CN112341298B - Emulsion explosive applied to upward hole pressurized gas charging and charging method thereof - Google Patents
Emulsion explosive applied to upward hole pressurized gas charging and charging method thereof Download PDFInfo
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- CN112341298B CN112341298B CN202011132322.3A CN202011132322A CN112341298B CN 112341298 B CN112341298 B CN 112341298B CN 202011132322 A CN202011132322 A CN 202011132322A CN 112341298 B CN112341298 B CN 112341298B
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- emulsion explosive
- explosive
- loader
- conical
- conveying
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/009—Wetting agents, hydrophobing agents, dehydrating agents, antistatic additives, viscosity improvers, antiagglomerating agents, grinding agents and other additives for working up
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
Abstract
The invention discloses an emulsion explosive applied to upward hole pressurized charging, which is applied to upward hole filling of the emulsion explosive and comprises the steps of firstly, carrying out physical sensitization treatment on the emulsion explosive; packaging with plastic film; adding a drag reducer in the next step; conveying the medicine to a conical medicine loader, and sealing the conical medicine loader after the conveying is finished; next, conveying the conical explosive loader conveying pipe to a specified position in a blast hole to be subjected to upward hole loading; and finally, opening an outlet valve of the conical explosive loader, pressurizing the conical explosive loader, enabling the emulsion explosive to enter the blast hole, crushing the plastic film under the action of pressure, and adsorbing the emulsion explosive in the blast hole through self viscosity. According to the invention, the emulsion explosive is packaged by adopting the plastic film, upward hole charging is carried out in a mode of compressing air of the tapered explosive loader, the problem that the existing emulsion explosive is difficult to charge upward holes of the tapered explosive loader is solved, and potential safety hazards brought by pressurization of a screw pump in the prior art are avoided in a mode of compressing air.
Description
Technical Field
The invention relates to the technical field of emulsion explosive production, in particular to an emulsion explosive applied to upward hole pressurized gas charging and a charging method thereof.
Background
The upward hole compressed gas charging mode is commonly applied to the downward hole, the safety, the convenience and the like of the charging mode are widely recognized, and the explosive is charged by adopting a tapered explosive charger or a charging trolley provided with the tapered explosive charger. However, the charging method limits the charging variety, and emulsion ammonium nitrate fuel oil explosive, viscous granular explosive and the like for upward hole are generally filled. Due to the fact that the viscosity of the emulsion explosive is high, the emulsion explosive cannot be filled in the mode. The explosion velocity of the emulsion explosive is higher than that of the emulsion ammonium nitrate fuel oil explosive and the viscous granular explosive, and the emulsion explosive is suitable for crushing underground hard rock. The existing underground field mixed emulsion explosive is filled and charged by adopting a screw pump for pressurization, so that certain safety risk exists; meanwhile, the powder filling effect is unstable, the powder falling condition is easy to occur, the size of the equipment is large, the requirements on mine conveying, roadways and operation surface fields are high, and the operation process is complicated.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a method for charging explosive by up-hole pressurization, which solves the problem that the existing emulsion explosive is difficult to charge explosive by up-hole using a conical explosive charger and avoids the potential safety hazard caused by pressurization through a screw pump.
According to the emulsion explosive applied to upward hole pressurized gas charging, the emulsion explosive is processed in the following mode:
s1: sensitizing the emulsion explosive, namely performing physical sensitization treatment on the emulsion explosive;
s2: and (3) packaging the emulsion explosive after sensitization by adopting a plastic film, wherein the packaging diameter is 1-2 cm.
Preferably, the physical sensitization in step S1 is glass microsphere sensitization.
Preferably, the emulsion explosive in the step S2 is packaged into granules with a diameter of 1-2cm by using a plastic film.
Preferably, the charging method comprises the following steps:
s3: adding a medicament, namely adding a drag reducer with the mass fraction of 1-5% into the packaged emulsion explosive;
s4: conveying the emulsion explosive, namely conveying the emulsion explosive added with the drag reducer in the step S3 to a conical explosive loader, and sealing the conical explosive loader after the conveying is finished;
s5: the conveying pipe of the tapered charge device is installed, the conveying pipe of the tapered charge device is conveyed to a blast hole to be charged upwards, and the conveying pipe of the tapered charge device is conveyed to a specified position in the blast hole to stop conveying;
s6: filling the emulsion explosive to the hole, opening the outlet valve of the conical explosive loader, pressurizing the emulsion explosive in the conical explosive loader, enabling the emulsion explosive to enter the blast hole from the outlet of the conveying pipe of the conical explosive loader, crushing the plastic film under the action of pressure, and adsorbing the emulsion explosive in the blast hole through self viscosity.
Preferably, the drag reducer is a flocculant solution, and the flocculant solution is a polyacrylamide solution with the concentration of 1% -10%.
According to the invention, the emulsion explosive is packaged by adopting a plastic film, the emulsion explosive is respectively packaged into particles with the diameter of 1-2cm, upward hole charging is carried out in a mode of compressing air of a conical explosive loader, the plastic film is broken after colliding with a blast hole under the action of impact force, the emulsion explosive is adsorbed in the blast hole through self viscosity, the problem that the existing emulsion explosive is difficult to charge the upward hole of the conical explosive loader is solved, the potential safety hazard caused by pressurization of a screw pump in the prior art is avoided in a mode of compressing air, and the emulsion explosive is prevented from being excessively damaged by friction resistance in the pipeline conveying process by adding a drag reducer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block flow diagram of a method of upward hole pressurized charging according to the present invention;
fig. 2 is a schematic diagram of the principle of the method for charging upward-hole pressurized gas according to the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 by those skilled in the art according to specific situations.
Example 1:
referring to fig. 1-2, a method for charging upward hole pressure gas is applied to the charging of an emulsion explosive into a hole, and the charging method comprises the following steps:
s1: sensitizing the emulsion explosive, namely performing physical sensitization treatment on the emulsion explosive;
s2: packaging the emulsion explosive, namely packaging the sensitized emulsion explosive by adopting a plastic film, wherein the packaging diameter is 1 cm;
s3: adding a medicament, namely adding a drag reducer with the mass fraction of 1% into the packaged emulsion explosive;
s4: conveying the emulsion explosive, namely conveying the emulsion explosive added with the drag reducer in the step S3 to a conical explosive loader, and sealing the conical explosive loader after the conveying is finished;
s5: the conveying pipe of the tapered charge device is installed, the conveying pipe of the tapered charge device is conveyed to a blast hole to be charged upwards, and the conveying pipe of the tapered charge device is conveyed to a specified position in the blast hole to stop conveying;
s6: filling the emulsion explosive to the hole, opening the outlet valve of the conical explosive loader, pressurizing the emulsion explosive in the conical explosive loader, enabling the emulsion explosive to enter the blast hole from the outlet of the conveying pipe of the conical explosive loader, crushing the plastic film under the action of pressure, and adsorbing the emulsion explosive in the blast hole through self viscosity.
The physical sensitization mode in the step S1 is a glass microsphere sensitization mode, the emulsion explosive in the step S2 is packaged into particles by adopting a plastic film, the diameter of each particle is 1cm, the drag reducer is a flocculant solution, and the flocculant solution is a polyacrylamide solution with the concentration of 1%.
Example 2:
the drag reducer is 5 percent, the diameter of a particle packaged by a plastic film is 2cm, and the concentration of a polyacrylamide solution is 10 percent;
the charge was charged by up-hole charge in the same manner as in example 1;
example 3:
the drag reducer is 3 percent, the diameter of a particle packaged by a plastic film is 1.5cm, and the concentration of a polyacrylamide solution is 5 percent;
the charge was charged by up-hole injection in the same manner as in example 1.
In conclusion, according to the upward hole pressure gas charging method, the emulsion explosive is packaged by the plastic film, the emulsion explosive is respectively packaged into particles with the diameter of 1-2cm, upward hole charging is carried out in a mode of pressing gas by the conical explosive loader, the plastic film is broken after colliding with a blast hole under the action of pressure, the emulsion explosive is adsorbed in the blast hole through self viscosity, the problem that the existing emulsion explosive is difficult to charge to the hole by using the conical explosive loader is solved, in addition, the potential safety hazard caused by pressurization of a screw pump in the prior art is avoided in a mode of pressing gas, and the emulsion explosive is prevented from being damaged due to overlarge friction resistance in the pipeline conveying process by adding a drag reducer.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. The emulsion explosive applied to upward hole pressurized gas charging is characterized in that the emulsion explosive is processed in the following mode:
s1: sensitizing the emulsion explosive, namely performing physical sensitization treatment on the emulsion explosive;
s2: packaging the emulsion explosive, wherein the sensitized emulsion explosive is packaged by a plastic film, and the packaging diameter is 1-2 cm;
the method for charging the emulsion explosive comprises the following steps:
s3: adding a medicament, namely adding a drag reducer with the mass fraction of 1-5% into the packaged emulsion explosive;
s4: conveying the emulsion explosive, namely conveying the emulsion explosive added with the drag reducer in the step S3 to a conical explosive loader, and sealing the conical explosive loader after the conveying is finished;
s5: the conveying pipe of the tapered charge device is installed, the conveying pipe of the tapered charge device is conveyed to a blast hole to be charged upwards, and the conveying pipe of the tapered charge device is conveyed to a specified position in the blast hole to stop conveying;
s6: filling the emulsion explosive into the hole, opening an outlet valve of the conical explosive loader, pressurizing the emulsion explosive into the conical explosive loader, enabling the emulsion explosive to enter the blast hole from an outlet of a conveying pipe of the conical explosive loader, crushing a plastic film under the action of pressure, and adsorbing the emulsion explosive in the blast hole through self viscosity;
in the step S2, the emulsion explosive is packaged into particles by a plastic film;
the drag reducer is a flocculant solution, and the flocculant solution is a polyacrylamide solution with the concentration of 1% -10%.
2. An emulsion explosive for use in an uphole compressed gas charge according to claim 1 wherein: the physical sensitization in step S1 is a glass microsphere sensitization.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132322.3A CN112341298B (en) | 2020-10-21 | 2020-10-21 | Emulsion explosive applied to upward hole pressurized gas charging and charging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011132322.3A CN112341298B (en) | 2020-10-21 | 2020-10-21 | Emulsion explosive applied to upward hole pressurized gas charging and charging method thereof |
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| CN112341298A CN112341298A (en) | 2021-02-09 |
| CN112341298B true CN112341298B (en) | 2022-02-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102842A (en) * | 1986-04-15 | 1987-10-28 | 包钢矿山研究所 | Normal temperature pumpable emulsion explosive loading car |
| JP2001221600A (en) * | 2000-02-10 | 2001-08-17 | Nippon Kayaku Co Ltd | Explosive charging method |
| CN104692982A (en) * | 2015-03-09 | 2015-06-10 | 马鞍山江南化工有限责任公司 | Upward hole compressed-air cartridge-loading emulsified ammonium oil explosive with high-temperature resistance and continuous preparation method thereof |
| CN108640806A (en) * | 2018-08-27 | 2018-10-12 | 安徽理工大学 | A kind of Novel underground is mining gluey emulsion and preparation method thereof |
-
2020
- 2020-10-21 CN CN202011132322.3A patent/CN112341298B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102842A (en) * | 1986-04-15 | 1987-10-28 | 包钢矿山研究所 | Normal temperature pumpable emulsion explosive loading car |
| JP2001221600A (en) * | 2000-02-10 | 2001-08-17 | Nippon Kayaku Co Ltd | Explosive charging method |
| CN104692982A (en) * | 2015-03-09 | 2015-06-10 | 马鞍山江南化工有限责任公司 | Upward hole compressed-air cartridge-loading emulsified ammonium oil explosive with high-temperature resistance and continuous preparation method thereof |
| CN108640806A (en) * | 2018-08-27 | 2018-10-12 | 安徽理工大学 | A kind of Novel underground is mining gluey emulsion and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 塑料膜包装乳化炸药应用于预裂爆破的常见问题分析;鲍俊;《科技与创新》;20180630;第16-18页 * |
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