39results about How to "Handy dust" patented technology

The utility model relates to the technical field of cutting equipment and discloses cutting equipment for diamond machining, which comprises a machining frame, a mounting frame is fixedly connected to the middle of the top end of the machining frame, sliding grooves are formed in the front side and the rear side of the top end of the mounting frame, and a two-way screw is rotatably connected to the middle of the inner side of the mounting frame. Moving plates are in threaded connection with the left side and the right side of the bidirectional screw rod, a first connecting rod is fixedly connected to the rear end of the left side of the right moving plate, a second connecting rod is fixedly connected to the front end of the right side of the left moving plate, and pushing rods are rotationally connected to the middles of the outer sides of the first connecting rod and the second connecting rod; and the other ends of the two push rods are rotationally connected with a rotating disc. According to the diamond cutting device, the rotation angle of the fixed diamond can be conveniently adjusted, the flexibility and convenience of the cutting device are improved, the working time is saved, the working efficiency is improved, the workload of workers is reduced, and therefore the phenomenon that the work progress is delayed is reduced.

The utility model relates to the technical field of concrete pole processing, and discloses a dust falling device for concrete pole processing, which comprises a trolley, a motor is fixedly mounted at the bottom of the trolley, a water tank is fixedly mounted on the trolley, a water pump is fixedly mounted on the inner wall of the water tank, and the water pump is fixedly mounted on the inner wall of the water tank. According to the dust falling device for concrete electric pole machining, the trolley is pushed to a machining area, a water pump is started to pump water in a water tank into a water pipe through a hose, and water mist is sprayed to a construction area through an atomization nozzle, so that dust falling can be conducted on the construction area; meanwhile, a motor is started to be matched with a rotating shaft, a cam, a telescopic rod, a sliding groove and a sliding rod, a water pipe can be driven to swing in a reciprocating mode, the spraying range of the atomization nozzle can be widened through reciprocating swing of the water pipe, the dust falling effect is improved, and drifting cement dust is prevented from polluting the environment.

The utility model discloses a low dust type polisher for house building construction, which belongs to the technical field of house building construction, and comprises a working plate, the lower surface of the working plate is fixedly connected with a bracket, the upper surface of the working plate is in bolted connection with a vertical plate, and the lower surface of the working plate is fixedly connected with a lower connecting plate; the surface of the vertical plate is connected with a grinding disc through an electric sliding rail. A motor is connected to the surface of the lower connecting plate through bolts, a threaded rod is fixedly connected to the output end of the motor, a limiting groove is formed in the surface of the working plate, an upper connecting block is slidably arranged in the limiting groove, and a long rod is fixedly connected to the surface of the upper connecting block. According to the low-dust type grinding machine for house building construction, during grinding work, a workpiece is placed on the working plate, at the moment, a motor is started, the motor drives a threaded rod to rotate, at the moment, the threaded rod drives a long rod and extrusion rods to move through a movable plate, a limiting groove and an upper connecting block, finally, the extrusion rods on the left side and the right side clamp and fix the workpiece, and the operation process is rapid and convenient.

The coal mill with the dust falling function for thermal power generation comprises supporting frames and a barrel, the barrel is connected between the supporting frames, grinding balls are movably connected in the barrel, one side of the barrel is connected with a feeding port, the other side, away from the feeding port, of the barrel is connected with a discharging port, and the discharging port is connected with a dust falling device. According to the coal mill with the dust falling function for thermal power generation, water mist sprayed by a dust falling spraying head can conduct dust falling on the periphery, when the dust falling angle needs to be adjusted, the dust falling mechanism is connected between the supporting frame and the discharging port, and the filtering mechanism is connected to the top of the barrel. A motor can be started to drive a water pipe to rotate so as to drive a dust falling spray head to spray at all angles, when the end of a threaded rod completely slides into a threaded groove, a filter screen can be fixed, ground coal mines can be screened after the filter screen is fixed, and qualified coal powder can be discharged through a discharging port; and the ground coal powder can be conveniently filtered by using a filter screen.

The utility model discloses a belt conveyor with a dustproof structure, which relates to the technical field of belt conveyors and comprises a conveyor shell, a driving motor and a conveying belt, and the driving motor is mounted on one side of the outer wall of the conveyor shell. When the belt conveyor with the dustproof structure is used, water mist is sprayed through the cleaning structure for dust falling treatment, then dust dissipation is prevented, harm to the body of a worker is reduced, the water mist spraying area of the atomization spray head corresponds to the requirements of people, passing ores are cleaned, then the workload of subsequent procedures is reduced, and the working efficiency is improved. According to the belt conveyor, the working efficiency is improved, so that the effect of facilitating dust falling and ore cleaning is achieved, falling of the ore is buffered through the auxiliary mechanism, the ore is prevented from directly colliding with the conveying belt, then raised dust generated by collision of the ore and the conveying belt is reduced, and the effect of facilitating buffering is achieved when the belt conveyor is used.

The invention relates to the technical field of fly ash stirring, and particularly discloses a fly ash stirring device which comprises a stirring tank and a stirring assembly, a premixing cavity, a stirring cavity and a storage cavity are sequentially arranged in the stirring tank from top to bottom, the stirring assembly is arranged in the stirring cavity, and the storage cavity is used for storing fly ash. A mushroom spray head used for spraying out a hemispherical water curtain is arranged in the premixing cavity, a material containing disc and a driving assembly used for driving the material containing disc to rotate are arranged below the mushroom spray head, a filter screen is arranged between the premixing cavity and the stirring cavity, the filter screen is located below the material containing disc, and a feeding assembly is arranged between the material storage cavity and the premixing cavity; a discharge port of the feeding assembly is located above the containing disc. According to the fly ash stirring device disclosed by the invention, fly ash is covered by the hemispherical water curtain, so that the problem that dust is easy to raise when the fly ash is introduced is solved, the fly ash is dispersed by the material containing disc, the fly ash and the water curtain are preliminarily mixed, and the problem that a large amount of fly ash is easy to cake when being in contact with washing liquid is solved.

The invention belongs to the technical field of gantry machine tools, and particularly relates to a gantry machine tool for large mechanical equipment machining, which comprises a placement assembly, a plurality of T-shaped grooves are formed in the upper surface of the placement assembly, a positioning assembly is slidably connected to the interior of any T-shaped groove, and the positioning assembly is slidably connected to the upper surface of the placement assembly. Adjusting assemblies are fixedly connected to the two ends of the placing assembly, and water spraying assemblies are fixedly connected to the interiors of the adjusting assemblies; through the arranged adjusting assembly and water spraying assembly, an air cylinder is started to drive a rotating rod to move up and down through a connecting ring, and a first guide rail synchronously moves up and down to support the two ends of the rotating rod, so that the height of a water conveying pipe is conveniently adjusted; and then an external power source is connected to start the stepping motor, the rotating rod rotates along with the stepping motor, the water conveying pipe is driven to rotate through the connecting piece, and the spraying angle of the high-pressure spray head is adjusted.

The invention discloses a coal-fired power plant constant-temperature monitoring fire coal drying device, and belongs to the technical field of fire coal drying, the coal-fired power plant constant-temperature monitoring fire coal drying device comprises a drying bin, a sliding door assembly is arranged on the side wall of the drying bin, a hot air blower is fixedly installed on the side wall of the drying bin in a penetrating mode, an exhaust assembly is fixedly connected to the side wall of the drying bin, and a material pressing assembly is fixedly installed on the side wall of the drying bin in a penetrating mode; according to the device, by arranging the structures such as the air exhaust assembly and the material pressing assembly, the air pressure in the drying bin can be kept stable, coal powder flowing along with air in the drying bin can move into a material pressing frame, the dust falling assembly is fixedly installed on the top of the material pressing assembly, and the temperature monitor is fixedly installed on the side wall of the drying bin in a penetrating mode; and after accumulation for a certain time, the pulverized coal is extruded and formed through the combined action of a baffle, a material pressing frame and an extrusion block, then pushed into the conveying frame and moved into the drying bin again through the conveying frame, so that the collected pulverized coal can be dried, and follow-up use is facilitated.

The utility model discloses a dust fall and noise reduction jaw crusher for producing superfine iron powder. The dust fall and noise reduction jaw crusher comprises a base, the top of the base is fixedly connected with a crusher body, the top of the base is fixedly connected with a fixed cylinder, the top of the fixed cylinder is fixedly connected with a case, and an inner cavity of the case is fixedly connected with a double-shaft motor. Through cooperation of the double-shaft motor, the transmission mechanism, the driving bevel gear, the driven bevel gear, a threaded rod, a threaded pipe, a pulley, a groove, a damper and a noise reduction plate, after the device is moved to a designated position, an output shaft of the double-shaft motor drives the threaded pipe to move through the transmission mechanism and the threaded rod, the threaded pipe drives the pulley to move, and the pulley is made to be separated from the ground; and the noise reduction plate carries out preliminary buffering through a damper, meanwhile, the noise reduction plate drives a sliding sleeve to move on a sliding rod through a supporting rod, buffering is carried out through a spring, and damping and noise reduction are carried out on the device, so that the effect of high practicability is achieved, and the problem that an existing device is low in practicability is solved.

The utility model discloses a dust removal and haze reduction device for constructional engineering, which belongs to the technical field of constructional engineering and comprises a water tank, universal wheels are mounted at the lower end of the water tank, a dust removal mechanism is mounted on the side edge of the water tank, a rotating mechanism is mounted at the upper end of the water tank, and a mounting rod is mounted on one side of the upper end of the rotating mechanism. A third hinge base is mounted at the upper end of the mounting rod, and a mounting frame is mounted at the upper end of the third hinge base. By arranging the dust removal mechanism, dust and haze reduction work can be conveniently conducted on the building engineering environment through the dust removal mechanism, and the spraying efficiency of the dust removal mechanism can be further improved through the air blowing assembly; according to the dust and haze reduction device, the rotating mechanism is arranged, the device can be conveniently rotated through the rotating mechanism, dust reduction at different positions and angles can be conveniently conducted on the device, and the stability of the rotating disc in the rotating process can be improved through the arrangement of the sliding block and the annular sliding rail.

The utility model discloses a mixing plant dust removal device with height adjusting and fixed-point dust removal functions. The mixing plant dust removal device comprises a bottom supporting plate, a second-stage hollow telescopic mechanism is arranged on the bottom supporting plate; spray type dust removal equipment is arranged at the top of the second-stage telescopic mechanism; and the height of the second-stage hollow telescopic mechanism is convenient to control, the height of the spray type dust removal equipment is convenient to control, and dust at a specified position is convenient to fall. By using the dust removal device of the mixing plant, dust generated in the mixing process can be remarkably reduced, and air pollution can be reduced.

The utility model relates to the technical field of building construction, and disclose a building construction is used pit guardrail, including net guardrail, the both sides of net guardrail are equipped with stand, the both sides of stand are equipped with the limit slot, the both sides of net guardrail are fixedly installed with the limit rod, the outer wall of limit rod is inserted in the inside of limit slot, the top of stand is screwed with the limit cap, the utility model discloses the limit slot of stand both sides and the limit rod cooperation of two net guardrail sides, can preliminarily limit two net guardrails in the both sides of stand, and through the setting of limit cap, can be screwed and installed in the top of stand, make the both lower pressure of limit cap bottom in the top of two net guardrails, be convenient for fast to the net guardrail of stand both sides and carry out the limit fixed, adopt this kind of mode to be convenient for to the net guardrail of stand both sides and carry out installation, thereby save the time of staff, improve installation efficiency.

The utility model discloses a negative pressure open type aluminum profile powder spraying device, which belongs to the technical field of powder spraying and comprises a bottom plate, a machine block is fixedly connected onto the bottom plate, a spraying frame is fixedly arranged on the machine block, one side of the spraying frame is V-shaped, one side of the spraying frame is provided with a material suction hole, and the material suction hole is communicated with the machine block. One side of the spraying frame is communicated with a material collecting frame through a material sucking hole; according to the powder spraying device, the two limiting hopper-shaped plates conduct discharging through the hopper-shaped discharging crack, so that dust falling into the bottom material frame is not prone to flying out, cleaning of the surrounding environment of a machine body is facilitated, the bottom material frame can send powder inside back into the spraying tank body through the second backflow pipe, the circulating powder spraying effect can be achieved, and the powder spraying efficiency is improved. And in addition, due to the arrangement of the V-shaped side wall on one side of the spraying frame, compared with an arc-shaped side wall, the V-shaped side wall has a good dust guiding effect, and then the powder absorbing effect of the negative pressure air suction equipment can be improved.

The utility model relates to the technical field of noise reduction type fences, in particular to a noise reduction type fence for municipal engineering construction, which comprises a mounting sleeve, a baffle is slidably clamped in the mounting sleeve, a lifting component for adjusting the baffle is mounted in the mounting sleeve, the lifting component comprises a two-way threaded shaft, and the two-way threaded shaft is rotatably mounted in the mounting sleeve. A first hand wheel is mounted at the end, extending to one side of the mounting sleeve, of the two-way threaded shaft, two sliding blocks are in threaded connection with the two-way threaded shaft, the sliding blocks are in sliding clamping connection with the mounting sleeve, a mounting groove is formed in the baffle, and an angle-adjustable dust falling assembly is mounted in the mounting groove. The angle of the water mist nozzle can be flexibly adjusted, so that dust falling is facilitated, the construction environment can be improved, the length of the baffle inserted into the mounting sleeve can be flexibly adjusted through the lifting assembly according to use requirements, the height of the water mist spraying device is increased, and then the applicability of the water mist spraying device is improved.

The utility model discloses a noise reduction enclosure of stable support structure, including: fixed column and enclosure, be provided with the enclosure between the fixed column, be connected with the dismounting mechanism between fixed column and enclosure, the enclosure top is connected with the dustfall mechanism, according to the noise reduction enclosure of stable support structure, pull rope pull can drive the fixed block to pull, and the dustfall mechanism is connected with the fixed block. The fixing block is pulled to extrude the spring, when the end of the fixing block slides out of the fixing groove, the fence can be pulled forwards, the fence is pulled to slide through the sliding groove, when the fence slides, the bottom T-shaped block and the T-shaped groove can be driven to slide, and when the fence slides out of the sliding groove, the fence can be detached. When the valve is opened, water can flow into the fixing pipes through the connecting pipe through pumping, at the moment, the spraying head can be used for spraying, after the valve is opened, water flow can flow into the other set of fixing pipes through the connecting hose to be sprayed through the spraying head, and dust falling on the surroundings is facilitated.

The utility model relates to the technical field of building construction, in particular to a water mist dust fall spraying device which comprises a mounting frame, an adjusting assembly and a fixing assembly, the adjusting assembly comprises a spraying opening, the outer surface of the spraying opening is in threaded connection with an adjusting cap, a stop block is fixedly installed at the top of the adjusting cap, and the fixing assembly is fixedly installed on the mounting frame. The adjusting cap is arranged at the top of the spraying opening and is matched with the stopping block in a rotating mode to adjust water mist sprayed by the spraying opening. According to the embodiment, when the spraying opening needs to spray in the air for dust falling, the adjusting cap is rotated, the stop block in the adjusting cap is located on the side, where the spraying opening sprays to the roadside, of the spraying opening, the spraying water mist range is limited, the situation that water mist sprays to the roadside and influences pedestrians can be avoided, the adjusting cap and the spraying opening can be screwed off, and full-force spraying dust falling can be achieved; and the effects of adjusting the water mist spraying range of the spraying opening and preventing passers-by from being wetted are achieved.

The landscaping spraying device with the dust falling function comprises a horizontally-arranged supporting box body, a water storage tank body is arranged in the supporting box body, one end of the supporting box body is connected with an opening and closing door, a plurality of moving structures are connected to the bottom of the outer wall of the supporting box body, and a pushing handle frame is connected to the top of the outer wall of the supporting box body. A supporting structure is arranged on the upper end face of the supporting box body, the lower end of the supporting structure is rotationally connected with the supporting box body, a steering mechanism is connected to the supporting box body, the upper end of the steering mechanism is in meshed connection with the supporting structure through a gear, supporting frames are connected to the upper end face of the supporting structure, and a rotationally-connected spraying mechanism is arranged between the supporting frames. The front end of the spraying mechanism communicates with the water storage tank body through a water supply structure, the rear end of the spraying mechanism is connected with an air blowing structure, a lifting structure is connected between the spraying mechanism and the supporting structure, and the problem that dust generated in the landscaping process is difficult to treat at present is solved.

The present invention relates to the technical field of dust suppressor devices, and specifically to a secondary negative pressure dust suppressor for a tunnel boring machine. The nozzle is rotatably connected to the inside of a water chamber of a nozzle, and a pull rod is pulled by a fine-tuning motor to pull the nozzle, and a sealing arrangement of a telescopic ring between the water spray port and the nozzle is coordinated, so that the water spray end of the nozzle can be dispersed or aggregated, thereby changing the angle and range of the fog field, and better dust reduction can be performed for different dust fields.

This utility model provides a dust suppression mechanism for a crushing workshop, comprising U-shaped plates on the left and right sides. Each U-shaped plate has a mounting plate at its top, and multiple rotating shafts are rotatably mounted on the inner ends of each mounting plate. Water spray pipes are positioned between corresponding rotating shafts on the inner ends of the two mounting plates. Connecting flanges are mounted on the tops of the multiple water spray pipes, and multiple water spray heads are mounted on the bottoms of the multiple water spray pipes. This dust suppression mechanism for a crushing workshop not only meets the basic requirement of dust suppression during crushing and settling, but also allows the water spray heads to swing via a swing mechanism, preventing dust from overflowing between adjacent water spray pipes, reducing the cost of using the device, and meeting user needs.

The utility model provides an environment-friendly dust falling device convenient to use, which comprises a mounting rack, movable wheels fixedly mounted at the bottom of the mounting rack, a mounting seat fixedly mounted on the surface of the mounting rack, a rotating mechanism mounted inside the mounting seat, a fog gun mounted at the top of the rotating mechanism in a hinged manner, and a dust falling mechanism fixedly mounted at the front end of the fog gun, a pushing handle is mounted on one side of the mounting frame, a rotating mechanism is arranged, a stepping motor is controlled to rotate to drive a gear fixedly mounted at the output end to rotate, the gear is in meshed connection with a gear ring on the surface of a rotating shaft, and when the gear rotates, the gear ring drives the rotating shaft to rotate in the middle of a bearing; the rotating shaft rotates to drive the rotating frame at the top to rotate and adjust on the mounting base, so that the fog gun mounted at the top of the rotating frame drives the nozzle at the front end to rotate along with the rotating frame, dust falling is adjusted according to the dust raising area of the construction site, and dust falling in different directions is facilitated under the condition that the cart is not moved.

The invention relates to the technical field of water plant dosing room dust removal, in particular to a waterworks dosing room dust removal device which comprises a bottom plate and a protective cover mounted on the bottom plate, and dosing ports are formed in the bottom plate and the protective cover; the transmission mechanism comprises two belt wheels, the rotating joint and the rotating shaft are fixedly connected with the belt wheels, and a belt is connected between the two belt wheels; a discharging mechanism is installed at the end of a cyclone separator, powder can be prevented from raising dust again, the cyclone separator separates the powder in the air and then falls onto the surface of a sieve plate, a motor is started to achieve that a rotating shaft drives a cam to intermittently beat a push rod, then the sieve plate located in a discharging pipe swings in a reciprocating mode, intermittent discharging of the powder on the sieve plate is facilitated, and the discharging efficiency is improved. And meanwhile, when the motor drives the rotating shaft to rotate, the belt drives the rotating joint to rotate, the spraying pipe rotates along with the rotating joint, the spraying range is enlarged, and dust falling of flying dust in the protective cover is facilitated.

The dust removal device comprises a base, lead screws are movably arranged at the two ends of the top of the base through bearings, a driving assembly used for driving the lead screws to spin is arranged in the base, a carrier is connected between the lead screws in a threaded and sleeved mode, and spraying assemblies which are symmetrically distributed front and back are arranged in the carrier; a first motor used for driving the spraying assembly to rotate is fixedly installed on the left side wall of the carrier, and a water pumping assembly is fixedly installed on the right side wall of the carrier. The spraying dust removal device has the advantages that the spraying assembly located in the carrier rotates in the opposite direction, the pump machine is controlled to lead a water source into the water collecting barrel through the tee joint, the water source is further sprayed out of the atomization nozzle, and all-directional spraying dust removal is conducted on the surrounding environment; a second motor is controlled to enable an output shaft of the second motor to drive a transmission wheel to rotate, a lead screw fixedly connected with the transmission wheel synchronously rotates, a carrier connected to the outer wall of the lead screw in a threaded and sleeving mode moves up and down along the lead screw, the height of a spraying assembly is adjusted, and dust falling can be conveniently conducted according to different floors.

The utility model discloses a road construction dust fall device which comprises a dust fall device body, the top of the dust fall device body is movably connected with a fixing disc through a supporting rod, the top of the fixing disc is fixedly connected with a support, a pneumatic hammer is arranged in the support, and the top of the fixing disc is fixedly connected with a transmission box. A lifting assembly is arranged at the top of the fixed disc; the lifting assembly comprises a transmission screw. The motor is started, the output end of the motor drives the worm to rotate, the worm rotates to drive the worm gear to rotate, the worm gear rotates to drive the transmission screw to rotate, the transmission screw drives the thread sleeve to adjust the position, the thread sleeve pulls the pneumatic hammer through the fixing sleeve and the supporting rod, and the pneumatic hammer can be conveniently adjusted; and an existing manual adjustment mode is replaced, so that the effect of facilitating real-time adjustment is achieved, and the spraying angle can be adjusted at any time.

The utility model discloses a dust fall and noise reduction device for metro construction, which relates to the field of metro construction and comprises two groups of support columns, arch frames are fixedly mounted at the tops of the two groups of support columns, sound insulation plates are movably mounted on inner rings of the arch frames, a plurality of curtains are mounted at the bottoms of the sound insulation plates, and a dust fall component is mounted between the two arch frames. Positioning assemblies are installed on one sides of the two sets of supporting columns, the dust falling assembly comprises two sets of supporting rods, the two sets of supporting rods are installed between the two arch frames, the peripheries of the two sets of supporting rods are connected with a plurality of sliding bases in a sleeving mode, a connecting pipe is connected between the sliding bases in the two sets of supporting rods, and two spray heads are installed at the bottom of each sliding base; and a plurality of supporting rods and a plurality of groups of sliding seat nozzles can be conveniently connected, dust falling treatment on different construction ranges can be prolonged, meanwhile, the overall sound insulation effect is improved, and a sound insulation plate can be conveniently opened and closed on any side of the construction position.

The utility model discloses a dust fall type hydraulic breaking hammer, which relates to the technical field of hydraulic breaking hammers, and comprises a base, a hydraulic cylinder and a drill rod main body, the hydraulic cylinder is arranged in the middle of the inner wall of the base, the bottom end of the hydraulic cylinder is in butt joint with a drill rod mounting seat, and the drill rod main body is connected in the drill rod mounting seat in a sliding manner. When the dust falling type hydraulic breaking hammer is used, air with dust is guided into the dust suction box through the dust falling mechanism, water flow is sprayed to make contact with the dust in the air for dust falling, then the dust concentration in the working process of the hydraulic breaking hammer is reduced, the dust concentration is prevented from affecting the body health of workers, and therefore the effect of facilitating dust falling is achieved; the auxiliary mechanism assists the drill rod body in moving downwards, so that the impact force of moving downwards of the drill rod body is larger, the movement of the drill rod body is buffered through the spring, and therefore when the hydraulic breaking hammer is used, the effects of facilitating moving downwards assisting and buffering are achieved.

The utility model provides a construction waste winnowing device, and belongs to the technical field of construction waste treatment. The building waste winnowing device comprises a feeding assembly and a winnowing assembly, the feeding assembly comprises a box body, a feeding barrel, a rotating plate and a spring, the feeding barrel is arranged at the top of the feeding barrel in a communicating mode, and the winnowing assembly comprises a sorting column, a blowing pipe, an air blower, a dust outlet pipe and a water tank. According to the construction waste winnowing device, construction waste can be evenly dispersed, so that the construction waste evenly falls, the falling caked construction waste can be impacted and separated, follow-up sufficient winnowing is facilitated, dust blown out in the winnowing process can be guided by arranging a sorting column, an air blowing pipe, an air blower, a dust outlet pipe and a water tank, and the dust can be effectively separated. And water passing through the water tank plays a good role in dust falling, so that the dust removal device is worthy of being popularized vigorously.

The utility model discloses a building construction site vehicle dust falling mechanism which comprises two water tanks and a control assembly fixedly installed between the two water tanks, inclined plates are arranged on the two sides of the control assembly, and the utility model relates to the technical field of vehicle dust falling. According to the vehicle dust falling mechanism for the building construction site, a vehicle downwards presses a sliding plate, the sliding plate downwards presses a control button, the control button can control two corresponding electromagnetic control valves on the upper portion to be opened, a plurality of atomizing nozzles in a U-shaped water storage frame on the upper portion spray water mist to the vehicle, the vehicle slowly moves to sequentially downwards press the sliding plate, and dust falling is achieved. When the vehicle leaves from the sliding plate, the sliding plate moves upwards and resets without pressing the control button under the action of the spring, and the plurality of corresponding atomizing nozzles above stop spraying water mist, so that invalid spraying of part of the nozzles can be effectively prevented, and the vehicle is prevented from falling off. And the waste of water resources is reduced.

The dust falling equipment comprises a water tank body, the top of the water tank body is rotationally connected with a circular plate through an opening, the bottom of an inner cavity of the water tank body is rotationally connected with a rotating plate through a bearing, and a rotating rod is fixedly connected between the top of the rotating plate and the bottom of the circular plate; the top of the circular plate is fixedly connected with a rotating frame, and a fog gun barrel is rotationally connected between the front portion and the rear portion of an inner cavity of the rotating frame. According to the dust falling equipment for the construction site, water is introduced into a water outlet pipe through a submersible pump, water is introduced into an annular pipe through a hose, the annular pipe sprays water mist through a plurality of atomizing nozzles, water drops on the inner wall of a mist gun barrel can be blocked by a conical baffle, the water drops can be effectively prevented from flowing back to a fan, and therefore the fan can be well protected, normal use of the fan is guaranteed, and the practicability is high. And the water drops blocked by the conical baffle plate flow into the water tank body through the water pipe to be recycled.

The utility model relates to the technical field of limestone, in particular to limestone-based crushing equipment, and solves the problems that dust is still generated in the crushing process in the prior art, and if water is continuously sprayed to the limestone for dust falling in the crushing process, flowing water can take away part of crushed particles, so that the limestone is wasted. The limestone-based crushing equipment comprises a crushing bin, a blanking channel and a water collecting tank, the discharging channel is connected to the top of one side of the crushing bin and communicates with the interior of the crushing bin. The water collecting tank is arranged on one side of the crushing bin and located at the bottom of the discharging channel. A feeding port is formed in one side of the top of the discharging channel, an air draft assembly is arranged at one end of the discharging channel, a blocking structure is arranged on one side in the discharging channel, and a spraying module is arranged in the discharging channel and located on one side of the blocking structure. The dust falling device is reasonable in structure, dust falling can be conveniently achieved, meanwhile, waste of raw materials cannot be caused, and dust falling sewage can be collected.

A safe discharging method for a waste lithium-ion battery includes steps of mixing the waste lithium-ion battery and conductive particles in a discharge chamber to make the waste lithium-ion battery to discharge, calculating an internal resistance of the discharge chamber according to pressurization pressure; calculating a discharge rate of the waste lithium-ion battery; dynamically adjusting the pressurization pressure to keep the discharge rate of the waste lithium-ion battery to be 0.1-3 C; monitoring an internal temperature of the discharge chamber in real time; when the internal temperature is greater than an early warning temperature, reducing the pressurization pressure by 20%-60%; when the internal temperature is greater than a warning temperature, relieving the pressurization pressure to 0 N, reducing the pressurization pressure by 60%-90% after the internal temperature drops below the early warning temperature, and re-compacting to discharge the waste lithium-ion battery.