CN216815216U

CN216815216U - Single-hole interval type blasting mine slope protection structure

Info

Publication number: CN216815216U
Application number: CN202220138779.3U
Authority: CN
Inventors: 王杨; 夏文丽; 陈露爽; 于清福
Original assignee: Benxi Liuhe Construction Engineering Co ltd
Current assignee: Benxi Liuhe Construction Engineering Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-24
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a single-hole interval type blasting mine side slope protection structure, which belongs to the technical field of slope blasting and comprises main blast holes arranged on a side slope and buffer holes arranged between adjacent main blast holes, wherein the main blast holes are sequentially and alternately provided with first fillers and second fillers from the bottom to the top, a protection device is arranged in each buffer hole and comprises a barrel, a switching cavity is arranged at the upper end of each barrel, an air inlet pipe is arranged at the upper end of each switching cavity, an inflatable bag is arranged in an inner cavity of each barrel, a contact pressing piece is annularly arranged on the outer side surface of each inflatable bag, the upper end of each inflatable bag is connected with an air supplement cover through a connecting pipe, the air supplement cover is arranged in each switching cavity, and a floating ball is arranged in a space formed by the air supplement cover and the connecting pipe. This application adopts in proper order to the side slope blasting, has reduced the blasting to the damage of side slope, has improved the security of blasting, and promotes the even breakage of pore wall and drill way rock, can prevent again that the big gun hole from taking place to punch a hole, improves the blasting effect, has reduced the blasting in-process, the spoilage of side slope.

Description

Single-hole interval type blasting mine slope protection structure

Technical Field

The utility model relates to the technical field of slope blasting, in particular to a single-hole interval type blasting mine slope protection structure.

Background

In the development process of a mine, the blasting technology is of vital importance, the blasting is the first gateway of mining, great potential safety hazards can be caused if the blasting control is not good, and the production cost of the whole mine is directly influenced by the quality of blasting quality. The traditional continuous charging mode has many problems, such as large blasting vibration, uneven bulk degree and the like, and the method for solving the problems is to use air to perform segmented charging at intervals, namely adding air columns among explosives to achieve better blasting effect. Air interval sectional charging for the explosive quantity reduces, not only reduces blasting vibrations, noise, prolongs explosive blasting energy effect time simultaneously, makes the rock breakage more even, reduces mountain flour content.

However, in the blasting process, the strong impact generated by blasting easily affects other parts of the side slope, so that the hole wall and the rock at the hole opening are easily broken, and the phenomenon of blast hole punching easily occurs. In order to solve the problem, a single-hole interval type blasting mine slope protection structure is provided.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a single-hole interval type blasting mine slope protection structure, which can solve the problems in the background technology.

2. Technical scheme

In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a haplopore compartment blasting mine side slope protection architecture, is including seting up at the main big gun hole of side slope and locating the buffering hole between the adjacent main big gun hole, main big gun hole is equipped with first filler and second filler from bottom to top in proper order in turn, the inside protection device that is equipped with of buffering hole, protection device includes the barrel, the barrel upper end is equipped with the switching chamber, switching chamber upper end is equipped with the intake pipe, the barrel inner chamber is equipped with the gas cell, the gas cell outside is personally submitted the annular and is equipped with the touch-and-press part, the gas cell upper end passes through the connecting pipe and is connected with the tonifying qi cover, the switching intracavity portion is located to the tonifying qi cover, be equipped with the floater in the space that tonifying qi cover and connecting pipe are constituteed.

Preferably, the outer side surface of the air supply cover is annularly provided with an air inlet, and the air inlet is arranged above the connecting pipe.

Preferably, a damping piece is arranged between the inflatable bag and the cylinder body, and the damping piece is arranged inside the cylinder body.

Preferably, the outer diameter of a cavity formed by adjacent contact pressing parts is equal to the inner diameter of the buffer hole, and the contact pressing parts are in contact with the inner side wall of the buffer hole.

Preferably, a distance is arranged between each main blast hole and each buffer hole, and the distance between each buffer hole and each adjacent main blast hole is equal.

Preferably, the outer diameter of the floating ball is larger than the inner diameter of the connecting pipe.

3. Advantageous effects

(1) According to the single-hole interval type blasting mine side slope protection structure, 4 times of explosives are filled in the main blasting holes at intervals, the explosives are separated by the drilled rock powder, 4 single holes are blasted, 4 electric detonators are used in each hole, 4 detonation times are set, the side slope is blasted in sequence, the damage of blasting to the side slope is reduced, the blasting safety is improved, and the single-hole interval type blasting mine side slope protection structure is simple to operate, convenient to construct and low in cost.

(2) According to the single-hole interval type blasting mine side slope protection structure, in the blasting process, the touch pressing piece can move inwards at the same time due to strong impact force and extrude the inflatable bag, a small amount of gas in the inflatable bag flows upwards through the connecting pipe, the floating ball is blown to be separated from the connecting pipe, at the moment, the gas can be blown inwards through the gas inlet through the gas supply equipment, the impact on the touch pressing piece is relieved, the uniform crushing of rock on the hole wall and the hole opening can be promoted, the blast hole can be prevented from being punched, the blasting effect is improved, and the damage rate of the side slope in the blasting process is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the distribution of main blastholes and buffer holes in the utility model;

FIG. 2 is a schematic main sectional view of the protection device of the present invention;

FIG. 3 is an enlarged view at M of the structure of the present invention;

FIG. 4 is a schematic cross-sectional view of the cover for replenishing gas of the present invention.

Reference numerals: 1. a main blast hole; 101. a second filler; 102. a first filler; 2. a shock absorbing member; 3. a buffer hole; 4. a protection device; 41. a barrel; 42. a transfer cavity; 43. an air inlet pipe; 44. a gas supplementing cover; 45. an air-filled bag; 46. a contact pressing piece; 47. a connecting pipe; 48. an air inlet; 49. a floating ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a second feature of an inlet feature may include the inlet and the second feature being in direct contact, or may include the inlet and the second feature not being in direct contact but being in contact with another feature therebetween. Also, the terms "over," "above," and "above" the second feature include the inlet feature being directly above and obliquely above the second feature, or simply indicating that the inlet feature is at a higher level than the second feature. The terms "under", "below" and "beneath" of an inlet feature encompass the inlet feature being directly under and obliquely below the second feature, or simply meaning that the inlet feature is less level than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1-4, the single-hole interval type blasting mine slope protection structure comprises main blast holes 1 arranged on the slope and buffer holes 3 arranged between adjacent main blast holes 1, wherein a distance is arranged between each main blast hole 1 and each buffer hole 3, and the distance between each buffer hole 3 and each adjacent main blast hole 1 is equal. Be equipped with first filler 102 and second filler 101 in proper order in turn from bottom to top at main big gun hole 1, wherein, first filler 102 is filled for explosive powder, and second filler 101 is drilling rock flour, through filling 4 times explosives through the interval in main big gun hole 1 to separate between the explosive through drilling rock flour, the haplopore four rings, every downthehole 4 electronic detonator that generate electricity that use sets up 4 detonation time, to slope blasting in proper order, reduced the damage of blasting to the side slope, the security of blasting has been improved.

Wherein, be equipped with protection device 4 in buffer hole 3 inside, protection device 4 includes barrel 41, wherein, the external diameter of barrel 41 is less than the internal diameter of buffer hole 3, and be equipped with the interval between buffer hole 3 and the barrel 41, be equipped with switching chamber 42 at barrel 41 upper end, switching chamber 42 and barrel 41 fixed weld, wherein, switching chamber 42 comprises conical ring and cylinder ring welding, the conical ring sets up at switching chamber 42 and the barrel 41 relative tip, adopt the setting of conical ring, can improve switching chamber 42's support stability. The cylindrical ring is designed in a T shape, namely the outer diameter of the upper end part of the cylindrical ring is larger than that of the end part opposite to the conical ring. An air inlet pipe 43 is arranged at the upper end part of the switching cavity 42, the outer end part of the air inlet pipe 43 is connected with an air supply device, an inflatable bag 45 is arranged in the inner cavity of the cylinder body 41, a damping piece 2 is arranged between the inflatable bag 45 and the cylinder body 41, and the damping piece 2 is arranged inside the cylinder body 41. The outer side surface of the inflatable bag 45 is annularly provided with contact parts 46, the outer diameter of a cavity formed by adjacent contact parts 46 is equal to the inner diameter of the buffer hole 3, and the contact parts 46 are in contact with the inner side wall of the buffer hole 3. In the initial state, the air-packing bag 45 is filled with a small amount of gas, and the filled gas can make the contact member 46 contact the inner sidewall of the buffer hole 3. The upper end of the air bag 45 is connected with the air supplement cover 44 through a connecting pipe 47, the connecting pipe 47 is inserted into the lower end part of the switching cavity 42, an air inlet hole 48 is annularly formed in the outer side surface of the air supplement cover 44, and the air inlet hole 48 is arranged above the connecting pipe 47. The air supplement cover 44 is arranged in the switching cavity 42, and a floating ball 49 is arranged in a space formed by the air supplement cover 44 and the connecting pipe 47. The outer diameter of the float ball 49 is larger than the inner diameter of the connection pipe 47. At the blasting in-process, powerful impact force can make touch piece 46 move to the inboard simultaneously to extrusion gas cell 45, a small amount of gas in the gas cell 45 passes through connecting pipe 47 and flows upwards, blows floater 49 and breaks away from connecting pipe 47, at this moment, through air supply equipment, alright with gaseous 48 inside blows through the air inlet with, alleviates the impact that touch piece 46 received, can promote the even breakage of pore wall and drill way rock, can prevent again that the big gun hole from taking place to punch a hole, improves the blasting effect.

The concrete application process of the single-hole interval type blasting mine slope protection structure is as follows: according to the single-hole interval type blasting mine slope protection structure, during construction operation, main blast holes 1 are drilled at equal intervals, and buffer holes 3 are drilled between adjacent main blast holes 1; the protection device 4 is prevented from being arranged inside the buffer hole 3, the floating ball 49 is manually stirred, gas of a gas supply device is filled into the gas-filled bag 45 through the gas inlet pipe 43, the touch pressing piece 46 can be contacted with the inner side wall of the buffer hole 3, the inlet of the connecting pipe 47 can be automatically blocked through the floating ball 49, the gas supply device is always communicated with the gas inlet pipe 43 and applies pressure to the gas inlet pipe 43, the detonation of explosive is sequentially arranged from bottom to top in the blasting process, the strong impact force can enable the touch pressing piece 46 to simultaneously move inwards and extrude the gas-filled bag 45, a small amount of gas in the gas-filled bag 45 flows upwards through the connecting pipe 47, the floating ball 49 is blown to be separated from the connecting pipe 47, at the moment, the gas can be blown inwards through the gas inlet 48 through the gas supply device, the impact on the touch pressing piece 46 is relieved, the blast hole is prevented from being punched, and the blasting process is reduced, the rate of slope damage.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a single hole interval blasting mine side slope protection architecture, includes main big gun hole (1) of seting up at the side slope and locates buffer hole (3) between adjacent main big gun hole (1), its characterized in that: main big gun hole (1) is equipped with first filler (102) and second filler (101) from bottom to top in proper order in turn, inside protection device (4) of being equipped with of buffer hole (3), protection device (4) include barrel (41), barrel (41) upper end is equipped with switching chamber (42), switching chamber (42) upper end is equipped with intake pipe (43), barrel (41) inner chamber is equipped with gas cell (45), the surface is the annular and is equipped with touch-and-press spare (46) outside gas cell (45), gas cell (45) upper end is connected with tonifying qi cover (44) through connecting pipe (47), inside switching chamber (42) was located to tonifying qi cover (44), be equipped with floater (49) in the space that tonifying qi cover (44) and connecting pipe (47) are constituteed.

2. The single-hole spaced blasting mine slope protection structure as claimed in claim 1, wherein the outer side surface of the air compensation cover (44) is annularly provided with air inlet holes (48), and the air inlet holes (48) are arranged above the connecting pipe (47).

3. The mine slope protection structure for single-hole spaced blasting according to claim 1, wherein a shock absorbing member (2) is arranged between the inflatable bag (45) and the cylinder body (41), and the shock absorbing member (2) is arranged inside the cylinder body (41).

4. The mine slope protection structure for spaced single-hole blasting according to claim 1, wherein the outer diameter of a cavity formed by adjacent contact elements (46) is equal to the inner diameter of the buffer hole (3), and the contact elements (46) are in contact with the inner side wall of the buffer hole (3).

5. The mine slope protection structure adopting single-hole spaced blasting according to claim 1, wherein a distance is provided between each main blast hole (1) and each buffer hole (3), and the distance between each buffer hole (3) and the adjacent main blast hole (1) is equal.

6. The mine slope protection structure for single hole spaced blasting according to claim 1, wherein the outer diameter of the floating ball (49) is larger than the inner diameter of the connecting pipe (47).