Blasting dust falling system and dust falling method

Abstract

The invention discloses a blasting dust falling system and method. The blasting dust falling system comprises a blasting module, a dynamic water mist module, a movable water spraying module and a control module. The blasting module is used for blasting operation of a blasting area; the dynamic water mist module is used for generating dust suppression water mist; the movable water sprinkling module is used for moving to different areas and sprinkling water to adjacent areas; the control module is electrically connected with and controls the blasting module, the dynamic water mist module and the movable watering module. The dust falling method is based on the blasting dust falling system. According to the blasting dust falling system and the dust falling method, the dynamic water mist module is matched with the movable water spraying module, dust falling operation is achieved, and dust raising and diffusion caused by blasting operation are controlled. The control module is used for controlling the functional modules, unattended intelligent blasting and dust falling are achieved, manual participation is reduced, intelligence is improved, and automatic operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of blasting dust suppression, and in particular to a blasting dust suppression system and a dust suppression method. Background Art

[0002] Blasting operation is a commonly used construction method. During blasting operation, a large amount of explosive gas with huge energy is generated when the explosives explode. The high-temperature and high-pressure explosive gas expands rapidly and squeezes the rocks around the explosives to do external work. The rocks are squeezed and crushed to produce a large amount of dust particles. These particles are released into the open space outside under the impact of the explosion.

[0003] The dust generated by blasting will have many adverse effects on the environment, climate, and personnel health of the work site and nearby work and rest areas. It has the characteristics of spreading pollution, and the tiny dust particles are not easy to settle naturally.

[0004] In the prior art, there are three common blasting dust reduction technologies, namely dry dust reduction, wet dust reduction and combined dust reduction. The most commonly used method among the three methods is wet dust reduction, because this method is highly efficient, low cost, and has a more obvious dust reduction effect.

[0005] Commonly used wet dust suppression methods are:

[0006] 1. Pressure water dust reduction technology. When drilling, pressurized water is injected into the pre-mined rock working surface in advance. Pre-wetting the rock during blasting can prevent the spread of dust sources. However, this technology has certain requirements for the blasting and mining rock formations. The dust reduction rate is often low in intact rock formations with no cracks and high hardness due to poor permeability.

[0007] 2. Blasting water bag dust reduction technology. Water cannon mud is used to replace part of the clay cannon mud to achieve dust reduction. Considering the adhesion of dust, certain inorganic salts, anionic surfactants, dust adhesives and other additives can be added to the water cannon mud to reduce the surface tension of water and increase its wetting ability. This dust reduction technology is mainly effective for blasthole dust, and cannot directly affect the surface dust and the dust generated by rock layer extrusion and crushing, and the dust reduction effect is limited.

[0008] 3. Foam dust reduction technology. This technology mainly forms foam through the physical foaming process of mixing air, water and foaming agent. The foam is sprayed into the blasting area to cover the main dust source without gaps and wrap the dust. After the blasting operation, the surrounding dust will stick together, increasing the dust's own weight, thereby achieving the purpose of natural sedimentation. However, due to the complex ratio of the foaming mixture and the high cost of the foaming agent, this technology has not yet been widely applied to actual projects.

[0009] 4. Water curtain dust reduction technology. Water curtain dust reduction technology starts from the dust source location, hangs plastic bags filled with water in the main dust reduction area, uses the curtain-shaped water curtain area formed during blasting, and uses atomized water to adsorb dust and limit it to the water curtain area to prevent it from spreading over a large area. However, this technology is cumbersome to implement and has high requirements for the construction environment. The application effect in open-air environments is poor.

[0010] However, the existing blasting dust reduction technology cannot achieve blasting dust reduction in the entire area and the entire process, and it relies heavily on manual labor and has a low degree of automation. Summary of the invention

[0011] The technical problem to be solved by the present invention is that the existing blasting dust reduction technology cannot achieve full-area and full-process blasting dust reduction, and relies heavily on manual labor with a low degree of automation. The purpose is to provide a blasting dust reduction system and a dust reduction method to solve the above problems.

[0012] The present invention is achieved through the following technical solutions:

[0013] In a first aspect, the present invention provides a blasting dust suppression system, including a blasting module, a dynamic water mist module, a mobile watering module and a control module;

[0014] The blasting module is electrically connected to the control module and is used for blasting operations in the blasting area;

[0015] The dynamic water mist module is arranged outside the blasting area and is electrically connected to the control module. Accordingly, the dynamic water mist module is used to generate water mist for dust suppression;

[0016] The mobile watering module is movably arranged outside the blasting area and is electrically connected to the control module. Accordingly, the mobile watering module is used to move to different areas and spray water to adjacent areas.

[0017] The control module is electrically connected to and controls the blasting module, the dynamic water mist module and the mobile sprinkler module.

[0018] In a possible design, the blasting module includes an in-hole blasting assembly and a surface detonation assembly, the in-hole blasting assembly is installed in the blasting hole, the surface detonation assembly is installed on the surface of the blasting area, and the blasting hole and the surface of the blasting area are respectively provided with a plurality of flameproof water bags;

[0019] Correspondingly, the control module is electrically connected to the in-hole blasting assembly and the surface detonation assembly, respectively, so that the detonation time of the in-hole blasting assembly is earlier than the detonation time of the surface detonation assembly.

[0020] In one possible design, the detonation timing difference Δt = the detonation time in the hole T H -Surface detonation time T S , that is, Δt=T H -T S, and Δt~300-500ms.

[0021] In one possible design, the dynamic water mist module includes a control unit, a water pipe and a nozzle. The control unit is arranged on the water pipe and electrically connected to the control module. The water pipe has a water inlet end connected to the municipal water network and a water spraying end arranged in the blasting area. There are several nozzles and they are respectively arranged at the water spraying ends of the water pipe, and the spray holes on the nozzles are all micron-level.

[0022] In a possible design, the water pipe includes a main pipe and branch pipes. There is at least one main pipe connected to the municipal water network, and there are several branch pipes arranged around the blasting area. Accordingly, each main pipe is connected to multiple branch pipes, and each branch pipe is connected to multiple nozzles.

[0023] In one possible design, the mobile sprinkler module includes a track, a water tank, a water pump and a nozzle. The track is laid in and around the blasting area, the water tank is slidably set on the track, the water pump is set on the water tank, and the output end of the water pump is connected to the nozzle. Accordingly, the water tank is used to hold water, and the water pump is used to extract the water stored in the water tank and spray it out through the nozzle.

[0024] In a possible design, the track is set up around the construction working surface, slope and road.

[0025] In one possible design, the control module includes a controller, a humidity sensor and a dust concentration sensor. The controller is electrically connected to the blasting module, the dynamic water mist module, the mobile sprinkler module, the humidity sensor and the dust concentration sensor, respectively. The humidity sensor is used to detect the air humidity in the construction area, and the dust concentration sensor is used to detect the dust concentration in the construction area.

[0026] In a possible design, multiple detection points are set up around the construction work surface, slope surface and road, each detection point is equipped with a humidity sensor and a dust concentration sensor, and a protective net is provided outside the humidity sensor and the dust concentration sensor.

[0027] In a second aspect, the present invention provides a dust suppression method based on the blasting dust suppression system, comprising the following steps:

[0028] S100: obtaining actual values ​​of air humidity and dust concentration through a control module; determining a working signal of at least the blasting module among the blasting module, the dynamic water mist module, and the mobile sprinkler module by comparing the actual values ​​with preset values; and transmitting the working signal to a corresponding functional module;

[0029] S200: The blasting module receives a working signal and performs a blasting operation;

[0030] S300: The dynamic water mist module receives the working signal and adjusts the spraying frequency and the water mist particle size; the mobile sprinkler module receives the working signal and adjusts the sprinkler route and sprinkler duration;

[0031] Among them, in S300, the dynamic water mist module can operate before, during and after blasting, and the mobile sprinkler module operates after blasting.

[0032] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0033] The dynamic water mist module cooperates with the mobile water sprinkler module to achieve dust reduction operations and control the dust raised and spread caused by blasting operations. The control module is used to control the above functional modules to achieve unmanned intelligent blasting and dust reduction, reduce manual participation, improve intelligence, and achieve automated operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0035] Figure 1 The figure is a schematic diagram of the structure of a blasting dust suppression system.

[0036] Figure 2 This is a connection diagram between the blasting module and the control module.

[0037] Figure 3 This is a structural diagram of the dynamic water mist module.

[0038] Figure 4 This is a structural diagram of the mobile sprinkler module.

[0039] Marks and corresponding parts names in the attached drawings:

[0040] 1. Blasting module; 11. In-hole blasting assembly; 12. Surface detonation assembly; 2. Dynamic water mist module; 21. Control unit; 22. Water pipe; 23. Nozzle; 221. Main pipe; 222. Branch pipe; 3. Mobile sprinkler module; 31. Track; 32. Water tank; 33. Nozzle; 4. Control module; 41. Controller; 42. Humidity sensor; 43. Dust concentration sensor. DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0042] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0043] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0045] Example:

[0046] like Figure 1-Figure 4 As shown, a blasting dust suppression system includes a blasting module 1, a dynamic water mist module 2, a mobile watering module 3 and a control module 4;

[0047] The blasting module 1 is electrically connected to the control module 4 and is used for blasting operations in the blasting area;

[0048] The dynamic water mist module 2 is arranged outside the blasting area and is electrically connected to the control module 4. Accordingly, the dynamic water mist module 2 is used to generate water mist for dust suppression;

[0049] The mobile watering module 3 is movably arranged outside the blasting area and is electrically connected to the control module 4. Accordingly, the mobile watering module 3 is used to move to different areas and spray water to adjacent areas;

[0050] The control module 4 is electrically connected to and controls the blasting module 1 , the dynamic water mist module 2 and the mobile sprinkler module 3 .

[0051] In the blasting dust suppression system, the dynamic water mist module 2 is used to continuously spray and achieve dust suppression. For specific areas, the mobile sprinkler module 3 is used to achieve spray dust suppression. The dynamic water mist module 2 and the mobile sprinkler module 3 cooperate with each other to effectively control the lifting and diffusion of blasting dust, thereby reducing dust pollution at the blasting site.

[0052] Specifically, the blasting module 1 implements blasting operations, causing the soil and rock media or structures to be compressed, deformed, destroyed, loosened and thrown, thereby achieving operations on the target. The dynamic water mist module 2 cooperates with the mobile sprinkler module 3 to achieve dust reduction operations, controlling the dust raised and spread caused by the blasting operations. The control module 4 is used to control the above functional modules to achieve unmanned intelligent blasting and dust reduction, reduce manual participation, improve intelligence, and achieve automated operations.

[0053] It is worth noting that the dynamic water mist module 2 reduces the dust concentration in the air by generating water mist, which has the following advantages: 1. After the water mist is sprayed out, it forms pressurized water mist, forming an isolation layer, thereby blocking the diffusion of blasting dust in the atmosphere; 2. The water mist particles are small and uniform, which increases the contact area with the dust in the air and improves the dust suppression effect; 3. The water mist consumes less water, which helps to save resources and reduce operating costs.

[0054] Based on this, before the blasting operation, the dynamic water mist module 2 is started in advance to form an isolation layer in advance; during the blasting operation, the dynamic water mist module 2 keeps operating, the water mist combines with the blasting dust to achieve dust reduction, and can replenish water mist for the isolation layer to prevent the dust from spreading to farther areas; after the blasting operation, the dynamic water mist module 2 can keep running to keep the area moist and prevent secondary dust.

[0055] That is, the dynamic water mist module 2 can operate before, during and after blasting, covering the entire dust reduction process, which not only suppresses the spread of blasting dust, but also prevents the generation of secondary dust.

[0056] The mobile sprinkler module 3 can be deployed at any suitable location on the construction site. On the one hand, it cooperates with the dynamic water mist module 2 to achieve dust reduction in the entire process of blasting operations. On the other hand, it can also be used for dust reduction in other operations to achieve dust reduction operations in the entire construction process, expanding the protection range. In addition, the deployment of the mobile sprinkler module 3 is more flexible, adaptable to different construction environments, and has a wider range of use and good practicality.

[0057] In a possible implementation, the blasting module 1 includes an in-hole blasting assembly 11 and a surface detonation assembly 12, the in-hole blasting assembly 11 is installed in the blasting hole, the surface detonation assembly 12 is installed on the surface of the blasting area, and the blasting hole and the surface of the blasting area are respectively provided with a plurality of flameproof water bags;

[0058] Correspondingly, the control module 4 is electrically connected to the in-hole blasting assembly 11 and the surface detonating assembly 12 , respectively, so that the detonation time of the in-hole blasting assembly 11 is earlier than the detonation time of the surface detonating assembly 12 .

[0059] Based on the above design scheme, the in-hole blasting assembly 11 is installed in the blasting hole and blasting is carried out, and the explosion-proof water bag in the blasting hole is detonated at the same time; the surface detonating assembly 12 is installed on the surface of the blasting area, and the explosion-proof water bag on the surface is detonated at the same time.

[0060] Furthermore, the in-hole blasting assembly 11 and the surface detonation assembly 12 cooperate with each other to achieve blasting operations, and the two blast different areas, which helps to ensure the blasting effect. The flameproof water bag can isolate the spread of dust, reduce dust pollution, help reduce the spread of dust caused by blasting operations, and also reduce the operating pressure of the dynamic water mist module 2 and the mobile sprinkler module 3.

[0061] The control module 4 is not only used to control the detonation of the in-hole blasting assembly 11 and the surface detonation assembly 12, but also to control the detonation order of the two to reduce the diffusion of the blasting dust. Specifically, since the dust on the surface of the blasting area will be earlier than the blasting dust in the blasting hole, the two sets of detonation assemblies are time-adjusted based on the blasting control signal, that is, the detonation time of the surface detonation assembly 12 is earlier than the detonation time of the in-hole detonation assembly. After the blasting, the dust diffusion can be monitored by sensors set in the hole and on the ground, and the results are fed back to the control module 4 to optimize the timing parameters of subsequent blasting. At the same time, the control module 4 also optimizes the parameters of the dynamic water mist module 2 and the mobile sprinkler module 3 respectively to achieve a better dust reduction effect.

[0062] It is easy to understand that the in-hole blasting assembly 11 and the surface detonation assembly 12 can be any suitable existing components.

[0063] In a possible implementation, the detonation timing difference Δt=the detonation time in the hole T H -Surface detonation time T S , that is, Δt=T H -T S , and Δt~300-500ms.

[0064] Based on the above design scheme, the blasting module 1 makes the detonation time in the hole and on the surface precisely matched through the detonation timing difference, which can effectively control the lifting and diffusion of blasting dust and reduce dust pollution at the blasting site. For the specific detonation timing difference, the operator can obtain an initial value based on experience or calculation. During the blasting operation, the control module 4 is optimized and the optimized value is obtained. The subsequent detonation timing difference is based on the optimized value. It is easy to understand that after multiple optimizations, the latest optimized value is used as the subsequent detonation timing difference.

[0065] In a possible implementation, the dynamic water mist module 2 includes a control unit 21, a water pipe 22 and a nozzle 23. The control unit 21 is arranged on the water pipe 22 and electrically connected to the control module 4. The water pipe 22 has a water inlet end connected to the municipal water network and a water spraying end arranged in the blasting area. There are several nozzles 23 and they are respectively arranged at the water spraying ends of the water pipe 22, and the spray holes on the nozzles 23 are all micron-level.

[0066] Based on the above design, the control unit 21 selects any suitable existing components, with a wide range of choices, and improves adaptability to different construction environments. The water pipe 22 is set in the blasting area. Based on the specific environment of the blasting area, the operator designs a specific laying plan of the water pipe 22 according to experience or calculation. Similarly, several nozzles 23 are selected and arranged at appropriate positions.

[0067] For the water pipe 22, any suitable existing model can be selected, and the selection range is wide. For the nozzle 23, its spray hole is micron-level, ensuring that the water mist particles are small and uniform, increasing the contact area with the dust in the air, and improving the dust suppression effect.

[0068] Specifically, before the blasting operation, the dynamic water mist module 2 receives a signal from the control module 4 through the control unit 21 to adjust the spraying frequency and the water mist particle size. During and after the blasting operation, the dynamic water mist module 2 timely adjusts the spraying frequency and the water mist particle size according to the signal from the control module 4 to achieve a better dust reduction effect.

[0069] In a possible implementation, the water pipe 22 includes a main pipe 221 and branch pipes 222. The main pipe 221 is provided with at least one and connected to the municipal water network, and a plurality of branch pipes 222 are provided and arranged around the blasting area. Accordingly, each main pipe 221 is connected to a plurality of branch pipes 222, and each branch pipe 222 is connected to a plurality of nozzles 23.

[0070] Based on the above design, the municipal water network is connected to ensure sufficient water supply and prevent water shortage. Based on the specific environment of the blasting area, any appropriate number of main pipes 221 and branch pipes 222 are selected to ensure the expected dust reduction effect.

[0071] In one possible implementation, the mobile sprinkler module 3 includes a track 31, a water tank 32, a water pump and a nozzle 33. The track 31 is laid in the blasting area and its surroundings, the water tank 32 is slidably set on the track 31, the water pump is set on the water tank 32, and the output end of the water pump is connected to the nozzle 33. Accordingly, the water tank 32 is used to hold water, and the water pump is used to extract the water stored in the water tank 32 and spray it through the nozzle 33.

[0072] Based on the above design scheme, for the construction site, in addition to the large amount of smoke and dust generated by blasting operations, slag pushing, excavation and loading and other links are other major sources of dust generation. For these construction dusts, dust reduction operations are achieved by moving the watering module 3. Specifically, the track 31 is laid in an area prone to dust generation, and the water tank 32 is connected to any suitable driving device and slides along the track 31. When the water tank 32 moves to a suitable area, the water pump is started and water is sprayed through the nozzle 33 to achieve dust reduction operations. In this way, the dust reduction needs of different areas can be met to achieve full-area and full-process blasting dust reduction.

[0073] Furthermore, the control module 4 is electrically connected to the mobile sprinkler module 3, so as to timely adjust the sprinkler route and sprinkler volume of the mobile sprinkler module 3. During construction, the mobile sprinkler module 3 can be started at any time during the construction process, and perform timed or continuous sprinkler according to the needs of different operation stages. In the process of pushing slag and excavating, the sprinkler module regularly sprinkles water on the accumulated rock slag, earthwork and slope surface to prevent a large amount of dust caused by mechanical operations. Before and after transportation, the mobile sprinkler assembly can sprinkle water along the construction road to reduce dust generated during transportation.

[0074] In a possible implementation, the track 31 is arranged on the working surface, slope and road periphery of the construction. Based on the above design, the track 31 can also be laid at any suitable position in the construction environment to ensure dust reduction protection in the whole area.

[0075] In a possible implementation, the control module 4 includes a controller 41, a humidity sensor 42 and a dust concentration sensor 43. The controller 41 is electrically connected to the blasting module 1, the dynamic water mist module 2, the mobile sprinkler module 3, the humidity sensor 42 and the dust concentration sensor 43 respectively. The humidity sensor 42 is used to detect the air humidity in the construction area, and the dust concentration sensor 43 is used to detect the dust concentration in the construction area.

[0076] Based on the above design, the controller 41 selects any suitable existing components, with a wide range of choices, and improves adaptability to different construction environments. The humidity sensor 42 is used to monitor the air humidity of the construction environment, and the dust concentration sensor 43 is used to monitor the dust concentration of the construction environment. The data of the two are uploaded to the controller 41, which processes and analyzes the data and makes judgments based on the changes in dust concentration in different areas. Specifically:

[0077] When it is detected that the dust concentration in a certain area exceeds the predetermined standard, the controller 41 sends a signal to adjust the spraying frequency and / or the water mist particle size of the dynamic water mist module 2 to quickly reduce the dust concentration in the area. If necessary, the mobile sprinkler module 3 adjusts the moving route and moves to the area to sprinkle water and reduce dust; and the amount of water sprinkled by the mobile sprinkler module 3 can be flexibly adjusted to ensure the effect of sprinkling water and reducing dust. When the dust concentration falls back to a safe range, the controller 41 will automatically reduce the working frequency of the dynamic water mist module 2 and / or the mobile sprinkler module 3 or stop the operation to save water resources and energy.

[0078] In addition, the controller 41 can also transmit signals to the blasting module 1 to optimize the detonation timing difference of the blasting module 1 and control the blasting dust to a certain extent.

[0079] In a possible implementation, a plurality of detection points are provided around the construction work surface, slope surface and road, each detection point is provided with a humidity sensor 42 and a dust concentration sensor 43, and a protective net is provided outside the humidity sensor 42 and the dust concentration sensor 43.

[0080] Based on the above design, multiple detection points are used to cover the entire construction area, achieving full-area monitoring to achieve dust reduction in the entire area. In addition, since blasting operations may generate flying rocks, the sensors are protected by protective nets to increase their service life.

[0081] This embodiment introduces a dust suppression method based on the blasting dust suppression system, and the dust suppression method includes the following steps:

[0082] S100: obtaining actual values ​​of air humidity and dust concentration through the control module 4; determining the working signal of at least the blasting module 1 among the blasting module 1, the dynamic water mist module 2 and the mobile sprinkler module 3 by comparing the actual values ​​with the preset values; transmitting the working signal to the corresponding functional module;

[0083] S200: Blasting module 1 receives a working signal and performs a blasting operation;

[0084] S300: The dynamic water mist module 2 receives the working signal and adjusts the spraying frequency and the water mist particle size; the mobile watering module 3 receives the working signal and adjusts the watering route and the watering duration;

[0085] Among them, in S300, the dynamic water mist module 2 can be operated before, during and after the blasting, and the mobile sprinkler module 3 can be operated after the blasting.

[0086] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blasting dust suppression system, characterized in that: It comprises a blasting module (1), a dynamic water mist module (2), a mobile water spraying module (3) and a control module (4); The blasting module (1) is electrically connected to the control module (4) and is used for blasting operations in a blasting area; The dynamic water mist module (2) is arranged outside the blasting area and is electrically connected to the control module (4); accordingly, the dynamic water mist module (2) is used to generate water mist for dust suppression; The mobile watering module (3) is movably arranged outside the blasting area and is electrically connected to the control module (4). Accordingly, the mobile watering module (3) is used to move to different areas and spray water to adjacent areas. The control module (4) is electrically connected to and controls the blasting module (1), the dynamic water mist module (2) and the mobile water spray module (3).

2. The blasting dust suppression system according to claim 1, characterized in that: The blasting module (1) comprises an in-hole blasting assembly (11) and a surface detonation assembly (12), wherein the in-hole blasting assembly (11) is installed in the blasting hole, and the surface detonation assembly (12) is installed on the surface of the blasting area, and the blasting hole and the surface of the blasting area are respectively provided with a plurality of flameproof water bags; Correspondingly, the control module (4) is electrically connected to the in-hole blasting assembly (11) and the surface detonation assembly (12) respectively, so that the detonation time of the in-hole blasting assembly (11) is earlier than the detonation time of the surface detonation assembly (12).

3. The blasting dust suppression system according to claim 2, characterized in that: Detonation timing difference Δt = detonation time in hole T H -Surface detonation time T S , that is, Δt=T H -T S , and Δt~300-500ms.

4. The blasting dust suppression system according to any one of claims 1 to 3, characterized in that: The dynamic water mist module (2) comprises a control unit (21), a water pipe (22) and a nozzle (23); the control unit (21) is arranged on the water pipe (22) and is electrically connected to the control module (4); the water pipe (22) has a water inlet end connected to a municipal water network and a water spray end arranged in a blasting area; a plurality of nozzles (23) are respectively arranged at the water spray ends of the water pipe (22); and the spray holes on the nozzles (23) are all micrometer-level.

5. The blasting dust suppression system according to claim 4, characterized in that: The water pipe (22) comprises a main pipe (221) and branch pipes (222). The main pipe (221) is provided with at least one and is connected to the municipal water network. A plurality of branch pipes (222) are provided and are arranged around the blasting area. Accordingly, each main pipe (221) is connected to a plurality of branch pipes (222), and each branch pipe (222) is connected to a plurality of nozzles (23).

6. The blasting dust suppression system according to claim 5, characterized in that: The mobile watering module (3) comprises a track (31), a water tank (32), a water pump and a nozzle (33), wherein the track (31) is laid in and around the blasting area, the water tank (32) is slidably arranged on the track (31), the water pump is arranged on the water tank (32), and the output end of the water pump is connected to the nozzle (33), and accordingly, the water tank (32) is used to hold water, and the water pump is used to extract the water stored in the water tank (32) and spray the water through the nozzle (33).

7. The blasting dust suppression system according to claim 6, characterized in that: The track (31) is arranged on the working surface, slope surface and road periphery during construction.

8. The blasting dust suppression system according to claim 6 or 7, characterized in that: The control module (4) comprises a controller (41), a humidity sensor (42) and a dust concentration sensor (43); the controller (41) is electrically connected to the blasting module (1), the dynamic water mist module (2), the mobile watering module (3), the humidity sensor (42) and the dust concentration sensor (43); the humidity sensor (42) is used to detect the air humidity in the construction area; and the dust concentration sensor (43) is used to detect the dust concentration in the construction area.

9. The blasting dust suppression system according to claim 8, characterized in that: A plurality of detection points are arranged around the construction work surface, slope surface and road, each detection point is provided with a humidity sensor (42) and a dust concentration sensor (43), and a protective net is arranged outside the humidity sensor (42) and the dust concentration sensor (43).

10. A dust suppression method based on the blasting dust suppression system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S100: obtaining actual values ​​of air humidity and dust concentration through the control module (4); determining a working signal of at least the blasting module (1) among the blasting module (1), the dynamic water mist module (2) and the mobile watering module (3) by comparing the actual values ​​with preset values; and transmitting the working signal to the corresponding functional module; S200: the blasting module (1) receives a working signal and performs a blasting operation; S300: The dynamic water mist module (2) receives the working signal and adjusts the spraying frequency and the water mist particle size; the mobile watering module (3) receives the working signal and adjusts the watering route and watering duration; Among them, in S300, the dynamic water mist module (2) can be operated before, during and after the blasting, and the mobile sprinkler module (3) is operated after the blasting.

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