58results about How to "Good effect of dust suppression" patented technology

The invention discloses a tunnel excavation water pressure blasting construction method. The tunnel excavation water pressure blasting construction method comprises the following steps of (1) arranging a trolley in place and conducting danger elimination; (2) measuring, distributing and drilling holes; (3) installing explosives, water bags and stemming, wherein the peripheral holes are excavated on the arc edge of the tunnel face of a tunnel, and the explosives, the water bags and stemming are installed in the following manners of air spacing, decoupling charge and the explosive quantity at hole bottoms more than that of other parts; cut holes are drilled in an inclined mode, and the included angle between the cut holes and the excavation face is 65 degrees-75 degrees; the continuous coupling charge method is adopted for loosening holes, relief holes, inner ring holes and bottom plate holes, blasting caps are buried into hole bottom cartridges, and energy gathering holes face orifices;the water bags are arranged at the hole bottoms of shot holes, and the water bags are arranged again after completion of explosive charging, and the holes are blocked through the stemming; (4) detonating a detonating network; (5) conducting after-detonation check and misfire processing; and (6) withdrawing the explosives to the warehouse. Through the tunnel excavation water pressure blasting construction method, the energy of explosives can be made full use of, environmental pollution can be reduced, and the cost can be saved.

Disclosed is a hard roof directional pressurized explosion control method. Special drilling arrangement, loading structures and hole sealing manners are selected according to self-conditions of a roof, pressurized explosion transferring media is used to fully expel air in cracks, the characteristics of low compressing performance and high dynamite utilization rate of the pressurized explosion transferring media is utilized to perform directional or non-directional control explosion to slotted drilling holes or complete drilling holes, and expansion and pulse of the pressurized explosion transferring media are utilized for secondary loosening and weakening of surround rock of the drilling holes to accelerate development and penetrating of the roof cracks and strengthen presplitting weakening of the hard roof. The method mainly includes parallelly drilling holes and alternately loading dynamites at intervals; cutting grooves of the drilling holes; and explosion safety protection. The method is convenient to implement, simple to operate, low in cost and wide in application range, and can be popularized in loosening and weakening of common roofs or top coal and coal layers.

The invention relates to a comprehensive dustproof technology of a fully mechanized excavation face based on dust segregation. The dustproof technology integrates a series of comprehensive dust proof measures of dust segregation, dust reduction, dust removing and the like. Firstly, coal bed high-pressure water injection is implemented to reduce the generation amount of coal dust; secondly, an excavator is utilized to perform inside and outside spray to reduce dust, and water curtain is use for performing segregation between space and space to further reduce dust; and thirdly, segregation chambers are utilized to segregate people from dust to further improve the dust reduction effect. Aimed at three aspects of mine dust sources and transmission routes and self-protection of staff, the comprehensive dustproof technology combines prevention and treatment, so that the technology is not only safe and convenient, but also can perform dustproof work systematically and comprehensively; the dust reduction effect is obvious, and the broad practicability is provided.

The invention discloses a deep hole blasting filling method. The deep hole blasting filling method includes the steps that the bottom of a blast hole is filled and blocked with cement, and meanwhile the bottom resistance line is reserved; a pre-designed amount of first explosive is loaded to the bottom of the blast hole, and meanwhile a first double-detonator and detonating cord igniting explosive package and a first detonator are loaded into the blast hole along with the first explosive; the position on the top of the first explosive is filled with an appropriate amount of river sand; a pre-designed amount of second explosive is continuously loaded to the top of the river sand, and meanwhile a second double-detonator and detonating cord igniting explosive package and a second detonator are loaded into the blast hole along with the second explosive; after all the explosive is loaded into the blast hole, the top of the second explosive is filled with fine river sand, and then two water bags are hoisted into the blast hole and press on the top of the fine river sand. The deep hole blasting filling method solves the problems that according to an original filling scheme, the number of plug holes is large and a large amount of dust is generated.

The invention relates to an energy-saving and environment-friendly digital detonator hydraulic blasting charging structure for tunnels. The structure comprises a peripheral hole, an auxiliary hole anda cutting hole, wherein the peripheral hole is formed in the outermost ring of the surrounding rock of a tunnel face, the auxiliary hole and the cutting hole are formed in the inner ring. A discontinuous peripheral hole charging structure is arranged in a blast hole of the peripheral hole, the peripheral hole charging structure comprises a first bottom explosive roll, a first water bag, a first reinforcing explosive roll, a second water bag, a second reinforcing explosive roll, a third water bag, an energy-saving explosive roll, a fourth water bag and first sealing gun mud which are arrangedat the bottom of the blast hole of the peripheral hole; a first detonating cord is arranged in the first bottom explosive roll, the first detonating cord sequentially penetrates through the first reinforcing explosive roll, the second reinforcing explosive roll, the energy-saving explosive roll and the first sealing gun mud, and a first digital electronic detonator with a detonating tube is arranged at one end outside the blast hole of the peripheral hole; and both the auxiliary hole and the cutting hole adopt a traditional charging structure of sequentially conducting continuous charging, additional arranging of a fifth water bag and sealing through second sealing gun mud. The charging structure is safe, reliable, energy-saving, environment-friendly, simple and easy to operate, and is suitable for initial excavation work of rock tunnel III and IV surrounding rocks.

The invention discloses a dust removal device of a sapphire processing system. The dust removal device comprises a dust fall main unit and a control box, wherein a dust monitor is arranged in the control box; one end of the dust fall main unit is connected with a water pipe, and the other end of the dust fall main unit is connected with a sprayer; an electromagnetic control valve is arranged on the water pipe; the electromagnetic control valve is electrically connected with the control box. By utilizing the manner, the water pipe of the dust removal device of the sapphire processing system has high strength, the water spraying process is high in strength and good in quality, the whole control process is performed continuously, the mist is sprayed continuously and circularly to bring excellent dust fall effect, thereby guaranteeing a clean and tidy sapphire processing environment.

The invention relates to a grooving device, in particular to a grooving device for installation of building monitoring equipment. Therefore, according to the technical problem, the grooving device forthe installation of the building monitoring equipment aims at achieving the effects of being good in dust falling effect and capable of collecting waste materials. According to the technical scheme,the grooving device comprises a base, wheels, an inner telescopic rod, an outer telescopic rod, a connecting block, a connecting plate, a connecting rod, a first motor, a saw blade, a sliding block, an air cylinder, a rack, a supporting rod and the like, wherein the wheels are arranged on the periphery of the bottom of the base, the inner telescopic rod is connected to the left side of the top ofthe base, the outer telescopic rod is slidably connected to the inner telescopic rod, and the connecting block is connected to the top of the outer telescopic rod. According to the grooving device, asecond motor rotates to drive the connecting block to move upwards or downwards, so that the first motor is driven to move upwards or downwards, the first motor drives the saw blade to rotate, so thatgrooving is carried out on a wall, and dust falling is achieved through water, so that the effects of being good in dust fall effect and high in working efficiency are achieved.

The invention discloses a pipeline dust-settling device for chemical exhaust treatment, comprising a front joint, a dust-settling pipe and a back joint. The back joint is provided with a front end cover connected with an air cylinder, an output rod of the air cylinder is provided with a telescopic rod which penetrates the back joint to be further hinged to a hinge rod, the hinge rod is fixedly connected with a dust scraper, a sleeve which is integrally molded with the dust scraper is arranged on the top of the dust scraper, a drive shaft penetrates the dust-settling pipe, one end of the driveshaft is fixedly connected with an output shaft of a stepping motor, two circular discs are fixedly connected with the drive shaft, a vane impeller is fixedly connected between the two circular disc,and a spray pipe is fixedly connected onto the top of the dust-settling pipe while a dust-collecting pipe is fixedly connected onto the bottom of the dust-settling pipe. The dust-settling pipe is mounted by means of flange connection in an exhaust pipeline, exhaust flow drives the vane impeller to rotate so that the vane impeller touches dust repeatedly to attach the same, and thus, dust settlingeffect is realized effectively. The pipeline dust-settling device is simple in structure, easy to operate and worthy of population.

The invention discloses an environmental protection device for construction which is characterized in comprising a base, a moving device, a supporting component, a supporting plate, a supporting rod and a sprinkling device, wherein the moving device is arranged on the base; the supporting component is arranged above the base in a vertical structure; the supporting plate covers on the supporting component, the supporting rod and the sprinkling device are arranged on the supporting plate, wherein the supporting rod is vertically connected at the central end of the supporting plate. The water spraying component of the sprinkling device is arranged at the top of the supporting rod, the supporting component includes the supporting rod and a height adjustment device, the height adjustment deviceis arranged on the supporting rod, and the upper end of the supporting rod is arranged on an angle adjusting device. The water spraying component of the sprinkling device is arranged on the top partof the supporting rod through the angle adjusting device, the bottom end of the base is provided with a dust suction device, the time and labor are saved, the dust reducing effect is good, the spraying range is wide, meanwhile, small garbage in a construction site can be cleaned, and the working strength of cleaners is reduced.

The invention discloses an intelligent device for wind-water linkage spraying and dust reduction for mining. The interior of a main control box is provided with a multi-path signal processing circuit, a main control chip, two relays, a gas-path electric ball valve and a water-path electric ball valve, wherein the top surface of the main control box is embedded with a touch screen, and the main control chip is electrically connected to the delays, the touch screen and the multi-path signal processing circuit separately; the delays are connected to the gas-path electric ball valve and the water-path electric ball valve respectively; the main control chip is also externally connected to a power source, and the external side of the main control box is provided with a plurality of sensors, a gas source pipeline and a water source pipeline; the sensors are connected to a plurality of signal processing circuits respectively, and the both ends of the gas-path electric ball valve are connected to the gas source pipeline separately; the both ends of the water-path electric ball valve are connected to the water source pipeline separately; the outlets of the gas source pipeline and the water source pipeline are connected to a wind-water spraying shelf separately. The intelligent device for wind-water linkage spraying and dust reduction for mining has the advantages of being reasonable in structure, high in dust reduction efficiency, large in spraying area, less in water consumption, and convenient to use.

The invention discloses an ore crushing device with a dust falling mechanism. The ore crushing device comprises a crushing cylinder and a grinding roller; the crushing cylinder is a conical hollow cylinder with a wide upper part and a narrow lower part; a discharging pipe is embedded in the central axis of the crushing cylinder; the upper part of the crushing cylinder is communicated with a blastpipe; and the blast pipe is tangentially communicated with the crushing cylinder. Through the arrangement of the crushing cylinder which is wide in upper part and narrow in lower part and is in a conical cylinder shape, a central pipe extending into the crushing cylinder, the blast pipe and a blast cylinder linked with a rotating shaft, the rotational flow is formed in the crushing cylinder for cyclone sedimentation and collection of dust, so the random floating of the dust is avoided, and a good dust falling effect is achieved; through the arrangement of an eccentric extrusion disc, an impactplate and a guide cover, the ore crushing speed and effect are guaranteed; through the arrangement of a discharging box, a columnar cavity and an impeller roller, while quantitative discharging is conducted, the crushing effect is guaranteed, and the dust is prevented from overflowing from the feeding hopper, thereby further improving the dust falling effect.

The invention discloses a mining automatic atomizing and dust falling device, relating to a pneumatic control device. One end of a water pressure pipe is connected with a water source, the other end of the water pressure pipe is connected with a booster pump through a filter, and the booster pump is connected with a spray nozzle through a water pipe; and the filter is controlled by the pneumatic control device, the pneumatic control device and the booster pump are connected with an air supply processor through an air pressure pipe, the air supply processor is connected with an air source through the air pressure pipe, an electric ball valve is arranged on the air pressure pipe, the electric ball valve is controlled by a host machine, the host machine is connected with two sensors, and the two sensors are respectively arranged on two ends of a working surface. The mining automatic atomizing and dust falling device has the beneficial effects that the device is simple in design and lower in cost, and the requirement of controlling the mining automatic atomizing and dust falling device through an electric sensing control system during a temporary passing-by can be met. The device has the advantages of convenience in use, low fault rate in continuous operation, excellent atomizing effect, durability, and safety.

The invention discloses a cutting device for log machining. The device comprises a box body, a first conveyor belt and a second conveyor belt, wherein a second electric push rod is arranged on the inner wall of the top of the box body, a fixing plate is connected to the outer wall of one end of the second electric push rod, a protective shell is arranged on the outer wall of one side of the fixingplate, a motor is arranged on the inner wall of one side of the protective shell, a cutting wheel is arranged on the outer wall of one end of a motor output shaft, a liquid storage box is arranged onthe outer wall of the top of the box body, a connecting pipe is inserted into the outer wall of one side of the liquid storage box, one end of the connecting pipe extends into the box body, and an atomizing nozzle is in threaded connection with the outer wall of one end of the connecting pipe. According to the device, when the cutting wheel cuts a log, a first electric push rod and a third electric push rod are started, the first electric push rod and the third electric push rod drive a fixing ring to move downwards, a wood body can be effectively fixed, the cutting work stability is guaranteed, and the cutting efficiency of the device is improved.

The invention relates to a treatment device, in particular to an air treatment device for a metallurgical factory, and aims to provide an air treatment device for the metallurgical factory, wherein the air treatment device can repeatedly treat and discharge air and cannot affect surrounding environments. In order to solve the technical problem, the air treatment device for the metallurgical factory comprises a bent pipe and the like. An air extractor is arranged on the inner left side of a pipeline, a filtering mechanism is arranged on the right inner side of the pipeline, the bent pipe is connected at the right end of the pipeline, the bent pipe is communicated with the inside of the pipeline, a hopper is mounted at the tail end of the bent pipe and communicated with the inside of the bent pipe, a pipe is connected with the right side of the top of the hopper and communicated with the inside of the hopper, and the outer left side surface of the pipe is connected with the lower portionof the outer right side of the bent pipe. According to the air treatment device, dust in the air can be removed, so that the air can be repeatedly treated and completely discharged, and the surrounding environments cannot be affected.

The invention discloses a dust-falling spraying device for building construction. The device comprises a base and a water tank, the water tank is mounted on the outer wall of the front end of the base; a rotating seat extending upwards is arranged in the outer wall of the upper end of the base; a rear cylinder is arranged on the upper side of the rotating seat; the rear fan blades on the crankshaft are driven by a working motor in the rear cylinder to rotate quickly; meanwhile, a mounting shaft and the front fan blades are driven to rotate; then, a water pump can be used for pressurizing the water and conveying the water into an annular pipe; finally, water mist is sprayed forwards through a spray head; the front fan blades can blow the water mist farther; meanwhile, a large spraying rangeis formed through the round holes in a diffusion cylinder, sprayed water mist and dust particles in the air are combined and agglomerated, and finally fall to the ground under the action of gravity,so that the purpose of dust removal is achieved, and by additionally arranging the diffusion cylinder and the front fan blades, the range of the sprayed water mist is wider, and the distance is longer.

The invention discloses a rotatable dust-settling spraying device for a construction site. The rotatable dust-settling spraying device comprises a supporting sliding plate, adjustable ground rods, a loading plate, a sleeve, a rotary spraying drum and a driving unit, wherein the supporting sliding plate is of a circular plate-like structure; the surface of the supporting sliding plate is fixedly connected with support rods; the bottom ends of the support rods are hinged with the adjustable ground rods; the surfaces of the support rods and the adjustable ground rods are fixedly connected with connecting blocks; the outer sides of the connecting blocks are buckled with buckle plates; the top ends of the support rods are fixedly connected with the bottom surface of the loading plate; a plurality of enclosure rods are fixedly connected with the surface of the loading plate; the top ends of the plurality of enclosure rods are fixedly connected with the bottom end of an annular overlapping plate; the rotary spraying drum rotates under the driving by the driving unit so as to achieve regional spraying and improve dust-settling spraying efficiency, and better dust-settling effect is obtained; and a multi-gear motor is employed as a driving motor, so a spraying range can be adjusted through the adjustment of rotation speeds and cooperation with a water pump.

The invention discloses a highly-efficient dust-removing fog gun machine. The highly-efficient dust-removing fog gun machine comprises a fog gun machine body, wherein the outer surface of one side ofthe upper end of the fog gun machine body is fixedly provided with a supporting panel; the outer surface of the upper end of the supporting panel is fixedly provided with a rotating disk; the outer surface of the upper end of the rotating disk is fixedly provided with a supporting column; and the outer surface of the upper end of the supporting panel is fixedly provided with a supporting frame. According to the invention, through the rotating disk, all-round spraying can be performed, so the effect of dust removal achieves the most ideal effect; through a maintenance toolbox, when the highly-efficient dust-removing fog gun machine encounters an outage or an emergency situation needing maintenance in the process of working, maintenance tools placed in the maintenance toolbox can be timely taken out for maintenance, so the working efficiency of the highly-efficient dust-removing fog gun machine is greatly improved; and through a foreign matter isolation cover, sticky foreign matters canbe directly adsorbed onto the foreign matter isolation cover, so the highly-efficient dust-removing fog gun machine can be conveniently disassembled and cleaned for cyclic use and is favorable for people to use.

The invention discloses an intelligent air-assisted multi-flow dust suppression device. The intelligent air-assisted multi-flow dust suppression device comprises a barrel body, an air supply assembly,a spraying assembly and a pipeline assembly, wherein the barrel body comprises an air supply section and an atomization section which are located at two ends of the barrel body correspondingly; an air supply opening is arranged on the air supply assembly which is arranged on the air supply section; the air supply opening faces the atomization section; a spraying opening is arranged on the spraying assembly which is arranged on the atomization section; the direction of the spraying opening is the same as the direction of the air supply opening; the pipeline assembly comprises an air inlet pipe, a liquid inlet pipe and a mist amount adjusting valve; the air inlet pipe and the liquid inlet pipe are connected with the spraying opening; a fluid mixing mechanism is arranged on the liquid inletpipe; and the air inlet pipe and the liquid inlet pipe communicate with the mist amount adjusting valve. According to the invention, the flow rate of spraying and the size of atomized particles can beeffectively adjusted through an atomization adjuster, so the adsorption force on particles with a particle size of 5-30 microns in the air is increased, and the effect of dust reduction is effectively improved; and a variety of fluids can be mixed through the fluid mixing mechanism, so the functionality of the dust suppression device is effectively improved.

The invention discloses a high rod power-free rotary sprayer, and relates to dust control equipment used in outdoor coal yards and bulk cargo storage yards in ports. The high rod power-free rotary sprayer comprises a base; the middle part of the upper part of the base is connected with an outer tube which is vertically arranged; the diameter of the upper end of the outer tube is small while the diameter of the lower end is large; a vertical water pipe penetrates into the outer tube; the upper end of the vertical water pipe penetrates through the outer tube and is then connected with a swivel joint; the inner cavity of the swivel joint is communicated with the vertical water pipe; the swivel joint is connected with two first transverse water pipes; the water inlet ends of the two first transverse water pipes are respectively communicated with the inner cavity of the swivel joint; the water outlet ends of the two first transverse water pipes are respectively connected with an atomizing nozzle; the atomizing nozzle on one first transverse water pipe and the atomizing nozzle on the other first transverse water pipe are symmetrically arranged. The high rod power-free rotary sprayer is arranged in the center of a section zone of a storage yard or a coal yard; the rotary sprayer sprays water from the center to the outside, 0-360-degree covering can be realized, and covering radii are overlapped.

The invention discloses a three-section multistage spraying dust reducing system for tunnel dust. The dust reducing system is composed of multiple spraying devices identical in structure. Each spraying device comprises a water conveying pipeline, and the water conveying pipelines of the multiple spraying devices are connected with a main water conveying pipe. The main water conveying pipe is connected with a vertical galvanization water pipe, and the top of the vertical galvanization water pipe is connected with a horizontal galvanization water pipe. Multiple tee joints are arranged on the vertical galvanization water pipe and the horizontal galvanization water pipe at intervals. A rotary spray head is arranged on each tee joint. According to the device, running of a slag transporting truck is not influenced in the dust reducing process, the device is light and can be randomly moved in a tunnel, the spraying covering range is far wider than that of a currently taken dust reducing measure, and a better dust reducing effect can be achieved.

The invention discloses a spray type dust fall device. The spray type dust fall device comprises a water storage device, a water pump, a rotary device and a spraying device. A water outlet of the water storage device is connected with a water inlet of the water pump. A water outlet of the water pump is connected with a water inlet of the spraying device. The water pressure at the water outlet of the water pump ranges from 4MPa to 15MPa. The spraying device comprises a spray head body, a short-range spray nozzle and a remote spray nozzle. The short-range spray nozzle and the remote spray nozzleare fixed to the front end of the spray head body from top to bottom in sequence. The rotary device is in rigid connection with the spray head body and is used to enable the front end of the spray head body to horizontally rotate clockwise or anticlockwise. According to the spray type dust fall device, because the water storage device, the water pump, an action mechanism and the spraying device are used in cooperation, sprayed water mist is uniform in mist droplets, large in density and broad in coverage area; and the spray type dust fall device is especially suitable for water mist spray ofa wide range.

The invention provides a cutting tooth coal-cutting external spraying device of a coal cutter. The spraying device comprises a coal cutter body, a lifting device and a spraying pipe, wherein the lifting device comprises a spraying arm, a fixed arm and a hydraulic cylinder; the praying arm, the fixed arm and the hydraulic cylinder are positioned in a triangle mode; one end of the spraying arm is movably connected with one end of the fixed arm, the other end of the fixed arm is movably connected with one end of the hydraulic cylinder, a piston rod is arranged at the other end of the hydraulic cylinder, and the other end of the spraying pipe is movably connected with the piston rod; the lifting device is in welded connection with the outer side of the front end of an external protective frame of a cutting motor of the coal cutter through the fixed arm; the spraying pipe is fixed on the top of the spraying arm and is a hollow seamless steel pipe, the bottom of the spraying pipe is connected with a water supply pipe, and a nozzle is arranged on the top of the spraying pipe; multiple nozzles are arranged on the surface of the periphery of the spraying pipe. According to the device, the lifting angle of the spraying pipe can be controlled in real time, the dust fall efficiency is improved, and water resources are saved.

The invention discloses a spraying dust suppression vehicle based on the air curtain technology. The spraying dust suppression vehicle comprises a vehicle frame, a water tank and a spraying device, and the water tank and the spraying device are arranged on the vehicle frame. The spraying device comprises a base, a support and a sprayer, the base is arranged on the vehicle frame, and the sprayer is arranged on the base through the support. The sprayer comprises a draught fan, a spraying cylinder, an atomization nozzle and an air curtain machine, the end, corresponding to the blade end, of the draught fan is connected with the spraying cylinder, the spraying cylinder is a cavity, and the atomization nozzle and the air curtain machine are arranged at the other port of the spraying cylinder. According to the spraying dust suppression vehicle, the speed of mist drops is gradually increased, the atomization degree is improved, mist drops with the diameters about ranging from 50 microns to 150 microns can be generally formed during atomization, dispersion of dust of small particle sizes can be effectively suppressed, suspension dust in air is greatly reduced, and haze sources are fundamentally reduced.

The invention belongs to the technical field of energy conservation and environmental protection, and particularly relates to an air purifying and filtering device for energy conservation and environmental protection. In allusion to the problems that an existing air purifying and filtering device is simple in design structure, poor in dust falling effect in the purifying process and relatively poor in filtering effect, the invention proposes the following scheme: the device comprises a base, the outer wall of the top of the base is provided with a supporting rod, a shell is arranged on the outer wall of the top of the supporting rod, two vertically-arranged baffles are arranged on the outer wall of the top of the shell, inclined holes are formed in the outer walls of the baffles, the samesquare frame is arranged on the outer walls of the opposite sides of the two baffles, trapezoidal holes are formed in the outer walls of the periphery of the square frame, a servo motor is fixed to the outer wall of one side of the shell through screws, and an output shaft of the servo motor is connected with a rotating roller through a coupling. Air and water mist can be evenly mixed, and the water mist can make full contact with dust, so that the good dust falling effect is achieved, and the air filtering and purifying effect is good.

The invention relates to a dust suppression method of slope excavation. The dust suppression method of slope excavation comprises the following steps of step 1, arranging a high water level reservoirwith height of 250 m from the ground near dam abutments on the two banks; step 2, arranging a centrifugal water pump on the high water level reservoir and connecting the centrifugal water pump with awater source through a pipeline; step 3, placing a plurality of steel wire ropes above an excavation area between the dam abutments on the two banks; and step 4, connecting a plurality of spraying water pipes with a water tank, connecting the water tank with the high water level reservoir, fixedly connecting each spraying water pipe with each steel wire rope, placing each spraying water pipe abovethe excavation area, laying a plurality of rotating nozzles, shower heads, valves and the like on each spraying water pipe. The dust suppression method of slope excavation has the superior effects that the operation of a dust suppression technology can obtain a good dust suppression effect, the construction environment is greatly improved so that a site construction personnel obtain a good working environment, and the occupational health of the construction personnel is guaranteed.

The invention provides a blasting dust-falling blasting quilt method. The method comprises the following steps that (1) before blasting, and a device containing a water absorption functional material is mounted on a blasted site in a covering mode; and (2) after mounting is completed, water is sprayed to the water absorption functional material of the device to soak the water absorption material, and then blasting is carried out. According to the blasting dust-falling blasting quilt method, the effects of flying stone prevention and dust prevention are achieved at the same time in the blasting process, the device is simple in structure and capable of being repeatedly used, the dust falling effect is extremely good, and environmental pollution and harm to constructors are effectively reduced.

The invention relates to the technical field of building dust falling equipment, and discloses a dust falling device for indoor building construction. The dust falling device comprises a water tank, the bottom of the water tank is fixedly connected with the top of a handcart, a baffle is fixedly installed at the portion, located at the top of the handcart, of one side of the water tank, and a first installing tank is fixedly installed at the top of an inner cavity of the water tank; a water pump is fixedly installed inside the first installing tank, the input end of the water pump is fixedly connected with one end of a water pumping pipe, a sucking ball is fixedly installed at the bottom of the water pumping pipe, filtering balls are movably sleeved with the sucking ball, an indicating device is arranged inside the water tank, and a lower fuel tank is fixedly installed at the top of the water tank. According to the dust falling device for indoor building construction, through the arrangement of a fixation box, a third sleeving plate, pushing plates, a circulating hole, spraying heads and spray holes, the spraying heads can rotate to conduct spraying in different directions, the working range of dust falling is expanded accordingly, and the dust falling effect is improved.

The invention discloses an intelligent construction site dust falling device, and belongs to the technical field of construction sites. The intelligent construction site dust falling device comprisesa moving box, a water storage tank is fixedly mounted in the moving box; meanwhile, two access ports of the water storage tank are respectively positioned on two sides of the outer wall surface of themovable tank; a spraying mechanism is arranged on one side of the upper surface of the moving box; according to the intelligent construction site dust falling device, the adjusting handle is rotatedas required so that the port angle of the shell is adjusted; then the water suction pump is started to pump water; then the water is sprayed out through a water pipe, a lead-out pipe and an atomizingnozzle, the blowing fan is started at this moment, blowing is performed with the blowing fan, and in the spraying process, the guide-in cover is placed at the designated position, then the exhaust fanis started, the exhaust fan is used for exhausting air, dust is sucked into the purification box and then passes through the multiple layers of filter elements in sequence, and therefore the dust ispurified and filtered, the dust falling effect is better, and the dust falling efficiency is higher through spraying dust falling and purifying and filtering of the dust.

The invention discloses an environmental-protection anti-raise-dust mullite screening system. The system comprises a screening machine; multistage screen nets are arranged in the screening machine; vibration rods are arranged on the two sides of the multistage screen nets; bounce rods are arranged on the sides, positioned on the multistage screen nets, of the vibration rods; concave fixed frames are fixedly mounted on the sides, positioned on the bounce rods, of the side wall of the screening machine in the horizontal direction; the upper and lower end surfaces of the bounce rods are elastically connected with the concave fixed frames through springs; and gear bars are arranged on one sides of the bottom ends of the vibration rods. In the environmental-protection anti-raise-dust mullite screening system, the gear bars are driven to alternately move up and down by using engaged connection of a first half tooth disc and a second half tooth disc with the gear bars, the bounce rods move upand down in the concave fixed frames, and the springs are synchronously bounded up and down, so that the multistage screen nets move up and down for screening to prevent influence on the service lifeof the screening machine by looseness of other modules due to use of a vibration motor.

The invention relates to a dust removal device for building construction, which comprises a box body, and an atomizing nozzle, a metal water tank, a second filter screen and a water pump are arrangedin the box body; an electromagnetic coil is arranged outside the metal water tank; a high-temperature radiation heat dissipation coating is arranged on the inner surface of the metal water tank; a temperature sensor and a pressure sensor are arranged in the metal water tank; a cleaning nozzle for cleaning the inner surface of a first filter screen is arranged on an air outlet, a water mist air duct is arranged at the top of the box body, a plurality of fans are arranged in the water mist air duct, at least one water mist nozzle is arranged between every two fans, and the water mist nozzles areconnected with a spraying water pipe. The device has the advantages of being good in dust falling effect, high in automation degree, water-saving, electricity-saving, simple in structure, convenientto use and the like.