Surface mine blasting dust fall system

Abstract

The utility model discloses a surface mine blasting dust falling system which comprises a dust falling barrel arranged in a blasting area, the dust falling barrel comprises a barrel body, a cartridge fixing device is arranged in the middle of the barrel body and used for fixing an initiating explosive bag, a supporting beam is arranged between the cartridge fixing device and the dust falling barrel, one end of the supporting beam is fixedly connected with the inner wall of the dust falling barrel, and the other end of the supporting beam is fixedly connected with the other end of the dust falling barrel. A detonating network is arranged between the dust falling barrels in the blasting area, one end of the detonating network is connected with a detonating cartridge, the other end of the detonating network is connected with a main detonating line, and the other end of the main detonating line is connected with an exploder; the device is simple in structure and convenient to operate, detonation of the dust falling barrel is controlled through the exploder, the dust in the dust falling barrel is exploded towards the periphery through the initiating explosive bag, and the space range of an explosion area is filled with water mist; and water mist is in contact with flying dust generated by blasting, so that the dust falling efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mine blasting dust fall system technical field, specifically is a kind of open-pit mine blasting dust fall system. BACKGROUND

[0002] Open-pit mine blasting instantaneous energy is big, and the dust raised along with blasting is also very big, and mine dust has important influence on mine operation environment and the health of practitioners. In the past, open-pit blasting reduces blasting dust by connecting water pipe to blasting area through water cart to carry out multi-point rotary spraying, and reduces blasting dust by wetting blasting area in advance. By connecting water pipe to blasting area through water cart to carry out multi-point rotary spraying, considering the huge energy generated by blasting and the damage ability of flyrock, the equipment and main blasting are kept enough safety distance, so spraying device can only be set on the periphery of blasting area, which has certain dust suppression effect outside the blasting area, and the control effect on the whole blasting dust is not very obvious. Wetting blasting area in advance reduces blasting dust, which has certain inhibitory effect on blasting dust in the blasting area, but the instantaneous energy of blasting is huge, and the middle part of the blasting center rock layer in the blasting area is not wet, so the blasting dust cannot be well controlled. In order to solve the above problems, the present application provides an open-pit mine blasting dust fall system. SUMMARY

[0003] The utility model discloses a kind of open-pit mine blasting dust fall systems to solve the above problems.

[0004] The specific scheme of the utility model is: a kind of open-pit mine blasting dust fall system, for the dust generated when setting blast hole explosion in blasting area is dust fall, it is characterized by: including: dust fall barrel, the dust fall barrel is set in blasting area, and is staggered with blast hole in blasting area, the dust fall barrel includes: barrel body, the middle part of the barrel body is set in cartridge fixing device, the cartridge fixing device is used to fix detonating charge, support beam is equipped between the cartridge fixing device and the dust fall barrel, one end of the support beam is fixedly connected with the inner wall of the dust fall barrel, and the other end is fixedly connected with the cartridge fixing device, detonation network is equipped between the dust fall barrels in the blasting area, one end of the detonation network is connected with detonating charge, and the other end is connected with main detonating cord, and the other end of the main detonating cord is connected with detonator.

[0005] Further, the barrel body is a barrel-shaped structure with large upper part and small lower part.

[0006] Further, the barrel body, support beam and cartridge fixing device are all made of plastic material.

[0007] Further, the cartridge fixing device is a charging barrel, which is a barrel-shaped structure with open upper part, and is used to place detonating charge.

[0008] Furthermore, the dust collection bin has reflective markings on its outer side.

[0009] Furthermore, the main detonation line has a waterproof and wear-resistant outer protective sleeve.

[0010] The working principle of this utility model is as follows: First, the dust suppression barrel is detonated by the detonator, and the explosive charge is used to blast the dust suppression barrel in all directions, filling the space of the blast zone with water mist. At this time, the dust generated by the explosion of the explosive in the blast hole comes into contact with the water mist in the air, thereby achieving a very good dust suppression effect.

[0011] The present invention has the following advantages: the device has a simple structure and is easy to operate. The dust suppression barrel is detonated by the detonator, and the explosive charge is used to blast the dust suppression barrel in all directions, filling the space of the blast zone with water mist. The water mist comes into contact with the dust generated by the blast, which greatly improves the dust suppression efficiency. Attached Figure Description

[0012] Fig. 1 This is a schematic diagram illustrating the principle and structure of this utility model;

[0013] Fig. 2 This is a three-dimensional structural diagram of the dust collection bin;

[0014] Fig. 3 This is a cross-sectional view of the dust collection bin;

[0015] In the diagram: 1. Blasting zone; 2. Dust suppression bin; 201. Support beam; 202. Charge container; 203. Detonating charge; 3. Blasting hole; 4. Detonation network; 5. Main detonation line; 6. Detonator. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0018] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0019] Please refer to Figs. 1-3 A dust suppression system for open-pit mine blasting is used to suppress dust generated during the explosion of blast holes 3 in a blasting zone 1. The system is characterized by comprising: a dust suppression bin 2, which is located within the blasting zone 1 and staggered from the blast holes 3. The dust suppression bin 2 includes: a bin body, with a charge fixing device at the center of the bin body for fixing a detonating charge 203; a support beam 201 between the charge fixing device and the dust suppression bin 2, one end of which is fixedly connected to the inner wall of the dust suppression bin 2, and the other end of which is fixedly connected to the charge fixing device; and a detonation network 4 between the dust suppression bins 2 within the blasting zone 1, one end of which is connected to the detonating charge 203, and the other end of which is connected to a main detonation line 5, the other end of which is connected to a detonator 6.

[0020] In this embodiment, the cylindrical body is a barrel-shaped structure that is larger at the top and smaller at the bottom.

[0021] In this embodiment, the barrel body, support beam 201, and medicine roll fixing device are all made of plastic.

[0022] In this embodiment, the explosive charge fixing device is an explosive charge barrel 202, which is a barrel-shaped structure with the opening facing upwards. The explosive charge barrel 202 is used to place the detonating explosive charge 203.

[0023] In this embodiment, the outer side of the dust collection bin 2 is provided with reflective markings.

[0024] In this embodiment, the main detonation line 5 has a waterproof and wear-resistant outer protective sleeve.

[0025] The working principle of this utility model is as follows: First, the dust suppression barrel 2 is detonated by the detonator 6. The detonating charge 203 is used to blast the dust suppression barrel 2 in all directions, and the space of the blast zone 1 is filled with water mist. At this time, the dust generated by the explosion of the explosive in the blast hole 3 comes into contact with the water mist in the air, thereby achieving a very good dust suppression effect.

[0026] The present invention has the following advantages: The device has a simple structure and is easy to operate. The dust suppression bin 2 is detonated by the detonator 6, and the dust suppression bin 2 is detonated in all directions by the detonating charge 203. At that time, the space of the blast zone 1 is filled with water mist. The water mist comes into contact with the dust generated by the blast, which greatly improves the dust suppression efficiency.

[0027] Instructions for use;

[0028] Dust collection bin 2 is positioned in the center of blast hole 3;

[0029] Place a waterproof explosive detonator 203 into each barrel and fill the barrel with water;

[0030] The explosives inside the barrel are connected sequentially to form a detonation network 4;

[0031] The blast holes 3 in the blasting zone 1 are connected in sequence to form the detonation network 4;

[0032] The explosive charge inside the dustproof barrel is detonated in the blasting zone 1 before the main gun port 3 is detonated by water mist formed in the blasting zone in milliseconds, thereby achieving the purpose of suppressing dust.

Claims

1. A dust suppression system for blasting in open-pit mines, used to suppress dust generated during the explosion of blast holes in the blasting area, characterized in that: include: A dust suppression bin is provided, located within the blasting zone and staggered from the blast holes within the blasting zone. The dust suppression bin includes: a bin body, with a charge fixing device located in the middle of the bin body. The charge fixing device is used to fix the detonating charge. A support beam is provided between the charge fixing device and the dust suppression bin. One end of the support beam is fixedly connected to the inner wall of the dust suppression bin, and the other end is fixedly connected to the charge fixing device. A detonation network is provided between the dust suppression bins within the blasting zone. One end of the detonation network is connected to the detonating charge, and the other end is connected to the main detonation line. The other end of the main detonation line is connected to a detonator.

2. The dust suppression system for open-pit mine blasting according to claim 1, characterized in that: The cylinder has a barrel-shaped structure that is wider at the top and narrower at the bottom.

3. The dust suppression system for open-pit mine blasting according to claim 1, characterized in that: The barrel body, support beam, and medicine roll fixing device are all made of plastic.

4. The dust suppression system for open-pit mine blasting according to claim 1, characterized in that: The explosive charge fixing device is an explosive barrel, which is a barrel-shaped structure with the opening facing upwards. The explosive barrel is used to hold the detonating explosive charge.

5. The dust suppression system for open-pit mine blasting according to claim 1, characterized in that: The dust collection bin has reflective markings on its outer side.

6. The dust suppression system for open-pit mine blasting according to claim 1, characterized in that: The main detonation line has a waterproof and wear-resistant outer protective sleeve.

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