CN215864926U

CN215864926U - Blasting loaded constitution

Info

Publication number: CN215864926U
Application number: CN202121579532.7U
Authority: CN
Inventors: 刘孝义; 董斌; 张万虎; 孙宏全; 刘攀; 王鹏举; 张宇涛
Original assignee: China Chemical Engineering Heavy Mechanization Co ltd
Current assignee: China Chemical Engineering Heavy Mechanization Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-18
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a blasting charge structure, which comprises a charge structure, wherein the charge structure comprises: the explosive charging section comprises an upper explosive charging section, a middle explosive charging section and a bottom explosive charging section, the explosive charging section is provided with an explosive charging device, the spacing section comprises an upper drilling slag spacing section, a middle drilling slag spacing section and a bottom PVC pipe spacing section, and the explosive charging structure is internally provided with the blocking section, the upper explosive charging section, the upper drilling slag spacing section, the middle explosive charging section, the middle drilling slag spacing section, the bottom explosive charging section and the bottom PVC pipe spacing section from top to bottom in sequence; the dosage of the middle charging section is 1-3.5 times of that of the upper charging section; the amount of the bottom charge section is 3-7 times of that of the upper charge section. The blasting charge structure reduces the unit consumption of explosive, improves the height of explosive columns and the energy utilization rate of explosive by adopting interval charge and reasonable explosive quantity distribution, completes the charge process of a charge section externally and improves the construction efficiency.

Description

Blasting loaded constitution

Technical Field

The utility model relates to the technical field of blasting, in particular to a blasting charge structure.

Background

The major diameter deep hole blasting mining technology is more and more favored by underground mining enterprises due to high extraction efficiency, good safety and low investment cost, and is also a trend of future underground mining development, and a similar blasting method can be adopted for the blasting of the cutting earth and stone engineering in the building construction process. When blasting powder charge, the powder charge structure is divided into continuous powder charge and interval powder charge. The continuous charging often causes over-crushing of rock due to over concentration of explosive, and the consumption of explosive is large; and the interval charging effectively improves the utilization rate of blasting explosive, reduces the charging amount, ensures that the blasting energy is uniformly distributed on the wall of the hole, and has better blasting effect.

In the blasting of cutting earth and rock engineering in the building construction process, the reasonable setting of the unit consumption of explosive (the consumption of single-hole explosive) not only can reduce the use cost of the explosive, but also can improve the labor productivity, improve the blasting quality and improve the economic benefit, so that the full consideration of the unit consumption of the explosive is necessary; when the charging section is filled, the charging labor intensity is high, and the construction efficiency is influenced; in addition, underground water can appear in the blast holes during the drilling blasting, and a hydrophobic layer between the underground water and the explosives is required to be arranged;

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems of reasonably setting unit consumption of explosive, setting a hydrophobic layer between underground water and the explosive and improving the construction efficiency in the explosive charging process in the blasting of the cutting earth and rock engineering in the building construction process, the utility model aims to provide a blasting explosive charging structure.

In order to achieve the above object, the present invention provides a blasting charge structure, including: including charge structure, charge structure includes: the explosive charging section comprises an upper explosive charging section, a middle explosive charging section and a bottom explosive charging section, the explosive charging section is provided with an explosive charging device, the spacing section comprises an upper drilling slag spacing section, a middle drilling slag spacing section and a bottom PVC pipe spacing section, and the explosive charging structure is internally provided with the blocking section, the upper explosive charging section, the upper drilling slag spacing section, the middle explosive charging section, the middle drilling slag spacing section, the bottom explosive charging section and the bottom PVC pipe spacing section from top to bottom in sequence; the dosage of the middle charging section is 1-3.5 times of that of the upper charging section; the amount of the bottom charge section is 3-7 times of that of the upper charge section.

According to the utility model, the charging device is arranged on the charging section, so that the charging process of the charging section is completed outside, and when the charging section needs to be filled, the charging device only needs to be filled into the charging section, so that the construction efficiency is improved.

Preferably, the drug loading of the upper charge section is 10 percent of the total drug loading of the single hole, the drug loading of the middle charge section is 20 percent of the total drug loading of the single hole, and the drug loading of the bottom charge section is 70 percent of the total drug loading of the single hole.

Preferably, the drug loading amount of the upper drug loading section is 15 percent of the total drug loading amount of the single hole, the drug loading amount of the middle drug loading section is 35 percent of the total drug loading amount of the single hole, and the drug loading amount of the bottom drug loading section is 50 percent of the total drug loading amount of the single hole.

More preferably, the upper charge section is 10% of the total single-hole charge, the middle charge section is 35% of the total single-hole charge, and the bottom charge section is 55% of the total single-hole charge.

The utility model adopts the spaced charging, reduces the unit consumption of the explosive, and improves the energy utilization rate of the explosive through reasonable explosive quantity distribution; in addition, the drilling slag is used as the spacing layer, the operation is simple, the spacing length is easy to control accurately, and the use of the drilling slag reduces the construction cost.

Preferably, the charging section adopts the mixture of the rolling medicine or the granular medicine and the rolling medicine, and the rolling medicine or the granular medicine is arranged in the charging device.

Preferably, when the granular medicine and the rolling medicine are mixed for use, the rolling medicine is arranged at two ends of the medicine charging device, and the granular medicine is arranged between the rolling medicine.

Preferably, the blocking section consists of a stemming filling layer and a blast hole opening protector, the stemming filling layer is filled in the blast hole opening protector, and the blast hole opening protector is a PVC pipe.

The explosive device further comprises a detonating tube detonator and a detonating lock, wherein one end of the detonating tube detonator is connected with the detonating cord, and the other end of the detonating tube detonator penetrates through the upper explosive loading section and the blocking section and extends to the outside; the detonating cord is arranged in the inner cavities of the upper charge section, the upper drilling slag spacing section, the middle charge section, the middle drilling slag spacing section and the bottom charge section.

Compared with the prior art, the utility model has the technical effects that: the blasting charge structure reduces the unit consumption of explosive and improves the height of explosive columns and the energy utilization rate of the explosive by adopting interval charge and reasonable explosive quantity distribution; when underground water exists in the blast hole, the interval section of the PVC pipe at the bottom can be used as a hydrophobic layer to adapt to various explosives while playing an interval role; set up charging means, the powder charge process of powder charge section is accomplished externally, has improved the efficiency of construction.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 is a schematic diagram of the charge configuration of the present invention.

Description of reference numerals:

the device comprises a blocking section 1, an upper charge section 2, an upper drilling slag spacing section 3, a middle charge section 4, a middle drilling slag spacing section 5, a bottom charge section 6, a bottom PVC pipe spacing section 7, a detonating tube detonator 8, a detonating cord 9 and a charge device 10.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 utility model and are not to be construed as limiting the utility model.

A blasting charge configuration proposed according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, the blasting charge comprises a charge comprising: block up section 1, powder charge section and interval section, the powder charge section includes upper portion powder charge section 2, middle part powder charge section 4 and bottom powder charge section 6, the powder charge section sets up charging means 10, the interval section includes upper portion brill sediment interval section 3, middle part brill sediment interval section 5 and bottom PVC pipe interval section 7, inside from last to being down in proper order of loaded constitution blocks up section 1, upper portion powder charge section 2, upper portion brill sediment interval section 3, middle part powder charge section 4, middle part brill sediment interval section 5, bottom powder charge section 6, bottom PVC pipe interval section 7.

The charge section is the essential part of blasting structure, and the charge section can adopt a roll medicine, also can be the mixed use of rolling up medicine and grain medicine, rolls up medicine or grain medicine setting in charging means 10, and the powder charge process is accomplished externally, when mixing to use a roll medicine and a grain medicine, needs to set up a grain medicine between a roll medicine, rolls up the both ends that the medicine set up at charging means. The lower part of the blast hole is greatly clamped during blasting, the top end of the upper part is a free surface, and a good blasting effect can be obtained by using less explosives on the upper part as long as the lower part is blasted. The purpose of the layered filling of the spaced loading structure is to ensure that the explosive is more reasonably distributed in a blast hole by changing the loading structure and the distribution of explosive amount under the condition of not changing blasting parameters, improve the energy utilization rate of the explosive, ensure that the same explosive amount plays a greater role, and further reduce the unit consumption of the explosive. In the embodiment, the drug amount of the upper drug loading section 2 is 15 percent of the total drug loading amount of a single hole, the drug loading amount of the middle drug loading section 4 is 30 percent of the total drug loading amount of the single hole, and the drug loading amount of the bottom drug loading section 6 is 55 percent of the total drug loading amount of the single hole.

The spacing section exists in the spacing explosive charging structure and plays a role of spacing the explosive, so that the explosive is arranged in layers. The interval of this embodiment is divided into upper portion and bores sediment interval 3, middle part and bores sediment interval 5 and bottom PVC pipe interval 7, wherein the length that upper portion bored sediment interval 3 and middle part bore sediment interval 5 is 1.5m, can suitably adjust according to concrete hole depth, upper portion bores sediment interval 3 and middle part and bores the sediment that sediment interval 5 adopted the drilling process in to produce and regard as the interval, can not introduce other impurity, and the easy accurate control of height of interval, adopt to bore the sediment as the interval simultaneously and can draw materials on the spot, and then reduced construction cost. The bottom PVC pipe interval section 7 is located at the bottommost part of the blast hole, and the length of the bottom PVC pipe interval section 7 is set to be 2 m. When no underground water exists at the bottom of the blast hole or the depth of the underground water is less than 2m, directly placing a bottom PVC pipe interval section 7 with the length of 2m at the bottom of the hole; when the depth of the underground water at the bottom of the blast hole is more than 2m, the underground water is discharged until the depth of the underground water is less than 2m, and then the bottom PVC pipe interval section 7 with the length of 2m is placed at the bottom of the hole.

The section of blockking up 1 fills the stopper layer by the stemming and constitutes with big gun hole mouth protector, and the stemming fills the stopper layer and fills the setting in big gun hole mouth protector, and big gun hole mouth protector is the PVC pipe, sets up at big gun hole mouth end, and the section of blockking up 1 length is 3.5 m.

The blasting charge structure also comprises a detonating tube detonator 8 and a detonating cord 9, wherein one end of the detonating tube detonator 8 is connected with the detonating cord 9, the other end of the detonating tube detonator 8 penetrates through the upper charge section 2 and the blocking section 1 and extends to the outside, four-way joints are used outside holes to connect a duplex network, and an electric detonator is used for triggering detonation; the detonating cord 9 is arranged in the inner cavities of the upper charge section 2, the upper drill slag spacing section 3, the middle charge section 4, the middle drill slag spacing section 5 and the bottom charge section 6.

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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A blasting charge structure comprising a charge structure, the charge structure comprising: the explosive charging structure comprises a blocking section, an explosive charging section and a spacing section, wherein the explosive charging section comprises an upper explosive charging section, a middle explosive charging section and a bottom explosive charging section, the explosive charging section is provided with an explosive charging device, the spacing section comprises an upper drilling slag spacing section, a middle drilling slag spacing section and a bottom PVC pipe spacing section, and the blocking section, the upper explosive charging section, the upper drilling slag spacing section, the middle explosive charging section, the middle drilling slag spacing section, the bottom explosive charging section and the bottom PVC pipe spacing section are sequentially arranged inside the explosive charging structure from top to bottom; the dosage of the middle charging section is 1-3.5 times of that of the upper charging section; the amount of the bottom charge section is 3-7 times of that of the upper charge section.

2. A blasting charge arrangement as defined in claim 1, wherein the charge segments employ a mixture of a coil or pellet and said coil, the coil or pellet being disposed within the charge.

3. A blasting charge structure as defined in claim 2, wherein said pellets, when used in admixture with said coil of powder, are disposed at opposite ends of said charge, said pellets being disposed between said coils.

4. A blast charge construction as set forth in claim 3, wherein said plug section is comprised of a stemming layer and a muzzle protector, said stemming layer being disposed inside said muzzle protector, said muzzle protector being a PVC pipe.

5. A blasting charge arrangement according to any one of claims 1 to 4, further comprising a detonator and a detonating cord, the detonator being connected at one end to the detonating cord and at the other end extending externally through the top charge section and the blocking section; the detonating cord is arranged in the inner cavities of the upper charging section, the upper drilling slag spacing section, the middle charging section, the middle drilling slag spacing section and the bottom charging section.