124 results about "Road dust" patented technology

The invention relates to the technical field of urban road cleaning, in particular to a smart city monitoring system based on image recognition, which comprises a data acquisition module used for acquiring a road monitoring video of an urban environmental sanitation operation area in real time, and a video analysis module used for analyzing a vehicle area and a road area and extracting a road image; the image analysis module is used for analyzing the road cleaning parameters and the road surface dirt parameters; the data storage module is used for storing the road cleaning parameters and analyzing the road cleanliness according to the stored road cleaning parameters; the vehicle acquisition module is used for periodically acquiring operation information during operation of the sanitation vehicle, and the accumulated dust analysis module is used for analyzing the road accumulated dust level according to the operation information; the operation analysis module is used for evaluating the environmental sanitation operation quality; and the cleaning prompting module is used for prompting the sanitation vehicle to perform cleaning operation. According to the invention, accurate supervision of urban road cleaning work is realized.

The invention discloses an underway monitoring device for the particle size spectrum emission potential of road dust, and the device comprises a particulate matter collection unit which comprises two sampling pipelines, a dust sampling port of one sampling pipeline is located behind a front right tire, and the particulate matter collection unit is used for collecting suspended pavement particulate matters of rotating tires in the running process of a motor vehicle; a background point sampling port of the other sampling pipeline is located at the top of the experimental vehicle, and a particulate matter sample in environment background air is detected to be compared with pavement particulate matters collected by the raised dust sampling port; the vacuum pump provides power for the sampling head; the particle size spectrum monitoring unit is used for detecting particle size spectrum concentration of particles in air; the auxiliary unit is used for providing meteorological parameters of weather; the data acquisition and transmission unit is used for data acquisition and transmission. The invention provides an efficient, safe and rapid method for establishing the particle size spectrum of the road dust particles.

The invention discloses an energy-saving and environment-friendly road dust absorption device for building civil engineering, and relates to the field of engineering construction dust control, the energy-saving and environment-friendly road dust absorption device comprises an absorption box body and a plurality of filter cartridges arranged in the absorption box body, and a cleaning mechanism comprises a plugging plate, a cleaning piece, a first driving piece, a second driving piece and a third driving piece. The supporting seat can rotate around the axis of the supporting seat so that the filter cartridges can sequentially rotate to the cleaning mechanism, the first driving part is used for driving the blocking plate to move in the axial direction of the filter cartridges so as to seal openings in the bottoms of the filter cartridges, and the second driving part is used for driving the cleaning part to move in the radial direction of the filter cartridges so as to abut against the outer surfaces of the filter cartridges. The third driving part is used for driving the filter cartridge to rotate around the axis of the filter cartridge; by means of the multiple filter cartridges arranged in the annular array mode and driving the filter cartridges to enter the cleaning station in sequence through intermittent rotation of the supporting base, online alternate cleaning is achieved, it is guaranteed that dust collection operation is uninterrupted, and the overall efficiency is greatly improved.

The invention discloses an opencast coal mine truck transportation road dust suppressant for a high-temperature dry environment and a preparation method of the opencast coal mine truck transportation road dust suppressant. The dust suppressant is prepared by mixing 20-30% by mass of glucose, 0.05-0.15% by mass of a penetrant, 1.5-2.5% by mass of a water-retaining agent, 1.5-2.5% by mass of a moisture absorbent and the balance of water. The dust suppressant is an environment-friendly material, the main material glucose is a monosaccharide which is most widely distributed and most important in nature, and the dust suppressant has the characteristics of being non-toxic, odorless, green, environment-friendly, wide in source and application and the like. The dust suppressant integrates the functions of wetting, moisture absorption, water retention and the like, can keep dust on a road surface transported by a large mine truck of an open pit coal mine wet and effectively suppress flying dust on the road surface, is simple in preparation process, low in material cost, green and environment-friendly in material and wide in material source, and has good flowability and feasibility. The dust suppressant is applied to the open pit coal mine end slope transportation road, the environment quality and the traffic safety of the open pit coal mine can be effectively guaranteed, and the manpower and material resource investment of environment maintenance is reduced.

The invention discloses a dust fall device and method for road construction, and relates to the technical field of road dust fall, the dust fall device comprises a water supply tank, a mounting frame is fixedly connected to the side wall of the water supply tank, a mounting groove is formed in the side wall of the mounting frame in a penetrating manner, a fixing block is fixedly connected to the top of the water supply tank, and a first sliding groove is formed in the side wall of the fixing block in a penetrating manner; the top of the water supply tank is fixedly connected with a connecting base, and the center of the connecting base is fixedly connected with a rotating shaft. According to the dust falling device for road construction, a sliding frame horizontally reciprocates along the inner wall of a mounting groove, so that a ball can drive a water storage tank to horizontally swing, meanwhile, a cam can drive a connecting block to vertically reciprocate, and the ball can drive the water storage tank to vertically swing, so that the material spraying direction of a spray head continuously moves; the spraying range of the device is expanded, and the situation that due to the fact that the spraying head is fixed, spraying dead angles occur on the device, and the spraying effect is poor is prevented.

The invention relates to the technical field of environmental pollution treatment and particularly provides a dust suppressant as well as a preparation method and application thereof. In order to achieve the purpose, the dust suppressant provided by the invention is prepared from the following raw material components: sodium lignin sulfonate extracted based on lotus stems, deionized water, a first cross-linking agent, a second cross-linking agent, an aqueous solution of organic acid, a first initiator and a second initiator. Wherein the sodium lignin sulfonate is extracted from lotus stems. Through a specific molecular modification technology, sodium lignin sulfonate is extracted and prepared from lotus stems, and the novel dust suppressant applied to roads is prepared through graft copolymerization. The dust suppressant has multiple properties, the structure of the dust suppressant is beneficial to suppression of a dust resuspension phenomenon, and the dust suppressant has adsorption and adhesion effects on dust and is particularly suitable for road dust suppression.

The utility model discloses an efficient intermittent processing device for a mine road dust suppressant. The efficient intermittent processing device comprises a stirring tank, an A agent stirring tank and a liquid outlet pipe, an agent A conveying pipe is connected between the stirring tank and the agent A stirring tank; the agent A stirring tank is positioned outside the stirring tank and is far away from the liquid outlet pipe; one end of the liquid outlet pipe extends into the bottom of the stirring tank, and the other end of the liquid outlet pipe is connected with a dust suppressant spreading truck; and the bottom surface of the stirring tank is inclined towards one side where the liquid outlet pipe is located. The processing device disclosed by the utility model can reduce the residue of the dust suppressant in the stirring tank, so that the waste of the dust suppressant is avoided. Meanwhile, the machining device can achieve intermittent production, and the production cost is remarkably reduced.

The invention provides an expressway lane cleaning system based on an air-ground amphibious unmanned aerial vehicle. The system comprises an air-ground amphibious cleaning unmanned aerial vehicle set, a detection unmanned aerial vehicle, an accompanying type mobile supply vehicle and a control center. The air-ground amphibious unmanned aerial vehicle has the characteristics of two operation modes of ground running and air flying, and a collaborative cleaning scheduling strategy is designed: during conventional operation, the amphibious unmanned aerial vehicle keeps the ground running mode to perform dust collection and water spraying so as to reduce energy consumption and maintain operation stability; when it is detected that the unmanned aerial vehicle gives an early warning to a rear vehicle, too much road dust or insufficient resources, the control center instructs the related unmanned aerial vehicle to be switched to an air flight mode in real time, and air avoidance, high-altitude dust suppression or rapid station returning supply operation is executed. The problems that a traditional cleaning vehicle hinders traffic and a common unmanned aerial vehicle is insufficient in endurance are effectively solved, and high efficiency and intelligence of lane cleaning are achieved.

The present invention relates to a method, device and computer-readable storage medium for monitoring road dust pollution. The method comprises obtaining a measured value of road surface dust concentration and a measured value of air dust concentration at a certain speed; calculating a first difference between the measured value of road surface dust concentration and the measured value of air dust concentration; comparing the first difference with a second difference corresponding to the same speed in a road dust standard, and determining the road dust pollution according to the difference between the first difference and the second difference. The road dust standard comprises calculating the first difference between road surface dust concentration and air dust concentration corresponding to different speeds according to the road surface dust concentration, air dust concentration and speed corresponding to different speeds in historical data, fitting a curve with the first difference and the speed, and determining the road dust standard according to the curve. Through the scheme of the present invention, the problem that the urban road pollution evaluation method cannot provide correct guidance for environmental protection and sanitation operations is solved.

The invention discloses a road dust removal device for road repair, and belongs to the technical field of road repair, the road dust removal device comprises a mounting disc, outer supporting rods are uniformly hinged to the outer side of the mounting disc along the axis, a vertical rod is vertically and slidably mounted in the middle of the mounting disc, and inner supporting rods are hinged between the inner sides of the outer supporting rods and the outer side of the vertical rod; the outer side of the outer supporting rod is covered with a polyester fabric cover. The polyester fabric cover is matched with the annular rubber soft plate for use, during operation, the annular rubber soft plate is tightly attached to the ground, the annular rubber soft plate and the polyester fabric cover jointly form a relatively-closed dust removal space, and dust and gravel generated by high-pressure airflow purging are limited in a closed area and prevented from being diffused to the external environment; dust-containing air flow in the closed space is filtered by the filter bag and then discharged, and dust is intercepted and collected by the filter bag, so that flying dust diffusion is completely eradicated, accidental damage to surrounding vehicles, pedestrians and construction equipment due to splashing of fine stones is also prevented, and the safety of the working environment is remarkably improved.

The present disclosure provides a data processing method, device, electronic device and storage medium, the method comprising: obtaining a target vehicle speed of a target vehicle; obtaining an occurrence rate of road dust related accidents; determining a reduction range of the target vehicle speed based on the occurrence rate, the reduction range being positively correlated with the occurrence rate; and controlling the target vehicle speed based on the reduction range to control the possibility of occurrence of the road dust related accidents. The embodiments of the present disclosure can improve the control efficiency of road dust related accidents.

1. Name of the design product: hair dryer. 2. Use of the design product: the design product is used for cleaning leaves, road dust, garbage, snow and the like. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

This application provides an automatic road marking drawing device and method, including a drawing vehicle. A material bin is provided in the middle of the top surface of the drawing vehicle. A ground-contact dust collection frame is connected to one side of the front end of the drawing vehicle. The ground-contact dust collection frame slides elastically and vertically under the drawing vehicle. A spray box is fixed in the middle of the side of the drawing vehicle connected to the ground-contact dust collection frame. The spray nozzle of the spray box is located at the center of the ground-contact dust collection frame. A ventilation component is provided inside the end of the drawing vehicle connected to the ground-contact dust collection frame. This invention can adheringly absorb dust on the road surface directly in front of the spray box, completely removing road dust and allowing the road marking spray material to fully fuse with the road surface, thereby ensuring the adhesion strength of the road marking material. At the same time, it can achieve dust-free emission or recycling, and is used to supply high-pressure clean air to the spray box for spraying the marking material, avoiding blockage inside the spray box.

The invention discloses a sewage sedimentation tank for a concrete mixing station, which comprises a first-stage sedimentation tank, a second-stage sedimentation tank, a third-stage sedimentation tank and a fourth-stage sedimentation tank which are arranged step by step, the first-stage sedimentation tank is communicated with the second-stage sedimentation tank through an overflow port, and the third-stage sedimentation tank is communicated with the fourth-stage sedimentation tank through an overflow port; the bottom wall of the primary sedimentation tank is a slope ramp, and an overflow port between the primary sedimentation tank and the secondary sedimentation tank is positioned at the top end of the slope ramp; a first stirring device is arranged on the secondary sedimentation tank, a filter press is arranged on one side of the secondary sedimentation tank, the filter press is communicated with the secondary sedimentation tank through a water suction pipe and a water return pipe, and a flocculant adding structure is arranged on the secondary sedimentation tank; a second stirring device is arranged on the third-stage sedimentation tank; and the second-stage sedimentation tank, the third-stage sedimentation tank and the fourth-stage sedimentation tank are all of polygonal structures. According to the invention, the cleaning frequency of the sedimentation tank can be reduced, the water quality index is improved, the treatment is compliant, and the to-be-discharged sewage can be discharged or used for site cleaning or road dust falling.

The invention belongs to the technical field of dust collection motor sweepers, and particularly relates to a dust collection motor sweeper self-circulation sweeping device which comprises a compartment, a circulation sweeping mechanism is installed in the compartment, and a discharging mechanism is installed on one side of the top of the compartment. Through the cooperation of the structure and the circulating cleaning mechanism, an open dust collection and exhaust system is changed into a closed self-circulating purification system, and circulating filtration can intercept dust and impurities, prevent an air duct, a fan and a suction port from being blocked, ensure continuous and smooth airflow, prevent suction force from being attenuated along with operation time, filter out gravel, sharp particles and fiber impurities, and improve the working efficiency. Abrasion and clamping stagnation of a fan impeller, a motor and a bearing are reduced, the failure rate and maintenance cost are reduced, dust-containing airflow circulates in a closed loop and is repeatedly filtered, contaminated air is not discharged, road surface dust raising and tail gas dust pollution are greatly reduced, airflow is recycled in the device, it is not needed to continuously suck a large amount of external fresh air and then discharge the fresh air, the fan load is more stable, and the service life of the fan is prolonged. And the overall energy consumption is lower, and the noise is lower.

The invention relates to a road dust falling device, which comprises: a base, which is laid along a road and is provided with a groove at the top; the grating cover body is arranged above the groove in a covering mode to form a dust accumulation space, and attachments falling off from tires when the vehicle runs can be collected; the supporting assembly is supported between the groove and the grille cover body; the two ramps are arranged at the positions, close to the two ends of the base, of the road correspondingly, and vehicles can drive onto the base or drive away from the base through the corresponding ramps; and the cleaning assembly is arranged in the base and the ramp and used for cleaning and discharging attachments collected in the base. The base and the grating cover body form a layered running platform, the upper layer of the grating cover body allows a vehicle to run, the dust accumulation space of the lower layer is supported by the supporting assembly and can collect attachments falling from vehicle tires, and the road surface dust source is effectively reduced. And through flushing of the cleaning assembly, cleaning and discharging of attachments in the dust accumulation space are achieved, and accumulation of the attachments is effectively prevented.

The utility model discloses a caterpillar water spraying vehicle, which relates to the technical field of water spraying vehicles, and comprises a caterpillar vehicle body and a water storage tank, a bottom plate is arranged at the top of the caterpillar vehicle body, guide rails are arranged on the bottom plate, the water storage tank is arranged between the two guide rails, and a mounting frame is arranged at the top of the water storage tank. A supporting column is arranged in the center of the mounting frame, a cross beam is arranged at the top of the supporting column, fixing rods are arranged on the two sides of the outer portion of the cross beam, an adjusting plate is rotatably connected to one ends of the fixing rods, a plurality of spraying plates are arranged on the adjusting plate, a plurality of spraying openings are formed in the spraying plates, a water inlet pipe is arranged on the adjusting plate, and a water outlet pipe is arranged on the water inlet pipe. The water storage tank is installed on the crawler body, the problem of road dust pollution is solved, the adjusting mechanism drives the adjusting plates on the two sides of the cross beam to turn over up and down, the inclination angle of the spraying plate can be adjusted conveniently, the coverage area of the water spraying vehicle is larger, the dust settling effect is better, and the air quality is improved.

The utility model relates to the technical field of dust removal devices, and discloses an assembly type dust removal device for municipal road maintenance, which comprises a road dust removal box body and a filter screen body, a dust removal mechanism is arranged on the road dust removal box body, the dust removal mechanism comprises a high-pressure water pump, and a high-pressure output pipe is fixedly sleeved in the output end of the left end of the high-pressure water pump. The right end of the high-pressure water pump is fixedly sleeved with a high-pressure water pipe. A worker firstly connects the high-pressure connecting pipe to a water source and then starts the high-pressure water pump, the high-pressure water pump carries out output to convey the water source in the high-pressure water pipe into the high-pressure output pipe, the high-pressure output pipe conveys the water source into the high-pressure water storage box, and then dust is sprayed through the high-pressure spray head, so that the dust falling effect is achieved. And dust is filtered through the arranged filter screen body, a worker can pull out the filter screen body by holding a pull handle, so that the effect of conveniently cleaning dust is achieved, and the device is higher in practicability.

The invention discloses road raised dust and dirt collaborative removal negative pressure cleaning equipment which comprises a negative pressure suction box, four sets of lifting type mounting frames, a swing type raised dust assembly, a dirt separation mechanism, a sewage storage box, a dirt storage box and a dust falling plate. The negative pressure suction box is mounted at the front end of a road cleaning vehicle through the four sets of lifting type mounting frames; the swing type dust raising assembly is installed at the bottom of the front end of the negative pressure suction box, the dirt separation mechanism is arranged in the negative pressure suction box, the sewage storage box and the dirt storage box are symmetrically installed at the tail of the negative pressure suction box, the two sets of dust falling plates are symmetrically installed in the middle of the negative pressure suction box up and down, and the front end of the negative pressure suction box is further provided with the visualization assembly. The visual assembly is connected with a controller through a circuit. According to the designed vehicle-mounted negative pressure cleaning equipment, dynamic visual observation, adjustable negative pressure suction and dirt separation and storage treatment can be conducted on dust and dirt on a road, and the road cleaning effect is greatly improved.

The application discloses a kind of integrated system of rainwater collection, green belt spraying and air dust fall, it is related to rainwater utilization technical field, including water-collecting well, the circumferential outer wall of water-collecting well is respectively fixedly connected with first drain pipe and second drain pipe, the one end of first drain pipe away from water-collecting well is fixedly connected with first water pump, the other end of first water pump is fixedly connected with second water supply pipe, the circumferential outer wall of second water supply pipe is fixedly connected with first connecting pipe of equidistant distribution, the one end of first connecting pipe away from second water supply pipe is fixedly connected with atomizing nozzle.The application realizes rainwater resource efficient utilization, simultaneously solves three big problems of urban stormwater runoff, road dust, green irrigation, significantly improves the comprehensive benefit of urban infrastructure and ecological environment quality.

This utility model discloses a road dust suppression spraying device, belonging to the field of road management technology, which solves the problems of poor dust suppression effect and high water cost on existing roads. The spraying device includes a double-arm lamp post, with symmetrically arranged mounting rods on both sides of the upper end of the lamp post. A water delivery pipe is provided on one side of the lamp post, and a spray pipe connected to the upper end of the water delivery pipe is provided on the mounting rod. The spray pipe is equipped with multiple multi-head low-pressure atomizing nozzles with different spray angles. The lower end of the water delivery pipe is connected to a main water supply pipe, which is connected to a water supply pump station. A control component for controlling the opening and closing of the pipeline is provided between the water delivery pipe and the main water supply pipe, and the control component is electrically connected to an environmental monitoring station. This utility model's road dust suppression spraying device effectively improves the dust suppression effect, solves the problems of small operating area and large water droplets caused by fog cannons, and has the characteristics of wide applicability and strong practicality.

The utility model discloses a road dust-proof device, which belongs to the technical field of road municipal dust prevention and comprises a dust-proof net, support frames for fixing the dust-proof net are fixedly mounted on two sides of the dust-proof net, and three groups of air holes for slowing down air speed are formed in an inner cavity of the dust-proof net. A dust suppression structure capable of flexibly adjusting the spraying angle is installed at the top of each set of air holes, the dust suppression structures are fixedly connected with the outer wall of the dust screen, a plurality of groove holes are formed in the dust screen, and a dust prevention structure used for assisting in dust falling is fixedly installed in an inner cavity of each groove hole. A rotating pipe drives a rotating nozzle to continuously perform back-and-forth left-and-right swinging operation, so that the spraying range of the device is effectively increased, the dust falling coverage area is expanded, dust falling treatment can be performed on a road more comprehensively, dust falling missing dead angles are reduced, and the overall dust falling efficiency is improved; a wind indicator is matched to drive the rotating nozzle to adjust the angle in real time according to the wind direction; and the water mist can be accurately sprayed to an area needing dust fall.

The utility model provides an intelligent road dust suppression dynamic simulation experiment device. The intelligent road dust suppression dynamic simulation experiment device comprises a control cabinet, a dust sensor, a photoelectric sensor, a limiting sensor, a motor, a display unit and a cloud platform which are respectively connected with the control cabinet, and an electronic application terminal connected with the cloud platform, the control cabinet comprises a frequency converter, a central control unit connected with the frequency converter, a switch connected with the central control unit, and an intelligent gateway connected with the switch. According to the intelligent road dust suppression dynamic simulation experiment device provided by the utility model, through integration of various sensors, remote monitoring and control, motor fault detection and design of safety performance, efficient management of the experiment device is realized, and the stability and the accuracy of the system are improved.

The invention belongs to the technical field of mine road surface dust raising control, and particularly relates to a mine truck watering device and a road surface dust raising control method.The mine truck watering device comprises a truck body, a water tank, a first drainage pipe, a second drainage pipe, a nozzle assembly, a measuring system and a control system; an electric pressurizing device for adjusting the water flow pressure is arranged on the second drainage pipe; the nozzle assembly is used for spraying water to the rear and side faces of the vehicle body. The measuring system is used for detecting the road width in real time. The method comprises the following steps: monitoring the moisture content of a soil surface layer through a soil moisture sensor, comparing the moisture content with a preset threshold value, and then controlling a mine truck watering device to carry out watering operation according to a set watering process according to a comparison result. The water sprinkling device can be automatically and electrically controlled in the whole process, the labor intensity of workers is relieved, the working efficiency of the water sprinkling device is improved, and water sprinkling operation can be accurately carried out.

The present invention discloses a distributed road dust monitoring system, comprising: at least one monitoring terminal unit, a monitoring center and a dispatching center; wherein at least one monitoring terminal unit is used to monitor the road dust concentration according to a preset monitoring period; the monitoring center is connected to at least one monitoring terminal unit, and is used to analyze the data sent by the monitoring terminal unit and plan the operation mode according to the analysis result; the dispatching center is connected to the monitoring center, and is used to complete the cleaning operation according to the operation mode planned by the monitoring center. The distributed road dust monitoring system of the present invention has a reasonable layout, strong real-time performance, cost saving and high working efficiency.

The application provides an environment-friendly watering device for a road green belt, which is arranged in a shrubbery of a flower bed. The environment-friendly watering device comprises a lamp post, two baffles, two drip irrigation sprinkling mechanisms and a house type support base. The lamp post is vertically arranged in the flower bed, and two house type support bases are symmetrically arranged on two sides of the lamp post. The drip irrigation sprinkling mechanism is connected with the house type support base in linkage, and the chute extends to the lamp post along the arc direction of the house type support base. The environment-friendly watering device for the road green belt is matched with the lamp post, the two baffles, the two drip irrigation sprinkling mechanisms and the house type support base. The environment-friendly watering device can realize irrigation by using a drip irrigation mode through laying a water pipe in the shrubbery. Water resource is greatly saved, and in order to facilitate the requirement of road dust suppression and dust reduction, the water pipe can be climbed to the lamp post to realize high place spraying, which greatly facilitates the use of personnel.

The utility model belongs to the technical field of marked line spraying, and discloses a pavement marked line spraying machine which comprises a spraying mechanism, a spraying mechanism, a spraying mechanism and a spraying mechanism, the spraying mechanism comprises a movable cart, a material tank used for storing paint is installed above the cart, and a paint spraying head used for spraying the paint out to achieve marked lines is arranged on one side of the material tank; the cleaning mechanism comprises a front frame, an air pipe is installed in the front of the inner side of the front frame, and a plurality of sets of dust blowing nozzles used for blowing out air to clean dust on the road surface are obliquely installed in the front of the air pipe. The dust blowing nozzle blows dust and sundries on the road surface, the flushing nozzle removes stains, the road surface is dried through hot air, after cleaning is completed, the coating nozzle sprays the marking line immediately, and by means of the coherent operation mode of blowing, flushing, drying and spraying, rapid connection of cleaning and marking line construction is achieved, the construction efficiency is improved, and the marking line spraying quality is guaranteed.

The utility model relates to a spraying device for dust falling. The utility model is suitable for the technical field of road dust fall. The technical problem to be solved by the utility model is to provide the spraying device for dust falling. According to the technical scheme, the spraying device for dust falling comprises a base, a spraying device body and a spraying device body, the steering adjusting assembly is rotationally mounted on the base and can rotate around the axis of the steering adjusting assembly; the mounting frame is fixedly connected to the steering platform of the steering adjusting assembly and can rotate along with the steering platform; the angle adjusting assembly is provided with an adjusting plate, the adjusting plate is rotationally connected to the top of the side wall of the mounting frame, and the adjusting plate can adjust the included angle between the adjusting plate and the side wall of the mounting frame; the water supply assembly is mounted on the mounting frame; the spraying assembly is mounted on the side wall of the mounting frame and the adjusting plate, the water inlet end of the spraying assembly communicates with the water outlet end of the water supply assembly, the spraying direction and the spraying range of the spraying assembly are adjusted through the steering adjusting assembly, and the spraying angle of the spraying assembly on the adjusting plate is adjusted through the angle adjusting assembly.

This invention relates to the field of road dust suppression technology, specifically to a bio-based dust suppressant that can be used for road reinforcement. Based on 100% solid content, it contains the following components in the following weight ratio: 100 parts xylose mother liquor and 3-50 parts polyamine crosslinking agent; wherein the xylose mother liquor contains 20%-70% solids by weight, with the remainder being water; wherein the solids contain ≥50% reducing sugars by weight, including D-xylose, L-arabinose, D-glucose, and D-galactose, and the xylose content in the solids is ≥20%. The dust suppressant obtained by this invention uses a large amount of waste xylose mother liquor, a byproduct of the sugar industry. This product is a renewable resource and a low-carbon renewable product. Furthermore, the dust suppressant obtained by this invention not only has dust suppression function but also good compressive strength and water resistance, and can be used as a soil stabilizer. Applying the dust suppressant of this invention to roads can produce a pavement system with excellent overall performance.

The utility model discloses a hand-push type road environment governance dust fall device, which belongs to the technical field of road dust fall treatment and comprises a first vehicle bottom plate and a second vehicle bottom plate which are detachably connected. Moving wheels are installed at the four corners of the lower surface of the first vehicle bottom plate and one side of the lower surface of the second vehicle bottom plate, and universal wheels are installed on the other side of the lower surface of the second vehicle bottom plate. The first vehicle bottom plate and the second vehicle bottom plate are matched for use, the first vehicle bottom plate is reserved at the entrance of a road when the vehicle is used for dust falling on a narrow road, the second vehicle bottom plate is matched with a handrail frame to achieve double-hand pushing, and the second vehicle bottom plate is matched with a bevel gear, a rotating shaft, a rotating cylinder, a belt wheel and a belt to drive a reciprocating lead screw to rotate in the walking process; therefore, the swing arm is driven to swing up and down in a reciprocating mode through the hinge arm, multi-angle water spraying and dust falling treatment is achieved, and the water spraying and dust falling device is suitable for water spraying and dust falling treatment in a narrow range.