drill rod 20 along with the increase of the depth of the blast hole, after the drill rod reaches a blocking position, a drill rod tail 30 is connected, a short crowbar is inserted into a hole below a bolt 40 in the drill rod tail 30, only two persons need to repeatedly impact the tool up and down, and a blocking object is broken to form slag which slides out along the hole wall, so that the quality of the blast hole is ensured to meet the design requirement.
The utility model discloses this instrument is particularly useful for the condition that the big gun hole card is stifled serious (for example, receives the influence of factors such as geological factor, earth pressure, inner wall rock breakage and blasting vibrations and lead to), adopts this instrument to handle, can guarantee hardness and intensity, and convenient to carry uses also convenient and non-deformable more conveniently simultaneously.
When the traditional plastic thin pipe is used for processing a blast hole, three to four persons are needed to complete the operation; meanwhile, the traditional plastic thin tube is large in size, inconvenient to carry, soft and easy to deform, and does not have the function of treating hard blocking objects in the process of treating blast hole blocking. Through 100 groups of tests on plugged blast holes of a horizontal stope of a mine at-40 m and-55 m, the success rate of processing the blast hole plugging by using a traditional plastic thin tube is 56 percent, and the average processing time of each plugged hole is about 42 min; and the success rate of the tool treatment of the utility model is close to 100 percent, and the treatment time of each plugging hole is about 19 min. Can know through experimental contrast, the utility model discloses this instrument not only can improve work efficiency, save man-hour, still saved the cost of labor greatly under the prerequisite of guaranteeing safety.
Claims (10)
1. A blocking processing tool for an upward blast hole in underground mining is characterized by comprising a drill bit, one or more drill rods and a drill bit shank which are sequentially connected, wherein,
the drill bit is in a pyramid shape and is made of a steel plate;
the drill rod is of a tubular structure manufactured by welding steel pipes;
the drill shank is of a U-shaped structure made of threaded steel;
bolts or nuts are arranged at the lower end of the drill bit, the two ends of the drill rod and the U-shaped opening of the drill shank, and the drill bit, the drill rod and the drill shank are connected in a bolt connection mode.
2. The upward-facing blast hole blockage treatment tool for underground mining as claimed in claim 1,
the lower end of the drill bit is welded with a bolt;
one end of the drill rod is welded with a nut, and the other end of the drill rod is welded with a bolt;
and a nut is welded at the U-shaped opening of the drill shank, and a hole for inserting a short crowbar is formed below the nut.
3. The upward-facing blast hole blockage treatment tool for underground mining as claimed in claim 2,
the bolt is a hexagon bolt, and the nut is a hexagon nut;
two hexagonal nuts are vertically welded at the U-shaped opening of the drill shank.
4. The tool for blocking the upward blast hole in underground mining according to claim 1, wherein the length of the drill bit is 90mm to 110 mm.
5. The tool for blocking the upward blast hole in underground mining according to claim 2, wherein the total length of the drill rod and the bolt and the nut respectively provided at both ends of the drill rod is 500mm to 800 mm.
6. The tool for blocking the upward blast hole in underground mining according to claim 1, wherein the drill bit shank has a height of 60mm to 80 mm.
7. The tool of claim 1, wherein the bit has a length of 100mm and the shank has a height of 70 mm.
8. The tool for blocking the upward blast hole in underground mining according to claim 6, wherein the distance between the upper surface of the nut in the drill shank and the top end of the U-shaped opening is 5-15 mm.
9. The tool of claim 8, wherein the distance between the upper surface of the nut in the shank and the top end of the U-shaped opening is 10 mm.
10. The tool for blocking an upward blast hole in underground mining according to claim 1, wherein the thickness of the steel plate in the drill bit is 20 mm; the model of the welded steel pipe in the drill rod is DN 15; the diameter of the deformed steel bar in the drill bit shank is 14 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408517.1U CN212963058U (en) | 2020-07-16 | 2020-07-16 | Upward blast hole blocking treatment tool for underground mining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408517.1U CN212963058U (en) | 2020-07-16 | 2020-07-16 | Upward blast hole blocking treatment tool for underground mining |
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| Publication Number | Publication Date |
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| CN212963058U true CN212963058U (en) | 2021-04-13 |
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| CN202021408517.1U Active CN212963058U (en) | 2020-07-16 | 2020-07-16 | Upward blast hole blocking treatment tool for underground mining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754642A (en) * | 2022-04-26 | 2022-07-15 | 鞍钢集团矿业有限公司 | Blast hole blockage treatment device and method |
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2020
- 2020-07-16 CN CN202021408517.1U patent/CN212963058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754642A (en) * | 2022-04-26 | 2022-07-15 | 鞍钢集团矿业有限公司 | Blast hole blockage treatment device and method |
| CN114754642B (en) * | 2022-04-26 | 2023-09-15 | 鞍钢集团矿业有限公司 | Blast hole blocking treatment device and method |
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