Fixed-point dust suppression device, dust suppression vehicle and control method of dust suppression vehicle

Abstract

The present invention relates to the field of dust suppression equipment, and discloses a fixed-point dust suppression device, a dust suppression vehicle, and a control method for the dust suppression vehicle. The fixed-point dust suppression device includes a slewing mechanism, a spray rod, a plurality of nozzles, and a plurality of adjustment mechanisms. The spray rod is horizontally arranged on the slewing mechanism and can rotate around the vertical axis under the drive of the slewing mechanism. The plurality of nozzles are arranged on the spray rod and are spaced along the length direction of the spray rod. Each nozzle is provided with an adjustment mechanism, and the adjustment mechanism is used to adjust the vertical width of the water outlet of the nozzle corresponding to it. The present invention greatly improves the proportion of the amount of dust suppression water sprayed by each nozzle in the required dust suppression area, reduces the overlapping part at the same time, improves the proportion of the amount of water for effective dust suppression, reduces the water consumption of the dust suppression vehicle during actual operation, and improves the dust suppression effect.

Description

Technical Field

[0001] The present invention belongs to the field of dust suppression equipment, and specifically relates to a fixed-point dust suppression device, a dust suppression vehicle applying the fixed-point dust suppression device, and a control method for the dust suppression vehicle. Background Art

[0002] In scenarios such as blasting operations and other engineering operations, relatively serious dust will be generated, that is, a large amount of dust is generated in the surrounding environment of the operation in a short time, causing relatively large pollution to the environment. Therefore, during blasting operations and other engineering operations, it is necessary to use a dust suppression vehicle to spray a large amount of water into the dust area to form a dust suppression area, and cover the dust area with the dust suppression area, so as to achieve the purpose and effect of dust suppression and alleviate the problem of environmental pollution caused by dust spreading outward.

[0003] In existing dust suppression vehicles, it usually includes an air compressor, a water storage tank, and multiple nozzles. The water outlet of the water storage tank is connected to the multiple nozzles. Compressed air is filled into the water storage tank by the air compressor. Under the action of a relatively large air pressure, the dust suppression water in the water storage tank is driven into the multiple nozzles, and a large amount of dust suppression water is sprayed out through the multiple nozzles to the required dust suppression area, so as to achieve the purpose of dust suppression.

[0004] However, since the spraying distances of each nozzle are the same and non-adjustable, the actual dust suppression area jointly formed by the operations of each nozzle is difficult to accurately cover the required dust suppression area, and the proportion of the amount of dust suppression water that can be sprayed into the required dust suppression area is relatively low. Moreover, as the amount of water in the water storage tank gradually decreases, the air pressure in the water storage tank also gradually decreases, resulting in a decrease in the spraying distance of each nozzle, and the range of the actual dust suppression area formed gradually shrinks, so that more dust suppression water is sprayed into the area outside the required dust suppression area, further reducing the proportion of the amount of dust suppression water sprayed into the required dust suppression area. In addition, the overlapping part of the actual spraying areas of each nozzle is relatively large, and the formed actual dust suppression area is relatively small, and the situation where the actual dust suppression area cannot cover the required dust suppression area often occurs; due to the above reasons, there is a problem that the existing dust suppression vehicle consumes a large amount of water but has a poor dust suppression effect. Summary of the Invention

[0005] Aiming at the above-mentioned deficiencies or defects in the prior art, the present invention provides a fixed-point dust suppression device, a dust suppression vehicle, and a control method for the dust suppression vehicle, aiming to solve the technical problem that the existing dust suppression vehicle consumes a large amount of water but has a poor dust suppression effect.

[0006] To achieve the above object, the present invention provides a fixed-point dust suppression device, including:

[0007] A slewing mechanism;

[0008] A spray boom, the spray boom is horizontally arranged on the slewing mechanism and can rotate around a vertical axis under the drive of the slewing mechanism;

[0009] A plurality of nozzles and a plurality of adjusting mechanisms, the plurality of nozzles are arranged on the spray bar and spaced along the length direction of the spray bar, and each nozzle is provided with one of the adjusting mechanisms, and the adjusting mechanism is used to adjust the vertical width of the water outlet of the corresponding nozzle.

[0010] Optionally, the fixed-point dust suppression device further includes a controller, and the controller is respectively communicatively connected to the slewing mechanism and the plurality of adjusting mechanisms, and is used to control the slewing mechanism to drive the spray bar to rotate within the angular range corresponding to the target dust suppression area according to the set target dust suppression area, and during the rotation of the spray bar, control each of the adjusting mechanisms to respectively and real-time adjust the vertical width of the water outlet of each nozzle, so that the actual dust suppression area formed by the spraying areas of each nozzle can cover the target dust suppression area.

[0011] Optionally, the adjusting mechanism includes:

[0012] An adjusting plate, which is arranged inside the nozzle, and both lateral sides of the adjusting plate abut against the two side walls of the nozzle respectively, the end of the adjusting plate in the longitudinal direction is hinged to the water inlet of the nozzle, and the front end of the adjusting plate in the longitudinal direction extends to the water outlet of the nozzle; and

[0013] A driving oil cylinder, which is arranged outside the nozzle and the output shaft is in transmission connection with the front end of the adjusting plate through a transmission member, and the telescopic movement of the output shaft of the driving oil cylinder can drive the adjusting plate to rotate, so that the front end of the adjusting plate moves between the upper edge and the lower edge of the water outlet of the nozzle.

[0014] Optionally, the driving oil cylinder is arranged on the outer top surface of the nozzle, and the transmission member includes:

[0015] A fixed pulley, which is arranged on the outer top surface of the nozzle and above the water outlet of the nozzle; and

[0016] A transmission rope, one end of which is connected to the output shaft of the driving oil cylinder, and the other end is wound around the fixed pulley and connected to the front end of the adjusting plate.

[0017] Optionally, the fixed-point dust suppression device further includes a plurality of displacement sensors, and each driving oil cylinder is provided with one of the displacement sensors, and the displacement sensor is used to detect the extension stroke of the output shaft of the corresponding driving oil cylinder.

[0018] The present invention also provides a dust suppression vehicle, which includes a water storage tank, an air compressor and the above-mentioned fixed-point dust suppression device, the air compressor is used to input compressed gas into the water storage tank, and the water outlet of the water storage tank is connected to the water inlets of the plurality of nozzles of the fixed-point dust suppression device.

[0019] Optionally, the dust suppression vehicle further includes a pressure sensor disposed in the water storage tank and used to detect the air pressure in the water storage tank.

[0020] The present invention also provides a control method based on the above dust suppression vehicle, and the control method includes:

[0021] Input parameter information of a target dust suppression area and set the target dust suppression area;

[0022] Determine the corresponding operation angle range of the spray bar according to the target dust suppression area, and control the slewing mechanism to drive the spray bar to rotate and operate within the operation angle range;

[0023] Divide the target dust suppression area into multiple sub-areas, and respectively assign the multiple sub-areas to the multiple nozzles one by one;

[0024] During the rotation operation of the spray bar, control the water output of each nozzle so that each nozzle can spray its corresponding sub-area.

[0025] Optionally, during the rotation operation of the spray bar, controlling the water output of each nozzle so that each nozzle can spray its corresponding sub-area includes:

[0026] During the rotation operation of the spray bar, real-time obtain the real-time air pressure in the water storage tank, and real-time determine the required spraying distance of each nozzle. According to the real-time air pressure in the water storage tank and the required spraying distance of each nozzle, control each adjusting mechanism to respectively and real-time adjust the vertical width of the water outlet of the corresponding nozzle.

[0027] Optionally, the multiple sub-areas are respectively circular arc areas with different distances from the rotation center of the spray bar, and the required spraying distance of each nozzle is determined according to the following formula:

[0028] L′ = L * [1 - cos(α + β)] / {R - L * [1 - cos(α + β)]}, where L′ is the required spraying distance parameter of the nozzle, L is the distance parameter between the outer arc of the sub-area corresponding to the nozzle and the rotation center of the spray bar, α is the deviation angle parameter of the nozzle deviating from the front of the spray bar, β is the rotation angle parameter of the spray bar relative to when it is not operating, and R is the radius parameter of the target dust suppression area.

[0029] In the fixed-point dust suppression device of the present invention, each nozzle is provided with an adjustment mechanism, and the adjustment mechanism can adjust the vertical width of the water outlet of its corresponding nozzle so as to adjust the spraying distance of the nozzle. The smaller the vertical width of the water outlet, the farther the spraying distance. With such a setting, when the dust suppression vehicle applying the fixed-point dust suppression device is performing dust suppression operations, it can adjust the spraying distances of multiple nozzles in real time respectively through multiple adjustment mechanisms, so that the actual dust suppression area jointly formed by the multiple nozzles can continuously and accurately cover the required dust suppression area, and the actual spraying areas formed by each nozzle can be controlled to be staggered from each other, reducing the overlap and expanding the jointly formed actual dust suppression area. By doing so, the proportion of the amount of dust suppression water sprayed by each nozzle in the required dust suppression area is greatly increased, while the overlapping part is reduced, the proportion of the amount of water for effective dust suppression is increased, the water consumption of the dust suppression vehicle during actual operations is reduced, and the dust suppression effect is improved.

[0030] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0032] Figure 1 is a schematic structural diagram of the fixed-point dust suppression device in an embodiment of the present invention;

[0033] Figure 2 is Figure 1 a side view of the fixed-point dust suppression device in

[0034] Figure 3 is Figure 1 a schematic structural diagram of the nozzle and the adjustment mechanism in

[0035] Figure 4 is Figure 3 a side view of the nozzle and the adjustment mechanism in

[0036] Figure 5 is a schematic structural diagram of the dust suppression vehicle in an embodiment of the present invention;

[0037] Figure 6 is Figure 1 a schematic diagram of the operating parameters of the fixed-point dust suppression device in

[0038] Description of the reference numerals:

[0039] 1 slewing mechanism

[0040] 2 spray boom

[0041] 3 nozzle

[0042] 4 Adjusting mechanism

[0043] 41 Adjusting plate 42 Driving oil cylinder

[0044] 43 Fixed pulley 44 Transmission rope

[0045] 5 Water storage tank

[0046] 6 Air compressor Specific embodiments

[0047] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0048] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0049] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are usually in the direction shown in the accompanying drawings or in the vertical, perpendicular or gravitational direction for describing the relative positional relationship of each component.

[0050] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0051] The present invention first provides a fixed-point dust suppression device.

[0052] In one embodiment, referring to the attached Figure 1 to the attached Figure 4 As shown, the fixed-point dust suppression device includes a slewing mechanism 1, a spray rod 2, a plurality of nozzles 3 and a plurality of adjusting mechanisms 4. The spray rod 2 is horizontally arranged on the slewing mechanism 1 and can rotate around the vertical axis under the drive of the slewing mechanism 1. The plurality of nozzles 3 are arranged on the spray rod 2 and are spaced along the length direction of the spray rod 2. Each nozzle 3 is provided with an adjusting mechanism 4, and the adjusting mechanism 4 is used to adjust the vertical width of the water outlet of the corresponding nozzle 3.

[0053] In the fixed-point dust suppression device of this embodiment, each nozzle 3 is provided with an adjusting mechanism 4, and the adjusting mechanism 4 can adjust the vertical width of the water outlet of its corresponding nozzle 3 so as to adjust the spraying distance of the nozzle 3. The smaller the vertical width of the water outlet, the farther the spraying distance. With such a setting, when the dust suppression vehicle using this fixed-point dust suppression device performs dust suppression operations, it can adjust the spraying distances of multiple nozzles 3 in real time through multiple adjusting mechanisms 4 respectively, so that the actual dust suppression area jointly formed by multiple nozzles 3 can continuously and accurately cover the required dust suppression area, and the actual spraying areas formed by each nozzle 3 can be controlled to be staggered from each other, reducing overlap and expanding the jointly formed actual dust suppression area. In this way, the proportion of the amount of dust suppression water sprayed by each nozzle 3 in the required dust suppression area is greatly increased, while the overlapping part is reduced, the proportion of the amount of water for effective dust suppression is increased, the water consumption during the actual operation of the dust suppression vehicle is reduced, and the dust suppression effect is improved.

[0054] In one embodiment, the fixed-point dust suppression device further includes a controller. The controller is communicatively connected to the slewing mechanism 1 and multiple adjusting mechanisms 4 respectively, and is used to control the slewing mechanism 1 to drive the spray rod 2 to rotate within the angular range corresponding to the target dust suppression area according to the set target dust suppression area, and during the rotation of the spray rod 2, control each adjusting mechanism 4 to adjust the vertical width of the water outlet of each nozzle 3 in real time, so that the actual dust suppression area formed by the combination of the spraying areas of each nozzle 3 can cover the target dust suppression area.

[0055] In this embodiment, the fixed-point dust suppression device may further include an input unit such as a touch screen or a button input module. The input unit is set to be communicatively connected to the controller and is used for the user to input the parameters of the target dust suppression area, so as to set the target dust suppression area and feedback the setting information to the controller.

[0056] It can be understood that by controlling the slewing mechanism 1 to drive the spray rod 2 to rotate through the controller, the rotation ranges of multiple nozzles 3 can accurately correspond to the target dust suppression area. At the same time, by controlling multiple adjusting mechanisms through the controller to adjust the vertical width of the water outlet of multiple nozzles 3 in real time to adjust the spraying distances of multiple nozzles 3, the spraying distances of multiple nozzles 3 can be adaptively adjusted during the rotation process, the areas covered by each of them can be staggered from each other, the overlapping area can be reduced, and the actual dust suppression area can be expanded.

[0057] In one embodiment, refer to the appendix Figure 3 and the appendix Figure 4As shown in the figure, the adjusting mechanism 4 includes an adjusting plate 41 and a driving oil cylinder 42. The adjusting plate 41 is arranged inside the nozzle 3. The two lateral sides of the adjusting plate 41 are respectively abutted against the two side walls of the nozzle 3. The end of the adjusting plate 41 in the longitudinal direction is hinged to the water inlet of the nozzle 3, and the front end of the adjusting plate 41 in the longitudinal direction extends to the water outlet of the nozzle 3. The driving oil cylinder 42 is arranged outside the nozzle 3, and the output shaft is in transmission connection with the front end of the adjusting plate 41 through a transmission member. The telescopic movement of the output shaft of the driving oil cylinder 42 can drive the adjusting plate 41 to rotate, so that the front end of the adjusting plate 41 moves between the upper edge and the lower edge of the water outlet of the nozzle 3.

[0058] Specifically, the nozzle 3 can be composed of an inverted C-shaped plate and a sealing plate. The C-shaped plate includes a horizontal middle plate and two vertical side plates respectively connected to the two lateral sides of the horizontal middle plate. The sealing plate is located between the two vertical side plates, and the two lateral sides of the sealing plate are respectively welded to the two vertical side plates. In this way, a water flow channel for the dust suppression water to flow through is formed between the sealing plate and the C-shaped plate, and the water inlet and the water outlet of the water flow channel are the water inlet and the water outlet of the nozzle 3. Further, a reinforcing rib is also connected between the two vertical side plates, so that the nozzle 3 has good structural strength. Further, an included angle is formed between the sealing plate and the horizontal middle plate, so that the cross-section of the water flow channel gradually shrinks from the water inlet to the water outlet. In this way, the pressure of the dust suppression water flowing through the water flow channel can be increased, and it is ensured that the nozzle 3 has a relatively long spraying distance.

[0059] It can be understood that when the front end of the adjusting plate 41 moves towards the upper edge of the water outlet of the nozzle 3, the vertical width of the water outlet of the nozzle 3 decreases. When the front end of the adjusting plate 41 moves towards the lower edge of the water outlet of the nozzle 3, the vertical width of the water outlet of the nozzle 3 increases. That is to say, by driving the telescopic movement of the output shaft of the oil cylinder 42 to drive the front end of the adjusting plate 41 to move, the adjustment of the vertical width of the water outlet of the nozzle 3 can be realized.

[0060] In this embodiment, rubber pads can be detachably sleeved on the two lateral sides of the adjusting plate 41 to avoid direct friction between the adjusting plate 41 and the two side walls of the nozzle 3 during rotation, improve the service life of the nozzle 3 and the adjusting plate 41, and at the same time, play a role in sealing the gap between the two lateral sides of the adjusting plate 41 and the two side walls of the nozzle 3.

[0061] In this embodiment, a guide rail structure can also be arranged on the two side walls of the nozzle 3. The two lateral sides of the adjusting plate 41 are respectively slidably connected to the guide rail structures on the two side walls of the nozzle 3. The guide rail structure plays a role in guiding and supporting the adjusting plate 41, and improves the reliability of the rotation operation of the adjusting plate 41 and the structural stability.

[0062] In one embodiment, refer to the appendix Figure 3 and the appendix Figure 4As shown, the driving oil cylinder 42 is arranged on the outer top surface of the nozzle 3. The transmission member includes a fixed pulley 43 and a transmission rope 44. The fixed pulley 43 is arranged on the outer top surface of the nozzle 3 and above the water outlet of the nozzle 3. One end of the transmission rope 44 is connected to the output shaft of the driving oil cylinder 42, and the other end is wound around the fixed pulley 43 and connected to the front end of the adjusting plate 41.

[0063] It can be understood that the telescopic movement of the output shaft of the driving oil cylinder 42 can drive the front end of the adjusting plate 41 to rotate through the transmission rope 44.

[0064] Specifically, the transmission rope 44 can be made of a steel wire rope. The diameter of the steel wire rope is small and it has good connection reliability, and will not hinder the water output of the nozzle 3.

[0065] In another embodiment, the driving oil cylinder 42 can be vertically arranged on the outer bottom surface of the nozzle 3, and the output shaft penetrates through the bottom of the nozzle 3 and is connected to the bottom surface of the front end of the adjusting plate 41. In this way, the telescopic movement of the output shaft of the driving oil cylinder 42 can also drive the front end of the adjusting plate 41 to rotate.

[0066] In one embodiment, the fixed-point dust suppression device further includes a plurality of displacement sensors. Each driving oil cylinder 42 is provided with a displacement sensor, and the displacement sensor is used to detect the extension stroke of the output shaft of its corresponding driving oil cylinder 42.

[0067] It can be understood that by detecting the extension stroke of the output shaft of the driving oil cylinder 42 with the displacement sensor, the detection result can be correspondingly converted into the vertical width value of the water outlet of the nozzle 3. In this way, accurate data feedback can be provided for the control of the adjustment mechanism.

[0068] In one embodiment, referring to the attached Figure 1 As shown, a plurality of nozzles 3 are symmetrically arranged on both sides of the rotation center point of the spray rod 2, and each nozzle 3 extends obliquely away from the rotation center point. With such a setting, the actual dust suppression area formed by the plurality of nozzles 3 can be further increased.

[0069] In one embodiment, a water supply cavity is formed in the spray rod 2, and the spray rod 2 has a water inlet communicating with the water supply cavity. The water inlets of the plurality of nozzles 3 are respectively communicated with the water supply cavity. With such a setting, when the fixed-point dust suppression device is actually applied, the water supply device can be connected to the water supply cavity of the spray rod 2, and water can be input into the water supply cavity of the spray rod 2 to supply water to each nozzle 3 at the same time.

[0070] In one embodiment, the slewing mechanism 1 includes a slewing support and a slewing drive mechanism. The spray boom 2 is arranged on the slewing support, and the slewing drive mechanism drives the slewing support to rotate so as to drive the rotation of the spray boom 2. Further, an encoder may be arranged on the slewing support, and the rotation angle information of the slewing support is detected through the encoder, and then the rotation angle information of the spray boom 2 is obtained. In this way, accurate data feedback can be provided for the rotation operation control of the spray boom 2.

[0071] The present invention also provides a dust suppression vehicle, which includes a water storage tank 5, an air compressor 6 and the above fixed-point dust suppression device. The specific structure of the fixed-point dust suppression device refers to the above embodiments. Since this dust suppression vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0072] Specifically, referring to the attached Figure 5 As shown, the dust suppression vehicle further includes a chassis. The water storage tank 5, the air compressor 6 and the fixed-point dust suppression device are all arranged on the chassis. The air outlet of the air compressor 6 is communicated with the water storage tank 5 and is used to input compressed gas into the water storage tank 5. The water outlet of the water storage tank 5 is communicated with the water inlets of a plurality of nozzles 3 of the fixed-point dust suppression device through a pipeline. By inputting compressed gas into the water storage tank 5 through the air compressor 6, the water in the water storage tank 5 can be driven to flow into the plurality of nozzles 3 and be sprayed out through the plurality of nozzles 3.

[0073] In one embodiment, a water supply cavity is formed in the spray boom 2 of the fixed-point dust suppression device, and the spray boom 2 has a water inlet communicating with the water supply cavity. The water inlets of the plurality of nozzles 3 are respectively communicated with the water supply cavity. The water outlet of the water storage tank 5 is communicated with the water inlet of the spray boom 2 through a pipeline. A ball valve is arranged on the pipeline to control the on-off of the pipeline. The pipeline and the water inlet of the spray boom 2 are connected through a rotary joint to meet the rotation requirement of the spray boom 2.

[0074] In one embodiment, the dust suppression vehicle further includes a pressure sensor, and the pressure sensor is arranged on the water storage tank 5 and is used to detect the air pressure in the water storage tank 5.

[0075] It can be understood that the air pressure in the water storage tank 5 can be detected in real time through the pressure sensor, and the detection result can provide accurate data feedback for the control of the adjusting mechanism 4.

[0076] The present invention also provides a control method based on the above dust suppression vehicle.

[0077] In one embodiment, the control method includes:

[0078] Input the parameter information of the target dust suppression area, set the target dust suppression area. Specifically, the target dust suppression area is an arc-shaped area where the center of the circle is collinear with the rotation center of the spray boom 2. The parameter information of the target dust suppression area includes a radius parameter, a width parameter and a distance parameter from the spray boom 2.

[0079] Determine the operating angle range corresponding to the spray boom 2 according to the target dust suppression area, and control the slewing mechanism 1 to drive the spray boom 2 to rotate and operate within the operating angle range. Specifically, determine the operating angle range of the spray boom 2 according to the positions at both ends of the target dust suppression area;

[0080] Divide the target dust suppression area into multiple sub-areas, and respectively allocate the multiple sub-areas to multiple nozzles 3 one by one;

[0081] During the rotation operation of the spray boom 2, control the water output of each nozzle 3 so that each nozzle 3 can spray its corresponding sub-area. Specifically, during the rotation operation of the spray boom 2, the real-time air pressure in the water storage tank 5 can be obtained in real time, and the required spraying distance of each nozzle 3 can be determined in real time. The vertical width of the water outlet of the corresponding nozzle 3 can be adjusted in real time by controlling each adjusting mechanism 4 according to the real-time air pressure in the water storage tank 5 and the required spraying distance of each nozzle 3. In this way, the water output of each nozzle 3 can be controlled so that each nozzle 3 can spray its corresponding sub-area.

[0082] In one embodiment, the multiple sub-areas are respectively arc-shaped areas with different distances from the rotation center of the spray boom 2. That is to say, the target dust suppression area is divided into multiple sub-areas according to different distances from the rotation center of the spray boom 2, and each sub-area is an arc-shaped area.

[0083] In this embodiment, specifically, in combination with the attached Figure 6 As shown, during the rotation operation of the spray boom 2, the required spraying distance of the nozzle 3 can be determined according to the following formula:

[0084] L′ = L * [1 - cos(α + β)] / {R - L * [1 - cos(α + β)]}, where L′ is the required spraying distance parameter of the nozzle 3, L is the distance parameter between the outer arc of the sub-area corresponding to the nozzle 3 and the rotation center of the spray boom 2, α is the deviation angle parameter of the nozzle 3 deviating from the due front of the spray boom 2, β is the rotation angle parameter of the spray boom 2 relative to when it is not operating, and R is the radius parameter of the target dust suppression area.

[0085] In this embodiment, controlling each adjusting mechanism 4 to respectively adjust the vertical width of the water outlet of the corresponding nozzle 3 in real time according to the real-time air pressure in the water storage tank 5 and the required spraying distance of each nozzle 3 specifically includes determining the vertical width parameter of the water outlet of the nozzle 3 through the real-time air pressure in the water storage tank 5 and the required spraying distance parameter of the nozzle 3, and the controller controls the vertical width of the water outlet of the nozzle 3 based on the vertical width parameter of the water outlet of the nozzle 3. Among them, the vertical width of the water outlet of the nozzle 3 can be determined according to the following functional relationship:

[0086] L′ = k1P / H + a1, where L′ is the required injection distance parameter of the nozzle 3, P is the real-time air pressure parameter in the water storage tank 5, H is the vertical width parameter of the water outlet of the nozzle 3, and k1 and a1 are the specific parameter values obtained when fitting the function.

[0087] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0088] In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0089] Furthermore, any combinations can be made between different embodiments of the present invention as long as they do not violate the idea of the present invention, and they should also be regarded as the content disclosed by the present invention.

Claims

1. A fixed-point dust suppression device, characterized in that, it includes: a slewing mechanism; a spray boom, the spray boom is horizontally arranged on the slewing mechanism and can rotate around the vertical axis under the drive of the slewing mechanism; a plurality of nozzles and a plurality of adjusting mechanisms, the plurality of nozzles are arranged on the spray boom and are spaced along the length direction of the spray boom, and each nozzle is provided with one of the adjusting mechanisms, and the adjusting mechanism is used to adjust the vertical width of the water outlet of the nozzle corresponding to it; The fixed-point dust suppression device further includes a controller, and the controller is respectively communicatively connected with the slewing mechanism and the plurality of adjusting mechanisms, and is used to control the slewing mechanism to drive the spray boom to rotate within the angle range corresponding to the target dust suppression area according to the set target dust suppression area, and during the rotation of the spray boom, control each of the adjusting mechanisms to respectively and real-time adjust the vertical width of the water outlet of each nozzle, so that the actual dust suppression area formed by the spraying areas of each nozzle can cover the target dust suppression area; The adjusting mechanism includes an adjusting plate and a driving oil cylinder, the adjusting plate is arranged inside the nozzle, both sides of the adjusting plate in the transverse direction are abutted against the two side walls of the nozzle respectively, the end of the adjusting plate in the longitudinal direction is hinged to the water inlet of the nozzle, the front end of the adjusting plate in the longitudinal direction extends to the water outlet of the nozzle, the driving oil cylinder is arranged outside the nozzle and the output shaft is in transmission connection with the front end of the adjusting plate through a transmission member, and the telescopic movement of the output shaft of the driving oil cylinder can drive the adjusting plate to rotate, so that the front end of the adjusting plate moves between the upper edge and the lower edge of the water outlet of the nozzle; The driving oil cylinder is arranged on the outer top surface of the nozzle, the transmission member includes a fixed pulley and a transmission rope, the fixed pulley is arranged on the outer top surface of the nozzle and is located above the water outlet of the nozzle, one end of the transmission rope is connected to the output shaft of the driving oil cylinder, and the other end is wound around the fixed pulley and connected to the front end of the adjusting plate; The nozzle is composed of an inverted C-shaped plate and a sealing plate, the C-shaped plate includes a horizontal middle plate and two vertical side plates respectively connected to both sides of the horizontal middle plate in the transverse direction, the sealing plate is located between the two vertical side plates and both sides in the transverse direction are respectively welded to the two vertical side plates, a water flow channel for the dust suppression water to flow through is formed between the sealing plate and the C-shaped plate, the water inlet and the water outlet of the water flow channel are the water inlet and the water outlet of the nozzle, and there is an included angle between the sealing plate and the horizontal middle plate.

2. The fixed-point dust suppression device according to claim 1, characterized in that, the fixed-point dust suppression device further includes a plurality of displacement sensors, and each driving oil cylinder is provided with one of the displacement sensors, and the displacement sensor is used to detect the extension stroke of the output shaft of the driving oil cylinder corresponding to it.

3. A dust suppression vehicle, characterized in that, The dust suppression vehicle includes a water storage tank, an air compressor, and the fixed-point dust suppression device according to any one of claims 1 or 2. The air compressor is used to input compressed gas into the water storage tank, and the water outlet of the water storage tank is connected to the water inlets of the multiple nozzles of the fixed-point dust suppression device.

4. The dust suppression vehicle according to claim 3, wherein, the dust suppression vehicle further includes a pressure sensor, and the pressure sensor is arranged in the water storage tank and is used to detect the air pressure in the water storage tank.

5. A control method for the dust suppression vehicle according to claim 3 or 4, wherein, the control method includes: inputting parameter information of a target dust suppression area and setting the target dust suppression area; determining a corresponding operation angle range of the spray bar according to the target dust suppression area, and controlling the slewing mechanism to drive the spray bar to rotate and operate according to the operation angle range; dividing the target dust suppression area into multiple sub-areas, and respectively and correspondingly allocating the multiple sub-areas to the multiple nozzles one by one; during the rotation operation of the spray bar, controlling the water output of each nozzle so that each nozzle can spray its corresponding sub-area.

6. The control method according to claim 5, wherein, during the rotation operation of the spray bar, controlling the water output of each nozzle so that each nozzle can spray its corresponding sub-area includes: during the rotation operation of the spray bar, obtaining the real-time air pressure in the water storage tank in real time, and determining the required spraying distance of each nozzle in real time. According to the real-time air pressure in the water storage tank and the required spraying distance of each nozzle, controlling each adjusting mechanism to respectively adjust the vertical width of the water outlet of the corresponding nozzle in real time.

7. The control method according to claim 6, wherein, the multiple sub-areas are respectively arc-shaped areas with different distances from the rotation center of the spray bar, and the required spraying distance of each nozzle is determined according to the following formula: L′=L*[1-cos(α + β)] / {R - L*[1-cos(α + β)]}, where L′ is the required spraying distance parameter of the nozzle, L is the distance parameter between the outer arc of the sub-area corresponding to the nozzle and the rotation center of the spray bar, α is the deviation angle parameter of the nozzle deviating from the due front of the spray bar, β is the rotation angle parameter of the spray bar relative to when it is not operating, and R is the radius parameter of the target dust suppression area.

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