Explosive charging device for perforation blasting of surface metal mine

Abstract

An open-pit metal mine perforation blasting charging device relates to the technical field of open-pit mine mining and comprises a feeding barrel, a tripod assembly and a discharging pipe, the upper end opening of the feeding barrel is sleeved with a drawing rope type sealing bag, the bottom of the feeding barrel is fixed to the tripod assembly, the tripod assembly comprises a base, tripod legs and two screw thread flange plates, and the base is provided with a plurality of screw thread flange plates. A base is fixed to the upper portions of the triangular frame legs, the two screw thread flange plates are the same in structure, each screw thread flange plate is in a T shape and comprises a vertical thread section and a flange plate which are integrally arranged, the discharging pipe is a telescopic corrugated pipe, and internal threads are arranged on the inner wall of the upper end of the discharging pipe. The blanking pipe is fixed on the vertical thread section of the screw thread flange plate positioned at the lower part through an internal thread on the inner wall of the upper end of the blanking pipe; the portable mobile device is simple in structure and convenient to move, and all the parts are detachably connected, so that carrying, assembling and disassembling are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to open -pit mining technical field especially is related to a kind of open -pit metal mine perforating blasting charging device. BACKGROUND

[0002] It is known that blasting is the most extensive and effective mining method in the process of open-pit mining, and the blasting process is first to clean up and level the open-pit step blasting area, then to drill holes and perform perforating operation, and finally to charge and blast according to the blasting design; when charging, the operator needs to carry the explosive to the blasting site and pour it into the blast hole.

[0003] The explosive is directly poured into the blast hole, and this way of filling explosive will cause waste of explosive, and pouring explosive will also stir up explosive dust, which will harm human health if inhaled, and the scattering of explosive dust in the air will pose a safety hazard.

[0004] The existing open-pit metal mine perforating blasting charging device is large in size, and is generally transported by manpower or trolley, and in the case of uneven blasting area and interval charging, the existing charging device is difficult to move and operate, which delays the operation time. SUMMARY

[0005] In order to overcome the deficiencies in the background art, the utility model discloses an open-pit metal mine perforating blasting charging device.

[0006] In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

[0007] An open-pit metal mine perforating blasting charging device, comprising a feeding bucket, a tripod assembly and a discharge pipe, a drawstring type sealing bag is sleeved on the upper end of the feeding bucket, the bottom of the feeding bucket is fixed on the tripod assembly, the tripod assembly comprises a base, a tripod leg and two screw flanges, the upper part of the tripod leg is fixed with the base, the two screw flanges are the same structure and are both set as T shape, comprising an integrally arranged vertical threaded segment and a flange, four screw holes are uniformly distributed on the flange, the two flanges are fixedly connected by screws in the same direction in the two screw holes, the vertical threaded segment of the lower screw flange is arranged in the circular hole in the center of the base, the screws in the screw holes in the other direction of the two flanges are fixedly connected with the screw holes in the base, and the discharge pipe is a telescopic corrugated pipe, an internal thread is arranged on the inner wall of the upper end of the discharge pipe, and the discharge pipe is fixed on the vertical threaded segment of the lower screw flange through the internal thread on the upper end inner wall.

[0008] The feeding barrel comprises a cylindrical barrel section, a tapered section with a large upper part and a small lower part and a connecting section arranged integrally from top to bottom, the middle part of the connecting section is hollow and is in communication with the cylindrical barrel section and the tapered section, and the lower part of the connecting section is fixed in the inner hole of the vertical threaded section of the upper screw flange.

[0009] The perforating and blasting charging device for open-pit metal mines is provided with a flow meter fixed on the connecting section.

[0010] The perforating and blasting charging device for open-pit metal mines is provided with adjustable telescopic legs.

[0011] Thanks to the above technical scheme, the perforating and blasting charging device for open-pit metal mines has the following beneficial effects:

[0012] The perforating and blasting charging device for open-pit metal mines is provided with adjustable telescopic legs, is suitable for uneven ground, and when discharging, the discharging pipe is elongated until the pipe is in the blast hole, and the discharging pipe is fastened by the rope-pulling type sealing bag, so that dust is prevented from being discharged during continuous charging; meanwhile, the filling amount of the explosive can be accurately displayed by the flow meter, so that the amount of the explosive is accurately controlled, and the blasting effect is improved; when the charging mode is interval charging, the discharging pipe is retracted when the filling amount of the explosive reaches the design requirement, so that other fillers are put into the blast hole, and the operation of elongating and retracting the discharging pipe can be repeated; the perforating and blasting charging device for open-pit metal mines has simple structure, is convenient to move, and is connected in a detachable mode, so that the device is convenient to carry and assemble and disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a structural schematic view of the utility model.

[0014] Fig. 2 is a structural schematic view of the installation of two screw flanges of the utility model.

[0015] Fig. 3 is a structural schematic view of the tripod legs and the base of the utility model.

[0016] In the drawing: 1, rope-pulling type sealing bag; 2, feeding barrel; 3, flow meter; 4, screw flange; 5, base; 6, tripod leg; 7, discharging pipe. DETAILED DESCRIPTION

[0017] The utility model can be explained in detail through the following embodiments, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0018] The utility model is combined with the drawings Figs. 1-3The open-air metal mine perforating blasting charging device comprises a feeding barrel 2, a tripod assembly and a discharging pipe 7, an extracted rope type sealing bag 1 is sleeved on the upper end of the feeding barrel 2, the extracted rope type sealing bag 1 can freely adjust the size of the bag and is sealed through the extracted rope, the bottom of the feeding barrel 2 is fixed on the tripod assembly, the tripod assembly comprises a base 5, a tripod leg 6 and two screw flanges 4, the upper part of the tripod leg 6 is fixed with the base 5, the two screw flanges 4 are the same in structure and are arranged in T shape and comprise an integral vertical threaded section and a flange, four screw holes are uniformly distributed on the flange, the two screw flanges are fixedly connected through the screws in the two screw holes in the same direction, the vertical threaded section of the lower screw flange 4 is arranged in the round hole in the center of the base 5, and the screws in the screw holes in the other direction of the two flanges are fixedly connected with the screw holes in the base 5, the discharging pipe 7 is a telescopic corrugated pipe, the inner thread is arranged on the inner wall of the upper end of the discharging pipe 7, and the discharging pipe 7 is fixed on the vertical threaded section of the lower screw flange 4 through the inner thread on the upper end inner wall, the feeding barrel 2 comprises an integral cylindrical barrel section, an upper-large-and-lower-small conical section and a connecting section from top to bottom, the middle part of the connecting section is hollowly arranged and is in communication with the cylindrical barrel section and the conical section, and the lower part of the connecting section is fixed in the inner hole of the vertical threaded section of the upper screw flange 4.

[0019] Further, the flow meter 3 is fixed on the connecting section, and the explosive amount can be monitored in real time.

[0020] Further, the tripod leg 6 is arranged as an adjustable telescopic leg.

[0021] The open-air metal mine perforating blasting charging device is used as follows: before use, the tripod assembly, the feeding barrel 2 and the discharging pipe 7 are assembled and connected, the extracted rope type sealing bag 1 is sleeved in the feeding barrel 2, and the bottom end of the extracted rope type sealing bag 1 is in an open state; the assembled device is arranged above the blast hole, the uneven site can be adapted by adjusting the tripod leg 6; since the discharging pipe 7 is a telescopic corrugated pipe, during discharging, the discharging pipe 7 at the lower part of the tripod assembly is elongated into the blast hole, the discharging pipe of the mixed explosive charging vehicle is arranged in the feeding barrel 2 above the tripod assembly, the discharging pipe is fastened through the extracted rope type sealing bag 1, dust is prevented from being discharged in the continuous charging process, explosive waste and safety hazards are avoided, the filling amount of the explosive can be accurately displayed through the flow meter 3 at the lower part of the feeding barrel 2, the explosive amount is accurately controlled, and the blasting effect is improved; if the charging mode is interval charging, when the explosive filling amount reaches the design requirement, the discharging pipe 7 can be retracted, the discharging pipe 7 is separated from the discharging pipe, other fillers are arranged in the blast hole, the interval charging operation of the explosive and the fillers can be realized by elongating the discharging pipe 7 again when the explosive needs to be charged again; after the operation is completed, the device can be carried after being disassembled.

[0022] The part not described in the utility model is the prior art.

[0023] For the purpose of disclosing the invention of the present application, the embodiments selected in this document are currently considered appropriate, but it should be understood that the present application is intended to include all changes and improvements of the embodiments within the scope of the present concept and application.

Claims

1. A device for charging explosives by perforating blasting in open-pit metal mines, comprising a feed barrel, a tripod assembly, and a discharge pipe, characterized by: A drawstring sealing bag is sleeved on the upper port of the feed barrel, and the bottom of the feed barrel is fixed on the tripod assembly. The tripod assembly includes a base, tripod legs and two threaded flanges. The base is fixed on the upper part of the tripod legs. The two threaded flanges have the same structure and are both arranged in a T shape, including an integral vertical threaded section and a flange. There are four threaded holes on the flange. The two flanges are fixedly connected by screws in the two threaded holes in the same direction. The vertical threaded section of the threaded flange at the lower part is passed through the circular hole in the center of the base. The screws in the threaded holes in the other direction of the two flanges are fixedly connected to the screw holes on the base. The discharge pipe is a telescopic bellows. An internal thread is provided on the inner wall of the upper end of the discharge pipe. The discharge pipe is fixed to the vertical threaded section of the threaded flange at the lower part through the internal thread on the inner wall of the upper end.

2. The open-pit metal mine perforation blasting charging device according to claim 1 is characterized in that: The feed barrel includes a cylindrical barrel section, a conical section that is larger at the top and smaller at the bottom, and a connecting section that are integrally arranged from top to bottom. The middle part of the connecting section is hollow and connected to the cylindrical barrel section and the conical section. The lower part of the connecting section is fixed in the inner hole of the vertical threaded section located on the upper threaded flange.

3. The open-pit metal mine perforation blasting charging device according to claim 2, characterized in that: A flow meter is fixed on the connecting section.

4. The open-pit metal mine perforation blasting charging device according to claim 1, characterized in that: The tripod legs are adjustable and telescopic.

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