222 results about "Road dust" patented technology

The invention discloses a road dust suppressant, which is prepared by mixing and blending 0.1-2.0% of water-soluble high molecular polymer, 20-50% of moisture absorption humectant, 1.0-5.0% of preservative, 0.5-5.0% of penetrating agent and the balance water. The road dust suppressant is a dynamic dust-proof and dust-suppressing liquid product which combines functions of wetting, bonding, permeating, adsorbing moisture and the like into a whole and has extremely strong pressurization-resistant function. The road dust suppressant has the advantages of obvious anti-evaporation performance and good water retention hygroscopicity, and dust on the road surface can be coagulated and is unlikely to fly. The road dust suppressant disclosed by the invention not only can be applied to road dust suppressing but also can be simultaneously used for the aspects, such as the mine exploration and transportation environment, storage yards of coal ash, coal and other ores, and the treatments of municipal construction earthwork dust raise.

A dust testing facility for static dust testing of a motor vehicle, wherein actual road dust is utilized, which dust is fully recirculated and reused, and wherein the dust testing of the motor vehicle suitably approximates a dynamic road dust test of the motor vehicle. The dust testing facility includes a dust testing chamber which receive thereinside a motor vehicle to be tested and is integrated with four major component systems: an air supply system, a dust supply system, a dust spray system interfaced with the dust supply system, and a dust recapture system interfaced with the air supply and dust supply systems. The dust testing chamber preferably includes, for purposes of dust testing of a motor vehicle, a leak detection system selectively interfaced with a motor vehicle being dust tested.

The ecological road dust inhibitor is solution comprising carboxymethyl starch 0.10-3.00 %, sodium silicate 0.01-2.50 % and propanetriol 0.01-2.00 %. Before being used, the three components are dissolved in water through stirring. The present invention has the combined effects of coagulation, moisture absorption and water maintenance to produce dust inhibiting. It has no toxic side effect and corrosion and can be degraded naturally after its dust inhibiting period, can improve water and soil environment and produce no pollution. It is suitable for inhibiting dust in mine road as well as city road, square, building site, etc.

The invention discloses a road dust inhibitor and a preparation method thereof. The road dust inhibitor is characterized in that the raw materials of the road dust inhibitor comprises surface active agents, stabilizers, hydrophilic agents, thickeners, anti-freezing auxiliaries, antibacterial agents and water. The preparation method comprises, firstly, adding an appropriate amount of water into a reactor; secondly, adding the surface active agents and the stabilizers in; thirdly, after the surface active agents and the stabilizers are fully dissolved, slowly adding the hydrophilic agents and the thickeners in and stirring to achieve dissolution; fourthly, adding the anti-freezing auxiliaries and the antibacterial agents in; lastly, adding the residue water in until reaching a designated concentration. By means of the surface active agent, the road dust inhibitor can form a layer of isolating film on the contact surface between dust and air, and the isolating film has high water carry capacities and adhesive performance; by adding a small amount of salt, the road dust inhibitor obtain certain anti-freezing and antibacterial effects.

The present invention is directed to an improvement in dust control methods used at strip mines. The invention is based upon super absorbent polymer used in combination with water. The polymer is premixed with water and is applied to the roads by use of a conventional truck capable of dispensing water. The super absorbent polymer provides water retention and can be re-hydrated by rain, dew, or additional tanker water. The method disclosed includes the step of: adding about 15 gallons of dry super absorbent water swellable polymer to each 2000 gallons of water placed within the water tanker, stirring the polymer into the water to form a mixture, and distributing the mixture over strip mining roads.

The invention discloses a road surface retention dust load measuring device and measuring method. The road surface retention dust load measuring device comprises a first sampling pipeline, a first flow velocity measuring device, a first particle concentration measuring device, a second flow velocity measuring device, a first gas conveying device, a second sampling pipeline, a second gas conveying device, a third flow velocity measuring device and a second particle concentration measuring device. The surface retention dust load measuring device comprises the first particle concentration measuring device which is used for measuring the concentration of particles raised after driving of a vehicle tire on a road surface and a second particle concentration measuring device which is used for measuring concentration of articles in the background air, the road dust load is calculated through a formula in combination with a measuring result of the first particle concentration measuring device and the second particle concentration measuring device, and accordingly the road dust load measuring device can quickly measure the road surface dust load in real time compared with a measuring device in the prior art.

The invention discloses a garden road dust clearing device. The garden road dust clearing device comprises a bottom plate, a bracket, a dust falling cavity and a cylinder body; the bracket is fixedlymounted at the upper end of the bottom plate, a motor is mounted on the inner side of the bracket, the output end of the motor is fixedly connected with a rotating shaft, and a bevel gear A is fixedlymounted on the rotating shaft and engaged with a bevel gear B fixedly mounted at the left end of a stirring shaft; and the stirring shaft penetrates through a dust falling box and simultaneously penetrates through the vertical end of the right side of the bracket and is fixedly connected with an incomplete bevel gear, and stirring bars are symmetrically on the stirring shaft of the inner side ofthe dust falling box. The garden road dust clearing device is novel in design, water in the dust falling box is stirred through rotating of the arranged stirring bars, mixing of dust airflow and clearwater is facilitated, the efficiency and effect of dust being adsorbed by the clear water are improved, and the dust is prevented from escaping again with the airflow; and an arranged driving gear drives a dust sucking hood to swing back and forth through a driven gear, the dust sucking range of the dust sucking hood is enlarged accordingly, and the dust sucking efficiency is improved.

A purpose of the invention is to research and develop a composite road flying dust wetting material with characteristics of convenient use, long effective action time and low cost. The invention provides a wetting type dust suppressant for road flying dust, and a preparation method thereof, and belongs to the field of road flying dust control. The wetting type dust suppressant is prepared from thefollowing raw material components in percentage by mass: 0.1-2% of sodium lactate, 0.1-6% of Span-80, 0.1-3% of glycerol, 0.1-5% of a binder, 0.5-5% of urea, 1-20% of CaCl2, 0.1-1% of a surfactant and the balance of water. According to the wetting type dust suppressant disclosed by the invention, the humectant, the moisture absorbent, the surfactant and the binder are combined, so that a certainwater content of a road surface is continuously kept, the road dust suppression effect is ensured, the material strength is high, and the action effect of the dust suppressant is improved.

The invention belongs to the technical field of illuminating lamps, and in particular relates to a modularized, replaceable and easily maintainable LED illumination lamp which comprises an LED basic module, a lamp base and a lamp shell, wherein step surfaces of the LED basic module and the lamp base are connected and firmly locked, and the sides of the lamp shell and the lamp base are hinged to ensure that the lamp shell can turn over. Heat radiating fins are thoroughly distributed on the external surface of the LED basic module, an aluminum base plate is welded on the internal surface of theLED basic module and provided with an optical device, and the lower plane of the LED basic module is provided with sealing glass. A waterproof joint of the LED basic module is connected with a waterproof joint of an LED driving power supply or a controller. The invention has convenient maintenance, only needs to replace the damaged module when a light source is partially damaged, solves the problem that the whole lamp has to be replaced if the light source is partially damaged, and effectively saves the cost through the modularized concept. The invention enlarges the average heat radiating area of the LED light source, can effectively prevent bird manure or road dust and the like from depositing on the heat radiating fins in the application of road illumination, and is helpful for heat radiation.

The invention discloses a road dust fall watering cart for municipal administration environmental sanitation, and relates to the technical field of municipal machines. The road dust fall watering cartcomprises a mobile frame, a water tank is arranged in the mobile frame, a machine case is fixed on the mobile frame, a gas collecting cover is arranged on the top of the machine case, a dust fall spraying mechanism communicating with the water tank is arranged in the gas collecting cover, a steering mechanism comprises a rotating shaft vertically penetrating the water tank, the lower end of the rotating shaft is in transmission connection with a transverse reciprocating mechanism, the two ends of the transverse reciprocating mechanism are provided with pavement spraying mechanisms. By means of the road dust fall watering cart, dust flying in air can be dropped through water spraying by means of the dust fall spraying mechanism; the steering mechanism can realize swing of the gas collecting cover, water spraying for dust falling at different positions is achieved; the gas collecting cover can be subjected to elevation adjustment, and the spray dust falling scope is greatly increased; in addition, the pavement spraying mechanisms can fully clean the road surfaces under driving of the reciprocating mechanism; and a spraying disc can realize reciprocating movement, and the water spraying dust falling range of the road surfaces is greatly improved.

The invention aims to solve the problem of poor wettability of a bonding type dust suppressant, provides a bonding type dust suppressant for road dust and a preparation method of the bonding type dustsuppressant, and belongs to the technical field of dust suppressants. The bonding type dust suppressant is prepared from the following raw material components in percentage by mass: 0.1-1% of a humectant, 2-5% of polyvinyl alcohol, 0.5-9% of adhesive, 0.5-4.5% of a surfactant and the balance of water. The dust suppressant is environment-friendly in component, good in wettability and small in loss, and the dust suppression effect reaches 90% or above.

The invention relates to an intelligent repairing construction system for a bridge concrete road dust emission road surface. The intelligent repairing construction system comprises a movable bottom board. A repairing device is installed at the rear end of the movable bottom board. A paving and reeling device is installed at the right end of the movable bottom board. The repairing device comprisesa repairing bottom board installed on the movable bottom board. Two repairing adjustment mechanisms are installed at the rear end of the repairing bottom board and symmetrically located on the left side and the right side of the repairing bottom board. A repairing feeding mechanism is installed at the rear ends of the two repairing adjustment mechanisms. A repairing execution mechanism is installed between the two repairing adjustment mechanisms. By the adoption of the system, the problems that in the existing concrete road repairing construction process, the road needs to be manually coated with concrete paste through tools multiple times, scratching and leveling treatment is repeatedly conducted, and protection cloth needs to be manually paved for repairing the concrete road surface aresolved, and the function of concrete road dust emission systematized intelligent construction can be achieved.

A method and device for detecting, differentiating from background and providing partial identification (i.e., classification) for biological particles found in aerosols or surface dust. The method is based on the phenomenon that luminescent excitation-emission (EEM) graphs of microorganisms obtained before and after perturbation by irradiation with ultraviolet light show characteristic patterns which differ according to the type of particle. For example, Bacillus endospores may be distinguished from vegetative bacteria, and gram positive vegetative bacteria may be distinguished from gram negative bacteria, and all these may be distinguished from many types of background particles, e.g. house dust, road dust, and pollen.

The invention relates to a motor vehicle capable of collecting road dust raised by itself, belongs to the field of motor vehicle road raising dust pollution treatment, and can perform trailing type collection and cleaning on the road dust raised by itself. The motor vehicle at least comprises a power system and a travelling security system, and has complete purpose functions and normal use performances. The motor vehicle is characterized in that a raising dust collecting device is arranged on the motor vehicle, a filtration and/or adsorption dust removal method is applied by the raising dust collecting device, and the collection of dust raised by the motor vehicle on a travelling road surface is realized, so that the pollution of the raising dust of the motor vehicle to environmental air is reduced. The principle of the motor vehicle disclosed by the invention is suitable for newly manufactured motor vehicles, is also suitable for the transformation of conventional motor vehicles, and can enable general motor vehicles to have a self purging function of the raising dust on the roads, so that the motor vehicle participates in the raising dust pollution treatment, limits and defects of conventional environmental sanitation force in the aspect of cleaning the raising dust on the roads are effectively made up, and the motor vehicle has positive effects on reducing the discharge of dust and haze and treating atmospheric pollution.

The invention relates to brushing equipment, in particular to road dust-removal brushing equipment for municipal engineering. The road dust-removal brushing equipment for municipal engineering aims atachieving the technical purposes that roads are brushed completely, automatic water spraying can be achieved, and small-particle impurities on the road surfaces can be removed. The road dust-removalbrushing equipment for municipal engineering comprises a first mounting plate, first support rods, universal wheels, handles, a second support rod, a second mounting plate, a sliding rail, pulleys, arack and the like; the first support rods are left and right symmetrically arranged at the front and rear portions of the bottom of the first mounting plate, and the universal wheels are arranged at the bottoms of the first support rods. According to the equipment, water in a frame body is quickly and conveniently sprayed out through a piston and then discharged through a water outlet pipe for quickly flushing the road surfaces, the trouble of manually spraying water by workers is solved, and the human-friendly design is presented; through a wiping ball, impurities which are attached to the road surfaces and are difficult to remove are completely and conveniently cleaned away, and the effect of improving the cleaning capability of the equipment is achieved.

The invention discloses a simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5). The system comprises a road dust simulation system, a road sprinkling system and a road dust collecting and monitoring system, wherein the road dust simulation system is used for reproducing dust generated by factors such as negative pressure of automobile tires, the road sprinkling system is used for reproducing a sprinkling truck on an urban road or rainwater in snow and rain, and the road dust collecting and monitoring system is used for collecting the dust, observing change of the dust along with time after sprinkling and providing numerical values for subsequent research. The dust is reduced by simulating real road sprinkling, data are recorded by relevant instruments such as a PM2.5 tester, the test data are analyzed by the aid of the statistical theory, so that a reasonable method for reducing the PM2.5 is determined, the PM2.5 in environments can be reduced, and the system is easy to operate.

The invention discloses a road dust suppressant. The road dust suppressant is prepared from, by weight, 5-10% of sodium diethylhexyl sulfosuccinate, 88-93% of glycerol, 0.5-2% of carboxymethylcellulose, 0.1-0.3% of polyacrylamide, and the balance of water for preparation. The road dust suppressant has the advantages of easily obtained components, easiness in preparation, substantial flying dust adsorption effect, and good penetration and moisture retention effects, and the highly-viscose carboxymethylcellulose and polyacrylamide also have an incrustation and dust proofing effects on road surfaces; the road dust suppressant is nontoxic and has no irritation to skins, so the dust suppressant has no threat to the body health of dust suppressant sprinkling workers and passerby; and the dust suppressant has low cost, is suitable for being used in long-distance railway coal transport, road transport, and especially the non-pavement road transport process, and has a substantially better dust suppressing effect than traditional water sprinkling dust suppression and common road dust suppressants.

A road dust removing device is used for solving the problem that road dust removing is time-consuming and labor-consuming. The road dust removing device comprises an air inducing channel, a dust storage box, a dust-absorbing pipe filter, a position sensor, a control box, a dust-absorbing pipe and a solar power generation apparatus; the air inducing channel is inclinedly arranged in a road shoulder; two ends of the air inducing channel are respectively a dust inlet and a dust outlet; the dust outlet is lower than the dust inlet and the dust outlet is provided with the dust storage box; the dust-absorbing pipe is disposed in the dust storage box; the dust-absorbing pipe filter is disposed below the dust-absorbing pipe; the dust-absorbing pipe filter is positioned at the bottom of the dust storage box; an upper portion of the dust-absorbing pipe stretches out of the road shoulder; the position sensor for detecting dust height is disposed in the dust storage box; and the control box and the solar power generation apparatus are disposed on the road shoulder. Two operation modes including field control and remote control are adopted by the dust removing device, on-line monitoring and intelligent alarm can be achieved, and intelligence degree is high. When dust is removed, the dust is brought into the air channel by air flow generated when automobiles pass, manual dust removal is not required, and manpower is reduced.

The invention discloses an automatic rotating high-efficiency spraying device. The automatic rotating high-efficiency spraying device comprises a shell body, a supporting rack, a rotating connection head, a servo motor, a rotating gear, a water conveying rod, a spraying rod, a spraying head and an air tube, wherein the upper end of the supporting rack is provided with the rotating connection head,a rotating portion of the rotating connection head is connected with the water conveying rod, the top of the water conveying rod is connected with the spraying rod through a connection flange, the tail end of the spraying rod is provided with the spraying head, and the outer side of the tail end of the spraying rod is fixedly provided with the air tube. On the whole, the automatic rotating high-efficiency spraying device has the advantages that the automatic rotating high-efficiency spraying device is reasonable in design and convenient to install and use, the fogging quantity and the spraying efficiency are greatly improved, 360-degree rotating spraying can be performed, the spraying direction can be controlled, the water use quantity is reduced, the atomization effect is good, ground water accumulating is avoided, influence on vehicle and pedestrian traffic is greatly lowered, the dust-reduction and haze-prevention cost is lowered, road dust raising is effectively controlled, and the automatic rotating high-efficiency spraying device has extremely high use value.