Charging device and charging method for deep hole blasting

文档序号:746778 发布日期:2021-04-23 浏览:26次 中文

阅读说明:本技术 一种用于深孔爆破的装药装置及装药方法 (Charging device and charging method for deep hole blasting ) 是由 唐忠义 王海亮 闫立恒 丁新宇 谢方鹏 付元琛 崔超超 蒋克文 李迦勒 赵华鹏 于 2020-12-30 设计创作,主要内容包括:本发明提供了一种用于深孔爆破的装药装置及装药方法,涉及工程爆破技术领域,解决了装药不连续以及盲炮处理困难的问题。其包括多个装药管,多个填塞管,以及抽拉绳、绳卡、堵口塞,抽拉绳分别穿过装药管和填塞管,绳卡可以固定配置在装药管和填塞管端部或内部的抽拉绳上,各个绳卡之间的抽拉绳长度大于装药管或填塞管的长度,装药管内装有炸药,填塞管内装有填塞物;装药管和填塞管的结构相同,管体的两端分别安装堵头,垫片固定连接在一端的堵头上,垫片上的通孔直径小于绳卡的直径;导爆索和雷管相连并依次穿过装药管,堵口塞安装在炮孔的孔口位置,雷管的脚线和抽拉绳从堵口塞的导线槽引出炮孔。利用该装置装药、处理盲炮等操作更加方便。(The invention provides a charging device and a charging method for deep hole blasting, relates to the technical field of engineering blasting, and solves the problems of discontinuous charging and difficult blind gun processing. The explosive-filling pipe comprises a plurality of explosive-filling pipes, a plurality of filling pipes, pulling ropes, rope clamps and a plugging plug, wherein the pulling ropes respectively penetrate through the explosive-filling pipes and the filling pipes; the structure of the medicine filling pipe is the same as that of the filling pipe, the two ends of the pipe body are respectively provided with a plug, the gasket is fixedly connected to the plug at one end, and the diameter of the through hole on the gasket is smaller than that of the rope clamp; the detonating cord and the detonator are connected and sequentially pass through the explosive loading tube, the plugging plug is arranged at the orifice position of the blast hole, and the leg wire and the drawing rope of the detonator are led out of the blast hole from the wire groove of the plugging plug. The device is more convenient to use for charging, processing blind cannons and other operations.)

1. A charging device for deep hole blasting is characterized by comprising a plurality of charging pipes, a plurality of filling pipes, pulling ropes, rope clamps and plugging plugs, wherein the pulling ropes sequentially penetrate through the charging pipes and the filling pipes; the structure of the medicine filling pipe is the same as that of the filling pipe, the medicine filling pipe and the filling pipe respectively comprise a gasket, a front plug, a rear plug and a pipe body, the front plug and the rear plug are respectively fixed at two ends of the pipe body, the gasket is fixedly connected with the front plug, and the diameter of a through hole in the gasket is smaller than that of the rope clip; the detonating cord and the detonator are connected and sequentially pass through the explosive charging tube filled with the explosive, the plugging plug is arranged at the orifice position of the blast hole and is provided with a wire groove, and the leg wire and the drawing rope of the detonator are led out of the blast hole from the wire groove.

2. A charge for deep hole blasting according to claim 1, wherein the cord fastener is disposed inside the charge tube and the filler tube and fixed to the pull cord.

3. A charging device for deep hole blasting according to claim 1 or 2, wherein the gasket, the front plug and the rear plug are provided with through holes at central positions, the pulling rope and the detonating cord pass through the through holes of the charging tube, and the pulling rope also passes through the through holes of the plugging tube.

4. A charge for deep hole blasting according to claim 1 or 2, wherein the charge tube and the packing tube are arranged in the blast hole, a stemming and a plugging plug are further arranged between the packing tube and the hole opening of the blast hole, and the detonator is arranged between the stemming and the plugging plug.

5. A charging means for deep hole blasting according to claim 1 or 2, wherein the pulling rope pulls each rope clip to abut against the gasket of the filling pipe and the charging pipe in turn, and the filling pipe and the charging pipe move along with the pulling rope.

6. A charging means for deep hole blasting according to claim 1 or 2, wherein said plurality of charging pipes are arranged in sequence in the axial direction of the blast hole, and said plurality of filling pipes are arranged in sequence in the axial direction of the blast hole.

7. A charge for deep hole blasting according to claim 1 or 2, wherein the charge tube and the stemming tube are axially spaced apart along the borehole.

8. A charging means for deep hole blasting according to claim 1 or 2, wherein the explosive cartridge in the charging tube is bound and fixed by a binding rope, and the detonating cord passes through the explosive cartridge.

9. A charging method for deep hole blasting using a charging device for deep hole blasting according to any one of claims 1 to 8, characterized by comprising the steps of:

s1, respectively assembling explosive tubes, and cooperatively installing a detonating cord, a drawing rope and a rope clip, and sequentially pushing the explosive tubes with explosives into blast holes;

s2, respectively assembling the stuffing pipes, and cooperatively installing a drawing rope and a rope clip, and sequentially pushing the stuffing pipes filled with the stuffing into the blast holes;

s3, pushing the explosive loading pipe and the filling pipe to a set position by using a gun rod;

s4, filling the stuffing into the blast hole for tamping, and connecting the detonating cord and the detonator;

and S5, plugging the blast hole by using the plugging plug, and leading out the detonator leg wire and the drawing rope from a wire groove of the plugging plug.

10. A blind shot processing method for deep hole blasting, which utilizes the loading method for deep hole blasting of claim 9 to complete the loading of blast holes, and is characterized in that after the detonation, when a blind shot occurs, a plugging plug is firstly pulled out, a detonator is taken out, a filler is taken out, a pulling rope is dragged, a filler pipe and a loading pipe are taken out in sections, the filler pipe and the loading pipe are separated, and the filler, explosive and a detonating cord are respectively taken out from the filler pipe and the loading pipe.

Technical Field

The invention relates to the technical field of engineering blasting, in particular to a powder charging device and a powder charging method for deep hole blasting.

Background

In special deep hole blasting operation, such as coal mining, the problems of gas overrun of a high-gas low-permeability coal seam and large-area suspension of top coal or a roof rock stratum of a stope face are solved, and advanced presplitting blasting of the top coal or the roof is adopted; the subway shield passes through the boulder or the hard rock stratum and is blasted by adopting the deep-hole pre-crushed rock on the ground. Deep hole blasting has the characteristics of deep blast hole and large loading capacity. The charging process is easy to have the following problems: (1) the charge is discontinuous and is difficult to completely detonate; (2) the blind gun is difficult to process, and the explosive, the detonating equipment, the spacer and the stuffing filled into the blast hole are difficult to take out; (3) the detonator foot line and the bus are easy to be worn and damaged with a blast hole in the charging process; (4) the detonating device and the explosive are difficult to position; (5) spaced charging is not easy to realize.

At present, in the prior art: chinese patent (CN111141187A) discloses a powder charging structure and a processing method for a blind gun for subway shield rock blasting processing, and specifically comprises the steps of placing a hole protecting pipe in a blast hole, sequentially arranging a powder charging sleeve pipe and a filling sleeve pipe from bottom to outside in the hole protecting pipe, arranging explosive, a detonator and a detonating tube in the powder charging sleeve pipe, and connecting a first steel wire to the bottom. The filling sleeve is filled with stones and is connected with a second steel wire, so that blind shots in subway shield rock blasting are identified and processed. However, the following problems still remain: (1) the detonating tube for identifying the blind shot extends out of the blast hole, and a gap exists between the filling sleeve and the reaming tube, so that the blind shot cannot be used in a coal mine gas mine; (2) the length of a single section of sleeve is limited, and for long and deep blast holes, adjacent sleeves are easy to misplace, so that the filling sleeves and the filling sleeves are difficult to fill; (3) a layer of reaming pipe is added between the explosive and the wall of the blast hole, so that the blasting effect of the explosive on the rock mass is reduced; (4) and for a water blast hole, the reaming pipe is easy to float upwards.

Chinese patent (CN108106506A) discloses a deep hole blasting intrinsically safe rapid charging device, and particularly relates to a device which utilizes a conical guide head at the foremost end of the device to avoid accumulation of coal rock fragments or fragments caused by charging and reduce charging resistance; the tail plug at the tail part of the device is used for weakening the impact of the hole sealing process on the explosive cartridge; the tube body meets the requirement of charging by increasing or decreasing the number of the PVC tube bodies or changing the diameter; the safety rope can rapidly pull out the explosive cartridge when a blind cannon occurs. The problems with this device are: (1) during the process that the conical guide head pushes the blast hole, the coal rock fragments or fragments in the blast hole are extruded to a gap between the guide head and the blast hole wall, so that the guide head is clamped in the blast hole; (2) the safety rope is positioned outside the pipe body, so that the actual outer diameter of the pipe body is improved, the friction resistance between the pipe body and the blast hole wall during pushing or withdrawing is increased, the pipe body is eccentrically stressed when the safety rope is stretched, and the phenomenon of 'blocking' is easy to occur; (3) the structure is complex, and the machining of the reducing end of the pipe body is difficult; (4) for the blast holes inclined upwards, the adjacent pipe bodies are easy to disjoint, and the disjointed pipe bodies are not easy to be butted again due to strict requirements on the size of the joint, so that explosive disjointing and explosion propagation interruption are caused. Furthermore, the document does not provide a means of stemming and a method of clearing the stemming in conjunction with the charge.

Chinese patent (CN110196003A) provides a deep hole blasting quick charging device and a charging method, and the device is formed by connecting a plurality of charging units which are connected end to end, wherein each charging unit comprises a charging pipe, an explosion wire and a cartridge, and sealing plugs are respectively arranged at the head and the tail of the charging device. However, the following problems still remain: (1) the first detonating cord and the second detonating cord are positioned at the upper side and the lower side of the explosive and are not in close contact with the explosive, so that the detonation is unreliable. (2) The anti-slip mechanism is tightly clamped with the blast hole wall, and the explosive charging device and the explosive cannot be taken out after a blind shot occurs. (3) And lacks the device and measure for processing the blind cannon.

For this reason, the following existing in the prior art are addressed: (1) the size requirement of the butt joint of the adjacent charge pipes is high, the processing is inconvenient, the charge is discontinuous and the booster is interrupted easily because of the butt joint after disjointing; (2) when the blind gun is used, the problem that the front end and the rear end of the multi-section explosive loading pipe are easy to be disjointed or stuck when being taken out is solved; (3) the spaced charging in the hole is inconvenient, and the charging position and the spacing distance of the spaced charging are inaccurate; (4) inconvenient cleaning of the packing and the like. Further improvements in existing charges and methods of charging are needed.

Disclosure of Invention

The invention provides a charging device and a charging method for deep hole blasting, and aims to solve the problems that the charging in a blast hole is discontinuous, a charging pipe is easy to pressurize and clamp in blind shot processing, the charging is convenient to be carried out at intervals and the charging position in the blast hole is convenient to determine.

A charging device for deep hole blasting comprises a plurality of charging pipes, a plurality of filling pipes, pulling ropes, rope clamps and plugging plugs, wherein the pulling ropes sequentially penetrate through the charging pipes and the filling pipes; the structure of the medicine filling pipe is the same as that of the filling pipe, the medicine filling pipe and the filling pipe respectively comprise a gasket, a front plug, a rear plug and a pipe body, the front plug and the rear plug are respectively fixed at two ends of the pipe body, the gasket is fixedly connected with the front plug, and the diameter of a through hole in the gasket is smaller than that of the rope clip; the detonating cord and the detonator are connected and sequentially pass through the explosive charging tube filled with the explosive, the plugging plug is arranged at the orifice position of the blast hole and is provided with a wire groove, and the leg wire and the drawing rope of the detonator are led out of the blast hole from the wire groove.

Preferably, the cord fastener is disposed inside the loading tube and fixed to the withdrawal cord.

Preferably, the gasket, the front plug and the rear plug are provided with through holes at the central positions, the pull rope and the detonating cord pass through the through holes of the explosive charging tube, and the pull rope also passes through the through holes of the filling tube.

Preferably, the charge tube and the packing tube are disposed in the blast hole, a packing and a plugging plug are further disposed between the packing tube and the opening of the blast hole, and the detonator is disposed between the packing and the plugging plug.

Preferably, the pulling rope pulls each rope clip to be sequentially attached to the filling pipe and the gasket of the medicine filling pipe, and the filling pipe and the medicine filling pipe move along with the pulling rope.

Preferably, the plurality of explosive charging pipes are arranged in sequence along the axial direction of the blast hole, and the plurality of filling pipes are arranged in sequence along the axial direction of the blast hole.

It is also preferred that the charge tube and the stemming tube are axially spaced apart along the borehole

It is also preferable that the explosive cartridge in the charging tube is bound and fixed by a binding rope, and the detonating cord penetrates through the explosive cartridge.

A charging method for deep hole blasting utilizes the charging device for deep hole blasting, and comprises the following steps:

s1, respectively assembling explosive tubes, and cooperatively installing a detonating cord, a drawing rope and a rope clip, and sequentially pushing the explosive tubes with explosives into blast holes;

s2, respectively assembling the stuffing pipes, and cooperatively installing a drawing rope and a rope clip, and sequentially pushing the stuffing pipes filled with the stuffing into the blast holes;

s3, pushing the explosive loading pipe and the filling pipe to a set position by using a gun rod;

s4, filling the stuffing into the blast hole for tamping, and connecting the detonating cord and the detonator;

and S5, plugging the blast hole by using the plugging plug, and leading out the detonator leg wire and the drawing rope from a wire groove of the plugging plug.

A blind shot processing method for deep hole blasting is used for completing the loading of a shot hole, after detonation, when a blind shot occurs, firstly pulling out a plugging plug, taking out a detonator, taking out a filler, dragging a pulling rope, taking out a filling pipe and a loading pipe in sections, splitting the filling pipe and the loading pipe, and respectively taking out the filler, explosive and a detonating cord from the filling pipe and the loading pipe.

The charging device and the charging method for deep hole blasting provided by the invention have the beneficial effects that: the adjacent explosive charging pipe and the filling pipe in the explosive charging device are independently arranged, so that the explosive and the filling material are convenient to charge and take out; when the blind cannon is processed, the pulling rope and the rope clamp are matched for dragging, and the pulling rope between the explosive charging pipes has allowance, so that each explosive charging pipe is uniformly stressed, the problems of extrusion, clamping or locking cannot occur, and a filler can be conveniently cleaned after the blind cannon; in addition, the device can charge powder at intervals in the hole, the structure is simpler, the manufacture is convenient, and the rapid assembly can be realized.

Drawings

FIG. 1 is a schematic view of a charge configuration for deep hole blasting;

FIG. 2 is a schematic view of a gasket construction;

FIG. 3 is a schematic view of the stopper;

FIG. 4 is a schematic view of the structure of the stopper;

FIG. 5 is a schematic cross-sectional view of a stopper;

FIG. 6 is a diagram of arrangement of single-lane deep hole blasting pre-crushing top coal blastholes;

in the figure: 1. a gasket; 2. a rear plug; 3. a detonating cord; 4. pulling a rope; 5. rope clamping; 6. a detonator; 7. a leg wire; 8. plugging the opening; 9. a tampon; 10. a pipe body; 11. an explosive; 12. tying a rope; 13. a front plug; 14. a through hole; 15. a wire guide groove, 16-a stoping roadway and 17-a blast hole.

Detailed Description

The specific embodiment of the charging device and the charging method for deep hole blasting according to the present invention will be described with reference to fig. 1 to 6.

The utility model provides a charging means for deep hole blasting, includes a plurality of explosive charging pipes, a plurality of packing pipes to and take out stay cord 4, rope clip 5 and shutoff stopper 8, explosive charging pipe and packing pipe are used for placing the explosive respectively and fill the thing, and the even atress of a plurality of explosive charging pipes and a plurality of packing pipes can be guaranteed in the cooperation of pull rope and rope clip, and can not produce extrusion deformation each other, and shutoff big gun hole is filled in the shutoff and the wire casing of reservation stay cord to the shutoff. The pulling rope sequentially passes through each medicine filling pipe and each filling pipe, so that the installation position of the medicine filling pipe can be integrally controlled. All fixed configuration has rope clip 5 on the pull rope of charge pipe and stuffer tube tip, and 4 length of pull rope between each rope clip 5 are greater than the length of charge pipe or filler tube, and the surplus of pull rope has guaranteed not to produce the extrusion between each charge pipe between the rope clip 5. The explosive tube is filled with explosive, the filling plug tube is filled with filling material, the dosage of the explosive and the filling material and the length of the explosive tube and the filling plug tube are determined according to the actual use condition, and the air interval charging can be realized by not filling explosive in part of the explosive tube.

In addition, in the modification of the embodiment, the rope clip may be disposed inside the explosive loading tube and the filling tube and fixed to the pull rope, so that adjacent explosive loading tubes may be in close contact, continuity of explosive loading may be ensured, and an initiation effect may be ensured. In the modified example, other components of the explosive loading device and the position relation of the other components are unchanged, the explosive loading device also has the function of processing blind guns, the operation principle is that when the pulling rope is pulled outwards, the rope clamp extrudes the rear plug of a certain explosive loading pipe to enable the certain explosive loading pipe to move outwards, even if the rear plug and the pipe body fall off from the pipe body because of loose connection, the rear plug can be clamped on the gasket of the next explosive loading pipe under the extrusion of the rope clamp, the next explosive loading pipe is pushed to move outwards through the gasket, the explosive loading pipe with the rear plug falling off can be pushed outwards through the rear plug of the previous explosive loading pipe, and the effect of taking out all the explosive loading pipes and the explosive loading pipes in the blast hole is achieved.

The structure of the loading tube and the structure of the filling tube are the same, the loading tube and the filling tube respectively comprise a gasket 1, a front plug 13, a rear plug 2 and a tube body 10, the front plug 13 and the rear plug 2 are fixed at two ends of the tube body 10 respectively, the two plugs and the tube body are fixedly connected, the gasket 1 and the front plug 13 are fixedly connected, the gasket 1 is in front of the front plug, and the diameter of a through hole in the gasket 1 is smaller than that of a rope clamp. The gasket 1 can be cylindrical, the diameter is 75mm, the thickness is 5mm, and a through hole with the diameter of 15mm is drilled at the center; two end caps can be that the external diameter is 85mm, highly is 30 mm's cask shape, and inside diameter is 80mm, and the degree of depth is 25mm, drills out a diameter for 15 mm's through-hole on bottom surface central point, and the body can be for the internal diameter to be 75mm, and the external diameter is 80 mm's PVC pipe, and single PVC pipe's length is 2 m. The detonating cord 3 is connected with the detonator 6 and sequentially passes through the explosive charging tube filled with explosives, the plugging plug is arranged at the orifice position of the blast hole, the plugging plug 8 is provided with a wire groove, and the foot line and the pull rope of the detonator 6 are led out of the blast hole from the wire groove.

Gasket 1, preceding end cap 13 and back end cap 2 all are provided with the through-hole on radial plane central point puts, each through-hole 14 is arranged on same axis, thereby conveniently take out stay cord 4 and pull, and pull the in-process body and can not eccentric atress, the through-hole of charge pipe is passed to pull cord 4 and detonating cord 3, the pull cord can be through pulling to take out the charge pipe from the big gun hole, detonating cord 3 is the explosive in each charge pipe in proper order, pull cord 4 still passes the through-hole of packing tube, can in time efficient clearance big gun hole when taking place the blind gun, take out stemming 9 and explosive 11. Wherein rope card 5 chooses the standard component of metal material for use, and the size is greater than the diameter of through-hole, makes it unable to pass the through-hole, handles blind big gun in-process, pulls the pull rope to the big gun hole outward, and the rope card of knotting fixedly with the pull rope exerts pressure to its rear gasket for charge pipe and packing tube overcome and the big gun hole wall between frictional force move to the big gun hole outward. The drawing rope 4 is required to be made of a material with certain strength and flexibility, and a plastic coated steel wire rope can be selected, and the length of the drawing rope is larger than the depth of a blast hole.

The explosive loading pipe and the filling pipe are arranged in the blast hole and sequentially pushed into the blast hole one by one, the explosive loading can be realized at intervals through the combination of the explosive loading pipe and the filling pipe, a filler and a plugging plug 8 are further arranged between the hole openings of the filling pipe and the blast hole, and the detonator 6 is arranged between the filler and the plugging plug.

The drawing rope 4 pulls each rope clip to be sequentially attached to the gasket 1 of the filling pipe and the medicine filling pipe, so that the filling pipe and the medicine filling pipe are evenly stressed and can be drawn simultaneously, and the filling pipe and the medicine filling pipe move along with the drawing rope 4. A plurality of powder charge pipes set gradually along the big gun hole axial, and a plurality of pipes of packing set gradually along the big gun hole axial. Wherein, the explosive cartridge in the charging tube is bound and fixed by a binding rope 12, and the detonating cord 3 passes through the explosive cartridge.

The shape of the plugging plug 8 is round table shape, and a wire guide groove for wire arrangement is processed along a bus, wherein the bus is 500mm long, the diameter of the upper bottom surface is 70mm, and the diameter of the lower bottom surface is 100 mm.

Taking a coal mine as an example, the top coal is pre-cracked to solve the rock burst problem, as shown in fig. 6. And (3) carrying out top coal drilling on a lateral side of the transportation roadway or the return air roadway, wherein the drilling angle is 2-11 degrees, and carrying out deep hole blasting to pre-crush the top coal. The charging device and the charging method for the deep hole blasting are used for charging, the charging method for the deep hole blasting is particularly suitable for charging of a slow inclined drilling hole, and the charging method comprises the following steps:

s1, respectively assembling explosive tubes, and cooperatively installing a detonating cord, a drawing rope and a rope clip, and sequentially pushing the explosive tubes for placing explosives into blast holes.

The utility model discloses a take out the 1 st charge pipe of stay cord, including gasket, preceding end cap and body, the body uses PVC pipe preparation, and the front end of taking out the stay cord is knotted fixedly with the 1 st rope clip, sets up in the outer end of gasket, and the rope clip is outside charge pipe, and the front end of explosive fuse also is knotted fixedly in the gasket outer end, and the diameter of knot is greater than the diameter of through-hole on the gasket, makes it can't pass the through-hole after taut. The drawing rope and the detonating cord penetrate through the gasket and the through hole of the front plug, and are loaded into the PVC pipe along the axis direction of the blast hole, and the drawing rope and the detonating cord are not restricted with each other. And binding a plurality of coils of explosive around the detonating cord in the PVC pipe by using a binding rope, so that the explosive is in close contact with the detonating cord, and the detonating cord is positioned on the center line of the explosive. The drawing rope and the detonating cord in the tube body penetrate out of the rear plug through the through hole. The front end cap and the rear end cap tightly plug the front end and the rear end of the pipe body and are firmly bonded by glue. And the explosive tube at the end part is assembled and pushed into the orifice of the blast hole.

Then, a 2 nd charging pipe is manufactured, a 2 nd rope clamp is connected, the distance between the 2 nd rope clamp and a 1 st rope clamp installed in advance is larger than the length of the 1 st charging pipe, and a drawing rope and an explosion wire pass through a gasket of the charging pipe and a through hole of a front plug; the rope is clamped at the outer end of the explosive charging pipe, the front end of the detonating cord is also knotted and fixed at the outer end of the gasket, the diameter of the knot is larger than that of the through hole in the gasket, and the knot cannot penetrate through the through hole after being tensioned. In order to realize air interval charging, explosive can not be charged in the charging pipe. The drawing rope and the detonating cord in the tube body penetrate out of the rear plug through the through hole. The front end cap and the rear end cap tightly plug the front end and the rear end of the pipe body and are firmly bonded by glue. And the explosive tube at the end part is assembled and pushed into the orifice of the blast hole.

And then a plurality of charge pipes are sequentially manufactured according to the requirement and are ejected into the blast hole one by one. After the preset charging length is reached, the detonating cord is indexed out of the blast hole by a certain length so as to be charged into the blast hole together with the plug.

S2, respectively assembling the packing tubes, and cooperatively installing a drawing rope and a rope clip to sequentially push the packing tubes filled with the packing into the blast holes.

The drawing rope and the rope clamp are knotted and fixed, the distance between the rope clamp and the last rope clamp on the drawing rope is larger than the length of the stuffing pipe between the two rope clamps, the drawing rope passes through the gasket of the stuffing pipe, the front plug and the through hole in the rear plug, a filler is filled in the pipe body and tamped, the plug and the pipe body are bonded by glue, and the stuffing pipe is pushed into the blast hole after being assembled. And manufacturing the next packing tube according to the requirement, and sequentially pushing the packing tube into the blast hole. The filling material can be stemming, yellow mud, clay, sand, cement and other plastic filling materials.

And S3, pushing the charging pipe and the filling pipe to a set position by using a gun rod. The specific position is determined according to the length of the blast hole and the length design of charging and sealing.

And S4, filling the stuffing with the minimum sealing length into the blast hole, tamping the stuffing until the diameter of the hole is about 0.8m, and then connecting a detonating cord and a detonator.

And S5, plugging the blast hole by using the plugging plug, and leading out the detonator leg wire and the drawing rope from a wire groove of the plugging plug.

And (3) plugging the blast hole by using the plugging plug, so that the joint of the detonator and the detonating cord is positioned between the plugging plug and the filler, and the detonator leg wire and the drawing rope are led out of the blast hole to a certain distance from the orifice through a wire groove of the plugging plug. The blocking plug is close enough to block the blast hole to prevent the blast hole from being flushed by detonation gas generated by the detonator and the detonating cord.

In engineering blasting, normally, as long as a detonating device such as a detonator in a blast hole is detonated, the explosive is also completely detonated. The blind shot processing method under the condition of considering the misfiring mainly comprises the step of processing the blind shot under the condition of the misfiring of detonating devices such as detonators, detonating cords and the like in a shot hole. When the blind shot happens in the shot hole, whether the detonation equipment such as a detonator and the like fails to detonate or not is considered, and the detonation equipment needs to be taken out of the shot hole and then is intensively destroyed. The blind shot processing method for deep hole blasting is used for completing the charging of a blast hole, when a blind shot occurs after detonation, firstly pulling out a plugging plug, taking out a detonator, taking out a stuffing, dragging a pulling rope, taking out a stuffing pipe and a charging pipe in sections, and then respectively taking out the stuffing, explosive and a detonating cord from the stuffing pipe and the charging pipe.

The adjacent explosive loading pipe and the filling pipe in the explosive loading device are independently arranged, so that the installation and the taking out of the explosive and the filling material are convenient; when the blind cannon is processed, the pulling rope and the rope clamp are matched for dragging, and the pulling rope between the explosive charging pipes has allowance, so that each explosive charging pipe is uniformly stressed, the problems of extrusion, clamping or locking cannot occur, and a filler can be conveniently cleaned after the blind cannon; in addition, the device realizes accurate positioning of spaced charging in the hole, has a simpler structure, is convenient to manufacture, and can realize quick assembly.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

10页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种煤炭露天开采爆破方法

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!