Mine blasting dust suppression system and dust suppression method thereof

Abstract

The present application belongs to the technical field of mine dust suppression, and particularly relates to a mine blasting dust suppression system and a dust suppression method thereof, wherein the mine blasting dust suppression system comprises: a plurality of dust suppression vehicles and a control terminal; the control terminal is in communication connection with the plurality of dust suppression vehicles respectively; the control terminal is configured to obtain a dust raising predicted height and a predicted concentration of a current required blasting area according to a dust suppression management database, and send the predicted height and the predicted concentration to the corresponding dust suppression vehicle; and the dust suppression vehicle performs advance dust suppression according to the received predicted height and predicted concentration. By constructing the dust suppression management database, and obtaining the dust raising predicted height and the predicted concentration of the current required blasting area according to the dust suppression management database, the dust suppression vehicle adjusts the direction and angle of the water spray gun in advance according to the predicted height and the predicted concentration, and controls the dust suppression vehicle to spray water in advance before blasting, thereby improving the dust suppression effect and the use efficiency of the dust suppression vehicle.

Description

Technical Field

[0001] This invention belongs to the field of dust suppression technology in mining, specifically relating to water curtain dust suppression, and particularly to a dust suppression system and method for blasting in mining. Background Technology

[0002] When blasting operations are carried out in the mining area of ​​an open-pit mine, water mist generated by a water spraying device is generally used to cover the blasting area in a short time. Existing dust suppression vehicles are equipped with energy storage devices and water tanks. Compressed air generated or stored by the energy storage devices is used to drive the water in the water tank to spray out.

[0003] The direction and angle of the water spray nozzles of the dust suppression trucks in the relevant technologies are not adjustable, and water can only be sprayed in a fixed direction. The dust suppression effect of the dust suppression trucks relies entirely on human experience, and cannot accurately and effectively suppress the dust in the blasting area, resulting in a low dust suppression effect and an inability to effectively block dust.

[0004] Therefore, how to improve the dust suppression effect of dust suppression vehicles is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one dust suppression system for mine blasting and a dust suppression method thereof.

[0007] In a first aspect, embodiments of this disclosure provide a dust suppression system for mine blasting, comprising:

[0008] Multiple dust suppression vehicles and control terminals;

[0009] The control terminal is communicatively connected to multiple dust suppression vehicles.

[0010] The control terminal is configured to receive the current blasting information and obtain the predicted dust height and concentration of the currently required blasting area from the dust suppression management database, and then send the predicted height and concentration to the corresponding dust suppression vehicle.

[0011] The dust suppression vehicle performs advance dust suppression based on the received predicted height and concentration.

[0012] In one optional implementation, the dust suppression vehicle includes:

[0013] Walking mechanism;

[0014] A container tank is positioned above the traveling mechanism;

[0015] A rotary spraying mechanism is disposed above the container tank and communicates with the container tank;

[0016] A control module, electrically connected to the rotary injection mechanism, is adapted to adjust the injection direction and injection height of the rotary injection mechanism based on the received predicted height and predicted concentration.

[0017] In one optional implementation, the dust suppression vehicle further includes:

[0018] A dust detection sensor is mounted on the top of the container.

[0019] The dust detection sensor is electrically connected to the control module and is suitable for detecting the actual dust concentration in multiple directions within the corresponding area after the blast.

[0020] The control module is also configured to adjust the spray direction and spray height of the rotary spray mechanism based on the actual dust concentration received from multiple directions.

[0021] In one optional implementation, the step of the control module adjusting the spray direction and spray height of the rotary spray mechanism based on the actual dust concentration received from multiple directions includes:

[0022] The spray direction is adjusted based on the actual dust concentration in multiple directions;

[0023] The spray height is adjusted based on the actual dust concentration in multiple directions;

[0024] The adjusted data is sent to the control terminal and stored in the dust suppression management database for later use.

[0025] In one optional implementation, the step of the control module adjusting the spray direction based on the actual dust concentration in multiple directions includes:

[0026] Receive the actual dust concentration from multiple directions;

[0027] Filter out the direction of the dust center where the actual dust concentration is the highest;

[0028] The rotary spray mechanism is controlled to rotate so that the spray direction coincides with the direction of the dust center.

[0029] In one optional implementation, the step of the control module adjusting the spray height based on the actual dust concentration in multiple directions includes:

[0030] Compare the actual maximum dust concentration with the preset concentration;

[0031] If the actual dust concentration is greater than the first preset concentration, the rotary spray mechanism is controlled to adjust the spray angle upward at a preset speed until the actual dust concentration is less than or equal to the first preset concentration.

[0032] If the actual dust concentration is less than the second preset concentration, the rotary spray mechanism is controlled to adjust the spray angle downward at a preset speed until the actual dust concentration is greater than or equal to the second preset concentration.

[0033] The first preset concentration is greater than the second preset concentration, and the first preset concentration and the second preset concentration are set according to the predicted concentration.

[0034] In one optional implementation, the dust suppression vehicle further includes:

[0035] A dust suppressant sprayer is disposed on top of the container tank, and the container tank is further provided with a receiving cavity for storing the dust suppressant.

[0036] The control module is also configured to obtain the escape area beyond the spray range of the rotary spraying mechanism based on the actual dust concentration received from multiple directions, and control the dust suppressant sprayer to spray dust suppressant toward the escape area.

[0037] Furthermore, the height of the dust suppressant sprayed by the dust suppressant sprayer is higher than the height of the liquid sprayed by the rotary spraying mechanism.

[0038] In one optional implementation, the control module obtains the escape area where the dust exceeds the spray range of the rotary spray mechanism based on the actual dust concentration received from multiple directions, i.e.:

[0039] Obtain the spray range of the rotary spray mechanism;

[0040] The dust generation range is obtained based on the actual dust concentration in multiple directions;

[0041] The area where dust is generated beyond the spray range is the escape zone.

[0042] Secondly, this disclosure also provides a dust suppression method for the mine blasting dust suppression system as described above, the method comprising:

[0043] Build a dust suppression management database;

[0044] Obtain the area of ​​the desired blasting zone and the amount of explosives;

[0045] Based on the area of ​​the blasting zone, obtain the required number of dust suppression vehicles and the location of each dust suppression vehicle from the dust suppression management database;

[0046] Based on the area and the amount of explosives, the predicted height and concentration of dust in the dust suppression area of ​​each dust suppression vehicle are obtained from the dust suppression management database;

[0047] Send the location, predicted height, and predicted concentration of the dust suppression vehicle to the corresponding dust suppression vehicle;

[0048] Dust suppression is carried out in advance based on the received predicted height and concentration.

[0049] In one optional implementation, the step of dust suppression based on the received predicted height and predicted concentration is as follows:

[0050] The spray direction and spray height of the rotary spray mechanism are adjusted based on the received predicted height and predicted concentration.

[0051] In one optional implementation, after the step of suppressing dust based on the received predicted height and predicted concentration, the dust suppression method of the mine blasting dust suppression system further includes:

[0052] Control the dust suppressant sprayer to spray dust suppressant towards the escape area;

[0053] The escape zone is the part of the dust generation area that extends beyond the spray range.

[0054] The beneficial effects of this invention are that the dust suppression system and method for mine blasting, by constructing a dust suppression management database and obtaining the predicted height and concentration of dust in the required blasting area based on the dust suppression management database, allow the dust suppression vehicle to adjust the direction and angle of the water spray gun in advance according to the predicted height and concentration, and control the dust suppression vehicle to spray water in advance before blasting, thereby improving the dust suppression effect and the utilization efficiency of the dust suppression vehicle.

[0055] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0056] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0057] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0058] Figure 1A schematic diagram of a mine blasting dust suppression system provided in an embodiment of this disclosure;

[0059] Figure 2 This is a schematic diagram of the structure of the dust suppression vehicle provided in the embodiments of this disclosure;

[0060] Figure 3 A top view of a dust suppression vehicle provided in an embodiment of this disclosure;

[0061] Figure 4 This is a schematic diagram of the structure after the gas refueling vehicle and the dust suppression vehicle are connected, as provided in an embodiment of this disclosure;

[0062] Figure 5 This is a schematic diagram of the state of the dust suppression vehicle during dust suppression provided in the embodiments of this disclosure;

[0063] Figure 6 A flowchart of a dust suppression method for a mine blasting dust suppression system provided in this embodiment of the present disclosure.

[0064] In the diagram: 100, dust suppression vehicle; 110, walking mechanism; 120, container tank; 130, rotary spraying mechanism; 131, horizontal rotating seat; 132, water spray gun; 133, direction adjustment motor; 134, height adjustment motor; 135, horizontal rotating shaft; 140, dust detection sensor; 150, dust suppressant sprayer; 200, gas refueling vehicle. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0067] The dust suppression trucks in the relevant technologies suppress dust by using fixed points and angles. However, after the blasting is completed, the dust suppression trucks are activated to move the vehicles, which causes a large amount of smoke and dust to spread. As a result, the dust suppression effect is very poor, and more dust suppression trucks need to be dispatched for dust suppression.

[0068] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0069] Please see Figure 1At least one embodiment provides a dust suppression system for mine blasting, including: multiple dust suppression vehicles 100 and a control terminal; the control terminal is communicatively connected to the multiple dust suppression vehicles 100; the control terminal is configured to receive current blasting information and obtain the predicted dust height and predicted concentration of the currently required blasting area from a dust suppression management database, and send the predicted height and predicted concentration to the corresponding dust suppression vehicle 100; the dust suppression vehicle 100 performs pre-blasting dust suppression based on the received predicted height and predicted concentration. By constructing a dust suppression management database and obtaining the predicted dust height and predicted concentration of the currently required blasting area from the dust suppression management database, the dust suppression vehicle 100 adjusts the direction and angle of the water spray gun 132 in advance according to the predicted height and predicted concentration, and controls the dust suppression vehicle to spray water in advance before blasting, thereby improving the dust suppression effect and increasing the utilization efficiency of the dust suppression vehicle 100.

[0070] It should be noted that the current blasting information includes: blasting area and explosive charge. The dust suppression management database is constructed based on the blasting data stored in previous blasting operations. Specifically, it stores information such as blasting area, explosive charge, dust height, and dust concentration. By retrieving data, the corresponding dust height and dust concentration are retrieved from the dust suppression management database based on the current blasting information, and used as the corresponding predicted height and predicted concentration.

[0071] Please see Figure 2 In some embodiments, the dust suppression vehicle 100 includes: a walking mechanism 110; a container tank 120 disposed above the walking mechanism 110; a rotary spraying mechanism 130 disposed above the container tank 120 and communicating with the container tank 120; and a control module electrically connected to the rotary spraying mechanism 130 and adapted to adjust the spraying direction and spraying height of the rotary spraying mechanism 130 according to the received predicted height and predicted concentration.

[0072] Please continue reading. Figure 2 The dust suppression vehicle 100 further includes a dust detection sensor 140, which is disposed on the top of the container tank 120; the dust detection sensor 140 is electrically connected to the control module and is adapted to detect the actual dust concentration in multiple directions in the corresponding area after the explosion; the control module is also configured to adjust the spray direction and spray height of the rotary spray mechanism 130 according to the received actual dust concentration in multiple directions.

[0073] Specifically, the steps by which the control module adjusts the spray direction and spray height of the rotary spray mechanism 130 based on the actual dust concentration received from multiple directions include:

[0074] S1: Adjust the spray direction based on the actual dust concentration in multiple directions.

[0075] S2: Adjust the spray height based on the actual dust concentration in multiple directions.

[0076] S3: Send the adjusted data to the control terminal and store it in the dust suppression management database for later use.

[0077] Due to wind direction and speed, the center point of dust will change. By detecting the actual dust concentration, the spray direction and spray height of the water spray gun 132 can be adjusted accordingly to maximize the suppression of dust and improve the blocking efficiency.

[0078] Please see Figure 5 Meanwhile, since some dust will exceed the current spray range of the water spray gun 132 after dust suppression, the concentration in the unsuppressed areas will be higher than the concentration within the current spray range of the water spray gun 132. In this case, the dust suppression effect is improved by re-determining the center point of the dust and adjusting the spray height and direction of the water spray gun 132. The adjustment of the spray direction is as follows: Figure 5 As shown in F1.

[0079] Specifically, the steps of the control module to adjust the spray direction based on the actual dust concentration in multiple directions include: receiving the actual dust concentration in multiple directions; selecting the dust center direction where the maximum actual dust concentration is located; and controlling the rotating spray mechanism 130 to rotate so that the spray direction coincides with the dust center direction.

[0080] The step of the control module adjusting the spray height based on the actual dust concentration in multiple directions includes: comparing the maximum actual dust concentration with a preset concentration; if the actual dust concentration is greater than a first preset concentration, controlling the rotary spray mechanism 130 to adjust the spray angle upward at a preset speed until the actual dust concentration is less than or equal to the first preset concentration; if the actual dust concentration is less than a second preset concentration, controlling the rotary spray mechanism 130 to adjust the spray angle downward at a preset speed until the actual dust concentration is greater than or equal to the second preset concentration; wherein the first preset concentration is greater than the second preset concentration, and the first preset concentration and the second preset concentration are set based on the predicted concentration.

[0081] Specifically, the first preset concentration is 1.3 times the predicted concentration, and the second predicted concentration is 0.7 times the predicted concentration.

[0082] Please continue reading. Figure 2 and Figure 3In some embodiments, the rotary spraying mechanism 130 includes: a horizontal rotating seat 131 rotatably disposed on the top of the container tank 120; a water spray gun 132 rotatably disposed on the horizontal rotating seat 131 via a horizontal rotating shaft 135; a direction adjusting motor 133 for driving the horizontal rotating seat 131 to rotate in the horizontal direction, thereby adjusting the spraying direction of the water spray gun 132; and a height adjusting motor 134 for driving the horizontal rotating shaft 135 to rotate, thereby adjusting the spraying height of the water spray gun 132.

[0083] Please see Figure 4 In some embodiments, the mine blasting dust suppression system also includes an air filling vehicle 200, which fills the container tank 120 of the dust suppression vehicle 100 with gas.

[0084] Please continue reading. Figure 1 and Figure 2 The dust suppression vehicle 100 also includes a dust suppressant sprayer 150, which is disposed on the top of the container tank 120, and the container tank 120 is also provided with a receiving cavity for storing the dust suppressant.

[0085] The control module is also configured to determine the escape zone beyond the spray range of the rotary spray mechanism 130 based on the actual dust concentration received from multiple directions, and to control the dust suppressant sprayer 150 to spray dust suppressant towards the escape zone. The escape zone is as follows: Figure 5 As shown, the path of the dust suppressant sprayed by the dust suppressant injector 150 is as follows: Figure 5 As shown.

[0086] In use, first control the rotating spray mechanism 130 to spray out the dust suppressant, and then spray the dust suppressant towards the escape area through the dust suppressant sprayer, so as to quickly absorb the dust in the escape area. At the same time, by adjusting the spray direction and angle of the water spray gun 132, the dust suppression in the escape area is further accelerated.

[0087] Because the height of the escaped dust is higher than the height of the previous dust center, the height of the dust suppressant sprayed by the dust suppressant injector 150 is higher than the height of the liquid sprayed by the rotary spraying mechanism 130. After the dust suppressant absorbs the dust, it falls into the area with liquid, thereby filling the adsorption pores on the surface of the dust suppressant with liquid, thus preventing the dust in the dust suppressant from causing secondary dust generation after landing.

[0088] Please see Figure 6 At least one embodiment also provides a dust suppression method for a mine blasting dust suppression system as described above, the method comprising:

[0089] S110: Construct a dust suppression management database.

[0090] S120: Obtain the area of ​​the required blasting zone and the amount of explosives.

[0091] S130: Based on the area of ​​the blasting zone, obtain the required number of dust suppression vehicles 100 and the location of each dust suppression vehicle 100 from the dust suppression management database.

[0092] S140: Based on the area and the amount of explosives, obtain the predicted height and concentration of dust in the dust suppression area of ​​each dust suppression vehicle from the dust suppression management database.

[0093] S150: Send the location, predicted height, and predicted concentration of the dust suppression vehicle 100 to the corresponding dust suppression vehicle 100.

[0094] S160: Dust suppression is performed based on the received predicted height and predicted concentration.

[0095] Step S160 involves adjusting the spray direction and spray height of the rotary spray mechanism 130 based on the received predicted height and predicted concentration.

[0096] In a preferred embodiment, after step S160, the dust suppression method of the mine blasting dust suppression system further includes:

[0097] S171: The dust detection sensor 140 on the dust suppression vehicle 100 detects the actual dust concentration in multiple directions in the corresponding area after the blast.

[0098] S172: Adjust the spray direction based on the actual dust concentration in multiple directions.

[0099] S173: Adjust the spray height based on the actual dust concentration in multiple directions.

[0100] Due to wind direction and speed, the center point of dust will change. By detecting the actual dust concentration, the spray direction and spray height of the water spray gun 132 can be adjusted accordingly to maximize the suppression of dust and improve the blocking efficiency.

[0101] Meanwhile, since some dust will exceed the current spray range of the water gun 132 after dust suppression, the concentration in the unsuppressed area will be higher than the concentration in the current spray range of the water gun 132. At this time, the dust suppression effect can be improved by re-determining the center point of the dust and adjusting the spray height and spray direction of the water gun 132.

[0102] Specifically, the steps of the control module to adjust the spray direction based on the actual dust concentration in multiple directions include: receiving the actual dust concentration in multiple directions; selecting the dust center direction where the maximum actual dust concentration is located; and controlling the rotating spray mechanism 130 to rotate so that the spray direction coincides with the dust center direction.

[0103] The step of the control module adjusting the spray height based on the actual dust concentration in multiple directions includes: comparing the maximum actual dust concentration with a preset concentration; if the actual dust concentration is greater than a first preset concentration, controlling the rotary spray mechanism 130 to adjust the spray angle upward at a preset speed until the actual dust concentration is less than or equal to the first preset concentration; if the actual dust concentration is less than a second preset concentration, controlling the rotary spray mechanism 130 to adjust the spray angle downward at a preset speed until the actual dust concentration is greater than or equal to the second preset concentration; wherein the first preset concentration is greater than the second preset concentration, and the first preset concentration and the second preset concentration are set based on the predicted concentration.

[0104] Specifically, the first preset concentration is 1.3 times the predicted concentration, and the second predicted concentration is 0.7 times the predicted concentration.

[0105] In a preferred embodiment, after the step of suppressing dust based on the received predicted height and predicted concentration, the dust suppression method of the mine blasting dust suppression system further includes: controlling the dust suppressant injector 150 to spray dust suppressant toward the escape area; wherein, the escape area is the part of the dust generation range that exceeds the spray range.

[0106] In use, first control the rotating spray mechanism 130 to spray out the dust suppressant, and then spray the dust suppressant towards the escape area through the dust suppressant sprayer, so as to quickly absorb the dust in the escape area. At the same time, by adjusting the spray direction and angle of the water spray gun 132, the dust suppression in the escape area is further accelerated.

[0107] This mine blasting dust suppression system and its dust suppression method improve the dust suppression effect and increase the utilization efficiency of the dust suppression vehicle 100 by constructing a dust suppression management database and obtaining the predicted height and concentration of dust in the required blasting area based on the dust suppression management database.

[0108] In summary, this invention provides a dust suppression system and method for mine blasting. The dust suppression system includes multiple dust suppression vehicles 100 and a control terminal. The control terminal is communicatively connected to each of the multiple dust suppression vehicles 100. The control terminal is configured to obtain the predicted dust height and concentration of the desired blasting area from a dust suppression management database and send the predicted height and concentration to the corresponding dust suppression vehicle 100. The dust suppression vehicle 100 performs dust suppression in advance based on the received predicted height and concentration. By constructing a dust suppression management database and obtaining the predicted dust height and concentration of the desired blasting area from the database, the dust suppression vehicle 100 adjusts the direction and angle of the water spray gun 132 in advance based on the predicted height and concentration, thereby improving the dust suppression effect and increasing the utilization efficiency of the dust suppression vehicle 100.

[0109] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A mine blasting dust suppression system, characterized in that, The system comprises: a plurality of dust suppression vehicles (100) and a control terminal; the control terminal is in communication connection with the plurality of dust suppression vehicles (100) respectively; the control terminal is configured to receive current blasting information and obtain the predicted height and concentration of dust in the current blasting area corresponding to the current blasting information from a dust suppression management database, and send the predicted height and concentration to the corresponding dust suppression vehicle (100); the dust suppression vehicle (100) performs dust suppression in advance according to the received predicted height and concentration; wherein the dust suppression management database stores the predicted height and concentration of dust corresponding to each blasting information; the dust suppression vehicle (100) comprises: a walking mechanism (110); a container tank (120) arranged above the walking mechanism (110); a rotating spraying mechanism (130) arranged above the container tank (120) and in communication with the container tank (120); a control module electrically connected with the rotating spraying mechanism (130) and adapted to adjust the spraying direction and height of the rotating spraying mechanism (130) according to the received predicted height and concentration; the dust suppression vehicle (100) further comprises: a dust detection sensor (140) arranged at the top of the container tank (120); the dust detection sensor (140) is electrically connected with the control module and is adapted to detect the actual concentration of dust in multiple directions in the corresponding area after blasting; the control module is further configured to adjust the spraying direction and height of the rotating spraying mechanism (130) according to the received actual concentration of dust in multiple directions; the dust suppression vehicle (100) further comprises: a dust suppressant sprayer (150) arranged at the top of the container tank (120), and the inside of the container tank (120) is further provided with a containing cavity for storing dust suppressant; the control module is further configured to obtain an escape area beyond the spraying range of the rotating spraying mechanism (130) according to the received actual concentration of dust in multiple directions, and control the dust suppressant sprayer (150) to spray dust suppressant towards the escape area; and the height of the dust suppressant sprayed by the dust suppressant sprayer (150) is higher than the height of the liquid sprayed by the rotating spraying mechanism (130); after the dust suppressant absorbs the dust, it falls into the area with liquid, so that the adsorption holes on the surface of the dust suppressant are filled with liquid, thereby avoiding secondary dust raising caused by the dust in the dust suppressant falling to the ground.

2. The mine blasting dust suppression system according to claim 1, wherein the control module adjusts the spraying direction and height of the rotating spraying mechanism (130) according to the received actual concentration of dust in multiple directions, i.e.: adjusting the spraying direction according to the actual concentration of dust in multiple directions; adjusting the spraying height according to the actual concentration of dust in multiple directions; sending the adjusted data to the control terminal and storing it in the dust suppression management database for subsequent use.

3. The mine blasting dust suppression system according to claim 2, wherein The step of adjusting the spraying direction by the control module according to the actual dust concentrations in multiple directions comprises: receiving actual dust concentrations in multiple directions; selecting a dust center direction where the maximum actual dust concentration is located; controlling the rotating spraying mechanism (130) to rotate so that the spraying direction coincides with the dust center direction.

4. The mine blasting dust suppression system of claim 2, wherein The step of adjusting the spraying height by the control module according to the actual dust concentrations in multiple directions comprises: comparing the maximum actual dust concentration with a preset concentration; if the actual dust concentration is greater than a first preset concentration, controlling the rotating spraying mechanism (130) to adjust the spraying angle upward at a preset speed until the actual dust concentration is less than or equal to the first preset concentration; if the actual dust concentration is less than a second preset concentration, controlling the rotating spraying mechanism (130) to adjust the spraying angle downward at a preset speed until the actual dust concentration is greater than or equal to the second preset concentration; wherein the first preset concentration is greater than the second preset concentration, and the first preset concentration and the second preset concentration are set according to the predicted concentration.

5. The mine blasting dust suppression system of claim 1, wherein The control module obtains an escape area where dust exceeds the spraying range of the rotating spraying mechanism according to the received actual dust concentrations in multiple directions, that is: obtaining the spraying range of the rotating spraying mechanism; obtaining the dust generation range according to the actual dust concentrations in multiple directions; the part of the dust generation range that exceeds the spraying range is the escape area.

6. A dust suppression method of a mine blasting dust suppression system as claimed in claim 1, characterized by, The method comprises: constructing a dust suppression management database; obtaining the area of the required blasting area and the amount of explosive; obtaining the number of required dust suppression vehicles (100) and the position of each dust suppression vehicle (100) from the dust suppression management database according to the area of the blasting area; obtaining the predicted height and predicted concentration of the fugitive dust in the dust suppression area of each dust suppression vehicle (100) from the dust suppression management database according to the area and the amount of explosive; sending the position, predicted height and predicted concentration of the dust suppression vehicle to the corresponding dust suppression vehicle (100); suppressing dust in advance according to the received predicted height and predicted concentration.

7. The dust suppression method of the mine blasting dust suppression system of claim 6, wherein The step of suppressing dust according to the received predicted height and predicted concentration, that is: adjusting the spraying direction and spraying height of the rotating spraying mechanism (130) according to the received predicted height and predicted concentration.

8. The dust suppression method of the mine blasting dust suppression system of claim 6, wherein After the step of suppressing dust according to the received predicted height and predicted concentration, the dust suppression method of the mine blasting dust suppression system further comprises: controlling the dust suppressant sprayer (150) to spray dust suppressant towards the escape area; wherein the escape area is the part of the dust generation range that exceeds the spraying range.

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