CN112880502A - Staggered spaced charging device and method for improving blasting bulkiness - Google Patents
Staggered spaced charging device and method for improving blasting bulkiness Download PDFInfo
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- CN112880502A CN112880502A CN202110316767.5A CN202110316767A CN112880502A CN 112880502 A CN112880502 A CN 112880502A CN 202110316767 A CN202110316767 A CN 202110316767A CN 112880502 A CN112880502 A CN 112880502A
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- explosive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Abstract
A staggered spaced charging device for improving blasting bulkiness comprises two PVC wafers, a PVC pipe and a PVC bag; the two PVC wafers are respectively arranged at the top of the PVC pipe and the bottom of the PVC pipe, and the PVC bag is arranged on the PVC wafer at the top. A method of loading staggered spaced charges to improve blast bulk, comprising: the blast holes are arranged in 3-5 rows on the open-air step, wherein the blast holes in 1-2 rows far away from the free surface are loaded at intervals at the bottom of the blast holes; the blast holes in the middle 1-2 rows are filled at intervals in the middle of the blast holes; the blast holes closest to the free surface are loaded at intervals at the upper parts of the blast holes. The staggered spaced charging arrangement is carried out by adopting the spaced charging devices, so that the utilization rate of the explosive is improved, the block rate is reduced, the blasting bulkiness is improved, and the blasting vibration is reduced to a certain extent.
Description
Technical Field
The invention relates to a spaced charging device, in particular to a staggered spaced charging device and a charging method for improving blasting bulkiness.
Background
At present, the interval charging blasting is widely applied to the blasting industry because the initial stress peak value of the explosive blasting is reduced, the explosive energy utilization rate is improved, and the blasting vibration is reduced. The industry has a large number of spacers for spaced charges and is widely used for open bench blasting and smooth (presplitting) blasting. Most of the existing explosive filling spacing devices only adopt a single spacing mode, such as air spacing or water spacing; the spacing positions are often single, for example, the blast holes of the whole blast area only adopt one mode of blast hole bottom spaced charge or middle spaced charge or top spaced charge.
Although the design of single interval mode and single interval position can exert the advantages of interval charging to a certain extent, the design has the following defects: firstly, the single interval mode has limited improvement of the energy utilization rate of the explosive, and the comprehensive advantages of the explosive cannot be exerted; secondly, a single interval position, such as the position of the whole blast area at a specific depth of a blast hole only adopts air intervals or water intervals, and only the single advantage can be played, the environment of the blast area is usually complex, such as the position of a joint crack, and the distribution of a fault and a karst cave is different, so that the influence of the air interval position on the blasting effect is large, and if the interval position is just positioned at the weak structure surface such as the fault, the utilization rate of the explosive cannot be improved, but the opposite effect can be obtained. Thirdly, a single interval position is adopted, if only the interval of the upper part of the hole is adopted, the blasting block degree improving effect on the hole and the filling section is better, the blasting block degree improving effect on the bottom and the middle part is very limited, the blasting effect of the whole blasting area can show that the blasting block degree of the upper part is improved, and the blasting effect of the middle part and the lower part is not changed. Generally, when blasting is carried out by adopting a spaced charging method at a single spaced position, the energy utilization of explosives is still insufficient, and further improvement space is provided.
Disclosure of Invention
The invention aims to provide a staggered spaced charging device and a charging method for improving blasting bulkiness, aiming at the defects of the prior art.
A staggered spaced charging device for improving blasting bulkiness comprises two PVC wafers, a PVC pipe and a PVC bag; the two PVC wafers are respectively arranged at the top of the PVC pipe and the bottom of the PVC pipe, and the PVC bag is positioned on the PVC wafer at the top.
Furthermore, the PVC pipe is provided with 2-4 sections, the length of each section of PVC pipe is 0.5m, a pair of concave sliding chutes are symmetrically arranged on the inner wall of each section of PVC pipe, and the concave sliding chutes are arranged between the positions 5cm away from the end part of each section of PVC pipe; a circular hole is formed in the end part of the concave sliding groove, a circular button with a spring is arranged in the concave sliding groove, and a bulge is arranged on the circular button, so that when the bulge is clamped on the circular hole, the bulge can be clamped on the inner wall of the PVC pipe, and the circular button cannot be completely ejected out of the circular hole; when the round button slides in the concave sliding groove, the spring is in a compressed state; when the round button is positioned in the round hole at the end part of the concave sliding chute, the round button is pushed out by the spring and clamped in the round hole, and the joint connection between the joints is completed.
An interleaved spaced charging method for improving blasting bulkiness, comprising the following steps: 3-5 rows of blast holes are arranged on the open-air step, wherein 1-2 rows of blast holes far away from the free surface are provided with spaced charging devices at the bottoms of the blast holes, namely the bottoms of the blast holes are charged at intervals; arranging spaced charging devices in the middle of the blast holes in the middle of the 1-2 rows of blast holes, namely, charging the blast holes at intervals; and a spaced charging device is arranged at the upper part of the blast hole closest to the free surface, namely the spaced charging at the upper part of the blast hole.
Further, the step of spaced charging at the bottom of the blast hole comprises: firstly, filling an emulsion explosive cartridge in a polyvinyl chloride bag of a spaced explosive filling device, then hoisting the spaced explosive filling device to the bottom of a blast hole, keeping the end part of the plastic bag at the opening of the blast hole to be always positioned on the opening of the blast hole during hoisting, finally, finishing hoisting the emulsion explosive, filling water into the opening of the blast hole until the water is filled to the designed explosive filling height, and finally, filling.
Further, the method is characterized in that the step of loading the blast hole with the interval powder comprises the following steps: firstly, hoisting an emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to a position with a middle interval, keeping the end part of the polyvinyl chloride bag to be always positioned on the orifice of the blast hole during hoisting, then, after the emulsion explosive is hoisted, filling water into the orifice of the blast hole until the water is filled to the top end of the blast hole, and finally, filling the emulsion explosive cartridge.
Further, the step of loading the interval charge at the upper part of the blast hole comprises the following steps: and hoisting the emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to the top end of the blast hole, not filling water into the opening of the blast hole, and finally filling the top of the blast hole with stemming.
Compared with the prior art, the invention has the following excellent effects: carry out staggered form interval powder charge through adopting interval charging means and arrange to this improves the explosive utilization ratio, thereby reduces big bulk rate and improves the blasting lumpiness, reduces the blasting vibration to a certain extent simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the configuration of the method of loading the staggered spaced charges of the present invention;
FIG. 2 is a schematic perspective view of an alternate space charge of the present invention;
FIG. 3 is a first cross-sectional view of an interleaved spaced charge of the present invention;
FIG. 4 is a second cross-sectional view of the interleaved spaced charge of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 at A;
fig. 6 is a partial enlarged view of fig. 4 at B;
reference numerals: the explosive filling device comprises a concave chute 1, a round button 2, a bulge 21, a PVC pipe 3, a spring 4, a filling section 5, a polyvinyl chloride bag 6, a spacing section 7, an explosive section 8, a step 9, a round hole 10, an upper explosive section 81 and a lower explosive section 82.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood 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, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example 1
A staggered spaced charging device for improving blasting bulkiness comprises two PVC wafers, a PVC pipe 3 and a PVC bag 6; the two PVC wafers are respectively arranged at the top of the PVC pipe 3 and the bottom of the PVC pipe 3, and the PVC bag 6 is arranged on the PVC wafer at the top.
Preferably, the PVC pipes 3 are arranged in 2-4 sections, the length of each section of PVC pipe 3 is 0.5m, a pair of concave sliding chutes 1 are symmetrically arranged on the inner wall of each section of PVC pipe 3, and the concave sliding chutes 1 are arranged between the positions 5cm away from the end part of each section of PVC pipe 3; 1 tip of spill spout is equipped with circular port 10, is equipped with circular button 2 of taking spring 4 in the spill spout 1, be equipped with protruding 21 on the circular button 2, protruding 21 is when the card is on circular port 10 like this, and the inner wall of PVC pipe 3 can be blocked at protruding 21 position, and circular button 2 is unlikely to be ejected out completely from circular port 10 and has gone when circular button 2 slides in spill spout 1, and spring 4 belongs to the compression state.
A method of loading staggered spaced charges to improve blast bulk, comprising: 3-5 rows of blast holes are arranged on the open-air step 9, wherein 1-2 rows of blast holes far away from the free surface are provided with spaced charging devices at the bottoms of the blast holes, namely the bottoms of the blast holes are charged at intervals; arranging spaced charging devices in the middle of the blast holes in the middle of the 1-2 rows of blast holes, namely, charging the blast holes at intervals; and a spaced charging device is arranged at the upper part of the blast hole closest to the free surface, namely the spaced charging at the upper part of the blast hole.
Preferably, the step of spaced charging at the bottom of the blast hole comprises: firstly, filling an emulsion explosive cartridge in a polyvinyl chloride bag 6 of a spaced explosive filling device, then hoisting the spaced explosive filling device to the bottom of a blast hole, keeping the end part of the plastic bag at the opening of the blast hole to be always positioned on the opening of the blast hole during hoisting, finally, finishing hoisting the emulsion explosive, filling water in the blast hole until the water is filled to the designed explosive filling height, and finally, filling.
Preferably, the step of loading the blast hole with a spacing charge in the middle of the blast hole comprises: firstly, hoisting an emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to a position with a middle interval, keeping the end part of the polyvinyl chloride bag 6 on the orifice of the blast hole all the time during hoisting, then, after the emulsion explosive is hoisted, filling water into the orifice of the blast hole until the water is filled to the top end of the blast hole, and finally, filling the emulsion explosive cartridge.
Preferably, the step of loading the upper portion of the blast hole with a space charge comprises: and hoisting the emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to the top end of the blast hole, not filling water into the opening of the blast hole, and finally filling the top of the blast hole with stemming.
Example 2
A staggered spaced charging device for improving blasting bulkiness comprises two PVC wafers, a PVC pipe 3 and a PVC bag 6; the two PVC wafers are respectively arranged at the top of the PVC pipe 3 and the bottom of the PVC pipe 3, and the PVC bag 6 is arranged on the PVC wafer at the top.
Preferably, the PVC pipes 3 are arranged in 2-4 sections, the length of each section of PVC pipe 3 is 0.5m, a pair of concave sliding chutes 1 are symmetrically arranged on the inner wall of each section of PVC pipe 3, and the concave sliding chutes 1 are arranged between the positions 5cm away from the end part of each section of PVC pipe 3; a circular hole 10 is arranged at the end part of the concave chute 1, and a circular button 2 with a spring 4 is arranged in the concave chute 1; be equipped with arch 21 on circular button 2, arch 21 position can block the inner wall at PVC pipe 3 when the card is on circular port 10 like this, and circular button 2 is unlikely to ejecting out from circular port 10 completely and has got rid of when circular button 2 is in circular port 10 of 1 tip of spill spout, and spring 4 pushes out circular button 2, blocks in circular port 10, accomplishes the position between festival and the festival and is connected.
A method of loading staggered spaced charges to improve blast bulk, comprising: 3-5 rows of blast holes are arranged on the open-air step 9, wherein 1-2 rows of blast holes far away from the free surface are provided with spaced charging devices at the bottoms of the blast holes, namely the bottoms of the blast holes are charged at intervals; arranging spaced charging devices in the middle of the blast holes in the middle of the 1-2 rows of blast holes, namely, charging the blast holes at intervals; and a spaced charging device is arranged at the upper part of the blast hole closest to the free surface, namely the spaced charging at the upper part of the blast hole.
Preferably, the step of spaced charging at the bottom of the blast hole comprises: firstly, filling an emulsion explosive cartridge in a polyvinyl chloride bag 6 of a spaced explosive filling device, then hoisting the spaced explosive filling device to the bottom of a blast hole, keeping the end part of the plastic bag at the opening of the blast hole to be always positioned on the opening of the blast hole during hoisting, finally, finishing hoisting the emulsion explosive, filling water in the blast hole until the water is filled to the designed explosive filling height, and finally, filling.
Preferably, the step of loading the blast hole with a spacing charge in the middle of the blast hole comprises: firstly, hoisting an emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to a position with a middle interval, keeping the end part of the polyvinyl chloride bag 6 on the orifice of the blast hole all the time during hoisting, then, after the emulsion explosive is hoisted, filling water into the orifice of the blast hole until the water is filled to the top end of the blast hole, and finally, filling the emulsion explosive cartridge.
Preferably, the step of loading the upper portion of the blast hole with a space charge comprises: and hoisting the emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to the top end of the blast hole, not filling water into the opening of the blast hole, and finally filling the top of the blast hole with stemming.
The excellent effects of the present invention: carry out staggered form interval powder charge through adopting interval charging means and arrange to this improves the explosive utilization ratio, thereby reduces big bulk rate and improves the blasting lumpiness, reduces the blasting vibration to a certain extent simultaneously.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A staggered spaced explosive loading device for improving blasting bulkiness is characterized by comprising two PVC wafers, a PVC pipe (3) and a PVC bag (6); the two PVC wafers are respectively arranged at the top of the PVC pipe (3) and the bottom of the PVC pipe (3), and the PVC bag (6) is arranged on the PVC wafer at the top.
2. The staggered spaced charging device for improving the blasting bulkiness according to claim 1, wherein the PVC pipes (3) are provided with 2-4 sections, each section of PVC pipe (3) is 0.5m long, a pair of concave chutes (1) are symmetrically arranged on the inner wall of each section of PVC pipe (3), and the concave chutes (1) are arranged between the positions 5cm away from the end part of each section of PVC pipe (3); a circular hole (10) is arranged at the end part of the concave chute (1), and a circular button (2) with a spring (4) is arranged in the concave chute (1); be equipped with arch (21) on circular button (2), protruding (21) position can block in the inner wall of PVC pipe (3) when block in circular port (10) like this, and circular button (2) are unlikely to be ejected from circular port (10) completely.
3. A staggered spaced charging method for improving blasting bulkiness is characterized in that 3-5 rows of blast holes are arranged on an open step (9), wherein 1-2 rows of blast holes far away from a free surface are provided with spaced charging devices at the bottoms of the blast holes, namely, the bottoms of the blast holes are charged at intervals; arranging spaced charging devices in the middle of the blast holes in the middle of the 1-2 rows of blast holes, namely, charging the blast holes at intervals; and a spaced charging device is arranged at the upper part of the blast hole closest to the free surface, namely the spaced charging at the upper part of the blast hole.
4. The staggered spaced charging method for improving blasting bulkiness of claim 3, wherein said step of bottom spaced charging of blast holes comprises: firstly, filling an emulsion explosive cartridge in a polyvinyl chloride bag (6) of a spaced explosive filling device, then hoisting the spaced explosive filling device to the bottom of a blast hole, keeping the end part of the plastic bag at the opening of the blast hole to be always positioned on the opening of the blast hole during hoisting, finally finishing hoisting the emulsion explosive, filling water in the blast hole until the water is filled to the designed explosive filling height, and finally filling.
5. A method of loading staggered spaced charges for improved blasting bulkiness as defined in claim 3, wherein said step of loading a center spaced charge in the blast hole comprises: firstly, hoisting an emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to the designed middle spaced position, keeping the end part of the polyvinyl chloride bag (6) to be always positioned on the orifice of the blast hole during hoisting, then, after the emulsion explosive is hoisted in the plastic bag, filling water into the orifice of the blast hole until the water is filled to the designed explosive loading height of the blast hole, and finally, filling the explosive cartridge.
6. A method of staggered spaced charges for improved blasting bulkiness as defined in claim 3, wherein said step of loading spaced charges above said blasthole comprises: and hoisting the emulsion explosive cartridge at the lower part of the spaced explosive loading device, hoisting the spaced explosive loading device to the top end of the blast hole, not filling water into the blast hole opening, and finally filling the upper part of the spaced explosive loading device with stemming until the blast hole opening.
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| CN202110316767.5A CN112880502A (en) | 2021-03-22 | 2021-03-22 | Staggered spaced charging device and method for improving blasting bulkiness |
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