130results about How to "Improve dust suppression efficiency" patented technology

The invention belongs to the technical field of mining, and particularly relates to a movable dust falling assembly for surface mining, which comprises a bottom plate, a U-shaped supporting plate is arranged on the top surface of the bottom plate, a circular shaft is rotatably connected to the top surface of the bottom plate, and the top end of the circular shaft is rotatably connected with the supporting plate. A water storage cylinder is arranged on the inner side, close to the top surface, of the supporting plate, a water spraying cylinder is fixedly connected to the left end of the water storage cylinder, a pressure cylinder is fixedly connected to the inner wall of the water spraying cylinder, and a spraying assembly is arranged on the end face of the water spraying cylinder; two rotating shafts are fixedly connected to the side wall of the water storage cylinder in a front-back symmetry mode, the other ends of the rotating shafts are rotationally connected with the supporting plate, a protective shell is fixedly connected to the front side wall of the supporting plate, and an angle adjusting assembly is arranged in the protective shell. The angle can be manually or electrically adjusted according to requirements, meanwhile, the angle of the atomizing nozzle can be changed, and the dust falling efficiency is improved.

The utility model discloses a dust falling structure for a concentrating machine, which relates to the field of mine machinery, and comprises a box body, a feed hopper is fixedly arranged at the right part of the upper end of the box body, and screening components are fixedly arranged at the bottom positions of the left part and the right part of the inner wall of the box body. According to the dust falling structure for the concentrating machine, ore particles of different sizes can be classified and collected through the screening assembly, the screening effect can be obvious due to the vibration effect of the screening plate, and the possibility that the three screening net areas are blocked can be reduced. And when the sieve plate vibrates, the plurality of shifting plates drive the ore materials to quickly move on the guide plate, so that the area between the lower part of the feeding hopper and the guide plate can be prevented from being blocked. Dust generated in the box body can be absorbed through the dust falling assembly, dust on the two filter plates can be scraped off through the cleaning assembly, and the dust enters the collecting box through the two inclined grooves.

The invention belongs to the technical field of atomizing water spraying, and discloses atomizing water spraying equipment for municipal construction, which comprises a base, a water tank is fixedly connected to one side of the upper surface of the base, a fixing frame is fixedly connected to the upper surface of the base, and a water pump located on one side of the fixing frame is fixedly connected to the upper surface of the base. A movable plate movably sleeves the inner side of the bottom of the fixed frame, a hydraulic oil pump movably sleeves the outer circular surface of the convex part of the movable plate, a shell movably sleeves the middle part of an output shaft of the hydraulic oil pump, and two rotating rods movably sleeve the inner side of the convex part of the upper part of the fixed frame. By means of the design of the pressurizing mechanism, airflow generated by the fan blades is enhanced, by optimizing the airflow path and reducing energy loss, the effect of obtaining larger wind power under the same power can be achieved, energy is saved, the operation cost is reduced, water mist can be conveyed to a farther distance through the stronger wind power, the water mist can be atomized more sufficiently, and the water mist atomization effect is improved. Therefore, the dust falling efficiency is improved.

The utility model discloses a multi-angle dust suppression machine for building construction, which comprises an arranged rack, a water storage tank is arranged on the rack, an auxiliary cylinder is connected to the water storage tank through a protection box, a rotating assembly is arranged in the protection box, the rotating assembly comprises a double-shaft motor arranged in the protection box, and the double-shaft motor is connected with the auxiliary cylinder through the protection box. The first output end of the double-shaft motor is connected with a half gear, the side end of the half gear is connected with a full gear in a meshed mode, a first rotating shaft is connected into the full gear in a penetrating mode, the end of the first rotating shaft is connected with a rotating disc, and the rotating disc is installed at the bottom of the auxiliary cylinder. According to the multi-angle dust falling machine for building construction, the rotating assembly drives the rotating disc to rotate in the through groove, so that the auxiliary barrel on the rotating disc rotates at an angle, the overall rotating stability is high, dust falling operation is facilitated, the problem that the service life of equipment is shortened due to abrasion is solved, the overall automation degree is high, and the practicability is high. And the problem of inconvenience caused by manual adjustment is reduced.

The invention discloses an environment-friendly construction dust suppression device and method, and relates to the technical field of environment-friendly construction. According to the environment-friendly construction dust suppression device, through the design of a composite mechanism, a suction fan is inserted into the outer side of an external connection disc, so that disassembly and assembly are facilitated, follow-up replacement and maintenance are facilitated, the suction fan is started, wind enters from the side, close to a flowing pipe, of the inner wall of a composite shell and flows towards the side of the suction fan, and therefore dust and smell on a site are absorbed; the situation that the site environment is too severe, personnel safety is affected, potential safety hazards are reduced, the flowing pipe is of a structure with the two wide ends and the middle narrow and small, according to the Bernoulli principle, the diameter of the pipeline is reduced, the flowing speed of gas is increased, and therefore the operation effect is improved, and the cleaning efficiency of the construction site is improved; dust and air flow enter the composite shell, harmful gas of the air flow is filtered and purified through the filtering mechanism, and therefore normal operation of equipment is kept.

The invention belongs to the technical field of fully-mechanized excavating equipment, and relates to a gas-water integrated annular spraying device for a fully-mechanized excavating machine, which mainly comprises a water inlet joint, a gas inlet joint, a gas-water sleeve, a gas-water nozzle, a connecting sheet, an arc-shaped connecting plate and an arc-shaped baffle. The two arc-shaped spraying devices are connected into a ring and are fixed at the end part of the cutting arm of the heading machine, so that a cutting dust production source is covered in a full range. According to the air-water integrated design, compressed air and supplied water of a driving working face are used as air-water sources, enter the corresponding air-water chambers through the air inlet connector and the water inlet connector and then are in threaded connection with the air-water nozzles through the air-water sleeves to form the air-water integrated spraying device. Water is changed into atomized particles through the liquid cavity, meanwhile, the high-pressure gas is mixed with the atomized particles under the action of the air distribution opening, and conical water mist is sprayed out. The dust suppression device is simple in structure, convenient to install, remarkable in dust suppression effect, capable of improving the safety and the environmental protection property of tunneling operation and suitable for being used by various fully-mechanized excavating machines.

The utility model discloses a flying dust reducing spraying device, which belongs to the technical field of flying dust treatment and is characterized by comprising a moving box, a fog gun machine is arranged at the top of the moving box, a water pump component is bolted on the inner wall of the moving box, a transmission pipe is fixedly communicated with the right side of the water pump component, and a flow valve is arranged on the surface of the transmission pipe. The right side of the conveying pipe fixedly communicates with a filtering box, a filtering mechanism is inserted into the inner wall of the filtering box, and the problems that most of existing flying dust reducing spraying devices are not provided with filtering structures, impurities, particulate matter or microorganisms are contained in water, the impurities, particulate matter or microorganisms are prone to being accumulated in spraying heads after being used for a long time, and spraying holes of the spraying heads become small and even are completely blocked are solved; the problems that in the prior art, in the prior art, subsequent dust falling work is affected, most dust falling devices can only conduct spraying dust falling at specific angles, an area needing dust falling cannot be effectively covered, part of flying dust cannot be restrained, and the expected dust falling effect cannot be achieved are solved.

The invention relates to the technical field of dustproof cleaning, in particular to an engineering project site dustproof cleaning device which comprises a shell, the side wall of the shell is fixedly connected with an air pump through a support, and an input pipe of the air pump is fixedly connected with the shell in a penetrating mode; a cleaning mechanism is arranged in the shell and composed of an airflow assembly, a dust falling assembly and a control assembly, the airflow assembly comprises an air channel and a dust falling cavity, the dust falling cavity is formed in the shell and communicated with the outside through the air channel, and an input pipe of the air pump penetrates and extends into the dust falling cavity. The shell is rotationally connected with a rotating shaft in a penetrating mode through a bearing, the dust falling assembly comprises two side cavities and a water cavity, and the side cavities and the water cavity are both formed in the shell. The device disclosed by the invention has the advantages that the device can avoid the severe field environment and the waste of water resources while spraying and settling dust, and meanwhile, the spraying and settling speed can be automatically adjusted, so that the automation degree is higher.

The invention relates to the technical field of building construction, and discloses a dust-proof spraying device for building construction, which comprises a base, an inner spraying mechanism is fixedly connected to the upper surface of the base, an outer spraying mechanism is fixedly connected to the top of the inner spraying mechanism, and a synchronous adjusting mechanism is fixedly connected to the bottom of the outer spraying mechanism. The inner spraying mechanism comprises a support, the support is fixedly connected with the top of the base, spraying and dust falling are carried out after dust is sucked in, water mist can accurately act on dust particles, the utilization rate of water resources is increased, and in the dust falling process, the dust falling efficiency is improved. And part of large water drops attached with dust particles can sink into a water collecting tank at the bottom of the mechanism under the action of gravity. After simple filtering treatment, the water can be pumped to the spraying nozzle again for spraying and dust falling. Through the cyclic utilization mode, the requirement for fresh water resources is further reduced, and efficient utilization of the water resources is achieved.

The invention relates to a spraying dust-settling effect testing system, and the system comprises a testing platform main body which is internally integrated with a liquid storage tank and an automatic spraying parameter collector, and is used for automatically monitoring the water pressure and flow in a spraying process; the moving mechanism comprises moving wheels and is convenient for the test platform to move; the sampling mechanism is composed of a sampling box, a communication assembly and a sampling head and is used for collecting dust in the air; the air extracting pump and the constant-flow adjusting controller are respectively used for extracting an air sample and adjusting the air flow speed to be constant; the exhaust mechanism is used for exhausting sampled air through an exhaust pipe; the atomizing and spraying mechanism comprises an atomizing nozzle and a water supply pipe and is used for atomizing liquid and spraying the liquid to the space to be detected for dust falling. The system may also comprise additional structures such as a direction-adjustable sampling mechanism, a plurality of atomizing nozzles, a fixing clamp, a liquid inlet valve for controlling external liquid to enter the liquid storage tank and the like.

The utility model discloses a double-gun-barrel type fog gun machine, and belongs to the technical field of dust falling equipment. A double-gun-barrel type fog gun machine comprises a main machine, a rotating assembly used for controlling the flow direction of air flow is installed at the air outlet position of the main machine, a nozzle is installed at the outlet position of the rotating assembly, the rotating assembly can provide rotating driving force for the nozzle when the rotating assembly is conducted, and the rotating assembly comprises two branch pipes. And a nozzle is arranged at the outlet position of each branch pipe. The rotating assembly can control opening and closing of the nozzles, the nozzles have different ranges to adapt to various dust falling scenes by making contact with the nozzles of different numbers, the air outlet mode of the nozzles can be controlled through the rotating assembly, the nozzles can automatically rotate or directionally fall dust, use is flexible, the two nozzles are arranged and face opposite, and the dust falling efficiency is improved. The covering area of dust fall spraying can be increased, the inclination angle of the nozzle can be changed, meanwhile, raised dust at different heights is treated, and the dust fall efficiency is improved.

The utility model relates to the field of coal mine dust removal equipment, in particular to a pneumatic wet dust remover. The wet-type dust removal device comprises a dust removal cylinder with two open ends and a wet-type dust removal assembly located in the dust removal cylinder. The wet-type dust removal assembly is provided with a spray head and fan blades, the fan blades are driven to rotate to generate air flow by taking inlet and outlet air as power, and meanwhile, the air flow is linked with water drops sprayed by the spray head to wet and collect dust. The wet-type dust removal assembly is arranged, kinetic energy is provided through the pneumatic motor, and the fan blades are driven to rotate. The fan blades rotate to generate a negative pressure environment, and dust is sucked into the dust removal cylinder. And meanwhile, the underground water filtered by the filter is sprayed out after being atomized by the spray head to humidify the sucked dust. Through wind-water linkage, the contact volume of wind and water and coal dust is increased, and the dust falling efficiency is improved.

The utility model discloses a dust falling device for a construction site, and particularly relates to the technical field of building construction dust falling, the dust falling device comprises a cart, the cart comprises a bottom plate, a push handle is fixedly connected to the rear side of the upper end of the bottom plate, universal wheels are fixedly connected to the four corners of the lower end of the bottom plate, and a height adjusting assembly is fixedly connected to the middle of the upper end of the bottom plate. A dust falling assembly is fixedly connected to the upper end of the height adjusting assembly, a water storage tank is fixedly connected to the rear side of the upper end of the bottom plate, and a water pump is fixedly connected to the upper end of the water storage tank. According to the dust falling device for the construction site, the height of the device can be adjusted according to the environment of the construction site through the arrangement of the height adjusting assembly, so that the dust falling device can be more accurately aligned with a dust generation source for dust falling, and the dust falling efficiency is improved; the spraying mechanism, the fan and the like are arranged, so that fine fog drops generated by a spraying part can be quickly blown away to a wider area, the fog drops can cover the whole dust falling area more uniformly, and the dust falling effect is improved.

The invention discloses a building blasting demolition dust falling device and method, and relates to the technical field of dust falling in building blasting demolition, the device comprises a rack, a water storage tank, a spraying mechanism and a spraying mechanism, the spraying mechanism is composed of a spraying assembly and a wind power guiding assembly, and the wind power guiding assembly is connected with the spraying assembly through an air outlet pipe; the spraying mechanism comprises a spraying assembly capable of spraying a water curtain, and in addition, the device further comprises a swinging assembly, a lifting assembly and an annular water bag used for carrying out dust falling on a blasting point. According to the method, dust raising is effectively controlled in different stages before and after building blasting through pre-spraying of the water curtain and the water mist, the dust falling efficiency is remarkably improved, and environmental pollution is reduced.

The utility model relates to the technical field of intelligent dust removal, in particular to an intelligent spraying dust removal system of an underground powerhouse, which comprises a mobile platform and a plurality of dust sensors, the mobile platform is provided with a driving device and a control box, and the driving device is electrically connected with the control box; the mobile platform is provided with a water storage tank, a partition box and a spraying head from bottom to top, the spraying head is connected with the water storage tank through a water hose, the water hose is fixedly connected with a water pump, the water pump is arranged in the partition box, and the control box is electrically connected with the water pump. A rotating seat electrically connected with the control box is arranged on the upper surface of the partition box, and the spraying head is fixedly connected with the rotating seat through a rotating shaft. When the intelligent spraying dust removal system for the underground powerhouse is used, manual intervention is not needed, intelligent dust removal is achieved, dust removal efficiency is improved, and the intelligent spraying dust removal system has good use value.

The invention discloses a coal mine cutting dust strong fog flow-double negative pressure control dust removal device which comprises an air draft tube arranged on a fully-mechanized coal winning machine and further comprises a negative pressure dust extraction sleeve arranged on a cutting arm of the fully-mechanized coal winning machine in a sleeving mode in an annular air tube mode, and a negative pressure guide tube is led out of the air draft tube to be connected with the negative pressure dust extraction sleeve. An air draft barrel of the heading machine is connected with an air draft fan to form a working face negative pressure field, meanwhile, a negative pressure guide pipe is led out of the air draft barrel to be connected with a negative pressure dust suction sleeve arranged on a cutting arm in a sleeving mode, a dust source negative pressure field closer to a dust production source is formed, and the dust source negative pressure field and the working face negative pressure field cooperatively form the double-negative-pressure effect. The spraying field of the outer spraying device is in an inward shrinkage state under the action of a dust source negative pressure field, sprayed fog drops are denser, the wind flow disturbance resistance is better, the strong fog flow effect is formed, and the dust falling efficiency is improved.

The construction spraying type dust falling device comprises a box body, installation grooves distributed in an annular array mode are formed in the outer wall of the box body, hydraulic cylinders are installed in the installation grooves, a rotating disc is installed at the upward output end of each hydraulic cylinder, a spiral column is fixed to the middle of the upper end of the box body, and the spiral column is fixed to the middle of the lower end of the box body. And the rotating disc is arranged on the spiral column in a sleeving mode and can spirally rotate up and down along the spiral column, and high-pressure spray heads distributed in an annular array mode are installed on the outer wall of the rotating disc. The threaded column with the spiral groove in the surface is designed to serve as a movement track, the hydraulic cylinder is used for driving the rotating disc to move up and down, rotation of the rotating disc is achieved under the action of the threaded column, up-down movement of the hydraulic cylinder can be converted into up-down back-and-forth rotation of the high-pressure spraying head on the outer wall of the rotating disc, and the spraying range is enlarged; and the dust falling efficiency is improved.

The present invention relates to the technical field of dust suppression equipment, and has a protective device for road environmental protection construction, including a guardrail, and also includes a dust suppression mechanism arranged on the guardrail; the dust suppression mechanism includes an annular water tank, an annular pipe, a plurality of dust suppression components arranged equidistantly along the circumferential direction of the annular pipe, a chamber opened in the guardrail, and a driving component for driving the annular pipe to rotate; the annular water tank is located in the chamber, and the annular water tank is fixedly connected to the chamber; a through hole is opened on the chamber, the annular pipe is slidably connected to the annular water tank, a plurality of water inlet holes are opened on the annular pipe, and a plurality of water outlet holes are opened on the annular water tank, and the water inlet holes and the water outlet holes are connected; the dust suppression component includes an atomizing nozzle, a rubber tube, an extrusion block, and a power unit for driving the extrusion block to perform vertical reciprocating motion; the atomizing nozzle is connected to the annular pipe; the rubber tube is connected to the atomizing nozzle; and the rubber tube is located on the motion trajectory of the extrusion block. In order to solve the problem that the atomizing nozzle of the existing protective device has a small range of action and incomplete dust suppression.

The utility model relates to the technical field of building construction dust fall, in particular to a dust fall device for public building construction, which comprises a base, universal wheels arranged at four corners of the lower end of the base, a water tank fixedly mounted at the upper end of the base, a push rod fixedly mounted at the rear end of the water tank, a filter body detachably mounted in the water tank, and a dust fall mechanism arranged at the front end of the water tank. The dust falling mechanism comprises two supporting frames and a first forward and reverse motor, sliding grooves are formed in the rear ends of the two supporting frames, a transmission block is integrally formed between the two supporting frames, a lead screw is fixedly installed at the output end of the first forward and reverse motor, and a dust removing body is movably installed between the two supporting frames. According to the dust falling device for public building construction, the spraying height of the dust falling spray head can be changed, the spraying direction of the dust falling spray head can also be changed, large-area spraying can be achieved, the dust falling efficiency is improved, practicability is high, and meanwhile water resources are saved.

The present invention discloses an aerial dust reduction device for building construction, which includes a U-shaped frame, a driving component, a spraying component, and a climbing mechanism. The middle section of the U-shaped frame is penetrated and fixedly connected with a control panel. One side of the U-shaped frame is fixedly connected with a guide rail, and the guide rail is arranged on one side of the wall. By setting the driving component, the coordinated and synchronous operation of each structure of the device is driven by a single signal, eliminating the manual operation link and greatly improving the use efficiency of the device. By setting the spraying component, the spraying angle of the water curtain is synchronously adjusted during the operation of the device to automatically adapt to the height of the building, thereby further improving the automation degree of the device. By setting the climbing mechanism, the device has the function of automatically climbing along the outer wall of the building and automatically opening and closing according to the height of the outer wall of the building, eliminating the repeated disassembly and assembly link and effectively improving the dust reduction efficiency of the device.

The invention discloses a road surface cleaning device for road engineering, and belongs to the technical field of road engineering, the road surface cleaning device comprises a fixed bottom plate, the fixed bottom plate is fixedly connected with a fixed frame, the fixed frame is fixedly connected with a spraying motor through a support, and the output end of the spraying motor is fixedly connected with a rotating shaft; the rotating shaft is fixedly connected with a first worm, the first worm is meshed with a first worm gear, the first worm gear is fixedly connected with a first rotating shaft, the upper end of the first rotating shaft is fixedly connected with a first half gear, and the first half gear is meshed with a full gear. According to the dust suppression device, dust suppression agents, water mist and other dust suppression substances can be more evenly distributed in air, dust particles make full contact with the dust suppression substances and settle, the dust suppression range is widened, the dust suppression efficiency is improved, equipment can be protected, the baffle can be always attached to the ground in a rolling mode, the sweeping effect is achieved, and the dust suppression effect is improved. And the applicability of the cleaning work is wider.

The large-range dust falling equipment for building engineering construction comprises a fog gun machine, a plurality of air guide plates are arranged on the inner side of the left end of the fog gun machine, and the upper ends and the lower ends of the sides, away from the output end of the fog gun machine, of the air guide plates are rotationally connected with the inner wall of the fog gun machine; swing mechanisms are arranged at the tops of the left ends of the air deflectors and used for driving the left ends of the air deflectors to synchronously swing front and back, a mounting column is fixedly mounted at the top of the fog gun machine, and a power mechanism is arranged on the outer side of the top end of the mounting column and used for controlling the front-back swing amplitude of the left ends of the air deflectors according to the magnitude of site wind power. And a direction adjusting mechanism is arranged in the middle of the mounting column and used for adjusting the swinging direction of the left end of the air guide plate according to the air direction, and the problem that existing large-range dust falling equipment for building engineering construction does not have the function of automatically adjusting the spraying angle according to the air direction is solved.

The utility model relates to the technical field of dust falling devices, and discloses a high-pressure water zero dust falling device for a mixing plant, which solves the problems that the existing dust falling device is inconvenient to quickly fall dust and is inconvenient to remove dust on a mixing truck, and comprises a frame-shaped support frame, mixer truck cleaning and dust removing mechanisms are arranged on the two side edges and the top end of the interior of the frame-shaped supporting frame, each mixer truck cleaning and dust removing mechanism is composed of a plurality of cleaning units and a swing adjusting mechanism, and a throwing type dust falling mechanism is arranged in the middle of the top end of the frame-shaped supporting frame. The throwing type dust falling mechanism is composed of an angle adjusting assembly, a high-pressure spray pipe and a plurality of high-pressure spray heads, the angle adjusting assembly is connected to the middle of the top end of the frame-shaped supporting frame, the high-pressure spray pipe is connected to the top end of the side edge of the angle adjusting assembly, and the high-pressure spray heads are connected to the top ends of the side edges of the high-pressure spray pipe; by means of the dust falling device, rapid dust falling of a designated area in the mixing plant can be achieved, and meanwhile cleaning and dust removing can be conveniently conducted on the mixing truck.

This invention discloses a low-temperature carbon dioxide high-expansion foam dust suppression system and method for ore pass unloading. The dust suppression system includes a first high-expansion foam generator and a second high-expansion foam generator at the ore pass unloading port and ore bin, respectively. A foaming dust suppressant is mixed with inert carbon dioxide gas and a sulfide ore inhibitor to create foam with both dust suppression and ore spontaneous combustion inhibition properties. Because the foam contains an ore inhibitor, the spontaneous combustion tendency of ore dust upon contact with the foam is effectively reduced. Simultaneously, after the foam bursts, the low-temperature carbon dioxide gas within it lowers the ambient temperature and oxygen concentration within the ore pass, creating a low-temperature, low-oxygen environment and reducing the risk of ore spontaneous combustion and agglomeration within the ore pass. Furthermore, the low-temperature carbon dioxide generates natural convection, inducing airflow within the ore pass and accelerating foam diffusion. Therefore, this invention's low-temperature carbon dioxide high-expansion foam dust suppression system achieves synergistic prevention and control of dust and ore spontaneous combustion within the ore pass.

The utility model belongs to the technical field of building construction equipment, and discloses a building construction spraying device which comprises a bottom plate, a water storage tank is fixedly connected to the center of the top of the bottom plate, a disc is movably installed on the top of the water storage tank, a circular shaft is movably connected to the center of the disc in a sleeved mode, and the bottom of the circular shaft is fixedly connected with the top of the water storage tank. A water pump is fixedly installed on the left side of the top of the disc, and a water pumping pipe is fixedly installed in the center of the right side of the water pump. By arranging the rotating block, the pneumatic cylinder, the connecting block and the round rod, an operator starts the pneumatic cylinder, pushes the connecting block and the round rod to move on the inner surface of the rotating block and drives the disc, the rectangular block and the sprinkling pipe to rotate with the round shaft as the circle center, and the operation is repeated, so that the sprinkling range of the sprinkling pipe is enlarged, and the dust falling range of the device is expanded; the flexibility of the device is improved, so that the dust falling efficiency of the device is greatly improved.

The utility model discloses a dust falling device for stainless steel composite board welding, including sewage mechanism and dust falling mechanism, dust falling mechanism includes dust falling box, explosion door, water storage tank, water inlet pipe, water spray board, a plurality of sprayers, fixed plate, lift cylinder, bottom plate, motor box, clamping box, clamping groove, waterproof motor, bidirectional screw rod, sliding block, clamping plate, small sliding block and waterproof cloth, and the drive of waterproof motor to bidirectional screw rod makes clamping plate clamps composite board, and rotates under the drive of motor box after being taken up by lift cylinder, can let the front and back of composite board can all be sprayed to water, and sewage mechanism includes sewage plate, sewage guide groove, sewage groove, sewage pipe, electromagnetic valve, top plate and grating plate, and the sewage after dust falling is guided under the grating plate in sewage guide groove and sewage groove and is discharged through sewage pipe, effectively carries out unified collection and processing to sewage, avoids the influence outside environment. The scheme improves dust falling efficiency and sewage treatment efficiency greatly.

The utility model relates to the field of building construction, in particular to a dust fall spraying device for building construction. The utility model provides a building construction dust fall spraying device which can widen the spraying range so as to improve the dust fall efficiency. A building construction dust fall spraying device comprises bases, outer rods, lifting rods, a mouth-shaped frame, forked fences and a spraying mechanism, the two bases are symmetrically arranged front and back, the outer rods are connected to the upper sides of the bases, the lifting rods are connected to the outer rods in a sliding mode, the mouth-shaped frame is connected between the lifting rods, and the forked fences are arranged on the mouth-shaped frame. The mouth-shaped frame is rotationally connected with the forked fences, and the spraying mechanism is arranged on the forked fences. The angle rod rotates to drive the forked fences to rotate on the mouth-shaped frame, the top plate rotates to drive the spray heads to rotate, the directions of the spray heads are different, and the effects that the spraying range is widened, and therefore the dust falling efficiency is improved can be achieved.

The invention discloses a hard rock coal mine heading machine with a dust falling structure, and relates to the technical field of engineering machinery, the hard rock coal mine heading machine comprises a heading machine body, a water inlet pipe and a dust falling pipe installed on one side of the fixed top of the heading machine body, a collecting box is fixedly installed on one side of the heading machine body, and one side of the bottom of the dust falling pipe is connected with a gas conveying pipe; the bottom end of the gas conveying pipe is installed on the heading machine body, the side, close to the collecting box, of the dust falling pipe is fixedly connected with a discharging pipe through a flange, the end, away from the dust falling pipe, of the discharging pipe is communicated with the collecting box, and a flow baffle is fixedly connected to the middle of the inner bottom face of the collecting box. A water outlet is formed in one side of the front surface of the collecting box; the adjusting assembly is arranged on the side, away from the air outlet pipe, of the interior of the dust falling pipe, and the problems that driving of the dust removal device is associated with rotation of the drill bit, when tunneling operation is not needed and only dust removal is needed, the drill bit idles, energy consumption is high, and the dust removal efficiency is affected are solved.

The invention provides a high-altitude tunnel operation space intelligent spraying dust suppression system, and belongs to the technical field of tunnel construction dust suppression. Comprising a vehicle body, a water storage tank is installed at the top of the vehicle body, a dust washing pool is installed at one end of the top of the vehicle body, an emergency fire hose is installed at the front end of the water storage tank, a water inlet is formed in the top of the water storage tank, a connecting base is installed at one end of the water storage tank, and a dust removal box is installed at one end of the connecting base. By arranging the dust recycling assembly and the dust removal filtering assembly, the water mist spraying angle and area range are adjusted, the efficiency of tunnel dust removal is improved, the content of dust on the working face is reduced, the air environment in a tunnel is improved, water mist recycling is achieved, ground icing is avoided, and the personal safety of workers is protected; the working time of workers in a good environment is prolonged, water circulation is filtered and reused, water resources are saved, and meanwhile the working time of the device is prolonged.

This utility model relates to the technical field of spray dust suppression devices, and discloses a spray dust suppression device for a roadheader. It includes a threaded head, a water supply pipe fixedly installed at the bottom of the threaded head, a branch pipe fixedly installed at the bottom of the water supply pipe, and a three-stage mist particle covering dust suppression mechanism fixedly installed at the end of the branch pipe away from the water supply pipe. This roadheader spray dust suppression device, through its three-stage mist particle covering dust suppression mechanism, utilizes three high-pressure atomizing nozzles (a first, second, and third nozzles) with different angles and layouts. High-pressure atomizing nozzle a first nozzle blocks upward-rising dust, high-pressure atomizing nozzle a second nozzle captures dust escaping from the edges, and high-pressure atomizing nozzle a third nozzle forms a three-dimensional interception barrier. The three nozzles complement each other in their coverage, effectively covering and suppressing dust in the area above and to the sides of the conveyor belt, while simultaneously blocking dust escape channels, thus improving the overall dust suppression efficiency of the roadheader's transport section.