CN116465268A

CN116465268A - Throwing device

Info

Publication number: CN116465268A
Application number: CN202310588151.2A
Authority: CN
Inventors: 张建华; 张越; 黄刚; 张煜忠
Original assignee: Wuhan Huayu Anhui Technology Co ltd
Current assignee: Wuhan Huayu Anhui Technology Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-07-21

Abstract

The invention discloses a throwing device, which relates to the technical field of mine blasting. The eccentric hook is arranged on the traction rope, and the limiting component is arranged on the traction rope. The first elastic isolation piece can be detached and hung on the eccentric hook, the first elastic isolation piece comprises an elastic body formed by encircling, the elastic body can be detached and clamped on the limiting assembly, the elastic body can be in a binding state under the clamping of the limiting assembly, and the elastic body can be automatically deformed to expand when the limiting assembly is separated. It is thus clear that the device of puting in descends first elastic isolation piece convenient fast, can be directed to descend first elastic isolation piece to target position and be convenient for retrieve haulage rope, eccentric hook and spacing subassembly, convenient to use.

Description

Throwing device

Technical Field

The invention relates to the technical field of mine blasting, in particular to a throwing device.

Background

In mining operations, deep hole blasting is generally used for mining. Specifically, firstly, a blast hole is deeply dug at a target position, then explosive is poured into the blast hole, a lead wire is extended into the blast hole, and after the lead wire is ignited, the rock is blasted along with the explosion of the explosive. Because in the process of deep-digging the blast hole, sometimes the bottom of the blast hole overflows from the sewage, and the water is mixed with the explosive in the blast hole, so that the power of explosive explosion is reduced. Therefore, isolators have been invented for isolating groundwater from explosives.

For example, the prior art patent publication number CN216770369 provides isolation of ground water from the explosive by providing an isolator in the borehole to avoid ground water from affecting the explosive explosion.

However, the isolator does not have any traction means to control its descent, which makes it difficult for the isolator to descend to the target position in the borehole, and eventually the detonation of the explosive does not achieve the desired effect.

Disclosure of Invention

In view of the above, it is necessary to provide a throwing device for solving the technical problem that the descending height of the isolator cannot be controlled because the isolator does not have any traction device to control the isolator to fall in the process of falling of the blast hole in the prior art.

In order to achieve the technical purpose, the technical scheme of the invention provides a throwing device, which comprises:

a traction rope;

the eccentric hook is arranged on the traction rope;

the limiting assembly is arranged on the traction rope;

the first elastic isolation piece comprises a base and an elastic body, wherein the base is connected with the eccentric hook in a detachable mode, the elastic body is arranged around the periphery of the base, the elastic body is detachably connected with the limiting assembly in a clamping mode, the elastic body can be in a binding state under the clamping of the limiting assembly, and the elastic body can be automatically deformed to expand when the limiting assembly is separated.

In one embodiment, the first elastic spacer comprises a base, the base is connected with the elastic body and detachably connected with the eccentric hook, and the elastic body is arranged around the periphery of the base.

In one embodiment, the first elastic isolation piece further comprises a stress rope, two ends of the stress rope are connected with the base, a traction hole is formed between the stress rope and the base, and the eccentric hook is detachably connected to the traction hole in a hanging mode.

In one embodiment, the eccentric hook comprises a main body and a hook which are connected, wherein a connecting hole is formed in the main body in a surrounding manner, and the gravity center of the main body is not parallel to the straight line and the plumb line where the gravity center of the hook is located.

In one embodiment, the limiting component comprises a first limiting part, the first limiting part comprises a first section, a second section, a third section and a fourth section, the first section is connected with the second section and is arranged in an included angle, one end of the first section, which is far away from the second section, is connected with the third section, one end of the second section, which is far away from the first section, is connected with the fourth section, the fourth section is parallel to the third section, and the elastic body can be clamped and limited in a matching manner.

In one embodiment, the limiting assembly further comprises a second limiting member, the second limiting member comprises a fifth section, a sixth section and a seventh section, two ends of the fifth section are respectively connected with the sixth section and the seventh section, the sixth section and the seventh section are parallel to each other, and the elastic body can be clamped and limited to automatically expand in a matching manner.

In one embodiment, the throwing device further comprises a winding wheel, the traction rope is wound on the winding wheel, and the winding wheel can rotate to wind and unwind the traction rope.

In one embodiment, the reel is provided with a rocker, and the rocker can drive the reel to rotate.

In one embodiment, the dispensing device further comprises a plunger detachably inserted into the side of the base facing away from the elastic body.

In one embodiment, the dispensing device further comprises a second elastic spacer connected to an end of the plunger remote from the first elastic spacer, the second elastic spacer having a smaller diameter in the expanded state than the first elastic spacer.

Compared with the prior art, the invention has the beneficial effects that: the haulage rope that the throwing device included connects eccentric hook and spacing subassembly simultaneously, and eccentric hook connects first elastic isolation spare, and spacing subassembly joint constraint first elastic isolation spare, avoids first elastic isolation spare to open in advance. The operator can pull and release the haulage rope to make first elastic isolation piece drop in the big gun hole, when dropping to the target position in the big gun hole, reduce the height of haulage rope, so that eccentric hook breaks away from first elastic isolation piece, pull up the haulage rope again, drive spacing subassembly and slide away first elastic isolation piece, thereby first elastic isolation piece automatic expansion and joint are in the pore wall of big gun hole, can pull back haulage rope, eccentric hook and spacing subassembly on this moment, it is quick convenient to drop first elastic isolation piece, can be directed to drop to target position and be convenient for retrieve haulage rope, eccentric hook and spacing subassembly, convenient to use.

Drawings

FIG. 1 is a schematic view of the structure of a delivery device of the present invention;

FIG. 2 is a schematic illustration of the connection of the isolation structure to the launch structure of the present invention;

FIG. 3 is a schematic structural view of an isolation structure of the present invention;

FIG. 4 is a schematic view of the structure of the delivery structure of the present invention;

FIG. 5 is a schematic view of the structure of the eccentric hook of the present invention;

FIG. 6 is a schematic view of the first limiting member of the present invention;

FIG. 7 is a schematic view of a second stop member according to the present invention;

FIG. 8 is a schematic view of the structure of the launching device of the present invention when the launching device is positioned in a blast hole;

fig. 9 is a schematic view of the structure of the present invention in a blast hole after the putting structure is fully opened.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily apparent, a more particular description of the invention briefly described above will be rendered by reference to the appended drawings. It is apparent that the specific details described below are only some of the embodiments of the present invention and that the present invention may be practiced in many other embodiments that depart from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the present invention provides a delivery device 100 for placement into a borehole of a mine to isolate an explosive from groundwater within the borehole, thereby avoiding the impact of the explosive being wetted by groundwater to the blast.

The throwing device 100 comprises an isolation structure 101 and a throwing structure 102, the throwing structure 102 is detachably connected to the isolation structure 101, the throwing structure 102 can drive the isolation structure 101 to be placed in a blast hole dug in advance in a mine, when the isolation structure 101 is placed ready, the throwing structure 102 can be separated from the isolation structure 101, and the isolation structure 101 is independently reserved in the blast hole. At this time, the explosive can be put in the top of the isolation structure 101, and the isolation structure 101 can isolate the explosive at the top from the groundwater at the bottom of the isolation structure, so as to avoid the explosive from being soaked by the groundwater, thereby enabling the explosive to be fully exploded.

The isolation structure 101 comprises a first elastic isolation member 1, a second elastic isolation member 2 and a plunger 3, wherein two ends of the plunger 3 are detachably inserted into the first elastic isolation member 1 and the second elastic isolation member 2, and in other embodiments, two ends of the plunger 3 can be connected to the first elastic isolation member 1 and the second elastic isolation member 2 in a fixed connection manner.

Referring to fig. 3, the first elastic spacer 1 includes a base 11 and an elastic body 12 connected, and the elastic body 12 is disposed around the peripheral side of the base 11 so that the elastic body 12 can sufficiently abut against the wall of the blast hole when being opened.

The base 11 is provided with a clamping hole 111 on one side facing away from the elastic body 12, and the clamping hole 111 is used for being detachably connected with the plunger 3. The clamping hole 111 penetrates through the base 11, so that powder explosive located on the base 11 can be filled into the plunger 3 through the clamping hole 111.

The base 11 is provided with a stress rope 13, two ends of the stress rope 13 are connected with the base 11, a traction hole 14 is formed between the base 11 and the stress rope 13, and the traction hole 14 can be used for connecting the throwing structure 102 with the stress rope so as to drive the first elastic isolation piece 1 or the whole isolation structure 101 to be placed in the blast hole.

The elastomer 12 is of an elastic material, such as rubber or silicone, so that the elastomer 12 has good elastic deformation capability and can be rapidly opened when unbound.

The second elastic isolation piece 2 is different from the first elastic isolation piece 1 only in that the diameter of the elastic body of the second elastic isolation piece 2 in the open state is smaller than that of the elastic body 12 of the first elastic isolation piece 1 in the open state, and smaller than that of the blast hole, so that the second elastic isolation piece 2 is prevented from being blocked in the blast hole to hinder the lowering of the isolation structure 101 in the process of lowering the isolation structure 101 in the blast hole.

It should be emphasized that the diameter of the elastic body 12 of the first elastic spacer 1 in the open state is larger than the diameter of the blast hole, so that the elastic body 12 can be clamped and fixed on the wall of the blast hole in the open state.

The plunger 3 is the cavity form of both ends open-ended, and when the joint hole 111 grafting of plunger 3 and first elastic isolation piece 1, joint hole 111 and the inside intercommunication of plunger 3, the powdered explosive that is located on the first elastic isolation piece 1 can fill in the plunger 3 inside through joint hole 111, reaches the second elastic isolation piece 2 of plunger 3 other end again, and the explosive can be worn out from second elastic isolation piece 2. Therefore, after the isolating structure 101 is arranged at the blast hole, a part of explosive is poured into the top of the isolating structure 101, then an isolating structure 101 can be arranged on the explosive, the explosive can be poured into the isolating structure 101 which is arranged again, and the explosive far away from the bottom of the blast hole is not easy to contact with underground water, so that the possibility of full blasting of the explosive above can be ensured. In addition, the plunger 3 of the isolation structure 101 is filled with explosive, and the explosive at the upper end and the lower end of the isolation structure 101 are connected, which is equivalent to the effect that the isolation structure 101 can also play a role of connecting the explosive, so that the explosive at the bottom of the isolation structure 101 can transfer the explosive at the top of the isolation structure 101 to burn and explode after burning and exploding, thereby improving the explosion power.

Referring to fig. 4, the delivery structure 102 includes a traction rope 4, an eccentric hook 5, a limiting component 6 and a reel 7, wherein the eccentric hook 5 and the limiting component 6 are both arranged on the traction rope 4, the traction rope 4 is wound on the reel 7, and the winding and unwinding of the traction rope 4 can be controlled through the rotation of the reel 7. The eccentric hook 5 is used for hooking the stress rope 13 of the first elastic isolating piece 1, so that the isolating structure 101 is pulled to be lowered in the blast hole. The limiting component 6 is used for detachably clamping the elastic body 12 of the first elastic isolation piece 1 so as to bind the elastic body 12, and the phenomenon that the elastic body 12 naturally expands in advance to clamp the wall of a blast hole to influence the lowering of the isolation structure 101 is avoided. The whole isolation structure 101 can be controlled to gradually drop in the blast hole by winding and unwinding the traction rope 4 through the winding wheel 7. When the isolation structure 101 is lowered to the target position of the blast hole, the traction rope 4 is released through the reel 7, at the moment, the reel 7 is lowered, the eccentric hook 5 is lowered along with the lowering, the eccentric hook 5 is separated from the stress rope 13 of the first elastic isolation piece 1, the reel 7 is rotated, the traction rope 4 is wound, the traction rope 4 drives the limit component 6 to move upwards, so that the limit component 6 slides away from the elastic body 12, the elastic body 12 is automatically opened after being released from the constraint, the isolation structure 101 is clamped on the wall of the blast hole, and the isolation structure 101 is fixed in the blast hole.

The traction rope 4 is provided with scale marks so as to prompt an operator of the releasing length of the traction rope 4.

The reel 7 is also provided with a rocker 71, and the rocker 71 can be held by hands to drive the reel 7 to rotate, so that the traction rope 4 can be rapidly wound and unwound.

Referring to fig. 5, the eccentric hook 5 includes a body 51 and a hook 52 connected, and the body 51 and the hook 52 are integrally formed, and it is also understood that a portion of the eccentric hook 5 is bent to form the body 51 and another portion is bent to form the hook 52.

The main body 51 is formed with a connection hole 511 by itself, and the connection hole 511 is used for tying the traction rope 4, so that the connection between the traction rope 4 and the eccentric hook 5 is more stable.

The hook 52 comprises a first body 521 and a second body 522 connected to each other, wherein the first body 521 is connected to the main body 51, and the second body 522 is U-shaped and is used for hooking a stress rope on the base 11 of the first elastic isolation member 1 to pull the whole isolation structure 101 to be lowered in the blast hole. In addition, the first body 521 and the second body 522 are disposed at an obtuse angle on the sides, such that the center of gravity of the main body 51 is not parallel to the straight line where the center of gravity of the hook 52 is located and the plumb line, wherein the plumb line is the track line of the weight during the natural falling process.

Referring to fig. 6 and 7, the spacing assembly 6 includes a first spacing member 61 and a second spacing member 62, and the first spacing member 61 and the second spacing member 62 are used for clamping the elastic body 12 binding the first elastic isolation member 1 in different directions, so as to avoid the first elastic isolation member 1 from clamping the wall of the blast hole before being lowered to the target position to affect the lowering. In other embodiments, the spacing assembly 6 includes a non-limiting number of spacing members, such as three or more, to more stably retain the elastomer 12.

The first limiting member 61 includes a first section 611, a second section 612, a third section 613 and a fourth section 614, the first section 611 and the second section 612 are connected and are provided with an included angle, one end of the first section 611 far away from the second section 612 is connected with the third section 613, one end of the second section 612 far away from the first section 611 is connected with the fourth section 614, the fourth section 614 and the third section 613 are parallel to each other, and the elastic body 12 can be bound in a matching manner, so as to avoid the elastic body 12 from expanding automatically. In other embodiments, the fourth segment 614 and the third segment 613 may also be disposed at an angle, for example, an end of the fourth segment 614 remote from the second segment 612 and an end of the third segment 613 remote from the first segment 611 may be disposed closer together such that the fourth segment 614 and the third segment 613 are disposed at an incline.

The included angle formed by the first segment 611 and the second segment 612 is an obtuse angle, and in other embodiments, the included angle may be a right angle or an acute angle, which is not limited herein. The connection between the first segment 611 and the second segment 612 is typically used to connect with the traction rope 4 such that the first restraint 61 is tied to the traction rope 4.

The second limiting member 62 includes a fifth segment 621, a sixth segment 622 and a seventh segment 623, wherein two ends of the fifth segment 621 are respectively connected with the sixth segment 622 and the seventh segment 623, and the sixth segment 622 and the seventh segment 623 are parallel to each other and can cooperatively bind the elastic body 12 to avoid the elastic body 12 from automatically expanding. In other embodiments, the sixth segment 622 and the seventh segment 623 may also be disposed at an included angle, for example, the end of the sixth segment 622 distal from the fifth segment 621 and the end of the seventh segment 623 distal from the fifth segment 621 may be disposed closer together such that the sixth segment 622 and the seventh segment 623 are disposed at an incline.

Referring to fig. 8 and 9, schematic diagrams of the isolation structure 101 are shown before and after un-binding, respectively. Some explosive 9 can be filled in the bottom of the blast hole 8 in advance, and an electronic detonator and an initiating bomb are pre-buried in the explosive 9, the electronic detonator and the initiating bomb are connected together, the electronic detonator is connected with one end of a detonator lead, and the other end of the detonator lead extends to the ground outside the blast hole along the blast hole.

The stick-shaped solids were then extended into the blasthole to test the distance from the top surface of the explosive 9 to the opening of the blasthole. Then the isolation structure 101 is lowered into the blast hole, scales on the haulage rope 4 are observed while the isolation structure is lowered until the bottom of the second elastic isolation piece 2 reaches the top surface of the explosive 9, the haulage rope 4 is stopped to be released, the haulage rope 4 is controlled so that the eccentric hook 5 is separated from the stress rope 13 of the first elastic isolation piece 1, then the haulage rope 4 is pulled upwards to drive the first limiting piece 61 and the second limiting piece 62 to slide away from the elastic body 12 of the first elastic isolation piece 1, and the elastic body 12 is released from constraint and automatically opened (shown in fig. 9) to be clamped with the hole wall of the blast hole. The first elastic spacer 1 at this time not only functions as a fixed spacer structure 101, but also serves to support the explosive charge that continues to be charged into the blasthole.

When the explosion is ready, the detonator leads extending from the blast hole can be ignited, the detonator leads ignite the electronic stand pipe, the electronic detonator ignites the detonating bomb, and the detonating bomb ignites the explosive, so that all the explosive in the blast hole explodes through the interlocking ignition.

In an alternative embodiment, the isolation structure 101 may comprise only the first elastic isolation member 1, or only the first elastic isolation member 1 and the plunger 3, and also function to isolate groundwater.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications, substitutions and improvements can be made by those skilled in the art without departing from the spirit of the invention, and are intended to be within the scope of the invention. Accordingly, the protection scope of the present invention is subject to the claims.

Claims

1. A delivery device, comprising:

a traction rope;

the eccentric hook is arranged on the traction rope;

the limiting assembly is arranged on the traction rope;

2. The dispensing device of claim 1, wherein the first elastic spacer further comprises a force-bearing rope, wherein two ends of the force-bearing rope are connected with the base and form a traction hole with the base, and the eccentric hook is detachably connected with the traction hole.

3. The throwing device according to claim 1, wherein the eccentric hook comprises a main body and a hook which are connected, the main body is surrounded by the main body itself to form a connecting hole, and the gravity center of the main body is not parallel to the straight line and the plumb line where the gravity center of the hook is located.

4. The delivery device of claim 1, wherein the limiting assembly comprises a first limiting member comprising a first section, a second section, a third section and a fourth section, wherein the first section is connected with the second section and is arranged at an included angle, one end of the first section away from the second section is connected with the third section, one end of the second section away from the first section is connected with the fourth section, and the fourth section is parallel to the third section and can cooperate with clamping to limit the automatic expansion of the elastomer.

5. The delivery device of claim 4, wherein the limiting assembly further comprises a second limiting member, the second limiting member comprises a fifth segment, a sixth segment and a seventh segment, two ends of the fifth segment are respectively connected with the sixth segment and the seventh segment, the sixth segment and the seventh segment are parallel to each other and can cooperate with clamping to limit the automatic expansion of the elastic body.

6. The delivery device of claim 1, further comprising a reel, wherein the traction rope is wound around the reel, and wherein the reel is rotatable to unwind the traction rope.

7. The delivery device of claim 6, wherein a rocker is provided on the reel, the rocker being capable of driving the reel to rotate.

8. The dispensing device of claim 1, further comprising a plunger removably insertable into a side of the base facing away from the elastomer.

9. The delivery device of claim 8, further comprising a second elastomeric isolator connected to an end of the plunger distal from the first elastomeric isolator, the second elastomeric isolator having a smaller diameter in an expanded state than the first elastomeric isolator in an expanded state.

10. The delivery device of claim 9, wherein the plunger is hollow with two ends open so that the plunger communicates with the first and second elastic spacers.