1173 results about "Dust pollution" patented technology

The invention relates to a raised dust pollution source image enhancement processing method and system, and the method specifically comprises the following steps: collecting a raised dust pollution source image and environment parameters, and marking a raised dust region and a background to construct a data set; estimating image illumination and reflection components by using multi-scale Gaussian kernel convolution, fusing the image illumination and reflection components to obtain an enhanced image, enhancing the contour through adaptive morphological operation, and generating a morphological enhanced image; real raised dust texture is injected through random deformation field elastic transformation in combination with texture synthesis, and a synthetic enhanced image is obtained; constructing an image enhancement model, inputting a synthetic enhanced image, extracting multi-scale features by an encoder, enhancing the features by a decoder, reserving boundaries, optimizing the model in combination with a loss function, enhancing an output result through region self-adaptive fusion, and completing model training; and finally, inputting a newly acquired image into the trained model to generate a final enhanced flying dust pollution source image. The flying dust image quality is improved, features are accurately extracted, and pollution source identification and monitoring are assisted.

The invention discloses a sand and dust pollution health risk early warning terminal and early warning method, and the method comprises the steps: obtaining multi-source input data, such as meteorological parameters, sand and dust pollutant concentration and geographical environment, in real time, and carrying out the preprocessing through a data fusion algorithm, thereby obtaining a standardized data set; based on the data set, utilizing a trained time sequence prediction model to output a sand and dust pollution level prediction value of a future preset time length; meanwhile, an exposed crowd sensitivity index and regional health baseline data containing the disease incidence rate and the meteorological sensitive crowd proportion are constructed; calculating a comprehensive health risk index through a dynamic health risk assessment model in combination with the predicted value, the sensitivity index and the baseline data; and when the index exceeds a preset threshold dynamically adjusted based on the incidence peak range in the baseline data, generating a graded early warning signal and issuing the graded early warning signal in real time, thereby realizing accurate early warning of the dust pollution health risk.

The invention discloses a garden construction flying dust pollution prediction and suppression system based on big data multi-dimensional analysis, and belongs to the field of environment detection. The invention discloses a garden construction flying dust pollution prediction and suppression system based on big data multi-dimensional analysis. The system comprises a data acquisition module, an edge calculation node module, a prediction and pre-diagnosis module, a suppression strategy generation module and an intelligent scheduling execution module. The problems of monitoring lagging, difficulty in tracing, passive treatment and serious resource waste in the prior art are solved, a full-dimensional data acquisition and processing system is constructed, accurate perception and dynamic association of construction dust pollution sources are realized, advanced prediction of pollution situations is realized by deploying edge calculation and cloud intelligent analysis, and the construction dust pollution sources can be effectively monitored. And finally, through dynamic optimization of a suppression strategy and intelligent scheduling execution, conversion from passive response to active pre-control and from extensive operation to targeted treatment is realized, and the problems of monitoring lag, passive response, resource waste and the like in traditional treatment are effectively solved.

The invention relates to a photovoltaic sand and dust identification method based on color space fusion and lightweight learning, and the method comprises the following steps: S1, obtaining image data of a photovoltaic module, detecting a module region in an image, and obtaining a mask image of the module region; s2, extracting an ROI image of the photovoltaic module, and performing geometric correction processing; s3, converting the ROI image from an RGB color space to an HSV color space; s4, respectively carrying out threshold setting on the H, S and V three-channel images based on the HSV color space; s5, fusing threshold setting results of the H, S and V channels, generating a final sand and dust pollution mask pattern, and completing sand and dust region identification; and S6, calculating the sand-dust covering proportion of the polluted area on the surface of the component, and dividing pollution grades according to the sand-dust covering proportion. According to the invention, the dust area on the surface of the photovoltaic module can be accurately extracted under different illumination conditions, standardized quantitative evaluation of the pollution degree is realized, and the method is suitable for intelligent cleaning management and remote operation and maintenance scheduling scenes of a photovoltaic system.

The invention relates to the technical field of environment control of earth excavation, in particular to an earth excavation construction flying dust suppression method and system.The earth excavation construction flying dust suppression method comprises the steps that construction intensity prediction is conducted, specifically, the construction activity intensity and duration in a specific time period in the future are predicted by accessing a construction management system; vehicle information acquisition and fusion: identifying and classifying incoming and outgoing vehicles to obtain accurate vehicle passing frequency and type distribution; raising dust risk assessment and grade determination: establishing a raising dust risk assessment model based on the predicted construction intensity, real-time vehicle passing data and meteorological parameters, and performing grade determination on raising dust risks of different areas; and the regional dynamic spraying control module is used for dividing the construction site into a plurality of independent control regions according to the dust raising risk level and the wind direction information, dynamically adjusting the start-stop time sequence, the water quantity and the spraying angle of a spraying device in each region, and realizing regional and differentiated dust raising suppression. On the premise of saving water and electricity, the problem of flying dust pollution in earth excavation operation is solved.

The invention discloses a dustproof shed environment balancing method and system based on multivariable fuzzy control, and the method comprises the steps: collecting multivariable environment data, and carrying out the preprocessing of the multivariable environment data through a Kalman filtering algorithm, and obtaining the target multivariable environment data; based on a dynamic weighted summation method, a comprehensive cleanliness risk index and a comprehensive cleanliness risk index change rate of the target multivariable environment data are obtained through calculation; based on a multiple-input multiple-output fuzzy control core algorithm, taking the comprehensive cleanliness risk index and the change rate thereof as input, and outputting to obtain a control value in a percentage form; and adaptive correction is carried out based on a reinforcement learning Q-learning algorithm. Through multivariable data acquisition, comprehensive cleanliness risk index, fuzzy control and self-adaptive correction, control precision and stability jump are realized, manual frequent debugging is not needed, long-term operation control errors are reduced, hidden dangers of dust pollution, humidity condensation and the like are effectively eliminated, and the failure rate after equipment is put into operation is reduced.

The invention provides an MTP optical fiber connector and a connector assembly, and relates to the technical field of optical fiber connectors. Wherein the MTP optical fiber connector comprises a connector shell, an optical fiber plug, a first elastic reset structure and a protection device, an installation cavity is arranged in the connector shell, the optical fiber plug can move in the cavity, and the first elastic reset structure enables the optical fiber plug to retract when the optical fiber plug is not in butt joint. The protection device comprises a rotatable protection plate and a second elastic reset structure and seals the opening of the shell in a normal state. According to the MTP optical fiber connector, through a dual protection mechanism of automatic stretching of the optical fiber plug and dynamic closing of the protection plate, the end face of the insertion core is effectively prevented from being subjected to mechanical collision and dust pollution. The protection plate is automatically opened when the plug extends out and is automatically closed when the plug retracts back, manual intervention is not needed in the whole process, the reliability problem caused by exposure of the insertion core of a traditional connector is solved, and full-automatic protection is achieved.

The invention is applicable to the technical field of conveying belts, and provides a macromolecular flame-retardant conveying belt which comprises a mounting frame, a transmission roller and a guide roller, and the transmission roller and the guide roller are rotationally mounted on the mounting frame; the conveying belt is arranged on the transmission roller in a sleeving mode and used for conveying materials, the conveying belt makes contact with the guide roller, the conveying belt is composed of upper covering rubber, a bonding layer, a belt core framework and lower covering rubber, and the belt core framework is located between the upper covering rubber and the lower covering rubber and firmly bonded through the bonding layer. According to the high-molecular flame-retardant conveying belt, lump coal with high value and pulverized coal with low value are separated in real time at the conveying front end, value loss caused by mixed transportation is avoided, graded utilization of resources is achieved, and meanwhile through the arrangement of the conveying belt, atomization dust falling, a dust cover, spontaneous combustion monitoring, fixed-point fire extinguishing and the like, the conveying efficiency is improved. And dust pollution and fire risks are effectively reduced, and the working environment is improved.

The invention provides a factory unattended dust suppression method and system, a medium and a product. In the method, a dust suppression system firstly establishes a quantitative corresponding relation between the running state of dust production equipment and the theoretical dust production level, then sets dust monitoring points and the dust production equipment as nodes, and constructs node feature vectors containing environmental parameters and dust related data, so that each node not only can reflect the own environmental attribute, but also can reflect the theoretical dust production level. And direct association with dust can be reflected. Then, the dust suppression system calculates an edge weight through the wind speed, the wind direction and the node distance, the diffusion possibility and strength of the dust among the nodes are reflected, and then the constructed dust diffusion directed graph can visually present the possible propagation path of the dust; and finally, the dust suppression system analyzes the associated information of each node by using the topological structure and node characteristics of the directed graph through the graph neural network, and identifies a dust generation source. According to the method, the dust pollution source is positioned, the problem of blind dust suppression only according to the concentration of the monitoring point is solved, and the dust suppression efficiency is improved.

The invention discloses a self-adaptive intelligent cleaning control system and method for a photovoltaic panel, and relates to the technical field of photovoltaic power generation, and the system comprises an image collection module which is used for dynamically collecting visible light and near-infrared images of the photovoltaic panel; the grade division module is used for realizing self-adaptive division of dust pollution grades through image analysis; the cleaning decision module analyzes and judges whether cleaning is executed or not based on the power generation income and the cleaning cost; and the parameter regulation and control module generates control parameters such as mechanical arm speed and water pressure through deep reinforcement learning. Intelligent and precise control over photovoltaic panel cleaning is achieved, the cleaning efficiency is improved, and the operation and maintenance cost is reduced.

The utility model belongs to the technical field of mobile phone production, and particularly relates to a screen pressing device for mobile phone production, which comprises a workbench, a support column and a top plate, and further comprises a vacuum box, the hydraulic cylinder is fixed on the top surface of the top plate, and a piston rod of the hydraulic cylinder penetrates through the top plate and then is fixedly connected with a vacuum box; the two buffering mechanisms are symmetrically fixed to the top face of the workbench and used for supporting a mobile phone frame and a mobile phone screen; a pressing plate; the driving mechanism is connected to the pressing plate in a drivable mode and used for driving the pressing plate to move; according to the pressing device, the mobile phone screen is pressed in a vacuum environment, electrostatic dust collection and dust pollution can be effectively prevented, and the attaching quality is guaranteed; and through the arranged buffer mechanism, the downward pressure of the pressing plate can be buffered until the telescopic column is completely contracted, unnecessary damage caused by direct rigid impact between the pressing plate and the mobile phone screen is avoided, and the machining safety is guaranteed.

The invention discloses an intelligent monitoring platform and method for construction flying dust, and relates to the technical field of flying dust monitoring data processing, and the platform comprises the steps: traversing a building construction region, laying a plurality of monitoring devices for data collection, and obtaining a plurality of construction monitoring data; determining a flying dust data association network; performing flying dust prediction on the plurality of construction monitoring data to obtain a flying dust prediction result; traversing the building construction area according to the flying dust prediction result for tracing; and optimizing the flying dust treatment scheme, and generating a flying dust treatment optimization scheme to intelligently treat flying dust in the building construction area. The technical problems of low dust pollution monitoring efficiency and insufficient treatment scheme pertinence caused by difficulty in real-time and comprehensive monitoring of a building construction area and incapability of accurately positioning a dust pollution source in the existing building construction dust monitoring treatment are solved, intelligent management of building construction dust treatment is realized, and the construction efficiency is improved. The technical effect of improving the dust pollution monitoring efficiency and the treatment pertinence of the building construction area is achieved.

The invention relates to the technical field of hydraulic machines, in particular to a multi-station rotary workbench powder hydraulic machine and a control method thereof.The multi-station rotary workbench powder hydraulic machine comprises an upper cross beam, a movable cross beam, a lower cross beam and a material pressing table, a material pressing device is arranged between the material pressing table and the movable cross beam, and a material conveying device is arranged on one side of the material pressing device and fixed to the side face of the upper cross beam; the material pressing device comprises a material pressing cylinder; a rotating table indexing mechanism and a cam device are arranged on the material pressing table, and a material jacking cylinder and a guide column are arranged below the material pressing table; a plurality of tooth blocks are arranged on the rotating table indexing mechanism, and a plurality of station bins are evenly arranged in an annular area surrounded by the tooth blocks; the material conveying device comprises a powder storage bin and a conveying pipe; the lower end of the conveying pipe rotationally corresponds to the powder loading station in the station bin, and the demolding station of the station bin rotationally corresponds to the ejection cylinder. The powder hydraulic machine with the multi-station rotary workbench overcomes the defects that the positioning precision is insufficient, the unbalance loading resistance is poor, the dust pollution is serious, and the production efficiency is low.

The invention relates to an automatic filling rubber sheath preforming method and device for rare refractory metal powder. The device comprises a vacuum feeding mechanism, a weighing and metering mechanism, a vibration filling mechanism, an automatic plugging mechanism, a sheath transposition mechanism, a manipulator loading and unloading mechanism and a control system. According to the system, efficient, uniform and sealed filling of tantalum powder is achieved through vacuum material suction, weighing control, filling and compaction at the same time, automatic plugging and sealing and bag sleeve replacement through linkage of a mechanical arm. The control system coordinates sequential operation of all links on the basis of signals of multiple sensors, the powder amount range of a single bag is 6-17 kg, and the control system is matched with rubber bags of multiple specifications such as phi 60 * 1000 mm and the like. According to the method, the powder loading density consistency, the sealing reliability and the production line rhythm are improved, the labor intensity and the dust pollution are remarkably reduced, and the method is suitable for the field of metallurgy preforming of tantalum, alloy powder of tantalum and other metals.

The utility model discloses an automatic sample weighing instrument. The automatic sample weighing instrument comprises a main body, a lofting module, a sampling module, a sample weighing module and a cleaning module, the lofting module and the sampling module are both movably arranged on the main body, and the sample weighing module and the cleaning module are both fixedly arranged on the main body; the lofting module is used for fixing and storing samples; the sampling module is used for extracting the sample stored in the sample placing module and transferring the sample to the sample weighing module, the sampling module comprises a vibration exciter and a sampling mechanism capable of being opened and closed, the vibration exciter is connected with the sampling mechanism, and the vibration exciter can vibrate the sample in the sampling mechanism so as to add the sample into the sample weighing module; the sample weighing module is used for weighing the weight of a sample; the cleaning module is used for cleaning the sampling module. The sampling module of the automatic sample weighing instrument is arranged, so that the sampling mechanism can be closed after a sample is taken, and flying dust pollution in the transfer process is avoided. Moreover, not only can the sample be taken, but also the sample can be transferred and added, so that the automatic sample adding process is simplified, and the sample adding efficiency is improved.

The invention relates to a fully-mechanized face multi-angle blowing-suction purification dust removal system and a dust removal method, and belongs to the technical field of coal mine dust treatment. Comprising a dust concentration sensor arranged on a hydraulic support and a linear dust remover arranged on a hollow interlayer of a chute baffle of the scraper conveyer. The dust concentration sensor detects the dust concentration of the coal face and transmits a signal to the control system, and the control system selectively opens and closes the dust remover at the corresponding position to achieve accurate dust removal. The linear dust remover forms an entrainment effect to suck dust generated by coal cutting of the roller of the coal mining machine, and the dust is purified. And meanwhile, a barrier is formed between the coal mining machine and the pedestrian side in manners of forming an air curtain, a water curtain, a fog gun and the like at the air outlet, so that untreated dust is prevented from diffusing to the pedestrian side for the second time. The device is simple in structure and convenient to mount, solves the problem of serious dust pollution of the fully-mechanized coal mining surface, and realizes source treatment of dust while preventing dust diffusion.

The invention relates to the technical field of metal casting, and particularly discloses an adjustable and controllable cooling clean room which comprises a roller conveying main body, a clean room main body, and a displacement mechanism, a blowing mechanism, a temperature control system and the like which are integrated in the clean room main body. According to the working principle, after being fed into a chamber through a connecting rod type air bag sealing door, a mold is accurately positioned by a displacement mechanism synchronously driven by multiple rollers; the two groups of multi-degree-of-freedom blowing mechanisms are used for spraying uniform cooling airflow to the surface of the metal casting mold by adjusting the angle and the position of a spray head through four spatial axes; the movable dust removal vehicle sucks and removes falling dust in real time, the sensor and the temperature control body are linked to adjust environmental parameters, and waste gas is purified through cooperation of the three-stage filter and the exhaust fan. Through clamping-free conveying, directional dynamic cooling and closed-loop cleaning management, the problems of mold scratching, non-uniform cooling and dust pollution in the traditional technology are systematically solved, and the cooling efficiency and the product yield of the cooling clean room are improved to a certain extent.

Disclosed in the present invention is a truss grain-unloading apparatus in the field of grain warehousing, comprising a truss, and a grain suction mechanism, a grain conveying mechanism, and a controller which are arranged on the truss. The grain suction mechanism comprises a pneumatic conveying apparatus, a grain suction pipe, and a direction adjusting mechanism; the tail end of the grain suction pipe is flexibly connected to a feeding port of the pneumatic conveying apparatus, and the middle of the grain suction pipe is connected to the pneumatic conveying apparatus by means of the direction adjusting mechanism; and the grain conveying mechanism comprises a belt conveyor arranged on the truss. The present invention utilizes the grain suction mechanism and the grain conveying mechanism, which are supported by the truss, to suction and convey grain in a carriage, so that the grain unloading operation is directly preformed above the carriage, thus achieving convenience and quickness; the unloaded grain can be directly conveyed to a subsequent cleaning device from a high position, simplifying a conventional warehousing process; the pneumatic conveying apparatus can reduce dust pollution; and the whole apparatus can achieve highly automated control by means of an image recognition technology and a multi-sensor fusion technology, greatly reducing the labor intensity, and improving the grain unloading efficiency.

The invention discloses a lunar dust protection system for a low-energy particle detector. The lunar dust protection system comprises a protective cover, a nitrogen blowing opening, a pressing device, an unfolding device, a power supply subsystem and a control subsystem, wherein the protective cover and the nitrogen blowing opening are integrally designed; the protective cover covers the head of the sensor and is consistent with the head of the sensor in shape; the nitrogen blowing port blows nitrogen into the sensor in a ground test stage to prevent pollution; the blocking cap is used for blocking before the satellite is launched to prevent dust pollution; when the system is in a protection state, the pressing device presses the protective cover and the head of the sensor, and the protective cover is released through thermal cutting according to an instruction of the control subsystem; the unfolding device is matched with the pressing device to achieve unfolding of the protective cover, and the protective cover is locked after being released to a designated position. The power supply subsystem supplies power to the pressing device according to an instruction of the control subsystem; the control subsystem periodically collects state monitoring parameters and transmits the state monitoring parameters to the load management unit, controls power-on and power-off of the pressing device according to a ground remote control instruction, and executes unfolding operation of the system.

The invention discloses special rolling equipment facilitating additive reducing of aluminum and aluminum alloy. The special rolling equipment comprises an additive reducing structure. The additive reducing structure comprises a reducing die, a lubricating powder guide barrel is arranged in the reducing die, and the end of the reducing die is blocked through a cover plate and used for limiting lubricating powder. Additive materials are evenly coated with lubricating powder after passing through the first feeding hole, the cleaning hole and the second feeding hole. According to the lubricating powder coating device, the rotary spiral blade is matched with the conical feeding hole, so that uniform and continuous coating of lubricating powder is realized, and the problems of coating dead angles and non-uniform thickness existing in a traditional powder coating mode are solved; through a closed circulating powder supply structure, lubricating powder leakage and dust pollution are greatly reduced, and occupational health risks and environmental protection cost are reduced; the coating is leveled in real time through the cleaning holes, drawing fracture and mold abrasion are reduced, and the yield and the production stability are improved; the device is compact in overall structure, convenient to disassemble, assemble and maintain, high in universality and suitable for continuous reducing machining of aluminum and aluminum alloy additional materials of various specifications.

The invention discloses a centrifugal fan with a noise reduction function for the lithium battery industry, and relates to the technical field of centrifugal fans, the centrifugal fan comprises a mounting frame, a damping unit, a cleaning unit, a noise reduction unit and a driving unit, the mounting frame is used for the damping unit, the cleaning unit, the noise reduction unit and the driving unit, and the damping unit is used for reducing vibration of a machine body. The cleaning unit is used for cleaning a filter plate and preventing air volume reduction caused by increase of air resistance, the noise reduction unit is used for reducing noise of an air outlet of the fan, the driving unit is used for providing a power source for the fan, and in the operation working process of the centrifugal fan through the driving unit, a machine body is damped through the damping unit, and the filter plate is cleaned through the cleaning unit. The ventilation quantity is guaranteed, dust pollution is avoided, noise at the air outlet is reduced through the noise reduction unit, and a good working environment is guaranteed.

The invention discloses a curing agent for curing and damming solid waste and a layer-by-layer cofferdam damming process, and relates to the technical field of damming filler devices. The curing agent is characterized in that a guide and discharge device with a guide and regulation effect is arranged on the front side of a preparation device; a reclaimed water device with filtering and flow guiding functions is arranged on the side face of the preparation device, and the industrial solid waste environment-friendly treatment, solidification and accumulation technology is adopted, so that equipment machining automation is achieved; according to the process of stirring industrial solid waste and reclaimed water according to a ratio, adding a curing agent according to a classified ratio of the industrial solid waste, conveying by a pipeline, curing and building a weir, repairing a pool on a pool, forming a central emergency pool, stacking and storing, and greening the solid, the dust pollution after stacking is reduced, the storage capacity can be increased, the service life is prolonged, and the environmental pollution is reduced. The effect after layered solidification and accumulation is similar to that of a terraced field, vegetation greening is carried out after soil covering, and the industry is recovered and improved step by step.

The invention discloses mechanical part laser cutting machining equipment, and relates to the technical field of mechanical part machining. The device comprises a rack, a mounting plate is fixedly connected to the front face of the rack, and a laser cutting machine is fixedly connected to the bottom of the mounting plate; a protection mechanism is arranged on the front face of the laser cutting machine. A gear set is linked with a rotating shaft to drive the protective cover to be opened and closed stably, a guide column is matched with a sliding frame to enable the protective cover to move outwards to avoid collision, an extension rod compresses a spring for buffering during closing, meanwhile, an inner side cleaning pad makes contact friction with the laser cutting head, smoke residues are automatically removed, the cutting head is kept clean, the cutting precision is improved, and the service life of equipment is prolonged. The direction of the fan is intelligently switched along with the state of the protective cover, the protective cover is semi-opened during cutting, the fan obliquely adsorbs smoke dust in a cutting area, interference is avoided, the fan is vertically upward during closing, the fan cooperates with the heat conduction plate and the cooling fins to form a forced convection air channel, heat dissipation is accelerated, and the problems of cutting smoke dust pollution and equipment overheating are solved.

The invention discloses application of cordyceps javanica Bd01 and a dispersible oil suspending agent thereof to prevention and control of spodoptera frugiperda, and relates to the technical field of biology. The research finds that the cordyceps javanica Bd01 has a strong infection lethal effect on larvae of spodoptera frugiperda at all ages, the pupation rate and eclosion rate of the larvae can be remarkably reduced, and the breeding cycle of pests can be effectively blocked. The invention further develops a dispersible oil suspending agent, and the suspending rate is effectively improved through formula optimization. The dosage form takes soybean oil as a dispersion medium, does not contain harmful solvents such as methylbenzene, is free of dust pollution and is friendly to operators and the environment, and ascorbic acid is added to improve the ultraviolet resistance of spores and prolong the effective period of the pesticide effect. In addition, the preparation also has a certain control effect on caffeinidae, is wide in application scene, provides a new scheme for green control of spodoptera frugiperda, solves the problems of chemical pesticide resistance and residue, and accords with the development requirements of green agriculture.

The utility model relates to a novel clean rainwater recycling pool which comprises a sedimentation pool communicated with initial rainwater, a mud pump is arranged at the bottom of the sedimentation pool, and an outlet pipeline of the mud pump is communicated with the outside; the oil separation tank is separated from the sedimentation tank through a partition plate which is longitudinally arranged, a first electric valve and a submersible sewage pump are arranged at the bottom of the side wall of the oil separation tank, and an outlet pipeline of the submersible sewage pump is communicated with the outside; the clean water tank is a closed tank and communicated with the oil separation tank through a first electric valve, a submersible pump is arranged at the bottom of the clean water tank, and an outlet pipeline of the submersible pump is communicated with the outside. Sediment in initial rainwater can be settled, greasy dirt in the initial rainwater floats upwards to the surface layer, lower clear liquid in the rainwater can be discharged into the clear water pool, finally clean rainwater is stored, and the clean rainwater is prevented from being polluted by dust due to the closed design. The sedimentation tank, the oil separation tank and the clean water tank are of an integrated structure, the construction cost of the rainwater tank is saved, meanwhile, the structure is tighter, and the occupied space is small.

This invention discloses a method and system for dust suppression during the loading of dry bulk cargo on railway lines. The method includes: if loading operations are detected to have commenced on the main railway line, determining the area to be suppressed based on on-site loading data; acquiring environmental information corresponding to the area to be suppressed, including wind direction information; determining the items to be loaded based on the on-site loading data, and determining the corresponding moisture content of the items; determining a control strategy for a spray system based on the wind direction information, moisture content, and the area to be suppressed, and adjusting the operating parameters of the spray system based on the control strategy to suppress dust during the loading process. This invention achieves precise control of dust pollution during railway loading, overcoming the limitations of traditional fixed dust suppression methods, and significantly improving pollution prevention efficiency and resource utilization effectiveness.

The utility model relates to the technical field of hygrothermograph protectors, in particular to a protective device for a hygrothermograph, which comprises the hygrothermograph, a protector mechanism arranged outside the hygrothermograph and a gauze protection mechanism mounted on the protector mechanism. The protective tool mechanism comprises a boosting screw rod, a threaded sleeve movably installed outside the boosting screw rod and a protective shell installed outside the threaded sleeve. The two protective shells which are symmetrically distributed are arranged on the two sides of the hygrothermograph, the gauze element on the winding rod can be flatly spread and expanded along with outward constant-speed stretching of the two protective shells, and the two expanded gauze elements can be attached to the window, used for detecting the environment temperature and humidity, of the back face of the hygrothermograph. At the moment, the device can be subjected to dustproof protection in a random standing state or when being mounted on a wall, so that the sensor is prevented from being polluted by dust.

The invention provides an assembly type fireproof transformation structure of an existing log beam structure floor slab, which is installed on the basis of an existing log beam. The fireproof partition board is laid above the existing log beam, the fireproof coating layer is coated on the surface of the existing log beam, the suspenders are fixed below the existing log beam at intervals along the existing log beam, the keel structure is connected to the bottoms of the suspenders, and the fireproof board is mounted below the keel structure. No additional floor load is added; a quadruple fireproof protection system is formed, and the fire endurance is greatly improved; the core components are prefabricated in factories and assembled through on-site dry-method operation; zero-damage protection of the precious original structure is achieved, the construction speed is high, and noise and dust pollution are small; and the method is particularly suitable for reconstruction of brick-wood structure buildings needing to protect historical features, is also suitable for fire safety upgrading of various old houses, and has extremely high social benefits and economic benefits.

The utility model belongs to the field of environment-friendly dust removal equipment, and particularly relates to a small-sized dust remover provided with a three-stage air filter, which comprises a small-sized dust remover, a secondary air filter arranged on the back of the small-sized dust remover, a three-stage air filter arranged on the side surface of the small-sized dust remover, a first filter element is arranged in the first shell, and the first air inlet is connected with an air outlet of a silencing pipe of the small dust remover through a ventilation pipe; the third-stage air filter comprises a second shell, a second filter element is arranged in the second shell, and the second air inlet is connected with the first air outlet through a ventilation pipe elbow. The two-stage and three-stage dust removal device realizes two-stage and three-stage dust removal, can be used for in-situ dust collection and three-stage dust removal of'clean workshops' or individual or several dust pollution source points of the'clean workshops', and solves the problem that the space height is limited by the height of the workshops.

The utility model relates to the technical field of reinforcing steel bar planting equipment, and discloses a reinforcing steel bar planting device which comprises a connecting cylinder, the top of the connecting cylinder is fixedly connected with a handle, the inner wall of the connecting cylinder is fixedly connected with a mounting block, the top of the mounting block is provided with an air pump, the air inlet end of the air pump penetrates out of the mounting block, and the air inlet end of the air pump is connected with the handle. A detachable cover plate is arranged on the surface of the connecting cylinder; the cleaning module is arranged on the surface of the connecting cylinder, and the cleaning module is used for cleaning the steel bar planting holes; by arranging the collecting assembly, the air pump and the connecting cylinder, external air can be guided into the planting holes under the action of the air pump, dust disintegrating slag is carried into the connecting cylinder, and in the process, the dust disintegrating slag can be collected into the connecting cylinder under the action of the collecting assembly; and dust and disintegrating slag are prevented from falling back into the hole under the influence of gravity in the extraction process, the cleaning effect is improved, and dust raising pollution caused by a traditional hole washing mode is avoided through the mode.