CN111895873A - Upward blast hole charging device and working method - Google Patents

Upward blast hole charging device and working method Download PDF

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Publication number
CN111895873A
CN111895873A CN202010894822.4A CN202010894822A CN111895873A CN 111895873 A CN111895873 A CN 111895873A CN 202010894822 A CN202010894822 A CN 202010894822A CN 111895873 A CN111895873 A CN 111895873A
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China
Prior art keywords
charging
pushing
hydraulic cylinder
upward
hole
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CN202010894822.4A
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Chinese (zh)
Inventor
缪玉松
孔亮
董友雯
林杰
张颖
严仙荣
吴迪
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN202010894822.4A priority Critical patent/CN111895873A/en
Publication of CN111895873A publication Critical patent/CN111895873A/en
Withdrawn legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/10Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/006Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/18Plugs for boreholes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention relates to an upward blast hole charging device and a working method, and the upward blast hole charging device comprises a movable lifting mechanism, wherein the lifting mechanism is connected with a charging platform, the charging platform is provided with a charging mechanism and a supporting mechanism, the charging mechanism comprises a pushing piece, the bottom end of the pushing piece is hinged with a first movable seat, the first movable seat is connected with the charging platform in a sliding manner, the pushing piece is connected with a charging barrel with two open ends, the pushing part of the pushing piece can extend into the charging barrel, the supporting mechanism comprises a telescopic piece, one end of the telescopic piece is hinged with the pushing piece, the other end of the telescopic piece is hinged with a second movable seat, and the second movable seat is connected with the charging platform in a sliding manner.

Description

Upward blast hole charging device and working method
Technical Field
The invention relates to the technical field of engineering blasting, in particular to an upward blast hole charging device and a working method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the excavation of a large-section tunnel, the excavation is often carried out in a vertical upward blasting operation mode under the influence of the section height; in mining, a vertical or steeply inclined chute is usually arranged in order to facilitate the transportation of ore rocks between two mining levels, but the method of vertically blasting, tunneling and excavating upwards is also adopted due to the limitation of an operation platform and a construction period.
The present blasting generally adopts manual charging, and the inventor finds that the labor intensity is high by adopting the method, and the charging quality and the construction time are affected due to the difference of professional skills and basic quality of operators, so that the phenomena of over-excavation and under-excavation are caused, and unnecessary troubles are caused to the safety protection of tunnels and roadways, therefore, how to accurately implement the charging problem of upward blasting in the construction is always a problem to be solved urgently by blasting workers.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an upward blast hole charging device which can accurately implement upward charging, improve charging efficiency and shorten operation time.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the embodiment of the invention provides an upward blast hole charging device which comprises a movable lifting mechanism, wherein the lifting mechanism is connected with a charging platform, the charging platform is provided with a charging mechanism and a supporting mechanism, the charging mechanism comprises a pushing piece, the bottom end of the pushing piece is hinged to a first movable seat, the first movable seat is connected with the charging platform in a sliding mode, the pushing piece is connected with a charging barrel with two open ends, a pushing part of the pushing piece can extend into the charging barrel, the supporting mechanism comprises a telescopic piece, one end of the telescopic piece is hinged to the pushing piece, the other end of the telescopic piece is hinged to a second movable seat, and the second movable seat is connected with the charging platform in a sliding mode.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the pushing member employs a pushing hydraulic cylinder, a top end of a cylinder body of the pushing hydraulic cylinder is fixedly connected to the cartridge, and a piston rod of the pushing hydraulic cylinder can extend into the cartridge and is connected to a pushing plate.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, a loading opening is formed in a top end of a cylinder wall of the cartridge, a loading switch door is arranged at the loading opening, and a lead opening is formed in a bottom end of the cylinder wall of the cartridge.
In combination with the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein a blocking piece is rotatably connected to the position of the top opening of the drug container, and the blocking piece can open or close the top opening of the drug container.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, in which the cartridge is made of a transparent material, and the surface of the cartridge wall is provided with scale marks.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the telescopic part employs a supporting hydraulic cylinder, a cylinder body of the supporting hydraulic cylinder is hinged to the second moving seat, and a piston rod of the supporting hydraulic cylinder is hinged to the pushing part.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where walking wheels are disposed at bottoms of the first moving seat and the second moving seat, and the walking wheels are embedded in a sliding groove disposed in the platform and can be fixed with clamping grooves at two sides of the sliding groove by using an extrusion block made of a flexible material.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the lifting mechanism is mounted on the traveling carriage.
In combination with the first aspect, embodiments of the present invention provide one possible implementation of the first aspect, wherein the lifting mechanism is a scissor lift mechanism.
In a second aspect, an embodiment of the present invention provides a method for operating an upward hole charging device according to the first aspect: the powder charge pole of powder charge mechanism aligns the big gun hole to the cartridge case stretches into the big gun hole and sets for the distance under elevating system's effect, pushes up a work, and in pushing into the big gun hole with the cartridge case's cartridge case, the cartridge case left the big gun hole of vertical setting, packs the big gun hole of vertical setting.
The invention has the beneficial effects that:
1. according to the explosive loading device, the explosive package is pushed into the blast hole by the pushing piece, manual explosive loading is not needed, the explosive loading time is shortened, the working efficiency is improved, the labor intensity is reduced, the problem of explosive loading quality caused by the difference of professional skills and basic quality of operators is solved, and the explosive loading device is suitable for loading the upward blasting blast hole on the high step.
2. According to the powder charging device, the powder charging mechanism and the supporting mechanism are connected with the platform in a sliding mode, the powder charging mechanism is hinged to the first moving seat, the lifting mechanism is mounted on the traveling trolley, the position adjustment is flexible and convenient, the powder charging rod of the powder charging mechanism can be conveniently positioned, and the powder charging rod can be conveniently aligned with a blast hole.
3. According to the powder charging device, the powder charging barrel is made of transparent materials, the wall of the barrel is provided with the scale marks, the powder charging height and the filling height are visual, and the powder charging quality is favorably controlled.
4. According to the explosive loading device, the top end of the explosive loading barrel is rotatably connected with the plugging piece, so that the explosive package plugged into the blast hole can be effectively prevented from falling due to dead weight.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a front view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a charging mechanism in example 1 of the present invention;
FIG. 3 is a top view of a charge platform according to example 1 of the present invention;
FIG. 4 is a schematic view of a state of an extruded block extruding traveling wheel according to embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a walking trolley in embodiment 1 of the present invention;
the automatic medicine feeding device comprises a scissor type lifting mechanism 1, a lifting hydraulic cylinder 1-1, a moving platform 2, a mounting hole 2-1, a moving wheel 3, a medicine charging platform 4, a sliding chute 4-1, a pushing hydraulic cylinder 5, a piston rod 5-1, a push plate 5-2, a first moving seat 6, a walking wheel 7, a bidirectional buckle connecting piece 8, a medicine charging barrel 9-1, a medicine charging opening 10, a medicine charging switch door 11, a lead opening 12, a scale mark 13, a plugging sheet 14, a supporting hydraulic cylinder 15, a second moving seat 16 and an extrusion block.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Just as the introduction of the background art, the present charging of the upward big gun hole adopts the manual work to carry out, and the powder charge quality is poor, and intensity of labour is high, and to above-mentioned problem, this application has provided an upward big gun hole charging means.
In a typical embodiment of the application, as shown in fig. 1-5, an upward big gun hole charging device comprises a lifting mechanism, the lifting mechanism adopts current scissors fork type lifting mechanism 1, is made of Q345 manganese or aluminum alloy material, and is driven by a lifting hydraulic cylinder 1-1, the specific structure of the scissors fork type lifting mechanism is not described in detail here, the scissors fork type lifting mechanism is installed on a walking trolley, the walking trolley comprises a moving platform 2, the scissors fork type lifting mechanism is installed on the moving platform, a moving wheel 3 with a pedal butterfly brake pad is installed on the bottom surface of the moving platform through a connecting piece, the moving platform adopts a steel plate, and the moving platform is provided with a mounting hole 2-1 for installing the lifting mechanism.
The scissor-fork type lifting mechanism is connected with the charging platform 4 and can drive the charging platform to do lifting motion, the charging platform is made of hard plastic ABS or PS and synthetic resin materials, and the charging platform is provided with a charging mechanism and a supporting mechanism.
The powder charge mechanism is including pushing away the piece, in this embodiment, it adopts top push hydraulic cylinder 5 to push away the piece, the cylinder body bottom that pushes away the hydraulic cylinder is articulated with first removal seat 6, and the bottom of first removal seat is equipped with walking wheel 7, and the walking wheel sets up two or more, in the spout 4-1 that walking wheel embedding powder charge platform set up, first removal seat can slide along powder charge platform through walking wheel, the cylinder body top that pushes away the hydraulic cylinder can be dismantled with powder charge case 9 through 4-8 two-way knot connecting piece 8 and be connected, can understand that, the cylinder body top that pushes away the hydraulic cylinder also can be dismantled with powder charge case 9 through 4-8 bolts and be connected, and the diameter that two-way knot connecting piece or bolt can be based on the powder charge case sets up.
The cartridge case adopts a cylinder structure with two open ends and is made of transparent polyvinyl chloride PVC or polyethylene PE or other organic high polymer non-metallic materials. The piston rod of the pushing hydraulic cylinder can extend into the medicine containing barrel, and the end part of the piston rod 5-1 of the pushing hydraulic cylinder is fixed with a pushing plate 5-2 used for pushing the medicine package in the medicine containing barrel.
The diameter of the loading cylinder is the same as that of a blast hole to be loaded or is 2mm-10mm smaller than that of the blast hole.
The top end of the cylinder wall of the medicine charging cylinder is provided with a medicine charging opening 9-1, the size of the medicine charging opening is matched with that of a medicine bag, a medicine charging switch door 10 is arranged at the medicine charging opening and can open or close the medicine charging opening, the switch door is arranged by adopting the existing switch door structure, and the specific structure of the switch door is not described in detail herein. The staff can add the cartridge bag in the dress cartridge case through the dress mouth.
The bottom end of the wall of the cartridge is provided with a lead port 11 for passing a lead connected with the cartridge.
The outer side surface of the wall of the cartridge is also provided with scale marks 12 coated by fluorescent materials and used for measuring the height of the charged powder.
The uncovered position department in top of cartridge case has shutoff piece 13 through plastics hinge rotation connection, the shutoff piece adopts resin material to make, and the shutoff piece can be closed or opened the uncovered in top of cartridge case, prevents that the cartridge bag dead weight in the big gun hole from droing.
The supporting mechanism includes the extensible member, in this embodiment, the extensible member adopts support hydraulic cylinder 14, support hydraulic cylinder's cylinder body removes the seat 15 with the second and articulates, and the bottom that the seat was removed to the second is equipped with the walking wheel, in the spout that walking wheel embedding charge platform set up, support hydraulic cylinder's piston rod is articulated with the cylinder body that pushes away the pneumatic cylinder, and when pushing away the pneumatic cylinder and be the acute angle setting with the charge platform, support the pneumatic cylinder and can support pushing away the pneumatic cylinder, make it keep setting for the angle state.
Go up to big gun hole charging means still includes the extrusion piece 16 of making by the rubber material, extrusion piece one end can support the walking wheel, and the other end can block into the draw-in groove that the spout both sides set up, locks the walking wheel and fixes.
In this embodiment, the pushing hydraulic cylinder and the supporting hydraulic cylinder are both connected to the hydraulic station through oil paths, and the hydraulic station supplies oil to the pushing hydraulic cylinder and the supporting hydraulic cylinder.
The use method of the upward blast hole charging device in the embodiment comprises the following steps:
step 1, drilling and cleaning sundries in holes according to blasting design parameters;
step 2, moving the explosive charging device to an explosion area through a walking trolley, and fixing a moving wheel by using a pedal butterfly brake pad at the bottom of a moving platform to prevent the device in the explosive charging process from sliding;
step 3, after the medicine charging platform is pushed to a proper height by using the lifting mechanism, the lifting mechanism is locked, so that the lifting mechanism is prevented from losing efficacy during operation;
step 4, moving the pushing hydraulic cylinder to the position right below the blast hole by using a chute in the charging platform, the pushing hydraulic cylinder and a traveling wheel at the bottom of the supporting hydraulic cylinder, and extruding and fixing the traveling wheel and the chute wall of the chute by using an extrusion block to position the pushing hydraulic cylinder and the supporting hydraulic cylinder;
step 5, connecting the cartridge with a cylinder body of the pushing hydraulic cylinder by using a two-way buckle connecting piece;
step 6, determining the linear explosive loading density in the blast hole according to the blasting design parameters and the selected explosive characteristics, pre-charging in a charging rod according to the design requirements, and leading out a lead wire for connection by an initiator through a lead wire port below the explosive charging barrel;
the detonating device is an electric detonator with a detonating tube, an electronic detonator with a leg wire or a detonating cord and the like.
The explosive is emulsion explosive, water gel explosive or coal mine required explosive with a coating film.
The blast hole filling material is a negative Poisson's ratio or high molecular viscous material.
Step 7, the lifting mechanism drives the explosive charge barrel to extend into the blast hole for a set distance, the explosive charge is pushed to a proper position in the blast hole through the pushing hydraulic cylinder, and the pushing height can be judged through the scale mark with the fluorescence function;
and 8, if the single charging height does not meet the design requirement, performing batch charging, namely after the first charging is finished, taking the cartridge out of the blast hole by using the lifting mechanism, and plugging the cartridge filled in the blast hole by using the plugging cover plate above the cartridge to prevent the cartridge from falling. Then, repeating the steps 6 and 7 until the charging parameters in the blast hole meet the design requirements;
filling blast holes, connecting with a network, and detonating.
When the explosive package needs to be filled into the steeply inclined blast hole, the method comprises the following steps:
step a: repeat the above steps 1-6.
Step b: and adjusting the supporting hydraulic cylinder and the lifting mechanism to enable the loading barrel to be parallel to the blast hole and extend into the blast hole for a set distance.
Step c: the explosive package is pushed to a proper position in the blast hole by the pushing hydraulic cylinder, and the pushing height can be judged by the graduated scale with the fluorescence function.
Step d: if the single charging height does not meet the design requirement, batch charging can be carried out, namely after the first charging is finished, the charge filled in the blast hole is blocked by using the blocking cover plate above the charge rod so as to prevent the charge from falling. Then, repeating the charging step until the charging parameters in the blast hole meet the design requirements;
filling blast holes, connecting with a network, and detonating.
In example 1 of this embodiment:
and (5) upward blasting construction of a certain ore pass. The diameter of a blast hole is 75mm, the depth of the hole is 7m, and the distance between a blasting operation surface and a lower step is 12 m.
The specification of each part of the upward blast hole charging device is as follows: the cartridge is made of polyvinyl chloride (PVC) materials, the inner diameter of the cartridge is 72mm, the length of the cartridge is 3.5m, a lead port is formed at a position 50mm away from the bottom of the cartridge, and the top of the cartridge is provided with a plugging sheet made of resin through a plastic hinge; the loading cylinder is connected with a cylinder body of a pushing hydraulic cylinder at the lower part through 4 bidirectional fastening connecting pieces, and the bidirectional fastening connecting pieces are made of PVC; the diameter of a piston rod of the pushing hydraulic cylinder is 42mm, the maximum lifting height is 2m, the pushing hydraulic cylinder is hinged with the first moving seat, a walking wheel with the diameter of 70mm, which is made of Q235 carbon steel, is installed at the bottom of the first moving seat, and the walking wheel is directly assembled to the charging platform through a chute of the charging platform and can fix the extrusion block in the chute; the bottom of the powder charging platform is connected with a lifting platform with a lifting function; the scissor type lifting mechanism is mainly made of aluminum alloy, wherein a connecting hinge is sleeved by a stainless steel bolt, 16 scissor type supporting sections are arranged, the length of each section is 1m, and the maximum lifting height is 13 m; the moving platform of the walking trolley is made of a Q235 steel plate, and the bottom surface of the moving platform is connected with a moving wheel with the diameter of 42 mm.
The using method comprises the following steps:
drilling and cleaning sundries in the hole according to blasting design parameters;
moving the explosive charging device to an explosion area, and fixing the movable wheel by using a butterfly brake pad at the bottom of the movable platform to prevent the device in the explosive charging process from sliding;
the charging platform is pushed to a position 4m away from the hole opening of the blast hole by using the scissor type lifting mechanism, the scissor type lifting mechanism is locked, and the lifting mechanism is prevented from losing efficacy during operation;
moving the pushing hydraulic cylinder to the position right below the blast hole by using a chute in the charging platform and travelling wheels of the first moving seat and the second moving seat, and positioning the pushing hydraulic cylinder by using an extrusion block to be extruded and fixed with the chute wall of the chute;
connecting the cartridge with a pushing hydraulic cylinder by using a two-way buckle connecting piece;
according to the blasting design scheme, selecting a No. 2 rock emulsion explosive with the diameter of 32mm, determining the linear explosive density in a blast hole to be 0.8kg/m, pre-charging in a cartridge case according to the design requirement, and leading out a detonating tube for connection by a non-point detonating tube detonator through a lead port below the cartridge case;
the lifting mechanism works, the cartridge is stretched into the blast hole for a set distance, the cartridge is pushed to the bottom of the blast hole by a push plate pushing a piston rod of the hydraulic cylinder, and the first charge height of 3.1m can be directly obtained by the scale mark with the fluorescence function;
after the first charge is finished, the lifting mechanism takes out the medicine charge barrel, and the medicine charge barrel filled into the blast hole is blocked by the blocking piece so as to prevent the medicine charge barrel from falling. Then, explosive filling is carried out in the explosive filling barrel by using the pushing hydraulic cylinder, the filling height is 3.1m, and the explosive is conveyed to the designated position by the pushing hydraulic cylinder again and then filling operation is carried out;
after the explosive package is filled, filling the blast hole, wherein the filled blast hole is mainly made of a high-molecular viscous material, the local part of the blast hole is made of a slag mixture, and the filling height is 0.8 m;
and after charging all the blast holes, performing network connection and detonating.
After blasting, the phenomenon of overbreak and underexcavation does not occur on the side wall of the draw shaft, and the blasting footage reaches the design requirement.
In another example 2 of the present embodiment:
and (5) excavating upward blasting construction in a certain large underground mall. The diameter of a blast hole is 110mm, the depth of the hole is 8m, the included angle between the peripheral hole and the vertical surface is 10 degrees, and the distance between the blasting operation surface and the lower step is 13 m.
The specification of each part of the upward blasting charging device is as follows: the medicine containing barrel is made of polyvinyl chloride (PVC) materials, the inner diameter of the medicine containing barrel is 105mm, the length of the medicine containing barrel is 3m, a lead port is formed in a position 50mm away from the bottom of the medicine containing rod, and the top of the medicine containing barrel is provided with a sealing and plugging sheet made of resin through a plastic hinge; the loading cylinder is connected with the pushing hydraulic cylinder at the lower part through 6 bidirectional buckle connecting pieces, and the bidirectional buckle connecting pieces are made of PVC; the diameter of a piston rod of the pushing hydraulic cylinder is 42mm, the maximum lifting height is 2m, a walking wheel with the diameter of 70mm, which is made of Q235 carbon steel, is installed on the bottom surface of the first moving seat, the walking wheel is directly assembled to the powder charging platform through a chute and can be fixed in the chute through an extrusion block, a supporting hydraulic cylinder with the diameter of 42mm and a second moving seat are arranged on the powder charging platform in advance, and the bottom of the powder charging platform is connected with a scissor type lifting mechanism; the scissor type lifting mechanism is mainly made of aluminum alloy, the connecting hinges are sleeved by stainless steel bolts and screws, 16 scissor type supporting sections are arranged, the length of each section is 1m, and the maximum lifting height is 13 m; the moving platform of the walking trolley is made of a Q235 steel plate, and the lower part of the moving platform is connected with a moving wheel with the diameter of 42 mm.
The charging steps of the upward blasting charging device are as follows:
1. drilling and cleaning sundries in the hole according to blasting design parameters;
2. the explosive charging device moves to the position of an explosion area, and the butterfly brake block at the bottom of the movable platform is used for fixing the movable wheel to prevent the device in the explosive charging process from sliding;
3. pushing the charging platform to a position 4m away from the orifice of the blast hole by using a scissor-type lifting mechanism, locking the lifting mechanism, and preventing the lifting mechanism from losing efficacy during operation;
4. moving the pushing hydraulic cylinder to the position right below the blast hole by using a chute and a travelling wheel in the charging platform, and positioning the pushing hydraulic cylinder by using the travelling wheel to fix an extrusion block and the chute wall of the chute;
5. connecting the cartridge with a pushing hydraulic cylinder by using a two-way buckle connecting piece;
6. according to the blasting design scheme, selecting a No. 2 rock emulsion explosive with the diameter of 32mm, determining the linear explosive density in a blast hole to be 0.8kg/m, pre-charging in a cartridge case according to the design requirement, and leading out a detonating tube for connection by a non-point detonating tube detonator through a lead port below a charging rod;
7. the explosive package is pushed to the bottom of the blast hole through a push plate connected with a piston rod of a pushing hydraulic cylinder, and the first explosive loading height of 2.4m can be directly obtained through the scale mark with the fluorescence function;
8. after the first charge is finished, the medicine charging barrel is taken out by lowering the lifting mechanism, and the medicine charge which is charged into the blast hole is blocked by the blocking piece so as to prevent the medicine charge from falling. Then, continuously utilizing the explosive loading barrel to load the explosive for two times in the upward blast hole, wherein the total loading height is 7.2 m;
9. when the peripheral holes with 10-degree included angles are charged, the angles of charging rods are adjusted by using a supporting hydraulic cylinder and are parallel to blast holes, and then the charging is carried out by the same steps as the upward holes;
10. filling blast holes mainly by using a high-molecular viscous material, locally using a slag mixture, and filling the height of 0.8 m;
11. and after charging all the blast holes, performing network connection and detonating.
After blasting, the upward blasting does not have obvious overbreak and undermining phenomenon, the sidewall blasting new growth surface is comparatively clean and tidy, the half-hole rate is as high as 92%, the footage reaches the design requirement, and the blasting effect is good.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims (10)

1. The utility model provides an upward big gun hole charging means, a serial communication port, including the elevating system that can remove, elevating system is connected with the powder charge platform, and the powder charge platform is equipped with powder charge mechanism and supporting mechanism, and powder charge mechanism is including pushing away the piece, and it is articulated with first removal seat to push away a bottom, and first removal seat and powder charge platform sliding connection push away the piece and be connected with the cartridge case of the uncovered setting in both ends, and the portion of pushing away that pushes away the piece can stretch into inside the cartridge case, supporting mechanism include the extensible member, and extensible member one end is articulated with pushing away the piece, and the other end removes the seat with the second and articulates, and the second removes seat and powder charge platform sliding connection.
2. The upward-direction blasthole charging device as defined in claim 1, wherein the pushing member is a pushing hydraulic cylinder, a top end of a cylinder body of the pushing hydraulic cylinder is fixedly connected with the charging barrel, and a piston rod of the pushing hydraulic cylinder can extend into the charging barrel and is connected with the pushing plate.
3. An upward hole charging device as defined in claim 1, wherein said cartridge has a charging opening at the top end of the wall, a charging switch door is provided at the charging opening, and a lead opening is provided at the bottom end of the wall.
4. An upward hole charging device according to claim 1, wherein a closure piece is rotatably connected to the top opening of the charging case, and the closure piece can open or close the top opening of the charging case.
5. An upward hole charging device according to claim 1, wherein the charging barrel is made of transparent material, and the surface of the barrel wall is provided with scale marks.
6. An upward hole charging device according to claim 1, wherein the telescopic member is a supporting hydraulic cylinder, a cylinder body of the supporting hydraulic cylinder is hinged to the second movable seat, and a piston rod of the supporting hydraulic cylinder is hinged to the pushing member.
7. An upward hole charging device according to claim 1, wherein the first movable base and the second movable base are provided with walking wheels at the bottom, the walking wheels are embedded in a chute of the platform and can be fixed with the chute wall by an extrusion block made of flexible material.
8. An upward hole charging device according to claim 1, wherein the elevating means is mounted on the travelling carriage.
9. An upward hole charging means according to claim 1, wherein the lifting mechanism is a scissor lifting mechanism.
10. A method of operating an upward hole charging means as claimed in any one of claims 1 to 9, wherein the charging rod of the charging means is aligned with the hole, and the cartridge is advanced into the hole by a set distance under the action of the elevating means, and the pusher is operated to push the charge of the cartridge into the hole.
CN202010894822.4A 2020-08-31 2020-08-31 Upward blast hole charging device and working method Withdrawn CN111895873A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833475A (en) * 2021-09-22 2021-12-24 浙江京安爆破工程有限公司 Tunnel new Austrian method construction equipment and construction method
CN114396841A (en) * 2022-02-28 2022-04-26 安徽理工大学 Device for charging and blocking coal-bed top plate upward blast holes and using method thereof
CN115680654A (en) * 2022-11-11 2023-02-03 北京科技大学 Carbon dioxide fracturing device blast hole filling equipment used in high-step mining of strip mine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833475A (en) * 2021-09-22 2021-12-24 浙江京安爆破工程有限公司 Tunnel new Austrian method construction equipment and construction method
CN113833475B (en) * 2021-09-22 2024-05-10 浙江京安爆破工程有限公司 Tunnel new Otto construction equipment and construction method
CN114396841A (en) * 2022-02-28 2022-04-26 安徽理工大学 Device for charging and blocking coal-bed top plate upward blast holes and using method thereof
CN115680654A (en) * 2022-11-11 2023-02-03 北京科技大学 Carbon dioxide fracturing device blast hole filling equipment used in high-step mining of strip mine

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Application publication date: 20201106