108 results about "Dust detection" patented technology

The invention relates to the related technical field of dust detection, and provides a mining induced charge and light scattering fusion dust detection device and method.The dust detection device comprises a workbench, a sampling assembly and a detection assembly, and the sampling assembly comprises a sampling air pump, a conical airflow homogenizer and a closed sampling cavity; the detection assembly comprises an annular sliding rail, a light scattering detection module and an electrostatic induction detection module; the dust detection method comprises the following steps: S1, device initialization and zero calibration; s2, sampling preparation of dust-containing airflow; s3, dual-module synchronous signal acquisition; s4, data processing and temperature and humidity compensation; s5, carrying out anti-interference protection assembly; and S6, data fusion and result output. S7, device cleaning and standby; through cooperative work of the double detection modules, dust detection signals in different concentration intervals are accurately captured, wide-range coverage from low concentration to high concentration is achieved, and synchronous monitoring of dust concentration and particle size characteristics is achieved.

The invention relates to the technical field of outdoor electrical equipment protection, and discloses an outdoor cabinet intelligent self-cleaning system adaptive to a complex environment, the self-cleaning system is composed of a cabinet shell, a dustproof module, a self-cleaning module, a dust collection groove, a detection module and a control module, the cabinet shell provides a high-strength and corrosion-resistant protection structure, and the dust collection groove is provided with a dust collection groove. Air circulation is realized through the air inlet and the air outlet; the dustproof module is used for intercepting external dust; the self-cleaning module is used for removing dust accumulated on a filter screen, the dust collecting groove is used for collecting dust generated in the cleaning process, the detection module is used for monitoring the environment and the state of the filter screen in real time and collecting key data, and the control module is used for data processing, intelligent decision making, control signal generation and dynamic cleaning strategy adjustment. Through cooperative work of the cabinet shell, the dustproof module, the self-cleaning module, the dust collection groove, the detection module and the control module, the system can accurately sense environment changes, self-adaptively trigger cleaning operation and efficiently reduce manual intervention.

The invention discloses self-adsorption environment-friendly dust removal equipment which comprises a box body, a top plate is arranged on one side of the top of the box body, an adsorption plate is fixedly connected to the bottom of the top plate, and an air inlet hopper is fixedly connected to one side of the box body. According to the self-adsorption environment-friendly dust removal equipment and the control system, an exhaust fan is used for directly extracting and filtering, dust is prevented from being adsorbed on the inner wall of a pipeline, a dust sensor outside an air inlet hopper detects external dust, and the internal exhaust fan is started to suck external air when the external dust exceeds a threshold value; after being filtered by a filter plate and an adsorption plate in the box body, gas is sprayed through a vertical pipe in a spraying area, dust in the air can be better reduced, when the dust concentration is larger than 8 mg / m, a dust removal enhancing mode is started, the mode switching module can control the exhaust fan to increase the rotating speed, the exhaust capacity of the exhaust fan to the air outside the box body is enhanced, and the dust removal effect is improved. And the dust-removed air is discharged from the air outlet hopper.

The invention provides an environment detection device for a dust environment, and relates to the technical field of dust detection. The environment detection device for the dust environment comprises a movable base, the top end of the movable base is fixedly connected with a top end anti-falling frame, one side of the top end of the top end anti-falling frame is fixedly connected with a fixed box body, and a dust collection structure is arranged at the top end of the fixed box body; a detection box is arranged at the position, located on one side of the fixed box body, of the top end of the top end anti-falling frame, a detection structure is arranged on one side of the detection box, the dust collection structure comprises a top end conveying seat fixed to the top end of the fixed box body, and a transmission box is installed at the top end of the top end conveying seat. The environment detection device for the dust environment has the advantages that the problems that traditional dust detection equipment is poor in mobility, incomplete in sampling, lagged in detection and the like are solved, real-time monitoring, efficient sampling and data feedback of the dust environment are achieved, and reliable technical support is provided for operation safety protection and environment quality management and control.

The utility model discloses a dust detector through control luminous time to control luminous quantity, including setting in the detection area's luminous element, light receiving element and be used for to the light current signal of light receiving element in producing amplification amplifier circuit, control and detect light emission and light receiving signal's singlechip, the drive circuit of luminous element adopts transistor switch circuit to control luminous time, the drive circuit includes transistor and current -limiting resistance, luminous element, transistor and current -limiting resistance series connection with power supply and form the electric loop, the transistor trigger control end is controlledly connected in the singlechip, the utility model discloses dust sensor through control luminous time realizes to luminous element luminous quantity control, through the luminous quantity of luminous element accurate control, can improve dust sensor measurement result's accuracy and reliability.

The invention provides a heavy calcium carbonate packaging quality detection method based on visual inspection, and relates to the technical field of heavy calcium carbonate packaging quality detection.The method comprises the steps that a low-dust detection angle and a high-dust detection angle are calculated according to the radian angle range of a packaging bag; the method comprises the following steps: acquiring pixel difference matrixes of in-bag areas of two images with high and low dust detection angles, performing shadow and brightness gradient identification on the in-bag areas according to the pixel difference matrixes, dividing brightness areas, and calculating the identification thickness of dust in each area according to the brightness of each brightness area, the method comprises the following steps: acquiring environmental parameters of a package detection area, calculating the thickness, position and quantity of different brightness areas of a bag-in-bag area, calculating a quality evaluation value of the bag-in-bag area, establishing a visual detection model, calculating a quality evaluation value of a bag end area, calculating a package quality score according to the quality evaluation value of the bag-in-bag area, and identifying the package quality.

The application discloses a dust detection device and method applied to city management, and belongs to the dust detection field.The device comprises a fixing seat and a wind power mechanism.The wind power mechanism is driven to work by the wind power, the dredging mechanism blows air to the hole part of the filter screen, dust blocked in the hole of the filter screen is blown out, and the filter screen is effectively cleaned by cooperating with the cleaning brush, so that the filter screen is prevented from being blocked, outside air cannot enter the detection cylinder, the air intake efficiency is ensured, the quality and efficiency of dust detection in the air are ensured, water in the management ring intermittently sprays out through the water spraying hole to form water mist, the water mist enters the outside environment along with the air under the action of the air discharged by the fan blade, dust in the outside environment air is condensed, the mass of the dust is increased, the dust falls to the ground under the action of gravity, the content of the dust in the air is reduced, and personnel are well protected.

The utility model relates to the technical field of emergency rescue equipment, in particular to an information acquisition device for an emergency rescue site of a collapsed building, which comprises an acquisition box, and an information acquisition assembly and a telescopic assembly are arranged in the acquisition box. The information acquisition assembly covers a control panel and various information acquisition modules, such as a life acquisition module, a gas detection module, a dust detection module and a temperature and humidity detection module, and communicates with the control panel through a wireless signal transmission module. The telescopic assembly is composed of a telescopic telescopic rod, the sealing cavity is inflated through the air pump to achieve stretching and retracting, and the free end of the telescopic assembly is provided with the disassembly and assembly assembly so that disassembly and assembly of the information collection module can be facilitated. According to the device, rescue site information can be collected in all directions, the detection area is flexibly adjusted, and the efficiency and safety of rescue work are improved.

The invention belongs to the technical field of dust detection, and relates to a dust detection device which comprises a cylindrical detection box, double doors which can only rotate towards the interior of the detection box are rotationally arranged at openings in the two ends of the detection box, and through holes are formed in the bottoms of the openings in the two ends of the detection box. A dust collection box is fixedly connected to the position, located at each through hole, of the bottom face of the detection box, two detectors are symmetrically and fixedly installed at the top of the detection box, detection heads of the two detectors extend downwards into the detection box, and two telescopic protection shells are vertically and slidably arranged at the top end in the detection box through second springs; the two protection shells are arranged outside the two detection heads in a sleeving mode respectively, annular cleaning blocks are fixedly arranged at the bottom ends in the two protection shells, and the cleaning blocks abut against the outer portions of the detection heads in a sliding mode. The dust collection device has the advantages that dust on one side of the second filter screen is automatically blown into the corresponding dust collection box through the fan, shutdown operation is not needed, and the working efficiency is improved.

This invention provides a dust detection and concentration classification method based on prior information, including the construction of a dust detection and monitoring system, the creation of a dataset, and the optimization of the algorithm. Compared with other deep learning detection technologies, this invention obtains a grayscale image through the Fast-DMPHN image dehazing network. This grayscale image can provide the dust concentration, and it has strong prior information. This prior information can compensate for the spatial information lost by the U-net network, thereby improving the segmentation accuracy. Combining the dust concentration and the area of ​​the dust region, a comprehensive judgment is made and the dust concentration is classified. This invention can automatically detect dust in a region and determine the corresponding level. Based on the segmentation results and dust concentration, it can achieve precise dust removal. Compared with previous dust detection methods, it has the advantages of fast detection speed, high accuracy, and rapid and accurate dust removal, which improves efficiency and saves human capital, and has great value and significance.

The utility model relates to the technical field of flue gas detection, and particularly discloses a dust detection device for a flue gas pipeline, which comprises a box body, a connecting mechanism is fixedly arranged on the side wall of the box body, a heat tracing sampling pipe penetrates through and is fixedly arranged in the connecting mechanism, and a sampling probe is fixedly arranged at one end, far away from the box body, of the heat tracing sampling pipe. A protection port is fixedly arranged at one end, far away from the heat tracing sampling pipe, of the sampling probe, the whole protection port is of a circular truncated cone-shaped structure, a plurality of flow guide grooves are uniformly formed in the protection port in the circumferential direction at intervals in a penetrating manner, and a gas conveying pipe I, a gas conveying pipe II and a gas conveying pipe III are uniformly and fixedly arranged on the side wall of the box body at intervals. By arranging the heat tracing sampling pipe, heat tracing can be achieved in the whole process, and it is avoided that the temperature of smoke drops in the conveying process, and condensate water is generated; the sampling probe can be prevented from being directly exposed in high-speed flue gas by arranging the protective port and the plurality of diversion trenches, and the flue gas is prevented from directly impacting and blocking the sampling probe.

The application discloses a cleaning instrument control system, which comprises a rolling brush motor control circuit for driving and controlling a rolling brush device, an adsorption motor driving circuit for driving and controlling an adsorption device under the control of a controller, and a dust detection module of the controller for collecting dust data through a dust sensing circuit and automatically adjusting the working mode and time according to the collected dust data. Thus, the dust and / or mites on the surface of the cleaned object are collected through the dust sensing circuit, and the collected data are output to the controller, and the controller can adjust and control the working mode and time of the cleaning instrument according to the quantity of the dust and / or mites. The cleaning demand of different users can be met. Thus, the working mode and time of the mite removing instrument are automatically adjusted according to different dust or mite data, and the cleaning effect and efficiency are improved.

This invention discloses a novel zinc ash filtration system and method, relating to the technical field of hot-dip galvanizing production lines in metallurgy. It includes a fan, a finned cooler, a coarse filter, a precision filter unit, a differential pressure sensor, a heater, and dust detection devices before and after filtration. The fan provides suction, drawing high-temperature zinc ash-containing atmosphere from the middle section of the furnace nose. The finned cooler cools the 700°C gas to 40°C before it sequentially enters the coarse and precision filters. The precision filter unit is equipped with a differential pressure sensor; when a differential pressure alarm occurs, it automatically switches to a backup filter unit, achieving uninterrupted production. The filtered gas is heated by the heater and returned to the thermal expansion chamber in the furnace area, forming a closed-loop circulation. The dust detection device monitors the dust concentration before and after filtration in real time. This invention features high cooling efficiency, high filtration accuracy, online automatic switching, and full-process monitoring, significantly improving the problem of zinc ash accumulation at the furnace nose and enhancing the surface quality of galvanized sheets. It is suitable for continuous hot-dip galvanizing and continuous annealing production lines.

The invention relates to the technical field of raised dust detection, in particular to a water conservancy construction site raised dust detection device and method, and the water conservancy construction site raised dust detection device comprises a detection box, a humidity sensor, a temperature sensor, a raised dust detector and a heat exchange device; a bearing plate is arranged in the detection box, the interior of the detection box is divided into a mounting cavity and a heat exchange cavity by the bearing plate, the flying dust detector is mounted on the bearing plate and located in the mounting cavity, the flying dust detector is provided with a vertically arranged detection pipe, the detection pipe is connected with a first air inlet pipeline and a second air inlet pipeline, and the first air inlet pipeline and the second air inlet pipeline are communicated with each other. The first air inlet pipeline is located outside the detection box, the second air inlet pipeline is located in the heat exchange cavity, the heat exchange device comprises a heat exchange pipe penetrating through the heat exchange cavity, and the heat exchange pipe is used for adjusting the temperature in the detection box so as to heat and dehumidify air in the second air inlet pipeline and improve the accuracy of raised dust detection; and meanwhile, energy consumption can be reduced.

The utility model discloses a dust removal device for a semi-closed dust production working area based on air curtain dust blocking, relates to the technical field of industrial dust removal, and provides the following scheme that the dust removal device comprises the semi-closed dust production working area, a dust suction opening is formed in the upper end of the semi-closed dust production working area, and a dust suction mechanism is connected to the upper end of the dust suction opening; an outlet is formed in one side of the semi-closed dust production working area, an air curtain retaining wall is arranged at the top end of the outlet, an air conveying pipeline is fixed to the inner wall of the air curtain retaining wall, air spraying heads are fixed to the air conveying pipeline at equal intervals, and the air outlet ends of the air spraying heads are connected with nozzles. The other end of the gas conveying pipeline extends to the outside of the semi-closed dust production working area and is connected to the air outlet end of the air compressor, and a dust detection mechanism is fixed to the outer wall of the air curtain retaining wall. According to the utility model, the air volume of the dust remover can be dynamically regulated and controlled according to the concentration of the overflowed dust volume, so that the dust removal efficiency is improved, the energy consumption is reduced, the production cost is reduced and the service life of the dust remover is prolonged on the premise of effectively controlling the dust overflow.

The invention relates to the technical field of mining mechanical equipment, in particular to a mining ultrasonic dry fog negative pressure gas circulation chemical wetting intelligent dust suppression system. Comprising a spraying dust-settling module, a dust detection module, a spontaneous power supply module and an information control module. The dust detection module is used for monitoring the dust concentration in a roadway in real time and transmitting a detection signal to the information control module; the information control module analyzes and outputs the detection signal based on the energy provided by the spontaneous power supply module so as to drive the spraying dust suppression module to realize automatic spraying dust suppression. Superfine liquid drops are generated through the synergistic effect of ultrasonic atomization and chemical dust suppression, and dust trapping, settling and source suppression are achieved; a double-layer semi-closed negative pressure circulation structure is adopted to actively guide dust-containing airflow to enter an atomization area, gas self-circulation purification is formed, and the dust removal efficiency is improved.

The utility model provides a wafer cassette internal pollution detection device, and relates to the wafer cassette detection device field, the wafer cassette internal pollution detection device comprises a pedestal, the upper end of the pedestal is connected with a side plate, the upper side of the pedestal is provided with a detection rack, the inner side of the side plate is slidingly connected with a detection assembly, the detection rack comprises a fixed rack, the inner side wall of the fixed rack is provided with a limiting strip, and the limiting strip is connected with the detection assembly. A groove plate is arranged on the upper side of the fixing frame, a measuring plate is slidably inserted into the upper end of the groove plate, a limiting plate is arranged at the top of the measuring plate, the detection assembly comprises a lifting plate, the outer end of the lifting plate is connected with a mounting plate, and a dust detector is mounted on the upper side of the mounting plate. And the outer end of the dust detector is connected with a detection probe through a wire. According to the utility model, pollution detection can be conveniently carried out on the surface of the slot on the inner side of the wafer box, and meanwhile, the appearance of the wafer box can be conveniently detected.

The utility model relates to the technical field of dust detection, in particular to a portable dust concentration detection box which comprises a box body, a box cover is hinged to the upper portion of the box body, a handle and a hasp are fixedly connected to the front portion of the box body, a limiting plate is arranged in the box body, and a displayer and a plurality of sampling heads are embedded into the limiting plate in the same row. A gravity sensor is fixedly connected to the position, located at the bottom of the sampling head, of the limiting plate, a single-chip microcomputer controller is arranged in the limiting plate, the gravity sensor is in communication connection with the single-chip microcomputer controller, the displayer is controlled by the single-chip microcomputer controller, and a sampling auxiliary bottle, a filter membrane storage box and tweezers are sequentially embedded into the position, located below the sampling head, of the limiting plate in the same row. According to the utility model, the replaceable sampling head can realize multiple times of continuous sampling on different occasions, the gravity sensor is matched to detect the weight of the sampling head before and after sampling, and a measurement result can be immediately obtained through the single chip microcomputer controller.

The invention discloses an intelligent cleaning robot for a photovoltaic power station and a navigation control system. The intelligent cleaning robot for the photovoltaic power station comprises a robot body, a polarized light dust detection module and a point cloud fusion obstacle avoidance module. The navigation control system comprises the intelligent cleaning robot for the photovoltaic power station, and further comprises a dynamic dirt map building module and an anti-interference path planning module. According to the invention, dust can still be accurately detected in a strong reflection environment, and through a continuous smudginess thermodynamic diagram of the whole photovoltaic power station, a path planning algorithm is facilitated to preferentially clean a high-smudginess area; and the balance between the cleaning efficiency and the safety is realized through anti-interference path planning.

The application discloses a dust detection and cleaning method and device for a projector, and the method comprises the following steps: acquiring a first temperature T a at a starting time of the projector and a second temperature T b at a thermal equilibrium time; if a difference Δt between the thermal equilibrium time and the starting time satisfies a first condition and a difference ΔT between the second temperature T b and the first temperature T a satisfies a second condition, then the fan rotating speed is adjusted according to a preset rule. The application has the beneficial effect that, during the operation of the projector, whether dust blockage exists at the air inlet of the projector is detected in real time through temperature parameters and time parameters, and the fan rotating speed is automatically adjusted according to the preset rule to blow out the dust, the detection process is intelligent and convenient, and the use experience of a user is not affected at all, and the dust can be cleaned in time after the detection, so that the heat dissipation effect of the projector is ensured.

This invention discloses an auxiliary detection system and method for fault location in hollow optical cables. By deploying moisture and dust detection devices in each splice box of the hollow optical cable and combining them with a splice box detection management platform, this invention achieves proactive monitoring and accurate fault diagnosis of environmentally sensitive factors in hollow optical cables. Specifically, addressing the pain point of hollow optical cables being highly sensitive to moisture and dust, and the difficulty of accurate fault location by traditional OTDRs, this invention utilizes real-time collected moisture and dust data, combined with signal reception power and historical detection data for comprehensive analysis. This effectively distinguishes abnormal environmental conditions within different splice boxes, thereby accurately identifying the specific location of the fault and solving the problem of traditional detection methods failing. Therefore, this invention provides an auxiliary judgment and location technology for faults in hollow optical cables caused by moisture and dust, improving maintenance efficiency and reducing hollow optical cable faults.

The invention is suitable for the technical field of printed circuit board processing, and provides a broken cutter detection method, a broken cutter detection structure, a chip suction cover and processing equipment. The cutter breaking detection method is applied to the PCB machining equipment, the PCB machining equipment is provided with a cutter breaking sensor and a dust detection device, the cutter breaking detection method comprises the steps that the current state of a cutter is obtained, and the current state comprises the machining state and the non-machining state; when the cutter is in the machining state, whether the cutter is broken or not is detected through the dust detection device; and when the cutter is in the non-machining state, whether the cutter is broken or not is detected through the cutter breaking sensor. According to the invention, whether the cutter is broken can be identified in time.

The utility model relates to a kind of tunnel construction dust detection devices including sampling gas path, dust detector based on light signal and signal transmitter;Sampling gas path, including air inlet pipeline, optical observation cavity and air outlet pipeline;Dust detector, including the light source of setting at the optical observation cavity of sampling gas path, light path and sampling gas path are orthogonal;Area array photoelectric detector is connected with transmitter electric signal;Signal transmitter, including radio frequency antenna, for the signal of area array photoelectric detector received is sent to the receiving end of collected data.The tunnel construction dust detection device provided by the utility model realizes the real-time dust detection of anti-interference by sealing, independent sampling gas path and independent, isolated light signal path relative to sampling gas path.Optimized scheme, detection laser is shaped into narrow light spot, adopts double-wavelength detection, cooperates with impact type pre-separator, realizes the dust detection resolution improvement of different dimensions such as detection time, detection granularity.

The application relates to a dust detection method, device, equipment, medium and program product of a photovoltaic module, and relates to the technical field of photovoltaics. The method comprises the following steps: in response to a dust detection instruction for a photovoltaic module, obtaining a module image of the photovoltaic module and environment features of an environment in which the photovoltaic module is located; performing feature extraction on the module image to obtain a plurality of image features for representing dust coverage influence; fusing the plurality of image features and the environment features to obtain fused features; and performing dust coverage detection on the photovoltaic module based on the fused features to obtain a dust coverage detection result of the photovoltaic module. The method can improve the dust detection accuracy of the photovoltaic module.

The application discloses a kind of electrostatic powder spraying dust concentration on-line detection device, it is related to dust detection technical field, including detection pipeline, detection pipeline is equipped with shell, detection pipeline is opened with detection port, detection port is fixedly connected with dust detection base, dust detection base top and upper detection seat are movably connected, and perspective board is installed in upper detection seat, and the top of perspective board is provided with photosensitive sensor, and the outside of perspective board is provided with laser emitter, and lens adjuster is arranged between dust detection base and upper detection seat, pipe wall cleaning component is arranged in detection pipeline, pipe wall cleaning component is movably connected with drive module, and adjusting assembly is arranged on drive module, dust in detection pipeline can be sampled by setting dust detection base, and dust concentration can be on-line detected by light scattering mode, to ensure the precision of detection, and the incidence angle of laser can be adjusted in real time by lens adjuster, to select the best light-emitting angle.

The invention relates to the technical field of intelligent inspection of coal mines, in particular to an underground inspection system and method based on a quadruped robot. The system comprises a remote command center and a quadruped robot, wherein the quadruped robot comprises a quadruped bionic mobile platform; the dust detection module is used for collecting the dust concentration of the underground environment; the multi-mode gas detection module is arranged in the head area of the quadruped robot, comprises a gas detection sensor, a temperature sensor, a humidity sensor and a micro airflow guide fan, and is used for collecting underground gas state information; the environment sensing module is used for starting equipment matched with the dust concentration to collect underground environment data; the path planning module is used for constructing an environment map based on the environment data and performing path planning based on the environment map; and the early warning module is used for carrying out analysis based on the gas state information and generating graded early warning information.

The application belongs to the technical field of sweeping robots, and provides a filter screen life detection circuit, a filter screen life detection device and a sweeping robot, wherein the micro dust detection circuit is arranged in the air duct, the micro dust concentration in the air duct is detected through the micro dust detection circuit, a micro dust detection signal is generated, and a filter screen replacement signal is generated by the main control circuit in the case that the voltage of the micro dust detection signal is greater than a first preset threshold, so that the user knows that the filter screen of the sweeping robot reaches the service life, the filter screen life is judged by judging the micro dust concentration in the air duct, the replacement of the filter screen is reduced, the cost is saved, and the user who forgets to replace the filter screen can be timely notified to replace a new filter screen.

The application belongs to the technical field of medical treatment, and particularly relates to a small electronic temperature card integrating dust detection and adsorption functions, which comprises a power module, a main control chip, a thin film button, a display screen, a ventilation opening, a power switch and a shell. The main control chip comprises a main controller module. The main controller module is based on an Arduino system and is used for processing original data information obtained from a dust detection module and a temperature detection module. After processing, the original data information is transmitted to a man-machine interaction module, the temperature detection module and a buzzer alarm module. The application has a composite function, can cope with an environment requiring comprehensive epidemic prevention, solves the problem of single function of an existing epidemic prevention device, is small in size, convenient to carry, has various data displayed in a graphical manner, is intuitive in data, is special for special person, is carded, is more sanitary and safe in a grid space where many people gather, is simple to operate, has a graphical operation interface and is convenient for the elderly and children to use.

The utility model discloses a workshop air quality detection device, relates to the field of air quality detection, and provides the following scheme aiming at the problems that the existing workshop air quality detection device is usually a fixed detection system, and most of the workshop air quality detection devices can only widely detect the air quality when detecting the air. The device comprises a box body, a workbench and a sampling cylinder, the workbench is arranged at the top of the box body, the sampling cylinder is arranged at the top of the workbench in a penetrating mode, multiple detection mechanisms are installed at the top of the workbench, and a multi-layer sampling mechanism is arranged in the sampling cylinder. The workshop dust detection device is novel in structure, particle dust in a workshop can be sieved and layered, dust components of different layers can be detected, meanwhile, the wind direction, the wind speed and the air humidity in the workshop can be detected, and the workshop dust detection device is provided with a movable structure and can detect air at all positions in the workshop.

The utility model relates to the field of construction environmental protection equipment, in particular to an intelligent spraying device which comprises an annular spraying pipe, a water pump is arranged at one end of the spraying pipe, a plurality of flying dust detection sensors are installed on the spraying pipe, and a plurality of water outlet pipes are arranged at the bottom of the spraying pipe. The bottom end of the water outlet pipe is provided with a ball body which rotates in the horizontal direction along with liquid flowing, the top end of the ball body is provided with a water inlet hole, the bottom end of the ball body is provided with an atomizing nozzle, and the included angle between the central axis of the atomizing nozzle and the central axis of the water outlet pipe is 10-20 degrees; according to the utility model, the concentration of raised dust is detected through the raised dust detection sensor, and when the concentration reaches a preset threshold value, the water pump is turned on to carry out dust falling treatment on a construction site through the atomizing nozzle, so that manual operation is avoided, and the timeliness of dust falling is improved.