Open blasting dust fall protection device
By installing protective covers and multi-layered protective structures on the outside of the nozzles of the open-air blasting dust suppression device, the problem of easy damage to the nozzles was solved, the reliability and dust suppression effect of the device were improved, and the health of the workers was protected.
Patent Information
- Application Number
- CN202520569614.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing open-air blasting dust suppression devices have nozzles that are susceptible to damage from flying rocks and shock waves, and their lifespan is shortened in high-dust environments, affecting dust suppression effectiveness and equipment reliability.
A protective cover is installed on the outside of the nozzle, including a U-shaped support frame, a limiting groove frame, a guide protective plate, a damper, and a buffer spring, forming a multi-layer protection to prevent flying stones and shock waves from damaging the nozzle. Dust is collected by a dust collection strip to ensure smooth water mist spraying.
It effectively protects the nozzles, improves the reliability and lifespan of the dust suppression device, reduces maintenance costs, reduces dust pollution, and protects the health of operators.
Smart Images

Figure CN223826916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust suppression technology in blasting, specifically to a dust suppression protection device for open-air blasting. Background Technology
[0002] Dust pollution is a pressing environmental problem in open-pit blasting operations. Dust not only severely pollutes the surrounding environment but also harms the health of workers. Therefore, the use of dust suppression devices in open-pit blasting is particularly important. However, most existing dust suppression devices employ a multi-nozzle spray structure, which has many limitations in practical application.
[0003] Specifically, in existing nozzle-type dust suppression devices, the nozzles are directly exposed during blasting operations, lacking effective protective measures. Flying rocks and strong shock waves generated during blasting directly impact the nozzles, causing damage, deformation, or blockage, thus affecting dust suppression efficiency. Furthermore, the nozzles, constantly exposed to high dust concentrations, are susceptible to dust corrosion, further shortening their lifespan. This situation not only increases equipment maintenance costs but also reduces the overall reliability of the dust suppression system.
[0004] To overcome the shortcomings of existing technologies, this utility model proposes an open-air blasting dust suppression protection device. By setting a protective structure on the outside of the nozzle, it effectively blocks flying debris and shock waves, while ensuring that water mist or other dust suppression media can be sprayed smoothly. Utility Model Content
[0005] This utility model provides a dust suppression and protection device for open-air blasting.
[0006] The specific technical solution is as follows: an open-air blasting dust suppression protection device includes a protective cover, which is a hollow structure with an open bottom and two or more U-shaped support frames on the top. At least one limiting groove frame is provided between two adjacent U-shaped support frames for the spray head to pass through. The spray head is set at the bottom of the dust suppression container through a connecting pipe, and the connecting pipe is connected to the dust suppression container. When the spray head passes through the limiting groove frame and extends into the protective cover, the dust suppression container is just stuck on the U-shaped support frame.
[0007] Furthermore, preferably, the bottom of the spray head is provided with a guide protective plate, the size of which is adapted to the limiting groove frame, so that it can slide within the limiting groove frame.
[0008] Furthermore, preferably, dampers are evenly connected around the inner wall of the protective cover, and a protective pad is connected to the other end of the damper. A buffer spring is sleeved around the outer periphery of the damper, with one end of the buffer spring connected to the inner wall of the protective cover and the other end connected to the outer wall of the protective pad.
[0009] Furthermore, preferably, both sides of the protective cover and the protective pad are symmetrically provided with through grooves, and a dust-absorbing strip is provided through the through groove. One side of the dust-absorbing strip extends to the inside of the protective pad, and the other side extends to the outside of the protective cover and connects to the dust collection box, which is set on the outer wall of the protective cover.
[0010] Furthermore, preferably, the bottom of the protective cover is provided with a fixing groove frame, and multiple sets of sturdy ground nails are evenly arranged through the fixing groove frame.
[0011] The beneficial effects of this utility model are as follows: By setting up a protective cover and optimizing its design in various ways, this utility model effectively protects the spray head and dust suppression equipment, blocking the damage to key components caused by flying debris and shock waves. It also has functions such as precise guidance, dual protection, buffering and shock absorption, efficient dust removal and dust prevention, achieving an organic combination of efficient dust suppression, equipment protection and environmental adaptability. It can be widely used in open-air blasting operations, effectively reducing dust pollution, protecting the health of workers, and reducing the impact on the surrounding environment. It has high practicality and promotional value. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of an open-air blasting dust suppression protection device according to the present invention;
[0013] Figure 2 This is a schematic diagram of the top structure of the protective shield;
[0014] Figure 3 This is a schematic diagram of the dust collection container.
[0015] Figure 4 This is a schematic diagram of the internal buffer mechanism of the protective shield;
[0016] In the diagram: 1-protective cover; 2-fixed groove frame; 3-stable ground nail; 4-U-shaped support frame; 5-limiting groove frame; 6-dust collection container; 7-connecting pipe; 8-spray head; 9-guide protective plate; 10-damper; 11-buffer spring; 12-protective pad; 13-through groove; 14-dust suction strip; 15-dust collection box. Detailed Implementation
[0017] To make the technical problems and solutions solved by this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 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.
[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] like Figures 1 to 2 As shown, an open-air blasting dust suppression protection device includes a protective cover 1, which is a hollow structure with an open bottom. The top is provided with two or more U-shaped support frames 4, and at least one limiting groove frame 5 is provided between two adjacent U-shaped support frames 4 for a spray head 8 to pass through. The spray head 8 is set at the bottom of the dust suppression container 6 through a connecting pipe 7, and the connecting pipe 7 is connected to the dust suppression container 6. When the spray head 8 passes through the limiting groove frame 5 and extends into the protective cover 1, the dust suppression container 6 is just stuck on the U-shaped support frame 4.
[0021] In use, all spray heads 8 are aligned and pass through the corresponding limiting slots 5 until the dust collection container 6 is just locked onto the U-shaped support frame 4. At this time, the spray heads 8 smoothly extend into the protective cover 1, and the protective cover 1 forms a protective structure around the entire perimeter, which can effectively block splashing gravel and shock waves from damaging the spray heads 8, ensuring that water mist or other dust-suppressing media can be sprayed out smoothly.
[0022] In a preferred embodiment, the bottom of the spray head 8 is provided with a guide protective plate 9. The size of the guide protective plate 9 is adapted to the limiting groove frame 5, allowing it to slide within the limiting groove frame 5. As the spray head 8 passes through the limiting groove frame 5, the guide protective plate 9 fits tightly against the inner wall of the limiting groove frame 5, guiding the spray head 8 and preventing it from colliding and being damaged. Simultaneously, when gravel splashes into the protective cover 1, the guide protective plate 9 provides secondary protection for the spray head 8, further enhancing the protective performance of the device.
[0023] As a further preferred embodiment, dampers 10 are evenly connected around the inner wall of the protective cover 1. A protective pad 12 is connected to the other end of each damper 10. A buffer spring 11 is fitted around the outer periphery of each damper 10, with one end connected to the inner wall of the protective cover 1 and the other end connected to the outer wall of the protective pad 12. The dampers 10, buffer spring 11, and protective pad 12 together constitute the internal buffering mechanism of the protective cover 1. When gravel splashes into the protective cover 1, this buffering mechanism effectively releases the impact force of the gravel, providing buffering protection and thus protecting the inner wall of the protective cover 1 from damage.
[0024] In a further preferred design, both sides of the protective cover 1 and the protective pad 12 are symmetrically provided with through grooves 13. A dust-absorbing strip 14 is installed through each through groove 13. One side of the dust-absorbing strip 14 extends to the inside of the protective pad 12, and the other side extends to the outside of the protective cover 1, connecting to a dust collection box 15. The dust collection box 15 is located on the outer wall of the protective cover 1. When dust generated by the blast diffuses into the entrance of the protective cover 1, the dust-absorbing strip 14 can absorb and collect the dust in the dust collection box 15, thereby preventing a large amount of dust from entering the protective cover 1 and adhering to the inner wall and spray nozzle 8, thus affecting the protective and spraying effects.
[0025] As another preferred embodiment, the bottom of the protective cover 1 is provided with a fixing frame 2, and multiple sets of stabilizing nails 3 are evenly arranged through the fixing frame 2. The combined use of the fixing frame 2 and the stabilizing nails makes the installation of the protective cover 1 more convenient. According to actual usage requirements, the protective cover 1 can be installed in blasting operation areas that require dust suppression, thereby significantly improving the stability of the device and ensuring its stable operation even in harsh environments, thus performing excellent dust suppression and protection functions.
[0026] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A dust suppression and protection device for open-air blasting, characterized in that: It includes a protective cover (1), which is a cavity structure with an open bottom and two or more U-shaped support frames (4) on the top. At least one limiting groove frame (5) is provided between two adjacent U-shaped support frames (4) for the spray head (8) to pass through. The spray head (8) is set at the bottom of the dust collection container (6) through a connecting pipe (7). The connecting pipe (7) is connected to the dust collection container (6). When the spray head (8) passes through the limiting groove frame (5) and extends into the protective cover (1), the dust collection container (6) is just stuck on the U-shaped support frame (4).
2. The dust suppression device for open-air blasting according to claim 1, characterized in that: The bottom of the spray head (8) is provided with a guide guard plate (9), the size of which is adapted to the limiting groove frame (5) so that it can slide within the limiting groove frame (5).
3. The dust suppression device for open-air blasting according to claim 1 or 2, characterized in that: The inner wall of the protective cover (1) is uniformly connected with dampers (10), and the other end of the damper (10) is connected to a protective pad (12). A buffer spring (11) is sleeved on the outer periphery of the damper (10). One end of the buffer spring (11) is connected to the inner wall of the protective cover (1), and the other end is connected to the outer wall of the protective pad (12).
4. The dust suppression device for open-air blasting according to claim 3, characterized in that: Both sides of the protective cover (1) and the protective pad (12) are symmetrically provided with through grooves (13). A dust-absorbing strip (14) is provided through the through groove (13). One side of the dust-absorbing strip (14) extends to the inside of the protective pad (12), and the other side extends to the outside of the protective cover (1) and connects to the dust collection box (15). The dust collection box (15) is provided on the outer wall of the protective cover (1).
5. An open-air blasting dust suppression device according to claim 1 or 4, characterized in that: The bottom of the protective cover (1) is provided with a fixing groove frame (2), and multiple sets of sturdy ground nails (3) are evenly arranged through the fixing groove frame (2).