55results about How to "Expand the range of dust suppression" patented technology

The invention discloses a dust suppression device used in the construction site. The dust suppression device comprises a bottom plate, a casing, a water tank, an atomizing spray pipe, a dust suction cavity and a cylinder, wherein the casing is fixedly mounted at the upper end of the bottom plate, the dust suction cavity is formed in the inner side of the casing, a motor is arranged at the upper end of the dust suction cavity, and the output end of the motor is fixedly connected with a rotating shaft; the cylinder is fixedly mounted at the right end of the dust suction cavity, a piston is glidingly connected into the cylinder, the upper end of the piston is fixedly connected with a threaded rod, and the other end of the threaded rod is connected into a threaded sleeve in a threaded manner;the water tank is arranged on the left side of the dust suction cavity, the lower end of the water tank is fixedly connected with the bottom plate, and a water suction pump is arranged at the upper end of the water tank. According to the dust suppression device, dust suppression treatment is carried out in two modes simultaneously, so that dust suppression efficiency is high, and dust suppressioneffect is good; treated gas is introduced into a hollow cavity of a first rotating rod, the first rotating rod is driven to rotate under the action of arc-shaped spray pipes, therefore, the dust suppression range is enlarged, and energy is sufficiently utilized.

The invention belongs to the technical field of highway construction, and in particular relates to a watering and dust lowering device for highway construction. The device solves the problem that theexisting watering device for highway construction is small in watering range. The device comprises a base. The bottom four corners of the base are connected with an electric push rod machine by bolts.One side of the top of the base is connected with a support leg by bolts, the top of the support leg is connected with a hydraulic cylinder by bolts, and a piston rod of the hydraulic cylinder is connected with a mounting platform by bolts. The device is provided with the hydraulic cylinder, the mounting platform and an atomizing nozzle. During highway construction, a high pressure water pump presses water inside a water storage tank into a three way pipe through a suction pipe. A processor controls a first electromagnetic valve and a second electromagnetic valve to be open. A high-pressure nozzle and the atomizing nozzle respectively spray water and lower dust on the highway surface and in the air. A blowing fan can blow water mist to a long distance. The processor controls the hydrauliccylinder to drive lifting and lowering of the mounting platform, can adjust the height of a water cannon, and expands the dust lowering range.

The invention provides a dust-reduction spraying device for tunnel construction. The dust-reduction spraying device comprises a base and is characterized in that a water tank is fixedly mounted on oneside of the top of the base, connecting blocks are welded to two sides of the inner cavity of the water tank, a first filter screen is arranged between the two connecting blocks, the bottom of the first filter screen contacts with the tops of the connecting blocks, clamp blocks are welded to two sides of the bottom of the first filter screen, one sides of the clamp blocks are clamped with the slots of the connecting blocks, a second filter screen is fixedly mounted at the top of the first filter screen, a sealing plate is hinged to one side of the top of the water tank through hinges, one side of the sealing plate is provided with a locking mechanism, a water outlet in one side of the water tank is fixedly connected with a water pump through a pipeline, and an atomizing mechanism is fixedly mounted on one side of the water pump through a pipeline. The dust-reduction spraying device has the advantages that impurities in water can be filtered through the first filter screen and the second filter screen, so that the device can use water from rivers nearly without causing blocking, and the adaptability of the spraying device is increased.

The invention discloses a novel construction site dust falling device for constructional engineering. The device comprises a base; wheels are arranged at the lower end of the base; a side plate, a water tank and a lifting table are arranged at the upper end of the base; a connecting block is arranged on one side of the side plate; a fixed table is arranged at the upper end of the base; a sprayingdevice is arranged at the upper end of the fixed table; a control box and a lifting frame are arranged in the fixed table; a water outlet and a water valve are arranged in the control box; a hose is arranged on one side of the control box; a fixed plate is arranged at the upper end of the lifting frame; a rotating plate is arranged at the upper end of the fixed plate; and connecting pipes are arranged in the fixed plate and the rotating plate. According to the novel construction site dust falling device for constructional engineering, the dust falling height is controlled through the arrangedlifting table; the arranged spraying device swings up and down and left and right, so that the dust falling range is enlarged, and better use prospects are brought.

The invention discloses a mine downhole dust monitoring and control system, and relates to the technical field of intelligent monitoring. A dust monitoring module is used for monitoring the downhole dust concentration in real time, and transmitting specific data of the downhole dust concentration to a switchboard; a dust eliminating module is mounted in the downhole and used for decreasing downhole dust concentration values; the dust monitoring module comprises dust concentration sensors, position sensors and a single chip microcomputer; the dust concentration sensors and the position sensorsare distributed at multiple downhole monitoring points and used for detecting the dust concentration on line and determining the specific positions of the dust concentration values at all the monitoring points correspondingly; and the output ends of the dust concentration sensors and the position sensors are both connected to the input end of the single chip microcomputer. On-line and real-time detection and control of the mine dust concentration can be achieved, the current situations that dust influences downhole operation in coal mine downhole operation places, improper mist spray is caused, consequently, coal is lost along with water, and water resources are wasted are avoided, and safe production is guaranteed.

The invention discloses environment-friendly rapid dust falling equipment for building construction and a dust falling method, and relates to the technical field of building construction dust falling equipment. The environment-friendly rapid dust falling equipment comprises a box body, and an upper shell, a pair of side plates and a baffle are installed at the top of the box body; a height regulating mechanism is arranged in the shell; and a plurality of first spray heads and second spray heads which penetrate through through holes and are uniformly distributed are arranged on a spray head retainer. The invention further discloses a rapid dust falling method for environment-friendly building construction. Height adjustment can be carried out, higher flying dust can be covered, an air bellow can swing by arranging a cam, a baffle and a return spring, the dust falling range is increased, the dust falling effect is improved, the size of water spray mist particles can be adjusted according to the size of the flying dust by arranging the first spray head and the second spray head of different specifications, dust falling is effectively conducted on flying dust of different sizes, meanwhile, water is saved, and the environment-friendly effect is achieved.

The invention discloses an underground coal mine height-adjustable spraying dust falling device. The underground coal mine height-adjustable spraying dust falling device comprises a movable mounting plate, a water storage tank and a first mounting box are correspondingly and fixedly mounted on the upper surface of the movable mounting plate, a first water pump is fixedly mounted on the inner wall of the first mounting box, a connecting pipe is fixedly connected to the water outlet end of the first water pump, the end, away from the first water pump, of the connecting pipe extends into the water storage tank, the water inlet end of the first water pump communicates with an external water source through a water pipe, and a two-way motor and a protection box are correspondingly and fixedly mounted on the upper surface of the water storage tank. According to the underground coal mine height-adjustable spraying dust falling device, by arranging the water storage tank, the two-way motor, the protection box, a vertical threaded column, an internal thread adjusting cylinder, a first bevel gear and a second bevel gear, in the actual use process of the underground coal mine height-adjustable spraying dust falling device, the two-way motor can be started according to the actual situation of an underground coal mine, so that the height of an atomizing nozzle is adjusted, and the practicability of the underground coal mine height-adjustable spraying dust falling device is improved.

The invention relates to the technical field of road construction monitoring auxiliary apparatuses, and especially relates to a dust monitoring apparatus for road construction. The apparatus improvesthe dust concentration monitoring range to obtain an accurate monitoring result and improve the practicability, and can effectively treat dusts and ensure continuous proceeding of the construction work in order to protect the construction environment, and the fixed effect of the apparatus is improved to avoid damages of a complex construction environment to the apparatus. The apparatus includes abase, a support device, a monitoring box, dust sensors, a display, an encoder, a decoder, a central processor and a power supply device, and further includes a first motor, a support block, a rotatingshaft, a left mounting rod, a right mounting rod, a transmission shaft, a left ball bearing, a right ball bearing, a first bevel gear, a second bevel gear, a water tank, a high pressure pump, a flexible tube, a left support plate, a right support plate, a pallet, a second motor, a lead screw, a slide block, a connecting plate, a spray head, a cylinder, an upper ball bearing, lower threaded rods,lower threaded tubes, anchor tips and rotating handles.

The invention belongs to the technical field of dust treatment and especially relates to blasting dust purification treatment equipment. The invention aims to overcome the problem that an existing engineering blasting dust degradation treatment device is limited in effective dust absorption range and is thus low in use reliability. The blasting dust purification treatment equipment comprises a bottom plate, wherein four universal wheels are arranged at the bottom of the bottom plate; brake pads are arranged on the four universal wheels; an annular block, a liquid tank, a water tank and two push handles are fixedly connected to the top of the bottom plate; a rectangular box is rotationally installed at the top of the annular block; one side of the rectangular box communicates with a dust suction port; the dust suction port is of a horn structure; a supporting rod is fixedly installed at the top of the rectangular box; an atomizing cylinder is rotationally installed at the top of the supporting rod; the atomizing cylinder is connected with an air blowing structure; the top of the water tank communicates with a water pump; and a water outlet of the water pump communicates with an atomizer. The blasting dust purification treatment equipment is simple in structure and convenient to operate, a dust collection and dust suppression range can be expanded, and use performance is improved.

The invention belongs to the technical field of dust settling devices, particularly relates to a high-altitude spraying dust-settling device for a construction site, and aims at the problems that thespraying dust-settling device in the prior art cannot adjust the size of the sprayed water mist particles and thus cannot perform spraying dust settling according to the pollution degree of the construction site and then the spraying dust settling effect is poor. The following scheme is put forward: the device comprises an air blowing cylinder and a water tank, air outlets are formed in the two sides of the outer wall of the top of the air blowing cylinder, a corrugated pipe is inserted into the inner wall of each air outlet, the end, away from the air blowing cylinder, of the corrugated pipeis sleeved with a spraying cylinder, the section of the end, away from the corrugated pipe, of the spraying cylinder is of a trapezoidal structure, a first disc is fixed to the outer wall of the spraying cylinder through screws, and large water outlet holes annularly distributed at equal intervals are formed in the edge of the outer wall of the first disc. According to the spraying dust-settling device, the flowing speed of water can be effectively increased, the size of sprayed water mist particles can be conveniently adjusted, spraying dust settling can be conducted according to the pollution degree of the construction site and the spraying dust settling effect is good.

The invention provides dust falling equipment for building engineering construction. The dust falling equipment for building engineering construction comprises a bottom plate; four universal wheels which are symmetrically and fixedly mounted at the bottom of the bottom plate, and the four universal wheels are distributed in a rectangular shape; a water cavity which is formed in the bottom plate; a mounting cavity which is formed in the bottom plate; a water pump which is fixedly mounted in the mounting cavity, and a water inlet of the water pump is communicated with the water cavity; a cavity which is formed in the bottom plate, and the cavity is communicated with a water outlet of a water pump; and a rotating rod which is installed in the cavity in a sealed and rotating mode, and the top end of the rotating rod extends out of the cavity. The dust falling equipment for building engineering construction has the advantages of being convenient to use, flexible to use, capable of repeatedly falling dust at different heights and good in dust falling effect.

The invention discloses a road watering dust fall vehicle used for a building construction site. The vehicle comprises a supporting board, a carrying frame is fixedly installed at the bottom, a watertank and a water pump communicating with the water tank through a pipeline are fixedly installed in the carrying frame, two lifting frames are vertically and fixedly installed at the bottom of the carrying frame, and a cantilever beam is horizontally and fixedly installed on the left side wall of another supporting board. Left-right reciprocating motion of a transmission rod is achieved through clockwise and anticlockwise alternate rotation of a transmission frame board, so that a first water spraying disc and a second water spraying disc swing back and forth, tap water sprayed out from the first water spraying disc and the second water spraying disc makes full contact with dust in the air, the dust fall range is greatly increased, meanwhile, a certain speed reduction effect is achieved through connection of a worm wheel and a worm, and the swinging stability of the second water spraying disc and the first water spraying disc is improved; and meanwhile, walking wheels can rotationallyroll, the vehicle can move forwards and spray water to make the dust fall at the same time, the dust fall range of the construction site road dust is enlarged, and a dust fall effect is better.

The invention discloses a dust falling device for house building construction. The device is used for solving the problems of inconvenient movement and troublesome dust falling work of a dust fallingmechanism. The device comprises a bottom plate and a water tank, a fixing base is fixed to the outer wall of the top of the bottom plate through bolts, a socket is rotationally inserted into the outerwall of the top of the fixing base, the water tank is fixed on the top outer wall of the socket through bolts, two L-shaped plates are fixed to one side of the outer wall of the top of the bottom plate through bolts, a handle is fixed to one end of each L-shaped plate through a bolt, the same motor box is fixed to one ends of the two L-shaped plates through bolts, the motor box is located over the water tank, and a motor is fixed to the inner wall of the bottom of the motor box through bolts. Two-stage linkage is carried out through the motor, namely, a transmission shaft is driven to rotatethrough rotation of the motor, a liquid can be stirred through a stirring rod, and the whole water tank can be driven to rotate through a sleeve rod and a clamping rod, so water bodies can be evenly mixed, and all-directional dust falling can be carried out.

The invention belongs to the technical field of hydraulic engineering, and particularly relates to a dust falling machine for a hydraulic engineering construction site. In allusion to the problems that an existing dust falling machine is usually simple in structure, single in function and small in dust falling range is small, workers need to frequently move to achieve the purpose of large-area dust falling, time and energy are wasted, and difficulty is brought to the work of workers, the invention proposes the following scheme: the dust falling machine comprises a bottom plate, four universalwheels are rotationally mounted at the bottom of the bottom plate, the top of the bottom plate is fixedly connected with a shell, a motor is fixedly mounted at the top of the shell, the top of the shell is fixedly connected with a gear ring, and a water pump is fixedly installed on the bottom inner wall of the shell. By arranging a cam and the motor, the dust falling machine is reasonable in structure and rich in function, the dust falling range is further widened, the purpose of large-area dust falling can be achieved without frequent movement of workers, time and labor are saved, the operation is convenient and fast, and the dust falling machine is practical.

The invention discloses a construction environment monitoring and early warning method based on a BIM and sensor technology, and belongs to the technical field of environment monitoring. The construction environment monitoring and early warning method based on a BIM and sensor technology comprises a monitoring and early warning system. The monitoring and early warning system comprises a data acquisition module. The data acquisition module is connected with a plurality of sensors installed in a construction area. The data acquisition module is connected with a mobile platform; a processor is arranged in the mobile platform; an alarm device connected to the processor, the processor is connected with a local database, a 4G network communication module and a wireless signal communication module; the 4G network communication module is connected with a BIM platform; the BIM platform comprises a platform database, the platform database is connected with a terminal display system, remote and on-site monitoring of environmental parameters of a construction area can be achieved, a monitoring device is arranged on the construction site, early warning is conducted according to a threshold value, and a sensor switch of the construction area can be conveniently controlled.

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 discloses a dust suppression device. The device comprises a base, wherein moving wheels are connected to four corners of the bottom end of the base; an electric box is arranged at the top of the base; a water pump is connected to the inner side of the electric box; an external water pipe is connected to one side of the water pump; a fog gun support base is arranged at the top of theelectric box; fog gun supports are connected to the two sides of the top end of the fog gun support base; and a hydraulic push rod is arranged at the top end of the fog gun support base. The device isprovided with a gear ring, a gear, a motor, an annular sliding groove, an annular sliding block, a supporting circular ring and a rotating seat; when a fog gun sprays for dust suppression, a rotating seat and the electrical box at the top end of the rotating seat can be conveniently rotated so as to allow the fog gun at the top of the electrical box to be rotated in a construction site to perform spraying dust suppression, so the dust suppression range of the dust suppression device is widened; and the fog gun does not need to be manually rotated, and an automation degree is high, so the working efficiency of the dust suppression device is improved.

The invention discloses a high-efficiency metal part grinding and dust collection device. The high-efficiency metal part grinding and dust collection device comprises a machine body. The machine bodyis internally provided with a working cavity with a forward opening. The working cavity is internally provided with a grinding assembly used for grinding a metal part. The grinding assembly comprisesa rotary shaft rotatably connected with the inner wall of the left side of the working cavity and extending left and right. A fixed block is in left-right sliding connection with the inner wall of therear side of the working cavity. During operation, the high-efficiency metal part grinding and dust collection device can grind the upper surface and the lower surface of the metal part through the grinding assembly and reduce the workload of working staff, can spray water to the upper surface of the metal part for dust falling through a water spray and dust fall assembly during grinding, expandsthe dust falling range, recycles water and splashed scraps, can recycle scraps generated during grinding through a dust collection assembly, can drive the part to intermittently rotate through a switching assembly, can realize switching of the upper and lower surfaces of the part to be ground and improves the grinding efficiency.

The invention discloses a road watering dust fall vehicle used for a building construction site. The vehicle comprises a supporting board, a carrying frame is fixedly installed at the bottom, a watertank and a water pump communicating with the water tank through a pipeline are fixedly installed in the carrying frame, two lifting frames are vertically and fixedly installed at the bottom of the carrying frame, and a cantilever beam is horizontally and fixedly installed on the left side wall of another supporting board. Left-right reciprocating motion of a transmission rod is achieved through clockwise and anticlockwise alternate rotation of a transmission frame board, so that a first water spraying disc and a second water spraying disc swing back and forth, tap water sprayed out from the first water spraying disc and the second water spraying disc makes full contact with dust in the air, the dust fall range is greatly increased, meanwhile, a certain speed reduction effect is achieved through connection of a worm wheel and a worm, and the swinging stability of the second water spraying disc and the first water spraying disc is improved; and meanwhile, walking wheels can rotationallyroll, the vehicle can move forwards and spray water to make the dust fall at the same time, the dust fall range of the construction site road dust is enlarged, and a dust fall effect is better.

The invention discloses a dust setting device used for ore extraction, and relates to the technical field of ore extraction. The device comprises a base, wherein a water inlet pipe is fixedly connected with the front side of the base, the water inlet pipe is communicated with a water delivery hose, and a second adjusting motor is installed in the base. When the dust setting device used for ore extraction is in use, water is delivered into spray heads through spraying pipes, meanwhile, rotating motors drive rotating rings to rotate, thus the spray heads spray the water to an air vent at multiple angles, water discharging is made evener, through the second adjusting motor, orientation of a dust setting cylinder is adjusted, and through a first adjusting motor, an elevation angle of the dustsetting cylinder is adjusted, so that multi-angle large-scale dust setting is completed, compared with an existing dust setting device, the novel dust setting device used for ore extraction adopts a wind and water mixing method, the dust setting range is large, the maneuverability is good, the dust setting range can be adjusted freely, meanwhile, the requirements of different use scenes are met, and the novel dust setting device used for ore extraction is simple and convenient to use.

The invention relates to a warning board, in particular to a warning board used for bridge construction and aims at achieving the technical purposes that the warning board used for bridge constructionis unlikely to fall and has a dust fall function. In order to achieve the above the technical purposes, the warning board used for bridge construction is provided and comprises a box body and the like; and a fixing device is installed in the box body, an up-down movement device is installed at the top of the box body, and a warning board body is connected to the up-down movement device. The warning board can be fixed through the fixing device, the warning board body can be driven to move up and down through the up-down movement device to warn people that bridge construction is conducted in front, dust can fall through the dust fall device, and through the up-down movement device, the dust fall range of the dust fall device can further be increased, and a dust fall effect is improved.

The invention discloses a construction site high-altitude water mist dust fall apparatus. The structure of the apparatus comprises a dust fall device, a control box, a heat dissipation window, a fixedframe, a support rack, an observation window, a hinge, a handle, a box door, a lock, wheels, an upper plate cover, a rotating support, a fixed rod, a sprayer and a water tube, the right end of the control box is welded to the left end of the dust fall device, the control box is a hollow cuboid structure, the front end of the dust fall device is in clamping slot connection with the rear end of thefixed frame, the outer wall of the observation window is bonded to the inner wall of the fixed frame, the rear end of the heat dissipation window is in clamping slot connection with the front end ofthe control box, and the bottom of the upper plate cover is fixedly connected with the top of the dust fall device by screws. The structure is provided with the dust fall device, and the apparatus isprovided with the lifting device, so the sprayer can perform spraying dust fall processing on high-altitude dust, and the dust fall range is greatly enlarged, thereby the construction environment is further improved; and a buffer greatly decentralizes the borne pressure of a top rod, and prolongs the service life.

The invention provides energy-saving and environment-friendly building construction road dust fall monitoring equipment, the energy-saving and environment-friendly building construction road dust fall monitoring equipment comprises a support, a monitor is slidably inserted into the top of the support, a dust fall mechanism is fixedly connected to the right end of the monitor, and the dust fall mechanism comprises a sealing frame; the surface of the support is movably connected with two symmetrical electromagnetic elastic rods, and hinge rods are movably connected between the electromagnetic elastic rods and the sealing frame. According to the energy-saving and environment-friendly building construction road dust fall monitoring equipment, equipment operation is correspondingly controlled through the turbulent flow capacity of a vehicle, multi-range spraying dust fall and depth monitoring are conducted, a photovoltaic panel is synchronously controlled to be stored in the bottom of a protection groove in the dust fall period, it is guaranteed that the photovoltaic panel obtains enough protection duration through the time delay of heat conduction, and the energy-saving and environment-friendly building construction road dust fall monitoring equipment is safe and reliable. Therefore, dust falling is more energy-saving and environment-friendly, monitoring comprehensiveness is improved, and a protection mechanism for the photovoltaic panel is effectively enhanced.

The invention discloses a return belt cleaning and driving station dust falling device. The device comprises a water tank with a hollow structure, a base is fixedly mounted at the bottom of the watertank, a water suction pump is fixed to the top of the water tank through threads, a water inlet end of the water suction pump extends into the water tank and is fixedly communicated with a first hose,the bottom end of the first hose is communicated with and is fixedly provided with a suction head, a conical water inlet pipe is arranged on one side of the water tank, one end of the conical water inlet pipe extends into the water tank, a water outlet end of the water suction pump is communicated with and is fixedly provided with a connecting pipe with the bottom end being of a plugging structure, and a conical dust collection cover is fixedly installed on one side of the connecting pipe. The device is reasonable in design and convenient to operate, up-and-down circulating swing in the waterspraying process of the water spraying head is facilitated, the dust removal range is enlarged, the conical dust collection cover is arranged, so that dust is conveniently captured to the side wall of the conical dust collection cover in the water spraying process of the water spraying head, the amount of the dust dissipated to the periphery is reduced, and the use requirement is met.

The invention discloses a water mist dust falling device for a coal mine. The device comprises a shell, a supporting rod, walking wheels, a fixed rod, a guide shell, a collecting shell, a fixed frame,a motor, fan blades, a vertical rod, a transverse rod, a first limiting rod, a limiting plate, a second limiting rod, a mounting plate, a first water distribution pipe, a second water conveying pipe,a vertical plate, a second water distribution pipe, an inclined pipe, a transverse pipe, a nozzle, a transmission rod, a water tank, a high-pressure water pump, a five-way pipe, a first water conveying pipe, a mounting rod, a top plate, a dust shield, a bottom plate and a dirt storage shell. An air draft dust falling mechanism located on the shell can suck water mist water drops with dust in theair around the device into the dirt storage shell in the shell, the whole water mist dust falling process is accelerated, and the device is particularly suitable for areas, needing rapid dust falling,in a coal frame. Omnibearing dust falling is conducted on the space to be subjected to dust falling through the primary dust falling mechanism and the secondary dust falling mechanism, and the dust falling area is large; meanwhile, the two dust falling mechanisms are distributed in a high-low gradient mode, and the concentration of water mist in the space is increased.

The invention relates to a remote self-control type spraying dust-settling system which comprises a water storage tank, a water supply pump, a dust-settling spray column, a control box and a remote controller; a water injection pipe connected with an urban waterway is arranged on the upper portion of the water storage tank, and an electromagnetic control valve used for controlling on-off of a waterway is arranged on the water injection pipe; the water supply pump is arranged in the water storage tank and connected with a water supply pipeline; the dust-settling spray column for dust-settling treatment comprises a stand column, a rotating seat and a servo drive mechanism, wherein an atomizing nozzle connected with the water supply pipeline is fixed on the rotating seat; an electric controlboard is arranged in the control box; and the remote controller is in wireless connection with the electric control board. The water supply pump and the servo drive mechanism are controlled to be started through the remote controller, the water supply pipeline supplies water to the atomizing nozzle at the moment, water mist is formed after treatment of the atomizing nozzle and sprayed outwards, and meanwhile the servo drive mechanism drives the rotating seat to rotate slowly, so that the sprayed water mist can be dispersed in all directions to conduct dust falling treatment, and the control process is simpler, more convenient and faster.

The invention discloses a dust falling fixing device for concrete strength detection and a dust falling method thereof. The dust falling fixing device comprises a base, a driving shell is arranged atthe upper end of the base; the driving shell is connected with a mounting cavity; a connecting mechanism is arranged between the mounting cavity and the driving shell; a driving mechanism is arrangedin the driving shell; an atomization nozzle is fixedly arranged in the mounting cavity, a liquid inlet pipe and an air inlet pipe of the atomization nozzle extend out of the side surface of the mounting cavity, one end of the liquid inlet pipe is connected with a water tank, one end of the air inlet pipe is connected with a pneumatic control valve, and the water tank and the pneumatic control valve are arranged on the base. By means of the swing process, the dust falling range can be enlarged, dust falling is more uniform, the dust falling fixing device is suitable for the dust falling processof large-area concrete, and air detection can be conducted in the dust falling environment.

The invention discloses a high-dust-raising building construction site efficient dust falling device and a using method thereof. The high-dust-raising building construction site efficient dust falling device comprises a bottom box, cross-country mechanisms, a first motor, a shaft rod, a spraying mechanism and a limiting mechanism, wherein the front side and the rear side of the bottom box are provided with the cross-country mechanisms facilitating easy passing of the device in the uneven bumpy terrain, the first motor is installed on the inner wall of the upper end of the bottom box, the upper end of the first motor penetrates through the bottom box to be connected with a seat plate, and side plates are installed in front and back of the upper end of the right side of the seat plate. According to the invention, the device can still easily move to a required closer position for dust falling on an uneven pothole construction site through the cross-country mechanisms, the dust falling device is more stable in the using process through the limiting mechanism, and the spraying range is widened by adopting the adjustable structure of the spraying mechanism, so that the dust falling effect is improved.