Gas blasting mining device

Abstract

The utility model relates to a gas blasting mining device, which belongs to the technical field of ore body rock blasting mining devices, and comprises a protective bag, a paper block, a gas filling pipe, a detonating lead and an exhaust pipe, one end of the protective bag is a closed end, and the other end of the protective bag is a necking end; the paper block comprises a plurality of pieces of first roll paper and second roll paper which are alternately inserted in the protective bag, and the lengths of the plurality of pieces of first roll paper are greater than those of the plurality of pieces of second roll paper; one end of the inflation tube sequentially penetrates through the first roll paper and the second roll paper, a plurality of inflation holes are formed in the corresponding tube wall of the inflation tube, and the other end of the inflation tube penetrates out of the necking end in a sealed mode. According to the utility model, the plurality of pieces of first roll paper and the plurality of pieces of second roll paper are alternately inserted into the protection bag, and then the inflation tube sequentially penetrates through the plurality of pieces of first roll paper and the plurality of pieces of second roll paper, so that the length of a paper block can be increased, the assembly time can be shortened, bending transportation of a blasting mining device is facilitated, filling gaps are increased, and the filling amount of a liquid bag of the protection bag is increased; the ecological environment is protected, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ore body rock blasting mining device, especially relates to a gas blasting mining device. BACKGROUND

[0002] Mine exploitation technology refers to the exploitation technology of natural mineral resources with value by artificial or mechanical. According to the different depth of ore deposit and the requirement of technical and economic rationality, mine exploitation technology is divided into open-pit mining and underground mining. The part close to the surface and buried shallowly adopts open-pit mining, and the deep part adopts underground mining.

[0003] Open-pit mining is a mining method that uses mining equipment to strip rock and extract useful minerals in a mountain or concave manner under the condition of exposure. Compared with underground mining, open-pit mining has many advantages, such as fast construction speed, high labor productivity, low cost, good labor conditions, work safety, high ore recovery rate, and small dilution loss. Especially with the development of large-scale and efficient open-pit mining and transportation equipment, open-pit mining will be more widely used.

[0004] Blasting mining technology is often used in mine exploitation, and the rock aggregate is stripped in a ladder form. The purpose of blasting mining is to blast qualified size of stone, and the explosive energy will cause the rock in the near zone of the blast hole to be crushed. Explosive itself is a dangerous product, which is inconvenient to store and needs approval process. The blasting process causes environmental pollution, which is not conducive to environmental protection.

[0005] In order to solve the above technical problems, various gas mining blasting devices have been developed, such as a novel patent with the patent number CN222615337U and the name of a gas conversion air energy blasting mining device. In the patent, the inflating pipe can introduce the external combustion-supporting liquid oxygen into the protective bag, and dilute it with paper blocks, so that the paper blocks and the interior of the protective bag are rich in oxygen. The ignition head on the detonating lead generates sparks by passing electricity, ignites the paper blocks instantaneously, and produces an explosion effect. Compared with traditional explosive detonation or detonator detonation, the preparation process is safer, there is no smoke after detonation, the pollution to the environment is reduced, the preparation is simpler, and there is no strict approval process, so the construction efficiency is high.

[0006] However, when assembling the protective bag, the multiple paper blocks and the inflating pipe, since the protective bag, the multiple paper blocks and the inflating pipe are all soft structures, it is difficult to assemble the protective bag, the multiple paper blocks and the inflating pipe, which affects the assembly efficiency. In addition, the Dewar flask fills liquid oxygen into the protective bag through the inflating pipe. Since the protective bag is a non-transparent structure, it is not clear whether the liquid oxygen is filled into the protective bag, which affects the explosion effect.

[0007] Therefore, how to design a blasting mining device which protects the environment, is easy to assemble, safe to use and can detect whether the liquid oxygen is full is a problem that the person skilled in the art needs to solve urgently. Content of the utility model

[0008] The utility model provides a gas blasting mining device, solves the technical problem that the prior art blasting mining device is difficult to assemble and liquid oxygen filling amount cannot be detected.

[0009] The utility model solves the technical problems above technical scheme as follows, a kind of gas blasting mining device is installed on the borehole of ore body rock, comprising: cylindrical protective bag, paper block, inflatable tube, detonating fuse and exhaust pipe,

[0010] The protective bag is inserted into the borehole and the end corresponding to the borehole bottom is a closed end, and the end corresponding to the borehole orifice is a necked end;

[0011] The paper block includes a plurality of first paper rolls and a plurality of second paper rolls, the plurality of first paper rolls and the plurality of second paper rolls are staggered in the protective bag, and each of them is provided with a perforation, the length of the plurality of first paper rolls is greater than the length of the plurality of second paper rolls;

[0012] One end of the inflatable tube is a closed end, and the closed end sequentially passes through a plurality of perforations, the inflatable tube is provided with a plurality of inflation holes on the pipe wall corresponding to the plurality of first paper rolls and the plurality of second paper rolls, and the other end of the inflatable tube is sealed and passes out of the necked end of the protective bag;

[0013] One end of the detonating fuse is inserted into the protective bag, and the other end is sealed and passes out of the necked end of the protective bag, one end of the detonating fuse is fixed with a fire head, and the fire head is inserted into the first paper roll or the second paper roll close to the borehole bottom;

[0014] One end of the exhaust pipe is inserted into the protective bag, and the other end is sealed and passes out of the necked end of the protective bag.

[0015] The utility model discloses beneficial effect is: improve traditional gas blasting device structure, first utilize multiple first paper rolls and multiple second paper rolls staggered and inserted in the protective bag, and then utilize the inflation pipe and pass through the perforation of multiple first paper rolls and multiple second paper rolls in turn, because multiple first paper rolls length all greater than multiple second paper rolls length, can lengthen paper piece length, shorten paper piece, inflation pipe and protective bag assembly time, improve shortening paper piece, inflation pipe and protective bag assembly efficiency, can also facilitate blasting exploitation device bending (bend at shorter second paper roll) transportation, shorten the length of transport truck, improve transportation convenience, can also increase filling gap (the liquid nitrogen that flows out from the inflation hole flows out from the gap between adjacent first paper roll and second paper roll), expand protective bag liquid bag filling capacity, protect ecological environment, improve the use safety factor and explosion effect, and be widely applied to high -speed railway, mine, highway etc. Infrastructure construction scene.

[0016] On the basis of the above technical scheme, the utility model further can make the following improvement.

[0017] Further, it further includes a restraint sleeve, which is closely inserted into the protective bag and closely sleeved outside the inflation pipe, the detonating lead and the exhaust pipe.

[0018] The above further beneficial effect is: the restraint belt is closely inserted into the protective sleeve and closely sleeved outside the inflation pipe, the detonating lead and the exhaust pipe, which can improve the sealing between the inflation pipe, the detonating lead, the exhaust pipe and the protective bag.

[0019] Further, the drill hole, the protective bag, the paper block, the inflation pipe, the detonating lead and the exhaust pipe are all relatively arranged.

[0020] Further, it further includes a Dewar flask containing liquid oxygen, a liquid level meter and a pressure gauge, which are fixed on the Dewar flask and have their probes inserted into the Dewar flask; the liquid inlet end of the liquid filling hose is in communication with the liquid outlet of the Dewar flask; the liquid inlet end of the liquid filling hard pipe is in communication with the liquid outlet end of the liquid filling hose, and the liquid outlet end thereof is in parallel communication with multiple inflation pipes through a multi-way valve and a parallel pipe.

[0021] The above further beneficial effect is: first, the Dewar flask is in communication with multiple parallel communication inflation pipes, which can shorten the liquid oxygen filling time and improve the liquid oxygen filling efficiency; then, the liquid level meter and the pressure gauge are used to monitor the liquid level and pressure state in the Dewar flask in real time, which can accurately determine whether the liquid oxygen in the protective bag is full, prevent the liquid oxygen in the protective bag from being insufficiently filled, and affect the explosion effect.

[0022] Further, the diameters of the liquid filling soft tube and the liquid filling hard tube are 11.5-12.5mm, the diameter of the parallel pipe is 9.5-10.5mm, the diameter of the gas filling pipe is 7.5-8.5mm, and the diameter of the exhaust pipe is 9.5-10.5mm.

[0023] Further, the liquid filling hard tube is an aluminum tube.

[0024] The above further beneficial effects are:

[0025] 1. When the liquid oxygen filling is completed, the liquid filling hard tube is cut off by using a hand clamp, which can block the communication between the liquid filling hard tube and the liquid filling soft tube, and also can block the communication between the liquid filling hard tube and the parallel pipe;

[0026] 2. The diameters of the liquid filling hard tube and the liquid filling soft tube are greater than the diameter of the parallel pipe, and the diameter of the parallel pipe is greater than the diameter of the gas filling pipe, which can shorten the liquid filling time and improve the liquid nitrogen filling efficiency;

[0027] 3. The diameter of the exhaust pipe is greater than the diameter of the gas filling pipe, which can shorten the exhaust time (more than 10min) and reduce the blasting preparation time.

[0028] Further, it further comprises an initiator, and the initiator is in series communication with a plurality of the initiating lead wires.

[0029] The above further beneficial effects are: the gas explosion lead wire is designed as two series and interconnected lead wires, which can facilitate the series connection between multiple gas explosion lead wires.

[0030] Further, it further comprises buried soil, and the area between the necked end of the protective bag and the borehole opening is a buried area; the buried soil is tamped and buried in the buried area.

[0031] The above further beneficial effects are: the buried soil tamped and buried in the buried area can prevent the impact force generated by the gas explosion from upward impact, and improve the blasting effect of the side pushing rock.

[0032] Further, the length of the buried area is 2.8-3.2mm.

[0033] Further, it further comprises a protective cover, and the protective cover is arranged at the borehole opening.

[0034] The above further beneficial effects are: the protective cover is arranged at the borehole opening before the protective bag is inserted into the borehole, which can prevent the gravel or soil from falling into the borehole and affecting the insertion of the protective bag.

[0035] Further, it further comprises a rock chiseling tool, and the rock chiseling tool can be extended into the borehole.

[0036] The further beneficial effect is that the stone chiseling tool is inserted into the drill hole, the stone chiseling tool is reciprocated along the axial direction of the drill hole before the protective bag is inserted into the drill hole, and the rock protrusion is prevented from blocking the drill hole, thereby affecting the insertion of the protective bag into the drill hole. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 FIG. 1 is a structural schematic diagram of a gas blasting mining device according to the present application;

[0038] Figure 2 FIG. 2 is a structural schematic diagram of the gas blasting mining device after the protective bag is removed according to the present application;

[0039] Figure 3 FIG. 3 is a three-dimensional structural schematic diagram of the gas blasting mining device installed in a drill hole of a rock of a mineral body according to the present application.

[0040] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0041] 1, protective bag, 2, first paper roll, 3, second paper roll, 4, inflatable tube, 5, detonating lead, 6, exhaust pipe, 7, rock of mineral body, 8, drill hole, 9, restraint sleeve, 10, Dewar flask, 11, liquid filling hose, 12, liquid filling hard pipe, 13, buried soil. DETAILED DESCRIPTION

[0042] The principles and features of the present application are described below in combination with the drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0043] As shown in FIGS. Figure 1 and Figure 2 A gas blasting mining device is installed on a drill hole 8 of a rock 7 of a mineral body, and includes a cylindrical protective bag 1, paper blocks, an inflatable tube 4, a detonating lead 5, and an exhaust pipe 6,

[0044] The protective bag 1 is inserted into the drill hole 8, and one end corresponding to the bottom of the drill hole 8 is a closed end, and one end corresponding to the opening of the drill hole 8 is a necked end.

[0045] The paper blocks include a plurality of first paper rolls 2 and a plurality of second paper rolls 3, the plurality of first paper rolls 2 and the plurality of second paper rolls 3 are alternately inserted into the protective bag 1, and each of the plurality of first paper rolls 2 and the plurality of second paper rolls 3 is provided with a plurality of perforations, and the length of each of the plurality of first paper rolls 2 is greater than the length of each of the plurality of second paper rolls 3.

[0046] One end of the inflatable tube 4 is a closed end, and the closed end sequentially passes through the plurality of perforations, the inflatable tube 4 is provided with a plurality of inflation holes on the tube wall corresponding to the plurality of first paper rolls 2 and the plurality of second paper rolls 3, and the other end of the inflatable tube 4 is sealed and passes out of the necked end of the protective bag 1.

[0047] One end of the detonating fuse 5 penetrates into the protective bag 1 and the other end seals out of the narrow end of the protective bag 1, one end of the detonating fuse 5 is fixed with a fire head and the fire head is inserted into the first paper roll 2 or the second paper roll 3 near the hole bottom of the drill hole 8;

[0048] One end of the exhaust pipe 6 penetrates into the protective bag 1 and the other end seals out of the narrow end of the protective bag 1.

[0049] As shown in the drawings, Figure 2 In some embodiments, a restraint sleeve 9 can also be included, which is tightly inserted into the protective bag 1 and tightly sleeved outside the inflation pipe 4, the detonating fuse 5 and the exhaust pipe 6.

[0050] As shown in the drawings, Figure 3 In some embodiments, the drill hole 8, the protective bag 1, the paper block, the inflation pipe 4, the detonating fuse 5 and the exhaust pipe 6 are all relatively arranged.

[0051] As shown in the drawings, Figure 3 In some embodiments, a dewar flask 10 containing liquid oxygen, a liquid level meter, a pressure gauge, a liquid filling hose 11 and a liquid filling hard pipe 12 can also be included, the liquid level meter and the pressure gauge are both fixed on the dewar flask and their probes both extend into the dewar flask 10; the liquid inlet end of the liquid filling hose 11 communicates with the liquid outlet of the dewar flask; the liquid inlet end of the liquid filling hard pipe 12 communicates with the liquid outlet end of the liquid filling hose 11 and the liquid outlet end thereof communicates with multiple inflation pipes 4 through a multi-way valve and a parallel pipe.

[0052] As shown in the drawings, Figure 3 Specifically, the diameters of the liquid filling hose 11 and the liquid filling hard pipe 12 can both be 11.5-12.5mm, the diameter of the parallel pipe can be 9.5-10.5mm, the diameter of the inflation pipe 4 can be 7.5-8.5mm and the diameter of the exhaust pipe 6 can be 9.5-10.5mm.

[0053] Specifically, a detonator can also be included, which communicates with multiple detonating fuses 5 in series.

[0054] As shown in the drawings, Figure 3 In some embodiments, buried soil 13 can also be included, the area between the narrow end of the protective bag 1 and the hole of the drill hole 8 is a buried area; the buried soil 13 is tamped and buried in the buried area.

[0055] Specifically, the length of the buried area can be 2.8-3.2mm.

[0056] In some embodiments, a protective cover can also be included, which covers the hole of the drill hole 8.

[0057] In some embodiments, a stone chiseling tool can also be included, which can extend into the drill hole.

[0058] The above merely preferred embodiments of the present application, and not to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A gas blasting device for mining, which is installed in a borehole (8) in the rock (7) of a mineral body, characterized in that, It comprises: a cylindrical protective bag (1) which is inserted into the drill hole (8) and has a closed end corresponding to the bottom of the drill hole (8) and a necked end corresponding to the mouth of the drill hole (8); a paper block which comprises a plurality of first paper rolls (2) and a plurality of second paper rolls (3), the first paper rolls (2) and the second paper rolls (3) are alternately inserted into the protective bag (1) and each is provided with a perforation, the length of each first paper roll (2) is greater than the length of each second paper roll (3); an inflation tube (4) which has a closed end and the closed end sequentially passes through the perforations, the inflation tube (4) is provided with a plurality of inflation holes on the tube wall corresponding to the first paper rolls (2) and the second paper rolls (3), the other end of the inflation tube (4) is sealed and passes out of the necked end of the protective bag (1); an initiating fuse (5) which passes into the protective bag (1) at one end and passes out of the necked end of the protective bag (1) at the other end, one end of the initiating fuse (5) is fixed with a fire head which is inserted into the first paper roll (2) or the second paper roll (3) near the bottom of the drill hole (8); an exhaust tube (6) which is inserted into the protective bag (1) at one end and passes out of the necked end of the protective bag (1) at the other end.

2. A gas blasting apparatus as claimed in claim 1, wherein, It also comprises a restraint sleeve (9) which is tightly inserted into the protective bag (1) and tightly covers the inflation tube (4), the initiating fuse (5) and the exhaust tube (6).

3. A gas blasting apparatus as claimed in claim 1, wherein, The drill hole (8), the protective bag (1), the paper block, the inflation tube (4), the initiating fuse (5) and the exhaust tube (6) are relatively arranged.

4. A gas blasting apparatus as claimed in claim 3, wherein, It also comprises a dewar flask (10) filled with liquid oxygen, a liquid level meter and a pressure gauge, the liquid level meter and the pressure gauge are fixed on the dewar flask and their probes are inserted into the dewar flask (10); the liquid inlet end of the liquid filling hose (11) is in communication with the liquid outlet of the dewar flask; the liquid inlet end of the liquid filling hard tube (12) is in communication with the liquid outlet end of the liquid filling hose (11) and the liquid outlet end is in parallel communication with a plurality of inflation tubes (4) through a multi-way valve and a parallel tube.

5. A gas blasting apparatus as claimed in claim 4, wherein, The diameter of the liquid filling hose (11) and the liquid filling hard tube (12) is 11.5-12.5mm, the diameter of the parallel tube is 9.5-10.5mm, the diameter of the inflation tube (4) is 7.5-8.5mm and the diameter of the exhaust tube (6) is 9.5-10.5mm.

6. A gas blasting apparatus as claimed in claim 3, wherein, It also comprises an initiator which is in series communication with a plurality of initiating fuses (5).

7. A gas blasting apparatus as claimed in claim 1, wherein It also comprises buried soil (13), the area between the necked end of the protective bag (1) and the mouth of the drill hole (8) is a buried area; the buried soil (13) is tamped and buried in the buried area.

8. A gas blasting apparatus as claimed in claim 7, wherein, The length of the buried area is 2.8-3.2mm.

9. A gas blasting apparatus as claimed in claim 1, wherein, It also comprises a protective cover which covers the mouth of the drill hole (8).

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