65results about How to "Convenient for dust suppression" patented technology

The invention discloses a dust suppressant as well as a preparation method and an application thereof. Based on 100 parts by weight, the dust suppressant consists of 8-10 parts of pure acrylic emulsion, 0.2-0.4 part of sodium dodecyl sulfate, 0.2-0.4 part of sodium carboxymethyl cellulose, 1-2 parts of starch, 0.1-0.2 part of anhydrous sodium sulfate and the balance of water. The preparation method for the dust suppressant comprises the following steps: heating water until boiling, adding the pure acrylic emulsion and the sodium dodecyl sulfate, controlling the temperature to 75-95 DEG C to stir for 20-50 minutes, then, adding the starch and the anhydrous sodium sulfate, controlling the temperature to 75-95 DEG C to further stir for 20-60 minutes, then, adding sodium carboxymethyl cellulose to for further stir for 20-60 minutes, and cooling to the room temperature, thereby obtaining the dust suppressant which is environmentally friendly, low in cost and free of secondary pollution. The dust suppressant disclosed by the invention is used for suppressing dust in a powder storage yard, wherein the dust suppressing rate is up to over 85%.

The invention discloses a PLC-controlled spray dust removal and haze removal vehicle with a vector nozzle, which comprises a six-wheeled vehicle chassis, a front vector cyclone sprayer, a first worm wheel, a first worm, a first plunger hydraulic motor and the like. The front vector cyclone sprayer is fixedly installed on the upper part of the first worm wheel through a bracket. The first worm gear rotates vertically and is installed on the boss on the lifting platform. The first worm is installed on the support of the lifting platform for lateral rotation, and cooperates with the first worm wheel. The invention can achieve large power transmission in a small space, so that the high-speed fan can easily reach a very high speed and is stable and noiseless. By setting the vector nozzle, the front vector cyclone sprayer and the rear vector cyclone sprayer can be sprayed The direction and angle can be adjusted more precisely, so as to achieve better dust removal effect.

The invention belongs to the field of automotive loading equipment for bulk materials, and particularly relates to an automotive loading gate which is adjustable in material flow rate, flow velocity and the heights of the gate and a carriage. The automotive loading gate is provided with a hydraulic flat-slab gate, an inner chute, a swinging chute and a telescopic chute in sequence from top to bottom and along a material flow direction. The automotive loading gate is characterized in that a feeding opening of the hydraulic flat-slab gate is matched with a bin opening of a stock bin; a discharging opening of the hydraulic flat-slab gate is matched with the inner chute; one end of the swinging chute is sleeved at the outer side of the inner chute and swings around a rotating shaft fixedly arranged on a left side plate and a right side plate of the inner chute; and the telescopic chute is sleeved at the inner side of a discharging opening end of the swinging chute. Through regulating the openness extent of the gate, the material flow rate is regulated; through regulating the angle of the swinging chute, the material flow velocity is controlled; through regulating the extension and the shrinkage of the telescopic chute, a loading height is regulated; and through the regulation measures, the loading requirements of different vehicle types are met.

The invention relates to the technical field of environmental protection, and particularly relates to an environment-friendly wetting-type dust suppressant and a preparation method thereof. The environment-friendly wetting-type dust suppressant disclosed by the invention comprises the following raw materials: a mixed surfactant, a fluorine-containing and / or organic silicon-containing surfactant, apenetrating agent and water, wherein the mixed surfactant is a mixture of a nonionic surfactant and an ionic surfactant. According to the environment-friendly wetting-type dust suppressant disclosedby the invention, the surfactants in the raw materials are all green, environmentally friendly and degradable, so that relatively high biodegradability is achieved, high wettability and permeability are achieved, dust suppression efficiency is high, and dust suppression requirements under various dynamic dust raising working condition environments can be met.

The invention discloses a building engineering environment monitoring device, relates to the field of building engineering equipment, and aims to solve the problem of unreasonable resource utilizationof the traditional environment monitoring device. The key points of the building engineering environment monitoring device are as follows: the building engineering environment monitoring device comprises detection devices arranged in a plurality of engineering areas and used for detecting dust, and dust suppression devices arranged in the plurality of engineering areas, the detection devices arecoupled with a controller, each detection device comprises a dust sensor, each dust suppression device comprises a spraying component and an adjusting mechanism used for adjusting the spraying amountof the spraying component. The controller presets a plurality of dust pollution range values; when the dust sensor feeds back a dust detection value to the controller and the dust detection value falls into the dust pollution range value, the controller controls the adjusting mechanism in the area where the dust sensor is located to adjust the spraying amount of the spraying component. The building engineering environmental monitoring device has the advantage of saving water resources.

The invention relates to a mist spray dedusting haze removal car, which comprises asix wheel automobile chassis, a cyclone sprayer of lead vector, a first worm wheel, a first worm rod and a first hydraulic motor and the like. The cyclone sprayer of lead vector is arranged fixedly on the upper part of the first worm wheel through a support. The first worm wheel is arranged on a boss of a lifting platform in the mode of vertical rotation. The first worm rod is arranged on the support of the lifting platform in the mode of horizontal rotation and is matched with the first worm wheel. The invention can realize large power transmission in the smaller space, so that high speed fan reaches higher smooth rotating speed without noise, the angel and accuracy of the cyclone sprayer of lead vector and cyclone sprayer of rear vector are adjusted through a spout of lead vector, so that the dedusting effect can be achieved.

This invention refers to innovative water sprays applications to significantly improve coal and quartz dust control around a continuous miner. Significant dust control is achieved through utilizing different types of sprays at locations on the top and sides of the miner chassis to create water curtains or shrouds of water around zones of high dust concentration and zones of high concentration dust transport. This is called “multiple lines of defense” spray system (MLD.) This invention also provides a method of reducing dust around a continuous miner by configuring a spray system, located at the top or sides of the cutter boom, thereby improving control of respirable dust.

The invention provides an integrated type dust-removal desulfurizing tower. A vertical lower part in an absorbing tower barrel body is provided with a cyclone dust collector; the upper end of the absorbing tower barrel body is provided with a dual-desulfurizing and dust-collecting device; the dual-desulfurizing and dust-collecting device comprises an intestine-shaped smoke gas guide and desulfurizing channel and a spraying frame; the lower end of the intestine-shaped smoke gas guide and desulfurizing channel is communicated with the cyclone dust collector to ventilate; the upper gas outlet port extends into the absorbing tower barrel body, and the horizontal section is provided with a vertical smoke gas recirculating dust-collecting channel which is communicated with a soot inlet; an umbrella-shaped smoke gas diffusing cover and a spray head are arranged above the gas outlet port; and a funnel-shaped smoke gas dispersing grid which is used for dispersing gas flow in the adsorbing towerbarrel body and recycling a desulfurizing agent sprayed by the spraying frame is mounted on the spray head in a communication mode. The integrated type dust-removal desulfurizing tower adopts a dust-collecting and desulfurizing vertical integrated design, is small in floor space, is compact in structure, is less in desulfurizing liquid, is high in desulfurizing efficiency, and is excellent in comprehensive performance.

The invention discloses a dust suppression retractable loading and unloading device for bulk materials. The dust suppression retractable loading and unloading device for the bulk materials is composed of three parts including a retractable hopper, a fan dust extraction device and a micron-level dry mist dust suppression device. The retractable hopper is a retractable structure with a gate and comprises a lifting device, a retractable hopper body and a gate opening and closing mechanism. The retractable hopper body is composed of a plurality of levels of hoppers. Each level of hopper can descends sequentially. The gate opening and closing mechanism is an opposite-opening gate installed on the large hopper at the rearmost end. After all the hoppers are loaded fully, all the hoppers are slowly opened at the same time for truck loading. The invention further discloses a dust suppression retractable loading and unloading device for the bulk materials. The retractable hopper reduces the actual falling height of the materials, slows down the materials, reduces the airflow pressure produced through collision and raised dust and prevents the materials from being broken when the materials impact a compartment, ration loading is achieved, and the efficiency is improved. Meanwhile, a dust removal fan and the micron-level dry mist dust suppression device are gradually turned on in the loading process, and a further suppression effect is achieved for the raised dust.

The invention discloses a building engineering construction site intelligent green spraying dust falling device which comprises an electric trolley, the top of the electric trolley is connected with a base, a supporting plate is installed at the top of the base, a first gear motor used for driving the supporting plate to rotate is fixedly installed on the outer wall of the base, and an air duct is installed at the top of the supporting plate in an angle-adjustable mode. A plurality of atomizing nozzles are hinged to the inner wall of the air outlet end of the air duct through hinge seats, the atomizing nozzles communicate with the annular water supply pipe, a driving mechanism is installed on the outer wall of the air outlet end of the air duct, the atomizing nozzles are in transmission connection with the driving mechanism, and the driving mechanism drives the atomizing nozzles to converge or diverge relative to the axis of the air duct; intelligent control system equipment is arranged on the electric trolley, and the intelligent control system equipment is configured to complete movement control over the electric trolley, orientation control over the air duct and orientation control over all the atomization nozzles on the basis of dust raising monitoring equipment arranged on a construction site and monitoring information collected by a flame detector.

The invention discloses a dust-suppression humectant and a preparation method thereof. The dust-suppression humectant comprises the following raw materials: 21% to 23% of a dust suppressant, 31% of 33% of a humectant, 17% to 19% of cellulose, 17% to 19% of industrial paraffin, 2% of polyvinyl alcohol, 2% of acrylate, 2% of calcium magnesium acetate, 2% of triethanolamine and 2% of epoxy resin. Thepreparation method comprises the following steps of removing an impurity, weighing, firstly adding the dust suppressant, the humectant, the cellulose and the industrial paraffin to a mixer, adding water according to a proportion of the total raw materials to the water of 1 to 2, mixing, cooling for a period of time, then adding the polyvinyl alcohol, the acrylate, the calcium magnesium acetate, the triethanolamine and the epoxy resin, mixing, and making into a pasty mixture. The dust-suppression humectant prepared in the mixing proportion not only has favorable moisture-absorption and moisture-retention effects, but also can absorb hydrogen sulfide and another toxic gas in air, meanwhile, is convenient to use, and can achieve quite good effects of dust fall, dust suppression and the prevention of soil from wind erosion.

The invention is applicable to the field of environmental protection, and provides a dust falling device for environmental protection. The device comprises a box body, and further comprises a rotating pipe, a dust falling ring and an air conveying mechanism; the rotating pipe is rotatably mounted at the top of the box body, and a driving mechanism for driving the rotating pipe to rotate is further mounted on the box body; the dust falling ring is fixedly installed at the upper end of the rotating pipe, and a plurality of atomizing nozzles are further installed on the upper portion of the inner side of the dust falling ring; a liquid conveying mechanism used for conveying liquid to the atomizing nozzles is further mounted on the inner side of the box body; and the air conveying mechanism is mounted on one side of the dust falling ring, and the air conveying mechanism is used for conveying air to be subjected to dust falling to the dust falling ring. The device is simple in structure, large in dust falling range, good in effect and high in efficiency.

The invention relates to a concrete pavement crushing treatment integrated system and belongs to the technical field of road engineering.The top of one side of a pavement crusher body is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with a fixing frame, and one side of the fixing frame is fixedly connected to the pavement crusher body; a supporting frame is fixedly connected to the bottom of one side of the fixing frame and located at the bottom of the pavement crusher body, one side of the top of the supporting frame is fixedly connected to the bottom of the pavement crusher body through a connecting plate, and supporting plates are fixedly connected to the front face and the back face of the pavement crusher body correspondingly. According to the system, broken stones can be collected and smashed, classified collection can be directly conducted in the device according to the particle size, follow-up direct use is facilitated, the road surface on which the vehicle passes can be clean, meanwhile, the integrated assembly line operation of separation, screening and disposal is achieved, and the working efficiency of the device is improved.

The invention discloses an environmental-friendly building waste crushing device. The environmental-friendly building waste crushing device comprises a shell, a crushing device, a material returning device and a dust falling conveying device, wherein the crushing device comprises a top cover which is in threaded connection with the top of the shell; the inner part of the shell is fixedly connectedwith a crushing box; the inner part of the crushing box is in rotary connection with three transmission shafts; one transmission shaft is sleeved on an output end of a servo motor; the servo motor ismounted on an outer side wall of one end of the shell; the top of the top cover is fixedly connected with a feeding hopper; the inner part of the feeding hopper communicates with the inner part of the crushing box; the material returning device comprises two material returning barrels which are fixedly connected with two sides of the inner part of the shell; the inner parts of the material returning barrels are in rotary connection with transmission rods; the bottom of the crushing box communicates with a material receiving box; and two sides of the top end of the material receiving box are fixedly connected with return pipes. The two transmission rods drive a first auger to upwards convey materials entering from the return pipes along the material returning barrels; and the materials areconveyed into the crushing box again through a material returning pipe, so that the waste is repeatedly crushed until crushing requirements are met.

The invention relates to an environment-friendly electric road sweeper. The environment-friendly electric road sweeper comprises a rectangular chassis, a cleaning device, a solar panel, a rain-sheltering plate, cleaning disc brushes, adjusting rods, dust-suppression covers, driving motors, dust suction pipes and a dust suction fan. A functional box is arranged on the upper side of the chassis, andthe functional box is in welded connection with the chassis. A dustbin is arranged on the rear portion of the chassis, and the dustbin is in embedded connection with the chassis; the cleaning deviceis arranged on the lower side of the chassis, and the cleaning device is connected with the chassis through the adjusting rods; the solar panel is arranged on the upper side of the rain sheltering plate, the solar panel is embedded into the rain sheltering plate, and the solar panel is fixedly connected with the rain sheltering plate through bolts. Through improvement on an existing sweeper, the environment-friendly electric road sweeper has the advantages that the driving mode is environmentally friendly, the noise is low, the dust-suppression effect and the dust-suction effect are good, andthe vehicle body is small. Therefore, the problems and defects in the background technology are effectively solved.

The invention discloses a waste gas treatment device for industrial adhesive product production. The waste gas treatment device comprises a support frame, wherein a treatment tank is placed at the top end of the support frame; a gas inlet pipe is fixedly connected to one end of the outer end of the treatment tank; a motor is mounted at the center of one end of the treatment tank; a clamping cylinder is fixedly connected to the center of the inner wall of the treatment tank; an output shaft of the motor is fixedly connected with a fixing rod; and the outer end of the fixing rod is connected with a connecting rod in a clamped mode through a clamping groove. According to the structure, through a connecting pipe, waste gas in the treatment tank can be conveniently sprayed and subjected to dust falling; meanwhile, through a first filter screen, particulate matters in the waste gas can be conveniently filtered; by adding a flocculating agent, a part of particles are allowed to stand on the first filter screen, the particles become floccules in water, subsequent treatment is facilitated; and meanwhile, a sealing cover is conveniently separated from the treatment tank through a threaded block, so a worker can conveniently clean the first filter screen.

The utility model discloses spraying equipment for constructional engineering construction, which comprises a base, universal wheels are fixedly connected to four corners of the bottom of the base, a handle is fixedly connected to one side of the base, a water tank is fixedly mounted at the top of the base, a connecting assembly is arranged outside the water tank, a lifting assembly is arranged at the top of the base, and the lifting assembly is fixedly connected to the bottom of the base. A shell is arranged at the top of the base, a motor is arranged on one side of the shell, the output end of the motor is fixedly connected with a threaded rod, and the threaded rod extends into the shell. By means of the arranged structure, workers can conduct spraying and dust falling on the surroundings conveniently when conducting construction on building engineering, and by means of the arranged rotatable spraying head, dust falling can be conducted conveniently. The spraying range is enlarged, a large spraying range can be achieved through few spraying devices, meanwhile, the height of the spraying head can be adjusted, adaptability is high, and use by workers is greatly facilitated.

The utility model relates to a dust falling device for a coal mining working face. The dust falling device comprises a first base, a second base, an atomization spraying pipe, a swing frame and a driving mechanism. The first base and the second base are used for being arranged on the two sides of a traction part of the coal mining machine, the swing frame is used for being arranged above the traction part and surrounding the traction part, the first end of the swing frame is rotatably connected to the first base, and the second end of the swing frame is rotatably connected to the second base. The atomization spraying pipe is installed on the swing frame, and an atomization nozzle is arranged on the side, facing the traction part, of the atomization spraying pipe. The driving mechanism is installed on the first base and used for driving the swing frame to swing in a reciprocating mode. The reciprocating swing of the swing frame covers the space of the coal mining machine in the horizontal direction and the space of the coal mining machine in the vertical direction at the same time, on one hand, the dust falling effect can be improved, and on the other hand, the occupied moving space is smaller under the condition that the space and the area covered in the mining working face are the same in a swing mode.

The invention discloses a dust suppression telescopic loading and unloading device for bulk materials, which consists of three parts: a telescopic hopper, a fan dust removal device, and a micron-level dry fog dust suppression device; the telescopic hopper is a telescopic structure with a gate , including a lifting device, a telescopic hopper body, and a gate opening and closing mechanism; the telescopic hopper body is composed of multi-stage hoppers, and each stage of hopper can fall in turn, and the gate opening and closing mechanism is a split type installed on the most end large hopper After the hopper is fully filled, the gate is slowly and synchronously opened for loading. The invention also discloses a dust suppression telescopic loading and unloading method for bulk materials. The telescopic hopper of the present invention reduces the actual falling height of the material, decelerates it, reduces the airflow pressure generated by the impact, reduces dust, prevents the material from impacting on the compartment and is crushed, loads the vehicle quantitatively, and improves efficiency. At the same time, the dust removal fan and the micron-level dry fog dust suppression device are gradually turned on during the loading process, which further suppresses the dust.

The invention discloses a waste gas treatment device for the production of industrial adhesive products, which comprises a support frame, a treatment tank is placed on the top of the support frame, an air inlet pipe is fixedly connected to one end of the outer end of the treatment tank, and one end of the treatment tank is A motor is installed at the central position, a clamping tube is fixedly connected to the central position of the inner wall of the processing tank, a fixed rod is fixedly connected to the output shaft of the motor, and a connecting rod is clamped on the outer end of the fixed rod through a clamping slot. The present invention Through the connecting pipe, it is convenient to spray the exhaust gas inside the treatment tank to reduce dust. At the same time, it is convenient to filter the particulate matter in the exhaust gas through the first filter screen, and by adding flocculant, some particles can pass through the first filter screen. Stand still, so that the particles become flocs in the water, so as to facilitate subsequent processing, and at the same time, through the threaded block, it is convenient to separate the sealing cover from the treatment tank, so that the staff can clean the first filter screen.

The utility model provides a spraying dust-settling device for a tunnel portal construction muck truck, which belongs to the technical field of dust settling of muck trucks and comprises a base, a steel frame is fixedly connected in the base, slopes are fixedly connected to two ends of the base, two vertical plates are symmetrically and fixedly connected to the upper end face of the base, and the vertical plates are fixedly connected to the lower end face of the base. A mounting frame is fixedly connected between the upper end faces of the two vertical plates, two fixing pieces are symmetrically and fixedly connected to the upper end face of the mounting frame, a threaded rod is rotationally connected between the two fixing pieces, and a motor is fixedly connected to the outer side wall of one fixing piece. Through the arrangement of the threaded rod, the motor, the moving block, the spraying pipe, the atomization nozzle and the water supply structure, spraying dust falling is evenly carried out on the muck truck, the uniformity of spraying dust falling is improved, spraying dust falling can be conveniently carried out on a truck body of the muck truck, the dust falling effect is improved, and the service life of the muck truck is prolonged. The problem that in the prior art, comprehensive and uniform spraying and dust falling are inconvenient to conduct on the muck truck is solved.

An integrated dust removal and desulfurization tower is provided. The vertical lower part of the absorption tower body is a cyclone dust collector, and the upper end is equipped with double desulfurization and dust reduction devices; the double desulfurization and dust reduction devices include intestinal flue gas drainage, desulfurization channels and spray racks Among them, the lower end of the intestinal flue gas drainage and desulfurization channel is connected to the cyclone dust collector, the upper gas outlet port extends into the absorption tower body, and the horizontal section is provided with a vertical flue gas recirculation and dust reduction channel connected to the flue dust inlet; above the gas outlet port Equipped with an umbrella-shaped flue gas diffuser and a nozzle; connected to the nozzle, a funnel-shaped flue gas dispersion grid is installed to disperse the air flow in the absorption tower cylinder and to recover the desulfurizer sprayed by the spray rack. The dust reduction and desulfurization vertical integration design of the present invention occupies a small space, has a compact structure, consumes less desulfurization liquid, has high desulfurization efficiency, and has superior comprehensive performance.

The utility model relates to the technical field of automobile glass lifter and discloses an edge and corner material recovery mechanism for automobile glass lifter processing, which comprises a supporting component and a crushing component, the side away from the supporting component of the crushing component is fixedly installed with an inlet, and the end away from the crushing component of the inlet is provided with a dust suppression component. The edge and corner material recovery mechanism for automobile glass lifter processing can realize the quick positioning of the collecting bag through the cooperation of the inserting rod, the first inserting slot and the second inserting slot, can realize the quick installation of the collecting bag through the cooperation of the limiting rod, the first limiting hole and the second limiting hole, and can collect the edge and corner material crushed by the crushing component through the design of the collecting bag. When the staff clean up the collected edge and corner material, they only need to replace the collecting bag, so the working efficiency is high. The dust suppression component can realize quick dust suppression, avoid dust flying and provide a good working environment for the staff, and has high practicability.

The utility model discloses a gravel spraying device which comprises a U-shaped frame, a spraying assembly is arranged at the top of the U-shaped frame, anti-toppling assemblies are arranged on the two sides of the U-shaped frame, the spraying assembly comprises a first pipeline, the first pipeline is rotationally installed at the center of the top of the U-shaped frame in a penetrating mode, and the lower end of the first pipeline is connected with a water collecting plate. According to the gravel spraying device, by starting the motor, the water collecting plate and the spraying heads can be driven to rotate, and due to the fact that the spraying heads are distributed at the bottom of the water collecting plate at equal intervals, the water mist spraying range of the spraying heads is enlarged; and the spraying head is in a rotating state, and under the action of centripetal force, the spraying range of the spraying head is further enlarged, so that the dust falling range is enlarged, and dust generated by broken stones can be effectively subjected to dust falling.

The invention relates to the technical field of stone smashing and discloses a stone smashing device with high smashing efficiency and dust-free treatment in the smashing process. The stone smashing device comprises a smashing box body. A first striking block is movably installed inside the smashing box body. A first spring is fixedly installed on the right side of the first striking block. A second striking block is fixedly installed inside the right side of smashing box body. A second spring is fixedly installed on the right side of the second striking block. Conical teeth are arranged on the left sides of the first striking block and the second striking block correspondingly. According to the stone smashing device with high smashing efficiency and dust-free treatment in the smashing process, through high speed rotating of a smashing rolling shaft inside the smashing box body, stone is struck to fly and bumps on the first striking block and the second striking block; springs on the right sides of the two striking blocks are compresses instantly; when pressure is weakened, the compressed springs rebound and reset, opposite-direction impact force is generated to full-speed moving stone, and thus the purpose of higher smashing efficiency is achieved.

The invention provides field type material fine crushing and high-quality and high-efficiency uniform mixing equipment and method. The equipment comprises a grinding and mixing chamber and a grinding machine, the grinding and mixing chamber is defined by cylindrical enclosing walls, a feeding window is arranged on one side of the grinding and mixing chamber, a vehicle access door is arranged on a second side of the grinding and mixing chamber, and a discharging opening is formed in a third side of the grinding and mixing chamber; and the rolling machine can be driven in from the vehicle access door and performs annular rolling operation in the rolling and mixing chamber. The tail part of the grinding machine is connected with a plough share through a connecting rod, so that materials can be turned over while rolling and mixing. The grinding and mixing equipment is simple in structure and low in construction cost and operation and maintenance cost; the crushing and uniform mixing effects are equivalent to those of a common wheel rolling stirrer, but the single-batch treatment capacity is large due to field type rolling and mixing; and the grinding machine can realize material rolling and material turning at the same time, and is flexible to operate and low in failure rate.

The invention discloses a construction engineering environment monitoring device, which relates to the field of construction engineering equipment and aims to solve the problem of unreasonable resource utilization of traditional environmental monitoring devices. A detection device for detecting dust, a dust reduction device arranged in multiple engineering areas, the detection device is coupled to a controller, the detection device includes a dust sensor, the dust reduction device includes a spray assembly and is used to adjust the spray assembly The adjustment mechanism of the water spray volume, the controller presets a plurality of dust pollution range values, when the dust sensor feeds back the dust detection value to the controller, and the dust detection value falls into the dust pollution range value, the controller controls the dust sensor The adjustment mechanism in the area can adjust the spraying amount of the spray assembly. The construction engineering environment monitoring device of the present invention has the advantage of saving water resources.

The invention provides a kind of city construction dust control method, comprises the following steps: (1) the polyvinyl alcohol resin of 40-50 weight part, the plasticizer of 1-2 weight part, the inorganic filler of 20-30 weight part, 20-30 parts by weight of starch, 0.5-1 parts by weight of surfactant, and 400-560 parts by weight of water are mixed to form a film-forming liquid at 70-80°C, and then cast the film-forming liquid onto On a glass plate, remove the film after drying to obtain a water-soluble film, and open a through hole with a diameter of 100-200 μm on the water-soluble film; (2) lay a layer of film on the excavated construction surface, and water it to moisten it; (3) Lay a layer of film on the excavated surface after excavating to a depth of 1m, and water it to moisten it. The method is simple, low in cost, does not affect the construction of the construction site, and the prepared film has a better effect of preventing dust, quick effect, low cost, environmental protection and no pollution.

The utility model discloses a dust suppression device for an anode scrap storage yard, which belongs to the field of dust suppression devices and comprises a bottom plate, a water tank fixedly connected onto the bottom plate, a water suction pump fixedly connected onto the side surface of the water tank, a support frame fixedly connected onto the side surface of the water suction pump and a dust suppression component movably mounted on the support frame. The dust falling assembly comprises a stepping motor, a first gear, a supporting rod, an adjusting pipe, a mounting plate, a first water pipe, a water box, a water spraying pipe, an atomizing nozzle and fan blades, the dust falling assembly is arranged, the bottom plate is convenient to move through rolling wheels, the stepping motor rotates, and the first gear and a second gear rotate in a meshed mode, so that the height of the supporting rod is convenient to movably adjust; according to the dust removal device, dust removal liquid can be conveniently moved to a proper height, a water suction pump feeds liquid water in a water tank into a water box, then the liquid water is sprayed out from atomization nozzles on the two sides, the water box rotates under spraying pushing of the atomization nozzles, the atomization nozzles rotate to spray the liquid, the spraying range is widened, and the dust removal effect is improved.