A dust suppression device for a blast hole and a blast hole for loading the dust suppression device

Abstract

The utility model discloses a blasthole internal dust suppression device and blasthole for loading blasthole dust suppression device, blasthole internal dust suppression device includes bubble former container and chemical reagent container, the bubble former container includes shell, bubble former filling port and charge pipe placement mouth, the shell forms a cavity that holds bubble former, bubble former filling port and charge pipe placement mouth all are set up on the shell, chemical reagent container is inserted in the cavity of shell, and the opening of chemical reagent container is communicated with charge pipe placement mouth, the broken device is placed in chemical reagent container, the dust suppression device can use in the blasthole, and the dispersion of blasting dust is controlled from the source of blasting dust, and the dust dispersion range of blasting dust point is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mine health and safety technology, specifically to a device for suppressing and reducing blasting dust during blasting and a blast hole for filling with a dust suppression device. Background Technology

[0002] The main dust-generating points in mines include blasting operations, mining operations, road transportation, and crushing. Among these, blasting generates a large amount of dust and is the main dust source for many subsequent dust-generating points. Therefore, suppressing and reducing blasting dust can effectively improve dust concentration in mines and enhance occupational health. Currently, there are few methods and measures for dust suppression during mine blasting. Some mines use water spraying for wet dust removal during blasting, which is a dust suppression measure used outside the blasting area.

[0003] To address the aforementioned issues, a dust suppression device for boreholes is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a dust suppression device for boreholes and a borehole for loading the dust suppression device, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust suppression device inside a borehole, comprising a foaming agent container and a chemical agent container; the foaming agent container includes a shell, a foaming agent injection port and a charging tube placement port, the shell forming an inner cavity for containing the foaming agent, and the foaming agent injection port and the charging tube placement port are both located on the shell.

[0006] The chemical reagent container extends into the inner cavity of the outer shell, and the opening of the chemical reagent container is connected to the placement port of the drug delivery tube. A crushing device is placed inside the chemical reagent container.

[0007] Furthermore, the foaming agent container has a cylindrical structure so that it can be easily destroyed when subjected to explosive impact.

[0008] Furthermore, the crushing device includes a crushing tip ball, which is placed in the chemical agent container. When the device is subjected to an explosive impact, the crushing tip ball impacts the chemical agent container, causing the chemical agent container to break.

[0009] Furthermore, the dust suppression device also includes a first cover plate and a second cover plate, which are respectively installed on the foaming agent injection port and the drug delivery tube placement port.

[0010] Furthermore, the chemical reagent container is a thin-walled cylindrical container.

[0011] Furthermore, the chemical reagent container can be configured as one or more.

[0012] A borehole for loading a dust suppression device includes a firing section and a filling section, wherein the dust suppression device is loaded into the filling section of the borehole.

[0013] Analysis shows that this utility model provides a dust suppression device for boreholes, including a foaming agent container and a chemical agent container. The foaming agent container includes a shell, a foaming agent injection port, and a charging tube placement port. The shell forms an inner cavity to accommodate the foaming agent, providing a sealed container for filling the foaming agent. The foaming agent injection port and the charging tube placement port are both located on the shell. The foaming agent is injected into the inner cavity formed by the shell through the foaming agent injection port, ensuring that the foaming agent can be smoothly filled into the foaming agent container. The chemical agent container extends into the inner cavity of the shell, and the opening of the chemical agent container communicates with the charging tube placement port. The chemical agent is filled through the charging tube placement port. The chemical agent is placed in the container; a crushing device is placed inside the container; when the device is subjected to an explosive impact, the dust suppression device will be affected by the explosive impact, which will cause the crushing device to vibrate violently. The irregular movement of the crushing device will puncture the outer wall of the chemical agent container, causing the chemical agent in the chemical agent container to come into contact with the foaming agent in the foaming agent container and undergo a violent chemical reaction, producing a large amount of foam. At the same time, due to the explosive impact and the broken rock, the outer wall of the foaming agent container is damaged, causing the foam to overflow, thereby capturing the dust around the blast, controlling the emission of blast dust from the source of blast dust, and reducing the dust emission range of the blast dust point.

[0014] Compared with the closest existing technology, the technical solution provided by this utility model has the following advantages: The current method of wet dust suppression using water spraying during mine blasting is used outside the blasting area. This invention provides a dust suppression device inside the blast hole. First, this device captures dust by generating foam through a violent chemical reaction. Compared to suppressing dust with water, foam has a stronger adsorption and capture capacity for dust. In addition, the volume of bubbles of the same mass is much larger than that of water, which can encapsulate more dust and cover more of the crushed stone surface. Second, this device is inserted into the blast hole and advanced to the blasting point through the blast hole, suppressing blasting dust at its source. Attached Figure Description

[0015] Figure 1 This is a top view of a dust suppression device inside a borehole, as an example of this utility model.

[0016] Figure 2This is a front view of a dust suppression device inside a borehole, according to an example of this utility model.

[0017] Figure 3 This is a side view of a dust suppression device inside a borehole, as described in this utility model.

[0018] Figure 4 This is a schematic diagram of the external shape of a dust suppression device inside a borehole, as an example of this utility model.

[0019] Figure 5 This is a cross-sectional schematic diagram of a dust suppression device inside a borehole, as an example of this utility model.

[0020] In the diagram: 1. Foaming agent container; 2. Chemical reagent container; 3. Outer shell; 4. Foaming agent filling port; 5. Drug filling tube placement port; 6. Crushing device; 7. First cover plate; 8. Second cover plate. Detailed Implementation

[0021] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0022] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0025] like Figures 1 to 3As shown, this utility model provides a technical solution: a dust suppression device inside a borehole, including a foaming agent container 1 and a chemical agent container 2; the foaming agent container 1 includes a shell 3, a foaming agent injection port 4 and a charging tube placement port 5, the shell 3 forms an inner cavity for containing the foaming agent, and the foaming agent injection port 4 and the charging tube placement port 5 are both opened on the shell 3.

[0026] The chemical agent container 2 extends into the inner cavity of the outer shell 3, and the opening of the chemical agent container 2 is connected to the drug delivery tube placement port 5.

[0027] The chemical reagent container 2 contains a crushing device 6.

[0028] In this embodiment, the foaming agent is composed of water, hydrogen peroxide, glycerin and detergent, and is sequentially added to the inner cavity formed by the outer shell 3 through the foaming agent injection port 4.

[0029] In this device, potassium iodide solution is used as the chemical agent and is injected into the chemical agent container 2 through the loading tube 5. Under the impact of the explosion, the outer wall of the chemical agent container 2 is broken by the crushing device 6, causing the potassium iodide solution to come into contact with the foaming agent composed of water, hydrogen peroxide, glycerin and detergent, producing a violent chemical reaction that generates foam. At the same time, the outer shell 3 also experiences instantaneous foam overflow due to the impact of the explosion and the collision with the broken rocks, allowing the foam to capture the dust around the explosion.

[0030] Preferably, the foaming agent container 2 has a cylindrical structure so that it can be easily destroyed when subjected to explosive impact.

[0031] In this embodiment, the foaming agent container 2 is a cylindrical structure made of plastic, which ensures that the outer shell 3 of the foaming agent container 2 can be easily broken by explosive impact and collision with broken rocks, so that the foam can fully contact the dust; in addition, the cylindrical structure of the foaming agent container 2 can better adapt to the internal space of the blast hole.

[0032] In one embodiment, the crushing device 6 includes a crushing ball placed in the chemical container 2. When the device is subjected to an explosive impact, the crushing ball strikes the chemical container 2, causing the chemical container to break.

[0033] In this embodiment, as Figure 5As shown, a crushing ball is used as the crushing device 6. Specifically, the crushing ball is gently placed into the chemical agent container 2 to prevent the crushing ball from puncturing the chemical agent container 2 during the process of placing it in, thus avoiding premature reaction between potassium iodide solution and chemical agent, which would affect the dust suppression efficiency. At the same time, the crushing ball can easily damage the outer wall of the chemical agent container 2 during the explosion process.

[0034] Preferably, such as Figure 4 As shown, the device also includes a first cover plate 7 and a second cover plate 8; the first cover plate 7 and the second cover plate 8 are respectively installed on the foaming agent injection port 4 and the drug delivery tube placement port 5.

[0035] In this embodiment, threads are provided on both the foaming agent injection port 4 and the drug delivery tube placement port 5. The first cover plate 7 and the second cover plate 8 are respectively tightened onto the foaming agent injection port 4 and the drug delivery tube placement port 5 by the threads, thereby improving the sealing of the device and preventing leakage of foaming agent and chemical agents.

[0036] Preferably, in this embodiment, the chemical container 2 is a thin-walled cylindrical container. First, because the outer wall of the chemical container 2 is very thin and fragile, the crushing device 6 can easily break the chemical container 2 when it is subjected to explosive impact. Second, constructing the chemical container 2 as a cylinder improves the chemical reaction effect between the potassium iodide solution and the foaming agent.

[0037] Preferably, the chemical reagent container 2 can be one or more. The number of chemical reagent containers 2 can be selected according to actual needs, thereby improving the reaction effect between potassium iodide solution and foaming agent.

[0038] A borehole for loading a dust suppression device is characterized in that it includes a firing section and a filling section, wherein the dust suppression device is loaded into the filling section of the borehole.

[0039] When the dust suppression device is placed in the lower part of the filling section, it is closer to the explosive detonation area and the foaming effect of the blasting vibration is more significant. At the same time, it is also closer to the pulverization area of ​​the explosion, which is more conducive to suppressing the initial dust dispersion of the blast.

[0040] When the dust suppression device is placed in the upper part of the blasting block, it is closer to the free surface and has a greater chance of being thrown into the upper blasting area as the blasted rocks are thrown upwards. This area has the highest dust concentration during the blasting process and is also the main source of dust emission. When the dust suppression device is thrown into this area and emits a large amount of foam, it can significantly reduce the dust concentration in this area.

[0041] More preferably, dust suppression devices can also achieve dust suppression and reduction functions when placed on the ground.

[0042] The specific process of using this device to suppress dust in the blasting area is as follows: During the preparation phase, the workers first fill the blast hole with explosives, then inject water, hydrogen peroxide, glycerin, and detergent sequentially into the foaming agent container 1 through the foaming agent injection port 4, tighten the first cover plate 7, and then inject potassium iodide solution into the chemical agent container 2 through the charging tube placement port 5. The crushing device 6 is also gently placed into the chemical agent container through the charging tube placement port 5, and the second cover plate 8 is tightened. The assembled dust suppression device is then gently placed into the blast hole, and subsequent blast hole filling and other blasting operations are completed. During the operation phase, when the blast occurs, the explosive shock wave causes the crushing device 6 to vibrate violently, which in turn impacts and breaks the chemical agent container 2. This causes a violent chemical reaction between the potassium iodide solution in the chemical agent container 2 and the solution in the foaming agent container, generating a large number of bubbles. The blast shock wave and the broken rock simultaneously tear the outer wall of the foaming agent container, causing the bubbles to overflow instantly. The overflowing bubbles capture the surrounding dust, thereby reducing the concentration of blast dust.

[0043] In summary, this utility model achieves the following technical effects: 1) The dust suppression device of this utility model is used inside the blast hole and can play a role in suppressing dust during blasting operations, thereby controlling the spread of blasting dust from the source of dust generation.

[0044] 2) This utility model captures dust by generating foam through the chemical reaction between the solution in the foaming agent container 1 and the solution in the chemical agent container 2. Compared with using water to suppress dust, foam has a stronger adsorption and capture ability for dust.

[0045] 3) This utility model places a crushing device 6 in the chemical reagent container 2 to easily destroy the outer wall of the chemical reagent container 2.

[0046] 4) Even if the dust suppression device ruptures prematurely inside the blast hole, the liquid that adheres to the rocks and dust after the foam generated by this invention liquefies will still foam again under the action of blasting vibration and explosive gas.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for boreholes, characterized in that, This includes containers for foaming agents and containers for chemical reagents; The foaming agent container includes an outer shell, a foaming agent filling port, and a drug delivery tube placement port. The outer shell forms an inner cavity for containing the foaming agent, and both the foaming agent filling port and the drug delivery tube placement port are located on the outer shell. The chemical reagent container extends into the inner cavity of the outer shell, and the opening of the chemical reagent container is in communication with the placement port of the drug delivery tube; The chemical reagent container is equipped with a crushing device.

2. The dust suppression device according to claim 1, characterized in that, The foaming agent container has a cylindrical structure so that it can be easily destroyed when subjected to explosive impact.

3. The dust suppression device according to claim 1, characterized in that, The crushing device includes a crushing ball placed inside the chemical container. When the device is subjected to an explosive impact, the crushing ball strikes the chemical container, causing it to break.

4. The dust suppression device according to claim 1, characterized in that, It also includes a first cover plate and a second cover plate; The first cover plate and the second cover plate are respectively installed on the foaming agent injection port and the drug delivery tube placement port.

5. The dust suppression device according to claim 1, characterized in that, The chemical reagent container is a thin-walled cylindrical container.

6. The dust suppression device according to claim 5, characterized in that, The chemical reagent container can be one or more.

7. A blast hole for loading a dust suppression device, characterized in that, It includes a firing section and a filling section, wherein the dust suppression device as described in any one of claims 1-6 is filled in the filling section of the borehole.

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