4333 results about "Dust particles" patented technology

The invention discloses an engineering vehicle multi-area environment control system based on AI, and particularly relates to the technical field of engineering vehicle environment control. Humidity, electric field, air pressure and dust multi-mode sensing arrays are arranged in multiple areas of an engineering vehicle, dust particle deposition distribution time sequence characteristics are extracted, and a deposition acceleration coefficient and a humidity response coefficient are calculated; calculating a dust deposition risk coefficient, comparing the dust deposition risk coefficient with a preset value, and marking a region exceeding a threshold value as a region in a dust deposition abnormal state; analyzing a deposition trend based on a time sequence prediction model, inputting environmental parameters, and predicting a dust deposition velocity curve of each area of the engineering vehicle in a future set time; according to the method, the static electricity, humidity, air pressure and dust coupling deposition risk is assessed in a prospective mode, a collaborative intervention strategy is triggered through a dynamic early warning threshold function, the effect of rapidly restraining the risk is achieved, and the problem that traditional single-parameter monitoring lags behind, and ventilation efficiency is suddenly reduced due to the fact that a coupling mechanism cannot be captured is effectively solved.

The invention provides a desert photovoltaic sand damage dynamic monitoring method and system based on an unmanned aerial vehicle, and the method comprises the steps: obtaining the flying dust data of a photovoltaic power station region, generating an initial data set, and enabling the flying dust data to be collected through a multi-mode sensor carried by the unmanned aerial vehicle; performing multi-modal data fusion processing on the initial data set to obtain a dust feature matrix, the dust feature matrix being used for representing dust reflectivity, terrain elevation and wind speed correlation features; calculating migration probability distribution of the flying dust particles based on the sand and dust characteristic matrix, wherein the migration probability distribution is used for representing spatio-temporal evolution laws of the particles with different particle sizes; a three-dimensional dynamic sand and dust concentration field model is generated according to the migration probability distribution, a sand damage dynamic monitoring result is output based on the three-dimensional dynamic sand and dust concentration field model, and the sand damage dynamic monitoring result comprises deposition density distribution and an erosion risk area. By adopting the method, the photovoltaic sand damage of the desert can be accurately and dynamically monitored with high timeliness.

In one aspect the invention relates to a filter system (100) for one or more braking devices (200) of a vehicle (600A, 600B), the filter system comprising: a suction device (110) configured to generate an airflow (112) in a vicinity of the one or more braking devices; a filter element (120) for filtering brake dust particles generated by the one or more braking devices; an airflow channel (130) positioned to allow the airflow generated by the suction device through the filter element; a controller (140) for operating the suction device; and a processor (150) arranged in data communication with the controller, the processor configured to obtain an operating data (161, 162) of the vehicle; determine a prognosis of a braking event of the vehicle based on the operating data as input; and select a control strategy (800, 810, 900, 950) from a plurality of control strategies based on the operating data, the control strategy associated with a plurality of operation states (701, 702, 703, 704, 705); wherein the control strategy is different from another control strategy of the plurality of control strategies; and wherein the processor is configured to generate a control data to the controller indicative of an operation state of the suction device. In a further aspect the invention relates to a method (1100) of operating a filter system (100).

The invention relates to the technical field of vacuum coating, in particular to a vacuum coating machine capable of improving coating purity, which comprises a bearing frame and a coating cavity mounted in the bearing frame, and the coating cavity is of an inverted conical structure; a rotary driving rod is mounted in the middle of the upper part of the coating cavity in a penetrating manner, and a non-contact transmission assembly is mounted above a main mounting rod, so that friction caused by contact is avoided; the interior of the lower portion of the bearing frame is connected with the evaporation source carrying table through a rotary lifting control mechanism. According to the vacuum coating machine capable of improving the coating purity, the cleanliness of a coating area can be improved through the non-contact transmission assembly, so that the coating purity and the product performance can be further improved, airflow generated by pressure difference can be reduced through the arrangement of the hollow interlayer groove, and the situation that the purity and the adhesive force of a formed film are affected due to the fact that tiny dust particles are raised is avoided; therefore, the cleanliness of the coating area can be further improved, and the coating purity is further improved.

The invention discloses a sand and dust vertical flux high-precision inversion method based on a laser radar. The method comprises the following steps: acquiring multi-wavelength back scattering and polarization information by using a 355 nm, 532 nm and 1064 nm three-wavelength polarization laser radar system; constructing a five-dimensional optical feature vector space, and combining a support vector machine classifier to realize automatic identification of dust particles; a variational data assimilation technology is adopted to fuse radar observation and numerical forecasting information to invert a three-dimensional wind field; inverting sand and dust mass concentration vertical distribution based on the corrected particle spectrum distribution model; flux calculation and uncertainty quantization are realized through adaptive weighted fusion and a Monte Carlo method; the method has the characteristics of high temporal-spatial resolution, high precision, strong adaptability and the like, and can be widely applied to the fields of weather forecast, environment monitoring, climate research and the like.

The invention discloses a dust collecting device for producing protective clothing and treating dust, and relates to the technical field of dust collecting devices, the dust collecting device comprises a pre-dust-collecting chamber shell and a second combined flow guiding piece, the upper end of the left side of the pre-dust-collecting chamber shell is connected with an air inlet pipeline, and the lower end of the right side of the pre-dust-collecting chamber shell is connected with an air outlet pipeline; the second combined flow guide part is arranged between the air inlet pipeline and the air outlet pipeline, and the second combined flow guide part is composed of a rectangular outer frame, four second flow guide plates, an angle and distance adjusting mechanism and the like; the dust collector has multiple advantages, the burden of the filter bag can be relieved through the dust pre-collection chamber shell, the first combined flow guide part can flexibly change the included angle between the first flow guide plate and the center axis of the air inlet pipeline by means of the first electric push cylinder according to the flow and concentration of dust-containing air, and the second combined flow guide part can flexibly change the included angle between the first flow guide plate and the center axis of the air inlet pipeline according to the size and concentration of dust particles. The inclination angles of the four second flow guide plates are synchronously adjusted through the angle adjusting mechanism, and the distance between the second flow guide plates is adjusted in a self-adaptive mode through the distance adjusting mechanism.

The invention discloses an intelligent self-adaptive cleaning system and method for a photovoltaic module, and mainly solves the problems that the cleaning effect of a photovoltaic module cleaning system on stains (such as bird droppings and oil stains) with strong adhesive force and fine dust particles is limited, and it is difficult to ensure that the surface of the module keeps good cleanliness all the time. The cleaning system comprises an environment sensing module used for detecting the cleaning state of the photovoltaic module, an intelligent cleaning module connected with the environment sensing module and used for executing the cleaning function, and self-adaptive control connected with the environment sensing module and used for controlling the intelligent cleaning module. And the energy recovery module is connected with the intelligent cleaning module and is used for realizing energy recovery and feeding back power supply to the environment sensing module. By means of the design, the multi-sensor fusion environment sensing technology and the intelligent cleaning technology are combined, the stain type and the pollution degree can be more accurately recognized, a targeted cleaning mode is adopted, and compared with a traditional cleaning technology, the cleaning effect is remarkably improved.

The invention belongs to the technical field of coal cutter maintenance, and particularly relates to laser cutting equipment for coal cutter maintenance, the laser cutting equipment comprises a mounting seat and a control panel arranged on the upper side wall of the mounting seat, the upper side wall of the mounting seat is fixedly connected with a PLC, and the upper side wall of the mounting seat is fixedly connected with a fixing frame; the side wall of the fixing frame is fixedly connected with a vertical electric push rod, and the moving end of the vertical electric push rod penetrates through the fixing frame. In the process of cutting and maintaining the coal mining machine by the laser cutting equipment, dust particles attached to an optical component can be automatically cleaned after the optical component of the laser cutting equipment is detected to be blocked by the dust particles, so that the dust particles are prevented from blocking and scattering part of laser beams, and the laser cutting equipment is prevented from being damaged. And meanwhile, the slag adhering phenomenon caused by blocking and scattering of laser beams on the surface of the part is automatically removed, and the appearance quality of the cut part is guaranteed.

The invention provides a watering cart for municipal greening engineering, and belongs to the technical field of municipal greening watering carts. The watering cart for municipal greening engineering comprises a cart body, a water storage tank and a watering mechanism, the water storage tank is mounted on the surface of the cart body, a mounting box is mounted on the surface of the cart body, and the watering mechanism is mounted on the surface of the cart body and comprises a first rotating shaft, a second watering pipe, a water pump and a three-way valve. By arranging the watering mechanism, water output by the water pump can be shunted through a three-way valve, one part of water is atomized, the other part of water is mixed with fertilizer and then sprayed on the surfaces of green plants, the spraying effect is improved, an atomizing nozzle can atomize water into tiny water drops, more uniform water distribution can be achieved through air propagation, and the water content is increased. According to the dust removal device, the water covering range is enlarged, water drop concentration or water waste is avoided, atomized water mist can be combined with dust particles through tiny water drops in air, dust in the air can be settled, and the dust removal function is achieved.

The invention relates to the technical field of aviation turboshaft engines, and provides a method for evaluating the influence of sand dust erosive wear on the performance of a turboshaft engine, which comprises the following steps: calculating the amount of sand dust sucked into the turboshaft engine; calculating and solving an air flow field in the air compressor channel and a movement track of sand dust particles by adopting computational fluid mechanics software; establishing a mathematical model of erosive wear of the air compressor blade of the turboshaft engine caused by sand dust; on the basis of the motion trail and the mathematical model, the blade profile of the blade after abrasion is obtained, the airflow field in the air compressor channel after abrasion is further calculated and solved, and the reduction amount of the efficiency of the air compressor after sand dust erosion abrasion is obtained; and on the basis of the reduction amount of the compressor efficiency, engine overall performance calculation software is adopted to calculate and evaluate the engine performance parameter change condition. According to the method, a mathematical model of compressor blade abrasion is constructed, the turbine shaft engine performance degradation evaluation method is provided, and quantitative analysis and evaluation of turbine shaft engine performance degradation in the sand and dust environment are achieved.

The invention belongs to the technical field of fire detection, and particularly discloses a smoke sensor labyrinth optimization design and dust pollution resistance method, which comprises the following steps: detecting corresponding smoke and dust fusion particles and water vapor particles in an air detection area through a signal transmitting device; water vapor particles are screened to weaken smoke alarm triggered by mistake caused by the water vapor particles, a differential signal processing technology is adopted to distinguish and identify fusion particles, meanwhile, the fusion particles are introduced into a labyrinth measuring cavity, the concentration of smoke and dust is measured in the labyrinth measuring cavity, and the detection stability is enhanced; the width of a labyrinth channel in a labyrinth measuring cavity is automatically adjusted according to the smoke concentration to carry out space division of smoke particles and dust particles, so that the adaptability of the detector to a complex environment is improved; the smoke concentration in the labyrinth measuring cavity is subjected to fire early warning judgment, the cleaning device additionally arranged in the labyrinth measuring cavity is started according to the smoke concentration and the dust concentration for cleaning treatment, and the detection continuity is improved.

The invention relates to the technical field of shield tunneling machine man cabin monitoring, in particular to a man cabin monitoring system based on an optic neural network, which is characterized in that light scattering prior is constructed based on dust particle size, dust concentration and relative positions of a camera and light by collecting original images in a shield tunneling machine man cabin and data of dust particle size, concentration, temperature and smoke concentration; the transmissivity is inversed in combination with a monocular depth estimation network, and the image is further corrected in a cross-scale manner through a residual pyramid compensation network, so that a dust removal image sequence suitable for a complex light scattering environment is obtained; and then accurate identification of abnormal staying of personnel and tool missing is realized based on a three-dimensional space-time diagram convolutional network and a causal attention mechanism, and a Transform model is utilized to fuse vision, temperature and smoke concentration data to realize rapid and accurate prediction of fire and in-cabin leakage risks.

The present application belongs to the technical field of sweeping robots, and in particular, relates to a sweeping robot. A sweeping robot comprises: a robot body, on which a mounting groove is provided; a dust box, which is provided in the mounting groove and is used to store the inhaled dust; a filter, which is provided in the box body and is used to filter the dust; wherein the filter is detachably provided in the dust box. The beneficial effect of the present application is that during the cleaning process, the sweeping robot sucks the dust on the ground into the dust box through suction, thereby keeping the ground clean. The filter is provided inside the dust box to filter the dust particles in the inhaled air. The filter is detachable, which is convenient for the user to use and maintain. When the filter needs to be cleaned or replaced because of excessive dust accumulation, the user can easily take it out of the dust box for cleaning or replacement, which not only simplifies the maintenance steps, but also improves the user's experience.

The invention discloses a cyclone separator for collecting powder coating, and relates to the technical field of cyclone separators. Comprising a barrel, the outer side of the barrel is fixedly connected with a support, the outer side of the barrel is fixedly connected with a feeding pipe, a conical barrel is fixedly connected to the bottom of the barrel, a spiral plate is fixedly connected to the inner wall of the conical barrel, a spiral groove is formed in the inner wall of the conical barrel, a round hole is formed in the middle of the top of the barrel, and a supporting column is fixedly connected to the top of the barrel; the number of the supporting columns is multiple, the multiple supporting columns are evenly distributed with the discharging assembly as the center, the tops of the supporting columns are fixedly connected with a bearing plate, and the top of the bearing plate is fixedly connected with the motor. According to the cyclone separator for collecting the powder coating, a definite flowing path is provided for dust particles by arranging the spiral groove and the spiral flow guide groove, so that dust can move towards the dust discharging opening more smoothly, the accumulation and backmixing phenomena of the dust on the inner wall of the conical barrel are reduced, and the dust discharging efficiency and stability are improved.

The invention relates to an intelligent induction type cable quick connector plugging method, which comprises the steps of removing noise and errors in dust particle data through a signal processing module, constructing a first data set by adopting a Kalman filtering algorithm in combination with the processed dust particle data and ambient air pressure data, and storing the first data set according to a predefined format; by acquiring an output result of the particle swarm optimization model, analyzing to obtain a motion trend and concentration change of dust, monitoring an insulation state of the cable joint in real time through an insulation state sensor of the dust removal instrument, and constructing a second data set in combination with the motion trend and concentration change of dust particles and the insulation state of the cable joint; obtaining the working intensity of the dust removal instrument through a fuzzy logic controller in the dust removal instrument; according to the insulation state of the cable joint, judging whether the insulation performance of the cable joint reaches a safety standard; and collecting real-time plugging data in the plugging process, and evaluating the accuracy and safety of the plugging operation by analyzing the real-time plugging data.

The invention discloses an automatic discharging device of a welding line, belongs to the technical field of advanced manufacturing, and aims to solve the problems that an existing device is low in installation efficiency, and the safety risk of a working place is increased due to reduction of the suction force of a suction cup. The automatic discharging device of the welding line comprises a vertical frame, a conveying belt is arranged on the vertical frame, a transferring device is arranged on the vertical frame in a sliding mode, a driving mechanism can drive the transferring device to move in the transverse axis direction of the vertical frame, the transferring device is located above the conveying belt and the containing platform, and a controller is arranged in the transferring device. Assembling and disassembling can be rapidly completed, the overhauling efficiency and the working efficiency are improved, meanwhile, air can be compressed to blow the surfaces of products, fine dust particles on the surfaces of the products are effectively removed, it is ensured that the suction cups and the surfaces of the products are well sealed, and then the adsorption effect is improved.

The invention discloses an online intelligent monitoring device for dynamic dust particles and floating bacteria in biological cleaning engineering, and relates to the technical field of intelligent monitoring. The device comprises a device body, information modules are arranged on the left and right sides of the inner wall of the device body, an electric sliding rail is arranged at the top of the inner wall of the device body, and a circular groove limiting plate is arranged in the device body through a spring; an anti-interference device is arranged in the electric sliding rail, anti-erosion devices are arranged on the left side and the right side of the anti-interference device, a difference device is arranged below the anti-interference device, the anti-interference device comprises an electric telescopic rod, and the top of the fixed end of the electric telescopic rod is installed in the electric sliding rail in a sliding mode. Different from a traditional detection device which only extracts air at a specified height through horizontal movement for detection, the device solves the problem that the content of dust particles and the content of planktonic bacteria in air at different heights are different, and the detection range is expanded to obtain more accurate monitoring data.

In one aspect the invention relates to a filter system (100) for one or more braking devices (200) of a vehicle, the filter system comprising: a suction device (110) configured to generate an airflow (112) in a vicinity of the one or more braking devices; a filter element (120) for filtering brake dust particles generated by the one or more braking devices; an airflow channel (130) positioned to allow the airflow generated by the suction device through the filter element; a controller (140) for operating the suction device; and at least one processor (150) arranged in data communication with the controller, the processor configured to receive at least one of a vehicle operation data (162) and an environmental data (164) as inputs, and determine a prognosis of a braking event of the vehicle; wherein the at least one processor is configured to generate a control data (152), the control data indicative of an operation state of the suction device based on the prognosis of the braking event of the vehicle. In a further aspect the invention relates to a method (900) of operating a filter system (100).

Laser cutting equipment for precision equipment sheet metal machining relates to the field of sheet metal machining and comprises a laser cutting head, a cutting table mechanism, a gantry hoisting mechanism and a cutting cleaning mechanism, and the cutting cleaning mechanism and the laser cutting head are both arranged on the gantry hoisting mechanism. The gantry hoisting mechanism comprises a transverse guide rail and a vertical guide rail which are arranged on the cutting table mechanism, the cutting and cleaning mechanism comprises a flow guide cover and a turbofan assembly arranged on the inner side of the flow guide cover, and the turbofan assembly is used for cleaning the laser cutting part. The surface of the sheet metal part of the cutting part of the laser cutting head is cleaned, in the moving process of the laser cutting head, the turbofan assembly on the inner side of the flow guide cover rotates and grinds the surface of the sheet metal part, residual oil stains, dust particles and rust are reduced, residues on the surface of the sheet metal part are reduced, the turbofan assembly rotates to rub the surface of the sheet metal part, and the surface of the sheet metal part is protected. Dirt on the surface of the sheet metal part is cleaned in time, the cutting face is prevented from being rough, and the cutting precision is improved.

The invention relates to the technical field of pulverized coal separation, in particular to a cyclone separator, a pulverized coal separation system and a cyclone separator structure optimization method.The cyclone separator comprises an air inlet unit which comprises an air inlet assembly and a separation assembly connected with the air inlet assembly; and the discharge unit comprises an exhaust assembly arranged on the inner side of the separation assembly and a dust discharge assembly arranged at the bottom of the separation assembly. The cyclone separator has the beneficial effects that by arranging the spiral channel, the centrifugal force after dust-containing gas enters can be increased, the dust particle separation efficiency is improved, the longitudinal circulation phenomenon at the top of the separator can be effectively avoided, the influence of a top ash ring is relieved, and mutual interference of airflow in adjacent inner and outer rotational flows is avoided; and the number of particles of large-particle-size dust entering the exhaust pipe through longitudinal circulation is reduced, the flow field can be stabilized, the separation performance is improved, and the separation efficiency of small-particle-size dust is improved.

The utility model relates to the technical field of vacuum valves, in particular to a two-section type rectangular valve which comprises a valve body, a valve plate is arranged on the valve body, a first driving assembly used for driving the valve plate to move is arranged on the valve body, and a second driving piece used for driving the valve plate to move is further arranged on the valve body. The first driving assembly and the second driving piece drive the valve plate to move in the direction perpendicular to each other, and a control assembly used for controlling whether the second driving piece can conduct driving or not is arranged on the valve body. The present application has an effect of reducing the generation of dust particles when forming a vacuum partition.

The invention discloses a traveling wave electric curtain lunar dust conveying device based on three-dimensional electrodes, and relates to the field of lunar dust conveying. In order to solve the problems of low utilization rate of an electric field, easy abrasion of equipment and high energy consumption in the existing lunar dust transportation work in the prior art, the technical scheme provided by the invention is as follows: the traveling wave electric curtain lunar dust transportation device based on the three-dimensional electrode comprises a substrate; the wedge-shaped microstructure is arranged on the upper surface of the substrate, and the wedge-shaped microstructure is in a triangular prism shape; and the electrodes are arranged on the side walls of the wedge-shaped microstructures and used for generating electrodes and transporting lunar dust particles. The invention also provides a traveling wave electric curtain lunar dust transportation method based on the three-dimensional electrode, the method is realized based on the device, and the method comprises the following steps: collecting the motion state of lunar dust particles; a step of adjusting a driving voltage according to the motion state; and driving the electrode according to the adjusted driving voltage. The lunar dust conveying device is suitable for lunar dust conveying work.

The invention discloses a precise ammonia spraying system suitable for SNCR denitration, and relates to the technical field of ammonia spraying devices for SNCR denitration, the precise ammonia spraying system comprises a top cover fixedly mounted at the top of a boiler cyclone separator barrel, and a reciprocating pushing mechanism is mounted on the outer wall, located on the outer side of a spray gun, of the boiler cyclone separator barrel; and supporting cylinders which are distributed at equal intervals are fixed on the inner wall, close to the spray gun, of the boiler cyclone separator cylinder body. According to the precise ammonia spraying system suitable for SNCR denitration, the sleeve used for dispersing ammonia sprayed by the spray gun can rapidly rotate and transversely move, dead angles in the spraying process can be reduced, the ammonia is evenly distributed in the boiler cyclone separator barrel, mixing of the ammonia and flue gas is promoted, the working efficiency of the ammonia spraying system is improved, and the service life of the ammonia spraying system is prolonged. Moreover, the sleeve can generate slight vibration during rotation, dust particles in the through holes are vibrated off, the service life of the sleeve is prolonged, meanwhile, gas can be helped to form finer fog drops during spraying, ammonia gas can be better diffused conveniently, and the flue gas reaction efficiency is improved.

A filter system for one or more braking devices of a vehicle, the filter system comprising: a suction device configured to generate an airflow in a vicinity of the one or more braking devices; a filter element for filtering brake dust particles generated by the one or more braking devices; an airflow channel positioned to allow the airflow generated by the suction device through the filter element; a controller for operating the suction device; and a processor arranged in data communication with the controller, the processor configured to obtain at least one of an environmental data and a driving mode data as input, and determine an operation state of the suction device as output; wherein the processor is configured to generate a control data, the control data indicative of the operation state of the suction device.

The invention discloses a gas purification device for machining, and relates to the technical field of gas purification, the gas purification device comprises a barrel shell, a round cover is fixedly mounted on the top surface of the barrel shell, a gas suction hood penetrates through and is fixedly mounted at the bottom of the left side of the barrel shell, and a gas suction pump penetrates through and is fixedly mounted at the top of the right side of the barrel shell; a screen frame is fixedly installed at the bottom end in the barrel shell, the top face of the screen frame is fixedly connected with the top end in a round cover, an activated carbon plate is fixedly installed at the bottom end in the barrel shell, a heat dissipation shell is fixedly installed on the top face of the round cover, a servo motor is fixedly installed at the top end in the heat dissipation shell, and a screw rod is rotationally installed on the top face of the round cover in a penetrating mode. Dust particles and metal particles on the screen face of the screen frame are scraped off through the scraping plate, and therefore the problem that the air purification effect is poor due to the fact that a large number of dust particles and metal particles are attached to the screen face of the screen frame is solved.

The invention relates to the technical field of hydrological monitoring equipment, and discloses unattended hydrological monitoring equipment which comprises a monitoring box, the bottom of the monitoring box is fixedly connected with a fixed seat, and the bottom of the fixed seat is fixedly connected with a floating base; a side extending plate which horizontally moves in a reciprocating mode can drive a side cleaning brush to conduct cleaning along the surface of a side photovoltaic panel, the cleanliness of the surface of the side photovoltaic panel is improved, the situation that the surface of the side photovoltaic panel is covered with dust particles is reduced, and a rotating side transmission fan can generate wind power to blow to the surface of the side photovoltaic panel, so that the surface of the side photovoltaic panel is cleaned. Dust generated after the surface of the side photovoltaic panel is cleaned is blown away, meanwhile, the air circulation performance of the surface of the side photovoltaic panel is improved, the situation of corrosion caused by moisture accumulation generated in the side photovoltaic panel is reduced, the surface of the floating base is cleaned through the continuously rotating bottom cleaning brush, the cleanliness of the surface of the floating base is improved, and the service life of the floating base is prolonged. The condition that the surface of the floating base is attached or corroded by algae is reduced, and the use stability of the floating base is improved.

The invention relates to the related technical field of pollution treatment, in particular to a mineral separation pollution treatment device which comprises a filter box and a dustproof filter screen installed in the filter box, a filter cartridge for filtering particle dust is arranged in the filter box, and a twisting cleaning assembly for scraping the periphery of the filter cartridge is arranged in the filter box. The twisting cleaning assembly comprises a fixed rotating seat, a front rotating seat and a rear rotating seat, and a twisting cleaning ring arranged on the twisting cleaning assembly twists and cleans dust particles blocked on the periphery of the filter cartridge up and down. The L-shaped cleaning rod further drives the twisting cleaning ring to perform rotary cleaning around the outer wall of the filter cartridge, so that the cleaning strength is remarkably enhanced, the cleaning coverage and the cleaning effect on the arc-shaped surface of the periphery of the filter cartridge are more effectively improved, the labor intensity of workers is reduced, and the cleaning effect of the filter cartridge is improved.

The invention relates to the technical field of dust removal equipment, in particular to a steel part casting dust removal device which comprises a dust removal box, an upper box is fixedly mounted at the top of the dust removal box, a dust hopper is fixedly mounted at the bottom of the dust removal box, a dust discharge assembly is arranged at the bottom of the dust hopper, and an air outlet pipe is fixedly mounted on one side of the upper box. A dust-gas inlet pipe is fixedly mounted on one side of the dust hopper, a plurality of dust removal assemblies are arranged at the bottom of the upper box body and extend into the dust removal box body, and a pulse assembly used for blowing airflow into the dust removal assemblies is fixedly mounted in the upper box body; the dust removal device has the beneficial effects that by arranging the dust removal assembly and the torsion assembly, the torsion part of the filter bag can be unfolded, meanwhile, the contracted part of the filter bag can be expanded, and particulate matter attached to the surface of the filter bag can fall off again in the unfolding and expanding process of the filter bag; dust particles attached to the outside of the filter bag are completely separated in cooperation with blowing, and the dust removal effect of the filter bag is effectively guaranteed.

The invention discloses a metal dust risk dynamic assessment and grading early warning method based on the Internet of Things, and particularly relates to the technical field of metal dust monitoring. Multi-type sensor nodes are deployed on an industrial site, metal dust concentration, environmental parameters and equipment state information are collected, after edge calculation preprocessing, dust particle dynamic behavior characteristics and high-frequency signal abnormal characteristics are extracted, and the dust particle dynamic behavior characteristics and the high-frequency signal abnormal characteristics are calculated based on the change trend and the coupling relation. A judgment model is constructed to recognize the reliability state of the sensor under different interference working conditions in real time, when it is detected that the sensor has a potential misalignment risk, the system can automatically conduct data correction or redundant path switching and dynamically update an early warning result, and the method effectively improves the dust monitoring stability and early warning accuracy under the complex working conditions and improves the safety of dust monitoring. And the identification and prevention capability of the system on the silent potential safety hazard is obviously enhanced.

The invention discloses a Roots blower with a filtering structure, and particularly relates to the technical field of Roots blowers, the Roots blower comprises a base, a main motor is fixedly mounted at the upper end of the base, a Roots blower body is fixedly mounted at the upper end of the base, and vibration separation assemblies are jointly arranged at the front part and the lower end of the inner surface of a shell; and a wet-type filtering assembly is arranged at the rear part of the inner surface of the shell. According to the Roots blower with the filtering structure, by arranging the liquid film mechanism, the cloth bag device and the plugging mechanism, air can be filtered in a dry-wet combined mode, so that large-particle or small-particle dust and impurities in the air can be effectively removed, the filtering capacity and effect are improved, and the service life of the Roots blower is prolonged. The formed liquid film can efficiently capture dust in the air, the gas-liquid contact area is increased, so that dust particles are more easily in contact with the liquid film and are captured, and the capture efficiency of fine particulate matters including tiny dust particles can be remarkably improved.