WO2012015193A2

WO2012015193A2 - Ammonium nitrate fuel oil explosive filling case and method for rock blasting using same

Info

Publication number: WO2012015193A2
Application number: PCT/KR2011/005365
Authority: WO
Inventors: 이진성; 황병기
Original assignee: 성평건설주식회사
Priority date: 2010-07-30
Filing date: 2011-07-21
Publication date: 2012-02-02
Also published as: KR101022251B1; WO2012015193A3

Abstract

The present invention relates to an ammonium nitrate fuel oil explosive filling case and to a method for rock blasting using same for standardizing the amount of explosive to be filled and blasting a base rock and reducing vibration and noise when blasting. To this end, the ammonium nitrate fuel oil explosive filling case of the present invention comprises: an accommodation space (S1) inside the filling case so that the ammonium nitrate fuel oil explosive (1) can be filled therein; and a pocket housing (110) formed in a tube shape with an open upper portion, having a smaller diameter than a blasting hole (2) and inserted into the blasting hole (2), wherein the ammonium nitrate fuel oil explosive (1) particles used for blasting rocks are standardized. The method for rock blasting using the ammonium nitrate fuel oil filling case comprises the following steps: establishing a plan for shattering a rock; drilling a plurality of the blasting holes (2) on the rock to be blasted; filling a tubular case (100) with a predetermined amount of the ammonium nitrate fuel oil explosive (1) required for shattering the rock, and inserting the case (100) into the blasting hole (2); inserting a priming explosive (300) having a detonator (310) connected thereto into the inserted case (100); tamping the remaining space in the blast hole (2) with stemming material (320); and igniting the detonator (310) to shatter the rock to be blasted.

Description

Anpo-explosives filling case and rock blasting method using the same

The present invention relates to an ophthalmic explosives filling case and a rock blasting method using the same, and more particularly, an ophthalmic explosives filling case capable of quantifying the filling amount of explosives during rock blasting and reducing vibration and noise generated during blasting. It relates to the rock blasting method used.

In general, blasting refers to the destruction of objects in mines, coal mines, and civil engineering works. Although there is a blast of concrete structures, the blasting is most often carried out to destroy rocks in mines and quarries. In rock blasting, it is common to drill a hole in the rock and load it with an explosive. Today, blasting works can be done from crushing large chunks of rock to large scale blasts of tens of thousands of tonnes of rock at once, with each application being designed and constructed with a defined method of security.

In order to drill the blast hole which loads explosives, a rock drill and a drill are used. In blasting, holes with a diameter of several centimeters and a depth of several m are used, and the type and amount of explosives used, the number and arrangement of blast holes to be expelled, are determined after sufficient consideration depending on the nature of the rock and the purpose of blasting.

Among the various types of explosives used for such blasting, the anpo (ammonium nitrate fuel oil, ANFO) explosives are the most inexpensive and stable among explosives, but has the disadvantage of difficulty in the field application. Anpo explosives are weak in water resistance, so they are not easily applied to the topography (ground water and cavity) of Korea due to their tight loading, regardless of the shape of the blast hole, which is perforated during work. Hard to calculate That is, it is difficult to count the exact amount of explosives to be filled. In this case, there is a problem that the explosive charge is filled in the blast hole more than the quantity required for rock blasting or scattering pollution due to excessive gas pressure, which leads to an increase in cost and blast pollution in the blasting work.

In addition, an eye gun explosive is characterized by a large amount of gas and a slow speed in preparation for the same amount as an emulsion explosive. This means that the speed of explosion (dynamic effect) is small and the amount of gas (static effect) is large in the rock blasting mechanism.

However, because the same amount is made for the same dose, the above effect can not be obtained at the same amount of spores, the risk of scattering due to overloading and excessive gas pressure due to an overload of an anpoblast, The work will be done without considering the characteristics of the explosives such as the occurrence of a large explosive. As a result, it is difficult to apply an explosives in the field.

For this reason, Anpo explosives are currently used in large blasting (regions without complaints).

The present invention has been made to solve the above problems, can be quantified the granular ophthalmic explosives filled in the blast hole during rock blasting, and can be filled with an ophthalmic explosives filling case that can reduce the vibration and noise generated during blasting and rock using the same The purpose is to provide a blast method.

In addition, another object of the present invention is to reduce the use of the explosives by forming an air space in the vertical direction inside the blast hole, and to damp the vibrations during blasting, as well as to fundamentally reduce the backbreaker rock during blasting using the explosives An explosive charge filling case and a rock blasting method using the same to enable a concentrated explosion toward the free surface or fracture direction of the.

An eye-popping medicine filling case of the present invention for realizing the object as described above, the storage space is provided to be filled with an eye-popping medicine and is formed in a tube shape that is open on the upper side is formed with a smaller diameter than the blast hole is Including a pocket housing inserted into the blast hole, characterized in that the quantitative ocular explosives used for rock blasting.

In this case, the pocket housing is formed of a transparent vinyl material that is waterproof, and the outer circumference of the pocket housing is characterized in that the scale display portion is formed so that the amount of the explosive charge filled in the storage space can be measured.

In addition, the lower edge portion of the pocket housing includes a round portion formed to be rounded in a gentle curve.

In addition, the inner side of the pocket housing further includes a weight added.

In addition, the storage space further includes a hollow air space section formed in addition to the space filled with the captive explosives at least bisected by a diaphragm formed in the inner longitudinal direction of the pocket housing.

A tube-shaped pocket housing having a storage space provided therein for filling the capillary explosives and having a fastening portion formed on at least one side of the upper side and the lower side to be connected to one or more in the longitudinal direction; A hemispherical lower cap coupled to the lower side of the pocket housing; An upper cap coupled to an upper side of the pocket housing to seal the storage space; And a plurality of spacers coupled to the outer circumference of the pocket housing at predetermined intervals in a longitudinal direction to form an air space part in the blast hole.

In this case, the fastening portion, at least one fastening hole formed to be spaced apart at an angle to the upper outer periphery of the pocket housing; And a fastening protrusion protruding to correspond to a lower outer circumference of the pocket housing so that the fastening hole can be fitted into the fastening hole.

In addition, the inside of the lower cap further includes a weight added with a predetermined weight.

In addition, the spacer, the coupling portion is open at one side so as to be fitted to the outer circumference of the pocket housing; And a protruding portion protruding radially from one side of the coupling portion along a central axis line to form an air space portion in the blast hole.

A method for rock blasting using an explosive charge filling case, the method comprising: establishing a rock crushing plan; Drilling a plurality of blasting holes in the blasting target rock; Filling the tubular case with a predetermined ophthalmic explosive needed to break the rock and inserting the case into the blast hole; Inserting a full width drug connected to a primer on an upper side of the inserted case; Colorizing the remaining space of the blast hole with a color material; And detonating the primer to crush the blasting target rock.

A method of rock blasting using another capping agent filling case, the method comprising: establishing a rock crushing plan; Drilling a plurality of blasting holes in the blasting target rock; Inserting the case into the blast hole after filling the case into which the accommodating explosive is filled and the air space part formed by the diaphragm so that the explosion can be concentrated toward the free surface or the crushing direction of the rock; ; Inserting a full width drug connected to a primer on an upper side of the inserted case; Colorizing the remaining space of the blast hole with a color material; And detonating the primer to crush the blasting target rock.

In another method for rock blasting using an ophthalmic explosive charge case, the method comprising the steps of establishing a rock crushing plan; Drilling a plurality of blasting holes in the blasting target rock; Filling a tubular case with a predetermined explosive charge required to break the rock; Coupling a plurality of spacers spaced apart in one longitudinal direction of the case; Inserting a case in which the spacer is coupled into the blasting hole so as to intensively explode toward the free surface or the crushing direction of the rock to form an air space in the blasting hole; Inserting a full width drug connected to a primer on an upper side of the inserted case; Colorizing the remaining space of the blast hole with a color material; And detonating the primer to crush the blasting target rock.

The above-mentioned explosive filling method of an ophthalmic explosive according to the present invention and the rock blasting method using the same can increase the blasting efficiency by increasing the length of the medicine cabinet compared to the same amount by quantification considering the characteristics of the ophthalmic explosive. , Vibration blasting effect is possible by cushion blasting, and accordingly, it is possible to control resistance line, space distance, fabric mill, dose, weak diameter, and perforation diameter according to the characteristics of the ocular explosives, further improving the quality of blasting. There is an advantage to this.

1 is a first embodiment of an ophthalmic explosives filling case according to the present invention,

2 is a cross-sectional view taken along line II of FIG. 1;

3 is an installation state of the capsule filling case according to the first embodiment of the present invention,

Figure 4 is a second embodiment of the capsule filling case according to the present invention,

5 is an exploded perspective view of a filling case according to a second embodiment of the present invention;

6 is a detailed view of the connection portion of the filling case according to the second embodiment of the present invention,

7 is a perspective view showing various types of pocket housing according to a second embodiment of the present invention;

8 is a plan view showing a perspective view and an installation state of a spacer according to a second embodiment of the present invention;

9 is an installation state diagram of the capsule filling case according to a second embodiment of the present invention.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, it should be noted that in adding reference numerals to the elements of each drawing, the same elements are denoted by the same reference numerals as much as possible even if they are shown on different drawings.

FIG. 1 is a first embodiment of an ophthalmic explosives filling case according to the present invention, FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1, and FIG. 3 is an installation state diagram of the ophthalmic explosives filling case according to the first embodiment of the present invention.

1 and 2, an ophthalmic explosive charge case 100 according to the first embodiment of the present invention is to be able to quantify the granular ophthalmic explosive (1) used for rock blasting, such a filling case ( 100 is provided with a receiving space (S1) therein so that the filling drug (1) is filled and is provided with a tube-shaped pocket housing 110 that the upper side is opened. In this case, the pocket housing 110 is formed with a smaller diameter than the blasting hole 2 so that the pocket housing 110 can be smoothly inserted into the blasting hole 2.

Here, preferably, the pocket housing 110 may be made of transparent vinyl or plastic material. The pocket housing 110 of such a material can prevent the intraocular explosive drug 1 having weak water resistance from being melted by water inside the blast hole 2. Such a pocket housing 110 is formed long in the longitudinal direction can be used to cut in accordance with the depth of the blasting hole (2), can be standardized in various lengths corresponding to the depth of the blasting hole (2) can be selectively used.

In addition, a scale display portion 111 may be displayed on one side of the outer side of the pocket housing 110 in the longitudinal direction. The scale display unit 111 is able to measure the amount of the ocular explosives (1) filled in the storage space (S1).

In addition, the lower edge portion of the pocket housing 110 is provided with a round portion 113 is formed to be rounded in a gentle curve. The round portion 113 prevents the bottom edge of the pocket housing 110 from being protruded into the inner circumference of the blasting hole 2 in the process of inserting the pocket housing 100 into the perforated blasting hole 2. Play a role.

In addition, the weight 120 may be further inserted into the inner lower side of the pocket housing 110. The weight 120 helps to easily insert the pocket housing 110 containing the capsule width (1) having a specific gravity smaller than the water when water in the blasting hole (2) to the bottom surface of the blasting hole (2) Given.

Here, preferably, the weight 120 may be made of metal or rock, which is a weight body, and the weight 120 may have a structure formed integrally with the pocket housing 110.

Alternatively, although not shown in the figure, the weight 120 may be connected through various connection means such as adhesive tape or adhesive so that selective mounting may be made at the bottom of the pocket housing 110 according to a situation.

On the other hand, the storage space (S1) is divided into at least two by the diaphragm 131 formed in the inner longitudinal direction of the pocket housing 110, the hollow air space 130 is partitioned in addition to the space filled with the drug epoch (1). Is formed.

As shown in FIG. 3, the air space 130 reduces vibrations and noises in areas where the ground vibrations caused by the blasting work are concerned, while the explosives (1) are free surfaces of rocks. (3) Or it serves to allow intensive explosion in the direction of fracture. In other words, the air space 130 is to apply a vibration blasting (cushion blasting) which is a type of control blasting to enjoy a vibration reducing effect.

In this case, a spacer 133 having a predetermined size may be inserted into the air space 130 so as to maintain a shape of the air space 130.

* Alternatively, an air injection unit (not shown) may be provided at one side to inject air into the air space 130 in a sealed state by tying or capping the upper side of the pocket housing 110. The air injection unit may be sealed by adhesive or adhesive tape after air injection is completed in the air space 130.

Figure 4 is a second embodiment of the filling capsule case according to the present invention, Figure 5 is an exploded perspective view of the filling case, Figure 6 is a perspective view showing various kinds of pocket housing.

4 and 5, the capsule filling case 200 according to the second embodiment of the present invention includes a pocket housing 210, a lower cap 230, an upper cap 240, and a spacer 250. Can be configured.

Referring to the configuration of the present invention in detail as follows.

The pocket housing 210 is formed in a tubular shape in which a storage space S1 is formed therein so that a predetermined amount of the capsule width 1 can be filled, and the pocket housing 210 is connected to one or more in the longitudinal direction. . Here, preferably, the fastening portion 211 is formed on at least one side of the upper side and the lower side of the pocket housing 210 such that continuous coupling can be made in the longitudinal direction.

For example, the fastening part 211 is one or more fastening holes 211a formed to be penetrated at a predetermined angle apart from the upper outer circumference of the pocket housing 210, and a pocket housing (210) to be fitted to the fastening holes 211a. It may comprise a fastening protrusion 211b protruding to correspond to the lower outer periphery of the 210. In this case, the upper end of the pocket housing 210 enters the fastening protrusion 211b in the axial direction, and rotates the central axis at a predetermined angle with the center of rotation, so that the 'b' shaped shape can be fitted into the fastening hole 211b. Guide grooves 211c are formed.

Pocket housing 210 of such a structure is selectively used in combination with a plurality of corresponding to the depth of the blast hole (2).

In this case, the present invention illustrates and described the structure of the fastening hole 211a and the fastening protrusion 211b fitted to the fastening part 211 as an example, but the structure of the fastening part 211 is selected by the user. According to the present invention, the present invention can be changed and applied in various ways, and the pocket housing 210 can be changed and applied to various structures including a fastening structure such as a screw thread composed of a male and a male, if the shape can be continuously coupled in the longitudinal direction. Of course.

In addition, the pocket housing 210 may be made of a transparent plastic material that looks inside, and the amount of the capsule width (1) filled in the storage space (S1) in the longitudinal direction of the outer pocket housing 210. The scale display unit 213 may be formed to be able to estimate.

Alternatively, the pocket housing 210 may be standardized to various lengths to selectively use a plurality of pocket housings 210 having different lengths L1, L2 to Ln to correspond to the depth of the blasting hole 2.

The pocket housing 210 can be used to fill the storage space (S1) of the quantitative explosives (1) required for rock blasting can reduce the cost required for rock blasting construction.

The lower cap 230 is formed in a hemispherical shape is coupled to the lower side of the pocket housing 210. The lower cap 230 serves to seal the lower side of the pocket housing 210 as well as the lower edge portion of the pocket housing 210 in the process of inserting the pocket housing 210 into the blast hole (2) The inner periphery of (2) is prevented from being caught by protruding protrusions and the like.

On the other hand, inside the lower cap 230, the weight chain 233 is inserted as in the case of the first embodiment, when water is generated in the blast hole (2), the specific gravity compared to water small eye explosives (1) This containing pocket housing 210 will help to easily insert up to the bottom surface of the blasting hole (2).

On the other hand, the upper opening of the pocket housing 210 is the upper cap 240 is coupled to seal the storage space (S1).

Spacer 250 is inserted into the blast hole (2) in the state coupled to the outer circumference of the pocket housing 210 in the longitudinal direction at a predetermined distance to form an air space (S2) in the interior of the blast hole (2) It serves to hold the correct installation position of the pocket housing (210).

Here, as shown in the drawing, such a spacer 250 is preferably a coupling part 251 having one side opening to be fitted to the outer circumference of the pocket housing 210 and the coupling part 251. It may be configured to include a protrusion 253 is formed to protrude radially on the central axis of the to form an air space portion (S2) in the blasting hole (2).

In this case, the protruding portion 253 may be formed in the form of a tube that blows air into a predetermined mass, or may be in the form of a mass made of a soft synthetic resin material.

Alternatively, the protrusion 253 may be formed in the form of a support protrusion 255 that protrudes radially in a direction perpendicular to the center axis line of the coupling portion 251 to form the air space S2.

Such a spacer 250 may be elastically fitted to the outer circumference of the pocket housing 210, or may be fixed in such a manner that the spacer 250 is attached to the outer circumference of the pocket housing 210 by an adhesive or the like.

Then, a description will be made to the antarctic explosives filling case of the present invention and the rock blasting method using the same.

In the method of rock blasting using an ophthalmic explosive filling case, referring again to FIG. 3, first, a rock crushing plan is established.

Then, a plurality of blasting holes 2 are drilled in the blasting target rock.

When the drilling of the blasting hole 2 is completed, the predetermined ophthalmic explosive drug 1 necessary for crushing the rock is filled in the tubular case 100 and the case 100 is inserted into the blasting hole 2.

Then, the full width medicine 300 is connected to the primer 310 is connected to the upper side of the case 100, and the remaining space of the blasting hole 2 is colored with the chromosomes 320.

Finally, the primer 310 is detonated to break up the blasted rock.

In the rock blasting method using another capsule filling case, first, a rock crushing plan is established.

Then, a plurality of blasting holes 2 are drilled in the blasting target rock.

When the drilling of the blast hole (2) is completed, the storage space (S1) and the air space portion 130 is filled with the explosive charge (1) so that the explosion can be concentrated toward the free surface (3) or crushing direction of the rock After filling the encapsulant (1) into the case 100 defined by the diaphragm 131, the case 100 is inserted into the blast hole (2).

Finally, the primer 310 is detonated to break up the blasted rock.

In another method for rock blasting using an ophthalmic explosive filling case, referring to FIG. 9, first, a rock crushing plan is established.

Then, a plurality of blasting holes 2 are drilled in the blasting target rock.

When the drilling of the blast hole (2) is completed, the predetermined ophthalmic explosives (1) necessary for crushing the rock is filled in the tubular case 200, and then the plurality of spacers 250 in one longitudinal direction of the case 200. Combine them apart.

Then, the case 200 having the spacer 250 coupled to the blasting hole 2 is inserted into the blasting hole 2 so that the explosion can be concentrated toward the free surface 3 or the crushing direction of the rock. It forms an air space (S2).

Then, after inserting the full width medicine 300 connected to the primer 310 on the upper side of the inserted case 200, the remaining space of the blast hole (2) to color the whole material (320).

Finally, the primer 310 is detonated to break up the blasted rock.

In the present invention as described above by filling the quantum explosives (1) in the case (100) (200) by quantifying the characteristics of the eyeball by applying a vibration estimation equation to each site to establish an accurate standard, blast hole through more technical improvement The solution reduction and the blasting efficiency are achieved. In addition, by presenting a standard construction method for each case (100, 200) form, the ratio of the weak diameter and the aperture diameter 1: 1 of the previous artillery explosive (1) can be controlled to 0.4 ~ 1: 1 by the same dose Cushion blasting to increase the contrast medicine, vibration reduction can be enabled through the blasting method using the case () of the present invention.

On the other hand, an ophthalmic explosives filling case and a rock blasting method using the same according to the present invention has been shown and described for a specific preferred embodiment, the present invention is not limited to the above embodiments and within the scope not departing from the technical spirit of the present invention Of course, various changes and modifications are possible by those skilled in the art to which the invention pertains.

For example, the

case

100, 200 has been described as an example of filling the eye gun explosives (1), of course, can be used by selectively filling various types of explosives, including emulsions in addition to the eye gun explosives (1). .

In addition, in the rock blasting method using the

case

100, 200 as described above, the order of inserting the

case

100, 200 and the full width drug 300 in the blasting hole 2 is the type of blasting or rock Various changes can be made depending on the characteristics of the present invention. For example, first insert the full width medicine 300 connected to the primer 310 in the blast hole (2), and then insert the

case

100, 200, or insert the

case

100, 200 in the upper and lower sides and the full width therein. It can be configured in a variety of structures, such as how to position and detonate the medicine 300.

In addition, without inserting the full width drug 300 in the blast hole (2) can be configured in such a way that the primer 310 is directly connected to the

case

100, 200 filled with the anterior explosive drug (1).

1: gunpo drug 2: blasting hole

3: 100 free sides, 200 cases

110: pocket housing 111: graduation display

113: round portion 120: weight

130: air space part 131: diaphragm

133: spacer 210: pocket housing

211: fastening portion 230: lower cap

233: weight 240: upper cap

250: spacer 251: coupling portion

253: protrusion 300: full width drug

310: primer 320: the coloring matter

S1: storage space S2: air space

Claims

A pocket housing inserted into the blast hole (2) is formed in a smaller diameter than the blast hole (2) is provided in the interior of the receiving space (S1) is provided in the inner space so that the capillary explosives (1) can be filled and the blast hole (2) Including the (110), characterized in that the quantitative granular explosives (1) used for rock blasting,

The pocket housing 110 is formed of a transparent vinyl or plastic material that is waterproof,

On the outer circumference of the pocket housing 110, a scale display portion 111 is formed so that the amount of the eye drop width 1 filled in the storage space S1 can be measured.

The lower edge portion of the pocket housing 110 is provided with a round portion 113 is formed to be rounded in a gentle curve,

The weight 120 is inserted into the inner lower side of the pocket housing 110,

The storage space S1 is divided into at least two parts by the diaphragm 131 formed in the inner longitudinal direction of the pocket housing 110 so as to partition the hollow air space part 130 in addition to the space in which the intraocular explosive drug 1 is filled. An explosives filling case containing what was formed.
An accommodation space S1 is provided therein so as to fill the capillary explosive medicine 1, and a tubular pocket housing 210 having a fastening part 211 formed on at least one side of the upper side and the lower side to be connected to one or more in the longitudinal direction. );

A hemispherical lower cap 230 coupled to the lower side of the pocket housing 210;

An upper cap 240 coupled to an upper side of the pocket housing 210 to seal the storage space S1;

A plurality of spacers 250 coupled to one side of the outer side of the pocket housing 210 in the longitudinal direction to be spaced apart to form an air space S2 in the blasting hole 2; Anpothecary filling case.
The method of claim 2,

The fastening part 211 is,

At least one fastening hole 221 formed to be spaced apart from the upper outer circumference of the pocket housing 210 by a predetermined angle;

An explosive capsule filling case comprising a; fastening protrusion (223) protruding to correspond to the lower outer periphery of the pocket housing 210 to be fitted to the fastening hole (221).
The method of claim 2,

An inner explosive charge filling case further comprising a weight 233 having a predetermined weight is inserted into the lower cap 230.
The method of claim 2,

The spacer 250,

A coupling part 251 having one side opened to be fitted to the outer circumference of the pocket housing 210;

An explosive capsule filling case comprising a; protruding portion 253 is formed radially protruding from the center axis line of the coupling portion 251 to form an air space portion (S2) in the blast hole (2).
Establishing a rock crushing plan;

Drilling a plurality of blasting holes 2 in the blasting target rock;

Filling the tubular case (200) with a predetermined explosive charge (1) necessary for crushing the rock;

Coupling a plurality of spacers 250 spaced apart in one longitudinal direction of the case 200;

An air space portion inside the blasting hole 2 is inserted into the blasting hole 2 by inserting a case 200 in which the spacer 250 is coupled into the blasting hole 2 so that the explosion can be concentrated toward the free surface 3 or the fracture direction of the rock. Forming (S2);

Inserting the full width medicine 300 to which the primer 310 is connected to an upper side of the inserted case 200;

Colorizing the remaining space of the blast hole (2) with a color material (320);

Rock blasting method using an ophthalmic explosives filling case comprising the step of detonating the blasting target rock by detonating the primer 310.