Movable noise reduction device for surface roadway blasting tunneling

Abstract

The utility model discloses a movable noise reduction device for surface roadway blasting tunneling, which comprises a supporting, blocking and silencing component (1) and a walking component (6), and the supporting, blocking and silencing component (1) is fixedly connected to the walking component (6); the supporting, blocking and silencing component (1) is of a door frame type structure, longitudinal beams (2) and cross beams (2 ') are arranged in a frame of the supporting, blocking and silencing component (1), aluminum plates (5) are arranged in gaps of the longitudinal beams (2) and the cross beams (2') in a welding mode, and honeycomb-shaped silencing cotton (4) and dense metal nets (3) are sequentially arranged on the surfaces, facing the blasting waste rock direction, of the aluminum plates (5). In actual use, after blasting charge, blasting operators push the noise reduction device to a hole, the noise reduction device and the hole are tightly attached together, and relevant reinforcement measures are adopted, so that the effect of reducing noise is achieved, and the influence of blasting noise on the life of surrounding residents is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of blasting operation safety in surface excavation engineering, specifically relating to a mobile noise reduction device for blasting and excavation of surface tunnels. Background Technology

[0002] With the increasing demand for mineral resources due to economic development, shallow mineral resources have gradually become depleted. Most mines at home and abroad have successively entered the deep resource mining. Large and medium-sized underground mines need to build corresponding ramp engineering projects, which undertake the tasks of transporting personnel, materials and equipment.

[0003] Pumped storage power stations are currently the most commonly used large-scale energy storage technology, mainly used for peak shaving and valley filling, frequency and phase regulation, and emergency backup in power systems. Currently, various provinces are accelerating the construction of a number of pumped storage power stations.

[0004] The mine's inclined tunnel and the preliminary exploration tunnel for the pumped storage power station are located on the surface, near surrounding villages, and both require blasting for excavation. The shock waves and noise generated during blasting operations can impact the lives of nearby residents and even lead to serious consequences. Therefore, noise reduction facilities for surface tunnel blasting are necessary. Summary of the Invention

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a mobile noise reduction device for surface tunnel blasting and excavation, which can significantly reduce the impact of shock waves and noise generated during blasting operations on the lives of surrounding residents.

[0006] To achieve the above-mentioned objectives of this utility model, the present utility model provides a mobile noise reduction device for surface tunnel blasting and excavation, which adopts the following technical solution:

[0007] This utility model discloses a movable noise reduction device for surface tunnel blasting and excavation. It includes a supporting and sound-absorbing component and a traveling component. The supporting and sound-absorbing component is located on the outside of the tunnel and is connected and fixed to the traveling component. The supporting and sound-absorbing component has a door frame structure. Longitudinal beams and transverse beams are provided within the frame of the supporting and sound-absorbing component. Aluminum plates are arranged by welding between the gaps of the longitudinal beams and transverse beams. Honeycomb sound-absorbing cotton and dense metal mesh are arranged sequentially on the surface of the aluminum plates facing the direction of the blasting waste rock. The dense metal mesh is used to prevent the honeycomb sound-absorbing cotton from being damaged by flying rocks during blasting, and the honeycomb sound-absorbing cotton is used to reduce blasting noise.

[0008] Preferably, shock wave release holes are arranged at intervals along the surface of the aluminum plate to release blast shock waves.

[0009] Preferably, the honeycomb sound-absorbing cotton is composed of a first layer of honeycomb sound-absorbing cotton and a second layer of honeycomb sound-absorbing cotton, which are arranged sequentially on the aluminum plate and fixed with rivets and pressure strips.

[0010] Preferably, the walking component has a triangular structure, welded from stainless steel square tubing, and has sliding rollers at its bottom, allowing it to move when pushed by a person. The dimensions of the walking component are adjusted according to the supporting components.

[0011] Preferably, holes are drilled in the stainless steel square tube at the bottom of the walking component, and two movable diagonal braces are added to both ends of the back of the supporting, blocking, and noise-reducing component. Circular rings are welded to the bottom of the diagonal braces, and pins are used to secure both the circular holes and the circular rings. The purpose of adding the two movable diagonal braces is to prevent the movable noise reduction device from being knocked over by the blast shock wave.

[0012] Furthermore, the supporting, blocking, and noise-absorbing components are connected to the walking components by welding, and both are made of stainless steel square tubes with a specification of 3cm×3cm and a thickness of 3mm; the internal gap of the dense metal mesh is 1cm×1cm; shock wave release holes are arranged at 10cm×10cm intervals along the surface of the aluminum plate; the diagonal bracing rod is made of galvanized steel pipe with a diameter of 2cm and a wall thickness of 5mm.

[0013] In practical applications, noise reduction devices of appropriate size are manufactured according to the dimensions of the mine ramp engineering and the preliminary exploration tunnel of the pumped storage power station. Before detonation, the blasting personnel push the noise reduction devices to the tunnel entrance, place them close together, and take relevant reinforcement measures.

[0014] The present invention discloses a mobile noise reduction device for surface tunnel blasting and excavation. After adopting the above technical solution, it has the following beneficial effects:

[0015] (1) This utility model can be processed into a noise reduction device of a suitable size according to the size of the horizontal tunnel in the early exploration of the mine slope engineering and pumped storage power station. The overall structure is relatively simple, easy to process and manufacture, and the cost is relatively cheap.

[0016] (2) The present invention has a dense metal mesh installed in front of the supporting and blocking sound-absorbing component, which can effectively prevent blasting flying stones from damaging the honeycomb sound-absorbing cotton and destroying the surrounding related facilities.

[0017] (3) The present invention uses double-layer honeycomb sound-absorbing cotton on aluminum plate to reduce explosion noise and reduce the impact on the lives of surrounding residents.

[0018] This invention involves creating a hole in the aluminum plate to release the blast shock wave through the shock wave release hole, thus preventing the shock wave from affecting the overall stability of the portable noise reduction device. Attached Figure Description

[0019] Figure 1 This is a front view of a mobile noise reduction device for surface tunnel blasting and excavation according to the present invention.

[0020] Figure 2 This is a top view of a mobile noise reduction device for surface tunnel blasting and excavation according to the present invention.

[0021] Figure 3 This is a schematic diagram of the aluminum plate with holes arranged in the support, blocking and noise reduction component of this utility model.

[0022] Figure 4 This is a schematic diagram illustrating the operation of this utility model.

[0023] The attached diagram is labeled as follows: 1. Supporting and sound-absorbing component; 2. Longitudinal beam; 2'. Crossbeam; 3. Dense metal mesh; 4. Honeycomb sound-absorbing cotton; 4-1. First layer of honeycomb sound-absorbing cotton; 4-2. Second layer of honeycomb sound-absorbing cotton; 5. Aluminum plate; 6. Walking component; 7. Rolling pulley; 8. Pin; 9. Explosive flying rock / explosive shock wave / explosive noise; 10. Diagonal brace; 11. Ring; 12. Shock wave release hole. Detailed Implementation

[0024] To better describe this utility model, the following description, in conjunction with the accompanying drawings and embodiments, provides a more detailed description of a mobile noise reduction device for surface tunnel blasting and excavation.

[0025] Depend on Figure 1 The image shown is a front view of a mobile noise reduction device for surface tunnel blasting, according to this utility model, and is combined with... Figure 2 , Figure 3As can be seen in the embodiment, the present invention provides a movable noise reduction device for surface tunnel blasting and excavation, comprising a supporting and sound-absorbing component 1 and a traveling component 6. The supporting and sound-absorbing component 1 is connected and fixed to the traveling component 6. The supporting and sound-absorbing component 1 is a door frame structure, welded from stainless steel square tubing with a specification of 3cm×3cm and a thickness of 3mm. The overall external dimensions are adjusted according to the tunnel cross-section specifications (e.g., 4.5m×3.9m). Within the frame of the supporting and sound-absorbing component 1, longitudinal beams 2 and transverse beams 2' are provided, and the longitudinal beams 2 and transverse beams 2' are optimized and adjusted according to the tunnel opening cross-section dimensions. Aluminum plates 5 are welded between the longitudinal beams 2 and transverse beams 2', and honeycomb-shaped sound-absorbing cotton 4 and dense metal mesh 3 are sequentially arranged on the surface of the aluminum plates 5 facing the direction of the blasting waste rock. The purpose of setting the dense metal mesh 3 is to prevent blasting debris from damaging the honeycomb-shaped sound-absorbing cotton 4. The internal gap of the dense metal mesh 3 is 1cm×1cm. To reduce the damage of the blast shock wave to the supporting and sound-absorbing component 1 and the honeycomb sound-absorbing cotton 4, shock wave release holes 12 are arranged at 10cm×10cm intervals along the surface of the aluminum plate 5 to disperse the blast shock wave in a timely manner. The honeycomb sound-absorbing cotton 4 is composed of a first layer of honeycomb sound-absorbing cotton 4-1 and a second layer of honeycomb sound-absorbing cotton 4-2. The thickness of the first layer of honeycomb sound-absorbing cotton 4-1 and the second layer of honeycomb sound-absorbing cotton 4-2 is 10cm. They are arranged sequentially on the aluminum plate 5 and fixed with rivets and pressure strips, thereby ensuring that the blast noise can be absorbed by the honeycomb sound-absorbing cotton 4 in a timely manner.

[0026] Depend on Figure 4 The diagram shown illustrates the operation of this utility model during application, and is combined with... Figure 1 , Figure 2 It can be seen that the supporting and sound-absorbing component 1 and the walking component 5 are connected by welding, both made of stainless steel square tubes with a specification of 3cm×3cm and a thickness of 3mm. The walking component 6 is a triangular structure, made of stainless steel square tubes. The size of the walking component 6 can be adjusted in time according to the supporting component. A sliding roller 7 is provided at the bottom of the walking component 6 to facilitate the operator to push the noise reduction device to the opening. The design includes drilled holes (1cm in diameter) on the stainless steel square tube at the bottom of the walking component 6, 5cm on both sides of the sliding roller 7. Two movable diagonal braces 10 are added to the two ends of the back of the supporting and sound-absorbing component 1. The diagonal braces 1 are made of galvanized steel pipes with a diameter of 2cm and a wall thickness of 5mm. A circular ring 11 (1cm in diameter) is welded to the bottom of the diagonal brace 10. The circular holes and the circular rings are fixed with pins 8 to prevent the noise reduction device from being knocked over by the blast shock wave, which plays a double insurance role.

[0027] In practical use, this utility model can be selected with appropriate size according to the location of use, and can absorb the blasting noise generated during the blasting operation of the preliminary exploration tunnel of the mine slope project and pumped storage power station in a timely manner, thereby reducing the impact of blasting noise on the lives of surrounding residents.

[0028] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 mobile noise reduction device for surface tunnel blasting and excavation, characterized in that: It includes a support and sound-absorbing component (1) and a walking component (6). The support and sound-absorbing component (1) is connected and fixed on the walking component (6). The support and sound-absorbing component (1) is a door frame structure. The support and sound-absorbing component (1) is provided with longitudinal beams (2) and cross beams (2') in the frame. Aluminum plates (5) are arranged by welding in the gaps between the longitudinal beams (2) and cross beams (2'). Honeycomb sound-absorbing cotton (4) and dense metal mesh (3) are arranged sequentially on the surface of the aluminum plate (5) facing the direction of the blasted waste rock.

2. The mobile noise reduction device for surface tunnel blasting excavation as described in claim 1, characterized in that: Shock wave release holes (12) are arranged at intervals along the surface of the aluminum plate (5).

3. The mobile noise reduction device for surface tunnel blasting excavation as described in claim 1, characterized in that: The honeycomb sound-absorbing cotton (4) is composed of a first layer of honeycomb sound-absorbing cotton (4-1) and a second layer of honeycomb sound-absorbing cotton (4-2), which are arranged sequentially on the aluminum plate (5) and fixed with rivets and pressure strips.

4. The mobile noise reduction device for surface tunnel blasting excavation as described in claim 1, characterized in that: The walking component (6) is a triangular structure, made of stainless steel square tube welded together, and has sliding rollers (7) at the bottom.

5. A mobile noise reduction device for surface tunnel blasting excavation as described in claim 4, characterized in that: A hole is provided on the stainless steel square tube at the bottom of the walking component (6), and two movable diagonal braces (10) are added to the two ends of the back of the supporting, blocking and noise-absorbing component (1). A ring (11) is welded to the bottom of the diagonal brace (10), and pins (8) are used to fix the hole and the ring.

6. A mobile noise reduction device for surface tunnel blasting excavation as described in claim 2, characterized in that: The honeycomb sound-absorbing cotton (4) is composed of a first layer of honeycomb sound-absorbing cotton (4-1) and a second layer of honeycomb sound-absorbing cotton (4-2), which are arranged sequentially on the aluminum plate (5) and fixed with rivets and pressure strips; the walking component (6) is a triangular structure, which is welded from stainless steel square tubes, and a sliding roller (7) is provided at the bottom of the walking component (6); a hole is provided on the stainless steel square tube at the bottom of the walking component (6), and two movable diagonal braces (10) are added to the two ends of the back of the supporting and blocking sound-absorbing component (1). The bottom of the diagonal brace (10) is welded with a ring (11), and the hole and the ring are fixed with pins (8).

7. A mobile noise reduction device for surface tunnel blasting excavation as described in claim 6, characterized in that: The supporting, blocking, and noise-absorbing component (1) and the walking component (6) are connected by welding and are both made of stainless steel square tubes with a specification of 3cm×3cm and a thickness of 3mm.

8. A mobile noise reduction device for surface tunnel blasting excavation as described in claim 7, characterized in that: The internal gap of the dense metal mesh (3) is 1cm×1cm.

9. A mobile noise reduction device for surface tunnel blasting excavation as described in claim 8, characterized in that: Shock wave release holes (12) are arranged at 10cm×10cm intervals along the surface of the aluminum plate (5).

10. A mobile noise reduction device for surface tunnel blasting excavation as described in claims 5, 6, 7, 8, or 9, characterized in that: The diagonal brace (10) is made of galvanized steel pipe with a diameter of 2cm and a wall thickness of 5mm.

Images