Intelligent control system and method for blasting dust of open pit coal mine

Abstract

The invention provides an open pit coal mine blasting dust intelligent control system and method.The control system comprises a spraying unit, a control unit and a detection unit, the spraying unit comprises a first spraying assembly and a second spraying assembly, the first spraying assembly comprises a first water storage part and a first spraying part, the first spraying part is connected with the first water storage part, and the second spraying part is connected with the second water storage part; the second spraying assembly is arranged on the side, away from the blasting area, of the first spraying assembly and comprises a second water storage part and a second spraying part, the second spraying part is connected with the second water storage part and comprises a plurality of second spraying heads, the second spraying heads are used for spraying spraying liquid towards the air, and the control unit is connected with the spraying unit. The control unit is used for controlling start and stop of the spraying unit, the detection unit is connected with the control unit, and the detection unit is used for detecting the dust concentration in air and transmitting the dust concentration to the control unit. The control system can effectively control and reduce dust pollution generated by blasting of the open pit coal mine, and the environment and the health of workers are protected.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine dust removal, and in particular to an intelligent control system and method for blasting dust in an open-pit coal mine. Background Art

[0002] Common methods for controlling dust in open-pit mine blasting include blasting process dust prevention technology, water pre-wetting blasted body dust reduction technology, pressure water dust reduction technology, explosion water mist technology, etc. Among the related technologies, since the directional throwing of rocks is achieved by adjusting the drilling angle, increasing the step height, increasing the charge amount, changing the charge properties and charge structure, compared with the traditional open-pit coal mine step loosening blasting, the throwing blasting dust produces more dust, moves in the throwing direction, has a longer retention time, a wider diffusion range, and is more difficult to control, resulting in the above-mentioned dust prevention technology The dust control effect is not ideal, or the process is complicated and the adaptability is poor. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention proposes an open-pit coal mine blasting dust intelligent control system and method, wherein the open-pit coal mine blasting dust intelligent control system has a good dust reduction effect, effectively controls and reduces the dust pollution generated by open-pit coal mine blasting, and protects the environment and workers' health.

[0004] The open-pit coal mine blasting dust intelligent control system according to the embodiment of the present invention comprises:

[0005] A spray unit, the spray unit comprises a first spray assembly and a second spray assembly, the first spray assembly comprises a first water storage member and a first spray member, the first spray member is connected to the first water storage member, and the first spray member is used to intermittently spray water masses toward the blasting area,

[0006] The second spray assembly is arranged on a side of the first spray assembly away from the blasting area, the second spray assembly comprises a second water storage member and a second spray member, the second spray member is connected to the second water storage member, and the second spray member comprises a plurality of second spray heads, the plurality of second spray heads are used to spray spray liquid into the air, so that the spray liquid can form a water curtain in the air;

[0007] A control unit, the control unit is connected to the spray unit, and the control unit is used to send a spray instruction to the spray unit to control the start and stop of the spray unit;

[0008] A detection unit, wherein the detection unit is connected to the control unit, and is used to detect the dust concentration in the air, and the detection unit is used to transmit the detected information to the control unit, so that the control unit can send a control signal to the spray unit according to the detected information.

[0009] The open-pit coal mine blasting dust intelligent control system of the embodiment of the present invention can use the spray unit to perform dust reduction in the blasting area twice. First, the first spray unit can be used to effectively disturb and suppress the dust generated in the blasting area, reduce the diffusion and suspension of the dust, and then the second spray unit can be used to enable multiple nozzles to spray spray liquid into the air to form a water curtain, which can capture and settle the dust particles diffused into the air, further improving the dust reduction effect.

[0010] In addition, the control unit and detection unit can also adjust the spraying frequency and intensity according to the real-time monitored dust concentration data to achieve precise dust reduction.

[0011] In some embodiments, the first spray assembly also includes a first water pump, a first accumulator, a first control valve and a first nozzle. The first water pump is connected to the first water storage member and the first accumulator to extract the spray liquid in the first water storage member and pressurize it using the first accumulator. The first control valve is connected to the first accumulator and the first nozzle. The first control valve is electrically connected to the control unit to receive a control signal transmitted by the control unit.

[0012] In some embodiments, the first spray assembly further includes a telescopic member, wherein the telescopic member is connected to the first nozzle, and the telescopic member is used to drive the first nozzle to move in an up-and-down direction.

[0013] In some embodiments, an extension direction of the first nozzle and an extension direction of the telescopic member form an included angle, and the first nozzle is rotatable around a direction orthogonal to the extension direction of the telescopic member.

[0014] In some embodiments, the first spray assembly further includes a rotating base having a rotating portion, and the telescopic member is connected to the rotating portion so that the rotating portion drives the telescopic member to rotate.

[0015] In some embodiments, the detection unit includes a concentration detector and a wind speed detector. The concentration detector is used to monitor the dust concentration in the blasting area in real time, and the wind speed detector is used to monitor the wind speed in the blasting area in real time.

[0016] In some embodiments, the second spraying member further includes a second water pump and a water spraying pipe, the second water pump is connected to the second water storage member and the water spraying pipe, and a plurality of the second nozzles are arranged at intervals along an extension direction of the water spraying pipe.

[0017] The open-pit coal mine blasting dust intelligent control method of the embodiment of the present invention is completed by using the open-pit coal mine blasting dust intelligent control system described in any one of the above embodiments, and includes the following steps:

[0018] S1. Real-time monitoring of dust concentration and wind speed in the blasting area;

[0019] S2. Analyze the monitored dust concentration and wind speed data;

[0020] S3. Controlling the spraying timing and spraying intensity of the first spraying assembly and the second spraying assembly according to the data analysis results;

[0021] S4, using the first spray assembly to launch non-continuous high-pressure water cannons toward the blasting area to disturb the dust;

[0022] S5. Use the second spray assembly to spray the diffused dust.

[0023] In some embodiments, in step S2, a dust concentration sensor and a wind speed sensor are used for monitoring.

[0024] In some embodiments, step S3 also includes sending a control signal to the first spray component and the second spray component through the control unit according to the data analysis results of the dust concentration and the wind speed to adjust the spraying timing and the spraying intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the use status of the open-pit coal mine blasting dust intelligent control system according to an embodiment of the present invention.

[0026] Figure 2 It is a partial structural schematic diagram of the first injection component of the open-pit coal mine blasting dust intelligent control system according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 100. Blasting area,

[0029] 1. First spray assembly, 11. Telescopic member, 12. First nozzle, 13. Rotating base,

[0030] 2. A second spray assembly, 21. A water spray pipe, 22. A second nozzle. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figure 1 and Figure 2 The open-pit coal mine blasting dust intelligent control system of the embodiment of the present invention includes: a spray unit, a control unit and a detection unit.

[0033] The spray unit includes a first spray component and a second spray component. The first spray component includes a first water storage component and a first injection component. The first injection component is connected to the first water storage component. The first injection component is used to intermittently spray water masses toward the blasting area. The second spray component is arranged on the side of the first spray component away from the blasting area. The second spray component includes a second water storage component and a second injection component. The second injection component is connected to the second water storage component, and the second injection component includes a plurality of second nozzles. The plurality of second nozzles are used to spray spray liquid toward the air so that the spray liquid can form a water curtain in the air.

[0034] It can be understood that the first injection member can extract the spray liquid in the first water storage member and pressurize the spray liquid so that the spray liquid can form a high-pressure liquid so as to be sprayed from the first injection member toward the blasting area, thereby disturbing the dust after the explosion in the blasting area, and also delaying the effect of dust diffusion.

[0035] The second spraying member can form a spray liquid barrier similar to a water curtain in the air (i.e., on the path of dust diffusion), further capturing and reducing the diffused dust, thereby ensuring the dust reduction effect.

[0036] The control unit is connected to the spray unit, and the control unit is used to issue a spray instruction to the spray unit to control the start and stop of the spray unit; the detection unit is connected to the control unit, and the detection unit is used to detect the dust concentration in the air, and the detection unit is used to transmit the detected information to the control unit so that the control unit can issue a control signal to the spray unit according to the detected information.

[0037] It is understandable that the detection unit can be used to monitor the environment of the blasting area in real time, such as the wind speed, wind direction and dust concentration in the blasting area. The detection unit transmits the detected real-time information to the control unit, and then uses the control unit to adjust the spray direction and spray flow of the spray component, so as to achieve the control of the spray dust reduction effect while ensuring the rational use of water resources and reducing the waste of water resources.

[0038] In other words, the open-pit coal mine blasting dust intelligent control system of the embodiment of the present invention can use the spray unit to carry out dust reduction in the blasting area twice. First, the first spray unit can be used to effectively disturb and suppress the dust generated in the blasting area, reduce the diffusion and suspension of the dust, and then the second spray unit can be used to enable multiple nozzles to spray spray liquid into the air to form a water curtain, which can capture and settle the dust particles diffused into the air, further improving the dust reduction effect.

[0039] In addition, the control unit and detection unit can also adjust the spraying frequency and intensity according to the real-time monitored dust concentration data to achieve precise dust reduction.

[0040] In some embodiments, the first spray assembly also includes a first water pump, a first accumulator, a first control valve and a first nozzle. The first water pump is connected to the first water storage member and the first accumulator to extract the spray liquid in the first water storage member and pressurize it using the first accumulator. The first control valve is connected to the first accumulator and the first nozzle. The first control valve is electrically connected to the control unit to receive a control signal transmitted by the control unit.

[0041] It is understandable that if Figure 1 and Figure 2 , connecting the first water storage member and the first accumulator, used to pump out the water in the water storage member and send it to the accumulator for pressurization. The first accumulator is used to store high-pressure water. When receiving a control instruction, it can quickly release the high-pressure water to enhance the spraying force. The first control valve is connected to the first accumulator and the first nozzle, and is used to control the spraying of high-pressure water. The first control valve is electrically connected to the control unit to receive the control signal transmitted by the control unit, so as to realize the control of the start and end of the spraying of the spray unit.

[0042] It should be noted that the first control valve may be a solenoid valve. The first control valve and the control unit may be connected in a wired or wireless manner.

[0043] Optionally, the first spray assembly further includes a telescopic member, which is connected to the first nozzle and is used to drive the first nozzle to move in the up and down direction. It is understandable that the telescopic member can be a cylinder, an oil cylinder, or other equipment with a linear telescopic function. The first nozzle is located at the top of the telescopic member, so that the telescopic member can adjust the height of the first nozzle according to the actual use environment, thereby achieving spraying and dust reduction of dust at different heights.

[0044] In some embodiments, the extension direction of the first nozzle is at an angle to the extension direction of the telescopic member, and the first nozzle is rotatable around the extension direction orthogonal to the telescopic member. It is understandable that the extension direction of the telescopic member is consistent with the up-down direction, and the first nozzle is arranged obliquely relative to the telescopic member. A driving member can be provided on the telescopic member, and the driving member can be a gear set driven by a motor, wherein the gear set is connected to the first nozzle, and the motor is started to drive the gear set to rotate so as to realize the rotation of the first nozzle.

[0045] In some embodiments, the first spray assembly further comprises a rotating base, the rotating base having a rotating part, the telescopic member being connected to the rotating part so that the rotating part drives the telescopic member to rotate. It is understandable that a driving motor is provided on the rotating base, the driving motor is connected to the rotating part, and is used to drive the rotating part to rotate, thereby driving the telescopic member to rotate.

[0046] That is, the driving member on the telescopic member can be used to rotate the first nozzle in a vertical plane, and the rotating base can be used to rotate the first nozzle in a horizontal plane, thereby ensuring the coverage angle of the first spraying member and improving the spraying effect.

[0047] In some embodiments, the detection unit includes a concentration detector and a wind speed detector. The concentration detector is used to monitor the dust concentration in the blasting area in real time, and the wind speed detector is used to monitor the wind speed in the blasting area in real time.

[0048] That is, the concentration detector includes a dust concentration sensor, a humidity sensor, etc., and the wind speed detector includes a wind speed sensor, etc. The detection unit can monitor the environment of the blasting area in real time, such as detecting the dust concentration, humidity, wind direction, wind speed, etc. in the air, thereby providing a decision basis for the control unit.

[0049] In some embodiments, the second spraying member further includes a second water pump and a water spraying pipe, the second water pump is connected to the second water storage member and the water spraying pipe, and a plurality of second nozzles are arranged at intervals along the extension direction of the water spraying pipe.

[0050] It is understandable that if Figure 1 and Figure 2 There may be multiple water spray pipes, and the multiple water spray pipes extend in the direction of the second water storage member. Multiple second nozzles are arranged at intervals along the water spray pipes to ensure that the spray liquid forms a uniform water curtain in the air, thereby achieving a wider dust reduction coverage.

[0051] Preferably, there are multiple second spray parts, and the multiple second spray parts are arranged at intervals along the circumference of the blasting zone. That is to say, based on the real-time monitoring and feedback of the environment of the blasting zone by the detection unit, the second spray assembly can effectively spray and reduce dust in a large area of ​​the blasting area in a short time, reduce dust diffusion, protect the environment and workers' health, and improve resource utilization efficiency.

[0052] The following describes an open-pit coal mine blasting dust intelligent control method according to an embodiment of the present invention.

[0053] The open-pit coal mine blasting dust intelligent control method of the embodiment of the present invention is completed by using any open-pit coal mine blasting dust intelligent control system in the above embodiments, and includes the following steps:

[0054] S1. Real-time monitoring of dust concentration and wind speed in the blasting area to understand the dust situation in the blasting area in real time.

[0055] S2. Analyze the monitored dust concentration and wind speed data. Optionally, a dust concentration sensor and a wind speed sensor may be used to monitor the dust concentration and wind speed to provide accurate dust concentration and wind speed data, providing a basis for subsequent analysis and control.

[0056] It should be noted that the real-time monitored data is transmitted to the control unit, which analyzes the data using algorithms or preset thresholds after receiving the sensor data. The analysis results include the trend of dust concentration, the stability and changes of wind speed, etc. Data analysis can help predict dust diffusion and sedimentation so that the spray unit can be started at the right time and under the right conditions.

[0057] S3. According to the data analysis results, the spraying timing and spraying intensity of the first spray component and the second spray component are controlled. And according to the data analysis results of the dust concentration and the wind speed, a control signal is sent to the first spray component and the second spray component through the control unit to adjust the spraying timing and spraying intensity.

[0058] That is, the control unit sends control signals to the first spray assembly and the second spray assembly according to the data analysis results. The signals may include parameters such as the time when spraying starts, the duration of spraying, and the intensity of spraying.

[0059] S4. Use the first spray assembly to fire a discontinuous high-pressure water cannon at the blasting area to disturb the dust. That is, the first spray assembly is equipped with a high-pressure water pump and a nozzle to generate a high-pressure water flow. According to the control signal, the first spray assembly fires a high-pressure water cannon at the blasting area at a specific time.

[0060] It is understood that high-pressure water cannons can effectively disturb and suppress dust, reduce dust suspension and diffusion. Discontinuous emission can avoid over-wetting while maintaining effective control of dust.

[0061] S5. Use the second spray assembly to spray the diffused dust, that is, the second spray assembly arranges multiple nozzles along the water spraying pipeline to form a water curtain. According to the control signal, the second spray assembly forms a water curtain in the air to spray the diffused dust.

[0062] It can be understood that water curtain spraying can capture and settle dust more widely and improve the dust reduction effect. Continuous water curtains can form an effective barrier to prevent dust from spreading outward.

[0063] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0068] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An open-pit coal mine blasting dust intelligent control system, characterized in that: include: A spray unit, the spray unit comprises a first spray assembly and a second spray assembly, the first spray assembly comprises a first water storage member and a first spray member, the first spray member is connected to the first water storage member, and the first spray member is used to intermittently spray water masses toward the blasting area, The second spray assembly is arranged on a side of the first spray assembly away from the blasting area, the second spray assembly comprises a second water storage member and a second spray member, the second spray member is connected to the second water storage member, and the second spray member comprises a plurality of second spray heads, the plurality of second spray heads are used to spray spray liquid into the air, so that the spray liquid can form a water curtain in the air; A control unit, the control unit is connected to the spray unit, and the control unit is used to send a spray instruction to the spray unit to control the start and stop of the spray unit; A detection unit, wherein the detection unit is connected to the control unit, and is used to detect the dust concentration in the air, and the detection unit is used to transmit the detected information to the control unit, so that the control unit can send a control signal to the spray unit according to the detected information.

2. The open-pit coal mine blasting dust intelligent control system according to claim 1 is characterized in that: The first spray assembly also includes a first water pump, a first accumulator, a first control valve and a first nozzle. The first water pump is connected to the first water storage member and the first accumulator to extract the spray liquid in the first water storage member and pressurize it using the first accumulator. The first control valve is connected to the first accumulator and the first nozzle. The first control valve is electrically connected to the control unit to receive a control signal transmitted by the control unit.

3. The open-pit coal mine blasting dust intelligent control system according to claim 2 is characterized in that: The first spray assembly further includes a telescopic member, which is connected to the first nozzle and is used to drive the first nozzle to move in an up-and-down direction.

4. The open-pit coal mine blasting dust intelligent control system according to claim 3 is characterized in that: An extension direction of the first nozzle and an extension direction of the telescopic member form an included angle, and the first nozzle is rotatable around a direction orthogonal to the extension direction of the telescopic member.

5. The open-pit coal mine blasting dust intelligent control system according to claim 4 is characterized in that: The first spray assembly further includes a rotating base having a rotating portion, and the telescopic member is connected to the rotating portion so that the rotating portion drives the telescopic member to rotate.

6. The open-pit coal mine blasting dust intelligent control system according to claim 5 is characterized in that: The detection unit includes a concentration detector and a wind speed detector. The concentration detector is used to monitor the dust concentration in the blasting area in real time, and the wind speed detector is used to monitor the wind speed in the blasting area in real time.

7. The open-pit coal mine blasting dust intelligent control system according to claim 1 is characterized in that: The second spraying member further includes a second water pump and a water spraying pipe, the second water pump is connected to the second water storage member and the water spraying pipe, and a plurality of the second nozzles are arranged at intervals along the extending direction of the water spraying pipe.

8. An open-pit coal mine blasting dust intelligent control method, the open-pit coal mine blasting dust intelligent control method is completed by using the open-pit coal mine blasting dust intelligent control system according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Real-time monitoring of dust concentration and wind speed in the blasting area; S2. Analyze the monitored dust concentration and wind speed data; S3. Controlling the spraying timing and spraying intensity of the first spraying assembly and the second spraying assembly according to the data analysis results; S4, using the first spray assembly to launch non-continuous high-pressure water cannons toward the blasting area to disturb the dust; S5. Use the second spray assembly to spray the diffused dust.

9. The open-pit coal mine blasting dust intelligent control method according to claim 8, characterized in that: In step S2, a dust concentration sensor and a wind speed sensor are used for monitoring.

10. The open-pit coal mine blasting dust intelligent control method according to claim 9, characterized in that: In step S3, it also includes sending a control signal to the first spray component and the second spray component through the control unit according to the data analysis results of the dust concentration and the wind speed, so as to adjust the spraying timing and the spraying intensity.

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