Open blast hole bottom accumulated water treatment device
By using a combination of mesh woven bags, water-soluble bags and highly absorbent resin material layers in open-pit gun holes, the high cost of water accumulation treatment of gun holes in open-pit mine engineering blasting is solved, and a rapid and economical blasting effect is achieved.
Patent Information
- Application Number
- CN202422565803.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In the prior art, open-pit mine engineering blasting lacks effective and rapid methods for treating water-containing gun holes, especially those with a water depth of less than 0.5 meters, resulting in high costs and increased workload.
An open-air gun hole bottom water accumulation treatment device is adopted, including a mesh woven bag on the outer layer and a water-soluble bag on the inner layer, a foamed polystyrene particle layer and a highly absorbent resin material layer. The water-soluble bag is dissolved by the water-soluble bag to form a gel, and after absorbing water, the paste-like colloid is formed to isolate explosives and wet materials, and reduce the blasting cost.
It realizes rapid treatment of water accumulation in the gun hole, reduces blasting costs, avoids the need for submersible pump drainage, and can use ammonium explosives for blasting, solving the problem of bottom plate lifting.
Smart Images
Figure CN223258762U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine blasting, in particular to a device for treating water accumulation at the bottom of an open-air blasthole. Background Art
[0002] Currently, there is no effective and rapid method for treating water-containing blastholes in open-pit mine blasting, especially those with water depths below 0.5 meters. Blasting can only be done with large quantities of expensive waterproof emulsion explosives. Using cheaper ammonium nitrate-oil explosives requires expensive submersible pumps for drainage, which increases the number of steps, the workload, and the cost of mine blasting. Utility Model Content
[0003] In view of the deficiencies in the prior art, the present invention provides a device for treating water accumulation at the bottom of an open-air blasthole, which solves the technical problems raised in the above-mentioned background technology.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an open-air blasthole bottom water accumulation treatment device, including an outer layer structure and an inner layer structure; the outer layer structure includes a mesh woven bag and a water-soluble bag, and the number of the water-soluble bags is two, and the two water-soluble bags are stacked in the mesh woven bag; the inner layer structure includes a foamed polystyrene particle layer and a super absorbent resin material layer, the super absorbent resin material layer is arranged in the water-soluble bag at the bottom, and the foamed polystyrene particle layer is arranged in the water-soluble bag above.
[0005] Preferably, the outer side of the mesh woven bag is provided with an inner hole fixing structure.
[0006] Preferably, both sides of the fixing structure in the hole are fan-shaped.
[0007] Preferably, a counterweight block is provided in the water-soluble bag below the super absorbent resin material layer, and the counterweight block is a cement prefabricated part counterweight block.
[0008] Beneficial effects
[0009] The utility model provides a device for treating water accumulation at the bottom of an open-air blasthole, which has the following beneficial effects:
[0010] 1. The mesh woven bag can be used to constrain and fix the internal material, thereby preventing the water-soluble bag from breaking when being put into the blasthole. The water-soluble bag can be provided. After the device is placed in the water-containing blasthole, the water in the blasthole contacts the water-soluble bag through the mesh woven bag. The water-soluble bag can quickly dissolve when it meets water, so that the super absorbent resin material layer contacts the water. The super absorbent resin material layer can utilize its ability to absorb water at least hundreds or thousands of times its own weight to quickly form a gel-like solid after absorbing water. At the same time, since the blasthole water is solidified to form a paste-like colloid, it can directly transmit the detonation pressure during the blasting process, and further destroy the blasthole surrounding rock containing the colloid part, so as to overcome the bottom plate elevation problem caused by insufficient depth. The expanded polystyrene particle layer has the characteristics of moisture and humidity insulation, so that the hydrogel formed after water absorption can be separated from the granular explosives.
[0011] 2. After the super absorbent resin material layer absorbs water and turns into a gel solid state, the explosive can be placed on the expanded polystyrene particle layer to avoid the explosive from contacting the super absorbent resin material layer that is wet after absorbing water, thereby avoiding affecting the blasting effect of the explosive. By using this device, the water in the blasthole can be cleaned without the need for a submersible pump to drain water, and after treatment, ammonium nitrate explosive can be used for blasting, greatly reducing the blasting cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0013] Figure 2 for Figure 1 Cross-sectional view of AA in the figure.
[0014] In the figure: 1. Mesh woven bag; 2. Water-soluble bag; 3. Expanded polystyrene particle layer; 4. Super absorbent resin layer; 5. In-hole fixing structure; 6. Counterweight. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention, wherein the directional terms such as "upper" and "lower" mentioned herein are as follows: Figure 1 The orientation is referenced.
[0016] See also Figure 1-2The utility model provides a technical solution: a device for treating water accumulation at the bottom of an open-air blasthole, comprising an outer layer structure and an inner layer structure; the outer layer structure comprises a mesh woven bag 1 and a water-soluble bag 2, two water-soluble bags 2 are stacked in the mesh woven bag 1; the inner layer structure comprises a foamed polystyrene particle layer 3 and a super absorbent resin material layer 4, the super absorbent resin material layer 4 is arranged in the water-soluble bag 2 at the bottom, and the foamed polystyrene particle layer 3 is arranged in the water-soluble bag 2 at the top.
[0017] By providing a mesh woven bag 1, it can be used to constrain and fix the internal material to prevent the water-soluble bag from breaking when it is put into the blasthole. By providing a water-soluble bag 2, after the device is placed in the water-containing blasthole, the water in the blasthole contacts the water-soluble bag 2 through the mesh woven bag 1. The water-soluble bag 2 can quickly dissolve after meeting water, so that the highly absorbent resin material layer 4 contacts the water. By providing a highly absorbent resin material layer 4, the highly absorbent resin material can utilize its ability to absorb water at least hundreds or thousands of times its own weight. After absorbing water, the material can quickly form a gel-like solid. At the same time, since the blasthole water is solidified to form a paste-like colloid, it can directly transmit the detonation pressure during the blasting process, and has a further destructive effect on the blasthole surrounding rock containing the colloid part, so as to overcome the problem of bottom plate elevation caused by insufficient ultra-depth. A foamed polystyrene particle layer 3 is provided, which has the characteristics of moisture and humidity insulation, so that the gel formed after water absorption can be separated from the granular explosive. After multiple tests, under the pressure of the upper granular explosive in the blasthole, water is kept from being precipitated from the hydrogel body. Its optimal ratio, the ratio of water absorption to per gram of high molecular water-absorbing material is 72, and its ability to lock water and cost consumption are optimal. Therefore, after the super absorbent resin material layer 4 absorbs water and becomes a gel solid state, the explosive can be placed on the foamed polystyrene particle layer 3 to avoid contact between the explosive and the super absorbent resin material layer 4 that is wet after water absorption, thereby avoiding affecting the blasting effect of the explosive. By using this device, the water in the blasthole can be cleaned without the need for a submersible pump to drain water, and after treatment, ammonium nitrate explosive can be used for blasting, which greatly reduces the blasting cost.
[0018] Furthermore, an inner hole fixing structure 5 is provided on the outer side of the mesh woven bag 1. By providing the inner hole fixing structure 5, the device can be fixed underwater to prevent reverse floating.
[0019] Furthermore, both sides of the in-hole fixing structure 5 are fan-shaped, and the in-hole fixing structure 5 is configured as a fan-shaped structure to facilitate the fixing of the device.
[0020] Furthermore, a counterweight block 6 is provided in the water-soluble bag 2 located below the super absorbent resin material layer 4. The counterweight block 6 is a cement prefabricated counterweight block 6. By installing the counterweight block 6, when the device is placed in the blasthole, the device can sink into the water under the action of gravity.
[0021] The working principle and usage process of the present invention are as follows: when in use, first place the counterweight 6 at the bottom of the mesh woven bag 1, then put the super absorbent resin material into the water-soluble bag 2 and place it at the bottom of the mesh woven bag 1, then put the expanded polystyrene particles into another water-soluble bag 2 and place it above the water-soluble bag 2 filled with the super absorbent resin material, put the in-hole fixing structure 5 on the outer 2 / 5 of the mesh woven bag 1 and tighten it, measure the water depth of the water hole in the blasting area, pick out the blastholes with conditions below 0.5 meters, and then place the entire structure in the water-containing blasthole and fix it, absorb the water in the blasthole through the device, throw stones after 3 minutes to test whether the blasthole has become dry, and if it has become dry, put in explosives to start the blasting operation.
[0022] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for treating water accumulation at the bottom of an open-air blasthole, characterized in that: The invention comprises an outer layer structure and an inner layer structure; the outer layer structure comprises a mesh woven bag (1) and a water-soluble bag (2); the number of the water-soluble bags (2) is two, and the two water-soluble bags (2) are stacked in the mesh woven bag (1); the inner layer structure comprises a foamed polystyrene particle layer (3) and a super absorbent resin material layer (4); the super absorbent resin material layer (4) is arranged in the water-soluble bag (2) at the bottom, and the foamed polystyrene particle layer (3) is arranged in the water-soluble bag (2) at the top.
2. The device for treating water accumulation at the bottom of an open-air blasthole according to claim 1, characterized in that: The outer side of the mesh woven bag (1) is provided with an inner hole fixing structure (5).
3. The device for treating water accumulation at the bottom of an open-air blasthole according to claim 2, characterized in that: Both sides of the in-hole fixing structure (5) are fan-shaped.
4. The device for treating water accumulation at the bottom of an open-air blasthole according to claim 1, characterized in that: A counterweight (6) is provided in the water-soluble bag (2) below the super absorbent resin material layer (4), and the counterweight (6) is a prefabricated cement counterweight (6).