Ultrasonic atomization intelligent precise dust falling method and equipment

Abstract

The invention discloses an ultrasonic atomization intelligent precise dust falling method and equipment, and relates to the technical field of dust treatment. The dust concentration monitoring device is used for analyzing and judging the concentration condition of dust diffused in each ring layer position in the dust area in real time, the steering mechanism is used for driving the two-fluid ultrasonic atomization nozzle to carry out dust falling on the dust area, and the total dust concentration condition is judged and analyzed according to the dust falling area right facing the dust falling area in real time; meanwhile, according to the rotating angle generated by the two-fluid ultrasonic atomization nozzles driven by the steering mechanism, the mutual interference intensity of the dust falling areas of the two-fluid ultrasonic atomization nozzles on the two sides is judged, the real-time spraying dust falling power of the two-fluid ultrasonic atomization nozzles is correspondingly regulated and controlled, dust falling of the coal mine production working face is efficiently completed, and the dust falling efficiency is improved. Meanwhile, prepared water resources can be efficiently utilized, so that the actual production operation cost is reduced, the personal safety of personnel on the coal mine production working face is guaranteed, and coal mine dust safety accidents are completely eradicated.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment, and in particular to an ultrasonic atomization intelligent precise dust reduction method and equipment. Background Art

[0002] During coal mining, a large amount of dust is generated in the underground working face. For example, the original dust production of any process in cutting (dropping) coal, moving racks, and placing coal reaches or exceeds 4800mg / m 3 , some places even up to 8000mg / m 3 When the dust generated by each process is gradually mixed and diffused into the entire working surface space and distributed evenly, the dust concentration inside the space is between 2600 and 3300 mg / m 3 Even if dust removal measures are taken, the dust concentration in the air of most workplaces is still 500mg / m 3 The above is far beyond the national standard (the time-weighted average permissible concentration of total dust and respirable dust in the workplace stipulated in the Coal Mine Safety Regulations is 4 mg / m 3 , 2.5mg / m 3 .

[0003] Dust is the number one cause of various respiratory diseases and even coal mine production accidents among coal miners. Eliminating dust hazards, reducing the occurrence of occupational diseases among coal miners, and preventing coal dust explosion accidents have become urgent tasks for coal mine safety production.

[0004] The existing method of eliminating dust from coal mine production is to directly use a two-fluid ultrasonic atomization device to atomize and reduce dust in the dust area. However, in this direct atomization and dust reduction process, the loss of water and electricity is often not considered. Faced with some deep coal seams, long-distance operations and other scenarios, it is difficult to distribute large amounts of water, and the large amount of water lost in dust reduction is also difficult to recycle, resulting in an increase in the actual cost of production operations.

[0005] In summary, how to efficiently complete dust reduction on the production working face of coal mines, while also being able to more efficiently utilize the allocated water resources, reduce actual production operation costs, ensure the personal safety of personnel on the production working face of coal mines, and prevent the occurrence of coal mine dust safety accidents has become an urgent problem to be solved. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an ultrasonic atomization intelligent and precise dust reduction method and equipment, which can not only efficiently complete the dust reduction of the coal mine production working face, but also can more efficiently utilize the equipped water resources, thereby reducing the actual production operation cost, ensuring the personal safety of personnel on the coal mine production working face, and preventing the occurrence of coal mine dust safety accidents.

[0007] The present invention is achieved through the following technical solutions:

[0008] The present invention provides an ultrasonic atomization intelligent precise dust reduction equipment, comprising a GPS module arranged at the location of a dust source, forming a dust area which continuously diffuses dust outward with the dust source as the center, and a dust concentration monitoring device is arranged at the location of the dust area.

[0009] Dust concentration monitoring device: including a radial mounting frame pointing to the dust source, the radial mounting frame is provided with a plurality of vertical airflow channels distributed along the radial direction of the dust area, the upper side of the radial mounting frame is provided with a main air pipe connected to all vertical airflow channels, the side end of the radial mounting frame is provided with an airflow device connected to the main air pipe, and each vertical airflow channel is provided with a photoelectric dust concentration monitoring module for monitoring the dust concentration in the vertical airflow channel. The periphery of the dust area is provided with a two-fluid ultrasonic atomization device located on both sides of the dust area, and the two-fluid ultrasonic atomization device is provided with a two-fluid ultrasonic atomization nozzle and a steering mechanism for driving the two-fluid ultrasonic atomization nozzle to rotate. The dust concentration monitoring device and the two-fluid ultrasonic atomization device are connected to the main controller through an electrical signal line.

[0010] As a preferred technical solution of the dust reduction equipment in the present invention: the dust concentration monitoring device is located above the dust area, and the spacing distances between the vertical airflow channels on the radial mounting frame are the same.

[0011] As a preferred technical solution for the dust reduction equipment in the present invention: the initial spraying positions of the two-fluid ultrasonic atomizing nozzles on both sides of the dust area are directly opposite to the dust source, and the dust source and the two initial positions of the two-fluid ultrasonic atomizing nozzles are in a collinear line.

[0012] As a preferred technical solution for the dust reduction equipment in the present invention: the main controller is equipped with a position coding module, and the position coding information in the position coding module independently corresponds to multiple photoelectric dust concentration monitoring modules of the dust concentration monitoring device one by one.

[0013] As a preferred technical solution for the dust reduction equipment in the present invention: the steering mechanism is equipped with a servo motor for driving the two-fluid ultrasonic atomizing nozzle to rotate, the servo motor is equipped with an angle encoding module, and the angle encoding module is connected to the main controller through an electrical signal transmission line.

[0014] As a preferred technical solution for the dust reduction equipment in the present invention: taking the line between the two-fluid ultrasonic atomizing nozzle and the dust source as a reference: the steering mechanism drives the two-fluid ultrasonic atomizing nozzle to rotate at an angle of (-90°, 90°).

[0015] The present invention provides an ultrasonic atomization intelligent and precise dust reduction method, which includes the following contents:

[0016] S1. Determine the center of the dust source based on the construction site.

[0017] S2. According to the center position of the dust source, adjust the position of the dust concentration monitoring device in the dust area, and the distance parameters between the multiple vertical airflow channels of the radial mounting frame and the dust source are: {M 1 、M 2 、M 3 , ..., M n}.

[0018] S3. Adjust the position between the two-fluid ultrasonic atomization nozzle of the two-fluid ultrasonic atomization device and the dust area, and set the distance relationship L between the two-fluid ultrasonic atomization nozzle and the dust source.

[0019] S4. Construction begins at the work site, and the dust source spreads dust outward.

[0020] S5. The airflow device of the dust concentration monitoring device is started, and the airflow at each position of the dust area rises into the vertical airflow channel. The dust concentrations monitored by the photoelectric dust concentration monitoring module at each position are as follows: 1 , C 2 , C 3 , ..., C n}.

[0021] S6. The steering mechanism adjusts the steering of the two-fluid ultrasonic atomizing nozzle, with the line between the two two-fluid ultrasonic atomizing nozzles as the reference line, and the angle between one of the two-fluid ultrasonic atomizing nozzles and the reference line is β 1 , the angle between another two-fluid ultrasonic atomizing nozzle and the reference line is β2, β1=-β2, β=|β1|=|-β2|.

[0022] S7. Main controller analyzes and calculates the angle coefficient λ 1 =A·sinβ+δ,0 <A≤0.5,δ=0.5。

[0023] S8. According to the distance parameters {M between multiple vertical airflow channels and dust sources 1 、M 2 、M 3 , ..., M n}The circular area formed by {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n )}, and the angle β generated in real time by the steering mechanism driving the two-fluid ultrasonic atomizing nozzle to rotate, the control system analyzes the spray path of any two-fluid ultrasonic atomizing nozzle and the circular area {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n)} The intersection positions of the boundary lines {x 1 、x 2 、x 3 , ..., x m}, obtain the dust concentration at the intersection position, fit the dust concentration change curve F(x) according to the dust concentration parameters at each intersection position, and calculate the dust concentration integral:

[0024] S9. Real-time power P of any two-fluid ultrasonic atomizing nozzle 实时 =λ 1 ·P 初始 +P 补偿 Among them, P 初始 A power parameter of the two-fluid ultrasonic atomizing nozzle preset by the main controller, P 补偿 is the atomization dust reduction intensity compensation power, P 补偿 ∝Dust concentration integral T.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention determines the dust source and dust area of ​​the working face in advance, configures a dust concentration monitoring device in the dust area, uses the dust concentration monitoring device to analyze and judge the real-time diffused dust concentration of each circle position in the dust area, and uses a steering mechanism to drive a two-fluid ultrasonic atomizing nozzle to reduce dust in the dust area. When the two-fluid ultrasonic atomizing nozzle reduces dust in the dust area, it judges and analyzes the total dust concentration of the dust reduction area facing it in real time, and at the same time, according to the rotation angle generated by the steering mechanism driving the two-fluid ultrasonic atomizing nozzle, the mutual interference intensity of the dust reduction areas of the two-fluid ultrasonic atomizing nozzles on both sides is judged, and the real-time spray dust reduction power of the two-fluid ultrasonic atomizing nozzle is correspondingly adjusted, which not only efficiently completes the dust reduction of the coal mine production working face, but also can more efficiently utilize the equipped water resources, thereby reducing the actual production operation cost, ensuring the personal safety of the personnel on the coal mine production working face, and preventing the occurrence of coal mine dust safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of the ultrasonic atomization dust reduction equipment in the present invention.

[0028] Figure 2 It is a schematic diagram of the ultrasonic atomization dust reduction equipment in the present invention when performing dust reduction.

[0029] Figure 3 It is a schematic diagram of the structure of the dust concentration monitoring device in the present invention.

[0030] Figure 4 Schematic diagram of the changing relationship between the angle coefficient λ1 and the angle β in the present invention.

[0031] Figure 5 It is a schematic diagram of the relationship between the atomization spray and the dust concentration at each position point in the dust area in the present invention.

[0032] Among them: 1-dust source; 2-GPS module; 3-dust concentration monitoring device, 301-radial mounting frame, 302-vertical air flow channel, 303-photoelectric dust monitoring module, 304-main air pipe, 305-air flow device; 4-two-fluid ultrasonic atomization device; 5-steering mechanism; 6-two-fluid ultrasonic atomization nozzle; 7-dust area; 8-main controller. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] Embodiment 1: The present invention designs an intelligent and precise dust reduction equipment that dynamically controls the degree of atomization based on monitoring of dust concentration. The specific structure is as follows:

[0035] See also Figure 1 , Figure 2 At the location of the dust source 1, a GPS module 2 is installed. During operation, a dust area 7 is formed with the dust source 1 as the center, and dust continuously diffuses outward. A dust concentration monitoring device 3 is arranged at the location of the dust area 7. The dust concentration monitoring device 3 is located above the dust area 7.

[0036] At least two two-fluid ultrasonic atomization devices 4 are arranged outside the dust area 7 , and the two two-fluid ultrasonic atomization devices 4 are located at two sides of the dust area 7 .

[0037] The two-fluid ultrasonic atomization device 4 is equipped with a steering mechanism 5 and a two-fluid ultrasonic atomization nozzle 6. The steering mechanism 5 drives the two-fluid ultrasonic atomization nozzle 6 to rotate: the steering mechanism 5 is equipped with a servo motor, the servo motor drives the two-fluid ultrasonic atomization nozzle 6 to rotate, and the servo motor is equipped with an angle encoding module, and the angle encoding module is connected to the main controller 8 through an electrical signal transmission line.

[0038] Among them, the connecting line between the two-fluid ultrasonic atomizing nozzle 6 and the dust source 1 is used as the reference: the steering mechanism 5 drives the two-fluid ultrasonic atomizing nozzle 6 to rotate in the angle range between -90° and 90°. Theoretically, the rotation angle of the two-fluid ultrasonic atomizing nozzle 6 relative to the initial position does not need to reach -90° and 90°.

[0039] The two-fluid ultrasonic atomizing nozzles 6 on both sides of the dust area 7 are located at the initial spraying position and are directly opposite to the dust source 1. When the dust source 1 and the two two-fluid ultrasonic atomizing nozzles 6 are at the initial position, the three are in a collinear state.

[0040] The main controller 8 is independently connected to the dust concentration monitoring device 3 and the two-fluid ultrasonic atomization device 4 through an electrical signal line.

[0041] Combination Figure 3 The dust concentration monitoring device 3 includes a radial mounting frame 301, a vertical airflow channel 302, a photoelectric dust concentration monitoring module 303, a main air pipe 304, and an airflow device 305. The radial mounting frame 301 points directly to the dust source 1. Along the radial direction of the dust area 7, a plurality of distributed vertical airflow channels 302 are opened on the radial mounting frame 301, and the spacing distances between the vertical airflow channels 302 on the radial mounting frame 301 are the same.

[0042] The main air pipe 304 is located on the upper side of the radial mounting frame 301, and the main air pipe 304 is connected to all vertical air flow channels 302. The air flow device 305 is located at the side end of the radial mounting frame 301, and the air flow device 305 is connected to the main air pipe 304. Each vertical air flow channel 302 is equipped with a photoelectric dust concentration monitoring module 303, and the photoelectric dust concentration monitoring module 303 is used to monitor the dust concentration in the vertical air flow channel 302.

[0043] The main controller 8 is equipped with a position coding module. For example, the position coding information in the position coding module is {W 1 , W 2 , W 3 , ..., W n}, the positions of the multiple photoelectric dust concentration monitoring modules 303 of the dust concentration monitoring device 3 are {S 1 , S 2 , S 3 ,...,S n}, there is a one-to-one independent correspondence between the two: (W 1 ~S 1 ), (W 2 ~S 2 ), (W 3 ~S 3 ),...,(W n ~S n ).

[0044] Embodiment 2: The present invention designs an ultrasonic atomization dust reduction method based on the above-mentioned dynamic intelligent precision dust reduction equipment, and the specific contents are as follows:

[0045] The first step is to determine the center position of the dust source 1 according to the construction work point and configure the GPS module 2.

[0046] Step 2: According to the central position of the dust source 1, adjust the position of the dust concentration monitoring device 3 in the dust area 7. The distance parameters between the multiple vertical air flow channels 302 of the radial mounting frame 301 and the dust source 1 are successively: {M 1 、M 2 、M 3 、...、M n}.

[0047] Step 3: Adjust the position between the two-fluid ultrasonic atomization nozzle 6 of the two-fluid ultrasonic atomization device 4 and the dust area 7, and set the distance relationship L between the two-fluid ultrasonic atomization nozzle 6 and the dust source 1;

[0048] Step 4: Construction starts at the operation point, and the dust source 1 diffuses dust outward.

[0049] Step 5: The air flow device 305 of the dust concentration monitoring device 3 is started. The air flow at each position in the dust area 7 rises into the vertical air flow channels 302, and the dust concentrations monitored by the optoelectronic dust concentration monitoring modules 303 at each position are successively: {C 1 、C 2 、C 3 、...、C n}.

[0050] Step 6: The steering mechanism 5 adjusts the steering of the two-fluid ultrasonic atomization nozzle 6. Taking the connection line between the two two-fluid ultrasonic atomization nozzles 6 as the reference line, the included angle between one two-fluid ultrasonic atomization nozzle 6 and the reference line is β 1 , and the included angle between the other two-fluid ultrasonic atomization nozzle 6 and the reference line is β2, β1 = -β2, β = |β1| = |-β2|.

[0051] Further analyze and calculate the angle coefficient λ 1 = A·sinβ + δ, 0 < A ≤ 0.5, δ = 0.5, as Figure 4 shown, the variation range of the angle coefficient λ 1 is [0, 1).

[0052] Step 7: According to the distance parameters {M 1 、M 2 、M 3 、...、M n} formed by the multiple vertical air flow channels 302 and the dust source 1, the circular area {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n)}, and the steering mechanism 5 drives the two-fluid ultrasonic atomizing nozzle 6 to rotate in real time to generate an angle β, the control system analyzes the injection path of any two-fluid ultrasonic atomizing nozzle 6 and the circular area {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n )} The intersection positions of the boundary lines {x 1 、x 2 、x 3 , ..., x m}, obtain the dust concentration at the intersection position, according to the dust concentration parameters at each intersection position, combined with Figure 5 For example, the dust concentration monitored by the photoelectric dust concentration monitoring module 303 in step 5 is 1 , C 2 , C 3 , ..., C n} as an example, fitting the dust concentration change curve F(x) and calculating the dust concentration integral:

[0053] Step 8: The real-time power P of any two-fluid ultrasonic atomizing nozzle 6 实时 =λ 1 ·P 初始 +P 补偿 Among them, P 初始 is a power parameter of the two-fluid ultrasonic atomizing nozzle 6 preset by the main controller 8. 补偿 This parameter is used to compensate the power of atomized dust reduction intensity. The significance of this parameter is to dynamically adjust the dust reduction intensity according to the total amount of dust reduction required in real time on the spray dust reduction path.

[0054] In addition, P 补偿 ∝ Dust concentration integral T, wherein, in the actual spray dust reduction process of the two-fluid ultrasonic atomizing nozzle 6, when the spray areas of the two-fluid ultrasonic atomizing nozzle 6 on both sides are close to each other, that is, when they are close to the dust source 1 area, generally speaking, P 补偿 The parameter of P increases gradually. This is because the length of the area where the two-fluid ultrasonic atomizing nozzle 6 sprays increases, and the dust concentration increases as it approaches the inner periphery of the dust area 7. The dust concentration integral T increases significantly, resulting in P 补偿 However, the spray areas of the two-fluid ultrasonic atomizing nozzles 6 on both sides are close to each other, which leads to a decrease in angle β and an angle coefficient λ. 1 This is also to avoid too strong crossover when the spray areas of the two-fluid ultrasonic atomizing nozzle 6 are close to each other, which is not conducive to energy-saving design. 补偿 The power design ensures the atomization and dust reduction effect.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic atomization intelligent and precise dust reduction equipment, Features: It comprises a GPS module (2) arranged at the location of a dust source (1), a dust area (7) which continuously diffuses dust outwards is formed with the dust source (1) as the center, and a dust concentration monitoring device (3) is arranged at the location of the dust area (7); The dust concentration monitoring device (3) comprises a radial mounting frame (301) pointing toward the dust source (1), the radial mounting frame (301) being provided with a plurality of vertical airflow channels (302) distributed along the radial direction of the dust region (7), the upper side of the radial mounting frame (301) being provided with a main air pipe (304) communicating with all the vertical airflow channels (302), the side end of the radial mounting frame (301) being provided with an airflow device (305) connected with the main air pipe (304), and each vertical airflow channel (302) being provided with a photoelectric dust concentration monitoring module (303) for monitoring the dust concentration in the vertical airflow channel (302); The outer periphery of the dust area (7) is provided with a two-fluid ultrasonic atomization device (4) located on both sides of the dust area (7), and the two-fluid ultrasonic atomization device (4) is provided with a two-fluid ultrasonic atomization nozzle (6) and a steering mechanism (5) for driving the two-fluid ultrasonic atomization nozzle (6) to rotate; The dust concentration monitoring device (3) and the two-fluid ultrasonic atomization device (4) are connected to the main controller (8) via an electrical signal line.

2. According to claim 1, an ultrasonic atomization intelligent precision dust reduction equipment, Features: The dust concentration monitoring device (3) is located above the dust area (7), and the spacing distances between the vertical airflow channels (302) on the radial mounting frame (301) are the same.

3. According to claim 1, an ultrasonic atomization intelligent precision dust reduction equipment, Features: The initial spraying positions of the two-fluid ultrasonic atomizing nozzles (6) on both sides of the dust area (7) are directly opposite to the dust source (1), and the dust source (1) and the two initial spraying positions of the two-fluid ultrasonic atomizing nozzles (6) are collinear.

4. According to claim 1, an ultrasonic atomization intelligent precision dust reduction equipment, Features: The main controller (8) is equipped with a position coding module, and the position coding information in the position coding module independently corresponds one by one to a plurality of photoelectric dust concentration monitoring modules (303) of the dust concentration monitoring device (3).

5. The ultrasonic atomization intelligent precision dust reduction equipment according to claim 1, Features: The steering mechanism (5) is equipped with a servo motor for driving the two-fluid ultrasonic atomizing nozzle (6) to rotate. The servo motor is equipped with an angle encoding module. The angle encoding module is connected to the main controller (8) via an electrical signal transmission line.

6. The ultrasonic atomization intelligent precision dust reduction equipment according to claim 1, Features: Taking the line between the two-fluid ultrasonic atomizing nozzle (6) and the dust source (1) as a reference: the angle at which the two-fluid ultrasonic atomizing nozzle (6) is driven by the steering mechanism (5) to rotate is (-90°, 90°).

7. An ultrasonic atomization intelligent and precise dust reduction method, It is characterized in that The method according to any one of claims 1 to 6 comprises the following contents: S1. Determine the center location of the dust source (1) based on the construction site; S2. According to the center position of the dust source (1), the position of the dust concentration monitoring device (3) in the dust area (7) is adjusted, and the distance parameters between the multiple vertical airflow channels (302) of the radial mounting frame (301) and the dust source (1) are as follows: {M 1 、M 2 、M 3 , ..., M n }; S3. Adjust the position between the two-fluid ultrasonic atomizing nozzle (6) of the two-fluid ultrasonic atomizing device (4) and the dust area (7), and set the distance relationship L between the two-fluid ultrasonic atomizing nozzle (6) and the dust source (1); S4. Construction begins at the work site, and the dust source (1) spreads dust outward; S5. The airflow device (305) of the dust concentration monitoring device (3) is started, and the airflow at each position of the dust area (7) rises and enters the vertical airflow channel (302). The dust concentrations monitored by the photoelectric dust concentration monitoring module (303) at each position are as follows: {C 1 , C 2 , C 3 , ..., C n }; S6. The steering mechanism (5) performs steering adjustment on the two-fluid ultrasonic atomizing nozzle (6), with the line between the two two-fluid ultrasonic atomizing nozzles (6) as the reference line, and the angle between one of the two-fluid ultrasonic atomizing nozzles (6) and the reference line is β 1 , the angle between another two-fluid ultrasonic atomizing nozzle (6) and the reference line is β2, β1 = -β2, β = |β1| = |-β2|; S7. Main controller (8) analyzes and calculates the angle coefficient λ 1 =A·sinβ+δ,0 <A≤0.5,δ=0.5; S8. According to the distance parameter {M between the plurality of vertical airflow channels (302) and the dust source (1) 1 、M 2 、M 3 , ..., M n }The circular area formed by {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n )}, and the steering mechanism (5) drives the two-fluid ultrasonic atomizing nozzle (6) to rotate to generate an angle β in real time, and the control system analyzes the spray path of any two-fluid ultrasonic atomizing nozzle (6) and the circular area {F(M 1 )、F(M 2 )、F(M 3 )、...、F(M n )} The intersection positions of the boundary lines {x 1 、x 2 、x 3 , ..., x m }, obtain the dust concentration at the intersection position, fit the dust concentration change curve F(x) according to the dust concentration parameters at each intersection position, and calculate the dust concentration integral: S9. Real-time power P of any two-fluid ultrasonic atomizing nozzle (6) 实时 =λ 1 ·P 初始 +P 补偿 ; Among them, P 初始 A power parameter of a two-fluid ultrasonic atomizing nozzle (6) preset for a main controller (8); Among them, P 补偿 is the atomization dust reduction intensity compensation power, P 补偿 ∝Dust concentration integral T.

Images